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6de9cd9a | 1 | /* Backend function setup |
85ec4feb | 2 | Copyright (C) 2002-2018 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" |
6de9cd9a DN |
49 | |
50 | #define MAX_LABEL_VALUE 99999 | |
51 | ||
52 | ||
53 | /* Holds the result of the function if no result variable specified. */ | |
54 | ||
55 | static GTY(()) tree current_fake_result_decl; | |
5f20c93a | 56 | static GTY(()) tree parent_fake_result_decl; |
6de9cd9a | 57 | |
6de9cd9a DN |
58 | |
59 | /* Holds the variable DECLs for the current function. */ | |
60 | ||
417ab240 JJ |
61 | static GTY(()) tree saved_function_decls; |
62 | static GTY(()) tree saved_parent_function_decls; | |
6de9cd9a | 63 | |
6e2830c3 | 64 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
77f2a970 | 65 | static GTY(()) tree nonlocal_dummy_decls; |
6de9cd9a | 66 | |
9abe5e56 DK |
67 | /* Holds the variable DECLs that are locals. */ |
68 | ||
69 | static GTY(()) tree saved_local_decls; | |
70 | ||
6de9cd9a DN |
71 | /* The namespace of the module we're currently generating. Only used while |
72 | outputting decls for module variables. Do not rely on this being set. */ | |
73 | ||
74 | static gfc_namespace *module_namespace; | |
75 | ||
d74d8807 DK |
76 | /* The currently processed procedure symbol. */ |
77 | static gfc_symbol* current_procedure_symbol = NULL; | |
78 | ||
de1184c0 TB |
79 | /* The currently processed module. */ |
80 | static struct module_htab_entry *cur_module; | |
6de9cd9a | 81 | |
b8ff4e88 TB |
82 | /* With -fcoarray=lib: For generating the registering call |
83 | of static coarrays. */ | |
84 | static bool has_coarray_vars; | |
85 | static stmtblock_t caf_init_block; | |
86 | ||
87 | ||
6de9cd9a DN |
88 | /* List of static constructor functions. */ |
89 | ||
90 | tree gfc_static_ctors; | |
91 | ||
92 | ||
8b198102 FXC |
93 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
94 | static int seen_ieee_symbol; | |
95 | ||
6de9cd9a DN |
96 | /* Function declarations for builtin library functions. */ |
97 | ||
6de9cd9a DN |
98 | tree gfor_fndecl_pause_numeric; |
99 | tree gfor_fndecl_pause_string; | |
100 | tree gfor_fndecl_stop_numeric; | |
101 | tree gfor_fndecl_stop_string; | |
6d1b0f92 | 102 | tree gfor_fndecl_error_stop_numeric; |
d0a4a61c | 103 | tree gfor_fndecl_error_stop_string; |
6de9cd9a | 104 | tree gfor_fndecl_runtime_error; |
f96d606f | 105 | tree gfor_fndecl_runtime_error_at; |
0d52899f | 106 | tree gfor_fndecl_runtime_warning_at; |
1529b8d9 | 107 | tree gfor_fndecl_os_error; |
f96d606f | 108 | tree gfor_fndecl_generate_error; |
092231a8 | 109 | tree gfor_fndecl_set_args; |
944b8b35 | 110 | tree gfor_fndecl_set_fpe; |
68d2e027 | 111 | tree gfor_fndecl_set_options; |
eaa90d25 | 112 | tree gfor_fndecl_set_convert; |
d67ab5ee | 113 | tree gfor_fndecl_set_record_marker; |
07b3bbf2 | 114 | tree gfor_fndecl_set_max_subrecord_length; |
35059811 FXC |
115 | tree gfor_fndecl_ctime; |
116 | tree gfor_fndecl_fdate; | |
25fc05eb | 117 | tree gfor_fndecl_ttynam; |
6de9cd9a DN |
118 | tree gfor_fndecl_in_pack; |
119 | tree gfor_fndecl_in_unpack; | |
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 DN |
125 | |
126 | ||
60386f50 TB |
127 | /* Coarray run-time library function decls. */ |
128 | tree gfor_fndecl_caf_init; | |
129 | tree gfor_fndecl_caf_finalize; | |
a8a5f4a9 TB |
130 | tree gfor_fndecl_caf_this_image; |
131 | tree gfor_fndecl_caf_num_images; | |
b8ff4e88 | 132 | tree gfor_fndecl_caf_register; |
5d81ddd0 | 133 | tree gfor_fndecl_caf_deregister; |
b5116268 TB |
134 | tree gfor_fndecl_caf_get; |
135 | tree gfor_fndecl_caf_send; | |
136 | tree gfor_fndecl_caf_sendget; | |
3c9f5092 AV |
137 | tree gfor_fndecl_caf_get_by_ref; |
138 | tree gfor_fndecl_caf_send_by_ref; | |
139 | tree gfor_fndecl_caf_sendget_by_ref; | |
60386f50 | 140 | tree gfor_fndecl_caf_sync_all; |
9315dff0 | 141 | tree gfor_fndecl_caf_sync_memory; |
60386f50 | 142 | tree gfor_fndecl_caf_sync_images; |
0daa7ed9 AF |
143 | tree gfor_fndecl_caf_stop_str; |
144 | tree gfor_fndecl_caf_stop_numeric; | |
60386f50 TB |
145 | tree gfor_fndecl_caf_error_stop; |
146 | tree gfor_fndecl_caf_error_stop_str; | |
42a8246d TB |
147 | tree gfor_fndecl_caf_atomic_def; |
148 | tree gfor_fndecl_caf_atomic_ref; | |
149 | tree gfor_fndecl_caf_atomic_cas; | |
150 | tree gfor_fndecl_caf_atomic_op; | |
bc0229f9 TB |
151 | tree gfor_fndecl_caf_lock; |
152 | tree gfor_fndecl_caf_unlock; | |
5df445a2 TB |
153 | tree gfor_fndecl_caf_event_post; |
154 | tree gfor_fndecl_caf_event_wait; | |
155 | tree gfor_fndecl_caf_event_query; | |
ef78bc3c AV |
156 | tree gfor_fndecl_caf_fail_image; |
157 | tree gfor_fndecl_caf_failed_images; | |
158 | tree gfor_fndecl_caf_image_status; | |
159 | tree gfor_fndecl_caf_stopped_images; | |
f8862a1b DR |
160 | tree gfor_fndecl_caf_form_team; |
161 | tree gfor_fndecl_caf_change_team; | |
162 | tree gfor_fndecl_caf_end_team; | |
163 | tree gfor_fndecl_caf_sync_team; | |
164 | tree gfor_fndecl_caf_get_team; | |
165 | tree gfor_fndecl_caf_team_number; | |
a16ee379 | 166 | tree gfor_fndecl_co_broadcast; |
d62cf3df TB |
167 | tree gfor_fndecl_co_max; |
168 | tree gfor_fndecl_co_min; | |
229c5919 | 169 | tree gfor_fndecl_co_reduce; |
d62cf3df | 170 | tree gfor_fndecl_co_sum; |
ba85c8c3 | 171 | tree gfor_fndecl_caf_is_present; |
60386f50 | 172 | |
60386f50 | 173 | |
6de9cd9a DN |
174 | /* Math functions. Many other math functions are handled in |
175 | trans-intrinsic.c. */ | |
176 | ||
644cb69f | 177 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
6de9cd9a DN |
178 | tree gfor_fndecl_math_ishftc4; |
179 | tree gfor_fndecl_math_ishftc8; | |
644cb69f | 180 | tree gfor_fndecl_math_ishftc16; |
6de9cd9a DN |
181 | |
182 | ||
183 | /* String functions. */ | |
184 | ||
6de9cd9a DN |
185 | tree gfor_fndecl_compare_string; |
186 | tree gfor_fndecl_concat_string; | |
187 | tree gfor_fndecl_string_len_trim; | |
188 | tree gfor_fndecl_string_index; | |
189 | tree gfor_fndecl_string_scan; | |
190 | tree gfor_fndecl_string_verify; | |
191 | tree gfor_fndecl_string_trim; | |
2263c775 | 192 | tree gfor_fndecl_string_minmax; |
6de9cd9a DN |
193 | tree gfor_fndecl_adjustl; |
194 | tree gfor_fndecl_adjustr; | |
d393bbd7 | 195 | tree gfor_fndecl_select_string; |
374929b2 FXC |
196 | tree gfor_fndecl_compare_string_char4; |
197 | tree gfor_fndecl_concat_string_char4; | |
198 | tree gfor_fndecl_string_len_trim_char4; | |
199 | tree gfor_fndecl_string_index_char4; | |
200 | tree gfor_fndecl_string_scan_char4; | |
201 | tree gfor_fndecl_string_verify_char4; | |
202 | tree gfor_fndecl_string_trim_char4; | |
203 | tree gfor_fndecl_string_minmax_char4; | |
204 | tree gfor_fndecl_adjustl_char4; | |
205 | tree gfor_fndecl_adjustr_char4; | |
d393bbd7 FXC |
206 | tree gfor_fndecl_select_string_char4; |
207 | ||
208 | ||
209 | /* Conversion between character kinds. */ | |
210 | tree gfor_fndecl_convert_char1_to_char4; | |
211 | tree gfor_fndecl_convert_char4_to_char1; | |
6de9cd9a DN |
212 | |
213 | ||
214 | /* Other misc. runtime library functions. */ | |
6de9cd9a DN |
215 | tree gfor_fndecl_size0; |
216 | tree gfor_fndecl_size1; | |
b41b2534 | 217 | tree gfor_fndecl_iargc; |
6de9cd9a | 218 | |
a39fafac FXC |
219 | /* Intrinsic functions implemented in Fortran. */ |
220 | tree gfor_fndecl_sc_kind; | |
6de9cd9a DN |
221 | tree gfor_fndecl_si_kind; |
222 | tree gfor_fndecl_sr_kind; | |
223 | ||
5a0aad31 FXC |
224 | /* BLAS gemm functions. */ |
225 | tree gfor_fndecl_sgemm; | |
226 | tree gfor_fndecl_dgemm; | |
227 | tree gfor_fndecl_cgemm; | |
228 | tree gfor_fndecl_zgemm; | |
229 | ||
6de9cd9a DN |
230 | |
231 | static void | |
232 | gfc_add_decl_to_parent_function (tree decl) | |
233 | { | |
6e45f57b | 234 | gcc_assert (decl); |
6de9cd9a DN |
235 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
236 | DECL_NONLOCAL (decl) = 1; | |
910ad8de | 237 | DECL_CHAIN (decl) = saved_parent_function_decls; |
6de9cd9a DN |
238 | saved_parent_function_decls = decl; |
239 | } | |
240 | ||
241 | void | |
242 | gfc_add_decl_to_function (tree decl) | |
243 | { | |
6e45f57b | 244 | gcc_assert (decl); |
6de9cd9a DN |
245 | TREE_USED (decl) = 1; |
246 | DECL_CONTEXT (decl) = current_function_decl; | |
910ad8de | 247 | DECL_CHAIN (decl) = saved_function_decls; |
6de9cd9a DN |
248 | saved_function_decls = decl; |
249 | } | |
250 | ||
9abe5e56 DK |
251 | static void |
252 | add_decl_as_local (tree decl) | |
253 | { | |
254 | gcc_assert (decl); | |
255 | TREE_USED (decl) = 1; | |
256 | DECL_CONTEXT (decl) = current_function_decl; | |
910ad8de | 257 | DECL_CHAIN (decl) = saved_local_decls; |
9abe5e56 DK |
258 | saved_local_decls = decl; |
259 | } | |
260 | ||
6de9cd9a | 261 | |
c006df4e SB |
262 | /* Build a backend label declaration. Set TREE_USED for named labels. |
263 | The context of the label is always the current_function_decl. All | |
264 | labels are marked artificial. */ | |
6de9cd9a DN |
265 | |
266 | tree | |
267 | gfc_build_label_decl (tree label_id) | |
268 | { | |
269 | /* 2^32 temporaries should be enough. */ | |
270 | static unsigned int tmp_num = 1; | |
271 | tree label_decl; | |
272 | char *label_name; | |
273 | ||
274 | if (label_id == NULL_TREE) | |
275 | { | |
276 | /* Build an internal label name. */ | |
277 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
278 | label_id = get_identifier (label_name); | |
279 | } | |
280 | else | |
281 | label_name = NULL; | |
282 | ||
283 | /* Build the LABEL_DECL node. Labels have no type. */ | |
c2255bc4 AH |
284 | label_decl = build_decl (input_location, |
285 | LABEL_DECL, label_id, void_type_node); | |
6de9cd9a | 286 | DECL_CONTEXT (label_decl) = current_function_decl; |
899ca90e | 287 | SET_DECL_MODE (label_decl, VOIDmode); |
6de9cd9a | 288 | |
c006df4e SB |
289 | /* We always define the label as used, even if the original source |
290 | file never references the label. We don't want all kinds of | |
291 | spurious warnings for old-style Fortran code with too many | |
292 | labels. */ | |
293 | TREE_USED (label_decl) = 1; | |
6de9cd9a | 294 | |
c006df4e | 295 | DECL_ARTIFICIAL (label_decl) = 1; |
6de9cd9a DN |
296 | return label_decl; |
297 | } | |
298 | ||
299 | ||
c8cc8542 PB |
300 | /* Set the backend source location of a decl. */ |
301 | ||
302 | void | |
303 | gfc_set_decl_location (tree decl, locus * loc) | |
304 | { | |
c8cc8542 | 305 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
c8cc8542 PB |
306 | } |
307 | ||
308 | ||
6de9cd9a DN |
309 | /* Return the backend label declaration for a given label structure, |
310 | or create it if it doesn't exist yet. */ | |
311 | ||
312 | tree | |
313 | gfc_get_label_decl (gfc_st_label * lp) | |
314 | { | |
6de9cd9a DN |
315 | if (lp->backend_decl) |
316 | return lp->backend_decl; | |
317 | else | |
318 | { | |
319 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
320 | tree label_decl; | |
321 | ||
322 | /* Validate the label declaration from the front end. */ | |
6e45f57b | 323 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
6de9cd9a DN |
324 | |
325 | /* Build a mangled name for the label. */ | |
326 | sprintf (label_name, "__label_%.6d", lp->value); | |
327 | ||
328 | /* Build the LABEL_DECL node. */ | |
329 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
330 | ||
331 | /* Tell the debugger where the label came from. */ | |
f8d0aee5 | 332 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
c8cc8542 | 333 | gfc_set_decl_location (label_decl, &lp->where); |
6de9cd9a DN |
334 | else |
335 | DECL_ARTIFICIAL (label_decl) = 1; | |
336 | ||
337 | /* Store the label in the label list and return the LABEL_DECL. */ | |
338 | lp->backend_decl = label_decl; | |
339 | return label_decl; | |
340 | } | |
341 | } | |
342 | ||
343 | ||
344 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
345 | ||
346 | static tree | |
347 | gfc_sym_identifier (gfc_symbol * sym) | |
348 | { | |
a7ad6c2d TB |
349 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
350 | return (get_identifier ("MAIN__")); | |
351 | else | |
352 | return (get_identifier (sym->name)); | |
6de9cd9a DN |
353 | } |
354 | ||
355 | ||
356 | /* Construct mangled name from symbol name. */ | |
357 | ||
358 | static tree | |
359 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
360 | { | |
361 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
362 | ||
a8b3b0b6 CR |
363 | /* Prevent the mangling of identifiers that have an assigned |
364 | binding label (mainly those that are bind(c)). */ | |
62603fae JB |
365 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
366 | return get_identifier (sym->binding_label); | |
8b704316 | 367 | |
345bd7eb PT |
368 | if (!sym->fn_result_spec) |
369 | { | |
370 | if (sym->module == NULL) | |
371 | return gfc_sym_identifier (sym); | |
372 | else | |
373 | { | |
374 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); | |
375 | return get_identifier (name); | |
376 | } | |
377 | } | |
6de9cd9a DN |
378 | else |
379 | { | |
345bd7eb PT |
380 | /* This is an entity that is actually local to a module procedure |
381 | that appears in the result specification expression. Since | |
382 | sym->module will be a zero length string, we use ns->proc_name | |
383 | instead. */ | |
384 | if (sym->ns->proc_name && sym->ns->proc_name->module) | |
385 | { | |
386 | snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s", | |
387 | sym->ns->proc_name->module, | |
388 | sym->ns->proc_name->name, | |
389 | sym->name); | |
390 | return get_identifier (name); | |
391 | } | |
392 | else | |
393 | { | |
394 | snprintf (name, sizeof name, "__%s_PROC_%s", | |
395 | sym->ns->proc_name->name, sym->name); | |
396 | return get_identifier (name); | |
397 | } | |
6de9cd9a DN |
398 | } |
399 | } | |
400 | ||
401 | ||
402 | /* Construct mangled function name from symbol name. */ | |
403 | ||
404 | static tree | |
405 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
406 | { | |
407 | int has_underscore; | |
408 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
409 | ||
a8b3b0b6 CR |
410 | /* It may be possible to simply use the binding label if it's |
411 | provided, and remove the other checks. Then we could use it | |
412 | for other things if we wished. */ | |
413 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
62603fae | 414 | sym->binding_label) |
a8b3b0b6 CR |
415 | /* use the binding label rather than the mangled name */ |
416 | return get_identifier (sym->binding_label); | |
417 | ||
4668d6f9 | 418 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
c89686a8 PT |
419 | || (sym->module != NULL && (sym->attr.external |
420 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4668d6f9 | 421 | && !sym->attr.module_procedure) |
6de9cd9a | 422 | { |
ecf24057 FXC |
423 | /* Main program is mangled into MAIN__. */ |
424 | if (sym->attr.is_main_program) | |
425 | return get_identifier ("MAIN__"); | |
426 | ||
427 | /* Intrinsic procedures are never mangled. */ | |
428 | if (sym->attr.proc == PROC_INTRINSIC) | |
6de9cd9a DN |
429 | return get_identifier (sym->name); |
430 | ||
c61819ff | 431 | if (flag_underscoring) |
6de9cd9a DN |
432 | { |
433 | has_underscore = strchr (sym->name, '_') != 0; | |
203c7ebf | 434 | if (flag_second_underscore && has_underscore) |
6de9cd9a DN |
435 | snprintf (name, sizeof name, "%s__", sym->name); |
436 | else | |
437 | snprintf (name, sizeof name, "%s_", sym->name); | |
438 | return get_identifier (name); | |
439 | } | |
440 | else | |
441 | return get_identifier (sym->name); | |
442 | } | |
443 | else | |
444 | { | |
9998ef84 | 445 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
6de9cd9a DN |
446 | return get_identifier (name); |
447 | } | |
448 | } | |
449 | ||
450 | ||
43ce5e52 FXC |
451 | void |
452 | gfc_set_decl_assembler_name (tree decl, tree name) | |
453 | { | |
454 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
455 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
456 | } | |
457 | ||
458 | ||
bae88af6 TS |
459 | /* Returns true if a variable of specified size should go on the stack. */ |
460 | ||
461 | int | |
462 | gfc_can_put_var_on_stack (tree size) | |
463 | { | |
464 | unsigned HOST_WIDE_INT low; | |
465 | ||
466 | if (!INTEGER_CST_P (size)) | |
467 | return 0; | |
468 | ||
203c7ebf | 469 | if (flag_max_stack_var_size < 0) |
bae88af6 TS |
470 | return 1; |
471 | ||
807e902e | 472 | if (!tree_fits_uhwi_p (size)) |
bae88af6 TS |
473 | return 0; |
474 | ||
475 | low = TREE_INT_CST_LOW (size); | |
203c7ebf | 476 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
bae88af6 TS |
477 | return 0; |
478 | ||
479 | /* TODO: Set a per-function stack size limit. */ | |
480 | ||
481 | return 1; | |
482 | } | |
483 | ||
484 | ||
b122dc6a JJ |
485 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
486 | an expression involving its corresponding pointer. There are | |
487 | 2 cases; one for variable size arrays, and one for everything else, | |
488 | because variable-sized arrays require one fewer level of | |
489 | indirection. */ | |
490 | ||
491 | static void | |
492 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
493 | { | |
494 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
495 | tree value; | |
496 | ||
497 | /* Parameters need to be dereferenced. */ | |
8b704316 | 498 | if (sym->cp_pointer->attr.dummy) |
db3927fb AH |
499 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
500 | ptr_decl); | |
b122dc6a JJ |
501 | |
502 | /* Check to see if we're dealing with a variable-sized array. */ | |
503 | if (sym->attr.dimension | |
8b704316 PT |
504 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
505 | { | |
831d7813 | 506 | /* These decls will be dereferenced later, so we don't dereference |
b122dc6a JJ |
507 | them here. */ |
508 | value = convert (TREE_TYPE (decl), ptr_decl); | |
509 | } | |
510 | else | |
511 | { | |
512 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
513 | ptr_decl); | |
db3927fb AH |
514 | value = build_fold_indirect_ref_loc (input_location, |
515 | ptr_decl); | |
b122dc6a JJ |
516 | } |
517 | ||
518 | SET_DECL_VALUE_EXPR (decl, value); | |
519 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
6c7a4dfd | 520 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b122dc6a JJ |
521 | } |
522 | ||
523 | ||
faf28b3a | 524 | /* Finish processing of a declaration without an initial value. */ |
6de9cd9a DN |
525 | |
526 | static void | |
faf28b3a | 527 | gfc_finish_decl (tree decl) |
6de9cd9a | 528 | { |
faf28b3a TS |
529 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
530 | || DECL_INITIAL (decl) == NULL_TREE); | |
6de9cd9a | 531 | |
d168c883 | 532 | if (!VAR_P (decl)) |
faf28b3a | 533 | return; |
6de9cd9a | 534 | |
faf28b3a TS |
535 | if (DECL_SIZE (decl) == NULL_TREE |
536 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
537 | layout_decl (decl, 0); | |
538 | ||
539 | /* A few consistency checks. */ | |
540 | /* A static variable with an incomplete type is an error if it is | |
541 | initialized. Also if it is not file scope. Otherwise, let it | |
542 | through, but if it is not `extern' then it may cause an error | |
543 | message later. */ | |
544 | /* An automatic variable with an incomplete type is an error. */ | |
545 | ||
546 | /* We should know the storage size. */ | |
547 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
8b704316 | 548 | || (TREE_STATIC (decl) |
faf28b3a TS |
549 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
550 | : DECL_EXTERNAL (decl))); | |
551 | ||
552 | /* The storage size should be constant. */ | |
553 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
554 | || !DECL_SIZE (decl) | |
555 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
6de9cd9a DN |
556 | } |
557 | ||
558 | ||
92d28cbb JJ |
559 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
560 | ||
561 | void | |
562 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
563 | { | |
564 | if (!attr->dimension && !attr->codimension) | |
565 | { | |
566 | /* Handle scalar allocatable variables. */ | |
567 | if (attr->allocatable) | |
568 | { | |
569 | gfc_allocate_lang_decl (decl); | |
570 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
571 | } | |
572 | /* Handle scalar pointer variables. */ | |
573 | if (attr->pointer) | |
574 | { | |
575 | gfc_allocate_lang_decl (decl); | |
576 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
577 | } | |
578 | } | |
579 | } | |
580 | ||
581 | ||
6de9cd9a DN |
582 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
583 | ||
584 | static void | |
585 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
586 | { | |
7b901ac4 | 587 | tree new_type; |
83d890b9 | 588 | |
b122dc6a | 589 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
83d890b9 | 590 | if (sym->attr.cray_pointee) |
b122dc6a | 591 | gfc_finish_cray_pointee (decl, sym); |
83d890b9 | 592 | |
63a1dd10 AV |
593 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
594 | This is the equivalent of the TARGET variables. | |
595 | We also need to set this if the variable is passed by reference in a | |
596 | CALL statement. */ | |
6de9cd9a DN |
597 | if (sym->attr.target) |
598 | TREE_ADDRESSABLE (decl) = 1; | |
63a1dd10 | 599 | |
6de9cd9a DN |
600 | /* If it wasn't used we wouldn't be getting it. */ |
601 | TREE_USED (decl) = 1; | |
602 | ||
1e4b1376 TB |
603 | if (sym->attr.flavor == FL_PARAMETER |
604 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
605 | TREE_READONLY (decl) = 1; | |
606 | ||
6de9cd9a DN |
607 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
608 | because this would add them to the current scope rather than the | |
609 | function scope. */ | |
610 | if (current_function_decl != NULL_TREE) | |
611 | { | |
d48734ef | 612 | if (sym->ns->proc_name->backend_decl == current_function_decl |
9abe5e56 | 613 | || sym->result == sym) |
6de9cd9a | 614 | gfc_add_decl_to_function (decl); |
9abe5e56 DK |
615 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
616 | /* This is a BLOCK construct. */ | |
617 | add_decl_as_local (decl); | |
6de9cd9a DN |
618 | else |
619 | gfc_add_decl_to_parent_function (decl); | |
620 | } | |
621 | ||
b122dc6a JJ |
622 | if (sym->attr.cray_pointee) |
623 | return; | |
624 | ||
5af6fa0b | 625 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
a8b3b0b6 CR |
626 | { |
627 | /* We need to put variables that are bind(c) into the common | |
628 | segment of the object file, because this is what C would do. | |
629 | gfortran would typically put them in either the BSS or | |
630 | initialized data segments, and only mark them as common if | |
631 | they were part of common blocks. However, if they are not put | |
93c71688 | 632 | into common space, then C cannot initialize global Fortran |
a8b3b0b6 CR |
633 | variables that it interoperates with and the draft says that |
634 | either Fortran or C should be able to initialize it (but not | |
635 | both, of course.) (J3/04-007, section 15.3). */ | |
636 | TREE_PUBLIC(decl) = 1; | |
637 | DECL_COMMON(decl) = 1; | |
a56ea54a PT |
638 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
639 | { | |
640 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
641 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
642 | } | |
a8b3b0b6 | 643 | } |
8b704316 | 644 | |
6de9cd9a | 645 | /* If a variable is USE associated, it's always external. */ |
4668d6f9 | 646 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
6de9cd9a DN |
647 | { |
648 | DECL_EXTERNAL (decl) = 1; | |
649 | TREE_PUBLIC (decl) = 1; | |
650 | } | |
345bd7eb PT |
651 | else if (sym->fn_result_spec && !sym->ns->proc_name->module) |
652 | { | |
653 | ||
654 | if (sym->ns->proc_name->attr.if_source != IFSRC_DECL) | |
655 | DECL_EXTERNAL (decl) = 1; | |
656 | else | |
657 | TREE_STATIC (decl) = 1; | |
658 | ||
659 | TREE_PUBLIC (decl) = 1; | |
660 | } | |
cb9e4f55 | 661 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
6de9cd9a | 662 | { |
adf3ed3f | 663 | /* TODO: Don't set sym->module for result or dummy variables. */ |
d48734ef | 664 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
58341a42 | 665 | |
a56ea54a | 666 | TREE_PUBLIC (decl) = 1; |
6de9cd9a | 667 | TREE_STATIC (decl) = 1; |
a56ea54a PT |
668 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
669 | { | |
670 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
671 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
672 | } | |
6de9cd9a DN |
673 | } |
674 | ||
b7b184a8 PT |
675 | /* Derived types are a bit peculiar because of the possibility of |
676 | a default initializer; this must be applied each time the variable | |
677 | comes into scope it therefore need not be static. These variables | |
678 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
df2fba9e | 679 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
b7b184a8 PT |
680 | SAVE_EXPLICIT. */ |
681 | if (!sym->attr.use_assoc | |
682 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
b8ff4e88 | 683 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
f19626cf | 684 | || (flag_coarray == GFC_FCOARRAY_LIB |
b8ff4e88 | 685 | && sym->attr.codimension && !sym->attr.allocatable))) |
6de9cd9a | 686 | TREE_STATIC (decl) = 1; |
775e6c3a | 687 | |
e73d3ca6 PT |
688 | /* If derived-type variables with DTIO procedures are not made static |
689 | some bits of code referencing them get optimized away. | |
690 | TODO Understand why this is so and fix it. */ | |
691 | if (!sym->attr.use_assoc | |
692 | && ((sym->ts.type == BT_DERIVED | |
693 | && sym->ts.u.derived->attr.has_dtio_procs) | |
694 | || (sym->ts.type == BT_CLASS | |
695 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
696 | TREE_STATIC (decl) = 1; | |
697 | ||
775e6c3a TB |
698 | if (sym->attr.volatile_) |
699 | { | |
775e6c3a | 700 | TREE_THIS_VOLATILE (decl) = 1; |
c28d1d9b | 701 | TREE_SIDE_EFFECTS (decl) = 1; |
7b901ac4 KG |
702 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
703 | TREE_TYPE (decl) = new_type; | |
8b704316 | 704 | } |
775e6c3a | 705 | |
6de9cd9a | 706 | /* Keep variables larger than max-stack-var-size off stack. */ |
34d567d1 | 707 | if (!sym->ns->proc_name->attr.recursive && !sym->attr.automatic |
6de9cd9a | 708 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
9eccb94d JJ |
709 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
710 | /* Put variable length auto array pointers always into stack. */ | |
711 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
712 | || sym->attr.dimension == 0 | |
713 | || sym->as->type != AS_EXPLICIT | |
714 | || sym->attr.pointer | |
715 | || sym->attr.allocatable) | |
716 | && !DECL_ARTIFICIAL (decl)) | |
43068916 FR |
717 | { |
718 | TREE_STATIC (decl) = 1; | |
719 | ||
720 | /* Because the size of this variable isn't known until now, we may have | |
721 | greedily added an initializer to this variable (in build_init_assign) | |
722 | even though the max-stack-var-size indicates the variable should be | |
723 | static. Therefore we rip out the automatic initializer here and | |
724 | replace it with a static one. */ | |
725 | gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); | |
726 | gfc_code *prev = NULL; | |
727 | gfc_code *code = sym->ns->code; | |
728 | while (code && code->op == EXEC_INIT_ASSIGN) | |
729 | { | |
730 | /* Look for an initializer meant for this symbol. */ | |
731 | if (code->expr1->symtree == st) | |
732 | { | |
733 | if (prev) | |
734 | prev->next = code->next; | |
735 | else | |
736 | sym->ns->code = code->next; | |
737 | ||
738 | break; | |
739 | } | |
740 | ||
741 | prev = code; | |
742 | code = code->next; | |
743 | } | |
744 | if (code && code->op == EXEC_INIT_ASSIGN) | |
745 | { | |
746 | /* Keep the init expression for a static initializer. */ | |
747 | sym->value = code->expr2; | |
748 | /* Cleanup the defunct code object, without freeing the init expr. */ | |
749 | code->expr2 = NULL; | |
750 | gfc_free_statement (code); | |
751 | free (code); | |
752 | } | |
753 | } | |
6c7a4dfd JJ |
754 | |
755 | /* Handle threadprivate variables. */ | |
8893239d | 756 | if (sym->attr.threadprivate |
6c7a4dfd | 757 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
56363ffd | 758 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
92d28cbb JJ |
759 | |
760 | gfc_finish_decl_attrs (decl, &sym->attr); | |
6de9cd9a DN |
761 | } |
762 | ||
763 | ||
764 | /* Allocate the lang-specific part of a decl. */ | |
765 | ||
766 | void | |
767 | gfc_allocate_lang_decl (tree decl) | |
768 | { | |
92d28cbb JJ |
769 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
770 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
6de9cd9a DN |
771 | } |
772 | ||
773 | /* Remember a symbol to generate initialization/cleanup code at function | |
774 | entry/exit. */ | |
775 | ||
776 | static void | |
777 | gfc_defer_symbol_init (gfc_symbol * sym) | |
778 | { | |
779 | gfc_symbol *p; | |
780 | gfc_symbol *last; | |
781 | gfc_symbol *head; | |
782 | ||
783 | /* Don't add a symbol twice. */ | |
784 | if (sym->tlink) | |
785 | return; | |
786 | ||
787 | last = head = sym->ns->proc_name; | |
788 | p = last->tlink; | |
789 | ||
790 | /* Make sure that setup code for dummy variables which are used in the | |
791 | setup of other variables is generated first. */ | |
792 | if (sym->attr.dummy) | |
793 | { | |
794 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
795 | This is a circular list, so don't go past the head. */ | |
796 | while (p != head | |
797 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
798 | { | |
799 | last = p; | |
800 | p = p->tlink; | |
801 | } | |
802 | } | |
803 | /* Insert in between last and p. */ | |
804 | last->tlink = sym; | |
805 | sym->tlink = p; | |
806 | } | |
807 | ||
808 | ||
0101807c PT |
809 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
810 | backend_decl for a module symbol, if it all ready exists. If the | |
811 | module gsymbol does not exist, it is created. If the symbol does | |
812 | not exist, it is added to the gsymbol namespace. Returns true if | |
813 | an existing backend_decl is found. */ | |
814 | ||
815 | bool | |
816 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
817 | { | |
818 | gfc_gsymbol *gsym; | |
819 | gfc_symbol *s; | |
820 | gfc_symtree *st; | |
821 | ||
822 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
823 | ||
824 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
825 | { | |
826 | st = NULL; | |
827 | s = NULL; | |
828 | ||
f6288c24 | 829 | /* Check for a symbol with the same name. */ |
0101807c PT |
830 | if (gsym) |
831 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
832 | ||
833 | if (!s) | |
834 | { | |
835 | if (!gsym) | |
836 | { | |
837 | gsym = gfc_get_gsymbol (sym->module); | |
838 | gsym->type = GSYM_MODULE; | |
839 | gsym->ns = gfc_get_namespace (NULL, 0); | |
840 | } | |
841 | ||
842 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
843 | st->n.sym = sym; | |
844 | sym->refs++; | |
845 | } | |
f6288c24 | 846 | else if (gfc_fl_struct (sym->attr.flavor)) |
0101807c | 847 | { |
c3f34952 TB |
848 | if (s && s->attr.flavor == FL_PROCEDURE) |
849 | { | |
850 | gfc_interface *intr; | |
851 | gcc_assert (s->attr.generic); | |
852 | for (intr = s->generic; intr; intr = intr->next) | |
f6288c24 | 853 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c3f34952 TB |
854 | { |
855 | s = intr->sym; | |
856 | break; | |
857 | } | |
858 | } | |
859 | ||
f6288c24 FR |
860 | /* Normally we can assume that s is a derived-type symbol since it |
861 | shares a name with the derived-type sym. However if sym is a | |
862 | STRUCTURE, it may in fact share a name with any other basic type | |
863 | variable. If s is in fact of derived type then we can continue | |
864 | looking for a duplicate type declaration. */ | |
865 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
866 | { | |
867 | s = s->ts.u.derived; | |
868 | } | |
869 | ||
870 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
871 | { | |
872 | if (s->attr.flavor == FL_UNION) | |
873 | s->backend_decl = gfc_get_union_type (s); | |
874 | else | |
875 | s->backend_decl = gfc_get_derived_type (s); | |
876 | } | |
0101807c PT |
877 | gfc_copy_dt_decls_ifequal (s, sym, true); |
878 | return true; | |
879 | } | |
880 | else if (s->backend_decl) | |
881 | { | |
f29bda83 | 882 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
0101807c PT |
883 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
884 | true); | |
885 | else if (sym->ts.type == BT_CHARACTER) | |
886 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
887 | sym->backend_decl = s->backend_decl; | |
888 | return true; | |
889 | } | |
890 | } | |
891 | return false; | |
892 | } | |
893 | ||
894 | ||
6de9cd9a DN |
895 | /* Create an array index type variable with function scope. */ |
896 | ||
897 | static tree | |
898 | create_index_var (const char * pfx, int nest) | |
899 | { | |
900 | tree decl; | |
901 | ||
902 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
903 | if (nest) | |
904 | gfc_add_decl_to_parent_function (decl); | |
905 | else | |
906 | gfc_add_decl_to_function (decl); | |
907 | return decl; | |
908 | } | |
909 | ||
910 | ||
911 | /* Create variables to hold all the non-constant bits of info for a | |
912 | descriptorless array. Remember these in the lang-specific part of the | |
913 | type. */ | |
914 | ||
915 | static void | |
916 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
917 | { | |
918 | tree type; | |
919 | int dim; | |
920 | int nest; | |
52bf62f9 | 921 | gfc_namespace* procns; |
f3b0bb7a AV |
922 | symbol_attribute *array_attr; |
923 | gfc_array_spec *as; | |
924 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
6de9cd9a DN |
925 | |
926 | type = TREE_TYPE (decl); | |
f3b0bb7a AV |
927 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
928 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
6de9cd9a DN |
929 | |
930 | /* We just use the descriptor, if there is one. */ | |
931 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
932 | return; | |
933 | ||
6e45f57b | 934 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
52bf62f9 DK |
935 | procns = gfc_find_proc_namespace (sym->ns); |
936 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
6de9cd9a DN |
937 | && !sym->attr.contained; |
938 | ||
f3b0bb7a AV |
939 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
940 | && as->type != AS_ASSUMED_SHAPE | |
b8ff4e88 TB |
941 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
942 | { | |
943 | tree token; | |
213ab0a6 TB |
944 | tree token_type = build_qualified_type (pvoid_type_node, |
945 | TYPE_QUAL_RESTRICT); | |
946 | ||
947 | if (sym->module && (sym->attr.use_assoc | |
948 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
949 | { | |
950 | tree token_name | |
951 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
952 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
953 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
954 | token_type); | |
de1184c0 TB |
955 | if (sym->attr.use_assoc) |
956 | DECL_EXTERNAL (token) = 1; | |
957 | else | |
958 | TREE_STATIC (token) = 1; | |
959 | ||
a56ea54a PT |
960 | TREE_PUBLIC (token) = 1; |
961 | ||
962 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
963 | { | |
964 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
965 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
966 | } | |
213ab0a6 TB |
967 | } |
968 | else | |
de1184c0 TB |
969 | { |
970 | token = gfc_create_var_np (token_type, "caf_token"); | |
971 | TREE_STATIC (token) = 1; | |
972 | } | |
b8ff4e88 | 973 | |
b8ff4e88 TB |
974 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
975 | DECL_ARTIFICIAL (token) = 1; | |
de1184c0 TB |
976 | DECL_NONALIASED (token) = 1; |
977 | ||
978 | if (sym->module && !sym->attr.use_assoc) | |
979 | { | |
980 | pushdecl (token); | |
981 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
982 | gfc_module_add_decl (cur_module, token); | |
983 | } | |
118d5ed3 AV |
984 | else if (sym->attr.host_assoc |
985 | && TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
986 | != TRANSLATION_UNIT_DECL) | |
3083fc56 | 987 | gfc_add_decl_to_parent_function (token); |
de1184c0 TB |
988 | else |
989 | gfc_add_decl_to_function (token); | |
b8ff4e88 TB |
990 | } |
991 | ||
6de9cd9a DN |
992 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
993 | { | |
994 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
01306727 FXC |
995 | { |
996 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
997 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
998 | } | |
aa9c57ec | 999 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
6de9cd9a | 1000 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
f3b0bb7a AV |
1001 | && (as->type != AS_ASSUMED_SIZE |
1002 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
01306727 FXC |
1003 | { |
1004 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1005 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1006 | } | |
6de9cd9a DN |
1007 | |
1008 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
01306727 FXC |
1009 | { |
1010 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
1011 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
1012 | } | |
6de9cd9a | 1013 | } |
a3935ffc TB |
1014 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
1015 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
1016 | { | |
1017 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
1018 | { | |
1019 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1020 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1021 | } | |
1022 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
1023 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
1024 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
1025 | { | |
1026 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1027 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1028 | } | |
1029 | } | |
6de9cd9a DN |
1030 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
1031 | { | |
1032 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
1033 | "offset"); | |
01306727 FXC |
1034 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
1035 | ||
6de9cd9a DN |
1036 | if (nest) |
1037 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1038 | else | |
1039 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1040 | } | |
417ab240 JJ |
1041 | |
1042 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
f3b0bb7a | 1043 | && as->type != AS_ASSUMED_SIZE) |
01306727 FXC |
1044 | { |
1045 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
1046 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
1047 | } | |
417ab240 JJ |
1048 | |
1049 | if (POINTER_TYPE_P (type)) | |
1050 | { | |
1051 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
1052 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
1053 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
1054 | type = TREE_TYPE (type); | |
1055 | } | |
1056 | ||
1057 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
1058 | { | |
1059 | tree size, range; | |
1060 | ||
bc98ed60 TB |
1061 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1062 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
417ab240 JJ |
1063 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
1064 | size); | |
1065 | TYPE_DOMAIN (type) = range; | |
1066 | layout_type (type); | |
1067 | } | |
25c29c56 | 1068 | |
eb401400 | 1069 | if (TYPE_NAME (type) != NULL_TREE && as->rank > 0 |
f3b0bb7a | 1070 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
d168c883 | 1071 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
25c29c56 JJ |
1072 | { |
1073 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1074 | ||
f3b0bb7a | 1075 | for (dim = 0; dim < as->rank - 1; dim++) |
25c29c56 JJ |
1076 | { |
1077 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1078 | gtype = TREE_TYPE (gtype); | |
1079 | } | |
1080 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1081 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
1082 | TYPE_NAME (type) = NULL_TREE; | |
1083 | } | |
1084 | ||
1085 | if (TYPE_NAME (type) == NULL_TREE) | |
1086 | { | |
1087 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
1088 | ||
f3b0bb7a | 1089 | for (dim = as->rank - 1; dim >= 0; dim--) |
25c29c56 | 1090 | { |
fcd3c5a9 JJ |
1091 | tree lbound, ubound; |
1092 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
1093 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
1094 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
25c29c56 | 1095 | gtype = build_array_type (gtype, rtype); |
e429bb49 JJ |
1096 | /* Ensure the bound variables aren't optimized out at -O0. |
1097 | For -O1 and above they often will be optimized out, but | |
cd3f04c8 JJ |
1098 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1099 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1100 | end up in debug info. */ | |
d168c883 JJ |
1101 | if (lbound |
1102 | && VAR_P (lbound) | |
1103 | && DECL_ARTIFICIAL (lbound) | |
1104 | && DECL_IGNORED_P (lbound)) | |
fcd3c5a9 JJ |
1105 | { |
1106 | if (DECL_NAME (lbound) | |
1107 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1108 | "lbound") != 0) | |
cd3f04c8 | 1109 | DECL_NAMELESS (lbound) = 1; |
fcd3c5a9 JJ |
1110 | DECL_IGNORED_P (lbound) = 0; |
1111 | } | |
d168c883 JJ |
1112 | if (ubound |
1113 | && VAR_P (ubound) | |
1114 | && DECL_ARTIFICIAL (ubound) | |
1115 | && DECL_IGNORED_P (ubound)) | |
fcd3c5a9 JJ |
1116 | { |
1117 | if (DECL_NAME (ubound) | |
1118 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1119 | "ubound") != 0) | |
cd3f04c8 | 1120 | DECL_NAMELESS (ubound) = 1; |
fcd3c5a9 JJ |
1121 | DECL_IGNORED_P (ubound) = 0; |
1122 | } | |
25c29c56 | 1123 | } |
c2255bc4 AH |
1124 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1125 | TYPE_DECL, NULL, gtype); | |
25c29c56 JJ |
1126 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1127 | } | |
6de9cd9a DN |
1128 | } |
1129 | ||
1130 | ||
1131 | /* For some dummy arguments we don't use the actual argument directly. | |
bae88af6 | 1132 | Instead we create a local decl and use that. This allows us to perform |
6de9cd9a DN |
1133 | initialization, and construct full type information. */ |
1134 | ||
1135 | static tree | |
1136 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1137 | { | |
1138 | tree decl; | |
1139 | tree type; | |
1140 | gfc_array_spec *as; | |
f3b0bb7a | 1141 | symbol_attribute *array_attr; |
6de9cd9a | 1142 | char *name; |
dcfef7d4 | 1143 | gfc_packed packed; |
6de9cd9a DN |
1144 | int n; |
1145 | bool known_size; | |
f3b0bb7a AV |
1146 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1147 | ||
1148 | /* Use the array as and attr. */ | |
1149 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1150 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1151 | ||
1152 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1153 | For class arrays the information if sym is an allocatable or pointer | |
1154 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1155 | too many reasons to be of use here). */ | |
1156 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1157 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1158 | || array_attr->allocatable | |
1159 | || (as && as->type == AS_ASSUMED_RANK)) | |
6de9cd9a DN |
1160 | return dummy; |
1161 | ||
f3b0bb7a AV |
1162 | /* Add to list of variables if not a fake result variable. |
1163 | These symbols are set on the symbol only, not on the class component. */ | |
6de9cd9a DN |
1164 | if (sym->attr.result || sym->attr.dummy) |
1165 | gfc_defer_symbol_init (sym); | |
1166 | ||
f3b0bb7a AV |
1167 | /* For a class array the array descriptor is in the _data component, while |
1168 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1169 | descriptor. */ | |
1170 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1171 | : TREE_TYPE (dummy)); | |
1172 | /* type now is the array descriptor w/o any indirection. */ | |
6e45f57b | 1173 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
f3b0bb7a | 1174 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
6de9cd9a | 1175 | |
f8d0aee5 | 1176 | /* Do we know the element size? */ |
6de9cd9a | 1177 | known_size = sym->ts.type != BT_CHARACTER |
bc21d315 | 1178 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
8b704316 | 1179 | |
f3b0bb7a | 1180 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
6de9cd9a DN |
1181 | { |
1182 | /* For descriptorless arrays with known element size the actual | |
1183 | argument is sufficient. */ | |
6de9cd9a DN |
1184 | gfc_build_qualified_array (dummy, sym); |
1185 | return dummy; | |
1186 | } | |
1187 | ||
6de9cd9a DN |
1188 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1189 | { | |
fa951694 | 1190 | /* Create a descriptorless array pointer. */ |
dcfef7d4 | 1191 | packed = PACKED_NO; |
1c3339af FXC |
1192 | |
1193 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1194 | are not repacked. */ | |
c61819ff | 1195 | if (!flag_repack_arrays || sym->attr.target) |
6de9cd9a DN |
1196 | { |
1197 | if (as->type == AS_ASSUMED_SIZE) | |
dcfef7d4 | 1198 | packed = PACKED_FULL; |
6de9cd9a DN |
1199 | } |
1200 | else | |
1201 | { | |
1202 | if (as->type == AS_EXPLICIT) | |
1203 | { | |
dcfef7d4 | 1204 | packed = PACKED_FULL; |
6de9cd9a DN |
1205 | for (n = 0; n < as->rank; n++) |
1206 | { | |
1207 | if (!(as->upper[n] | |
1208 | && as->lower[n] | |
1209 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1210 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
ae382ebd PCC |
1211 | { |
1212 | packed = PACKED_PARTIAL; | |
1213 | break; | |
1214 | } | |
6de9cd9a DN |
1215 | } |
1216 | } | |
1217 | else | |
dcfef7d4 | 1218 | packed = PACKED_PARTIAL; |
6de9cd9a DN |
1219 | } |
1220 | ||
f3b0bb7a AV |
1221 | /* For classarrays the element type is required, but |
1222 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1223 | type = is_classarray ? gfc_get_element_type (type) | |
1224 | : gfc_typenode_for_spec (&sym->ts); | |
1225 | type = gfc_get_nodesc_array_type (type, as, packed, | |
10174ddf | 1226 | !sym->attr.target); |
6de9cd9a DN |
1227 | } |
1228 | else | |
1229 | { | |
1230 | /* We now have an expression for the element size, so create a fully | |
1231 | qualified type. Reset sym->backend decl or this will just return the | |
1232 | old type. */ | |
3e978d30 | 1233 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
6de9cd9a DN |
1234 | sym->backend_decl = NULL_TREE; |
1235 | type = gfc_sym_type (sym); | |
dcfef7d4 | 1236 | packed = PACKED_FULL; |
6de9cd9a DN |
1237 | } |
1238 | ||
1239 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
c2255bc4 AH |
1240 | decl = build_decl (input_location, |
1241 | VAR_DECL, get_identifier (name), type); | |
6de9cd9a DN |
1242 | |
1243 | DECL_ARTIFICIAL (decl) = 1; | |
cd3f04c8 | 1244 | DECL_NAMELESS (decl) = 1; |
6de9cd9a DN |
1245 | TREE_PUBLIC (decl) = 0; |
1246 | TREE_STATIC (decl) = 0; | |
1247 | DECL_EXTERNAL (decl) = 0; | |
1248 | ||
879287d9 JJ |
1249 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1250 | if (sym->attr.optional) | |
1251 | TREE_NO_WARNING (decl) = 1; | |
1252 | ||
6de9cd9a DN |
1253 | /* We should never get deferred shape arrays here. We used to because of |
1254 | frontend bugs. */ | |
f3b0bb7a | 1255 | gcc_assert (as->type != AS_DEFERRED); |
6de9cd9a | 1256 | |
dcfef7d4 TS |
1257 | if (packed == PACKED_PARTIAL) |
1258 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1259 | else if (packed == PACKED_FULL) | |
1260 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
6de9cd9a DN |
1261 | |
1262 | gfc_build_qualified_array (decl, sym); | |
1263 | ||
1264 | if (DECL_LANG_SPECIFIC (dummy)) | |
1265 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1266 | else | |
1267 | gfc_allocate_lang_decl (decl); | |
1268 | ||
1269 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1270 | ||
1271 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1272 | || sym->attr.contained) | |
1273 | gfc_add_decl_to_function (decl); | |
1274 | else | |
1275 | gfc_add_decl_to_parent_function (decl); | |
1276 | ||
1277 | return decl; | |
1278 | } | |
1279 | ||
77f2a970 JJ |
1280 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1281 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1282 | pointing to the artificial variable for debug info purposes. */ | |
1283 | ||
1284 | static void | |
1285 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1286 | { | |
1287 | tree decl, dummy; | |
1288 | ||
1289 | if (! nonlocal_dummy_decl_pset) | |
6e2830c3 | 1290 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
77f2a970 | 1291 | |
6e2830c3 | 1292 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
77f2a970 JJ |
1293 | return; |
1294 | ||
1295 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
c2255bc4 | 1296 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
77f2a970 JJ |
1297 | TREE_TYPE (sym->backend_decl)); |
1298 | DECL_ARTIFICIAL (decl) = 0; | |
1299 | TREE_USED (decl) = 1; | |
1300 | TREE_PUBLIC (decl) = 0; | |
1301 | TREE_STATIC (decl) = 0; | |
1302 | DECL_EXTERNAL (decl) = 0; | |
1303 | if (DECL_BY_REFERENCE (dummy)) | |
1304 | DECL_BY_REFERENCE (decl) = 1; | |
1305 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1306 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1307 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1308 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
910ad8de | 1309 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
77f2a970 JJ |
1310 | nonlocal_dummy_decls = decl; |
1311 | } | |
6de9cd9a DN |
1312 | |
1313 | /* Return a constant or a variable to use as a string length. Does not | |
1314 | add the decl to the current scope. */ | |
1315 | ||
1316 | static tree | |
1317 | gfc_create_string_length (gfc_symbol * sym) | |
1318 | { | |
bc21d315 JW |
1319 | gcc_assert (sym->ts.u.cl); |
1320 | gfc_conv_const_charlen (sym->ts.u.cl); | |
cadb8f42 | 1321 | |
bc21d315 | 1322 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
6de9cd9a | 1323 | { |
cadb8f42 | 1324 | tree length; |
6052c299 | 1325 | const char *name; |
6de9cd9a | 1326 | |
26c08c03 TB |
1327 | /* The string length variable shall be in static memory if it is either |
1328 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1329 | relevant is "len=:" - otherwise, it is either a constant length or | |
1330 | it is an automatic variable. */ | |
36085529 TB |
1331 | bool static_length = sym->attr.save |
1332 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
203c7ebf | 1333 | || (flag_max_stack_var_size == 0 |
26c08c03 TB |
1334 | && sym->ts.deferred && !sym->attr.dummy |
1335 | && !sym->attr.result && !sym->attr.function); | |
36085529 TB |
1336 | |
1337 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1338 | variables as some systems do not support the "." in the assembler name. | |
1339 | For nonstatic variables, the "." does not appear in assembler. */ | |
1340 | if (static_length) | |
1341 | { | |
1342 | if (sym->module) | |
1343 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1344 | sym->name); | |
1345 | else | |
1346 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1347 | } | |
1348 | else if (sym->module) | |
6052c299 TB |
1349 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1350 | else | |
1351 | name = gfc_get_string (".%s", sym->name); | |
1352 | ||
c2255bc4 AH |
1353 | length = build_decl (input_location, |
1354 | VAR_DECL, get_identifier (name), | |
d7177ab2 | 1355 | gfc_charlen_type_node); |
6de9cd9a DN |
1356 | DECL_ARTIFICIAL (length) = 1; |
1357 | TREE_USED (length) = 1; | |
417ab240 JJ |
1358 | if (sym->ns->proc_name->tlink != NULL) |
1359 | gfc_defer_symbol_init (sym); | |
cadb8f42 | 1360 | |
bc21d315 | 1361 | sym->ts.u.cl->backend_decl = length; |
6052c299 | 1362 | |
36085529 | 1363 | if (static_length) |
6052c299 TB |
1364 | TREE_STATIC (length) = 1; |
1365 | ||
1366 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1367 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1368 | TREE_PUBLIC (length) = 1; | |
6de9cd9a DN |
1369 | } |
1370 | ||
bc21d315 JW |
1371 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1372 | return sym->ts.u.cl->backend_decl; | |
6de9cd9a DN |
1373 | } |
1374 | ||
910450c1 FW |
1375 | /* If a variable is assigned a label, we add another two auxiliary |
1376 | variables. */ | |
1377 | ||
1378 | static void | |
1379 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1380 | { | |
1381 | tree addr; | |
1382 | tree length; | |
1383 | tree decl; | |
1384 | ||
1385 | gcc_assert (sym->backend_decl); | |
1386 | ||
1387 | decl = sym->backend_decl; | |
1388 | gfc_allocate_lang_decl (decl); | |
1389 | GFC_DECL_ASSIGN (decl) = 1; | |
c2255bc4 AH |
1390 | length = build_decl (input_location, |
1391 | VAR_DECL, create_tmp_var_name (sym->name), | |
910450c1 | 1392 | gfc_charlen_type_node); |
c2255bc4 AH |
1393 | addr = build_decl (input_location, |
1394 | VAR_DECL, create_tmp_var_name (sym->name), | |
910450c1 FW |
1395 | pvoid_type_node); |
1396 | gfc_finish_var_decl (length, sym); | |
1397 | gfc_finish_var_decl (addr, sym); | |
1398 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1399 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1400 | target label's address. Otherwise, value is the length of a format string | |
1401 | and ASSIGN_ADDR is its address. */ | |
1402 | if (TREE_STATIC (length)) | |
df09d1d5 | 1403 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
910450c1 FW |
1404 | else |
1405 | gfc_defer_symbol_init (sym); | |
1406 | ||
1407 | GFC_DECL_STRING_LEN (decl) = length; | |
1408 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1409 | } | |
6de9cd9a | 1410 | |
08a6b8e0 TB |
1411 | |
1412 | static tree | |
1413 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1414 | { | |
1415 | unsigned id; | |
1416 | tree attr; | |
1417 | ||
1418 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1419 | if (sym_attr.ext_attr & (1 << id)) | |
1420 | { | |
1421 | attr = build_tree_list ( | |
1422 | get_identifier (ext_attr_list[id].middle_end_name), | |
1423 | NULL_TREE); | |
1424 | list = chainon (list, attr); | |
1425 | } | |
1426 | ||
b4c3a85b JJ |
1427 | if (sym_attr.omp_declare_target_link) |
1428 | list = tree_cons (get_identifier ("omp declare target link"), | |
1429 | NULL_TREE, list); | |
1430 | else if (sym_attr.omp_declare_target) | |
f014c653 JJ |
1431 | list = tree_cons (get_identifier ("omp declare target"), |
1432 | NULL_TREE, list); | |
1433 | ||
db941d7e CP |
1434 | if (sym_attr.oacc_function) |
1435 | { | |
1436 | tree dims = NULL_TREE; | |
1437 | int ix; | |
1438 | int level = sym_attr.oacc_function - 1; | |
1439 | ||
1440 | for (ix = GOMP_DIM_MAX; ix--;) | |
1441 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1442 | integer_zero_node, dims); | |
1443 | ||
1444 | list = tree_cons (get_identifier ("oacc function"), | |
1445 | dims, list); | |
1446 | } | |
1447 | ||
08a6b8e0 TB |
1448 | return list; |
1449 | } | |
1450 | ||
1451 | ||
1d0134b3 JW |
1452 | static void build_function_decl (gfc_symbol * sym, bool global); |
1453 | ||
1454 | ||
6de9cd9a DN |
1455 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1456 | exist. */ | |
1457 | ||
1458 | tree | |
1459 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1460 | { | |
1461 | tree decl; | |
1462 | tree length = NULL_TREE; | |
08a6b8e0 | 1463 | tree attributes; |
6de9cd9a | 1464 | int byref; |
be1f1ed9 | 1465 | bool intrinsic_array_parameter = false; |
431e4685 | 1466 | bool fun_or_res; |
6de9cd9a | 1467 | |
61321991 | 1468 | gcc_assert (sym->attr.referenced |
29be7510 JW |
1469 | || sym->attr.flavor == FL_PROCEDURE |
1470 | || sym->attr.use_assoc | |
4668d6f9 | 1471 | || sym->attr.used_in_submodule |
29be7510 JW |
1472 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1473 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1474 | && sym->backend_decl)); | |
6de9cd9a | 1475 | |
f64edc8b | 1476 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
6de9cd9a DN |
1477 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1478 | else | |
1479 | byref = 0; | |
1480 | ||
eece1eb9 PT |
1481 | /* Make sure that the vtab for the declared type is completed. */ |
1482 | if (sym->ts.type == BT_CLASS) | |
1483 | { | |
7a08eda1 | 1484 | gfc_component *c = CLASS_DATA (sym); |
eece1eb9 | 1485 | if (!c->ts.u.derived->backend_decl) |
58eba515 JW |
1486 | { |
1487 | gfc_find_derived_vtab (c->ts.u.derived); | |
1488 | gfc_get_derived_type (sym->ts.u.derived); | |
1489 | } | |
eece1eb9 PT |
1490 | } |
1491 | ||
5bab4c96 PT |
1492 | /* PDT parameterized array components and string_lengths must have the |
1493 | 'len' parameters substituted for the expressions appearing in the | |
1494 | declaration of the entity and memory allocated/deallocated. */ | |
1495 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1496 | && sym->param_list != NULL | |
1497 | && !(sym->attr.host_assoc || sym->attr.use_assoc || sym->attr.dummy)) | |
1498 | gfc_defer_symbol_init (sym); | |
1499 | ||
1500 | /* Dummy PDT 'len' parameters should be checked when they are explicit. */ | |
1501 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1502 | && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) | |
1503 | && sym->param_list != NULL | |
1504 | && sym->attr.dummy) | |
1505 | gfc_defer_symbol_init (sym); | |
1506 | ||
8d51f26f PT |
1507 | /* All deferred character length procedures need to retain the backend |
1508 | decl, which is a pointer to the character length in the caller's | |
1509 | namespace and to declare a local character length. */ | |
1510 | if (!byref && sym->attr.function | |
1511 | && sym->ts.type == BT_CHARACTER | |
1512 | && sym->ts.deferred | |
1513 | && sym->ts.u.cl->passed_length == NULL | |
1514 | && sym->ts.u.cl->backend_decl | |
1515 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1516 | { | |
1517 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
afbc5ae8 PT |
1518 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1519 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
8d51f26f PT |
1520 | } |
1521 | ||
431e4685 TB |
1522 | fun_or_res = byref && (sym->attr.result |
1523 | || (sym->attr.function && sym->ts.deferred)); | |
1524 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
6de9cd9a DN |
1525 | { |
1526 | /* Return via extra parameter. */ | |
1527 | if (sym->attr.result && byref | |
1528 | && !sym->backend_decl) | |
1529 | { | |
1530 | sym->backend_decl = | |
1531 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
d198b59a JJ |
1532 | /* For entry master function skip over the __entry |
1533 | argument. */ | |
1534 | if (sym->ns->proc_name->attr.entry_master) | |
910ad8de | 1535 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
6de9cd9a DN |
1536 | } |
1537 | ||
1538 | /* Dummy variables should already have been created. */ | |
6e45f57b | 1539 | gcc_assert (sym->backend_decl); |
6de9cd9a | 1540 | |
ff3598bc PT |
1541 | if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS) |
1542 | GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1; | |
1543 | ||
6de9cd9a DN |
1544 | /* Create a character length variable. */ |
1545 | if (sym->ts.type == BT_CHARACTER) | |
1546 | { | |
8d51f26f PT |
1547 | /* For a deferred dummy, make a new string length variable. */ |
1548 | if (sym->ts.deferred | |
1549 | && | |
1550 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1551 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1552 | ||
adbfb3f8 | 1553 | if (sym->ts.deferred && byref) |
8d51f26f | 1554 | { |
adbfb3f8 AV |
1555 | /* The string length of a deferred char array is stored in the |
1556 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1557 | marked as a result. Exempt this variable from generating a | |
1558 | temporary for it. */ | |
1559 | if (sym->attr.result) | |
1560 | { | |
1561 | /* We need to insert a indirect ref for param decls. */ | |
1562 | if (sym->ts.u.cl->backend_decl | |
1563 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
afbc5ae8 PT |
1564 | { |
1565 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
b62df3bf | 1566 | sym->ts.u.cl->backend_decl = |
adbfb3f8 | 1567 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
b62df3bf | 1568 | } |
afbc5ae8 | 1569 | } |
adbfb3f8 AV |
1570 | /* For all other parameters make sure, that they are copied so |
1571 | that the value and any modifications are local to the routine | |
1572 | by generating a temporary variable. */ | |
1573 | else if (sym->attr.function | |
1574 | && sym->ts.u.cl->passed_length == NULL | |
1575 | && sym->ts.u.cl->backend_decl) | |
1576 | { | |
1577 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
afbc5ae8 PT |
1578 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1579 | sym->ts.u.cl->backend_decl | |
1580 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1581 | else | |
b62df3bf | 1582 | sym->ts.u.cl->backend_decl = NULL_TREE; |
adbfb3f8 | 1583 | } |
8d51f26f PT |
1584 | } |
1585 | ||
bc21d315 | 1586 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
417ab240 JJ |
1587 | length = gfc_create_string_length (sym); |
1588 | else | |
bc21d315 | 1589 | length = sym->ts.u.cl->backend_decl; |
d168c883 | 1590 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
6de9cd9a | 1591 | { |
3e978d30 PT |
1592 | /* Add the string length to the same context as the symbol. */ |
1593 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1594 | gfc_add_decl_to_function (length); | |
1595 | else | |
1596 | gfc_add_decl_to_parent_function (length); | |
1597 | ||
1598 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1599 | DECL_CONTEXT (length)); | |
1600 | ||
417ab240 | 1601 | gfc_defer_symbol_init (sym); |
a41baa64 | 1602 | } |
6de9cd9a DN |
1603 | } |
1604 | ||
1605 | /* Use a copy of the descriptor for dummy arrays. */ | |
4ca9939b TB |
1606 | if ((sym->attr.dimension || sym->attr.codimension) |
1607 | && !TREE_USED (sym->backend_decl)) | |
6de9cd9a | 1608 | { |
3e978d30 PT |
1609 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1610 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1611 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1612 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1613 | sym->backend_decl = decl; | |
6de9cd9a DN |
1614 | } |
1615 | ||
f3b0bb7a AV |
1616 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1617 | some caller is expecting an expression to apply the component refs to. | |
1618 | Therefore the descriptor is only created and stored in | |
1619 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1620 | responsible to extract it from there, when the descriptor is | |
1621 | desired. */ | |
1622 | if (IS_CLASS_ARRAY (sym) | |
1623 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1624 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1625 | { | |
1626 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1627 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1628 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1629 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1630 | sym->backend_decl = decl; | |
1631 | } | |
1632 | ||
6de9cd9a | 1633 | TREE_USED (sym->backend_decl) = 1; |
910450c1 FW |
1634 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1635 | { | |
1636 | gfc_add_assign_aux_vars (sym); | |
1637 | } | |
77f2a970 | 1638 | |
f3b0bb7a | 1639 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
77f2a970 JJ |
1640 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1641 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1642 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1643 | gfc_nonlocal_dummy_array_decl (sym); | |
1644 | ||
c49ea23d PT |
1645 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1646 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1647 | ||
c49ea23d | 1648 | return sym->backend_decl; |
6de9cd9a DN |
1649 | } |
1650 | ||
1651 | if (sym->backend_decl) | |
1652 | return sym->backend_decl; | |
1653 | ||
4ed5664e TB |
1654 | /* Special case for array-valued named constants from intrinsic |
1655 | procedures; those are inlined. */ | |
8b198102 FXC |
1656 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1657 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1658 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
4ed5664e TB |
1659 | intrinsic_array_parameter = true; |
1660 | ||
9fa52231 | 1661 | /* If use associated compilation, use the module |
43afc047 | 1662 | declaration. */ |
9fa52231 TB |
1663 | if ((sym->attr.flavor == FL_VARIABLE |
1664 | || sym->attr.flavor == FL_PARAMETER) | |
cded7919 | 1665 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
9fa52231 TB |
1666 | && !intrinsic_array_parameter |
1667 | && sym->module | |
1668 | && gfc_get_module_backend_decl (sym)) | |
c49ea23d PT |
1669 | { |
1670 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1671 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1672 | return sym->backend_decl; | |
1673 | } | |
3af8d8cb | 1674 | |
6de9cd9a DN |
1675 | if (sym->attr.flavor == FL_PROCEDURE) |
1676 | { | |
ab1668f6 | 1677 | /* Catch functions. Only used for actual parameters, |
1d0134b3 | 1678 | procedure pointers and procptr initialization targets. */ |
ee077fcb PT |
1679 | if (sym->attr.use_assoc |
1680 | || sym->attr.used_in_submodule | |
1681 | || sym->attr.intrinsic | |
ab1668f6 | 1682 | || sym->attr.if_source != IFSRC_DECL) |
1d0134b3 JW |
1683 | { |
1684 | decl = gfc_get_extern_function_decl (sym); | |
1685 | gfc_set_decl_location (decl, &sym->declared_at); | |
1686 | } | |
1687 | else | |
1688 | { | |
1689 | if (!sym->backend_decl) | |
1690 | build_function_decl (sym, false); | |
1691 | decl = sym->backend_decl; | |
1692 | } | |
6de9cd9a DN |
1693 | return decl; |
1694 | } | |
1695 | ||
1696 | if (sym->attr.intrinsic) | |
17d5d49f | 1697 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
6de9cd9a DN |
1698 | |
1699 | /* Create string length decl first so that they can be used in the | |
e207c522 PT |
1700 | type declaration. For associate names, the target character |
1701 | length is used. Set 'length' to a constant so that if the | |
345bd7eb | 1702 | string length is a variable, it is not finished a second time. */ |
6de9cd9a | 1703 | if (sym->ts.type == BT_CHARACTER) |
e207c522 | 1704 | { |
707905d0 PT |
1705 | if (sym->attr.associate_var |
1706 | && sym->ts.deferred | |
1707 | && sym->assoc && sym->assoc->target | |
1708 | && ((sym->assoc->target->expr_type == EXPR_VARIABLE | |
1709 | && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER) | |
5c60dbc1 | 1710 | || sym->assoc->target->expr_type != EXPR_VARIABLE)) |
707905d0 PT |
1711 | sym->ts.u.cl->backend_decl = NULL_TREE; |
1712 | ||
e207c522 PT |
1713 | if (sym->attr.associate_var |
1714 | && sym->ts.u.cl->backend_decl | |
5c60dbc1 PT |
1715 | && (VAR_P (sym->ts.u.cl->backend_decl) |
1716 | || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)) | |
e207c522 PT |
1717 | length = gfc_index_zero_node; |
1718 | else | |
1719 | length = gfc_create_string_length (sym); | |
1720 | } | |
6de9cd9a DN |
1721 | |
1722 | /* Create the decl for the variable. */ | |
c2255bc4 AH |
1723 | decl = build_decl (sym->declared_at.lb->location, |
1724 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
c8cc8542 | 1725 | |
43ce5e52 FXC |
1726 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1727 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1728 | decl_attributes (&decl, attributes, 0); | |
1729 | ||
f8d0aee5 | 1730 | /* Symbols from modules should have their assembler names mangled. |
6de9cd9a DN |
1731 | This is done here rather than in gfc_finish_var_decl because it |
1732 | is different for string length variables. */ | |
345bd7eb | 1733 | if (sym->module || sym->fn_result_spec) |
a64f5186 | 1734 | { |
43ce5e52 | 1735 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
be1f1ed9 | 1736 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
a64f5186 JJ |
1737 | DECL_IGNORED_P (decl) = 1; |
1738 | } | |
6de9cd9a | 1739 | |
b3996898 JJ |
1740 | if (sym->attr.select_type_temporary) |
1741 | { | |
1742 | DECL_ARTIFICIAL (decl) = 1; | |
1743 | DECL_IGNORED_P (decl) = 1; | |
1744 | } | |
1745 | ||
4ca9939b | 1746 | if (sym->attr.dimension || sym->attr.codimension) |
6de9cd9a DN |
1747 | { |
1748 | /* Create variables to hold the non-constant bits of array info. */ | |
1749 | gfc_build_qualified_array (decl, sym); | |
1750 | ||
fe4e525c TB |
1751 | if (sym->attr.contiguous |
1752 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
6de9cd9a DN |
1753 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1754 | } | |
1755 | ||
1517fd57 | 1756 | /* Remember this variable for allocation/cleanup. */ |
9f3761c5 | 1757 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
1517fd57 | 1758 | || (sym->ts.type == BT_CLASS && |
7a08eda1 JW |
1759 | (CLASS_DATA (sym)->attr.dimension |
1760 | || CLASS_DATA (sym)->attr.allocatable)) | |
ea8b72e6 TB |
1761 | || (sym->ts.type == BT_DERIVED |
1762 | && (sym->ts.u.derived->attr.alloc_comp | |
1763 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1764 | && !sym->ns->proc_name->attr.is_main_program | |
1765 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
1517fd57 JW |
1766 | /* This applies a derived type default initializer. */ |
1767 | || (sym->ts.type == BT_DERIVED | |
1768 | && sym->attr.save == SAVE_NONE | |
1769 | && !sym->attr.data | |
1770 | && !sym->attr.allocatable | |
1771 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
be1f1ed9 | 1772 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
b7b184a8 | 1773 | gfc_defer_symbol_init (sym); |
5046aff5 | 1774 | |
8ae261c0 JJ |
1775 | /* Associate names can use the hidden string length variable |
1776 | of their associated target. */ | |
1777 | if (sym->ts.type == BT_CHARACTER | |
26f822c2 PT |
1778 | && TREE_CODE (length) != INTEGER_CST |
1779 | && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF) | |
8ae261c0 JJ |
1780 | { |
1781 | gfc_finish_var_decl (length, sym); | |
1782 | gcc_assert (!sym->value); | |
1783 | } | |
1784 | ||
6de9cd9a DN |
1785 | gfc_finish_var_decl (decl, sym); |
1786 | ||
597073ac | 1787 | if (sym->ts.type == BT_CHARACTER) |
8ae261c0 JJ |
1788 | /* Character variables need special handling. */ |
1789 | gfc_allocate_lang_decl (decl); | |
1d6b7f39 | 1790 | |
ff3598bc PT |
1791 | if (sym->assoc && sym->attr.subref_array_pointer) |
1792 | sym->attr.pointer = 1; | |
1793 | ||
1794 | if (sym->attr.pointer && sym->attr.dimension | |
1795 | && !sym->ts.deferred | |
1796 | && !(sym->attr.select_type_temporary | |
1797 | && !sym->attr.subref_array_pointer)) | |
1798 | GFC_DECL_PTR_ARRAY_P (decl) = 1; | |
1d6b7f39 | 1799 | |
c49ea23d | 1800 | if (sym->ts.type == BT_CLASS) |
ff3598bc | 1801 | GFC_DECL_CLASS(decl) = 1; |
c49ea23d | 1802 | |
6de9cd9a DN |
1803 | sym->backend_decl = decl; |
1804 | ||
910450c1 | 1805 | if (sym->attr.assign) |
6c0e51c4 | 1806 | gfc_add_assign_aux_vars (sym); |
910450c1 | 1807 | |
be1f1ed9 TB |
1808 | if (intrinsic_array_parameter) |
1809 | { | |
1810 | TREE_STATIC (decl) = 1; | |
1811 | DECL_EXTERNAL (decl) = 0; | |
1812 | } | |
1813 | ||
1814 | if (TREE_STATIC (decl) | |
1815 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
2b56d6a4 | 1816 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
43068916 | 1817 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
b8ff4e88 | 1818 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
f19626cf | 1819 | && (flag_coarray != GFC_FCOARRAY_LIB |
276515e6 PT |
1820 | || !sym->attr.codimension || sym->attr.allocatable) |
1821 | && !(sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
1822 | && !(sym->ts.type == BT_CLASS | |
1823 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type)) | |
2b56d6a4 TB |
1824 | { |
1825 | /* Add static initializer. For procedures, it is only needed if | |
1826 | SAVE is specified otherwise they need to be reinitialized | |
1827 | every time the procedure is entered. The TREE_STATIC is | |
1828 | in this case due to -fmax-stack-var-size=. */ | |
2cc6320d | 1829 | |
597073ac | 1830 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2cc6320d JW |
1831 | TREE_TYPE (decl), sym->attr.dimension |
1832 | || (sym->attr.codimension | |
1833 | && sym->attr.allocatable), | |
1834 | sym->attr.pointer || sym->attr.allocatable | |
1835 | || sym->ts.type == BT_CLASS, | |
1836 | sym->attr.proc_pointer); | |
597073ac PB |
1837 | } |
1838 | ||
77f2a970 JJ |
1839 | if (!TREE_STATIC (decl) |
1840 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1841 | && !sym->attr.pointer | |
1842 | && !sym->attr.allocatable | |
b3996898 JJ |
1843 | && !sym->attr.proc_pointer |
1844 | && !sym->attr.select_type_temporary) | |
77f2a970 JJ |
1845 | DECL_BY_REFERENCE (decl) = 1; |
1846 | ||
92d28cbb JJ |
1847 | if (sym->attr.associate_var) |
1848 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1849 | ||
cf651ca2 TB |
1850 | if (sym->attr.vtab |
1851 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
755634e6 | 1852 | TREE_READONLY (decl) = 1; |
cf651ca2 | 1853 | |
6de9cd9a DN |
1854 | return decl; |
1855 | } | |
1856 | ||
1857 | ||
7b5b57b7 PB |
1858 | /* Substitute a temporary variable in place of the real one. */ |
1859 | ||
1860 | void | |
1861 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1862 | { | |
1863 | save->attr = sym->attr; | |
1864 | save->decl = sym->backend_decl; | |
1865 | ||
1866 | gfc_clear_attr (&sym->attr); | |
1867 | sym->attr.referenced = 1; | |
1868 | sym->attr.flavor = FL_VARIABLE; | |
1869 | ||
1870 | sym->backend_decl = decl; | |
1871 | } | |
1872 | ||
1873 | ||
1874 | /* Restore the original variable. */ | |
1875 | ||
1876 | void | |
1877 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1878 | { | |
1879 | sym->attr = save->attr; | |
1880 | sym->backend_decl = save->decl; | |
1881 | } | |
1882 | ||
1883 | ||
8fb74da4 JW |
1884 | /* Declare a procedure pointer. */ |
1885 | ||
1886 | static tree | |
1887 | get_proc_pointer_decl (gfc_symbol *sym) | |
1888 | { | |
1889 | tree decl; | |
08a6b8e0 | 1890 | tree attributes; |
8fb74da4 JW |
1891 | |
1892 | decl = sym->backend_decl; | |
1893 | if (decl) | |
1894 | return decl; | |
1895 | ||
c2255bc4 AH |
1896 | decl = build_decl (input_location, |
1897 | VAR_DECL, get_identifier (sym->name), | |
8fb74da4 JW |
1898 | build_pointer_type (gfc_get_function_type (sym))); |
1899 | ||
5e4404b8 JW |
1900 | if (sym->module) |
1901 | { | |
1902 | /* Apply name mangling. */ | |
1903 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1904 | if (sym->attr.use_assoc) | |
1905 | DECL_IGNORED_P (decl) = 1; | |
1906 | } | |
8b704316 | 1907 | |
06c7153f TB |
1908 | if ((sym->ns->proc_name |
1909 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
8fb74da4 JW |
1910 | || sym->attr.contained) |
1911 | gfc_add_decl_to_function (decl); | |
6e0d2de7 | 1912 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
8fb74da4 JW |
1913 | gfc_add_decl_to_parent_function (decl); |
1914 | ||
1915 | sym->backend_decl = decl; | |
1916 | ||
6e0d2de7 JW |
1917 | /* If a variable is USE associated, it's always external. */ |
1918 | if (sym->attr.use_assoc) | |
1919 | { | |
1920 | DECL_EXTERNAL (decl) = 1; | |
1921 | TREE_PUBLIC (decl) = 1; | |
1922 | } | |
1923 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1924 | { | |
1925 | /* This is the declaration of a module variable. */ | |
a56ea54a PT |
1926 | TREE_PUBLIC (decl) = 1; |
1927 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1928 | { | |
1929 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1930 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1931 | } | |
6e0d2de7 JW |
1932 | TREE_STATIC (decl) = 1; |
1933 | } | |
1934 | ||
8fb74da4 JW |
1935 | if (!sym->attr.use_assoc |
1936 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1937 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1938 | TREE_STATIC (decl) = 1; | |
1939 | ||
1940 | if (TREE_STATIC (decl) && sym->value) | |
1941 | { | |
1942 | /* Add static initializer. */ | |
1943 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
1d0134b3 JW |
1944 | TREE_TYPE (decl), |
1945 | sym->attr.dimension, | |
1946 | false, true); | |
8fb74da4 JW |
1947 | } |
1948 | ||
a6c975bd JJ |
1949 | /* Handle threadprivate procedure pointers. */ |
1950 | if (sym->attr.threadprivate | |
1951 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
56363ffd | 1952 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
a6c975bd | 1953 | |
08a6b8e0 TB |
1954 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1955 | decl_attributes (&decl, attributes, 0); | |
1956 | ||
8fb74da4 JW |
1957 | return decl; |
1958 | } | |
1959 | ||
1960 | ||
6de9cd9a DN |
1961 | /* Get a basic decl for an external function. */ |
1962 | ||
1963 | tree | |
1964 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1965 | { | |
1966 | tree type; | |
1967 | tree fndecl; | |
08a6b8e0 | 1968 | tree attributes; |
6de9cd9a DN |
1969 | gfc_expr e; |
1970 | gfc_intrinsic_sym *isym; | |
1971 | gfc_expr argexpr; | |
e6472bce | 1972 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
6de9cd9a DN |
1973 | tree name; |
1974 | tree mangled_name; | |
71a7778c | 1975 | gfc_gsymbol *gsym; |
6de9cd9a DN |
1976 | |
1977 | if (sym->backend_decl) | |
1978 | return sym->backend_decl; | |
1979 | ||
3d79abbd PB |
1980 | /* We should never be creating external decls for alternate entry points. |
1981 | The procedure may be an alternate entry point, but we don't want/need | |
1982 | to know that. */ | |
6e45f57b | 1983 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
3d79abbd | 1984 | |
8fb74da4 JW |
1985 | if (sym->attr.proc_pointer) |
1986 | return get_proc_pointer_decl (sym); | |
1987 | ||
71a7778c PT |
1988 | /* See if this is an external procedure from the same file. If so, |
1989 | return the backend_decl. */ | |
f11de7c5 TB |
1990 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1991 | ? sym->binding_label : sym->name); | |
71a7778c | 1992 | |
77f8682b TB |
1993 | if (gsym && !gsym->defined) |
1994 | gsym = NULL; | |
1995 | ||
1996 | /* This can happen because of C binding. */ | |
1997 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1998 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1999 | goto module_sym; | |
2000 | ||
9fa52231 TB |
2001 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
2002 | && !sym->backend_decl | |
2003 | && gsym && gsym->ns | |
2004 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
2005 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
71a7778c | 2006 | { |
fb55ca75 TB |
2007 | if (!gsym->ns->proc_name->backend_decl) |
2008 | { | |
2009 | /* By construction, the external function cannot be | |
2010 | a contained procedure. */ | |
2011 | locus old_loc; | |
fb55ca75 | 2012 | |
363aab21 | 2013 | gfc_save_backend_locus (&old_loc); |
af16bc76 | 2014 | push_cfun (NULL); |
fb55ca75 TB |
2015 | |
2016 | gfc_create_function_decl (gsym->ns, true); | |
2017 | ||
2018 | pop_cfun (); | |
363aab21 | 2019 | gfc_restore_backend_locus (&old_loc); |
fb55ca75 TB |
2020 | } |
2021 | ||
71a7778c PT |
2022 | /* If the namespace has entries, the proc_name is the |
2023 | entry master. Find the entry and use its backend_decl. | |
2024 | otherwise, use the proc_name backend_decl. */ | |
2025 | if (gsym->ns->entries) | |
2026 | { | |
2027 | gfc_entry_list *entry = gsym->ns->entries; | |
2028 | ||
2029 | for (; entry; entry = entry->next) | |
2030 | { | |
2031 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
2032 | { | |
2033 | sym->backend_decl = entry->sym->backend_decl; | |
2034 | break; | |
2035 | } | |
2036 | } | |
2037 | } | |
2038 | else | |
6a018495 | 2039 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
71a7778c PT |
2040 | |
2041 | if (sym->backend_decl) | |
6a018495 TB |
2042 | { |
2043 | /* Avoid problems of double deallocation of the backend declaration | |
2044 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2045 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2046 | sym->attr.use_assoc = 0; | |
2047 | ||
2048 | return sym->backend_decl; | |
2049 | } | |
71a7778c PT |
2050 | } |
2051 | ||
3af8d8cb PT |
2052 | /* See if this is a module procedure from the same file. If so, |
2053 | return the backend_decl. */ | |
2054 | if (sym->module) | |
2055 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2056 | ||
77f8682b TB |
2057 | module_sym: |
2058 | if (gsym && gsym->ns | |
2059 | && (gsym->type == GSYM_MODULE | |
2060 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
3af8d8cb PT |
2061 | { |
2062 | gfc_symbol *s; | |
2063 | ||
2064 | s = NULL; | |
77f8682b TB |
2065 | if (gsym->type == GSYM_MODULE) |
2066 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2067 | else | |
2068 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2069 | ||
3af8d8cb PT |
2070 | if (s && s->backend_decl) |
2071 | { | |
f29bda83 TB |
2072 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2073 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2074 | true); | |
2075 | else if (sym->ts.type == BT_CHARACTER) | |
2076 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
3af8d8cb PT |
2077 | sym->backend_decl = s->backend_decl; |
2078 | return sym->backend_decl; | |
2079 | } | |
2080 | } | |
2081 | ||
6de9cd9a DN |
2082 | if (sym->attr.intrinsic) |
2083 | { | |
2084 | /* Call the resolution function to get the actual name. This is | |
2085 | a nasty hack which relies on the resolution functions only looking | |
2086 | at the first argument. We pass NULL for the second argument | |
2087 | otherwise things like AINT get confused. */ | |
2088 | isym = gfc_find_function (sym->name); | |
6e45f57b | 2089 | gcc_assert (isym->resolve.f0 != NULL); |
6de9cd9a DN |
2090 | |
2091 | memset (&e, 0, sizeof (e)); | |
2092 | e.expr_type = EXPR_FUNCTION; | |
2093 | ||
2094 | memset (&argexpr, 0, sizeof (argexpr)); | |
6e45f57b | 2095 | gcc_assert (isym->formal); |
6de9cd9a DN |
2096 | argexpr.ts = isym->formal->ts; |
2097 | ||
2098 | if (isym->formal->next == NULL) | |
2099 | isym->resolve.f1 (&e, &argexpr); | |
2100 | else | |
2101 | { | |
0e7e7e6e FXC |
2102 | if (isym->formal->next->next == NULL) |
2103 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2104 | else | |
2105 | { | |
5cda5098 FXC |
2106 | if (isym->formal->next->next->next == NULL) |
2107 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2108 | else | |
2109 | { | |
2110 | /* All specific intrinsics take less than 5 arguments. */ | |
2111 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2112 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2113 | } | |
0e7e7e6e | 2114 | } |
6de9cd9a | 2115 | } |
973ff4c0 | 2116 | |
c61819ff | 2117 | if (flag_f2c |
973ff4c0 TS |
2118 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2119 | || e.ts.type == BT_COMPLEX)) | |
2120 | { | |
2121 | /* Specific which needs a different implementation if f2c | |
2122 | calling conventions are used. */ | |
e6472bce | 2123 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
973ff4c0 TS |
2124 | } |
2125 | else | |
e6472bce | 2126 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
973ff4c0 | 2127 | |
6de9cd9a DN |
2128 | name = get_identifier (s); |
2129 | mangled_name = name; | |
2130 | } | |
2131 | else | |
2132 | { | |
2133 | name = gfc_sym_identifier (sym); | |
2134 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2135 | } | |
2136 | ||
2137 | type = gfc_get_function_type (sym); | |
c2255bc4 AH |
2138 | fndecl = build_decl (input_location, |
2139 | FUNCTION_DECL, name, type); | |
6de9cd9a | 2140 | |
384f586a KT |
2141 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2142 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
dd5a833e | 2143 | the opposite of declaring a function as static in C). */ |
384f586a KT |
2144 | DECL_EXTERNAL (fndecl) = 1; |
2145 | TREE_PUBLIC (fndecl) = 1; | |
2146 | ||
43ce5e52 FXC |
2147 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2148 | decl_attributes (&fndecl, attributes, 0); | |
2149 | ||
2150 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
6de9cd9a DN |
2151 | |
2152 | /* Set the context of this decl. */ | |
2153 | if (0 && sym->ns && sym->ns->proc_name) | |
2154 | { | |
2155 | /* TODO: Add external decls to the appropriate scope. */ | |
2156 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2157 | } | |
2158 | else | |
2159 | { | |
f8d0aee5 | 2160 | /* Global declaration, e.g. intrinsic subroutine. */ |
6de9cd9a DN |
2161 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2162 | } | |
2163 | ||
6de9cd9a DN |
2164 | /* Set attributes for PURE functions. A call to PURE function in the |
2165 | Fortran 95 sense is both pure and without side effects in the C | |
2166 | sense. */ | |
033418dc | 2167 | if (sym->attr.pure || sym->attr.implicit_pure) |
6de9cd9a | 2168 | { |
cf013e9f | 2169 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
becfd6e5 | 2170 | DECL_PURE_P (fndecl) = 1; |
b7e6a6b3 TS |
2171 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2172 | parameters and don't use alternate returns (is this | |
2173 | allowed?). In that case, calls to them are meaningless, and | |
3d79abbd | 2174 | can be optimized away. See also in build_function_decl(). */ |
b7e6a6b3 | 2175 | TREE_SIDE_EFFECTS (fndecl) = 0; |
6de9cd9a DN |
2176 | } |
2177 | ||
fe58e076 TK |
2178 | /* Mark non-returning functions. */ |
2179 | if (sym->attr.noreturn) | |
2180 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2181 | ||
6de9cd9a DN |
2182 | sym->backend_decl = fndecl; |
2183 | ||
2184 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2185 | pushdecl_top_level (fndecl); | |
2186 | ||
dd2fc525 JJ |
2187 | if (sym->formal_ns |
2188 | && sym->formal_ns->proc_name == sym | |
2189 | && sym->formal_ns->omp_declare_simd) | |
2190 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2191 | ||
6de9cd9a DN |
2192 | return fndecl; |
2193 | } | |
2194 | ||
2195 | ||
2196 | /* Create a declaration for a procedure. For external functions (in the C | |
3d79abbd PB |
2197 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2198 | a master function with alternate entry points. */ | |
6de9cd9a | 2199 | |
3d79abbd | 2200 | static void |
fb55ca75 | 2201 | build_function_decl (gfc_symbol * sym, bool global) |
6de9cd9a | 2202 | { |
08a6b8e0 | 2203 | tree fndecl, type, attributes; |
6de9cd9a | 2204 | symbol_attribute attr; |
3d79abbd | 2205 | tree result_decl; |
6de9cd9a DN |
2206 | gfc_formal_arglist *f; |
2207 | ||
70112e2a PT |
2208 | bool module_procedure = sym->attr.module_procedure |
2209 | && sym->ns | |
2210 | && sym->ns->proc_name | |
2211 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2212 | ||
2213 | gcc_assert (!sym->attr.external || module_procedure); | |
6de9cd9a | 2214 | |
1d0134b3 JW |
2215 | if (sym->backend_decl) |
2216 | return; | |
2217 | ||
c8cc8542 PB |
2218 | /* Set the line and filename. sym->declared_at seems to point to the |
2219 | last statement for subroutines, but it'll do for now. */ | |
2220 | gfc_set_backend_locus (&sym->declared_at); | |
2221 | ||
6de9cd9a | 2222 | /* Allow only one nesting level. Allow public declarations. */ |
6e45f57b | 2223 | gcc_assert (current_function_decl == NULL_TREE |
e5b16755 RG |
2224 | || DECL_FILE_SCOPE_P (current_function_decl) |
2225 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2226 | == NAMESPACE_DECL)); | |
6de9cd9a DN |
2227 | |
2228 | type = gfc_get_function_type (sym); | |
c2255bc4 AH |
2229 | fndecl = build_decl (input_location, |
2230 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
6de9cd9a | 2231 | |
43ce5e52 FXC |
2232 | attr = sym->attr; |
2233 | ||
384f586a KT |
2234 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2235 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
dd5a833e | 2236 | the opposite of declaring a function as static in C). */ |
384f586a KT |
2237 | DECL_EXTERNAL (fndecl) = 0; |
2238 | ||
58341a42 TB |
2239 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2240 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2241 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
c61819ff | 2242 | && flag_module_private))) |
58341a42 TB |
2243 | sym->attr.access = ACCESS_PRIVATE; |
2244 | ||
384f586a | 2245 | if (!current_function_decl |
5af6fa0b | 2246 | && !sym->attr.entry_master && !sym->attr.is_main_program |
cdd244b8 TB |
2247 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2248 | || sym->attr.public_used)) | |
384f586a KT |
2249 | TREE_PUBLIC (fndecl) = 1; |
2250 | ||
29be7510 JW |
2251 | if (sym->attr.referenced || sym->attr.entry_master) |
2252 | TREE_USED (fndecl) = 1; | |
2253 | ||
43ce5e52 FXC |
2254 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2255 | decl_attributes (&fndecl, attributes, 0); | |
2256 | ||
6de9cd9a | 2257 | /* Figure out the return type of the declared function, and build a |
f8d0aee5 | 2258 | RESULT_DECL for it. If this is a subroutine with alternate |
6de9cd9a | 2259 | returns, build a RESULT_DECL for it. */ |
6de9cd9a DN |
2260 | result_decl = NULL_TREE; |
2261 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2262 | if (attr.function) | |
2263 | { | |
2264 | if (gfc_return_by_reference (sym)) | |
2265 | type = void_type_node; | |
2266 | else | |
2267 | { | |
2268 | if (sym->result != sym) | |
2269 | result_decl = gfc_sym_identifier (sym->result); | |
2270 | ||
2271 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2272 | } | |
2273 | } | |
2274 | else | |
2275 | { | |
2276 | /* Look for alternate return placeholders. */ | |
2277 | int has_alternate_returns = 0; | |
4cbc9039 | 2278 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
6de9cd9a DN |
2279 | { |
2280 | if (f->sym == NULL) | |
2281 | { | |
2282 | has_alternate_returns = 1; | |
2283 | break; | |
2284 | } | |
2285 | } | |
2286 | ||
2287 | if (has_alternate_returns) | |
2288 | type = integer_type_node; | |
2289 | else | |
2290 | type = void_type_node; | |
2291 | } | |
2292 | ||
c2255bc4 AH |
2293 | result_decl = build_decl (input_location, |
2294 | RESULT_DECL, result_decl, type); | |
b785f485 RH |
2295 | DECL_ARTIFICIAL (result_decl) = 1; |
2296 | DECL_IGNORED_P (result_decl) = 1; | |
6de9cd9a DN |
2297 | DECL_CONTEXT (result_decl) = fndecl; |
2298 | DECL_RESULT (fndecl) = result_decl; | |
2299 | ||
2300 | /* Don't call layout_decl for a RESULT_DECL. | |
f8d0aee5 | 2301 | layout_decl (result_decl, 0); */ |
6de9cd9a | 2302 | |
6de9cd9a | 2303 | /* TREE_STATIC means the function body is defined here. */ |
1d754240 | 2304 | TREE_STATIC (fndecl) = 1; |
6de9cd9a | 2305 | |
f8d0aee5 | 2306 | /* Set attributes for PURE functions. A call to a PURE function in the |
6de9cd9a DN |
2307 | Fortran 95 sense is both pure and without side effects in the C |
2308 | sense. */ | |
033418dc | 2309 | if (attr.pure || attr.implicit_pure) |
6de9cd9a | 2310 | { |
b7e6a6b3 | 2311 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
86bf520d | 2312 | including an alternate return. In that case it can also be |
1f2959f0 | 2313 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
a01db3bf | 2314 | if (attr.function && !gfc_return_by_reference (sym)) |
becfd6e5 | 2315 | DECL_PURE_P (fndecl) = 1; |
6de9cd9a DN |
2316 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2317 | } | |
2318 | ||
08a6b8e0 | 2319 | |
6de9cd9a DN |
2320 | /* Layout the function declaration and put it in the binding level |
2321 | of the current function. */ | |
fb55ca75 | 2322 | |
755634e6 | 2323 | if (global) |
fb55ca75 TB |
2324 | pushdecl_top_level (fndecl); |
2325 | else | |
2326 | pushdecl (fndecl); | |
3d79abbd | 2327 | |
e5b16755 RG |
2328 | /* Perform name mangling if this is a top level or module procedure. */ |
2329 | if (current_function_decl == NULL_TREE) | |
2330 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2331 | ||
3d79abbd PB |
2332 | sym->backend_decl = fndecl; |
2333 | } | |
2334 | ||
2335 | ||
2336 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2337 | ||
2338 | static void | |
2339 | create_function_arglist (gfc_symbol * sym) | |
2340 | { | |
2341 | tree fndecl; | |
2342 | gfc_formal_arglist *f; | |
417ab240 JJ |
2343 | tree typelist, hidden_typelist; |
2344 | tree arglist, hidden_arglist; | |
3d79abbd PB |
2345 | tree type; |
2346 | tree parm; | |
2347 | ||
2348 | fndecl = sym->backend_decl; | |
2349 | ||
1d754240 PB |
2350 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2351 | the new FUNCTION_DECL node. */ | |
1d754240 | 2352 | arglist = NULL_TREE; |
417ab240 | 2353 | hidden_arglist = NULL_TREE; |
1d754240 | 2354 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
3d79abbd PB |
2355 | |
2356 | if (sym->attr.entry_master) | |
2357 | { | |
2358 | type = TREE_VALUE (typelist); | |
c2255bc4 AH |
2359 | parm = build_decl (input_location, |
2360 | PARM_DECL, get_identifier ("__entry"), type); | |
8b704316 | 2361 | |
3d79abbd PB |
2362 | DECL_CONTEXT (parm) = fndecl; |
2363 | DECL_ARG_TYPE (parm) = type; | |
2364 | TREE_READONLY (parm) = 1; | |
faf28b3a | 2365 | gfc_finish_decl (parm); |
3e978d30 | 2366 | DECL_ARTIFICIAL (parm) = 1; |
3d79abbd PB |
2367 | |
2368 | arglist = chainon (arglist, parm); | |
2369 | typelist = TREE_CHAIN (typelist); | |
2370 | } | |
2371 | ||
1d754240 | 2372 | if (gfc_return_by_reference (sym)) |
6de9cd9a | 2373 | { |
417ab240 | 2374 | tree type = TREE_VALUE (typelist), length = NULL; |
6de9cd9a | 2375 | |
1d754240 PB |
2376 | if (sym->ts.type == BT_CHARACTER) |
2377 | { | |
1d754240 | 2378 | /* Length of character result. */ |
417ab240 | 2379 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
6de9cd9a | 2380 | |
c2255bc4 AH |
2381 | length = build_decl (input_location, |
2382 | PARM_DECL, | |
1d754240 | 2383 | get_identifier (".__result"), |
417ab240 | 2384 | len_type); |
ce1ff48e PT |
2385 | if (POINTER_TYPE_P (len_type)) |
2386 | { | |
2387 | sym->ts.u.cl->passed_length = length; | |
2388 | TREE_USED (length) = 1; | |
2389 | } | |
2390 | else if (!sym->ts.u.cl->length) | |
1d754240 | 2391 | { |
bc21d315 | 2392 | sym->ts.u.cl->backend_decl = length; |
1d754240 | 2393 | TREE_USED (length) = 1; |
6de9cd9a | 2394 | } |
6e45f57b | 2395 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
1d754240 | 2396 | DECL_CONTEXT (length) = fndecl; |
417ab240 | 2397 | DECL_ARG_TYPE (length) = len_type; |
1d754240 | 2398 | TREE_READONLY (length) = 1; |
ca0e9281 | 2399 | DECL_ARTIFICIAL (length) = 1; |
faf28b3a | 2400 | gfc_finish_decl (length); |
bc21d315 JW |
2401 | if (sym->ts.u.cl->backend_decl == NULL |
2402 | || sym->ts.u.cl->backend_decl == length) | |
417ab240 JJ |
2403 | { |
2404 | gfc_symbol *arg; | |
2405 | tree backend_decl; | |
6de9cd9a | 2406 | |
bc21d315 | 2407 | if (sym->ts.u.cl->backend_decl == NULL) |
417ab240 | 2408 | { |
c2255bc4 AH |
2409 | tree len = build_decl (input_location, |
2410 | VAR_DECL, | |
417ab240 JJ |
2411 | get_identifier ("..__result"), |
2412 | gfc_charlen_type_node); | |
2413 | DECL_ARTIFICIAL (len) = 1; | |
2414 | TREE_USED (len) = 1; | |
bc21d315 | 2415 | sym->ts.u.cl->backend_decl = len; |
417ab240 | 2416 | } |
6de9cd9a | 2417 | |
417ab240 JJ |
2418 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2419 | arg = sym->result ? sym->result : sym; | |
2420 | backend_decl = arg->backend_decl; | |
2421 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2422 | type. */ | |
2423 | arg->backend_decl = NULL; | |
2424 | type = gfc_sym_type (arg); | |
2425 | arg->backend_decl = backend_decl; | |
2426 | type = build_reference_type (type); | |
2427 | } | |
2428 | } | |
6de9cd9a | 2429 | |
c2255bc4 AH |
2430 | parm = build_decl (input_location, |
2431 | PARM_DECL, get_identifier ("__result"), type); | |
6de9cd9a | 2432 | |
417ab240 JJ |
2433 | DECL_CONTEXT (parm) = fndecl; |
2434 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2435 | TREE_READONLY (parm) = 1; | |
2436 | DECL_ARTIFICIAL (parm) = 1; | |
faf28b3a | 2437 | gfc_finish_decl (parm); |
6de9cd9a | 2438 | |
417ab240 JJ |
2439 | arglist = chainon (arglist, parm); |
2440 | typelist = TREE_CHAIN (typelist); | |
6de9cd9a | 2441 | |
417ab240 JJ |
2442 | if (sym->ts.type == BT_CHARACTER) |
2443 | { | |
2444 | gfc_allocate_lang_decl (parm); | |
2445 | arglist = chainon (arglist, length); | |
1d754240 PB |
2446 | typelist = TREE_CHAIN (typelist); |
2447 | } | |
2448 | } | |
6de9cd9a | 2449 | |
417ab240 | 2450 | hidden_typelist = typelist; |
4cbc9039 | 2451 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
417ab240 JJ |
2452 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2453 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2454 | ||
4cbc9039 | 2455 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
1d754240 PB |
2456 | { |
2457 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
417ab240 | 2458 | |
1d754240 PB |
2459 | /* Ignore alternate returns. */ |
2460 | if (f->sym == NULL) | |
2461 | continue; | |
6de9cd9a | 2462 | |
1d754240 | 2463 | type = TREE_VALUE (typelist); |
6de9cd9a | 2464 | |
33215bb3 TB |
2465 | if (f->sym->ts.type == BT_CHARACTER |
2466 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
417ab240 JJ |
2467 | { |
2468 | tree len_type = TREE_VALUE (hidden_typelist); | |
2469 | tree length = NULL_TREE; | |
8d51f26f PT |
2470 | if (!f->sym->ts.deferred) |
2471 | gcc_assert (len_type == gfc_charlen_type_node); | |
2472 | else | |
2473 | gcc_assert (POINTER_TYPE_P (len_type)); | |
417ab240 JJ |
2474 | |
2475 | strcpy (&name[1], f->sym->name); | |
2476 | name[0] = '_'; | |
c2255bc4 AH |
2477 | length = build_decl (input_location, |
2478 | PARM_DECL, get_identifier (name), len_type); | |
6de9cd9a | 2479 | |
417ab240 JJ |
2480 | hidden_arglist = chainon (hidden_arglist, length); |
2481 | DECL_CONTEXT (length) = fndecl; | |
2482 | DECL_ARTIFICIAL (length) = 1; | |
2483 | DECL_ARG_TYPE (length) = len_type; | |
2484 | TREE_READONLY (length) = 1; | |
faf28b3a | 2485 | gfc_finish_decl (length); |
6de9cd9a | 2486 | |
cadb8f42 | 2487 | /* Remember the passed value. */ |
8b704316 | 2488 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
3ba558db TB |
2489 | { |
2490 | /* This can happen if the same type is used for multiple | |
2491 | arguments. We need to copy cl as otherwise | |
2492 | cl->passed_length gets overwritten. */ | |
b76e28c6 | 2493 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
3ba558db | 2494 | } |
bc21d315 | 2495 | f->sym->ts.u.cl->passed_length = length; |
6de9cd9a | 2496 | |
417ab240 | 2497 | /* Use the passed value for assumed length variables. */ |
bc21d315 | 2498 | if (!f->sym->ts.u.cl->length) |
6de9cd9a | 2499 | { |
417ab240 | 2500 | TREE_USED (length) = 1; |
bc21d315 JW |
2501 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2502 | f->sym->ts.u.cl->backend_decl = length; | |
417ab240 JJ |
2503 | } |
2504 | ||
2505 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2506 | ||
bc21d315 JW |
2507 | if (f->sym->ts.u.cl->backend_decl == NULL |
2508 | || f->sym->ts.u.cl->backend_decl == length) | |
417ab240 | 2509 | { |
afbc5ae8 PT |
2510 | if (POINTER_TYPE_P (len_type)) |
2511 | f->sym->ts.u.cl->backend_decl = | |
2512 | build_fold_indirect_ref_loc (input_location, length); | |
2513 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
417ab240 JJ |
2514 | gfc_create_string_length (f->sym); |
2515 | ||
2516 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2517 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2518 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2519 | else | |
2520 | type = gfc_sym_type (f->sym); | |
6de9cd9a | 2521 | } |
6de9cd9a | 2522 | } |
60f97ac8 | 2523 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
9b110be2 | 2524 | hence, the optional status cannot be transferred via a NULL pointer. |
60f97ac8 TB |
2525 | Thus, we will use a hidden argument in that case. */ |
2526 | else if (f->sym->attr.optional && f->sym->attr.value | |
adede54c | 2527 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
f6288c24 | 2528 | && !gfc_bt_struct (f->sym->ts.type)) |
60f97ac8 TB |
2529 | { |
2530 | tree tmp; | |
2531 | strcpy (&name[1], f->sym->name); | |
2532 | name[0] = '_'; | |
2533 | tmp = build_decl (input_location, | |
2534 | PARM_DECL, get_identifier (name), | |
2535 | boolean_type_node); | |
2536 | ||
2537 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2538 | DECL_CONTEXT (tmp) = fndecl; | |
2539 | DECL_ARTIFICIAL (tmp) = 1; | |
2540 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2541 | TREE_READONLY (tmp) = 1; | |
2542 | gfc_finish_decl (tmp); | |
2543 | } | |
6de9cd9a | 2544 | |
417ab240 JJ |
2545 | /* For non-constant length array arguments, make sure they use |
2546 | a different type node from TYPE_ARG_TYPES type. */ | |
2547 | if (f->sym->attr.dimension | |
2548 | && type == TREE_VALUE (typelist) | |
2549 | && TREE_CODE (type) == POINTER_TYPE | |
2550 | && GFC_ARRAY_TYPE_P (type) | |
2551 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2552 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2553 | { | |
2554 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2555 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2556 | else | |
2557 | type = gfc_sym_type (f->sym); | |
2558 | } | |
2559 | ||
8fb74da4 JW |
2560 | if (f->sym->attr.proc_pointer) |
2561 | type = build_pointer_type (type); | |
2562 | ||
c28d1d9b TB |
2563 | if (f->sym->attr.volatile_) |
2564 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2565 | ||
df2fba9e | 2566 | /* Build the argument declaration. */ |
c2255bc4 AH |
2567 | parm = build_decl (input_location, |
2568 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
417ab240 | 2569 | |
c28d1d9b TB |
2570 | if (f->sym->attr.volatile_) |
2571 | { | |
2572 | TREE_THIS_VOLATILE (parm) = 1; | |
2573 | TREE_SIDE_EFFECTS (parm) = 1; | |
2574 | } | |
2575 | ||
417ab240 JJ |
2576 | /* Fill in arg stuff. */ |
2577 | DECL_CONTEXT (parm) = fndecl; | |
2578 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
31ec3535 JJ |
2579 | /* All implementation args except for VALUE are read-only. */ |
2580 | if (!f->sym->attr.value) | |
2581 | TREE_READONLY (parm) = 1; | |
714495cd JJ |
2582 | if (POINTER_TYPE_P (type) |
2583 | && (!f->sym->attr.proc_pointer | |
2584 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2585 | DECL_BY_REFERENCE (parm) = 1; | |
417ab240 | 2586 | |
faf28b3a | 2587 | gfc_finish_decl (parm); |
92d28cbb | 2588 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
417ab240 JJ |
2589 | |
2590 | f->sym->backend_decl = parm; | |
2591 | ||
aa13dc3c TB |
2592 | /* Coarrays which are descriptorless or assumed-shape pass with |
2593 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
f19626cf | 2594 | if (flag_coarray == GFC_FCOARRAY_LIB |
598cc4fa TB |
2595 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2596 | && !f->sym->attr.allocatable) | |
2597 | || (f->sym->ts.type == BT_CLASS | |
2598 | && CLASS_DATA (f->sym)->attr.codimension | |
2599 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
0c53708e TB |
2600 | { |
2601 | tree caf_type; | |
2602 | tree token; | |
2603 | tree offset; | |
2604 | ||
2605 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2606 | && !sym->attr.is_bind_c); | |
598cc4fa TB |
2607 | caf_type = f->sym->ts.type == BT_CLASS |
2608 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2609 | : TREE_TYPE (f->sym->backend_decl); | |
0c53708e | 2610 | |
0c53708e TB |
2611 | token = build_decl (input_location, PARM_DECL, |
2612 | create_tmp_var_name ("caf_token"), | |
2613 | build_qualified_type (pvoid_type_node, | |
2614 | TYPE_QUAL_RESTRICT)); | |
598cc4fa TB |
2615 | if ((f->sym->ts.type != BT_CLASS |
2616 | && f->sym->as->type != AS_DEFERRED) | |
2617 | || (f->sym->ts.type == BT_CLASS | |
2618 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
aa13dc3c TB |
2619 | { |
2620 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2621 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2622 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2623 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2624 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2625 | } | |
2626 | else | |
2627 | { | |
2628 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2629 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2630 | } | |
8b704316 | 2631 | |
0c53708e TB |
2632 | DECL_CONTEXT (token) = fndecl; |
2633 | DECL_ARTIFICIAL (token) = 1; | |
2634 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2635 | TREE_READONLY (token) = 1; | |
2636 | hidden_arglist = chainon (hidden_arglist, token); | |
2637 | gfc_finish_decl (token); | |
2638 | ||
0c53708e TB |
2639 | offset = build_decl (input_location, PARM_DECL, |
2640 | create_tmp_var_name ("caf_offset"), | |
2641 | gfc_array_index_type); | |
2642 | ||
598cc4fa TB |
2643 | if ((f->sym->ts.type != BT_CLASS |
2644 | && f->sym->as->type != AS_DEFERRED) | |
2645 | || (f->sym->ts.type == BT_CLASS | |
2646 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
aa13dc3c TB |
2647 | { |
2648 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2649 | == NULL_TREE); | |
2650 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2651 | } | |
2652 | else | |
2653 | { | |
2654 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2655 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2656 | } | |
0c53708e TB |
2657 | DECL_CONTEXT (offset) = fndecl; |
2658 | DECL_ARTIFICIAL (offset) = 1; | |
2659 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2660 | TREE_READONLY (offset) = 1; | |
2661 | hidden_arglist = chainon (hidden_arglist, offset); | |
2662 | gfc_finish_decl (offset); | |
2663 | } | |
2664 | ||
417ab240 | 2665 | arglist = chainon (arglist, parm); |
1d754240 | 2666 | typelist = TREE_CHAIN (typelist); |
6de9cd9a | 2667 | } |
1d754240 | 2668 | |
7861a5ce TB |
2669 | /* Add the hidden string length parameters, unless the procedure |
2670 | is bind(C). */ | |
2671 | if (!sym->attr.is_bind_c) | |
2672 | arglist = chainon (arglist, hidden_arglist); | |
417ab240 | 2673 | |
884d2e6b SE |
2674 | gcc_assert (hidden_typelist == NULL_TREE |
2675 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
1d754240 | 2676 | DECL_ARGUMENTS (fndecl) = arglist; |
3d79abbd | 2677 | } |
1d754240 | 2678 | |
3d79abbd PB |
2679 | /* Do the setup necessary before generating the body of a function. */ |
2680 | ||
2681 | static void | |
2682 | trans_function_start (gfc_symbol * sym) | |
2683 | { | |
2684 | tree fndecl; | |
2685 | ||
2686 | fndecl = sym->backend_decl; | |
2687 | ||
f8d0aee5 | 2688 | /* Let GCC know the current scope is this function. */ |
3d79abbd PB |
2689 | current_function_decl = fndecl; |
2690 | ||
f8d0aee5 | 2691 | /* Let the world know what we're about to do. */ |
3d79abbd PB |
2692 | announce_function (fndecl); |
2693 | ||
e5b16755 | 2694 | if (DECL_FILE_SCOPE_P (fndecl)) |
3d79abbd | 2695 | { |
f8d0aee5 | 2696 | /* Create RTL for function declaration. */ |
3d79abbd PB |
2697 | rest_of_decl_compilation (fndecl, 1, 0); |
2698 | } | |
2699 | ||
f8d0aee5 | 2700 | /* Create RTL for function definition. */ |
3d79abbd PB |
2701 | make_decl_rtl (fndecl); |
2702 | ||
b6b27e98 | 2703 | allocate_struct_function (fndecl, false); |
3d79abbd | 2704 | |
f8d0aee5 | 2705 | /* function.c requires a push at the start of the function. */ |
87a60f68 | 2706 | pushlevel (); |
3d79abbd PB |
2707 | } |
2708 | ||
2709 | /* Create thunks for alternate entry points. */ | |
2710 | ||
2711 | static void | |
fb55ca75 | 2712 | build_entry_thunks (gfc_namespace * ns, bool global) |
3d79abbd PB |
2713 | { |
2714 | gfc_formal_arglist *formal; | |
2715 | gfc_formal_arglist *thunk_formal; | |
2716 | gfc_entry_list *el; | |
2717 | gfc_symbol *thunk_sym; | |
2718 | stmtblock_t body; | |
2719 | tree thunk_fndecl; | |
3d79abbd | 2720 | tree tmp; |
c8cc8542 | 2721 | locus old_loc; |
3d79abbd PB |
2722 | |
2723 | /* This should always be a toplevel function. */ | |
6e45f57b | 2724 | gcc_assert (current_function_decl == NULL_TREE); |
3d79abbd | 2725 | |
363aab21 | 2726 | gfc_save_backend_locus (&old_loc); |
3d79abbd PB |
2727 | for (el = ns->entries; el; el = el->next) |
2728 | { | |
9771b263 DN |
2729 | vec<tree, va_gc> *args = NULL; |
2730 | vec<tree, va_gc> *string_args = NULL; | |
3bb06db4 | 2731 | |
3d79abbd | 2732 | thunk_sym = el->sym; |
8b704316 | 2733 | |
fb55ca75 | 2734 | build_function_decl (thunk_sym, global); |
3d79abbd PB |
2735 | create_function_arglist (thunk_sym); |
2736 | ||
2737 | trans_function_start (thunk_sym); | |
2738 | ||
2739 | thunk_fndecl = thunk_sym->backend_decl; | |
2740 | ||
c7c79a09 | 2741 | gfc_init_block (&body); |
3d79abbd | 2742 | |
f8d0aee5 | 2743 | /* Pass extra parameter identifying this entry point. */ |
7d60be94 | 2744 | tmp = build_int_cst (gfc_array_index_type, el->id); |
9771b263 | 2745 | vec_safe_push (args, tmp); |
3d79abbd | 2746 | |
d198b59a JJ |
2747 | if (thunk_sym->attr.function) |
2748 | { | |
2749 | if (gfc_return_by_reference (ns->proc_name)) | |
2750 | { | |
2751 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
9771b263 | 2752 | vec_safe_push (args, ref); |
d198b59a | 2753 | if (ns->proc_name->ts.type == BT_CHARACTER) |
9771b263 | 2754 | vec_safe_push (args, DECL_CHAIN (ref)); |
d198b59a JJ |
2755 | } |
2756 | } | |
2757 | ||
4cbc9039 JW |
2758 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2759 | formal = formal->next) | |
3d79abbd | 2760 | { |
d198b59a JJ |
2761 | /* Ignore alternate returns. */ |
2762 | if (formal->sym == NULL) | |
2763 | continue; | |
2764 | ||
3d79abbd PB |
2765 | /* We don't have a clever way of identifying arguments, so resort to |
2766 | a brute-force search. */ | |
4cbc9039 | 2767 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
3d79abbd PB |
2768 | thunk_formal; |
2769 | thunk_formal = thunk_formal->next) | |
2770 | { | |
2771 | if (thunk_formal->sym == formal->sym) | |
2772 | break; | |
2773 | } | |
2774 | ||
2775 | if (thunk_formal) | |
2776 | { | |
2777 | /* Pass the argument. */ | |
3e978d30 | 2778 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
9771b263 | 2779 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
3d79abbd PB |
2780 | if (formal->sym->ts.type == BT_CHARACTER) |
2781 | { | |
bc21d315 | 2782 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
9771b263 | 2783 | vec_safe_push (string_args, tmp); |
3d79abbd PB |
2784 | } |
2785 | } | |
2786 | else | |
2787 | { | |
2788 | /* Pass NULL for a missing argument. */ | |
9771b263 | 2789 | vec_safe_push (args, null_pointer_node); |
3d79abbd PB |
2790 | if (formal->sym->ts.type == BT_CHARACTER) |
2791 | { | |
c3238e32 | 2792 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
9771b263 | 2793 | vec_safe_push (string_args, tmp); |
3d79abbd PB |
2794 | } |
2795 | } | |
2796 | } | |
2797 | ||
2798 | /* Call the master function. */ | |
9771b263 | 2799 | vec_safe_splice (args, string_args); |
3d79abbd | 2800 | tmp = ns->proc_name->backend_decl; |
3bb06db4 | 2801 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
d198b59a JJ |
2802 | if (ns->proc_name->attr.mixed_entry_master) |
2803 | { | |
2804 | tree union_decl, field; | |
2805 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2806 | ||
c2255bc4 AH |
2807 | union_decl = build_decl (input_location, |
2808 | VAR_DECL, get_identifier ("__result"), | |
d198b59a JJ |
2809 | TREE_TYPE (master_type)); |
2810 | DECL_ARTIFICIAL (union_decl) = 1; | |
2811 | DECL_EXTERNAL (union_decl) = 0; | |
2812 | TREE_PUBLIC (union_decl) = 0; | |
2813 | TREE_USED (union_decl) = 1; | |
2814 | layout_decl (union_decl, 0); | |
2815 | pushdecl (union_decl); | |
2816 | ||
2817 | DECL_CONTEXT (union_decl) = current_function_decl; | |
bc98ed60 TB |
2818 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2819 | TREE_TYPE (union_decl), union_decl, tmp); | |
d198b59a JJ |
2820 | gfc_add_expr_to_block (&body, tmp); |
2821 | ||
2822 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
910ad8de | 2823 | field; field = DECL_CHAIN (field)) |
d198b59a JJ |
2824 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2825 | thunk_sym->result->name) == 0) | |
2826 | break; | |
2827 | gcc_assert (field != NULL_TREE); | |
bc98ed60 TB |
2828 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2829 | TREE_TYPE (field), union_decl, field, | |
2830 | NULL_TREE); | |
8b704316 | 2831 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
44855d8c TS |
2832 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2833 | DECL_RESULT (current_function_decl), tmp); | |
d198b59a JJ |
2834 | tmp = build1_v (RETURN_EXPR, tmp); |
2835 | } | |
2836 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2837 | != void_type_node) | |
2838 | { | |
bc98ed60 | 2839 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
44855d8c TS |
2840 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2841 | DECL_RESULT (current_function_decl), tmp); | |
d198b59a JJ |
2842 | tmp = build1_v (RETURN_EXPR, tmp); |
2843 | } | |
3d79abbd PB |
2844 | gfc_add_expr_to_block (&body, tmp); |
2845 | ||
2846 | /* Finish off this function and send it for code generation. */ | |
2847 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
c7c79a09 | 2848 | tmp = getdecls (); |
87a60f68 | 2849 | poplevel (1, 1); |
3d79abbd | 2850 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
c7c79a09 JJ |
2851 | DECL_SAVED_TREE (thunk_fndecl) |
2852 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2853 | DECL_INITIAL (thunk_fndecl)); | |
3d79abbd PB |
2854 | |
2855 | /* Output the GENERIC tree. */ | |
2856 | dump_function (TDI_original, thunk_fndecl); | |
2857 | ||
2858 | /* Store the end of the function, so that we get good line number | |
2859 | info for the epilogue. */ | |
2860 | cfun->function_end_locus = input_location; | |
2861 | ||
2862 | /* We're leaving the context of this function, so zap cfun. | |
2863 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2864 | tree_rest_of_compilation. */ | |
db2960f4 | 2865 | set_cfun (NULL); |
3d79abbd PB |
2866 | |
2867 | current_function_decl = NULL_TREE; | |
2868 | ||
3dafb85c | 2869 | cgraph_node::finalize_function (thunk_fndecl, true); |
3d79abbd PB |
2870 | |
2871 | /* We share the symbols in the formal argument list with other entry | |
2872 | points and the master function. Clear them so that they are | |
2873 | recreated for each function. */ | |
4cbc9039 JW |
2874 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2875 | formal = formal->next) | |
d198b59a JJ |
2876 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2877 | { | |
2878 | formal->sym->backend_decl = NULL_TREE; | |
2879 | if (formal->sym->ts.type == BT_CHARACTER) | |
bc21d315 | 2880 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
d198b59a JJ |
2881 | } |
2882 | ||
2883 | if (thunk_sym->attr.function) | |
3d79abbd | 2884 | { |
d198b59a | 2885 | if (thunk_sym->ts.type == BT_CHARACTER) |
bc21d315 | 2886 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
d198b59a | 2887 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
bc21d315 | 2888 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
3d79abbd PB |
2889 | } |
2890 | } | |
c8cc8542 | 2891 | |
363aab21 | 2892 | gfc_restore_backend_locus (&old_loc); |
3d79abbd PB |
2893 | } |
2894 | ||
2895 | ||
2896 | /* Create a decl for a function, and create any thunks for alternate entry | |
fb55ca75 TB |
2897 | points. If global is true, generate the function in the global binding |
2898 | level, otherwise in the current binding level (which can be global). */ | |
3d79abbd PB |
2899 | |
2900 | void | |
fb55ca75 | 2901 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
3d79abbd PB |
2902 | { |
2903 | /* Create a declaration for the master function. */ | |
fb55ca75 | 2904 | build_function_decl (ns->proc_name, global); |
3d79abbd | 2905 | |
f8d0aee5 | 2906 | /* Compile the entry thunks. */ |
3d79abbd | 2907 | if (ns->entries) |
fb55ca75 | 2908 | build_entry_thunks (ns, global); |
3d79abbd PB |
2909 | |
2910 | /* Now create the read argument list. */ | |
2911 | create_function_arglist (ns->proc_name); | |
dd2fc525 JJ |
2912 | |
2913 | if (ns->omp_declare_simd) | |
2914 | gfc_trans_omp_declare_simd (ns); | |
3d79abbd PB |
2915 | } |
2916 | ||
5f20c93a | 2917 | /* Return the decl used to hold the function return value. If |
da4c6ed8 | 2918 | parent_flag is set, the context is the parent_scope. */ |
6de9cd9a DN |
2919 | |
2920 | tree | |
5f20c93a | 2921 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
6de9cd9a | 2922 | { |
5f20c93a PT |
2923 | tree decl; |
2924 | tree length; | |
2925 | tree this_fake_result_decl; | |
2926 | tree this_function_decl; | |
6de9cd9a DN |
2927 | |
2928 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2929 | ||
5f20c93a PT |
2930 | if (parent_flag) |
2931 | { | |
2932 | this_fake_result_decl = parent_fake_result_decl; | |
2933 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2934 | } | |
2935 | else | |
2936 | { | |
2937 | this_fake_result_decl = current_fake_result_decl; | |
2938 | this_function_decl = current_function_decl; | |
2939 | } | |
2940 | ||
d198b59a | 2941 | if (sym |
5f20c93a | 2942 | && sym->ns->proc_name->backend_decl == this_function_decl |
417ab240 | 2943 | && sym->ns->proc_name->attr.entry_master |
d198b59a JJ |
2944 | && sym != sym->ns->proc_name) |
2945 | { | |
417ab240 | 2946 | tree t = NULL, var; |
5f20c93a PT |
2947 | if (this_fake_result_decl != NULL) |
2948 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
417ab240 JJ |
2949 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2950 | break; | |
2951 | if (t) | |
2952 | return TREE_VALUE (t); | |
5f20c93a PT |
2953 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2954 | ||
2955 | if (parent_flag) | |
2956 | this_fake_result_decl = parent_fake_result_decl; | |
2957 | else | |
2958 | this_fake_result_decl = current_fake_result_decl; | |
2959 | ||
417ab240 | 2960 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
d198b59a JJ |
2961 | { |
2962 | tree field; | |
2963 | ||
2964 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
910ad8de | 2965 | field; field = DECL_CHAIN (field)) |
d198b59a JJ |
2966 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2967 | sym->name) == 0) | |
2968 | break; | |
2969 | ||
2970 | gcc_assert (field != NULL_TREE); | |
bc98ed60 TB |
2971 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2972 | TREE_TYPE (field), decl, field, NULL_TREE); | |
d198b59a | 2973 | } |
5f20c93a PT |
2974 | |
2975 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2976 | if (parent_flag) | |
2977 | gfc_add_decl_to_parent_function (var); | |
2978 | else | |
2979 | gfc_add_decl_to_function (var); | |
2980 | ||
417ab240 JJ |
2981 | SET_DECL_VALUE_EXPR (var, decl); |
2982 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
4b8ae4db | 2983 | GFC_DECL_RESULT (var) = 1; |
5f20c93a PT |
2984 | |
2985 | TREE_CHAIN (this_fake_result_decl) | |
2986 | = tree_cons (get_identifier (sym->name), var, | |
2987 | TREE_CHAIN (this_fake_result_decl)); | |
417ab240 | 2988 | return var; |
d198b59a JJ |
2989 | } |
2990 | ||
5f20c93a PT |
2991 | if (this_fake_result_decl != NULL_TREE) |
2992 | return TREE_VALUE (this_fake_result_decl); | |
6de9cd9a DN |
2993 | |
2994 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2995 | sym is NULL. */ | |
2996 | if (!sym) | |
2997 | return NULL_TREE; | |
2998 | ||
417ab240 | 2999 | if (sym->ts.type == BT_CHARACTER) |
6de9cd9a | 3000 | { |
bc21d315 | 3001 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
417ab240 JJ |
3002 | length = gfc_create_string_length (sym); |
3003 | else | |
bc21d315 | 3004 | length = sym->ts.u.cl->backend_decl; |
d168c883 | 3005 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
a7d6b765 | 3006 | gfc_add_decl_to_function (length); |
6de9cd9a DN |
3007 | } |
3008 | ||
3009 | if (gfc_return_by_reference (sym)) | |
3010 | { | |
5f20c93a | 3011 | decl = DECL_ARGUMENTS (this_function_decl); |
d198b59a | 3012 | |
5f20c93a | 3013 | if (sym->ns->proc_name->backend_decl == this_function_decl |
d198b59a | 3014 | && sym->ns->proc_name->attr.entry_master) |
910ad8de | 3015 | decl = DECL_CHAIN (decl); |
6de9cd9a DN |
3016 | |
3017 | TREE_USED (decl) = 1; | |
3018 | if (sym->as) | |
3019 | decl = gfc_build_dummy_array_decl (sym, decl); | |
3020 | } | |
3021 | else | |
3022 | { | |
3023 | sprintf (name, "__result_%.20s", | |
5f20c93a | 3024 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
6de9cd9a | 3025 | |
da4c6ed8 | 3026 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
88e09c79 | 3027 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
c2255bc4 | 3028 | VAR_DECL, get_identifier (name), |
da4c6ed8 TS |
3029 | gfc_sym_type (sym)); |
3030 | else | |
88e09c79 | 3031 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
c2255bc4 | 3032 | VAR_DECL, get_identifier (name), |
da4c6ed8 | 3033 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
6de9cd9a DN |
3034 | DECL_ARTIFICIAL (decl) = 1; |
3035 | DECL_EXTERNAL (decl) = 0; | |
3036 | TREE_PUBLIC (decl) = 0; | |
3037 | TREE_USED (decl) = 1; | |
6c7a4dfd | 3038 | GFC_DECL_RESULT (decl) = 1; |
c55cebda | 3039 | TREE_ADDRESSABLE (decl) = 1; |
6de9cd9a DN |
3040 | |
3041 | layout_decl (decl, 0); | |
92d28cbb | 3042 | gfc_finish_decl_attrs (decl, &sym->attr); |
6de9cd9a | 3043 | |
5f20c93a PT |
3044 | if (parent_flag) |
3045 | gfc_add_decl_to_parent_function (decl); | |
3046 | else | |
3047 | gfc_add_decl_to_function (decl); | |
6de9cd9a DN |
3048 | } |
3049 | ||
5f20c93a PT |
3050 | if (parent_flag) |
3051 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3052 | else | |
3053 | current_fake_result_decl = build_tree_list (NULL, decl); | |
6de9cd9a DN |
3054 | |
3055 | return decl; | |
3056 | } | |
3057 | ||
3058 | ||
3059 | /* Builds a function decl. The remaining parameters are the types of the | |
3060 | function arguments. Negative nargs indicates a varargs function. */ | |
3061 | ||
0b7b376d RG |
3062 | static tree |
3063 | build_library_function_decl_1 (tree name, const char *spec, | |
3064 | tree rettype, int nargs, va_list p) | |
6de9cd9a | 3065 | { |
9771b263 | 3066 | vec<tree, va_gc> *arglist; |
6de9cd9a DN |
3067 | tree fntype; |
3068 | tree fndecl; | |
6de9cd9a DN |
3069 | int n; |
3070 | ||
3071 | /* Library functions must be declared with global scope. */ | |
6e45f57b | 3072 | gcc_assert (current_function_decl == NULL_TREE); |
6de9cd9a | 3073 | |
6de9cd9a | 3074 | /* Create a list of the argument types. */ |
9771b263 | 3075 | vec_alloc (arglist, abs (nargs)); |
6c32445b | 3076 | for (n = abs (nargs); n > 0; n--) |
6de9cd9a | 3077 | { |
6c32445b | 3078 | tree argtype = va_arg (p, tree); |
9771b263 | 3079 | arglist->quick_push (argtype); |
6de9cd9a DN |
3080 | } |
3081 | ||
3082 | /* Build the function type and decl. */ | |
6c32445b NF |
3083 | if (nargs >= 0) |
3084 | fntype = build_function_type_vec (rettype, arglist); | |
3085 | else | |
3086 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
0b7b376d RG |
3087 | if (spec) |
3088 | { | |
3089 | tree attr_args = build_tree_list (NULL_TREE, | |
3090 | build_string (strlen (spec), spec)); | |
3091 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3092 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3093 | fntype = build_type_attribute_variant (fntype, attrs); | |
3094 | } | |
c2255bc4 AH |
3095 | fndecl = build_decl (input_location, |
3096 | FUNCTION_DECL, name, fntype); | |
6de9cd9a DN |
3097 | |
3098 | /* Mark this decl as external. */ | |
3099 | DECL_EXTERNAL (fndecl) = 1; | |
3100 | TREE_PUBLIC (fndecl) = 1; | |
3101 | ||
6de9cd9a DN |
3102 | pushdecl (fndecl); |
3103 | ||
0e6df31e | 3104 | rest_of_decl_compilation (fndecl, 1, 0); |
6de9cd9a DN |
3105 | |
3106 | return fndecl; | |
3107 | } | |
3108 | ||
0b7b376d RG |
3109 | /* Builds a function decl. The remaining parameters are the types of the |
3110 | function arguments. Negative nargs indicates a varargs function. */ | |
3111 | ||
3112 | tree | |
3113 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3114 | { | |
3115 | tree ret; | |
3116 | va_list args; | |
3117 | va_start (args, nargs); | |
3118 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3119 | va_end (args); | |
3120 | return ret; | |
3121 | } | |
3122 | ||
3123 | /* Builds a function decl. The remaining parameters are the types of the | |
3124 | function arguments. Negative nargs indicates a varargs function. | |
3125 | The SPEC parameter specifies the function argument and return type | |
3126 | specification according to the fnspec function type attribute. */ | |
3127 | ||
3f34855a | 3128 | tree |
0b7b376d RG |
3129 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3130 | tree rettype, int nargs, ...) | |
3131 | { | |
3132 | tree ret; | |
3133 | va_list args; | |
3134 | va_start (args, nargs); | |
3135 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3136 | va_end (args); | |
3137 | return ret; | |
3138 | } | |
3139 | ||
6de9cd9a DN |
3140 | static void |
3141 | gfc_build_intrinsic_function_decls (void) | |
3142 | { | |
e2cad04b | 3143 | tree gfc_int4_type_node = gfc_get_int_type (4); |
a416c4c7 | 3144 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
e2cad04b | 3145 | tree gfc_int8_type_node = gfc_get_int_type (8); |
a416c4c7 | 3146 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
644cb69f | 3147 | tree gfc_int16_type_node = gfc_get_int_type (16); |
e2cad04b | 3148 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
374929b2 FXC |
3149 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3150 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
e2cad04b | 3151 | |
6de9cd9a | 3152 | /* String functions. */ |
6368f166 DF |
3153 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3154 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3155 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3156 | gfc_charlen_type_node, pchar1_type_node); | |
4ca4be7f | 3157 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
22b139e1 | 3158 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
6368f166 DF |
3159 | |
3160 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3161 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3162 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3163 | gfc_charlen_type_node, pchar1_type_node, | |
3164 | gfc_charlen_type_node, pchar1_type_node); | |
22b139e1 | 3165 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
6368f166 DF |
3166 | |
3167 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3168 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3169 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
4ca4be7f | 3170 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
22b139e1 | 3171 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
6368f166 DF |
3172 | |
3173 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3174 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3175 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3176 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3177 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
22b139e1 | 3178 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
6368f166 DF |
3179 | |
3180 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3181 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3182 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3183 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3184 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
22b139e1 | 3185 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
6368f166 DF |
3186 | |
3187 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3188 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3189 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3190 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3191 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
22b139e1 | 3192 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
6368f166 DF |
3193 | |
3194 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3195 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3196 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3197 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3198 | pchar1_type_node); | |
3199 | ||
3200 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3201 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3202 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3203 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3204 | integer_type_node); | |
3205 | ||
3206 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3207 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3208 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3209 | pchar1_type_node); | |
22b139e1 | 3210 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
6368f166 DF |
3211 | |
3212 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3213 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3214 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3215 | pchar1_type_node); | |
22b139e1 | 3216 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
6368f166 DF |
3217 | |
3218 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3219 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3220 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3221 | pchar1_type_node, gfc_charlen_type_node); | |
4ca4be7f | 3222 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
22b139e1 | 3223 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
6368f166 DF |
3224 | |
3225 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3226 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3227 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3228 | gfc_charlen_type_node, pchar4_type_node); | |
4ca4be7f | 3229 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
22b139e1 | 3230 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
6368f166 DF |
3231 | |
3232 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3233 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3234 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3235 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3236 | pchar4_type_node); | |
22b139e1 | 3237 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
6368f166 DF |
3238 | |
3239 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3240 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3241 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
4ca4be7f | 3242 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
22b139e1 | 3243 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
6368f166 DF |
3244 | |
3245 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3246 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3247 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3248 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3249 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
22b139e1 | 3250 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
6368f166 DF |
3251 | |
3252 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3253 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3254 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3255 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3256 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
22b139e1 | 3257 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
6368f166 DF |
3258 | |
3259 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3260 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3261 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3262 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3263 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
22b139e1 | 3264 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
6368f166 DF |
3265 | |
3266 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3267 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3268 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3269 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3270 | pchar4_type_node); | |
3271 | ||
3272 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3273 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3274 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3275 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3276 | integer_type_node); | |
3277 | ||
3278 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3279 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3280 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3281 | pchar4_type_node); | |
22b139e1 | 3282 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
6368f166 DF |
3283 | |
3284 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3285 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3286 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3287 | pchar4_type_node); | |
22b139e1 | 3288 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
6368f166 DF |
3289 | |
3290 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3291 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3292 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3293 | pvoid_type_node, gfc_charlen_type_node); | |
4ca4be7f | 3294 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
22b139e1 | 3295 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
d393bbd7 FXC |
3296 | |
3297 | ||
3298 | /* Conversion between character kinds. */ | |
3299 | ||
6368f166 DF |
3300 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3301 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3302 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3303 | gfc_charlen_type_node, pchar1_type_node); | |
d393bbd7 | 3304 | |
6368f166 DF |
3305 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3306 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3307 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3308 | gfc_charlen_type_node, pchar4_type_node); | |
d393bbd7 | 3309 | |
374929b2 | 3310 | /* Misc. functions. */ |
2263c775 | 3311 | |
6368f166 DF |
3312 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3313 | get_identifier (PREFIX("ttynam")), ".W", | |
3314 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3315 | integer_type_node); | |
3316 | ||
3317 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3318 | get_identifier (PREFIX("fdate")), ".W", | |
3319 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3320 | ||
3321 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3322 | get_identifier (PREFIX("ctime")), ".W", | |
3323 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3324 | gfc_int8_type_node); | |
3325 | ||
3326 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3327 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3328 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
4ca4be7f | 3329 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
22b139e1 | 3330 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
6368f166 DF |
3331 | |
3332 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3333 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3334 | gfc_int4_type_node, 1, pvoid_type_node); | |
4ca4be7f | 3335 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
22b139e1 | 3336 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
6368f166 DF |
3337 | |
3338 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3339 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3340 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3341 | pvoid_type_node); | |
4ca4be7f | 3342 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
22b139e1 | 3343 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
6de9cd9a | 3344 | |
a416c4c7 FXC |
3345 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3346 | get_identifier (PREFIX("system_clock_4")), | |
3347 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3348 | gfc_pint4_type_node); | |
3349 | ||
3350 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3351 | get_identifier (PREFIX("system_clock_8")), | |
3352 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3353 | gfc_pint8_type_node); | |
3354 | ||
6de9cd9a | 3355 | /* Power functions. */ |
5b200ac2 | 3356 | { |
644cb69f FXC |
3357 | tree ctype, rtype, itype, jtype; |
3358 | int rkind, ikind, jkind; | |
3359 | #define NIKINDS 3 | |
3360 | #define NRKINDS 4 | |
3361 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3362 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3363 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3364 | ||
3365 | for (ikind=0; ikind < NIKINDS; ikind++) | |
5b200ac2 | 3366 | { |
644cb69f FXC |
3367 | itype = gfc_get_int_type (ikinds[ikind]); |
3368 | ||
3369 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3370 | { | |
3371 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3372 | if (itype && jtype) | |
3373 | { | |
f8862a1b | 3374 | sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind], |
644cb69f FXC |
3375 | ikinds[jkind]); |
3376 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3377 | gfc_build_library_function_decl (get_identifier (name), | |
3378 | jtype, 2, jtype, itype); | |
67fdae36 | 3379 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
22b139e1 | 3380 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
644cb69f FXC |
3381 | } |
3382 | } | |
3383 | ||
3384 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
5b200ac2 | 3385 | { |
644cb69f FXC |
3386 | rtype = gfc_get_real_type (rkinds[rkind]); |
3387 | if (rtype && itype) | |
3388 | { | |
f8862a1b | 3389 | sprintf (name, PREFIX("pow_r%d_i%d"), rkinds[rkind], |
644cb69f FXC |
3390 | ikinds[ikind]); |
3391 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3392 | gfc_build_library_function_decl (get_identifier (name), | |
3393 | rtype, 2, rtype, itype); | |
67fdae36 | 3394 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
22b139e1 | 3395 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
644cb69f FXC |
3396 | } |
3397 | ||
3398 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3399 | if (ctype && itype) | |
3400 | { | |
f8862a1b | 3401 | sprintf (name, PREFIX("pow_c%d_i%d"), rkinds[rkind], |
644cb69f FXC |
3402 | ikinds[ikind]); |
3403 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3404 | gfc_build_library_function_decl (get_identifier (name), | |
3405 | ctype, 2,ctype, itype); | |
67fdae36 | 3406 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
22b139e1 | 3407 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
644cb69f | 3408 | } |
5b200ac2 FW |
3409 | } |
3410 | } | |
644cb69f FXC |
3411 | #undef NIKINDS |
3412 | #undef NRKINDS | |
5b200ac2 FW |
3413 | } |
3414 | ||
6368f166 DF |
3415 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3416 | get_identifier (PREFIX("ishftc4")), | |
3417 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3418 | gfc_int4_type_node); | |
22b139e1 JJ |
3419 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3420 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
8b704316 | 3421 | |
6368f166 DF |
3422 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3423 | get_identifier (PREFIX("ishftc8")), | |
3424 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3425 | gfc_int4_type_node); | |
22b139e1 JJ |
3426 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3427 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
6368f166 | 3428 | |
644cb69f | 3429 | if (gfc_int16_type_node) |
22b139e1 JJ |
3430 | { |
3431 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
6368f166 DF |
3432 | get_identifier (PREFIX("ishftc16")), |
3433 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3434 | gfc_int4_type_node); | |
22b139e1 JJ |
3435 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3436 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3437 | } | |
644cb69f | 3438 | |
5a0aad31 FXC |
3439 | /* BLAS functions. */ |
3440 | { | |
dd52ecb0 | 3441 | tree pint = build_pointer_type (integer_type_node); |
5a0aad31 FXC |
3442 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3443 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3444 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3445 | tree pz = build_pointer_type | |
3446 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3447 | ||
3448 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3449 | (get_identifier | |
c61819ff | 3450 | (flag_underscoring ? "sgemm_" : "sgemm"), |
5a0aad31 FXC |
3451 | void_type_node, 15, pchar_type_node, |
3452 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
dd52ecb0 JB |
3453 | ps, pint, ps, ps, pint, integer_type_node, |
3454 | integer_type_node); | |
5a0aad31 FXC |
3455 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3456 | (get_identifier | |
c61819ff | 3457 | (flag_underscoring ? "dgemm_" : "dgemm"), |
5a0aad31 FXC |
3458 | void_type_node, 15, pchar_type_node, |
3459 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
dd52ecb0 JB |
3460 | pd, pint, pd, pd, pint, integer_type_node, |
3461 | integer_type_node); | |
5a0aad31 FXC |
3462 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3463 | (get_identifier | |
c61819ff | 3464 | (flag_underscoring ? "cgemm_" : "cgemm"), |
5a0aad31 FXC |
3465 | void_type_node, 15, pchar_type_node, |
3466 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
dd52ecb0 JB |
3467 | pc, pint, pc, pc, pint, integer_type_node, |
3468 | integer_type_node); | |
5a0aad31 FXC |
3469 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3470 | (get_identifier | |
c61819ff | 3471 | (flag_underscoring ? "zgemm_" : "zgemm"), |
5a0aad31 FXC |
3472 | void_type_node, 15, pchar_type_node, |
3473 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
dd52ecb0 JB |
3474 | pz, pint, pz, pz, pint, integer_type_node, |
3475 | integer_type_node); | |
5a0aad31 FXC |
3476 | } |
3477 | ||
6de9cd9a | 3478 | /* Other functions. */ |
6368f166 DF |
3479 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3480 | get_identifier (PREFIX("size0")), ".R", | |
3481 | gfc_array_index_type, 1, pvoid_type_node); | |
4ca4be7f | 3482 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
22b139e1 | 3483 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
6368f166 DF |
3484 | |
3485 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3486 | get_identifier (PREFIX("size1")), ".R", | |
3487 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
4ca4be7f | 3488 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
22b139e1 | 3489 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
6368f166 DF |
3490 | |
3491 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3492 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
22b139e1 | 3493 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
6de9cd9a DN |
3494 | } |
3495 | ||
3496 | ||
3497 | /* Make prototypes for runtime library functions. */ | |
3498 | ||
3499 | void | |
3500 | gfc_build_builtin_function_decls (void) | |
3501 | { | |
e2cad04b | 3502 | tree gfc_int4_type_node = gfc_get_int_type (4); |
6de9cd9a | 3503 | |
6368f166 DF |
3504 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3505 | get_identifier (PREFIX("stop_numeric")), | |
3f5fabc0 | 3506 | void_type_node, 1, integer_type_node); |
6d1b0f92 | 3507 | /* STOP doesn't return. */ |
eed61baa TK |
3508 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3509 | ||
6368f166 DF |
3510 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3511 | get_identifier (PREFIX("stop_string")), ".R.", | |
3f5fabc0 | 3512 | void_type_node, 2, pchar_type_node, size_type_node); |
6d1b0f92 | 3513 | /* STOP doesn't return. */ |
6368f166 | 3514 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
4ca4be7f | 3515 | |
6368f166 DF |
3516 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3517 | get_identifier (PREFIX("error_stop_numeric")), | |
3f5fabc0 | 3518 | void_type_node, 1, integer_type_node); |
6d1b0f92 JD |
3519 | /* ERROR STOP doesn't return. */ |
3520 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3521 | ||
6368f166 DF |
3522 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3523 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3f5fabc0 | 3524 | void_type_node, 2, pchar_type_node, size_type_node); |
d0a4a61c TB |
3525 | /* ERROR STOP doesn't return. */ |
3526 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3527 | ||
6368f166 DF |
3528 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3529 | get_identifier (PREFIX("pause_numeric")), | |
3530 | void_type_node, 1, gfc_int4_type_node); | |
6d1b0f92 | 3531 | |
6368f166 DF |
3532 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3533 | get_identifier (PREFIX("pause_string")), ".R.", | |
3534 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
6de9cd9a | 3535 | |
6368f166 DF |
3536 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3537 | get_identifier (PREFIX("runtime_error")), ".R", | |
3538 | void_type_node, -1, pchar_type_node); | |
16275f18 SB |
3539 | /* The runtime_error function does not return. */ |
3540 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
6de9cd9a | 3541 | |
6368f166 DF |
3542 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3543 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3544 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
f96d606f JD |
3545 | /* The runtime_error_at function does not return. */ |
3546 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
8b704316 | 3547 | |
6368f166 DF |
3548 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3549 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3550 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3551 | ||
3552 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3553 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3554 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3555 | pchar_type_node); | |
3556 | ||
3557 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3558 | get_identifier (PREFIX("os_error")), ".R", | |
3559 | void_type_node, 1, pchar_type_node); | |
1529b8d9 FXC |
3560 | /* The runtime_error function does not return. */ |
3561 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3562 | ||
6368f166 DF |
3563 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3564 | get_identifier (PREFIX("set_args")), | |
3565 | void_type_node, 2, integer_type_node, | |
3566 | build_pointer_type (pchar_type_node)); | |
092231a8 | 3567 | |
6368f166 DF |
3568 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3569 | get_identifier (PREFIX("set_fpe")), | |
3570 | void_type_node, 1, integer_type_node); | |
944b8b35 | 3571 | |
8b198102 FXC |
3572 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3573 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3574 | void_type_node, 1, pvoid_type_node); | |
3575 | ||
3576 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3577 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3578 | void_type_node, 1, pvoid_type_node); | |
3579 | ||
68d2e027 | 3580 | /* Keep the array dimension in sync with the call, later in this file. */ |
6368f166 DF |
3581 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3582 | get_identifier (PREFIX("set_options")), "..R", | |
3583 | void_type_node, 2, integer_type_node, | |
3584 | build_pointer_type (integer_type_node)); | |
8b67b708 | 3585 | |
6368f166 DF |
3586 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3587 | get_identifier (PREFIX("set_convert")), | |
3588 | void_type_node, 1, integer_type_node); | |
eaa90d25 | 3589 | |
6368f166 DF |
3590 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3591 | get_identifier (PREFIX("set_record_marker")), | |
3592 | void_type_node, 1, integer_type_node); | |
d67ab5ee | 3593 | |
6368f166 DF |
3594 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3595 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3596 | void_type_node, 1, integer_type_node); | |
07b3bbf2 | 3597 | |
0b7b376d | 3598 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
6368f166 DF |
3599 | get_identifier (PREFIX("internal_pack")), ".r", |
3600 | pvoid_type_node, 1, pvoid_type_node); | |
6de9cd9a | 3601 | |
0b7b376d | 3602 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
6368f166 DF |
3603 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3604 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3605 | ||
3606 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3607 | get_identifier (PREFIX("associated")), ".RR", | |
3608 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
4ca4be7f | 3609 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
22b139e1 | 3610 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
6de9cd9a | 3611 | |
60386f50 | 3612 | /* Coarray library calls. */ |
f19626cf | 3613 | if (flag_coarray == GFC_FCOARRAY_LIB) |
60386f50 TB |
3614 | { |
3615 | tree pint_type, pppchar_type; | |
3616 | ||
3617 | pint_type = build_pointer_type (integer_type_node); | |
3618 | pppchar_type | |
3619 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3620 | ||
3621 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
4971dd80 AV |
3622 | get_identifier (PREFIX("caf_init")), void_type_node, |
3623 | 2, pint_type, pppchar_type); | |
60386f50 TB |
3624 | |
3625 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3626 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3627 | ||
a8a5f4a9 | 3628 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
4971dd80 AV |
3629 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3630 | 1, integer_type_node); | |
a8a5f4a9 TB |
3631 | |
3632 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
4971dd80 AV |
3633 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3634 | 2, integer_type_node, integer_type_node); | |
a8a5f4a9 | 3635 | |
b8ff4e88 | 3636 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3c9f5092 AV |
3637 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3638 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
3f5fabc0 | 3639 | pint_type, pchar_type_node, size_type_node); |
5d81ddd0 TB |
3640 | |
3641 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
ba85c8c3 AV |
3642 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3643 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
3f5fabc0 | 3644 | size_type_node); |
b8ff4e88 | 3645 | |
b5116268 | 3646 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
4971dd80 AV |
3647 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3648 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
93e2e046 | 3649 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
20d0bfce | 3650 | boolean_type_node, pint_type); |
b5116268 TB |
3651 | |
3652 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
f8862a1b | 3653 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRWR", void_type_node, 11, |
4971dd80 | 3654 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
93e2e046 | 3655 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
f8862a1b | 3656 | boolean_type_node, pint_type, pvoid_type_node); |
b5116268 TB |
3657 | |
3658 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3c9f5092 AV |
3659 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3660 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3661 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3662 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3663 | integer_type_node, boolean_type_node, integer_type_node); | |
3664 | ||
3665 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3666 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRWR", void_type_node, |
3667 | 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3668 | pvoid_type_node, integer_type_node, integer_type_node, | |
3669 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
3c9f5092 AV |
3670 | |
3671 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3672 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRWR", |
3673 | void_type_node, 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3674 | pvoid_type_node, integer_type_node, integer_type_node, | |
3675 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
3c9f5092 AV |
3676 | |
3677 | gfor_fndecl_caf_sendget_by_ref | |
3678 | = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3679 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWWRR", |
3680 | void_type_node, 13, pvoid_type_node, integer_type_node, | |
3c9f5092 AV |
3681 | pvoid_type_node, pvoid_type_node, integer_type_node, |
3682 | pvoid_type_node, integer_type_node, integer_type_node, | |
87e8aa3b AV |
3683 | boolean_type_node, pint_type, pint_type, integer_type_node, |
3684 | integer_type_node); | |
b5116268 | 3685 | |
60386f50 | 3686 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
f5c01f5b | 3687 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
3f5fabc0 | 3688 | 3, pint_type, pchar_type_node, size_type_node); |
60386f50 | 3689 | |
9315dff0 AF |
3690 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3691 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3f5fabc0 | 3692 | 3, pint_type, pchar_type_node, size_type_node); |
9315dff0 | 3693 | |
60386f50 | 3694 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
f5c01f5b DC |
3695 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3696 | 5, integer_type_node, pint_type, pint_type, | |
3f5fabc0 | 3697 | pchar_type_node, size_type_node); |
60386f50 TB |
3698 | |
3699 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3700 | get_identifier (PREFIX("caf_error_stop")), | |
3f5fabc0 | 3701 | void_type_node, 1, integer_type_node); |
60386f50 TB |
3702 | /* CAF's ERROR STOP doesn't return. */ |
3703 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3704 | ||
3705 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3706 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3f5fabc0 | 3707 | void_type_node, 2, pchar_type_node, size_type_node); |
60386f50 TB |
3708 | /* CAF's ERROR STOP doesn't return. */ |
3709 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
d62cf3df | 3710 | |
0daa7ed9 | 3711 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
4971dd80 | 3712 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
3f5fabc0 | 3713 | void_type_node, 1, integer_type_node); |
0daa7ed9 AF |
3714 | /* CAF's STOP doesn't return. */ |
3715 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3716 | ||
3717 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
4971dd80 | 3718 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
3f5fabc0 | 3719 | void_type_node, 2, pchar_type_node, size_type_node); |
0daa7ed9 AF |
3720 | /* CAF's STOP doesn't return. */ |
3721 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3722 | ||
42a8246d TB |
3723 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3724 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3725 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3726 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
42a8246d TB |
3727 | |
3728 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3729 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3730 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3731 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
42a8246d TB |
3732 | |
3733 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3734 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3735 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3736 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
42a8246d TB |
3737 | integer_type_node, integer_type_node); |
3738 | ||
3739 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3740 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3741 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3742 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3743 | integer_type_node, integer_type_node); | |
3744 | ||
bc0229f9 TB |
3745 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3746 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3747 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3748 | pint_type, pint_type, pchar_type_node, size_type_node); |
bc0229f9 TB |
3749 | |
3750 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3751 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
772e797a | 3752 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
3f5fabc0 | 3753 | pint_type, pchar_type_node, size_type_node); |
bc0229f9 | 3754 | |
5df445a2 TB |
3755 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3756 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3757 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3758 | pint_type, pchar_type_node, size_type_node); |
5df445a2 TB |
3759 | |
3760 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3761 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3762 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3763 | pint_type, pchar_type_node, size_type_node); |
5df445a2 TB |
3764 | |
3765 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3766 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3767 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3768 | pint_type, pint_type); | |
3769 | ||
ef78bc3c AV |
3770 | gfor_fndecl_caf_fail_image = gfc_build_library_function_decl ( |
3771 | get_identifier (PREFIX("caf_fail_image")), void_type_node, 0); | |
3772 | /* CAF's FAIL doesn't return. */ | |
3773 | TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1; | |
3774 | ||
3775 | gfor_fndecl_caf_failed_images | |
3776 | = gfc_build_library_function_decl_with_spec ( | |
3777 | get_identifier (PREFIX("caf_failed_images")), "WRR", | |
3778 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3779 | integer_type_node); | |
3780 | ||
f8862a1b DR |
3781 | gfor_fndecl_caf_form_team |
3782 | = gfc_build_library_function_decl_with_spec ( | |
3783 | get_identifier (PREFIX("caf_form_team")), "RWR", | |
3784 | void_type_node, 3, integer_type_node, ppvoid_type_node, | |
3785 | integer_type_node); | |
3786 | ||
3787 | gfor_fndecl_caf_change_team | |
3788 | = gfc_build_library_function_decl_with_spec ( | |
3789 | get_identifier (PREFIX("caf_change_team")), "RR", | |
3790 | void_type_node, 2, ppvoid_type_node, | |
3791 | integer_type_node); | |
3792 | ||
3793 | gfor_fndecl_caf_end_team | |
3794 | = gfc_build_library_function_decl ( | |
3795 | get_identifier (PREFIX("caf_end_team")), void_type_node, 0); | |
3796 | ||
3797 | gfor_fndecl_caf_get_team | |
3798 | = gfc_build_library_function_decl_with_spec ( | |
3799 | get_identifier (PREFIX("caf_get_team")), "R", | |
3800 | void_type_node, 1, integer_type_node); | |
3801 | ||
3802 | gfor_fndecl_caf_sync_team | |
3803 | = gfc_build_library_function_decl_with_spec ( | |
3804 | get_identifier (PREFIX("caf_sync_team")), "RR", | |
3805 | void_type_node, 2, ppvoid_type_node, | |
3806 | integer_type_node); | |
3807 | ||
3808 | gfor_fndecl_caf_team_number | |
3809 | = gfc_build_library_function_decl_with_spec ( | |
3810 | get_identifier (PREFIX("caf_team_number")), "R", | |
3811 | integer_type_node, 1, integer_type_node); | |
3812 | ||
ef78bc3c AV |
3813 | gfor_fndecl_caf_image_status |
3814 | = gfc_build_library_function_decl_with_spec ( | |
3815 | get_identifier (PREFIX("caf_image_status")), "RR", | |
3816 | integer_type_node, 2, integer_type_node, ppvoid_type_node); | |
3817 | ||
3818 | gfor_fndecl_caf_stopped_images | |
3819 | = gfc_build_library_function_decl_with_spec ( | |
3820 | get_identifier (PREFIX("caf_stopped_images")), "WRR", | |
3821 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3822 | integer_type_node); | |
3823 | ||
a16ee379 TB |
3824 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3825 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3826 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3827 | pint_type, pchar_type_node, size_type_node); |
a16ee379 | 3828 | |
d62cf3df | 3829 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
b5116268 TB |
3830 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3831 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3832 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
d62cf3df TB |
3833 | |
3834 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
b5116268 TB |
3835 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3836 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3837 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
d62cf3df | 3838 | |
229c5919 TB |
3839 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3840 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3841 | void_type_node, 8, pvoid_type_node, | |
4971dd80 | 3842 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
229c5919 TB |
3843 | NULL_TREE)), |
3844 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3f5fabc0 | 3845 | integer_type_node, size_type_node); |
229c5919 | 3846 | |
d62cf3df | 3847 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
b5116268 TB |
3848 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3849 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3850 | pint_type, pchar_type_node, size_type_node); |
ba85c8c3 AV |
3851 | |
3852 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3853 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3854 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3855 | pvoid_type_node); | |
60386f50 TB |
3856 | } |
3857 | ||
6de9cd9a DN |
3858 | gfc_build_intrinsic_function_decls (); |
3859 | gfc_build_intrinsic_lib_fndecls (); | |
3860 | gfc_build_io_library_fndecls (); | |
3861 | } | |
3862 | ||
3863 | ||
1f2959f0 | 3864 | /* Evaluate the length of dummy character variables. */ |
6de9cd9a | 3865 | |
0019d498 DK |
3866 | static void |
3867 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3868 | gfc_wrapped_block *block) | |
6de9cd9a | 3869 | { |
0019d498 | 3870 | stmtblock_t init; |
6de9cd9a | 3871 | |
faf28b3a | 3872 | gfc_finish_decl (cl->backend_decl); |
6de9cd9a | 3873 | |
0019d498 | 3874 | gfc_start_block (&init); |
6de9cd9a DN |
3875 | |
3876 | /* Evaluate the string length expression. */ | |
0019d498 | 3877 | gfc_conv_string_length (cl, NULL, &init); |
417ab240 | 3878 | |
0019d498 | 3879 | gfc_trans_vla_type_sizes (sym, &init); |
417ab240 | 3880 | |
0019d498 | 3881 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
6de9cd9a DN |
3882 | } |
3883 | ||
3884 | ||
3885 | /* Allocate and cleanup an automatic character variable. */ | |
3886 | ||
0019d498 DK |
3887 | static void |
3888 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
6de9cd9a | 3889 | { |
0019d498 | 3890 | stmtblock_t init; |
6de9cd9a | 3891 | tree decl; |
6de9cd9a DN |
3892 | tree tmp; |
3893 | ||
6e45f57b | 3894 | gcc_assert (sym->backend_decl); |
bc21d315 | 3895 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
6de9cd9a | 3896 | |
323cea66 | 3897 | gfc_init_block (&init); |
6de9cd9a DN |
3898 | |
3899 | /* Evaluate the string length expression. */ | |
0019d498 | 3900 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
6de9cd9a | 3901 | |
0019d498 | 3902 | gfc_trans_vla_type_sizes (sym, &init); |
417ab240 | 3903 | |
6de9cd9a DN |
3904 | decl = sym->backend_decl; |
3905 | ||
1a186ec5 | 3906 | /* Emit a DECL_EXPR for this variable, which will cause the |
4ab2db93 | 3907 | gimplifier to allocate storage, and all that good stuff. */ |
bc98ed60 | 3908 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
0019d498 | 3909 | gfc_add_expr_to_block (&init, tmp); |
1a186ec5 | 3910 | |
0019d498 | 3911 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
6de9cd9a DN |
3912 | } |
3913 | ||
910450c1 FW |
3914 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3915 | ||
0019d498 DK |
3916 | static void |
3917 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
910450c1 | 3918 | { |
0019d498 | 3919 | stmtblock_t init; |
910450c1 FW |
3920 | |
3921 | gcc_assert (sym->backend_decl); | |
0019d498 | 3922 | gfc_start_block (&init); |
910450c1 FW |
3923 | |
3924 | /* Set the initial value to length. See the comments in | |
3925 | function gfc_add_assign_aux_vars in this file. */ | |
0019d498 | 3926 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
df09d1d5 | 3927 | build_int_cst (gfc_charlen_type_node, -2)); |
910450c1 | 3928 | |
0019d498 | 3929 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
910450c1 FW |
3930 | } |
3931 | ||
417ab240 JJ |
3932 | static void |
3933 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3934 | { | |
3935 | tree t = *tp, var, val; | |
3936 | ||
3937 | if (t == NULL || t == error_mark_node) | |
3938 | return; | |
3939 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3940 | return; | |
3941 | ||
3942 | if (TREE_CODE (t) == SAVE_EXPR) | |
3943 | { | |
3944 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3945 | { | |
3946 | *tp = TREE_OPERAND (t, 0); | |
3947 | return; | |
3948 | } | |
3949 | val = TREE_OPERAND (t, 0); | |
3950 | } | |
3951 | else | |
3952 | val = t; | |
3953 | ||
3954 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3955 | gfc_add_decl_to_function (var); | |
7a27d38f | 3956 | gfc_add_modify (body, var, unshare_expr (val)); |
417ab240 JJ |
3957 | if (TREE_CODE (t) == SAVE_EXPR) |
3958 | TREE_OPERAND (t, 0) = var; | |
3959 | *tp = var; | |
3960 | } | |
3961 | ||
3962 | static void | |
3963 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3964 | { | |
3965 | tree t; | |
3966 | ||
3967 | if (type == NULL || type == error_mark_node) | |
3968 | return; | |
3969 | ||
3970 | type = TYPE_MAIN_VARIANT (type); | |
3971 | ||
3972 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3973 | { | |
3974 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3975 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3976 | ||
3977 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3978 | { | |
3979 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3980 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3981 | } | |
3982 | } | |
3983 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3984 | { | |
3985 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3986 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3987 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3988 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3989 | ||
3990 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3991 | { | |
3992 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3993 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3994 | } | |
3995 | } | |
3996 | } | |
3997 | ||
3998 | /* Make sure all type sizes and array domains are either constant, | |
3999 | or variable or parameter decls. This is a simplified variant | |
4000 | of gimplify_type_sizes, but we can't use it here, as none of the | |
4001 | variables in the expressions have been gimplified yet. | |
4002 | As type sizes and domains for various variable length arrays | |
4003 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
4004 | time, without this routine gimplify_type_sizes in the middle-end | |
4005 | could result in the type sizes being gimplified earlier than where | |
4006 | those variables are initialized. */ | |
4007 | ||
4008 | void | |
4009 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
4010 | { | |
4011 | tree type = TREE_TYPE (sym->backend_decl); | |
4012 | ||
4013 | if (TREE_CODE (type) == FUNCTION_TYPE | |
4014 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
4015 | { | |
4016 | if (! current_fake_result_decl) | |
4017 | return; | |
4018 | ||
4019 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
4020 | } | |
4021 | ||
4022 | while (POINTER_TYPE_P (type)) | |
4023 | type = TREE_TYPE (type); | |
4024 | ||
4025 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
4026 | { | |
4027 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
4028 | ||
4029 | while (POINTER_TYPE_P (etype)) | |
4030 | etype = TREE_TYPE (etype); | |
4031 | ||
4032 | gfc_trans_vla_type_sizes_1 (etype, body); | |
4033 | } | |
4034 | ||
4035 | gfc_trans_vla_type_sizes_1 (type, body); | |
4036 | } | |
4037 | ||
6de9cd9a | 4038 | |
b7b184a8 | 4039 | /* Initialize a derived type by building an lvalue from the symbol |
2b56d6a4 TB |
4040 | and using trans_assignment to do the work. Set dealloc to false |
4041 | if no deallocation prior the assignment is needed. */ | |
0019d498 DK |
4042 | void |
4043 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
d3837072 | 4044 | { |
b7b184a8 | 4045 | gfc_expr *e; |
d3837072 PT |
4046 | tree tmp; |
4047 | tree present; | |
4048 | ||
0019d498 DK |
4049 | gcc_assert (block); |
4050 | ||
276515e6 PT |
4051 | /* Initialization of PDTs is done elsewhere. */ |
4052 | if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
4053 | return; | |
4054 | ||
b7b184a8 PT |
4055 | gcc_assert (!sym->attr.allocatable); |
4056 | gfc_set_sym_referenced (sym); | |
4057 | e = gfc_lval_expr_from_sym (sym); | |
2b56d6a4 | 4058 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
ba6f7079 TB |
4059 | if (sym->attr.dummy && (sym->attr.optional |
4060 | || sym->ns->proc_name->attr.entry_master)) | |
d3837072 | 4061 | { |
b7b184a8 | 4062 | present = gfc_conv_expr_present (sym); |
5d44e5c8 TB |
4063 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
4064 | tmp, build_empty_stmt (input_location)); | |
d3837072 | 4065 | } |
0019d498 | 4066 | gfc_add_expr_to_block (block, tmp); |
b7b184a8 | 4067 | gfc_free_expr (e); |
d3837072 PT |
4068 | } |
4069 | ||
4070 | ||
2c69d527 PT |
4071 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
4072 | them their default initializer, if they do not have allocatable | |
1cc0e193 | 4073 | components, they have their allocatable components deallocated. */ |
2c69d527 | 4074 | |
0019d498 DK |
4075 | static void |
4076 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
b7b184a8 | 4077 | { |
0019d498 | 4078 | stmtblock_t init; |
b7b184a8 | 4079 | gfc_formal_arglist *f; |
2c69d527 | 4080 | tree tmp; |
8a272531 | 4081 | tree present; |
b7b184a8 | 4082 | |
0019d498 | 4083 | gfc_init_block (&init); |
4cbc9039 | 4084 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
b7b184a8 | 4085 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
758e12af TB |
4086 | && !f->sym->attr.pointer |
4087 | && f->sym->ts.type == BT_DERIVED) | |
2c69d527 | 4088 | { |
ed3f1ef2 TB |
4089 | tmp = NULL_TREE; |
4090 | ||
4091 | /* Note: Allocatables are excluded as they are already handled | |
4092 | by the caller. */ | |
4093 | if (!f->sym->attr.allocatable | |
4094 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
2c69d527 | 4095 | { |
ed3f1ef2 TB |
4096 | stmtblock_t block; |
4097 | gfc_expr *e; | |
4098 | ||
4099 | gfc_init_block (&block); | |
4100 | f->sym->attr.referenced = 1; | |
4101 | e = gfc_lval_expr_from_sym (f->sym); | |
4102 | gfc_add_finalizer_call (&block, e); | |
4103 | gfc_free_expr (e); | |
4104 | tmp = gfc_finish_block (&block); | |
4105 | } | |
8a272531 | 4106 | |
ed3f1ef2 TB |
4107 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4108 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4109 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4110 | f->sym->backend_decl, | |
4111 | f->sym->as ? f->sym->as->rank : 0); | |
8a272531 | 4112 | |
ed3f1ef2 TB |
4113 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4114 | || f->sym->ns->proc_name->attr.entry_master)) | |
4115 | { | |
4116 | present = gfc_conv_expr_present (f->sym); | |
4117 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4118 | present, tmp, build_empty_stmt (input_location)); | |
2c69d527 | 4119 | } |
ed3f1ef2 TB |
4120 | |
4121 | if (tmp != NULL_TREE) | |
4122 | gfc_add_expr_to_block (&init, tmp); | |
4123 | else if (f->sym->value && !f->sym->attr.allocatable) | |
0019d498 | 4124 | gfc_init_default_dt (f->sym, &init, true); |
2c69d527 | 4125 | } |
c7f17815 JW |
4126 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4127 | && f->sym->ts.type == BT_CLASS | |
4128 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
ed3f1ef2 | 4129 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c7f17815 | 4130 | { |
ed3f1ef2 TB |
4131 | stmtblock_t block; |
4132 | gfc_expr *e; | |
4133 | ||
4134 | gfc_init_block (&block); | |
4135 | f->sym->attr.referenced = 1; | |
4136 | e = gfc_lval_expr_from_sym (f->sym); | |
4137 | gfc_add_finalizer_call (&block, e); | |
4138 | gfc_free_expr (e); | |
4139 | tmp = gfc_finish_block (&block); | |
c7f17815 JW |
4140 | |
4141 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4142 | { | |
4143 | present = gfc_conv_expr_present (f->sym); | |
4144 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4145 | present, tmp, | |
4146 | build_empty_stmt (input_location)); | |
4147 | } | |
4148 | ||
4149 | gfc_add_expr_to_block (&init, tmp); | |
4150 | } | |
b7b184a8 | 4151 | |
0019d498 | 4152 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
b7b184a8 PT |
4153 | } |
4154 | ||
d3837072 | 4155 | |
ce1ff48e PT |
4156 | /* Helper function to manage deferred string lengths. */ |
4157 | ||
4158 | static tree | |
4159 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4160 | locus *loc) | |
4161 | { | |
4162 | tree tmp; | |
4163 | ||
4164 | /* Character length passed by reference. */ | |
4165 | tmp = sym->ts.u.cl->passed_length; | |
4166 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4167 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4168 | ||
4169 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4170 | /* Zero the string length when entering the scope. */ | |
4171 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4172 | build_int_cst (gfc_charlen_type_node, 0)); | |
4173 | else | |
4174 | { | |
4175 | tree tmp2; | |
4176 | ||
4177 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4178 | gfc_charlen_type_node, | |
4179 | sym->ts.u.cl->backend_decl, tmp); | |
4180 | if (sym->attr.optional) | |
4181 | { | |
4182 | tree present = gfc_conv_expr_present (sym); | |
4183 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4184 | void_type_node, present, tmp2, | |
4185 | build_empty_stmt (input_location)); | |
4186 | } | |
4187 | gfc_add_expr_to_block (init, tmp2); | |
4188 | } | |
4189 | ||
4190 | gfc_restore_backend_locus (loc); | |
4191 | ||
4192 | /* Pass the final character length back. */ | |
4193 | if (sym->attr.intent != INTENT_IN) | |
4194 | { | |
4195 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4196 | gfc_charlen_type_node, tmp, | |
4197 | sym->ts.u.cl->backend_decl); | |
4198 | if (sym->attr.optional) | |
4199 | { | |
4200 | tree present = gfc_conv_expr_present (sym); | |
4201 | tmp = build3_loc (input_location, COND_EXPR, | |
4202 | void_type_node, present, tmp, | |
4203 | build_empty_stmt (input_location)); | |
4204 | } | |
4205 | } | |
4206 | else | |
4207 | tmp = NULL_TREE; | |
4208 | ||
4209 | return tmp; | |
4210 | } | |
4211 | ||
a6b22eea PT |
4212 | |
4213 | /* Get the result expression for a procedure. */ | |
4214 | ||
4215 | static tree | |
4216 | get_proc_result (gfc_symbol* sym) | |
4217 | { | |
4218 | if (sym->attr.subroutine || sym == sym->result) | |
4219 | { | |
4220 | if (current_fake_result_decl != NULL) | |
4221 | return TREE_VALUE (current_fake_result_decl); | |
4222 | ||
4223 | return NULL_TREE; | |
4224 | } | |
4225 | ||
4226 | return sym->result->backend_decl; | |
4227 | } | |
4228 | ||
4229 | ||
6de9cd9a DN |
4230 | /* Generate function entry and exit code, and add it to the function body. |
4231 | This includes: | |
f8d0aee5 | 4232 | Allocation and initialization of array variables. |
6de9cd9a | 4233 | Allocation of character string variables. |
910450c1 | 4234 | Initialization and possibly repacking of dummy arrays. |
1517fd57 | 4235 | Initialization of ASSIGN statement auxiliary variable. |
571d54de | 4236 | Initialization of ASSOCIATE names. |
1517fd57 | 4237 | Automatic deallocation. */ |
6de9cd9a | 4238 | |
d74d8807 DK |
4239 | void |
4240 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
6de9cd9a DN |
4241 | { |
4242 | locus loc; | |
4243 | gfc_symbol *sym; | |
417ab240 | 4244 | gfc_formal_arglist *f; |
0019d498 | 4245 | stmtblock_t tmpblock; |
7114edca | 4246 | bool seen_trans_deferred_array = false; |
5bab4c96 | 4247 | bool is_pdt_type = false; |
8d51f26f PT |
4248 | tree tmp = NULL; |
4249 | gfc_expr *e; | |
4250 | gfc_se se; | |
4251 | stmtblock_t init; | |
6de9cd9a DN |
4252 | |
4253 | /* Deal with implicit return variables. Explicit return variables will | |
4254 | already have been added. */ | |
4255 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4256 | { | |
4257 | if (!current_fake_result_decl) | |
4258 | { | |
d198b59a JJ |
4259 | gfc_entry_list *el = NULL; |
4260 | if (proc_sym->attr.entry_master) | |
4261 | { | |
4262 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4263 | if (el->sym != el->sym->result) | |
4264 | break; | |
4265 | } | |
766d0c8c | 4266 | /* TODO: move to the appropriate place in resolve.c. */ |
134d2354 | 4267 | if (warn_return_type > 0 && el == NULL) |
48749dbc MLI |
4268 | gfc_warning (OPT_Wreturn_type, |
4269 | "Return value of function %qs at %L not set", | |
766d0c8c | 4270 | proc_sym->name, &proc_sym->declared_at); |
6de9cd9a | 4271 | } |
d198b59a | 4272 | else if (proc_sym->as) |
6de9cd9a | 4273 | { |
417ab240 | 4274 | tree result = TREE_VALUE (current_fake_result_decl); |
8e9218f2 AV |
4275 | gfc_save_backend_locus (&loc); |
4276 | gfc_set_backend_locus (&proc_sym->declared_at); | |
d74d8807 | 4277 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
f5f701ad PT |
4278 | |
4279 | /* An automatic character length, pointer array result. */ | |
4280 | if (proc_sym->ts.type == BT_CHARACTER | |
d168c883 | 4281 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
ce1ff48e PT |
4282 | { |
4283 | tmp = NULL; | |
4284 | if (proc_sym->ts.deferred) | |
4285 | { | |
ce1ff48e PT |
4286 | gfc_start_block (&init); |
4287 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4288 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4289 | } | |
4290 | else | |
4291 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4292 | } | |
6de9cd9a DN |
4293 | } |
4294 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4295 | { | |
8d51f26f PT |
4296 | if (proc_sym->ts.deferred) |
4297 | { | |
4298 | tmp = NULL; | |
ceccaacf TB |
4299 | gfc_save_backend_locus (&loc); |
4300 | gfc_set_backend_locus (&proc_sym->declared_at); | |
8d51f26f PT |
4301 | gfc_start_block (&init); |
4302 | /* Zero the string length on entry. */ | |
4303 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4304 | build_int_cst (gfc_charlen_type_node, 0)); | |
4305 | /* Null the pointer. */ | |
4306 | e = gfc_lval_expr_from_sym (proc_sym); | |
4307 | gfc_init_se (&se, NULL); | |
4308 | se.want_pointer = 1; | |
4309 | gfc_conv_expr (&se, e); | |
4310 | gfc_free_expr (e); | |
4311 | tmp = se.expr; | |
4312 | gfc_add_modify (&init, tmp, | |
4313 | fold_convert (TREE_TYPE (se.expr), | |
4314 | null_pointer_node)); | |
ceccaacf | 4315 | gfc_restore_backend_locus (&loc); |
8d51f26f PT |
4316 | |
4317 | /* Pass back the string length on exit. */ | |
afbc5ae8 | 4318 | tmp = proc_sym->ts.u.cl->backend_decl; |
ce1ff48e PT |
4319 | if (TREE_CODE (tmp) != INDIRECT_REF |
4320 | && proc_sym->ts.u.cl->passed_length) | |
afbc5ae8 | 4321 | { |
b62df3bf PT |
4322 | tmp = proc_sym->ts.u.cl->passed_length; |
4323 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
b62df3bf | 4324 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f622221a JB |
4325 | TREE_TYPE (tmp), tmp, |
4326 | fold_convert | |
4327 | (TREE_TYPE (tmp), | |
4328 | proc_sym->ts.u.cl->backend_decl)); | |
afbc5ae8 PT |
4329 | } |
4330 | else | |
4331 | tmp = NULL_TREE; | |
4332 | ||
8d51f26f PT |
4333 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4334 | } | |
d168c883 | 4335 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
d74d8807 | 4336 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
6de9cd9a DN |
4337 | } |
4338 | else | |
c61819ff | 4339 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
6de9cd9a | 4340 | } |
a6b22eea PT |
4341 | else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym)) |
4342 | { | |
4343 | /* Nullify explicit return class arrays on entry. */ | |
4344 | tree type; | |
4345 | tmp = get_proc_result (proc_sym); | |
4346 | if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp))) | |
4347 | { | |
4348 | gfc_start_block (&init); | |
4349 | tmp = gfc_class_data_get (tmp); | |
4350 | type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp)); | |
4351 | gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0)); | |
4352 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); | |
4353 | } | |
4354 | } | |
4355 | ||
6de9cd9a | 4356 | |
d3837072 PT |
4357 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4358 | should be done here so that the offsets and lbounds of arrays | |
4359 | are available. */ | |
ceccaacf TB |
4360 | gfc_save_backend_locus (&loc); |
4361 | gfc_set_backend_locus (&proc_sym->declared_at); | |
d74d8807 | 4362 | init_intent_out_dt (proc_sym, block); |
ceccaacf | 4363 | gfc_restore_backend_locus (&loc); |
d3837072 | 4364 | |
6de9cd9a DN |
4365 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4366 | { | |
ea8b72e6 TB |
4367 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4368 | && (sym->ts.u.derived->attr.alloc_comp | |
4369 | || gfc_is_finalizable (sym->ts.u.derived, | |
4370 | NULL)); | |
571d54de | 4371 | if (sym->assoc) |
6312ef45 JW |
4372 | continue; |
4373 | ||
5bab4c96 PT |
4374 | if (sym->ts.type == BT_DERIVED |
4375 | && sym->ts.u.derived | |
4376 | && sym->ts.u.derived->attr.pdt_type) | |
4377 | { | |
4378 | is_pdt_type = true; | |
4379 | gfc_init_block (&tmpblock); | |
4380 | if (!(sym->attr.dummy | |
4381 | || sym->attr.pointer | |
4382 | || sym->attr.allocatable)) | |
4383 | { | |
4384 | tmp = gfc_allocate_pdt_comp (sym->ts.u.derived, | |
4385 | sym->backend_decl, | |
4386 | sym->as ? sym->as->rank : 0, | |
4387 | sym->param_list); | |
4388 | gfc_add_expr_to_block (&tmpblock, tmp); | |
96acdb8d PT |
4389 | if (!sym->attr.result) |
4390 | tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived, | |
4391 | sym->backend_decl, | |
4392 | sym->as ? sym->as->rank : 0); | |
4393 | else | |
4394 | tmp = NULL_TREE; | |
5bab4c96 PT |
4395 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4396 | } | |
4397 | else if (sym->attr.dummy) | |
4398 | { | |
4399 | tmp = gfc_check_pdt_dummy (sym->ts.u.derived, | |
4400 | sym->backend_decl, | |
4401 | sym->as ? sym->as->rank : 0, | |
4402 | sym->param_list); | |
4403 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4404 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4405 | } | |
4406 | } | |
4407 | else if (sym->ts.type == BT_CLASS | |
4408 | && CLASS_DATA (sym)->ts.u.derived | |
4409 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type) | |
4410 | { | |
4411 | gfc_component *data = CLASS_DATA (sym); | |
4412 | is_pdt_type = true; | |
4413 | gfc_init_block (&tmpblock); | |
4414 | if (!(sym->attr.dummy | |
4415 | || CLASS_DATA (sym)->attr.pointer | |
4416 | || CLASS_DATA (sym)->attr.allocatable)) | |
4417 | { | |
4418 | tmp = gfc_class_data_get (sym->backend_decl); | |
4419 | tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp, | |
4420 | data->as ? data->as->rank : 0, | |
4421 | sym->param_list); | |
4422 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4423 | tmp = gfc_class_data_get (sym->backend_decl); | |
96acdb8d PT |
4424 | if (!sym->attr.result) |
4425 | tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp, | |
4426 | data->as ? data->as->rank : 0); | |
4427 | else | |
4428 | tmp = NULL_TREE; | |
5bab4c96 PT |
4429 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4430 | } | |
4431 | else if (sym->attr.dummy) | |
4432 | { | |
4433 | tmp = gfc_class_data_get (sym->backend_decl); | |
4434 | tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp, | |
4435 | data->as ? data->as->rank : 0, | |
4436 | sym->param_list); | |
4437 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4438 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4439 | } | |
4440 | } | |
4441 | ||
ff3598bc | 4442 | if (sym->attr.pointer && sym->attr.dimension |
22d07ec2 | 4443 | && sym->attr.save == SAVE_NONE |
ff3598bc PT |
4444 | && !sym->attr.use_assoc |
4445 | && !sym->attr.host_assoc | |
4446 | && !sym->attr.dummy | |
4447 | && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))) | |
0c1e1df8 JJ |
4448 | { |
4449 | gfc_init_block (&tmpblock); | |
ff3598bc PT |
4450 | gfc_conv_descriptor_span_set (&tmpblock, sym->backend_decl, |
4451 | build_int_cst (gfc_array_index_type, 0)); | |
0c1e1df8 JJ |
4452 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
4453 | NULL_TREE); | |
4454 | } | |
4455 | ||
e1e3b9d3 | 4456 | if (sym->ts.type == BT_CLASS |
203c7ebf | 4457 | && (sym->attr.save || flag_max_stack_var_size == 0) |
f118468a TB |
4458 | && CLASS_DATA (sym)->attr.allocatable) |
4459 | { | |
4460 | tree vptr; | |
4461 | ||
4462 | if (UNLIMITED_POLY (sym)) | |
4463 | vptr = null_pointer_node; | |
4464 | else | |
4465 | { | |
4466 | gfc_symbol *vsym; | |
4467 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4468 | vptr = gfc_get_symbol_decl (vsym); | |
4469 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4470 | } | |
4471 | ||
4472 | if (CLASS_DATA (sym)->attr.dimension | |
4473 | || (CLASS_DATA (sym)->attr.codimension | |
f19626cf | 4474 | && flag_coarray != GFC_FCOARRAY_LIB)) |
f118468a TB |
4475 | { |
4476 | tmp = gfc_class_data_get (sym->backend_decl); | |
4477 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4478 | } | |
4479 | else | |
4480 | tmp = null_pointer_node; | |
4481 | ||
4482 | DECL_INITIAL (sym->backend_decl) | |
4483 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4484 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4485 | } | |
ce1ff48e PT |
4486 | else if ((sym->attr.dimension || sym->attr.codimension |
4487 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
6de9cd9a | 4488 | { |
f3b0bb7a AV |
4489 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4490 | symbol_attribute *array_attr; | |
4491 | gfc_array_spec *as; | |
ce1ff48e | 4492 | array_type type_of_array; |
f3b0bb7a AV |
4493 | |
4494 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4495 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4496 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
ce1ff48e PT |
4497 | type_of_array = as->type; |
4498 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4499 | type_of_array = AS_EXPLICIT; | |
4500 | switch (type_of_array) | |
6de9cd9a DN |
4501 | { |
4502 | case AS_EXPLICIT: | |
4503 | if (sym->attr.dummy || sym->attr.result) | |
d74d8807 | 4504 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
f3b0bb7a AV |
4505 | /* Allocatable and pointer arrays need to processed |
4506 | explicitly. */ | |
4507 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4508 | || (sym->ts.type == BT_CLASS | |
4509 | && CLASS_DATA (sym)->attr.class_pointer) | |
4510 | || array_attr->allocatable) | |
6de9cd9a DN |
4511 | { |
4512 | if (TREE_STATIC (sym->backend_decl)) | |
ceccaacf TB |
4513 | { |
4514 | gfc_save_backend_locus (&loc); | |
4515 | gfc_set_backend_locus (&sym->declared_at); | |
4516 | gfc_trans_static_array_pointer (sym); | |
4517 | gfc_restore_backend_locus (&loc); | |
4518 | } | |
6de9cd9a | 4519 | else |
7114edca PT |
4520 | { |
4521 | seen_trans_deferred_array = true; | |
d74d8807 | 4522 | gfc_trans_deferred_array (sym, block); |
7114edca | 4523 | } |
6de9cd9a | 4524 | } |
f3b0bb7a AV |
4525 | else if (sym->attr.codimension |
4526 | && TREE_STATIC (sym->backend_decl)) | |
9f3761c5 TB |
4527 | { |
4528 | gfc_init_block (&tmpblock); | |
4529 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4530 | &tmpblock, sym); | |
4531 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4532 | NULL_TREE); | |
4533 | continue; | |
4534 | } | |
b0936265 | 4535 | else |
6de9cd9a | 4536 | { |
ceccaacf TB |
4537 | gfc_save_backend_locus (&loc); |
4538 | gfc_set_backend_locus (&sym->declared_at); | |
4539 | ||
ea8b72e6 | 4540 | if (alloc_comp_or_fini) |
7114edca PT |
4541 | { |
4542 | seen_trans_deferred_array = true; | |
d74d8807 | 4543 | gfc_trans_deferred_array (sym, block); |
7114edca | 4544 | } |
b7b184a8 PT |
4545 | else if (sym->ts.type == BT_DERIVED |
4546 | && sym->value | |
4547 | && !sym->attr.data | |
4548 | && sym->attr.save == SAVE_NONE) | |
0019d498 DK |
4549 | { |
4550 | gfc_start_block (&tmpblock); | |
4551 | gfc_init_default_dt (sym, &tmpblock, false); | |
d74d8807 | 4552 | gfc_add_init_cleanup (block, |
0019d498 DK |
4553 | gfc_finish_block (&tmpblock), |
4554 | NULL_TREE); | |
4555 | } | |
7114edca | 4556 | |
0019d498 | 4557 | gfc_trans_auto_array_allocation (sym->backend_decl, |
d74d8807 | 4558 | sym, block); |
363aab21 | 4559 | gfc_restore_backend_locus (&loc); |
6de9cd9a DN |
4560 | } |
4561 | break; | |
4562 | ||
4563 | case AS_ASSUMED_SIZE: | |
4564 | /* Must be a dummy parameter. */ | |
f3b0bb7a | 4565 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
6de9cd9a DN |
4566 | |
4567 | /* We should always pass assumed size arrays the g77 way. */ | |
b3aefde2 | 4568 | if (sym->attr.dummy) |
d74d8807 | 4569 | gfc_trans_g77_array (sym, block); |
0019d498 | 4570 | break; |
6de9cd9a DN |
4571 | |
4572 | case AS_ASSUMED_SHAPE: | |
4573 | /* Must be a dummy parameter. */ | |
6e45f57b | 4574 | gcc_assert (sym->attr.dummy); |
6de9cd9a | 4575 | |
d74d8807 | 4576 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
6de9cd9a DN |
4577 | break; |
4578 | ||
c62c6622 | 4579 | case AS_ASSUMED_RANK: |
6de9cd9a | 4580 | case AS_DEFERRED: |
7114edca | 4581 | seen_trans_deferred_array = true; |
d74d8807 | 4582 | gfc_trans_deferred_array (sym, block); |
ce1ff48e PT |
4583 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4584 | && sym->attr.result) | |
4585 | { | |
4586 | gfc_start_block (&init); | |
4587 | gfc_save_backend_locus (&loc); | |
4588 | gfc_set_backend_locus (&sym->declared_at); | |
4589 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4590 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4591 | } | |
6de9cd9a DN |
4592 | break; |
4593 | ||
4594 | default: | |
6e45f57b | 4595 | gcc_unreachable (); |
6de9cd9a | 4596 | } |
ea8b72e6 | 4597 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
d74d8807 | 4598 | gfc_trans_deferred_array (sym, block); |
6de9cd9a | 4599 | } |
c49ea23d PT |
4600 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4601 | && (sym->ts.type == BT_CLASS | |
102344e2 | 4602 | && CLASS_DATA (sym)->attr.class_pointer)) |
1b26c26b | 4603 | continue; |
8d51f26f | 4604 | else if ((!sym->attr.dummy || sym->ts.deferred) |
25cbe58f | 4605 | && (sym->attr.allocatable |
ce1ff48e | 4606 | || (sym->attr.pointer && sym->attr.result) |
25cbe58f TB |
4607 | || (sym->ts.type == BT_CLASS |
4608 | && CLASS_DATA (sym)->attr.allocatable))) | |
1517fd57 | 4609 | { |
203c7ebf | 4610 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
64b33a7e | 4611 | { |
5d81ddd0 TB |
4612 | tree descriptor = NULL_TREE; |
4613 | ||
ceccaacf TB |
4614 | gfc_save_backend_locus (&loc); |
4615 | gfc_set_backend_locus (&sym->declared_at); | |
0019d498 | 4616 | gfc_start_block (&init); |
8d51f26f | 4617 | |
ce1ff48e | 4618 | if (!sym->attr.pointer) |
8d51f26f | 4619 | { |
ce1ff48e PT |
4620 | /* Nullify and automatic deallocation of allocatable |
4621 | scalars. */ | |
4622 | e = gfc_lval_expr_from_sym (sym); | |
4623 | if (sym->ts.type == BT_CLASS) | |
4624 | gfc_add_data_component (e); | |
4625 | ||
4626 | gfc_init_se (&se, NULL); | |
4627 | if (sym->ts.type != BT_CLASS | |
4628 | || sym->ts.u.derived->attr.dimension | |
4629 | || sym->ts.u.derived->attr.codimension) | |
48f316ea | 4630 | { |
ce1ff48e PT |
4631 | se.want_pointer = 1; |
4632 | gfc_conv_expr (&se, e); | |
4633 | } | |
4634 | else if (sym->ts.type == BT_CLASS | |
4635 | && !CLASS_DATA (sym)->attr.dimension | |
4636 | && !CLASS_DATA (sym)->attr.codimension) | |
4637 | { | |
4638 | se.want_pointer = 1; | |
4639 | gfc_conv_expr (&se, e); | |
48f316ea | 4640 | } |
8d51f26f | 4641 | else |
48f316ea | 4642 | { |
ce1ff48e PT |
4643 | se.descriptor_only = 1; |
4644 | gfc_conv_expr (&se, e); | |
4645 | descriptor = se.expr; | |
4646 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4647 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
48f316ea | 4648 | } |
ce1ff48e | 4649 | gfc_free_expr (e); |
8d51f26f | 4650 | |
ce1ff48e | 4651 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
48f316ea | 4652 | { |
ce1ff48e | 4653 | /* Nullify when entering the scope. */ |
48f316ea | 4654 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
ce1ff48e PT |
4655 | TREE_TYPE (se.expr), se.expr, |
4656 | fold_convert (TREE_TYPE (se.expr), | |
4657 | null_pointer_node)); | |
48f316ea TB |
4658 | if (sym->attr.optional) |
4659 | { | |
4660 | tree present = gfc_conv_expr_present (sym); | |
4661 | tmp = build3_loc (input_location, COND_EXPR, | |
4662 | void_type_node, present, tmp, | |
4663 | build_empty_stmt (input_location)); | |
4664 | } | |
ce1ff48e | 4665 | gfc_add_expr_to_block (&init, tmp); |
48f316ea | 4666 | } |
8d51f26f | 4667 | } |
ce1ff48e PT |
4668 | |
4669 | if ((sym->attr.dummy || sym->attr.result) | |
4670 | && sym->ts.type == BT_CHARACTER | |
4671 | && sym->ts.deferred | |
4672 | && sym->ts.u.cl->passed_length) | |
4673 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
ceccaacf | 4674 | else |
77dacf9d PT |
4675 | { |
4676 | gfc_restore_backend_locus (&loc); | |
4677 | tmp = NULL_TREE; | |
4678 | } | |
64b33a7e TB |
4679 | |
4680 | /* Deallocate when leaving the scope. Nullifying is not | |
4681 | needed. */ | |
ce1ff48e | 4682 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
ef292537 | 4683 | && !sym->ns->proc_name->attr.is_main_program) |
5d81ddd0 TB |
4684 | { |
4685 | if (sym->ts.type == BT_CLASS | |
4686 | && CLASS_DATA (sym)->attr.codimension) | |
4687 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4688 | NULL_TREE, NULL_TREE, | |
4689 | NULL_TREE, true, NULL, | |
ba85c8c3 | 4690 | GFC_CAF_COARRAY_ANALYZE); |
5d81ddd0 | 4691 | else |
76c1a7ec TB |
4692 | { |
4693 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
ba85c8c3 AV |
4694 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4695 | NULL_TREE, | |
4696 | NULL_TREE, | |
4697 | true, expr, | |
4698 | sym->ts); | |
76c1a7ec TB |
4699 | gfc_free_expr (expr); |
4700 | } | |
5d81ddd0 | 4701 | } |
ce1ff48e | 4702 | |
8c077737 JW |
4703 | if (sym->ts.type == BT_CLASS) |
4704 | { | |
4705 | /* Initialize _vptr to declared type. */ | |
8b704316 | 4706 | gfc_symbol *vtab; |
8c077737 | 4707 | tree rhs; |
ceccaacf TB |
4708 | |
4709 | gfc_save_backend_locus (&loc); | |
4710 | gfc_set_backend_locus (&sym->declared_at); | |
8c077737 JW |
4711 | e = gfc_lval_expr_from_sym (sym); |
4712 | gfc_add_vptr_component (e); | |
4713 | gfc_init_se (&se, NULL); | |
4714 | se.want_pointer = 1; | |
4715 | gfc_conv_expr (&se, e); | |
4716 | gfc_free_expr (e); | |
8b704316 PT |
4717 | if (UNLIMITED_POLY (sym)) |
4718 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4719 | else | |
4720 | { | |
4721 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4722 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4723 | gfc_get_symbol_decl (vtab)); | |
4724 | } | |
8c077737 | 4725 | gfc_add_modify (&init, se.expr, rhs); |
ceccaacf | 4726 | gfc_restore_backend_locus (&loc); |
8c077737 JW |
4727 | } |
4728 | ||
d74d8807 | 4729 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
64b33a7e | 4730 | } |
1517fd57 | 4731 | } |
8d51f26f PT |
4732 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4733 | { | |
4734 | tree tmp = NULL; | |
4735 | stmtblock_t init; | |
4736 | ||
4737 | /* If we get to here, all that should be left are pointers. */ | |
4738 | gcc_assert (sym->attr.pointer); | |
4739 | ||
4740 | if (sym->attr.dummy) | |
4741 | { | |
4742 | gfc_start_block (&init); | |
ce1ff48e PT |
4743 | gfc_save_backend_locus (&loc); |
4744 | gfc_set_backend_locus (&sym->declared_at); | |
4745 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
8d51f26f PT |
4746 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4747 | } | |
4748 | } | |
e69afb29 SK |
4749 | else if (sym->ts.deferred) |
4750 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
ea8b72e6 | 4751 | else if (alloc_comp_or_fini) |
d74d8807 | 4752 | gfc_trans_deferred_array (sym, block); |
6de9cd9a DN |
4753 | else if (sym->ts.type == BT_CHARACTER) |
4754 | { | |
363aab21 | 4755 | gfc_save_backend_locus (&loc); |
6de9cd9a DN |
4756 | gfc_set_backend_locus (&sym->declared_at); |
4757 | if (sym->attr.dummy || sym->attr.result) | |
d74d8807 | 4758 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
6de9cd9a | 4759 | else |
d74d8807 | 4760 | gfc_trans_auto_character_variable (sym, block); |
363aab21 | 4761 | gfc_restore_backend_locus (&loc); |
6de9cd9a | 4762 | } |
910450c1 FW |
4763 | else if (sym->attr.assign) |
4764 | { | |
363aab21 | 4765 | gfc_save_backend_locus (&loc); |
910450c1 | 4766 | gfc_set_backend_locus (&sym->declared_at); |
d74d8807 | 4767 | gfc_trans_assign_aux_var (sym, block); |
363aab21 | 4768 | gfc_restore_backend_locus (&loc); |
910450c1 | 4769 | } |
b7b184a8 PT |
4770 | else if (sym->ts.type == BT_DERIVED |
4771 | && sym->value | |
4772 | && !sym->attr.data | |
4773 | && sym->attr.save == SAVE_NONE) | |
0019d498 DK |
4774 | { |
4775 | gfc_start_block (&tmpblock); | |
4776 | gfc_init_default_dt (sym, &tmpblock, false); | |
d74d8807 | 4777 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
0019d498 DK |
4778 | NULL_TREE); |
4779 | } | |
5bab4c96 | 4780 | else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type) |
6e45f57b | 4781 | gcc_unreachable (); |
6de9cd9a DN |
4782 | } |
4783 | ||
0019d498 | 4784 | gfc_init_block (&tmpblock); |
417ab240 | 4785 | |
4cbc9039 | 4786 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
08113c73 PT |
4787 | { |
4788 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4789 | { | |
bc21d315 JW |
4790 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4791 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
0019d498 | 4792 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
08113c73 | 4793 | } |
08113c73 | 4794 | } |
417ab240 JJ |
4795 | |
4796 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4797 | && current_fake_result_decl != NULL) | |
4798 | { | |
bc21d315 JW |
4799 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4800 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
0019d498 | 4801 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
417ab240 JJ |
4802 | } |
4803 | ||
d74d8807 | 4804 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
6de9cd9a DN |
4805 | } |
4806 | ||
ce1ff48e | 4807 | |
ca752f39 | 4808 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
a64f5186 | 4809 | { |
2a22f99c | 4810 | typedef const char *compare_type; |
a64f5186 | 4811 | |
2a22f99c TS |
4812 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4813 | static bool | |
4814 | equal (module_htab_entry *a, const char *b) | |
4815 | { | |
4816 | return !strcmp (a->name, b); | |
4817 | } | |
4818 | }; | |
4819 | ||
4820 | static GTY (()) hash_table<module_hasher> *module_htab; | |
a64f5186 JJ |
4821 | |
4822 | /* Hash and equality functions for module_htab's decls. */ | |
4823 | ||
2a22f99c TS |
4824 | hashval_t |
4825 | module_decl_hasher::hash (tree t) | |
a64f5186 | 4826 | { |
a64f5186 JJ |
4827 | const_tree n = DECL_NAME (t); |
4828 | if (n == NULL_TREE) | |
4829 | n = TYPE_NAME (TREE_TYPE (t)); | |
afdda4b4 | 4830 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
a64f5186 JJ |
4831 | } |
4832 | ||
2a22f99c TS |
4833 | bool |
4834 | module_decl_hasher::equal (tree t1, const char *x2) | |
a64f5186 | 4835 | { |
a64f5186 JJ |
4836 | const_tree n1 = DECL_NAME (t1); |
4837 | if (n1 == NULL_TREE) | |
4838 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2a22f99c | 4839 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
a64f5186 JJ |
4840 | } |
4841 | ||
4842 | struct module_htab_entry * | |
4843 | gfc_find_module (const char *name) | |
4844 | { | |
a64f5186 | 4845 | if (! module_htab) |
2a22f99c | 4846 | module_htab = hash_table<module_hasher>::create_ggc (10); |
a64f5186 | 4847 | |
2a22f99c TS |
4848 | module_htab_entry **slot |
4849 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
a64f5186 JJ |
4850 | if (*slot == NULL) |
4851 | { | |
766090c2 | 4852 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
a64f5186 | 4853 | |
51f03c6b | 4854 | entry->name = gfc_get_string ("%s", name); |
2a22f99c TS |
4855 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4856 | *slot = entry; | |
a64f5186 | 4857 | } |
2a22f99c | 4858 | return *slot; |
a64f5186 JJ |
4859 | } |
4860 | ||
4861 | void | |
4862 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4863 | { | |
a64f5186 JJ |
4864 | const char *name; |
4865 | ||
4866 | if (DECL_NAME (decl)) | |
4867 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4868 | else | |
4869 | { | |
4870 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4871 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4872 | } | |
2a22f99c TS |
4873 | tree *slot |
4874 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4875 | INSERT); | |
a64f5186 | 4876 | if (*slot == NULL) |
2a22f99c | 4877 | *slot = decl; |
a64f5186 JJ |
4878 | } |
4879 | ||
5f673c6a TB |
4880 | |
4881 | /* Generate debugging symbols for namelists. This function must come after | |
4882 | generate_local_decl to ensure that the variables in the namelist are | |
4883 | already declared. */ | |
4884 | ||
4885 | static tree | |
4886 | generate_namelist_decl (gfc_symbol * sym) | |
4887 | { | |
4888 | gfc_namelist *nml; | |
4889 | tree decl; | |
4890 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4891 | ||
4892 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4893 | for (nml = sym->namelist; nml; nml = nml->next) | |
4894 | { | |
4895 | if (nml->sym->backend_decl == NULL_TREE) | |
4896 | { | |
4897 | nml->sym->attr.referenced = 1; | |
4898 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4899 | } | |
96d91784 | 4900 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
5f673c6a TB |
4901 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4902 | } | |
4903 | ||
4904 | decl = make_node (NAMELIST_DECL); | |
4905 | TREE_TYPE (decl) = void_type_node; | |
4906 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4907 | DECL_NAME (decl) = get_identifier (sym->name); | |
4908 | return decl; | |
4909 | } | |
4910 | ||
4911 | ||
6de9cd9a DN |
4912 | /* Output an initialized decl for a module variable. */ |
4913 | ||
4914 | static void | |
4915 | gfc_create_module_variable (gfc_symbol * sym) | |
4916 | { | |
4917 | tree decl; | |
6de9cd9a | 4918 | |
1a492601 PT |
4919 | /* Module functions with alternate entries are dealt with later and |
4920 | would get caught by the next condition. */ | |
4921 | if (sym->attr.entry) | |
4922 | return; | |
4923 | ||
a8b3b0b6 CR |
4924 | /* Make sure we convert the types of the derived types from iso_c_binding |
4925 | into (void *). */ | |
4926 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4927 | && sym->ts.type == BT_DERIVED) | |
4928 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4929 | ||
f6288c24 | 4930 | if (gfc_fl_struct (sym->attr.flavor) |
a64f5186 JJ |
4931 | && sym->backend_decl |
4932 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4933 | { | |
4934 | decl = sym->backend_decl; | |
4935 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
b8849663 | 4936 | |
cded7919 | 4937 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
b8849663 PT |
4938 | { |
4939 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4940 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4941 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4942 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4943 | == sym->ns->proc_name->backend_decl); | |
4944 | } | |
a64f5186 JJ |
4945 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4946 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4947 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4948 | } | |
4949 | ||
6e0d2de7 JW |
4950 | /* Only output variables, procedure pointers and array valued, |
4951 | or derived type, parameters. */ | |
6de9cd9a | 4952 | if (sym->attr.flavor != FL_VARIABLE |
fdc55763 | 4953 | && !(sym->attr.flavor == FL_PARAMETER |
6e0d2de7 JW |
4954 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4955 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
6de9cd9a DN |
4956 | return; |
4957 | ||
a64f5186 JJ |
4958 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4959 | { | |
4960 | decl = sym->backend_decl; | |
e5b16755 | 4961 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
a64f5186 JJ |
4962 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4963 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4964 | gfc_module_add_decl (cur_module, decl); | |
4965 | } | |
4966 | ||
9cbf8b41 | 4967 | /* Don't generate variables from other modules. Variables from |
f84c6bd9 | 4968 | COMMONs and Cray pointees will already have been generated. */ |
cded7919 PT |
4969 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4970 | || sym->attr.in_common || sym->attr.cray_pointee) | |
6de9cd9a DN |
4971 | return; |
4972 | ||
30aabb86 | 4973 | /* Equivalenced variables arrive here after creation. */ |
b95605fb | 4974 | if (sym->backend_decl |
a64f5186 JJ |
4975 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4976 | return; | |
30aabb86 | 4977 | |
80f95228 | 4978 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
17d5d49f TB |
4979 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4980 | sym->name); | |
6de9cd9a | 4981 | |
38945cfe TK |
4982 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4983 | && (sym->attr.access == ACCESS_UNKNOWN | |
4984 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4985 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
c61819ff | 4986 | && flag_module_private)))) |
38945cfe TK |
4987 | sym->attr.access = ACCESS_PRIVATE; |
4988 | ||
4989 | if (warn_unused_variable && !sym->attr.referenced | |
4990 | && sym->attr.access == ACCESS_PRIVATE) | |
48749dbc MLI |
4991 | gfc_warning (OPT_Wunused_value, |
4992 | "Unused PRIVATE module variable %qs declared at %L", | |
38945cfe TK |
4993 | sym->name, &sym->declared_at); |
4994 | ||
6de9cd9a DN |
4995 | /* We always want module variables to be created. */ |
4996 | sym->attr.referenced = 1; | |
4997 | /* Create the decl. */ | |
4998 | decl = gfc_get_symbol_decl (sym); | |
4999 | ||
6de9cd9a DN |
5000 | /* Create the variable. */ |
5001 | pushdecl (decl); | |
345bd7eb PT |
5002 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
5003 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
5004 | && sym->fn_result_spec)); | |
a64f5186 | 5005 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
0e6df31e | 5006 | rest_of_decl_compilation (decl, 1, 0); |
a64f5186 | 5007 | gfc_module_add_decl (cur_module, decl); |
6de9cd9a DN |
5008 | |
5009 | /* Also add length of strings. */ | |
5010 | if (sym->ts.type == BT_CHARACTER) | |
5011 | { | |
5012 | tree length; | |
5013 | ||
bc21d315 | 5014 | length = sym->ts.u.cl->backend_decl; |
9c4174d8 PT |
5015 | gcc_assert (length || sym->attr.proc_pointer); |
5016 | if (length && !INTEGER_CST_P (length)) | |
6de9cd9a DN |
5017 | { |
5018 | pushdecl (length); | |
0e6df31e | 5019 | rest_of_decl_compilation (length, 1, 0); |
6de9cd9a DN |
5020 | } |
5021 | } | |
b8ff4e88 TB |
5022 | |
5023 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
5024 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5025 | has_coarray_vars = true; | |
6de9cd9a DN |
5026 | } |
5027 | ||
9268ba9a | 5028 | /* Emit debug information for USE statements. */ |
a64f5186 JJ |
5029 | |
5030 | static void | |
5031 | gfc_trans_use_stmts (gfc_namespace * ns) | |
5032 | { | |
5033 | gfc_use_list *use_stmt; | |
5034 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
5035 | { | |
5036 | struct module_htab_entry *entry | |
5037 | = gfc_find_module (use_stmt->module_name); | |
5038 | gfc_use_rename *rent; | |
5039 | ||
5040 | if (entry->namespace_decl == NULL) | |
5041 | { | |
5042 | entry->namespace_decl | |
c2255bc4 AH |
5043 | = build_decl (input_location, |
5044 | NAMESPACE_DECL, | |
a64f5186 JJ |
5045 | get_identifier (use_stmt->module_name), |
5046 | void_type_node); | |
5047 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
5048 | } | |
9268ba9a | 5049 | gfc_set_backend_locus (&use_stmt->where); |
a64f5186 JJ |
5050 | if (!use_stmt->only_flag) |
5051 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
5052 | NULL_TREE, | |
5053 | ns->proc_name->backend_decl, | |
e071b767 | 5054 | false, false); |
a64f5186 JJ |
5055 | for (rent = use_stmt->rename; rent; rent = rent->next) |
5056 | { | |
5057 | tree decl, local_name; | |
a64f5186 JJ |
5058 | |
5059 | if (rent->op != INTRINSIC_NONE) | |
5060 | continue; | |
5061 | ||
2a22f99c TS |
5062 | hashval_t hash = htab_hash_string (rent->use_name); |
5063 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
5064 | INSERT); | |
a64f5186 JJ |
5065 | if (*slot == NULL) |
5066 | { | |
5067 | gfc_symtree *st; | |
5068 | ||
5069 | st = gfc_find_symtree (ns->sym_root, | |
5070 | rent->local_name[0] | |
5071 | ? rent->local_name : rent->use_name); | |
c3f34952 TB |
5072 | |
5073 | /* The following can happen if a derived type is renamed. */ | |
5074 | if (!st) | |
5075 | { | |
5076 | char *name; | |
5077 | name = xstrdup (rent->local_name[0] | |
5078 | ? rent->local_name : rent->use_name); | |
5079 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
5080 | st = gfc_find_symtree (ns->sym_root, name); | |
5081 | free (name); | |
5082 | gcc_assert (st); | |
5083 | } | |
1151ccc9 PT |
5084 | |
5085 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
5086 | local symbol (see PR41062). */ | |
5087 | if (!st->n.sym->attr.use_assoc) | |
5088 | continue; | |
5089 | ||
9268ba9a JJ |
5090 | if (st->n.sym->backend_decl |
5091 | && DECL_P (st->n.sym->backend_decl) | |
5092 | && st->n.sym->module | |
5093 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
a64f5186 | 5094 | { |
9268ba9a | 5095 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
d168c883 | 5096 | || !VAR_P (st->n.sym->backend_decl)); |
a64f5186 JJ |
5097 | decl = copy_node (st->n.sym->backend_decl); |
5098 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5099 | DECL_EXTERNAL (decl) = 1; | |
5100 | DECL_IGNORED_P (decl) = 0; | |
5101 | DECL_INITIAL (decl) = NULL_TREE; | |
5102 | } | |
5f673c6a TB |
5103 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
5104 | && st->n.sym->attr.use_only | |
5105 | && st->n.sym->module | |
5106 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
5107 | == 0) | |
5108 | { | |
5109 | decl = generate_namelist_decl (st->n.sym); | |
5110 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5111 | DECL_EXTERNAL (decl) = 1; | |
5112 | DECL_IGNORED_P (decl) = 0; | |
5113 | DECL_INITIAL (decl) = NULL_TREE; | |
5114 | } | |
a64f5186 JJ |
5115 | else |
5116 | { | |
5117 | *slot = error_mark_node; | |
2a22f99c | 5118 | entry->decls->clear_slot (slot); |
a64f5186 JJ |
5119 | continue; |
5120 | } | |
5121 | *slot = decl; | |
5122 | } | |
5123 | decl = (tree) *slot; | |
5124 | if (rent->local_name[0]) | |
5125 | local_name = get_identifier (rent->local_name); | |
5126 | else | |
5127 | local_name = NULL_TREE; | |
9268ba9a | 5128 | gfc_set_backend_locus (&rent->where); |
a64f5186 JJ |
5129 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
5130 | ns->proc_name->backend_decl, | |
e071b767 JJ |
5131 | !use_stmt->only_flag, |
5132 | false); | |
a64f5186 JJ |
5133 | } |
5134 | } | |
6de9cd9a DN |
5135 | } |
5136 | ||
9268ba9a | 5137 | |
bd11e37d JJ |
5138 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
5139 | will handle. */ | |
5140 | ||
5141 | static bool | |
5142 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
5143 | bool pointer) | |
5144 | { | |
5145 | gfc_constructor *c; | |
5146 | gfc_component *cm; | |
5147 | ||
5148 | if (pointer) | |
5149 | return true; | |
5150 | else if (array) | |
5151 | { | |
5152 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
5153 | return true; | |
5154 | else if (expr->expr_type == EXPR_STRUCTURE) | |
5155 | return check_constant_initializer (expr, ts, false, false); | |
5156 | else if (expr->expr_type != EXPR_ARRAY) | |
5157 | return false; | |
b7e75771 JD |
5158 | for (c = gfc_constructor_first (expr->value.constructor); |
5159 | c; c = gfc_constructor_next (c)) | |
bd11e37d JJ |
5160 | { |
5161 | if (c->iterator) | |
5162 | return false; | |
5163 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
5164 | { | |
5165 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
5166 | return false; | |
5167 | } | |
5168 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
5169 | return false; | |
5170 | } | |
5171 | return true; | |
5172 | } | |
5173 | else switch (ts->type) | |
5174 | { | |
f6288c24 | 5175 | case_bt_struct: |
bd11e37d JJ |
5176 | if (expr->expr_type != EXPR_STRUCTURE) |
5177 | return false; | |
bc21d315 | 5178 | cm = expr->ts.u.derived->components; |
b7e75771 JD |
5179 | for (c = gfc_constructor_first (expr->value.constructor); |
5180 | c; c = gfc_constructor_next (c), cm = cm->next) | |
bd11e37d JJ |
5181 | { |
5182 | if (!c->expr || cm->attr.allocatable) | |
5183 | continue; | |
5184 | if (!check_constant_initializer (c->expr, &cm->ts, | |
5185 | cm->attr.dimension, | |
5186 | cm->attr.pointer)) | |
5187 | return false; | |
5188 | } | |
5189 | return true; | |
5190 | default: | |
5191 | return expr->expr_type == EXPR_CONSTANT; | |
5192 | } | |
5193 | } | |
5194 | ||
5195 | /* Emit debug info for parameters and unreferenced variables with | |
5196 | initializers. */ | |
5197 | ||
5198 | static void | |
5199 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
5200 | { | |
5201 | tree decl; | |
5202 | ||
5203 | if (sym->attr.flavor != FL_PARAMETER | |
5204 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
5205 | return; | |
5206 | ||
5207 | if (sym->backend_decl != NULL | |
5208 | || sym->value == NULL | |
5209 | || sym->attr.use_assoc | |
5210 | || sym->attr.dummy | |
5211 | || sym->attr.result | |
5212 | || sym->attr.function | |
5213 | || sym->attr.intrinsic | |
5214 | || sym->attr.pointer | |
5215 | || sym->attr.allocatable | |
5216 | || sym->attr.cray_pointee | |
5217 | || sym->attr.threadprivate | |
5218 | || sym->attr.is_bind_c | |
5219 | || sym->attr.subref_array_pointer | |
5220 | || sym->attr.assign) | |
5221 | return; | |
5222 | ||
5223 | if (sym->ts.type == BT_CHARACTER) | |
5224 | { | |
bc21d315 JW |
5225 | gfc_conv_const_charlen (sym->ts.u.cl); |
5226 | if (sym->ts.u.cl->backend_decl == NULL | |
5227 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
bd11e37d JJ |
5228 | return; |
5229 | } | |
bc21d315 | 5230 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
bd11e37d JJ |
5231 | return; |
5232 | ||
5233 | if (sym->as) | |
5234 | { | |
5235 | int n; | |
5236 | ||
5237 | if (sym->as->type != AS_EXPLICIT) | |
5238 | return; | |
5239 | for (n = 0; n < sym->as->rank; n++) | |
5240 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5241 | || sym->as->upper[n] == NULL | |
5242 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5243 | return; | |
5244 | } | |
5245 | ||
5246 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5247 | sym->attr.dimension, false)) | |
5248 | return; | |
5249 | ||
f19626cf | 5250 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
b8ff4e88 TB |
5251 | return; |
5252 | ||
bd11e37d | 5253 | /* Create the decl for the variable or constant. */ |
c2255bc4 AH |
5254 | decl = build_decl (input_location, |
5255 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
bd11e37d JJ |
5256 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5257 | if (sym->attr.flavor == FL_PARAMETER) | |
5258 | TREE_READONLY (decl) = 1; | |
5259 | gfc_set_decl_location (decl, &sym->declared_at); | |
5260 | if (sym->attr.dimension) | |
5261 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5262 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5263 | TREE_STATIC (decl) = 1; | |
5264 | TREE_USED (decl) = 1; | |
5265 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5266 | TREE_PUBLIC (decl) = 1; | |
1d0134b3 JW |
5267 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5268 | TREE_TYPE (decl), | |
5269 | sym->attr.dimension, | |
5270 | false, false); | |
d7438551 | 5271 | debug_hooks->early_global_decl (decl); |
bd11e37d JJ |
5272 | } |
5273 | ||
b8ff4e88 TB |
5274 | |
5275 | static void | |
5276 | generate_coarray_sym_init (gfc_symbol *sym) | |
5277 | { | |
3c9f5092 | 5278 | tree tmp, size, decl, token, desc; |
5df445a2 | 5279 | bool is_lock_type, is_event_type; |
bc0229f9 | 5280 | int reg_type; |
3c9f5092 AV |
5281 | gfc_se se; |
5282 | symbol_attribute attr; | |
b8ff4e88 TB |
5283 | |
5284 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
d7463e5b TB |
5285 | || sym->attr.use_assoc || !sym->attr.referenced |
5286 | || sym->attr.select_type_temporary) | |
b8ff4e88 TB |
5287 | return; |
5288 | ||
5289 | decl = sym->backend_decl; | |
5290 | TREE_USED(decl) = 1; | |
5291 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5292 | ||
bc0229f9 TB |
5293 | is_lock_type = sym->ts.type == BT_DERIVED |
5294 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5295 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5296 | ||
5df445a2 TB |
5297 | is_event_type = sym->ts.type == BT_DERIVED |
5298 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5299 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5300 | ||
b8ff4e88 TB |
5301 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5302 | to make sure the variable is not optimized away. */ | |
5303 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5304 | ||
bc0229f9 TB |
5305 | /* For lock types, we pass the array size as only the library knows the |
5306 | size of the variable. */ | |
5df445a2 | 5307 | if (is_lock_type || is_event_type) |
bc0229f9 TB |
5308 | size = gfc_index_one_node; |
5309 | else | |
5310 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
b8ff4e88 | 5311 | |
8b704316 | 5312 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
107a9bc9 TB |
5313 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5314 | fold_convert (size_type_node, size), | |
5315 | build_int_cst (size_type_node, 1)); | |
5316 | ||
b8ff4e88 TB |
5317 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5318 | { | |
5319 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5320 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
107a9bc9 | 5321 | fold_convert (size_type_node, tmp), size); |
b8ff4e88 TB |
5322 | } |
5323 | ||
5324 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5325 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5326 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
bc0229f9 TB |
5327 | if (is_lock_type) |
5328 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
5df445a2 TB |
5329 | else if (is_event_type) |
5330 | reg_type = GFC_CAF_EVENT_STATIC; | |
bc0229f9 TB |
5331 | else |
5332 | reg_type = GFC_CAF_COARRAY_STATIC; | |
3c9f5092 | 5333 | |
ea06c7b0 AV |
5334 | /* Compile the symbol attribute. */ |
5335 | if (sym->ts.type == BT_CLASS) | |
5336 | { | |
5337 | attr = CLASS_DATA (sym)->attr; | |
5338 | /* The pointer attribute is always set on classes, overwrite it with the | |
5339 | class_pointer attribute, which denotes the pointer for classes. */ | |
5340 | attr.pointer = attr.class_pointer; | |
5341 | } | |
5342 | else | |
5343 | attr = sym->attr; | |
3c9f5092 AV |
5344 | gfc_init_se (&se, NULL); |
5345 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5346 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5347 | ||
5348 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
bc0229f9 | 5349 | build_int_cst (integer_type_node, reg_type), |
3c9f5092 AV |
5350 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5351 | null_pointer_node, /* stat. */ | |
ba85c8c3 | 5352 | null_pointer_node, /* errgmsg. */ |
3f5fabc0 | 5353 | build_zero_cst (size_type_node)); /* errmsg_len. */ |
3c9f5092 AV |
5354 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5355 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5356 | gfc_conv_descriptor_data_get (desc))); | |
b8ff4e88 | 5357 | |
b8ff4e88 TB |
5358 | /* Handle "static" initializer. */ |
5359 | if (sym->value) | |
5360 | { | |
5361 | sym->attr.pointer = 1; | |
5362 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5363 | true, false); | |
5364 | sym->attr.pointer = 0; | |
5365 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5366 | } | |
de91486c AV |
5367 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp) |
5368 | { | |
5369 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as | |
5370 | ? sym->as->rank : 0, | |
5371 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY); | |
5372 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5373 | } | |
b8ff4e88 TB |
5374 | } |
5375 | ||
5376 | ||
5377 | /* Generate constructor function to initialize static, nonallocatable | |
5378 | coarrays. */ | |
5379 | ||
5380 | static void | |
5381 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5382 | { | |
5383 | tree fndecl, tmp, decl, save_fn_decl; | |
5384 | ||
5385 | save_fn_decl = current_function_decl; | |
5386 | push_function_context (); | |
5387 | ||
5388 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5389 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5390 | create_tmp_var_name ("_caf_init"), tmp); | |
5391 | ||
5392 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5393 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5394 | ||
5395 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5396 | DECL_ARTIFICIAL (decl) = 1; | |
5397 | DECL_IGNORED_P (decl) = 1; | |
5398 | DECL_CONTEXT (decl) = fndecl; | |
5399 | DECL_RESULT (fndecl) = decl; | |
5400 | ||
5401 | pushdecl (fndecl); | |
5402 | current_function_decl = fndecl; | |
5403 | announce_function (fndecl); | |
5404 | ||
5405 | rest_of_decl_compilation (fndecl, 0, 0); | |
5406 | make_decl_rtl (fndecl); | |
b6b27e98 | 5407 | allocate_struct_function (fndecl, false); |
b8ff4e88 | 5408 | |
87a60f68 | 5409 | pushlevel (); |
b8ff4e88 TB |
5410 | gfc_init_block (&caf_init_block); |
5411 | ||
5412 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5413 | ||
5414 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5415 | decl = getdecls (); | |
5416 | ||
87a60f68 | 5417 | poplevel (1, 1); |
b8ff4e88 TB |
5418 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5419 | ||
5420 | DECL_SAVED_TREE (fndecl) | |
5421 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5422 | DECL_INITIAL (fndecl)); | |
5423 | dump_function (TDI_original, fndecl); | |
5424 | ||
5425 | cfun->function_end_locus = input_location; | |
5426 | set_cfun (NULL); | |
5427 | ||
5428 | if (decl_function_context (fndecl)) | |
d52f5295 | 5429 | (void) cgraph_node::create (fndecl); |
b8ff4e88 | 5430 | else |
3dafb85c | 5431 | cgraph_node::finalize_function (fndecl, true); |
b8ff4e88 TB |
5432 | |
5433 | pop_function_context (); | |
5434 | current_function_decl = save_fn_decl; | |
5435 | } | |
5436 | ||
5437 | ||
5f673c6a TB |
5438 | static void |
5439 | create_module_nml_decl (gfc_symbol *sym) | |
5440 | { | |
5441 | if (sym->attr.flavor == FL_NAMELIST) | |
5442 | { | |
5443 | tree decl = generate_namelist_decl (sym); | |
5444 | pushdecl (decl); | |
5445 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5446 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5447 | rest_of_decl_compilation (decl, 1, 0); | |
5448 | gfc_module_add_decl (cur_module, decl); | |
5449 | } | |
5450 | } | |
5451 | ||
5452 | ||
9268ba9a JJ |
5453 | /* Generate all the required code for module variables. */ |
5454 | ||
5455 | void | |
5456 | gfc_generate_module_vars (gfc_namespace * ns) | |
5457 | { | |
5458 | module_namespace = ns; | |
5459 | cur_module = gfc_find_module (ns->proc_name->name); | |
5460 | ||
5461 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5462 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5463 | ||
5464 | /* Generate COMMON blocks. */ | |
5465 | gfc_trans_common (ns); | |
5466 | ||
b8ff4e88 TB |
5467 | has_coarray_vars = false; |
5468 | ||
9268ba9a JJ |
5469 | /* Create decls for all the module variables. */ |
5470 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
5f673c6a | 5471 | gfc_traverse_ns (ns, create_module_nml_decl); |
9268ba9a | 5472 | |
f19626cf | 5473 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
5474 | generate_coarray_init (ns); |
5475 | ||
9268ba9a JJ |
5476 | cur_module = NULL; |
5477 | ||
5478 | gfc_trans_use_stmts (ns); | |
bd11e37d | 5479 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
9268ba9a JJ |
5480 | } |
5481 | ||
5482 | ||
6de9cd9a DN |
5483 | static void |
5484 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5485 | { | |
5486 | gfc_namespace *ns; | |
5487 | ||
5488 | /* We create all the prototypes before generating any code. */ | |
5489 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5490 | { | |
5491 | /* Skip namespaces from used modules. */ | |
5492 | if (ns->parent != parent) | |
5493 | continue; | |
5494 | ||
fb55ca75 | 5495 | gfc_create_function_decl (ns, false); |
6de9cd9a DN |
5496 | } |
5497 | ||
5498 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5499 | { | |
5500 | /* Skip namespaces from used modules. */ | |
5501 | if (ns->parent != parent) | |
5502 | continue; | |
5503 | ||
5504 | gfc_generate_function_code (ns); | |
5505 | } | |
5506 | } | |
5507 | ||
5508 | ||
3e978d30 PT |
5509 | /* Drill down through expressions for the array specification bounds and |
5510 | character length calling generate_local_decl for all those variables | |
5511 | that have not already been declared. */ | |
5512 | ||
5513 | static void | |
5514 | generate_local_decl (gfc_symbol *); | |
5515 | ||
908a2235 | 5516 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
3e978d30 | 5517 | |
908a2235 PT |
5518 | static bool |
5519 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5520 | int *f ATTRIBUTE_UNUSED) | |
5521 | { | |
5522 | if (e->expr_type != EXPR_VARIABLE | |
5523 | || sym == e->symtree->n.sym | |
3e978d30 PT |
5524 | || e->symtree->n.sym->mark |
5525 | || e->symtree->n.sym->ns != sym->ns) | |
908a2235 | 5526 | return false; |
3e978d30 | 5527 | |
908a2235 PT |
5528 | generate_local_decl (e->symtree->n.sym); |
5529 | return false; | |
5530 | } | |
3e978d30 | 5531 | |
908a2235 PT |
5532 | static void |
5533 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5534 | { | |
5535 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
3e978d30 PT |
5536 | } |
5537 | ||
5538 | ||
66e4ab31 | 5539 | /* Check for dependencies in the character length and array spec. */ |
3e978d30 PT |
5540 | |
5541 | static void | |
5542 | generate_dependency_declarations (gfc_symbol *sym) | |
5543 | { | |
5544 | int i; | |
5545 | ||
5546 | if (sym->ts.type == BT_CHARACTER | |
bc21d315 JW |
5547 | && sym->ts.u.cl |
5548 | && sym->ts.u.cl->length | |
5549 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5550 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
3e978d30 PT |
5551 | |
5552 | if (sym->as && sym->as->rank) | |
5553 | { | |
5554 | for (i = 0; i < sym->as->rank; i++) | |
5555 | { | |
5556 | generate_expr_decls (sym, sym->as->lower[i]); | |
5557 | generate_expr_decls (sym, sym->as->upper[i]); | |
5558 | } | |
5559 | } | |
5560 | } | |
5561 | ||
5562 | ||
6de9cd9a DN |
5563 | /* Generate decls for all local variables. We do this to ensure correct |
5564 | handling of expressions which only appear in the specification of | |
5565 | other functions. */ | |
5566 | ||
5567 | static void | |
5568 | generate_local_decl (gfc_symbol * sym) | |
5569 | { | |
5570 | if (sym->attr.flavor == FL_VARIABLE) | |
5571 | { | |
b8ff4e88 TB |
5572 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5573 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5574 | has_coarray_vars = true; | |
5575 | ||
3e978d30 | 5576 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
2c69d527 | 5577 | generate_dependency_declarations (sym); |
3e978d30 | 5578 | |
6de9cd9a | 5579 | if (sym->attr.referenced) |
2c69d527 | 5580 | gfc_get_symbol_decl (sym); |
4ed44ccc DF |
5581 | |
5582 | /* Warnings for unused dummy arguments. */ | |
c8877f40 | 5583 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
ad6d42e1 | 5584 | { |
4ed44ccc | 5585 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
73e42eef | 5586 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4ed44ccc DF |
5587 | { |
5588 | if (sym->ts.type != BT_DERIVED) | |
48749dbc MLI |
5589 | gfc_warning (OPT_Wunused_dummy_argument, |
5590 | "Dummy argument %qs at %L was declared " | |
4ed44ccc DF |
5591 | "INTENT(OUT) but was not set", sym->name, |
5592 | &sym->declared_at); | |
bf7a6c1c JW |
5593 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5594 | && !sym->ts.u.derived->attr.zero_comp) | |
48749dbc MLI |
5595 | gfc_warning (OPT_Wunused_dummy_argument, |
5596 | "Derived-type dummy argument %qs at %L was " | |
4ed44ccc DF |
5597 | "declared INTENT(OUT) but was not set and " |
5598 | "does not have a default initializer", | |
5599 | sym->name, &sym->declared_at); | |
fba5ace0 TB |
5600 | if (sym->backend_decl != NULL_TREE) |
5601 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4ed44ccc | 5602 | } |
73e42eef | 5603 | else if (warn_unused_dummy_argument) |
fba5ace0 | 5604 | { |
48749dbc MLI |
5605 | gfc_warning (OPT_Wunused_dummy_argument, |
5606 | "Unused dummy argument %qs at %L", sym->name, | |
5607 | &sym->declared_at); | |
fba5ace0 TB |
5608 | if (sym->backend_decl != NULL_TREE) |
5609 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5610 | } | |
ad6d42e1 | 5611 | } |
4ed44ccc | 5612 | |
f8d0aee5 | 5613 | /* Warn for unused variables, but not if they're inside a common |
ecdbf2cd | 5614 | block or a namelist. */ |
ce738b86 | 5615 | else if (warn_unused_variable |
ecdbf2cd | 5616 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
fba5ace0 | 5617 | { |
ecdbf2cd JW |
5618 | if (sym->attr.use_only) |
5619 | { | |
48749dbc MLI |
5620 | gfc_warning (OPT_Wunused_variable, |
5621 | "Unused module variable %qs which has been " | |
ecdbf2cd JW |
5622 | "explicitly imported at %L", sym->name, |
5623 | &sym->declared_at); | |
5624 | if (sym->backend_decl != NULL_TREE) | |
5625 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5626 | } | |
5627 | else if (!sym->attr.use_assoc) | |
5628 | { | |
ad7a5a8f SK |
5629 | /* Corner case: the symbol may be an entry point. At this point, |
5630 | it may appear to be an unused variable. Suppress warning. */ | |
5631 | bool enter = false; | |
5632 | gfc_entry_list *el; | |
5633 | ||
5634 | for (el = sym->ns->entries; el; el=el->next) | |
5635 | if (strcmp(sym->name, el->sym->name) == 0) | |
5636 | enter = true; | |
5637 | ||
5638 | if (!enter) | |
5639 | gfc_warning (OPT_Wunused_variable, | |
5640 | "Unused variable %qs declared at %L", | |
5641 | sym->name, &sym->declared_at); | |
ecdbf2cd JW |
5642 | if (sym->backend_decl != NULL_TREE) |
5643 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5644 | } | |
fba5ace0 | 5645 | } |
2c69d527 | 5646 | |
417ab240 JJ |
5647 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5648 | references the length variable, so force gfc_get_symbol_decl | |
5649 | even when not referenced. If optimize > 0, it will be optimized | |
5650 | away anyway. But do this only after emitting -Wunused-parameter | |
5651 | warning if requested. */ | |
2c69d527 PT |
5652 | if (sym->attr.dummy && !sym->attr.referenced |
5653 | && sym->ts.type == BT_CHARACTER | |
bc21d315 | 5654 | && sym->ts.u.cl->backend_decl != NULL |
d168c883 | 5655 | && VAR_P (sym->ts.u.cl->backend_decl)) |
417ab240 JJ |
5656 | { |
5657 | sym->attr.referenced = 1; | |
5658 | gfc_get_symbol_decl (sym); | |
5659 | } | |
534fd534 | 5660 | |
5af2eace PT |
5661 | /* INTENT(out) dummy arguments and result variables with allocatable |
5662 | components are reset by default and need to be set referenced to | |
5663 | generate the code for nullification and automatic lengths. */ | |
5664 | if (!sym->attr.referenced | |
2c69d527 | 5665 | && sym->ts.type == BT_DERIVED |
bc21d315 | 5666 | && sym->ts.u.derived->attr.alloc_comp |
758e12af | 5667 | && !sym->attr.pointer |
5af2eace PT |
5668 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5669 | || | |
5670 | (sym->attr.result && sym != sym->result))) | |
2c69d527 PT |
5671 | { |
5672 | sym->attr.referenced = 1; | |
5673 | gfc_get_symbol_decl (sym); | |
5674 | } | |
5675 | ||
06c7153f TB |
5676 | /* Check for dependencies in the array specification and string |
5677 | length, adding the necessary declarations to the function. We | |
5678 | mark the symbol now, as well as in traverse_ns, to prevent | |
5679 | getting stuck in a circular dependency. */ | |
5680 | sym->mark = 1; | |
6de9cd9a | 5681 | } |
33c0c5e9 DF |
5682 | else if (sym->attr.flavor == FL_PARAMETER) |
5683 | { | |
d92693b4 | 5684 | if (warn_unused_parameter |
dbad8e71 TB |
5685 | && !sym->attr.referenced) |
5686 | { | |
5687 | if (!sym->attr.use_assoc) | |
48749dbc MLI |
5688 | gfc_warning (OPT_Wunused_parameter, |
5689 | "Unused parameter %qs declared at %L", sym->name, | |
dbad8e71 TB |
5690 | &sym->declared_at); |
5691 | else if (sym->attr.use_only) | |
48749dbc MLI |
5692 | gfc_warning (OPT_Wunused_parameter, |
5693 | "Unused parameter %qs which has been explicitly " | |
dbad8e71 TB |
5694 | "imported at %L", sym->name, &sym->declared_at); |
5695 | } | |
285b1f01 SK |
5696 | |
5697 | if (sym->ns | |
5698 | && sym->ns->parent | |
5699 | && sym->ns->parent->code | |
5700 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5701 | { | |
5702 | if (sym->attr.referenced) | |
5703 | gfc_get_symbol_decl (sym); | |
5704 | sym->mark = 1; | |
5705 | } | |
33c0c5e9 | 5706 | } |
766d0c8c DF |
5707 | else if (sym->attr.flavor == FL_PROCEDURE) |
5708 | { | |
5709 | /* TODO: move to the appropriate place in resolve.c. */ | |
134d2354 | 5710 | if (warn_return_type > 0 |
766d0c8c DF |
5711 | && sym->attr.function |
5712 | && sym->result | |
5713 | && sym != sym->result | |
5714 | && !sym->result->attr.referenced | |
5715 | && !sym->attr.use_assoc | |
5716 | && sym->attr.if_source != IFSRC_IFBODY) | |
5717 | { | |
48749dbc MLI |
5718 | gfc_warning (OPT_Wreturn_type, |
5719 | "Return value %qs of function %qs declared at " | |
766d0c8c DF |
5720 | "%L not set", sym->result->name, sym->name, |
5721 | &sym->result->declared_at); | |
5722 | ||
5723 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
06c7153f | 5724 | sym->result->mark = 1; |
766d0c8c DF |
5725 | } |
5726 | } | |
a8b3b0b6 | 5727 | |
8b16d231 CR |
5728 | if (sym->attr.dummy == 1) |
5729 | { | |
5730 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5731 | procedures if they are passed by value. The tree type for them will | |
5732 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5733 | what C would do with characters passed by-value. The value attribute | |
5734 | implies the dummy is a scalar. */ | |
5735 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5736 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5737 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
e032c2a1 | 5738 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
d20597cb TK |
5739 | |
5740 | /* Unused procedure passed as dummy argument. */ | |
5741 | if (sym->attr.flavor == FL_PROCEDURE) | |
5742 | { | |
5743 | if (!sym->attr.referenced) | |
5744 | { | |
73e42eef | 5745 | if (warn_unused_dummy_argument) |
48749dbc MLI |
5746 | gfc_warning (OPT_Wunused_dummy_argument, |
5747 | "Unused dummy argument %qs at %L", sym->name, | |
8b704316 | 5748 | &sym->declared_at); |
d20597cb TK |
5749 | } |
5750 | ||
5751 | /* Silence bogus "unused parameter" warnings from the | |
5752 | middle end. */ | |
5753 | if (sym->backend_decl != NULL_TREE) | |
5754 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5755 | } | |
8b16d231 CR |
5756 | } |
5757 | ||
a8b3b0b6 CR |
5758 | /* Make sure we convert the types of the derived types from iso_c_binding |
5759 | into (void *). */ | |
5760 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5761 | && sym->ts.type == BT_DERIVED) | |
5762 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
6de9cd9a DN |
5763 | } |
5764 | ||
5f673c6a TB |
5765 | |
5766 | static void | |
5767 | generate_local_nml_decl (gfc_symbol * sym) | |
5768 | { | |
5769 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5770 | { | |
5771 | tree decl = generate_namelist_decl (sym); | |
5772 | pushdecl (decl); | |
5773 | } | |
5774 | } | |
5775 | ||
5776 | ||
6de9cd9a DN |
5777 | static void |
5778 | generate_local_vars (gfc_namespace * ns) | |
5779 | { | |
5780 | gfc_traverse_ns (ns, generate_local_decl); | |
5f673c6a | 5781 | gfc_traverse_ns (ns, generate_local_nml_decl); |
6de9cd9a DN |
5782 | } |
5783 | ||
5784 | ||
3d79abbd PB |
5785 | /* Generate a switch statement to jump to the correct entry point. Also |
5786 | creates the label decls for the entry points. */ | |
6de9cd9a | 5787 | |
3d79abbd PB |
5788 | static tree |
5789 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
6de9cd9a | 5790 | { |
3d79abbd PB |
5791 | stmtblock_t block; |
5792 | tree label; | |
5793 | tree tmp; | |
5794 | tree val; | |
6de9cd9a | 5795 | |
3d79abbd PB |
5796 | gfc_init_block (&block); |
5797 | for (; el; el = el->next) | |
5798 | { | |
5799 | /* Add the case label. */ | |
c006df4e | 5800 | label = gfc_build_label_decl (NULL_TREE); |
7d60be94 | 5801 | val = build_int_cst (gfc_array_index_type, el->id); |
3d528853 | 5802 | tmp = build_case_label (val, NULL_TREE, label); |
3d79abbd | 5803 | gfc_add_expr_to_block (&block, tmp); |
7389bce6 | 5804 | |
3d79abbd PB |
5805 | /* And jump to the actual entry point. */ |
5806 | label = gfc_build_label_decl (NULL_TREE); | |
3d79abbd PB |
5807 | tmp = build1_v (GOTO_EXPR, label); |
5808 | gfc_add_expr_to_block (&block, tmp); | |
5809 | ||
5810 | /* Save the label decl. */ | |
5811 | el->label = label; | |
5812 | } | |
5813 | tmp = gfc_finish_block (&block); | |
5814 | /* The first argument selects the entry point. */ | |
5815 | val = DECL_ARGUMENTS (current_function_decl); | |
9e851845 | 5816 | tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp); |
3d79abbd | 5817 | return tmp; |
6de9cd9a DN |
5818 | } |
5819 | ||
44de5aeb | 5820 | |
cadb8f42 DK |
5821 | /* Add code to string lengths of actual arguments passed to a function against |
5822 | the expected lengths of the dummy arguments. */ | |
5823 | ||
5824 | static void | |
5825 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5826 | { | |
5827 | gfc_formal_arglist *formal; | |
5828 | ||
4cbc9039 | 5829 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
be94c034 | 5830 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
9be1227b | 5831 | && !formal->sym->ts.deferred) |
cadb8f42 DK |
5832 | { |
5833 | enum tree_code comparison; | |
5834 | tree cond; | |
5835 | tree argname; | |
5836 | gfc_symbol *fsym; | |
5837 | gfc_charlen *cl; | |
5838 | const char *message; | |
5839 | ||
5840 | fsym = formal->sym; | |
bc21d315 | 5841 | cl = fsym->ts.u.cl; |
cadb8f42 DK |
5842 | |
5843 | gcc_assert (cl); | |
5844 | gcc_assert (cl->passed_length != NULL_TREE); | |
5845 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5846 | ||
5847 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5848 | string lengths must match exactly. Otherwise, it is only required | |
cb7a8961 TB |
5849 | that the actual string length is *at least* the expected one. |
5850 | Sequence association allows for a mismatch of the string length | |
5851 | if the actual argument is (part of) an array, but only if the | |
5852 | dummy argument is an array. (See "Sequence association" in | |
5853 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
be94c034 | 5854 | if (fsym->attr.pointer || fsym->attr.allocatable |
c62c6622 TB |
5855 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5856 | || fsym->as->type == AS_ASSUMED_RANK))) | |
cadb8f42 DK |
5857 | { |
5858 | comparison = NE_EXPR; | |
5859 | message = _("Actual string length does not match the declared one" | |
5860 | " for dummy argument '%s' (%ld/%ld)"); | |
5861 | } | |
cb7a8961 TB |
5862 | else if (fsym->as && fsym->as->rank != 0) |
5863 | continue; | |
cadb8f42 DK |
5864 | else |
5865 | { | |
5866 | comparison = LT_EXPR; | |
5867 | message = _("Actual string length is shorter than the declared one" | |
5868 | " for dummy argument '%s' (%ld/%ld)"); | |
5869 | } | |
5870 | ||
5871 | /* Build the condition. For optional arguments, an actual length | |
5872 | of 0 is also acceptable if the associated string is NULL, which | |
5873 | means the argument was not passed. */ | |
63ee5404 | 5874 | cond = fold_build2_loc (input_location, comparison, logical_type_node, |
bc98ed60 | 5875 | cl->passed_length, cl->backend_decl); |
cadb8f42 DK |
5876 | if (fsym->attr.optional) |
5877 | { | |
5878 | tree not_absent; | |
5879 | tree not_0length; | |
5880 | tree absent_failed; | |
5881 | ||
bc98ed60 | 5882 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
63ee5404 | 5883 | logical_type_node, |
bc98ed60 | 5884 | cl->passed_length, |
f622221a JB |
5885 | build_zero_cst |
5886 | (TREE_TYPE (cl->passed_length))); | |
702a738b PT |
5887 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5888 | fsym->attr.referenced = 1; | |
5889 | not_absent = gfc_conv_expr_present (fsym); | |
cadb8f42 | 5890 | |
bc98ed60 | 5891 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
63ee5404 | 5892 | logical_type_node, not_0length, |
bc98ed60 | 5893 | not_absent); |
cadb8f42 | 5894 | |
bc98ed60 | 5895 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
63ee5404 | 5896 | logical_type_node, cond, absent_failed); |
cadb8f42 DK |
5897 | } |
5898 | ||
5899 | /* Build the runtime check. */ | |
5900 | argname = gfc_build_cstring_const (fsym->name); | |
5901 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5902 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5903 | message, argname, | |
5904 | fold_convert (long_integer_type_node, | |
5905 | cl->passed_length), | |
5906 | fold_convert (long_integer_type_node, | |
5907 | cl->backend_decl)); | |
5908 | } | |
5909 | } | |
5910 | ||
5911 | ||
092231a8 TB |
5912 | static void |
5913 | create_main_function (tree fndecl) | |
5914 | { | |
86c3c481 | 5915 | tree old_context; |
092231a8 TB |
5916 | tree ftn_main; |
5917 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5918 | stmtblock_t body; | |
5919 | ||
86c3c481 TB |
5920 | old_context = current_function_decl; |
5921 | ||
5922 | if (old_context) | |
5923 | { | |
5924 | push_function_context (); | |
5925 | saved_parent_function_decls = saved_function_decls; | |
5926 | saved_function_decls = NULL_TREE; | |
5927 | } | |
5928 | ||
092231a8 TB |
5929 | /* main() function must be declared with global scope. */ |
5930 | gcc_assert (current_function_decl == NULL_TREE); | |
5931 | ||
5932 | /* Declare the function. */ | |
5933 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5934 | build_pointer_type (pchar_type_node), | |
5935 | NULL_TREE); | |
a7ad6c2d | 5936 | main_identifier_node = get_identifier ("main"); |
c2255bc4 AH |
5937 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5938 | main_identifier_node, tmp); | |
092231a8 TB |
5939 | DECL_EXTERNAL (ftn_main) = 0; |
5940 | TREE_PUBLIC (ftn_main) = 1; | |
5941 | TREE_STATIC (ftn_main) = 1; | |
5942 | DECL_ATTRIBUTES (ftn_main) | |
5943 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5944 | ||
5945 | /* Setup the result declaration (for "return 0"). */ | |
c2255bc4 AH |
5946 | result_decl = build_decl (input_location, |
5947 | RESULT_DECL, NULL_TREE, integer_type_node); | |
092231a8 TB |
5948 | DECL_ARTIFICIAL (result_decl) = 1; |
5949 | DECL_IGNORED_P (result_decl) = 1; | |
5950 | DECL_CONTEXT (result_decl) = ftn_main; | |
5951 | DECL_RESULT (ftn_main) = result_decl; | |
5952 | ||
5953 | pushdecl (ftn_main); | |
5954 | ||
5955 | /* Get the arguments. */ | |
5956 | ||
5957 | arglist = NULL_TREE; | |
5958 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5959 | ||
5960 | tmp = TREE_VALUE (typelist); | |
c2255bc4 | 5961 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
092231a8 TB |
5962 | DECL_CONTEXT (argc) = ftn_main; |
5963 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5964 | TREE_READONLY (argc) = 1; | |
5965 | gfc_finish_decl (argc); | |
5966 | arglist = chainon (arglist, argc); | |
5967 | ||
5968 | typelist = TREE_CHAIN (typelist); | |
5969 | tmp = TREE_VALUE (typelist); | |
c2255bc4 | 5970 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
092231a8 TB |
5971 | DECL_CONTEXT (argv) = ftn_main; |
5972 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5973 | TREE_READONLY (argv) = 1; | |
5974 | DECL_BY_REFERENCE (argv) = 1; | |
5975 | gfc_finish_decl (argv); | |
5976 | arglist = chainon (arglist, argv); | |
5977 | ||
5978 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5979 | current_function_decl = ftn_main; | |
5980 | announce_function (ftn_main); | |
5981 | ||
5982 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5983 | make_decl_rtl (ftn_main); | |
b6b27e98 | 5984 | allocate_struct_function (ftn_main, false); |
87a60f68 | 5985 | pushlevel (); |
092231a8 TB |
5986 | |
5987 | gfc_init_block (&body); | |
5988 | ||
1cc0e193 | 5989 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
092231a8 | 5990 | |
a8a5f4a9 | 5991 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
f19626cf | 5992 | if (flag_coarray == GFC_FCOARRAY_LIB) |
60386f50 TB |
5993 | { |
5994 | tree pint_type, pppchar_type; | |
5995 | pint_type = build_pointer_type (integer_type_node); | |
5996 | pppchar_type | |
5997 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5998 | ||
a8a5f4a9 | 5999 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
60386f50 | 6000 | gfc_build_addr_expr (pint_type, argc), |
a8a5f4a9 | 6001 | gfc_build_addr_expr (pppchar_type, argv)); |
60386f50 TB |
6002 | gfc_add_expr_to_block (&body, tmp); |
6003 | } | |
6004 | ||
092231a8 | 6005 | /* Call _gfortran_set_args (argc, argv). */ |
86c3c481 TB |
6006 | TREE_USED (argc) = 1; |
6007 | TREE_USED (argv) = 1; | |
db3927fb AH |
6008 | tmp = build_call_expr_loc (input_location, |
6009 | gfor_fndecl_set_args, 2, argc, argv); | |
092231a8 TB |
6010 | gfc_add_expr_to_block (&body, tmp); |
6011 | ||
6012 | /* Add a call to set_options to set up the runtime library Fortran | |
6013 | language standard parameters. */ | |
6014 | { | |
6015 | tree array_type, array, var; | |
9771b263 | 6016 | vec<constructor_elt, va_gc> *v = NULL; |
75b07bb4 | 6017 | static const int noptions = 7; |
092231a8 | 6018 | |
75b07bb4 FXC |
6019 | /* Passing a new option to the library requires three modifications: |
6020 | + add it to the tree_cons list below | |
6021 | + change the noptions variable above | |
092231a8 TB |
6022 | + modify the library (runtime/compile_options.c)! */ |
6023 | ||
8748ad99 NF |
6024 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6025 | build_int_cst (integer_type_node, | |
6026 | gfc_option.warn_std)); | |
6027 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6028 | build_int_cst (integer_type_node, | |
6029 | gfc_option.allow_std)); | |
6030 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6031 | build_int_cst (integer_type_node, pedantic)); | |
8748ad99 | 6032 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
c61819ff | 6033 | build_int_cst (integer_type_node, flag_backtrace)); |
8748ad99 | 6034 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
c61819ff | 6035 | build_int_cst (integer_type_node, flag_sign_zero)); |
8748ad99 NF |
6036 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6037 | build_int_cst (integer_type_node, | |
6038 | (gfc_option.rtcheck | |
6039 | & GFC_RTCHECK_BOUNDS))); | |
6040 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6041 | build_int_cst (integer_type_node, | |
fa86f4f9 | 6042 | gfc_option.fpe_summary)); |
092231a8 | 6043 | |
75b07bb4 | 6044 | array_type = build_array_type_nelts (integer_type_node, noptions); |
8748ad99 | 6045 | array = build_constructor (array_type, v); |
092231a8 TB |
6046 | TREE_CONSTANT (array) = 1; |
6047 | TREE_STATIC (array) = 1; | |
6048 | ||
6049 | /* Create a static variable to hold the jump table. */ | |
059345ce | 6050 | var = build_decl (input_location, VAR_DECL, |
75b07bb4 | 6051 | create_tmp_var_name ("options"), array_type); |
059345ce BS |
6052 | DECL_ARTIFICIAL (var) = 1; |
6053 | DECL_IGNORED_P (var) = 1; | |
092231a8 TB |
6054 | TREE_CONSTANT (var) = 1; |
6055 | TREE_STATIC (var) = 1; | |
6056 | TREE_READONLY (var) = 1; | |
6057 | DECL_INITIAL (var) = array; | |
059345ce | 6058 | pushdecl (var); |
092231a8 TB |
6059 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
6060 | ||
db3927fb AH |
6061 | tmp = build_call_expr_loc (input_location, |
6062 | gfor_fndecl_set_options, 2, | |
75b07bb4 | 6063 | build_int_cst (integer_type_node, noptions), var); |
092231a8 TB |
6064 | gfc_add_expr_to_block (&body, tmp); |
6065 | } | |
6066 | ||
6067 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
6068 | the library will raise a FPE when needed. */ | |
6069 | if (gfc_option.fpe != 0) | |
6070 | { | |
db3927fb AH |
6071 | tmp = build_call_expr_loc (input_location, |
6072 | gfor_fndecl_set_fpe, 1, | |
092231a8 TB |
6073 | build_int_cst (integer_type_node, |
6074 | gfc_option.fpe)); | |
6075 | gfc_add_expr_to_block (&body, tmp); | |
6076 | } | |
6077 | ||
6078 | /* If this is the main program and an -fconvert option was provided, | |
6079 | add a call to set_convert. */ | |
6080 | ||
f19626cf | 6081 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
092231a8 | 6082 | { |
db3927fb AH |
6083 | tmp = build_call_expr_loc (input_location, |
6084 | gfor_fndecl_set_convert, 1, | |
f19626cf | 6085 | build_int_cst (integer_type_node, flag_convert)); |
092231a8 TB |
6086 | gfc_add_expr_to_block (&body, tmp); |
6087 | } | |
6088 | ||
6089 | /* If this is the main program and an -frecord-marker option was provided, | |
6090 | add a call to set_record_marker. */ | |
6091 | ||
203c7ebf | 6092 | if (flag_record_marker != 0) |
092231a8 | 6093 | { |
db3927fb AH |
6094 | tmp = build_call_expr_loc (input_location, |
6095 | gfor_fndecl_set_record_marker, 1, | |
092231a8 | 6096 | build_int_cst (integer_type_node, |
203c7ebf | 6097 | flag_record_marker)); |
092231a8 TB |
6098 | gfc_add_expr_to_block (&body, tmp); |
6099 | } | |
6100 | ||
203c7ebf | 6101 | if (flag_max_subrecord_length != 0) |
092231a8 | 6102 | { |
db3927fb AH |
6103 | tmp = build_call_expr_loc (input_location, |
6104 | gfor_fndecl_set_max_subrecord_length, 1, | |
092231a8 | 6105 | build_int_cst (integer_type_node, |
203c7ebf | 6106 | flag_max_subrecord_length)); |
092231a8 TB |
6107 | gfc_add_expr_to_block (&body, tmp); |
6108 | } | |
6109 | ||
6110 | /* Call MAIN__(). */ | |
db3927fb AH |
6111 | tmp = build_call_expr_loc (input_location, |
6112 | fndecl, 0); | |
092231a8 TB |
6113 | gfc_add_expr_to_block (&body, tmp); |
6114 | ||
86c3c481 TB |
6115 | /* Mark MAIN__ as used. */ |
6116 | TREE_USED (fndecl) = 1; | |
6117 | ||
60386f50 | 6118 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
f19626cf | 6119 | if (flag_coarray == GFC_FCOARRAY_LIB) |
8b704316 | 6120 | { |
60386f50 TB |
6121 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
6122 | gfc_add_expr_to_block (&body, tmp); | |
6123 | } | |
6124 | ||
092231a8 | 6125 | /* "return 0". */ |
bc98ed60 TB |
6126 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
6127 | DECL_RESULT (ftn_main), | |
6128 | build_int_cst (integer_type_node, 0)); | |
092231a8 TB |
6129 | tmp = build1_v (RETURN_EXPR, tmp); |
6130 | gfc_add_expr_to_block (&body, tmp); | |
6131 | ||
6132 | ||
6133 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
6134 | decl = getdecls (); | |
6135 | ||
6136 | /* Finish off this function and send it for code generation. */ | |
87a60f68 | 6137 | poplevel (1, 1); |
092231a8 TB |
6138 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
6139 | ||
6140 | DECL_SAVED_TREE (ftn_main) | |
6141 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
6142 | DECL_INITIAL (ftn_main)); | |
6143 | ||
6144 | /* Output the GENERIC tree. */ | |
6145 | dump_function (TDI_original, ftn_main); | |
6146 | ||
3dafb85c | 6147 | cgraph_node::finalize_function (ftn_main, true); |
86c3c481 TB |
6148 | |
6149 | if (old_context) | |
6150 | { | |
6151 | pop_function_context (); | |
6152 | saved_function_decls = saved_parent_function_decls; | |
6153 | } | |
6154 | current_function_decl = old_context; | |
092231a8 TB |
6155 | } |
6156 | ||
6157 | ||
d74d8807 DK |
6158 | /* Generate an appropriate return-statement for a procedure. */ |
6159 | ||
6160 | tree | |
6161 | gfc_generate_return (void) | |
6162 | { | |
6163 | gfc_symbol* sym; | |
6164 | tree result; | |
6165 | tree fndecl; | |
6166 | ||
6167 | sym = current_procedure_symbol; | |
6168 | fndecl = sym->backend_decl; | |
6169 | ||
6170 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
6171 | result = NULL_TREE; | |
6172 | else | |
6173 | { | |
6174 | result = get_proc_result (sym); | |
6175 | ||
6176 | /* Set the return value to the dummy result variable. The | |
6177 | types may be different for scalar default REAL functions | |
6178 | with -ff2c, therefore we have to convert. */ | |
6179 | if (result != NULL_TREE) | |
6180 | { | |
6181 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
bc98ed60 TB |
6182 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
6183 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
6184 | result); | |
d74d8807 DK |
6185 | } |
6186 | } | |
6187 | ||
6188 | return build1_v (RETURN_EXPR, result); | |
6189 | } | |
6190 | ||
6191 | ||
8b198102 FXC |
6192 | static void |
6193 | is_from_ieee_module (gfc_symbol *sym) | |
6194 | { | |
6195 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6196 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6197 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6198 | seen_ieee_symbol = 1; | |
6199 | } | |
6200 | ||
6201 | ||
6202 | static int | |
6203 | is_ieee_module_used (gfc_namespace *ns) | |
6204 | { | |
6205 | seen_ieee_symbol = 0; | |
6206 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6207 | return seen_ieee_symbol; | |
6208 | } | |
6209 | ||
6210 | ||
dc7a8b4b JN |
6211 | static gfc_omp_clauses *module_oacc_clauses; |
6212 | ||
6213 | ||
6214 | static void | |
6215 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6216 | { | |
6217 | gfc_omp_namelist *n; | |
6218 | ||
6219 | n = gfc_get_omp_namelist (); | |
6220 | n->sym = sym; | |
6221 | n->u.map_op = map_op; | |
6222 | ||
6223 | if (!module_oacc_clauses) | |
6224 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6225 | ||
6226 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6227 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6228 | ||
6229 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6230 | } | |
6231 | ||
6232 | ||
6233 | static void | |
6234 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6235 | { | |
6236 | if (sym->attr.use_assoc) | |
6237 | { | |
6238 | gfc_omp_map_op map_op; | |
6239 | ||
6240 | if (sym->attr.oacc_declare_create) | |
6241 | map_op = OMP_MAP_FORCE_ALLOC; | |
6242 | ||
6243 | if (sym->attr.oacc_declare_copyin) | |
6244 | map_op = OMP_MAP_FORCE_TO; | |
6245 | ||
6246 | if (sym->attr.oacc_declare_deviceptr) | |
6247 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6248 | ||
6249 | if (sym->attr.oacc_declare_device_resident) | |
6250 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6251 | ||
6252 | if (sym->attr.oacc_declare_create | |
6253 | || sym->attr.oacc_declare_copyin | |
6254 | || sym->attr.oacc_declare_deviceptr | |
6255 | || sym->attr.oacc_declare_device_resident) | |
6256 | { | |
6257 | sym->attr.referenced = 1; | |
6258 | add_clause (sym, map_op); | |
6259 | } | |
6260 | } | |
6261 | } | |
6262 | ||
6263 | ||
6264 | void | |
6265 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6266 | { | |
6267 | gfc_code *code; | |
6268 | gfc_oacc_declare *oc; | |
6269 | locus where = gfc_current_locus; | |
6270 | gfc_omp_clauses *omp_clauses = NULL; | |
6271 | gfc_omp_namelist *n, *p; | |
6272 | ||
6273 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6274 | ||
6275 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6276 | { | |
6277 | gfc_oacc_declare *new_oc; | |
6278 | ||
6279 | new_oc = gfc_get_oacc_declare (); | |
6280 | new_oc->next = ns->oacc_declare; | |
6281 | new_oc->clauses = module_oacc_clauses; | |
6282 | ||
6283 | ns->oacc_declare = new_oc; | |
6284 | module_oacc_clauses = NULL; | |
6285 | } | |
6286 | ||
6287 | if (!ns->oacc_declare) | |
6288 | return; | |
6289 | ||
6290 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6291 | { | |
6292 | if (oc->module_var) | |
6293 | continue; | |
6294 | ||
6295 | if (block) | |
e711928b | 6296 | gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed " |
dc7a8b4b JN |
6297 | "in BLOCK construct", &oc->loc); |
6298 | ||
6299 | ||
6300 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6301 | { | |
6302 | if (omp_clauses == NULL) | |
6303 | { | |
6304 | omp_clauses = oc->clauses; | |
6305 | continue; | |
6306 | } | |
6307 | ||
6308 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6309 | ; | |
6310 | ||
6311 | gcc_assert (p->next == NULL); | |
6312 | ||
6313 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6314 | omp_clauses = oc->clauses; | |
6315 | } | |
6316 | } | |
6317 | ||
6318 | if (!omp_clauses) | |
6319 | return; | |
6320 | ||
6321 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6322 | { | |
6323 | switch (n->u.map_op) | |
6324 | { | |
6325 | case OMP_MAP_DEVICE_RESIDENT: | |
6326 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6327 | break; | |
6328 | ||
6329 | default: | |
6330 | break; | |
6331 | } | |
6332 | } | |
6333 | ||
6334 | code = XCNEW (gfc_code); | |
6335 | code->op = EXEC_OACC_DECLARE; | |
6336 | code->loc = where; | |
6337 | ||
6338 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6339 | code->ext.oacc_declare->clauses = omp_clauses; | |
6340 | ||
6341 | code->block = XCNEW (gfc_code); | |
6342 | code->block->op = EXEC_OACC_DECLARE; | |
6343 | code->block->loc = where; | |
6344 | ||
6345 | if (ns->code) | |
6346 | code->block->next = ns->code; | |
6347 | ||
6348 | ns->code = code; | |
6349 | ||
6350 | return; | |
6351 | } | |
6352 | ||
6353 | ||
6de9cd9a DN |
6354 | /* Generate code for a function. */ |
6355 | ||
6356 | void | |
6357 | gfc_generate_function_code (gfc_namespace * ns) | |
6358 | { | |
6359 | tree fndecl; | |
6360 | tree old_context; | |
6361 | tree decl; | |
6362 | tree tmp; | |
8b198102 | 6363 | tree fpstate = NULL_TREE; |
d74d8807 | 6364 | stmtblock_t init, cleanup; |
6de9cd9a | 6365 | stmtblock_t body; |
d74d8807 | 6366 | gfc_wrapped_block try_block; |
702a738b | 6367 | tree recurcheckvar = NULL_TREE; |
6de9cd9a | 6368 | gfc_symbol *sym; |
d74d8807 | 6369 | gfc_symbol *previous_procedure_symbol; |
8b198102 | 6370 | int rank, ieee; |
cf7d2eb0 | 6371 | bool is_recursive; |
6de9cd9a DN |
6372 | |
6373 | sym = ns->proc_name; | |
d74d8807 DK |
6374 | previous_procedure_symbol = current_procedure_symbol; |
6375 | current_procedure_symbol = sym; | |
3d79abbd | 6376 | |
345bd7eb PT |
6377 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6378 | lost or worse. */ | |
6de9cd9a DN |
6379 | sym->tlink = sym; |
6380 | ||
6381 | /* Create the declaration for functions with global scope. */ | |
6382 | if (!sym->backend_decl) | |
fb55ca75 | 6383 | gfc_create_function_decl (ns, false); |
6de9cd9a DN |
6384 | |
6385 | fndecl = sym->backend_decl; | |
6386 | old_context = current_function_decl; | |
6387 | ||
6388 | if (old_context) | |
6389 | { | |
6390 | push_function_context (); | |
6391 | saved_parent_function_decls = saved_function_decls; | |
6392 | saved_function_decls = NULL_TREE; | |
6393 | } | |
6394 | ||
3d79abbd | 6395 | trans_function_start (sym); |
6de9cd9a | 6396 | |
d74d8807 | 6397 | gfc_init_block (&init); |
6de9cd9a | 6398 | |
d198b59a JJ |
6399 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6400 | { | |
6401 | /* Copy length backend_decls to all entry point result | |
6402 | symbols. */ | |
6403 | gfc_entry_list *el; | |
6404 | tree backend_decl; | |
6405 | ||
bc21d315 JW |
6406 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6407 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
d198b59a | 6408 | for (el = ns->entries; el; el = el->next) |
bc21d315 | 6409 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
d198b59a JJ |
6410 | } |
6411 | ||
6de9cd9a DN |
6412 | /* Translate COMMON blocks. */ |
6413 | gfc_trans_common (ns); | |
6414 | ||
5f20c93a PT |
6415 | /* Null the parent fake result declaration if this namespace is |
6416 | a module function or an external procedures. */ | |
6417 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6418 | || ns->parent == NULL) | |
6419 | parent_fake_result_decl = NULL_TREE; | |
6420 | ||
30aabb86 PT |
6421 | gfc_generate_contained_functions (ns); |
6422 | ||
77f2a970 JJ |
6423 | nonlocal_dummy_decls = NULL; |
6424 | nonlocal_dummy_decl_pset = NULL; | |
6425 | ||
b8ff4e88 | 6426 | has_coarray_vars = false; |
6de9cd9a | 6427 | generate_local_vars (ns); |
7389bce6 | 6428 | |
f19626cf | 6429 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
6430 | generate_coarray_init (ns); |
6431 | ||
5f20c93a PT |
6432 | /* Keep the parent fake result declaration in module functions |
6433 | or external procedures. */ | |
6434 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6435 | || ns->parent == NULL) | |
6436 | current_fake_result_decl = parent_fake_result_decl; | |
6437 | else | |
6438 | current_fake_result_decl = NULL_TREE; | |
6439 | ||
d74d8807 DK |
6440 | is_recursive = sym->attr.recursive |
6441 | || (sym->attr.entry_master | |
6442 | && sym->ns->entries->sym->attr.recursive); | |
6443 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
c61819ff | 6444 | && !is_recursive && !flag_recursive) |
d74d8807 DK |
6445 | { |
6446 | char * msg; | |
6447 | ||
1a33dc9e UB |
6448 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6449 | sym->name); | |
63ee5404 | 6450 | recurcheckvar = gfc_create_var (logical_type_node, "is_recursive"); |
d74d8807 | 6451 | TREE_STATIC (recurcheckvar) = 1; |
63ee5404 | 6452 | DECL_INITIAL (recurcheckvar) = logical_false_node; |
d74d8807 DK |
6453 | gfc_add_expr_to_block (&init, recurcheckvar); |
6454 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6455 | &sym->declared_at, msg); | |
63ee5404 | 6456 | gfc_add_modify (&init, recurcheckvar, logical_true_node); |
cede9502 | 6457 | free (msg); |
d74d8807 | 6458 | } |
6de9cd9a | 6459 | |
8b198102 FXC |
6460 | /* Check if an IEEE module is used in the procedure. If so, save |
6461 | the floating point state. */ | |
6462 | ieee = is_ieee_module_used (ns); | |
6463 | if (ieee) | |
3b7ea188 | 6464 | fpstate = gfc_save_fp_state (&init); |
8b198102 | 6465 | |
6de9cd9a DN |
6466 | /* Now generate the code for the body of this function. */ |
6467 | gfc_init_block (&body); | |
6468 | ||
6469 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
d74d8807 | 6470 | && sym->attr.subroutine) |
6de9cd9a DN |
6471 | { |
6472 | tree alternate_return; | |
5f20c93a | 6473 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
726a989a | 6474 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
6de9cd9a DN |
6475 | } |
6476 | ||
3d79abbd PB |
6477 | if (ns->entries) |
6478 | { | |
6479 | /* Jump to the correct entry point. */ | |
6480 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6481 | gfc_add_expr_to_block (&body, tmp); | |
6482 | } | |
6483 | ||
cadb8f42 DK |
6484 | /* If bounds-checking is enabled, generate code to check passed in actual |
6485 | arguments against the expected dummy argument attributes (e.g. string | |
6486 | lengths). */ | |
975d3303 | 6487 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
cadb8f42 DK |
6488 | add_argument_checking (&body, sym); |
6489 | ||
dc7a8b4b | 6490 | finish_oacc_declare (ns, sym, false); |
41dbbb37 | 6491 | |
6de9cd9a DN |
6492 | tmp = gfc_trans_code (ns->code); |
6493 | gfc_add_expr_to_block (&body, tmp); | |
6494 | ||
c16126ac AV |
6495 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6496 | || (sym->result && sym->result != sym | |
6497 | && sym->result->ts.type == BT_DERIVED | |
6498 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
6de9cd9a | 6499 | { |
c16126ac | 6500 | bool artificial_result_decl = false; |
d74d8807 | 6501 | tree result = get_proc_result (sym); |
c16126ac AV |
6502 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6503 | ||
6504 | /* Make sure that a function returning an object with | |
6505 | alloc/pointer_components always has a result, where at least | |
6506 | the allocatable/pointer components are set to zero. */ | |
6507 | if (result == NULL_TREE && sym->attr.function | |
6508 | && ((sym->result->ts.type == BT_DERIVED | |
6509 | && (sym->attr.allocatable | |
6510 | || sym->attr.pointer | |
6511 | || sym->result->ts.u.derived->attr.alloc_comp | |
6512 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6513 | || (sym->result->ts.type == BT_CLASS | |
6514 | && (CLASS_DATA (sym)->attr.allocatable | |
6515 | || CLASS_DATA (sym)->attr.class_pointer | |
6516 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6517 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6518 | { | |
6519 | artificial_result_decl = true; | |
6520 | result = gfc_get_fake_result_decl (sym, 0); | |
6521 | } | |
6de9cd9a | 6522 | |
7a3eeb85 | 6523 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
5046aff5 | 6524 | { |
f18694de TB |
6525 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6526 | && sym->result == sym) | |
6527 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6528 | null_pointer_node)); | |
7a3eeb85 JW |
6529 | else if (sym->ts.type == BT_CLASS |
6530 | && CLASS_DATA (sym)->attr.allocatable | |
102344e2 TB |
6531 | && CLASS_DATA (sym)->attr.dimension == 0 |
6532 | && sym->result == sym) | |
7a3eeb85 JW |
6533 | { |
6534 | tmp = CLASS_DATA (sym)->backend_decl; | |
6535 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6536 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6537 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6538 | null_pointer_node)); | |
6539 | } | |
f18694de | 6540 | else if (sym->ts.type == BT_DERIVED |
7a3eeb85 | 6541 | && !sym->attr.allocatable) |
5b130807 | 6542 | { |
c16126ac AV |
6543 | gfc_expr *init_exp; |
6544 | /* Arrays are not initialized using the default initializer of | |
6545 | their elements. Therefore only check if a default | |
6546 | initializer is available when the result is scalar. */ | |
7fc61626 FR |
6547 | init_exp = rsym->as ? NULL |
6548 | : gfc_generate_initializer (&rsym->ts, true); | |
c16126ac AV |
6549 | if (init_exp) |
6550 | { | |
6551 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6552 | gfc_free_expr (init_exp); | |
6553 | gfc_add_expr_to_block (&init, tmp); | |
6554 | } | |
6555 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6556 | { | |
6557 | rank = rsym->as ? rsym->as->rank : 0; | |
6558 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6559 | rank); | |
6560 | gfc_prepend_expr_to_block (&body, tmp); | |
6561 | } | |
5b130807 | 6562 | } |
958dd42b | 6563 | } |
cf7d2eb0 | 6564 | |
c16126ac | 6565 | if (result == NULL_TREE || artificial_result_decl) |
766d0c8c DF |
6566 | { |
6567 | /* TODO: move to the appropriate place in resolve.c. */ | |
134d2354 | 6568 | if (warn_return_type > 0 && sym == sym->result) |
48749dbc MLI |
6569 | gfc_warning (OPT_Wreturn_type, |
6570 | "Return value of function %qs at %L not set", | |
766d0c8c | 6571 | sym->name, &sym->declared_at); |
134d2354 | 6572 | if (warn_return_type > 0) |
fba5ace0 | 6573 | TREE_NO_WARNING(sym->backend_decl) = 1; |
766d0c8c | 6574 | } |
c16126ac | 6575 | if (result != NULL_TREE) |
d74d8807 | 6576 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
6de9cd9a | 6577 | } |
d74d8807 DK |
6578 | |
6579 | gfc_init_block (&cleanup); | |
6580 | ||
6581 | /* Reset recursion-check variable. */ | |
6582 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
c61819ff | 6583 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
cf7d2eb0 | 6584 | { |
63ee5404 | 6585 | gfc_add_modify (&cleanup, recurcheckvar, logical_false_node); |
d74d8807 | 6586 | recurcheckvar = NULL; |
cf7d2eb0 | 6587 | } |
5046aff5 | 6588 | |
8b198102 FXC |
6589 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6590 | if (ieee) | |
3b7ea188 | 6591 | gfc_restore_fp_state (&cleanup, fpstate); |
8b198102 | 6592 | |
d74d8807 DK |
6593 | /* Finish the function body and add init and cleanup code. */ |
6594 | tmp = gfc_finish_block (&body); | |
6595 | gfc_start_wrapped_block (&try_block, tmp); | |
6596 | /* Add code to create and cleanup arrays. */ | |
6597 | gfc_trans_deferred_vars (sym, &try_block); | |
6598 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6599 | gfc_finish_block (&cleanup)); | |
6de9cd9a DN |
6600 | |
6601 | /* Add all the decls we created during processing. */ | |
79a592e3 | 6602 | decl = nreverse (saved_function_decls); |
6de9cd9a DN |
6603 | while (decl) |
6604 | { | |
6605 | tree next; | |
6606 | ||
910ad8de NF |
6607 | next = DECL_CHAIN (decl); |
6608 | DECL_CHAIN (decl) = NULL_TREE; | |
755634e6 | 6609 | pushdecl (decl); |
6de9cd9a DN |
6610 | decl = next; |
6611 | } | |
6612 | saved_function_decls = NULL_TREE; | |
6613 | ||
d74d8807 | 6614 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
c7c79a09 | 6615 | decl = getdecls (); |
6de9cd9a DN |
6616 | |
6617 | /* Finish off this function and send it for code generation. */ | |
87a60f68 | 6618 | poplevel (1, 1); |
6de9cd9a DN |
6619 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6620 | ||
c7c79a09 JJ |
6621 | DECL_SAVED_TREE (fndecl) |
6622 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6623 | DECL_INITIAL (fndecl)); | |
6624 | ||
77f2a970 JJ |
6625 | if (nonlocal_dummy_decls) |
6626 | { | |
6627 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6628 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
6e2830c3 | 6629 | delete nonlocal_dummy_decl_pset; |
77f2a970 JJ |
6630 | nonlocal_dummy_decls = NULL; |
6631 | nonlocal_dummy_decl_pset = NULL; | |
6632 | } | |
6633 | ||
6de9cd9a DN |
6634 | /* Output the GENERIC tree. */ |
6635 | dump_function (TDI_original, fndecl); | |
6636 | ||
6637 | /* Store the end of the function, so that we get good line number | |
6638 | info for the epilogue. */ | |
6639 | cfun->function_end_locus = input_location; | |
6640 | ||
6641 | /* We're leaving the context of this function, so zap cfun. | |
6642 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6643 | tree_rest_of_compilation. */ | |
db2960f4 | 6644 | set_cfun (NULL); |
6de9cd9a DN |
6645 | |
6646 | if (old_context) | |
6647 | { | |
6648 | pop_function_context (); | |
6649 | saved_function_decls = saved_parent_function_decls; | |
6650 | } | |
6651 | current_function_decl = old_context; | |
6652 | ||
15682f24 MJ |
6653 | if (decl_function_context (fndecl)) |
6654 | { | |
6655 | /* Register this function with cgraph just far enough to get it | |
6656 | added to our parent's nested function list. | |
6657 | If there are static coarrays in this function, the nested _caf_init | |
6658 | function has already called cgraph_create_node, which also created | |
6659 | the cgraph node for this function. */ | |
f19626cf | 6660 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
e7980add | 6661 | (void) cgraph_node::get_create (fndecl); |
15682f24 | 6662 | } |
6de9cd9a | 6663 | else |
3dafb85c | 6664 | cgraph_node::finalize_function (fndecl, true); |
a64f5186 JJ |
6665 | |
6666 | gfc_trans_use_stmts (ns); | |
bd11e37d | 6667 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
092231a8 TB |
6668 | |
6669 | if (sym->attr.is_main_program) | |
6670 | create_main_function (fndecl); | |
d74d8807 DK |
6671 | |
6672 | current_procedure_symbol = previous_procedure_symbol; | |
6de9cd9a DN |
6673 | } |
6674 | ||
092231a8 | 6675 | |
6de9cd9a DN |
6676 | void |
6677 | gfc_generate_constructors (void) | |
6678 | { | |
6e45f57b | 6679 | gcc_assert (gfc_static_ctors == NULL_TREE); |
6de9cd9a DN |
6680 | #if 0 |
6681 | tree fnname; | |
6682 | tree type; | |
6683 | tree fndecl; | |
6684 | tree decl; | |
6685 | tree tmp; | |
6686 | ||
6687 | if (gfc_static_ctors == NULL_TREE) | |
6688 | return; | |
6689 | ||
5880f14f | 6690 | fnname = get_file_function_name ("I"); |
b64fca63 | 6691 | type = build_function_type_list (void_type_node, NULL_TREE); |
6de9cd9a | 6692 | |
c2255bc4 AH |
6693 | fndecl = build_decl (input_location, |
6694 | FUNCTION_DECL, fnname, type); | |
6de9cd9a DN |
6695 | TREE_PUBLIC (fndecl) = 1; |
6696 | ||
c2255bc4 AH |
6697 | decl = build_decl (input_location, |
6698 | RESULT_DECL, NULL_TREE, void_type_node); | |
b785f485 RH |
6699 | DECL_ARTIFICIAL (decl) = 1; |
6700 | DECL_IGNORED_P (decl) = 1; | |
6de9cd9a DN |
6701 | DECL_CONTEXT (decl) = fndecl; |
6702 | DECL_RESULT (fndecl) = decl; | |
6703 | ||
6704 | pushdecl (fndecl); | |
6705 | ||
6706 | current_function_decl = fndecl; | |
6707 | ||
0e6df31e | 6708 | rest_of_decl_compilation (fndecl, 1, 0); |
6de9cd9a | 6709 | |
0e6df31e | 6710 | make_decl_rtl (fndecl); |
6de9cd9a | 6711 | |
b6b27e98 | 6712 | allocate_struct_function (fndecl, false); |
6de9cd9a | 6713 | |
87a60f68 | 6714 | pushlevel (); |
6de9cd9a DN |
6715 | |
6716 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6717 | { | |
db3927fb AH |
6718 | tmp = build_call_expr_loc (input_location, |
6719 | TREE_VALUE (gfc_static_ctors), 0); | |
c2255bc4 | 6720 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
6de9cd9a DN |
6721 | } |
6722 | ||
c7c79a09 | 6723 | decl = getdecls (); |
87a60f68 | 6724 | poplevel (1, 1); |
6de9cd9a DN |
6725 | |
6726 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
c7c79a09 JJ |
6727 | DECL_SAVED_TREE (fndecl) |
6728 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6729 | DECL_INITIAL (fndecl)); | |
6de9cd9a DN |
6730 | |
6731 | free_after_parsing (cfun); | |
6732 | free_after_compilation (cfun); | |
6733 | ||
0f0377f6 | 6734 | tree_rest_of_compilation (fndecl); |
6de9cd9a DN |
6735 | |
6736 | current_function_decl = NULL_TREE; | |
6737 | #endif | |
6738 | } | |
6739 | ||
0de4325e TS |
6740 | /* Translates a BLOCK DATA program unit. This means emitting the |
6741 | commons contained therein plus their initializations. We also emit | |
6742 | a globally visible symbol to make sure that each BLOCK DATA program | |
6743 | unit remains unique. */ | |
6744 | ||
6745 | void | |
6746 | gfc_generate_block_data (gfc_namespace * ns) | |
6747 | { | |
6748 | tree decl; | |
6749 | tree id; | |
6750 | ||
c8cc8542 PB |
6751 | /* Tell the backend the source location of the block data. */ |
6752 | if (ns->proc_name) | |
6753 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6754 | else | |
6755 | gfc_set_backend_locus (&gfc_current_locus); | |
6756 | ||
6757 | /* Process the DATA statements. */ | |
0de4325e TS |
6758 | gfc_trans_common (ns); |
6759 | ||
c8cc8542 PB |
6760 | /* Create a global symbol with the mane of the block data. This is to |
6761 | generate linker errors if the same name is used twice. It is never | |
6762 | really used. */ | |
0de4325e TS |
6763 | if (ns->proc_name) |
6764 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6765 | else | |
6766 | id = get_identifier ("__BLOCK_DATA__"); | |
6767 | ||
c2255bc4 AH |
6768 | decl = build_decl (input_location, |
6769 | VAR_DECL, id, gfc_array_index_type); | |
0de4325e TS |
6770 | TREE_PUBLIC (decl) = 1; |
6771 | TREE_STATIC (decl) = 1; | |
a64f5186 | 6772 | DECL_IGNORED_P (decl) = 1; |
0de4325e TS |
6773 | |
6774 | pushdecl (decl); | |
6775 | rest_of_decl_compilation (decl, 1, 0); | |
6776 | } | |
6777 | ||
83d890b9 | 6778 | |
9abe5e56 DK |
6779 | /* Process the local variables of a BLOCK construct. */ |
6780 | ||
6781 | void | |
6312ef45 | 6782 | gfc_process_block_locals (gfc_namespace* ns) |
9abe5e56 DK |
6783 | { |
6784 | tree decl; | |
6785 | ||
6786 | gcc_assert (saved_local_decls == NULL_TREE); | |
b8ff4e88 TB |
6787 | has_coarray_vars = false; |
6788 | ||
9abe5e56 DK |
6789 | generate_local_vars (ns); |
6790 | ||
f19626cf | 6791 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
6792 | generate_coarray_init (ns); |
6793 | ||
79a592e3 | 6794 | decl = nreverse (saved_local_decls); |
9abe5e56 DK |
6795 | while (decl) |
6796 | { | |
6797 | tree next; | |
6798 | ||
910ad8de NF |
6799 | next = DECL_CHAIN (decl); |
6800 | DECL_CHAIN (decl) = NULL_TREE; | |
9abe5e56 DK |
6801 | pushdecl (decl); |
6802 | decl = next; | |
6803 | } | |
6804 | saved_local_decls = NULL_TREE; | |
6805 | } | |
6806 | ||
6807 | ||
6de9cd9a | 6808 | #include "gt-fortran-trans-decl.h" |