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Commit | Line | Data |
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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 | 125 | |
60386f50 TB |
126 | /* Coarray run-time library function decls. */ |
127 | tree gfor_fndecl_caf_init; | |
128 | tree gfor_fndecl_caf_finalize; | |
a8a5f4a9 TB |
129 | tree gfor_fndecl_caf_this_image; |
130 | tree gfor_fndecl_caf_num_images; | |
b8ff4e88 | 131 | tree gfor_fndecl_caf_register; |
5d81ddd0 | 132 | tree gfor_fndecl_caf_deregister; |
b5116268 TB |
133 | tree gfor_fndecl_caf_get; |
134 | tree gfor_fndecl_caf_send; | |
135 | tree gfor_fndecl_caf_sendget; | |
3c9f5092 AV |
136 | tree gfor_fndecl_caf_get_by_ref; |
137 | tree gfor_fndecl_caf_send_by_ref; | |
138 | tree gfor_fndecl_caf_sendget_by_ref; | |
60386f50 | 139 | tree gfor_fndecl_caf_sync_all; |
9315dff0 | 140 | tree gfor_fndecl_caf_sync_memory; |
60386f50 | 141 | tree gfor_fndecl_caf_sync_images; |
0daa7ed9 AF |
142 | tree gfor_fndecl_caf_stop_str; |
143 | tree gfor_fndecl_caf_stop_numeric; | |
60386f50 TB |
144 | tree gfor_fndecl_caf_error_stop; |
145 | tree gfor_fndecl_caf_error_stop_str; | |
42a8246d TB |
146 | tree gfor_fndecl_caf_atomic_def; |
147 | tree gfor_fndecl_caf_atomic_ref; | |
148 | tree gfor_fndecl_caf_atomic_cas; | |
149 | tree gfor_fndecl_caf_atomic_op; | |
bc0229f9 TB |
150 | tree gfor_fndecl_caf_lock; |
151 | tree gfor_fndecl_caf_unlock; | |
5df445a2 TB |
152 | tree gfor_fndecl_caf_event_post; |
153 | tree gfor_fndecl_caf_event_wait; | |
154 | tree gfor_fndecl_caf_event_query; | |
ef78bc3c AV |
155 | tree gfor_fndecl_caf_fail_image; |
156 | tree gfor_fndecl_caf_failed_images; | |
157 | tree gfor_fndecl_caf_image_status; | |
158 | tree gfor_fndecl_caf_stopped_images; | |
f8862a1b DR |
159 | tree gfor_fndecl_caf_form_team; |
160 | tree gfor_fndecl_caf_change_team; | |
161 | tree gfor_fndecl_caf_end_team; | |
162 | tree gfor_fndecl_caf_sync_team; | |
163 | tree gfor_fndecl_caf_get_team; | |
164 | tree gfor_fndecl_caf_team_number; | |
a16ee379 | 165 | tree gfor_fndecl_co_broadcast; |
d62cf3df TB |
166 | tree gfor_fndecl_co_max; |
167 | tree gfor_fndecl_co_min; | |
229c5919 | 168 | tree gfor_fndecl_co_reduce; |
d62cf3df | 169 | tree gfor_fndecl_co_sum; |
ba85c8c3 | 170 | tree gfor_fndecl_caf_is_present; |
60386f50 | 171 | |
60386f50 | 172 | |
6de9cd9a DN |
173 | /* Math functions. Many other math functions are handled in |
174 | trans-intrinsic.c. */ | |
175 | ||
644cb69f | 176 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
6de9cd9a DN |
177 | tree gfor_fndecl_math_ishftc4; |
178 | tree gfor_fndecl_math_ishftc8; | |
644cb69f | 179 | tree gfor_fndecl_math_ishftc16; |
6de9cd9a DN |
180 | |
181 | ||
182 | /* String functions. */ | |
183 | ||
6de9cd9a DN |
184 | tree gfor_fndecl_compare_string; |
185 | tree gfor_fndecl_concat_string; | |
186 | tree gfor_fndecl_string_len_trim; | |
187 | tree gfor_fndecl_string_index; | |
188 | tree gfor_fndecl_string_scan; | |
189 | tree gfor_fndecl_string_verify; | |
190 | tree gfor_fndecl_string_trim; | |
2263c775 | 191 | tree gfor_fndecl_string_minmax; |
6de9cd9a DN |
192 | tree gfor_fndecl_adjustl; |
193 | tree gfor_fndecl_adjustr; | |
d393bbd7 | 194 | tree gfor_fndecl_select_string; |
374929b2 FXC |
195 | tree gfor_fndecl_compare_string_char4; |
196 | tree gfor_fndecl_concat_string_char4; | |
197 | tree gfor_fndecl_string_len_trim_char4; | |
198 | tree gfor_fndecl_string_index_char4; | |
199 | tree gfor_fndecl_string_scan_char4; | |
200 | tree gfor_fndecl_string_verify_char4; | |
201 | tree gfor_fndecl_string_trim_char4; | |
202 | tree gfor_fndecl_string_minmax_char4; | |
203 | tree gfor_fndecl_adjustl_char4; | |
204 | tree gfor_fndecl_adjustr_char4; | |
d393bbd7 FXC |
205 | tree gfor_fndecl_select_string_char4; |
206 | ||
207 | ||
208 | /* Conversion between character kinds. */ | |
209 | tree gfor_fndecl_convert_char1_to_char4; | |
210 | tree gfor_fndecl_convert_char4_to_char1; | |
6de9cd9a DN |
211 | |
212 | ||
213 | /* Other misc. runtime library functions. */ | |
6de9cd9a DN |
214 | tree gfor_fndecl_size0; |
215 | tree gfor_fndecl_size1; | |
b41b2534 | 216 | tree gfor_fndecl_iargc; |
17164de4 SK |
217 | tree gfor_fndecl_kill; |
218 | tree gfor_fndecl_kill_sub; | |
219 | ||
6de9cd9a | 220 | |
a39fafac FXC |
221 | /* Intrinsic functions implemented in Fortran. */ |
222 | tree gfor_fndecl_sc_kind; | |
6de9cd9a DN |
223 | tree gfor_fndecl_si_kind; |
224 | tree gfor_fndecl_sr_kind; | |
225 | ||
5a0aad31 FXC |
226 | /* BLAS gemm functions. */ |
227 | tree gfor_fndecl_sgemm; | |
228 | tree gfor_fndecl_dgemm; | |
229 | tree gfor_fndecl_cgemm; | |
230 | tree gfor_fndecl_zgemm; | |
231 | ||
6de9cd9a DN |
232 | |
233 | static void | |
234 | gfc_add_decl_to_parent_function (tree decl) | |
235 | { | |
6e45f57b | 236 | gcc_assert (decl); |
6de9cd9a DN |
237 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
238 | DECL_NONLOCAL (decl) = 1; | |
910ad8de | 239 | DECL_CHAIN (decl) = saved_parent_function_decls; |
6de9cd9a DN |
240 | saved_parent_function_decls = decl; |
241 | } | |
242 | ||
243 | void | |
244 | gfc_add_decl_to_function (tree decl) | |
245 | { | |
6e45f57b | 246 | gcc_assert (decl); |
6de9cd9a DN |
247 | TREE_USED (decl) = 1; |
248 | DECL_CONTEXT (decl) = current_function_decl; | |
910ad8de | 249 | DECL_CHAIN (decl) = saved_function_decls; |
6de9cd9a DN |
250 | saved_function_decls = decl; |
251 | } | |
252 | ||
9abe5e56 DK |
253 | static void |
254 | add_decl_as_local (tree decl) | |
255 | { | |
256 | gcc_assert (decl); | |
257 | TREE_USED (decl) = 1; | |
258 | DECL_CONTEXT (decl) = current_function_decl; | |
910ad8de | 259 | DECL_CHAIN (decl) = saved_local_decls; |
9abe5e56 DK |
260 | saved_local_decls = decl; |
261 | } | |
262 | ||
6de9cd9a | 263 | |
c006df4e SB |
264 | /* Build a backend label declaration. Set TREE_USED for named labels. |
265 | The context of the label is always the current_function_decl. All | |
266 | labels are marked artificial. */ | |
6de9cd9a DN |
267 | |
268 | tree | |
269 | gfc_build_label_decl (tree label_id) | |
270 | { | |
271 | /* 2^32 temporaries should be enough. */ | |
272 | static unsigned int tmp_num = 1; | |
273 | tree label_decl; | |
274 | char *label_name; | |
275 | ||
276 | if (label_id == NULL_TREE) | |
277 | { | |
278 | /* Build an internal label name. */ | |
279 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
280 | label_id = get_identifier (label_name); | |
281 | } | |
282 | else | |
283 | label_name = NULL; | |
284 | ||
285 | /* Build the LABEL_DECL node. Labels have no type. */ | |
c2255bc4 AH |
286 | label_decl = build_decl (input_location, |
287 | LABEL_DECL, label_id, void_type_node); | |
6de9cd9a | 288 | DECL_CONTEXT (label_decl) = current_function_decl; |
899ca90e | 289 | SET_DECL_MODE (label_decl, VOIDmode); |
6de9cd9a | 290 | |
c006df4e SB |
291 | /* We always define the label as used, even if the original source |
292 | file never references the label. We don't want all kinds of | |
293 | spurious warnings for old-style Fortran code with too many | |
294 | labels. */ | |
295 | TREE_USED (label_decl) = 1; | |
6de9cd9a | 296 | |
c006df4e | 297 | DECL_ARTIFICIAL (label_decl) = 1; |
6de9cd9a DN |
298 | return label_decl; |
299 | } | |
300 | ||
301 | ||
c8cc8542 PB |
302 | /* Set the backend source location of a decl. */ |
303 | ||
304 | void | |
305 | gfc_set_decl_location (tree decl, locus * loc) | |
306 | { | |
c8cc8542 | 307 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
c8cc8542 PB |
308 | } |
309 | ||
310 | ||
6de9cd9a DN |
311 | /* Return the backend label declaration for a given label structure, |
312 | or create it if it doesn't exist yet. */ | |
313 | ||
314 | tree | |
315 | gfc_get_label_decl (gfc_st_label * lp) | |
316 | { | |
6de9cd9a DN |
317 | if (lp->backend_decl) |
318 | return lp->backend_decl; | |
319 | else | |
320 | { | |
321 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
322 | tree label_decl; | |
323 | ||
324 | /* Validate the label declaration from the front end. */ | |
6e45f57b | 325 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
6de9cd9a DN |
326 | |
327 | /* Build a mangled name for the label. */ | |
328 | sprintf (label_name, "__label_%.6d", lp->value); | |
329 | ||
330 | /* Build the LABEL_DECL node. */ | |
331 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
332 | ||
333 | /* Tell the debugger where the label came from. */ | |
f8d0aee5 | 334 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
c8cc8542 | 335 | gfc_set_decl_location (label_decl, &lp->where); |
6de9cd9a DN |
336 | else |
337 | DECL_ARTIFICIAL (label_decl) = 1; | |
338 | ||
339 | /* Store the label in the label list and return the LABEL_DECL. */ | |
340 | lp->backend_decl = label_decl; | |
341 | return label_decl; | |
342 | } | |
343 | } | |
344 | ||
345 | ||
346 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
347 | ||
348 | static tree | |
349 | gfc_sym_identifier (gfc_symbol * sym) | |
350 | { | |
a7ad6c2d TB |
351 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
352 | return (get_identifier ("MAIN__")); | |
353 | else | |
354 | return (get_identifier (sym->name)); | |
6de9cd9a DN |
355 | } |
356 | ||
357 | ||
358 | /* Construct mangled name from symbol name. */ | |
359 | ||
360 | static tree | |
361 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
362 | { | |
363 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
364 | ||
a8b3b0b6 CR |
365 | /* Prevent the mangling of identifiers that have an assigned |
366 | binding label (mainly those that are bind(c)). */ | |
62603fae JB |
367 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
368 | return get_identifier (sym->binding_label); | |
8b704316 | 369 | |
345bd7eb PT |
370 | if (!sym->fn_result_spec) |
371 | { | |
372 | if (sym->module == NULL) | |
373 | return gfc_sym_identifier (sym); | |
374 | else | |
375 | { | |
376 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); | |
377 | return get_identifier (name); | |
378 | } | |
379 | } | |
6de9cd9a DN |
380 | else |
381 | { | |
345bd7eb PT |
382 | /* This is an entity that is actually local to a module procedure |
383 | that appears in the result specification expression. Since | |
384 | sym->module will be a zero length string, we use ns->proc_name | |
385 | instead. */ | |
386 | if (sym->ns->proc_name && sym->ns->proc_name->module) | |
387 | { | |
388 | snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s", | |
389 | sym->ns->proc_name->module, | |
390 | sym->ns->proc_name->name, | |
391 | sym->name); | |
392 | return get_identifier (name); | |
393 | } | |
394 | else | |
395 | { | |
396 | snprintf (name, sizeof name, "__%s_PROC_%s", | |
397 | sym->ns->proc_name->name, sym->name); | |
398 | return get_identifier (name); | |
399 | } | |
6de9cd9a DN |
400 | } |
401 | } | |
402 | ||
403 | ||
404 | /* Construct mangled function name from symbol name. */ | |
405 | ||
406 | static tree | |
407 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
408 | { | |
409 | int has_underscore; | |
410 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
411 | ||
a8b3b0b6 CR |
412 | /* It may be possible to simply use the binding label if it's |
413 | provided, and remove the other checks. Then we could use it | |
414 | for other things if we wished. */ | |
415 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
62603fae | 416 | sym->binding_label) |
a8b3b0b6 CR |
417 | /* use the binding label rather than the mangled name */ |
418 | return get_identifier (sym->binding_label); | |
419 | ||
4668d6f9 | 420 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
c89686a8 PT |
421 | || (sym->module != NULL && (sym->attr.external |
422 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4668d6f9 | 423 | && !sym->attr.module_procedure) |
6de9cd9a | 424 | { |
ecf24057 FXC |
425 | /* Main program is mangled into MAIN__. */ |
426 | if (sym->attr.is_main_program) | |
427 | return get_identifier ("MAIN__"); | |
428 | ||
429 | /* Intrinsic procedures are never mangled. */ | |
430 | if (sym->attr.proc == PROC_INTRINSIC) | |
6de9cd9a DN |
431 | return get_identifier (sym->name); |
432 | ||
c61819ff | 433 | if (flag_underscoring) |
6de9cd9a DN |
434 | { |
435 | has_underscore = strchr (sym->name, '_') != 0; | |
203c7ebf | 436 | if (flag_second_underscore && has_underscore) |
6de9cd9a DN |
437 | snprintf (name, sizeof name, "%s__", sym->name); |
438 | else | |
439 | snprintf (name, sizeof name, "%s_", sym->name); | |
440 | return get_identifier (name); | |
441 | } | |
442 | else | |
443 | return get_identifier (sym->name); | |
444 | } | |
445 | else | |
446 | { | |
9998ef84 | 447 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
6de9cd9a DN |
448 | return get_identifier (name); |
449 | } | |
450 | } | |
451 | ||
452 | ||
43ce5e52 FXC |
453 | void |
454 | gfc_set_decl_assembler_name (tree decl, tree name) | |
455 | { | |
456 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
457 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
458 | } | |
459 | ||
460 | ||
bae88af6 TS |
461 | /* Returns true if a variable of specified size should go on the stack. */ |
462 | ||
463 | int | |
464 | gfc_can_put_var_on_stack (tree size) | |
465 | { | |
466 | unsigned HOST_WIDE_INT low; | |
467 | ||
468 | if (!INTEGER_CST_P (size)) | |
469 | return 0; | |
470 | ||
203c7ebf | 471 | if (flag_max_stack_var_size < 0) |
bae88af6 TS |
472 | return 1; |
473 | ||
807e902e | 474 | if (!tree_fits_uhwi_p (size)) |
bae88af6 TS |
475 | return 0; |
476 | ||
477 | low = TREE_INT_CST_LOW (size); | |
203c7ebf | 478 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
bae88af6 TS |
479 | return 0; |
480 | ||
481 | /* TODO: Set a per-function stack size limit. */ | |
482 | ||
483 | return 1; | |
484 | } | |
485 | ||
486 | ||
b122dc6a JJ |
487 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
488 | an expression involving its corresponding pointer. There are | |
489 | 2 cases; one for variable size arrays, and one for everything else, | |
490 | because variable-sized arrays require one fewer level of | |
491 | indirection. */ | |
492 | ||
493 | static void | |
494 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
495 | { | |
496 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
497 | tree value; | |
498 | ||
499 | /* Parameters need to be dereferenced. */ | |
8b704316 | 500 | if (sym->cp_pointer->attr.dummy) |
db3927fb AH |
501 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
502 | ptr_decl); | |
b122dc6a JJ |
503 | |
504 | /* Check to see if we're dealing with a variable-sized array. */ | |
505 | if (sym->attr.dimension | |
8b704316 PT |
506 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
507 | { | |
831d7813 | 508 | /* These decls will be dereferenced later, so we don't dereference |
b122dc6a JJ |
509 | them here. */ |
510 | value = convert (TREE_TYPE (decl), ptr_decl); | |
511 | } | |
512 | else | |
513 | { | |
514 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
515 | ptr_decl); | |
db3927fb AH |
516 | value = build_fold_indirect_ref_loc (input_location, |
517 | ptr_decl); | |
b122dc6a JJ |
518 | } |
519 | ||
520 | SET_DECL_VALUE_EXPR (decl, value); | |
521 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
6c7a4dfd | 522 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b122dc6a JJ |
523 | } |
524 | ||
525 | ||
faf28b3a | 526 | /* Finish processing of a declaration without an initial value. */ |
6de9cd9a DN |
527 | |
528 | static void | |
faf28b3a | 529 | gfc_finish_decl (tree decl) |
6de9cd9a | 530 | { |
faf28b3a TS |
531 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
532 | || DECL_INITIAL (decl) == NULL_TREE); | |
6de9cd9a | 533 | |
d168c883 | 534 | if (!VAR_P (decl)) |
faf28b3a | 535 | return; |
6de9cd9a | 536 | |
faf28b3a TS |
537 | if (DECL_SIZE (decl) == NULL_TREE |
538 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
539 | layout_decl (decl, 0); | |
540 | ||
541 | /* A few consistency checks. */ | |
542 | /* A static variable with an incomplete type is an error if it is | |
543 | initialized. Also if it is not file scope. Otherwise, let it | |
544 | through, but if it is not `extern' then it may cause an error | |
545 | message later. */ | |
546 | /* An automatic variable with an incomplete type is an error. */ | |
547 | ||
548 | /* We should know the storage size. */ | |
549 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
8b704316 | 550 | || (TREE_STATIC (decl) |
faf28b3a TS |
551 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
552 | : DECL_EXTERNAL (decl))); | |
553 | ||
554 | /* The storage size should be constant. */ | |
555 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
556 | || !DECL_SIZE (decl) | |
557 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
6de9cd9a DN |
558 | } |
559 | ||
560 | ||
92d28cbb JJ |
561 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
562 | ||
563 | void | |
564 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
565 | { | |
566 | if (!attr->dimension && !attr->codimension) | |
567 | { | |
568 | /* Handle scalar allocatable variables. */ | |
569 | if (attr->allocatable) | |
570 | { | |
571 | gfc_allocate_lang_decl (decl); | |
572 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
573 | } | |
574 | /* Handle scalar pointer variables. */ | |
575 | if (attr->pointer) | |
576 | { | |
577 | gfc_allocate_lang_decl (decl); | |
578 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
579 | } | |
580 | } | |
581 | } | |
582 | ||
583 | ||
6de9cd9a DN |
584 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
585 | ||
586 | static void | |
587 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
588 | { | |
7b901ac4 | 589 | tree new_type; |
83d890b9 | 590 | |
b122dc6a | 591 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
83d890b9 | 592 | if (sym->attr.cray_pointee) |
b122dc6a | 593 | gfc_finish_cray_pointee (decl, sym); |
83d890b9 | 594 | |
63a1dd10 AV |
595 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
596 | This is the equivalent of the TARGET variables. | |
597 | We also need to set this if the variable is passed by reference in a | |
598 | CALL statement. */ | |
6de9cd9a DN |
599 | if (sym->attr.target) |
600 | TREE_ADDRESSABLE (decl) = 1; | |
63a1dd10 | 601 | |
6de9cd9a DN |
602 | /* If it wasn't used we wouldn't be getting it. */ |
603 | TREE_USED (decl) = 1; | |
604 | ||
1e4b1376 TB |
605 | if (sym->attr.flavor == FL_PARAMETER |
606 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
607 | TREE_READONLY (decl) = 1; | |
608 | ||
6de9cd9a DN |
609 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
610 | because this would add them to the current scope rather than the | |
611 | function scope. */ | |
612 | if (current_function_decl != NULL_TREE) | |
613 | { | |
6869c12d PT |
614 | if (sym->ns->proc_name |
615 | && (sym->ns->proc_name->backend_decl == current_function_decl | |
616 | || sym->result == sym)) | |
6de9cd9a | 617 | gfc_add_decl_to_function (decl); |
6869c12d PT |
618 | else if (sym->ns->proc_name |
619 | && sym->ns->proc_name->attr.flavor == FL_LABEL) | |
9abe5e56 DK |
620 | /* This is a BLOCK construct. */ |
621 | add_decl_as_local (decl); | |
6de9cd9a DN |
622 | else |
623 | gfc_add_decl_to_parent_function (decl); | |
624 | } | |
625 | ||
b122dc6a JJ |
626 | if (sym->attr.cray_pointee) |
627 | return; | |
628 | ||
5af6fa0b | 629 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
a8b3b0b6 CR |
630 | { |
631 | /* We need to put variables that are bind(c) into the common | |
632 | segment of the object file, because this is what C would do. | |
633 | gfortran would typically put them in either the BSS or | |
634 | initialized data segments, and only mark them as common if | |
635 | they were part of common blocks. However, if they are not put | |
93c71688 | 636 | into common space, then C cannot initialize global Fortran |
a8b3b0b6 CR |
637 | variables that it interoperates with and the draft says that |
638 | either Fortran or C should be able to initialize it (but not | |
639 | both, of course.) (J3/04-007, section 15.3). */ | |
640 | TREE_PUBLIC(decl) = 1; | |
641 | DECL_COMMON(decl) = 1; | |
a56ea54a PT |
642 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
643 | { | |
644 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
645 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
646 | } | |
a8b3b0b6 | 647 | } |
8b704316 | 648 | |
6de9cd9a | 649 | /* If a variable is USE associated, it's always external. */ |
4668d6f9 | 650 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
6de9cd9a DN |
651 | { |
652 | DECL_EXTERNAL (decl) = 1; | |
653 | TREE_PUBLIC (decl) = 1; | |
654 | } | |
345bd7eb PT |
655 | else if (sym->fn_result_spec && !sym->ns->proc_name->module) |
656 | { | |
657 | ||
658 | if (sym->ns->proc_name->attr.if_source != IFSRC_DECL) | |
659 | DECL_EXTERNAL (decl) = 1; | |
660 | else | |
661 | TREE_STATIC (decl) = 1; | |
662 | ||
663 | TREE_PUBLIC (decl) = 1; | |
664 | } | |
cb9e4f55 | 665 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
6de9cd9a | 666 | { |
adf3ed3f | 667 | /* TODO: Don't set sym->module for result or dummy variables. */ |
d48734ef | 668 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
58341a42 | 669 | |
a56ea54a | 670 | TREE_PUBLIC (decl) = 1; |
6de9cd9a | 671 | TREE_STATIC (decl) = 1; |
a56ea54a PT |
672 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
673 | { | |
674 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
675 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
676 | } | |
6de9cd9a DN |
677 | } |
678 | ||
b7b184a8 PT |
679 | /* Derived types are a bit peculiar because of the possibility of |
680 | a default initializer; this must be applied each time the variable | |
681 | comes into scope it therefore need not be static. These variables | |
682 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
df2fba9e | 683 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
b7b184a8 PT |
684 | SAVE_EXPLICIT. */ |
685 | if (!sym->attr.use_assoc | |
686 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
b8ff4e88 | 687 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
f19626cf | 688 | || (flag_coarray == GFC_FCOARRAY_LIB |
b8ff4e88 | 689 | && sym->attr.codimension && !sym->attr.allocatable))) |
6de9cd9a | 690 | TREE_STATIC (decl) = 1; |
775e6c3a | 691 | |
e73d3ca6 PT |
692 | /* If derived-type variables with DTIO procedures are not made static |
693 | some bits of code referencing them get optimized away. | |
694 | TODO Understand why this is so and fix it. */ | |
695 | if (!sym->attr.use_assoc | |
696 | && ((sym->ts.type == BT_DERIVED | |
697 | && sym->ts.u.derived->attr.has_dtio_procs) | |
698 | || (sym->ts.type == BT_CLASS | |
699 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
700 | TREE_STATIC (decl) = 1; | |
701 | ||
775e6c3a TB |
702 | if (sym->attr.volatile_) |
703 | { | |
775e6c3a | 704 | TREE_THIS_VOLATILE (decl) = 1; |
c28d1d9b | 705 | TREE_SIDE_EFFECTS (decl) = 1; |
7b901ac4 KG |
706 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
707 | TREE_TYPE (decl) = new_type; | |
8b704316 | 708 | } |
775e6c3a | 709 | |
6de9cd9a | 710 | /* Keep variables larger than max-stack-var-size off stack. */ |
6869c12d PT |
711 | if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive) |
712 | && !sym->attr.automatic | |
6de9cd9a | 713 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
9eccb94d JJ |
714 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
715 | /* Put variable length auto array pointers always into stack. */ | |
716 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
717 | || sym->attr.dimension == 0 | |
718 | || sym->as->type != AS_EXPLICIT | |
719 | || sym->attr.pointer | |
720 | || sym->attr.allocatable) | |
721 | && !DECL_ARTIFICIAL (decl)) | |
43068916 FR |
722 | { |
723 | TREE_STATIC (decl) = 1; | |
724 | ||
725 | /* Because the size of this variable isn't known until now, we may have | |
726 | greedily added an initializer to this variable (in build_init_assign) | |
727 | even though the max-stack-var-size indicates the variable should be | |
728 | static. Therefore we rip out the automatic initializer here and | |
729 | replace it with a static one. */ | |
730 | gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); | |
731 | gfc_code *prev = NULL; | |
732 | gfc_code *code = sym->ns->code; | |
733 | while (code && code->op == EXEC_INIT_ASSIGN) | |
734 | { | |
735 | /* Look for an initializer meant for this symbol. */ | |
736 | if (code->expr1->symtree == st) | |
737 | { | |
738 | if (prev) | |
739 | prev->next = code->next; | |
740 | else | |
741 | sym->ns->code = code->next; | |
742 | ||
743 | break; | |
744 | } | |
745 | ||
746 | prev = code; | |
747 | code = code->next; | |
748 | } | |
749 | if (code && code->op == EXEC_INIT_ASSIGN) | |
750 | { | |
751 | /* Keep the init expression for a static initializer. */ | |
752 | sym->value = code->expr2; | |
753 | /* Cleanup the defunct code object, without freeing the init expr. */ | |
754 | code->expr2 = NULL; | |
755 | gfc_free_statement (code); | |
756 | free (code); | |
757 | } | |
758 | } | |
6c7a4dfd JJ |
759 | |
760 | /* Handle threadprivate variables. */ | |
8893239d | 761 | if (sym->attr.threadprivate |
6c7a4dfd | 762 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
56363ffd | 763 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
92d28cbb JJ |
764 | |
765 | gfc_finish_decl_attrs (decl, &sym->attr); | |
6de9cd9a DN |
766 | } |
767 | ||
768 | ||
769 | /* Allocate the lang-specific part of a decl. */ | |
770 | ||
771 | void | |
772 | gfc_allocate_lang_decl (tree decl) | |
773 | { | |
92d28cbb JJ |
774 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
775 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
6de9cd9a DN |
776 | } |
777 | ||
778 | /* Remember a symbol to generate initialization/cleanup code at function | |
779 | entry/exit. */ | |
780 | ||
781 | static void | |
782 | gfc_defer_symbol_init (gfc_symbol * sym) | |
783 | { | |
784 | gfc_symbol *p; | |
785 | gfc_symbol *last; | |
786 | gfc_symbol *head; | |
787 | ||
788 | /* Don't add a symbol twice. */ | |
789 | if (sym->tlink) | |
790 | return; | |
791 | ||
792 | last = head = sym->ns->proc_name; | |
793 | p = last->tlink; | |
794 | ||
795 | /* Make sure that setup code for dummy variables which are used in the | |
796 | setup of other variables is generated first. */ | |
797 | if (sym->attr.dummy) | |
798 | { | |
799 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
800 | This is a circular list, so don't go past the head. */ | |
801 | while (p != head | |
802 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
803 | { | |
804 | last = p; | |
805 | p = p->tlink; | |
806 | } | |
807 | } | |
808 | /* Insert in between last and p. */ | |
809 | last->tlink = sym; | |
810 | sym->tlink = p; | |
811 | } | |
812 | ||
813 | ||
0101807c PT |
814 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
815 | backend_decl for a module symbol, if it all ready exists. If the | |
816 | module gsymbol does not exist, it is created. If the symbol does | |
817 | not exist, it is added to the gsymbol namespace. Returns true if | |
818 | an existing backend_decl is found. */ | |
819 | ||
820 | bool | |
821 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
822 | { | |
823 | gfc_gsymbol *gsym; | |
824 | gfc_symbol *s; | |
825 | gfc_symtree *st; | |
826 | ||
827 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
828 | ||
829 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
830 | { | |
831 | st = NULL; | |
832 | s = NULL; | |
833 | ||
f6288c24 | 834 | /* Check for a symbol with the same name. */ |
0101807c PT |
835 | if (gsym) |
836 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
837 | ||
838 | if (!s) | |
839 | { | |
840 | if (!gsym) | |
841 | { | |
f93af968 | 842 | gsym = gfc_get_gsymbol (sym->module, false); |
0101807c PT |
843 | gsym->type = GSYM_MODULE; |
844 | gsym->ns = gfc_get_namespace (NULL, 0); | |
845 | } | |
846 | ||
847 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
848 | st->n.sym = sym; | |
849 | sym->refs++; | |
850 | } | |
f6288c24 | 851 | else if (gfc_fl_struct (sym->attr.flavor)) |
0101807c | 852 | { |
c3f34952 TB |
853 | if (s && s->attr.flavor == FL_PROCEDURE) |
854 | { | |
855 | gfc_interface *intr; | |
856 | gcc_assert (s->attr.generic); | |
857 | for (intr = s->generic; intr; intr = intr->next) | |
f6288c24 | 858 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c3f34952 TB |
859 | { |
860 | s = intr->sym; | |
861 | break; | |
862 | } | |
863 | } | |
864 | ||
f6288c24 FR |
865 | /* Normally we can assume that s is a derived-type symbol since it |
866 | shares a name with the derived-type sym. However if sym is a | |
867 | STRUCTURE, it may in fact share a name with any other basic type | |
868 | variable. If s is in fact of derived type then we can continue | |
869 | looking for a duplicate type declaration. */ | |
870 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
871 | { | |
872 | s = s->ts.u.derived; | |
873 | } | |
874 | ||
875 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
876 | { | |
877 | if (s->attr.flavor == FL_UNION) | |
878 | s->backend_decl = gfc_get_union_type (s); | |
879 | else | |
880 | s->backend_decl = gfc_get_derived_type (s); | |
881 | } | |
0101807c PT |
882 | gfc_copy_dt_decls_ifequal (s, sym, true); |
883 | return true; | |
884 | } | |
885 | else if (s->backend_decl) | |
886 | { | |
f29bda83 | 887 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
0101807c PT |
888 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
889 | true); | |
890 | else if (sym->ts.type == BT_CHARACTER) | |
891 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
892 | sym->backend_decl = s->backend_decl; | |
893 | return true; | |
894 | } | |
895 | } | |
896 | return false; | |
897 | } | |
898 | ||
899 | ||
6de9cd9a DN |
900 | /* Create an array index type variable with function scope. */ |
901 | ||
902 | static tree | |
903 | create_index_var (const char * pfx, int nest) | |
904 | { | |
905 | tree decl; | |
906 | ||
907 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
908 | if (nest) | |
909 | gfc_add_decl_to_parent_function (decl); | |
910 | else | |
911 | gfc_add_decl_to_function (decl); | |
912 | return decl; | |
913 | } | |
914 | ||
915 | ||
916 | /* Create variables to hold all the non-constant bits of info for a | |
917 | descriptorless array. Remember these in the lang-specific part of the | |
918 | type. */ | |
919 | ||
920 | static void | |
921 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
922 | { | |
923 | tree type; | |
924 | int dim; | |
925 | int nest; | |
52bf62f9 | 926 | gfc_namespace* procns; |
f3b0bb7a AV |
927 | symbol_attribute *array_attr; |
928 | gfc_array_spec *as; | |
929 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
6de9cd9a DN |
930 | |
931 | type = TREE_TYPE (decl); | |
f3b0bb7a AV |
932 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
933 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
6de9cd9a DN |
934 | |
935 | /* We just use the descriptor, if there is one. */ | |
936 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
937 | return; | |
938 | ||
6e45f57b | 939 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
52bf62f9 DK |
940 | procns = gfc_find_proc_namespace (sym->ns); |
941 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
6de9cd9a DN |
942 | && !sym->attr.contained; |
943 | ||
f3b0bb7a AV |
944 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
945 | && as->type != AS_ASSUMED_SHAPE | |
b8ff4e88 TB |
946 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
947 | { | |
948 | tree token; | |
213ab0a6 TB |
949 | tree token_type = build_qualified_type (pvoid_type_node, |
950 | TYPE_QUAL_RESTRICT); | |
951 | ||
952 | if (sym->module && (sym->attr.use_assoc | |
953 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
954 | { | |
955 | tree token_name | |
956 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
957 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
958 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
959 | token_type); | |
de1184c0 TB |
960 | if (sym->attr.use_assoc) |
961 | DECL_EXTERNAL (token) = 1; | |
962 | else | |
963 | TREE_STATIC (token) = 1; | |
964 | ||
a56ea54a PT |
965 | TREE_PUBLIC (token) = 1; |
966 | ||
967 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
968 | { | |
969 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
970 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
971 | } | |
213ab0a6 TB |
972 | } |
973 | else | |
de1184c0 TB |
974 | { |
975 | token = gfc_create_var_np (token_type, "caf_token"); | |
976 | TREE_STATIC (token) = 1; | |
977 | } | |
b8ff4e88 | 978 | |
b8ff4e88 TB |
979 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
980 | DECL_ARTIFICIAL (token) = 1; | |
de1184c0 TB |
981 | DECL_NONALIASED (token) = 1; |
982 | ||
983 | if (sym->module && !sym->attr.use_assoc) | |
984 | { | |
985 | pushdecl (token); | |
986 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
987 | gfc_module_add_decl (cur_module, token); | |
988 | } | |
118d5ed3 AV |
989 | else if (sym->attr.host_assoc |
990 | && TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
991 | != TRANSLATION_UNIT_DECL) | |
3083fc56 | 992 | gfc_add_decl_to_parent_function (token); |
de1184c0 TB |
993 | else |
994 | gfc_add_decl_to_function (token); | |
b8ff4e88 TB |
995 | } |
996 | ||
6de9cd9a DN |
997 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
998 | { | |
999 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
01306727 FXC |
1000 | { |
1001 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1002 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1003 | } | |
aa9c57ec | 1004 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
6de9cd9a | 1005 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
f3b0bb7a AV |
1006 | && (as->type != AS_ASSUMED_SIZE |
1007 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
01306727 FXC |
1008 | { |
1009 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1010 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1011 | } | |
6de9cd9a DN |
1012 | |
1013 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
01306727 FXC |
1014 | { |
1015 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
1016 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
1017 | } | |
6de9cd9a | 1018 | } |
a3935ffc TB |
1019 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
1020 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
1021 | { | |
1022 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
1023 | { | |
1024 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1025 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1026 | } | |
1027 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
1028 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
1029 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
1030 | { | |
1031 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1032 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1033 | } | |
1034 | } | |
6de9cd9a DN |
1035 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
1036 | { | |
1037 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
1038 | "offset"); | |
01306727 FXC |
1039 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
1040 | ||
6de9cd9a DN |
1041 | if (nest) |
1042 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1043 | else | |
1044 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1045 | } | |
417ab240 JJ |
1046 | |
1047 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
f3b0bb7a | 1048 | && as->type != AS_ASSUMED_SIZE) |
01306727 FXC |
1049 | { |
1050 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
1051 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
1052 | } | |
417ab240 JJ |
1053 | |
1054 | if (POINTER_TYPE_P (type)) | |
1055 | { | |
1056 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
1057 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
1058 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
1059 | type = TREE_TYPE (type); | |
1060 | } | |
1061 | ||
1062 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
1063 | { | |
1064 | tree size, range; | |
1065 | ||
bc98ed60 TB |
1066 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1067 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
417ab240 JJ |
1068 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
1069 | size); | |
1070 | TYPE_DOMAIN (type) = range; | |
1071 | layout_type (type); | |
1072 | } | |
25c29c56 | 1073 | |
eb401400 | 1074 | if (TYPE_NAME (type) != NULL_TREE && as->rank > 0 |
f3b0bb7a | 1075 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
d168c883 | 1076 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
25c29c56 JJ |
1077 | { |
1078 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1079 | ||
f3b0bb7a | 1080 | for (dim = 0; dim < as->rank - 1; dim++) |
25c29c56 JJ |
1081 | { |
1082 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1083 | gtype = TREE_TYPE (gtype); | |
1084 | } | |
1085 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1086 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
1087 | TYPE_NAME (type) = NULL_TREE; | |
1088 | } | |
1089 | ||
1090 | if (TYPE_NAME (type) == NULL_TREE) | |
1091 | { | |
1092 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
1093 | ||
f3b0bb7a | 1094 | for (dim = as->rank - 1; dim >= 0; dim--) |
25c29c56 | 1095 | { |
fcd3c5a9 JJ |
1096 | tree lbound, ubound; |
1097 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
1098 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
1099 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
25c29c56 | 1100 | gtype = build_array_type (gtype, rtype); |
e429bb49 JJ |
1101 | /* Ensure the bound variables aren't optimized out at -O0. |
1102 | For -O1 and above they often will be optimized out, but | |
cd3f04c8 JJ |
1103 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1104 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1105 | end up in debug info. */ | |
d168c883 JJ |
1106 | if (lbound |
1107 | && VAR_P (lbound) | |
1108 | && DECL_ARTIFICIAL (lbound) | |
1109 | && DECL_IGNORED_P (lbound)) | |
fcd3c5a9 JJ |
1110 | { |
1111 | if (DECL_NAME (lbound) | |
1112 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1113 | "lbound") != 0) | |
cd3f04c8 | 1114 | DECL_NAMELESS (lbound) = 1; |
fcd3c5a9 JJ |
1115 | DECL_IGNORED_P (lbound) = 0; |
1116 | } | |
d168c883 JJ |
1117 | if (ubound |
1118 | && VAR_P (ubound) | |
1119 | && DECL_ARTIFICIAL (ubound) | |
1120 | && DECL_IGNORED_P (ubound)) | |
fcd3c5a9 JJ |
1121 | { |
1122 | if (DECL_NAME (ubound) | |
1123 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1124 | "ubound") != 0) | |
cd3f04c8 | 1125 | DECL_NAMELESS (ubound) = 1; |
fcd3c5a9 JJ |
1126 | DECL_IGNORED_P (ubound) = 0; |
1127 | } | |
25c29c56 | 1128 | } |
c2255bc4 AH |
1129 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1130 | TYPE_DECL, NULL, gtype); | |
25c29c56 JJ |
1131 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1132 | } | |
6de9cd9a DN |
1133 | } |
1134 | ||
1135 | ||
1136 | /* For some dummy arguments we don't use the actual argument directly. | |
bae88af6 | 1137 | Instead we create a local decl and use that. This allows us to perform |
6de9cd9a DN |
1138 | initialization, and construct full type information. */ |
1139 | ||
1140 | static tree | |
1141 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1142 | { | |
1143 | tree decl; | |
1144 | tree type; | |
1145 | gfc_array_spec *as; | |
f3b0bb7a | 1146 | symbol_attribute *array_attr; |
6de9cd9a | 1147 | char *name; |
dcfef7d4 | 1148 | gfc_packed packed; |
6de9cd9a DN |
1149 | int n; |
1150 | bool known_size; | |
f3b0bb7a AV |
1151 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1152 | ||
1153 | /* Use the array as and attr. */ | |
1154 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1155 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1156 | ||
1157 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1158 | For class arrays the information if sym is an allocatable or pointer | |
1159 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1160 | too many reasons to be of use here). */ | |
1161 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1162 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1163 | || array_attr->allocatable | |
1164 | || (as && as->type == AS_ASSUMED_RANK)) | |
6de9cd9a DN |
1165 | return dummy; |
1166 | ||
f3b0bb7a AV |
1167 | /* Add to list of variables if not a fake result variable. |
1168 | These symbols are set on the symbol only, not on the class component. */ | |
6de9cd9a DN |
1169 | if (sym->attr.result || sym->attr.dummy) |
1170 | gfc_defer_symbol_init (sym); | |
1171 | ||
f3b0bb7a AV |
1172 | /* For a class array the array descriptor is in the _data component, while |
1173 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1174 | descriptor. */ | |
1175 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1176 | : TREE_TYPE (dummy)); | |
1177 | /* type now is the array descriptor w/o any indirection. */ | |
6e45f57b | 1178 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
f3b0bb7a | 1179 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
6de9cd9a | 1180 | |
f8d0aee5 | 1181 | /* Do we know the element size? */ |
6de9cd9a | 1182 | known_size = sym->ts.type != BT_CHARACTER |
bc21d315 | 1183 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
8b704316 | 1184 | |
f3b0bb7a | 1185 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
6de9cd9a DN |
1186 | { |
1187 | /* For descriptorless arrays with known element size the actual | |
1188 | argument is sufficient. */ | |
6de9cd9a DN |
1189 | gfc_build_qualified_array (dummy, sym); |
1190 | return dummy; | |
1191 | } | |
1192 | ||
6de9cd9a DN |
1193 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1194 | { | |
fa951694 | 1195 | /* Create a descriptorless array pointer. */ |
dcfef7d4 | 1196 | packed = PACKED_NO; |
1c3339af FXC |
1197 | |
1198 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1199 | are not repacked. */ | |
c61819ff | 1200 | if (!flag_repack_arrays || sym->attr.target) |
6de9cd9a DN |
1201 | { |
1202 | if (as->type == AS_ASSUMED_SIZE) | |
dcfef7d4 | 1203 | packed = PACKED_FULL; |
6de9cd9a DN |
1204 | } |
1205 | else | |
1206 | { | |
1207 | if (as->type == AS_EXPLICIT) | |
1208 | { | |
dcfef7d4 | 1209 | packed = PACKED_FULL; |
6de9cd9a DN |
1210 | for (n = 0; n < as->rank; n++) |
1211 | { | |
1212 | if (!(as->upper[n] | |
1213 | && as->lower[n] | |
1214 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1215 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
ae382ebd PCC |
1216 | { |
1217 | packed = PACKED_PARTIAL; | |
1218 | break; | |
1219 | } | |
6de9cd9a DN |
1220 | } |
1221 | } | |
1222 | else | |
dcfef7d4 | 1223 | packed = PACKED_PARTIAL; |
6de9cd9a DN |
1224 | } |
1225 | ||
f3b0bb7a AV |
1226 | /* For classarrays the element type is required, but |
1227 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1228 | type = is_classarray ? gfc_get_element_type (type) | |
1229 | : gfc_typenode_for_spec (&sym->ts); | |
1230 | type = gfc_get_nodesc_array_type (type, as, packed, | |
10174ddf | 1231 | !sym->attr.target); |
6de9cd9a DN |
1232 | } |
1233 | else | |
1234 | { | |
1235 | /* We now have an expression for the element size, so create a fully | |
1236 | qualified type. Reset sym->backend decl or this will just return the | |
1237 | old type. */ | |
3e978d30 | 1238 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
6de9cd9a DN |
1239 | sym->backend_decl = NULL_TREE; |
1240 | type = gfc_sym_type (sym); | |
dcfef7d4 | 1241 | packed = PACKED_FULL; |
6de9cd9a DN |
1242 | } |
1243 | ||
1244 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
c2255bc4 AH |
1245 | decl = build_decl (input_location, |
1246 | VAR_DECL, get_identifier (name), type); | |
6de9cd9a DN |
1247 | |
1248 | DECL_ARTIFICIAL (decl) = 1; | |
cd3f04c8 | 1249 | DECL_NAMELESS (decl) = 1; |
6de9cd9a DN |
1250 | TREE_PUBLIC (decl) = 0; |
1251 | TREE_STATIC (decl) = 0; | |
1252 | DECL_EXTERNAL (decl) = 0; | |
1253 | ||
879287d9 JJ |
1254 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1255 | if (sym->attr.optional) | |
1256 | TREE_NO_WARNING (decl) = 1; | |
1257 | ||
6de9cd9a DN |
1258 | /* We should never get deferred shape arrays here. We used to because of |
1259 | frontend bugs. */ | |
f3b0bb7a | 1260 | gcc_assert (as->type != AS_DEFERRED); |
6de9cd9a | 1261 | |
dcfef7d4 TS |
1262 | if (packed == PACKED_PARTIAL) |
1263 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1264 | else if (packed == PACKED_FULL) | |
1265 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
6de9cd9a DN |
1266 | |
1267 | gfc_build_qualified_array (decl, sym); | |
1268 | ||
1269 | if (DECL_LANG_SPECIFIC (dummy)) | |
1270 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1271 | else | |
1272 | gfc_allocate_lang_decl (decl); | |
1273 | ||
1274 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1275 | ||
1276 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1277 | || sym->attr.contained) | |
1278 | gfc_add_decl_to_function (decl); | |
1279 | else | |
1280 | gfc_add_decl_to_parent_function (decl); | |
1281 | ||
1282 | return decl; | |
1283 | } | |
1284 | ||
77f2a970 JJ |
1285 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1286 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1287 | pointing to the artificial variable for debug info purposes. */ | |
1288 | ||
1289 | static void | |
1290 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1291 | { | |
1292 | tree decl, dummy; | |
1293 | ||
1294 | if (! nonlocal_dummy_decl_pset) | |
6e2830c3 | 1295 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
77f2a970 | 1296 | |
6e2830c3 | 1297 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
77f2a970 JJ |
1298 | return; |
1299 | ||
1300 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
c2255bc4 | 1301 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
77f2a970 JJ |
1302 | TREE_TYPE (sym->backend_decl)); |
1303 | DECL_ARTIFICIAL (decl) = 0; | |
1304 | TREE_USED (decl) = 1; | |
1305 | TREE_PUBLIC (decl) = 0; | |
1306 | TREE_STATIC (decl) = 0; | |
1307 | DECL_EXTERNAL (decl) = 0; | |
1308 | if (DECL_BY_REFERENCE (dummy)) | |
1309 | DECL_BY_REFERENCE (decl) = 1; | |
1310 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1311 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1312 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1313 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
910ad8de | 1314 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
77f2a970 JJ |
1315 | nonlocal_dummy_decls = decl; |
1316 | } | |
6de9cd9a DN |
1317 | |
1318 | /* Return a constant or a variable to use as a string length. Does not | |
1319 | add the decl to the current scope. */ | |
1320 | ||
1321 | static tree | |
1322 | gfc_create_string_length (gfc_symbol * sym) | |
1323 | { | |
bc21d315 JW |
1324 | gcc_assert (sym->ts.u.cl); |
1325 | gfc_conv_const_charlen (sym->ts.u.cl); | |
cadb8f42 | 1326 | |
bc21d315 | 1327 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
6de9cd9a | 1328 | { |
cadb8f42 | 1329 | tree length; |
6052c299 | 1330 | const char *name; |
6de9cd9a | 1331 | |
26c08c03 TB |
1332 | /* The string length variable shall be in static memory if it is either |
1333 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1334 | relevant is "len=:" - otherwise, it is either a constant length or | |
1335 | it is an automatic variable. */ | |
36085529 TB |
1336 | bool static_length = sym->attr.save |
1337 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
203c7ebf | 1338 | || (flag_max_stack_var_size == 0 |
26c08c03 TB |
1339 | && sym->ts.deferred && !sym->attr.dummy |
1340 | && !sym->attr.result && !sym->attr.function); | |
36085529 TB |
1341 | |
1342 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1343 | variables as some systems do not support the "." in the assembler name. | |
1344 | For nonstatic variables, the "." does not appear in assembler. */ | |
1345 | if (static_length) | |
1346 | { | |
1347 | if (sym->module) | |
1348 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1349 | sym->name); | |
1350 | else | |
1351 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1352 | } | |
1353 | else if (sym->module) | |
6052c299 TB |
1354 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1355 | else | |
1356 | name = gfc_get_string (".%s", sym->name); | |
1357 | ||
c2255bc4 AH |
1358 | length = build_decl (input_location, |
1359 | VAR_DECL, get_identifier (name), | |
d7177ab2 | 1360 | gfc_charlen_type_node); |
6de9cd9a DN |
1361 | DECL_ARTIFICIAL (length) = 1; |
1362 | TREE_USED (length) = 1; | |
417ab240 JJ |
1363 | if (sym->ns->proc_name->tlink != NULL) |
1364 | gfc_defer_symbol_init (sym); | |
cadb8f42 | 1365 | |
bc21d315 | 1366 | sym->ts.u.cl->backend_decl = length; |
6052c299 | 1367 | |
36085529 | 1368 | if (static_length) |
6052c299 TB |
1369 | TREE_STATIC (length) = 1; |
1370 | ||
1371 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1372 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1373 | TREE_PUBLIC (length) = 1; | |
6de9cd9a DN |
1374 | } |
1375 | ||
bc21d315 JW |
1376 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1377 | return sym->ts.u.cl->backend_decl; | |
6de9cd9a DN |
1378 | } |
1379 | ||
910450c1 FW |
1380 | /* If a variable is assigned a label, we add another two auxiliary |
1381 | variables. */ | |
1382 | ||
1383 | static void | |
1384 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1385 | { | |
1386 | tree addr; | |
1387 | tree length; | |
1388 | tree decl; | |
1389 | ||
1390 | gcc_assert (sym->backend_decl); | |
1391 | ||
1392 | decl = sym->backend_decl; | |
1393 | gfc_allocate_lang_decl (decl); | |
1394 | GFC_DECL_ASSIGN (decl) = 1; | |
c2255bc4 AH |
1395 | length = build_decl (input_location, |
1396 | VAR_DECL, create_tmp_var_name (sym->name), | |
910450c1 | 1397 | gfc_charlen_type_node); |
c2255bc4 AH |
1398 | addr = build_decl (input_location, |
1399 | VAR_DECL, create_tmp_var_name (sym->name), | |
910450c1 FW |
1400 | pvoid_type_node); |
1401 | gfc_finish_var_decl (length, sym); | |
1402 | gfc_finish_var_decl (addr, sym); | |
1403 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1404 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1405 | target label's address. Otherwise, value is the length of a format string | |
1406 | and ASSIGN_ADDR is its address. */ | |
1407 | if (TREE_STATIC (length)) | |
df09d1d5 | 1408 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
910450c1 FW |
1409 | else |
1410 | gfc_defer_symbol_init (sym); | |
1411 | ||
1412 | GFC_DECL_STRING_LEN (decl) = length; | |
1413 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1414 | } | |
6de9cd9a | 1415 | |
08a6b8e0 TB |
1416 | |
1417 | static tree | |
1418 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1419 | { | |
1420 | unsigned id; | |
1421 | tree attr; | |
1422 | ||
1423 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1424 | if (sym_attr.ext_attr & (1 << id)) | |
1425 | { | |
1426 | attr = build_tree_list ( | |
1427 | get_identifier (ext_attr_list[id].middle_end_name), | |
1428 | NULL_TREE); | |
1429 | list = chainon (list, attr); | |
1430 | } | |
1431 | ||
b4c3a85b JJ |
1432 | if (sym_attr.omp_declare_target_link) |
1433 | list = tree_cons (get_identifier ("omp declare target link"), | |
1434 | NULL_TREE, list); | |
1435 | else if (sym_attr.omp_declare_target) | |
f014c653 JJ |
1436 | list = tree_cons (get_identifier ("omp declare target"), |
1437 | NULL_TREE, list); | |
1438 | ||
db941d7e CP |
1439 | if (sym_attr.oacc_function) |
1440 | { | |
1441 | tree dims = NULL_TREE; | |
1442 | int ix; | |
1443 | int level = sym_attr.oacc_function - 1; | |
1444 | ||
1445 | for (ix = GOMP_DIM_MAX; ix--;) | |
1446 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1447 | integer_zero_node, dims); | |
1448 | ||
1449 | list = tree_cons (get_identifier ("oacc function"), | |
1450 | dims, list); | |
1451 | } | |
1452 | ||
08a6b8e0 TB |
1453 | return list; |
1454 | } | |
1455 | ||
1456 | ||
1d0134b3 JW |
1457 | static void build_function_decl (gfc_symbol * sym, bool global); |
1458 | ||
1459 | ||
6de9cd9a DN |
1460 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1461 | exist. */ | |
1462 | ||
1463 | tree | |
1464 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1465 | { | |
1466 | tree decl; | |
1467 | tree length = NULL_TREE; | |
08a6b8e0 | 1468 | tree attributes; |
6de9cd9a | 1469 | int byref; |
be1f1ed9 | 1470 | bool intrinsic_array_parameter = false; |
431e4685 | 1471 | bool fun_or_res; |
6de9cd9a | 1472 | |
61321991 | 1473 | gcc_assert (sym->attr.referenced |
29be7510 JW |
1474 | || sym->attr.flavor == FL_PROCEDURE |
1475 | || sym->attr.use_assoc | |
4668d6f9 | 1476 | || sym->attr.used_in_submodule |
29be7510 JW |
1477 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1478 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1479 | && sym->backend_decl)); | |
6de9cd9a | 1480 | |
f64edc8b | 1481 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
6de9cd9a DN |
1482 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1483 | else | |
1484 | byref = 0; | |
1485 | ||
eece1eb9 PT |
1486 | /* Make sure that the vtab for the declared type is completed. */ |
1487 | if (sym->ts.type == BT_CLASS) | |
1488 | { | |
7a08eda1 | 1489 | gfc_component *c = CLASS_DATA (sym); |
eece1eb9 | 1490 | if (!c->ts.u.derived->backend_decl) |
58eba515 JW |
1491 | { |
1492 | gfc_find_derived_vtab (c->ts.u.derived); | |
1493 | gfc_get_derived_type (sym->ts.u.derived); | |
1494 | } | |
eece1eb9 PT |
1495 | } |
1496 | ||
5bab4c96 PT |
1497 | /* PDT parameterized array components and string_lengths must have the |
1498 | 'len' parameters substituted for the expressions appearing in the | |
1499 | declaration of the entity and memory allocated/deallocated. */ | |
1500 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1501 | && sym->param_list != NULL | |
1502 | && !(sym->attr.host_assoc || sym->attr.use_assoc || sym->attr.dummy)) | |
1503 | gfc_defer_symbol_init (sym); | |
1504 | ||
1505 | /* Dummy PDT 'len' parameters should be checked when they are explicit. */ | |
1506 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1507 | && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) | |
1508 | && sym->param_list != NULL | |
1509 | && sym->attr.dummy) | |
1510 | gfc_defer_symbol_init (sym); | |
1511 | ||
8d51f26f PT |
1512 | /* All deferred character length procedures need to retain the backend |
1513 | decl, which is a pointer to the character length in the caller's | |
1514 | namespace and to declare a local character length. */ | |
1515 | if (!byref && sym->attr.function | |
1516 | && sym->ts.type == BT_CHARACTER | |
1517 | && sym->ts.deferred | |
1518 | && sym->ts.u.cl->passed_length == NULL | |
1519 | && sym->ts.u.cl->backend_decl | |
1520 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1521 | { | |
1522 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
afbc5ae8 PT |
1523 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1524 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
8d51f26f PT |
1525 | } |
1526 | ||
431e4685 TB |
1527 | fun_or_res = byref && (sym->attr.result |
1528 | || (sym->attr.function && sym->ts.deferred)); | |
1529 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
6de9cd9a DN |
1530 | { |
1531 | /* Return via extra parameter. */ | |
1532 | if (sym->attr.result && byref | |
1533 | && !sym->backend_decl) | |
1534 | { | |
1535 | sym->backend_decl = | |
1536 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
d198b59a JJ |
1537 | /* For entry master function skip over the __entry |
1538 | argument. */ | |
1539 | if (sym->ns->proc_name->attr.entry_master) | |
910ad8de | 1540 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
6de9cd9a DN |
1541 | } |
1542 | ||
1543 | /* Dummy variables should already have been created. */ | |
6e45f57b | 1544 | gcc_assert (sym->backend_decl); |
6de9cd9a | 1545 | |
9856bb90 PT |
1546 | /* However, the string length of deferred arrays must be set. */ |
1547 | if (sym->ts.type == BT_CHARACTER | |
1548 | && sym->ts.deferred | |
1549 | && sym->attr.dimension | |
1550 | && sym->attr.allocatable) | |
1551 | gfc_defer_symbol_init (sym); | |
1552 | ||
ff3598bc PT |
1553 | if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS) |
1554 | GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1; | |
1555 | ||
6de9cd9a DN |
1556 | /* Create a character length variable. */ |
1557 | if (sym->ts.type == BT_CHARACTER) | |
1558 | { | |
8d51f26f PT |
1559 | /* For a deferred dummy, make a new string length variable. */ |
1560 | if (sym->ts.deferred | |
1561 | && | |
1562 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1563 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1564 | ||
adbfb3f8 | 1565 | if (sym->ts.deferred && byref) |
8d51f26f | 1566 | { |
adbfb3f8 AV |
1567 | /* The string length of a deferred char array is stored in the |
1568 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1569 | marked as a result. Exempt this variable from generating a | |
1570 | temporary for it. */ | |
1571 | if (sym->attr.result) | |
1572 | { | |
1573 | /* We need to insert a indirect ref for param decls. */ | |
1574 | if (sym->ts.u.cl->backend_decl | |
1575 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
afbc5ae8 PT |
1576 | { |
1577 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
b62df3bf | 1578 | sym->ts.u.cl->backend_decl = |
adbfb3f8 | 1579 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
b62df3bf | 1580 | } |
afbc5ae8 | 1581 | } |
adbfb3f8 AV |
1582 | /* For all other parameters make sure, that they are copied so |
1583 | that the value and any modifications are local to the routine | |
1584 | by generating a temporary variable. */ | |
1585 | else if (sym->attr.function | |
1586 | && sym->ts.u.cl->passed_length == NULL | |
1587 | && sym->ts.u.cl->backend_decl) | |
1588 | { | |
1589 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
afbc5ae8 PT |
1590 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1591 | sym->ts.u.cl->backend_decl | |
1592 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1593 | else | |
b62df3bf | 1594 | sym->ts.u.cl->backend_decl = NULL_TREE; |
adbfb3f8 | 1595 | } |
8d51f26f PT |
1596 | } |
1597 | ||
bc21d315 | 1598 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
417ab240 JJ |
1599 | length = gfc_create_string_length (sym); |
1600 | else | |
bc21d315 | 1601 | length = sym->ts.u.cl->backend_decl; |
d168c883 | 1602 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
6de9cd9a | 1603 | { |
3e978d30 | 1604 | /* Add the string length to the same context as the symbol. */ |
151a3e4e JJ |
1605 | if (DECL_CONTEXT (length) == NULL_TREE) |
1606 | { | |
1607 | if (DECL_CONTEXT (sym->backend_decl) | |
1608 | == current_function_decl) | |
1609 | gfc_add_decl_to_function (length); | |
1610 | else | |
1611 | gfc_add_decl_to_parent_function (length); | |
1612 | } | |
3e978d30 | 1613 | |
151a3e4e JJ |
1614 | gcc_assert (DECL_CONTEXT (sym->backend_decl) |
1615 | == DECL_CONTEXT (length)); | |
3e978d30 | 1616 | |
417ab240 | 1617 | gfc_defer_symbol_init (sym); |
a41baa64 | 1618 | } |
6de9cd9a DN |
1619 | } |
1620 | ||
1621 | /* Use a copy of the descriptor for dummy arrays. */ | |
4ca9939b TB |
1622 | if ((sym->attr.dimension || sym->attr.codimension) |
1623 | && !TREE_USED (sym->backend_decl)) | |
6de9cd9a | 1624 | { |
3e978d30 PT |
1625 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1626 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1627 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1628 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1629 | sym->backend_decl = decl; | |
6de9cd9a DN |
1630 | } |
1631 | ||
f3b0bb7a AV |
1632 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1633 | some caller is expecting an expression to apply the component refs to. | |
1634 | Therefore the descriptor is only created and stored in | |
1635 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1636 | responsible to extract it from there, when the descriptor is | |
1637 | desired. */ | |
1638 | if (IS_CLASS_ARRAY (sym) | |
1639 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1640 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1641 | { | |
1642 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1643 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1644 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1645 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1646 | sym->backend_decl = decl; | |
1647 | } | |
1648 | ||
6de9cd9a | 1649 | TREE_USED (sym->backend_decl) = 1; |
910450c1 FW |
1650 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1651 | { | |
1652 | gfc_add_assign_aux_vars (sym); | |
1653 | } | |
77f2a970 | 1654 | |
f3b0bb7a | 1655 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
77f2a970 JJ |
1656 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1657 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1658 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1659 | gfc_nonlocal_dummy_array_decl (sym); | |
1660 | ||
c49ea23d PT |
1661 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1662 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1663 | ||
c49ea23d | 1664 | return sym->backend_decl; |
6de9cd9a DN |
1665 | } |
1666 | ||
1667 | if (sym->backend_decl) | |
1668 | return sym->backend_decl; | |
1669 | ||
4ed5664e TB |
1670 | /* Special case for array-valued named constants from intrinsic |
1671 | procedures; those are inlined. */ | |
8b198102 FXC |
1672 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1673 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1674 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
4ed5664e TB |
1675 | intrinsic_array_parameter = true; |
1676 | ||
9fa52231 | 1677 | /* If use associated compilation, use the module |
43afc047 | 1678 | declaration. */ |
9fa52231 TB |
1679 | if ((sym->attr.flavor == FL_VARIABLE |
1680 | || sym->attr.flavor == FL_PARAMETER) | |
cded7919 | 1681 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
9fa52231 TB |
1682 | && !intrinsic_array_parameter |
1683 | && sym->module | |
1684 | && gfc_get_module_backend_decl (sym)) | |
c49ea23d PT |
1685 | { |
1686 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1687 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1688 | return sym->backend_decl; | |
1689 | } | |
3af8d8cb | 1690 | |
6de9cd9a DN |
1691 | if (sym->attr.flavor == FL_PROCEDURE) |
1692 | { | |
ab1668f6 | 1693 | /* Catch functions. Only used for actual parameters, |
1d0134b3 | 1694 | procedure pointers and procptr initialization targets. */ |
ee077fcb PT |
1695 | if (sym->attr.use_assoc |
1696 | || sym->attr.used_in_submodule | |
1697 | || sym->attr.intrinsic | |
ab1668f6 | 1698 | || sym->attr.if_source != IFSRC_DECL) |
1d0134b3 JW |
1699 | { |
1700 | decl = gfc_get_extern_function_decl (sym); | |
1701 | gfc_set_decl_location (decl, &sym->declared_at); | |
1702 | } | |
1703 | else | |
1704 | { | |
1705 | if (!sym->backend_decl) | |
1706 | build_function_decl (sym, false); | |
1707 | decl = sym->backend_decl; | |
1708 | } | |
6de9cd9a DN |
1709 | return decl; |
1710 | } | |
1711 | ||
1712 | if (sym->attr.intrinsic) | |
17d5d49f | 1713 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
6de9cd9a DN |
1714 | |
1715 | /* Create string length decl first so that they can be used in the | |
e207c522 PT |
1716 | type declaration. For associate names, the target character |
1717 | length is used. Set 'length' to a constant so that if the | |
345bd7eb | 1718 | string length is a variable, it is not finished a second time. */ |
6de9cd9a | 1719 | if (sym->ts.type == BT_CHARACTER) |
e207c522 | 1720 | { |
707905d0 PT |
1721 | if (sym->attr.associate_var |
1722 | && sym->ts.deferred | |
1723 | && sym->assoc && sym->assoc->target | |
1724 | && ((sym->assoc->target->expr_type == EXPR_VARIABLE | |
1725 | && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER) | |
5c60dbc1 | 1726 | || sym->assoc->target->expr_type != EXPR_VARIABLE)) |
707905d0 PT |
1727 | sym->ts.u.cl->backend_decl = NULL_TREE; |
1728 | ||
e207c522 PT |
1729 | if (sym->attr.associate_var |
1730 | && sym->ts.u.cl->backend_decl | |
5c60dbc1 PT |
1731 | && (VAR_P (sym->ts.u.cl->backend_decl) |
1732 | || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)) | |
e207c522 PT |
1733 | length = gfc_index_zero_node; |
1734 | else | |
1735 | length = gfc_create_string_length (sym); | |
1736 | } | |
6de9cd9a DN |
1737 | |
1738 | /* Create the decl for the variable. */ | |
c2255bc4 AH |
1739 | decl = build_decl (sym->declared_at.lb->location, |
1740 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
c8cc8542 | 1741 | |
43ce5e52 FXC |
1742 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1743 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1744 | decl_attributes (&decl, attributes, 0); | |
1745 | ||
f8d0aee5 | 1746 | /* Symbols from modules should have their assembler names mangled. |
6de9cd9a DN |
1747 | This is done here rather than in gfc_finish_var_decl because it |
1748 | is different for string length variables. */ | |
345bd7eb | 1749 | if (sym->module || sym->fn_result_spec) |
a64f5186 | 1750 | { |
43ce5e52 | 1751 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
be1f1ed9 | 1752 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
a64f5186 JJ |
1753 | DECL_IGNORED_P (decl) = 1; |
1754 | } | |
6de9cd9a | 1755 | |
b3996898 JJ |
1756 | if (sym->attr.select_type_temporary) |
1757 | { | |
1758 | DECL_ARTIFICIAL (decl) = 1; | |
1759 | DECL_IGNORED_P (decl) = 1; | |
1760 | } | |
1761 | ||
4ca9939b | 1762 | if (sym->attr.dimension || sym->attr.codimension) |
6de9cd9a DN |
1763 | { |
1764 | /* Create variables to hold the non-constant bits of array info. */ | |
1765 | gfc_build_qualified_array (decl, sym); | |
1766 | ||
fe4e525c TB |
1767 | if (sym->attr.contiguous |
1768 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
6de9cd9a DN |
1769 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1770 | } | |
1771 | ||
1517fd57 | 1772 | /* Remember this variable for allocation/cleanup. */ |
9f3761c5 | 1773 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
1517fd57 | 1774 | || (sym->ts.type == BT_CLASS && |
7a08eda1 JW |
1775 | (CLASS_DATA (sym)->attr.dimension |
1776 | || CLASS_DATA (sym)->attr.allocatable)) | |
ea8b72e6 TB |
1777 | || (sym->ts.type == BT_DERIVED |
1778 | && (sym->ts.u.derived->attr.alloc_comp | |
1779 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1780 | && !sym->ns->proc_name->attr.is_main_program | |
1781 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
1517fd57 JW |
1782 | /* This applies a derived type default initializer. */ |
1783 | || (sym->ts.type == BT_DERIVED | |
1784 | && sym->attr.save == SAVE_NONE | |
1785 | && !sym->attr.data | |
1786 | && !sym->attr.allocatable | |
1787 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
be1f1ed9 | 1788 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
b7b184a8 | 1789 | gfc_defer_symbol_init (sym); |
5046aff5 | 1790 | |
8ae261c0 JJ |
1791 | /* Associate names can use the hidden string length variable |
1792 | of their associated target. */ | |
1793 | if (sym->ts.type == BT_CHARACTER | |
26f822c2 PT |
1794 | && TREE_CODE (length) != INTEGER_CST |
1795 | && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF) | |
8ae261c0 JJ |
1796 | { |
1797 | gfc_finish_var_decl (length, sym); | |
1798 | gcc_assert (!sym->value); | |
1799 | } | |
1800 | ||
6de9cd9a DN |
1801 | gfc_finish_var_decl (decl, sym); |
1802 | ||
597073ac | 1803 | if (sym->ts.type == BT_CHARACTER) |
8ae261c0 JJ |
1804 | /* Character variables need special handling. */ |
1805 | gfc_allocate_lang_decl (decl); | |
1d6b7f39 | 1806 | |
ff3598bc PT |
1807 | if (sym->assoc && sym->attr.subref_array_pointer) |
1808 | sym->attr.pointer = 1; | |
1809 | ||
1810 | if (sym->attr.pointer && sym->attr.dimension | |
1811 | && !sym->ts.deferred | |
1812 | && !(sym->attr.select_type_temporary | |
1813 | && !sym->attr.subref_array_pointer)) | |
1814 | GFC_DECL_PTR_ARRAY_P (decl) = 1; | |
1d6b7f39 | 1815 | |
c49ea23d | 1816 | if (sym->ts.type == BT_CLASS) |
ff3598bc | 1817 | GFC_DECL_CLASS(decl) = 1; |
c49ea23d | 1818 | |
6de9cd9a DN |
1819 | sym->backend_decl = decl; |
1820 | ||
910450c1 | 1821 | if (sym->attr.assign) |
6c0e51c4 | 1822 | gfc_add_assign_aux_vars (sym); |
910450c1 | 1823 | |
be1f1ed9 TB |
1824 | if (intrinsic_array_parameter) |
1825 | { | |
1826 | TREE_STATIC (decl) = 1; | |
1827 | DECL_EXTERNAL (decl) = 0; | |
1828 | } | |
1829 | ||
1830 | if (TREE_STATIC (decl) | |
1831 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
2b56d6a4 | 1832 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
43068916 | 1833 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
b8ff4e88 | 1834 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
f19626cf | 1835 | && (flag_coarray != GFC_FCOARRAY_LIB |
276515e6 PT |
1836 | || !sym->attr.codimension || sym->attr.allocatable) |
1837 | && !(sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
1838 | && !(sym->ts.type == BT_CLASS | |
1839 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type)) | |
2b56d6a4 TB |
1840 | { |
1841 | /* Add static initializer. For procedures, it is only needed if | |
1842 | SAVE is specified otherwise they need to be reinitialized | |
1843 | every time the procedure is entered. The TREE_STATIC is | |
1844 | in this case due to -fmax-stack-var-size=. */ | |
2cc6320d | 1845 | |
597073ac | 1846 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2cc6320d JW |
1847 | TREE_TYPE (decl), sym->attr.dimension |
1848 | || (sym->attr.codimension | |
1849 | && sym->attr.allocatable), | |
1850 | sym->attr.pointer || sym->attr.allocatable | |
1851 | || sym->ts.type == BT_CLASS, | |
1852 | sym->attr.proc_pointer); | |
597073ac PB |
1853 | } |
1854 | ||
77f2a970 JJ |
1855 | if (!TREE_STATIC (decl) |
1856 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1857 | && !sym->attr.pointer | |
1858 | && !sym->attr.allocatable | |
b3996898 JJ |
1859 | && !sym->attr.proc_pointer |
1860 | && !sym->attr.select_type_temporary) | |
77f2a970 JJ |
1861 | DECL_BY_REFERENCE (decl) = 1; |
1862 | ||
92d28cbb JJ |
1863 | if (sym->attr.associate_var) |
1864 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1865 | ||
cf651ca2 TB |
1866 | if (sym->attr.vtab |
1867 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
755634e6 | 1868 | TREE_READONLY (decl) = 1; |
cf651ca2 | 1869 | |
6de9cd9a DN |
1870 | return decl; |
1871 | } | |
1872 | ||
1873 | ||
7b5b57b7 PB |
1874 | /* Substitute a temporary variable in place of the real one. */ |
1875 | ||
1876 | void | |
1877 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1878 | { | |
1879 | save->attr = sym->attr; | |
1880 | save->decl = sym->backend_decl; | |
1881 | ||
1882 | gfc_clear_attr (&sym->attr); | |
1883 | sym->attr.referenced = 1; | |
1884 | sym->attr.flavor = FL_VARIABLE; | |
1885 | ||
1886 | sym->backend_decl = decl; | |
1887 | } | |
1888 | ||
1889 | ||
1890 | /* Restore the original variable. */ | |
1891 | ||
1892 | void | |
1893 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1894 | { | |
1895 | sym->attr = save->attr; | |
1896 | sym->backend_decl = save->decl; | |
1897 | } | |
1898 | ||
1899 | ||
8fb74da4 JW |
1900 | /* Declare a procedure pointer. */ |
1901 | ||
1902 | static tree | |
1903 | get_proc_pointer_decl (gfc_symbol *sym) | |
1904 | { | |
1905 | tree decl; | |
08a6b8e0 | 1906 | tree attributes; |
8fb74da4 JW |
1907 | |
1908 | decl = sym->backend_decl; | |
1909 | if (decl) | |
1910 | return decl; | |
1911 | ||
c2255bc4 AH |
1912 | decl = build_decl (input_location, |
1913 | VAR_DECL, get_identifier (sym->name), | |
8fb74da4 JW |
1914 | build_pointer_type (gfc_get_function_type (sym))); |
1915 | ||
5e4404b8 JW |
1916 | if (sym->module) |
1917 | { | |
1918 | /* Apply name mangling. */ | |
1919 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1920 | if (sym->attr.use_assoc) | |
1921 | DECL_IGNORED_P (decl) = 1; | |
1922 | } | |
8b704316 | 1923 | |
06c7153f TB |
1924 | if ((sym->ns->proc_name |
1925 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
8fb74da4 JW |
1926 | || sym->attr.contained) |
1927 | gfc_add_decl_to_function (decl); | |
6e0d2de7 | 1928 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
8fb74da4 JW |
1929 | gfc_add_decl_to_parent_function (decl); |
1930 | ||
1931 | sym->backend_decl = decl; | |
1932 | ||
6e0d2de7 JW |
1933 | /* If a variable is USE associated, it's always external. */ |
1934 | if (sym->attr.use_assoc) | |
1935 | { | |
1936 | DECL_EXTERNAL (decl) = 1; | |
1937 | TREE_PUBLIC (decl) = 1; | |
1938 | } | |
1939 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1940 | { | |
1941 | /* This is the declaration of a module variable. */ | |
a56ea54a PT |
1942 | TREE_PUBLIC (decl) = 1; |
1943 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1944 | { | |
1945 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1946 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1947 | } | |
6e0d2de7 JW |
1948 | TREE_STATIC (decl) = 1; |
1949 | } | |
1950 | ||
8fb74da4 JW |
1951 | if (!sym->attr.use_assoc |
1952 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1953 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1954 | TREE_STATIC (decl) = 1; | |
1955 | ||
1956 | if (TREE_STATIC (decl) && sym->value) | |
1957 | { | |
1958 | /* Add static initializer. */ | |
1959 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
1d0134b3 JW |
1960 | TREE_TYPE (decl), |
1961 | sym->attr.dimension, | |
1962 | false, true); | |
8fb74da4 JW |
1963 | } |
1964 | ||
a6c975bd JJ |
1965 | /* Handle threadprivate procedure pointers. */ |
1966 | if (sym->attr.threadprivate | |
1967 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
56363ffd | 1968 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
a6c975bd | 1969 | |
08a6b8e0 TB |
1970 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1971 | decl_attributes (&decl, attributes, 0); | |
1972 | ||
8fb74da4 JW |
1973 | return decl; |
1974 | } | |
1975 | ||
1976 | ||
6de9cd9a DN |
1977 | /* Get a basic decl for an external function. */ |
1978 | ||
1979 | tree | |
8517f286 | 1980 | gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args) |
6de9cd9a DN |
1981 | { |
1982 | tree type; | |
1983 | tree fndecl; | |
08a6b8e0 | 1984 | tree attributes; |
6de9cd9a DN |
1985 | gfc_expr e; |
1986 | gfc_intrinsic_sym *isym; | |
1987 | gfc_expr argexpr; | |
e6472bce | 1988 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
6de9cd9a DN |
1989 | tree name; |
1990 | tree mangled_name; | |
71a7778c | 1991 | gfc_gsymbol *gsym; |
6de9cd9a DN |
1992 | |
1993 | if (sym->backend_decl) | |
1994 | return sym->backend_decl; | |
1995 | ||
3d79abbd PB |
1996 | /* We should never be creating external decls for alternate entry points. |
1997 | The procedure may be an alternate entry point, but we don't want/need | |
1998 | to know that. */ | |
6e45f57b | 1999 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
3d79abbd | 2000 | |
8fb74da4 JW |
2001 | if (sym->attr.proc_pointer) |
2002 | return get_proc_pointer_decl (sym); | |
2003 | ||
71a7778c | 2004 | /* See if this is an external procedure from the same file. If so, |
f93af968 TK |
2005 | return the backend_decl. If we are looking at a BIND(C) |
2006 | procedure and the symbol is not BIND(C), or vice versa, we | |
2007 | haven't found the right procedure. */ | |
2008 | ||
2009 | if (sym->binding_label) | |
2010 | { | |
2011 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label); | |
2012 | if (gsym && !gsym->bind_c) | |
2013 | gsym = NULL; | |
2014 | } | |
2015 | else | |
2016 | { | |
2017 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name); | |
2018 | if (gsym && gsym->bind_c) | |
2019 | gsym = NULL; | |
2020 | } | |
71a7778c | 2021 | |
77f8682b TB |
2022 | if (gsym && !gsym->defined) |
2023 | gsym = NULL; | |
2024 | ||
2025 | /* This can happen because of C binding. */ | |
2026 | if (gsym && gsym->ns && gsym->ns->proc_name | |
2027 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
2028 | goto module_sym; | |
2029 | ||
9fa52231 TB |
2030 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
2031 | && !sym->backend_decl | |
2032 | && gsym && gsym->ns | |
2033 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
2034 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
71a7778c | 2035 | { |
fb55ca75 TB |
2036 | if (!gsym->ns->proc_name->backend_decl) |
2037 | { | |
2038 | /* By construction, the external function cannot be | |
2039 | a contained procedure. */ | |
2040 | locus old_loc; | |
fb55ca75 | 2041 | |
363aab21 | 2042 | gfc_save_backend_locus (&old_loc); |
af16bc76 | 2043 | push_cfun (NULL); |
fb55ca75 TB |
2044 | |
2045 | gfc_create_function_decl (gsym->ns, true); | |
2046 | ||
2047 | pop_cfun (); | |
363aab21 | 2048 | gfc_restore_backend_locus (&old_loc); |
fb55ca75 TB |
2049 | } |
2050 | ||
71a7778c PT |
2051 | /* If the namespace has entries, the proc_name is the |
2052 | entry master. Find the entry and use its backend_decl. | |
2053 | otherwise, use the proc_name backend_decl. */ | |
2054 | if (gsym->ns->entries) | |
2055 | { | |
2056 | gfc_entry_list *entry = gsym->ns->entries; | |
2057 | ||
2058 | for (; entry; entry = entry->next) | |
2059 | { | |
2060 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
2061 | { | |
2062 | sym->backend_decl = entry->sym->backend_decl; | |
2063 | break; | |
2064 | } | |
2065 | } | |
2066 | } | |
2067 | else | |
6a018495 | 2068 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
71a7778c PT |
2069 | |
2070 | if (sym->backend_decl) | |
6a018495 TB |
2071 | { |
2072 | /* Avoid problems of double deallocation of the backend declaration | |
2073 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2074 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2075 | sym->attr.use_assoc = 0; | |
2076 | ||
2077 | return sym->backend_decl; | |
2078 | } | |
71a7778c PT |
2079 | } |
2080 | ||
3af8d8cb PT |
2081 | /* See if this is a module procedure from the same file. If so, |
2082 | return the backend_decl. */ | |
2083 | if (sym->module) | |
2084 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2085 | ||
77f8682b TB |
2086 | module_sym: |
2087 | if (gsym && gsym->ns | |
2088 | && (gsym->type == GSYM_MODULE | |
2089 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
3af8d8cb PT |
2090 | { |
2091 | gfc_symbol *s; | |
2092 | ||
2093 | s = NULL; | |
77f8682b TB |
2094 | if (gsym->type == GSYM_MODULE) |
2095 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2096 | else | |
2097 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2098 | ||
3af8d8cb PT |
2099 | if (s && s->backend_decl) |
2100 | { | |
f29bda83 TB |
2101 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2102 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2103 | true); | |
2104 | else if (sym->ts.type == BT_CHARACTER) | |
2105 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
3af8d8cb PT |
2106 | sym->backend_decl = s->backend_decl; |
2107 | return sym->backend_decl; | |
2108 | } | |
2109 | } | |
2110 | ||
6de9cd9a DN |
2111 | if (sym->attr.intrinsic) |
2112 | { | |
2113 | /* Call the resolution function to get the actual name. This is | |
2114 | a nasty hack which relies on the resolution functions only looking | |
2115 | at the first argument. We pass NULL for the second argument | |
2116 | otherwise things like AINT get confused. */ | |
2117 | isym = gfc_find_function (sym->name); | |
6e45f57b | 2118 | gcc_assert (isym->resolve.f0 != NULL); |
6de9cd9a DN |
2119 | |
2120 | memset (&e, 0, sizeof (e)); | |
2121 | e.expr_type = EXPR_FUNCTION; | |
2122 | ||
2123 | memset (&argexpr, 0, sizeof (argexpr)); | |
6e45f57b | 2124 | gcc_assert (isym->formal); |
6de9cd9a DN |
2125 | argexpr.ts = isym->formal->ts; |
2126 | ||
2127 | if (isym->formal->next == NULL) | |
2128 | isym->resolve.f1 (&e, &argexpr); | |
2129 | else | |
2130 | { | |
0e7e7e6e FXC |
2131 | if (isym->formal->next->next == NULL) |
2132 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2133 | else | |
2134 | { | |
5cda5098 FXC |
2135 | if (isym->formal->next->next->next == NULL) |
2136 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2137 | else | |
2138 | { | |
2139 | /* All specific intrinsics take less than 5 arguments. */ | |
2140 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2141 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2142 | } | |
0e7e7e6e | 2143 | } |
6de9cd9a | 2144 | } |
973ff4c0 | 2145 | |
c61819ff | 2146 | if (flag_f2c |
973ff4c0 TS |
2147 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2148 | || e.ts.type == BT_COMPLEX)) | |
2149 | { | |
2150 | /* Specific which needs a different implementation if f2c | |
2151 | calling conventions are used. */ | |
e6472bce | 2152 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
973ff4c0 TS |
2153 | } |
2154 | else | |
e6472bce | 2155 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
973ff4c0 | 2156 | |
6de9cd9a DN |
2157 | name = get_identifier (s); |
2158 | mangled_name = name; | |
2159 | } | |
2160 | else | |
2161 | { | |
2162 | name = gfc_sym_identifier (sym); | |
2163 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2164 | } | |
2165 | ||
8517f286 | 2166 | type = gfc_get_function_type (sym, actual_args); |
c2255bc4 AH |
2167 | fndecl = build_decl (input_location, |
2168 | FUNCTION_DECL, name, type); | |
6de9cd9a | 2169 | |
384f586a KT |
2170 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2171 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
dd5a833e | 2172 | the opposite of declaring a function as static in C). */ |
384f586a KT |
2173 | DECL_EXTERNAL (fndecl) = 1; |
2174 | TREE_PUBLIC (fndecl) = 1; | |
2175 | ||
43ce5e52 FXC |
2176 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2177 | decl_attributes (&fndecl, attributes, 0); | |
2178 | ||
2179 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
6de9cd9a DN |
2180 | |
2181 | /* Set the context of this decl. */ | |
2182 | if (0 && sym->ns && sym->ns->proc_name) | |
2183 | { | |
2184 | /* TODO: Add external decls to the appropriate scope. */ | |
2185 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2186 | } | |
2187 | else | |
2188 | { | |
f8d0aee5 | 2189 | /* Global declaration, e.g. intrinsic subroutine. */ |
6de9cd9a DN |
2190 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2191 | } | |
2192 | ||
6de9cd9a DN |
2193 | /* Set attributes for PURE functions. A call to PURE function in the |
2194 | Fortran 95 sense is both pure and without side effects in the C | |
2195 | sense. */ | |
033418dc | 2196 | if (sym->attr.pure || sym->attr.implicit_pure) |
6de9cd9a | 2197 | { |
cf013e9f | 2198 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
becfd6e5 | 2199 | DECL_PURE_P (fndecl) = 1; |
b7e6a6b3 TS |
2200 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2201 | parameters and don't use alternate returns (is this | |
2202 | allowed?). In that case, calls to them are meaningless, and | |
3d79abbd | 2203 | can be optimized away. See also in build_function_decl(). */ |
b7e6a6b3 | 2204 | TREE_SIDE_EFFECTS (fndecl) = 0; |
6de9cd9a DN |
2205 | } |
2206 | ||
fe58e076 TK |
2207 | /* Mark non-returning functions. */ |
2208 | if (sym->attr.noreturn) | |
2209 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2210 | ||
6de9cd9a DN |
2211 | sym->backend_decl = fndecl; |
2212 | ||
2213 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2214 | pushdecl_top_level (fndecl); | |
2215 | ||
dd2fc525 JJ |
2216 | if (sym->formal_ns |
2217 | && sym->formal_ns->proc_name == sym | |
2218 | && sym->formal_ns->omp_declare_simd) | |
2219 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2220 | ||
6de9cd9a DN |
2221 | return fndecl; |
2222 | } | |
2223 | ||
2224 | ||
2225 | /* Create a declaration for a procedure. For external functions (in the C | |
3d79abbd PB |
2226 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2227 | a master function with alternate entry points. */ | |
6de9cd9a | 2228 | |
3d79abbd | 2229 | static void |
fb55ca75 | 2230 | build_function_decl (gfc_symbol * sym, bool global) |
6de9cd9a | 2231 | { |
08a6b8e0 | 2232 | tree fndecl, type, attributes; |
6de9cd9a | 2233 | symbol_attribute attr; |
3d79abbd | 2234 | tree result_decl; |
6de9cd9a DN |
2235 | gfc_formal_arglist *f; |
2236 | ||
70112e2a PT |
2237 | bool module_procedure = sym->attr.module_procedure |
2238 | && sym->ns | |
2239 | && sym->ns->proc_name | |
2240 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2241 | ||
2242 | gcc_assert (!sym->attr.external || module_procedure); | |
6de9cd9a | 2243 | |
1d0134b3 JW |
2244 | if (sym->backend_decl) |
2245 | return; | |
2246 | ||
c8cc8542 PB |
2247 | /* Set the line and filename. sym->declared_at seems to point to the |
2248 | last statement for subroutines, but it'll do for now. */ | |
2249 | gfc_set_backend_locus (&sym->declared_at); | |
2250 | ||
6de9cd9a | 2251 | /* Allow only one nesting level. Allow public declarations. */ |
6e45f57b | 2252 | gcc_assert (current_function_decl == NULL_TREE |
e5b16755 RG |
2253 | || DECL_FILE_SCOPE_P (current_function_decl) |
2254 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2255 | == NAMESPACE_DECL)); | |
6de9cd9a DN |
2256 | |
2257 | type = gfc_get_function_type (sym); | |
c2255bc4 AH |
2258 | fndecl = build_decl (input_location, |
2259 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
6de9cd9a | 2260 | |
43ce5e52 FXC |
2261 | attr = sym->attr; |
2262 | ||
384f586a KT |
2263 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2264 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
dd5a833e | 2265 | the opposite of declaring a function as static in C). */ |
384f586a KT |
2266 | DECL_EXTERNAL (fndecl) = 0; |
2267 | ||
58341a42 TB |
2268 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2269 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2270 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
c61819ff | 2271 | && flag_module_private))) |
58341a42 TB |
2272 | sym->attr.access = ACCESS_PRIVATE; |
2273 | ||
384f586a | 2274 | if (!current_function_decl |
5af6fa0b | 2275 | && !sym->attr.entry_master && !sym->attr.is_main_program |
cdd244b8 TB |
2276 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2277 | || sym->attr.public_used)) | |
384f586a KT |
2278 | TREE_PUBLIC (fndecl) = 1; |
2279 | ||
29be7510 JW |
2280 | if (sym->attr.referenced || sym->attr.entry_master) |
2281 | TREE_USED (fndecl) = 1; | |
2282 | ||
43ce5e52 FXC |
2283 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2284 | decl_attributes (&fndecl, attributes, 0); | |
2285 | ||
6de9cd9a | 2286 | /* Figure out the return type of the declared function, and build a |
f8d0aee5 | 2287 | RESULT_DECL for it. If this is a subroutine with alternate |
6de9cd9a | 2288 | returns, build a RESULT_DECL for it. */ |
6de9cd9a DN |
2289 | result_decl = NULL_TREE; |
2290 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2291 | if (attr.function) | |
2292 | { | |
2293 | if (gfc_return_by_reference (sym)) | |
2294 | type = void_type_node; | |
2295 | else | |
2296 | { | |
2297 | if (sym->result != sym) | |
2298 | result_decl = gfc_sym_identifier (sym->result); | |
2299 | ||
2300 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2301 | } | |
2302 | } | |
2303 | else | |
2304 | { | |
2305 | /* Look for alternate return placeholders. */ | |
2306 | int has_alternate_returns = 0; | |
4cbc9039 | 2307 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
6de9cd9a DN |
2308 | { |
2309 | if (f->sym == NULL) | |
2310 | { | |
2311 | has_alternate_returns = 1; | |
2312 | break; | |
2313 | } | |
2314 | } | |
2315 | ||
2316 | if (has_alternate_returns) | |
2317 | type = integer_type_node; | |
2318 | else | |
2319 | type = void_type_node; | |
2320 | } | |
2321 | ||
c2255bc4 AH |
2322 | result_decl = build_decl (input_location, |
2323 | RESULT_DECL, result_decl, type); | |
b785f485 RH |
2324 | DECL_ARTIFICIAL (result_decl) = 1; |
2325 | DECL_IGNORED_P (result_decl) = 1; | |
6de9cd9a DN |
2326 | DECL_CONTEXT (result_decl) = fndecl; |
2327 | DECL_RESULT (fndecl) = result_decl; | |
2328 | ||
2329 | /* Don't call layout_decl for a RESULT_DECL. | |
f8d0aee5 | 2330 | layout_decl (result_decl, 0); */ |
6de9cd9a | 2331 | |
6de9cd9a | 2332 | /* TREE_STATIC means the function body is defined here. */ |
1d754240 | 2333 | TREE_STATIC (fndecl) = 1; |
6de9cd9a | 2334 | |
f8d0aee5 | 2335 | /* Set attributes for PURE functions. A call to a PURE function in the |
6de9cd9a DN |
2336 | Fortran 95 sense is both pure and without side effects in the C |
2337 | sense. */ | |
033418dc | 2338 | if (attr.pure || attr.implicit_pure) |
6de9cd9a | 2339 | { |
b7e6a6b3 | 2340 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
86bf520d | 2341 | including an alternate return. In that case it can also be |
1f2959f0 | 2342 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
a01db3bf | 2343 | if (attr.function && !gfc_return_by_reference (sym)) |
becfd6e5 | 2344 | DECL_PURE_P (fndecl) = 1; |
6de9cd9a DN |
2345 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2346 | } | |
2347 | ||
08a6b8e0 | 2348 | |
6de9cd9a DN |
2349 | /* Layout the function declaration and put it in the binding level |
2350 | of the current function. */ | |
fb55ca75 | 2351 | |
755634e6 | 2352 | if (global) |
fb55ca75 TB |
2353 | pushdecl_top_level (fndecl); |
2354 | else | |
2355 | pushdecl (fndecl); | |
3d79abbd | 2356 | |
e5b16755 RG |
2357 | /* Perform name mangling if this is a top level or module procedure. */ |
2358 | if (current_function_decl == NULL_TREE) | |
2359 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2360 | ||
3d79abbd PB |
2361 | sym->backend_decl = fndecl; |
2362 | } | |
2363 | ||
2364 | ||
2365 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2366 | ||
2367 | static void | |
2368 | create_function_arglist (gfc_symbol * sym) | |
2369 | { | |
2370 | tree fndecl; | |
2371 | gfc_formal_arglist *f; | |
417ab240 JJ |
2372 | tree typelist, hidden_typelist; |
2373 | tree arglist, hidden_arglist; | |
3d79abbd PB |
2374 | tree type; |
2375 | tree parm; | |
2376 | ||
2377 | fndecl = sym->backend_decl; | |
2378 | ||
1d754240 PB |
2379 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2380 | the new FUNCTION_DECL node. */ | |
1d754240 | 2381 | arglist = NULL_TREE; |
417ab240 | 2382 | hidden_arglist = NULL_TREE; |
1d754240 | 2383 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
3d79abbd PB |
2384 | |
2385 | if (sym->attr.entry_master) | |
2386 | { | |
2387 | type = TREE_VALUE (typelist); | |
c2255bc4 AH |
2388 | parm = build_decl (input_location, |
2389 | PARM_DECL, get_identifier ("__entry"), type); | |
8b704316 | 2390 | |
3d79abbd PB |
2391 | DECL_CONTEXT (parm) = fndecl; |
2392 | DECL_ARG_TYPE (parm) = type; | |
2393 | TREE_READONLY (parm) = 1; | |
faf28b3a | 2394 | gfc_finish_decl (parm); |
3e978d30 | 2395 | DECL_ARTIFICIAL (parm) = 1; |
3d79abbd PB |
2396 | |
2397 | arglist = chainon (arglist, parm); | |
2398 | typelist = TREE_CHAIN (typelist); | |
2399 | } | |
2400 | ||
1d754240 | 2401 | if (gfc_return_by_reference (sym)) |
6de9cd9a | 2402 | { |
417ab240 | 2403 | tree type = TREE_VALUE (typelist), length = NULL; |
6de9cd9a | 2404 | |
1d754240 PB |
2405 | if (sym->ts.type == BT_CHARACTER) |
2406 | { | |
1d754240 | 2407 | /* Length of character result. */ |
417ab240 | 2408 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
6de9cd9a | 2409 | |
c2255bc4 AH |
2410 | length = build_decl (input_location, |
2411 | PARM_DECL, | |
1d754240 | 2412 | get_identifier (".__result"), |
417ab240 | 2413 | len_type); |
ce1ff48e PT |
2414 | if (POINTER_TYPE_P (len_type)) |
2415 | { | |
2416 | sym->ts.u.cl->passed_length = length; | |
2417 | TREE_USED (length) = 1; | |
2418 | } | |
2419 | else if (!sym->ts.u.cl->length) | |
1d754240 | 2420 | { |
bc21d315 | 2421 | sym->ts.u.cl->backend_decl = length; |
1d754240 | 2422 | TREE_USED (length) = 1; |
6de9cd9a | 2423 | } |
6e45f57b | 2424 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
1d754240 | 2425 | DECL_CONTEXT (length) = fndecl; |
417ab240 | 2426 | DECL_ARG_TYPE (length) = len_type; |
1d754240 | 2427 | TREE_READONLY (length) = 1; |
ca0e9281 | 2428 | DECL_ARTIFICIAL (length) = 1; |
faf28b3a | 2429 | gfc_finish_decl (length); |
bc21d315 JW |
2430 | if (sym->ts.u.cl->backend_decl == NULL |
2431 | || sym->ts.u.cl->backend_decl == length) | |
417ab240 JJ |
2432 | { |
2433 | gfc_symbol *arg; | |
2434 | tree backend_decl; | |
6de9cd9a | 2435 | |
bc21d315 | 2436 | if (sym->ts.u.cl->backend_decl == NULL) |
417ab240 | 2437 | { |
c2255bc4 AH |
2438 | tree len = build_decl (input_location, |
2439 | VAR_DECL, | |
417ab240 JJ |
2440 | get_identifier ("..__result"), |
2441 | gfc_charlen_type_node); | |
2442 | DECL_ARTIFICIAL (len) = 1; | |
2443 | TREE_USED (len) = 1; | |
bc21d315 | 2444 | sym->ts.u.cl->backend_decl = len; |
417ab240 | 2445 | } |
6de9cd9a | 2446 | |
417ab240 JJ |
2447 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2448 | arg = sym->result ? sym->result : sym; | |
2449 | backend_decl = arg->backend_decl; | |
2450 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2451 | type. */ | |
2452 | arg->backend_decl = NULL; | |
2453 | type = gfc_sym_type (arg); | |
2454 | arg->backend_decl = backend_decl; | |
2455 | type = build_reference_type (type); | |
2456 | } | |
2457 | } | |
6de9cd9a | 2458 | |
c2255bc4 AH |
2459 | parm = build_decl (input_location, |
2460 | PARM_DECL, get_identifier ("__result"), type); | |
6de9cd9a | 2461 | |
417ab240 JJ |
2462 | DECL_CONTEXT (parm) = fndecl; |
2463 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2464 | TREE_READONLY (parm) = 1; | |
2465 | DECL_ARTIFICIAL (parm) = 1; | |
faf28b3a | 2466 | gfc_finish_decl (parm); |
6de9cd9a | 2467 | |
417ab240 JJ |
2468 | arglist = chainon (arglist, parm); |
2469 | typelist = TREE_CHAIN (typelist); | |
6de9cd9a | 2470 | |
417ab240 JJ |
2471 | if (sym->ts.type == BT_CHARACTER) |
2472 | { | |
2473 | gfc_allocate_lang_decl (parm); | |
2474 | arglist = chainon (arglist, length); | |
1d754240 PB |
2475 | typelist = TREE_CHAIN (typelist); |
2476 | } | |
2477 | } | |
6de9cd9a | 2478 | |
417ab240 | 2479 | hidden_typelist = typelist; |
4cbc9039 | 2480 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
417ab240 JJ |
2481 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2482 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2483 | ||
4cbc9039 | 2484 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
1d754240 PB |
2485 | { |
2486 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
417ab240 | 2487 | |
1d754240 PB |
2488 | /* Ignore alternate returns. */ |
2489 | if (f->sym == NULL) | |
2490 | continue; | |
6de9cd9a | 2491 | |
1d754240 | 2492 | type = TREE_VALUE (typelist); |
6de9cd9a | 2493 | |
33215bb3 TB |
2494 | if (f->sym->ts.type == BT_CHARACTER |
2495 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
417ab240 JJ |
2496 | { |
2497 | tree len_type = TREE_VALUE (hidden_typelist); | |
2498 | tree length = NULL_TREE; | |
8d51f26f PT |
2499 | if (!f->sym->ts.deferred) |
2500 | gcc_assert (len_type == gfc_charlen_type_node); | |
2501 | else | |
2502 | gcc_assert (POINTER_TYPE_P (len_type)); | |
417ab240 JJ |
2503 | |
2504 | strcpy (&name[1], f->sym->name); | |
2505 | name[0] = '_'; | |
c2255bc4 AH |
2506 | length = build_decl (input_location, |
2507 | PARM_DECL, get_identifier (name), len_type); | |
6de9cd9a | 2508 | |
417ab240 JJ |
2509 | hidden_arglist = chainon (hidden_arglist, length); |
2510 | DECL_CONTEXT (length) = fndecl; | |
2511 | DECL_ARTIFICIAL (length) = 1; | |
2512 | DECL_ARG_TYPE (length) = len_type; | |
2513 | TREE_READONLY (length) = 1; | |
faf28b3a | 2514 | gfc_finish_decl (length); |
6de9cd9a | 2515 | |
7fa35a4b JJ |
2516 | /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead |
2517 | to tail calls being disabled. Only do that if we | |
2518 | potentially have broken callers. */ | |
2519 | if (flag_tail_call_workaround | |
2520 | && f->sym->ts.u.cl | |
2521 | && f->sym->ts.u.cl->length | |
2522 | && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT | |
2523 | && (flag_tail_call_workaround == 2 | |
2524 | || f->sym->ns->implicit_interface_calls)) | |
2525 | DECL_HIDDEN_STRING_LENGTH (length) = 1; | |
2526 | ||
cadb8f42 | 2527 | /* Remember the passed value. */ |
8b704316 | 2528 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
3ba558db TB |
2529 | { |
2530 | /* This can happen if the same type is used for multiple | |
2531 | arguments. We need to copy cl as otherwise | |
2532 | cl->passed_length gets overwritten. */ | |
b76e28c6 | 2533 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
3ba558db | 2534 | } |
bc21d315 | 2535 | f->sym->ts.u.cl->passed_length = length; |
6de9cd9a | 2536 | |
417ab240 | 2537 | /* Use the passed value for assumed length variables. */ |
bc21d315 | 2538 | if (!f->sym->ts.u.cl->length) |
6de9cd9a | 2539 | { |
417ab240 | 2540 | TREE_USED (length) = 1; |
bc21d315 JW |
2541 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2542 | f->sym->ts.u.cl->backend_decl = length; | |
417ab240 JJ |
2543 | } |
2544 | ||
2545 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2546 | ||
bc21d315 JW |
2547 | if (f->sym->ts.u.cl->backend_decl == NULL |
2548 | || f->sym->ts.u.cl->backend_decl == length) | |
417ab240 | 2549 | { |
afbc5ae8 PT |
2550 | if (POINTER_TYPE_P (len_type)) |
2551 | f->sym->ts.u.cl->backend_decl = | |
2552 | build_fold_indirect_ref_loc (input_location, length); | |
2553 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
417ab240 JJ |
2554 | gfc_create_string_length (f->sym); |
2555 | ||
2556 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2557 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2558 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2559 | else | |
2560 | type = gfc_sym_type (f->sym); | |
6de9cd9a | 2561 | } |
6de9cd9a | 2562 | } |
60f97ac8 | 2563 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
9b110be2 | 2564 | hence, the optional status cannot be transferred via a NULL pointer. |
60f97ac8 TB |
2565 | Thus, we will use a hidden argument in that case. */ |
2566 | else if (f->sym->attr.optional && f->sym->attr.value | |
adede54c | 2567 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
f6288c24 | 2568 | && !gfc_bt_struct (f->sym->ts.type)) |
60f97ac8 TB |
2569 | { |
2570 | tree tmp; | |
2571 | strcpy (&name[1], f->sym->name); | |
2572 | name[0] = '_'; | |
2573 | tmp = build_decl (input_location, | |
2574 | PARM_DECL, get_identifier (name), | |
2575 | boolean_type_node); | |
2576 | ||
2577 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2578 | DECL_CONTEXT (tmp) = fndecl; | |
2579 | DECL_ARTIFICIAL (tmp) = 1; | |
2580 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2581 | TREE_READONLY (tmp) = 1; | |
2582 | gfc_finish_decl (tmp); | |
2583 | } | |
6de9cd9a | 2584 | |
417ab240 JJ |
2585 | /* For non-constant length array arguments, make sure they use |
2586 | a different type node from TYPE_ARG_TYPES type. */ | |
2587 | if (f->sym->attr.dimension | |
2588 | && type == TREE_VALUE (typelist) | |
2589 | && TREE_CODE (type) == POINTER_TYPE | |
2590 | && GFC_ARRAY_TYPE_P (type) | |
2591 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2592 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2593 | { | |
2594 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2595 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2596 | else | |
2597 | type = gfc_sym_type (f->sym); | |
2598 | } | |
2599 | ||
8fb74da4 JW |
2600 | if (f->sym->attr.proc_pointer) |
2601 | type = build_pointer_type (type); | |
2602 | ||
c28d1d9b TB |
2603 | if (f->sym->attr.volatile_) |
2604 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2605 | ||
df2fba9e | 2606 | /* Build the argument declaration. */ |
c2255bc4 AH |
2607 | parm = build_decl (input_location, |
2608 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
417ab240 | 2609 | |
c28d1d9b TB |
2610 | if (f->sym->attr.volatile_) |
2611 | { | |
2612 | TREE_THIS_VOLATILE (parm) = 1; | |
2613 | TREE_SIDE_EFFECTS (parm) = 1; | |
2614 | } | |
2615 | ||
417ab240 JJ |
2616 | /* Fill in arg stuff. */ |
2617 | DECL_CONTEXT (parm) = fndecl; | |
2618 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
31ec3535 JJ |
2619 | /* All implementation args except for VALUE are read-only. */ |
2620 | if (!f->sym->attr.value) | |
2621 | TREE_READONLY (parm) = 1; | |
714495cd JJ |
2622 | if (POINTER_TYPE_P (type) |
2623 | && (!f->sym->attr.proc_pointer | |
2624 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2625 | DECL_BY_REFERENCE (parm) = 1; | |
417ab240 | 2626 | |
faf28b3a | 2627 | gfc_finish_decl (parm); |
92d28cbb | 2628 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
417ab240 JJ |
2629 | |
2630 | f->sym->backend_decl = parm; | |
2631 | ||
aa13dc3c TB |
2632 | /* Coarrays which are descriptorless or assumed-shape pass with |
2633 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
f19626cf | 2634 | if (flag_coarray == GFC_FCOARRAY_LIB |
598cc4fa TB |
2635 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2636 | && !f->sym->attr.allocatable) | |
2637 | || (f->sym->ts.type == BT_CLASS | |
2638 | && CLASS_DATA (f->sym)->attr.codimension | |
2639 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
0c53708e TB |
2640 | { |
2641 | tree caf_type; | |
2642 | tree token; | |
2643 | tree offset; | |
2644 | ||
2645 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2646 | && !sym->attr.is_bind_c); | |
598cc4fa TB |
2647 | caf_type = f->sym->ts.type == BT_CLASS |
2648 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2649 | : TREE_TYPE (f->sym->backend_decl); | |
0c53708e | 2650 | |
0c53708e TB |
2651 | token = build_decl (input_location, PARM_DECL, |
2652 | create_tmp_var_name ("caf_token"), | |
2653 | build_qualified_type (pvoid_type_node, | |
2654 | TYPE_QUAL_RESTRICT)); | |
598cc4fa TB |
2655 | if ((f->sym->ts.type != BT_CLASS |
2656 | && f->sym->as->type != AS_DEFERRED) | |
2657 | || (f->sym->ts.type == BT_CLASS | |
2658 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
aa13dc3c TB |
2659 | { |
2660 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2661 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2662 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2663 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2664 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2665 | } | |
2666 | else | |
2667 | { | |
2668 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2669 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2670 | } | |
8b704316 | 2671 | |
0c53708e TB |
2672 | DECL_CONTEXT (token) = fndecl; |
2673 | DECL_ARTIFICIAL (token) = 1; | |
2674 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2675 | TREE_READONLY (token) = 1; | |
2676 | hidden_arglist = chainon (hidden_arglist, token); | |
2677 | gfc_finish_decl (token); | |
2678 | ||
0c53708e TB |
2679 | offset = build_decl (input_location, PARM_DECL, |
2680 | create_tmp_var_name ("caf_offset"), | |
2681 | gfc_array_index_type); | |
2682 | ||
598cc4fa TB |
2683 | if ((f->sym->ts.type != BT_CLASS |
2684 | && f->sym->as->type != AS_DEFERRED) | |
2685 | || (f->sym->ts.type == BT_CLASS | |
2686 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
aa13dc3c TB |
2687 | { |
2688 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2689 | == NULL_TREE); | |
2690 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2691 | } | |
2692 | else | |
2693 | { | |
2694 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2695 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2696 | } | |
0c53708e TB |
2697 | DECL_CONTEXT (offset) = fndecl; |
2698 | DECL_ARTIFICIAL (offset) = 1; | |
2699 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2700 | TREE_READONLY (offset) = 1; | |
2701 | hidden_arglist = chainon (hidden_arglist, offset); | |
2702 | gfc_finish_decl (offset); | |
2703 | } | |
2704 | ||
417ab240 | 2705 | arglist = chainon (arglist, parm); |
1d754240 | 2706 | typelist = TREE_CHAIN (typelist); |
6de9cd9a | 2707 | } |
1d754240 | 2708 | |
7861a5ce TB |
2709 | /* Add the hidden string length parameters, unless the procedure |
2710 | is bind(C). */ | |
2711 | if (!sym->attr.is_bind_c) | |
2712 | arglist = chainon (arglist, hidden_arglist); | |
417ab240 | 2713 | |
884d2e6b SE |
2714 | gcc_assert (hidden_typelist == NULL_TREE |
2715 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
1d754240 | 2716 | DECL_ARGUMENTS (fndecl) = arglist; |
3d79abbd | 2717 | } |
1d754240 | 2718 | |
3d79abbd PB |
2719 | /* Do the setup necessary before generating the body of a function. */ |
2720 | ||
2721 | static void | |
2722 | trans_function_start (gfc_symbol * sym) | |
2723 | { | |
2724 | tree fndecl; | |
2725 | ||
2726 | fndecl = sym->backend_decl; | |
2727 | ||
f8d0aee5 | 2728 | /* Let GCC know the current scope is this function. */ |
3d79abbd PB |
2729 | current_function_decl = fndecl; |
2730 | ||
f8d0aee5 | 2731 | /* Let the world know what we're about to do. */ |
3d79abbd PB |
2732 | announce_function (fndecl); |
2733 | ||
e5b16755 | 2734 | if (DECL_FILE_SCOPE_P (fndecl)) |
3d79abbd | 2735 | { |
f8d0aee5 | 2736 | /* Create RTL for function declaration. */ |
3d79abbd PB |
2737 | rest_of_decl_compilation (fndecl, 1, 0); |
2738 | } | |
2739 | ||
f8d0aee5 | 2740 | /* Create RTL for function definition. */ |
3d79abbd PB |
2741 | make_decl_rtl (fndecl); |
2742 | ||
b6b27e98 | 2743 | allocate_struct_function (fndecl, false); |
3d79abbd | 2744 | |
f8d0aee5 | 2745 | /* function.c requires a push at the start of the function. */ |
87a60f68 | 2746 | pushlevel (); |
3d79abbd PB |
2747 | } |
2748 | ||
2749 | /* Create thunks for alternate entry points. */ | |
2750 | ||
2751 | static void | |
fb55ca75 | 2752 | build_entry_thunks (gfc_namespace * ns, bool global) |
3d79abbd PB |
2753 | { |
2754 | gfc_formal_arglist *formal; | |
2755 | gfc_formal_arglist *thunk_formal; | |
2756 | gfc_entry_list *el; | |
2757 | gfc_symbol *thunk_sym; | |
2758 | stmtblock_t body; | |
2759 | tree thunk_fndecl; | |
3d79abbd | 2760 | tree tmp; |
c8cc8542 | 2761 | locus old_loc; |
3d79abbd PB |
2762 | |
2763 | /* This should always be a toplevel function. */ | |
6e45f57b | 2764 | gcc_assert (current_function_decl == NULL_TREE); |
3d79abbd | 2765 | |
363aab21 | 2766 | gfc_save_backend_locus (&old_loc); |
3d79abbd PB |
2767 | for (el = ns->entries; el; el = el->next) |
2768 | { | |
9771b263 DN |
2769 | vec<tree, va_gc> *args = NULL; |
2770 | vec<tree, va_gc> *string_args = NULL; | |
3bb06db4 | 2771 | |
3d79abbd | 2772 | thunk_sym = el->sym; |
8b704316 | 2773 | |
fb55ca75 | 2774 | build_function_decl (thunk_sym, global); |
3d79abbd PB |
2775 | create_function_arglist (thunk_sym); |
2776 | ||
2777 | trans_function_start (thunk_sym); | |
2778 | ||
2779 | thunk_fndecl = thunk_sym->backend_decl; | |
2780 | ||
c7c79a09 | 2781 | gfc_init_block (&body); |
3d79abbd | 2782 | |
f8d0aee5 | 2783 | /* Pass extra parameter identifying this entry point. */ |
7d60be94 | 2784 | tmp = build_int_cst (gfc_array_index_type, el->id); |
9771b263 | 2785 | vec_safe_push (args, tmp); |
3d79abbd | 2786 | |
d198b59a JJ |
2787 | if (thunk_sym->attr.function) |
2788 | { | |
2789 | if (gfc_return_by_reference (ns->proc_name)) | |
2790 | { | |
2791 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
9771b263 | 2792 | vec_safe_push (args, ref); |
d198b59a | 2793 | if (ns->proc_name->ts.type == BT_CHARACTER) |
9771b263 | 2794 | vec_safe_push (args, DECL_CHAIN (ref)); |
d198b59a JJ |
2795 | } |
2796 | } | |
2797 | ||
4cbc9039 JW |
2798 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2799 | formal = formal->next) | |
3d79abbd | 2800 | { |
d198b59a JJ |
2801 | /* Ignore alternate returns. */ |
2802 | if (formal->sym == NULL) | |
2803 | continue; | |
2804 | ||
3d79abbd PB |
2805 | /* We don't have a clever way of identifying arguments, so resort to |
2806 | a brute-force search. */ | |
4cbc9039 | 2807 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
3d79abbd PB |
2808 | thunk_formal; |
2809 | thunk_formal = thunk_formal->next) | |
2810 | { | |
2811 | if (thunk_formal->sym == formal->sym) | |
2812 | break; | |
2813 | } | |
2814 | ||
2815 | if (thunk_formal) | |
2816 | { | |
2817 | /* Pass the argument. */ | |
3e978d30 | 2818 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
9771b263 | 2819 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
3d79abbd PB |
2820 | if (formal->sym->ts.type == BT_CHARACTER) |
2821 | { | |
bc21d315 | 2822 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
9771b263 | 2823 | vec_safe_push (string_args, tmp); |
3d79abbd PB |
2824 | } |
2825 | } | |
2826 | else | |
2827 | { | |
2828 | /* Pass NULL for a missing argument. */ | |
9771b263 | 2829 | vec_safe_push (args, null_pointer_node); |
3d79abbd PB |
2830 | if (formal->sym->ts.type == BT_CHARACTER) |
2831 | { | |
c3238e32 | 2832 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
9771b263 | 2833 | vec_safe_push (string_args, tmp); |
3d79abbd PB |
2834 | } |
2835 | } | |
2836 | } | |
2837 | ||
2838 | /* Call the master function. */ | |
9771b263 | 2839 | vec_safe_splice (args, string_args); |
3d79abbd | 2840 | tmp = ns->proc_name->backend_decl; |
3bb06db4 | 2841 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
d198b59a JJ |
2842 | if (ns->proc_name->attr.mixed_entry_master) |
2843 | { | |
2844 | tree union_decl, field; | |
2845 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2846 | ||
c2255bc4 AH |
2847 | union_decl = build_decl (input_location, |
2848 | VAR_DECL, get_identifier ("__result"), | |
d198b59a JJ |
2849 | TREE_TYPE (master_type)); |
2850 | DECL_ARTIFICIAL (union_decl) = 1; | |
2851 | DECL_EXTERNAL (union_decl) = 0; | |
2852 | TREE_PUBLIC (union_decl) = 0; | |
2853 | TREE_USED (union_decl) = 1; | |
2854 | layout_decl (union_decl, 0); | |
2855 | pushdecl (union_decl); | |
2856 | ||
2857 | DECL_CONTEXT (union_decl) = current_function_decl; | |
bc98ed60 TB |
2858 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2859 | TREE_TYPE (union_decl), union_decl, tmp); | |
d198b59a JJ |
2860 | gfc_add_expr_to_block (&body, tmp); |
2861 | ||
2862 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
910ad8de | 2863 | field; field = DECL_CHAIN (field)) |
d198b59a JJ |
2864 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2865 | thunk_sym->result->name) == 0) | |
2866 | break; | |
2867 | gcc_assert (field != NULL_TREE); | |
bc98ed60 TB |
2868 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2869 | TREE_TYPE (field), union_decl, field, | |
2870 | NULL_TREE); | |
8b704316 | 2871 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
44855d8c TS |
2872 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2873 | DECL_RESULT (current_function_decl), tmp); | |
d198b59a JJ |
2874 | tmp = build1_v (RETURN_EXPR, tmp); |
2875 | } | |
2876 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2877 | != void_type_node) | |
2878 | { | |
bc98ed60 | 2879 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
44855d8c TS |
2880 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2881 | DECL_RESULT (current_function_decl), tmp); | |
d198b59a JJ |
2882 | tmp = build1_v (RETURN_EXPR, tmp); |
2883 | } | |
3d79abbd PB |
2884 | gfc_add_expr_to_block (&body, tmp); |
2885 | ||
2886 | /* Finish off this function and send it for code generation. */ | |
2887 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
c7c79a09 | 2888 | tmp = getdecls (); |
87a60f68 | 2889 | poplevel (1, 1); |
3d79abbd | 2890 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
c7c79a09 JJ |
2891 | DECL_SAVED_TREE (thunk_fndecl) |
2892 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2893 | DECL_INITIAL (thunk_fndecl)); | |
3d79abbd PB |
2894 | |
2895 | /* Output the GENERIC tree. */ | |
2896 | dump_function (TDI_original, thunk_fndecl); | |
2897 | ||
2898 | /* Store the end of the function, so that we get good line number | |
2899 | info for the epilogue. */ | |
2900 | cfun->function_end_locus = input_location; | |
2901 | ||
2902 | /* We're leaving the context of this function, so zap cfun. | |
2903 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2904 | tree_rest_of_compilation. */ | |
db2960f4 | 2905 | set_cfun (NULL); |
3d79abbd PB |
2906 | |
2907 | current_function_decl = NULL_TREE; | |
2908 | ||
3dafb85c | 2909 | cgraph_node::finalize_function (thunk_fndecl, true); |
3d79abbd PB |
2910 | |
2911 | /* We share the symbols in the formal argument list with other entry | |
2912 | points and the master function. Clear them so that they are | |
2913 | recreated for each function. */ | |
4cbc9039 JW |
2914 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2915 | formal = formal->next) | |
d198b59a JJ |
2916 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2917 | { | |
2918 | formal->sym->backend_decl = NULL_TREE; | |
2919 | if (formal->sym->ts.type == BT_CHARACTER) | |
bc21d315 | 2920 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
d198b59a JJ |
2921 | } |
2922 | ||
2923 | if (thunk_sym->attr.function) | |
3d79abbd | 2924 | { |
d198b59a | 2925 | if (thunk_sym->ts.type == BT_CHARACTER) |
bc21d315 | 2926 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
d198b59a | 2927 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
bc21d315 | 2928 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
3d79abbd PB |
2929 | } |
2930 | } | |
c8cc8542 | 2931 | |
363aab21 | 2932 | gfc_restore_backend_locus (&old_loc); |
3d79abbd PB |
2933 | } |
2934 | ||
2935 | ||
2936 | /* Create a decl for a function, and create any thunks for alternate entry | |
fb55ca75 TB |
2937 | points. If global is true, generate the function in the global binding |
2938 | level, otherwise in the current binding level (which can be global). */ | |
3d79abbd PB |
2939 | |
2940 | void | |
fb55ca75 | 2941 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
3d79abbd PB |
2942 | { |
2943 | /* Create a declaration for the master function. */ | |
fb55ca75 | 2944 | build_function_decl (ns->proc_name, global); |
3d79abbd | 2945 | |
f8d0aee5 | 2946 | /* Compile the entry thunks. */ |
3d79abbd | 2947 | if (ns->entries) |
fb55ca75 | 2948 | build_entry_thunks (ns, global); |
3d79abbd PB |
2949 | |
2950 | /* Now create the read argument list. */ | |
2951 | create_function_arglist (ns->proc_name); | |
dd2fc525 JJ |
2952 | |
2953 | if (ns->omp_declare_simd) | |
2954 | gfc_trans_omp_declare_simd (ns); | |
3d79abbd PB |
2955 | } |
2956 | ||
5f20c93a | 2957 | /* Return the decl used to hold the function return value. If |
da4c6ed8 | 2958 | parent_flag is set, the context is the parent_scope. */ |
6de9cd9a DN |
2959 | |
2960 | tree | |
5f20c93a | 2961 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
6de9cd9a | 2962 | { |
5f20c93a PT |
2963 | tree decl; |
2964 | tree length; | |
2965 | tree this_fake_result_decl; | |
2966 | tree this_function_decl; | |
6de9cd9a DN |
2967 | |
2968 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2969 | ||
5f20c93a PT |
2970 | if (parent_flag) |
2971 | { | |
2972 | this_fake_result_decl = parent_fake_result_decl; | |
2973 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2974 | } | |
2975 | else | |
2976 | { | |
2977 | this_fake_result_decl = current_fake_result_decl; | |
2978 | this_function_decl = current_function_decl; | |
2979 | } | |
2980 | ||
d198b59a | 2981 | if (sym |
5f20c93a | 2982 | && sym->ns->proc_name->backend_decl == this_function_decl |
417ab240 | 2983 | && sym->ns->proc_name->attr.entry_master |
d198b59a JJ |
2984 | && sym != sym->ns->proc_name) |
2985 | { | |
417ab240 | 2986 | tree t = NULL, var; |
5f20c93a PT |
2987 | if (this_fake_result_decl != NULL) |
2988 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
417ab240 JJ |
2989 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2990 | break; | |
2991 | if (t) | |
2992 | return TREE_VALUE (t); | |
5f20c93a PT |
2993 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2994 | ||
2995 | if (parent_flag) | |
2996 | this_fake_result_decl = parent_fake_result_decl; | |
2997 | else | |
2998 | this_fake_result_decl = current_fake_result_decl; | |
2999 | ||
417ab240 | 3000 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
d198b59a JJ |
3001 | { |
3002 | tree field; | |
3003 | ||
3004 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
910ad8de | 3005 | field; field = DECL_CHAIN (field)) |
d198b59a JJ |
3006 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
3007 | sym->name) == 0) | |
3008 | break; | |
3009 | ||
3010 | gcc_assert (field != NULL_TREE); | |
bc98ed60 TB |
3011 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
3012 | TREE_TYPE (field), decl, field, NULL_TREE); | |
d198b59a | 3013 | } |
5f20c93a PT |
3014 | |
3015 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
3016 | if (parent_flag) | |
3017 | gfc_add_decl_to_parent_function (var); | |
3018 | else | |
3019 | gfc_add_decl_to_function (var); | |
3020 | ||
417ab240 JJ |
3021 | SET_DECL_VALUE_EXPR (var, decl); |
3022 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
4b8ae4db | 3023 | GFC_DECL_RESULT (var) = 1; |
5f20c93a PT |
3024 | |
3025 | TREE_CHAIN (this_fake_result_decl) | |
3026 | = tree_cons (get_identifier (sym->name), var, | |
3027 | TREE_CHAIN (this_fake_result_decl)); | |
417ab240 | 3028 | return var; |
d198b59a JJ |
3029 | } |
3030 | ||
5f20c93a PT |
3031 | if (this_fake_result_decl != NULL_TREE) |
3032 | return TREE_VALUE (this_fake_result_decl); | |
6de9cd9a DN |
3033 | |
3034 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
3035 | sym is NULL. */ | |
3036 | if (!sym) | |
3037 | return NULL_TREE; | |
3038 | ||
417ab240 | 3039 | if (sym->ts.type == BT_CHARACTER) |
6de9cd9a | 3040 | { |
bc21d315 | 3041 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
417ab240 JJ |
3042 | length = gfc_create_string_length (sym); |
3043 | else | |
bc21d315 | 3044 | length = sym->ts.u.cl->backend_decl; |
d168c883 | 3045 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
a7d6b765 | 3046 | gfc_add_decl_to_function (length); |
6de9cd9a DN |
3047 | } |
3048 | ||
3049 | if (gfc_return_by_reference (sym)) | |
3050 | { | |
5f20c93a | 3051 | decl = DECL_ARGUMENTS (this_function_decl); |
d198b59a | 3052 | |
5f20c93a | 3053 | if (sym->ns->proc_name->backend_decl == this_function_decl |
d198b59a | 3054 | && sym->ns->proc_name->attr.entry_master) |
910ad8de | 3055 | decl = DECL_CHAIN (decl); |
6de9cd9a DN |
3056 | |
3057 | TREE_USED (decl) = 1; | |
3058 | if (sym->as) | |
3059 | decl = gfc_build_dummy_array_decl (sym, decl); | |
3060 | } | |
3061 | else | |
3062 | { | |
3063 | sprintf (name, "__result_%.20s", | |
5f20c93a | 3064 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
6de9cd9a | 3065 | |
da4c6ed8 | 3066 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
88e09c79 | 3067 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
c2255bc4 | 3068 | VAR_DECL, get_identifier (name), |
da4c6ed8 TS |
3069 | gfc_sym_type (sym)); |
3070 | else | |
88e09c79 | 3071 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
c2255bc4 | 3072 | VAR_DECL, get_identifier (name), |
da4c6ed8 | 3073 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
6de9cd9a DN |
3074 | DECL_ARTIFICIAL (decl) = 1; |
3075 | DECL_EXTERNAL (decl) = 0; | |
3076 | TREE_PUBLIC (decl) = 0; | |
3077 | TREE_USED (decl) = 1; | |
6c7a4dfd | 3078 | GFC_DECL_RESULT (decl) = 1; |
c55cebda | 3079 | TREE_ADDRESSABLE (decl) = 1; |
6de9cd9a DN |
3080 | |
3081 | layout_decl (decl, 0); | |
92d28cbb | 3082 | gfc_finish_decl_attrs (decl, &sym->attr); |
6de9cd9a | 3083 | |
5f20c93a PT |
3084 | if (parent_flag) |
3085 | gfc_add_decl_to_parent_function (decl); | |
3086 | else | |
3087 | gfc_add_decl_to_function (decl); | |
6de9cd9a DN |
3088 | } |
3089 | ||
5f20c93a PT |
3090 | if (parent_flag) |
3091 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3092 | else | |
3093 | current_fake_result_decl = build_tree_list (NULL, decl); | |
6de9cd9a DN |
3094 | |
3095 | return decl; | |
3096 | } | |
3097 | ||
3098 | ||
3099 | /* Builds a function decl. The remaining parameters are the types of the | |
3100 | function arguments. Negative nargs indicates a varargs function. */ | |
3101 | ||
0b7b376d RG |
3102 | static tree |
3103 | build_library_function_decl_1 (tree name, const char *spec, | |
3104 | tree rettype, int nargs, va_list p) | |
6de9cd9a | 3105 | { |
9771b263 | 3106 | vec<tree, va_gc> *arglist; |
6de9cd9a DN |
3107 | tree fntype; |
3108 | tree fndecl; | |
6de9cd9a DN |
3109 | int n; |
3110 | ||
3111 | /* Library functions must be declared with global scope. */ | |
6e45f57b | 3112 | gcc_assert (current_function_decl == NULL_TREE); |
6de9cd9a | 3113 | |
6de9cd9a | 3114 | /* Create a list of the argument types. */ |
9771b263 | 3115 | vec_alloc (arglist, abs (nargs)); |
6c32445b | 3116 | for (n = abs (nargs); n > 0; n--) |
6de9cd9a | 3117 | { |
6c32445b | 3118 | tree argtype = va_arg (p, tree); |
9771b263 | 3119 | arglist->quick_push (argtype); |
6de9cd9a DN |
3120 | } |
3121 | ||
3122 | /* Build the function type and decl. */ | |
6c32445b NF |
3123 | if (nargs >= 0) |
3124 | fntype = build_function_type_vec (rettype, arglist); | |
3125 | else | |
3126 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
0b7b376d RG |
3127 | if (spec) |
3128 | { | |
3129 | tree attr_args = build_tree_list (NULL_TREE, | |
3130 | build_string (strlen (spec), spec)); | |
3131 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3132 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3133 | fntype = build_type_attribute_variant (fntype, attrs); | |
3134 | } | |
c2255bc4 AH |
3135 | fndecl = build_decl (input_location, |
3136 | FUNCTION_DECL, name, fntype); | |
6de9cd9a DN |
3137 | |
3138 | /* Mark this decl as external. */ | |
3139 | DECL_EXTERNAL (fndecl) = 1; | |
3140 | TREE_PUBLIC (fndecl) = 1; | |
3141 | ||
6de9cd9a DN |
3142 | pushdecl (fndecl); |
3143 | ||
0e6df31e | 3144 | rest_of_decl_compilation (fndecl, 1, 0); |
6de9cd9a DN |
3145 | |
3146 | return fndecl; | |
3147 | } | |
3148 | ||
0b7b376d RG |
3149 | /* Builds a function decl. The remaining parameters are the types of the |
3150 | function arguments. Negative nargs indicates a varargs function. */ | |
3151 | ||
3152 | tree | |
3153 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3154 | { | |
3155 | tree ret; | |
3156 | va_list args; | |
3157 | va_start (args, nargs); | |
3158 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3159 | va_end (args); | |
3160 | return ret; | |
3161 | } | |
3162 | ||
3163 | /* Builds a function decl. The remaining parameters are the types of the | |
3164 | function arguments. Negative nargs indicates a varargs function. | |
3165 | The SPEC parameter specifies the function argument and return type | |
3166 | specification according to the fnspec function type attribute. */ | |
3167 | ||
3f34855a | 3168 | tree |
0b7b376d RG |
3169 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3170 | tree rettype, int nargs, ...) | |
3171 | { | |
3172 | tree ret; | |
3173 | va_list args; | |
3174 | va_start (args, nargs); | |
3175 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3176 | va_end (args); | |
3177 | return ret; | |
3178 | } | |
3179 | ||
6de9cd9a DN |
3180 | static void |
3181 | gfc_build_intrinsic_function_decls (void) | |
3182 | { | |
e2cad04b | 3183 | tree gfc_int4_type_node = gfc_get_int_type (4); |
a416c4c7 | 3184 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
e2cad04b | 3185 | tree gfc_int8_type_node = gfc_get_int_type (8); |
a416c4c7 | 3186 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
644cb69f | 3187 | tree gfc_int16_type_node = gfc_get_int_type (16); |
e2cad04b | 3188 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
374929b2 FXC |
3189 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3190 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
e2cad04b | 3191 | |
6de9cd9a | 3192 | /* String functions. */ |
6368f166 DF |
3193 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3194 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3195 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3196 | gfc_charlen_type_node, pchar1_type_node); | |
4ca4be7f | 3197 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
22b139e1 | 3198 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
6368f166 DF |
3199 | |
3200 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3201 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3202 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3203 | gfc_charlen_type_node, pchar1_type_node, | |
3204 | gfc_charlen_type_node, pchar1_type_node); | |
22b139e1 | 3205 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
6368f166 DF |
3206 | |
3207 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3208 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3209 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
4ca4be7f | 3210 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
22b139e1 | 3211 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
6368f166 DF |
3212 | |
3213 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3214 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3215 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3216 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3217 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
22b139e1 | 3218 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
6368f166 DF |
3219 | |
3220 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3221 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3222 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3223 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3224 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
22b139e1 | 3225 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
6368f166 DF |
3226 | |
3227 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3228 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3229 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3230 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3231 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
22b139e1 | 3232 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
6368f166 DF |
3233 | |
3234 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3235 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3236 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3237 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3238 | pchar1_type_node); | |
3239 | ||
3240 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3241 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3242 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3243 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3244 | integer_type_node); | |
3245 | ||
3246 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3247 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3248 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3249 | pchar1_type_node); | |
22b139e1 | 3250 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
6368f166 DF |
3251 | |
3252 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3253 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3254 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3255 | pchar1_type_node); | |
22b139e1 | 3256 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
6368f166 DF |
3257 | |
3258 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3259 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3260 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3261 | pchar1_type_node, gfc_charlen_type_node); | |
4ca4be7f | 3262 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
22b139e1 | 3263 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
6368f166 DF |
3264 | |
3265 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3266 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3267 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3268 | gfc_charlen_type_node, pchar4_type_node); | |
4ca4be7f | 3269 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
22b139e1 | 3270 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
6368f166 DF |
3271 | |
3272 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3273 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3274 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3275 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3276 | pchar4_type_node); | |
22b139e1 | 3277 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
6368f166 DF |
3278 | |
3279 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3280 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3281 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
4ca4be7f | 3282 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
22b139e1 | 3283 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
6368f166 DF |
3284 | |
3285 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3286 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3287 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3288 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3289 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
22b139e1 | 3290 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
6368f166 DF |
3291 | |
3292 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3293 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3294 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3295 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3296 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
22b139e1 | 3297 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
6368f166 DF |
3298 | |
3299 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3300 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3301 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3302 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3303 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
22b139e1 | 3304 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
6368f166 DF |
3305 | |
3306 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3307 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3308 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3309 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3310 | pchar4_type_node); | |
3311 | ||
3312 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3313 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3314 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3315 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3316 | integer_type_node); | |
3317 | ||
3318 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3319 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3320 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3321 | pchar4_type_node); | |
22b139e1 | 3322 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
6368f166 DF |
3323 | |
3324 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3325 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3326 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3327 | pchar4_type_node); | |
22b139e1 | 3328 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
6368f166 DF |
3329 | |
3330 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3331 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3332 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3333 | pvoid_type_node, gfc_charlen_type_node); | |
4ca4be7f | 3334 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
22b139e1 | 3335 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
d393bbd7 FXC |
3336 | |
3337 | ||
3338 | /* Conversion between character kinds. */ | |
3339 | ||
6368f166 DF |
3340 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3341 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3342 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3343 | gfc_charlen_type_node, pchar1_type_node); | |
d393bbd7 | 3344 | |
6368f166 DF |
3345 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3346 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3347 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3348 | gfc_charlen_type_node, pchar4_type_node); | |
d393bbd7 | 3349 | |
374929b2 | 3350 | /* Misc. functions. */ |
2263c775 | 3351 | |
6368f166 DF |
3352 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3353 | get_identifier (PREFIX("ttynam")), ".W", | |
3354 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3355 | integer_type_node); | |
3356 | ||
3357 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3358 | get_identifier (PREFIX("fdate")), ".W", | |
3359 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3360 | ||
3361 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3362 | get_identifier (PREFIX("ctime")), ".W", | |
3363 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3364 | gfc_int8_type_node); | |
3365 | ||
3366 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3367 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3368 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
4ca4be7f | 3369 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
22b139e1 | 3370 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
6368f166 DF |
3371 | |
3372 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3373 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3374 | gfc_int4_type_node, 1, pvoid_type_node); | |
4ca4be7f | 3375 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
22b139e1 | 3376 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
6368f166 DF |
3377 | |
3378 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3379 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3380 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3381 | pvoid_type_node); | |
4ca4be7f | 3382 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
22b139e1 | 3383 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
6de9cd9a | 3384 | |
a416c4c7 FXC |
3385 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3386 | get_identifier (PREFIX("system_clock_4")), | |
3387 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3388 | gfc_pint4_type_node); | |
3389 | ||
3390 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3391 | get_identifier (PREFIX("system_clock_8")), | |
3392 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3393 | gfc_pint8_type_node); | |
3394 | ||
6de9cd9a | 3395 | /* Power functions. */ |
5b200ac2 | 3396 | { |
644cb69f FXC |
3397 | tree ctype, rtype, itype, jtype; |
3398 | int rkind, ikind, jkind; | |
3399 | #define NIKINDS 3 | |
3400 | #define NRKINDS 4 | |
3401 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3402 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3403 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3404 | ||
3405 | for (ikind=0; ikind < NIKINDS; ikind++) | |
5b200ac2 | 3406 | { |
644cb69f FXC |
3407 | itype = gfc_get_int_type (ikinds[ikind]); |
3408 | ||
3409 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3410 | { | |
3411 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3412 | if (itype && jtype) | |
3413 | { | |
f8862a1b | 3414 | sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind], |
644cb69f FXC |
3415 | ikinds[jkind]); |
3416 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3417 | gfc_build_library_function_decl (get_identifier (name), | |
3418 | jtype, 2, jtype, itype); | |
67fdae36 | 3419 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
22b139e1 | 3420 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
644cb69f FXC |
3421 | } |
3422 | } | |
3423 | ||
3424 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
5b200ac2 | 3425 | { |
644cb69f FXC |
3426 | rtype = gfc_get_real_type (rkinds[rkind]); |
3427 | if (rtype && itype) | |
3428 | { | |
f8862a1b | 3429 | sprintf (name, PREFIX("pow_r%d_i%d"), rkinds[rkind], |
644cb69f FXC |
3430 | ikinds[ikind]); |
3431 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3432 | gfc_build_library_function_decl (get_identifier (name), | |
3433 | rtype, 2, rtype, itype); | |
67fdae36 | 3434 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
22b139e1 | 3435 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
644cb69f FXC |
3436 | } |
3437 | ||
3438 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3439 | if (ctype && itype) | |
3440 | { | |
f8862a1b | 3441 | sprintf (name, PREFIX("pow_c%d_i%d"), rkinds[rkind], |
644cb69f FXC |
3442 | ikinds[ikind]); |
3443 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3444 | gfc_build_library_function_decl (get_identifier (name), | |
3445 | ctype, 2,ctype, itype); | |
67fdae36 | 3446 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
22b139e1 | 3447 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
644cb69f | 3448 | } |
5b200ac2 FW |
3449 | } |
3450 | } | |
644cb69f FXC |
3451 | #undef NIKINDS |
3452 | #undef NRKINDS | |
5b200ac2 FW |
3453 | } |
3454 | ||
6368f166 DF |
3455 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3456 | get_identifier (PREFIX("ishftc4")), | |
3457 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3458 | gfc_int4_type_node); | |
22b139e1 JJ |
3459 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3460 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
8b704316 | 3461 | |
6368f166 DF |
3462 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3463 | get_identifier (PREFIX("ishftc8")), | |
3464 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3465 | gfc_int4_type_node); | |
22b139e1 JJ |
3466 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3467 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
6368f166 | 3468 | |
644cb69f | 3469 | if (gfc_int16_type_node) |
22b139e1 JJ |
3470 | { |
3471 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
6368f166 DF |
3472 | get_identifier (PREFIX("ishftc16")), |
3473 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3474 | gfc_int4_type_node); | |
22b139e1 JJ |
3475 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3476 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3477 | } | |
644cb69f | 3478 | |
5a0aad31 FXC |
3479 | /* BLAS functions. */ |
3480 | { | |
dd52ecb0 | 3481 | tree pint = build_pointer_type (integer_type_node); |
5a0aad31 FXC |
3482 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3483 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3484 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3485 | tree pz = build_pointer_type | |
3486 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3487 | ||
3488 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3489 | (get_identifier | |
c61819ff | 3490 | (flag_underscoring ? "sgemm_" : "sgemm"), |
5a0aad31 FXC |
3491 | void_type_node, 15, pchar_type_node, |
3492 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
dd52ecb0 JB |
3493 | ps, pint, ps, ps, pint, integer_type_node, |
3494 | integer_type_node); | |
5a0aad31 FXC |
3495 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3496 | (get_identifier | |
c61819ff | 3497 | (flag_underscoring ? "dgemm_" : "dgemm"), |
5a0aad31 FXC |
3498 | void_type_node, 15, pchar_type_node, |
3499 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
dd52ecb0 JB |
3500 | pd, pint, pd, pd, pint, integer_type_node, |
3501 | integer_type_node); | |
5a0aad31 FXC |
3502 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3503 | (get_identifier | |
c61819ff | 3504 | (flag_underscoring ? "cgemm_" : "cgemm"), |
5a0aad31 FXC |
3505 | void_type_node, 15, pchar_type_node, |
3506 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
dd52ecb0 JB |
3507 | pc, pint, pc, pc, pint, integer_type_node, |
3508 | integer_type_node); | |
5a0aad31 FXC |
3509 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3510 | (get_identifier | |
c61819ff | 3511 | (flag_underscoring ? "zgemm_" : "zgemm"), |
5a0aad31 FXC |
3512 | void_type_node, 15, pchar_type_node, |
3513 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
dd52ecb0 JB |
3514 | pz, pint, pz, pz, pint, integer_type_node, |
3515 | integer_type_node); | |
5a0aad31 FXC |
3516 | } |
3517 | ||
6de9cd9a | 3518 | /* Other functions. */ |
6368f166 DF |
3519 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3520 | get_identifier (PREFIX("size0")), ".R", | |
3521 | gfc_array_index_type, 1, pvoid_type_node); | |
4ca4be7f | 3522 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
22b139e1 | 3523 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
6368f166 DF |
3524 | |
3525 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3526 | get_identifier (PREFIX("size1")), ".R", | |
3527 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
4ca4be7f | 3528 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
22b139e1 | 3529 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
6368f166 DF |
3530 | |
3531 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3532 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
22b139e1 | 3533 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
17164de4 SK |
3534 | |
3535 | gfor_fndecl_kill_sub = gfc_build_library_function_decl ( | |
3536 | get_identifier (PREFIX ("kill_sub")), void_type_node, | |
3537 | 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node); | |
3538 | ||
3539 | gfor_fndecl_kill = gfc_build_library_function_decl ( | |
3540 | get_identifier (PREFIX ("kill")), gfc_int4_type_node, | |
3541 | 2, gfc_int4_type_node, gfc_int4_type_node); | |
6de9cd9a DN |
3542 | } |
3543 | ||
3544 | ||
3545 | /* Make prototypes for runtime library functions. */ | |
3546 | ||
3547 | void | |
3548 | gfc_build_builtin_function_decls (void) | |
3549 | { | |
6cc22cf4 | 3550 | tree gfc_int8_type_node = gfc_get_int_type (8); |
6de9cd9a | 3551 | |
6368f166 DF |
3552 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3553 | get_identifier (PREFIX("stop_numeric")), | |
dffb1e22 | 3554 | void_type_node, 2, integer_type_node, boolean_type_node); |
6d1b0f92 | 3555 | /* STOP doesn't return. */ |
eed61baa TK |
3556 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3557 | ||
6368f166 DF |
3558 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3559 | get_identifier (PREFIX("stop_string")), ".R.", | |
dffb1e22 JB |
3560 | void_type_node, 3, pchar_type_node, size_type_node, |
3561 | boolean_type_node); | |
6d1b0f92 | 3562 | /* STOP doesn't return. */ |
6368f166 | 3563 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
4ca4be7f | 3564 | |
6368f166 DF |
3565 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3566 | get_identifier (PREFIX("error_stop_numeric")), | |
dffb1e22 | 3567 | void_type_node, 2, integer_type_node, boolean_type_node); |
6d1b0f92 JD |
3568 | /* ERROR STOP doesn't return. */ |
3569 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3570 | ||
6368f166 DF |
3571 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3572 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
dffb1e22 JB |
3573 | void_type_node, 3, pchar_type_node, size_type_node, |
3574 | boolean_type_node); | |
d0a4a61c TB |
3575 | /* ERROR STOP doesn't return. */ |
3576 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3577 | ||
6368f166 DF |
3578 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3579 | get_identifier (PREFIX("pause_numeric")), | |
6cc22cf4 | 3580 | void_type_node, 1, gfc_int8_type_node); |
6d1b0f92 | 3581 | |
6368f166 DF |
3582 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3583 | get_identifier (PREFIX("pause_string")), ".R.", | |
6cc22cf4 | 3584 | void_type_node, 2, pchar_type_node, size_type_node); |
6de9cd9a | 3585 | |
6368f166 DF |
3586 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3587 | get_identifier (PREFIX("runtime_error")), ".R", | |
3588 | void_type_node, -1, pchar_type_node); | |
16275f18 SB |
3589 | /* The runtime_error function does not return. */ |
3590 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
6de9cd9a | 3591 | |
6368f166 DF |
3592 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3593 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3594 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
f96d606f JD |
3595 | /* The runtime_error_at function does not return. */ |
3596 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
8b704316 | 3597 | |
6368f166 DF |
3598 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3599 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3600 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3601 | ||
3602 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3603 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3604 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3605 | pchar_type_node); | |
3606 | ||
3607 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3608 | get_identifier (PREFIX("os_error")), ".R", | |
3609 | void_type_node, 1, pchar_type_node); | |
1529b8d9 FXC |
3610 | /* The runtime_error function does not return. */ |
3611 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3612 | ||
6368f166 DF |
3613 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3614 | get_identifier (PREFIX("set_args")), | |
3615 | void_type_node, 2, integer_type_node, | |
3616 | build_pointer_type (pchar_type_node)); | |
092231a8 | 3617 | |
6368f166 DF |
3618 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3619 | get_identifier (PREFIX("set_fpe")), | |
3620 | void_type_node, 1, integer_type_node); | |
944b8b35 | 3621 | |
8b198102 FXC |
3622 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3623 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3624 | void_type_node, 1, pvoid_type_node); | |
3625 | ||
3626 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3627 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3628 | void_type_node, 1, pvoid_type_node); | |
3629 | ||
68d2e027 | 3630 | /* Keep the array dimension in sync with the call, later in this file. */ |
6368f166 DF |
3631 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3632 | get_identifier (PREFIX("set_options")), "..R", | |
3633 | void_type_node, 2, integer_type_node, | |
3634 | build_pointer_type (integer_type_node)); | |
8b67b708 | 3635 | |
6368f166 DF |
3636 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3637 | get_identifier (PREFIX("set_convert")), | |
3638 | void_type_node, 1, integer_type_node); | |
eaa90d25 | 3639 | |
6368f166 DF |
3640 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3641 | get_identifier (PREFIX("set_record_marker")), | |
3642 | void_type_node, 1, integer_type_node); | |
d67ab5ee | 3643 | |
6368f166 DF |
3644 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3645 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3646 | void_type_node, 1, integer_type_node); | |
07b3bbf2 | 3647 | |
0b7b376d | 3648 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
6368f166 DF |
3649 | get_identifier (PREFIX("internal_pack")), ".r", |
3650 | pvoid_type_node, 1, pvoid_type_node); | |
6de9cd9a | 3651 | |
0b7b376d | 3652 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
6368f166 DF |
3653 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3654 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3655 | ||
3656 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3657 | get_identifier (PREFIX("associated")), ".RR", | |
3658 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
4ca4be7f | 3659 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
22b139e1 | 3660 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
6de9cd9a | 3661 | |
60386f50 | 3662 | /* Coarray library calls. */ |
f19626cf | 3663 | if (flag_coarray == GFC_FCOARRAY_LIB) |
60386f50 TB |
3664 | { |
3665 | tree pint_type, pppchar_type; | |
3666 | ||
3667 | pint_type = build_pointer_type (integer_type_node); | |
3668 | pppchar_type | |
3669 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3670 | ||
3671 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
4971dd80 AV |
3672 | get_identifier (PREFIX("caf_init")), void_type_node, |
3673 | 2, pint_type, pppchar_type); | |
60386f50 TB |
3674 | |
3675 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3676 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3677 | ||
a8a5f4a9 | 3678 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
4971dd80 AV |
3679 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3680 | 1, integer_type_node); | |
a8a5f4a9 TB |
3681 | |
3682 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
4971dd80 AV |
3683 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3684 | 2, integer_type_node, integer_type_node); | |
a8a5f4a9 | 3685 | |
b8ff4e88 | 3686 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3c9f5092 AV |
3687 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3688 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
3f5fabc0 | 3689 | pint_type, pchar_type_node, size_type_node); |
5d81ddd0 TB |
3690 | |
3691 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
ba85c8c3 AV |
3692 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3693 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
3f5fabc0 | 3694 | size_type_node); |
b8ff4e88 | 3695 | |
b5116268 | 3696 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
4971dd80 AV |
3697 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3698 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
93e2e046 | 3699 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
20d0bfce | 3700 | boolean_type_node, pint_type); |
b5116268 TB |
3701 | |
3702 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
f8862a1b | 3703 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRWR", void_type_node, 11, |
4971dd80 | 3704 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
93e2e046 | 3705 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
f8862a1b | 3706 | boolean_type_node, pint_type, pvoid_type_node); |
b5116268 TB |
3707 | |
3708 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3c9f5092 AV |
3709 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3710 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3711 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3712 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3713 | integer_type_node, boolean_type_node, integer_type_node); | |
3714 | ||
3715 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3716 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRWR", void_type_node, |
3717 | 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3718 | pvoid_type_node, integer_type_node, integer_type_node, | |
3719 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
3c9f5092 AV |
3720 | |
3721 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3722 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRWR", |
3723 | void_type_node, 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3724 | pvoid_type_node, integer_type_node, integer_type_node, | |
3725 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
3c9f5092 AV |
3726 | |
3727 | gfor_fndecl_caf_sendget_by_ref | |
3728 | = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3729 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWWRR", |
3730 | void_type_node, 13, pvoid_type_node, integer_type_node, | |
3c9f5092 AV |
3731 | pvoid_type_node, pvoid_type_node, integer_type_node, |
3732 | pvoid_type_node, integer_type_node, integer_type_node, | |
87e8aa3b AV |
3733 | boolean_type_node, pint_type, pint_type, integer_type_node, |
3734 | integer_type_node); | |
b5116268 | 3735 | |
60386f50 | 3736 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
f5c01f5b | 3737 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
3f5fabc0 | 3738 | 3, pint_type, pchar_type_node, size_type_node); |
60386f50 | 3739 | |
9315dff0 AF |
3740 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3741 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3f5fabc0 | 3742 | 3, pint_type, pchar_type_node, size_type_node); |
9315dff0 | 3743 | |
60386f50 | 3744 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
f5c01f5b DC |
3745 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3746 | 5, integer_type_node, pint_type, pint_type, | |
3f5fabc0 | 3747 | pchar_type_node, size_type_node); |
60386f50 TB |
3748 | |
3749 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3750 | get_identifier (PREFIX("caf_error_stop")), | |
3f5fabc0 | 3751 | void_type_node, 1, integer_type_node); |
60386f50 TB |
3752 | /* CAF's ERROR STOP doesn't return. */ |
3753 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3754 | ||
3755 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3756 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3f5fabc0 | 3757 | void_type_node, 2, pchar_type_node, size_type_node); |
60386f50 TB |
3758 | /* CAF's ERROR STOP doesn't return. */ |
3759 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
d62cf3df | 3760 | |
0daa7ed9 | 3761 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
4971dd80 | 3762 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
3f5fabc0 | 3763 | void_type_node, 1, integer_type_node); |
0daa7ed9 AF |
3764 | /* CAF's STOP doesn't return. */ |
3765 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3766 | ||
3767 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
4971dd80 | 3768 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
3f5fabc0 | 3769 | void_type_node, 2, pchar_type_node, size_type_node); |
0daa7ed9 AF |
3770 | /* CAF's STOP doesn't return. */ |
3771 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3772 | ||
42a8246d TB |
3773 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3774 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3775 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3776 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
42a8246d TB |
3777 | |
3778 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3779 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3780 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3781 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
42a8246d TB |
3782 | |
3783 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3784 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3785 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3786 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
42a8246d TB |
3787 | integer_type_node, integer_type_node); |
3788 | ||
3789 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3790 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3791 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3792 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3793 | integer_type_node, integer_type_node); | |
3794 | ||
bc0229f9 TB |
3795 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3796 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3797 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3798 | pint_type, pint_type, pchar_type_node, size_type_node); |
bc0229f9 TB |
3799 | |
3800 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3801 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
772e797a | 3802 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
3f5fabc0 | 3803 | pint_type, pchar_type_node, size_type_node); |
bc0229f9 | 3804 | |
5df445a2 TB |
3805 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3806 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3807 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3808 | pint_type, pchar_type_node, size_type_node); |
5df445a2 TB |
3809 | |
3810 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3811 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3812 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3813 | pint_type, pchar_type_node, size_type_node); |
5df445a2 TB |
3814 | |
3815 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3816 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3817 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3818 | pint_type, pint_type); | |
3819 | ||
ef78bc3c AV |
3820 | gfor_fndecl_caf_fail_image = gfc_build_library_function_decl ( |
3821 | get_identifier (PREFIX("caf_fail_image")), void_type_node, 0); | |
3822 | /* CAF's FAIL doesn't return. */ | |
3823 | TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1; | |
3824 | ||
3825 | gfor_fndecl_caf_failed_images | |
3826 | = gfc_build_library_function_decl_with_spec ( | |
3827 | get_identifier (PREFIX("caf_failed_images")), "WRR", | |
3828 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3829 | integer_type_node); | |
3830 | ||
f8862a1b DR |
3831 | gfor_fndecl_caf_form_team |
3832 | = gfc_build_library_function_decl_with_spec ( | |
3833 | get_identifier (PREFIX("caf_form_team")), "RWR", | |
3834 | void_type_node, 3, integer_type_node, ppvoid_type_node, | |
3835 | integer_type_node); | |
3836 | ||
3837 | gfor_fndecl_caf_change_team | |
3838 | = gfc_build_library_function_decl_with_spec ( | |
3839 | get_identifier (PREFIX("caf_change_team")), "RR", | |
3840 | void_type_node, 2, ppvoid_type_node, | |
3841 | integer_type_node); | |
3842 | ||
3843 | gfor_fndecl_caf_end_team | |
3844 | = gfc_build_library_function_decl ( | |
3845 | get_identifier (PREFIX("caf_end_team")), void_type_node, 0); | |
3846 | ||
3847 | gfor_fndecl_caf_get_team | |
3848 | = gfc_build_library_function_decl_with_spec ( | |
3849 | get_identifier (PREFIX("caf_get_team")), "R", | |
3850 | void_type_node, 1, integer_type_node); | |
3851 | ||
3852 | gfor_fndecl_caf_sync_team | |
3853 | = gfc_build_library_function_decl_with_spec ( | |
3854 | get_identifier (PREFIX("caf_sync_team")), "RR", | |
3855 | void_type_node, 2, ppvoid_type_node, | |
3856 | integer_type_node); | |
3857 | ||
3858 | gfor_fndecl_caf_team_number | |
3859 | = gfc_build_library_function_decl_with_spec ( | |
3860 | get_identifier (PREFIX("caf_team_number")), "R", | |
3861 | integer_type_node, 1, integer_type_node); | |
3862 | ||
ef78bc3c AV |
3863 | gfor_fndecl_caf_image_status |
3864 | = gfc_build_library_function_decl_with_spec ( | |
3865 | get_identifier (PREFIX("caf_image_status")), "RR", | |
3866 | integer_type_node, 2, integer_type_node, ppvoid_type_node); | |
3867 | ||
3868 | gfor_fndecl_caf_stopped_images | |
3869 | = gfc_build_library_function_decl_with_spec ( | |
3870 | get_identifier (PREFIX("caf_stopped_images")), "WRR", | |
3871 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3872 | integer_type_node); | |
3873 | ||
a16ee379 TB |
3874 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3875 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3876 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3877 | pint_type, pchar_type_node, size_type_node); |
a16ee379 | 3878 | |
d62cf3df | 3879 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
b5116268 TB |
3880 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3881 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3882 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
d62cf3df TB |
3883 | |
3884 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
b5116268 TB |
3885 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3886 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3887 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
d62cf3df | 3888 | |
229c5919 TB |
3889 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3890 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3891 | void_type_node, 8, pvoid_type_node, | |
4971dd80 | 3892 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
229c5919 TB |
3893 | NULL_TREE)), |
3894 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3f5fabc0 | 3895 | integer_type_node, size_type_node); |
229c5919 | 3896 | |
d62cf3df | 3897 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
b5116268 TB |
3898 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3899 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3900 | pint_type, pchar_type_node, size_type_node); |
ba85c8c3 AV |
3901 | |
3902 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3903 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3904 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3905 | pvoid_type_node); | |
60386f50 TB |
3906 | } |
3907 | ||
6de9cd9a DN |
3908 | gfc_build_intrinsic_function_decls (); |
3909 | gfc_build_intrinsic_lib_fndecls (); | |
3910 | gfc_build_io_library_fndecls (); | |
3911 | } | |
3912 | ||
3913 | ||
1f2959f0 | 3914 | /* Evaluate the length of dummy character variables. */ |
6de9cd9a | 3915 | |
0019d498 DK |
3916 | static void |
3917 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3918 | gfc_wrapped_block *block) | |
6de9cd9a | 3919 | { |
0019d498 | 3920 | stmtblock_t init; |
6de9cd9a | 3921 | |
faf28b3a | 3922 | gfc_finish_decl (cl->backend_decl); |
6de9cd9a | 3923 | |
0019d498 | 3924 | gfc_start_block (&init); |
6de9cd9a DN |
3925 | |
3926 | /* Evaluate the string length expression. */ | |
0019d498 | 3927 | gfc_conv_string_length (cl, NULL, &init); |
417ab240 | 3928 | |
0019d498 | 3929 | gfc_trans_vla_type_sizes (sym, &init); |
417ab240 | 3930 | |
0019d498 | 3931 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
6de9cd9a DN |
3932 | } |
3933 | ||
3934 | ||
3935 | /* Allocate and cleanup an automatic character variable. */ | |
3936 | ||
0019d498 DK |
3937 | static void |
3938 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
6de9cd9a | 3939 | { |
0019d498 | 3940 | stmtblock_t init; |
6de9cd9a | 3941 | tree decl; |
6de9cd9a DN |
3942 | tree tmp; |
3943 | ||
6e45f57b | 3944 | gcc_assert (sym->backend_decl); |
bc21d315 | 3945 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
6de9cd9a | 3946 | |
323cea66 | 3947 | gfc_init_block (&init); |
6de9cd9a DN |
3948 | |
3949 | /* Evaluate the string length expression. */ | |
0019d498 | 3950 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
6de9cd9a | 3951 | |
0019d498 | 3952 | gfc_trans_vla_type_sizes (sym, &init); |
417ab240 | 3953 | |
6de9cd9a DN |
3954 | decl = sym->backend_decl; |
3955 | ||
1a186ec5 | 3956 | /* Emit a DECL_EXPR for this variable, which will cause the |
4ab2db93 | 3957 | gimplifier to allocate storage, and all that good stuff. */ |
bc98ed60 | 3958 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
0019d498 | 3959 | gfc_add_expr_to_block (&init, tmp); |
1a186ec5 | 3960 | |
0019d498 | 3961 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
6de9cd9a DN |
3962 | } |
3963 | ||
910450c1 FW |
3964 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3965 | ||
0019d498 DK |
3966 | static void |
3967 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
910450c1 | 3968 | { |
0019d498 | 3969 | stmtblock_t init; |
910450c1 FW |
3970 | |
3971 | gcc_assert (sym->backend_decl); | |
0019d498 | 3972 | gfc_start_block (&init); |
910450c1 FW |
3973 | |
3974 | /* Set the initial value to length. See the comments in | |
3975 | function gfc_add_assign_aux_vars in this file. */ | |
0019d498 | 3976 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
df09d1d5 | 3977 | build_int_cst (gfc_charlen_type_node, -2)); |
910450c1 | 3978 | |
0019d498 | 3979 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
910450c1 FW |
3980 | } |
3981 | ||
417ab240 JJ |
3982 | static void |
3983 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3984 | { | |
3985 | tree t = *tp, var, val; | |
3986 | ||
3987 | if (t == NULL || t == error_mark_node) | |
3988 | return; | |
3989 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3990 | return; | |
3991 | ||
3992 | if (TREE_CODE (t) == SAVE_EXPR) | |
3993 | { | |
3994 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3995 | { | |
3996 | *tp = TREE_OPERAND (t, 0); | |
3997 | return; | |
3998 | } | |
3999 | val = TREE_OPERAND (t, 0); | |
4000 | } | |
4001 | else | |
4002 | val = t; | |
4003 | ||
4004 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
4005 | gfc_add_decl_to_function (var); | |
7a27d38f | 4006 | gfc_add_modify (body, var, unshare_expr (val)); |
417ab240 JJ |
4007 | if (TREE_CODE (t) == SAVE_EXPR) |
4008 | TREE_OPERAND (t, 0) = var; | |
4009 | *tp = var; | |
4010 | } | |
4011 | ||
4012 | static void | |
4013 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
4014 | { | |
4015 | tree t; | |
4016 | ||
4017 | if (type == NULL || type == error_mark_node) | |
4018 | return; | |
4019 | ||
4020 | type = TYPE_MAIN_VARIANT (type); | |
4021 | ||
4022 | if (TREE_CODE (type) == INTEGER_TYPE) | |
4023 | { | |
4024 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
4025 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
4026 | ||
4027 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
4028 | { | |
4029 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
4030 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
4031 | } | |
4032 | } | |
4033 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
4034 | { | |
4035 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
4036 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
4037 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
4038 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
4039 | ||
4040 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
4041 | { | |
4042 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
4043 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
4044 | } | |
4045 | } | |
4046 | } | |
4047 | ||
4048 | /* Make sure all type sizes and array domains are either constant, | |
4049 | or variable or parameter decls. This is a simplified variant | |
4050 | of gimplify_type_sizes, but we can't use it here, as none of the | |
4051 | variables in the expressions have been gimplified yet. | |
4052 | As type sizes and domains for various variable length arrays | |
4053 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
4054 | time, without this routine gimplify_type_sizes in the middle-end | |
4055 | could result in the type sizes being gimplified earlier than where | |
4056 | those variables are initialized. */ | |
4057 | ||
4058 | void | |
4059 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
4060 | { | |
4061 | tree type = TREE_TYPE (sym->backend_decl); | |
4062 | ||
4063 | if (TREE_CODE (type) == FUNCTION_TYPE | |
4064 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
4065 | { | |
4066 | if (! current_fake_result_decl) | |
4067 | return; | |
4068 | ||
4069 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
4070 | } | |
4071 | ||
4072 | while (POINTER_TYPE_P (type)) | |
4073 | type = TREE_TYPE (type); | |
4074 | ||
4075 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
4076 | { | |
4077 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
4078 | ||
4079 | while (POINTER_TYPE_P (etype)) | |
4080 | etype = TREE_TYPE (etype); | |
4081 | ||
4082 | gfc_trans_vla_type_sizes_1 (etype, body); | |
4083 | } | |
4084 | ||
4085 | gfc_trans_vla_type_sizes_1 (type, body); | |
4086 | } | |
4087 | ||
6de9cd9a | 4088 | |
b7b184a8 | 4089 | /* Initialize a derived type by building an lvalue from the symbol |
2b56d6a4 TB |
4090 | and using trans_assignment to do the work. Set dealloc to false |
4091 | if no deallocation prior the assignment is needed. */ | |
0019d498 DK |
4092 | void |
4093 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
d3837072 | 4094 | { |
b7b184a8 | 4095 | gfc_expr *e; |
d3837072 PT |
4096 | tree tmp; |
4097 | tree present; | |
4098 | ||
0019d498 DK |
4099 | gcc_assert (block); |
4100 | ||
276515e6 PT |
4101 | /* Initialization of PDTs is done elsewhere. */ |
4102 | if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
4103 | return; | |
4104 | ||
b7b184a8 PT |
4105 | gcc_assert (!sym->attr.allocatable); |
4106 | gfc_set_sym_referenced (sym); | |
4107 | e = gfc_lval_expr_from_sym (sym); | |
2b56d6a4 | 4108 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
ba6f7079 TB |
4109 | if (sym->attr.dummy && (sym->attr.optional |
4110 | || sym->ns->proc_name->attr.entry_master)) | |
d3837072 | 4111 | { |
b7b184a8 | 4112 | present = gfc_conv_expr_present (sym); |
5d44e5c8 TB |
4113 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
4114 | tmp, build_empty_stmt (input_location)); | |
d3837072 | 4115 | } |
0019d498 | 4116 | gfc_add_expr_to_block (block, tmp); |
b7b184a8 | 4117 | gfc_free_expr (e); |
d3837072 PT |
4118 | } |
4119 | ||
4120 | ||
2c69d527 PT |
4121 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
4122 | them their default initializer, if they do not have allocatable | |
1cc0e193 | 4123 | components, they have their allocatable components deallocated. */ |
2c69d527 | 4124 | |
0019d498 DK |
4125 | static void |
4126 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
b7b184a8 | 4127 | { |
0019d498 | 4128 | stmtblock_t init; |
b7b184a8 | 4129 | gfc_formal_arglist *f; |
2c69d527 | 4130 | tree tmp; |
8a272531 | 4131 | tree present; |
b7b184a8 | 4132 | |
0019d498 | 4133 | gfc_init_block (&init); |
4cbc9039 | 4134 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
b7b184a8 | 4135 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
758e12af TB |
4136 | && !f->sym->attr.pointer |
4137 | && f->sym->ts.type == BT_DERIVED) | |
2c69d527 | 4138 | { |
ed3f1ef2 TB |
4139 | tmp = NULL_TREE; |
4140 | ||
4141 | /* Note: Allocatables are excluded as they are already handled | |
4142 | by the caller. */ | |
4143 | if (!f->sym->attr.allocatable | |
4144 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
2c69d527 | 4145 | { |
ed3f1ef2 TB |
4146 | stmtblock_t block; |
4147 | gfc_expr *e; | |
4148 | ||
4149 | gfc_init_block (&block); | |
4150 | f->sym->attr.referenced = 1; | |
4151 | e = gfc_lval_expr_from_sym (f->sym); | |
4152 | gfc_add_finalizer_call (&block, e); | |
4153 | gfc_free_expr (e); | |
4154 | tmp = gfc_finish_block (&block); | |
4155 | } | |
8a272531 | 4156 | |
ed3f1ef2 TB |
4157 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4158 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4159 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4160 | f->sym->backend_decl, | |
4161 | f->sym->as ? f->sym->as->rank : 0); | |
8a272531 | 4162 | |
ed3f1ef2 TB |
4163 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4164 | || f->sym->ns->proc_name->attr.entry_master)) | |
4165 | { | |
4166 | present = gfc_conv_expr_present (f->sym); | |
4167 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4168 | present, tmp, build_empty_stmt (input_location)); | |
2c69d527 | 4169 | } |
ed3f1ef2 TB |
4170 | |
4171 | if (tmp != NULL_TREE) | |
4172 | gfc_add_expr_to_block (&init, tmp); | |
4173 | else if (f->sym->value && !f->sym->attr.allocatable) | |
0019d498 | 4174 | gfc_init_default_dt (f->sym, &init, true); |
2c69d527 | 4175 | } |
c7f17815 JW |
4176 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4177 | && f->sym->ts.type == BT_CLASS | |
4178 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
ed3f1ef2 | 4179 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c7f17815 | 4180 | { |
ed3f1ef2 TB |
4181 | stmtblock_t block; |
4182 | gfc_expr *e; | |
4183 | ||
4184 | gfc_init_block (&block); | |
4185 | f->sym->attr.referenced = 1; | |
4186 | e = gfc_lval_expr_from_sym (f->sym); | |
4187 | gfc_add_finalizer_call (&block, e); | |
4188 | gfc_free_expr (e); | |
4189 | tmp = gfc_finish_block (&block); | |
c7f17815 JW |
4190 | |
4191 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4192 | { | |
4193 | present = gfc_conv_expr_present (f->sym); | |
4194 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4195 | present, tmp, | |
4196 | build_empty_stmt (input_location)); | |
4197 | } | |
4198 | ||
4199 | gfc_add_expr_to_block (&init, tmp); | |
4200 | } | |
b7b184a8 | 4201 | |
0019d498 | 4202 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
b7b184a8 PT |
4203 | } |
4204 | ||
d3837072 | 4205 | |
ce1ff48e PT |
4206 | /* Helper function to manage deferred string lengths. */ |
4207 | ||
4208 | static tree | |
4209 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4210 | locus *loc) | |
4211 | { | |
4212 | tree tmp; | |
4213 | ||
4214 | /* Character length passed by reference. */ | |
4215 | tmp = sym->ts.u.cl->passed_length; | |
4216 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4217 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4218 | ||
4219 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4220 | /* Zero the string length when entering the scope. */ | |
4221 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4222 | build_int_cst (gfc_charlen_type_node, 0)); | |
4223 | else | |
4224 | { | |
4225 | tree tmp2; | |
4226 | ||
4227 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4228 | gfc_charlen_type_node, | |
4229 | sym->ts.u.cl->backend_decl, tmp); | |
4230 | if (sym->attr.optional) | |
4231 | { | |
4232 | tree present = gfc_conv_expr_present (sym); | |
4233 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4234 | void_type_node, present, tmp2, | |
4235 | build_empty_stmt (input_location)); | |
4236 | } | |
4237 | gfc_add_expr_to_block (init, tmp2); | |
4238 | } | |
4239 | ||
4240 | gfc_restore_backend_locus (loc); | |
4241 | ||
4242 | /* Pass the final character length back. */ | |
4243 | if (sym->attr.intent != INTENT_IN) | |
4244 | { | |
4245 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4246 | gfc_charlen_type_node, tmp, | |
4247 | sym->ts.u.cl->backend_decl); | |
4248 | if (sym->attr.optional) | |
4249 | { | |
4250 | tree present = gfc_conv_expr_present (sym); | |
4251 | tmp = build3_loc (input_location, COND_EXPR, | |
4252 | void_type_node, present, tmp, | |
4253 | build_empty_stmt (input_location)); | |
4254 | } | |
4255 | } | |
4256 | else | |
4257 | tmp = NULL_TREE; | |
4258 | ||
4259 | return tmp; | |
4260 | } | |
4261 | ||
a6b22eea PT |
4262 | |
4263 | /* Get the result expression for a procedure. */ | |
4264 | ||
4265 | static tree | |
4266 | get_proc_result (gfc_symbol* sym) | |
4267 | { | |
4268 | if (sym->attr.subroutine || sym == sym->result) | |
4269 | { | |
4270 | if (current_fake_result_decl != NULL) | |
4271 | return TREE_VALUE (current_fake_result_decl); | |
4272 | ||
4273 | return NULL_TREE; | |
4274 | } | |
4275 | ||
4276 | return sym->result->backend_decl; | |
4277 | } | |
4278 | ||
4279 | ||
6de9cd9a DN |
4280 | /* Generate function entry and exit code, and add it to the function body. |
4281 | This includes: | |
f8d0aee5 | 4282 | Allocation and initialization of array variables. |
6de9cd9a | 4283 | Allocation of character string variables. |
910450c1 | 4284 | Initialization and possibly repacking of dummy arrays. |
1517fd57 | 4285 | Initialization of ASSIGN statement auxiliary variable. |
571d54de | 4286 | Initialization of ASSOCIATE names. |
1517fd57 | 4287 | Automatic deallocation. */ |
6de9cd9a | 4288 | |
d74d8807 DK |
4289 | void |
4290 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
6de9cd9a DN |
4291 | { |
4292 | locus loc; | |
4293 | gfc_symbol *sym; | |
417ab240 | 4294 | gfc_formal_arglist *f; |
0019d498 | 4295 | stmtblock_t tmpblock; |
7114edca | 4296 | bool seen_trans_deferred_array = false; |
5bab4c96 | 4297 | bool is_pdt_type = false; |
8d51f26f PT |
4298 | tree tmp = NULL; |
4299 | gfc_expr *e; | |
4300 | gfc_se se; | |
4301 | stmtblock_t init; | |
6de9cd9a DN |
4302 | |
4303 | /* Deal with implicit return variables. Explicit return variables will | |
4304 | already have been added. */ | |
4305 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4306 | { | |
4307 | if (!current_fake_result_decl) | |
4308 | { | |
d198b59a JJ |
4309 | gfc_entry_list *el = NULL; |
4310 | if (proc_sym->attr.entry_master) | |
4311 | { | |
4312 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4313 | if (el->sym != el->sym->result) | |
4314 | break; | |
4315 | } | |
766d0c8c | 4316 | /* TODO: move to the appropriate place in resolve.c. */ |
134d2354 | 4317 | if (warn_return_type > 0 && el == NULL) |
48749dbc MLI |
4318 | gfc_warning (OPT_Wreturn_type, |
4319 | "Return value of function %qs at %L not set", | |
766d0c8c | 4320 | proc_sym->name, &proc_sym->declared_at); |
6de9cd9a | 4321 | } |
d198b59a | 4322 | else if (proc_sym->as) |
6de9cd9a | 4323 | { |
417ab240 | 4324 | tree result = TREE_VALUE (current_fake_result_decl); |
8e9218f2 AV |
4325 | gfc_save_backend_locus (&loc); |
4326 | gfc_set_backend_locus (&proc_sym->declared_at); | |
d74d8807 | 4327 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
f5f701ad PT |
4328 | |
4329 | /* An automatic character length, pointer array result. */ | |
4330 | if (proc_sym->ts.type == BT_CHARACTER | |
d168c883 | 4331 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
ce1ff48e PT |
4332 | { |
4333 | tmp = NULL; | |
4334 | if (proc_sym->ts.deferred) | |
4335 | { | |
ce1ff48e PT |
4336 | gfc_start_block (&init); |
4337 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4338 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4339 | } | |
4340 | else | |
4341 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4342 | } | |
6de9cd9a DN |
4343 | } |
4344 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4345 | { | |
8d51f26f PT |
4346 | if (proc_sym->ts.deferred) |
4347 | { | |
4348 | tmp = NULL; | |
ceccaacf TB |
4349 | gfc_save_backend_locus (&loc); |
4350 | gfc_set_backend_locus (&proc_sym->declared_at); | |
8d51f26f PT |
4351 | gfc_start_block (&init); |
4352 | /* Zero the string length on entry. */ | |
4353 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4354 | build_int_cst (gfc_charlen_type_node, 0)); | |
4355 | /* Null the pointer. */ | |
4356 | e = gfc_lval_expr_from_sym (proc_sym); | |
4357 | gfc_init_se (&se, NULL); | |
4358 | se.want_pointer = 1; | |
4359 | gfc_conv_expr (&se, e); | |
4360 | gfc_free_expr (e); | |
4361 | tmp = se.expr; | |
4362 | gfc_add_modify (&init, tmp, | |
4363 | fold_convert (TREE_TYPE (se.expr), | |
4364 | null_pointer_node)); | |
ceccaacf | 4365 | gfc_restore_backend_locus (&loc); |
8d51f26f PT |
4366 | |
4367 | /* Pass back the string length on exit. */ | |
afbc5ae8 | 4368 | tmp = proc_sym->ts.u.cl->backend_decl; |
ce1ff48e PT |
4369 | if (TREE_CODE (tmp) != INDIRECT_REF |
4370 | && proc_sym->ts.u.cl->passed_length) | |
afbc5ae8 | 4371 | { |
b62df3bf PT |
4372 | tmp = proc_sym->ts.u.cl->passed_length; |
4373 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
b62df3bf | 4374 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f622221a JB |
4375 | TREE_TYPE (tmp), tmp, |
4376 | fold_convert | |
4377 | (TREE_TYPE (tmp), | |
4378 | proc_sym->ts.u.cl->backend_decl)); | |
afbc5ae8 PT |
4379 | } |
4380 | else | |
4381 | tmp = NULL_TREE; | |
4382 | ||
8d51f26f PT |
4383 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4384 | } | |
d168c883 | 4385 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
d74d8807 | 4386 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
6de9cd9a DN |
4387 | } |
4388 | else | |
c61819ff | 4389 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
6de9cd9a | 4390 | } |
a6b22eea PT |
4391 | else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym)) |
4392 | { | |
4393 | /* Nullify explicit return class arrays on entry. */ | |
4394 | tree type; | |
4395 | tmp = get_proc_result (proc_sym); | |
4396 | if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp))) | |
4397 | { | |
4398 | gfc_start_block (&init); | |
4399 | tmp = gfc_class_data_get (tmp); | |
4400 | type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp)); | |
4401 | gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0)); | |
4402 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); | |
4403 | } | |
4404 | } | |
4405 | ||
6de9cd9a | 4406 | |
d3837072 PT |
4407 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4408 | should be done here so that the offsets and lbounds of arrays | |
4409 | are available. */ | |
ceccaacf TB |
4410 | gfc_save_backend_locus (&loc); |
4411 | gfc_set_backend_locus (&proc_sym->declared_at); | |
d74d8807 | 4412 | init_intent_out_dt (proc_sym, block); |
ceccaacf | 4413 | gfc_restore_backend_locus (&loc); |
d3837072 | 4414 | |
6de9cd9a DN |
4415 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4416 | { | |
ea8b72e6 TB |
4417 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4418 | && (sym->ts.u.derived->attr.alloc_comp | |
4419 | || gfc_is_finalizable (sym->ts.u.derived, | |
4420 | NULL)); | |
571d54de | 4421 | if (sym->assoc) |
6312ef45 JW |
4422 | continue; |
4423 | ||
5bab4c96 PT |
4424 | if (sym->ts.type == BT_DERIVED |
4425 | && sym->ts.u.derived | |
4426 | && sym->ts.u.derived->attr.pdt_type) | |
4427 | { | |
4428 | is_pdt_type = true; | |
4429 | gfc_init_block (&tmpblock); | |
4430 | if (!(sym->attr.dummy | |
4431 | || sym->attr.pointer | |
4432 | || sym->attr.allocatable)) | |
4433 | { | |
4434 | tmp = gfc_allocate_pdt_comp (sym->ts.u.derived, | |
4435 | sym->backend_decl, | |
4436 | sym->as ? sym->as->rank : 0, | |
4437 | sym->param_list); | |
4438 | gfc_add_expr_to_block (&tmpblock, tmp); | |
96acdb8d PT |
4439 | if (!sym->attr.result) |
4440 | tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived, | |
4441 | sym->backend_decl, | |
4442 | sym->as ? sym->as->rank : 0); | |
4443 | else | |
4444 | tmp = NULL_TREE; | |
5bab4c96 PT |
4445 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4446 | } | |
4447 | else if (sym->attr.dummy) | |
4448 | { | |
4449 | tmp = gfc_check_pdt_dummy (sym->ts.u.derived, | |
4450 | sym->backend_decl, | |
4451 | sym->as ? sym->as->rank : 0, | |
4452 | sym->param_list); | |
4453 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4454 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4455 | } | |
4456 | } | |
4457 | else if (sym->ts.type == BT_CLASS | |
4458 | && CLASS_DATA (sym)->ts.u.derived | |
4459 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type) | |
4460 | { | |
4461 | gfc_component *data = CLASS_DATA (sym); | |
4462 | is_pdt_type = true; | |
4463 | gfc_init_block (&tmpblock); | |
4464 | if (!(sym->attr.dummy | |
4465 | || CLASS_DATA (sym)->attr.pointer | |
4466 | || CLASS_DATA (sym)->attr.allocatable)) | |
4467 | { | |
4468 | tmp = gfc_class_data_get (sym->backend_decl); | |
4469 | tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp, | |
4470 | data->as ? data->as->rank : 0, | |
4471 | sym->param_list); | |
4472 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4473 | tmp = gfc_class_data_get (sym->backend_decl); | |
96acdb8d PT |
4474 | if (!sym->attr.result) |
4475 | tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp, | |
4476 | data->as ? data->as->rank : 0); | |
4477 | else | |
4478 | tmp = NULL_TREE; | |
5bab4c96 PT |
4479 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4480 | } | |
4481 | else if (sym->attr.dummy) | |
4482 | { | |
4483 | tmp = gfc_class_data_get (sym->backend_decl); | |
4484 | tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp, | |
4485 | data->as ? data->as->rank : 0, | |
4486 | sym->param_list); | |
4487 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4488 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4489 | } | |
4490 | } | |
4491 | ||
ff3598bc | 4492 | if (sym->attr.pointer && sym->attr.dimension |
22d07ec2 | 4493 | && sym->attr.save == SAVE_NONE |
ff3598bc PT |
4494 | && !sym->attr.use_assoc |
4495 | && !sym->attr.host_assoc | |
4496 | && !sym->attr.dummy | |
4497 | && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))) | |
0c1e1df8 JJ |
4498 | { |
4499 | gfc_init_block (&tmpblock); | |
ff3598bc PT |
4500 | gfc_conv_descriptor_span_set (&tmpblock, sym->backend_decl, |
4501 | build_int_cst (gfc_array_index_type, 0)); | |
0c1e1df8 JJ |
4502 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
4503 | NULL_TREE); | |
4504 | } | |
4505 | ||
e1e3b9d3 | 4506 | if (sym->ts.type == BT_CLASS |
203c7ebf | 4507 | && (sym->attr.save || flag_max_stack_var_size == 0) |
f118468a TB |
4508 | && CLASS_DATA (sym)->attr.allocatable) |
4509 | { | |
4510 | tree vptr; | |
4511 | ||
4512 | if (UNLIMITED_POLY (sym)) | |
4513 | vptr = null_pointer_node; | |
4514 | else | |
4515 | { | |
4516 | gfc_symbol *vsym; | |
4517 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4518 | vptr = gfc_get_symbol_decl (vsym); | |
4519 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4520 | } | |
4521 | ||
4522 | if (CLASS_DATA (sym)->attr.dimension | |
4523 | || (CLASS_DATA (sym)->attr.codimension | |
f19626cf | 4524 | && flag_coarray != GFC_FCOARRAY_LIB)) |
f118468a TB |
4525 | { |
4526 | tmp = gfc_class_data_get (sym->backend_decl); | |
4527 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4528 | } | |
4529 | else | |
4530 | tmp = null_pointer_node; | |
4531 | ||
4532 | DECL_INITIAL (sym->backend_decl) | |
4533 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4534 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4535 | } | |
ce1ff48e PT |
4536 | else if ((sym->attr.dimension || sym->attr.codimension |
4537 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
6de9cd9a | 4538 | { |
f3b0bb7a AV |
4539 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4540 | symbol_attribute *array_attr; | |
4541 | gfc_array_spec *as; | |
ce1ff48e | 4542 | array_type type_of_array; |
f3b0bb7a AV |
4543 | |
4544 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4545 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4546 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
ce1ff48e PT |
4547 | type_of_array = as->type; |
4548 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4549 | type_of_array = AS_EXPLICIT; | |
4550 | switch (type_of_array) | |
6de9cd9a DN |
4551 | { |
4552 | case AS_EXPLICIT: | |
4553 | if (sym->attr.dummy || sym->attr.result) | |
d74d8807 | 4554 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
f3b0bb7a AV |
4555 | /* Allocatable and pointer arrays need to processed |
4556 | explicitly. */ | |
4557 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4558 | || (sym->ts.type == BT_CLASS | |
4559 | && CLASS_DATA (sym)->attr.class_pointer) | |
4560 | || array_attr->allocatable) | |
6de9cd9a DN |
4561 | { |
4562 | if (TREE_STATIC (sym->backend_decl)) | |
ceccaacf TB |
4563 | { |
4564 | gfc_save_backend_locus (&loc); | |
4565 | gfc_set_backend_locus (&sym->declared_at); | |
4566 | gfc_trans_static_array_pointer (sym); | |
4567 | gfc_restore_backend_locus (&loc); | |
4568 | } | |
6de9cd9a | 4569 | else |
7114edca PT |
4570 | { |
4571 | seen_trans_deferred_array = true; | |
d74d8807 | 4572 | gfc_trans_deferred_array (sym, block); |
7114edca | 4573 | } |
6de9cd9a | 4574 | } |
f3b0bb7a AV |
4575 | else if (sym->attr.codimension |
4576 | && TREE_STATIC (sym->backend_decl)) | |
9f3761c5 TB |
4577 | { |
4578 | gfc_init_block (&tmpblock); | |
4579 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4580 | &tmpblock, sym); | |
4581 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4582 | NULL_TREE); | |
4583 | continue; | |
4584 | } | |
b0936265 | 4585 | else |
6de9cd9a | 4586 | { |
ceccaacf TB |
4587 | gfc_save_backend_locus (&loc); |
4588 | gfc_set_backend_locus (&sym->declared_at); | |
4589 | ||
ea8b72e6 | 4590 | if (alloc_comp_or_fini) |
7114edca PT |
4591 | { |
4592 | seen_trans_deferred_array = true; | |
d74d8807 | 4593 | gfc_trans_deferred_array (sym, block); |
7114edca | 4594 | } |
b7b184a8 PT |
4595 | else if (sym->ts.type == BT_DERIVED |
4596 | && sym->value | |
4597 | && !sym->attr.data | |
4598 | && sym->attr.save == SAVE_NONE) | |
0019d498 DK |
4599 | { |
4600 | gfc_start_block (&tmpblock); | |
4601 | gfc_init_default_dt (sym, &tmpblock, false); | |
d74d8807 | 4602 | gfc_add_init_cleanup (block, |
0019d498 DK |
4603 | gfc_finish_block (&tmpblock), |
4604 | NULL_TREE); | |
4605 | } | |
7114edca | 4606 | |
0019d498 | 4607 | gfc_trans_auto_array_allocation (sym->backend_decl, |
d74d8807 | 4608 | sym, block); |
363aab21 | 4609 | gfc_restore_backend_locus (&loc); |
6de9cd9a DN |
4610 | } |
4611 | break; | |
4612 | ||
4613 | case AS_ASSUMED_SIZE: | |
4614 | /* Must be a dummy parameter. */ | |
f3b0bb7a | 4615 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
6de9cd9a DN |
4616 | |
4617 | /* We should always pass assumed size arrays the g77 way. */ | |
b3aefde2 | 4618 | if (sym->attr.dummy) |
d74d8807 | 4619 | gfc_trans_g77_array (sym, block); |
0019d498 | 4620 | break; |
6de9cd9a DN |
4621 | |
4622 | case AS_ASSUMED_SHAPE: | |
4623 | /* Must be a dummy parameter. */ | |
6e45f57b | 4624 | gcc_assert (sym->attr.dummy); |
6de9cd9a | 4625 | |
d74d8807 | 4626 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
6de9cd9a DN |
4627 | break; |
4628 | ||
c62c6622 | 4629 | case AS_ASSUMED_RANK: |
6de9cd9a | 4630 | case AS_DEFERRED: |
7114edca | 4631 | seen_trans_deferred_array = true; |
d74d8807 | 4632 | gfc_trans_deferred_array (sym, block); |
ce1ff48e PT |
4633 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4634 | && sym->attr.result) | |
4635 | { | |
4636 | gfc_start_block (&init); | |
4637 | gfc_save_backend_locus (&loc); | |
4638 | gfc_set_backend_locus (&sym->declared_at); | |
4639 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4640 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4641 | } | |
6de9cd9a DN |
4642 | break; |
4643 | ||
4644 | default: | |
6e45f57b | 4645 | gcc_unreachable (); |
6de9cd9a | 4646 | } |
ea8b72e6 | 4647 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
d74d8807 | 4648 | gfc_trans_deferred_array (sym, block); |
6de9cd9a | 4649 | } |
c49ea23d PT |
4650 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4651 | && (sym->ts.type == BT_CLASS | |
102344e2 | 4652 | && CLASS_DATA (sym)->attr.class_pointer)) |
1b26c26b | 4653 | continue; |
8d51f26f | 4654 | else if ((!sym->attr.dummy || sym->ts.deferred) |
25cbe58f | 4655 | && (sym->attr.allocatable |
ce1ff48e | 4656 | || (sym->attr.pointer && sym->attr.result) |
25cbe58f TB |
4657 | || (sym->ts.type == BT_CLASS |
4658 | && CLASS_DATA (sym)->attr.allocatable))) | |
1517fd57 | 4659 | { |
203c7ebf | 4660 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
64b33a7e | 4661 | { |
5d81ddd0 TB |
4662 | tree descriptor = NULL_TREE; |
4663 | ||
ceccaacf TB |
4664 | gfc_save_backend_locus (&loc); |
4665 | gfc_set_backend_locus (&sym->declared_at); | |
0019d498 | 4666 | gfc_start_block (&init); |
8d51f26f | 4667 | |
ce1ff48e | 4668 | if (!sym->attr.pointer) |
8d51f26f | 4669 | { |
ce1ff48e PT |
4670 | /* Nullify and automatic deallocation of allocatable |
4671 | scalars. */ | |
4672 | e = gfc_lval_expr_from_sym (sym); | |
4673 | if (sym->ts.type == BT_CLASS) | |
4674 | gfc_add_data_component (e); | |
4675 | ||
4676 | gfc_init_se (&se, NULL); | |
4677 | if (sym->ts.type != BT_CLASS | |
4678 | || sym->ts.u.derived->attr.dimension | |
4679 | || sym->ts.u.derived->attr.codimension) | |
48f316ea | 4680 | { |
ce1ff48e PT |
4681 | se.want_pointer = 1; |
4682 | gfc_conv_expr (&se, e); | |
4683 | } | |
4684 | else if (sym->ts.type == BT_CLASS | |
4685 | && !CLASS_DATA (sym)->attr.dimension | |
4686 | && !CLASS_DATA (sym)->attr.codimension) | |
4687 | { | |
4688 | se.want_pointer = 1; | |
4689 | gfc_conv_expr (&se, e); | |
48f316ea | 4690 | } |
8d51f26f | 4691 | else |
48f316ea | 4692 | { |
ce1ff48e PT |
4693 | se.descriptor_only = 1; |
4694 | gfc_conv_expr (&se, e); | |
4695 | descriptor = se.expr; | |
4696 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4697 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
48f316ea | 4698 | } |
ce1ff48e | 4699 | gfc_free_expr (e); |
8d51f26f | 4700 | |
ce1ff48e | 4701 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
48f316ea | 4702 | { |
ce1ff48e | 4703 | /* Nullify when entering the scope. */ |
48f316ea | 4704 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
ce1ff48e PT |
4705 | TREE_TYPE (se.expr), se.expr, |
4706 | fold_convert (TREE_TYPE (se.expr), | |
4707 | null_pointer_node)); | |
48f316ea TB |
4708 | if (sym->attr.optional) |
4709 | { | |
4710 | tree present = gfc_conv_expr_present (sym); | |
4711 | tmp = build3_loc (input_location, COND_EXPR, | |
4712 | void_type_node, present, tmp, | |
4713 | build_empty_stmt (input_location)); | |
4714 | } | |
ce1ff48e | 4715 | gfc_add_expr_to_block (&init, tmp); |
48f316ea | 4716 | } |
8d51f26f | 4717 | } |
ce1ff48e PT |
4718 | |
4719 | if ((sym->attr.dummy || sym->attr.result) | |
4720 | && sym->ts.type == BT_CHARACTER | |
4721 | && sym->ts.deferred | |
4722 | && sym->ts.u.cl->passed_length) | |
4723 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
ceccaacf | 4724 | else |
77dacf9d PT |
4725 | { |
4726 | gfc_restore_backend_locus (&loc); | |
4727 | tmp = NULL_TREE; | |
4728 | } | |
64b33a7e TB |
4729 | |
4730 | /* Deallocate when leaving the scope. Nullifying is not | |
4731 | needed. */ | |
ce1ff48e | 4732 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
ef292537 | 4733 | && !sym->ns->proc_name->attr.is_main_program) |
5d81ddd0 TB |
4734 | { |
4735 | if (sym->ts.type == BT_CLASS | |
4736 | && CLASS_DATA (sym)->attr.codimension) | |
4737 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4738 | NULL_TREE, NULL_TREE, | |
4739 | NULL_TREE, true, NULL, | |
ba85c8c3 | 4740 | GFC_CAF_COARRAY_ANALYZE); |
5d81ddd0 | 4741 | else |
76c1a7ec TB |
4742 | { |
4743 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
ba85c8c3 AV |
4744 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4745 | NULL_TREE, | |
4746 | NULL_TREE, | |
4747 | true, expr, | |
4748 | sym->ts); | |
76c1a7ec TB |
4749 | gfc_free_expr (expr); |
4750 | } | |
5d81ddd0 | 4751 | } |
ce1ff48e | 4752 | |
8c077737 JW |
4753 | if (sym->ts.type == BT_CLASS) |
4754 | { | |
4755 | /* Initialize _vptr to declared type. */ | |
8b704316 | 4756 | gfc_symbol *vtab; |
8c077737 | 4757 | tree rhs; |
ceccaacf TB |
4758 | |
4759 | gfc_save_backend_locus (&loc); | |
4760 | gfc_set_backend_locus (&sym->declared_at); | |
8c077737 JW |
4761 | e = gfc_lval_expr_from_sym (sym); |
4762 | gfc_add_vptr_component (e); | |
4763 | gfc_init_se (&se, NULL); | |
4764 | se.want_pointer = 1; | |
4765 | gfc_conv_expr (&se, e); | |
4766 | gfc_free_expr (e); | |
8b704316 PT |
4767 | if (UNLIMITED_POLY (sym)) |
4768 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4769 | else | |
4770 | { | |
4771 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4772 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4773 | gfc_get_symbol_decl (vtab)); | |
4774 | } | |
8c077737 | 4775 | gfc_add_modify (&init, se.expr, rhs); |
ceccaacf | 4776 | gfc_restore_backend_locus (&loc); |
8c077737 JW |
4777 | } |
4778 | ||
d74d8807 | 4779 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
64b33a7e | 4780 | } |
1517fd57 | 4781 | } |
8d51f26f PT |
4782 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4783 | { | |
4784 | tree tmp = NULL; | |
4785 | stmtblock_t init; | |
4786 | ||
4787 | /* If we get to here, all that should be left are pointers. */ | |
4788 | gcc_assert (sym->attr.pointer); | |
4789 | ||
4790 | if (sym->attr.dummy) | |
4791 | { | |
4792 | gfc_start_block (&init); | |
ce1ff48e PT |
4793 | gfc_save_backend_locus (&loc); |
4794 | gfc_set_backend_locus (&sym->declared_at); | |
4795 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
8d51f26f PT |
4796 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4797 | } | |
4798 | } | |
e69afb29 SK |
4799 | else if (sym->ts.deferred) |
4800 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
ea8b72e6 | 4801 | else if (alloc_comp_or_fini) |
d74d8807 | 4802 | gfc_trans_deferred_array (sym, block); |
6de9cd9a DN |
4803 | else if (sym->ts.type == BT_CHARACTER) |
4804 | { | |
363aab21 | 4805 | gfc_save_backend_locus (&loc); |
6de9cd9a DN |
4806 | gfc_set_backend_locus (&sym->declared_at); |
4807 | if (sym->attr.dummy || sym->attr.result) | |
d74d8807 | 4808 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
6de9cd9a | 4809 | else |
d74d8807 | 4810 | gfc_trans_auto_character_variable (sym, block); |
363aab21 | 4811 | gfc_restore_backend_locus (&loc); |
6de9cd9a | 4812 | } |
910450c1 FW |
4813 | else if (sym->attr.assign) |
4814 | { | |
363aab21 | 4815 | gfc_save_backend_locus (&loc); |
910450c1 | 4816 | gfc_set_backend_locus (&sym->declared_at); |
d74d8807 | 4817 | gfc_trans_assign_aux_var (sym, block); |
363aab21 | 4818 | gfc_restore_backend_locus (&loc); |
910450c1 | 4819 | } |
b7b184a8 PT |
4820 | else if (sym->ts.type == BT_DERIVED |
4821 | && sym->value | |
4822 | && !sym->attr.data | |
4823 | && sym->attr.save == SAVE_NONE) | |
0019d498 DK |
4824 | { |
4825 | gfc_start_block (&tmpblock); | |
4826 | gfc_init_default_dt (sym, &tmpblock, false); | |
d74d8807 | 4827 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
0019d498 DK |
4828 | NULL_TREE); |
4829 | } | |
5bab4c96 | 4830 | else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type) |
6e45f57b | 4831 | gcc_unreachable (); |
6de9cd9a DN |
4832 | } |
4833 | ||
0019d498 | 4834 | gfc_init_block (&tmpblock); |
417ab240 | 4835 | |
4cbc9039 | 4836 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
08113c73 PT |
4837 | { |
4838 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4839 | { | |
bc21d315 JW |
4840 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4841 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
0019d498 | 4842 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
08113c73 | 4843 | } |
08113c73 | 4844 | } |
417ab240 JJ |
4845 | |
4846 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4847 | && current_fake_result_decl != NULL) | |
4848 | { | |
bc21d315 JW |
4849 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4850 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
0019d498 | 4851 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
417ab240 JJ |
4852 | } |
4853 | ||
d74d8807 | 4854 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
6de9cd9a DN |
4855 | } |
4856 | ||
ce1ff48e | 4857 | |
ca752f39 | 4858 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
a64f5186 | 4859 | { |
2a22f99c | 4860 | typedef const char *compare_type; |
a64f5186 | 4861 | |
2a22f99c TS |
4862 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4863 | static bool | |
4864 | equal (module_htab_entry *a, const char *b) | |
4865 | { | |
4866 | return !strcmp (a->name, b); | |
4867 | } | |
4868 | }; | |
4869 | ||
4870 | static GTY (()) hash_table<module_hasher> *module_htab; | |
a64f5186 JJ |
4871 | |
4872 | /* Hash and equality functions for module_htab's decls. */ | |
4873 | ||
2a22f99c TS |
4874 | hashval_t |
4875 | module_decl_hasher::hash (tree t) | |
a64f5186 | 4876 | { |
a64f5186 JJ |
4877 | const_tree n = DECL_NAME (t); |
4878 | if (n == NULL_TREE) | |
4879 | n = TYPE_NAME (TREE_TYPE (t)); | |
afdda4b4 | 4880 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
a64f5186 JJ |
4881 | } |
4882 | ||
2a22f99c TS |
4883 | bool |
4884 | module_decl_hasher::equal (tree t1, const char *x2) | |
a64f5186 | 4885 | { |
a64f5186 JJ |
4886 | const_tree n1 = DECL_NAME (t1); |
4887 | if (n1 == NULL_TREE) | |
4888 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2a22f99c | 4889 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
a64f5186 JJ |
4890 | } |
4891 | ||
4892 | struct module_htab_entry * | |
4893 | gfc_find_module (const char *name) | |
4894 | { | |
a64f5186 | 4895 | if (! module_htab) |
2a22f99c | 4896 | module_htab = hash_table<module_hasher>::create_ggc (10); |
a64f5186 | 4897 | |
2a22f99c TS |
4898 | module_htab_entry **slot |
4899 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
a64f5186 JJ |
4900 | if (*slot == NULL) |
4901 | { | |
766090c2 | 4902 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
a64f5186 | 4903 | |
51f03c6b | 4904 | entry->name = gfc_get_string ("%s", name); |
2a22f99c TS |
4905 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4906 | *slot = entry; | |
a64f5186 | 4907 | } |
2a22f99c | 4908 | return *slot; |
a64f5186 JJ |
4909 | } |
4910 | ||
4911 | void | |
4912 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4913 | { | |
a64f5186 JJ |
4914 | const char *name; |
4915 | ||
4916 | if (DECL_NAME (decl)) | |
4917 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4918 | else | |
4919 | { | |
4920 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4921 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4922 | } | |
2a22f99c TS |
4923 | tree *slot |
4924 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4925 | INSERT); | |
a64f5186 | 4926 | if (*slot == NULL) |
2a22f99c | 4927 | *slot = decl; |
a64f5186 JJ |
4928 | } |
4929 | ||
5f673c6a TB |
4930 | |
4931 | /* Generate debugging symbols for namelists. This function must come after | |
4932 | generate_local_decl to ensure that the variables in the namelist are | |
4933 | already declared. */ | |
4934 | ||
4935 | static tree | |
4936 | generate_namelist_decl (gfc_symbol * sym) | |
4937 | { | |
4938 | gfc_namelist *nml; | |
4939 | tree decl; | |
4940 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4941 | ||
4942 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4943 | for (nml = sym->namelist; nml; nml = nml->next) | |
4944 | { | |
4945 | if (nml->sym->backend_decl == NULL_TREE) | |
4946 | { | |
4947 | nml->sym->attr.referenced = 1; | |
4948 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4949 | } | |
96d91784 | 4950 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
5f673c6a TB |
4951 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4952 | } | |
4953 | ||
4954 | decl = make_node (NAMELIST_DECL); | |
4955 | TREE_TYPE (decl) = void_type_node; | |
4956 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4957 | DECL_NAME (decl) = get_identifier (sym->name); | |
4958 | return decl; | |
4959 | } | |
4960 | ||
4961 | ||
6de9cd9a DN |
4962 | /* Output an initialized decl for a module variable. */ |
4963 | ||
4964 | static void | |
4965 | gfc_create_module_variable (gfc_symbol * sym) | |
4966 | { | |
4967 | tree decl; | |
6de9cd9a | 4968 | |
1a492601 PT |
4969 | /* Module functions with alternate entries are dealt with later and |
4970 | would get caught by the next condition. */ | |
4971 | if (sym->attr.entry) | |
4972 | return; | |
4973 | ||
a8b3b0b6 CR |
4974 | /* Make sure we convert the types of the derived types from iso_c_binding |
4975 | into (void *). */ | |
4976 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4977 | && sym->ts.type == BT_DERIVED) | |
4978 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4979 | ||
f6288c24 | 4980 | if (gfc_fl_struct (sym->attr.flavor) |
a64f5186 JJ |
4981 | && sym->backend_decl |
4982 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4983 | { | |
4984 | decl = sym->backend_decl; | |
4985 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
b8849663 | 4986 | |
cded7919 | 4987 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
b8849663 PT |
4988 | { |
4989 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4990 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4991 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4992 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4993 | == sym->ns->proc_name->backend_decl); | |
4994 | } | |
a64f5186 JJ |
4995 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4996 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4997 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4998 | } | |
4999 | ||
6e0d2de7 JW |
5000 | /* Only output variables, procedure pointers and array valued, |
5001 | or derived type, parameters. */ | |
6de9cd9a | 5002 | if (sym->attr.flavor != FL_VARIABLE |
fdc55763 | 5003 | && !(sym->attr.flavor == FL_PARAMETER |
6e0d2de7 JW |
5004 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
5005 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
6de9cd9a DN |
5006 | return; |
5007 | ||
a64f5186 JJ |
5008 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
5009 | { | |
5010 | decl = sym->backend_decl; | |
e5b16755 | 5011 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
a64f5186 JJ |
5012 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
5013 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5014 | gfc_module_add_decl (cur_module, decl); | |
5015 | } | |
5016 | ||
9cbf8b41 | 5017 | /* Don't generate variables from other modules. Variables from |
f84c6bd9 | 5018 | COMMONs and Cray pointees will already have been generated. */ |
cded7919 PT |
5019 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
5020 | || sym->attr.in_common || sym->attr.cray_pointee) | |
6de9cd9a DN |
5021 | return; |
5022 | ||
30aabb86 | 5023 | /* Equivalenced variables arrive here after creation. */ |
b95605fb | 5024 | if (sym->backend_decl |
a64f5186 JJ |
5025 | && (sym->equiv_built || sym->attr.in_equivalence)) |
5026 | return; | |
30aabb86 | 5027 | |
80f95228 | 5028 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
17d5d49f TB |
5029 | gfc_internal_error ("backend decl for module variable %qs already exists", |
5030 | sym->name); | |
6de9cd9a | 5031 | |
38945cfe TK |
5032 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
5033 | && (sym->attr.access == ACCESS_UNKNOWN | |
5034 | && (sym->ns->default_access == ACCESS_PRIVATE | |
5035 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
c61819ff | 5036 | && flag_module_private)))) |
38945cfe TK |
5037 | sym->attr.access = ACCESS_PRIVATE; |
5038 | ||
5039 | if (warn_unused_variable && !sym->attr.referenced | |
5040 | && sym->attr.access == ACCESS_PRIVATE) | |
48749dbc MLI |
5041 | gfc_warning (OPT_Wunused_value, |
5042 | "Unused PRIVATE module variable %qs declared at %L", | |
38945cfe TK |
5043 | sym->name, &sym->declared_at); |
5044 | ||
6de9cd9a DN |
5045 | /* We always want module variables to be created. */ |
5046 | sym->attr.referenced = 1; | |
5047 | /* Create the decl. */ | |
5048 | decl = gfc_get_symbol_decl (sym); | |
5049 | ||
6de9cd9a DN |
5050 | /* Create the variable. */ |
5051 | pushdecl (decl); | |
345bd7eb PT |
5052 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
5053 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
5054 | && sym->fn_result_spec)); | |
a64f5186 | 5055 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
0e6df31e | 5056 | rest_of_decl_compilation (decl, 1, 0); |
a64f5186 | 5057 | gfc_module_add_decl (cur_module, decl); |
6de9cd9a DN |
5058 | |
5059 | /* Also add length of strings. */ | |
5060 | if (sym->ts.type == BT_CHARACTER) | |
5061 | { | |
5062 | tree length; | |
5063 | ||
bc21d315 | 5064 | length = sym->ts.u.cl->backend_decl; |
9c4174d8 PT |
5065 | gcc_assert (length || sym->attr.proc_pointer); |
5066 | if (length && !INTEGER_CST_P (length)) | |
6de9cd9a DN |
5067 | { |
5068 | pushdecl (length); | |
0e6df31e | 5069 | rest_of_decl_compilation (length, 1, 0); |
6de9cd9a DN |
5070 | } |
5071 | } | |
b8ff4e88 TB |
5072 | |
5073 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
5074 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5075 | has_coarray_vars = true; | |
6de9cd9a DN |
5076 | } |
5077 | ||
9268ba9a | 5078 | /* Emit debug information for USE statements. */ |
a64f5186 JJ |
5079 | |
5080 | static void | |
5081 | gfc_trans_use_stmts (gfc_namespace * ns) | |
5082 | { | |
5083 | gfc_use_list *use_stmt; | |
5084 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
5085 | { | |
5086 | struct module_htab_entry *entry | |
5087 | = gfc_find_module (use_stmt->module_name); | |
5088 | gfc_use_rename *rent; | |
5089 | ||
5090 | if (entry->namespace_decl == NULL) | |
5091 | { | |
5092 | entry->namespace_decl | |
c2255bc4 AH |
5093 | = build_decl (input_location, |
5094 | NAMESPACE_DECL, | |
a64f5186 JJ |
5095 | get_identifier (use_stmt->module_name), |
5096 | void_type_node); | |
5097 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
5098 | } | |
9268ba9a | 5099 | gfc_set_backend_locus (&use_stmt->where); |
a64f5186 JJ |
5100 | if (!use_stmt->only_flag) |
5101 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
5102 | NULL_TREE, | |
5103 | ns->proc_name->backend_decl, | |
e071b767 | 5104 | false, false); |
a64f5186 JJ |
5105 | for (rent = use_stmt->rename; rent; rent = rent->next) |
5106 | { | |
5107 | tree decl, local_name; | |
a64f5186 JJ |
5108 | |
5109 | if (rent->op != INTRINSIC_NONE) | |
5110 | continue; | |
5111 | ||
2a22f99c TS |
5112 | hashval_t hash = htab_hash_string (rent->use_name); |
5113 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
5114 | INSERT); | |
a64f5186 JJ |
5115 | if (*slot == NULL) |
5116 | { | |
5117 | gfc_symtree *st; | |
5118 | ||
5119 | st = gfc_find_symtree (ns->sym_root, | |
5120 | rent->local_name[0] | |
5121 | ? rent->local_name : rent->use_name); | |
c3f34952 TB |
5122 | |
5123 | /* The following can happen if a derived type is renamed. */ | |
5124 | if (!st) | |
5125 | { | |
5126 | char *name; | |
5127 | name = xstrdup (rent->local_name[0] | |
5128 | ? rent->local_name : rent->use_name); | |
5129 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
5130 | st = gfc_find_symtree (ns->sym_root, name); | |
5131 | free (name); | |
5132 | gcc_assert (st); | |
5133 | } | |
1151ccc9 PT |
5134 | |
5135 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
5136 | local symbol (see PR41062). */ | |
5137 | if (!st->n.sym->attr.use_assoc) | |
5138 | continue; | |
5139 | ||
9268ba9a JJ |
5140 | if (st->n.sym->backend_decl |
5141 | && DECL_P (st->n.sym->backend_decl) | |
5142 | && st->n.sym->module | |
5143 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
a64f5186 | 5144 | { |
9268ba9a | 5145 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
d168c883 | 5146 | || !VAR_P (st->n.sym->backend_decl)); |
a64f5186 JJ |
5147 | decl = copy_node (st->n.sym->backend_decl); |
5148 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5149 | DECL_EXTERNAL (decl) = 1; | |
5150 | DECL_IGNORED_P (decl) = 0; | |
5151 | DECL_INITIAL (decl) = NULL_TREE; | |
5152 | } | |
5f673c6a TB |
5153 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
5154 | && st->n.sym->attr.use_only | |
5155 | && st->n.sym->module | |
5156 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
5157 | == 0) | |
5158 | { | |
5159 | decl = generate_namelist_decl (st->n.sym); | |
5160 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5161 | DECL_EXTERNAL (decl) = 1; | |
5162 | DECL_IGNORED_P (decl) = 0; | |
5163 | DECL_INITIAL (decl) = NULL_TREE; | |
5164 | } | |
a64f5186 JJ |
5165 | else |
5166 | { | |
5167 | *slot = error_mark_node; | |
2a22f99c | 5168 | entry->decls->clear_slot (slot); |
a64f5186 JJ |
5169 | continue; |
5170 | } | |
5171 | *slot = decl; | |
5172 | } | |
5173 | decl = (tree) *slot; | |
5174 | if (rent->local_name[0]) | |
5175 | local_name = get_identifier (rent->local_name); | |
5176 | else | |
5177 | local_name = NULL_TREE; | |
9268ba9a | 5178 | gfc_set_backend_locus (&rent->where); |
a64f5186 JJ |
5179 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
5180 | ns->proc_name->backend_decl, | |
e071b767 JJ |
5181 | !use_stmt->only_flag, |
5182 | false); | |
a64f5186 JJ |
5183 | } |
5184 | } | |
6de9cd9a DN |
5185 | } |
5186 | ||
9268ba9a | 5187 | |
bd11e37d JJ |
5188 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
5189 | will handle. */ | |
5190 | ||
5191 | static bool | |
5192 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
5193 | bool pointer) | |
5194 | { | |
5195 | gfc_constructor *c; | |
5196 | gfc_component *cm; | |
5197 | ||
5198 | if (pointer) | |
5199 | return true; | |
5200 | else if (array) | |
5201 | { | |
5202 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
5203 | return true; | |
5204 | else if (expr->expr_type == EXPR_STRUCTURE) | |
5205 | return check_constant_initializer (expr, ts, false, false); | |
5206 | else if (expr->expr_type != EXPR_ARRAY) | |
5207 | return false; | |
b7e75771 JD |
5208 | for (c = gfc_constructor_first (expr->value.constructor); |
5209 | c; c = gfc_constructor_next (c)) | |
bd11e37d JJ |
5210 | { |
5211 | if (c->iterator) | |
5212 | return false; | |
5213 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
5214 | { | |
5215 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
5216 | return false; | |
5217 | } | |
5218 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
5219 | return false; | |
5220 | } | |
5221 | return true; | |
5222 | } | |
5223 | else switch (ts->type) | |
5224 | { | |
f6288c24 | 5225 | case_bt_struct: |
bd11e37d JJ |
5226 | if (expr->expr_type != EXPR_STRUCTURE) |
5227 | return false; | |
bc21d315 | 5228 | cm = expr->ts.u.derived->components; |
b7e75771 JD |
5229 | for (c = gfc_constructor_first (expr->value.constructor); |
5230 | c; c = gfc_constructor_next (c), cm = cm->next) | |
bd11e37d JJ |
5231 | { |
5232 | if (!c->expr || cm->attr.allocatable) | |
5233 | continue; | |
5234 | if (!check_constant_initializer (c->expr, &cm->ts, | |
5235 | cm->attr.dimension, | |
5236 | cm->attr.pointer)) | |
5237 | return false; | |
5238 | } | |
5239 | return true; | |
5240 | default: | |
5241 | return expr->expr_type == EXPR_CONSTANT; | |
5242 | } | |
5243 | } | |
5244 | ||
5245 | /* Emit debug info for parameters and unreferenced variables with | |
5246 | initializers. */ | |
5247 | ||
5248 | static void | |
5249 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
5250 | { | |
5251 | tree decl; | |
5252 | ||
5253 | if (sym->attr.flavor != FL_PARAMETER | |
5254 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
5255 | return; | |
5256 | ||
5257 | if (sym->backend_decl != NULL | |
5258 | || sym->value == NULL | |
5259 | || sym->attr.use_assoc | |
5260 | || sym->attr.dummy | |
5261 | || sym->attr.result | |
5262 | || sym->attr.function | |
5263 | || sym->attr.intrinsic | |
5264 | || sym->attr.pointer | |
5265 | || sym->attr.allocatable | |
5266 | || sym->attr.cray_pointee | |
5267 | || sym->attr.threadprivate | |
5268 | || sym->attr.is_bind_c | |
5269 | || sym->attr.subref_array_pointer | |
5270 | || sym->attr.assign) | |
5271 | return; | |
5272 | ||
5273 | if (sym->ts.type == BT_CHARACTER) | |
5274 | { | |
bc21d315 JW |
5275 | gfc_conv_const_charlen (sym->ts.u.cl); |
5276 | if (sym->ts.u.cl->backend_decl == NULL | |
5277 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
bd11e37d JJ |
5278 | return; |
5279 | } | |
bc21d315 | 5280 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
bd11e37d JJ |
5281 | return; |
5282 | ||
5283 | if (sym->as) | |
5284 | { | |
5285 | int n; | |
5286 | ||
5287 | if (sym->as->type != AS_EXPLICIT) | |
5288 | return; | |
5289 | for (n = 0; n < sym->as->rank; n++) | |
5290 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5291 | || sym->as->upper[n] == NULL | |
5292 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5293 | return; | |
5294 | } | |
5295 | ||
5296 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5297 | sym->attr.dimension, false)) | |
5298 | return; | |
5299 | ||
f19626cf | 5300 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
b8ff4e88 TB |
5301 | return; |
5302 | ||
bd11e37d | 5303 | /* Create the decl for the variable or constant. */ |
c2255bc4 AH |
5304 | decl = build_decl (input_location, |
5305 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
bd11e37d JJ |
5306 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5307 | if (sym->attr.flavor == FL_PARAMETER) | |
5308 | TREE_READONLY (decl) = 1; | |
5309 | gfc_set_decl_location (decl, &sym->declared_at); | |
5310 | if (sym->attr.dimension) | |
5311 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5312 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5313 | TREE_STATIC (decl) = 1; | |
5314 | TREE_USED (decl) = 1; | |
5315 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5316 | TREE_PUBLIC (decl) = 1; | |
1d0134b3 JW |
5317 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5318 | TREE_TYPE (decl), | |
5319 | sym->attr.dimension, | |
5320 | false, false); | |
d7438551 | 5321 | debug_hooks->early_global_decl (decl); |
bd11e37d JJ |
5322 | } |
5323 | ||
b8ff4e88 TB |
5324 | |
5325 | static void | |
5326 | generate_coarray_sym_init (gfc_symbol *sym) | |
5327 | { | |
3c9f5092 | 5328 | tree tmp, size, decl, token, desc; |
5df445a2 | 5329 | bool is_lock_type, is_event_type; |
bc0229f9 | 5330 | int reg_type; |
3c9f5092 AV |
5331 | gfc_se se; |
5332 | symbol_attribute attr; | |
b8ff4e88 TB |
5333 | |
5334 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
d7463e5b TB |
5335 | || sym->attr.use_assoc || !sym->attr.referenced |
5336 | || sym->attr.select_type_temporary) | |
b8ff4e88 TB |
5337 | return; |
5338 | ||
5339 | decl = sym->backend_decl; | |
5340 | TREE_USED(decl) = 1; | |
5341 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5342 | ||
bc0229f9 TB |
5343 | is_lock_type = sym->ts.type == BT_DERIVED |
5344 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5345 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5346 | ||
5df445a2 TB |
5347 | is_event_type = sym->ts.type == BT_DERIVED |
5348 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5349 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5350 | ||
b8ff4e88 TB |
5351 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5352 | to make sure the variable is not optimized away. */ | |
5353 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5354 | ||
bc0229f9 TB |
5355 | /* For lock types, we pass the array size as only the library knows the |
5356 | size of the variable. */ | |
5df445a2 | 5357 | if (is_lock_type || is_event_type) |
bc0229f9 TB |
5358 | size = gfc_index_one_node; |
5359 | else | |
5360 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
b8ff4e88 | 5361 | |
8b704316 | 5362 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
107a9bc9 TB |
5363 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5364 | fold_convert (size_type_node, size), | |
5365 | build_int_cst (size_type_node, 1)); | |
5366 | ||
b8ff4e88 TB |
5367 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5368 | { | |
5369 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5370 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
107a9bc9 | 5371 | fold_convert (size_type_node, tmp), size); |
b8ff4e88 TB |
5372 | } |
5373 | ||
5374 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5375 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5376 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
bc0229f9 TB |
5377 | if (is_lock_type) |
5378 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
5df445a2 TB |
5379 | else if (is_event_type) |
5380 | reg_type = GFC_CAF_EVENT_STATIC; | |
bc0229f9 TB |
5381 | else |
5382 | reg_type = GFC_CAF_COARRAY_STATIC; | |
3c9f5092 | 5383 | |
ea06c7b0 AV |
5384 | /* Compile the symbol attribute. */ |
5385 | if (sym->ts.type == BT_CLASS) | |
5386 | { | |
5387 | attr = CLASS_DATA (sym)->attr; | |
5388 | /* The pointer attribute is always set on classes, overwrite it with the | |
5389 | class_pointer attribute, which denotes the pointer for classes. */ | |
5390 | attr.pointer = attr.class_pointer; | |
5391 | } | |
5392 | else | |
5393 | attr = sym->attr; | |
3c9f5092 AV |
5394 | gfc_init_se (&se, NULL); |
5395 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5396 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5397 | ||
5398 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
bc0229f9 | 5399 | build_int_cst (integer_type_node, reg_type), |
3c9f5092 AV |
5400 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5401 | null_pointer_node, /* stat. */ | |
ba85c8c3 | 5402 | null_pointer_node, /* errgmsg. */ |
3f5fabc0 | 5403 | build_zero_cst (size_type_node)); /* errmsg_len. */ |
3c9f5092 AV |
5404 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5405 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5406 | gfc_conv_descriptor_data_get (desc))); | |
b8ff4e88 | 5407 | |
b8ff4e88 TB |
5408 | /* Handle "static" initializer. */ |
5409 | if (sym->value) | |
5410 | { | |
d4a61138 TK |
5411 | if (sym->value->expr_type == EXPR_ARRAY) |
5412 | { | |
5413 | gfc_constructor *c, *cnext; | |
5414 | ||
5415 | /* Test if the array has more than one element. */ | |
5416 | c = gfc_constructor_first (sym->value->value.constructor); | |
5417 | gcc_assert (c); /* Empty constructor should not happen here. */ | |
5418 | cnext = gfc_constructor_next (c); | |
5419 | ||
5420 | if (cnext) | |
5421 | { | |
5422 | /* An EXPR_ARRAY with a rank > 1 here has to come from a | |
5423 | DATA statement. Set its rank here as not to confuse | |
5424 | the following steps. */ | |
5425 | sym->value->rank = 1; | |
5426 | } | |
5427 | else | |
5428 | { | |
5429 | /* There is only a single value in the constructor, use | |
5430 | it directly for the assignment. */ | |
5431 | gfc_expr *new_expr; | |
5432 | new_expr = gfc_copy_expr (c->expr); | |
5433 | gfc_free_expr (sym->value); | |
5434 | sym->value = new_expr; | |
5435 | } | |
5436 | } | |
5437 | ||
b8ff4e88 TB |
5438 | sym->attr.pointer = 1; |
5439 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5440 | true, false); | |
5441 | sym->attr.pointer = 0; | |
5442 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5443 | } | |
de91486c AV |
5444 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp) |
5445 | { | |
5446 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as | |
5447 | ? sym->as->rank : 0, | |
5448 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY); | |
5449 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5450 | } | |
b8ff4e88 TB |
5451 | } |
5452 | ||
5453 | ||
5454 | /* Generate constructor function to initialize static, nonallocatable | |
5455 | coarrays. */ | |
5456 | ||
5457 | static void | |
5458 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5459 | { | |
5460 | tree fndecl, tmp, decl, save_fn_decl; | |
5461 | ||
5462 | save_fn_decl = current_function_decl; | |
5463 | push_function_context (); | |
5464 | ||
5465 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5466 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5467 | create_tmp_var_name ("_caf_init"), tmp); | |
5468 | ||
5469 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5470 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5471 | ||
5472 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5473 | DECL_ARTIFICIAL (decl) = 1; | |
5474 | DECL_IGNORED_P (decl) = 1; | |
5475 | DECL_CONTEXT (decl) = fndecl; | |
5476 | DECL_RESULT (fndecl) = decl; | |
5477 | ||
5478 | pushdecl (fndecl); | |
5479 | current_function_decl = fndecl; | |
5480 | announce_function (fndecl); | |
5481 | ||
5482 | rest_of_decl_compilation (fndecl, 0, 0); | |
5483 | make_decl_rtl (fndecl); | |
b6b27e98 | 5484 | allocate_struct_function (fndecl, false); |
b8ff4e88 | 5485 | |
87a60f68 | 5486 | pushlevel (); |
b8ff4e88 TB |
5487 | gfc_init_block (&caf_init_block); |
5488 | ||
5489 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5490 | ||
5491 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5492 | decl = getdecls (); | |
5493 | ||
87a60f68 | 5494 | poplevel (1, 1); |
b8ff4e88 TB |
5495 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5496 | ||
5497 | DECL_SAVED_TREE (fndecl) | |
5498 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5499 | DECL_INITIAL (fndecl)); | |
5500 | dump_function (TDI_original, fndecl); | |
5501 | ||
5502 | cfun->function_end_locus = input_location; | |
5503 | set_cfun (NULL); | |
5504 | ||
5505 | if (decl_function_context (fndecl)) | |
d52f5295 | 5506 | (void) cgraph_node::create (fndecl); |
b8ff4e88 | 5507 | else |
3dafb85c | 5508 | cgraph_node::finalize_function (fndecl, true); |
b8ff4e88 TB |
5509 | |
5510 | pop_function_context (); | |
5511 | current_function_decl = save_fn_decl; | |
5512 | } | |
5513 | ||
5514 | ||
5f673c6a TB |
5515 | static void |
5516 | create_module_nml_decl (gfc_symbol *sym) | |
5517 | { | |
5518 | if (sym->attr.flavor == FL_NAMELIST) | |
5519 | { | |
5520 | tree decl = generate_namelist_decl (sym); | |
5521 | pushdecl (decl); | |
5522 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5523 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5524 | rest_of_decl_compilation (decl, 1, 0); | |
5525 | gfc_module_add_decl (cur_module, decl); | |
5526 | } | |
5527 | } | |
5528 | ||
5529 | ||
9268ba9a JJ |
5530 | /* Generate all the required code for module variables. */ |
5531 | ||
5532 | void | |
5533 | gfc_generate_module_vars (gfc_namespace * ns) | |
5534 | { | |
5535 | module_namespace = ns; | |
5536 | cur_module = gfc_find_module (ns->proc_name->name); | |
5537 | ||
5538 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5539 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5540 | ||
5541 | /* Generate COMMON blocks. */ | |
5542 | gfc_trans_common (ns); | |
5543 | ||
b8ff4e88 TB |
5544 | has_coarray_vars = false; |
5545 | ||
9268ba9a JJ |
5546 | /* Create decls for all the module variables. */ |
5547 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
5f673c6a | 5548 | gfc_traverse_ns (ns, create_module_nml_decl); |
9268ba9a | 5549 | |
f19626cf | 5550 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
5551 | generate_coarray_init (ns); |
5552 | ||
9268ba9a JJ |
5553 | cur_module = NULL; |
5554 | ||
5555 | gfc_trans_use_stmts (ns); | |
bd11e37d | 5556 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
9268ba9a JJ |
5557 | } |
5558 | ||
5559 | ||
6de9cd9a DN |
5560 | static void |
5561 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5562 | { | |
5563 | gfc_namespace *ns; | |
5564 | ||
5565 | /* We create all the prototypes before generating any code. */ | |
5566 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5567 | { | |
5568 | /* Skip namespaces from used modules. */ | |
5569 | if (ns->parent != parent) | |
5570 | continue; | |
5571 | ||
fb55ca75 | 5572 | gfc_create_function_decl (ns, false); |
6de9cd9a DN |
5573 | } |
5574 | ||
5575 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5576 | { | |
5577 | /* Skip namespaces from used modules. */ | |
5578 | if (ns->parent != parent) | |
5579 | continue; | |
5580 | ||
5581 | gfc_generate_function_code (ns); | |
5582 | } | |
5583 | } | |
5584 | ||
5585 | ||
3e978d30 PT |
5586 | /* Drill down through expressions for the array specification bounds and |
5587 | character length calling generate_local_decl for all those variables | |
5588 | that have not already been declared. */ | |
5589 | ||
5590 | static void | |
5591 | generate_local_decl (gfc_symbol *); | |
5592 | ||
908a2235 | 5593 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
3e978d30 | 5594 | |
908a2235 PT |
5595 | static bool |
5596 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5597 | int *f ATTRIBUTE_UNUSED) | |
5598 | { | |
5599 | if (e->expr_type != EXPR_VARIABLE | |
5600 | || sym == e->symtree->n.sym | |
3e978d30 PT |
5601 | || e->symtree->n.sym->mark |
5602 | || e->symtree->n.sym->ns != sym->ns) | |
908a2235 | 5603 | return false; |
3e978d30 | 5604 | |
908a2235 PT |
5605 | generate_local_decl (e->symtree->n.sym); |
5606 | return false; | |
5607 | } | |
3e978d30 | 5608 | |
908a2235 PT |
5609 | static void |
5610 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5611 | { | |
5612 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
3e978d30 PT |
5613 | } |
5614 | ||
5615 | ||
66e4ab31 | 5616 | /* Check for dependencies in the character length and array spec. */ |
3e978d30 PT |
5617 | |
5618 | static void | |
5619 | generate_dependency_declarations (gfc_symbol *sym) | |
5620 | { | |
5621 | int i; | |
5622 | ||
5623 | if (sym->ts.type == BT_CHARACTER | |
bc21d315 JW |
5624 | && sym->ts.u.cl |
5625 | && sym->ts.u.cl->length | |
5626 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5627 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
3e978d30 PT |
5628 | |
5629 | if (sym->as && sym->as->rank) | |
5630 | { | |
5631 | for (i = 0; i < sym->as->rank; i++) | |
5632 | { | |
5633 | generate_expr_decls (sym, sym->as->lower[i]); | |
5634 | generate_expr_decls (sym, sym->as->upper[i]); | |
5635 | } | |
5636 | } | |
5637 | } | |
5638 | ||
5639 | ||
6de9cd9a DN |
5640 | /* Generate decls for all local variables. We do this to ensure correct |
5641 | handling of expressions which only appear in the specification of | |
5642 | other functions. */ | |
5643 | ||
5644 | static void | |
5645 | generate_local_decl (gfc_symbol * sym) | |
5646 | { | |
5647 | if (sym->attr.flavor == FL_VARIABLE) | |
5648 | { | |
b8ff4e88 TB |
5649 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5650 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5651 | has_coarray_vars = true; | |
5652 | ||
3e978d30 | 5653 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
2c69d527 | 5654 | generate_dependency_declarations (sym); |
3e978d30 | 5655 | |
6de9cd9a | 5656 | if (sym->attr.referenced) |
2c69d527 | 5657 | gfc_get_symbol_decl (sym); |
4ed44ccc DF |
5658 | |
5659 | /* Warnings for unused dummy arguments. */ | |
c8877f40 | 5660 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
ad6d42e1 | 5661 | { |
4ed44ccc | 5662 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
73e42eef | 5663 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4ed44ccc DF |
5664 | { |
5665 | if (sym->ts.type != BT_DERIVED) | |
48749dbc MLI |
5666 | gfc_warning (OPT_Wunused_dummy_argument, |
5667 | "Dummy argument %qs at %L was declared " | |
4ed44ccc DF |
5668 | "INTENT(OUT) but was not set", sym->name, |
5669 | &sym->declared_at); | |
bf7a6c1c JW |
5670 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5671 | && !sym->ts.u.derived->attr.zero_comp) | |
48749dbc MLI |
5672 | gfc_warning (OPT_Wunused_dummy_argument, |
5673 | "Derived-type dummy argument %qs at %L was " | |
4ed44ccc DF |
5674 | "declared INTENT(OUT) but was not set and " |
5675 | "does not have a default initializer", | |
5676 | sym->name, &sym->declared_at); | |
fba5ace0 TB |
5677 | if (sym->backend_decl != NULL_TREE) |
5678 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4ed44ccc | 5679 | } |
73e42eef | 5680 | else if (warn_unused_dummy_argument) |
fba5ace0 | 5681 | { |
48749dbc MLI |
5682 | gfc_warning (OPT_Wunused_dummy_argument, |
5683 | "Unused dummy argument %qs at %L", sym->name, | |
5684 | &sym->declared_at); | |
fba5ace0 TB |
5685 | if (sym->backend_decl != NULL_TREE) |
5686 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5687 | } | |
ad6d42e1 | 5688 | } |
4ed44ccc | 5689 | |
f8d0aee5 | 5690 | /* Warn for unused variables, but not if they're inside a common |
ecdbf2cd | 5691 | block or a namelist. */ |
ce738b86 | 5692 | else if (warn_unused_variable |
ecdbf2cd | 5693 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
fba5ace0 | 5694 | { |
ecdbf2cd JW |
5695 | if (sym->attr.use_only) |
5696 | { | |
48749dbc MLI |
5697 | gfc_warning (OPT_Wunused_variable, |
5698 | "Unused module variable %qs which has been " | |
ecdbf2cd JW |
5699 | "explicitly imported at %L", sym->name, |
5700 | &sym->declared_at); | |
5701 | if (sym->backend_decl != NULL_TREE) | |
5702 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5703 | } | |
5704 | else if (!sym->attr.use_assoc) | |
5705 | { | |
ad7a5a8f SK |
5706 | /* Corner case: the symbol may be an entry point. At this point, |
5707 | it may appear to be an unused variable. Suppress warning. */ | |
5708 | bool enter = false; | |
5709 | gfc_entry_list *el; | |
5710 | ||
5711 | for (el = sym->ns->entries; el; el=el->next) | |
5712 | if (strcmp(sym->name, el->sym->name) == 0) | |
5713 | enter = true; | |
5714 | ||
5715 | if (!enter) | |
5716 | gfc_warning (OPT_Wunused_variable, | |
5717 | "Unused variable %qs declared at %L", | |
5718 | sym->name, &sym->declared_at); | |
ecdbf2cd JW |
5719 | if (sym->backend_decl != NULL_TREE) |
5720 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5721 | } | |
fba5ace0 | 5722 | } |
2c69d527 | 5723 | |
417ab240 JJ |
5724 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5725 | references the length variable, so force gfc_get_symbol_decl | |
5726 | even when not referenced. If optimize > 0, it will be optimized | |
5727 | away anyway. But do this only after emitting -Wunused-parameter | |
5728 | warning if requested. */ | |
2c69d527 PT |
5729 | if (sym->attr.dummy && !sym->attr.referenced |
5730 | && sym->ts.type == BT_CHARACTER | |
bc21d315 | 5731 | && sym->ts.u.cl->backend_decl != NULL |
d168c883 | 5732 | && VAR_P (sym->ts.u.cl->backend_decl)) |
417ab240 JJ |
5733 | { |
5734 | sym->attr.referenced = 1; | |
5735 | gfc_get_symbol_decl (sym); | |
5736 | } | |
534fd534 | 5737 | |
5af2eace PT |
5738 | /* INTENT(out) dummy arguments and result variables with allocatable |
5739 | components are reset by default and need to be set referenced to | |
5740 | generate the code for nullification and automatic lengths. */ | |
5741 | if (!sym->attr.referenced | |
2c69d527 | 5742 | && sym->ts.type == BT_DERIVED |
bc21d315 | 5743 | && sym->ts.u.derived->attr.alloc_comp |
758e12af | 5744 | && !sym->attr.pointer |
5af2eace PT |
5745 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5746 | || | |
5747 | (sym->attr.result && sym != sym->result))) | |
2c69d527 PT |
5748 | { |
5749 | sym->attr.referenced = 1; | |
5750 | gfc_get_symbol_decl (sym); | |
5751 | } | |
5752 | ||
06c7153f TB |
5753 | /* Check for dependencies in the array specification and string |
5754 | length, adding the necessary declarations to the function. We | |
5755 | mark the symbol now, as well as in traverse_ns, to prevent | |
5756 | getting stuck in a circular dependency. */ | |
5757 | sym->mark = 1; | |
6de9cd9a | 5758 | } |
33c0c5e9 DF |
5759 | else if (sym->attr.flavor == FL_PARAMETER) |
5760 | { | |
d92693b4 | 5761 | if (warn_unused_parameter |
dbad8e71 TB |
5762 | && !sym->attr.referenced) |
5763 | { | |
5764 | if (!sym->attr.use_assoc) | |
48749dbc MLI |
5765 | gfc_warning (OPT_Wunused_parameter, |
5766 | "Unused parameter %qs declared at %L", sym->name, | |
dbad8e71 TB |
5767 | &sym->declared_at); |
5768 | else if (sym->attr.use_only) | |
48749dbc MLI |
5769 | gfc_warning (OPT_Wunused_parameter, |
5770 | "Unused parameter %qs which has been explicitly " | |
dbad8e71 TB |
5771 | "imported at %L", sym->name, &sym->declared_at); |
5772 | } | |
285b1f01 | 5773 | |
fd0e6668 | 5774 | if (sym->ns && sym->ns->construct_entities) |
285b1f01 SK |
5775 | { |
5776 | if (sym->attr.referenced) | |
5777 | gfc_get_symbol_decl (sym); | |
5778 | sym->mark = 1; | |
5779 | } | |
33c0c5e9 | 5780 | } |
766d0c8c DF |
5781 | else if (sym->attr.flavor == FL_PROCEDURE) |
5782 | { | |
5783 | /* TODO: move to the appropriate place in resolve.c. */ | |
134d2354 | 5784 | if (warn_return_type > 0 |
766d0c8c DF |
5785 | && sym->attr.function |
5786 | && sym->result | |
5787 | && sym != sym->result | |
5788 | && !sym->result->attr.referenced | |
5789 | && !sym->attr.use_assoc | |
5790 | && sym->attr.if_source != IFSRC_IFBODY) | |
5791 | { | |
48749dbc MLI |
5792 | gfc_warning (OPT_Wreturn_type, |
5793 | "Return value %qs of function %qs declared at " | |
766d0c8c DF |
5794 | "%L not set", sym->result->name, sym->name, |
5795 | &sym->result->declared_at); | |
5796 | ||
5797 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
06c7153f | 5798 | sym->result->mark = 1; |
766d0c8c DF |
5799 | } |
5800 | } | |
a8b3b0b6 | 5801 | |
8b16d231 CR |
5802 | if (sym->attr.dummy == 1) |
5803 | { | |
5804 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5805 | procedures if they are passed by value. The tree type for them will | |
5806 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5807 | what C would do with characters passed by-value. The value attribute | |
5808 | implies the dummy is a scalar. */ | |
5809 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5810 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5811 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
e032c2a1 | 5812 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
d20597cb TK |
5813 | |
5814 | /* Unused procedure passed as dummy argument. */ | |
5815 | if (sym->attr.flavor == FL_PROCEDURE) | |
5816 | { | |
5817 | if (!sym->attr.referenced) | |
5818 | { | |
73e42eef | 5819 | if (warn_unused_dummy_argument) |
48749dbc MLI |
5820 | gfc_warning (OPT_Wunused_dummy_argument, |
5821 | "Unused dummy argument %qs at %L", sym->name, | |
8b704316 | 5822 | &sym->declared_at); |
d20597cb TK |
5823 | } |
5824 | ||
5825 | /* Silence bogus "unused parameter" warnings from the | |
5826 | middle end. */ | |
5827 | if (sym->backend_decl != NULL_TREE) | |
5828 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5829 | } | |
8b16d231 CR |
5830 | } |
5831 | ||
a8b3b0b6 CR |
5832 | /* Make sure we convert the types of the derived types from iso_c_binding |
5833 | into (void *). */ | |
5834 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5835 | && sym->ts.type == BT_DERIVED) | |
5836 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
6de9cd9a DN |
5837 | } |
5838 | ||
5f673c6a TB |
5839 | |
5840 | static void | |
5841 | generate_local_nml_decl (gfc_symbol * sym) | |
5842 | { | |
5843 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5844 | { | |
5845 | tree decl = generate_namelist_decl (sym); | |
5846 | pushdecl (decl); | |
5847 | } | |
5848 | } | |
5849 | ||
5850 | ||
6de9cd9a DN |
5851 | static void |
5852 | generate_local_vars (gfc_namespace * ns) | |
5853 | { | |
5854 | gfc_traverse_ns (ns, generate_local_decl); | |
5f673c6a | 5855 | gfc_traverse_ns (ns, generate_local_nml_decl); |
6de9cd9a DN |
5856 | } |
5857 | ||
5858 | ||
3d79abbd PB |
5859 | /* Generate a switch statement to jump to the correct entry point. Also |
5860 | creates the label decls for the entry points. */ | |
6de9cd9a | 5861 | |
3d79abbd PB |
5862 | static tree |
5863 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
6de9cd9a | 5864 | { |
3d79abbd PB |
5865 | stmtblock_t block; |
5866 | tree label; | |
5867 | tree tmp; | |
5868 | tree val; | |
6de9cd9a | 5869 | |
3d79abbd PB |
5870 | gfc_init_block (&block); |
5871 | for (; el; el = el->next) | |
5872 | { | |
5873 | /* Add the case label. */ | |
c006df4e | 5874 | label = gfc_build_label_decl (NULL_TREE); |
7d60be94 | 5875 | val = build_int_cst (gfc_array_index_type, el->id); |
3d528853 | 5876 | tmp = build_case_label (val, NULL_TREE, label); |
3d79abbd | 5877 | gfc_add_expr_to_block (&block, tmp); |
7389bce6 | 5878 | |
3d79abbd PB |
5879 | /* And jump to the actual entry point. */ |
5880 | label = gfc_build_label_decl (NULL_TREE); | |
3d79abbd PB |
5881 | tmp = build1_v (GOTO_EXPR, label); |
5882 | gfc_add_expr_to_block (&block, tmp); | |
5883 | ||
5884 | /* Save the label decl. */ | |
5885 | el->label = label; | |
5886 | } | |
5887 | tmp = gfc_finish_block (&block); | |
5888 | /* The first argument selects the entry point. */ | |
5889 | val = DECL_ARGUMENTS (current_function_decl); | |
9e851845 | 5890 | tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp); |
3d79abbd | 5891 | return tmp; |
6de9cd9a DN |
5892 | } |
5893 | ||
44de5aeb | 5894 | |
cadb8f42 DK |
5895 | /* Add code to string lengths of actual arguments passed to a function against |
5896 | the expected lengths of the dummy arguments. */ | |
5897 | ||
5898 | static void | |
5899 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5900 | { | |
5901 | gfc_formal_arglist *formal; | |
5902 | ||
4cbc9039 | 5903 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
be94c034 | 5904 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
9be1227b | 5905 | && !formal->sym->ts.deferred) |
cadb8f42 DK |
5906 | { |
5907 | enum tree_code comparison; | |
5908 | tree cond; | |
5909 | tree argname; | |
5910 | gfc_symbol *fsym; | |
5911 | gfc_charlen *cl; | |
5912 | const char *message; | |
5913 | ||
5914 | fsym = formal->sym; | |
bc21d315 | 5915 | cl = fsym->ts.u.cl; |
cadb8f42 DK |
5916 | |
5917 | gcc_assert (cl); | |
5918 | gcc_assert (cl->passed_length != NULL_TREE); | |
5919 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5920 | ||
5921 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5922 | string lengths must match exactly. Otherwise, it is only required | |
cb7a8961 TB |
5923 | that the actual string length is *at least* the expected one. |
5924 | Sequence association allows for a mismatch of the string length | |
5925 | if the actual argument is (part of) an array, but only if the | |
5926 | dummy argument is an array. (See "Sequence association" in | |
5927 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
be94c034 | 5928 | if (fsym->attr.pointer || fsym->attr.allocatable |
c62c6622 TB |
5929 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5930 | || fsym->as->type == AS_ASSUMED_RANK))) | |
cadb8f42 DK |
5931 | { |
5932 | comparison = NE_EXPR; | |
5933 | message = _("Actual string length does not match the declared one" | |
5934 | " for dummy argument '%s' (%ld/%ld)"); | |
5935 | } | |
cb7a8961 TB |
5936 | else if (fsym->as && fsym->as->rank != 0) |
5937 | continue; | |
cadb8f42 DK |
5938 | else |
5939 | { | |
5940 | comparison = LT_EXPR; | |
5941 | message = _("Actual string length is shorter than the declared one" | |
5942 | " for dummy argument '%s' (%ld/%ld)"); | |
5943 | } | |
5944 | ||
5945 | /* Build the condition. For optional arguments, an actual length | |
5946 | of 0 is also acceptable if the associated string is NULL, which | |
5947 | means the argument was not passed. */ | |
63ee5404 | 5948 | cond = fold_build2_loc (input_location, comparison, logical_type_node, |
bc98ed60 | 5949 | cl->passed_length, cl->backend_decl); |
cadb8f42 DK |
5950 | if (fsym->attr.optional) |
5951 | { | |
5952 | tree not_absent; | |
5953 | tree not_0length; | |
5954 | tree absent_failed; | |
5955 | ||
bc98ed60 | 5956 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
63ee5404 | 5957 | logical_type_node, |
bc98ed60 | 5958 | cl->passed_length, |
f622221a JB |
5959 | build_zero_cst |
5960 | (TREE_TYPE (cl->passed_length))); | |
702a738b PT |
5961 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5962 | fsym->attr.referenced = 1; | |
5963 | not_absent = gfc_conv_expr_present (fsym); | |
cadb8f42 | 5964 | |
bc98ed60 | 5965 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
63ee5404 | 5966 | logical_type_node, not_0length, |
bc98ed60 | 5967 | not_absent); |
cadb8f42 | 5968 | |
bc98ed60 | 5969 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
63ee5404 | 5970 | logical_type_node, cond, absent_failed); |
cadb8f42 DK |
5971 | } |
5972 | ||
5973 | /* Build the runtime check. */ | |
5974 | argname = gfc_build_cstring_const (fsym->name); | |
5975 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5976 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5977 | message, argname, | |
5978 | fold_convert (long_integer_type_node, | |
5979 | cl->passed_length), | |
5980 | fold_convert (long_integer_type_node, | |
5981 | cl->backend_decl)); | |
5982 | } | |
5983 | } | |
5984 | ||
5985 | ||
092231a8 TB |
5986 | static void |
5987 | create_main_function (tree fndecl) | |
5988 | { | |
86c3c481 | 5989 | tree old_context; |
092231a8 TB |
5990 | tree ftn_main; |
5991 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5992 | stmtblock_t body; | |
5993 | ||
86c3c481 TB |
5994 | old_context = current_function_decl; |
5995 | ||
5996 | if (old_context) | |
5997 | { | |
5998 | push_function_context (); | |
5999 | saved_parent_function_decls = saved_function_decls; | |
6000 | saved_function_decls = NULL_TREE; | |
6001 | } | |
6002 | ||
092231a8 TB |
6003 | /* main() function must be declared with global scope. */ |
6004 | gcc_assert (current_function_decl == NULL_TREE); | |
6005 | ||
6006 | /* Declare the function. */ | |
6007 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
6008 | build_pointer_type (pchar_type_node), | |
6009 | NULL_TREE); | |
a7ad6c2d | 6010 | main_identifier_node = get_identifier ("main"); |
c2255bc4 AH |
6011 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
6012 | main_identifier_node, tmp); | |
092231a8 TB |
6013 | DECL_EXTERNAL (ftn_main) = 0; |
6014 | TREE_PUBLIC (ftn_main) = 1; | |
6015 | TREE_STATIC (ftn_main) = 1; | |
6016 | DECL_ATTRIBUTES (ftn_main) | |
6017 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
6018 | ||
6019 | /* Setup the result declaration (for "return 0"). */ | |
c2255bc4 AH |
6020 | result_decl = build_decl (input_location, |
6021 | RESULT_DECL, NULL_TREE, integer_type_node); | |
092231a8 TB |
6022 | DECL_ARTIFICIAL (result_decl) = 1; |
6023 | DECL_IGNORED_P (result_decl) = 1; | |
6024 | DECL_CONTEXT (result_decl) = ftn_main; | |
6025 | DECL_RESULT (ftn_main) = result_decl; | |
6026 | ||
6027 | pushdecl (ftn_main); | |
6028 | ||
6029 | /* Get the arguments. */ | |
6030 | ||
6031 | arglist = NULL_TREE; | |
6032 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
6033 | ||
6034 | tmp = TREE_VALUE (typelist); | |
c2255bc4 | 6035 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
092231a8 TB |
6036 | DECL_CONTEXT (argc) = ftn_main; |
6037 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
6038 | TREE_READONLY (argc) = 1; | |
6039 | gfc_finish_decl (argc); | |
6040 | arglist = chainon (arglist, argc); | |
6041 | ||
6042 | typelist = TREE_CHAIN (typelist); | |
6043 | tmp = TREE_VALUE (typelist); | |
c2255bc4 | 6044 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
092231a8 TB |
6045 | DECL_CONTEXT (argv) = ftn_main; |
6046 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
6047 | TREE_READONLY (argv) = 1; | |
6048 | DECL_BY_REFERENCE (argv) = 1; | |
6049 | gfc_finish_decl (argv); | |
6050 | arglist = chainon (arglist, argv); | |
6051 | ||
6052 | DECL_ARGUMENTS (ftn_main) = arglist; | |
6053 | current_function_decl = ftn_main; | |
6054 | announce_function (ftn_main); | |
6055 | ||
6056 | rest_of_decl_compilation (ftn_main, 1, 0); | |
6057 | make_decl_rtl (ftn_main); | |
b6b27e98 | 6058 | allocate_struct_function (ftn_main, false); |
87a60f68 | 6059 | pushlevel (); |
092231a8 TB |
6060 | |
6061 | gfc_init_block (&body); | |
6062 | ||
1cc0e193 | 6063 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
092231a8 | 6064 | |
a8a5f4a9 | 6065 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
f19626cf | 6066 | if (flag_coarray == GFC_FCOARRAY_LIB) |
60386f50 TB |
6067 | { |
6068 | tree pint_type, pppchar_type; | |
6069 | pint_type = build_pointer_type (integer_type_node); | |
6070 | pppchar_type | |
6071 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
6072 | ||
a8a5f4a9 | 6073 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
60386f50 | 6074 | gfc_build_addr_expr (pint_type, argc), |
a8a5f4a9 | 6075 | gfc_build_addr_expr (pppchar_type, argv)); |
60386f50 TB |
6076 | gfc_add_expr_to_block (&body, tmp); |
6077 | } | |
6078 | ||
092231a8 | 6079 | /* Call _gfortran_set_args (argc, argv). */ |
86c3c481 TB |
6080 | TREE_USED (argc) = 1; |
6081 | TREE_USED (argv) = 1; | |
db3927fb AH |
6082 | tmp = build_call_expr_loc (input_location, |
6083 | gfor_fndecl_set_args, 2, argc, argv); | |
092231a8 TB |
6084 | gfc_add_expr_to_block (&body, tmp); |
6085 | ||
6086 | /* Add a call to set_options to set up the runtime library Fortran | |
6087 | language standard parameters. */ | |
6088 | { | |
6089 | tree array_type, array, var; | |
9771b263 | 6090 | vec<constructor_elt, va_gc> *v = NULL; |
75b07bb4 | 6091 | static const int noptions = 7; |
092231a8 | 6092 | |
75b07bb4 FXC |
6093 | /* Passing a new option to the library requires three modifications: |
6094 | + add it to the tree_cons list below | |
6095 | + change the noptions variable above | |
092231a8 TB |
6096 | + modify the library (runtime/compile_options.c)! */ |
6097 | ||
8748ad99 NF |
6098 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6099 | build_int_cst (integer_type_node, | |
6100 | gfc_option.warn_std)); | |
6101 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6102 | build_int_cst (integer_type_node, | |
6103 | gfc_option.allow_std)); | |
6104 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6105 | build_int_cst (integer_type_node, pedantic)); | |
8748ad99 | 6106 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
c61819ff | 6107 | build_int_cst (integer_type_node, flag_backtrace)); |
8748ad99 | 6108 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
c61819ff | 6109 | build_int_cst (integer_type_node, flag_sign_zero)); |
8748ad99 NF |
6110 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6111 | build_int_cst (integer_type_node, | |
6112 | (gfc_option.rtcheck | |
6113 | & GFC_RTCHECK_BOUNDS))); | |
6114 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6115 | build_int_cst (integer_type_node, | |
fa86f4f9 | 6116 | gfc_option.fpe_summary)); |
092231a8 | 6117 | |
75b07bb4 | 6118 | array_type = build_array_type_nelts (integer_type_node, noptions); |
8748ad99 | 6119 | array = build_constructor (array_type, v); |
092231a8 TB |
6120 | TREE_CONSTANT (array) = 1; |
6121 | TREE_STATIC (array) = 1; | |
6122 | ||
6123 | /* Create a static variable to hold the jump table. */ | |
059345ce | 6124 | var = build_decl (input_location, VAR_DECL, |
75b07bb4 | 6125 | create_tmp_var_name ("options"), array_type); |
059345ce BS |
6126 | DECL_ARTIFICIAL (var) = 1; |
6127 | DECL_IGNORED_P (var) = 1; | |
092231a8 TB |
6128 | TREE_CONSTANT (var) = 1; |
6129 | TREE_STATIC (var) = 1; | |
6130 | TREE_READONLY (var) = 1; | |
6131 | DECL_INITIAL (var) = array; | |
059345ce | 6132 | pushdecl (var); |
092231a8 TB |
6133 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
6134 | ||
db3927fb AH |
6135 | tmp = build_call_expr_loc (input_location, |
6136 | gfor_fndecl_set_options, 2, | |
75b07bb4 | 6137 | build_int_cst (integer_type_node, noptions), var); |
092231a8 TB |
6138 | gfc_add_expr_to_block (&body, tmp); |
6139 | } | |
6140 | ||
6141 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
6142 | the library will raise a FPE when needed. */ | |
6143 | if (gfc_option.fpe != 0) | |
6144 | { | |
db3927fb AH |
6145 | tmp = build_call_expr_loc (input_location, |
6146 | gfor_fndecl_set_fpe, 1, | |
092231a8 TB |
6147 | build_int_cst (integer_type_node, |
6148 | gfc_option.fpe)); | |
6149 | gfc_add_expr_to_block (&body, tmp); | |
6150 | } | |
6151 | ||
6152 | /* If this is the main program and an -fconvert option was provided, | |
6153 | add a call to set_convert. */ | |
6154 | ||
f19626cf | 6155 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
092231a8 | 6156 | { |
db3927fb AH |
6157 | tmp = build_call_expr_loc (input_location, |
6158 | gfor_fndecl_set_convert, 1, | |
f19626cf | 6159 | build_int_cst (integer_type_node, flag_convert)); |
092231a8 TB |
6160 | gfc_add_expr_to_block (&body, tmp); |
6161 | } | |
6162 | ||
6163 | /* If this is the main program and an -frecord-marker option was provided, | |
6164 | add a call to set_record_marker. */ | |
6165 | ||
203c7ebf | 6166 | if (flag_record_marker != 0) |
092231a8 | 6167 | { |
db3927fb AH |
6168 | tmp = build_call_expr_loc (input_location, |
6169 | gfor_fndecl_set_record_marker, 1, | |
092231a8 | 6170 | build_int_cst (integer_type_node, |
203c7ebf | 6171 | flag_record_marker)); |
092231a8 TB |
6172 | gfc_add_expr_to_block (&body, tmp); |
6173 | } | |
6174 | ||
203c7ebf | 6175 | if (flag_max_subrecord_length != 0) |
092231a8 | 6176 | { |
db3927fb AH |
6177 | tmp = build_call_expr_loc (input_location, |
6178 | gfor_fndecl_set_max_subrecord_length, 1, | |
092231a8 | 6179 | build_int_cst (integer_type_node, |
203c7ebf | 6180 | flag_max_subrecord_length)); |
092231a8 TB |
6181 | gfc_add_expr_to_block (&body, tmp); |
6182 | } | |
6183 | ||
6184 | /* Call MAIN__(). */ | |
db3927fb AH |
6185 | tmp = build_call_expr_loc (input_location, |
6186 | fndecl, 0); | |
092231a8 TB |
6187 | gfc_add_expr_to_block (&body, tmp); |
6188 | ||
86c3c481 TB |
6189 | /* Mark MAIN__ as used. */ |
6190 | TREE_USED (fndecl) = 1; | |
6191 | ||
60386f50 | 6192 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
f19626cf | 6193 | if (flag_coarray == GFC_FCOARRAY_LIB) |
8b704316 | 6194 | { |
60386f50 TB |
6195 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
6196 | gfc_add_expr_to_block (&body, tmp); | |
6197 | } | |
6198 | ||
092231a8 | 6199 | /* "return 0". */ |
bc98ed60 TB |
6200 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
6201 | DECL_RESULT (ftn_main), | |
6202 | build_int_cst (integer_type_node, 0)); | |
092231a8 TB |
6203 | tmp = build1_v (RETURN_EXPR, tmp); |
6204 | gfc_add_expr_to_block (&body, tmp); | |
6205 | ||
6206 | ||
6207 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
6208 | decl = getdecls (); | |
6209 | ||
6210 | /* Finish off this function and send it for code generation. */ | |
87a60f68 | 6211 | poplevel (1, 1); |
092231a8 TB |
6212 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
6213 | ||
6214 | DECL_SAVED_TREE (ftn_main) | |
6215 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
6216 | DECL_INITIAL (ftn_main)); | |
6217 | ||
6218 | /* Output the GENERIC tree. */ | |
6219 | dump_function (TDI_original, ftn_main); | |
6220 | ||
3dafb85c | 6221 | cgraph_node::finalize_function (ftn_main, true); |
86c3c481 TB |
6222 | |
6223 | if (old_context) | |
6224 | { | |
6225 | pop_function_context (); | |
6226 | saved_function_decls = saved_parent_function_decls; | |
6227 | } | |
6228 | current_function_decl = old_context; | |
092231a8 TB |
6229 | } |
6230 | ||
6231 | ||
d74d8807 DK |
6232 | /* Generate an appropriate return-statement for a procedure. */ |
6233 | ||
6234 | tree | |
6235 | gfc_generate_return (void) | |
6236 | { | |
6237 | gfc_symbol* sym; | |
6238 | tree result; | |
6239 | tree fndecl; | |
6240 | ||
6241 | sym = current_procedure_symbol; | |
6242 | fndecl = sym->backend_decl; | |
6243 | ||
6244 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
6245 | result = NULL_TREE; | |
6246 | else | |
6247 | { | |
6248 | result = get_proc_result (sym); | |
6249 | ||
6250 | /* Set the return value to the dummy result variable. The | |
6251 | types may be different for scalar default REAL functions | |
6252 | with -ff2c, therefore we have to convert. */ | |
6253 | if (result != NULL_TREE) | |
6254 | { | |
6255 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
bc98ed60 TB |
6256 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
6257 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
6258 | result); | |
d74d8807 DK |
6259 | } |
6260 | } | |
6261 | ||
6262 | return build1_v (RETURN_EXPR, result); | |
6263 | } | |
6264 | ||
6265 | ||
8b198102 FXC |
6266 | static void |
6267 | is_from_ieee_module (gfc_symbol *sym) | |
6268 | { | |
6269 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6270 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6271 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6272 | seen_ieee_symbol = 1; | |
6273 | } | |
6274 | ||
6275 | ||
6276 | static int | |
6277 | is_ieee_module_used (gfc_namespace *ns) | |
6278 | { | |
6279 | seen_ieee_symbol = 0; | |
6280 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6281 | return seen_ieee_symbol; | |
6282 | } | |
6283 | ||
6284 | ||
dc7a8b4b JN |
6285 | static gfc_omp_clauses *module_oacc_clauses; |
6286 | ||
6287 | ||
6288 | static void | |
6289 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6290 | { | |
6291 | gfc_omp_namelist *n; | |
6292 | ||
6293 | n = gfc_get_omp_namelist (); | |
6294 | n->sym = sym; | |
6295 | n->u.map_op = map_op; | |
6296 | ||
6297 | if (!module_oacc_clauses) | |
6298 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6299 | ||
6300 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6301 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6302 | ||
6303 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6304 | } | |
6305 | ||
6306 | ||
6307 | static void | |
6308 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6309 | { | |
6310 | if (sym->attr.use_assoc) | |
6311 | { | |
6312 | gfc_omp_map_op map_op; | |
6313 | ||
6314 | if (sym->attr.oacc_declare_create) | |
6315 | map_op = OMP_MAP_FORCE_ALLOC; | |
6316 | ||
6317 | if (sym->attr.oacc_declare_copyin) | |
6318 | map_op = OMP_MAP_FORCE_TO; | |
6319 | ||
6320 | if (sym->attr.oacc_declare_deviceptr) | |
6321 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6322 | ||
6323 | if (sym->attr.oacc_declare_device_resident) | |
6324 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6325 | ||
6326 | if (sym->attr.oacc_declare_create | |
6327 | || sym->attr.oacc_declare_copyin | |
6328 | || sym->attr.oacc_declare_deviceptr | |
6329 | || sym->attr.oacc_declare_device_resident) | |
6330 | { | |
6331 | sym->attr.referenced = 1; | |
6332 | add_clause (sym, map_op); | |
6333 | } | |
6334 | } | |
6335 | } | |
6336 | ||
6337 | ||
6338 | void | |
6339 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6340 | { | |
6341 | gfc_code *code; | |
6342 | gfc_oacc_declare *oc; | |
6343 | locus where = gfc_current_locus; | |
6344 | gfc_omp_clauses *omp_clauses = NULL; | |
6345 | gfc_omp_namelist *n, *p; | |
6346 | ||
6347 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6348 | ||
6349 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6350 | { | |
6351 | gfc_oacc_declare *new_oc; | |
6352 | ||
6353 | new_oc = gfc_get_oacc_declare (); | |
6354 | new_oc->next = ns->oacc_declare; | |
6355 | new_oc->clauses = module_oacc_clauses; | |
6356 | ||
6357 | ns->oacc_declare = new_oc; | |
6358 | module_oacc_clauses = NULL; | |
6359 | } | |
6360 | ||
6361 | if (!ns->oacc_declare) | |
6362 | return; | |
6363 | ||
6364 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6365 | { | |
6366 | if (oc->module_var) | |
6367 | continue; | |
6368 | ||
6369 | if (block) | |
e711928b | 6370 | gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed " |
dc7a8b4b JN |
6371 | "in BLOCK construct", &oc->loc); |
6372 | ||
6373 | ||
6374 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6375 | { | |
6376 | if (omp_clauses == NULL) | |
6377 | { | |
6378 | omp_clauses = oc->clauses; | |
6379 | continue; | |
6380 | } | |
6381 | ||
6382 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6383 | ; | |
6384 | ||
6385 | gcc_assert (p->next == NULL); | |
6386 | ||
6387 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6388 | omp_clauses = oc->clauses; | |
6389 | } | |
6390 | } | |
6391 | ||
6392 | if (!omp_clauses) | |
6393 | return; | |
6394 | ||
6395 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6396 | { | |
6397 | switch (n->u.map_op) | |
6398 | { | |
6399 | case OMP_MAP_DEVICE_RESIDENT: | |
6400 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6401 | break; | |
6402 | ||
6403 | default: | |
6404 | break; | |
6405 | } | |
6406 | } | |
6407 | ||
6408 | code = XCNEW (gfc_code); | |
6409 | code->op = EXEC_OACC_DECLARE; | |
6410 | code->loc = where; | |
6411 | ||
6412 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6413 | code->ext.oacc_declare->clauses = omp_clauses; | |
6414 | ||
6415 | code->block = XCNEW (gfc_code); | |
6416 | code->block->op = EXEC_OACC_DECLARE; | |
6417 | code->block->loc = where; | |
6418 | ||
6419 | if (ns->code) | |
6420 | code->block->next = ns->code; | |
6421 | ||
6422 | ns->code = code; | |
6423 | ||
6424 | return; | |
6425 | } | |
6426 | ||
6427 | ||
6de9cd9a DN |
6428 | /* Generate code for a function. */ |
6429 | ||
6430 | void | |
6431 | gfc_generate_function_code (gfc_namespace * ns) | |
6432 | { | |
6433 | tree fndecl; | |
6434 | tree old_context; | |
6435 | tree decl; | |
6436 | tree tmp; | |
8b198102 | 6437 | tree fpstate = NULL_TREE; |
d74d8807 | 6438 | stmtblock_t init, cleanup; |
6de9cd9a | 6439 | stmtblock_t body; |
d74d8807 | 6440 | gfc_wrapped_block try_block; |
702a738b | 6441 | tree recurcheckvar = NULL_TREE; |
6de9cd9a | 6442 | gfc_symbol *sym; |
d74d8807 | 6443 | gfc_symbol *previous_procedure_symbol; |
8b198102 | 6444 | int rank, ieee; |
cf7d2eb0 | 6445 | bool is_recursive; |
6de9cd9a DN |
6446 | |
6447 | sym = ns->proc_name; | |
d74d8807 DK |
6448 | previous_procedure_symbol = current_procedure_symbol; |
6449 | current_procedure_symbol = sym; | |
3d79abbd | 6450 | |
345bd7eb PT |
6451 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6452 | lost or worse. */ | |
6de9cd9a DN |
6453 | sym->tlink = sym; |
6454 | ||
6455 | /* Create the declaration for functions with global scope. */ | |
6456 | if (!sym->backend_decl) | |
fb55ca75 | 6457 | gfc_create_function_decl (ns, false); |
6de9cd9a DN |
6458 | |
6459 | fndecl = sym->backend_decl; | |
6460 | old_context = current_function_decl; | |
6461 | ||
6462 | if (old_context) | |
6463 | { | |
6464 | push_function_context (); | |
6465 | saved_parent_function_decls = saved_function_decls; | |
6466 | saved_function_decls = NULL_TREE; | |
6467 | } | |
6468 | ||
3d79abbd | 6469 | trans_function_start (sym); |
6de9cd9a | 6470 | |
d74d8807 | 6471 | gfc_init_block (&init); |
6de9cd9a | 6472 | |
d198b59a JJ |
6473 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6474 | { | |
6475 | /* Copy length backend_decls to all entry point result | |
6476 | symbols. */ | |
6477 | gfc_entry_list *el; | |
6478 | tree backend_decl; | |
6479 | ||
bc21d315 JW |
6480 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6481 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
d198b59a | 6482 | for (el = ns->entries; el; el = el->next) |
bc21d315 | 6483 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
d198b59a JJ |
6484 | } |
6485 | ||
6de9cd9a DN |
6486 | /* Translate COMMON blocks. */ |
6487 | gfc_trans_common (ns); | |
6488 | ||
5f20c93a PT |
6489 | /* Null the parent fake result declaration if this namespace is |
6490 | a module function or an external procedures. */ | |
6491 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6492 | || ns->parent == NULL) | |
6493 | parent_fake_result_decl = NULL_TREE; | |
6494 | ||
30aabb86 PT |
6495 | gfc_generate_contained_functions (ns); |
6496 | ||
77f2a970 JJ |
6497 | nonlocal_dummy_decls = NULL; |
6498 | nonlocal_dummy_decl_pset = NULL; | |
6499 | ||
b8ff4e88 | 6500 | has_coarray_vars = false; |
6de9cd9a | 6501 | generate_local_vars (ns); |
7389bce6 | 6502 | |
f19626cf | 6503 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
6504 | generate_coarray_init (ns); |
6505 | ||
5f20c93a PT |
6506 | /* Keep the parent fake result declaration in module functions |
6507 | or external procedures. */ | |
6508 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6509 | || ns->parent == NULL) | |
6510 | current_fake_result_decl = parent_fake_result_decl; | |
6511 | else | |
6512 | current_fake_result_decl = NULL_TREE; | |
6513 | ||
d74d8807 DK |
6514 | is_recursive = sym->attr.recursive |
6515 | || (sym->attr.entry_master | |
6516 | && sym->ns->entries->sym->attr.recursive); | |
6517 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
c61819ff | 6518 | && !is_recursive && !flag_recursive) |
d74d8807 DK |
6519 | { |
6520 | char * msg; | |
6521 | ||
1a33dc9e UB |
6522 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6523 | sym->name); | |
63ee5404 | 6524 | recurcheckvar = gfc_create_var (logical_type_node, "is_recursive"); |
d74d8807 | 6525 | TREE_STATIC (recurcheckvar) = 1; |
63ee5404 | 6526 | DECL_INITIAL (recurcheckvar) = logical_false_node; |
d74d8807 DK |
6527 | gfc_add_expr_to_block (&init, recurcheckvar); |
6528 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6529 | &sym->declared_at, msg); | |
63ee5404 | 6530 | gfc_add_modify (&init, recurcheckvar, logical_true_node); |
cede9502 | 6531 | free (msg); |
d74d8807 | 6532 | } |
6de9cd9a | 6533 | |
8b198102 FXC |
6534 | /* Check if an IEEE module is used in the procedure. If so, save |
6535 | the floating point state. */ | |
6536 | ieee = is_ieee_module_used (ns); | |
6537 | if (ieee) | |
3b7ea188 | 6538 | fpstate = gfc_save_fp_state (&init); |
8b198102 | 6539 | |
6de9cd9a DN |
6540 | /* Now generate the code for the body of this function. */ |
6541 | gfc_init_block (&body); | |
6542 | ||
6543 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
d74d8807 | 6544 | && sym->attr.subroutine) |
6de9cd9a DN |
6545 | { |
6546 | tree alternate_return; | |
5f20c93a | 6547 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
726a989a | 6548 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
6de9cd9a DN |
6549 | } |
6550 | ||
3d79abbd PB |
6551 | if (ns->entries) |
6552 | { | |
6553 | /* Jump to the correct entry point. */ | |
6554 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6555 | gfc_add_expr_to_block (&body, tmp); | |
6556 | } | |
6557 | ||
cadb8f42 DK |
6558 | /* If bounds-checking is enabled, generate code to check passed in actual |
6559 | arguments against the expected dummy argument attributes (e.g. string | |
6560 | lengths). */ | |
975d3303 | 6561 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
cadb8f42 DK |
6562 | add_argument_checking (&body, sym); |
6563 | ||
dc7a8b4b | 6564 | finish_oacc_declare (ns, sym, false); |
41dbbb37 | 6565 | |
6de9cd9a DN |
6566 | tmp = gfc_trans_code (ns->code); |
6567 | gfc_add_expr_to_block (&body, tmp); | |
6568 | ||
c16126ac AV |
6569 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6570 | || (sym->result && sym->result != sym | |
6571 | && sym->result->ts.type == BT_DERIVED | |
6572 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
6de9cd9a | 6573 | { |
c16126ac | 6574 | bool artificial_result_decl = false; |
d74d8807 | 6575 | tree result = get_proc_result (sym); |
c16126ac AV |
6576 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6577 | ||
6578 | /* Make sure that a function returning an object with | |
6579 | alloc/pointer_components always has a result, where at least | |
6580 | the allocatable/pointer components are set to zero. */ | |
6581 | if (result == NULL_TREE && sym->attr.function | |
6582 | && ((sym->result->ts.type == BT_DERIVED | |
6583 | && (sym->attr.allocatable | |
6584 | || sym->attr.pointer | |
6585 | || sym->result->ts.u.derived->attr.alloc_comp | |
6586 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6587 | || (sym->result->ts.type == BT_CLASS | |
6588 | && (CLASS_DATA (sym)->attr.allocatable | |
6589 | || CLASS_DATA (sym)->attr.class_pointer | |
6590 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6591 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6592 | { | |
6593 | artificial_result_decl = true; | |
6594 | result = gfc_get_fake_result_decl (sym, 0); | |
6595 | } | |
6de9cd9a | 6596 | |
7a3eeb85 | 6597 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
5046aff5 | 6598 | { |
f18694de TB |
6599 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6600 | && sym->result == sym) | |
6601 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6602 | null_pointer_node)); | |
7a3eeb85 JW |
6603 | else if (sym->ts.type == BT_CLASS |
6604 | && CLASS_DATA (sym)->attr.allocatable | |
102344e2 TB |
6605 | && CLASS_DATA (sym)->attr.dimension == 0 |
6606 | && sym->result == sym) | |
7a3eeb85 JW |
6607 | { |
6608 | tmp = CLASS_DATA (sym)->backend_decl; | |
6609 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6610 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6611 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6612 | null_pointer_node)); | |
6613 | } | |
f18694de | 6614 | else if (sym->ts.type == BT_DERIVED |
7a3eeb85 | 6615 | && !sym->attr.allocatable) |
5b130807 | 6616 | { |
c16126ac AV |
6617 | gfc_expr *init_exp; |
6618 | /* Arrays are not initialized using the default initializer of | |
6619 | their elements. Therefore only check if a default | |
6620 | initializer is available when the result is scalar. */ | |
7fc61626 FR |
6621 | init_exp = rsym->as ? NULL |
6622 | : gfc_generate_initializer (&rsym->ts, true); | |
c16126ac AV |
6623 | if (init_exp) |
6624 | { | |
6625 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6626 | gfc_free_expr (init_exp); | |
6627 | gfc_add_expr_to_block (&init, tmp); | |
6628 | } | |
6629 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6630 | { | |
6631 | rank = rsym->as ? rsym->as->rank : 0; | |
6632 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6633 | rank); | |
6634 | gfc_prepend_expr_to_block (&body, tmp); | |
6635 | } | |
5b130807 | 6636 | } |
958dd42b | 6637 | } |
cf7d2eb0 | 6638 | |
c16126ac | 6639 | if (result == NULL_TREE || artificial_result_decl) |
766d0c8c DF |
6640 | { |
6641 | /* TODO: move to the appropriate place in resolve.c. */ | |
134d2354 | 6642 | if (warn_return_type > 0 && sym == sym->result) |
48749dbc MLI |
6643 | gfc_warning (OPT_Wreturn_type, |
6644 | "Return value of function %qs at %L not set", | |
766d0c8c | 6645 | sym->name, &sym->declared_at); |
134d2354 | 6646 | if (warn_return_type > 0) |
fba5ace0 | 6647 | TREE_NO_WARNING(sym->backend_decl) = 1; |
766d0c8c | 6648 | } |
c16126ac | 6649 | if (result != NULL_TREE) |
d74d8807 | 6650 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
6de9cd9a | 6651 | } |
d74d8807 DK |
6652 | |
6653 | gfc_init_block (&cleanup); | |
6654 | ||
6655 | /* Reset recursion-check variable. */ | |
6656 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
c61819ff | 6657 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
cf7d2eb0 | 6658 | { |
63ee5404 | 6659 | gfc_add_modify (&cleanup, recurcheckvar, logical_false_node); |
d74d8807 | 6660 | recurcheckvar = NULL; |
cf7d2eb0 | 6661 | } |
5046aff5 | 6662 | |
8b198102 FXC |
6663 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6664 | if (ieee) | |
3b7ea188 | 6665 | gfc_restore_fp_state (&cleanup, fpstate); |
8b198102 | 6666 | |
d74d8807 DK |
6667 | /* Finish the function body and add init and cleanup code. */ |
6668 | tmp = gfc_finish_block (&body); | |
6669 | gfc_start_wrapped_block (&try_block, tmp); | |
6670 | /* Add code to create and cleanup arrays. */ | |
6671 | gfc_trans_deferred_vars (sym, &try_block); | |
6672 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6673 | gfc_finish_block (&cleanup)); | |
6de9cd9a DN |
6674 | |
6675 | /* Add all the decls we created during processing. */ | |
79a592e3 | 6676 | decl = nreverse (saved_function_decls); |
6de9cd9a DN |
6677 | while (decl) |
6678 | { | |
6679 | tree next; | |
6680 | ||
910ad8de NF |
6681 | next = DECL_CHAIN (decl); |
6682 | DECL_CHAIN (decl) = NULL_TREE; | |
755634e6 | 6683 | pushdecl (decl); |
6de9cd9a DN |
6684 | decl = next; |
6685 | } | |
6686 | saved_function_decls = NULL_TREE; | |
6687 | ||
d74d8807 | 6688 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
c7c79a09 | 6689 | decl = getdecls (); |
6de9cd9a DN |
6690 | |
6691 | /* Finish off this function and send it for code generation. */ | |
87a60f68 | 6692 | poplevel (1, 1); |
6de9cd9a DN |
6693 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6694 | ||
c7c79a09 JJ |
6695 | DECL_SAVED_TREE (fndecl) |
6696 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6697 | DECL_INITIAL (fndecl)); | |
6698 | ||
77f2a970 JJ |
6699 | if (nonlocal_dummy_decls) |
6700 | { | |
6701 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6702 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
6e2830c3 | 6703 | delete nonlocal_dummy_decl_pset; |
77f2a970 JJ |
6704 | nonlocal_dummy_decls = NULL; |
6705 | nonlocal_dummy_decl_pset = NULL; | |
6706 | } | |
6707 | ||
6de9cd9a DN |
6708 | /* Output the GENERIC tree. */ |
6709 | dump_function (TDI_original, fndecl); | |
6710 | ||
6711 | /* Store the end of the function, so that we get good line number | |
6712 | info for the epilogue. */ | |
6713 | cfun->function_end_locus = input_location; | |
6714 | ||
6715 | /* We're leaving the context of this function, so zap cfun. | |
6716 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6717 | tree_rest_of_compilation. */ | |
db2960f4 | 6718 | set_cfun (NULL); |
6de9cd9a DN |
6719 | |
6720 | if (old_context) | |
6721 | { | |
6722 | pop_function_context (); | |
6723 | saved_function_decls = saved_parent_function_decls; | |
6724 | } | |
6725 | current_function_decl = old_context; | |
6726 | ||
15682f24 MJ |
6727 | if (decl_function_context (fndecl)) |
6728 | { | |
6729 | /* Register this function with cgraph just far enough to get it | |
6730 | added to our parent's nested function list. | |
6731 | If there are static coarrays in this function, the nested _caf_init | |
6732 | function has already called cgraph_create_node, which also created | |
6733 | the cgraph node for this function. */ | |
f19626cf | 6734 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
e7980add | 6735 | (void) cgraph_node::get_create (fndecl); |
15682f24 | 6736 | } |
6de9cd9a | 6737 | else |
3dafb85c | 6738 | cgraph_node::finalize_function (fndecl, true); |
a64f5186 JJ |
6739 | |
6740 | gfc_trans_use_stmts (ns); | |
bd11e37d | 6741 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
092231a8 TB |
6742 | |
6743 | if (sym->attr.is_main_program) | |
6744 | create_main_function (fndecl); | |
d74d8807 DK |
6745 | |
6746 | current_procedure_symbol = previous_procedure_symbol; | |
6de9cd9a DN |
6747 | } |
6748 | ||
092231a8 | 6749 | |
6de9cd9a DN |
6750 | void |
6751 | gfc_generate_constructors (void) | |
6752 | { | |
6e45f57b | 6753 | gcc_assert (gfc_static_ctors == NULL_TREE); |
6de9cd9a DN |
6754 | #if 0 |
6755 | tree fnname; | |
6756 | tree type; | |
6757 | tree fndecl; | |
6758 | tree decl; | |
6759 | tree tmp; | |
6760 | ||
6761 | if (gfc_static_ctors == NULL_TREE) | |
6762 | return; | |
6763 | ||
5880f14f | 6764 | fnname = get_file_function_name ("I"); |
b64fca63 | 6765 | type = build_function_type_list (void_type_node, NULL_TREE); |
6de9cd9a | 6766 | |
c2255bc4 AH |
6767 | fndecl = build_decl (input_location, |
6768 | FUNCTION_DECL, fnname, type); | |
6de9cd9a DN |
6769 | TREE_PUBLIC (fndecl) = 1; |
6770 | ||
c2255bc4 AH |
6771 | decl = build_decl (input_location, |
6772 | RESULT_DECL, NULL_TREE, void_type_node); | |
b785f485 RH |
6773 | DECL_ARTIFICIAL (decl) = 1; |
6774 | DECL_IGNORED_P (decl) = 1; | |
6de9cd9a DN |
6775 | DECL_CONTEXT (decl) = fndecl; |
6776 | DECL_RESULT (fndecl) = decl; | |
6777 | ||
6778 | pushdecl (fndecl); | |
6779 | ||
6780 | current_function_decl = fndecl; | |
6781 | ||
0e6df31e | 6782 | rest_of_decl_compilation (fndecl, 1, 0); |
6de9cd9a | 6783 | |
0e6df31e | 6784 | make_decl_rtl (fndecl); |
6de9cd9a | 6785 | |
b6b27e98 | 6786 | allocate_struct_function (fndecl, false); |
6de9cd9a | 6787 | |
87a60f68 | 6788 | pushlevel (); |
6de9cd9a DN |
6789 | |
6790 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6791 | { | |
db3927fb AH |
6792 | tmp = build_call_expr_loc (input_location, |
6793 | TREE_VALUE (gfc_static_ctors), 0); | |
c2255bc4 | 6794 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
6de9cd9a DN |
6795 | } |
6796 | ||
c7c79a09 | 6797 | decl = getdecls (); |
87a60f68 | 6798 | poplevel (1, 1); |
6de9cd9a DN |
6799 | |
6800 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
c7c79a09 JJ |
6801 | DECL_SAVED_TREE (fndecl) |
6802 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6803 | DECL_INITIAL (fndecl)); | |
6de9cd9a DN |
6804 | |
6805 | free_after_parsing (cfun); | |
6806 | free_after_compilation (cfun); | |
6807 | ||
0f0377f6 | 6808 | tree_rest_of_compilation (fndecl); |
6de9cd9a DN |
6809 | |
6810 | current_function_decl = NULL_TREE; | |
6811 | #endif | |
6812 | } | |
6813 | ||
0de4325e TS |
6814 | /* Translates a BLOCK DATA program unit. This means emitting the |
6815 | commons contained therein plus their initializations. We also emit | |
6816 | a globally visible symbol to make sure that each BLOCK DATA program | |
6817 | unit remains unique. */ | |
6818 | ||
6819 | void | |
6820 | gfc_generate_block_data (gfc_namespace * ns) | |
6821 | { | |
6822 | tree decl; | |
6823 | tree id; | |
6824 | ||
c8cc8542 PB |
6825 | /* Tell the backend the source location of the block data. */ |
6826 | if (ns->proc_name) | |
6827 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6828 | else | |
6829 | gfc_set_backend_locus (&gfc_current_locus); | |
6830 | ||
6831 | /* Process the DATA statements. */ | |
0de4325e TS |
6832 | gfc_trans_common (ns); |
6833 | ||
c8cc8542 PB |
6834 | /* Create a global symbol with the mane of the block data. This is to |
6835 | generate linker errors if the same name is used twice. It is never | |
6836 | really used. */ | |
0de4325e TS |
6837 | if (ns->proc_name) |
6838 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6839 | else | |
6840 | id = get_identifier ("__BLOCK_DATA__"); | |
6841 | ||
c2255bc4 AH |
6842 | decl = build_decl (input_location, |
6843 | VAR_DECL, id, gfc_array_index_type); | |
0de4325e TS |
6844 | TREE_PUBLIC (decl) = 1; |
6845 | TREE_STATIC (decl) = 1; | |
a64f5186 | 6846 | DECL_IGNORED_P (decl) = 1; |
0de4325e TS |
6847 | |
6848 | pushdecl (decl); | |
6849 | rest_of_decl_compilation (decl, 1, 0); | |
6850 | } | |
6851 | ||
83d890b9 | 6852 | |
9abe5e56 DK |
6853 | /* Process the local variables of a BLOCK construct. */ |
6854 | ||
6855 | void | |
6312ef45 | 6856 | gfc_process_block_locals (gfc_namespace* ns) |
9abe5e56 DK |
6857 | { |
6858 | tree decl; | |
6859 | ||
6860 | gcc_assert (saved_local_decls == NULL_TREE); | |
b8ff4e88 TB |
6861 | has_coarray_vars = false; |
6862 | ||
9abe5e56 DK |
6863 | generate_local_vars (ns); |
6864 | ||
f19626cf | 6865 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
6866 | generate_coarray_init (ns); |
6867 | ||
79a592e3 | 6868 | decl = nreverse (saved_local_decls); |
9abe5e56 DK |
6869 | while (decl) |
6870 | { | |
6871 | tree next; | |
6872 | ||
910ad8de NF |
6873 | next = DECL_CHAIN (decl); |
6874 | DECL_CHAIN (decl) = NULL_TREE; | |
9abe5e56 DK |
6875 | pushdecl (decl); |
6876 | decl = next; | |
6877 | } | |
6878 | saved_local_decls = NULL_TREE; | |
6879 | } | |
6880 | ||
6881 | ||
6de9cd9a | 6882 | #include "gt-fortran-trans-decl.h" |