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4ee9c684 | 1 | /* Backend function setup |
fbd26352 | 2 | Copyright (C) 2002-2019 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 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 | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 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. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 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" | |
4cba6f60 | 26 | #include "target.h" |
27 | #include "function.h" | |
28 | #include "tree.h" | |
dc8078a3 | 29 | #include "gfortran.h" |
4cba6f60 | 30 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
31 | #include "trans.h" | |
32 | #include "stringpool.h" | |
33 | #include "cgraph.h" | |
b20a8bb4 | 34 | #include "fold-const.h" |
9ed99284 | 35 | #include "stor-layout.h" |
36 | #include "varasm.h" | |
37 | #include "attribs.h" | |
930c75f4 | 38 | #include "dumpfile.h" |
7cbc820e | 39 | #include "toplev.h" /* For announce_function. */ |
df4d540f | 40 | #include "debug.h" |
126387b5 | 41 | #include "constructor.h" |
4ee9c684 | 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" | |
7c1a9598 | 47 | #include "gomp-constants.h" |
1ec957b0 | 48 | #include "gimplify.h" |
4ee9c684 | 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; | |
c750cc52 | 56 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 57 | |
4ee9c684 | 58 | |
59 | /* Holds the variable DECLs for the current function. */ | |
60 | ||
d4163395 | 61 | static GTY(()) tree saved_function_decls; |
62 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 63 | |
6a7084d7 | 64 | /* Holds the variable DECLs that are locals. */ |
65 | ||
66 | static GTY(()) tree saved_local_decls; | |
67 | ||
4ee9c684 | 68 | /* The namespace of the module we're currently generating. Only used while |
69 | outputting decls for module variables. Do not rely on this being set. */ | |
70 | ||
71 | static gfc_namespace *module_namespace; | |
72 | ||
89ac8ba1 | 73 | /* The currently processed procedure symbol. */ |
74 | static gfc_symbol* current_procedure_symbol = NULL; | |
75 | ||
3adf245a | 76 | /* The currently processed module. */ |
77 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 78 | |
a961ca30 | 79 | /* With -fcoarray=lib: For generating the registering call |
80 | of static coarrays. */ | |
81 | static bool has_coarray_vars; | |
82 | static stmtblock_t caf_init_block; | |
83 | ||
84 | ||
4ee9c684 | 85 | /* List of static constructor functions. */ |
86 | ||
87 | tree gfc_static_ctors; | |
88 | ||
89 | ||
d566c3e0 | 90 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
91 | static int seen_ieee_symbol; | |
92 | ||
4ee9c684 | 93 | /* Function declarations for builtin library functions. */ |
94 | ||
4ee9c684 | 95 | tree gfor_fndecl_pause_numeric; |
96 | tree gfor_fndecl_pause_string; | |
97 | tree gfor_fndecl_stop_numeric; | |
98 | tree gfor_fndecl_stop_string; | |
070cc790 | 99 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 100 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 101 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 102 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 103 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 104 | tree gfor_fndecl_os_error; |
50ad5fa2 | 105 | tree gfor_fndecl_generate_error; |
7257a5d2 | 106 | tree gfor_fndecl_set_args; |
8c84a5de | 107 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 108 | tree gfor_fndecl_set_options; |
15774a8b | 109 | tree gfor_fndecl_set_convert; |
f23886ab | 110 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 111 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 112 | tree gfor_fndecl_ctime; |
113 | tree gfor_fndecl_fdate; | |
dbc97b88 | 114 | tree gfor_fndecl_ttynam; |
4ee9c684 | 115 | tree gfor_fndecl_in_pack; |
116 | tree gfor_fndecl_in_unpack; | |
117 | tree gfor_fndecl_associated; | |
72ce5390 | 118 | tree gfor_fndecl_system_clock4; |
119 | tree gfor_fndecl_system_clock8; | |
d566c3e0 | 120 | tree gfor_fndecl_ieee_procedure_entry; |
121 | tree gfor_fndecl_ieee_procedure_exit; | |
4ee9c684 | 122 | |
70b5944a | 123 | /* Coarray run-time library function decls. */ |
124 | tree gfor_fndecl_caf_init; | |
125 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 126 | tree gfor_fndecl_caf_this_image; |
127 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 128 | tree gfor_fndecl_caf_register; |
d0d776fb | 129 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 130 | tree gfor_fndecl_caf_get; |
131 | tree gfor_fndecl_caf_send; | |
132 | tree gfor_fndecl_caf_sendget; | |
eee0cf09 | 133 | tree gfor_fndecl_caf_get_by_ref; |
134 | tree gfor_fndecl_caf_send_by_ref; | |
135 | tree gfor_fndecl_caf_sendget_by_ref; | |
70b5944a | 136 | tree gfor_fndecl_caf_sync_all; |
71cf3ae6 | 137 | tree gfor_fndecl_caf_sync_memory; |
70b5944a | 138 | tree gfor_fndecl_caf_sync_images; |
ba4d9b7e | 139 | tree gfor_fndecl_caf_stop_str; |
140 | tree gfor_fndecl_caf_stop_numeric; | |
70b5944a | 141 | tree gfor_fndecl_caf_error_stop; |
142 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 143 | tree gfor_fndecl_caf_atomic_def; |
144 | tree gfor_fndecl_caf_atomic_ref; | |
145 | tree gfor_fndecl_caf_atomic_cas; | |
146 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 147 | tree gfor_fndecl_caf_lock; |
148 | tree gfor_fndecl_caf_unlock; | |
bd47f0bc | 149 | tree gfor_fndecl_caf_event_post; |
150 | tree gfor_fndecl_caf_event_wait; | |
151 | tree gfor_fndecl_caf_event_query; | |
d9ca273e | 152 | tree gfor_fndecl_caf_fail_image; |
153 | tree gfor_fndecl_caf_failed_images; | |
154 | tree gfor_fndecl_caf_image_status; | |
155 | tree gfor_fndecl_caf_stopped_images; | |
6d3cbc0c | 156 | tree gfor_fndecl_caf_form_team; |
157 | tree gfor_fndecl_caf_change_team; | |
158 | tree gfor_fndecl_caf_end_team; | |
159 | tree gfor_fndecl_caf_sync_team; | |
160 | tree gfor_fndecl_caf_get_team; | |
161 | tree gfor_fndecl_caf_team_number; | |
52306a18 | 162 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 163 | tree gfor_fndecl_co_max; |
164 | tree gfor_fndecl_co_min; | |
e39efcef | 165 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 166 | tree gfor_fndecl_co_sum; |
3d2aa0e8 | 167 | tree gfor_fndecl_caf_is_present; |
70b5944a | 168 | |
70b5944a | 169 | |
4ee9c684 | 170 | /* Math functions. Many other math functions are handled in |
171 | trans-intrinsic.c. */ | |
172 | ||
920e54ef | 173 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 174 | tree gfor_fndecl_math_ishftc4; |
175 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 176 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 177 | |
178 | ||
179 | /* String functions. */ | |
180 | ||
4ee9c684 | 181 | tree gfor_fndecl_compare_string; |
182 | tree gfor_fndecl_concat_string; | |
183 | tree gfor_fndecl_string_len_trim; | |
184 | tree gfor_fndecl_string_index; | |
185 | tree gfor_fndecl_string_scan; | |
186 | tree gfor_fndecl_string_verify; | |
187 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 188 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 189 | tree gfor_fndecl_adjustl; |
190 | tree gfor_fndecl_adjustr; | |
b44437b9 | 191 | tree gfor_fndecl_select_string; |
40b806de | 192 | tree gfor_fndecl_compare_string_char4; |
193 | tree gfor_fndecl_concat_string_char4; | |
194 | tree gfor_fndecl_string_len_trim_char4; | |
195 | tree gfor_fndecl_string_index_char4; | |
196 | tree gfor_fndecl_string_scan_char4; | |
197 | tree gfor_fndecl_string_verify_char4; | |
198 | tree gfor_fndecl_string_trim_char4; | |
199 | tree gfor_fndecl_string_minmax_char4; | |
200 | tree gfor_fndecl_adjustl_char4; | |
201 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 202 | tree gfor_fndecl_select_string_char4; |
203 | ||
204 | ||
205 | /* Conversion between character kinds. */ | |
206 | tree gfor_fndecl_convert_char1_to_char4; | |
207 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 208 | |
209 | ||
210 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 211 | tree gfor_fndecl_size0; |
212 | tree gfor_fndecl_size1; | |
9b057c29 | 213 | tree gfor_fndecl_iargc; |
92c9ff97 | 214 | tree gfor_fndecl_kill; |
215 | tree gfor_fndecl_kill_sub; | |
216 | ||
4ee9c684 | 217 | |
59e2a584 | 218 | /* Intrinsic functions implemented in Fortran. */ |
219 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 220 | tree gfor_fndecl_si_kind; |
221 | tree gfor_fndecl_sr_kind; | |
222 | ||
4e8e57b0 | 223 | /* BLAS gemm functions. */ |
224 | tree gfor_fndecl_sgemm; | |
225 | tree gfor_fndecl_dgemm; | |
226 | tree gfor_fndecl_cgemm; | |
227 | tree gfor_fndecl_zgemm; | |
228 | ||
0ecc062b | 229 | /* RANDOM_INIT function. */ |
230 | tree gfor_fndecl_random_init; | |
4ee9c684 | 231 | |
232 | static void | |
233 | gfc_add_decl_to_parent_function (tree decl) | |
234 | { | |
22d678e8 | 235 | gcc_assert (decl); |
4ee9c684 | 236 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
237 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 238 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 239 | saved_parent_function_decls = decl; |
240 | } | |
241 | ||
242 | void | |
243 | gfc_add_decl_to_function (tree decl) | |
244 | { | |
22d678e8 | 245 | gcc_assert (decl); |
4ee9c684 | 246 | TREE_USED (decl) = 1; |
247 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 248 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 249 | saved_function_decls = decl; |
250 | } | |
251 | ||
6a7084d7 | 252 | static void |
253 | add_decl_as_local (tree decl) | |
254 | { | |
255 | gcc_assert (decl); | |
256 | TREE_USED (decl) = 1; | |
257 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 258 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 259 | saved_local_decls = decl; |
260 | } | |
261 | ||
4ee9c684 | 262 | |
b797d6d3 | 263 | /* Build a backend label declaration. Set TREE_USED for named labels. |
264 | The context of the label is always the current_function_decl. All | |
265 | labels are marked artificial. */ | |
4ee9c684 | 266 | |
267 | tree | |
268 | gfc_build_label_decl (tree label_id) | |
269 | { | |
270 | /* 2^32 temporaries should be enough. */ | |
271 | static unsigned int tmp_num = 1; | |
272 | tree label_decl; | |
273 | char *label_name; | |
274 | ||
275 | if (label_id == NULL_TREE) | |
276 | { | |
277 | /* Build an internal label name. */ | |
278 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
279 | label_id = get_identifier (label_name); | |
280 | } | |
281 | else | |
282 | label_name = NULL; | |
283 | ||
284 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 285 | label_decl = build_decl (input_location, |
286 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 287 | DECL_CONTEXT (label_decl) = current_function_decl; |
adc78298 | 288 | SET_DECL_MODE (label_decl, VOIDmode); |
4ee9c684 | 289 | |
b797d6d3 | 290 | /* We always define the label as used, even if the original source |
291 | file never references the label. We don't want all kinds of | |
292 | spurious warnings for old-style Fortran code with too many | |
293 | labels. */ | |
294 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 295 | |
b797d6d3 | 296 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 297 | return label_decl; |
298 | } | |
299 | ||
300 | ||
b31f705b | 301 | /* Set the backend source location of a decl. */ |
302 | ||
303 | void | |
304 | gfc_set_decl_location (tree decl, locus * loc) | |
305 | { | |
b31f705b | 306 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 307 | } |
308 | ||
309 | ||
4ee9c684 | 310 | /* Return the backend label declaration for a given label structure, |
311 | or create it if it doesn't exist yet. */ | |
312 | ||
313 | tree | |
314 | gfc_get_label_decl (gfc_st_label * lp) | |
315 | { | |
4ee9c684 | 316 | if (lp->backend_decl) |
317 | return lp->backend_decl; | |
318 | else | |
319 | { | |
320 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
321 | tree label_decl; | |
322 | ||
323 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 324 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 325 | |
326 | /* Build a mangled name for the label. */ | |
327 | sprintf (label_name, "__label_%.6d", lp->value); | |
328 | ||
329 | /* Build the LABEL_DECL node. */ | |
330 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
331 | ||
332 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 333 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 334 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 335 | else |
336 | DECL_ARTIFICIAL (label_decl) = 1; | |
337 | ||
338 | /* Store the label in the label list and return the LABEL_DECL. */ | |
339 | lp->backend_decl = label_decl; | |
340 | return label_decl; | |
341 | } | |
342 | } | |
343 | ||
344 | ||
345 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
346 | ||
347 | static tree | |
348 | gfc_sym_identifier (gfc_symbol * sym) | |
349 | { | |
0509d0ee | 350 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
351 | return (get_identifier ("MAIN__")); | |
352 | else | |
353 | return (get_identifier (sym->name)); | |
4ee9c684 | 354 | } |
355 | ||
356 | ||
357 | /* Construct mangled name from symbol name. */ | |
358 | ||
359 | static tree | |
360 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
361 | { | |
362 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
363 | ||
c5d33754 | 364 | /* Prevent the mangling of identifiers that have an assigned |
365 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 366 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
367 | return get_identifier (sym->binding_label); | |
a90fe829 | 368 | |
8b7e5587 | 369 | if (!sym->fn_result_spec) |
370 | { | |
371 | if (sym->module == NULL) | |
372 | return gfc_sym_identifier (sym); | |
373 | else | |
374 | { | |
375 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); | |
376 | return get_identifier (name); | |
377 | } | |
378 | } | |
4ee9c684 | 379 | else |
380 | { | |
8b7e5587 | 381 | /* This is an entity that is actually local to a module procedure |
382 | that appears in the result specification expression. Since | |
383 | sym->module will be a zero length string, we use ns->proc_name | |
384 | instead. */ | |
385 | if (sym->ns->proc_name && sym->ns->proc_name->module) | |
386 | { | |
387 | snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s", | |
388 | sym->ns->proc_name->module, | |
389 | sym->ns->proc_name->name, | |
390 | sym->name); | |
391 | return get_identifier (name); | |
392 | } | |
393 | else | |
394 | { | |
395 | snprintf (name, sizeof name, "__%s_PROC_%s", | |
396 | sym->ns->proc_name->name, sym->name); | |
397 | return get_identifier (name); | |
398 | } | |
4ee9c684 | 399 | } |
400 | } | |
401 | ||
402 | ||
403 | /* Construct mangled function name from symbol name. */ | |
404 | ||
405 | static tree | |
406 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
407 | { | |
408 | int has_underscore; | |
409 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
410 | ||
c5d33754 | 411 | /* It may be possible to simply use the binding label if it's |
412 | provided, and remove the other checks. Then we could use it | |
413 | for other things if we wished. */ | |
414 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 415 | sym->binding_label) |
c5d33754 | 416 | /* use the binding label rather than the mangled name */ |
417 | return get_identifier (sym->binding_label); | |
418 | ||
4b8eb6ca | 419 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 420 | || (sym->module != NULL && (sym->attr.external |
421 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 422 | && !sym->attr.module_procedure) |
4ee9c684 | 423 | { |
a2f97da7 | 424 | /* Main program is mangled into MAIN__. */ |
425 | if (sym->attr.is_main_program) | |
426 | return get_identifier ("MAIN__"); | |
427 | ||
428 | /* Intrinsic procedures are never mangled. */ | |
429 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 430 | return get_identifier (sym->name); |
431 | ||
829d7a08 | 432 | if (flag_underscoring) |
4ee9c684 | 433 | { |
434 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 435 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 436 | snprintf (name, sizeof name, "%s__", sym->name); |
437 | else | |
438 | snprintf (name, sizeof name, "%s_", sym->name); | |
439 | return get_identifier (name); | |
440 | } | |
441 | else | |
442 | return get_identifier (sym->name); | |
443 | } | |
444 | else | |
445 | { | |
f08a3f6f | 446 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 447 | return get_identifier (name); |
448 | } | |
449 | } | |
450 | ||
451 | ||
1236e28b | 452 | void |
453 | gfc_set_decl_assembler_name (tree decl, tree name) | |
454 | { | |
455 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
456 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
457 | } | |
458 | ||
459 | ||
5ed82495 | 460 | /* Returns true if a variable of specified size should go on the stack. */ |
461 | ||
462 | int | |
463 | gfc_can_put_var_on_stack (tree size) | |
464 | { | |
465 | unsigned HOST_WIDE_INT low; | |
466 | ||
467 | if (!INTEGER_CST_P (size)) | |
468 | return 0; | |
469 | ||
eb106faf | 470 | if (flag_max_stack_var_size < 0) |
5ed82495 | 471 | return 1; |
472 | ||
e1d65c9f | 473 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 474 | return 0; |
475 | ||
f9ae6f95 | 476 | low = TREE_INT_CST_LOW (size); |
eb106faf | 477 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 478 | return 0; |
479 | ||
480 | /* TODO: Set a per-function stack size limit. */ | |
481 | ||
482 | return 1; | |
483 | } | |
484 | ||
485 | ||
b7bf3f81 | 486 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
487 | an expression involving its corresponding pointer. There are | |
488 | 2 cases; one for variable size arrays, and one for everything else, | |
489 | because variable-sized arrays require one fewer level of | |
490 | indirection. */ | |
491 | ||
492 | static void | |
493 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
494 | { | |
495 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
496 | tree value; | |
497 | ||
498 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 499 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 500 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
501 | ptr_decl); | |
b7bf3f81 | 502 | |
503 | /* Check to see if we're dealing with a variable-sized array. */ | |
504 | if (sym->attr.dimension | |
a90fe829 | 505 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
506 | { | |
942043f8 | 507 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 508 | them here. */ |
509 | value = convert (TREE_TYPE (decl), ptr_decl); | |
510 | } | |
511 | else | |
512 | { | |
513 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
514 | ptr_decl); | |
389dd41b | 515 | value = build_fold_indirect_ref_loc (input_location, |
516 | ptr_decl); | |
b7bf3f81 | 517 | } |
518 | ||
519 | SET_DECL_VALUE_EXPR (decl, value); | |
520 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 521 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 522 | } |
523 | ||
524 | ||
b9c7fce7 | 525 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 526 | |
527 | static void | |
b9c7fce7 | 528 | gfc_finish_decl (tree decl) |
4ee9c684 | 529 | { |
b9c7fce7 | 530 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
531 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 532 | |
fe732a9b | 533 | if (!VAR_P (decl)) |
b9c7fce7 | 534 | return; |
4ee9c684 | 535 | |
b9c7fce7 | 536 | if (DECL_SIZE (decl) == NULL_TREE |
537 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
538 | layout_decl (decl, 0); | |
539 | ||
540 | /* A few consistency checks. */ | |
541 | /* A static variable with an incomplete type is an error if it is | |
542 | initialized. Also if it is not file scope. Otherwise, let it | |
543 | through, but if it is not `extern' then it may cause an error | |
544 | message later. */ | |
545 | /* An automatic variable with an incomplete type is an error. */ | |
546 | ||
547 | /* We should know the storage size. */ | |
548 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 549 | || (TREE_STATIC (decl) |
b9c7fce7 | 550 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
551 | : DECL_EXTERNAL (decl))); | |
552 | ||
553 | /* The storage size should be constant. */ | |
554 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
555 | || !DECL_SIZE (decl) | |
556 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 557 | } |
558 | ||
559 | ||
cf5f881f | 560 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
561 | ||
562 | void | |
563 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
564 | { | |
565 | if (!attr->dimension && !attr->codimension) | |
566 | { | |
567 | /* Handle scalar allocatable variables. */ | |
568 | if (attr->allocatable) | |
569 | { | |
570 | gfc_allocate_lang_decl (decl); | |
571 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
572 | } | |
573 | /* Handle scalar pointer variables. */ | |
574 | if (attr->pointer) | |
575 | { | |
576 | gfc_allocate_lang_decl (decl); | |
577 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
578 | } | |
579 | } | |
580 | } | |
581 | ||
582 | ||
4ee9c684 | 583 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
584 | ||
585 | static void | |
586 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
587 | { | |
c1977dbe | 588 | tree new_type; |
b549d2a5 | 589 | |
b7bf3f81 | 590 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 591 | if (sym->attr.cray_pointee) |
b7bf3f81 | 592 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 593 | |
845a9546 | 594 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
595 | This is the equivalent of the TARGET variables. | |
596 | We also need to set this if the variable is passed by reference in a | |
597 | CALL statement. */ | |
4ee9c684 | 598 | if (sym->attr.target) |
599 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 600 | |
4ee9c684 | 601 | /* If it wasn't used we wouldn't be getting it. */ |
602 | TREE_USED (decl) = 1; | |
603 | ||
7415cfe4 | 604 | if (sym->attr.flavor == FL_PARAMETER |
605 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
606 | TREE_READONLY (decl) = 1; | |
607 | ||
4ee9c684 | 608 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
609 | because this would add them to the current scope rather than the | |
610 | function scope. */ | |
611 | if (current_function_decl != NULL_TREE) | |
612 | { | |
7c0ba894 | 613 | if (sym->ns->proc_name |
614 | && (sym->ns->proc_name->backend_decl == current_function_decl | |
615 | || sym->result == sym)) | |
4ee9c684 | 616 | gfc_add_decl_to_function (decl); |
7c0ba894 | 617 | else if (sym->ns->proc_name |
618 | && sym->ns->proc_name->attr.flavor == FL_LABEL) | |
6a7084d7 | 619 | /* This is a BLOCK construct. */ |
620 | add_decl_as_local (decl); | |
4ee9c684 | 621 | else |
622 | gfc_add_decl_to_parent_function (decl); | |
623 | } | |
624 | ||
b7bf3f81 | 625 | if (sym->attr.cray_pointee) |
626 | return; | |
627 | ||
c5cb468c | 628 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 629 | { |
630 | /* We need to put variables that are bind(c) into the common | |
631 | segment of the object file, because this is what C would do. | |
632 | gfortran would typically put them in either the BSS or | |
633 | initialized data segments, and only mark them as common if | |
634 | they were part of common blocks. However, if they are not put | |
ea657963 | 635 | into common space, then C cannot initialize global Fortran |
c5d33754 | 636 | variables that it interoperates with and the draft says that |
637 | either Fortran or C should be able to initialize it (but not | |
638 | both, of course.) (J3/04-007, section 15.3). */ | |
639 | TREE_PUBLIC(decl) = 1; | |
640 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 641 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
642 | { | |
643 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
644 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
645 | } | |
c5d33754 | 646 | } |
a90fe829 | 647 | |
4ee9c684 | 648 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 649 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 650 | { |
651 | DECL_EXTERNAL (decl) = 1; | |
652 | TREE_PUBLIC (decl) = 1; | |
653 | } | |
8b7e5587 | 654 | else if (sym->fn_result_spec && !sym->ns->proc_name->module) |
655 | { | |
656 | ||
657 | if (sym->ns->proc_name->attr.if_source != IFSRC_DECL) | |
658 | DECL_EXTERNAL (decl) = 1; | |
659 | else | |
660 | TREE_STATIC (decl) = 1; | |
661 | ||
662 | TREE_PUBLIC (decl) = 1; | |
663 | } | |
4f0fae8e | 664 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 665 | { |
6b20224d | 666 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 667 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 668 | |
c8ddfd5d | 669 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 670 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 671 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
672 | { | |
673 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
674 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
675 | } | |
4ee9c684 | 676 | } |
677 | ||
f0d4969f | 678 | /* Derived types are a bit peculiar because of the possibility of |
679 | a default initializer; this must be applied each time the variable | |
680 | comes into scope it therefore need not be static. These variables | |
681 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 682 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 683 | SAVE_EXPLICIT. */ |
684 | if (!sym->attr.use_assoc | |
685 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 686 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 687 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 688 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 689 | TREE_STATIC (decl) = 1; |
ef814c81 | 690 | |
9f732c4e | 691 | /* If derived-type variables with DTIO procedures are not made static |
692 | some bits of code referencing them get optimized away. | |
693 | TODO Understand why this is so and fix it. */ | |
694 | if (!sym->attr.use_assoc | |
695 | && ((sym->ts.type == BT_DERIVED | |
696 | && sym->ts.u.derived->attr.has_dtio_procs) | |
697 | || (sym->ts.type == BT_CLASS | |
698 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
699 | TREE_STATIC (decl) = 1; | |
700 | ||
629c30bb | 701 | /* Treat asynchronous variables the same as volatile, for now. */ |
702 | if (sym->attr.volatile_ || sym->attr.asynchronous) | |
ef814c81 | 703 | { |
ef814c81 | 704 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 705 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 706 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
707 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 708 | } |
ef814c81 | 709 | |
4ee9c684 | 710 | /* Keep variables larger than max-stack-var-size off stack. */ |
7c0ba894 | 711 | if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive) |
712 | && !sym->attr.automatic | |
4ee9c684 | 713 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
a3f2c0e1 | 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)) | |
14eab729 | 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 | } | |
764f1175 | 759 | |
760 | /* Handle threadprivate variables. */ | |
9dda1f80 | 761 | if (sym->attr.threadprivate |
764f1175 | 762 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 763 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 764 | |
765 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 766 | } |
767 | ||
768 | ||
769 | /* Allocate the lang-specific part of a decl. */ | |
770 | ||
771 | void | |
772 | gfc_allocate_lang_decl (tree decl) | |
773 | { | |
cf5f881f | 774 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
775 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 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 | ||
9f5a9ac5 | 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 | ||
d7cd448a | 834 | /* Check for a symbol with the same name. */ |
9f5a9ac5 | 835 | if (gsym) |
836 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
837 | ||
838 | if (!s) | |
839 | { | |
840 | if (!gsym) | |
841 | { | |
842 | gsym = gfc_get_gsymbol (sym->module); | |
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 | } | |
d7cd448a | 851 | else if (gfc_fl_struct (sym->attr.flavor)) |
9f5a9ac5 | 852 | { |
c2958b6b | 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) | |
d7cd448a | 858 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c2958b6b | 859 | { |
860 | s = intr->sym; | |
861 | break; | |
862 | } | |
863 | } | |
864 | ||
d7cd448a | 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 | } | |
9f5a9ac5 | 882 | gfc_copy_dt_decls_ifequal (s, sym, true); |
883 | return true; | |
884 | } | |
885 | else if (s->backend_decl) | |
886 | { | |
85ec2f13 | 887 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 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 | ||
4ee9c684 | 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; | |
7b82374f | 926 | gfc_namespace* procns; |
c6793847 | 927 | symbol_attribute *array_attr; |
928 | gfc_array_spec *as; | |
929 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 930 | |
931 | type = TREE_TYPE (decl); | |
c6793847 | 932 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
933 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 934 | |
935 | /* We just use the descriptor, if there is one. */ | |
936 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
937 | return; | |
938 | ||
22d678e8 | 939 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 940 | procns = gfc_find_proc_namespace (sym->ns); |
941 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 942 | && !sym->attr.contained; |
943 | ||
c6793847 | 944 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
945 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 946 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
947 | { | |
948 | tree token; | |
ac36faf0 | 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); | |
3adf245a | 960 | if (sym->attr.use_assoc) |
961 | DECL_EXTERNAL (token) = 1; | |
962 | else | |
963 | TREE_STATIC (token) = 1; | |
964 | ||
c8ddfd5d | 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 | } | |
ac36faf0 | 972 | } |
973 | else | |
3adf245a | 974 | { |
975 | token = gfc_create_var_np (token_type, "caf_token"); | |
976 | TREE_STATIC (token) = 1; | |
977 | } | |
a961ca30 | 978 | |
a961ca30 | 979 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
980 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 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 | } | |
13feeaec | 989 | else if (sym->attr.host_assoc |
990 | && TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
991 | != TRANSLATION_UNIT_DECL) | |
1dbd61ab | 992 | gfc_add_decl_to_parent_function (token); |
3adf245a | 993 | else |
994 | gfc_add_decl_to_function (token); | |
a961ca30 | 995 | } |
996 | ||
4ee9c684 | 997 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
998 | { | |
999 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 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 | } | |
9ca15c9b | 1004 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 1005 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 1006 | && (as->type != AS_ASSUMED_SIZE |
1007 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 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 | } | |
4ee9c684 | 1012 | |
1013 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 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 | } | |
4ee9c684 | 1018 | } |
076094b7 | 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 | } | |
4ee9c684 | 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"); | |
86254bbf | 1039 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
1040 | ||
4ee9c684 | 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 | } | |
d4163395 | 1046 | |
1047 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 1048 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 1049 | { |
1050 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
1051 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
1052 | } | |
d4163395 | 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 | ||
fd779e1d | 1066 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1067 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 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 | } | |
6cf159a6 | 1073 | |
3fe3b7ca | 1074 | if (TYPE_NAME (type) != NULL_TREE && as->rank > 0 |
c6793847 | 1075 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
fe732a9b | 1076 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
6cf159a6 | 1077 | { |
1078 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1079 | ||
c6793847 | 1080 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 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 | ||
c6793847 | 1094 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 1095 | { |
7130ec9d | 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); | |
6cf159a6 | 1100 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 1101 | /* Ensure the bound variables aren't optimized out at -O0. |
1102 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 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. */ | |
fe732a9b | 1106 | if (lbound |
1107 | && VAR_P (lbound) | |
1108 | && DECL_ARTIFICIAL (lbound) | |
1109 | && DECL_IGNORED_P (lbound)) | |
7130ec9d | 1110 | { |
1111 | if (DECL_NAME (lbound) | |
1112 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1113 | "lbound") != 0) | |
84bfaaeb | 1114 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 1115 | DECL_IGNORED_P (lbound) = 0; |
1116 | } | |
fe732a9b | 1117 | if (ubound |
1118 | && VAR_P (ubound) | |
1119 | && DECL_ARTIFICIAL (ubound) | |
1120 | && DECL_IGNORED_P (ubound)) | |
7130ec9d | 1121 | { |
1122 | if (DECL_NAME (ubound) | |
1123 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1124 | "ubound") != 0) | |
84bfaaeb | 1125 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1126 | DECL_IGNORED_P (ubound) = 0; |
1127 | } | |
6cf159a6 | 1128 | } |
e60a6f7b | 1129 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1130 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1131 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1132 | } | |
4ee9c684 | 1133 | } |
1134 | ||
1135 | ||
1136 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1137 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 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; | |
c6793847 | 1146 | symbol_attribute *array_attr; |
4ee9c684 | 1147 | char *name; |
3d8dea5a | 1148 | gfc_packed packed; |
4ee9c684 | 1149 | int n; |
1150 | bool known_size; | |
c6793847 | 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)) | |
4ee9c684 | 1165 | return dummy; |
1166 | ||
c6793847 | 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. */ | |
4ee9c684 | 1169 | if (sym->attr.result || sym->attr.dummy) |
1170 | gfc_defer_symbol_init (sym); | |
1171 | ||
c6793847 | 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. */ | |
22d678e8 | 1178 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1179 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1180 | |
f888a3fb | 1181 | /* Do we know the element size? */ |
4ee9c684 | 1182 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1183 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1184 | |
c6793847 | 1185 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1186 | { |
1187 | /* For descriptorless arrays with known element size the actual | |
1188 | argument is sufficient. */ | |
4ee9c684 | 1189 | gfc_build_qualified_array (dummy, sym); |
1190 | return dummy; | |
1191 | } | |
1192 | ||
4ee9c684 | 1193 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1194 | { | |
cb8e3560 | 1195 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1196 | packed = PACKED_NO; |
3d235846 | 1197 | |
1198 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1199 | are not repacked. */ | |
829d7a08 | 1200 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1201 | { |
1202 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1203 | packed = PACKED_FULL; |
4ee9c684 | 1204 | } |
1205 | else | |
1206 | { | |
1207 | if (as->type == AS_EXPLICIT) | |
1208 | { | |
3d8dea5a | 1209 | packed = PACKED_FULL; |
4ee9c684 | 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)) | |
73bd65ab | 1216 | { |
1217 | packed = PACKED_PARTIAL; | |
1218 | break; | |
1219 | } | |
4ee9c684 | 1220 | } |
1221 | } | |
1222 | else | |
3d8dea5a | 1223 | packed = PACKED_PARTIAL; |
4ee9c684 | 1224 | } |
1225 | ||
c6793847 | 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, | |
e1b3b79b | 1231 | !sym->attr.target); |
4ee9c684 | 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. */ | |
d95efb59 | 1238 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1239 | sym->backend_decl = NULL_TREE; |
1240 | type = gfc_sym_type (sym); | |
3d8dea5a | 1241 | packed = PACKED_FULL; |
4ee9c684 | 1242 | } |
1243 | ||
1244 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1245 | decl = build_decl (input_location, |
1246 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1247 | |
1248 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1249 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1250 | TREE_PUBLIC (decl) = 0; |
1251 | TREE_STATIC (decl) = 0; | |
1252 | DECL_EXTERNAL (decl) = 0; | |
1253 | ||
a1f1e248 | 1254 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1255 | if (sym->attr.optional) | |
1256 | TREE_NO_WARNING (decl) = 1; | |
1257 | ||
4ee9c684 | 1258 | /* We should never get deferred shape arrays here. We used to because of |
1259 | frontend bugs. */ | |
c6793847 | 1260 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1261 | |
3d8dea5a | 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; | |
4ee9c684 | 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 | ||
4ee9c684 | 1285 | /* Return a constant or a variable to use as a string length. Does not |
1286 | add the decl to the current scope. */ | |
1287 | ||
1288 | static tree | |
1289 | gfc_create_string_length (gfc_symbol * sym) | |
1290 | { | |
eeebe20b | 1291 | gcc_assert (sym->ts.u.cl); |
1292 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1293 | |
eeebe20b | 1294 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1295 | { |
a4abf8a0 | 1296 | tree length; |
774bbd60 | 1297 | const char *name; |
4ee9c684 | 1298 | |
873f242d | 1299 | /* The string length variable shall be in static memory if it is either |
1300 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1301 | relevant is "len=:" - otherwise, it is either a constant length or | |
1302 | it is an automatic variable. */ | |
be125be0 | 1303 | bool static_length = sym->attr.save |
1304 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1305 | || (flag_max_stack_var_size == 0 |
873f242d | 1306 | && sym->ts.deferred && !sym->attr.dummy |
1307 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1308 | |
1309 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1310 | variables as some systems do not support the "." in the assembler name. | |
1311 | For nonstatic variables, the "." does not appear in assembler. */ | |
1312 | if (static_length) | |
1313 | { | |
1314 | if (sym->module) | |
1315 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1316 | sym->name); | |
1317 | else | |
1318 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1319 | } | |
1320 | else if (sym->module) | |
774bbd60 | 1321 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1322 | else | |
1323 | name = gfc_get_string (".%s", sym->name); | |
1324 | ||
e60a6f7b | 1325 | length = build_decl (input_location, |
1326 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1327 | gfc_charlen_type_node); |
4ee9c684 | 1328 | DECL_ARTIFICIAL (length) = 1; |
1329 | TREE_USED (length) = 1; | |
d4163395 | 1330 | if (sym->ns->proc_name->tlink != NULL) |
1331 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1332 | |
eeebe20b | 1333 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1334 | |
be125be0 | 1335 | if (static_length) |
774bbd60 | 1336 | TREE_STATIC (length) = 1; |
1337 | ||
1338 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1339 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1340 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1341 | } |
1342 | ||
eeebe20b | 1343 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1344 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1345 | } |
1346 | ||
c8f1568f | 1347 | /* If a variable is assigned a label, we add another two auxiliary |
1348 | variables. */ | |
1349 | ||
1350 | static void | |
1351 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1352 | { | |
1353 | tree addr; | |
1354 | tree length; | |
1355 | tree decl; | |
1356 | ||
1357 | gcc_assert (sym->backend_decl); | |
1358 | ||
1359 | decl = sym->backend_decl; | |
1360 | gfc_allocate_lang_decl (decl); | |
1361 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1362 | length = build_decl (input_location, |
1363 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1364 | gfc_charlen_type_node); |
e60a6f7b | 1365 | addr = build_decl (input_location, |
1366 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1367 | pvoid_type_node); |
1368 | gfc_finish_var_decl (length, sym); | |
1369 | gfc_finish_var_decl (addr, sym); | |
1370 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1371 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1372 | target label's address. Otherwise, value is the length of a format string | |
1373 | and ASSIGN_ADDR is its address. */ | |
1374 | if (TREE_STATIC (length)) | |
35bf1214 | 1375 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1376 | else |
1377 | gfc_defer_symbol_init (sym); | |
1378 | ||
1379 | GFC_DECL_STRING_LEN (decl) = length; | |
1380 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1381 | } | |
4ee9c684 | 1382 | |
36b0a1b0 | 1383 | |
1384 | static tree | |
1385 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1386 | { | |
1387 | unsigned id; | |
1388 | tree attr; | |
1389 | ||
1390 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1391 | if (sym_attr.ext_attr & (1 << id)) | |
1392 | { | |
1393 | attr = build_tree_list ( | |
1394 | get_identifier (ext_attr_list[id].middle_end_name), | |
1395 | NULL_TREE); | |
1396 | list = chainon (list, attr); | |
1397 | } | |
1398 | ||
44b49e6b | 1399 | if (sym_attr.omp_declare_target_link) |
1400 | list = tree_cons (get_identifier ("omp declare target link"), | |
1401 | NULL_TREE, list); | |
1402 | else if (sym_attr.omp_declare_target) | |
691447ab | 1403 | list = tree_cons (get_identifier ("omp declare target"), |
1404 | NULL_TREE, list); | |
1405 | ||
7c1a9598 | 1406 | if (sym_attr.oacc_function) |
1407 | { | |
1408 | tree dims = NULL_TREE; | |
1409 | int ix; | |
1410 | int level = sym_attr.oacc_function - 1; | |
1411 | ||
1412 | for (ix = GOMP_DIM_MAX; ix--;) | |
1413 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1414 | integer_zero_node, dims); | |
1415 | ||
1416 | list = tree_cons (get_identifier ("oacc function"), | |
1417 | dims, list); | |
1418 | } | |
1419 | ||
36b0a1b0 | 1420 | return list; |
1421 | } | |
1422 | ||
1423 | ||
802532b9 | 1424 | static void build_function_decl (gfc_symbol * sym, bool global); |
1425 | ||
1426 | ||
4ee9c684 | 1427 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1428 | exist. */ | |
1429 | ||
1430 | tree | |
1431 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1432 | { | |
1433 | tree decl; | |
1434 | tree length = NULL_TREE; | |
36b0a1b0 | 1435 | tree attributes; |
4ee9c684 | 1436 | int byref; |
cd2c99b8 | 1437 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1438 | bool fun_or_res; |
4ee9c684 | 1439 | |
0b5dc8b5 | 1440 | gcc_assert (sym->attr.referenced |
9e45357a | 1441 | || sym->attr.flavor == FL_PROCEDURE |
1442 | || sym->attr.use_assoc | |
4b8eb6ca | 1443 | || sym->attr.used_in_submodule |
9e45357a | 1444 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1445 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1446 | && sym->backend_decl)); | |
4ee9c684 | 1447 | |
ff70e443 | 1448 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1449 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1450 | else | |
1451 | byref = 0; | |
1452 | ||
09c509ed | 1453 | /* Make sure that the vtab for the declared type is completed. */ |
1454 | if (sym->ts.type == BT_CLASS) | |
1455 | { | |
50b4b37b | 1456 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1457 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1458 | { |
1459 | gfc_find_derived_vtab (c->ts.u.derived); | |
1460 | gfc_get_derived_type (sym->ts.u.derived); | |
1461 | } | |
09c509ed | 1462 | } |
1463 | ||
9d958d5b | 1464 | /* PDT parameterized array components and string_lengths must have the |
1465 | 'len' parameters substituted for the expressions appearing in the | |
1466 | declaration of the entity and memory allocated/deallocated. */ | |
1467 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1468 | && sym->param_list != NULL | |
1469 | && !(sym->attr.host_assoc || sym->attr.use_assoc || sym->attr.dummy)) | |
1470 | gfc_defer_symbol_init (sym); | |
1471 | ||
1472 | /* Dummy PDT 'len' parameters should be checked when they are explicit. */ | |
1473 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1474 | && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) | |
1475 | && sym->param_list != NULL | |
1476 | && sym->attr.dummy) | |
1477 | gfc_defer_symbol_init (sym); | |
1478 | ||
617125a6 | 1479 | /* All deferred character length procedures need to retain the backend |
1480 | decl, which is a pointer to the character length in the caller's | |
1481 | namespace and to declare a local character length. */ | |
1482 | if (!byref && sym->attr.function | |
1483 | && sym->ts.type == BT_CHARACTER | |
1484 | && sym->ts.deferred | |
1485 | && sym->ts.u.cl->passed_length == NULL | |
1486 | && sym->ts.u.cl->backend_decl | |
1487 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1488 | { | |
1489 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1490 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1491 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
617125a6 | 1492 | } |
1493 | ||
8b9eb27e | 1494 | fun_or_res = byref && (sym->attr.result |
1495 | || (sym->attr.function && sym->ts.deferred)); | |
1496 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1497 | { |
1498 | /* Return via extra parameter. */ | |
1499 | if (sym->attr.result && byref | |
1500 | && !sym->backend_decl) | |
1501 | { | |
1502 | sym->backend_decl = | |
1503 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1504 | /* For entry master function skip over the __entry |
1505 | argument. */ | |
1506 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1507 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1508 | } |
1509 | ||
1510 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1511 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1512 | |
1edfd7dd | 1513 | /* However, the string length of deferred arrays must be set. */ |
1514 | if (sym->ts.type == BT_CHARACTER | |
1515 | && sym->ts.deferred | |
1516 | && sym->attr.dimension | |
1517 | && sym->attr.allocatable) | |
1518 | gfc_defer_symbol_init (sym); | |
1519 | ||
47e6a59a | 1520 | if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS) |
1521 | GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1; | |
1522 | ||
4ee9c684 | 1523 | /* Create a character length variable. */ |
1524 | if (sym->ts.type == BT_CHARACTER) | |
1525 | { | |
617125a6 | 1526 | /* For a deferred dummy, make a new string length variable. */ |
1527 | if (sym->ts.deferred | |
1528 | && | |
1529 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1530 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1531 | ||
d1b1479f | 1532 | if (sym->ts.deferred && byref) |
617125a6 | 1533 | { |
d1b1479f | 1534 | /* The string length of a deferred char array is stored in the |
1535 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1536 | marked as a result. Exempt this variable from generating a | |
1537 | temporary for it. */ | |
1538 | if (sym->attr.result) | |
1539 | { | |
1540 | /* We need to insert a indirect ref for param decls. */ | |
1541 | if (sym->ts.u.cl->backend_decl | |
1542 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1543 | { |
1544 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
a4731200 | 1545 | sym->ts.u.cl->backend_decl = |
d1b1479f | 1546 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
a4731200 | 1547 | } |
ddcfeaf1 | 1548 | } |
d1b1479f | 1549 | /* For all other parameters make sure, that they are copied so |
1550 | that the value and any modifications are local to the routine | |
1551 | by generating a temporary variable. */ | |
1552 | else if (sym->attr.function | |
1553 | && sym->ts.u.cl->passed_length == NULL | |
1554 | && sym->ts.u.cl->backend_decl) | |
1555 | { | |
1556 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1557 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1558 | sym->ts.u.cl->backend_decl | |
1559 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1560 | else | |
a4731200 | 1561 | sym->ts.u.cl->backend_decl = NULL_TREE; |
d1b1479f | 1562 | } |
617125a6 | 1563 | } |
1564 | ||
eeebe20b | 1565 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1566 | length = gfc_create_string_length (sym); |
1567 | else | |
eeebe20b | 1568 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 1569 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1570 | { |
d95efb59 | 1571 | /* Add the string length to the same context as the symbol. */ |
1572 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1573 | gfc_add_decl_to_function (length); | |
1574 | else | |
1575 | gfc_add_decl_to_parent_function (length); | |
1576 | ||
1577 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1578 | DECL_CONTEXT (length)); | |
1579 | ||
d4163395 | 1580 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1581 | } |
4ee9c684 | 1582 | } |
1583 | ||
1584 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1585 | if ((sym->attr.dimension || sym->attr.codimension) |
1586 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1587 | { |
d95efb59 | 1588 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1589 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1590 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1591 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1592 | sym->backend_decl = decl; | |
4ee9c684 | 1593 | } |
1594 | ||
c6793847 | 1595 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1596 | some caller is expecting an expression to apply the component refs to. | |
1597 | Therefore the descriptor is only created and stored in | |
1598 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1599 | responsible to extract it from there, when the descriptor is | |
1600 | desired. */ | |
1601 | if (IS_CLASS_ARRAY (sym) | |
1602 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1603 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1604 | { | |
1605 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1606 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1607 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1608 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1609 | sym->backend_decl = decl; | |
1610 | } | |
1611 | ||
4ee9c684 | 1612 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1613 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1614 | { | |
1615 | gfc_add_assign_aux_vars (sym); | |
1616 | } | |
9579733e | 1617 | |
fd23cc08 | 1618 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1619 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1620 | ||
fd23cc08 | 1621 | return sym->backend_decl; |
4ee9c684 | 1622 | } |
1623 | ||
1624 | if (sym->backend_decl) | |
1625 | return sym->backend_decl; | |
1626 | ||
a25debd0 | 1627 | /* Special case for array-valued named constants from intrinsic |
1628 | procedures; those are inlined. */ | |
d566c3e0 | 1629 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1630 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1631 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1632 | intrinsic_array_parameter = true; |
1633 | ||
044bbd71 | 1634 | /* If use associated compilation, use the module |
094bca96 | 1635 | declaration. */ |
044bbd71 | 1636 | if ((sym->attr.flavor == FL_VARIABLE |
1637 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1638 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1639 | && !intrinsic_array_parameter |
1640 | && sym->module | |
1641 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1642 | { |
1643 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1644 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1645 | return sym->backend_decl; | |
1646 | } | |
7ea64434 | 1647 | |
4ee9c684 | 1648 | if (sym->attr.flavor == FL_PROCEDURE) |
1649 | { | |
77d080ca | 1650 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1651 | procedure pointers and procptr initialization targets. */ |
1650ce2f | 1652 | if (sym->attr.use_assoc |
1653 | || sym->attr.used_in_submodule | |
1654 | || sym->attr.intrinsic | |
77d080ca | 1655 | || sym->attr.if_source != IFSRC_DECL) |
802532b9 | 1656 | { |
1657 | decl = gfc_get_extern_function_decl (sym); | |
1658 | gfc_set_decl_location (decl, &sym->declared_at); | |
1659 | } | |
1660 | else | |
1661 | { | |
1662 | if (!sym->backend_decl) | |
1663 | build_function_decl (sym, false); | |
1664 | decl = sym->backend_decl; | |
1665 | } | |
4ee9c684 | 1666 | return decl; |
1667 | } | |
1668 | ||
1669 | if (sym->attr.intrinsic) | |
382ad5c3 | 1670 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1671 | |
1672 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1673 | type declaration. For associate names, the target character |
1674 | length is used. Set 'length' to a constant so that if the | |
8b7e5587 | 1675 | string length is a variable, it is not finished a second time. */ |
4ee9c684 | 1676 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1677 | { |
bb2fe503 | 1678 | if (sym->attr.associate_var |
1679 | && sym->ts.deferred | |
1680 | && sym->assoc && sym->assoc->target | |
1681 | && ((sym->assoc->target->expr_type == EXPR_VARIABLE | |
1682 | && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER) | |
ef718f2c | 1683 | || sym->assoc->target->expr_type != EXPR_VARIABLE)) |
bb2fe503 | 1684 | sym->ts.u.cl->backend_decl = NULL_TREE; |
1685 | ||
c3639856 | 1686 | if (sym->attr.associate_var |
1687 | && sym->ts.u.cl->backend_decl | |
ef718f2c | 1688 | && (VAR_P (sym->ts.u.cl->backend_decl) |
1689 | || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)) | |
c3639856 | 1690 | length = gfc_index_zero_node; |
1691 | else | |
1692 | length = gfc_create_string_length (sym); | |
1693 | } | |
4ee9c684 | 1694 | |
1695 | /* Create the decl for the variable. */ | |
e60a6f7b | 1696 | decl = build_decl (sym->declared_at.lb->location, |
1697 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1698 | |
1236e28b | 1699 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1700 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1701 | decl_attributes (&decl, attributes, 0); | |
1702 | ||
f888a3fb | 1703 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1704 | This is done here rather than in gfc_finish_var_decl because it |
1705 | is different for string length variables. */ | |
8b7e5587 | 1706 | if (sym->module || sym->fn_result_spec) |
df4d540f | 1707 | { |
1236e28b | 1708 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1709 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1710 | DECL_IGNORED_P (decl) = 1; |
1711 | } | |
4ee9c684 | 1712 | |
bc5663df | 1713 | if (sym->attr.select_type_temporary) |
1714 | { | |
1715 | DECL_ARTIFICIAL (decl) = 1; | |
1716 | DECL_IGNORED_P (decl) = 1; | |
1717 | } | |
1718 | ||
7a777e43 | 1719 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1720 | { |
1721 | /* Create variables to hold the non-constant bits of array info. */ | |
1722 | gfc_build_qualified_array (decl, sym); | |
1723 | ||
b3c3927c | 1724 | if (sym->attr.contiguous |
1725 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1726 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1727 | } | |
1728 | ||
0a96a7cc | 1729 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1730 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1731 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1732 | (CLASS_DATA (sym)->attr.dimension |
1733 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1734 | || (sym->ts.type == BT_DERIVED |
1735 | && (sym->ts.u.derived->attr.alloc_comp | |
1736 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1737 | && !sym->ns->proc_name->attr.is_main_program | |
1738 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1739 | /* This applies a derived type default initializer. */ |
1740 | || (sym->ts.type == BT_DERIVED | |
1741 | && sym->attr.save == SAVE_NONE | |
1742 | && !sym->attr.data | |
1743 | && !sym->attr.allocatable | |
1744 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1745 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1746 | gfc_defer_symbol_init (sym); |
2294b616 | 1747 | |
9fe80e30 | 1748 | if (sym->ts.type == BT_CHARACTER |
1749 | && sym->attr.allocatable | |
1750 | && !sym->attr.dimension | |
1751 | && sym->ts.u.cl && sym->ts.u.cl->length | |
1752 | && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE) | |
1753 | gfc_defer_symbol_init (sym); | |
1754 | ||
4d8caf18 | 1755 | /* Associate names can use the hidden string length variable |
1756 | of their associated target. */ | |
1757 | if (sym->ts.type == BT_CHARACTER | |
cfd8c4eb | 1758 | && TREE_CODE (length) != INTEGER_CST |
1759 | && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF) | |
4d8caf18 | 1760 | { |
dc9b31b5 | 1761 | length = fold_convert (gfc_charlen_type_node, length); |
4d8caf18 | 1762 | gfc_finish_var_decl (length, sym); |
2d9b55b8 | 1763 | if (!sym->attr.associate_var |
1764 | && TREE_CODE (length) == VAR_DECL | |
da6baba7 | 1765 | && sym->value && sym->value->expr_type != EXPR_NULL |
1766 | && sym->value->ts.u.cl->length) | |
2d9b55b8 | 1767 | { |
1768 | gfc_expr *len = sym->value->ts.u.cl->length; | |
1769 | DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts, | |
1770 | TREE_TYPE (length), | |
1771 | false, false, false); | |
dc9b31b5 | 1772 | DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node, |
1773 | DECL_INITIAL (length)); | |
2d9b55b8 | 1774 | } |
1775 | else | |
da6baba7 | 1776 | gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL); |
4d8caf18 | 1777 | } |
1778 | ||
4ee9c684 | 1779 | gfc_finish_var_decl (decl, sym); |
1780 | ||
bda1f152 | 1781 | if (sym->ts.type == BT_CHARACTER) |
4d8caf18 | 1782 | /* Character variables need special handling. */ |
1783 | gfc_allocate_lang_decl (decl); | |
1033248c | 1784 | |
47e6a59a | 1785 | if (sym->assoc && sym->attr.subref_array_pointer) |
1786 | sym->attr.pointer = 1; | |
1787 | ||
1788 | if (sym->attr.pointer && sym->attr.dimension | |
1789 | && !sym->ts.deferred | |
1790 | && !(sym->attr.select_type_temporary | |
1791 | && !sym->attr.subref_array_pointer)) | |
1792 | GFC_DECL_PTR_ARRAY_P (decl) = 1; | |
1033248c | 1793 | |
fd23cc08 | 1794 | if (sym->ts.type == BT_CLASS) |
47e6a59a | 1795 | GFC_DECL_CLASS(decl) = 1; |
fd23cc08 | 1796 | |
4ee9c684 | 1797 | sym->backend_decl = decl; |
1798 | ||
c8f1568f | 1799 | if (sym->attr.assign) |
21ebda4d | 1800 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1801 | |
cd2c99b8 | 1802 | if (intrinsic_array_parameter) |
1803 | { | |
1804 | TREE_STATIC (decl) = 1; | |
1805 | DECL_EXTERNAL (decl) = 0; | |
1806 | } | |
1807 | ||
1808 | if (TREE_STATIC (decl) | |
1809 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1810 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
14eab729 | 1811 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
a961ca30 | 1812 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1813 | && (flag_coarray != GFC_FCOARRAY_LIB |
f0efd2e8 | 1814 | || !sym->attr.codimension || sym->attr.allocatable) |
1815 | && !(sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
1816 | && !(sym->ts.type == BT_CLASS | |
1817 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type)) | |
a545a8f8 | 1818 | { |
1819 | /* Add static initializer. For procedures, it is only needed if | |
1820 | SAVE is specified otherwise they need to be reinitialized | |
1821 | every time the procedure is entered. The TREE_STATIC is | |
1822 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1823 | |
bda1f152 | 1824 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1825 | TREE_TYPE (decl), sym->attr.dimension |
1826 | || (sym->attr.codimension | |
1827 | && sym->attr.allocatable), | |
1828 | sym->attr.pointer || sym->attr.allocatable | |
1829 | || sym->ts.type == BT_CLASS, | |
1830 | sym->attr.proc_pointer); | |
bda1f152 | 1831 | } |
1832 | ||
9579733e | 1833 | if (!TREE_STATIC (decl) |
1834 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1835 | && !sym->attr.pointer | |
1836 | && !sym->attr.allocatable | |
bc5663df | 1837 | && !sym->attr.proc_pointer |
1838 | && !sym->attr.select_type_temporary) | |
9579733e | 1839 | DECL_BY_REFERENCE (decl) = 1; |
1840 | ||
cf5f881f | 1841 | if (sym->attr.associate_var) |
1842 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1843 | ||
ebad7c3e | 1844 | if (sym->attr.vtab |
ea9e8242 | 1845 | || (sym->name[0] == '_' && gfc_str_startswith (sym->name, "__def_init"))) |
4c197fd0 | 1846 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1847 | |
4ee9c684 | 1848 | return decl; |
1849 | } | |
1850 | ||
1851 | ||
dbe60343 | 1852 | /* Substitute a temporary variable in place of the real one. */ |
1853 | ||
1854 | void | |
1855 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1856 | { | |
1857 | save->attr = sym->attr; | |
1858 | save->decl = sym->backend_decl; | |
1859 | ||
1860 | gfc_clear_attr (&sym->attr); | |
1861 | sym->attr.referenced = 1; | |
1862 | sym->attr.flavor = FL_VARIABLE; | |
1863 | ||
1864 | sym->backend_decl = decl; | |
1865 | } | |
1866 | ||
1867 | ||
1868 | /* Restore the original variable. */ | |
1869 | ||
1870 | void | |
1871 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1872 | { | |
1873 | sym->attr = save->attr; | |
1874 | sym->backend_decl = save->decl; | |
1875 | } | |
1876 | ||
1877 | ||
cad0ddcf | 1878 | /* Declare a procedure pointer. */ |
1879 | ||
1880 | static tree | |
1881 | get_proc_pointer_decl (gfc_symbol *sym) | |
1882 | { | |
1883 | tree decl; | |
36b0a1b0 | 1884 | tree attributes; |
cad0ddcf | 1885 | |
1886 | decl = sym->backend_decl; | |
1887 | if (decl) | |
1888 | return decl; | |
1889 | ||
e60a6f7b | 1890 | decl = build_decl (input_location, |
1891 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1892 | build_pointer_type (gfc_get_function_type (sym))); |
1893 | ||
ea6f8461 | 1894 | if (sym->module) |
1895 | { | |
1896 | /* Apply name mangling. */ | |
1897 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1898 | if (sym->attr.use_assoc) | |
1899 | DECL_IGNORED_P (decl) = 1; | |
1900 | } | |
a90fe829 | 1901 | |
e72f979a | 1902 | if ((sym->ns->proc_name |
1903 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1904 | || sym->attr.contained) |
1905 | gfc_add_decl_to_function (decl); | |
cf269acc | 1906 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1907 | gfc_add_decl_to_parent_function (decl); |
1908 | ||
1909 | sym->backend_decl = decl; | |
1910 | ||
cf269acc | 1911 | /* If a variable is USE associated, it's always external. */ |
1912 | if (sym->attr.use_assoc) | |
1913 | { | |
1914 | DECL_EXTERNAL (decl) = 1; | |
1915 | TREE_PUBLIC (decl) = 1; | |
1916 | } | |
1917 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1918 | { | |
1919 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1920 | TREE_PUBLIC (decl) = 1; |
1921 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1922 | { | |
1923 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1924 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1925 | } | |
cf269acc | 1926 | TREE_STATIC (decl) = 1; |
1927 | } | |
1928 | ||
cad0ddcf | 1929 | if (!sym->attr.use_assoc |
1930 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1931 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1932 | TREE_STATIC (decl) = 1; | |
1933 | ||
1934 | if (TREE_STATIC (decl) && sym->value) | |
1935 | { | |
1936 | /* Add static initializer. */ | |
1937 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1938 | TREE_TYPE (decl), |
1939 | sym->attr.dimension, | |
1940 | false, true); | |
cad0ddcf | 1941 | } |
1942 | ||
8fb1768c | 1943 | /* Handle threadprivate procedure pointers. */ |
1944 | if (sym->attr.threadprivate | |
1945 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1946 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1947 | |
36b0a1b0 | 1948 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1949 | decl_attributes (&decl, attributes, 0); | |
1950 | ||
cad0ddcf | 1951 | return decl; |
1952 | } | |
1953 | ||
1954 | ||
4ee9c684 | 1955 | /* Get a basic decl for an external function. */ |
1956 | ||
1957 | tree | |
1958 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1959 | { | |
1960 | tree type; | |
1961 | tree fndecl; | |
36b0a1b0 | 1962 | tree attributes; |
4ee9c684 | 1963 | gfc_expr e; |
1964 | gfc_intrinsic_sym *isym; | |
1965 | gfc_expr argexpr; | |
17000b91 | 1966 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1967 | tree name; |
1968 | tree mangled_name; | |
83aeedb9 | 1969 | gfc_gsymbol *gsym; |
4ee9c684 | 1970 | |
1971 | if (sym->backend_decl) | |
1972 | return sym->backend_decl; | |
1973 | ||
1b716045 | 1974 | /* We should never be creating external decls for alternate entry points. |
1975 | The procedure may be an alternate entry point, but we don't want/need | |
1976 | to know that. */ | |
22d678e8 | 1977 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1978 | |
cad0ddcf | 1979 | if (sym->attr.proc_pointer) |
1980 | return get_proc_pointer_decl (sym); | |
1981 | ||
83aeedb9 | 1982 | /* See if this is an external procedure from the same file. If so, |
1983 | return the backend_decl. */ | |
da5c730d | 1984 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1985 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1986 | |
c8b913ab | 1987 | if (gsym && !gsym->defined) |
1988 | gsym = NULL; | |
1989 | ||
1990 | /* This can happen because of C binding. */ | |
1991 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1992 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1993 | goto module_sym; | |
1994 | ||
044bbd71 | 1995 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1996 | && !sym->backend_decl | |
1997 | && gsym && gsym->ns | |
1998 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1999 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 2000 | { |
d896f9b3 | 2001 | if (!gsym->ns->proc_name->backend_decl) |
2002 | { | |
2003 | /* By construction, the external function cannot be | |
2004 | a contained procedure. */ | |
2005 | locus old_loc; | |
d896f9b3 | 2006 | |
4671339c | 2007 | gfc_save_backend_locus (&old_loc); |
9078126c | 2008 | push_cfun (NULL); |
d896f9b3 | 2009 | |
2010 | gfc_create_function_decl (gsym->ns, true); | |
2011 | ||
2012 | pop_cfun (); | |
4671339c | 2013 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 2014 | } |
2015 | ||
83aeedb9 | 2016 | /* If the namespace has entries, the proc_name is the |
2017 | entry master. Find the entry and use its backend_decl. | |
2018 | otherwise, use the proc_name backend_decl. */ | |
2019 | if (gsym->ns->entries) | |
2020 | { | |
2021 | gfc_entry_list *entry = gsym->ns->entries; | |
2022 | ||
2023 | for (; entry; entry = entry->next) | |
2024 | { | |
2025 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
2026 | { | |
2027 | sym->backend_decl = entry->sym->backend_decl; | |
2028 | break; | |
2029 | } | |
2030 | } | |
2031 | } | |
2032 | else | |
40c74b02 | 2033 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 2034 | |
2035 | if (sym->backend_decl) | |
40c74b02 | 2036 | { |
2037 | /* Avoid problems of double deallocation of the backend declaration | |
2038 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2039 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2040 | sym->attr.use_assoc = 0; | |
2041 | ||
2042 | return sym->backend_decl; | |
2043 | } | |
83aeedb9 | 2044 | } |
2045 | ||
7ea64434 | 2046 | /* See if this is a module procedure from the same file. If so, |
2047 | return the backend_decl. */ | |
2048 | if (sym->module) | |
2049 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2050 | ||
c8b913ab | 2051 | module_sym: |
2052 | if (gsym && gsym->ns | |
2053 | && (gsym->type == GSYM_MODULE | |
2054 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 2055 | { |
2056 | gfc_symbol *s; | |
2057 | ||
2058 | s = NULL; | |
c8b913ab | 2059 | if (gsym->type == GSYM_MODULE) |
2060 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2061 | else | |
2062 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2063 | ||
7ea64434 | 2064 | if (s && s->backend_decl) |
2065 | { | |
85ec2f13 | 2066 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2067 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2068 | true); | |
2069 | else if (sym->ts.type == BT_CHARACTER) | |
2070 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 2071 | sym->backend_decl = s->backend_decl; |
2072 | return sym->backend_decl; | |
2073 | } | |
2074 | } | |
2075 | ||
4ee9c684 | 2076 | if (sym->attr.intrinsic) |
2077 | { | |
2078 | /* Call the resolution function to get the actual name. This is | |
2079 | a nasty hack which relies on the resolution functions only looking | |
2080 | at the first argument. We pass NULL for the second argument | |
2081 | otherwise things like AINT get confused. */ | |
2082 | isym = gfc_find_function (sym->name); | |
22d678e8 | 2083 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 2084 | |
2085 | memset (&e, 0, sizeof (e)); | |
2086 | e.expr_type = EXPR_FUNCTION; | |
2087 | ||
2088 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 2089 | gcc_assert (isym->formal); |
4ee9c684 | 2090 | argexpr.ts = isym->formal->ts; |
2091 | ||
2092 | if (isym->formal->next == NULL) | |
2093 | isym->resolve.f1 (&e, &argexpr); | |
2094 | else | |
2095 | { | |
37e0271a | 2096 | if (isym->formal->next->next == NULL) |
2097 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2098 | else | |
2099 | { | |
7fe55cc9 | 2100 | if (isym->formal->next->next->next == NULL) |
2101 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2102 | else | |
2103 | { | |
2104 | /* All specific intrinsics take less than 5 arguments. */ | |
2105 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2106 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2107 | } | |
37e0271a | 2108 | } |
4ee9c684 | 2109 | } |
bdaed7d2 | 2110 | |
829d7a08 | 2111 | if (flag_f2c |
bdaed7d2 | 2112 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2113 | || e.ts.type == BT_COMPLEX)) | |
2114 | { | |
2115 | /* Specific which needs a different implementation if f2c | |
2116 | calling conventions are used. */ | |
17000b91 | 2117 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 2118 | } |
2119 | else | |
17000b91 | 2120 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 2121 | |
4ee9c684 | 2122 | name = get_identifier (s); |
2123 | mangled_name = name; | |
2124 | } | |
2125 | else | |
2126 | { | |
2127 | name = gfc_sym_identifier (sym); | |
2128 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2129 | } | |
2130 | ||
2131 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2132 | fndecl = build_decl (input_location, |
2133 | FUNCTION_DECL, name, type); | |
4ee9c684 | 2134 | |
e27454ee | 2135 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2136 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2137 | the opposite of declaring a function as static in C). */ |
e27454ee | 2138 | DECL_EXTERNAL (fndecl) = 1; |
2139 | TREE_PUBLIC (fndecl) = 1; | |
2140 | ||
1236e28b | 2141 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2142 | decl_attributes (&fndecl, attributes, 0); | |
2143 | ||
2144 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2145 | |
2146 | /* Set the context of this decl. */ | |
2147 | if (0 && sym->ns && sym->ns->proc_name) | |
2148 | { | |
2149 | /* TODO: Add external decls to the appropriate scope. */ | |
2150 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2151 | } | |
2152 | else | |
2153 | { | |
f888a3fb | 2154 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2155 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2156 | } | |
2157 | ||
4ee9c684 | 2158 | /* Set attributes for PURE functions. A call to PURE function in the |
2159 | Fortran 95 sense is both pure and without side effects in the C | |
2160 | sense. */ | |
bead0399 | 2161 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2162 | { |
4d4b9f0e | 2163 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2164 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2165 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2166 | parameters and don't use alternate returns (is this | |
2167 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2168 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2169 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2170 | } |
2171 | ||
6e27d773 | 2172 | /* Mark non-returning functions. */ |
2173 | if (sym->attr.noreturn) | |
2174 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2175 | ||
4ee9c684 | 2176 | sym->backend_decl = fndecl; |
2177 | ||
2178 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2179 | pushdecl_top_level (fndecl); | |
2180 | ||
15b28553 | 2181 | if (sym->formal_ns |
2182 | && sym->formal_ns->proc_name == sym | |
2183 | && sym->formal_ns->omp_declare_simd) | |
2184 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2185 | ||
4ee9c684 | 2186 | return fndecl; |
2187 | } | |
2188 | ||
2189 | ||
2190 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2191 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2192 | a master function with alternate entry points. */ | |
4ee9c684 | 2193 | |
1b716045 | 2194 | static void |
d896f9b3 | 2195 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2196 | { |
36b0a1b0 | 2197 | tree fndecl, type, attributes; |
4ee9c684 | 2198 | symbol_attribute attr; |
1b716045 | 2199 | tree result_decl; |
4ee9c684 | 2200 | gfc_formal_arglist *f; |
2201 | ||
76e207a9 | 2202 | bool module_procedure = sym->attr.module_procedure |
2203 | && sym->ns | |
2204 | && sym->ns->proc_name | |
2205 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2206 | ||
2207 | gcc_assert (!sym->attr.external || module_procedure); | |
4ee9c684 | 2208 | |
802532b9 | 2209 | if (sym->backend_decl) |
2210 | return; | |
2211 | ||
b31f705b | 2212 | /* Set the line and filename. sym->declared_at seems to point to the |
2213 | last statement for subroutines, but it'll do for now. */ | |
2214 | gfc_set_backend_locus (&sym->declared_at); | |
2215 | ||
4ee9c684 | 2216 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2217 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2218 | || DECL_FILE_SCOPE_P (current_function_decl) |
2219 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2220 | == NAMESPACE_DECL)); | |
4ee9c684 | 2221 | |
2222 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2223 | fndecl = build_decl (input_location, |
2224 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2225 | |
1236e28b | 2226 | attr = sym->attr; |
2227 | ||
e27454ee | 2228 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2229 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2230 | the opposite of declaring a function as static in C). */ |
e27454ee | 2231 | DECL_EXTERNAL (fndecl) = 0; |
2232 | ||
7d6b5754 | 2233 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2234 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2235 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2236 | && flag_module_private))) |
7d6b5754 | 2237 | sym->attr.access = ACCESS_PRIVATE; |
2238 | ||
e27454ee | 2239 | if (!current_function_decl |
c5cb468c | 2240 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2241 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2242 | || sym->attr.public_used)) | |
e27454ee | 2243 | TREE_PUBLIC (fndecl) = 1; |
2244 | ||
9e45357a | 2245 | if (sym->attr.referenced || sym->attr.entry_master) |
2246 | TREE_USED (fndecl) = 1; | |
2247 | ||
1236e28b | 2248 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2249 | decl_attributes (&fndecl, attributes, 0); | |
2250 | ||
4ee9c684 | 2251 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2252 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2253 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2254 | result_decl = NULL_TREE; |
2255 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2256 | if (attr.function) | |
2257 | { | |
2258 | if (gfc_return_by_reference (sym)) | |
2259 | type = void_type_node; | |
2260 | else | |
2261 | { | |
2262 | if (sym->result != sym) | |
2263 | result_decl = gfc_sym_identifier (sym->result); | |
2264 | ||
2265 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2266 | } | |
2267 | } | |
2268 | else | |
2269 | { | |
2270 | /* Look for alternate return placeholders. */ | |
2271 | int has_alternate_returns = 0; | |
6777213b | 2272 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2273 | { |
2274 | if (f->sym == NULL) | |
2275 | { | |
2276 | has_alternate_returns = 1; | |
2277 | break; | |
2278 | } | |
2279 | } | |
2280 | ||
2281 | if (has_alternate_returns) | |
2282 | type = integer_type_node; | |
2283 | else | |
2284 | type = void_type_node; | |
2285 | } | |
2286 | ||
e60a6f7b | 2287 | result_decl = build_decl (input_location, |
2288 | RESULT_DECL, result_decl, type); | |
540edea7 | 2289 | DECL_ARTIFICIAL (result_decl) = 1; |
2290 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2291 | DECL_CONTEXT (result_decl) = fndecl; |
2292 | DECL_RESULT (fndecl) = result_decl; | |
2293 | ||
2294 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2295 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2296 | |
4ee9c684 | 2297 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2298 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2299 | |
f888a3fb | 2300 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2301 | Fortran 95 sense is both pure and without side effects in the C |
2302 | sense. */ | |
bead0399 | 2303 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2304 | { |
be393645 | 2305 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2306 | including an alternate return. In that case it can also be |
231e961a | 2307 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2308 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2309 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2310 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2311 | } | |
2312 | ||
36b0a1b0 | 2313 | |
4ee9c684 | 2314 | /* Layout the function declaration and put it in the binding level |
2315 | of the current function. */ | |
d896f9b3 | 2316 | |
4c197fd0 | 2317 | if (global) |
d896f9b3 | 2318 | pushdecl_top_level (fndecl); |
2319 | else | |
2320 | pushdecl (fndecl); | |
1b716045 | 2321 | |
16a40513 | 2322 | /* Perform name mangling if this is a top level or module procedure. */ |
2323 | if (current_function_decl == NULL_TREE) | |
2324 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2325 | ||
1b716045 | 2326 | sym->backend_decl = fndecl; |
2327 | } | |
2328 | ||
2329 | ||
2330 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2331 | ||
2332 | static void | |
2333 | create_function_arglist (gfc_symbol * sym) | |
2334 | { | |
2335 | tree fndecl; | |
2336 | gfc_formal_arglist *f; | |
d4163395 | 2337 | tree typelist, hidden_typelist; |
2338 | tree arglist, hidden_arglist; | |
1b716045 | 2339 | tree type; |
2340 | tree parm; | |
2341 | ||
2342 | fndecl = sym->backend_decl; | |
2343 | ||
e4b2c26c | 2344 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2345 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2346 | arglist = NULL_TREE; |
d4163395 | 2347 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2348 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2349 | |
2350 | if (sym->attr.entry_master) | |
2351 | { | |
2352 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2353 | parm = build_decl (input_location, |
2354 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2355 | |
1b716045 | 2356 | DECL_CONTEXT (parm) = fndecl; |
2357 | DECL_ARG_TYPE (parm) = type; | |
2358 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2359 | gfc_finish_decl (parm); |
d95efb59 | 2360 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2361 | |
2362 | arglist = chainon (arglist, parm); | |
2363 | typelist = TREE_CHAIN (typelist); | |
2364 | } | |
2365 | ||
e4b2c26c | 2366 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2367 | { |
d4163395 | 2368 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2369 | |
e4b2c26c | 2370 | if (sym->ts.type == BT_CHARACTER) |
2371 | { | |
e4b2c26c | 2372 | /* Length of character result. */ |
d4163395 | 2373 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2374 | |
e60a6f7b | 2375 | length = build_decl (input_location, |
2376 | PARM_DECL, | |
e4b2c26c | 2377 | get_identifier (".__result"), |
d4163395 | 2378 | len_type); |
b345a09f | 2379 | if (POINTER_TYPE_P (len_type)) |
2380 | { | |
2381 | sym->ts.u.cl->passed_length = length; | |
2382 | TREE_USED (length) = 1; | |
2383 | } | |
2384 | else if (!sym->ts.u.cl->length) | |
e4b2c26c | 2385 | { |
eeebe20b | 2386 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2387 | TREE_USED (length) = 1; |
4ee9c684 | 2388 | } |
22d678e8 | 2389 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2390 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2391 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2392 | TREE_READONLY (length) = 1; |
b5b40b3f | 2393 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2394 | gfc_finish_decl (length); |
eeebe20b | 2395 | if (sym->ts.u.cl->backend_decl == NULL |
2396 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2397 | { |
2398 | gfc_symbol *arg; | |
2399 | tree backend_decl; | |
4ee9c684 | 2400 | |
eeebe20b | 2401 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2402 | { |
e60a6f7b | 2403 | tree len = build_decl (input_location, |
2404 | VAR_DECL, | |
d4163395 | 2405 | get_identifier ("..__result"), |
2406 | gfc_charlen_type_node); | |
2407 | DECL_ARTIFICIAL (len) = 1; | |
2408 | TREE_USED (len) = 1; | |
eeebe20b | 2409 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2410 | } |
4ee9c684 | 2411 | |
d4163395 | 2412 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2413 | arg = sym->result ? sym->result : sym; | |
2414 | backend_decl = arg->backend_decl; | |
2415 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2416 | type. */ | |
2417 | arg->backend_decl = NULL; | |
2418 | type = gfc_sym_type (arg); | |
2419 | arg->backend_decl = backend_decl; | |
2420 | type = build_reference_type (type); | |
2421 | } | |
2422 | } | |
4ee9c684 | 2423 | |
e60a6f7b | 2424 | parm = build_decl (input_location, |
2425 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2426 | |
d4163395 | 2427 | DECL_CONTEXT (parm) = fndecl; |
2428 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2429 | TREE_READONLY (parm) = 1; | |
2430 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2431 | gfc_finish_decl (parm); |
4ee9c684 | 2432 | |
d4163395 | 2433 | arglist = chainon (arglist, parm); |
2434 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2435 | |
d4163395 | 2436 | if (sym->ts.type == BT_CHARACTER) |
2437 | { | |
2438 | gfc_allocate_lang_decl (parm); | |
2439 | arglist = chainon (arglist, length); | |
e4b2c26c | 2440 | typelist = TREE_CHAIN (typelist); |
2441 | } | |
2442 | } | |
4ee9c684 | 2443 | |
d4163395 | 2444 | hidden_typelist = typelist; |
6777213b | 2445 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2446 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2447 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2448 | ||
6777213b | 2449 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2450 | { |
2451 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2452 | |
e4b2c26c | 2453 | /* Ignore alternate returns. */ |
2454 | if (f->sym == NULL) | |
2455 | continue; | |
4ee9c684 | 2456 | |
e4b2c26c | 2457 | type = TREE_VALUE (typelist); |
4ee9c684 | 2458 | |
296db1d1 | 2459 | if (f->sym->ts.type == BT_CHARACTER |
2460 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2461 | { |
2462 | tree len_type = TREE_VALUE (hidden_typelist); | |
2463 | tree length = NULL_TREE; | |
617125a6 | 2464 | if (!f->sym->ts.deferred) |
2465 | gcc_assert (len_type == gfc_charlen_type_node); | |
2466 | else | |
2467 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2468 | |
2469 | strcpy (&name[1], f->sym->name); | |
2470 | name[0] = '_'; | |
e60a6f7b | 2471 | length = build_decl (input_location, |
2472 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2473 | |
d4163395 | 2474 | hidden_arglist = chainon (hidden_arglist, length); |
2475 | DECL_CONTEXT (length) = fndecl; | |
2476 | DECL_ARTIFICIAL (length) = 1; | |
2477 | DECL_ARG_TYPE (length) = len_type; | |
2478 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2479 | gfc_finish_decl (length); |
4ee9c684 | 2480 | |
a4abf8a0 | 2481 | /* Remember the passed value. */ |
a90fe829 | 2482 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2483 | { |
2484 | /* This can happen if the same type is used for multiple | |
2485 | arguments. We need to copy cl as otherwise | |
2486 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2487 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2488 | } |
eeebe20b | 2489 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2490 | |
d4163395 | 2491 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2492 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2493 | { |
d4163395 | 2494 | TREE_USED (length) = 1; |
eeebe20b | 2495 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2496 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2497 | } |
2498 | ||
2499 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2500 | ||
eeebe20b | 2501 | if (f->sym->ts.u.cl->backend_decl == NULL |
2502 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2503 | { |
ddcfeaf1 | 2504 | if (POINTER_TYPE_P (len_type)) |
2505 | f->sym->ts.u.cl->backend_decl = | |
2506 | build_fold_indirect_ref_loc (input_location, length); | |
2507 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2508 | gfc_create_string_length (f->sym); |
2509 | ||
2510 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2511 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2512 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2513 | else | |
2514 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2515 | } |
4ee9c684 | 2516 | } |
532c2d79 | 2517 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2518 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2519 | Thus, we will use a hidden argument in that case. */ |
2520 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2521 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
d7cd448a | 2522 | && !gfc_bt_struct (f->sym->ts.type)) |
532c2d79 | 2523 | { |
2524 | tree tmp; | |
2525 | strcpy (&name[1], f->sym->name); | |
2526 | name[0] = '_'; | |
2527 | tmp = build_decl (input_location, | |
2528 | PARM_DECL, get_identifier (name), | |
2529 | boolean_type_node); | |
2530 | ||
2531 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2532 | DECL_CONTEXT (tmp) = fndecl; | |
2533 | DECL_ARTIFICIAL (tmp) = 1; | |
2534 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2535 | TREE_READONLY (tmp) = 1; | |
2536 | gfc_finish_decl (tmp); | |
2537 | } | |
4ee9c684 | 2538 | |
d4163395 | 2539 | /* For non-constant length array arguments, make sure they use |
2540 | a different type node from TYPE_ARG_TYPES type. */ | |
2541 | if (f->sym->attr.dimension | |
2542 | && type == TREE_VALUE (typelist) | |
2543 | && TREE_CODE (type) == POINTER_TYPE | |
2544 | && GFC_ARRAY_TYPE_P (type) | |
2545 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2546 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2547 | { | |
2548 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2549 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2550 | else | |
2551 | type = gfc_sym_type (f->sym); | |
2552 | } | |
2553 | ||
cad0ddcf | 2554 | if (f->sym->attr.proc_pointer) |
2555 | type = build_pointer_type (type); | |
2556 | ||
2364aa60 | 2557 | if (f->sym->attr.volatile_) |
2558 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2559 | ||
69b1505f | 2560 | /* Build the argument declaration. */ |
e60a6f7b | 2561 | parm = build_decl (input_location, |
2562 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2563 | |
2364aa60 | 2564 | if (f->sym->attr.volatile_) |
2565 | { | |
2566 | TREE_THIS_VOLATILE (parm) = 1; | |
2567 | TREE_SIDE_EFFECTS (parm) = 1; | |
2568 | } | |
2569 | ||
d4163395 | 2570 | /* Fill in arg stuff. */ |
2571 | DECL_CONTEXT (parm) = fndecl; | |
2572 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2573 | /* All implementation args except for VALUE are read-only. */ |
2574 | if (!f->sym->attr.value) | |
2575 | TREE_READONLY (parm) = 1; | |
98923a84 | 2576 | if (POINTER_TYPE_P (type) |
2577 | && (!f->sym->attr.proc_pointer | |
2578 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2579 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2580 | |
b9c7fce7 | 2581 | gfc_finish_decl (parm); |
cf5f881f | 2582 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2583 | |
2584 | f->sym->backend_decl = parm; | |
2585 | ||
7dce33fe | 2586 | /* Coarrays which are descriptorless or assumed-shape pass with |
2587 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2588 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2589 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2590 | && !f->sym->attr.allocatable) | |
2591 | || (f->sym->ts.type == BT_CLASS | |
2592 | && CLASS_DATA (f->sym)->attr.codimension | |
2593 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2594 | { |
2595 | tree caf_type; | |
2596 | tree token; | |
2597 | tree offset; | |
2598 | ||
2599 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2600 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2601 | caf_type = f->sym->ts.type == BT_CLASS |
2602 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2603 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2604 | |
85c94a64 | 2605 | token = build_decl (input_location, PARM_DECL, |
2606 | create_tmp_var_name ("caf_token"), | |
2607 | build_qualified_type (pvoid_type_node, | |
2608 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2609 | if ((f->sym->ts.type != BT_CLASS |
2610 | && f->sym->as->type != AS_DEFERRED) | |
2611 | || (f->sym->ts.type == BT_CLASS | |
2612 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2613 | { |
2614 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2615 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2616 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2617 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2618 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2619 | } | |
2620 | else | |
2621 | { | |
2622 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2623 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2624 | } | |
a90fe829 | 2625 | |
85c94a64 | 2626 | DECL_CONTEXT (token) = fndecl; |
2627 | DECL_ARTIFICIAL (token) = 1; | |
2628 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2629 | TREE_READONLY (token) = 1; | |
2630 | hidden_arglist = chainon (hidden_arglist, token); | |
2631 | gfc_finish_decl (token); | |
2632 | ||
85c94a64 | 2633 | offset = build_decl (input_location, PARM_DECL, |
2634 | create_tmp_var_name ("caf_offset"), | |
2635 | gfc_array_index_type); | |
2636 | ||
d44f2f7c | 2637 | if ((f->sym->ts.type != BT_CLASS |
2638 | && f->sym->as->type != AS_DEFERRED) | |
2639 | || (f->sym->ts.type == BT_CLASS | |
2640 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2641 | { |
2642 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2643 | == NULL_TREE); | |
2644 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2645 | } | |
2646 | else | |
2647 | { | |
2648 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2649 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2650 | } | |
85c94a64 | 2651 | DECL_CONTEXT (offset) = fndecl; |
2652 | DECL_ARTIFICIAL (offset) = 1; | |
2653 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2654 | TREE_READONLY (offset) = 1; | |
2655 | hidden_arglist = chainon (hidden_arglist, offset); | |
2656 | gfc_finish_decl (offset); | |
2657 | } | |
2658 | ||
d4163395 | 2659 | arglist = chainon (arglist, parm); |
e4b2c26c | 2660 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2661 | } |
e4b2c26c | 2662 | |
465e4a95 | 2663 | /* Add the hidden string length parameters, unless the procedure |
2664 | is bind(C). */ | |
2665 | if (!sym->attr.is_bind_c) | |
2666 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2667 | |
ebe27ea2 | 2668 | gcc_assert (hidden_typelist == NULL_TREE |
2669 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2670 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2671 | } |
e4b2c26c | 2672 | |
1b716045 | 2673 | /* Do the setup necessary before generating the body of a function. */ |
2674 | ||
2675 | static void | |
2676 | trans_function_start (gfc_symbol * sym) | |
2677 | { | |
2678 | tree fndecl; | |
2679 | ||
2680 | fndecl = sym->backend_decl; | |
2681 | ||
f888a3fb | 2682 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2683 | current_function_decl = fndecl; |
2684 | ||
f888a3fb | 2685 | /* Let the world know what we're about to do. */ |
1b716045 | 2686 | announce_function (fndecl); |
2687 | ||
16a40513 | 2688 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2689 | { |
f888a3fb | 2690 | /* Create RTL for function declaration. */ |
1b716045 | 2691 | rest_of_decl_compilation (fndecl, 1, 0); |
2692 | } | |
2693 | ||
f888a3fb | 2694 | /* Create RTL for function definition. */ |
1b716045 | 2695 | make_decl_rtl (fndecl); |
2696 | ||
00cf115c | 2697 | allocate_struct_function (fndecl, false); |
1b716045 | 2698 | |
f888a3fb | 2699 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2700 | pushlevel (); |
1b716045 | 2701 | } |
2702 | ||
2703 | /* Create thunks for alternate entry points. */ | |
2704 | ||
2705 | static void | |
d896f9b3 | 2706 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2707 | { |
2708 | gfc_formal_arglist *formal; | |
2709 | gfc_formal_arglist *thunk_formal; | |
2710 | gfc_entry_list *el; | |
2711 | gfc_symbol *thunk_sym; | |
2712 | stmtblock_t body; | |
2713 | tree thunk_fndecl; | |
1b716045 | 2714 | tree tmp; |
b31f705b | 2715 | locus old_loc; |
1b716045 | 2716 | |
2717 | /* This should always be a toplevel function. */ | |
22d678e8 | 2718 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2719 | |
4671339c | 2720 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2721 | for (el = ns->entries; el; el = el->next) |
2722 | { | |
f1f41a6c | 2723 | vec<tree, va_gc> *args = NULL; |
2724 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2725 | |
1b716045 | 2726 | thunk_sym = el->sym; |
a90fe829 | 2727 | |
d896f9b3 | 2728 | build_function_decl (thunk_sym, global); |
1b716045 | 2729 | create_function_arglist (thunk_sym); |
2730 | ||
2731 | trans_function_start (thunk_sym); | |
2732 | ||
2733 | thunk_fndecl = thunk_sym->backend_decl; | |
2734 | ||
e5004242 | 2735 | gfc_init_block (&body); |
1b716045 | 2736 | |
f888a3fb | 2737 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2738 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2739 | vec_safe_push (args, tmp); |
1b716045 | 2740 | |
c6871095 | 2741 | if (thunk_sym->attr.function) |
2742 | { | |
2743 | if (gfc_return_by_reference (ns->proc_name)) | |
2744 | { | |
2745 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2746 | vec_safe_push (args, ref); |
c6871095 | 2747 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2748 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2749 | } |
2750 | } | |
2751 | ||
6777213b | 2752 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2753 | formal = formal->next) | |
1b716045 | 2754 | { |
c6871095 | 2755 | /* Ignore alternate returns. */ |
2756 | if (formal->sym == NULL) | |
2757 | continue; | |
2758 | ||
1b716045 | 2759 | /* We don't have a clever way of identifying arguments, so resort to |
2760 | a brute-force search. */ | |
6777213b | 2761 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2762 | thunk_formal; |
2763 | thunk_formal = thunk_formal->next) | |
2764 | { | |
2765 | if (thunk_formal->sym == formal->sym) | |
2766 | break; | |
2767 | } | |
2768 | ||
2769 | if (thunk_formal) | |
2770 | { | |
2771 | /* Pass the argument. */ | |
d95efb59 | 2772 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2773 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2774 | if (formal->sym->ts.type == BT_CHARACTER) |
2775 | { | |
eeebe20b | 2776 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2777 | vec_safe_push (string_args, tmp); |
1b716045 | 2778 | } |
2779 | } | |
2780 | else | |
2781 | { | |
2782 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2783 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2784 | if (formal->sym->ts.type == BT_CHARACTER) |
2785 | { | |
7d3075f6 | 2786 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2787 | vec_safe_push (string_args, tmp); |
1b716045 | 2788 | } |
2789 | } | |
2790 | } | |
2791 | ||
2792 | /* Call the master function. */ | |
f1f41a6c | 2793 | vec_safe_splice (args, string_args); |
1b716045 | 2794 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2795 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2796 | if (ns->proc_name->attr.mixed_entry_master) |
2797 | { | |
2798 | tree union_decl, field; | |
2799 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2800 | ||
e60a6f7b | 2801 | union_decl = build_decl (input_location, |
2802 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2803 | TREE_TYPE (master_type)); |
2804 | DECL_ARTIFICIAL (union_decl) = 1; | |
2805 | DECL_EXTERNAL (union_decl) = 0; | |
2806 | TREE_PUBLIC (union_decl) = 0; | |
2807 | TREE_USED (union_decl) = 1; | |
2808 | layout_decl (union_decl, 0); | |
2809 | pushdecl (union_decl); | |
2810 | ||
2811 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2812 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2813 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2814 | gfc_add_expr_to_block (&body, tmp); |
2815 | ||
2816 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2817 | field; field = DECL_CHAIN (field)) |
c6871095 | 2818 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2819 | thunk_sym->result->name) == 0) | |
2820 | break; | |
2821 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2822 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2823 | TREE_TYPE (field), union_decl, field, | |
2824 | NULL_TREE); | |
a90fe829 | 2825 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2826 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2827 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2828 | tmp = build1_v (RETURN_EXPR, tmp); |
2829 | } | |
2830 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2831 | != void_type_node) | |
2832 | { | |
fd779e1d | 2833 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2834 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2835 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2836 | tmp = build1_v (RETURN_EXPR, tmp); |
2837 | } | |
1b716045 | 2838 | gfc_add_expr_to_block (&body, tmp); |
2839 | ||
2840 | /* Finish off this function and send it for code generation. */ | |
2841 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2842 | tmp = getdecls (); |
cde2be84 | 2843 | poplevel (1, 1); |
1b716045 | 2844 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2845 | DECL_SAVED_TREE (thunk_fndecl) |
2846 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2847 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2848 | |
2849 | /* Output the GENERIC tree. */ | |
2850 | dump_function (TDI_original, thunk_fndecl); | |
2851 | ||
2852 | /* Store the end of the function, so that we get good line number | |
2853 | info for the epilogue. */ | |
2854 | cfun->function_end_locus = input_location; | |
2855 | ||
2856 | /* We're leaving the context of this function, so zap cfun. | |
2857 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2858 | tree_rest_of_compilation. */ | |
87d4aa85 | 2859 | set_cfun (NULL); |
1b716045 | 2860 | |
2861 | current_function_decl = NULL_TREE; | |
2862 | ||
35ee1c66 | 2863 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2864 | |
2865 | /* We share the symbols in the formal argument list with other entry | |
2866 | points and the master function. Clear them so that they are | |
2867 | recreated for each function. */ | |
6777213b | 2868 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2869 | formal = formal->next) | |
c6871095 | 2870 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2871 | { | |
2872 | formal->sym->backend_decl = NULL_TREE; | |
2873 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2874 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2875 | } |
2876 | ||
2877 | if (thunk_sym->attr.function) | |
1b716045 | 2878 | { |
c6871095 | 2879 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2880 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2881 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2882 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2883 | } |
2884 | } | |
b31f705b | 2885 | |
4671339c | 2886 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2887 | } |
2888 | ||
2889 | ||
2890 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2891 | points. If global is true, generate the function in the global binding |
2892 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2893 | |
2894 | void | |
d896f9b3 | 2895 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2896 | { |
2897 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2898 | build_function_decl (ns->proc_name, global); |
1b716045 | 2899 | |
f888a3fb | 2900 | /* Compile the entry thunks. */ |
1b716045 | 2901 | if (ns->entries) |
d896f9b3 | 2902 | build_entry_thunks (ns, global); |
1b716045 | 2903 | |
2904 | /* Now create the read argument list. */ | |
2905 | create_function_arglist (ns->proc_name); | |
15b28553 | 2906 | |
2907 | if (ns->omp_declare_simd) | |
2908 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2909 | } |
2910 | ||
c750cc52 | 2911 | /* Return the decl used to hold the function return value. If |
3350e716 | 2912 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2913 | |
2914 | tree | |
c750cc52 | 2915 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2916 | { |
c750cc52 | 2917 | tree decl; |
2918 | tree length; | |
2919 | tree this_fake_result_decl; | |
2920 | tree this_function_decl; | |
4ee9c684 | 2921 | |
2922 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2923 | ||
c750cc52 | 2924 | if (parent_flag) |
2925 | { | |
2926 | this_fake_result_decl = parent_fake_result_decl; | |
2927 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2928 | } | |
2929 | else | |
2930 | { | |
2931 | this_fake_result_decl = current_fake_result_decl; | |
2932 | this_function_decl = current_function_decl; | |
2933 | } | |
2934 | ||
c6871095 | 2935 | if (sym |
c750cc52 | 2936 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2937 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2938 | && sym != sym->ns->proc_name) |
2939 | { | |
e228ac8a | 2940 | tree t = NULL, var; |
c750cc52 | 2941 | if (this_fake_result_decl != NULL) |
2942 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2943 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2944 | break; | |
2945 | if (t) | |
2946 | return TREE_VALUE (t); | |
c750cc52 | 2947 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2948 | ||
2949 | if (parent_flag) | |
2950 | this_fake_result_decl = parent_fake_result_decl; | |
2951 | else | |
2952 | this_fake_result_decl = current_fake_result_decl; | |
2953 | ||
e228ac8a | 2954 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
2955 | { | |
2956 | tree field; | |
c6871095 | 2957 | |
e228ac8a | 2958 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); |
2959 | field; field = DECL_CHAIN (field)) | |
2960 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), | |
2961 | sym->name) == 0) | |
2962 | break; | |
c6871095 | 2963 | |
e228ac8a | 2964 | gcc_assert (field != NULL_TREE); |
2965 | decl = fold_build3_loc (input_location, COMPONENT_REF, | |
2966 | TREE_TYPE (field), decl, field, NULL_TREE); | |
2967 | } | |
c750cc52 | 2968 | |
2969 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2970 | if (parent_flag) | |
2971 | gfc_add_decl_to_parent_function (var); | |
2972 | else | |
2973 | gfc_add_decl_to_function (var); | |
2974 | ||
d4163395 | 2975 | SET_DECL_VALUE_EXPR (var, decl); |
2976 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2977 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2978 | |
2979 | TREE_CHAIN (this_fake_result_decl) | |
2980 | = tree_cons (get_identifier (sym->name), var, | |
2981 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2982 | return var; |
c6871095 | 2983 | } |
2984 | ||
c750cc52 | 2985 | if (this_fake_result_decl != NULL_TREE) |
2986 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2987 | |
2988 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2989 | sym is NULL. */ | |
2990 | if (!sym) | |
2991 | return NULL_TREE; | |
2992 | ||
d4163395 | 2993 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2994 | { |
eeebe20b | 2995 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2996 | length = gfc_create_string_length (sym); |
2997 | else | |
eeebe20b | 2998 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 2999 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
99042714 | 3000 | gfc_add_decl_to_function (length); |
4ee9c684 | 3001 | } |
3002 | ||
3003 | if (gfc_return_by_reference (sym)) | |
3004 | { | |
c750cc52 | 3005 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 3006 | |
c750cc52 | 3007 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 3008 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 3009 | decl = DECL_CHAIN (decl); |
4ee9c684 | 3010 | |
3011 | TREE_USED (decl) = 1; | |
3012 | if (sym->as) | |
3013 | decl = gfc_build_dummy_array_decl (sym, decl); | |
3014 | } | |
3015 | else | |
3016 | { | |
3017 | sprintf (name, "__result_%.20s", | |
c750cc52 | 3018 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 3019 | |
3350e716 | 3020 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 3021 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 3022 | VAR_DECL, get_identifier (name), |
3350e716 | 3023 | gfc_sym_type (sym)); |
3024 | else | |
1e71b314 | 3025 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 3026 | VAR_DECL, get_identifier (name), |
3350e716 | 3027 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 3028 | DECL_ARTIFICIAL (decl) = 1; |
3029 | DECL_EXTERNAL (decl) = 0; | |
3030 | TREE_PUBLIC (decl) = 0; | |
3031 | TREE_USED (decl) = 1; | |
764f1175 | 3032 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 3033 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 3034 | |
3035 | layout_decl (decl, 0); | |
cf5f881f | 3036 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 3037 | |
c750cc52 | 3038 | if (parent_flag) |
3039 | gfc_add_decl_to_parent_function (decl); | |
3040 | else | |
3041 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 3042 | } |
3043 | ||
c750cc52 | 3044 | if (parent_flag) |
3045 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3046 | else | |
3047 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 3048 | |
3049 | return decl; | |
3050 | } | |
3051 | ||
3052 | ||
3053 | /* Builds a function decl. The remaining parameters are the types of the | |
3054 | function arguments. Negative nargs indicates a varargs function. */ | |
3055 | ||
8ce86007 | 3056 | static tree |
3057 | build_library_function_decl_1 (tree name, const char *spec, | |
3058 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 3059 | { |
f1f41a6c | 3060 | vec<tree, va_gc> *arglist; |
4ee9c684 | 3061 | tree fntype; |
3062 | tree fndecl; | |
4ee9c684 | 3063 | int n; |
3064 | ||
3065 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 3066 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 3067 | |
4ee9c684 | 3068 | /* Create a list of the argument types. */ |
f1f41a6c | 3069 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 3070 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 3071 | { |
5edc3af9 | 3072 | tree argtype = va_arg (p, tree); |
f1f41a6c | 3073 | arglist->quick_push (argtype); |
4ee9c684 | 3074 | } |
3075 | ||
3076 | /* Build the function type and decl. */ | |
5edc3af9 | 3077 | if (nargs >= 0) |
3078 | fntype = build_function_type_vec (rettype, arglist); | |
3079 | else | |
3080 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 3081 | if (spec) |
3082 | { | |
3083 | tree attr_args = build_tree_list (NULL_TREE, | |
3084 | build_string (strlen (spec), spec)); | |
3085 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3086 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3087 | fntype = build_type_attribute_variant (fntype, attrs); | |
3088 | } | |
e60a6f7b | 3089 | fndecl = build_decl (input_location, |
3090 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 3091 | |
3092 | /* Mark this decl as external. */ | |
3093 | DECL_EXTERNAL (fndecl) = 1; | |
3094 | TREE_PUBLIC (fndecl) = 1; | |
3095 | ||
4ee9c684 | 3096 | pushdecl (fndecl); |
3097 | ||
b2c4af5e | 3098 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 3099 | |
3100 | return fndecl; | |
3101 | } | |
3102 | ||
8ce86007 | 3103 | /* Builds a function decl. The remaining parameters are the types of the |
3104 | function arguments. Negative nargs indicates a varargs function. */ | |
3105 | ||
3106 | tree | |
3107 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3108 | { | |
3109 | tree ret; | |
3110 | va_list args; | |
3111 | va_start (args, nargs); | |
3112 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3113 | va_end (args); | |
3114 | return ret; | |
3115 | } | |
3116 | ||
3117 | /* Builds a function decl. The remaining parameters are the types of the | |
3118 | function arguments. Negative nargs indicates a varargs function. | |
3119 | The SPEC parameter specifies the function argument and return type | |
3120 | specification according to the fnspec function type attribute. */ | |
3121 | ||
4bf69bc3 | 3122 | tree |
8ce86007 | 3123 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3124 | tree rettype, int nargs, ...) | |
3125 | { | |
3126 | tree ret; | |
3127 | va_list args; | |
3128 | va_start (args, nargs); | |
3129 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3130 | va_end (args); | |
3131 | return ret; | |
3132 | } | |
3133 | ||
4ee9c684 | 3134 | static void |
3135 | gfc_build_intrinsic_function_decls (void) | |
3136 | { | |
90ba9145 | 3137 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 3138 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3139 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3140 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3141 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3142 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3143 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3144 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3145 | |
4ee9c684 | 3146 | /* String functions. */ |
241ecdc7 | 3147 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3148 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3149 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3150 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3151 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3152 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3153 | |
3154 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3155 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3156 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3157 | gfc_charlen_type_node, pchar1_type_node, | |
3158 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3159 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3160 | |
3161 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3162 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3163 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3164 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3165 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3166 | |
3167 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3168 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3169 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3170 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3171 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3172 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3173 | |
3174 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3175 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3176 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3177 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3178 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3179 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3180 | |
3181 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3182 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3183 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3184 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3185 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3186 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3187 | |
3188 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3189 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3190 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3191 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3192 | pchar1_type_node); | |
3193 | ||
3194 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3195 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3196 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3197 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3198 | integer_type_node); | |
3199 | ||
3200 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3201 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3202 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3203 | pchar1_type_node); | |
bc351485 | 3204 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3205 | |
3206 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3207 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3208 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3209 | pchar1_type_node); | |
bc351485 | 3210 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3211 | |
3212 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3213 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3214 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3215 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3216 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3217 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3218 | |
3219 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3220 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3221 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3222 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3223 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3224 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3225 | |
3226 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3227 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3228 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3229 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3230 | pchar4_type_node); | |
bc351485 | 3231 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3232 | |
3233 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3234 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3235 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3236 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3237 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3238 | |
3239 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3240 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3241 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3242 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3243 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3244 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3245 | |
3246 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3247 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3248 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3249 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3250 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3251 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3252 | |
3253 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3254 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3255 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3256 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3257 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3258 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3259 | |
3260 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3261 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3262 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3263 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3264 | pchar4_type_node); | |
3265 | ||
3266 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3267 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3268 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3269 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3270 | integer_type_node); | |
3271 | ||
3272 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3273 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3274 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3275 | pchar4_type_node); | |
bc351485 | 3276 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3277 | |
3278 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3279 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3280 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3281 | pchar4_type_node); | |
bc351485 | 3282 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3283 | |
3284 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3285 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3286 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3287 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3288 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3289 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3290 | |
3291 | ||
3292 | /* Conversion between character kinds. */ | |
3293 | ||
241ecdc7 | 3294 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3295 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3296 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3297 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3298 | |
241ecdc7 | 3299 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3300 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3301 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3302 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3303 | |
40b806de | 3304 | /* Misc. functions. */ |
5fcc6ec2 | 3305 | |
241ecdc7 | 3306 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3307 | get_identifier (PREFIX("ttynam")), ".W", | |
3308 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3309 | integer_type_node); | |
3310 | ||
3311 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3312 | get_identifier (PREFIX("fdate")), ".W", | |
3313 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3314 | ||
3315 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3316 | get_identifier (PREFIX("ctime")), ".W", | |
3317 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3318 | gfc_int8_type_node); | |
3319 | ||
0ecc062b | 3320 | gfor_fndecl_random_init = gfc_build_library_function_decl ( |
3321 | get_identifier (PREFIX("random_init")), | |
3322 | void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node, | |
3323 | gfc_int4_type_node); | |
3324 | ||
241ecdc7 | 3325 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( |
3326 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3327 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3328 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3329 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3330 | |
3331 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3332 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3333 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3334 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3335 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3336 | |
3337 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3338 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3339 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3340 | pvoid_type_node); | |
537824d1 | 3341 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3342 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3343 | |
72ce5390 | 3344 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3345 | get_identifier (PREFIX("system_clock_4")), | |
3346 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3347 | gfc_pint4_type_node); | |
3348 | ||
3349 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3350 | get_identifier (PREFIX("system_clock_8")), | |
3351 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3352 | gfc_pint8_type_node); | |
3353 | ||
4ee9c684 | 3354 | /* Power functions. */ |
76834664 | 3355 | { |
920e54ef | 3356 | tree ctype, rtype, itype, jtype; |
3357 | int rkind, ikind, jkind; | |
3358 | #define NIKINDS 3 | |
3359 | #define NRKINDS 4 | |
3360 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3361 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3362 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3363 | ||
3364 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3365 | { |
920e54ef | 3366 | itype = gfc_get_int_type (ikinds[ikind]); |
3367 | ||
3368 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3369 | { | |
3370 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3371 | if (itype && jtype) | |
3372 | { | |
6d3cbc0c | 3373 | sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind], |
920e54ef | 3374 | ikinds[jkind]); |
3375 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3376 | gfc_build_library_function_decl (get_identifier (name), | |
3377 | jtype, 2, jtype, itype); | |
2177d98b | 3378 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3379 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3380 | } |
3381 | } | |
3382 | ||
3383 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3384 | { |
920e54ef | 3385 | rtype = gfc_get_real_type (rkinds[rkind]); |
3386 | if (rtype && itype) | |
3387 | { | |
6d3cbc0c | 3388 | sprintf (name, PREFIX("pow_r%d_i%d"), rkinds[rkind], |
920e54ef | 3389 | ikinds[ikind]); |
3390 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3391 | gfc_build_library_function_decl (get_identifier (name), | |
3392 | rtype, 2, rtype, itype); | |
2177d98b | 3393 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3394 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3395 | } |
3396 | ||
3397 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3398 | if (ctype && itype) | |
3399 | { | |
6d3cbc0c | 3400 | sprintf (name, PREFIX("pow_c%d_i%d"), rkinds[rkind], |
920e54ef | 3401 | ikinds[ikind]); |
3402 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3403 | gfc_build_library_function_decl (get_identifier (name), | |
3404 | ctype, 2,ctype, itype); | |
2177d98b | 3405 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3406 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3407 | } |
76834664 | 3408 | } |
3409 | } | |
920e54ef | 3410 | #undef NIKINDS |
3411 | #undef NRKINDS | |
76834664 | 3412 | } |
3413 | ||
241ecdc7 | 3414 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3415 | get_identifier (PREFIX("ishftc4")), | |
3416 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3417 | gfc_int4_type_node); | |
bc351485 | 3418 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3419 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3420 | |
241ecdc7 | 3421 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3422 | get_identifier (PREFIX("ishftc8")), | |
3423 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3424 | gfc_int4_type_node); | |
bc351485 | 3425 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3426 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3427 | |
920e54ef | 3428 | if (gfc_int16_type_node) |
bc351485 | 3429 | { |
3430 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3431 | get_identifier (PREFIX("ishftc16")), |
3432 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3433 | gfc_int4_type_node); | |
bc351485 | 3434 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3435 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3436 | } | |
920e54ef | 3437 | |
4e8e57b0 | 3438 | /* BLAS functions. */ |
3439 | { | |
36c921b9 | 3440 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3441 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3442 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3443 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3444 | tree pz = build_pointer_type | |
3445 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3446 | ||
3447 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3448 | (get_identifier | |
829d7a08 | 3449 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3450 | void_type_node, 15, pchar_type_node, |
3451 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3452 | ps, pint, ps, ps, pint, integer_type_node, |
3453 | integer_type_node); | |
4e8e57b0 | 3454 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3455 | (get_identifier | |
829d7a08 | 3456 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3457 | void_type_node, 15, pchar_type_node, |
3458 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3459 | pd, pint, pd, pd, pint, integer_type_node, |
3460 | integer_type_node); | |
4e8e57b0 | 3461 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3462 | (get_identifier | |
829d7a08 | 3463 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3464 | void_type_node, 15, pchar_type_node, |
3465 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3466 | pc, pint, pc, pc, pint, integer_type_node, |
3467 | integer_type_node); | |
4e8e57b0 | 3468 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3469 | (get_identifier | |
829d7a08 | 3470 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3471 | void_type_node, 15, pchar_type_node, |
3472 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3473 | pz, pint, pz, pz, pint, integer_type_node, |
3474 | integer_type_node); | |
4e8e57b0 | 3475 | } |
3476 | ||
4ee9c684 | 3477 | /* Other functions. */ |
241ecdc7 | 3478 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3479 | get_identifier (PREFIX("size0")), ".R", | |
3480 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3481 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3482 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3483 | |
3484 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3485 | get_identifier (PREFIX("size1")), ".R", | |
3486 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3487 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3488 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3489 | |
3490 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3491 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3492 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
92c9ff97 | 3493 | |
3494 | gfor_fndecl_kill_sub = gfc_build_library_function_decl ( | |
3495 | get_identifier (PREFIX ("kill_sub")), void_type_node, | |
3496 | 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node); | |
3497 | ||
3498 | gfor_fndecl_kill = gfc_build_library_function_decl ( | |
3499 | get_identifier (PREFIX ("kill")), gfc_int4_type_node, | |
3500 | 2, gfc_int4_type_node, gfc_int4_type_node); | |
4ee9c684 | 3501 | } |
3502 | ||
3503 | ||
3504 | /* Make prototypes for runtime library functions. */ | |
3505 | ||
3506 | void | |
3507 | gfc_build_builtin_function_decls (void) | |
3508 | { | |
da8fd78f | 3509 | tree gfc_int8_type_node = gfc_get_int_type (8); |
4ee9c684 | 3510 | |
241ecdc7 | 3511 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3512 | get_identifier (PREFIX("stop_numeric")), | |
dbd7773a | 3513 | void_type_node, 2, integer_type_node, boolean_type_node); |
070cc790 | 3514 | /* STOP doesn't return. */ |
98ccec97 | 3515 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3516 | ||
241ecdc7 | 3517 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3518 | get_identifier (PREFIX("stop_string")), ".R.", | |
dbd7773a | 3519 | void_type_node, 3, pchar_type_node, size_type_node, |
3520 | boolean_type_node); | |
070cc790 | 3521 | /* STOP doesn't return. */ |
241ecdc7 | 3522 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3523 | |
241ecdc7 | 3524 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3525 | get_identifier (PREFIX("error_stop_numeric")), | |
dbd7773a | 3526 | void_type_node, 2, integer_type_node, boolean_type_node); |
070cc790 | 3527 | /* ERROR STOP doesn't return. */ |
3528 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3529 | ||
241ecdc7 | 3530 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3531 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
dbd7773a | 3532 | void_type_node, 3, pchar_type_node, size_type_node, |
3533 | boolean_type_node); | |
c6cd3066 | 3534 | /* ERROR STOP doesn't return. */ |
3535 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3536 | ||
241ecdc7 | 3537 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3538 | get_identifier (PREFIX("pause_numeric")), | |
da8fd78f | 3539 | void_type_node, 1, gfc_int8_type_node); |
070cc790 | 3540 | |
241ecdc7 | 3541 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3542 | get_identifier (PREFIX("pause_string")), ".R.", | |
da8fd78f | 3543 | void_type_node, 2, pchar_type_node, size_type_node); |
4ee9c684 | 3544 | |
241ecdc7 | 3545 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3546 | get_identifier (PREFIX("runtime_error")), ".R", | |
3547 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3548 | /* The runtime_error function does not return. */ |
3549 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3550 | |
241ecdc7 | 3551 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3552 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3553 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3554 | /* The runtime_error_at function does not return. */ |
3555 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3556 | |
241ecdc7 | 3557 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3558 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3559 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3560 | ||
3561 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3562 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3563 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3564 | pchar_type_node); | |
3565 | ||
3566 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3567 | get_identifier (PREFIX("os_error")), ".R", | |
3568 | void_type_node, 1, pchar_type_node); | |
9915365e | 3569 | /* The runtime_error function does not return. */ |
3570 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3571 | ||
241ecdc7 | 3572 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3573 | get_identifier (PREFIX("set_args")), | |
3574 | void_type_node, 2, integer_type_node, | |
3575 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3576 | |
241ecdc7 | 3577 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3578 | get_identifier (PREFIX("set_fpe")), | |
3579 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3580 | |
d566c3e0 | 3581 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3582 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3583 | void_type_node, 1, pvoid_type_node); | |
3584 | ||
3585 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3586 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3587 | void_type_node, 1, pvoid_type_node); | |
3588 | ||
56c7c2d7 | 3589 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3590 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3591 | get_identifier (PREFIX("set_options")), "..R", | |
3592 | void_type_node, 2, integer_type_node, | |
3593 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3594 | |
241ecdc7 | 3595 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3596 | get_identifier (PREFIX("set_convert")), | |
3597 | void_type_node, 1, integer_type_node); | |
15774a8b | 3598 | |
241ecdc7 | 3599 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3600 | get_identifier (PREFIX("set_record_marker")), | |
3601 | void_type_node, 1, integer_type_node); | |
f23886ab | 3602 | |
241ecdc7 | 3603 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3604 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3605 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3606 | |
8ce86007 | 3607 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3608 | get_identifier (PREFIX("internal_pack")), ".r", |
3609 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3610 | |
8ce86007 | 3611 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3612 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3613 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3614 | ||
3615 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3616 | get_identifier (PREFIX("associated")), ".RR", | |
3617 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3618 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3619 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3620 | |
70b5944a | 3621 | /* Coarray library calls. */ |
4fe73152 | 3622 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3623 | { |
3624 | tree pint_type, pppchar_type; | |
3625 | ||
3626 | pint_type = build_pointer_type (integer_type_node); | |
3627 | pppchar_type | |
3628 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3629 | ||
3630 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
65cbb21d | 3631 | get_identifier (PREFIX("caf_init")), void_type_node, |
3632 | 2, pint_type, pppchar_type); | |
70b5944a | 3633 | |
3634 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3635 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3636 | ||
d44f2f7c | 3637 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
65cbb21d | 3638 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3639 | 1, integer_type_node); | |
d44f2f7c | 3640 | |
3641 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
65cbb21d | 3642 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3643 | 2, integer_type_node, integer_type_node); | |
d44f2f7c | 3644 | |
a961ca30 | 3645 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
eee0cf09 | 3646 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3647 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
5e04a38a | 3648 | pint_type, pchar_type_node, size_type_node); |
d0d776fb | 3649 | |
3650 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3d2aa0e8 | 3651 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3652 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
5e04a38a | 3653 | size_type_node); |
a961ca30 | 3654 | |
5f4a118e | 3655 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3656 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3657 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3658 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3659 | boolean_type_node, pint_type); |
5f4a118e | 3660 | |
3661 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
6d3cbc0c | 3662 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRWR", void_type_node, 11, |
65cbb21d | 3663 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3664 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6d3cbc0c | 3665 | boolean_type_node, pint_type, pvoid_type_node); |
5f4a118e | 3666 | |
3667 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
eee0cf09 | 3668 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3669 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3670 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3671 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3672 | integer_type_node, boolean_type_node, integer_type_node); | |
3673 | ||
3674 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3675 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRWR", void_type_node, |
3676 | 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3677 | pvoid_type_node, integer_type_node, integer_type_node, | |
3678 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
eee0cf09 | 3679 | |
3680 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3681 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRWR", |
3682 | void_type_node, 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3683 | pvoid_type_node, integer_type_node, integer_type_node, | |
3684 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
eee0cf09 | 3685 | |
3686 | gfor_fndecl_caf_sendget_by_ref | |
3687 | = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3688 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWWRR", |
3689 | void_type_node, 13, pvoid_type_node, integer_type_node, | |
eee0cf09 | 3690 | pvoid_type_node, pvoid_type_node, integer_type_node, |
3691 | pvoid_type_node, integer_type_node, integer_type_node, | |
7d96ee9e | 3692 | boolean_type_node, pint_type, pint_type, integer_type_node, |
3693 | integer_type_node); | |
5f4a118e | 3694 | |
70b5944a | 3695 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3696 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
5e04a38a | 3697 | 3, pint_type, pchar_type_node, size_type_node); |
70b5944a | 3698 | |
71cf3ae6 | 3699 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3700 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
5e04a38a | 3701 | 3, pint_type, pchar_type_node, size_type_node); |
71cf3ae6 | 3702 | |
70b5944a | 3703 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3704 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3705 | 5, integer_type_node, pint_type, pint_type, | |
5e04a38a | 3706 | pchar_type_node, size_type_node); |
70b5944a | 3707 | |
3708 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3709 | get_identifier (PREFIX("caf_error_stop")), | |
5e04a38a | 3710 | void_type_node, 1, integer_type_node); |
70b5944a | 3711 | /* CAF's ERROR STOP doesn't return. */ |
3712 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3713 | ||
3714 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3715 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
5e04a38a | 3716 | void_type_node, 2, pchar_type_node, size_type_node); |
70b5944a | 3717 | /* CAF's ERROR STOP doesn't return. */ |
3718 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3719 | |
ba4d9b7e | 3720 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3721 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
5e04a38a | 3722 | void_type_node, 1, integer_type_node); |
ba4d9b7e | 3723 | /* CAF's STOP doesn't return. */ |
3724 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3725 | ||
3726 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3727 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
5e04a38a | 3728 | void_type_node, 2, pchar_type_node, size_type_node); |
ba4d9b7e | 3729 | /* CAF's STOP doesn't return. */ |
3730 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3731 | ||
97b9ac34 | 3732 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3733 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3734 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3735 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3736 | |
3737 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3738 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3739 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3740 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3741 | |
3742 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3743 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3744 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3745 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
97b9ac34 | 3746 | integer_type_node, integer_type_node); |
3747 | ||
3748 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3749 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3750 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3751 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3752 | integer_type_node, integer_type_node); | |
3753 | ||
498b946e | 3754 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3755 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3756 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3757 | pint_type, pint_type, pchar_type_node, size_type_node); |
498b946e | 3758 | |
3759 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3760 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3761 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
5e04a38a | 3762 | pint_type, pchar_type_node, size_type_node); |
498b946e | 3763 | |
bd47f0bc | 3764 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3765 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3766 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3767 | pint_type, pchar_type_node, size_type_node); |
bd47f0bc | 3768 | |
3769 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3770 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3771 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3772 | pint_type, pchar_type_node, size_type_node); |
bd47f0bc | 3773 | |
3774 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3775 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3776 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3777 | pint_type, pint_type); | |
3778 | ||
d9ca273e | 3779 | gfor_fndecl_caf_fail_image = gfc_build_library_function_decl ( |
3780 | get_identifier (PREFIX("caf_fail_image")), void_type_node, 0); | |
3781 | /* CAF's FAIL doesn't return. */ | |
3782 | TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1; | |
3783 | ||
3784 | gfor_fndecl_caf_failed_images | |
3785 | = gfc_build_library_function_decl_with_spec ( | |
3786 | get_identifier (PREFIX("caf_failed_images")), "WRR", | |
3787 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3788 | integer_type_node); | |
3789 | ||
6d3cbc0c | 3790 | gfor_fndecl_caf_form_team |
3791 | = gfc_build_library_function_decl_with_spec ( | |
3792 | get_identifier (PREFIX("caf_form_team")), "RWR", | |
3793 | void_type_node, 3, integer_type_node, ppvoid_type_node, | |
3794 | integer_type_node); | |
3795 | ||
3796 | gfor_fndecl_caf_change_team | |
3797 | = gfc_build_library_function_decl_with_spec ( | |
3798 | get_identifier (PREFIX("caf_change_team")), "RR", | |
3799 | void_type_node, 2, ppvoid_type_node, | |
3800 | integer_type_node); | |
3801 | ||
3802 | gfor_fndecl_caf_end_team | |
3803 | = gfc_build_library_function_decl ( | |
3804 | get_identifier (PREFIX("caf_end_team")), void_type_node, 0); | |
3805 | ||
3806 | gfor_fndecl_caf_get_team | |
3807 | = gfc_build_library_function_decl_with_spec ( | |
3808 | get_identifier (PREFIX("caf_get_team")), "R", | |
3809 | void_type_node, 1, integer_type_node); | |
3810 | ||
3811 | gfor_fndecl_caf_sync_team | |
3812 | = gfc_build_library_function_decl_with_spec ( | |
3813 | get_identifier (PREFIX("caf_sync_team")), "RR", | |
3814 | void_type_node, 2, ppvoid_type_node, | |
3815 | integer_type_node); | |
3816 | ||
3817 | gfor_fndecl_caf_team_number | |
3818 | = gfc_build_library_function_decl_with_spec ( | |
3819 | get_identifier (PREFIX("caf_team_number")), "R", | |
3820 | integer_type_node, 1, integer_type_node); | |
3821 | ||
d9ca273e | 3822 | gfor_fndecl_caf_image_status |
3823 | = gfc_build_library_function_decl_with_spec ( | |
3824 | get_identifier (PREFIX("caf_image_status")), "RR", | |
3825 | integer_type_node, 2, integer_type_node, ppvoid_type_node); | |
3826 | ||
3827 | gfor_fndecl_caf_stopped_images | |
3828 | = gfc_build_library_function_decl_with_spec ( | |
3829 | get_identifier (PREFIX("caf_stopped_images")), "WRR", | |
3830 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3831 | integer_type_node); | |
3832 | ||
52306a18 | 3833 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3834 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3835 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
5e04a38a | 3836 | pint_type, pchar_type_node, size_type_node); |
52306a18 | 3837 | |
79ed4a8e | 3838 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3839 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3840 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
5e04a38a | 3841 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
79ed4a8e | 3842 | |
3843 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3844 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3845 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
5e04a38a | 3846 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
79ed4a8e | 3847 | |
e39efcef | 3848 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3849 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3850 | void_type_node, 8, pvoid_type_node, | |
65cbb21d | 3851 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
e39efcef | 3852 | NULL_TREE)), |
3853 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
5e04a38a | 3854 | integer_type_node, size_type_node); |
e39efcef | 3855 | |
79ed4a8e | 3856 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3857 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3858 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
5e04a38a | 3859 | pint_type, pchar_type_node, size_type_node); |
3d2aa0e8 | 3860 | |
3861 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3862 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3863 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3864 | pvoid_type_node); | |
70b5944a | 3865 | } |
3866 | ||
4ee9c684 | 3867 | gfc_build_intrinsic_function_decls (); |
3868 | gfc_build_intrinsic_lib_fndecls (); | |
3869 | gfc_build_io_library_fndecls (); | |
3870 | } | |
3871 | ||
3872 | ||
231e961a | 3873 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3874 | |
c5faa799 | 3875 | static void |
3876 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3877 | gfc_wrapped_block *block) | |
4ee9c684 | 3878 | { |
c5faa799 | 3879 | stmtblock_t init; |
4ee9c684 | 3880 | |
b9c7fce7 | 3881 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3882 | |
c5faa799 | 3883 | gfc_start_block (&init); |
4ee9c684 | 3884 | |
3885 | /* Evaluate the string length expression. */ | |
c5faa799 | 3886 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3887 | |
c5faa799 | 3888 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3889 | |
c5faa799 | 3890 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3891 | } |
3892 | ||
3893 | ||
3894 | /* Allocate and cleanup an automatic character variable. */ | |
3895 | ||
c5faa799 | 3896 | static void |
3897 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3898 | { |
c5faa799 | 3899 | stmtblock_t init; |
4ee9c684 | 3900 | tree decl; |
4ee9c684 | 3901 | tree tmp; |
3902 | ||
22d678e8 | 3903 | gcc_assert (sym->backend_decl); |
eeebe20b | 3904 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3905 | |
3714c8b6 | 3906 | gfc_init_block (&init); |
4ee9c684 | 3907 | |
3908 | /* Evaluate the string length expression. */ | |
c5faa799 | 3909 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3910 | |
c5faa799 | 3911 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3912 | |
4ee9c684 | 3913 | decl = sym->backend_decl; |
3914 | ||
afcf285e | 3915 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3916 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3917 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3918 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3919 | |
c5faa799 | 3920 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3921 | } |
3922 | ||
c8f1568f | 3923 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3924 | ||
c5faa799 | 3925 | static void |
3926 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3927 | { |
c5faa799 | 3928 | stmtblock_t init; |
c8f1568f | 3929 | |
3930 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3931 | gfc_start_block (&init); |
c8f1568f | 3932 | |
3933 | /* Set the initial value to length. See the comments in | |
3934 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3935 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3936 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3937 | |
c5faa799 | 3938 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3939 | } |
3940 | ||
d4163395 | 3941 | static void |
3942 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3943 | { | |
3944 | tree t = *tp, var, val; | |
3945 | ||
3946 | if (t == NULL || t == error_mark_node) | |
3947 | return; | |
3948 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3949 | return; | |
3950 | ||
3951 | if (TREE_CODE (t) == SAVE_EXPR) | |
3952 | { | |
3953 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3954 | { | |
3955 | *tp = TREE_OPERAND (t, 0); | |
3956 | return; | |
3957 | } | |
3958 | val = TREE_OPERAND (t, 0); | |
3959 | } | |
3960 | else | |
3961 | val = t; | |
3962 | ||
3963 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3964 | gfc_add_decl_to_function (var); | |
1ec957b0 | 3965 | gfc_add_modify (body, var, unshare_expr (val)); |
d4163395 | 3966 | if (TREE_CODE (t) == SAVE_EXPR) |
3967 | TREE_OPERAND (t, 0) = var; | |
3968 | *tp = var; | |
3969 | } | |
3970 | ||
3971 | static void | |
3972 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3973 | { | |
3974 | tree t; | |
3975 | ||
3976 | if (type == NULL || type == error_mark_node) | |
3977 | return; | |
3978 | ||
3979 | type = TYPE_MAIN_VARIANT (type); | |
3980 | ||
3981 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3982 | { | |
3983 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3984 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3985 | ||
3986 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3987 | { | |
3988 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3989 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3990 | } | |
3991 | } | |
3992 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3993 | { | |
3994 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3995 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3996 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3997 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3998 | ||
3999 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
4000 | { | |
4001 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
4002 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
4003 | } | |
4004 | } | |
4005 | } | |
4006 | ||
4007 | /* Make sure all type sizes and array domains are either constant, | |
4008 | or variable or parameter decls. This is a simplified variant | |
4009 | of gimplify_type_sizes, but we can't use it here, as none of the | |
4010 | variables in the expressions have been gimplified yet. | |
4011 | As type sizes and domains for various variable length arrays | |
4012 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
4013 | time, without this routine gimplify_type_sizes in the middle-end | |
4014 | could result in the type sizes being gimplified earlier than where | |
4015 | those variables are initialized. */ | |
4016 | ||
4017 | void | |
4018 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
4019 | { | |
4020 | tree type = TREE_TYPE (sym->backend_decl); | |
4021 | ||
4022 | if (TREE_CODE (type) == FUNCTION_TYPE | |
4023 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
4024 | { | |
4025 | if (! current_fake_result_decl) | |
4026 | return; | |
4027 | ||
4028 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
4029 | } | |
4030 | ||
4031 | while (POINTER_TYPE_P (type)) | |
4032 | type = TREE_TYPE (type); | |
4033 | ||
4034 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
4035 | { | |
4036 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
4037 | ||
4038 | while (POINTER_TYPE_P (etype)) | |
4039 | etype = TREE_TYPE (etype); | |
4040 | ||
4041 | gfc_trans_vla_type_sizes_1 (etype, body); | |
4042 | } | |
4043 | ||
4044 | gfc_trans_vla_type_sizes_1 (type, body); | |
4045 | } | |
4046 | ||
4ee9c684 | 4047 | |
f0d4969f | 4048 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 4049 | and using trans_assignment to do the work. Set dealloc to false |
4050 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 4051 | void |
4052 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 4053 | { |
f0d4969f | 4054 | gfc_expr *e; |
87114d2e | 4055 | tree tmp; |
4056 | tree present; | |
4057 | ||
c5faa799 | 4058 | gcc_assert (block); |
4059 | ||
f0efd2e8 | 4060 | /* Initialization of PDTs is done elsewhere. */ |
4061 | if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
4062 | return; | |
4063 | ||
f0d4969f | 4064 | gcc_assert (!sym->attr.allocatable); |
4065 | gfc_set_sym_referenced (sym); | |
4066 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 4067 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 4068 | if (sym->attr.dummy && (sym->attr.optional |
4069 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 4070 | { |
f0d4969f | 4071 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 4072 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
4073 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 4074 | } |
c5faa799 | 4075 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 4076 | gfc_free_expr (e); |
87114d2e | 4077 | } |
4078 | ||
4079 | ||
8714fc76 | 4080 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
4081 | them their default initializer, if they do not have allocatable | |
293d72e0 | 4082 | components, they have their allocatable components deallocated. */ |
8714fc76 | 4083 | |
c5faa799 | 4084 | static void |
4085 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 4086 | { |
c5faa799 | 4087 | stmtblock_t init; |
f0d4969f | 4088 | gfc_formal_arglist *f; |
8714fc76 | 4089 | tree tmp; |
5907c3ea | 4090 | tree present; |
f0d4969f | 4091 | |
c5faa799 | 4092 | gfc_init_block (&init); |
6777213b | 4093 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 4094 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 4095 | && !f->sym->attr.pointer |
4096 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 4097 | { |
942ba353 | 4098 | tmp = NULL_TREE; |
4099 | ||
4100 | /* Note: Allocatables are excluded as they are already handled | |
4101 | by the caller. */ | |
4102 | if (!f->sym->attr.allocatable | |
4103 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 4104 | { |
942ba353 | 4105 | stmtblock_t block; |
4106 | gfc_expr *e; | |
4107 | ||
4108 | gfc_init_block (&block); | |
4109 | f->sym->attr.referenced = 1; | |
4110 | e = gfc_lval_expr_from_sym (f->sym); | |
4111 | gfc_add_finalizer_call (&block, e); | |
4112 | gfc_free_expr (e); | |
4113 | tmp = gfc_finish_block (&block); | |
4114 | } | |
5907c3ea | 4115 | |
942ba353 | 4116 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4117 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4118 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4119 | f->sym->backend_decl, | |
4120 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 4121 | |
942ba353 | 4122 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4123 | || f->sym->ns->proc_name->attr.entry_master)) | |
4124 | { | |
4125 | present = gfc_conv_expr_present (f->sym); | |
4126 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4127 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 4128 | } |
942ba353 | 4129 | |
4130 | if (tmp != NULL_TREE) | |
4131 | gfc_add_expr_to_block (&init, tmp); | |
4132 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 4133 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 4134 | } |
c56d57d6 | 4135 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4136 | && f->sym->ts.type == BT_CLASS | |
4137 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 4138 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 4139 | { |
942ba353 | 4140 | stmtblock_t block; |
4141 | gfc_expr *e; | |
4142 | ||
4143 | gfc_init_block (&block); | |
4144 | f->sym->attr.referenced = 1; | |
4145 | e = gfc_lval_expr_from_sym (f->sym); | |
4146 | gfc_add_finalizer_call (&block, e); | |
4147 | gfc_free_expr (e); | |
4148 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 4149 | |
4150 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4151 | { | |
4152 | present = gfc_conv_expr_present (f->sym); | |
4153 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4154 | present, tmp, | |
4155 | build_empty_stmt (input_location)); | |
4156 | } | |
4157 | ||
4158 | gfc_add_expr_to_block (&init, tmp); | |
4159 | } | |
f0d4969f | 4160 | |
c5faa799 | 4161 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 4162 | } |
4163 | ||
87114d2e | 4164 | |
b345a09f | 4165 | /* Helper function to manage deferred string lengths. */ |
4166 | ||
4167 | static tree | |
4168 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4169 | locus *loc) | |
4170 | { | |
4171 | tree tmp; | |
4172 | ||
4173 | /* Character length passed by reference. */ | |
4174 | tmp = sym->ts.u.cl->passed_length; | |
4175 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4176 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4177 | ||
4178 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4179 | /* Zero the string length when entering the scope. */ | |
4180 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4181 | build_int_cst (gfc_charlen_type_node, 0)); | |
4182 | else | |
4183 | { | |
4184 | tree tmp2; | |
4185 | ||
4186 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4187 | gfc_charlen_type_node, | |
4188 | sym->ts.u.cl->backend_decl, tmp); | |
4189 | if (sym->attr.optional) | |
4190 | { | |
4191 | tree present = gfc_conv_expr_present (sym); | |
4192 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4193 | void_type_node, present, tmp2, | |
4194 | build_empty_stmt (input_location)); | |
4195 | } | |
4196 | gfc_add_expr_to_block (init, tmp2); | |
4197 | } | |
4198 | ||
4199 | gfc_restore_backend_locus (loc); | |
4200 | ||
4201 | /* Pass the final character length back. */ | |
4202 | if (sym->attr.intent != INTENT_IN) | |
4203 | { | |
4204 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4205 | gfc_charlen_type_node, tmp, | |
4206 | sym->ts.u.cl->backend_decl); | |
4207 | if (sym->attr.optional) | |
4208 | { | |
4209 | tree present = gfc_conv_expr_present (sym); | |
4210 | tmp = build3_loc (input_location, COND_EXPR, | |
4211 | void_type_node, present, tmp, | |
4212 | build_empty_stmt (input_location)); | |
4213 | } | |
4214 | } | |
4215 | else | |
4216 | tmp = NULL_TREE; | |
4217 | ||
4218 | return tmp; | |
4219 | } | |
4220 | ||
9ead5324 | 4221 | |
4222 | /* Get the result expression for a procedure. */ | |
4223 | ||
4224 | static tree | |
4225 | get_proc_result (gfc_symbol* sym) | |
4226 | { | |
4227 | if (sym->attr.subroutine || sym == sym->result) | |
4228 | { | |
4229 | if (current_fake_result_decl != NULL) | |
4230 | return TREE_VALUE (current_fake_result_decl); | |
4231 | ||
4232 | return NULL_TREE; | |
4233 | } | |
4234 | ||
4235 | return sym->result->backend_decl; | |
4236 | } | |
4237 | ||
4238 | ||
4ee9c684 | 4239 | /* Generate function entry and exit code, and add it to the function body. |
4240 | This includes: | |
f888a3fb | 4241 | Allocation and initialization of array variables. |
4ee9c684 | 4242 | Allocation of character string variables. |
c8f1568f | 4243 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 4244 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 4245 | Initialization of ASSOCIATE names. |
0a96a7cc | 4246 | Automatic deallocation. */ |
4ee9c684 | 4247 | |
89ac8ba1 | 4248 | void |
4249 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 4250 | { |
4251 | locus loc; | |
4252 | gfc_symbol *sym; | |
d4163395 | 4253 | gfc_formal_arglist *f; |
c5faa799 | 4254 | stmtblock_t tmpblock; |
25dd7350 | 4255 | bool seen_trans_deferred_array = false; |
9d958d5b | 4256 | bool is_pdt_type = false; |
617125a6 | 4257 | tree tmp = NULL; |
4258 | gfc_expr *e; | |
4259 | gfc_se se; | |
4260 | stmtblock_t init; | |
4ee9c684 | 4261 | |
4262 | /* Deal with implicit return variables. Explicit return variables will | |
4263 | already have been added. */ | |
4264 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4265 | { | |
4266 | if (!current_fake_result_decl) | |
4267 | { | |
c6871095 | 4268 | gfc_entry_list *el = NULL; |
4269 | if (proc_sym->attr.entry_master) | |
4270 | { | |
4271 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4272 | if (el->sym != el->sym->result) | |
4273 | break; | |
4274 | } | |
fa7b6574 | 4275 | /* TODO: move to the appropriate place in resolve.c. */ |
8b72061f | 4276 | if (warn_return_type > 0 && el == NULL) |
4166acc7 | 4277 | gfc_warning (OPT_Wreturn_type, |
4278 | "Return value of function %qs at %L not set", | |
fa7b6574 | 4279 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 4280 | } |
c6871095 | 4281 | else if (proc_sym->as) |
4ee9c684 | 4282 | { |
d4163395 | 4283 | tree result = TREE_VALUE (current_fake_result_decl); |
9da84a54 | 4284 | gfc_save_backend_locus (&loc); |
4285 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4286 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 4287 | |
4288 | /* An automatic character length, pointer array result. */ | |
4289 | if (proc_sym->ts.type == BT_CHARACTER | |
fe732a9b | 4290 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
b345a09f | 4291 | { |
4292 | tmp = NULL; | |
4293 | if (proc_sym->ts.deferred) | |
4294 | { | |
b345a09f | 4295 | gfc_start_block (&init); |
4296 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4297 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4298 | } | |
4299 | else | |
4300 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4301 | } | |
4ee9c684 | 4302 | } |
4303 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4304 | { | |
617125a6 | 4305 | if (proc_sym->ts.deferred) |
4306 | { | |
4307 | tmp = NULL; | |
da2c4122 | 4308 | gfc_save_backend_locus (&loc); |
4309 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 4310 | gfc_start_block (&init); |
4311 | /* Zero the string length on entry. */ | |
4312 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4313 | build_int_cst (gfc_charlen_type_node, 0)); | |
4314 | /* Null the pointer. */ | |
4315 | e = gfc_lval_expr_from_sym (proc_sym); | |
4316 | gfc_init_se (&se, NULL); | |
4317 | se.want_pointer = 1; | |
4318 | gfc_conv_expr (&se, e); | |
4319 | gfc_free_expr (e); | |
4320 | tmp = se.expr; | |
4321 | gfc_add_modify (&init, tmp, | |
4322 | fold_convert (TREE_TYPE (se.expr), | |
4323 | null_pointer_node)); | |
da2c4122 | 4324 | gfc_restore_backend_locus (&loc); |
617125a6 | 4325 | |
4326 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 4327 | tmp = proc_sym->ts.u.cl->backend_decl; |
b345a09f | 4328 | if (TREE_CODE (tmp) != INDIRECT_REF |
4329 | && proc_sym->ts.u.cl->passed_length) | |
ddcfeaf1 | 4330 | { |
a4731200 | 4331 | tmp = proc_sym->ts.u.cl->passed_length; |
4332 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
a4731200 | 4333 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
9f4d9f83 | 4334 | TREE_TYPE (tmp), tmp, |
4335 | fold_convert | |
4336 | (TREE_TYPE (tmp), | |
4337 | proc_sym->ts.u.cl->backend_decl)); | |
ddcfeaf1 | 4338 | } |
4339 | else | |
4340 | tmp = NULL_TREE; | |
4341 | ||
617125a6 | 4342 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4343 | } | |
fe732a9b | 4344 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
89ac8ba1 | 4345 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4346 | } |
4347 | else | |
829d7a08 | 4348 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4349 | } |
9ead5324 | 4350 | else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym)) |
4351 | { | |
4352 | /* Nullify explicit return class arrays on entry. */ | |
4353 | tree type; | |
4354 | tmp = get_proc_result (proc_sym); | |
4355 | if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp))) | |
4356 | { | |
4357 | gfc_start_block (&init); | |
4358 | tmp = gfc_class_data_get (tmp); | |
4359 | type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp)); | |
4360 | gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0)); | |
4361 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); | |
4362 | } | |
4363 | } | |
4364 | ||
4ee9c684 | 4365 | |
87114d2e | 4366 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4367 | should be done here so that the offsets and lbounds of arrays | |
4368 | are available. */ | |
da2c4122 | 4369 | gfc_save_backend_locus (&loc); |
4370 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4371 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4372 | gfc_restore_backend_locus (&loc); |
87114d2e | 4373 | |
4ee9c684 | 4374 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4375 | { | |
6b3ceb4e | 4376 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4377 | && (sym->ts.u.derived->attr.alloc_comp | |
4378 | || gfc_is_finalizable (sym->ts.u.derived, | |
4379 | NULL)); | |
8f3f9eab | 4380 | if (sym->assoc) |
3c82e013 | 4381 | continue; |
4382 | ||
9d958d5b | 4383 | if (sym->ts.type == BT_DERIVED |
4384 | && sym->ts.u.derived | |
4385 | && sym->ts.u.derived->attr.pdt_type) | |
4386 | { | |
4387 | is_pdt_type = true; | |
4388 | gfc_init_block (&tmpblock); | |
4389 | if (!(sym->attr.dummy | |
4390 | || sym->attr.pointer | |
4391 | || sym->attr.allocatable)) | |
4392 | { | |
4393 | tmp = gfc_allocate_pdt_comp (sym->ts.u.derived, | |
4394 | sym->backend_decl, | |
4395 | sym->as ? sym->as->rank : 0, | |
4396 | sym->param_list); | |
4397 | gfc_add_expr_to_block (&tmpblock, tmp); | |
2222c3ab | 4398 | if (!sym->attr.result) |
4399 | tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived, | |
4400 | sym->backend_decl, | |
4401 | sym->as ? sym->as->rank : 0); | |
4402 | else | |
4403 | tmp = NULL_TREE; | |
9d958d5b | 4404 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4405 | } | |
4406 | else if (sym->attr.dummy) | |
4407 | { | |
4408 | tmp = gfc_check_pdt_dummy (sym->ts.u.derived, | |
4409 | sym->backend_decl, | |
4410 | sym->as ? sym->as->rank : 0, | |
4411 | sym->param_list); | |
4412 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4413 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4414 | } | |
4415 | } | |
4416 | else if (sym->ts.type == BT_CLASS | |
4417 | && CLASS_DATA (sym)->ts.u.derived | |
4418 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type) | |
4419 | { | |
4420 | gfc_component *data = CLASS_DATA (sym); | |
4421 | is_pdt_type = true; | |
4422 | gfc_init_block (&tmpblock); | |
4423 | if (!(sym->attr.dummy | |
4424 | || CLASS_DATA (sym)->attr.pointer | |
4425 | || CLASS_DATA (sym)->attr.allocatable)) | |
4426 | { | |
4427 | tmp = gfc_class_data_get (sym->backend_decl); | |
4428 | tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp, | |
4429 | data->as ? data->as->rank : 0, | |
4430 | sym->param_list); | |
4431 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4432 | tmp = gfc_class_data_get (sym->backend_decl); | |
2222c3ab | 4433 | if (!sym->attr.result) |
4434 | tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp, | |
4435 | data->as ? data->as->rank : 0); | |
4436 | else | |
4437 | tmp = NULL_TREE; | |
9d958d5b | 4438 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4439 | } | |
4440 | else if (sym->attr.dummy) | |
4441 | { | |
4442 | tmp = gfc_class_data_get (sym->backend_decl); | |
4443 | tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp, | |
4444 | data->as ? data->as->rank : 0, | |
4445 | sym->param_list); | |
4446 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4447 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4448 | } | |
4449 | } | |
4450 | ||
47e6a59a | 4451 | if (sym->attr.pointer && sym->attr.dimension |
0a5fd921 | 4452 | && sym->attr.save == SAVE_NONE |
47e6a59a | 4453 | && !sym->attr.use_assoc |
4454 | && !sym->attr.host_assoc | |
4455 | && !sym->attr.dummy | |
4456 | && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))) | |
a56d63bc | 4457 | { |
4458 | gfc_init_block (&tmpblock); | |
47e6a59a | 4459 | gfc_conv_descriptor_span_set (&tmpblock, sym->backend_decl, |
4460 | build_int_cst (gfc_array_index_type, 0)); | |
a56d63bc | 4461 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
4462 | NULL_TREE); | |
4463 | } | |
4464 | ||
85ae3cab | 4465 | if (sym->ts.type == BT_CLASS |
eb106faf | 4466 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4467 | && CLASS_DATA (sym)->attr.allocatable) |
4468 | { | |
4469 | tree vptr; | |
4470 | ||
4471 | if (UNLIMITED_POLY (sym)) | |
4472 | vptr = null_pointer_node; | |
4473 | else | |
4474 | { | |
4475 | gfc_symbol *vsym; | |
4476 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4477 | vptr = gfc_get_symbol_decl (vsym); | |
4478 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4479 | } | |
4480 | ||
4481 | if (CLASS_DATA (sym)->attr.dimension | |
4482 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4483 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4484 | { |
4485 | tmp = gfc_class_data_get (sym->backend_decl); | |
4486 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4487 | } | |
4488 | else | |
4489 | tmp = null_pointer_node; | |
4490 | ||
4491 | DECL_INITIAL (sym->backend_decl) | |
4492 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4493 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4494 | } | |
b345a09f | 4495 | else if ((sym->attr.dimension || sym->attr.codimension |
4496 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
4ee9c684 | 4497 | { |
c6793847 | 4498 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4499 | symbol_attribute *array_attr; | |
4500 | gfc_array_spec *as; | |
b345a09f | 4501 | array_type type_of_array; |
c6793847 | 4502 | |
4503 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4504 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4505 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
b345a09f | 4506 | type_of_array = as->type; |
4507 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4508 | type_of_array = AS_EXPLICIT; | |
4509 | switch (type_of_array) | |
4ee9c684 | 4510 | { |
4511 | case AS_EXPLICIT: | |
4512 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4513 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4514 | /* Allocatable and pointer arrays need to processed |
4515 | explicitly. */ | |
4516 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4517 | || (sym->ts.type == BT_CLASS | |
4518 | && CLASS_DATA (sym)->attr.class_pointer) | |
4519 | || array_attr->allocatable) | |
4ee9c684 | 4520 | { |
4521 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4522 | { |
4523 | gfc_save_backend_locus (&loc); | |
4524 | gfc_set_backend_locus (&sym->declared_at); | |
4525 | gfc_trans_static_array_pointer (sym); | |
4526 | gfc_restore_backend_locus (&loc); | |
4527 | } | |
4ee9c684 | 4528 | else |
25dd7350 | 4529 | { |
4530 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4531 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4532 | } |
4ee9c684 | 4533 | } |
c6793847 | 4534 | else if (sym->attr.codimension |
4535 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4536 | { |
4537 | gfc_init_block (&tmpblock); | |
4538 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4539 | &tmpblock, sym); | |
4540 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4541 | NULL_TREE); | |
4542 | continue; | |
4543 | } | |
197423f5 | 4544 | else |
4ee9c684 | 4545 | { |
da2c4122 | 4546 | gfc_save_backend_locus (&loc); |
4547 | gfc_set_backend_locus (&sym->declared_at); | |
4548 | ||
6b3ceb4e | 4549 | if (alloc_comp_or_fini) |
25dd7350 | 4550 | { |
4551 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4552 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4553 | } |
f0d4969f | 4554 | else if (sym->ts.type == BT_DERIVED |
4555 | && sym->value | |
4556 | && !sym->attr.data | |
4557 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4558 | { |
4559 | gfc_start_block (&tmpblock); | |
4560 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4561 | gfc_add_init_cleanup (block, |
c5faa799 | 4562 | gfc_finish_block (&tmpblock), |
4563 | NULL_TREE); | |
4564 | } | |
25dd7350 | 4565 | |
c5faa799 | 4566 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4567 | sym, block); |
4671339c | 4568 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4569 | } |
4570 | break; | |
4571 | ||
4572 | case AS_ASSUMED_SIZE: | |
4573 | /* Must be a dummy parameter. */ | |
c6793847 | 4574 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4575 | |
4576 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4577 | if (sym->attr.dummy) |
89ac8ba1 | 4578 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4579 | break; |
4ee9c684 | 4580 | |
4581 | case AS_ASSUMED_SHAPE: | |
4582 | /* Must be a dummy parameter. */ | |
22d678e8 | 4583 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4584 | |
89ac8ba1 | 4585 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4586 | break; |
4587 | ||
f00f6dd6 | 4588 | case AS_ASSUMED_RANK: |
4ee9c684 | 4589 | case AS_DEFERRED: |
25dd7350 | 4590 | seen_trans_deferred_array = true; |
89ac8ba1 | 4591 | gfc_trans_deferred_array (sym, block); |
b345a09f | 4592 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4593 | && sym->attr.result) | |
4594 | { | |
4595 | gfc_start_block (&init); | |
4596 | gfc_save_backend_locus (&loc); | |
4597 | gfc_set_backend_locus (&sym->declared_at); | |
4598 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4599 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4600 | } | |
4ee9c684 | 4601 | break; |
4602 | ||
4603 | default: | |
22d678e8 | 4604 | gcc_unreachable (); |
4ee9c684 | 4605 | } |
6b3ceb4e | 4606 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4607 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4608 | } |
fd23cc08 | 4609 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4610 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4611 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4612 | continue; |
617125a6 | 4613 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4614 | && (sym->attr.allocatable |
b345a09f | 4615 | || (sym->attr.pointer && sym->attr.result) |
456dd7d6 | 4616 | || (sym->ts.type == BT_CLASS |
4617 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4618 | { |
eb106faf | 4619 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4620 | { |
d0d776fb | 4621 | tree descriptor = NULL_TREE; |
4622 | ||
da2c4122 | 4623 | gfc_save_backend_locus (&loc); |
4624 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4625 | gfc_start_block (&init); |
617125a6 | 4626 | |
9fe80e30 | 4627 | if (sym->ts.type == BT_CHARACTER |
4628 | && sym->attr.allocatable | |
4629 | && !sym->attr.dimension | |
4630 | && sym->ts.u.cl && sym->ts.u.cl->length | |
4631 | && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE) | |
4632 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); | |
4633 | ||
b345a09f | 4634 | if (!sym->attr.pointer) |
617125a6 | 4635 | { |
b345a09f | 4636 | /* Nullify and automatic deallocation of allocatable |
4637 | scalars. */ | |
4638 | e = gfc_lval_expr_from_sym (sym); | |
4639 | if (sym->ts.type == BT_CLASS) | |
4640 | gfc_add_data_component (e); | |
4641 | ||
4642 | gfc_init_se (&se, NULL); | |
4643 | if (sym->ts.type != BT_CLASS | |
4644 | || sym->ts.u.derived->attr.dimension | |
4645 | || sym->ts.u.derived->attr.codimension) | |
883d6776 | 4646 | { |
b345a09f | 4647 | se.want_pointer = 1; |
4648 | gfc_conv_expr (&se, e); | |
4649 | } | |
4650 | else if (sym->ts.type == BT_CLASS | |
4651 | && !CLASS_DATA (sym)->attr.dimension | |
4652 | && !CLASS_DATA (sym)->attr.codimension) | |
4653 | { | |
4654 | se.want_pointer = 1; | |
4655 | gfc_conv_expr (&se, e); | |
883d6776 | 4656 | } |
617125a6 | 4657 | else |
883d6776 | 4658 | { |
b345a09f | 4659 | se.descriptor_only = 1; |
4660 | gfc_conv_expr (&se, e); | |
4661 | descriptor = se.expr; | |
4662 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4663 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
883d6776 | 4664 | } |
b345a09f | 4665 | gfc_free_expr (e); |
617125a6 | 4666 | |
b345a09f | 4667 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
883d6776 | 4668 | { |
b345a09f | 4669 | /* Nullify when entering the scope. */ |
883d6776 | 4670 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
b345a09f | 4671 | TREE_TYPE (se.expr), se.expr, |
4672 | fold_convert (TREE_TYPE (se.expr), | |
4673 | null_pointer_node)); | |
883d6776 | 4674 | if (sym->attr.optional) |
4675 | { | |
4676 | tree present = gfc_conv_expr_present (sym); | |
4677 | tmp = build3_loc (input_location, COND_EXPR, | |
4678 | void_type_node, present, tmp, | |
4679 | build_empty_stmt (input_location)); | |
4680 | } | |
b345a09f | 4681 | gfc_add_expr_to_block (&init, tmp); |
883d6776 | 4682 | } |
617125a6 | 4683 | } |
b345a09f | 4684 | |
4685 | if ((sym->attr.dummy || sym->attr.result) | |
4686 | && sym->ts.type == BT_CHARACTER | |
4687 | && sym->ts.deferred | |
4688 | && sym->ts.u.cl->passed_length) | |
4689 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
da2c4122 | 4690 | else |
8c089b5c | 4691 | { |
4692 | gfc_restore_backend_locus (&loc); | |
4693 | tmp = NULL_TREE; | |
4694 | } | |
908e9973 | 4695 | |
4696 | /* Deallocate when leaving the scope. Nullifying is not | |
4697 | needed. */ | |
b345a09f | 4698 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
afb69dbf | 4699 | && !sym->ns->proc_name->attr.is_main_program) |
d0d776fb | 4700 | { |
4701 | if (sym->ts.type == BT_CLASS | |
4702 | && CLASS_DATA (sym)->attr.codimension) | |
4703 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4704 | NULL_TREE, NULL_TREE, | |
4705 | NULL_TREE, true, NULL, | |
3d2aa0e8 | 4706 | GFC_CAF_COARRAY_ANALYZE); |
d0d776fb | 4707 | else |
c23adf93 | 4708 | { |
4709 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
3d2aa0e8 | 4710 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4711 | NULL_TREE, | |
4712 | NULL_TREE, | |
4713 | true, expr, | |
4714 | sym->ts); | |
c23adf93 | 4715 | gfc_free_expr (expr); |
4716 | } | |
d0d776fb | 4717 | } |
b345a09f | 4718 | |
afc44c79 | 4719 | if (sym->ts.type == BT_CLASS) |
4720 | { | |
4721 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4722 | gfc_symbol *vtab; |
afc44c79 | 4723 | tree rhs; |
da2c4122 | 4724 | |
4725 | gfc_save_backend_locus (&loc); | |
4726 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4727 | e = gfc_lval_expr_from_sym (sym); |
4728 | gfc_add_vptr_component (e); | |
4729 | gfc_init_se (&se, NULL); | |
4730 | se.want_pointer = 1; | |
4731 | gfc_conv_expr (&se, e); | |
4732 | gfc_free_expr (e); | |
a90fe829 | 4733 | if (UNLIMITED_POLY (sym)) |
4734 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4735 | else | |
4736 | { | |
4737 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4738 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4739 | gfc_get_symbol_decl (vtab)); | |
4740 | } | |
afc44c79 | 4741 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4742 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4743 | } |
4744 | ||
89ac8ba1 | 4745 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4746 | } |
0a96a7cc | 4747 | } |
617125a6 | 4748 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4749 | { | |
4750 | tree tmp = NULL; | |
4751 | stmtblock_t init; | |
4752 | ||
4753 | /* If we get to here, all that should be left are pointers. */ | |
4754 | gcc_assert (sym->attr.pointer); | |
4755 | ||
4756 | if (sym->attr.dummy) | |
4757 | { | |
4758 | gfc_start_block (&init); | |
b345a09f | 4759 | gfc_save_backend_locus (&loc); |
4760 | gfc_set_backend_locus (&sym->declared_at); | |
4761 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
617125a6 | 4762 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4763 | } | |
4764 | } | |
3e715c81 | 4765 | else if (sym->ts.deferred) |
4766 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4767 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4768 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4769 | else if (sym->ts.type == BT_CHARACTER) |
4770 | { | |
4671339c | 4771 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4772 | gfc_set_backend_locus (&sym->declared_at); |
4773 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4774 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4775 | else |
89ac8ba1 | 4776 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4777 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4778 | } |
c8f1568f | 4779 | else if (sym->attr.assign) |
4780 | { | |
4671339c | 4781 | gfc_save_backend_locus (&loc); |
c8f1568f | 4782 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4783 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4784 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4785 | } |
f0d4969f | 4786 | else if (sym->ts.type == BT_DERIVED |
4787 | && sym->value | |
4788 | && !sym->attr.data | |
4789 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4790 | { |
4791 | gfc_start_block (&tmpblock); | |
4792 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4793 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4794 | NULL_TREE); |
4795 | } | |
9d958d5b | 4796 | else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type) |
22d678e8 | 4797 | gcc_unreachable (); |
4ee9c684 | 4798 | } |
4799 | ||
c5faa799 | 4800 | gfc_init_block (&tmpblock); |
d4163395 | 4801 | |
6777213b | 4802 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4803 | { |
4804 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4805 | { | |
eeebe20b | 4806 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4807 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4808 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4809 | } |
1e853e89 | 4810 | } |
d4163395 | 4811 | |
4812 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4813 | && current_fake_result_decl != NULL) | |
4814 | { | |
eeebe20b | 4815 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4816 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4817 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4818 | } |
4819 | ||
89ac8ba1 | 4820 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4821 | } |
4822 | ||
b345a09f | 4823 | |
b594087e | 4824 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4825 | { |
2ef51f0e | 4826 | typedef const char *compare_type; |
df4d540f | 4827 | |
aa63245e | 4828 | static hashval_t hash (module_htab_entry *s) |
4829 | { | |
4830 | return htab_hash_string (s->name); | |
4831 | } | |
4832 | ||
2ef51f0e | 4833 | static bool |
4834 | equal (module_htab_entry *a, const char *b) | |
4835 | { | |
4836 | return !strcmp (a->name, b); | |
4837 | } | |
4838 | }; | |
4839 | ||
4840 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4841 | |
4842 | /* Hash and equality functions for module_htab's decls. */ | |
4843 | ||
2ef51f0e | 4844 | hashval_t |
4845 | module_decl_hasher::hash (tree t) | |
df4d540f | 4846 | { |
df4d540f | 4847 | const_tree n = DECL_NAME (t); |
4848 | if (n == NULL_TREE) | |
4849 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4850 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4851 | } |
4852 | ||
2ef51f0e | 4853 | bool |
4854 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4855 | { |
df4d540f | 4856 | const_tree n1 = DECL_NAME (t1); |
4857 | if (n1 == NULL_TREE) | |
4858 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4859 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4860 | } |
4861 | ||
4862 | struct module_htab_entry * | |
4863 | gfc_find_module (const char *name) | |
4864 | { | |
df4d540f | 4865 | if (! module_htab) |
2ef51f0e | 4866 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4867 | |
2ef51f0e | 4868 | module_htab_entry **slot |
4869 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4870 | if (*slot == NULL) |
4871 | { | |
25a27413 | 4872 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4873 | |
dc326dc0 | 4874 | entry->name = gfc_get_string ("%s", name); |
2ef51f0e | 4875 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4876 | *slot = entry; | |
df4d540f | 4877 | } |
2ef51f0e | 4878 | return *slot; |
df4d540f | 4879 | } |
4880 | ||
4881 | void | |
4882 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4883 | { | |
df4d540f | 4884 | const char *name; |
4885 | ||
4886 | if (DECL_NAME (decl)) | |
4887 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4888 | else | |
4889 | { | |
4890 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4891 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4892 | } | |
2ef51f0e | 4893 | tree *slot |
4894 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4895 | INSERT); | |
df4d540f | 4896 | if (*slot == NULL) |
2ef51f0e | 4897 | *slot = decl; |
df4d540f | 4898 | } |
4899 | ||
c40a5c1b | 4900 | |
4901 | /* Generate debugging symbols for namelists. This function must come after | |
4902 | generate_local_decl to ensure that the variables in the namelist are | |
4903 | already declared. */ | |
4904 | ||
4905 | static tree | |
4906 | generate_namelist_decl (gfc_symbol * sym) | |
4907 | { | |
4908 | gfc_namelist *nml; | |
4909 | tree decl; | |
4910 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4911 | ||
4912 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4913 | for (nml = sym->namelist; nml; nml = nml->next) | |
4914 | { | |
4915 | if (nml->sym->backend_decl == NULL_TREE) | |
4916 | { | |
4917 | nml->sym->attr.referenced = 1; | |
4918 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4919 | } | |
0a32260c | 4920 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4921 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4922 | } | |
4923 | ||
4924 | decl = make_node (NAMELIST_DECL); | |
4925 | TREE_TYPE (decl) = void_type_node; | |
4926 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4927 | DECL_NAME (decl) = get_identifier (sym->name); | |
4928 | return decl; | |
4929 | } | |
4930 | ||
4931 | ||
4ee9c684 | 4932 | /* Output an initialized decl for a module variable. */ |
4933 | ||
4934 | static void | |
4935 | gfc_create_module_variable (gfc_symbol * sym) | |
4936 | { | |
4937 | tree decl; | |
4ee9c684 | 4938 | |
d77f260f | 4939 | /* Module functions with alternate entries are dealt with later and |
4940 | would get caught by the next condition. */ | |
4941 | if (sym->attr.entry) | |
4942 | return; | |
4943 | ||
c5d33754 | 4944 | /* Make sure we convert the types of the derived types from iso_c_binding |
4945 | into (void *). */ | |
4946 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4947 | && sym->ts.type == BT_DERIVED) | |
4948 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4949 | ||
d7cd448a | 4950 | if (gfc_fl_struct (sym->attr.flavor) |
df4d540f | 4951 | && sym->backend_decl |
4952 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4953 | { | |
4954 | decl = sym->backend_decl; | |
4955 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4956 | |
fe9d2f5a | 4957 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 4958 | { |
4959 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4960 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4961 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4962 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4963 | == sym->ns->proc_name->backend_decl); | |
4964 | } | |
df4d540f | 4965 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4966 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4967 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4968 | } | |
4969 | ||
cf269acc | 4970 | /* Only output variables, procedure pointers and array valued, |
4971 | or derived type, parameters. */ | |
4ee9c684 | 4972 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4973 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4974 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4975 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4976 | return; |
4977 | ||
df4d540f | 4978 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4979 | { | |
4980 | decl = sym->backend_decl; | |
16a40513 | 4981 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4982 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4983 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4984 | gfc_module_add_decl (cur_module, decl); | |
4985 | } | |
4986 | ||
d43a7f7f | 4987 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4988 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 4989 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4990 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4991 | return; |
4992 | ||
2b685f8e | 4993 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4994 | if (sym->backend_decl |
df4d540f | 4995 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4996 | return; | |
2b685f8e | 4997 | |
23d075f4 | 4998 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4999 | gfc_internal_error ("backend decl for module variable %qs already exists", |
5000 | sym->name); | |
4ee9c684 | 5001 | |
92983bfd | 5002 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
5003 | && (sym->attr.access == ACCESS_UNKNOWN | |
5004 | && (sym->ns->default_access == ACCESS_PRIVATE | |
5005 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 5006 | && flag_module_private)))) |
92983bfd | 5007 | sym->attr.access = ACCESS_PRIVATE; |
5008 | ||
5009 | if (warn_unused_variable && !sym->attr.referenced | |
5010 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 5011 | gfc_warning (OPT_Wunused_value, |
5012 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 5013 | sym->name, &sym->declared_at); |
5014 | ||
4ee9c684 | 5015 | /* We always want module variables to be created. */ |
5016 | sym->attr.referenced = 1; | |
5017 | /* Create the decl. */ | |
5018 | decl = gfc_get_symbol_decl (sym); | |
5019 | ||
4ee9c684 | 5020 | /* Create the variable. */ |
5021 | pushdecl (decl); | |
8b7e5587 | 5022 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
5023 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
5024 | && sym->fn_result_spec)); | |
df4d540f | 5025 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
b2c4af5e | 5026 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 5027 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 5028 | |
5029 | /* Also add length of strings. */ | |
5030 | if (sym->ts.type == BT_CHARACTER) | |
5031 | { | |
5032 | tree length; | |
5033 | ||
eeebe20b | 5034 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 5035 | gcc_assert (length || sym->attr.proc_pointer); |
5036 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 5037 | { |
5038 | pushdecl (length); | |
b2c4af5e | 5039 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 5040 | } |
5041 | } | |
a961ca30 | 5042 | |
5043 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
5044 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5045 | has_coarray_vars = true; | |
4ee9c684 | 5046 | } |
5047 | ||
51d9479b | 5048 | /* Emit debug information for USE statements. */ |
df4d540f | 5049 | |
5050 | static void | |
5051 | gfc_trans_use_stmts (gfc_namespace * ns) | |
5052 | { | |
5053 | gfc_use_list *use_stmt; | |
5054 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
5055 | { | |
5056 | struct module_htab_entry *entry | |
5057 | = gfc_find_module (use_stmt->module_name); | |
5058 | gfc_use_rename *rent; | |
5059 | ||
5060 | if (entry->namespace_decl == NULL) | |
5061 | { | |
5062 | entry->namespace_decl | |
e60a6f7b | 5063 | = build_decl (input_location, |
5064 | NAMESPACE_DECL, | |
df4d540f | 5065 | get_identifier (use_stmt->module_name), |
5066 | void_type_node); | |
5067 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
5068 | } | |
51d9479b | 5069 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 5070 | if (!use_stmt->only_flag) |
5071 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
5072 | NULL_TREE, | |
5073 | ns->proc_name->backend_decl, | |
41d01e67 | 5074 | false, false); |
df4d540f | 5075 | for (rent = use_stmt->rename; rent; rent = rent->next) |
5076 | { | |
5077 | tree decl, local_name; | |
df4d540f | 5078 | |
5079 | if (rent->op != INTRINSIC_NONE) | |
5080 | continue; | |
5081 | ||
2ef51f0e | 5082 | hashval_t hash = htab_hash_string (rent->use_name); |
5083 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
5084 | INSERT); | |
df4d540f | 5085 | if (*slot == NULL) |
5086 | { | |
5087 | gfc_symtree *st; | |
5088 | ||
5089 | st = gfc_find_symtree (ns->sym_root, | |
5090 | rent->local_name[0] | |
5091 | ? rent->local_name : rent->use_name); | |
c2958b6b | 5092 | |
5093 | /* The following can happen if a derived type is renamed. */ | |
5094 | if (!st) | |
5095 | { | |
5096 | char *name; | |
5097 | name = xstrdup (rent->local_name[0] | |
5098 | ? rent->local_name : rent->use_name); | |
5099 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
5100 | st = gfc_find_symtree (ns->sym_root, name); | |
5101 | free (name); | |
5102 | gcc_assert (st); | |
5103 | } | |
857c96ba | 5104 | |
5105 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
5106 | local symbol (see PR41062). */ | |
5107 | if (!st->n.sym->attr.use_assoc) | |
5108 | continue; | |
5109 | ||
51d9479b | 5110 | if (st->n.sym->backend_decl |
5111 | && DECL_P (st->n.sym->backend_decl) | |
5112 | && st->n.sym->module | |
5113 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 5114 | { |
51d9479b | 5115 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
fe732a9b | 5116 | || !VAR_P (st->n.sym->backend_decl)); |
df4d540f | 5117 | decl = copy_node (st->n.sym->backend_decl); |
5118 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5119 | DECL_EXTERNAL (decl) = 1; | |
5120 | DECL_IGNORED_P (decl) = 0; | |
5121 | DECL_INITIAL (decl) = NULL_TREE; | |
5122 | } | |
c40a5c1b | 5123 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
5124 | && st->n.sym->attr.use_only | |
5125 | && st->n.sym->module | |
5126 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
5127 | == 0) | |
5128 | { | |
5129 | decl = generate_namelist_decl (st->n.sym); | |
5130 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5131 | DECL_EXTERNAL (decl) = 1; | |
5132 | DECL_IGNORED_P (decl) = 0; | |
5133 | DECL_INITIAL (decl) = NULL_TREE; | |
5134 | } | |
df4d540f | 5135 | else |
5136 | { | |
5137 | *slot = error_mark_node; | |
2ef51f0e | 5138 | entry->decls->clear_slot (slot); |
df4d540f | 5139 | continue; |
5140 | } | |
5141 | *slot = decl; | |
5142 | } | |
5143 | decl = (tree) *slot; | |
5144 | if (rent->local_name[0]) | |
5145 | local_name = get_identifier (rent->local_name); | |
5146 | else | |
5147 | local_name = NULL_TREE; | |
51d9479b | 5148 | gfc_set_backend_locus (&rent->where); |
df4d540f | 5149 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
5150 | ns->proc_name->backend_decl, | |
41d01e67 | 5151 | !use_stmt->only_flag, |
5152 | false); | |
df4d540f | 5153 | } |
5154 | } | |
4ee9c684 | 5155 | } |
5156 | ||
51d9479b | 5157 | |
2eb674c9 | 5158 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
5159 | will handle. */ | |
5160 | ||
5161 | static bool | |
5162 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
5163 | bool pointer) | |
5164 | { | |
5165 | gfc_constructor *c; | |
5166 | gfc_component *cm; | |
5167 | ||
5168 | if (pointer) | |
5169 | return true; | |
5170 | else if (array) | |
5171 | { | |
5172 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
5173 | return true; | |
5174 | else if (expr->expr_type == EXPR_STRUCTURE) | |
5175 | return check_constant_initializer (expr, ts, false, false); | |
5176 | else if (expr->expr_type != EXPR_ARRAY) | |
5177 | return false; | |
126387b5 | 5178 | for (c = gfc_constructor_first (expr->value.constructor); |
5179 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 5180 | { |
5181 | if (c->iterator) | |
5182 | return false; | |
5183 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
5184 | { | |
5185 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
5186 | return false; | |
5187 | } | |
5188 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
5189 | return false; | |
5190 | } | |
5191 | return true; | |
5192 | } | |
5193 | else switch (ts->type) | |
5194 | { | |
d7cd448a | 5195 | case_bt_struct: |
2eb674c9 | 5196 | if (expr->expr_type != EXPR_STRUCTURE) |
5197 | return false; | |
eeebe20b | 5198 | cm = expr->ts.u.derived->components; |
126387b5 | 5199 | for (c = gfc_constructor_first (expr->value.constructor); |
5200 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 5201 | { |
5202 | if (!c->expr || cm->attr.allocatable) | |
5203 | continue; | |
5204 | if (!check_constant_initializer (c->expr, &cm->ts, | |
5205 | cm->attr.dimension, | |
5206 | cm->attr.pointer)) | |
5207 | return false; | |
5208 | } | |
5209 | return true; | |
5210 | default: | |
5211 | return expr->expr_type == EXPR_CONSTANT; | |
5212 | } | |
5213 | } | |
5214 | ||
5215 | /* Emit debug info for parameters and unreferenced variables with | |
5216 | initializers. */ | |
5217 | ||
5218 | static void | |
5219 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
5220 | { | |
5221 | tree decl; | |
5222 | ||
5223 | if (sym->attr.flavor != FL_PARAMETER | |
5224 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
5225 | return; | |
5226 | ||
5227 | if (sym->backend_decl != NULL | |
5228 | || sym->value == NULL | |
5229 | || sym->attr.use_assoc | |
5230 | || sym->attr.dummy | |
5231 | || sym->attr.result | |
5232 | || sym->attr.function | |
5233 | || sym->attr.intrinsic | |
5234 | || sym->attr.pointer | |
5235 | || sym->attr.allocatable | |
5236 | || sym->attr.cray_pointee | |
5237 | || sym->attr.threadprivate | |
5238 | || sym->attr.is_bind_c | |
5239 | || sym->attr.subref_array_pointer | |
5240 | || sym->attr.assign) | |
5241 | return; | |
5242 | ||
5243 | if (sym->ts.type == BT_CHARACTER) | |
5244 | { | |
eeebe20b | 5245 | gfc_conv_const_charlen (sym->ts.u.cl); |
5246 | if (sym->ts.u.cl->backend_decl == NULL | |
5247 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 5248 | return; |
5249 | } | |
eeebe20b | 5250 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 5251 | return; |
5252 | ||
5253 | if (sym->as) | |
5254 | { | |
5255 | int n; | |
5256 | ||
5257 | if (sym->as->type != AS_EXPLICIT) | |
5258 | return; | |
5259 | for (n = 0; n < sym->as->rank; n++) | |
5260 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5261 | || sym->as->upper[n] == NULL | |
5262 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5263 | return; | |
5264 | } | |
5265 | ||
5266 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5267 | sym->attr.dimension, false)) | |
5268 | return; | |
5269 | ||
4fe73152 | 5270 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 5271 | return; |
5272 | ||
2eb674c9 | 5273 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 5274 | decl = build_decl (input_location, |
5275 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 5276 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5277 | if (sym->attr.flavor == FL_PARAMETER) | |
5278 | TREE_READONLY (decl) = 1; | |
5279 | gfc_set_decl_location (decl, &sym->declared_at); | |
5280 | if (sym->attr.dimension) | |
5281 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5282 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5283 | TREE_STATIC (decl) = 1; | |
5284 | TREE_USED (decl) = 1; | |
5285 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5286 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 5287 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5288 | TREE_TYPE (decl), | |
5289 | sym->attr.dimension, | |
5290 | false, false); | |
3a1c9df2 | 5291 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 5292 | } |
5293 | ||
a961ca30 | 5294 | |
5295 | static void | |
5296 | generate_coarray_sym_init (gfc_symbol *sym) | |
5297 | { | |
eee0cf09 | 5298 | tree tmp, size, decl, token, desc; |
bd47f0bc | 5299 | bool is_lock_type, is_event_type; |
498b946e | 5300 | int reg_type; |
eee0cf09 | 5301 | gfc_se se; |
5302 | symbol_attribute attr; | |
a961ca30 | 5303 | |
5304 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 5305 | || sym->attr.use_assoc || !sym->attr.referenced |
5306 | || sym->attr.select_type_temporary) | |
a961ca30 | 5307 | return; |
5308 | ||
5309 | decl = sym->backend_decl; | |
5310 | TREE_USED(decl) = 1; | |
5311 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5312 | ||
498b946e | 5313 | is_lock_type = sym->ts.type == BT_DERIVED |
5314 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5315 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5316 | ||
bd47f0bc | 5317 | is_event_type = sym->ts.type == BT_DERIVED |
5318 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5319 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5320 | ||
a961ca30 | 5321 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5322 | to make sure the variable is not optimized away. */ | |
5323 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5324 | ||
498b946e | 5325 | /* For lock types, we pass the array size as only the library knows the |
5326 | size of the variable. */ | |
bd47f0bc | 5327 | if (is_lock_type || is_event_type) |
498b946e | 5328 | size = gfc_index_one_node; |
5329 | else | |
5330 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 5331 | |
a90fe829 | 5332 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 5333 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5334 | fold_convert (size_type_node, size), | |
5335 | build_int_cst (size_type_node, 1)); | |
5336 | ||
a961ca30 | 5337 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5338 | { | |
5339 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5340 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 5341 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 5342 | } |
5343 | ||
5344 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5345 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5346 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 5347 | if (is_lock_type) |
5348 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 5349 | else if (is_event_type) |
5350 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 5351 | else |
5352 | reg_type = GFC_CAF_COARRAY_STATIC; | |
eee0cf09 | 5353 | |
f991680c | 5354 | /* Compile the symbol attribute. */ |
5355 | if (sym->ts.type == BT_CLASS) | |
5356 | { | |
5357 | attr = CLASS_DATA (sym)->attr; | |
5358 | /* The pointer attribute is always set on classes, overwrite it with the | |
5359 | class_pointer attribute, which denotes the pointer for classes. */ | |
5360 | attr.pointer = attr.class_pointer; | |
5361 | } | |
5362 | else | |
5363 | attr = sym->attr; | |
eee0cf09 | 5364 | gfc_init_se (&se, NULL); |
5365 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5366 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5367 | ||
5368 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
498b946e | 5369 | build_int_cst (integer_type_node, reg_type), |
eee0cf09 | 5370 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5371 | null_pointer_node, /* stat. */ | |
3d2aa0e8 | 5372 | null_pointer_node, /* errgmsg. */ |
5e04a38a | 5373 | build_zero_cst (size_type_node)); /* errmsg_len. */ |
eee0cf09 | 5374 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5375 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5376 | gfc_conv_descriptor_data_get (desc))); | |
a961ca30 | 5377 | |
a961ca30 | 5378 | /* Handle "static" initializer. */ |
5379 | if (sym->value) | |
5380 | { | |
5381 | sym->attr.pointer = 1; | |
5382 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5383 | true, false); | |
5384 | sym->attr.pointer = 0; | |
5385 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5386 | } | |
942ef29d | 5387 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp) |
5388 | { | |
5389 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as | |
5390 | ? sym->as->rank : 0, | |
5391 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY); | |
5392 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5393 | } | |
a961ca30 | 5394 | } |
5395 | ||
5396 | ||
5397 | /* Generate constructor function to initialize static, nonallocatable | |
5398 | coarrays. */ | |
5399 | ||
5400 | static void | |
5401 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5402 | { | |
5403 | tree fndecl, tmp, decl, save_fn_decl; | |
5404 | ||
5405 | save_fn_decl = current_function_decl; | |
5406 | push_function_context (); | |
5407 | ||
5408 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5409 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5410 | create_tmp_var_name ("_caf_init"), tmp); | |
5411 | ||
5412 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5413 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5414 | ||
5415 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5416 | DECL_ARTIFICIAL (decl) = 1; | |
5417 | DECL_IGNORED_P (decl) = 1; | |
5418 | DECL_CONTEXT (decl) = fndecl; | |
5419 | DECL_RESULT (fndecl) = decl; | |
5420 | ||
5421 | pushdecl (fndecl); | |
5422 | current_function_decl = fndecl; | |
5423 | announce_function (fndecl); | |
5424 | ||
5425 | rest_of_decl_compilation (fndecl, 0, 0); | |
5426 | make_decl_rtl (fndecl); | |
00cf115c | 5427 | allocate_struct_function (fndecl, false); |
a961ca30 | 5428 | |
cde2be84 | 5429 | pushlevel (); |
a961ca30 | 5430 | gfc_init_block (&caf_init_block); |
5431 | ||
5432 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5433 | ||
5434 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5435 | decl = getdecls (); | |
5436 | ||
cde2be84 | 5437 | poplevel (1, 1); |
a961ca30 | 5438 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5439 | ||
5440 | DECL_SAVED_TREE (fndecl) | |
5441 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5442 | DECL_INITIAL (fndecl)); | |
5443 | dump_function (TDI_original, fndecl); | |
5444 | ||
5445 | cfun->function_end_locus = input_location; | |
5446 | set_cfun (NULL); | |
5447 | ||
5448 | if (decl_function_context (fndecl)) | |
415d1b9a | 5449 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5450 | else |
35ee1c66 | 5451 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5452 | |
5453 | pop_function_context (); | |
5454 | current_function_decl = save_fn_decl; | |
5455 | } | |
5456 | ||
5457 | ||
c40a5c1b | 5458 | static void |
5459 | create_module_nml_decl (gfc_symbol *sym) | |
5460 | { | |
5461 | if (sym->attr.flavor == FL_NAMELIST) | |
5462 | { | |
5463 | tree decl = generate_namelist_decl (sym); | |
5464 | pushdecl (decl); | |
5465 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5466 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5467 | rest_of_decl_compilation (decl, 1, 0); | |
5468 | gfc_module_add_decl (cur_module, decl); | |
5469 | } | |
5470 | } | |
5471 | ||
5472 | ||
51d9479b | 5473 | /* Generate all the required code for module variables. */ |
5474 | ||
5475 | void | |
5476 | gfc_generate_module_vars (gfc_namespace * ns) | |
5477 | { | |
5478 | module_namespace = ns; | |
5479 | cur_module = gfc_find_module (ns->proc_name->name); | |
5480 | ||
5481 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5482 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5483 | ||
5484 | /* Generate COMMON blocks. */ | |
5485 | gfc_trans_common (ns); | |
5486 | ||
a961ca30 | 5487 | has_coarray_vars = false; |
5488 | ||
51d9479b | 5489 | /* Create decls for all the module variables. */ |
5490 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5491 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5492 | |
4fe73152 | 5493 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5494 | generate_coarray_init (ns); |
5495 | ||
51d9479b | 5496 | cur_module = NULL; |
5497 | ||
5498 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5499 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5500 | } |
5501 | ||
5502 | ||
4ee9c684 | 5503 | static void |
5504 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5505 | { | |
5506 | gfc_namespace *ns; | |
5507 | ||
5508 | /* We create all the prototypes before generating any code. */ | |
5509 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5510 | { | |
5511 | /* Skip namespaces from used modules. */ | |
5512 | if (ns->parent != parent) | |
5513 | continue; | |
5514 | ||
d896f9b3 | 5515 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5516 | } |
5517 | ||
5518 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5519 | { | |
5520 | /* Skip namespaces from used modules. */ | |
5521 | if (ns->parent != parent) | |
5522 | continue; | |
5523 | ||
5524 | gfc_generate_function_code (ns); | |
5525 | } | |
5526 | } | |
5527 | ||
5528 | ||
d95efb59 | 5529 | /* Drill down through expressions for the array specification bounds and |
5530 | character length calling generate_local_decl for all those variables | |
5531 | that have not already been declared. */ | |
5532 | ||
5533 | static void | |
5534 | generate_local_decl (gfc_symbol *); | |
5535 | ||
1acb400a | 5536 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5537 | |
1acb400a | 5538 | static bool |
5539 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5540 | int *f ATTRIBUTE_UNUSED) | |
5541 | { | |
5542 | if (e->expr_type != EXPR_VARIABLE | |
5543 | || sym == e->symtree->n.sym | |
d95efb59 | 5544 | || e->symtree->n.sym->mark |
5545 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5546 | return false; |
d95efb59 | 5547 | |
1acb400a | 5548 | generate_local_decl (e->symtree->n.sym); |
5549 | return false; | |
5550 | } | |
d95efb59 | 5551 | |
1acb400a | 5552 | static void |
5553 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5554 | { | |
5555 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5556 | } |
5557 | ||
5558 | ||
f6d0e37a | 5559 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5560 | |
5561 | static void | |
5562 | generate_dependency_declarations (gfc_symbol *sym) | |
5563 | { | |
5564 | int i; | |
5565 | ||
5566 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5567 | && sym->ts.u.cl |
5568 | && sym->ts.u.cl->length | |
5569 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5570 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5571 | |
5572 | if (sym->as && sym->as->rank) | |
5573 | { | |
5574 | for (i = 0; i < sym->as->rank; i++) | |
5575 | { | |
5576 | generate_expr_decls (sym, sym->as->lower[i]); | |
5577 | generate_expr_decls (sym, sym->as->upper[i]); | |
5578 | } | |
5579 | } | |
5580 | } | |
5581 | ||
5582 | ||
4ee9c684 | 5583 | /* Generate decls for all local variables. We do this to ensure correct |
5584 | handling of expressions which only appear in the specification of | |
5585 | other functions. */ | |
5586 | ||
5587 | static void | |
5588 | generate_local_decl (gfc_symbol * sym) | |
5589 | { | |
5590 | if (sym->attr.flavor == FL_VARIABLE) | |
5591 | { | |
a961ca30 | 5592 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5593 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5594 | has_coarray_vars = true; | |
5595 | ||
d95efb59 | 5596 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5597 | generate_dependency_declarations (sym); |
d95efb59 | 5598 | |
4ee9c684 | 5599 | if (sym->attr.referenced) |
8714fc76 | 5600 | gfc_get_symbol_decl (sym); |
4acad347 | 5601 | |
5602 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5603 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5604 | { |
4acad347 | 5605 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5606 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5607 | { |
5608 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5609 | gfc_warning (OPT_Wunused_dummy_argument, |
5610 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5611 | "INTENT(OUT) but was not set", sym->name, |
5612 | &sym->declared_at); | |
48cb4748 | 5613 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5614 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5615 | gfc_warning (OPT_Wunused_dummy_argument, |
5616 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5617 | "declared INTENT(OUT) but was not set and " |
5618 | "does not have a default initializer", | |
5619 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5620 | if (sym->backend_decl != NULL_TREE) |
5621 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5622 | } |
8290d53f | 5623 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5624 | { |
4166acc7 | 5625 | gfc_warning (OPT_Wunused_dummy_argument, |
5626 | "Unused dummy argument %qs at %L", sym->name, | |
5627 | &sym->declared_at); | |
90a4a5a6 | 5628 | if (sym->backend_decl != NULL_TREE) |
5629 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5630 | } | |
7c0ca46e | 5631 | } |
4acad347 | 5632 | |
f888a3fb | 5633 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5634 | block or a namelist. */ |
36609028 | 5635 | else if (warn_unused_variable |
1dbfac29 | 5636 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5637 | { |
1dbfac29 | 5638 | if (sym->attr.use_only) |
5639 | { | |
4166acc7 | 5640 | gfc_warning (OPT_Wunused_variable, |
5641 | "Unused module variable %qs which has been " | |
1dbfac29 | 5642 | "explicitly imported at %L", sym->name, |
5643 | &sym->declared_at); | |
5644 | if (sym->backend_decl != NULL_TREE) | |
5645 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5646 | } | |
5647 | else if (!sym->attr.use_assoc) | |
5648 | { | |
99af6e70 | 5649 | /* Corner case: the symbol may be an entry point. At this point, |
5650 | it may appear to be an unused variable. Suppress warning. */ | |
5651 | bool enter = false; | |
5652 | gfc_entry_list *el; | |
5653 | ||
5654 | for (el = sym->ns->entries; el; el=el->next) | |
5655 | if (strcmp(sym->name, el->sym->name) == 0) | |
5656 | enter = true; | |
5657 | ||
5658 | if (!enter) | |
5659 | gfc_warning (OPT_Wunused_variable, | |
5660 | "Unused variable %qs declared at %L", | |
5661 | sym->name, &sym->declared_at); | |
1dbfac29 | 5662 | if (sym->backend_decl != NULL_TREE) |
5663 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5664 | } | |
90a4a5a6 | 5665 | } |
8714fc76 | 5666 | |
d4163395 | 5667 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5668 | references the length variable, so force gfc_get_symbol_decl | |
5669 | even when not referenced. If optimize > 0, it will be optimized | |
5670 | away anyway. But do this only after emitting -Wunused-parameter | |
5671 | warning if requested. */ | |
8714fc76 | 5672 | if (sym->attr.dummy && !sym->attr.referenced |
5673 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5674 | && sym->ts.u.cl->backend_decl != NULL |
fe732a9b | 5675 | && VAR_P (sym->ts.u.cl->backend_decl)) |
d4163395 | 5676 | { |
5677 | sym->attr.referenced = 1; | |
5678 | gfc_get_symbol_decl (sym); | |
5679 | } | |
76776e6d | 5680 | |
d0163401 | 5681 | /* INTENT(out) dummy arguments and result variables with allocatable |
5682 | components are reset by default and need to be set referenced to | |
5683 | generate the code for nullification and automatic lengths. */ | |
5684 | if (!sym->attr.referenced | |
8714fc76 | 5685 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5686 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5687 | && !sym->attr.pointer |
d0163401 | 5688 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5689 | || | |
5690 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5691 | { |
5692 | sym->attr.referenced = 1; | |
5693 | gfc_get_symbol_decl (sym); | |
5694 | } | |
5695 | ||
e72f979a | 5696 | /* Check for dependencies in the array specification and string |
5697 | length, adding the necessary declarations to the function. We | |
5698 | mark the symbol now, as well as in traverse_ns, to prevent | |
5699 | getting stuck in a circular dependency. */ | |
5700 | sym->mark = 1; | |
4ee9c684 | 5701 | } |
5dd246c1 | 5702 | else if (sym->attr.flavor == FL_PARAMETER) |
5703 | { | |
6ecfe89d | 5704 | if (warn_unused_parameter |
f326eb81 | 5705 | && !sym->attr.referenced) |
5706 | { | |
5707 | if (!sym->attr.use_assoc) | |
4166acc7 | 5708 | gfc_warning (OPT_Wunused_parameter, |
5709 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5710 | &sym->declared_at); |
5711 | else if (sym->attr.use_only) | |
4166acc7 | 5712 | gfc_warning (OPT_Wunused_parameter, |
5713 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5714 | "imported at %L", sym->name, &sym->declared_at); |
5715 | } | |
758c9897 | 5716 | |
5717 | if (sym->ns | |
5718 | && sym->ns->parent | |
5719 | && sym->ns->parent->code | |
5720 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5721 | { | |
5722 | if (sym->attr.referenced) | |
5723 | gfc_get_symbol_decl (sym); | |
5724 | sym->mark = 1; | |
5725 | } | |
5dd246c1 | 5726 | } |
fa7b6574 | 5727 | else if (sym->attr.flavor == FL_PROCEDURE) |
5728 | { | |
5729 | /* TODO: move to the appropriate place in resolve.c. */ | |
8b72061f | 5730 | if (warn_return_type > 0 |
fa7b6574 | 5731 | && sym->attr.function |
5732 | && sym->result | |
5733 | && sym != sym->result | |
5734 | && !sym->result->attr.referenced | |
5735 | && !sym->attr.use_assoc | |
5736 | && sym->attr.if_source != IFSRC_IFBODY) | |
5737 | { | |
4166acc7 | 5738 | gfc_warning (OPT_Wreturn_type, |
5739 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5740 | "%L not set", sym->result->name, sym->name, |
5741 | &sym->result->declared_at); | |
5742 | ||
5743 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5744 | sym->result->mark = 1; |
fa7b6574 | 5745 | } |
5746 | } | |
c5d33754 | 5747 | |
19ba2ad8 | 5748 | if (sym->attr.dummy == 1) |
5749 | { | |
5750 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5751 | procedures if they are passed by value. The tree type for them will | |
5752 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5753 | what C would do with characters passed by-value. The value attribute | |
5754 | implies the dummy is a scalar. */ | |
5755 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5756 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5757 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5758 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5759 | |
5760 | /* Unused procedure passed as dummy argument. */ | |
5761 | if (sym->attr.flavor == FL_PROCEDURE) | |
5762 | { | |
5763 | if (!sym->attr.referenced) | |
5764 | { | |
8290d53f | 5765 | if (warn_unused_dummy_argument) |
4166acc7 | 5766 | gfc_warning (OPT_Wunused_dummy_argument, |
5767 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5768 | &sym->declared_at); |
fc6338c7 | 5769 | } |
5770 | ||
5771 | /* Silence bogus "unused parameter" warnings from the | |
5772 | middle end. */ | |
5773 | if (sym->backend_decl != NULL_TREE) | |
5774 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5775 | } | |
19ba2ad8 | 5776 | } |
5777 | ||
c5d33754 | 5778 | /* Make sure we convert the types of the derived types from iso_c_binding |
5779 | into (void *). */ | |
5780 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5781 | && sym->ts.type == BT_DERIVED) | |
5782 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5783 | } |
5784 | ||
c40a5c1b | 5785 | |
5786 | static void | |
5787 | generate_local_nml_decl (gfc_symbol * sym) | |
5788 | { | |
5789 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5790 | { | |
5791 | tree decl = generate_namelist_decl (sym); | |
5792 | pushdecl (decl); | |
5793 | } | |
5794 | } | |
5795 | ||
5796 | ||
4ee9c684 | 5797 | static void |
5798 | generate_local_vars (gfc_namespace * ns) | |
5799 | { | |
5800 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5801 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5802 | } |
5803 | ||
5804 | ||
1b716045 | 5805 | /* Generate a switch statement to jump to the correct entry point. Also |
5806 | creates the label decls for the entry points. */ | |
4ee9c684 | 5807 | |
1b716045 | 5808 | static tree |
5809 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5810 | { |
1b716045 | 5811 | stmtblock_t block; |
5812 | tree label; | |
5813 | tree tmp; | |
5814 | tree val; | |
4ee9c684 | 5815 | |
1b716045 | 5816 | gfc_init_block (&block); |
5817 | for (; el; el = el->next) | |
5818 | { | |
5819 | /* Add the case label. */ | |
b797d6d3 | 5820 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5821 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5822 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5823 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5824 | |
1b716045 | 5825 | /* And jump to the actual entry point. */ |
5826 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5827 | tmp = build1_v (GOTO_EXPR, label); |
5828 | gfc_add_expr_to_block (&block, tmp); | |
5829 | ||
5830 | /* Save the label decl. */ | |
5831 | el->label = label; | |
5832 | } | |
5833 | tmp = gfc_finish_block (&block); | |
5834 | /* The first argument selects the entry point. */ | |
5835 | val = DECL_ARGUMENTS (current_function_decl); | |
bd37ce3e | 5836 | tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp); |
1b716045 | 5837 | return tmp; |
4ee9c684 | 5838 | } |
5839 | ||
6374121b | 5840 | |
a4abf8a0 | 5841 | /* Add code to string lengths of actual arguments passed to a function against |
5842 | the expected lengths of the dummy arguments. */ | |
5843 | ||
5844 | static void | |
5845 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5846 | { | |
5847 | gfc_formal_arglist *formal; | |
5848 | ||
6777213b | 5849 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5850 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5851 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5852 | { |
5853 | enum tree_code comparison; | |
5854 | tree cond; | |
5855 | tree argname; | |
5856 | gfc_symbol *fsym; | |
5857 | gfc_charlen *cl; | |
5858 | const char *message; | |
5859 | ||
5860 | fsym = formal->sym; | |
eeebe20b | 5861 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5862 | |
5863 | gcc_assert (cl); | |
5864 | gcc_assert (cl->passed_length != NULL_TREE); | |
5865 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5866 | ||
5867 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5868 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5869 | that the actual string length is *at least* the expected one. |
5870 | Sequence association allows for a mismatch of the string length | |
5871 | if the actual argument is (part of) an array, but only if the | |
5872 | dummy argument is an array. (See "Sequence association" in | |
5873 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5874 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5875 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5876 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5877 | { |
5878 | comparison = NE_EXPR; | |
5879 | message = _("Actual string length does not match the declared one" | |
5880 | " for dummy argument '%s' (%ld/%ld)"); | |
5881 | } | |
be4be771 | 5882 | else if (fsym->as && fsym->as->rank != 0) |
5883 | continue; | |
a4abf8a0 | 5884 | else |
5885 | { | |
5886 | comparison = LT_EXPR; | |
5887 | message = _("Actual string length is shorter than the declared one" | |
5888 | " for dummy argument '%s' (%ld/%ld)"); | |
5889 | } | |
5890 | ||
5891 | /* Build the condition. For optional arguments, an actual length | |
5892 | of 0 is also acceptable if the associated string is NULL, which | |
5893 | means the argument was not passed. */ | |
4c796f54 | 5894 | cond = fold_build2_loc (input_location, comparison, logical_type_node, |
fd779e1d | 5895 | cl->passed_length, cl->backend_decl); |
a4abf8a0 | 5896 | if (fsym->attr.optional) |
5897 | { | |
5898 | tree not_absent; | |
5899 | tree not_0length; | |
5900 | tree absent_failed; | |
5901 | ||
fd779e1d | 5902 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4c796f54 | 5903 | logical_type_node, |
fd779e1d | 5904 | cl->passed_length, |
9f4d9f83 | 5905 | build_zero_cst |
5906 | (TREE_TYPE (cl->passed_length))); | |
5fa0fdc2 | 5907 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5908 | fsym->attr.referenced = 1; | |
5909 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5910 | |
fd779e1d | 5911 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4c796f54 | 5912 | logical_type_node, not_0length, |
fd779e1d | 5913 | not_absent); |
a4abf8a0 | 5914 | |
fd779e1d | 5915 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4c796f54 | 5916 | logical_type_node, cond, absent_failed); |
a4abf8a0 | 5917 | } |
5918 | ||
5919 | /* Build the runtime check. */ | |
5920 | argname = gfc_build_cstring_const (fsym->name); | |
5921 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5922 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5923 | message, argname, | |
5924 | fold_convert (long_integer_type_node, | |
5925 | cl->passed_length), | |
5926 | fold_convert (long_integer_type_node, | |
5927 | cl->backend_decl)); | |
5928 | } | |
5929 | } | |
5930 | ||
5931 | ||
7257a5d2 | 5932 | static void |
5933 | create_main_function (tree fndecl) | |
5934 | { | |
43702da6 | 5935 | tree old_context; |
7257a5d2 | 5936 | tree ftn_main; |
5937 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5938 | stmtblock_t body; | |
5939 | ||
43702da6 | 5940 | old_context = current_function_decl; |
5941 | ||
5942 | if (old_context) | |
5943 | { | |
5944 | push_function_context (); | |
5945 | saved_parent_function_decls = saved_function_decls; | |
5946 | saved_function_decls = NULL_TREE; | |
5947 | } | |
5948 | ||
7257a5d2 | 5949 | /* main() function must be declared with global scope. */ |
5950 | gcc_assert (current_function_decl == NULL_TREE); | |
5951 | ||
5952 | /* Declare the function. */ | |
5953 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5954 | build_pointer_type (pchar_type_node), | |
5955 | NULL_TREE); | |
0509d0ee | 5956 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5957 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5958 | main_identifier_node, tmp); | |
7257a5d2 | 5959 | DECL_EXTERNAL (ftn_main) = 0; |
5960 | TREE_PUBLIC (ftn_main) = 1; | |
5961 | TREE_STATIC (ftn_main) = 1; | |
5962 | DECL_ATTRIBUTES (ftn_main) | |
5963 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5964 | ||
5965 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5966 | result_decl = build_decl (input_location, |
5967 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5968 | DECL_ARTIFICIAL (result_decl) = 1; |
5969 | DECL_IGNORED_P (result_decl) = 1; | |
5970 | DECL_CONTEXT (result_decl) = ftn_main; | |
5971 | DECL_RESULT (ftn_main) = result_decl; | |
5972 | ||
5973 | pushdecl (ftn_main); | |
5974 | ||
5975 | /* Get the arguments. */ | |
5976 | ||
5977 | arglist = NULL_TREE; | |
5978 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5979 | ||
5980 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5981 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5982 | DECL_CONTEXT (argc) = ftn_main; |
5983 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5984 | TREE_READONLY (argc) = 1; | |
5985 | gfc_finish_decl (argc); | |
5986 | arglist = chainon (arglist, argc); | |
5987 | ||
5988 | typelist = TREE_CHAIN (typelist); | |
5989 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5990 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5991 | DECL_CONTEXT (argv) = ftn_main; |
5992 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5993 | TREE_READONLY (argv) = 1; | |
5994 | DECL_BY_REFERENCE (argv) = 1; | |
5995 | gfc_finish_decl (argv); | |
5996 | arglist = chainon (arglist, argv); | |
5997 | ||
5998 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5999 | current_function_decl = ftn_main; | |
6000 | announce_function (ftn_main); | |
6001 | ||
6002 | rest_of_decl_compilation (ftn_main, 1, 0); | |
6003 | make_decl_rtl (ftn_main); | |
00cf115c | 6004 | allocate_struct_function (ftn_main, false); |
cde2be84 | 6005 | pushlevel (); |
7257a5d2 | 6006 | |
6007 | gfc_init_block (&body); | |
6008 | ||
293d72e0 | 6009 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 6010 | |
d44f2f7c | 6011 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 6012 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 6013 | { |
6014 | tree pint_type, pppchar_type; | |
6015 | pint_type = build_pointer_type (integer_type_node); | |
6016 | pppchar_type | |
6017 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
6018 | ||
d44f2f7c | 6019 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 6020 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 6021 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 6022 | gfc_add_expr_to_block (&body, tmp); |
6023 | } | |
6024 | ||
7257a5d2 | 6025 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 6026 | TREE_USED (argc) = 1; |
6027 | TREE_USED (argv) = 1; | |
389dd41b | 6028 | tmp = build_call_expr_loc (input_location, |
6029 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 6030 | gfc_add_expr_to_block (&body, tmp); |
6031 | ||
6032 | /* Add a call to set_options to set up the runtime library Fortran | |
6033 | language standard parameters. */ | |
6034 | { | |
6035 | tree array_type, array, var; | |
f1f41a6c | 6036 | vec<constructor_elt, va_gc> *v = NULL; |
f7619ded | 6037 | static const int noptions = 7; |
7257a5d2 | 6038 | |
f7619ded | 6039 | /* Passing a new option to the library requires three modifications: |
6040 | + add it to the tree_cons list below | |
6041 | + change the noptions variable above | |
7257a5d2 | 6042 | + modify the library (runtime/compile_options.c)! */ |
6043 | ||
06f13dc1 | 6044 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6045 | build_int_cst (integer_type_node, | |
6046 | gfc_option.warn_std)); | |
6047 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6048 | build_int_cst (integer_type_node, | |
6049 | gfc_option.allow_std)); | |
6050 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6051 | build_int_cst (integer_type_node, pedantic)); | |
06f13dc1 | 6052 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 6053 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 6054 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 6055 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 6056 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6057 | build_int_cst (integer_type_node, | |
6058 | (gfc_option.rtcheck | |
6059 | & GFC_RTCHECK_BOUNDS))); | |
6060 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6061 | build_int_cst (integer_type_node, | |
553e7cef | 6062 | gfc_option.fpe_summary)); |
7257a5d2 | 6063 | |
f7619ded | 6064 | array_type = build_array_type_nelts (integer_type_node, noptions); |
06f13dc1 | 6065 | array = build_constructor (array_type, v); |
7257a5d2 | 6066 | TREE_CONSTANT (array) = 1; |
6067 | TREE_STATIC (array) = 1; | |
6068 | ||
6069 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 6070 | var = build_decl (input_location, VAR_DECL, |
f7619ded | 6071 | create_tmp_var_name ("options"), array_type); |
bf77f8ee | 6072 | DECL_ARTIFICIAL (var) = 1; |
6073 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 6074 | TREE_CONSTANT (var) = 1; |
6075 | TREE_STATIC (var) = 1; | |
6076 | TREE_READONLY (var) = 1; | |
6077 | DECL_INITIAL (var) = array; | |
bf77f8ee | 6078 | pushdecl (var); |
7257a5d2 | 6079 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
6080 | ||
389dd41b | 6081 | tmp = build_call_expr_loc (input_location, |
6082 | gfor_fndecl_set_options, 2, | |
f7619ded | 6083 | build_int_cst (integer_type_node, noptions), var); |
7257a5d2 | 6084 | gfc_add_expr_to_block (&body, tmp); |
6085 | } | |
6086 | ||
6087 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
6088 | the library will raise a FPE when needed. */ | |
6089 | if (gfc_option.fpe != 0) | |
6090 | { | |
389dd41b | 6091 | tmp = build_call_expr_loc (input_location, |
6092 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 6093 | build_int_cst (integer_type_node, |
6094 | gfc_option.fpe)); | |
6095 | gfc_add_expr_to_block (&body, tmp); | |
6096 | } | |
6097 | ||
6098 | /* If this is the main program and an -fconvert option was provided, | |
6099 | add a call to set_convert. */ | |
6100 | ||
4fe73152 | 6101 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 6102 | { |
389dd41b | 6103 | tmp = build_call_expr_loc (input_location, |
6104 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 6105 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 6106 | gfc_add_expr_to_block (&body, tmp); |
6107 | } | |
6108 | ||
6109 | /* If this is the main program and an -frecord-marker option was provided, | |
6110 | add a call to set_record_marker. */ | |
6111 | ||
eb106faf | 6112 | if (flag_record_marker != 0) |
7257a5d2 | 6113 | { |
389dd41b | 6114 | tmp = build_call_expr_loc (input_location, |
6115 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 6116 | build_int_cst (integer_type_node, |
eb106faf | 6117 | flag_record_marker)); |
7257a5d2 | 6118 | gfc_add_expr_to_block (&body, tmp); |
6119 | } | |
6120 | ||
eb106faf | 6121 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 6122 | { |
389dd41b | 6123 | tmp = build_call_expr_loc (input_location, |
6124 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 6125 | build_int_cst (integer_type_node, |
eb106faf | 6126 | flag_max_subrecord_length)); |
7257a5d2 | 6127 | gfc_add_expr_to_block (&body, tmp); |
6128 | } | |
6129 | ||
6130 | /* Call MAIN__(). */ | |
389dd41b | 6131 | tmp = build_call_expr_loc (input_location, |
6132 | fndecl, 0); | |
7257a5d2 | 6133 | gfc_add_expr_to_block (&body, tmp); |
6134 | ||
43702da6 | 6135 | /* Mark MAIN__ as used. */ |
6136 | TREE_USED (fndecl) = 1; | |
6137 | ||
70b5944a | 6138 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 6139 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 6140 | { |
70b5944a | 6141 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
6142 | gfc_add_expr_to_block (&body, tmp); | |
6143 | } | |
6144 | ||
7257a5d2 | 6145 | /* "return 0". */ |
fd779e1d | 6146 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
6147 | DECL_RESULT (ftn_main), | |
6148 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 6149 | tmp = build1_v (RETURN_EXPR, tmp); |
6150 | gfc_add_expr_to_block (&body, tmp); | |
6151 | ||
6152 | ||
6153 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
6154 | decl = getdecls (); | |
6155 | ||
6156 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6157 | poplevel (1, 1); |
7257a5d2 | 6158 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
6159 | ||
6160 | DECL_SAVED_TREE (ftn_main) | |
6161 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
6162 | DECL_INITIAL (ftn_main)); | |
6163 | ||
6164 | /* Output the GENERIC tree. */ | |
6165 | dump_function (TDI_original, ftn_main); | |
6166 | ||
35ee1c66 | 6167 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 6168 | |
6169 | if (old_context) | |
6170 | { | |
6171 | pop_function_context (); | |
6172 | saved_function_decls = saved_parent_function_decls; | |
6173 | } | |
6174 | current_function_decl = old_context; | |
7257a5d2 | 6175 | } |
6176 | ||
6177 | ||
89ac8ba1 | 6178 | /* Generate an appropriate return-statement for a procedure. */ |
6179 | ||
6180 | tree | |
6181 | gfc_generate_return (void) | |
6182 | { | |
6183 | gfc_symbol* sym; | |
6184 | tree result; | |
6185 | tree fndecl; | |
6186 | ||
6187 | sym = current_procedure_symbol; | |
6188 | fndecl = sym->backend_decl; | |
6189 | ||
6190 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
6191 | result = NULL_TREE; | |
6192 | else | |
6193 | { | |
6194 | result = get_proc_result (sym); | |
6195 | ||
6196 | /* Set the return value to the dummy result variable. The | |
6197 | types may be different for scalar default REAL functions | |
6198 | with -ff2c, therefore we have to convert. */ | |
6199 | if (result != NULL_TREE) | |
6200 | { | |
6201 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 6202 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
6203 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
6204 | result); | |
89ac8ba1 | 6205 | } |
6206 | } | |
6207 | ||
6208 | return build1_v (RETURN_EXPR, result); | |
6209 | } | |
6210 | ||
6211 | ||
d566c3e0 | 6212 | static void |
6213 | is_from_ieee_module (gfc_symbol *sym) | |
6214 | { | |
6215 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6216 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6217 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6218 | seen_ieee_symbol = 1; | |
6219 | } | |
6220 | ||
6221 | ||
6222 | static int | |
6223 | is_ieee_module_used (gfc_namespace *ns) | |
6224 | { | |
6225 | seen_ieee_symbol = 0; | |
6226 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6227 | return seen_ieee_symbol; | |
6228 | } | |
6229 | ||
6230 | ||
01d728a4 | 6231 | static gfc_omp_clauses *module_oacc_clauses; |
6232 | ||
6233 | ||
6234 | static void | |
6235 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6236 | { | |
6237 | gfc_omp_namelist *n; | |
6238 | ||
6239 | n = gfc_get_omp_namelist (); | |
6240 | n->sym = sym; | |
6241 | n->u.map_op = map_op; | |
6242 | ||
6243 | if (!module_oacc_clauses) | |
6244 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6245 | ||
6246 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6247 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6248 | ||
6249 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6250 | } | |
6251 | ||
6252 | ||
6253 | static void | |
6254 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6255 | { | |
6256 | if (sym->attr.use_assoc) | |
6257 | { | |
6258 | gfc_omp_map_op map_op; | |
6259 | ||
6260 | if (sym->attr.oacc_declare_create) | |
6261 | map_op = OMP_MAP_FORCE_ALLOC; | |
6262 | ||
6263 | if (sym->attr.oacc_declare_copyin) | |
6264 | map_op = OMP_MAP_FORCE_TO; | |
6265 | ||
6266 | if (sym->attr.oacc_declare_deviceptr) | |
6267 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6268 | ||
6269 | if (sym->attr.oacc_declare_device_resident) | |
6270 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6271 | ||
6272 | if (sym->attr.oacc_declare_create | |
6273 | || sym->attr.oacc_declare_copyin | |
6274 | || sym->attr.oacc_declare_deviceptr | |
6275 | || sym->attr.oacc_declare_device_resident) | |
6276 | { | |
6277 | sym->attr.referenced = 1; | |
6278 | add_clause (sym, map_op); | |
6279 | } | |
6280 | } | |
6281 | } | |
6282 | ||
6283 | ||
6284 | void | |
6285 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6286 | { | |
6287 | gfc_code *code; | |
6288 | gfc_oacc_declare *oc; | |
6289 | locus where = gfc_current_locus; | |
6290 | gfc_omp_clauses *omp_clauses = NULL; | |
6291 | gfc_omp_namelist *n, *p; | |
6292 | ||
6293 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6294 | ||
6295 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6296 | { | |
6297 | gfc_oacc_declare *new_oc; | |
6298 | ||
6299 | new_oc = gfc_get_oacc_declare (); | |
6300 | new_oc->next = ns->oacc_declare; | |
6301 | new_oc->clauses = module_oacc_clauses; | |
6302 | ||
6303 | ns->oacc_declare = new_oc; | |
6304 | module_oacc_clauses = NULL; | |
6305 | } | |
6306 | ||
6307 | if (!ns->oacc_declare) | |
6308 | return; | |
6309 | ||
6310 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6311 | { | |
6312 | if (oc->module_var) | |
6313 | continue; | |
6314 | ||
6315 | if (block) | |
f187ad6c | 6316 | gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed " |
01d728a4 | 6317 | "in BLOCK construct", &oc->loc); |
6318 | ||
6319 | ||
6320 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6321 | { | |
6322 | if (omp_clauses == NULL) | |
6323 | { | |
6324 | omp_clauses = oc->clauses; | |
6325 | continue; | |
6326 | } | |
6327 | ||
6328 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6329 | ; | |
6330 | ||
6331 | gcc_assert (p->next == NULL); | |
6332 | ||
6333 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6334 | omp_clauses = oc->clauses; | |
6335 | } | |
6336 | } | |
6337 | ||
6338 | if (!omp_clauses) | |
6339 | return; | |
6340 | ||
6341 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6342 | { | |
6343 | switch (n->u.map_op) | |
6344 | { | |
6345 | case OMP_MAP_DEVICE_RESIDENT: | |
6346 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6347 | break; | |
6348 | ||
6349 | default: | |
6350 | break; | |
6351 | } | |
6352 | } | |
6353 | ||
6354 | code = XCNEW (gfc_code); | |
6355 | code->op = EXEC_OACC_DECLARE; | |
6356 | code->loc = where; | |
6357 | ||
6358 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6359 | code->ext.oacc_declare->clauses = omp_clauses; | |
6360 | ||
6361 | code->block = XCNEW (gfc_code); | |
6362 | code->block->op = EXEC_OACC_DECLARE; | |
6363 | code->block->loc = where; | |
6364 | ||
6365 | if (ns->code) | |
6366 | code->block->next = ns->code; | |
6367 | ||
6368 | ns->code = code; | |
6369 | ||
6370 | return; | |
6371 | } | |
6372 | ||
6373 | ||
4ee9c684 | 6374 | /* Generate code for a function. */ |
6375 | ||
6376 | void | |
6377 | gfc_generate_function_code (gfc_namespace * ns) | |
6378 | { | |
6379 | tree fndecl; | |
6380 | tree old_context; | |
6381 | tree decl; | |
6382 | tree tmp; | |
d566c3e0 | 6383 | tree fpstate = NULL_TREE; |
89ac8ba1 | 6384 | stmtblock_t init, cleanup; |
4ee9c684 | 6385 | stmtblock_t body; |
89ac8ba1 | 6386 | gfc_wrapped_block try_block; |
5fa0fdc2 | 6387 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 6388 | gfc_symbol *sym; |
89ac8ba1 | 6389 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 6390 | int rank, ieee; |
e50e62f5 | 6391 | bool is_recursive; |
4ee9c684 | 6392 | |
6393 | sym = ns->proc_name; | |
89ac8ba1 | 6394 | previous_procedure_symbol = current_procedure_symbol; |
6395 | current_procedure_symbol = sym; | |
1b716045 | 6396 | |
8b7e5587 | 6397 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6398 | lost or worse. */ | |
4ee9c684 | 6399 | sym->tlink = sym; |
6400 | ||
6401 | /* Create the declaration for functions with global scope. */ | |
6402 | if (!sym->backend_decl) | |
d896f9b3 | 6403 | gfc_create_function_decl (ns, false); |
4ee9c684 | 6404 | |
6405 | fndecl = sym->backend_decl; | |
6406 | old_context = current_function_decl; | |
6407 | ||
6408 | if (old_context) | |
6409 | { | |
6410 | push_function_context (); | |
6411 | saved_parent_function_decls = saved_function_decls; | |
6412 | saved_function_decls = NULL_TREE; | |
6413 | } | |
6414 | ||
1b716045 | 6415 | trans_function_start (sym); |
4ee9c684 | 6416 | |
89ac8ba1 | 6417 | gfc_init_block (&init); |
4ee9c684 | 6418 | |
c6871095 | 6419 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6420 | { | |
6421 | /* Copy length backend_decls to all entry point result | |
6422 | symbols. */ | |
6423 | gfc_entry_list *el; | |
6424 | tree backend_decl; | |
6425 | ||
eeebe20b | 6426 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6427 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6428 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6429 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6430 | } |
6431 | ||
4ee9c684 | 6432 | /* Translate COMMON blocks. */ |
6433 | gfc_trans_common (ns); | |
6434 | ||
c750cc52 | 6435 | /* Null the parent fake result declaration if this namespace is |
6436 | a module function or an external procedures. */ | |
6437 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6438 | || ns->parent == NULL) | |
6439 | parent_fake_result_decl = NULL_TREE; | |
6440 | ||
2b685f8e | 6441 | gfc_generate_contained_functions (ns); |
6442 | ||
a961ca30 | 6443 | has_coarray_vars = false; |
4ee9c684 | 6444 | generate_local_vars (ns); |
5b11d932 | 6445 | |
4fe73152 | 6446 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6447 | generate_coarray_init (ns); |
6448 | ||
c750cc52 | 6449 | /* Keep the parent fake result declaration in module functions |
6450 | or external procedures. */ | |
6451 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6452 | || ns->parent == NULL) | |
6453 | current_fake_result_decl = parent_fake_result_decl; | |
6454 | else | |
6455 | current_fake_result_decl = NULL_TREE; | |
6456 | ||
89ac8ba1 | 6457 | is_recursive = sym->attr.recursive |
6458 | || (sym->attr.entry_master | |
6459 | && sym->ns->entries->sym->attr.recursive); | |
6460 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6461 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6462 | { |
6463 | char * msg; | |
6464 | ||
87fda26c | 6465 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6466 | sym->name); | |
4c796f54 | 6467 | recurcheckvar = gfc_create_var (logical_type_node, "is_recursive"); |
89ac8ba1 | 6468 | TREE_STATIC (recurcheckvar) = 1; |
4c796f54 | 6469 | DECL_INITIAL (recurcheckvar) = logical_false_node; |
89ac8ba1 | 6470 | gfc_add_expr_to_block (&init, recurcheckvar); |
6471 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6472 | &sym->declared_at, msg); | |
4c796f54 | 6473 | gfc_add_modify (&init, recurcheckvar, logical_true_node); |
434f0922 | 6474 | free (msg); |
89ac8ba1 | 6475 | } |
4ee9c684 | 6476 | |
d566c3e0 | 6477 | /* Check if an IEEE module is used in the procedure. If so, save |
6478 | the floating point state. */ | |
6479 | ieee = is_ieee_module_used (ns); | |
6480 | if (ieee) | |
d7333535 | 6481 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6482 | |
4ee9c684 | 6483 | /* Now generate the code for the body of this function. */ |
6484 | gfc_init_block (&body); | |
6485 | ||
6486 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6487 | && sym->attr.subroutine) |
4ee9c684 | 6488 | { |
6489 | tree alternate_return; | |
c750cc52 | 6490 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6491 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6492 | } |
6493 | ||
1b716045 | 6494 | if (ns->entries) |
6495 | { | |
6496 | /* Jump to the correct entry point. */ | |
6497 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6498 | gfc_add_expr_to_block (&body, tmp); | |
6499 | } | |
6500 | ||
a4abf8a0 | 6501 | /* If bounds-checking is enabled, generate code to check passed in actual |
6502 | arguments against the expected dummy argument attributes (e.g. string | |
6503 | lengths). */ | |
c1630d65 | 6504 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6505 | add_argument_checking (&body, sym); |
6506 | ||
01d728a4 | 6507 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6508 | |
4ee9c684 | 6509 | tmp = gfc_trans_code (ns->code); |
6510 | gfc_add_expr_to_block (&body, tmp); | |
6511 | ||
1caa6ab1 | 6512 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6513 | || (sym->result && sym->result != sym | |
6514 | && sym->result->ts.type == BT_DERIVED | |
6515 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6516 | { |
1caa6ab1 | 6517 | bool artificial_result_decl = false; |
89ac8ba1 | 6518 | tree result = get_proc_result (sym); |
1caa6ab1 | 6519 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6520 | ||
6521 | /* Make sure that a function returning an object with | |
6522 | alloc/pointer_components always has a result, where at least | |
6523 | the allocatable/pointer components are set to zero. */ | |
6524 | if (result == NULL_TREE && sym->attr.function | |
6525 | && ((sym->result->ts.type == BT_DERIVED | |
6526 | && (sym->attr.allocatable | |
6527 | || sym->attr.pointer | |
6528 | || sym->result->ts.u.derived->attr.alloc_comp | |
6529 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6530 | || (sym->result->ts.type == BT_CLASS | |
6531 | && (CLASS_DATA (sym)->attr.allocatable | |
6532 | || CLASS_DATA (sym)->attr.class_pointer | |
6533 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6534 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6535 | { | |
6536 | artificial_result_decl = true; | |
6537 | result = gfc_get_fake_result_decl (sym, 0); | |
6538 | } | |
4ee9c684 | 6539 | |
42766cb3 | 6540 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6541 | { |
deb7edfc | 6542 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6543 | && sym->result == sym) | |
6544 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6545 | null_pointer_node)); | |
42766cb3 | 6546 | else if (sym->ts.type == BT_CLASS |
6547 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6548 | && CLASS_DATA (sym)->attr.dimension == 0 |
6549 | && sym->result == sym) | |
42766cb3 | 6550 | { |
6551 | tmp = CLASS_DATA (sym)->backend_decl; | |
6552 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6553 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6554 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6555 | null_pointer_node)); | |
6556 | } | |
deb7edfc | 6557 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6558 | && !sym->attr.allocatable) |
53169279 | 6559 | { |
1caa6ab1 | 6560 | gfc_expr *init_exp; |
6561 | /* Arrays are not initialized using the default initializer of | |
6562 | their elements. Therefore only check if a default | |
6563 | initializer is available when the result is scalar. */ | |
36d310d0 | 6564 | init_exp = rsym->as ? NULL |
6565 | : gfc_generate_initializer (&rsym->ts, true); | |
1caa6ab1 | 6566 | if (init_exp) |
6567 | { | |
6568 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6569 | gfc_free_expr (init_exp); | |
6570 | gfc_add_expr_to_block (&init, tmp); | |
6571 | } | |
6572 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6573 | { | |
6574 | rank = rsym->as ? rsym->as->rank : 0; | |
6575 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6576 | rank); | |
6577 | gfc_prepend_expr_to_block (&body, tmp); | |
6578 | } | |
53169279 | 6579 | } |
5176859a | 6580 | } |
e50e62f5 | 6581 | |
1caa6ab1 | 6582 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6583 | { |
6584 | /* TODO: move to the appropriate place in resolve.c. */ | |
8b72061f | 6585 | if (warn_return_type > 0 && sym == sym->result) |
4166acc7 | 6586 | gfc_warning (OPT_Wreturn_type, |
6587 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6588 | sym->name, &sym->declared_at); |
8b72061f | 6589 | if (warn_return_type > 0) |
90a4a5a6 | 6590 | TREE_NO_WARNING(sym->backend_decl) = 1; |
fa7b6574 | 6591 | } |
1caa6ab1 | 6592 | if (result != NULL_TREE) |
89ac8ba1 | 6593 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6594 | } |
89ac8ba1 | 6595 | |
6596 | gfc_init_block (&cleanup); | |
6597 | ||
6598 | /* Reset recursion-check variable. */ | |
6599 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6600 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6601 | { |
4c796f54 | 6602 | gfc_add_modify (&cleanup, recurcheckvar, logical_false_node); |
89ac8ba1 | 6603 | recurcheckvar = NULL; |
e50e62f5 | 6604 | } |
2294b616 | 6605 | |
d566c3e0 | 6606 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6607 | if (ieee) | |
d7333535 | 6608 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6609 | |
89ac8ba1 | 6610 | /* Finish the function body and add init and cleanup code. */ |
6611 | tmp = gfc_finish_block (&body); | |
6612 | gfc_start_wrapped_block (&try_block, tmp); | |
6613 | /* Add code to create and cleanup arrays. */ | |
6614 | gfc_trans_deferred_vars (sym, &try_block); | |
6615 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6616 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6617 | |
6618 | /* Add all the decls we created during processing. */ | |
267f3c67 | 6619 | decl = nreverse (saved_function_decls); |
4ee9c684 | 6620 | while (decl) |
6621 | { | |
6622 | tree next; | |
6623 | ||
1767a056 | 6624 | next = DECL_CHAIN (decl); |
6625 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6626 | pushdecl (decl); |
4ee9c684 | 6627 | decl = next; |
6628 | } | |
6629 | saved_function_decls = NULL_TREE; | |
6630 | ||
89ac8ba1 | 6631 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6632 | decl = getdecls (); |
4ee9c684 | 6633 | |
6634 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6635 | poplevel (1, 1); |
4ee9c684 | 6636 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6637 | ||
e5004242 | 6638 | DECL_SAVED_TREE (fndecl) |
6639 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6640 | DECL_INITIAL (fndecl)); | |
6641 | ||
4ee9c684 | 6642 | /* Output the GENERIC tree. */ |
6643 | dump_function (TDI_original, fndecl); | |
6644 | ||
6645 | /* Store the end of the function, so that we get good line number | |
6646 | info for the epilogue. */ | |
6647 | cfun->function_end_locus = input_location; | |
6648 | ||
6649 | /* We're leaving the context of this function, so zap cfun. | |
6650 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6651 | tree_rest_of_compilation. */ | |
87d4aa85 | 6652 | set_cfun (NULL); |
4ee9c684 | 6653 | |
6654 | if (old_context) | |
6655 | { | |
6656 | pop_function_context (); | |
6657 | saved_function_decls = saved_parent_function_decls; | |
6658 | } | |
6659 | current_function_decl = old_context; | |
6660 | ||
1f7747bd | 6661 | if (decl_function_context (fndecl)) |
6662 | { | |
6663 | /* Register this function with cgraph just far enough to get it | |
6664 | added to our parent's nested function list. | |
6665 | If there are static coarrays in this function, the nested _caf_init | |
6666 | function has already called cgraph_create_node, which also created | |
6667 | the cgraph node for this function. */ | |
4fe73152 | 6668 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
0d565f19 | 6669 | (void) cgraph_node::get_create (fndecl); |
1f7747bd | 6670 | } |
4ee9c684 | 6671 | else |
35ee1c66 | 6672 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6673 | |
6674 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6675 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6676 | |
6677 | if (sym->attr.is_main_program) | |
6678 | create_main_function (fndecl); | |
89ac8ba1 | 6679 | |
6680 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6681 | } |
6682 | ||
7257a5d2 | 6683 | |
4ee9c684 | 6684 | void |
6685 | gfc_generate_constructors (void) | |
6686 | { | |
22d678e8 | 6687 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6688 | #if 0 |
6689 | tree fnname; | |
6690 | tree type; | |
6691 | tree fndecl; | |
6692 | tree decl; | |
6693 | tree tmp; | |
6694 | ||
6695 | if (gfc_static_ctors == NULL_TREE) | |
6696 | return; | |
6697 | ||
db85cc4f | 6698 | fnname = get_file_function_name ("I"); |
e1036019 | 6699 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6700 | |
e60a6f7b | 6701 | fndecl = build_decl (input_location, |
6702 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6703 | TREE_PUBLIC (fndecl) = 1; |
6704 | ||
e60a6f7b | 6705 | decl = build_decl (input_location, |
6706 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6707 | DECL_ARTIFICIAL (decl) = 1; |
6708 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6709 | DECL_CONTEXT (decl) = fndecl; |
6710 | DECL_RESULT (fndecl) = decl; | |
6711 | ||
6712 | pushdecl (fndecl); | |
6713 | ||
6714 | current_function_decl = fndecl; | |
6715 | ||
b2c4af5e | 6716 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6717 | |
b2c4af5e | 6718 | make_decl_rtl (fndecl); |
4ee9c684 | 6719 | |
00cf115c | 6720 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6721 | |
cde2be84 | 6722 | pushlevel (); |
4ee9c684 | 6723 | |
6724 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6725 | { | |
389dd41b | 6726 | tmp = build_call_expr_loc (input_location, |
6727 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6728 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6729 | } |
6730 | ||
e5004242 | 6731 | decl = getdecls (); |
cde2be84 | 6732 | poplevel (1, 1); |
4ee9c684 | 6733 | |
6734 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6735 | DECL_SAVED_TREE (fndecl) |
6736 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6737 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6738 | |
6739 | free_after_parsing (cfun); | |
6740 | free_after_compilation (cfun); | |
6741 | ||
6148a911 | 6742 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6743 | |
6744 | current_function_decl = NULL_TREE; | |
6745 | #endif | |
6746 | } | |
6747 | ||
9ec7c303 | 6748 | /* Translates a BLOCK DATA program unit. This means emitting the |
6749 | commons contained therein plus their initializations. We also emit | |
6750 | a globally visible symbol to make sure that each BLOCK DATA program | |
6751 | unit remains unique. */ | |
6752 | ||
6753 | void | |
6754 | gfc_generate_block_data (gfc_namespace * ns) | |
6755 | { | |
6756 | tree decl; | |
6757 | tree id; | |
6758 | ||
b31f705b | 6759 | /* Tell the backend the source location of the block data. */ |
6760 | if (ns->proc_name) | |
6761 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6762 | else | |
6763 | gfc_set_backend_locus (&gfc_current_locus); | |
6764 | ||
6765 | /* Process the DATA statements. */ | |
9ec7c303 | 6766 | gfc_trans_common (ns); |
6767 | ||
b31f705b | 6768 | /* Create a global symbol with the mane of the block data. This is to |
6769 | generate linker errors if the same name is used twice. It is never | |
6770 | really used. */ | |
9ec7c303 | 6771 | if (ns->proc_name) |
6772 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6773 | else | |
6774 | id = get_identifier ("__BLOCK_DATA__"); | |
6775 | ||
e60a6f7b | 6776 | decl = build_decl (input_location, |
6777 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6778 | TREE_PUBLIC (decl) = 1; |
6779 | TREE_STATIC (decl) = 1; | |
df4d540f | 6780 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6781 | |
6782 | pushdecl (decl); | |
6783 | rest_of_decl_compilation (decl, 1, 0); | |
6784 | } | |
6785 | ||
b549d2a5 | 6786 | |
6a7084d7 | 6787 | /* Process the local variables of a BLOCK construct. */ |
6788 | ||
6789 | void | |
3c82e013 | 6790 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6791 | { |
6792 | tree decl; | |
6793 | ||
672bd2da | 6794 | saved_local_decls = NULL_TREE; |
a961ca30 | 6795 | has_coarray_vars = false; |
6796 | ||
6a7084d7 | 6797 | generate_local_vars (ns); |
6798 | ||
4fe73152 | 6799 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6800 | generate_coarray_init (ns); |
6801 | ||
267f3c67 | 6802 | decl = nreverse (saved_local_decls); |
6a7084d7 | 6803 | while (decl) |
6804 | { | |
6805 | tree next; | |
6806 | ||
1767a056 | 6807 | next = DECL_CHAIN (decl); |
6808 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6809 | pushdecl (decl); |
6810 | decl = next; | |
6811 | } | |
6812 | saved_local_decls = NULL_TREE; | |
6813 | } | |
6814 | ||
6815 | ||
4ee9c684 | 6816 | #include "gt-fortran-trans-decl.h" |