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4ee9c684 | 1 | /* Backend function setup |
8e8f6434 | 2 | Copyright (C) 2002-2018 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 | |
47e6a59a | 1513 | if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS) |
1514 | GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1; | |
1515 | ||
4ee9c684 | 1516 | /* Create a character length variable. */ |
1517 | if (sym->ts.type == BT_CHARACTER) | |
1518 | { | |
617125a6 | 1519 | /* For a deferred dummy, make a new string length variable. */ |
1520 | if (sym->ts.deferred | |
1521 | && | |
1522 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1523 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1524 | ||
d1b1479f | 1525 | if (sym->ts.deferred && byref) |
617125a6 | 1526 | { |
d1b1479f | 1527 | /* The string length of a deferred char array is stored in the |
1528 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1529 | marked as a result. Exempt this variable from generating a | |
1530 | temporary for it. */ | |
1531 | if (sym->attr.result) | |
1532 | { | |
1533 | /* We need to insert a indirect ref for param decls. */ | |
1534 | if (sym->ts.u.cl->backend_decl | |
1535 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1536 | { |
1537 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
a4731200 | 1538 | sym->ts.u.cl->backend_decl = |
d1b1479f | 1539 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
a4731200 | 1540 | } |
ddcfeaf1 | 1541 | } |
d1b1479f | 1542 | /* For all other parameters make sure, that they are copied so |
1543 | that the value and any modifications are local to the routine | |
1544 | by generating a temporary variable. */ | |
1545 | else if (sym->attr.function | |
1546 | && sym->ts.u.cl->passed_length == NULL | |
1547 | && sym->ts.u.cl->backend_decl) | |
1548 | { | |
1549 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1550 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1551 | sym->ts.u.cl->backend_decl | |
1552 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1553 | else | |
a4731200 | 1554 | sym->ts.u.cl->backend_decl = NULL_TREE; |
d1b1479f | 1555 | } |
617125a6 | 1556 | } |
1557 | ||
eeebe20b | 1558 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1559 | length = gfc_create_string_length (sym); |
1560 | else | |
eeebe20b | 1561 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 1562 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1563 | { |
d95efb59 | 1564 | /* Add the string length to the same context as the symbol. */ |
1565 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1566 | gfc_add_decl_to_function (length); | |
1567 | else | |
1568 | gfc_add_decl_to_parent_function (length); | |
1569 | ||
1570 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1571 | DECL_CONTEXT (length)); | |
1572 | ||
d4163395 | 1573 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1574 | } |
4ee9c684 | 1575 | } |
1576 | ||
1577 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1578 | if ((sym->attr.dimension || sym->attr.codimension) |
1579 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1580 | { |
d95efb59 | 1581 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1582 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1583 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1584 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1585 | sym->backend_decl = decl; | |
4ee9c684 | 1586 | } |
1587 | ||
c6793847 | 1588 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1589 | some caller is expecting an expression to apply the component refs to. | |
1590 | Therefore the descriptor is only created and stored in | |
1591 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1592 | responsible to extract it from there, when the descriptor is | |
1593 | desired. */ | |
1594 | if (IS_CLASS_ARRAY (sym) | |
1595 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1596 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1597 | { | |
1598 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1599 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1600 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1601 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1602 | sym->backend_decl = decl; | |
1603 | } | |
1604 | ||
4ee9c684 | 1605 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1606 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1607 | { | |
1608 | gfc_add_assign_aux_vars (sym); | |
1609 | } | |
9579733e | 1610 | |
fd23cc08 | 1611 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1612 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1613 | ||
fd23cc08 | 1614 | return sym->backend_decl; |
4ee9c684 | 1615 | } |
1616 | ||
1617 | if (sym->backend_decl) | |
1618 | return sym->backend_decl; | |
1619 | ||
a25debd0 | 1620 | /* Special case for array-valued named constants from intrinsic |
1621 | procedures; those are inlined. */ | |
d566c3e0 | 1622 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1623 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1624 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1625 | intrinsic_array_parameter = true; |
1626 | ||
044bbd71 | 1627 | /* If use associated compilation, use the module |
094bca96 | 1628 | declaration. */ |
044bbd71 | 1629 | if ((sym->attr.flavor == FL_VARIABLE |
1630 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1631 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1632 | && !intrinsic_array_parameter |
1633 | && sym->module | |
1634 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1635 | { |
1636 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1637 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1638 | return sym->backend_decl; | |
1639 | } | |
7ea64434 | 1640 | |
4ee9c684 | 1641 | if (sym->attr.flavor == FL_PROCEDURE) |
1642 | { | |
77d080ca | 1643 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1644 | procedure pointers and procptr initialization targets. */ |
1650ce2f | 1645 | if (sym->attr.use_assoc |
1646 | || sym->attr.used_in_submodule | |
1647 | || sym->attr.intrinsic | |
77d080ca | 1648 | || sym->attr.if_source != IFSRC_DECL) |
802532b9 | 1649 | { |
1650 | decl = gfc_get_extern_function_decl (sym); | |
1651 | gfc_set_decl_location (decl, &sym->declared_at); | |
1652 | } | |
1653 | else | |
1654 | { | |
1655 | if (!sym->backend_decl) | |
1656 | build_function_decl (sym, false); | |
1657 | decl = sym->backend_decl; | |
1658 | } | |
4ee9c684 | 1659 | return decl; |
1660 | } | |
1661 | ||
1662 | if (sym->attr.intrinsic) | |
382ad5c3 | 1663 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1664 | |
1665 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1666 | type declaration. For associate names, the target character |
1667 | length is used. Set 'length' to a constant so that if the | |
8b7e5587 | 1668 | string length is a variable, it is not finished a second time. */ |
4ee9c684 | 1669 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1670 | { |
bb2fe503 | 1671 | if (sym->attr.associate_var |
1672 | && sym->ts.deferred | |
1673 | && sym->assoc && sym->assoc->target | |
1674 | && ((sym->assoc->target->expr_type == EXPR_VARIABLE | |
1675 | && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER) | |
ef718f2c | 1676 | || sym->assoc->target->expr_type != EXPR_VARIABLE)) |
bb2fe503 | 1677 | sym->ts.u.cl->backend_decl = NULL_TREE; |
1678 | ||
c3639856 | 1679 | if (sym->attr.associate_var |
1680 | && sym->ts.u.cl->backend_decl | |
ef718f2c | 1681 | && (VAR_P (sym->ts.u.cl->backend_decl) |
1682 | || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)) | |
c3639856 | 1683 | length = gfc_index_zero_node; |
1684 | else | |
1685 | length = gfc_create_string_length (sym); | |
1686 | } | |
4ee9c684 | 1687 | |
1688 | /* Create the decl for the variable. */ | |
e60a6f7b | 1689 | decl = build_decl (sym->declared_at.lb->location, |
1690 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1691 | |
1236e28b | 1692 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1693 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1694 | decl_attributes (&decl, attributes, 0); | |
1695 | ||
f888a3fb | 1696 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1697 | This is done here rather than in gfc_finish_var_decl because it |
1698 | is different for string length variables. */ | |
8b7e5587 | 1699 | if (sym->module || sym->fn_result_spec) |
df4d540f | 1700 | { |
1236e28b | 1701 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1702 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1703 | DECL_IGNORED_P (decl) = 1; |
1704 | } | |
4ee9c684 | 1705 | |
bc5663df | 1706 | if (sym->attr.select_type_temporary) |
1707 | { | |
1708 | DECL_ARTIFICIAL (decl) = 1; | |
1709 | DECL_IGNORED_P (decl) = 1; | |
1710 | } | |
1711 | ||
7a777e43 | 1712 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1713 | { |
1714 | /* Create variables to hold the non-constant bits of array info. */ | |
1715 | gfc_build_qualified_array (decl, sym); | |
1716 | ||
b3c3927c | 1717 | if (sym->attr.contiguous |
1718 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1719 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1720 | } | |
1721 | ||
0a96a7cc | 1722 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1723 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1724 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1725 | (CLASS_DATA (sym)->attr.dimension |
1726 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1727 | || (sym->ts.type == BT_DERIVED |
1728 | && (sym->ts.u.derived->attr.alloc_comp | |
1729 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1730 | && !sym->ns->proc_name->attr.is_main_program | |
1731 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1732 | /* This applies a derived type default initializer. */ |
1733 | || (sym->ts.type == BT_DERIVED | |
1734 | && sym->attr.save == SAVE_NONE | |
1735 | && !sym->attr.data | |
1736 | && !sym->attr.allocatable | |
1737 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1738 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1739 | gfc_defer_symbol_init (sym); |
2294b616 | 1740 | |
4d8caf18 | 1741 | /* Associate names can use the hidden string length variable |
1742 | of their associated target. */ | |
1743 | if (sym->ts.type == BT_CHARACTER | |
cfd8c4eb | 1744 | && TREE_CODE (length) != INTEGER_CST |
1745 | && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF) | |
4d8caf18 | 1746 | { |
1747 | gfc_finish_var_decl (length, sym); | |
1748 | gcc_assert (!sym->value); | |
1749 | } | |
1750 | ||
4ee9c684 | 1751 | gfc_finish_var_decl (decl, sym); |
1752 | ||
bda1f152 | 1753 | if (sym->ts.type == BT_CHARACTER) |
4d8caf18 | 1754 | /* Character variables need special handling. */ |
1755 | gfc_allocate_lang_decl (decl); | |
1033248c | 1756 | |
47e6a59a | 1757 | if (sym->assoc && sym->attr.subref_array_pointer) |
1758 | sym->attr.pointer = 1; | |
1759 | ||
1760 | if (sym->attr.pointer && sym->attr.dimension | |
1761 | && !sym->ts.deferred | |
1762 | && !(sym->attr.select_type_temporary | |
1763 | && !sym->attr.subref_array_pointer)) | |
1764 | GFC_DECL_PTR_ARRAY_P (decl) = 1; | |
1033248c | 1765 | |
fd23cc08 | 1766 | if (sym->ts.type == BT_CLASS) |
47e6a59a | 1767 | GFC_DECL_CLASS(decl) = 1; |
fd23cc08 | 1768 | |
4ee9c684 | 1769 | sym->backend_decl = decl; |
1770 | ||
c8f1568f | 1771 | if (sym->attr.assign) |
21ebda4d | 1772 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1773 | |
cd2c99b8 | 1774 | if (intrinsic_array_parameter) |
1775 | { | |
1776 | TREE_STATIC (decl) = 1; | |
1777 | DECL_EXTERNAL (decl) = 0; | |
1778 | } | |
1779 | ||
1780 | if (TREE_STATIC (decl) | |
1781 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1782 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
14eab729 | 1783 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
a961ca30 | 1784 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1785 | && (flag_coarray != GFC_FCOARRAY_LIB |
f0efd2e8 | 1786 | || !sym->attr.codimension || sym->attr.allocatable) |
1787 | && !(sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
1788 | && !(sym->ts.type == BT_CLASS | |
1789 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type)) | |
a545a8f8 | 1790 | { |
1791 | /* Add static initializer. For procedures, it is only needed if | |
1792 | SAVE is specified otherwise they need to be reinitialized | |
1793 | every time the procedure is entered. The TREE_STATIC is | |
1794 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1795 | |
bda1f152 | 1796 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1797 | TREE_TYPE (decl), sym->attr.dimension |
1798 | || (sym->attr.codimension | |
1799 | && sym->attr.allocatable), | |
1800 | sym->attr.pointer || sym->attr.allocatable | |
1801 | || sym->ts.type == BT_CLASS, | |
1802 | sym->attr.proc_pointer); | |
bda1f152 | 1803 | } |
1804 | ||
9579733e | 1805 | if (!TREE_STATIC (decl) |
1806 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1807 | && !sym->attr.pointer | |
1808 | && !sym->attr.allocatable | |
bc5663df | 1809 | && !sym->attr.proc_pointer |
1810 | && !sym->attr.select_type_temporary) | |
9579733e | 1811 | DECL_BY_REFERENCE (decl) = 1; |
1812 | ||
cf5f881f | 1813 | if (sym->attr.associate_var) |
1814 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1815 | ||
ebad7c3e | 1816 | if (sym->attr.vtab |
1817 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1818 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1819 | |
4ee9c684 | 1820 | return decl; |
1821 | } | |
1822 | ||
1823 | ||
dbe60343 | 1824 | /* Substitute a temporary variable in place of the real one. */ |
1825 | ||
1826 | void | |
1827 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1828 | { | |
1829 | save->attr = sym->attr; | |
1830 | save->decl = sym->backend_decl; | |
1831 | ||
1832 | gfc_clear_attr (&sym->attr); | |
1833 | sym->attr.referenced = 1; | |
1834 | sym->attr.flavor = FL_VARIABLE; | |
1835 | ||
1836 | sym->backend_decl = decl; | |
1837 | } | |
1838 | ||
1839 | ||
1840 | /* Restore the original variable. */ | |
1841 | ||
1842 | void | |
1843 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1844 | { | |
1845 | sym->attr = save->attr; | |
1846 | sym->backend_decl = save->decl; | |
1847 | } | |
1848 | ||
1849 | ||
cad0ddcf | 1850 | /* Declare a procedure pointer. */ |
1851 | ||
1852 | static tree | |
1853 | get_proc_pointer_decl (gfc_symbol *sym) | |
1854 | { | |
1855 | tree decl; | |
36b0a1b0 | 1856 | tree attributes; |
cad0ddcf | 1857 | |
1858 | decl = sym->backend_decl; | |
1859 | if (decl) | |
1860 | return decl; | |
1861 | ||
e60a6f7b | 1862 | decl = build_decl (input_location, |
1863 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1864 | build_pointer_type (gfc_get_function_type (sym))); |
1865 | ||
ea6f8461 | 1866 | if (sym->module) |
1867 | { | |
1868 | /* Apply name mangling. */ | |
1869 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1870 | if (sym->attr.use_assoc) | |
1871 | DECL_IGNORED_P (decl) = 1; | |
1872 | } | |
a90fe829 | 1873 | |
e72f979a | 1874 | if ((sym->ns->proc_name |
1875 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1876 | || sym->attr.contained) |
1877 | gfc_add_decl_to_function (decl); | |
cf269acc | 1878 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1879 | gfc_add_decl_to_parent_function (decl); |
1880 | ||
1881 | sym->backend_decl = decl; | |
1882 | ||
cf269acc | 1883 | /* If a variable is USE associated, it's always external. */ |
1884 | if (sym->attr.use_assoc) | |
1885 | { | |
1886 | DECL_EXTERNAL (decl) = 1; | |
1887 | TREE_PUBLIC (decl) = 1; | |
1888 | } | |
1889 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1890 | { | |
1891 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1892 | TREE_PUBLIC (decl) = 1; |
1893 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1894 | { | |
1895 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1896 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1897 | } | |
cf269acc | 1898 | TREE_STATIC (decl) = 1; |
1899 | } | |
1900 | ||
cad0ddcf | 1901 | if (!sym->attr.use_assoc |
1902 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1903 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1904 | TREE_STATIC (decl) = 1; | |
1905 | ||
1906 | if (TREE_STATIC (decl) && sym->value) | |
1907 | { | |
1908 | /* Add static initializer. */ | |
1909 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1910 | TREE_TYPE (decl), |
1911 | sym->attr.dimension, | |
1912 | false, true); | |
cad0ddcf | 1913 | } |
1914 | ||
8fb1768c | 1915 | /* Handle threadprivate procedure pointers. */ |
1916 | if (sym->attr.threadprivate | |
1917 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1918 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1919 | |
36b0a1b0 | 1920 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1921 | decl_attributes (&decl, attributes, 0); | |
1922 | ||
cad0ddcf | 1923 | return decl; |
1924 | } | |
1925 | ||
1926 | ||
4ee9c684 | 1927 | /* Get a basic decl for an external function. */ |
1928 | ||
1929 | tree | |
1930 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1931 | { | |
1932 | tree type; | |
1933 | tree fndecl; | |
36b0a1b0 | 1934 | tree attributes; |
4ee9c684 | 1935 | gfc_expr e; |
1936 | gfc_intrinsic_sym *isym; | |
1937 | gfc_expr argexpr; | |
17000b91 | 1938 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1939 | tree name; |
1940 | tree mangled_name; | |
83aeedb9 | 1941 | gfc_gsymbol *gsym; |
4ee9c684 | 1942 | |
1943 | if (sym->backend_decl) | |
1944 | return sym->backend_decl; | |
1945 | ||
1b716045 | 1946 | /* We should never be creating external decls for alternate entry points. |
1947 | The procedure may be an alternate entry point, but we don't want/need | |
1948 | to know that. */ | |
22d678e8 | 1949 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1950 | |
cad0ddcf | 1951 | if (sym->attr.proc_pointer) |
1952 | return get_proc_pointer_decl (sym); | |
1953 | ||
83aeedb9 | 1954 | /* See if this is an external procedure from the same file. If so, |
1955 | return the backend_decl. */ | |
da5c730d | 1956 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1957 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1958 | |
c8b913ab | 1959 | if (gsym && !gsym->defined) |
1960 | gsym = NULL; | |
1961 | ||
1962 | /* This can happen because of C binding. */ | |
1963 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1964 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1965 | goto module_sym; | |
1966 | ||
044bbd71 | 1967 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1968 | && !sym->backend_decl | |
1969 | && gsym && gsym->ns | |
1970 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1971 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1972 | { |
d896f9b3 | 1973 | if (!gsym->ns->proc_name->backend_decl) |
1974 | { | |
1975 | /* By construction, the external function cannot be | |
1976 | a contained procedure. */ | |
1977 | locus old_loc; | |
d896f9b3 | 1978 | |
4671339c | 1979 | gfc_save_backend_locus (&old_loc); |
9078126c | 1980 | push_cfun (NULL); |
d896f9b3 | 1981 | |
1982 | gfc_create_function_decl (gsym->ns, true); | |
1983 | ||
1984 | pop_cfun (); | |
4671339c | 1985 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1986 | } |
1987 | ||
83aeedb9 | 1988 | /* If the namespace has entries, the proc_name is the |
1989 | entry master. Find the entry and use its backend_decl. | |
1990 | otherwise, use the proc_name backend_decl. */ | |
1991 | if (gsym->ns->entries) | |
1992 | { | |
1993 | gfc_entry_list *entry = gsym->ns->entries; | |
1994 | ||
1995 | for (; entry; entry = entry->next) | |
1996 | { | |
1997 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1998 | { | |
1999 | sym->backend_decl = entry->sym->backend_decl; | |
2000 | break; | |
2001 | } | |
2002 | } | |
2003 | } | |
2004 | else | |
40c74b02 | 2005 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 2006 | |
2007 | if (sym->backend_decl) | |
40c74b02 | 2008 | { |
2009 | /* Avoid problems of double deallocation of the backend declaration | |
2010 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2011 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2012 | sym->attr.use_assoc = 0; | |
2013 | ||
2014 | return sym->backend_decl; | |
2015 | } | |
83aeedb9 | 2016 | } |
2017 | ||
7ea64434 | 2018 | /* See if this is a module procedure from the same file. If so, |
2019 | return the backend_decl. */ | |
2020 | if (sym->module) | |
2021 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2022 | ||
c8b913ab | 2023 | module_sym: |
2024 | if (gsym && gsym->ns | |
2025 | && (gsym->type == GSYM_MODULE | |
2026 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 2027 | { |
2028 | gfc_symbol *s; | |
2029 | ||
2030 | s = NULL; | |
c8b913ab | 2031 | if (gsym->type == GSYM_MODULE) |
2032 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2033 | else | |
2034 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2035 | ||
7ea64434 | 2036 | if (s && s->backend_decl) |
2037 | { | |
85ec2f13 | 2038 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2039 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2040 | true); | |
2041 | else if (sym->ts.type == BT_CHARACTER) | |
2042 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 2043 | sym->backend_decl = s->backend_decl; |
2044 | return sym->backend_decl; | |
2045 | } | |
2046 | } | |
2047 | ||
4ee9c684 | 2048 | if (sym->attr.intrinsic) |
2049 | { | |
2050 | /* Call the resolution function to get the actual name. This is | |
2051 | a nasty hack which relies on the resolution functions only looking | |
2052 | at the first argument. We pass NULL for the second argument | |
2053 | otherwise things like AINT get confused. */ | |
2054 | isym = gfc_find_function (sym->name); | |
22d678e8 | 2055 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 2056 | |
2057 | memset (&e, 0, sizeof (e)); | |
2058 | e.expr_type = EXPR_FUNCTION; | |
2059 | ||
2060 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 2061 | gcc_assert (isym->formal); |
4ee9c684 | 2062 | argexpr.ts = isym->formal->ts; |
2063 | ||
2064 | if (isym->formal->next == NULL) | |
2065 | isym->resolve.f1 (&e, &argexpr); | |
2066 | else | |
2067 | { | |
37e0271a | 2068 | if (isym->formal->next->next == NULL) |
2069 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2070 | else | |
2071 | { | |
7fe55cc9 | 2072 | if (isym->formal->next->next->next == NULL) |
2073 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2074 | else | |
2075 | { | |
2076 | /* All specific intrinsics take less than 5 arguments. */ | |
2077 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2078 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2079 | } | |
37e0271a | 2080 | } |
4ee9c684 | 2081 | } |
bdaed7d2 | 2082 | |
829d7a08 | 2083 | if (flag_f2c |
bdaed7d2 | 2084 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2085 | || e.ts.type == BT_COMPLEX)) | |
2086 | { | |
2087 | /* Specific which needs a different implementation if f2c | |
2088 | calling conventions are used. */ | |
17000b91 | 2089 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 2090 | } |
2091 | else | |
17000b91 | 2092 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 2093 | |
4ee9c684 | 2094 | name = get_identifier (s); |
2095 | mangled_name = name; | |
2096 | } | |
2097 | else | |
2098 | { | |
2099 | name = gfc_sym_identifier (sym); | |
2100 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2101 | } | |
2102 | ||
2103 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2104 | fndecl = build_decl (input_location, |
2105 | FUNCTION_DECL, name, type); | |
4ee9c684 | 2106 | |
e27454ee | 2107 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2108 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2109 | the opposite of declaring a function as static in C). */ |
e27454ee | 2110 | DECL_EXTERNAL (fndecl) = 1; |
2111 | TREE_PUBLIC (fndecl) = 1; | |
2112 | ||
1236e28b | 2113 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2114 | decl_attributes (&fndecl, attributes, 0); | |
2115 | ||
2116 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2117 | |
2118 | /* Set the context of this decl. */ | |
2119 | if (0 && sym->ns && sym->ns->proc_name) | |
2120 | { | |
2121 | /* TODO: Add external decls to the appropriate scope. */ | |
2122 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2123 | } | |
2124 | else | |
2125 | { | |
f888a3fb | 2126 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2127 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2128 | } | |
2129 | ||
4ee9c684 | 2130 | /* Set attributes for PURE functions. A call to PURE function in the |
2131 | Fortran 95 sense is both pure and without side effects in the C | |
2132 | sense. */ | |
bead0399 | 2133 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2134 | { |
4d4b9f0e | 2135 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2136 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2137 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2138 | parameters and don't use alternate returns (is this | |
2139 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2140 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2141 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2142 | } |
2143 | ||
6e27d773 | 2144 | /* Mark non-returning functions. */ |
2145 | if (sym->attr.noreturn) | |
2146 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2147 | ||
4ee9c684 | 2148 | sym->backend_decl = fndecl; |
2149 | ||
2150 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2151 | pushdecl_top_level (fndecl); | |
2152 | ||
15b28553 | 2153 | if (sym->formal_ns |
2154 | && sym->formal_ns->proc_name == sym | |
2155 | && sym->formal_ns->omp_declare_simd) | |
2156 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2157 | ||
4ee9c684 | 2158 | return fndecl; |
2159 | } | |
2160 | ||
2161 | ||
2162 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2163 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2164 | a master function with alternate entry points. */ | |
4ee9c684 | 2165 | |
1b716045 | 2166 | static void |
d896f9b3 | 2167 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2168 | { |
36b0a1b0 | 2169 | tree fndecl, type, attributes; |
4ee9c684 | 2170 | symbol_attribute attr; |
1b716045 | 2171 | tree result_decl; |
4ee9c684 | 2172 | gfc_formal_arglist *f; |
2173 | ||
76e207a9 | 2174 | bool module_procedure = sym->attr.module_procedure |
2175 | && sym->ns | |
2176 | && sym->ns->proc_name | |
2177 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2178 | ||
2179 | gcc_assert (!sym->attr.external || module_procedure); | |
4ee9c684 | 2180 | |
802532b9 | 2181 | if (sym->backend_decl) |
2182 | return; | |
2183 | ||
b31f705b | 2184 | /* Set the line and filename. sym->declared_at seems to point to the |
2185 | last statement for subroutines, but it'll do for now. */ | |
2186 | gfc_set_backend_locus (&sym->declared_at); | |
2187 | ||
4ee9c684 | 2188 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2189 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2190 | || DECL_FILE_SCOPE_P (current_function_decl) |
2191 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2192 | == NAMESPACE_DECL)); | |
4ee9c684 | 2193 | |
2194 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2195 | fndecl = build_decl (input_location, |
2196 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2197 | |
1236e28b | 2198 | attr = sym->attr; |
2199 | ||
e27454ee | 2200 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2201 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2202 | the opposite of declaring a function as static in C). */ |
e27454ee | 2203 | DECL_EXTERNAL (fndecl) = 0; |
2204 | ||
7d6b5754 | 2205 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2206 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2207 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2208 | && flag_module_private))) |
7d6b5754 | 2209 | sym->attr.access = ACCESS_PRIVATE; |
2210 | ||
e27454ee | 2211 | if (!current_function_decl |
c5cb468c | 2212 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2213 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2214 | || sym->attr.public_used)) | |
e27454ee | 2215 | TREE_PUBLIC (fndecl) = 1; |
2216 | ||
9e45357a | 2217 | if (sym->attr.referenced || sym->attr.entry_master) |
2218 | TREE_USED (fndecl) = 1; | |
2219 | ||
1236e28b | 2220 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2221 | decl_attributes (&fndecl, attributes, 0); | |
2222 | ||
4ee9c684 | 2223 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2224 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2225 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2226 | result_decl = NULL_TREE; |
2227 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2228 | if (attr.function) | |
2229 | { | |
2230 | if (gfc_return_by_reference (sym)) | |
2231 | type = void_type_node; | |
2232 | else | |
2233 | { | |
2234 | if (sym->result != sym) | |
2235 | result_decl = gfc_sym_identifier (sym->result); | |
2236 | ||
2237 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2238 | } | |
2239 | } | |
2240 | else | |
2241 | { | |
2242 | /* Look for alternate return placeholders. */ | |
2243 | int has_alternate_returns = 0; | |
6777213b | 2244 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2245 | { |
2246 | if (f->sym == NULL) | |
2247 | { | |
2248 | has_alternate_returns = 1; | |
2249 | break; | |
2250 | } | |
2251 | } | |
2252 | ||
2253 | if (has_alternate_returns) | |
2254 | type = integer_type_node; | |
2255 | else | |
2256 | type = void_type_node; | |
2257 | } | |
2258 | ||
e60a6f7b | 2259 | result_decl = build_decl (input_location, |
2260 | RESULT_DECL, result_decl, type); | |
540edea7 | 2261 | DECL_ARTIFICIAL (result_decl) = 1; |
2262 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2263 | DECL_CONTEXT (result_decl) = fndecl; |
2264 | DECL_RESULT (fndecl) = result_decl; | |
2265 | ||
2266 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2267 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2268 | |
4ee9c684 | 2269 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2270 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2271 | |
f888a3fb | 2272 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2273 | Fortran 95 sense is both pure and without side effects in the C |
2274 | sense. */ | |
bead0399 | 2275 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2276 | { |
be393645 | 2277 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2278 | including an alternate return. In that case it can also be |
231e961a | 2279 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2280 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2281 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2282 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2283 | } | |
2284 | ||
36b0a1b0 | 2285 | |
4ee9c684 | 2286 | /* Layout the function declaration and put it in the binding level |
2287 | of the current function. */ | |
d896f9b3 | 2288 | |
4c197fd0 | 2289 | if (global) |
d896f9b3 | 2290 | pushdecl_top_level (fndecl); |
2291 | else | |
2292 | pushdecl (fndecl); | |
1b716045 | 2293 | |
16a40513 | 2294 | /* Perform name mangling if this is a top level or module procedure. */ |
2295 | if (current_function_decl == NULL_TREE) | |
2296 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2297 | ||
1b716045 | 2298 | sym->backend_decl = fndecl; |
2299 | } | |
2300 | ||
2301 | ||
2302 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2303 | ||
2304 | static void | |
2305 | create_function_arglist (gfc_symbol * sym) | |
2306 | { | |
2307 | tree fndecl; | |
2308 | gfc_formal_arglist *f; | |
d4163395 | 2309 | tree typelist, hidden_typelist; |
2310 | tree arglist, hidden_arglist; | |
1b716045 | 2311 | tree type; |
2312 | tree parm; | |
2313 | ||
2314 | fndecl = sym->backend_decl; | |
2315 | ||
e4b2c26c | 2316 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2317 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2318 | arglist = NULL_TREE; |
d4163395 | 2319 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2320 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2321 | |
2322 | if (sym->attr.entry_master) | |
2323 | { | |
2324 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2325 | parm = build_decl (input_location, |
2326 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2327 | |
1b716045 | 2328 | DECL_CONTEXT (parm) = fndecl; |
2329 | DECL_ARG_TYPE (parm) = type; | |
2330 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2331 | gfc_finish_decl (parm); |
d95efb59 | 2332 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2333 | |
2334 | arglist = chainon (arglist, parm); | |
2335 | typelist = TREE_CHAIN (typelist); | |
2336 | } | |
2337 | ||
e4b2c26c | 2338 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2339 | { |
d4163395 | 2340 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2341 | |
e4b2c26c | 2342 | if (sym->ts.type == BT_CHARACTER) |
2343 | { | |
e4b2c26c | 2344 | /* Length of character result. */ |
d4163395 | 2345 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2346 | |
e60a6f7b | 2347 | length = build_decl (input_location, |
2348 | PARM_DECL, | |
e4b2c26c | 2349 | get_identifier (".__result"), |
d4163395 | 2350 | len_type); |
b345a09f | 2351 | if (POINTER_TYPE_P (len_type)) |
2352 | { | |
2353 | sym->ts.u.cl->passed_length = length; | |
2354 | TREE_USED (length) = 1; | |
2355 | } | |
2356 | else if (!sym->ts.u.cl->length) | |
e4b2c26c | 2357 | { |
eeebe20b | 2358 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2359 | TREE_USED (length) = 1; |
4ee9c684 | 2360 | } |
22d678e8 | 2361 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2362 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2363 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2364 | TREE_READONLY (length) = 1; |
b5b40b3f | 2365 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2366 | gfc_finish_decl (length); |
eeebe20b | 2367 | if (sym->ts.u.cl->backend_decl == NULL |
2368 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2369 | { |
2370 | gfc_symbol *arg; | |
2371 | tree backend_decl; | |
4ee9c684 | 2372 | |
eeebe20b | 2373 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2374 | { |
e60a6f7b | 2375 | tree len = build_decl (input_location, |
2376 | VAR_DECL, | |
d4163395 | 2377 | get_identifier ("..__result"), |
2378 | gfc_charlen_type_node); | |
2379 | DECL_ARTIFICIAL (len) = 1; | |
2380 | TREE_USED (len) = 1; | |
eeebe20b | 2381 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2382 | } |
4ee9c684 | 2383 | |
d4163395 | 2384 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2385 | arg = sym->result ? sym->result : sym; | |
2386 | backend_decl = arg->backend_decl; | |
2387 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2388 | type. */ | |
2389 | arg->backend_decl = NULL; | |
2390 | type = gfc_sym_type (arg); | |
2391 | arg->backend_decl = backend_decl; | |
2392 | type = build_reference_type (type); | |
2393 | } | |
2394 | } | |
4ee9c684 | 2395 | |
e60a6f7b | 2396 | parm = build_decl (input_location, |
2397 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2398 | |
d4163395 | 2399 | DECL_CONTEXT (parm) = fndecl; |
2400 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2401 | TREE_READONLY (parm) = 1; | |
2402 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2403 | gfc_finish_decl (parm); |
4ee9c684 | 2404 | |
d4163395 | 2405 | arglist = chainon (arglist, parm); |
2406 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2407 | |
d4163395 | 2408 | if (sym->ts.type == BT_CHARACTER) |
2409 | { | |
2410 | gfc_allocate_lang_decl (parm); | |
2411 | arglist = chainon (arglist, length); | |
e4b2c26c | 2412 | typelist = TREE_CHAIN (typelist); |
2413 | } | |
2414 | } | |
4ee9c684 | 2415 | |
d4163395 | 2416 | hidden_typelist = typelist; |
6777213b | 2417 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2418 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2419 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2420 | ||
6777213b | 2421 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2422 | { |
2423 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2424 | |
e4b2c26c | 2425 | /* Ignore alternate returns. */ |
2426 | if (f->sym == NULL) | |
2427 | continue; | |
4ee9c684 | 2428 | |
e4b2c26c | 2429 | type = TREE_VALUE (typelist); |
4ee9c684 | 2430 | |
296db1d1 | 2431 | if (f->sym->ts.type == BT_CHARACTER |
2432 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2433 | { |
2434 | tree len_type = TREE_VALUE (hidden_typelist); | |
2435 | tree length = NULL_TREE; | |
617125a6 | 2436 | if (!f->sym->ts.deferred) |
2437 | gcc_assert (len_type == gfc_charlen_type_node); | |
2438 | else | |
2439 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2440 | |
2441 | strcpy (&name[1], f->sym->name); | |
2442 | name[0] = '_'; | |
e60a6f7b | 2443 | length = build_decl (input_location, |
2444 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2445 | |
d4163395 | 2446 | hidden_arglist = chainon (hidden_arglist, length); |
2447 | DECL_CONTEXT (length) = fndecl; | |
2448 | DECL_ARTIFICIAL (length) = 1; | |
2449 | DECL_ARG_TYPE (length) = len_type; | |
2450 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2451 | gfc_finish_decl (length); |
4ee9c684 | 2452 | |
a4abf8a0 | 2453 | /* Remember the passed value. */ |
a90fe829 | 2454 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2455 | { |
2456 | /* This can happen if the same type is used for multiple | |
2457 | arguments. We need to copy cl as otherwise | |
2458 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2459 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2460 | } |
eeebe20b | 2461 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2462 | |
d4163395 | 2463 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2464 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2465 | { |
d4163395 | 2466 | TREE_USED (length) = 1; |
eeebe20b | 2467 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2468 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2469 | } |
2470 | ||
2471 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2472 | ||
eeebe20b | 2473 | if (f->sym->ts.u.cl->backend_decl == NULL |
2474 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2475 | { |
ddcfeaf1 | 2476 | if (POINTER_TYPE_P (len_type)) |
2477 | f->sym->ts.u.cl->backend_decl = | |
2478 | build_fold_indirect_ref_loc (input_location, length); | |
2479 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2480 | gfc_create_string_length (f->sym); |
2481 | ||
2482 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2483 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2484 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2485 | else | |
2486 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2487 | } |
4ee9c684 | 2488 | } |
532c2d79 | 2489 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2490 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2491 | Thus, we will use a hidden argument in that case. */ |
2492 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2493 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
d7cd448a | 2494 | && !gfc_bt_struct (f->sym->ts.type)) |
532c2d79 | 2495 | { |
2496 | tree tmp; | |
2497 | strcpy (&name[1], f->sym->name); | |
2498 | name[0] = '_'; | |
2499 | tmp = build_decl (input_location, | |
2500 | PARM_DECL, get_identifier (name), | |
2501 | boolean_type_node); | |
2502 | ||
2503 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2504 | DECL_CONTEXT (tmp) = fndecl; | |
2505 | DECL_ARTIFICIAL (tmp) = 1; | |
2506 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2507 | TREE_READONLY (tmp) = 1; | |
2508 | gfc_finish_decl (tmp); | |
2509 | } | |
4ee9c684 | 2510 | |
d4163395 | 2511 | /* For non-constant length array arguments, make sure they use |
2512 | a different type node from TYPE_ARG_TYPES type. */ | |
2513 | if (f->sym->attr.dimension | |
2514 | && type == TREE_VALUE (typelist) | |
2515 | && TREE_CODE (type) == POINTER_TYPE | |
2516 | && GFC_ARRAY_TYPE_P (type) | |
2517 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2518 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2519 | { | |
2520 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2521 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2522 | else | |
2523 | type = gfc_sym_type (f->sym); | |
2524 | } | |
2525 | ||
cad0ddcf | 2526 | if (f->sym->attr.proc_pointer) |
2527 | type = build_pointer_type (type); | |
2528 | ||
2364aa60 | 2529 | if (f->sym->attr.volatile_) |
2530 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2531 | ||
69b1505f | 2532 | /* Build the argument declaration. */ |
e60a6f7b | 2533 | parm = build_decl (input_location, |
2534 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2535 | |
2364aa60 | 2536 | if (f->sym->attr.volatile_) |
2537 | { | |
2538 | TREE_THIS_VOLATILE (parm) = 1; | |
2539 | TREE_SIDE_EFFECTS (parm) = 1; | |
2540 | } | |
2541 | ||
d4163395 | 2542 | /* Fill in arg stuff. */ |
2543 | DECL_CONTEXT (parm) = fndecl; | |
2544 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2545 | /* All implementation args except for VALUE are read-only. */ |
2546 | if (!f->sym->attr.value) | |
2547 | TREE_READONLY (parm) = 1; | |
98923a84 | 2548 | if (POINTER_TYPE_P (type) |
2549 | && (!f->sym->attr.proc_pointer | |
2550 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2551 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2552 | |
b9c7fce7 | 2553 | gfc_finish_decl (parm); |
cf5f881f | 2554 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2555 | |
2556 | f->sym->backend_decl = parm; | |
2557 | ||
7dce33fe | 2558 | /* Coarrays which are descriptorless or assumed-shape pass with |
2559 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2560 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2561 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2562 | && !f->sym->attr.allocatable) | |
2563 | || (f->sym->ts.type == BT_CLASS | |
2564 | && CLASS_DATA (f->sym)->attr.codimension | |
2565 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2566 | { |
2567 | tree caf_type; | |
2568 | tree token; | |
2569 | tree offset; | |
2570 | ||
2571 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2572 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2573 | caf_type = f->sym->ts.type == BT_CLASS |
2574 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2575 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2576 | |
85c94a64 | 2577 | token = build_decl (input_location, PARM_DECL, |
2578 | create_tmp_var_name ("caf_token"), | |
2579 | build_qualified_type (pvoid_type_node, | |
2580 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2581 | if ((f->sym->ts.type != BT_CLASS |
2582 | && f->sym->as->type != AS_DEFERRED) | |
2583 | || (f->sym->ts.type == BT_CLASS | |
2584 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2585 | { |
2586 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2587 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2588 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2589 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2590 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2591 | } | |
2592 | else | |
2593 | { | |
2594 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2595 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2596 | } | |
a90fe829 | 2597 | |
85c94a64 | 2598 | DECL_CONTEXT (token) = fndecl; |
2599 | DECL_ARTIFICIAL (token) = 1; | |
2600 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2601 | TREE_READONLY (token) = 1; | |
2602 | hidden_arglist = chainon (hidden_arglist, token); | |
2603 | gfc_finish_decl (token); | |
2604 | ||
85c94a64 | 2605 | offset = build_decl (input_location, PARM_DECL, |
2606 | create_tmp_var_name ("caf_offset"), | |
2607 | gfc_array_index_type); | |
2608 | ||
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 (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2615 | == NULL_TREE); | |
2616 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2617 | } | |
2618 | else | |
2619 | { | |
2620 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2621 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2622 | } | |
85c94a64 | 2623 | DECL_CONTEXT (offset) = fndecl; |
2624 | DECL_ARTIFICIAL (offset) = 1; | |
2625 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2626 | TREE_READONLY (offset) = 1; | |
2627 | hidden_arglist = chainon (hidden_arglist, offset); | |
2628 | gfc_finish_decl (offset); | |
2629 | } | |
2630 | ||
d4163395 | 2631 | arglist = chainon (arglist, parm); |
e4b2c26c | 2632 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2633 | } |
e4b2c26c | 2634 | |
465e4a95 | 2635 | /* Add the hidden string length parameters, unless the procedure |
2636 | is bind(C). */ | |
2637 | if (!sym->attr.is_bind_c) | |
2638 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2639 | |
ebe27ea2 | 2640 | gcc_assert (hidden_typelist == NULL_TREE |
2641 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2642 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2643 | } |
e4b2c26c | 2644 | |
1b716045 | 2645 | /* Do the setup necessary before generating the body of a function. */ |
2646 | ||
2647 | static void | |
2648 | trans_function_start (gfc_symbol * sym) | |
2649 | { | |
2650 | tree fndecl; | |
2651 | ||
2652 | fndecl = sym->backend_decl; | |
2653 | ||
f888a3fb | 2654 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2655 | current_function_decl = fndecl; |
2656 | ||
f888a3fb | 2657 | /* Let the world know what we're about to do. */ |
1b716045 | 2658 | announce_function (fndecl); |
2659 | ||
16a40513 | 2660 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2661 | { |
f888a3fb | 2662 | /* Create RTL for function declaration. */ |
1b716045 | 2663 | rest_of_decl_compilation (fndecl, 1, 0); |
2664 | } | |
2665 | ||
f888a3fb | 2666 | /* Create RTL for function definition. */ |
1b716045 | 2667 | make_decl_rtl (fndecl); |
2668 | ||
00cf115c | 2669 | allocate_struct_function (fndecl, false); |
1b716045 | 2670 | |
f888a3fb | 2671 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2672 | pushlevel (); |
1b716045 | 2673 | } |
2674 | ||
2675 | /* Create thunks for alternate entry points. */ | |
2676 | ||
2677 | static void | |
d896f9b3 | 2678 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2679 | { |
2680 | gfc_formal_arglist *formal; | |
2681 | gfc_formal_arglist *thunk_formal; | |
2682 | gfc_entry_list *el; | |
2683 | gfc_symbol *thunk_sym; | |
2684 | stmtblock_t body; | |
2685 | tree thunk_fndecl; | |
1b716045 | 2686 | tree tmp; |
b31f705b | 2687 | locus old_loc; |
1b716045 | 2688 | |
2689 | /* This should always be a toplevel function. */ | |
22d678e8 | 2690 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2691 | |
4671339c | 2692 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2693 | for (el = ns->entries; el; el = el->next) |
2694 | { | |
f1f41a6c | 2695 | vec<tree, va_gc> *args = NULL; |
2696 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2697 | |
1b716045 | 2698 | thunk_sym = el->sym; |
a90fe829 | 2699 | |
d896f9b3 | 2700 | build_function_decl (thunk_sym, global); |
1b716045 | 2701 | create_function_arglist (thunk_sym); |
2702 | ||
2703 | trans_function_start (thunk_sym); | |
2704 | ||
2705 | thunk_fndecl = thunk_sym->backend_decl; | |
2706 | ||
e5004242 | 2707 | gfc_init_block (&body); |
1b716045 | 2708 | |
f888a3fb | 2709 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2710 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2711 | vec_safe_push (args, tmp); |
1b716045 | 2712 | |
c6871095 | 2713 | if (thunk_sym->attr.function) |
2714 | { | |
2715 | if (gfc_return_by_reference (ns->proc_name)) | |
2716 | { | |
2717 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2718 | vec_safe_push (args, ref); |
c6871095 | 2719 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2720 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2721 | } |
2722 | } | |
2723 | ||
6777213b | 2724 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2725 | formal = formal->next) | |
1b716045 | 2726 | { |
c6871095 | 2727 | /* Ignore alternate returns. */ |
2728 | if (formal->sym == NULL) | |
2729 | continue; | |
2730 | ||
1b716045 | 2731 | /* We don't have a clever way of identifying arguments, so resort to |
2732 | a brute-force search. */ | |
6777213b | 2733 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2734 | thunk_formal; |
2735 | thunk_formal = thunk_formal->next) | |
2736 | { | |
2737 | if (thunk_formal->sym == formal->sym) | |
2738 | break; | |
2739 | } | |
2740 | ||
2741 | if (thunk_formal) | |
2742 | { | |
2743 | /* Pass the argument. */ | |
d95efb59 | 2744 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2745 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2746 | if (formal->sym->ts.type == BT_CHARACTER) |
2747 | { | |
eeebe20b | 2748 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2749 | vec_safe_push (string_args, tmp); |
1b716045 | 2750 | } |
2751 | } | |
2752 | else | |
2753 | { | |
2754 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2755 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2756 | if (formal->sym->ts.type == BT_CHARACTER) |
2757 | { | |
7d3075f6 | 2758 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2759 | vec_safe_push (string_args, tmp); |
1b716045 | 2760 | } |
2761 | } | |
2762 | } | |
2763 | ||
2764 | /* Call the master function. */ | |
f1f41a6c | 2765 | vec_safe_splice (args, string_args); |
1b716045 | 2766 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2767 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2768 | if (ns->proc_name->attr.mixed_entry_master) |
2769 | { | |
2770 | tree union_decl, field; | |
2771 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2772 | ||
e60a6f7b | 2773 | union_decl = build_decl (input_location, |
2774 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2775 | TREE_TYPE (master_type)); |
2776 | DECL_ARTIFICIAL (union_decl) = 1; | |
2777 | DECL_EXTERNAL (union_decl) = 0; | |
2778 | TREE_PUBLIC (union_decl) = 0; | |
2779 | TREE_USED (union_decl) = 1; | |
2780 | layout_decl (union_decl, 0); | |
2781 | pushdecl (union_decl); | |
2782 | ||
2783 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2784 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2785 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2786 | gfc_add_expr_to_block (&body, tmp); |
2787 | ||
2788 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2789 | field; field = DECL_CHAIN (field)) |
c6871095 | 2790 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2791 | thunk_sym->result->name) == 0) | |
2792 | break; | |
2793 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2794 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2795 | TREE_TYPE (field), union_decl, field, | |
2796 | NULL_TREE); | |
a90fe829 | 2797 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2798 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2799 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2800 | tmp = build1_v (RETURN_EXPR, tmp); |
2801 | } | |
2802 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2803 | != void_type_node) | |
2804 | { | |
fd779e1d | 2805 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2806 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2807 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2808 | tmp = build1_v (RETURN_EXPR, tmp); |
2809 | } | |
1b716045 | 2810 | gfc_add_expr_to_block (&body, tmp); |
2811 | ||
2812 | /* Finish off this function and send it for code generation. */ | |
2813 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2814 | tmp = getdecls (); |
cde2be84 | 2815 | poplevel (1, 1); |
1b716045 | 2816 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2817 | DECL_SAVED_TREE (thunk_fndecl) |
2818 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2819 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2820 | |
2821 | /* Output the GENERIC tree. */ | |
2822 | dump_function (TDI_original, thunk_fndecl); | |
2823 | ||
2824 | /* Store the end of the function, so that we get good line number | |
2825 | info for the epilogue. */ | |
2826 | cfun->function_end_locus = input_location; | |
2827 | ||
2828 | /* We're leaving the context of this function, so zap cfun. | |
2829 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2830 | tree_rest_of_compilation. */ | |
87d4aa85 | 2831 | set_cfun (NULL); |
1b716045 | 2832 | |
2833 | current_function_decl = NULL_TREE; | |
2834 | ||
35ee1c66 | 2835 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2836 | |
2837 | /* We share the symbols in the formal argument list with other entry | |
2838 | points and the master function. Clear them so that they are | |
2839 | recreated for each function. */ | |
6777213b | 2840 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2841 | formal = formal->next) | |
c6871095 | 2842 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2843 | { | |
2844 | formal->sym->backend_decl = NULL_TREE; | |
2845 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2846 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2847 | } |
2848 | ||
2849 | if (thunk_sym->attr.function) | |
1b716045 | 2850 | { |
c6871095 | 2851 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2852 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2853 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2854 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2855 | } |
2856 | } | |
b31f705b | 2857 | |
4671339c | 2858 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2859 | } |
2860 | ||
2861 | ||
2862 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2863 | points. If global is true, generate the function in the global binding |
2864 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2865 | |
2866 | void | |
d896f9b3 | 2867 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2868 | { |
2869 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2870 | build_function_decl (ns->proc_name, global); |
1b716045 | 2871 | |
f888a3fb | 2872 | /* Compile the entry thunks. */ |
1b716045 | 2873 | if (ns->entries) |
d896f9b3 | 2874 | build_entry_thunks (ns, global); |
1b716045 | 2875 | |
2876 | /* Now create the read argument list. */ | |
2877 | create_function_arglist (ns->proc_name); | |
15b28553 | 2878 | |
2879 | if (ns->omp_declare_simd) | |
2880 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2881 | } |
2882 | ||
c750cc52 | 2883 | /* Return the decl used to hold the function return value. If |
3350e716 | 2884 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2885 | |
2886 | tree | |
c750cc52 | 2887 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2888 | { |
c750cc52 | 2889 | tree decl; |
2890 | tree length; | |
2891 | tree this_fake_result_decl; | |
2892 | tree this_function_decl; | |
4ee9c684 | 2893 | |
2894 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2895 | ||
c750cc52 | 2896 | if (parent_flag) |
2897 | { | |
2898 | this_fake_result_decl = parent_fake_result_decl; | |
2899 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2900 | } | |
2901 | else | |
2902 | { | |
2903 | this_fake_result_decl = current_fake_result_decl; | |
2904 | this_function_decl = current_function_decl; | |
2905 | } | |
2906 | ||
c6871095 | 2907 | if (sym |
c750cc52 | 2908 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2909 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2910 | && sym != sym->ns->proc_name) |
2911 | { | |
e228ac8a | 2912 | tree t = NULL, var; |
c750cc52 | 2913 | if (this_fake_result_decl != NULL) |
2914 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2915 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2916 | break; | |
2917 | if (t) | |
2918 | return TREE_VALUE (t); | |
c750cc52 | 2919 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2920 | ||
2921 | if (parent_flag) | |
2922 | this_fake_result_decl = parent_fake_result_decl; | |
2923 | else | |
2924 | this_fake_result_decl = current_fake_result_decl; | |
2925 | ||
e228ac8a | 2926 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
2927 | { | |
2928 | tree field; | |
c6871095 | 2929 | |
e228ac8a | 2930 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); |
2931 | field; field = DECL_CHAIN (field)) | |
2932 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), | |
2933 | sym->name) == 0) | |
2934 | break; | |
c6871095 | 2935 | |
e228ac8a | 2936 | gcc_assert (field != NULL_TREE); |
2937 | decl = fold_build3_loc (input_location, COMPONENT_REF, | |
2938 | TREE_TYPE (field), decl, field, NULL_TREE); | |
2939 | } | |
c750cc52 | 2940 | |
2941 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2942 | if (parent_flag) | |
2943 | gfc_add_decl_to_parent_function (var); | |
2944 | else | |
2945 | gfc_add_decl_to_function (var); | |
2946 | ||
d4163395 | 2947 | SET_DECL_VALUE_EXPR (var, decl); |
2948 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2949 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2950 | |
2951 | TREE_CHAIN (this_fake_result_decl) | |
2952 | = tree_cons (get_identifier (sym->name), var, | |
2953 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2954 | return var; |
c6871095 | 2955 | } |
2956 | ||
c750cc52 | 2957 | if (this_fake_result_decl != NULL_TREE) |
2958 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2959 | |
2960 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2961 | sym is NULL. */ | |
2962 | if (!sym) | |
2963 | return NULL_TREE; | |
2964 | ||
d4163395 | 2965 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2966 | { |
eeebe20b | 2967 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2968 | length = gfc_create_string_length (sym); |
2969 | else | |
eeebe20b | 2970 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 2971 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
99042714 | 2972 | gfc_add_decl_to_function (length); |
4ee9c684 | 2973 | } |
2974 | ||
2975 | if (gfc_return_by_reference (sym)) | |
2976 | { | |
c750cc52 | 2977 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2978 | |
c750cc52 | 2979 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2980 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2981 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2982 | |
2983 | TREE_USED (decl) = 1; | |
2984 | if (sym->as) | |
2985 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2986 | } | |
2987 | else | |
2988 | { | |
2989 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2990 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2991 | |
3350e716 | 2992 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2993 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2994 | VAR_DECL, get_identifier (name), |
3350e716 | 2995 | gfc_sym_type (sym)); |
2996 | else | |
1e71b314 | 2997 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2998 | VAR_DECL, get_identifier (name), |
3350e716 | 2999 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 3000 | DECL_ARTIFICIAL (decl) = 1; |
3001 | DECL_EXTERNAL (decl) = 0; | |
3002 | TREE_PUBLIC (decl) = 0; | |
3003 | TREE_USED (decl) = 1; | |
764f1175 | 3004 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 3005 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 3006 | |
3007 | layout_decl (decl, 0); | |
cf5f881f | 3008 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 3009 | |
c750cc52 | 3010 | if (parent_flag) |
3011 | gfc_add_decl_to_parent_function (decl); | |
3012 | else | |
3013 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 3014 | } |
3015 | ||
c750cc52 | 3016 | if (parent_flag) |
3017 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3018 | else | |
3019 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 3020 | |
3021 | return decl; | |
3022 | } | |
3023 | ||
3024 | ||
3025 | /* Builds a function decl. The remaining parameters are the types of the | |
3026 | function arguments. Negative nargs indicates a varargs function. */ | |
3027 | ||
8ce86007 | 3028 | static tree |
3029 | build_library_function_decl_1 (tree name, const char *spec, | |
3030 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 3031 | { |
f1f41a6c | 3032 | vec<tree, va_gc> *arglist; |
4ee9c684 | 3033 | tree fntype; |
3034 | tree fndecl; | |
4ee9c684 | 3035 | int n; |
3036 | ||
3037 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 3038 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 3039 | |
4ee9c684 | 3040 | /* Create a list of the argument types. */ |
f1f41a6c | 3041 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 3042 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 3043 | { |
5edc3af9 | 3044 | tree argtype = va_arg (p, tree); |
f1f41a6c | 3045 | arglist->quick_push (argtype); |
4ee9c684 | 3046 | } |
3047 | ||
3048 | /* Build the function type and decl. */ | |
5edc3af9 | 3049 | if (nargs >= 0) |
3050 | fntype = build_function_type_vec (rettype, arglist); | |
3051 | else | |
3052 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 3053 | if (spec) |
3054 | { | |
3055 | tree attr_args = build_tree_list (NULL_TREE, | |
3056 | build_string (strlen (spec), spec)); | |
3057 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3058 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3059 | fntype = build_type_attribute_variant (fntype, attrs); | |
3060 | } | |
e60a6f7b | 3061 | fndecl = build_decl (input_location, |
3062 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 3063 | |
3064 | /* Mark this decl as external. */ | |
3065 | DECL_EXTERNAL (fndecl) = 1; | |
3066 | TREE_PUBLIC (fndecl) = 1; | |
3067 | ||
4ee9c684 | 3068 | pushdecl (fndecl); |
3069 | ||
b2c4af5e | 3070 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 3071 | |
3072 | return fndecl; | |
3073 | } | |
3074 | ||
8ce86007 | 3075 | /* Builds a function decl. The remaining parameters are the types of the |
3076 | function arguments. Negative nargs indicates a varargs function. */ | |
3077 | ||
3078 | tree | |
3079 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3080 | { | |
3081 | tree ret; | |
3082 | va_list args; | |
3083 | va_start (args, nargs); | |
3084 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3085 | va_end (args); | |
3086 | return ret; | |
3087 | } | |
3088 | ||
3089 | /* Builds a function decl. The remaining parameters are the types of the | |
3090 | function arguments. Negative nargs indicates a varargs function. | |
3091 | The SPEC parameter specifies the function argument and return type | |
3092 | specification according to the fnspec function type attribute. */ | |
3093 | ||
4bf69bc3 | 3094 | tree |
8ce86007 | 3095 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3096 | tree rettype, int nargs, ...) | |
3097 | { | |
3098 | tree ret; | |
3099 | va_list args; | |
3100 | va_start (args, nargs); | |
3101 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3102 | va_end (args); | |
3103 | return ret; | |
3104 | } | |
3105 | ||
4ee9c684 | 3106 | static void |
3107 | gfc_build_intrinsic_function_decls (void) | |
3108 | { | |
90ba9145 | 3109 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 3110 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3111 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3112 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3113 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3114 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3115 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3116 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3117 | |
4ee9c684 | 3118 | /* String functions. */ |
241ecdc7 | 3119 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3120 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3121 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3122 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3123 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3124 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3125 | |
3126 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3127 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3128 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3129 | gfc_charlen_type_node, pchar1_type_node, | |
3130 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3131 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3132 | |
3133 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3134 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3135 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3136 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3137 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3138 | |
3139 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3140 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3141 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3142 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3143 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3144 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3145 | |
3146 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3147 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3148 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3149 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3150 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3151 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3152 | |
3153 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3154 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3155 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3156 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3157 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3158 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3159 | |
3160 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3161 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3162 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3163 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3164 | pchar1_type_node); | |
3165 | ||
3166 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3167 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3168 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3169 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3170 | integer_type_node); | |
3171 | ||
3172 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3173 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3174 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3175 | pchar1_type_node); | |
bc351485 | 3176 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3177 | |
3178 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3179 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3180 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3181 | pchar1_type_node); | |
bc351485 | 3182 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3183 | |
3184 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3185 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3186 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3187 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3188 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3189 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3190 | |
3191 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3192 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3193 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3194 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3195 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3196 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3197 | |
3198 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3199 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3200 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3201 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3202 | pchar4_type_node); | |
bc351485 | 3203 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3204 | |
3205 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3206 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3207 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3208 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3209 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3210 | |
3211 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3212 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3213 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3214 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3215 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3216 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3217 | |
3218 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3219 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3220 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3221 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3222 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3223 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3224 | |
3225 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3226 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3227 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3228 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3229 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3230 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3231 | |
3232 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3233 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3234 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3235 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3236 | pchar4_type_node); | |
3237 | ||
3238 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3239 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3240 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3241 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3242 | integer_type_node); | |
3243 | ||
3244 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3245 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3246 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3247 | pchar4_type_node); | |
bc351485 | 3248 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3249 | |
3250 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3251 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3252 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3253 | pchar4_type_node); | |
bc351485 | 3254 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3255 | |
3256 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3257 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3258 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3259 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3260 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3261 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3262 | |
3263 | ||
3264 | /* Conversion between character kinds. */ | |
3265 | ||
241ecdc7 | 3266 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3267 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3268 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3269 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3270 | |
241ecdc7 | 3271 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3272 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3273 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3274 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3275 | |
40b806de | 3276 | /* Misc. functions. */ |
5fcc6ec2 | 3277 | |
241ecdc7 | 3278 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3279 | get_identifier (PREFIX("ttynam")), ".W", | |
3280 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3281 | integer_type_node); | |
3282 | ||
3283 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3284 | get_identifier (PREFIX("fdate")), ".W", | |
3285 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3286 | ||
3287 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3288 | get_identifier (PREFIX("ctime")), ".W", | |
3289 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3290 | gfc_int8_type_node); | |
3291 | ||
0ecc062b | 3292 | gfor_fndecl_random_init = gfc_build_library_function_decl ( |
3293 | get_identifier (PREFIX("random_init")), | |
3294 | void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node, | |
3295 | gfc_int4_type_node); | |
3296 | ||
241ecdc7 | 3297 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( |
3298 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3299 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3300 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3301 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3302 | |
3303 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3304 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3305 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3306 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3307 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3308 | |
3309 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3310 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3311 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3312 | pvoid_type_node); | |
537824d1 | 3313 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3314 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3315 | |
72ce5390 | 3316 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3317 | get_identifier (PREFIX("system_clock_4")), | |
3318 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3319 | gfc_pint4_type_node); | |
3320 | ||
3321 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3322 | get_identifier (PREFIX("system_clock_8")), | |
3323 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3324 | gfc_pint8_type_node); | |
3325 | ||
4ee9c684 | 3326 | /* Power functions. */ |
76834664 | 3327 | { |
920e54ef | 3328 | tree ctype, rtype, itype, jtype; |
3329 | int rkind, ikind, jkind; | |
3330 | #define NIKINDS 3 | |
3331 | #define NRKINDS 4 | |
3332 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3333 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3334 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3335 | ||
3336 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3337 | { |
920e54ef | 3338 | itype = gfc_get_int_type (ikinds[ikind]); |
3339 | ||
3340 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3341 | { | |
3342 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3343 | if (itype && jtype) | |
3344 | { | |
6d3cbc0c | 3345 | sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind], |
920e54ef | 3346 | ikinds[jkind]); |
3347 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3348 | gfc_build_library_function_decl (get_identifier (name), | |
3349 | jtype, 2, jtype, itype); | |
2177d98b | 3350 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3351 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3352 | } |
3353 | } | |
3354 | ||
3355 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3356 | { |
920e54ef | 3357 | rtype = gfc_get_real_type (rkinds[rkind]); |
3358 | if (rtype && itype) | |
3359 | { | |
6d3cbc0c | 3360 | sprintf (name, PREFIX("pow_r%d_i%d"), rkinds[rkind], |
920e54ef | 3361 | ikinds[ikind]); |
3362 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3363 | gfc_build_library_function_decl (get_identifier (name), | |
3364 | rtype, 2, rtype, itype); | |
2177d98b | 3365 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3366 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3367 | } |
3368 | ||
3369 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3370 | if (ctype && itype) | |
3371 | { | |
6d3cbc0c | 3372 | sprintf (name, PREFIX("pow_c%d_i%d"), rkinds[rkind], |
920e54ef | 3373 | ikinds[ikind]); |
3374 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3375 | gfc_build_library_function_decl (get_identifier (name), | |
3376 | ctype, 2,ctype, itype); | |
2177d98b | 3377 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3378 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3379 | } |
76834664 | 3380 | } |
3381 | } | |
920e54ef | 3382 | #undef NIKINDS |
3383 | #undef NRKINDS | |
76834664 | 3384 | } |
3385 | ||
241ecdc7 | 3386 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3387 | get_identifier (PREFIX("ishftc4")), | |
3388 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3389 | gfc_int4_type_node); | |
bc351485 | 3390 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3391 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3392 | |
241ecdc7 | 3393 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3394 | get_identifier (PREFIX("ishftc8")), | |
3395 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3396 | gfc_int4_type_node); | |
bc351485 | 3397 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3398 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3399 | |
920e54ef | 3400 | if (gfc_int16_type_node) |
bc351485 | 3401 | { |
3402 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3403 | get_identifier (PREFIX("ishftc16")), |
3404 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3405 | gfc_int4_type_node); | |
bc351485 | 3406 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3407 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3408 | } | |
920e54ef | 3409 | |
4e8e57b0 | 3410 | /* BLAS functions. */ |
3411 | { | |
36c921b9 | 3412 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3413 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3414 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3415 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3416 | tree pz = build_pointer_type | |
3417 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3418 | ||
3419 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3420 | (get_identifier | |
829d7a08 | 3421 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3422 | void_type_node, 15, pchar_type_node, |
3423 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3424 | ps, pint, ps, ps, pint, integer_type_node, |
3425 | integer_type_node); | |
4e8e57b0 | 3426 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3427 | (get_identifier | |
829d7a08 | 3428 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3429 | void_type_node, 15, pchar_type_node, |
3430 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3431 | pd, pint, pd, pd, pint, integer_type_node, |
3432 | integer_type_node); | |
4e8e57b0 | 3433 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3434 | (get_identifier | |
829d7a08 | 3435 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3436 | void_type_node, 15, pchar_type_node, |
3437 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3438 | pc, pint, pc, pc, pint, integer_type_node, |
3439 | integer_type_node); | |
4e8e57b0 | 3440 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3441 | (get_identifier | |
829d7a08 | 3442 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3443 | void_type_node, 15, pchar_type_node, |
3444 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3445 | pz, pint, pz, pz, pint, integer_type_node, |
3446 | integer_type_node); | |
4e8e57b0 | 3447 | } |
3448 | ||
4ee9c684 | 3449 | /* Other functions. */ |
241ecdc7 | 3450 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3451 | get_identifier (PREFIX("size0")), ".R", | |
3452 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3453 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3454 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3455 | |
3456 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3457 | get_identifier (PREFIX("size1")), ".R", | |
3458 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3459 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3460 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3461 | |
3462 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3463 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3464 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
92c9ff97 | 3465 | |
3466 | gfor_fndecl_kill_sub = gfc_build_library_function_decl ( | |
3467 | get_identifier (PREFIX ("kill_sub")), void_type_node, | |
3468 | 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node); | |
3469 | ||
3470 | gfor_fndecl_kill = gfc_build_library_function_decl ( | |
3471 | get_identifier (PREFIX ("kill")), gfc_int4_type_node, | |
3472 | 2, gfc_int4_type_node, gfc_int4_type_node); | |
4ee9c684 | 3473 | } |
3474 | ||
3475 | ||
3476 | /* Make prototypes for runtime library functions. */ | |
3477 | ||
3478 | void | |
3479 | gfc_build_builtin_function_decls (void) | |
3480 | { | |
da8fd78f | 3481 | tree gfc_int8_type_node = gfc_get_int_type (8); |
4ee9c684 | 3482 | |
241ecdc7 | 3483 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3484 | get_identifier (PREFIX("stop_numeric")), | |
dbd7773a | 3485 | void_type_node, 2, integer_type_node, boolean_type_node); |
070cc790 | 3486 | /* STOP doesn't return. */ |
98ccec97 | 3487 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3488 | ||
241ecdc7 | 3489 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3490 | get_identifier (PREFIX("stop_string")), ".R.", | |
dbd7773a | 3491 | void_type_node, 3, pchar_type_node, size_type_node, |
3492 | boolean_type_node); | |
070cc790 | 3493 | /* STOP doesn't return. */ |
241ecdc7 | 3494 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3495 | |
241ecdc7 | 3496 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3497 | get_identifier (PREFIX("error_stop_numeric")), | |
dbd7773a | 3498 | void_type_node, 2, integer_type_node, boolean_type_node); |
070cc790 | 3499 | /* ERROR STOP doesn't return. */ |
3500 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3501 | ||
241ecdc7 | 3502 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3503 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
dbd7773a | 3504 | void_type_node, 3, pchar_type_node, size_type_node, |
3505 | boolean_type_node); | |
c6cd3066 | 3506 | /* ERROR STOP doesn't return. */ |
3507 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3508 | ||
241ecdc7 | 3509 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3510 | get_identifier (PREFIX("pause_numeric")), | |
da8fd78f | 3511 | void_type_node, 1, gfc_int8_type_node); |
070cc790 | 3512 | |
241ecdc7 | 3513 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3514 | get_identifier (PREFIX("pause_string")), ".R.", | |
da8fd78f | 3515 | void_type_node, 2, pchar_type_node, size_type_node); |
4ee9c684 | 3516 | |
241ecdc7 | 3517 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3518 | get_identifier (PREFIX("runtime_error")), ".R", | |
3519 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3520 | /* The runtime_error function does not return. */ |
3521 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3522 | |
241ecdc7 | 3523 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3524 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3525 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3526 | /* The runtime_error_at function does not return. */ |
3527 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3528 | |
241ecdc7 | 3529 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3530 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3531 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3532 | ||
3533 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3534 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3535 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3536 | pchar_type_node); | |
3537 | ||
3538 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3539 | get_identifier (PREFIX("os_error")), ".R", | |
3540 | void_type_node, 1, pchar_type_node); | |
9915365e | 3541 | /* The runtime_error function does not return. */ |
3542 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3543 | ||
241ecdc7 | 3544 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3545 | get_identifier (PREFIX("set_args")), | |
3546 | void_type_node, 2, integer_type_node, | |
3547 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3548 | |
241ecdc7 | 3549 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3550 | get_identifier (PREFIX("set_fpe")), | |
3551 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3552 | |
d566c3e0 | 3553 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3554 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3555 | void_type_node, 1, pvoid_type_node); | |
3556 | ||
3557 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3558 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3559 | void_type_node, 1, pvoid_type_node); | |
3560 | ||
56c7c2d7 | 3561 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3562 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3563 | get_identifier (PREFIX("set_options")), "..R", | |
3564 | void_type_node, 2, integer_type_node, | |
3565 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3566 | |
241ecdc7 | 3567 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3568 | get_identifier (PREFIX("set_convert")), | |
3569 | void_type_node, 1, integer_type_node); | |
15774a8b | 3570 | |
241ecdc7 | 3571 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3572 | get_identifier (PREFIX("set_record_marker")), | |
3573 | void_type_node, 1, integer_type_node); | |
f23886ab | 3574 | |
241ecdc7 | 3575 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3576 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3577 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3578 | |
8ce86007 | 3579 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3580 | get_identifier (PREFIX("internal_pack")), ".r", |
3581 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3582 | |
8ce86007 | 3583 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3584 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3585 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3586 | ||
3587 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3588 | get_identifier (PREFIX("associated")), ".RR", | |
3589 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3590 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3591 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3592 | |
70b5944a | 3593 | /* Coarray library calls. */ |
4fe73152 | 3594 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3595 | { |
3596 | tree pint_type, pppchar_type; | |
3597 | ||
3598 | pint_type = build_pointer_type (integer_type_node); | |
3599 | pppchar_type | |
3600 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3601 | ||
3602 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
65cbb21d | 3603 | get_identifier (PREFIX("caf_init")), void_type_node, |
3604 | 2, pint_type, pppchar_type); | |
70b5944a | 3605 | |
3606 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3607 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3608 | ||
d44f2f7c | 3609 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
65cbb21d | 3610 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3611 | 1, integer_type_node); | |
d44f2f7c | 3612 | |
3613 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
65cbb21d | 3614 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3615 | 2, integer_type_node, integer_type_node); | |
d44f2f7c | 3616 | |
a961ca30 | 3617 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
eee0cf09 | 3618 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3619 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
5e04a38a | 3620 | pint_type, pchar_type_node, size_type_node); |
d0d776fb | 3621 | |
3622 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3d2aa0e8 | 3623 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3624 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
5e04a38a | 3625 | size_type_node); |
a961ca30 | 3626 | |
5f4a118e | 3627 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3628 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3629 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3630 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3631 | boolean_type_node, pint_type); |
5f4a118e | 3632 | |
3633 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
6d3cbc0c | 3634 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRWR", void_type_node, 11, |
65cbb21d | 3635 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3636 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6d3cbc0c | 3637 | boolean_type_node, pint_type, pvoid_type_node); |
5f4a118e | 3638 | |
3639 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
eee0cf09 | 3640 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3641 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3642 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3643 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3644 | integer_type_node, boolean_type_node, integer_type_node); | |
3645 | ||
3646 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3647 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRWR", void_type_node, |
3648 | 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3649 | pvoid_type_node, integer_type_node, integer_type_node, | |
3650 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
eee0cf09 | 3651 | |
3652 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3653 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRWR", |
3654 | void_type_node, 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3655 | pvoid_type_node, integer_type_node, integer_type_node, | |
3656 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
eee0cf09 | 3657 | |
3658 | gfor_fndecl_caf_sendget_by_ref | |
3659 | = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3660 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWWRR", |
3661 | void_type_node, 13, pvoid_type_node, integer_type_node, | |
eee0cf09 | 3662 | pvoid_type_node, pvoid_type_node, integer_type_node, |
3663 | pvoid_type_node, integer_type_node, integer_type_node, | |
7d96ee9e | 3664 | boolean_type_node, pint_type, pint_type, integer_type_node, |
3665 | integer_type_node); | |
5f4a118e | 3666 | |
70b5944a | 3667 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3668 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
5e04a38a | 3669 | 3, pint_type, pchar_type_node, size_type_node); |
70b5944a | 3670 | |
71cf3ae6 | 3671 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3672 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
5e04a38a | 3673 | 3, pint_type, pchar_type_node, size_type_node); |
71cf3ae6 | 3674 | |
70b5944a | 3675 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3676 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3677 | 5, integer_type_node, pint_type, pint_type, | |
5e04a38a | 3678 | pchar_type_node, size_type_node); |
70b5944a | 3679 | |
3680 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3681 | get_identifier (PREFIX("caf_error_stop")), | |
5e04a38a | 3682 | void_type_node, 1, integer_type_node); |
70b5944a | 3683 | /* CAF's ERROR STOP doesn't return. */ |
3684 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3685 | ||
3686 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3687 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
5e04a38a | 3688 | void_type_node, 2, pchar_type_node, size_type_node); |
70b5944a | 3689 | /* CAF's ERROR STOP doesn't return. */ |
3690 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3691 | |
ba4d9b7e | 3692 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3693 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
5e04a38a | 3694 | void_type_node, 1, integer_type_node); |
ba4d9b7e | 3695 | /* CAF's STOP doesn't return. */ |
3696 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3697 | ||
3698 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3699 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
5e04a38a | 3700 | void_type_node, 2, pchar_type_node, size_type_node); |
ba4d9b7e | 3701 | /* CAF's STOP doesn't return. */ |
3702 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3703 | ||
97b9ac34 | 3704 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3705 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3706 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3707 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3708 | |
3709 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3710 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3711 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3712 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3713 | |
3714 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3715 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3716 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3717 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
97b9ac34 | 3718 | integer_type_node, integer_type_node); |
3719 | ||
3720 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3721 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3722 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3723 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3724 | integer_type_node, integer_type_node); | |
3725 | ||
498b946e | 3726 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3727 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3728 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3729 | pint_type, pint_type, pchar_type_node, size_type_node); |
498b946e | 3730 | |
3731 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3732 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3733 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
5e04a38a | 3734 | pint_type, pchar_type_node, size_type_node); |
498b946e | 3735 | |
bd47f0bc | 3736 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3737 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3738 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3739 | pint_type, pchar_type_node, size_type_node); |
bd47f0bc | 3740 | |
3741 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3742 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3743 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3744 | pint_type, pchar_type_node, size_type_node); |
bd47f0bc | 3745 | |
3746 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3747 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3748 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3749 | pint_type, pint_type); | |
3750 | ||
d9ca273e | 3751 | gfor_fndecl_caf_fail_image = gfc_build_library_function_decl ( |
3752 | get_identifier (PREFIX("caf_fail_image")), void_type_node, 0); | |
3753 | /* CAF's FAIL doesn't return. */ | |
3754 | TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1; | |
3755 | ||
3756 | gfor_fndecl_caf_failed_images | |
3757 | = gfc_build_library_function_decl_with_spec ( | |
3758 | get_identifier (PREFIX("caf_failed_images")), "WRR", | |
3759 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3760 | integer_type_node); | |
3761 | ||
6d3cbc0c | 3762 | gfor_fndecl_caf_form_team |
3763 | = gfc_build_library_function_decl_with_spec ( | |
3764 | get_identifier (PREFIX("caf_form_team")), "RWR", | |
3765 | void_type_node, 3, integer_type_node, ppvoid_type_node, | |
3766 | integer_type_node); | |
3767 | ||
3768 | gfor_fndecl_caf_change_team | |
3769 | = gfc_build_library_function_decl_with_spec ( | |
3770 | get_identifier (PREFIX("caf_change_team")), "RR", | |
3771 | void_type_node, 2, ppvoid_type_node, | |
3772 | integer_type_node); | |
3773 | ||
3774 | gfor_fndecl_caf_end_team | |
3775 | = gfc_build_library_function_decl ( | |
3776 | get_identifier (PREFIX("caf_end_team")), void_type_node, 0); | |
3777 | ||
3778 | gfor_fndecl_caf_get_team | |
3779 | = gfc_build_library_function_decl_with_spec ( | |
3780 | get_identifier (PREFIX("caf_get_team")), "R", | |
3781 | void_type_node, 1, integer_type_node); | |
3782 | ||
3783 | gfor_fndecl_caf_sync_team | |
3784 | = gfc_build_library_function_decl_with_spec ( | |
3785 | get_identifier (PREFIX("caf_sync_team")), "RR", | |
3786 | void_type_node, 2, ppvoid_type_node, | |
3787 | integer_type_node); | |
3788 | ||
3789 | gfor_fndecl_caf_team_number | |
3790 | = gfc_build_library_function_decl_with_spec ( | |
3791 | get_identifier (PREFIX("caf_team_number")), "R", | |
3792 | integer_type_node, 1, integer_type_node); | |
3793 | ||
d9ca273e | 3794 | gfor_fndecl_caf_image_status |
3795 | = gfc_build_library_function_decl_with_spec ( | |
3796 | get_identifier (PREFIX("caf_image_status")), "RR", | |
3797 | integer_type_node, 2, integer_type_node, ppvoid_type_node); | |
3798 | ||
3799 | gfor_fndecl_caf_stopped_images | |
3800 | = gfc_build_library_function_decl_with_spec ( | |
3801 | get_identifier (PREFIX("caf_stopped_images")), "WRR", | |
3802 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3803 | integer_type_node); | |
3804 | ||
52306a18 | 3805 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3806 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3807 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
5e04a38a | 3808 | pint_type, pchar_type_node, size_type_node); |
52306a18 | 3809 | |
79ed4a8e | 3810 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3811 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3812 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
5e04a38a | 3813 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
79ed4a8e | 3814 | |
3815 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3816 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3817 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
5e04a38a | 3818 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
79ed4a8e | 3819 | |
e39efcef | 3820 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3821 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3822 | void_type_node, 8, pvoid_type_node, | |
65cbb21d | 3823 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
e39efcef | 3824 | NULL_TREE)), |
3825 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
5e04a38a | 3826 | integer_type_node, size_type_node); |
e39efcef | 3827 | |
79ed4a8e | 3828 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3829 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3830 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
5e04a38a | 3831 | pint_type, pchar_type_node, size_type_node); |
3d2aa0e8 | 3832 | |
3833 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3834 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3835 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3836 | pvoid_type_node); | |
70b5944a | 3837 | } |
3838 | ||
4ee9c684 | 3839 | gfc_build_intrinsic_function_decls (); |
3840 | gfc_build_intrinsic_lib_fndecls (); | |
3841 | gfc_build_io_library_fndecls (); | |
3842 | } | |
3843 | ||
3844 | ||
231e961a | 3845 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3846 | |
c5faa799 | 3847 | static void |
3848 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3849 | gfc_wrapped_block *block) | |
4ee9c684 | 3850 | { |
c5faa799 | 3851 | stmtblock_t init; |
4ee9c684 | 3852 | |
b9c7fce7 | 3853 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3854 | |
c5faa799 | 3855 | gfc_start_block (&init); |
4ee9c684 | 3856 | |
3857 | /* Evaluate the string length expression. */ | |
c5faa799 | 3858 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3859 | |
c5faa799 | 3860 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3861 | |
c5faa799 | 3862 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3863 | } |
3864 | ||
3865 | ||
3866 | /* Allocate and cleanup an automatic character variable. */ | |
3867 | ||
c5faa799 | 3868 | static void |
3869 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3870 | { |
c5faa799 | 3871 | stmtblock_t init; |
4ee9c684 | 3872 | tree decl; |
4ee9c684 | 3873 | tree tmp; |
3874 | ||
22d678e8 | 3875 | gcc_assert (sym->backend_decl); |
eeebe20b | 3876 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3877 | |
3714c8b6 | 3878 | gfc_init_block (&init); |
4ee9c684 | 3879 | |
3880 | /* Evaluate the string length expression. */ | |
c5faa799 | 3881 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3882 | |
c5faa799 | 3883 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3884 | |
4ee9c684 | 3885 | decl = sym->backend_decl; |
3886 | ||
afcf285e | 3887 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3888 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3889 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3890 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3891 | |
c5faa799 | 3892 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3893 | } |
3894 | ||
c8f1568f | 3895 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3896 | ||
c5faa799 | 3897 | static void |
3898 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3899 | { |
c5faa799 | 3900 | stmtblock_t init; |
c8f1568f | 3901 | |
3902 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3903 | gfc_start_block (&init); |
c8f1568f | 3904 | |
3905 | /* Set the initial value to length. See the comments in | |
3906 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3907 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3908 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3909 | |
c5faa799 | 3910 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3911 | } |
3912 | ||
d4163395 | 3913 | static void |
3914 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3915 | { | |
3916 | tree t = *tp, var, val; | |
3917 | ||
3918 | if (t == NULL || t == error_mark_node) | |
3919 | return; | |
3920 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3921 | return; | |
3922 | ||
3923 | if (TREE_CODE (t) == SAVE_EXPR) | |
3924 | { | |
3925 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3926 | { | |
3927 | *tp = TREE_OPERAND (t, 0); | |
3928 | return; | |
3929 | } | |
3930 | val = TREE_OPERAND (t, 0); | |
3931 | } | |
3932 | else | |
3933 | val = t; | |
3934 | ||
3935 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3936 | gfc_add_decl_to_function (var); | |
1ec957b0 | 3937 | gfc_add_modify (body, var, unshare_expr (val)); |
d4163395 | 3938 | if (TREE_CODE (t) == SAVE_EXPR) |
3939 | TREE_OPERAND (t, 0) = var; | |
3940 | *tp = var; | |
3941 | } | |
3942 | ||
3943 | static void | |
3944 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3945 | { | |
3946 | tree t; | |
3947 | ||
3948 | if (type == NULL || type == error_mark_node) | |
3949 | return; | |
3950 | ||
3951 | type = TYPE_MAIN_VARIANT (type); | |
3952 | ||
3953 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3954 | { | |
3955 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3956 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3957 | ||
3958 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3959 | { | |
3960 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3961 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3962 | } | |
3963 | } | |
3964 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3965 | { | |
3966 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3967 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3968 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3969 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3970 | ||
3971 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3972 | { | |
3973 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3974 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3975 | } | |
3976 | } | |
3977 | } | |
3978 | ||
3979 | /* Make sure all type sizes and array domains are either constant, | |
3980 | or variable or parameter decls. This is a simplified variant | |
3981 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3982 | variables in the expressions have been gimplified yet. | |
3983 | As type sizes and domains for various variable length arrays | |
3984 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3985 | time, without this routine gimplify_type_sizes in the middle-end | |
3986 | could result in the type sizes being gimplified earlier than where | |
3987 | those variables are initialized. */ | |
3988 | ||
3989 | void | |
3990 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3991 | { | |
3992 | tree type = TREE_TYPE (sym->backend_decl); | |
3993 | ||
3994 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3995 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3996 | { | |
3997 | if (! current_fake_result_decl) | |
3998 | return; | |
3999 | ||
4000 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
4001 | } | |
4002 | ||
4003 | while (POINTER_TYPE_P (type)) | |
4004 | type = TREE_TYPE (type); | |
4005 | ||
4006 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
4007 | { | |
4008 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
4009 | ||
4010 | while (POINTER_TYPE_P (etype)) | |
4011 | etype = TREE_TYPE (etype); | |
4012 | ||
4013 | gfc_trans_vla_type_sizes_1 (etype, body); | |
4014 | } | |
4015 | ||
4016 | gfc_trans_vla_type_sizes_1 (type, body); | |
4017 | } | |
4018 | ||
4ee9c684 | 4019 | |
f0d4969f | 4020 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 4021 | and using trans_assignment to do the work. Set dealloc to false |
4022 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 4023 | void |
4024 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 4025 | { |
f0d4969f | 4026 | gfc_expr *e; |
87114d2e | 4027 | tree tmp; |
4028 | tree present; | |
4029 | ||
c5faa799 | 4030 | gcc_assert (block); |
4031 | ||
f0efd2e8 | 4032 | /* Initialization of PDTs is done elsewhere. */ |
4033 | if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
4034 | return; | |
4035 | ||
f0d4969f | 4036 | gcc_assert (!sym->attr.allocatable); |
4037 | gfc_set_sym_referenced (sym); | |
4038 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 4039 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 4040 | if (sym->attr.dummy && (sym->attr.optional |
4041 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 4042 | { |
f0d4969f | 4043 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 4044 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
4045 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 4046 | } |
c5faa799 | 4047 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 4048 | gfc_free_expr (e); |
87114d2e | 4049 | } |
4050 | ||
4051 | ||
8714fc76 | 4052 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
4053 | them their default initializer, if they do not have allocatable | |
293d72e0 | 4054 | components, they have their allocatable components deallocated. */ |
8714fc76 | 4055 | |
c5faa799 | 4056 | static void |
4057 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 4058 | { |
c5faa799 | 4059 | stmtblock_t init; |
f0d4969f | 4060 | gfc_formal_arglist *f; |
8714fc76 | 4061 | tree tmp; |
5907c3ea | 4062 | tree present; |
f0d4969f | 4063 | |
c5faa799 | 4064 | gfc_init_block (&init); |
6777213b | 4065 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 4066 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 4067 | && !f->sym->attr.pointer |
4068 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 4069 | { |
942ba353 | 4070 | tmp = NULL_TREE; |
4071 | ||
4072 | /* Note: Allocatables are excluded as they are already handled | |
4073 | by the caller. */ | |
4074 | if (!f->sym->attr.allocatable | |
4075 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 4076 | { |
942ba353 | 4077 | stmtblock_t block; |
4078 | gfc_expr *e; | |
4079 | ||
4080 | gfc_init_block (&block); | |
4081 | f->sym->attr.referenced = 1; | |
4082 | e = gfc_lval_expr_from_sym (f->sym); | |
4083 | gfc_add_finalizer_call (&block, e); | |
4084 | gfc_free_expr (e); | |
4085 | tmp = gfc_finish_block (&block); | |
4086 | } | |
5907c3ea | 4087 | |
942ba353 | 4088 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4089 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4090 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4091 | f->sym->backend_decl, | |
4092 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 4093 | |
942ba353 | 4094 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4095 | || f->sym->ns->proc_name->attr.entry_master)) | |
4096 | { | |
4097 | present = gfc_conv_expr_present (f->sym); | |
4098 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4099 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 4100 | } |
942ba353 | 4101 | |
4102 | if (tmp != NULL_TREE) | |
4103 | gfc_add_expr_to_block (&init, tmp); | |
4104 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 4105 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 4106 | } |
c56d57d6 | 4107 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4108 | && f->sym->ts.type == BT_CLASS | |
4109 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 4110 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 4111 | { |
942ba353 | 4112 | stmtblock_t block; |
4113 | gfc_expr *e; | |
4114 | ||
4115 | gfc_init_block (&block); | |
4116 | f->sym->attr.referenced = 1; | |
4117 | e = gfc_lval_expr_from_sym (f->sym); | |
4118 | gfc_add_finalizer_call (&block, e); | |
4119 | gfc_free_expr (e); | |
4120 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 4121 | |
4122 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4123 | { | |
4124 | present = gfc_conv_expr_present (f->sym); | |
4125 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4126 | present, tmp, | |
4127 | build_empty_stmt (input_location)); | |
4128 | } | |
4129 | ||
4130 | gfc_add_expr_to_block (&init, tmp); | |
4131 | } | |
f0d4969f | 4132 | |
c5faa799 | 4133 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 4134 | } |
4135 | ||
87114d2e | 4136 | |
b345a09f | 4137 | /* Helper function to manage deferred string lengths. */ |
4138 | ||
4139 | static tree | |
4140 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4141 | locus *loc) | |
4142 | { | |
4143 | tree tmp; | |
4144 | ||
4145 | /* Character length passed by reference. */ | |
4146 | tmp = sym->ts.u.cl->passed_length; | |
4147 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4148 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4149 | ||
4150 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4151 | /* Zero the string length when entering the scope. */ | |
4152 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4153 | build_int_cst (gfc_charlen_type_node, 0)); | |
4154 | else | |
4155 | { | |
4156 | tree tmp2; | |
4157 | ||
4158 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4159 | gfc_charlen_type_node, | |
4160 | sym->ts.u.cl->backend_decl, tmp); | |
4161 | if (sym->attr.optional) | |
4162 | { | |
4163 | tree present = gfc_conv_expr_present (sym); | |
4164 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4165 | void_type_node, present, tmp2, | |
4166 | build_empty_stmt (input_location)); | |
4167 | } | |
4168 | gfc_add_expr_to_block (init, tmp2); | |
4169 | } | |
4170 | ||
4171 | gfc_restore_backend_locus (loc); | |
4172 | ||
4173 | /* Pass the final character length back. */ | |
4174 | if (sym->attr.intent != INTENT_IN) | |
4175 | { | |
4176 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4177 | gfc_charlen_type_node, tmp, | |
4178 | sym->ts.u.cl->backend_decl); | |
4179 | if (sym->attr.optional) | |
4180 | { | |
4181 | tree present = gfc_conv_expr_present (sym); | |
4182 | tmp = build3_loc (input_location, COND_EXPR, | |
4183 | void_type_node, present, tmp, | |
4184 | build_empty_stmt (input_location)); | |
4185 | } | |
4186 | } | |
4187 | else | |
4188 | tmp = NULL_TREE; | |
4189 | ||
4190 | return tmp; | |
4191 | } | |
4192 | ||
9ead5324 | 4193 | |
4194 | /* Get the result expression for a procedure. */ | |
4195 | ||
4196 | static tree | |
4197 | get_proc_result (gfc_symbol* sym) | |
4198 | { | |
4199 | if (sym->attr.subroutine || sym == sym->result) | |
4200 | { | |
4201 | if (current_fake_result_decl != NULL) | |
4202 | return TREE_VALUE (current_fake_result_decl); | |
4203 | ||
4204 | return NULL_TREE; | |
4205 | } | |
4206 | ||
4207 | return sym->result->backend_decl; | |
4208 | } | |
4209 | ||
4210 | ||
4ee9c684 | 4211 | /* Generate function entry and exit code, and add it to the function body. |
4212 | This includes: | |
f888a3fb | 4213 | Allocation and initialization of array variables. |
4ee9c684 | 4214 | Allocation of character string variables. |
c8f1568f | 4215 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 4216 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 4217 | Initialization of ASSOCIATE names. |
0a96a7cc | 4218 | Automatic deallocation. */ |
4ee9c684 | 4219 | |
89ac8ba1 | 4220 | void |
4221 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 4222 | { |
4223 | locus loc; | |
4224 | gfc_symbol *sym; | |
d4163395 | 4225 | gfc_formal_arglist *f; |
c5faa799 | 4226 | stmtblock_t tmpblock; |
25dd7350 | 4227 | bool seen_trans_deferred_array = false; |
9d958d5b | 4228 | bool is_pdt_type = false; |
617125a6 | 4229 | tree tmp = NULL; |
4230 | gfc_expr *e; | |
4231 | gfc_se se; | |
4232 | stmtblock_t init; | |
4ee9c684 | 4233 | |
4234 | /* Deal with implicit return variables. Explicit return variables will | |
4235 | already have been added. */ | |
4236 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4237 | { | |
4238 | if (!current_fake_result_decl) | |
4239 | { | |
c6871095 | 4240 | gfc_entry_list *el = NULL; |
4241 | if (proc_sym->attr.entry_master) | |
4242 | { | |
4243 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4244 | if (el->sym != el->sym->result) | |
4245 | break; | |
4246 | } | |
fa7b6574 | 4247 | /* TODO: move to the appropriate place in resolve.c. */ |
8b72061f | 4248 | if (warn_return_type > 0 && el == NULL) |
4166acc7 | 4249 | gfc_warning (OPT_Wreturn_type, |
4250 | "Return value of function %qs at %L not set", | |
fa7b6574 | 4251 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 4252 | } |
c6871095 | 4253 | else if (proc_sym->as) |
4ee9c684 | 4254 | { |
d4163395 | 4255 | tree result = TREE_VALUE (current_fake_result_decl); |
9da84a54 | 4256 | gfc_save_backend_locus (&loc); |
4257 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4258 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 4259 | |
4260 | /* An automatic character length, pointer array result. */ | |
4261 | if (proc_sym->ts.type == BT_CHARACTER | |
fe732a9b | 4262 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
b345a09f | 4263 | { |
4264 | tmp = NULL; | |
4265 | if (proc_sym->ts.deferred) | |
4266 | { | |
b345a09f | 4267 | gfc_start_block (&init); |
4268 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4269 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4270 | } | |
4271 | else | |
4272 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4273 | } | |
4ee9c684 | 4274 | } |
4275 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4276 | { | |
617125a6 | 4277 | if (proc_sym->ts.deferred) |
4278 | { | |
4279 | tmp = NULL; | |
da2c4122 | 4280 | gfc_save_backend_locus (&loc); |
4281 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 4282 | gfc_start_block (&init); |
4283 | /* Zero the string length on entry. */ | |
4284 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4285 | build_int_cst (gfc_charlen_type_node, 0)); | |
4286 | /* Null the pointer. */ | |
4287 | e = gfc_lval_expr_from_sym (proc_sym); | |
4288 | gfc_init_se (&se, NULL); | |
4289 | se.want_pointer = 1; | |
4290 | gfc_conv_expr (&se, e); | |
4291 | gfc_free_expr (e); | |
4292 | tmp = se.expr; | |
4293 | gfc_add_modify (&init, tmp, | |
4294 | fold_convert (TREE_TYPE (se.expr), | |
4295 | null_pointer_node)); | |
da2c4122 | 4296 | gfc_restore_backend_locus (&loc); |
617125a6 | 4297 | |
4298 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 4299 | tmp = proc_sym->ts.u.cl->backend_decl; |
b345a09f | 4300 | if (TREE_CODE (tmp) != INDIRECT_REF |
4301 | && proc_sym->ts.u.cl->passed_length) | |
ddcfeaf1 | 4302 | { |
a4731200 | 4303 | tmp = proc_sym->ts.u.cl->passed_length; |
4304 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
a4731200 | 4305 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
9f4d9f83 | 4306 | TREE_TYPE (tmp), tmp, |
4307 | fold_convert | |
4308 | (TREE_TYPE (tmp), | |
4309 | proc_sym->ts.u.cl->backend_decl)); | |
ddcfeaf1 | 4310 | } |
4311 | else | |
4312 | tmp = NULL_TREE; | |
4313 | ||
617125a6 | 4314 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4315 | } | |
fe732a9b | 4316 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
89ac8ba1 | 4317 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4318 | } |
4319 | else | |
829d7a08 | 4320 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4321 | } |
9ead5324 | 4322 | else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym)) |
4323 | { | |
4324 | /* Nullify explicit return class arrays on entry. */ | |
4325 | tree type; | |
4326 | tmp = get_proc_result (proc_sym); | |
4327 | if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp))) | |
4328 | { | |
4329 | gfc_start_block (&init); | |
4330 | tmp = gfc_class_data_get (tmp); | |
4331 | type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp)); | |
4332 | gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0)); | |
4333 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); | |
4334 | } | |
4335 | } | |
4336 | ||
4ee9c684 | 4337 | |
87114d2e | 4338 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4339 | should be done here so that the offsets and lbounds of arrays | |
4340 | are available. */ | |
da2c4122 | 4341 | gfc_save_backend_locus (&loc); |
4342 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4343 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4344 | gfc_restore_backend_locus (&loc); |
87114d2e | 4345 | |
4ee9c684 | 4346 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4347 | { | |
6b3ceb4e | 4348 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4349 | && (sym->ts.u.derived->attr.alloc_comp | |
4350 | || gfc_is_finalizable (sym->ts.u.derived, | |
4351 | NULL)); | |
8f3f9eab | 4352 | if (sym->assoc) |
3c82e013 | 4353 | continue; |
4354 | ||
9d958d5b | 4355 | if (sym->ts.type == BT_DERIVED |
4356 | && sym->ts.u.derived | |
4357 | && sym->ts.u.derived->attr.pdt_type) | |
4358 | { | |
4359 | is_pdt_type = true; | |
4360 | gfc_init_block (&tmpblock); | |
4361 | if (!(sym->attr.dummy | |
4362 | || sym->attr.pointer | |
4363 | || sym->attr.allocatable)) | |
4364 | { | |
4365 | tmp = gfc_allocate_pdt_comp (sym->ts.u.derived, | |
4366 | sym->backend_decl, | |
4367 | sym->as ? sym->as->rank : 0, | |
4368 | sym->param_list); | |
4369 | gfc_add_expr_to_block (&tmpblock, tmp); | |
2222c3ab | 4370 | if (!sym->attr.result) |
4371 | tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived, | |
4372 | sym->backend_decl, | |
4373 | sym->as ? sym->as->rank : 0); | |
4374 | else | |
4375 | tmp = NULL_TREE; | |
9d958d5b | 4376 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4377 | } | |
4378 | else if (sym->attr.dummy) | |
4379 | { | |
4380 | tmp = gfc_check_pdt_dummy (sym->ts.u.derived, | |
4381 | sym->backend_decl, | |
4382 | sym->as ? sym->as->rank : 0, | |
4383 | sym->param_list); | |
4384 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4385 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4386 | } | |
4387 | } | |
4388 | else if (sym->ts.type == BT_CLASS | |
4389 | && CLASS_DATA (sym)->ts.u.derived | |
4390 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type) | |
4391 | { | |
4392 | gfc_component *data = CLASS_DATA (sym); | |
4393 | is_pdt_type = true; | |
4394 | gfc_init_block (&tmpblock); | |
4395 | if (!(sym->attr.dummy | |
4396 | || CLASS_DATA (sym)->attr.pointer | |
4397 | || CLASS_DATA (sym)->attr.allocatable)) | |
4398 | { | |
4399 | tmp = gfc_class_data_get (sym->backend_decl); | |
4400 | tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp, | |
4401 | data->as ? data->as->rank : 0, | |
4402 | sym->param_list); | |
4403 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4404 | tmp = gfc_class_data_get (sym->backend_decl); | |
2222c3ab | 4405 | if (!sym->attr.result) |
4406 | tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp, | |
4407 | data->as ? data->as->rank : 0); | |
4408 | else | |
4409 | tmp = NULL_TREE; | |
9d958d5b | 4410 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4411 | } | |
4412 | else if (sym->attr.dummy) | |
4413 | { | |
4414 | tmp = gfc_class_data_get (sym->backend_decl); | |
4415 | tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp, | |
4416 | data->as ? data->as->rank : 0, | |
4417 | sym->param_list); | |
4418 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4419 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4420 | } | |
4421 | } | |
4422 | ||
47e6a59a | 4423 | if (sym->attr.pointer && sym->attr.dimension |
0a5fd921 | 4424 | && sym->attr.save == SAVE_NONE |
47e6a59a | 4425 | && !sym->attr.use_assoc |
4426 | && !sym->attr.host_assoc | |
4427 | && !sym->attr.dummy | |
4428 | && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))) | |
a56d63bc | 4429 | { |
4430 | gfc_init_block (&tmpblock); | |
47e6a59a | 4431 | gfc_conv_descriptor_span_set (&tmpblock, sym->backend_decl, |
4432 | build_int_cst (gfc_array_index_type, 0)); | |
a56d63bc | 4433 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
4434 | NULL_TREE); | |
4435 | } | |
4436 | ||
85ae3cab | 4437 | if (sym->ts.type == BT_CLASS |
eb106faf | 4438 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4439 | && CLASS_DATA (sym)->attr.allocatable) |
4440 | { | |
4441 | tree vptr; | |
4442 | ||
4443 | if (UNLIMITED_POLY (sym)) | |
4444 | vptr = null_pointer_node; | |
4445 | else | |
4446 | { | |
4447 | gfc_symbol *vsym; | |
4448 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4449 | vptr = gfc_get_symbol_decl (vsym); | |
4450 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4451 | } | |
4452 | ||
4453 | if (CLASS_DATA (sym)->attr.dimension | |
4454 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4455 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4456 | { |
4457 | tmp = gfc_class_data_get (sym->backend_decl); | |
4458 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4459 | } | |
4460 | else | |
4461 | tmp = null_pointer_node; | |
4462 | ||
4463 | DECL_INITIAL (sym->backend_decl) | |
4464 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4465 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4466 | } | |
b345a09f | 4467 | else if ((sym->attr.dimension || sym->attr.codimension |
4468 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
4ee9c684 | 4469 | { |
c6793847 | 4470 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4471 | symbol_attribute *array_attr; | |
4472 | gfc_array_spec *as; | |
b345a09f | 4473 | array_type type_of_array; |
c6793847 | 4474 | |
4475 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4476 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4477 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
b345a09f | 4478 | type_of_array = as->type; |
4479 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4480 | type_of_array = AS_EXPLICIT; | |
4481 | switch (type_of_array) | |
4ee9c684 | 4482 | { |
4483 | case AS_EXPLICIT: | |
4484 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4485 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4486 | /* Allocatable and pointer arrays need to processed |
4487 | explicitly. */ | |
4488 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4489 | || (sym->ts.type == BT_CLASS | |
4490 | && CLASS_DATA (sym)->attr.class_pointer) | |
4491 | || array_attr->allocatable) | |
4ee9c684 | 4492 | { |
4493 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4494 | { |
4495 | gfc_save_backend_locus (&loc); | |
4496 | gfc_set_backend_locus (&sym->declared_at); | |
4497 | gfc_trans_static_array_pointer (sym); | |
4498 | gfc_restore_backend_locus (&loc); | |
4499 | } | |
4ee9c684 | 4500 | else |
25dd7350 | 4501 | { |
4502 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4503 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4504 | } |
4ee9c684 | 4505 | } |
c6793847 | 4506 | else if (sym->attr.codimension |
4507 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4508 | { |
4509 | gfc_init_block (&tmpblock); | |
4510 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4511 | &tmpblock, sym); | |
4512 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4513 | NULL_TREE); | |
4514 | continue; | |
4515 | } | |
197423f5 | 4516 | else |
4ee9c684 | 4517 | { |
da2c4122 | 4518 | gfc_save_backend_locus (&loc); |
4519 | gfc_set_backend_locus (&sym->declared_at); | |
4520 | ||
6b3ceb4e | 4521 | if (alloc_comp_or_fini) |
25dd7350 | 4522 | { |
4523 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4524 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4525 | } |
f0d4969f | 4526 | else if (sym->ts.type == BT_DERIVED |
4527 | && sym->value | |
4528 | && !sym->attr.data | |
4529 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4530 | { |
4531 | gfc_start_block (&tmpblock); | |
4532 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4533 | gfc_add_init_cleanup (block, |
c5faa799 | 4534 | gfc_finish_block (&tmpblock), |
4535 | NULL_TREE); | |
4536 | } | |
25dd7350 | 4537 | |
c5faa799 | 4538 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4539 | sym, block); |
4671339c | 4540 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4541 | } |
4542 | break; | |
4543 | ||
4544 | case AS_ASSUMED_SIZE: | |
4545 | /* Must be a dummy parameter. */ | |
c6793847 | 4546 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4547 | |
4548 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4549 | if (sym->attr.dummy) |
89ac8ba1 | 4550 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4551 | break; |
4ee9c684 | 4552 | |
4553 | case AS_ASSUMED_SHAPE: | |
4554 | /* Must be a dummy parameter. */ | |
22d678e8 | 4555 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4556 | |
89ac8ba1 | 4557 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4558 | break; |
4559 | ||
f00f6dd6 | 4560 | case AS_ASSUMED_RANK: |
4ee9c684 | 4561 | case AS_DEFERRED: |
25dd7350 | 4562 | seen_trans_deferred_array = true; |
89ac8ba1 | 4563 | gfc_trans_deferred_array (sym, block); |
b345a09f | 4564 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4565 | && sym->attr.result) | |
4566 | { | |
4567 | gfc_start_block (&init); | |
4568 | gfc_save_backend_locus (&loc); | |
4569 | gfc_set_backend_locus (&sym->declared_at); | |
4570 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4571 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4572 | } | |
4ee9c684 | 4573 | break; |
4574 | ||
4575 | default: | |
22d678e8 | 4576 | gcc_unreachable (); |
4ee9c684 | 4577 | } |
6b3ceb4e | 4578 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4579 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4580 | } |
fd23cc08 | 4581 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4582 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4583 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4584 | continue; |
617125a6 | 4585 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4586 | && (sym->attr.allocatable |
b345a09f | 4587 | || (sym->attr.pointer && sym->attr.result) |
456dd7d6 | 4588 | || (sym->ts.type == BT_CLASS |
4589 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4590 | { |
eb106faf | 4591 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4592 | { |
d0d776fb | 4593 | tree descriptor = NULL_TREE; |
4594 | ||
da2c4122 | 4595 | gfc_save_backend_locus (&loc); |
4596 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4597 | gfc_start_block (&init); |
617125a6 | 4598 | |
b345a09f | 4599 | if (!sym->attr.pointer) |
617125a6 | 4600 | { |
b345a09f | 4601 | /* Nullify and automatic deallocation of allocatable |
4602 | scalars. */ | |
4603 | e = gfc_lval_expr_from_sym (sym); | |
4604 | if (sym->ts.type == BT_CLASS) | |
4605 | gfc_add_data_component (e); | |
4606 | ||
4607 | gfc_init_se (&se, NULL); | |
4608 | if (sym->ts.type != BT_CLASS | |
4609 | || sym->ts.u.derived->attr.dimension | |
4610 | || sym->ts.u.derived->attr.codimension) | |
883d6776 | 4611 | { |
b345a09f | 4612 | se.want_pointer = 1; |
4613 | gfc_conv_expr (&se, e); | |
4614 | } | |
4615 | else if (sym->ts.type == BT_CLASS | |
4616 | && !CLASS_DATA (sym)->attr.dimension | |
4617 | && !CLASS_DATA (sym)->attr.codimension) | |
4618 | { | |
4619 | se.want_pointer = 1; | |
4620 | gfc_conv_expr (&se, e); | |
883d6776 | 4621 | } |
617125a6 | 4622 | else |
883d6776 | 4623 | { |
b345a09f | 4624 | se.descriptor_only = 1; |
4625 | gfc_conv_expr (&se, e); | |
4626 | descriptor = se.expr; | |
4627 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4628 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
883d6776 | 4629 | } |
b345a09f | 4630 | gfc_free_expr (e); |
617125a6 | 4631 | |
b345a09f | 4632 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
883d6776 | 4633 | { |
b345a09f | 4634 | /* Nullify when entering the scope. */ |
883d6776 | 4635 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
b345a09f | 4636 | TREE_TYPE (se.expr), se.expr, |
4637 | fold_convert (TREE_TYPE (se.expr), | |
4638 | null_pointer_node)); | |
883d6776 | 4639 | if (sym->attr.optional) |
4640 | { | |
4641 | tree present = gfc_conv_expr_present (sym); | |
4642 | tmp = build3_loc (input_location, COND_EXPR, | |
4643 | void_type_node, present, tmp, | |
4644 | build_empty_stmt (input_location)); | |
4645 | } | |
b345a09f | 4646 | gfc_add_expr_to_block (&init, tmp); |
883d6776 | 4647 | } |
617125a6 | 4648 | } |
b345a09f | 4649 | |
4650 | if ((sym->attr.dummy || sym->attr.result) | |
4651 | && sym->ts.type == BT_CHARACTER | |
4652 | && sym->ts.deferred | |
4653 | && sym->ts.u.cl->passed_length) | |
4654 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
da2c4122 | 4655 | else |
8c089b5c | 4656 | { |
4657 | gfc_restore_backend_locus (&loc); | |
4658 | tmp = NULL_TREE; | |
4659 | } | |
908e9973 | 4660 | |
4661 | /* Deallocate when leaving the scope. Nullifying is not | |
4662 | needed. */ | |
b345a09f | 4663 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
afb69dbf | 4664 | && !sym->ns->proc_name->attr.is_main_program) |
d0d776fb | 4665 | { |
4666 | if (sym->ts.type == BT_CLASS | |
4667 | && CLASS_DATA (sym)->attr.codimension) | |
4668 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4669 | NULL_TREE, NULL_TREE, | |
4670 | NULL_TREE, true, NULL, | |
3d2aa0e8 | 4671 | GFC_CAF_COARRAY_ANALYZE); |
d0d776fb | 4672 | else |
c23adf93 | 4673 | { |
4674 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
3d2aa0e8 | 4675 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4676 | NULL_TREE, | |
4677 | NULL_TREE, | |
4678 | true, expr, | |
4679 | sym->ts); | |
c23adf93 | 4680 | gfc_free_expr (expr); |
4681 | } | |
d0d776fb | 4682 | } |
b345a09f | 4683 | |
afc44c79 | 4684 | if (sym->ts.type == BT_CLASS) |
4685 | { | |
4686 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4687 | gfc_symbol *vtab; |
afc44c79 | 4688 | tree rhs; |
da2c4122 | 4689 | |
4690 | gfc_save_backend_locus (&loc); | |
4691 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4692 | e = gfc_lval_expr_from_sym (sym); |
4693 | gfc_add_vptr_component (e); | |
4694 | gfc_init_se (&se, NULL); | |
4695 | se.want_pointer = 1; | |
4696 | gfc_conv_expr (&se, e); | |
4697 | gfc_free_expr (e); | |
a90fe829 | 4698 | if (UNLIMITED_POLY (sym)) |
4699 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4700 | else | |
4701 | { | |
4702 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4703 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4704 | gfc_get_symbol_decl (vtab)); | |
4705 | } | |
afc44c79 | 4706 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4707 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4708 | } |
4709 | ||
89ac8ba1 | 4710 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4711 | } |
0a96a7cc | 4712 | } |
617125a6 | 4713 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4714 | { | |
4715 | tree tmp = NULL; | |
4716 | stmtblock_t init; | |
4717 | ||
4718 | /* If we get to here, all that should be left are pointers. */ | |
4719 | gcc_assert (sym->attr.pointer); | |
4720 | ||
4721 | if (sym->attr.dummy) | |
4722 | { | |
4723 | gfc_start_block (&init); | |
b345a09f | 4724 | gfc_save_backend_locus (&loc); |
4725 | gfc_set_backend_locus (&sym->declared_at); | |
4726 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
617125a6 | 4727 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4728 | } | |
4729 | } | |
3e715c81 | 4730 | else if (sym->ts.deferred) |
4731 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4732 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4733 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4734 | else if (sym->ts.type == BT_CHARACTER) |
4735 | { | |
4671339c | 4736 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4737 | gfc_set_backend_locus (&sym->declared_at); |
4738 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4739 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4740 | else |
89ac8ba1 | 4741 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4742 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4743 | } |
c8f1568f | 4744 | else if (sym->attr.assign) |
4745 | { | |
4671339c | 4746 | gfc_save_backend_locus (&loc); |
c8f1568f | 4747 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4748 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4749 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4750 | } |
f0d4969f | 4751 | else if (sym->ts.type == BT_DERIVED |
4752 | && sym->value | |
4753 | && !sym->attr.data | |
4754 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4755 | { |
4756 | gfc_start_block (&tmpblock); | |
4757 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4758 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4759 | NULL_TREE); |
4760 | } | |
9d958d5b | 4761 | else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type) |
22d678e8 | 4762 | gcc_unreachable (); |
4ee9c684 | 4763 | } |
4764 | ||
c5faa799 | 4765 | gfc_init_block (&tmpblock); |
d4163395 | 4766 | |
6777213b | 4767 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4768 | { |
4769 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4770 | { | |
eeebe20b | 4771 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4772 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4773 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4774 | } |
1e853e89 | 4775 | } |
d4163395 | 4776 | |
4777 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4778 | && current_fake_result_decl != NULL) | |
4779 | { | |
eeebe20b | 4780 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4781 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4782 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4783 | } |
4784 | ||
89ac8ba1 | 4785 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4786 | } |
4787 | ||
b345a09f | 4788 | |
b594087e | 4789 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4790 | { |
2ef51f0e | 4791 | typedef const char *compare_type; |
df4d540f | 4792 | |
2ef51f0e | 4793 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4794 | static bool | |
4795 | equal (module_htab_entry *a, const char *b) | |
4796 | { | |
4797 | return !strcmp (a->name, b); | |
4798 | } | |
4799 | }; | |
4800 | ||
4801 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4802 | |
4803 | /* Hash and equality functions for module_htab's decls. */ | |
4804 | ||
2ef51f0e | 4805 | hashval_t |
4806 | module_decl_hasher::hash (tree t) | |
df4d540f | 4807 | { |
df4d540f | 4808 | const_tree n = DECL_NAME (t); |
4809 | if (n == NULL_TREE) | |
4810 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4811 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4812 | } |
4813 | ||
2ef51f0e | 4814 | bool |
4815 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4816 | { |
df4d540f | 4817 | const_tree n1 = DECL_NAME (t1); |
4818 | if (n1 == NULL_TREE) | |
4819 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4820 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4821 | } |
4822 | ||
4823 | struct module_htab_entry * | |
4824 | gfc_find_module (const char *name) | |
4825 | { | |
df4d540f | 4826 | if (! module_htab) |
2ef51f0e | 4827 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4828 | |
2ef51f0e | 4829 | module_htab_entry **slot |
4830 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4831 | if (*slot == NULL) |
4832 | { | |
25a27413 | 4833 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4834 | |
dc326dc0 | 4835 | entry->name = gfc_get_string ("%s", name); |
2ef51f0e | 4836 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4837 | *slot = entry; | |
df4d540f | 4838 | } |
2ef51f0e | 4839 | return *slot; |
df4d540f | 4840 | } |
4841 | ||
4842 | void | |
4843 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4844 | { | |
df4d540f | 4845 | const char *name; |
4846 | ||
4847 | if (DECL_NAME (decl)) | |
4848 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4849 | else | |
4850 | { | |
4851 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4852 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4853 | } | |
2ef51f0e | 4854 | tree *slot |
4855 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4856 | INSERT); | |
df4d540f | 4857 | if (*slot == NULL) |
2ef51f0e | 4858 | *slot = decl; |
df4d540f | 4859 | } |
4860 | ||
c40a5c1b | 4861 | |
4862 | /* Generate debugging symbols for namelists. This function must come after | |
4863 | generate_local_decl to ensure that the variables in the namelist are | |
4864 | already declared. */ | |
4865 | ||
4866 | static tree | |
4867 | generate_namelist_decl (gfc_symbol * sym) | |
4868 | { | |
4869 | gfc_namelist *nml; | |
4870 | tree decl; | |
4871 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4872 | ||
4873 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4874 | for (nml = sym->namelist; nml; nml = nml->next) | |
4875 | { | |
4876 | if (nml->sym->backend_decl == NULL_TREE) | |
4877 | { | |
4878 | nml->sym->attr.referenced = 1; | |
4879 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4880 | } | |
0a32260c | 4881 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4882 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4883 | } | |
4884 | ||
4885 | decl = make_node (NAMELIST_DECL); | |
4886 | TREE_TYPE (decl) = void_type_node; | |
4887 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4888 | DECL_NAME (decl) = get_identifier (sym->name); | |
4889 | return decl; | |
4890 | } | |
4891 | ||
4892 | ||
4ee9c684 | 4893 | /* Output an initialized decl for a module variable. */ |
4894 | ||
4895 | static void | |
4896 | gfc_create_module_variable (gfc_symbol * sym) | |
4897 | { | |
4898 | tree decl; | |
4ee9c684 | 4899 | |
d77f260f | 4900 | /* Module functions with alternate entries are dealt with later and |
4901 | would get caught by the next condition. */ | |
4902 | if (sym->attr.entry) | |
4903 | return; | |
4904 | ||
c5d33754 | 4905 | /* Make sure we convert the types of the derived types from iso_c_binding |
4906 | into (void *). */ | |
4907 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4908 | && sym->ts.type == BT_DERIVED) | |
4909 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4910 | ||
d7cd448a | 4911 | if (gfc_fl_struct (sym->attr.flavor) |
df4d540f | 4912 | && sym->backend_decl |
4913 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4914 | { | |
4915 | decl = sym->backend_decl; | |
4916 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4917 | |
fe9d2f5a | 4918 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 4919 | { |
4920 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4921 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4922 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4923 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4924 | == sym->ns->proc_name->backend_decl); | |
4925 | } | |
df4d540f | 4926 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4927 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4928 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4929 | } | |
4930 | ||
cf269acc | 4931 | /* Only output variables, procedure pointers and array valued, |
4932 | or derived type, parameters. */ | |
4ee9c684 | 4933 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4934 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4935 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4936 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4937 | return; |
4938 | ||
df4d540f | 4939 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4940 | { | |
4941 | decl = sym->backend_decl; | |
16a40513 | 4942 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4943 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4944 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4945 | gfc_module_add_decl (cur_module, decl); | |
4946 | } | |
4947 | ||
d43a7f7f | 4948 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4949 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 4950 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4951 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4952 | return; |
4953 | ||
2b685f8e | 4954 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4955 | if (sym->backend_decl |
df4d540f | 4956 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4957 | return; | |
2b685f8e | 4958 | |
23d075f4 | 4959 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4960 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4961 | sym->name); | |
4ee9c684 | 4962 | |
92983bfd | 4963 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4964 | && (sym->attr.access == ACCESS_UNKNOWN | |
4965 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4966 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4967 | && flag_module_private)))) |
92983bfd | 4968 | sym->attr.access = ACCESS_PRIVATE; |
4969 | ||
4970 | if (warn_unused_variable && !sym->attr.referenced | |
4971 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4972 | gfc_warning (OPT_Wunused_value, |
4973 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4974 | sym->name, &sym->declared_at); |
4975 | ||
4ee9c684 | 4976 | /* We always want module variables to be created. */ |
4977 | sym->attr.referenced = 1; | |
4978 | /* Create the decl. */ | |
4979 | decl = gfc_get_symbol_decl (sym); | |
4980 | ||
4ee9c684 | 4981 | /* Create the variable. */ |
4982 | pushdecl (decl); | |
8b7e5587 | 4983 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
4984 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
4985 | && sym->fn_result_spec)); | |
df4d540f | 4986 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
b2c4af5e | 4987 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4988 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4989 | |
4990 | /* Also add length of strings. */ | |
4991 | if (sym->ts.type == BT_CHARACTER) | |
4992 | { | |
4993 | tree length; | |
4994 | ||
eeebe20b | 4995 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4996 | gcc_assert (length || sym->attr.proc_pointer); |
4997 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4998 | { |
4999 | pushdecl (length); | |
b2c4af5e | 5000 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 5001 | } |
5002 | } | |
a961ca30 | 5003 | |
5004 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
5005 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5006 | has_coarray_vars = true; | |
4ee9c684 | 5007 | } |
5008 | ||
51d9479b | 5009 | /* Emit debug information for USE statements. */ |
df4d540f | 5010 | |
5011 | static void | |
5012 | gfc_trans_use_stmts (gfc_namespace * ns) | |
5013 | { | |
5014 | gfc_use_list *use_stmt; | |
5015 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
5016 | { | |
5017 | struct module_htab_entry *entry | |
5018 | = gfc_find_module (use_stmt->module_name); | |
5019 | gfc_use_rename *rent; | |
5020 | ||
5021 | if (entry->namespace_decl == NULL) | |
5022 | { | |
5023 | entry->namespace_decl | |
e60a6f7b | 5024 | = build_decl (input_location, |
5025 | NAMESPACE_DECL, | |
df4d540f | 5026 | get_identifier (use_stmt->module_name), |
5027 | void_type_node); | |
5028 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
5029 | } | |
51d9479b | 5030 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 5031 | if (!use_stmt->only_flag) |
5032 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
5033 | NULL_TREE, | |
5034 | ns->proc_name->backend_decl, | |
41d01e67 | 5035 | false, false); |
df4d540f | 5036 | for (rent = use_stmt->rename; rent; rent = rent->next) |
5037 | { | |
5038 | tree decl, local_name; | |
df4d540f | 5039 | |
5040 | if (rent->op != INTRINSIC_NONE) | |
5041 | continue; | |
5042 | ||
2ef51f0e | 5043 | hashval_t hash = htab_hash_string (rent->use_name); |
5044 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
5045 | INSERT); | |
df4d540f | 5046 | if (*slot == NULL) |
5047 | { | |
5048 | gfc_symtree *st; | |
5049 | ||
5050 | st = gfc_find_symtree (ns->sym_root, | |
5051 | rent->local_name[0] | |
5052 | ? rent->local_name : rent->use_name); | |
c2958b6b | 5053 | |
5054 | /* The following can happen if a derived type is renamed. */ | |
5055 | if (!st) | |
5056 | { | |
5057 | char *name; | |
5058 | name = xstrdup (rent->local_name[0] | |
5059 | ? rent->local_name : rent->use_name); | |
5060 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
5061 | st = gfc_find_symtree (ns->sym_root, name); | |
5062 | free (name); | |
5063 | gcc_assert (st); | |
5064 | } | |
857c96ba | 5065 | |
5066 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
5067 | local symbol (see PR41062). */ | |
5068 | if (!st->n.sym->attr.use_assoc) | |
5069 | continue; | |
5070 | ||
51d9479b | 5071 | if (st->n.sym->backend_decl |
5072 | && DECL_P (st->n.sym->backend_decl) | |
5073 | && st->n.sym->module | |
5074 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 5075 | { |
51d9479b | 5076 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
fe732a9b | 5077 | || !VAR_P (st->n.sym->backend_decl)); |
df4d540f | 5078 | decl = copy_node (st->n.sym->backend_decl); |
5079 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5080 | DECL_EXTERNAL (decl) = 1; | |
5081 | DECL_IGNORED_P (decl) = 0; | |
5082 | DECL_INITIAL (decl) = NULL_TREE; | |
5083 | } | |
c40a5c1b | 5084 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
5085 | && st->n.sym->attr.use_only | |
5086 | && st->n.sym->module | |
5087 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
5088 | == 0) | |
5089 | { | |
5090 | decl = generate_namelist_decl (st->n.sym); | |
5091 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5092 | DECL_EXTERNAL (decl) = 1; | |
5093 | DECL_IGNORED_P (decl) = 0; | |
5094 | DECL_INITIAL (decl) = NULL_TREE; | |
5095 | } | |
df4d540f | 5096 | else |
5097 | { | |
5098 | *slot = error_mark_node; | |
2ef51f0e | 5099 | entry->decls->clear_slot (slot); |
df4d540f | 5100 | continue; |
5101 | } | |
5102 | *slot = decl; | |
5103 | } | |
5104 | decl = (tree) *slot; | |
5105 | if (rent->local_name[0]) | |
5106 | local_name = get_identifier (rent->local_name); | |
5107 | else | |
5108 | local_name = NULL_TREE; | |
51d9479b | 5109 | gfc_set_backend_locus (&rent->where); |
df4d540f | 5110 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
5111 | ns->proc_name->backend_decl, | |
41d01e67 | 5112 | !use_stmt->only_flag, |
5113 | false); | |
df4d540f | 5114 | } |
5115 | } | |
4ee9c684 | 5116 | } |
5117 | ||
51d9479b | 5118 | |
2eb674c9 | 5119 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
5120 | will handle. */ | |
5121 | ||
5122 | static bool | |
5123 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
5124 | bool pointer) | |
5125 | { | |
5126 | gfc_constructor *c; | |
5127 | gfc_component *cm; | |
5128 | ||
5129 | if (pointer) | |
5130 | return true; | |
5131 | else if (array) | |
5132 | { | |
5133 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
5134 | return true; | |
5135 | else if (expr->expr_type == EXPR_STRUCTURE) | |
5136 | return check_constant_initializer (expr, ts, false, false); | |
5137 | else if (expr->expr_type != EXPR_ARRAY) | |
5138 | return false; | |
126387b5 | 5139 | for (c = gfc_constructor_first (expr->value.constructor); |
5140 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 5141 | { |
5142 | if (c->iterator) | |
5143 | return false; | |
5144 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
5145 | { | |
5146 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
5147 | return false; | |
5148 | } | |
5149 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
5150 | return false; | |
5151 | } | |
5152 | return true; | |
5153 | } | |
5154 | else switch (ts->type) | |
5155 | { | |
d7cd448a | 5156 | case_bt_struct: |
2eb674c9 | 5157 | if (expr->expr_type != EXPR_STRUCTURE) |
5158 | return false; | |
eeebe20b | 5159 | cm = expr->ts.u.derived->components; |
126387b5 | 5160 | for (c = gfc_constructor_first (expr->value.constructor); |
5161 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 5162 | { |
5163 | if (!c->expr || cm->attr.allocatable) | |
5164 | continue; | |
5165 | if (!check_constant_initializer (c->expr, &cm->ts, | |
5166 | cm->attr.dimension, | |
5167 | cm->attr.pointer)) | |
5168 | return false; | |
5169 | } | |
5170 | return true; | |
5171 | default: | |
5172 | return expr->expr_type == EXPR_CONSTANT; | |
5173 | } | |
5174 | } | |
5175 | ||
5176 | /* Emit debug info for parameters and unreferenced variables with | |
5177 | initializers. */ | |
5178 | ||
5179 | static void | |
5180 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
5181 | { | |
5182 | tree decl; | |
5183 | ||
5184 | if (sym->attr.flavor != FL_PARAMETER | |
5185 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
5186 | return; | |
5187 | ||
5188 | if (sym->backend_decl != NULL | |
5189 | || sym->value == NULL | |
5190 | || sym->attr.use_assoc | |
5191 | || sym->attr.dummy | |
5192 | || sym->attr.result | |
5193 | || sym->attr.function | |
5194 | || sym->attr.intrinsic | |
5195 | || sym->attr.pointer | |
5196 | || sym->attr.allocatable | |
5197 | || sym->attr.cray_pointee | |
5198 | || sym->attr.threadprivate | |
5199 | || sym->attr.is_bind_c | |
5200 | || sym->attr.subref_array_pointer | |
5201 | || sym->attr.assign) | |
5202 | return; | |
5203 | ||
5204 | if (sym->ts.type == BT_CHARACTER) | |
5205 | { | |
eeebe20b | 5206 | gfc_conv_const_charlen (sym->ts.u.cl); |
5207 | if (sym->ts.u.cl->backend_decl == NULL | |
5208 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 5209 | return; |
5210 | } | |
eeebe20b | 5211 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 5212 | return; |
5213 | ||
5214 | if (sym->as) | |
5215 | { | |
5216 | int n; | |
5217 | ||
5218 | if (sym->as->type != AS_EXPLICIT) | |
5219 | return; | |
5220 | for (n = 0; n < sym->as->rank; n++) | |
5221 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5222 | || sym->as->upper[n] == NULL | |
5223 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5224 | return; | |
5225 | } | |
5226 | ||
5227 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5228 | sym->attr.dimension, false)) | |
5229 | return; | |
5230 | ||
4fe73152 | 5231 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 5232 | return; |
5233 | ||
2eb674c9 | 5234 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 5235 | decl = build_decl (input_location, |
5236 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 5237 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5238 | if (sym->attr.flavor == FL_PARAMETER) | |
5239 | TREE_READONLY (decl) = 1; | |
5240 | gfc_set_decl_location (decl, &sym->declared_at); | |
5241 | if (sym->attr.dimension) | |
5242 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5243 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5244 | TREE_STATIC (decl) = 1; | |
5245 | TREE_USED (decl) = 1; | |
5246 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5247 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 5248 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5249 | TREE_TYPE (decl), | |
5250 | sym->attr.dimension, | |
5251 | false, false); | |
3a1c9df2 | 5252 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 5253 | } |
5254 | ||
a961ca30 | 5255 | |
5256 | static void | |
5257 | generate_coarray_sym_init (gfc_symbol *sym) | |
5258 | { | |
eee0cf09 | 5259 | tree tmp, size, decl, token, desc; |
bd47f0bc | 5260 | bool is_lock_type, is_event_type; |
498b946e | 5261 | int reg_type; |
eee0cf09 | 5262 | gfc_se se; |
5263 | symbol_attribute attr; | |
a961ca30 | 5264 | |
5265 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 5266 | || sym->attr.use_assoc || !sym->attr.referenced |
5267 | || sym->attr.select_type_temporary) | |
a961ca30 | 5268 | return; |
5269 | ||
5270 | decl = sym->backend_decl; | |
5271 | TREE_USED(decl) = 1; | |
5272 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5273 | ||
498b946e | 5274 | is_lock_type = sym->ts.type == BT_DERIVED |
5275 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5276 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5277 | ||
bd47f0bc | 5278 | is_event_type = sym->ts.type == BT_DERIVED |
5279 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5280 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5281 | ||
a961ca30 | 5282 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5283 | to make sure the variable is not optimized away. */ | |
5284 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5285 | ||
498b946e | 5286 | /* For lock types, we pass the array size as only the library knows the |
5287 | size of the variable. */ | |
bd47f0bc | 5288 | if (is_lock_type || is_event_type) |
498b946e | 5289 | size = gfc_index_one_node; |
5290 | else | |
5291 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 5292 | |
a90fe829 | 5293 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 5294 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5295 | fold_convert (size_type_node, size), | |
5296 | build_int_cst (size_type_node, 1)); | |
5297 | ||
a961ca30 | 5298 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5299 | { | |
5300 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5301 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 5302 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 5303 | } |
5304 | ||
5305 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5306 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5307 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 5308 | if (is_lock_type) |
5309 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 5310 | else if (is_event_type) |
5311 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 5312 | else |
5313 | reg_type = GFC_CAF_COARRAY_STATIC; | |
eee0cf09 | 5314 | |
f991680c | 5315 | /* Compile the symbol attribute. */ |
5316 | if (sym->ts.type == BT_CLASS) | |
5317 | { | |
5318 | attr = CLASS_DATA (sym)->attr; | |
5319 | /* The pointer attribute is always set on classes, overwrite it with the | |
5320 | class_pointer attribute, which denotes the pointer for classes. */ | |
5321 | attr.pointer = attr.class_pointer; | |
5322 | } | |
5323 | else | |
5324 | attr = sym->attr; | |
eee0cf09 | 5325 | gfc_init_se (&se, NULL); |
5326 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5327 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5328 | ||
5329 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
498b946e | 5330 | build_int_cst (integer_type_node, reg_type), |
eee0cf09 | 5331 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5332 | null_pointer_node, /* stat. */ | |
3d2aa0e8 | 5333 | null_pointer_node, /* errgmsg. */ |
5e04a38a | 5334 | build_zero_cst (size_type_node)); /* errmsg_len. */ |
eee0cf09 | 5335 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5336 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5337 | gfc_conv_descriptor_data_get (desc))); | |
a961ca30 | 5338 | |
a961ca30 | 5339 | /* Handle "static" initializer. */ |
5340 | if (sym->value) | |
5341 | { | |
5342 | sym->attr.pointer = 1; | |
5343 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5344 | true, false); | |
5345 | sym->attr.pointer = 0; | |
5346 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5347 | } | |
942ef29d | 5348 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp) |
5349 | { | |
5350 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as | |
5351 | ? sym->as->rank : 0, | |
5352 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY); | |
5353 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5354 | } | |
a961ca30 | 5355 | } |
5356 | ||
5357 | ||
5358 | /* Generate constructor function to initialize static, nonallocatable | |
5359 | coarrays. */ | |
5360 | ||
5361 | static void | |
5362 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5363 | { | |
5364 | tree fndecl, tmp, decl, save_fn_decl; | |
5365 | ||
5366 | save_fn_decl = current_function_decl; | |
5367 | push_function_context (); | |
5368 | ||
5369 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5370 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5371 | create_tmp_var_name ("_caf_init"), tmp); | |
5372 | ||
5373 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5374 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5375 | ||
5376 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5377 | DECL_ARTIFICIAL (decl) = 1; | |
5378 | DECL_IGNORED_P (decl) = 1; | |
5379 | DECL_CONTEXT (decl) = fndecl; | |
5380 | DECL_RESULT (fndecl) = decl; | |
5381 | ||
5382 | pushdecl (fndecl); | |
5383 | current_function_decl = fndecl; | |
5384 | announce_function (fndecl); | |
5385 | ||
5386 | rest_of_decl_compilation (fndecl, 0, 0); | |
5387 | make_decl_rtl (fndecl); | |
00cf115c | 5388 | allocate_struct_function (fndecl, false); |
a961ca30 | 5389 | |
cde2be84 | 5390 | pushlevel (); |
a961ca30 | 5391 | gfc_init_block (&caf_init_block); |
5392 | ||
5393 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5394 | ||
5395 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5396 | decl = getdecls (); | |
5397 | ||
cde2be84 | 5398 | poplevel (1, 1); |
a961ca30 | 5399 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5400 | ||
5401 | DECL_SAVED_TREE (fndecl) | |
5402 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5403 | DECL_INITIAL (fndecl)); | |
5404 | dump_function (TDI_original, fndecl); | |
5405 | ||
5406 | cfun->function_end_locus = input_location; | |
5407 | set_cfun (NULL); | |
5408 | ||
5409 | if (decl_function_context (fndecl)) | |
415d1b9a | 5410 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5411 | else |
35ee1c66 | 5412 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5413 | |
5414 | pop_function_context (); | |
5415 | current_function_decl = save_fn_decl; | |
5416 | } | |
5417 | ||
5418 | ||
c40a5c1b | 5419 | static void |
5420 | create_module_nml_decl (gfc_symbol *sym) | |
5421 | { | |
5422 | if (sym->attr.flavor == FL_NAMELIST) | |
5423 | { | |
5424 | tree decl = generate_namelist_decl (sym); | |
5425 | pushdecl (decl); | |
5426 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5427 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5428 | rest_of_decl_compilation (decl, 1, 0); | |
5429 | gfc_module_add_decl (cur_module, decl); | |
5430 | } | |
5431 | } | |
5432 | ||
5433 | ||
51d9479b | 5434 | /* Generate all the required code for module variables. */ |
5435 | ||
5436 | void | |
5437 | gfc_generate_module_vars (gfc_namespace * ns) | |
5438 | { | |
5439 | module_namespace = ns; | |
5440 | cur_module = gfc_find_module (ns->proc_name->name); | |
5441 | ||
5442 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5443 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5444 | ||
5445 | /* Generate COMMON blocks. */ | |
5446 | gfc_trans_common (ns); | |
5447 | ||
a961ca30 | 5448 | has_coarray_vars = false; |
5449 | ||
51d9479b | 5450 | /* Create decls for all the module variables. */ |
5451 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5452 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5453 | |
4fe73152 | 5454 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5455 | generate_coarray_init (ns); |
5456 | ||
51d9479b | 5457 | cur_module = NULL; |
5458 | ||
5459 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5460 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5461 | } |
5462 | ||
5463 | ||
4ee9c684 | 5464 | static void |
5465 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5466 | { | |
5467 | gfc_namespace *ns; | |
5468 | ||
5469 | /* We create all the prototypes before generating any code. */ | |
5470 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5471 | { | |
5472 | /* Skip namespaces from used modules. */ | |
5473 | if (ns->parent != parent) | |
5474 | continue; | |
5475 | ||
d896f9b3 | 5476 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5477 | } |
5478 | ||
5479 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5480 | { | |
5481 | /* Skip namespaces from used modules. */ | |
5482 | if (ns->parent != parent) | |
5483 | continue; | |
5484 | ||
5485 | gfc_generate_function_code (ns); | |
5486 | } | |
5487 | } | |
5488 | ||
5489 | ||
d95efb59 | 5490 | /* Drill down through expressions for the array specification bounds and |
5491 | character length calling generate_local_decl for all those variables | |
5492 | that have not already been declared. */ | |
5493 | ||
5494 | static void | |
5495 | generate_local_decl (gfc_symbol *); | |
5496 | ||
1acb400a | 5497 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5498 | |
1acb400a | 5499 | static bool |
5500 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5501 | int *f ATTRIBUTE_UNUSED) | |
5502 | { | |
5503 | if (e->expr_type != EXPR_VARIABLE | |
5504 | || sym == e->symtree->n.sym | |
d95efb59 | 5505 | || e->symtree->n.sym->mark |
5506 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5507 | return false; |
d95efb59 | 5508 | |
1acb400a | 5509 | generate_local_decl (e->symtree->n.sym); |
5510 | return false; | |
5511 | } | |
d95efb59 | 5512 | |
1acb400a | 5513 | static void |
5514 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5515 | { | |
5516 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5517 | } |
5518 | ||
5519 | ||
f6d0e37a | 5520 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5521 | |
5522 | static void | |
5523 | generate_dependency_declarations (gfc_symbol *sym) | |
5524 | { | |
5525 | int i; | |
5526 | ||
5527 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5528 | && sym->ts.u.cl |
5529 | && sym->ts.u.cl->length | |
5530 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5531 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5532 | |
5533 | if (sym->as && sym->as->rank) | |
5534 | { | |
5535 | for (i = 0; i < sym->as->rank; i++) | |
5536 | { | |
5537 | generate_expr_decls (sym, sym->as->lower[i]); | |
5538 | generate_expr_decls (sym, sym->as->upper[i]); | |
5539 | } | |
5540 | } | |
5541 | } | |
5542 | ||
5543 | ||
4ee9c684 | 5544 | /* Generate decls for all local variables. We do this to ensure correct |
5545 | handling of expressions which only appear in the specification of | |
5546 | other functions. */ | |
5547 | ||
5548 | static void | |
5549 | generate_local_decl (gfc_symbol * sym) | |
5550 | { | |
5551 | if (sym->attr.flavor == FL_VARIABLE) | |
5552 | { | |
a961ca30 | 5553 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5554 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5555 | has_coarray_vars = true; | |
5556 | ||
d95efb59 | 5557 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5558 | generate_dependency_declarations (sym); |
d95efb59 | 5559 | |
4ee9c684 | 5560 | if (sym->attr.referenced) |
8714fc76 | 5561 | gfc_get_symbol_decl (sym); |
4acad347 | 5562 | |
5563 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5564 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5565 | { |
4acad347 | 5566 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5567 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5568 | { |
5569 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5570 | gfc_warning (OPT_Wunused_dummy_argument, |
5571 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5572 | "INTENT(OUT) but was not set", sym->name, |
5573 | &sym->declared_at); | |
48cb4748 | 5574 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5575 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5576 | gfc_warning (OPT_Wunused_dummy_argument, |
5577 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5578 | "declared INTENT(OUT) but was not set and " |
5579 | "does not have a default initializer", | |
5580 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5581 | if (sym->backend_decl != NULL_TREE) |
5582 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5583 | } |
8290d53f | 5584 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5585 | { |
4166acc7 | 5586 | gfc_warning (OPT_Wunused_dummy_argument, |
5587 | "Unused dummy argument %qs at %L", sym->name, | |
5588 | &sym->declared_at); | |
90a4a5a6 | 5589 | if (sym->backend_decl != NULL_TREE) |
5590 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5591 | } | |
7c0ca46e | 5592 | } |
4acad347 | 5593 | |
f888a3fb | 5594 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5595 | block or a namelist. */ |
36609028 | 5596 | else if (warn_unused_variable |
1dbfac29 | 5597 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5598 | { |
1dbfac29 | 5599 | if (sym->attr.use_only) |
5600 | { | |
4166acc7 | 5601 | gfc_warning (OPT_Wunused_variable, |
5602 | "Unused module variable %qs which has been " | |
1dbfac29 | 5603 | "explicitly imported at %L", sym->name, |
5604 | &sym->declared_at); | |
5605 | if (sym->backend_decl != NULL_TREE) | |
5606 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5607 | } | |
5608 | else if (!sym->attr.use_assoc) | |
5609 | { | |
99af6e70 | 5610 | /* Corner case: the symbol may be an entry point. At this point, |
5611 | it may appear to be an unused variable. Suppress warning. */ | |
5612 | bool enter = false; | |
5613 | gfc_entry_list *el; | |
5614 | ||
5615 | for (el = sym->ns->entries; el; el=el->next) | |
5616 | if (strcmp(sym->name, el->sym->name) == 0) | |
5617 | enter = true; | |
5618 | ||
5619 | if (!enter) | |
5620 | gfc_warning (OPT_Wunused_variable, | |
5621 | "Unused variable %qs declared at %L", | |
5622 | sym->name, &sym->declared_at); | |
1dbfac29 | 5623 | if (sym->backend_decl != NULL_TREE) |
5624 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5625 | } | |
90a4a5a6 | 5626 | } |
8714fc76 | 5627 | |
d4163395 | 5628 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5629 | references the length variable, so force gfc_get_symbol_decl | |
5630 | even when not referenced. If optimize > 0, it will be optimized | |
5631 | away anyway. But do this only after emitting -Wunused-parameter | |
5632 | warning if requested. */ | |
8714fc76 | 5633 | if (sym->attr.dummy && !sym->attr.referenced |
5634 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5635 | && sym->ts.u.cl->backend_decl != NULL |
fe732a9b | 5636 | && VAR_P (sym->ts.u.cl->backend_decl)) |
d4163395 | 5637 | { |
5638 | sym->attr.referenced = 1; | |
5639 | gfc_get_symbol_decl (sym); | |
5640 | } | |
76776e6d | 5641 | |
d0163401 | 5642 | /* INTENT(out) dummy arguments and result variables with allocatable |
5643 | components are reset by default and need to be set referenced to | |
5644 | generate the code for nullification and automatic lengths. */ | |
5645 | if (!sym->attr.referenced | |
8714fc76 | 5646 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5647 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5648 | && !sym->attr.pointer |
d0163401 | 5649 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5650 | || | |
5651 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5652 | { |
5653 | sym->attr.referenced = 1; | |
5654 | gfc_get_symbol_decl (sym); | |
5655 | } | |
5656 | ||
e72f979a | 5657 | /* Check for dependencies in the array specification and string |
5658 | length, adding the necessary declarations to the function. We | |
5659 | mark the symbol now, as well as in traverse_ns, to prevent | |
5660 | getting stuck in a circular dependency. */ | |
5661 | sym->mark = 1; | |
4ee9c684 | 5662 | } |
5dd246c1 | 5663 | else if (sym->attr.flavor == FL_PARAMETER) |
5664 | { | |
6ecfe89d | 5665 | if (warn_unused_parameter |
f326eb81 | 5666 | && !sym->attr.referenced) |
5667 | { | |
5668 | if (!sym->attr.use_assoc) | |
4166acc7 | 5669 | gfc_warning (OPT_Wunused_parameter, |
5670 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5671 | &sym->declared_at); |
5672 | else if (sym->attr.use_only) | |
4166acc7 | 5673 | gfc_warning (OPT_Wunused_parameter, |
5674 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5675 | "imported at %L", sym->name, &sym->declared_at); |
5676 | } | |
758c9897 | 5677 | |
5678 | if (sym->ns | |
5679 | && sym->ns->parent | |
5680 | && sym->ns->parent->code | |
5681 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5682 | { | |
5683 | if (sym->attr.referenced) | |
5684 | gfc_get_symbol_decl (sym); | |
5685 | sym->mark = 1; | |
5686 | } | |
5dd246c1 | 5687 | } |
fa7b6574 | 5688 | else if (sym->attr.flavor == FL_PROCEDURE) |
5689 | { | |
5690 | /* TODO: move to the appropriate place in resolve.c. */ | |
8b72061f | 5691 | if (warn_return_type > 0 |
fa7b6574 | 5692 | && sym->attr.function |
5693 | && sym->result | |
5694 | && sym != sym->result | |
5695 | && !sym->result->attr.referenced | |
5696 | && !sym->attr.use_assoc | |
5697 | && sym->attr.if_source != IFSRC_IFBODY) | |
5698 | { | |
4166acc7 | 5699 | gfc_warning (OPT_Wreturn_type, |
5700 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5701 | "%L not set", sym->result->name, sym->name, |
5702 | &sym->result->declared_at); | |
5703 | ||
5704 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5705 | sym->result->mark = 1; |
fa7b6574 | 5706 | } |
5707 | } | |
c5d33754 | 5708 | |
19ba2ad8 | 5709 | if (sym->attr.dummy == 1) |
5710 | { | |
5711 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5712 | procedures if they are passed by value. The tree type for them will | |
5713 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5714 | what C would do with characters passed by-value. The value attribute | |
5715 | implies the dummy is a scalar. */ | |
5716 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5717 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5718 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5719 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5720 | |
5721 | /* Unused procedure passed as dummy argument. */ | |
5722 | if (sym->attr.flavor == FL_PROCEDURE) | |
5723 | { | |
5724 | if (!sym->attr.referenced) | |
5725 | { | |
8290d53f | 5726 | if (warn_unused_dummy_argument) |
4166acc7 | 5727 | gfc_warning (OPT_Wunused_dummy_argument, |
5728 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5729 | &sym->declared_at); |
fc6338c7 | 5730 | } |
5731 | ||
5732 | /* Silence bogus "unused parameter" warnings from the | |
5733 | middle end. */ | |
5734 | if (sym->backend_decl != NULL_TREE) | |
5735 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5736 | } | |
19ba2ad8 | 5737 | } |
5738 | ||
c5d33754 | 5739 | /* Make sure we convert the types of the derived types from iso_c_binding |
5740 | into (void *). */ | |
5741 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5742 | && sym->ts.type == BT_DERIVED) | |
5743 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5744 | } |
5745 | ||
c40a5c1b | 5746 | |
5747 | static void | |
5748 | generate_local_nml_decl (gfc_symbol * sym) | |
5749 | { | |
5750 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5751 | { | |
5752 | tree decl = generate_namelist_decl (sym); | |
5753 | pushdecl (decl); | |
5754 | } | |
5755 | } | |
5756 | ||
5757 | ||
4ee9c684 | 5758 | static void |
5759 | generate_local_vars (gfc_namespace * ns) | |
5760 | { | |
5761 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5762 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5763 | } |
5764 | ||
5765 | ||
1b716045 | 5766 | /* Generate a switch statement to jump to the correct entry point. Also |
5767 | creates the label decls for the entry points. */ | |
4ee9c684 | 5768 | |
1b716045 | 5769 | static tree |
5770 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5771 | { |
1b716045 | 5772 | stmtblock_t block; |
5773 | tree label; | |
5774 | tree tmp; | |
5775 | tree val; | |
4ee9c684 | 5776 | |
1b716045 | 5777 | gfc_init_block (&block); |
5778 | for (; el; el = el->next) | |
5779 | { | |
5780 | /* Add the case label. */ | |
b797d6d3 | 5781 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5782 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5783 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5784 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5785 | |
1b716045 | 5786 | /* And jump to the actual entry point. */ |
5787 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5788 | tmp = build1_v (GOTO_EXPR, label); |
5789 | gfc_add_expr_to_block (&block, tmp); | |
5790 | ||
5791 | /* Save the label decl. */ | |
5792 | el->label = label; | |
5793 | } | |
5794 | tmp = gfc_finish_block (&block); | |
5795 | /* The first argument selects the entry point. */ | |
5796 | val = DECL_ARGUMENTS (current_function_decl); | |
bd37ce3e | 5797 | tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp); |
1b716045 | 5798 | return tmp; |
4ee9c684 | 5799 | } |
5800 | ||
6374121b | 5801 | |
a4abf8a0 | 5802 | /* Add code to string lengths of actual arguments passed to a function against |
5803 | the expected lengths of the dummy arguments. */ | |
5804 | ||
5805 | static void | |
5806 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5807 | { | |
5808 | gfc_formal_arglist *formal; | |
5809 | ||
6777213b | 5810 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5811 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5812 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5813 | { |
5814 | enum tree_code comparison; | |
5815 | tree cond; | |
5816 | tree argname; | |
5817 | gfc_symbol *fsym; | |
5818 | gfc_charlen *cl; | |
5819 | const char *message; | |
5820 | ||
5821 | fsym = formal->sym; | |
eeebe20b | 5822 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5823 | |
5824 | gcc_assert (cl); | |
5825 | gcc_assert (cl->passed_length != NULL_TREE); | |
5826 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5827 | ||
5828 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5829 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5830 | that the actual string length is *at least* the expected one. |
5831 | Sequence association allows for a mismatch of the string length | |
5832 | if the actual argument is (part of) an array, but only if the | |
5833 | dummy argument is an array. (See "Sequence association" in | |
5834 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5835 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5836 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5837 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5838 | { |
5839 | comparison = NE_EXPR; | |
5840 | message = _("Actual string length does not match the declared one" | |
5841 | " for dummy argument '%s' (%ld/%ld)"); | |
5842 | } | |
be4be771 | 5843 | else if (fsym->as && fsym->as->rank != 0) |
5844 | continue; | |
a4abf8a0 | 5845 | else |
5846 | { | |
5847 | comparison = LT_EXPR; | |
5848 | message = _("Actual string length is shorter than the declared one" | |
5849 | " for dummy argument '%s' (%ld/%ld)"); | |
5850 | } | |
5851 | ||
5852 | /* Build the condition. For optional arguments, an actual length | |
5853 | of 0 is also acceptable if the associated string is NULL, which | |
5854 | means the argument was not passed. */ | |
4c796f54 | 5855 | cond = fold_build2_loc (input_location, comparison, logical_type_node, |
fd779e1d | 5856 | cl->passed_length, cl->backend_decl); |
a4abf8a0 | 5857 | if (fsym->attr.optional) |
5858 | { | |
5859 | tree not_absent; | |
5860 | tree not_0length; | |
5861 | tree absent_failed; | |
5862 | ||
fd779e1d | 5863 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4c796f54 | 5864 | logical_type_node, |
fd779e1d | 5865 | cl->passed_length, |
9f4d9f83 | 5866 | build_zero_cst |
5867 | (TREE_TYPE (cl->passed_length))); | |
5fa0fdc2 | 5868 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5869 | fsym->attr.referenced = 1; | |
5870 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5871 | |
fd779e1d | 5872 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4c796f54 | 5873 | logical_type_node, not_0length, |
fd779e1d | 5874 | not_absent); |
a4abf8a0 | 5875 | |
fd779e1d | 5876 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4c796f54 | 5877 | logical_type_node, cond, absent_failed); |
a4abf8a0 | 5878 | } |
5879 | ||
5880 | /* Build the runtime check. */ | |
5881 | argname = gfc_build_cstring_const (fsym->name); | |
5882 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5883 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5884 | message, argname, | |
5885 | fold_convert (long_integer_type_node, | |
5886 | cl->passed_length), | |
5887 | fold_convert (long_integer_type_node, | |
5888 | cl->backend_decl)); | |
5889 | } | |
5890 | } | |
5891 | ||
5892 | ||
7257a5d2 | 5893 | static void |
5894 | create_main_function (tree fndecl) | |
5895 | { | |
43702da6 | 5896 | tree old_context; |
7257a5d2 | 5897 | tree ftn_main; |
5898 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5899 | stmtblock_t body; | |
5900 | ||
43702da6 | 5901 | old_context = current_function_decl; |
5902 | ||
5903 | if (old_context) | |
5904 | { | |
5905 | push_function_context (); | |
5906 | saved_parent_function_decls = saved_function_decls; | |
5907 | saved_function_decls = NULL_TREE; | |
5908 | } | |
5909 | ||
7257a5d2 | 5910 | /* main() function must be declared with global scope. */ |
5911 | gcc_assert (current_function_decl == NULL_TREE); | |
5912 | ||
5913 | /* Declare the function. */ | |
5914 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5915 | build_pointer_type (pchar_type_node), | |
5916 | NULL_TREE); | |
0509d0ee | 5917 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5918 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5919 | main_identifier_node, tmp); | |
7257a5d2 | 5920 | DECL_EXTERNAL (ftn_main) = 0; |
5921 | TREE_PUBLIC (ftn_main) = 1; | |
5922 | TREE_STATIC (ftn_main) = 1; | |
5923 | DECL_ATTRIBUTES (ftn_main) | |
5924 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5925 | ||
5926 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5927 | result_decl = build_decl (input_location, |
5928 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5929 | DECL_ARTIFICIAL (result_decl) = 1; |
5930 | DECL_IGNORED_P (result_decl) = 1; | |
5931 | DECL_CONTEXT (result_decl) = ftn_main; | |
5932 | DECL_RESULT (ftn_main) = result_decl; | |
5933 | ||
5934 | pushdecl (ftn_main); | |
5935 | ||
5936 | /* Get the arguments. */ | |
5937 | ||
5938 | arglist = NULL_TREE; | |
5939 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5940 | ||
5941 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5942 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5943 | DECL_CONTEXT (argc) = ftn_main; |
5944 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5945 | TREE_READONLY (argc) = 1; | |
5946 | gfc_finish_decl (argc); | |
5947 | arglist = chainon (arglist, argc); | |
5948 | ||
5949 | typelist = TREE_CHAIN (typelist); | |
5950 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5951 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5952 | DECL_CONTEXT (argv) = ftn_main; |
5953 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5954 | TREE_READONLY (argv) = 1; | |
5955 | DECL_BY_REFERENCE (argv) = 1; | |
5956 | gfc_finish_decl (argv); | |
5957 | arglist = chainon (arglist, argv); | |
5958 | ||
5959 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5960 | current_function_decl = ftn_main; | |
5961 | announce_function (ftn_main); | |
5962 | ||
5963 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5964 | make_decl_rtl (ftn_main); | |
00cf115c | 5965 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5966 | pushlevel (); |
7257a5d2 | 5967 | |
5968 | gfc_init_block (&body); | |
5969 | ||
293d72e0 | 5970 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5971 | |
d44f2f7c | 5972 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5973 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5974 | { |
5975 | tree pint_type, pppchar_type; | |
5976 | pint_type = build_pointer_type (integer_type_node); | |
5977 | pppchar_type | |
5978 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5979 | ||
d44f2f7c | 5980 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5981 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5982 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5983 | gfc_add_expr_to_block (&body, tmp); |
5984 | } | |
5985 | ||
7257a5d2 | 5986 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5987 | TREE_USED (argc) = 1; |
5988 | TREE_USED (argv) = 1; | |
389dd41b | 5989 | tmp = build_call_expr_loc (input_location, |
5990 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5991 | gfc_add_expr_to_block (&body, tmp); |
5992 | ||
5993 | /* Add a call to set_options to set up the runtime library Fortran | |
5994 | language standard parameters. */ | |
5995 | { | |
5996 | tree array_type, array, var; | |
f1f41a6c | 5997 | vec<constructor_elt, va_gc> *v = NULL; |
f7619ded | 5998 | static const int noptions = 7; |
7257a5d2 | 5999 | |
f7619ded | 6000 | /* Passing a new option to the library requires three modifications: |
6001 | + add it to the tree_cons list below | |
6002 | + change the noptions variable above | |
7257a5d2 | 6003 | + modify the library (runtime/compile_options.c)! */ |
6004 | ||
06f13dc1 | 6005 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6006 | build_int_cst (integer_type_node, | |
6007 | gfc_option.warn_std)); | |
6008 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6009 | build_int_cst (integer_type_node, | |
6010 | gfc_option.allow_std)); | |
6011 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6012 | build_int_cst (integer_type_node, pedantic)); | |
06f13dc1 | 6013 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 6014 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 6015 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 6016 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 6017 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6018 | build_int_cst (integer_type_node, | |
6019 | (gfc_option.rtcheck | |
6020 | & GFC_RTCHECK_BOUNDS))); | |
6021 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6022 | build_int_cst (integer_type_node, | |
553e7cef | 6023 | gfc_option.fpe_summary)); |
7257a5d2 | 6024 | |
f7619ded | 6025 | array_type = build_array_type_nelts (integer_type_node, noptions); |
06f13dc1 | 6026 | array = build_constructor (array_type, v); |
7257a5d2 | 6027 | TREE_CONSTANT (array) = 1; |
6028 | TREE_STATIC (array) = 1; | |
6029 | ||
6030 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 6031 | var = build_decl (input_location, VAR_DECL, |
f7619ded | 6032 | create_tmp_var_name ("options"), array_type); |
bf77f8ee | 6033 | DECL_ARTIFICIAL (var) = 1; |
6034 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 6035 | TREE_CONSTANT (var) = 1; |
6036 | TREE_STATIC (var) = 1; | |
6037 | TREE_READONLY (var) = 1; | |
6038 | DECL_INITIAL (var) = array; | |
bf77f8ee | 6039 | pushdecl (var); |
7257a5d2 | 6040 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
6041 | ||
389dd41b | 6042 | tmp = build_call_expr_loc (input_location, |
6043 | gfor_fndecl_set_options, 2, | |
f7619ded | 6044 | build_int_cst (integer_type_node, noptions), var); |
7257a5d2 | 6045 | gfc_add_expr_to_block (&body, tmp); |
6046 | } | |
6047 | ||
6048 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
6049 | the library will raise a FPE when needed. */ | |
6050 | if (gfc_option.fpe != 0) | |
6051 | { | |
389dd41b | 6052 | tmp = build_call_expr_loc (input_location, |
6053 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 6054 | build_int_cst (integer_type_node, |
6055 | gfc_option.fpe)); | |
6056 | gfc_add_expr_to_block (&body, tmp); | |
6057 | } | |
6058 | ||
6059 | /* If this is the main program and an -fconvert option was provided, | |
6060 | add a call to set_convert. */ | |
6061 | ||
4fe73152 | 6062 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 6063 | { |
389dd41b | 6064 | tmp = build_call_expr_loc (input_location, |
6065 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 6066 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 6067 | gfc_add_expr_to_block (&body, tmp); |
6068 | } | |
6069 | ||
6070 | /* If this is the main program and an -frecord-marker option was provided, | |
6071 | add a call to set_record_marker. */ | |
6072 | ||
eb106faf | 6073 | if (flag_record_marker != 0) |
7257a5d2 | 6074 | { |
389dd41b | 6075 | tmp = build_call_expr_loc (input_location, |
6076 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 6077 | build_int_cst (integer_type_node, |
eb106faf | 6078 | flag_record_marker)); |
7257a5d2 | 6079 | gfc_add_expr_to_block (&body, tmp); |
6080 | } | |
6081 | ||
eb106faf | 6082 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 6083 | { |
389dd41b | 6084 | tmp = build_call_expr_loc (input_location, |
6085 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 6086 | build_int_cst (integer_type_node, |
eb106faf | 6087 | flag_max_subrecord_length)); |
7257a5d2 | 6088 | gfc_add_expr_to_block (&body, tmp); |
6089 | } | |
6090 | ||
6091 | /* Call MAIN__(). */ | |
389dd41b | 6092 | tmp = build_call_expr_loc (input_location, |
6093 | fndecl, 0); | |
7257a5d2 | 6094 | gfc_add_expr_to_block (&body, tmp); |
6095 | ||
43702da6 | 6096 | /* Mark MAIN__ as used. */ |
6097 | TREE_USED (fndecl) = 1; | |
6098 | ||
70b5944a | 6099 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 6100 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 6101 | { |
70b5944a | 6102 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
6103 | gfc_add_expr_to_block (&body, tmp); | |
6104 | } | |
6105 | ||
7257a5d2 | 6106 | /* "return 0". */ |
fd779e1d | 6107 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
6108 | DECL_RESULT (ftn_main), | |
6109 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 6110 | tmp = build1_v (RETURN_EXPR, tmp); |
6111 | gfc_add_expr_to_block (&body, tmp); | |
6112 | ||
6113 | ||
6114 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
6115 | decl = getdecls (); | |
6116 | ||
6117 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6118 | poplevel (1, 1); |
7257a5d2 | 6119 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
6120 | ||
6121 | DECL_SAVED_TREE (ftn_main) | |
6122 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
6123 | DECL_INITIAL (ftn_main)); | |
6124 | ||
6125 | /* Output the GENERIC tree. */ | |
6126 | dump_function (TDI_original, ftn_main); | |
6127 | ||
35ee1c66 | 6128 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 6129 | |
6130 | if (old_context) | |
6131 | { | |
6132 | pop_function_context (); | |
6133 | saved_function_decls = saved_parent_function_decls; | |
6134 | } | |
6135 | current_function_decl = old_context; | |
7257a5d2 | 6136 | } |
6137 | ||
6138 | ||
89ac8ba1 | 6139 | /* Generate an appropriate return-statement for a procedure. */ |
6140 | ||
6141 | tree | |
6142 | gfc_generate_return (void) | |
6143 | { | |
6144 | gfc_symbol* sym; | |
6145 | tree result; | |
6146 | tree fndecl; | |
6147 | ||
6148 | sym = current_procedure_symbol; | |
6149 | fndecl = sym->backend_decl; | |
6150 | ||
6151 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
6152 | result = NULL_TREE; | |
6153 | else | |
6154 | { | |
6155 | result = get_proc_result (sym); | |
6156 | ||
6157 | /* Set the return value to the dummy result variable. The | |
6158 | types may be different for scalar default REAL functions | |
6159 | with -ff2c, therefore we have to convert. */ | |
6160 | if (result != NULL_TREE) | |
6161 | { | |
6162 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 6163 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
6164 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
6165 | result); | |
89ac8ba1 | 6166 | } |
6167 | } | |
6168 | ||
6169 | return build1_v (RETURN_EXPR, result); | |
6170 | } | |
6171 | ||
6172 | ||
d566c3e0 | 6173 | static void |
6174 | is_from_ieee_module (gfc_symbol *sym) | |
6175 | { | |
6176 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6177 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6178 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6179 | seen_ieee_symbol = 1; | |
6180 | } | |
6181 | ||
6182 | ||
6183 | static int | |
6184 | is_ieee_module_used (gfc_namespace *ns) | |
6185 | { | |
6186 | seen_ieee_symbol = 0; | |
6187 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6188 | return seen_ieee_symbol; | |
6189 | } | |
6190 | ||
6191 | ||
01d728a4 | 6192 | static gfc_omp_clauses *module_oacc_clauses; |
6193 | ||
6194 | ||
6195 | static void | |
6196 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6197 | { | |
6198 | gfc_omp_namelist *n; | |
6199 | ||
6200 | n = gfc_get_omp_namelist (); | |
6201 | n->sym = sym; | |
6202 | n->u.map_op = map_op; | |
6203 | ||
6204 | if (!module_oacc_clauses) | |
6205 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6206 | ||
6207 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6208 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6209 | ||
6210 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6211 | } | |
6212 | ||
6213 | ||
6214 | static void | |
6215 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6216 | { | |
6217 | if (sym->attr.use_assoc) | |
6218 | { | |
6219 | gfc_omp_map_op map_op; | |
6220 | ||
6221 | if (sym->attr.oacc_declare_create) | |
6222 | map_op = OMP_MAP_FORCE_ALLOC; | |
6223 | ||
6224 | if (sym->attr.oacc_declare_copyin) | |
6225 | map_op = OMP_MAP_FORCE_TO; | |
6226 | ||
6227 | if (sym->attr.oacc_declare_deviceptr) | |
6228 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6229 | ||
6230 | if (sym->attr.oacc_declare_device_resident) | |
6231 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6232 | ||
6233 | if (sym->attr.oacc_declare_create | |
6234 | || sym->attr.oacc_declare_copyin | |
6235 | || sym->attr.oacc_declare_deviceptr | |
6236 | || sym->attr.oacc_declare_device_resident) | |
6237 | { | |
6238 | sym->attr.referenced = 1; | |
6239 | add_clause (sym, map_op); | |
6240 | } | |
6241 | } | |
6242 | } | |
6243 | ||
6244 | ||
6245 | void | |
6246 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6247 | { | |
6248 | gfc_code *code; | |
6249 | gfc_oacc_declare *oc; | |
6250 | locus where = gfc_current_locus; | |
6251 | gfc_omp_clauses *omp_clauses = NULL; | |
6252 | gfc_omp_namelist *n, *p; | |
6253 | ||
6254 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6255 | ||
6256 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6257 | { | |
6258 | gfc_oacc_declare *new_oc; | |
6259 | ||
6260 | new_oc = gfc_get_oacc_declare (); | |
6261 | new_oc->next = ns->oacc_declare; | |
6262 | new_oc->clauses = module_oacc_clauses; | |
6263 | ||
6264 | ns->oacc_declare = new_oc; | |
6265 | module_oacc_clauses = NULL; | |
6266 | } | |
6267 | ||
6268 | if (!ns->oacc_declare) | |
6269 | return; | |
6270 | ||
6271 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6272 | { | |
6273 | if (oc->module_var) | |
6274 | continue; | |
6275 | ||
6276 | if (block) | |
f187ad6c | 6277 | gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed " |
01d728a4 | 6278 | "in BLOCK construct", &oc->loc); |
6279 | ||
6280 | ||
6281 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6282 | { | |
6283 | if (omp_clauses == NULL) | |
6284 | { | |
6285 | omp_clauses = oc->clauses; | |
6286 | continue; | |
6287 | } | |
6288 | ||
6289 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6290 | ; | |
6291 | ||
6292 | gcc_assert (p->next == NULL); | |
6293 | ||
6294 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6295 | omp_clauses = oc->clauses; | |
6296 | } | |
6297 | } | |
6298 | ||
6299 | if (!omp_clauses) | |
6300 | return; | |
6301 | ||
6302 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6303 | { | |
6304 | switch (n->u.map_op) | |
6305 | { | |
6306 | case OMP_MAP_DEVICE_RESIDENT: | |
6307 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6308 | break; | |
6309 | ||
6310 | default: | |
6311 | break; | |
6312 | } | |
6313 | } | |
6314 | ||
6315 | code = XCNEW (gfc_code); | |
6316 | code->op = EXEC_OACC_DECLARE; | |
6317 | code->loc = where; | |
6318 | ||
6319 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6320 | code->ext.oacc_declare->clauses = omp_clauses; | |
6321 | ||
6322 | code->block = XCNEW (gfc_code); | |
6323 | code->block->op = EXEC_OACC_DECLARE; | |
6324 | code->block->loc = where; | |
6325 | ||
6326 | if (ns->code) | |
6327 | code->block->next = ns->code; | |
6328 | ||
6329 | ns->code = code; | |
6330 | ||
6331 | return; | |
6332 | } | |
6333 | ||
6334 | ||
4ee9c684 | 6335 | /* Generate code for a function. */ |
6336 | ||
6337 | void | |
6338 | gfc_generate_function_code (gfc_namespace * ns) | |
6339 | { | |
6340 | tree fndecl; | |
6341 | tree old_context; | |
6342 | tree decl; | |
6343 | tree tmp; | |
d566c3e0 | 6344 | tree fpstate = NULL_TREE; |
89ac8ba1 | 6345 | stmtblock_t init, cleanup; |
4ee9c684 | 6346 | stmtblock_t body; |
89ac8ba1 | 6347 | gfc_wrapped_block try_block; |
5fa0fdc2 | 6348 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 6349 | gfc_symbol *sym; |
89ac8ba1 | 6350 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 6351 | int rank, ieee; |
e50e62f5 | 6352 | bool is_recursive; |
4ee9c684 | 6353 | |
6354 | sym = ns->proc_name; | |
89ac8ba1 | 6355 | previous_procedure_symbol = current_procedure_symbol; |
6356 | current_procedure_symbol = sym; | |
1b716045 | 6357 | |
8b7e5587 | 6358 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6359 | lost or worse. */ | |
4ee9c684 | 6360 | sym->tlink = sym; |
6361 | ||
6362 | /* Create the declaration for functions with global scope. */ | |
6363 | if (!sym->backend_decl) | |
d896f9b3 | 6364 | gfc_create_function_decl (ns, false); |
4ee9c684 | 6365 | |
6366 | fndecl = sym->backend_decl; | |
6367 | old_context = current_function_decl; | |
6368 | ||
6369 | if (old_context) | |
6370 | { | |
6371 | push_function_context (); | |
6372 | saved_parent_function_decls = saved_function_decls; | |
6373 | saved_function_decls = NULL_TREE; | |
6374 | } | |
6375 | ||
1b716045 | 6376 | trans_function_start (sym); |
4ee9c684 | 6377 | |
89ac8ba1 | 6378 | gfc_init_block (&init); |
4ee9c684 | 6379 | |
c6871095 | 6380 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6381 | { | |
6382 | /* Copy length backend_decls to all entry point result | |
6383 | symbols. */ | |
6384 | gfc_entry_list *el; | |
6385 | tree backend_decl; | |
6386 | ||
eeebe20b | 6387 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6388 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6389 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6390 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6391 | } |
6392 | ||
4ee9c684 | 6393 | /* Translate COMMON blocks. */ |
6394 | gfc_trans_common (ns); | |
6395 | ||
c750cc52 | 6396 | /* Null the parent fake result declaration if this namespace is |
6397 | a module function or an external procedures. */ | |
6398 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6399 | || ns->parent == NULL) | |
6400 | parent_fake_result_decl = NULL_TREE; | |
6401 | ||
2b685f8e | 6402 | gfc_generate_contained_functions (ns); |
6403 | ||
a961ca30 | 6404 | has_coarray_vars = false; |
4ee9c684 | 6405 | generate_local_vars (ns); |
5b11d932 | 6406 | |
4fe73152 | 6407 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6408 | generate_coarray_init (ns); |
6409 | ||
c750cc52 | 6410 | /* Keep the parent fake result declaration in module functions |
6411 | or external procedures. */ | |
6412 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6413 | || ns->parent == NULL) | |
6414 | current_fake_result_decl = parent_fake_result_decl; | |
6415 | else | |
6416 | current_fake_result_decl = NULL_TREE; | |
6417 | ||
89ac8ba1 | 6418 | is_recursive = sym->attr.recursive |
6419 | || (sym->attr.entry_master | |
6420 | && sym->ns->entries->sym->attr.recursive); | |
6421 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6422 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6423 | { |
6424 | char * msg; | |
6425 | ||
87fda26c | 6426 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6427 | sym->name); | |
4c796f54 | 6428 | recurcheckvar = gfc_create_var (logical_type_node, "is_recursive"); |
89ac8ba1 | 6429 | TREE_STATIC (recurcheckvar) = 1; |
4c796f54 | 6430 | DECL_INITIAL (recurcheckvar) = logical_false_node; |
89ac8ba1 | 6431 | gfc_add_expr_to_block (&init, recurcheckvar); |
6432 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6433 | &sym->declared_at, msg); | |
4c796f54 | 6434 | gfc_add_modify (&init, recurcheckvar, logical_true_node); |
434f0922 | 6435 | free (msg); |
89ac8ba1 | 6436 | } |
4ee9c684 | 6437 | |
d566c3e0 | 6438 | /* Check if an IEEE module is used in the procedure. If so, save |
6439 | the floating point state. */ | |
6440 | ieee = is_ieee_module_used (ns); | |
6441 | if (ieee) | |
d7333535 | 6442 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6443 | |
4ee9c684 | 6444 | /* Now generate the code for the body of this function. */ |
6445 | gfc_init_block (&body); | |
6446 | ||
6447 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6448 | && sym->attr.subroutine) |
4ee9c684 | 6449 | { |
6450 | tree alternate_return; | |
c750cc52 | 6451 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6452 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6453 | } |
6454 | ||
1b716045 | 6455 | if (ns->entries) |
6456 | { | |
6457 | /* Jump to the correct entry point. */ | |
6458 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6459 | gfc_add_expr_to_block (&body, tmp); | |
6460 | } | |
6461 | ||
a4abf8a0 | 6462 | /* If bounds-checking is enabled, generate code to check passed in actual |
6463 | arguments against the expected dummy argument attributes (e.g. string | |
6464 | lengths). */ | |
c1630d65 | 6465 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6466 | add_argument_checking (&body, sym); |
6467 | ||
01d728a4 | 6468 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6469 | |
4ee9c684 | 6470 | tmp = gfc_trans_code (ns->code); |
6471 | gfc_add_expr_to_block (&body, tmp); | |
6472 | ||
1caa6ab1 | 6473 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6474 | || (sym->result && sym->result != sym | |
6475 | && sym->result->ts.type == BT_DERIVED | |
6476 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6477 | { |
1caa6ab1 | 6478 | bool artificial_result_decl = false; |
89ac8ba1 | 6479 | tree result = get_proc_result (sym); |
1caa6ab1 | 6480 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6481 | ||
6482 | /* Make sure that a function returning an object with | |
6483 | alloc/pointer_components always has a result, where at least | |
6484 | the allocatable/pointer components are set to zero. */ | |
6485 | if (result == NULL_TREE && sym->attr.function | |
6486 | && ((sym->result->ts.type == BT_DERIVED | |
6487 | && (sym->attr.allocatable | |
6488 | || sym->attr.pointer | |
6489 | || sym->result->ts.u.derived->attr.alloc_comp | |
6490 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6491 | || (sym->result->ts.type == BT_CLASS | |
6492 | && (CLASS_DATA (sym)->attr.allocatable | |
6493 | || CLASS_DATA (sym)->attr.class_pointer | |
6494 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6495 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6496 | { | |
6497 | artificial_result_decl = true; | |
6498 | result = gfc_get_fake_result_decl (sym, 0); | |
6499 | } | |
4ee9c684 | 6500 | |
42766cb3 | 6501 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6502 | { |
deb7edfc | 6503 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6504 | && sym->result == sym) | |
6505 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6506 | null_pointer_node)); | |
42766cb3 | 6507 | else if (sym->ts.type == BT_CLASS |
6508 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6509 | && CLASS_DATA (sym)->attr.dimension == 0 |
6510 | && sym->result == sym) | |
42766cb3 | 6511 | { |
6512 | tmp = CLASS_DATA (sym)->backend_decl; | |
6513 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6514 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6515 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6516 | null_pointer_node)); | |
6517 | } | |
deb7edfc | 6518 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6519 | && !sym->attr.allocatable) |
53169279 | 6520 | { |
1caa6ab1 | 6521 | gfc_expr *init_exp; |
6522 | /* Arrays are not initialized using the default initializer of | |
6523 | their elements. Therefore only check if a default | |
6524 | initializer is available when the result is scalar. */ | |
36d310d0 | 6525 | init_exp = rsym->as ? NULL |
6526 | : gfc_generate_initializer (&rsym->ts, true); | |
1caa6ab1 | 6527 | if (init_exp) |
6528 | { | |
6529 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6530 | gfc_free_expr (init_exp); | |
6531 | gfc_add_expr_to_block (&init, tmp); | |
6532 | } | |
6533 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6534 | { | |
6535 | rank = rsym->as ? rsym->as->rank : 0; | |
6536 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6537 | rank); | |
6538 | gfc_prepend_expr_to_block (&body, tmp); | |
6539 | } | |
53169279 | 6540 | } |
5176859a | 6541 | } |
e50e62f5 | 6542 | |
1caa6ab1 | 6543 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6544 | { |
6545 | /* TODO: move to the appropriate place in resolve.c. */ | |
8b72061f | 6546 | if (warn_return_type > 0 && sym == sym->result) |
4166acc7 | 6547 | gfc_warning (OPT_Wreturn_type, |
6548 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6549 | sym->name, &sym->declared_at); |
8b72061f | 6550 | if (warn_return_type > 0) |
90a4a5a6 | 6551 | TREE_NO_WARNING(sym->backend_decl) = 1; |
fa7b6574 | 6552 | } |
1caa6ab1 | 6553 | if (result != NULL_TREE) |
89ac8ba1 | 6554 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6555 | } |
89ac8ba1 | 6556 | |
6557 | gfc_init_block (&cleanup); | |
6558 | ||
6559 | /* Reset recursion-check variable. */ | |
6560 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6561 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6562 | { |
4c796f54 | 6563 | gfc_add_modify (&cleanup, recurcheckvar, logical_false_node); |
89ac8ba1 | 6564 | recurcheckvar = NULL; |
e50e62f5 | 6565 | } |
2294b616 | 6566 | |
d566c3e0 | 6567 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6568 | if (ieee) | |
d7333535 | 6569 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6570 | |
89ac8ba1 | 6571 | /* Finish the function body and add init and cleanup code. */ |
6572 | tmp = gfc_finish_block (&body); | |
6573 | gfc_start_wrapped_block (&try_block, tmp); | |
6574 | /* Add code to create and cleanup arrays. */ | |
6575 | gfc_trans_deferred_vars (sym, &try_block); | |
6576 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6577 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6578 | |
6579 | /* Add all the decls we created during processing. */ | |
267f3c67 | 6580 | decl = nreverse (saved_function_decls); |
4ee9c684 | 6581 | while (decl) |
6582 | { | |
6583 | tree next; | |
6584 | ||
1767a056 | 6585 | next = DECL_CHAIN (decl); |
6586 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6587 | pushdecl (decl); |
4ee9c684 | 6588 | decl = next; |
6589 | } | |
6590 | saved_function_decls = NULL_TREE; | |
6591 | ||
89ac8ba1 | 6592 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6593 | decl = getdecls (); |
4ee9c684 | 6594 | |
6595 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6596 | poplevel (1, 1); |
4ee9c684 | 6597 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6598 | ||
e5004242 | 6599 | DECL_SAVED_TREE (fndecl) |
6600 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6601 | DECL_INITIAL (fndecl)); | |
6602 | ||
4ee9c684 | 6603 | /* Output the GENERIC tree. */ |
6604 | dump_function (TDI_original, fndecl); | |
6605 | ||
6606 | /* Store the end of the function, so that we get good line number | |
6607 | info for the epilogue. */ | |
6608 | cfun->function_end_locus = input_location; | |
6609 | ||
6610 | /* We're leaving the context of this function, so zap cfun. | |
6611 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6612 | tree_rest_of_compilation. */ | |
87d4aa85 | 6613 | set_cfun (NULL); |
4ee9c684 | 6614 | |
6615 | if (old_context) | |
6616 | { | |
6617 | pop_function_context (); | |
6618 | saved_function_decls = saved_parent_function_decls; | |
6619 | } | |
6620 | current_function_decl = old_context; | |
6621 | ||
1f7747bd | 6622 | if (decl_function_context (fndecl)) |
6623 | { | |
6624 | /* Register this function with cgraph just far enough to get it | |
6625 | added to our parent's nested function list. | |
6626 | If there are static coarrays in this function, the nested _caf_init | |
6627 | function has already called cgraph_create_node, which also created | |
6628 | the cgraph node for this function. */ | |
4fe73152 | 6629 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
0d565f19 | 6630 | (void) cgraph_node::get_create (fndecl); |
1f7747bd | 6631 | } |
4ee9c684 | 6632 | else |
35ee1c66 | 6633 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6634 | |
6635 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6636 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6637 | |
6638 | if (sym->attr.is_main_program) | |
6639 | create_main_function (fndecl); | |
89ac8ba1 | 6640 | |
6641 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6642 | } |
6643 | ||
7257a5d2 | 6644 | |
4ee9c684 | 6645 | void |
6646 | gfc_generate_constructors (void) | |
6647 | { | |
22d678e8 | 6648 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6649 | #if 0 |
6650 | tree fnname; | |
6651 | tree type; | |
6652 | tree fndecl; | |
6653 | tree decl; | |
6654 | tree tmp; | |
6655 | ||
6656 | if (gfc_static_ctors == NULL_TREE) | |
6657 | return; | |
6658 | ||
db85cc4f | 6659 | fnname = get_file_function_name ("I"); |
e1036019 | 6660 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6661 | |
e60a6f7b | 6662 | fndecl = build_decl (input_location, |
6663 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6664 | TREE_PUBLIC (fndecl) = 1; |
6665 | ||
e60a6f7b | 6666 | decl = build_decl (input_location, |
6667 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6668 | DECL_ARTIFICIAL (decl) = 1; |
6669 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6670 | DECL_CONTEXT (decl) = fndecl; |
6671 | DECL_RESULT (fndecl) = decl; | |
6672 | ||
6673 | pushdecl (fndecl); | |
6674 | ||
6675 | current_function_decl = fndecl; | |
6676 | ||
b2c4af5e | 6677 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6678 | |
b2c4af5e | 6679 | make_decl_rtl (fndecl); |
4ee9c684 | 6680 | |
00cf115c | 6681 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6682 | |
cde2be84 | 6683 | pushlevel (); |
4ee9c684 | 6684 | |
6685 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6686 | { | |
389dd41b | 6687 | tmp = build_call_expr_loc (input_location, |
6688 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6689 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6690 | } |
6691 | ||
e5004242 | 6692 | decl = getdecls (); |
cde2be84 | 6693 | poplevel (1, 1); |
4ee9c684 | 6694 | |
6695 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6696 | DECL_SAVED_TREE (fndecl) |
6697 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6698 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6699 | |
6700 | free_after_parsing (cfun); | |
6701 | free_after_compilation (cfun); | |
6702 | ||
6148a911 | 6703 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6704 | |
6705 | current_function_decl = NULL_TREE; | |
6706 | #endif | |
6707 | } | |
6708 | ||
9ec7c303 | 6709 | /* Translates a BLOCK DATA program unit. This means emitting the |
6710 | commons contained therein plus their initializations. We also emit | |
6711 | a globally visible symbol to make sure that each BLOCK DATA program | |
6712 | unit remains unique. */ | |
6713 | ||
6714 | void | |
6715 | gfc_generate_block_data (gfc_namespace * ns) | |
6716 | { | |
6717 | tree decl; | |
6718 | tree id; | |
6719 | ||
b31f705b | 6720 | /* Tell the backend the source location of the block data. */ |
6721 | if (ns->proc_name) | |
6722 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6723 | else | |
6724 | gfc_set_backend_locus (&gfc_current_locus); | |
6725 | ||
6726 | /* Process the DATA statements. */ | |
9ec7c303 | 6727 | gfc_trans_common (ns); |
6728 | ||
b31f705b | 6729 | /* Create a global symbol with the mane of the block data. This is to |
6730 | generate linker errors if the same name is used twice. It is never | |
6731 | really used. */ | |
9ec7c303 | 6732 | if (ns->proc_name) |
6733 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6734 | else | |
6735 | id = get_identifier ("__BLOCK_DATA__"); | |
6736 | ||
e60a6f7b | 6737 | decl = build_decl (input_location, |
6738 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6739 | TREE_PUBLIC (decl) = 1; |
6740 | TREE_STATIC (decl) = 1; | |
df4d540f | 6741 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6742 | |
6743 | pushdecl (decl); | |
6744 | rest_of_decl_compilation (decl, 1, 0); | |
6745 | } | |
6746 | ||
b549d2a5 | 6747 | |
6a7084d7 | 6748 | /* Process the local variables of a BLOCK construct. */ |
6749 | ||
6750 | void | |
3c82e013 | 6751 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6752 | { |
6753 | tree decl; | |
6754 | ||
672bd2da | 6755 | saved_local_decls = NULL_TREE; |
a961ca30 | 6756 | has_coarray_vars = false; |
6757 | ||
6a7084d7 | 6758 | generate_local_vars (ns); |
6759 | ||
4fe73152 | 6760 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6761 | generate_coarray_init (ns); |
6762 | ||
267f3c67 | 6763 | decl = nreverse (saved_local_decls); |
6a7084d7 | 6764 | while (decl) |
6765 | { | |
6766 | tree next; | |
6767 | ||
1767a056 | 6768 | next = DECL_CHAIN (decl); |
6769 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6770 | pushdecl (decl); |
6771 | decl = next; | |
6772 | } | |
6773 | saved_local_decls = NULL_TREE; | |
6774 | } | |
6775 | ||
6776 | ||
4ee9c684 | 6777 | #include "gt-fortran-trans-decl.h" |