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4ee9c684 | 1 | /* Backend function setup |
f1717362 | 2 | Copyright (C) 2002-2016 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" | |
4ee9c684 | 38 | #include "tree-dump.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" |
4ee9c684 | 48 | |
49 | #define MAX_LABEL_VALUE 99999 | |
50 | ||
51 | ||
52 | /* Holds the result of the function if no result variable specified. */ | |
53 | ||
54 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 55 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 56 | |
4ee9c684 | 57 | |
58 | /* Holds the variable DECLs for the current function. */ | |
59 | ||
d4163395 | 60 | static GTY(()) tree saved_function_decls; |
61 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 62 | |
431205b7 | 63 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
9579733e | 64 | static GTY(()) tree nonlocal_dummy_decls; |
4ee9c684 | 65 | |
6a7084d7 | 66 | /* Holds the variable DECLs that are locals. */ |
67 | ||
68 | static GTY(()) tree saved_local_decls; | |
69 | ||
4ee9c684 | 70 | /* The namespace of the module we're currently generating. Only used while |
71 | outputting decls for module variables. Do not rely on this being set. */ | |
72 | ||
73 | static gfc_namespace *module_namespace; | |
74 | ||
89ac8ba1 | 75 | /* The currently processed procedure symbol. */ |
76 | static gfc_symbol* current_procedure_symbol = NULL; | |
77 | ||
3adf245a | 78 | /* The currently processed module. */ |
79 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 80 | |
a961ca30 | 81 | /* With -fcoarray=lib: For generating the registering call |
82 | of static coarrays. */ | |
83 | static bool has_coarray_vars; | |
84 | static stmtblock_t caf_init_block; | |
85 | ||
86 | ||
4ee9c684 | 87 | /* List of static constructor functions. */ |
88 | ||
89 | tree gfc_static_ctors; | |
90 | ||
91 | ||
d566c3e0 | 92 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
93 | static int seen_ieee_symbol; | |
94 | ||
4ee9c684 | 95 | /* Function declarations for builtin library functions. */ |
96 | ||
4ee9c684 | 97 | tree gfor_fndecl_pause_numeric; |
98 | tree gfor_fndecl_pause_string; | |
99 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 100 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 101 | tree gfor_fndecl_stop_string; |
070cc790 | 102 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 103 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 104 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 105 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 106 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 107 | tree gfor_fndecl_os_error; |
50ad5fa2 | 108 | tree gfor_fndecl_generate_error; |
7257a5d2 | 109 | tree gfor_fndecl_set_args; |
8c84a5de | 110 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 111 | tree gfor_fndecl_set_options; |
15774a8b | 112 | tree gfor_fndecl_set_convert; |
f23886ab | 113 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 114 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 115 | tree gfor_fndecl_ctime; |
116 | tree gfor_fndecl_fdate; | |
dbc97b88 | 117 | tree gfor_fndecl_ttynam; |
4ee9c684 | 118 | tree gfor_fndecl_in_pack; |
119 | tree gfor_fndecl_in_unpack; | |
120 | tree gfor_fndecl_associated; | |
72ce5390 | 121 | tree gfor_fndecl_system_clock4; |
122 | tree gfor_fndecl_system_clock8; | |
d566c3e0 | 123 | tree gfor_fndecl_ieee_procedure_entry; |
124 | tree gfor_fndecl_ieee_procedure_exit; | |
4ee9c684 | 125 | |
126 | ||
70b5944a | 127 | /* Coarray run-time library function decls. */ |
128 | tree gfor_fndecl_caf_init; | |
129 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 130 | tree gfor_fndecl_caf_this_image; |
131 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 132 | tree gfor_fndecl_caf_register; |
d0d776fb | 133 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 134 | tree gfor_fndecl_caf_get; |
135 | tree gfor_fndecl_caf_send; | |
136 | tree gfor_fndecl_caf_sendget; | |
70b5944a | 137 | tree gfor_fndecl_caf_sync_all; |
71cf3ae6 | 138 | tree gfor_fndecl_caf_sync_memory; |
70b5944a | 139 | tree gfor_fndecl_caf_sync_images; |
ba4d9b7e | 140 | tree gfor_fndecl_caf_stop_str; |
141 | tree gfor_fndecl_caf_stop_numeric; | |
70b5944a | 142 | tree gfor_fndecl_caf_error_stop; |
143 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 144 | tree gfor_fndecl_caf_atomic_def; |
145 | tree gfor_fndecl_caf_atomic_ref; | |
146 | tree gfor_fndecl_caf_atomic_cas; | |
147 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 148 | tree gfor_fndecl_caf_lock; |
149 | tree gfor_fndecl_caf_unlock; | |
bd47f0bc | 150 | tree gfor_fndecl_caf_event_post; |
151 | tree gfor_fndecl_caf_event_wait; | |
152 | tree gfor_fndecl_caf_event_query; | |
52306a18 | 153 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 154 | tree gfor_fndecl_co_max; |
155 | tree gfor_fndecl_co_min; | |
e39efcef | 156 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 157 | tree gfor_fndecl_co_sum; |
70b5944a | 158 | |
70b5944a | 159 | |
4ee9c684 | 160 | /* Math functions. Many other math functions are handled in |
161 | trans-intrinsic.c. */ | |
162 | ||
920e54ef | 163 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 164 | tree gfor_fndecl_math_ishftc4; |
165 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 166 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 167 | |
168 | ||
169 | /* String functions. */ | |
170 | ||
4ee9c684 | 171 | tree gfor_fndecl_compare_string; |
172 | tree gfor_fndecl_concat_string; | |
173 | tree gfor_fndecl_string_len_trim; | |
174 | tree gfor_fndecl_string_index; | |
175 | tree gfor_fndecl_string_scan; | |
176 | tree gfor_fndecl_string_verify; | |
177 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 178 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 179 | tree gfor_fndecl_adjustl; |
180 | tree gfor_fndecl_adjustr; | |
b44437b9 | 181 | tree gfor_fndecl_select_string; |
40b806de | 182 | tree gfor_fndecl_compare_string_char4; |
183 | tree gfor_fndecl_concat_string_char4; | |
184 | tree gfor_fndecl_string_len_trim_char4; | |
185 | tree gfor_fndecl_string_index_char4; | |
186 | tree gfor_fndecl_string_scan_char4; | |
187 | tree gfor_fndecl_string_verify_char4; | |
188 | tree gfor_fndecl_string_trim_char4; | |
189 | tree gfor_fndecl_string_minmax_char4; | |
190 | tree gfor_fndecl_adjustl_char4; | |
191 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 192 | tree gfor_fndecl_select_string_char4; |
193 | ||
194 | ||
195 | /* Conversion between character kinds. */ | |
196 | tree gfor_fndecl_convert_char1_to_char4; | |
197 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 198 | |
199 | ||
200 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 201 | tree gfor_fndecl_size0; |
202 | tree gfor_fndecl_size1; | |
9b057c29 | 203 | tree gfor_fndecl_iargc; |
4ee9c684 | 204 | |
59e2a584 | 205 | /* Intrinsic functions implemented in Fortran. */ |
206 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 207 | tree gfor_fndecl_si_kind; |
208 | tree gfor_fndecl_sr_kind; | |
209 | ||
4e8e57b0 | 210 | /* BLAS gemm functions. */ |
211 | tree gfor_fndecl_sgemm; | |
212 | tree gfor_fndecl_dgemm; | |
213 | tree gfor_fndecl_cgemm; | |
214 | tree gfor_fndecl_zgemm; | |
215 | ||
4ee9c684 | 216 | |
217 | static void | |
218 | gfc_add_decl_to_parent_function (tree decl) | |
219 | { | |
22d678e8 | 220 | gcc_assert (decl); |
4ee9c684 | 221 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
222 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 223 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 224 | saved_parent_function_decls = decl; |
225 | } | |
226 | ||
227 | void | |
228 | gfc_add_decl_to_function (tree decl) | |
229 | { | |
22d678e8 | 230 | gcc_assert (decl); |
4ee9c684 | 231 | TREE_USED (decl) = 1; |
232 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 233 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 234 | saved_function_decls = decl; |
235 | } | |
236 | ||
6a7084d7 | 237 | static void |
238 | add_decl_as_local (tree decl) | |
239 | { | |
240 | gcc_assert (decl); | |
241 | TREE_USED (decl) = 1; | |
242 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 243 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 244 | saved_local_decls = decl; |
245 | } | |
246 | ||
4ee9c684 | 247 | |
b797d6d3 | 248 | /* Build a backend label declaration. Set TREE_USED for named labels. |
249 | The context of the label is always the current_function_decl. All | |
250 | labels are marked artificial. */ | |
4ee9c684 | 251 | |
252 | tree | |
253 | gfc_build_label_decl (tree label_id) | |
254 | { | |
255 | /* 2^32 temporaries should be enough. */ | |
256 | static unsigned int tmp_num = 1; | |
257 | tree label_decl; | |
258 | char *label_name; | |
259 | ||
260 | if (label_id == NULL_TREE) | |
261 | { | |
262 | /* Build an internal label name. */ | |
263 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
264 | label_id = get_identifier (label_name); | |
265 | } | |
266 | else | |
267 | label_name = NULL; | |
268 | ||
269 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 270 | label_decl = build_decl (input_location, |
271 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 272 | DECL_CONTEXT (label_decl) = current_function_decl; |
273 | DECL_MODE (label_decl) = VOIDmode; | |
274 | ||
b797d6d3 | 275 | /* We always define the label as used, even if the original source |
276 | file never references the label. We don't want all kinds of | |
277 | spurious warnings for old-style Fortran code with too many | |
278 | labels. */ | |
279 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 280 | |
b797d6d3 | 281 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 282 | return label_decl; |
283 | } | |
284 | ||
285 | ||
b31f705b | 286 | /* Set the backend source location of a decl. */ |
287 | ||
288 | void | |
289 | gfc_set_decl_location (tree decl, locus * loc) | |
290 | { | |
b31f705b | 291 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 292 | } |
293 | ||
294 | ||
4ee9c684 | 295 | /* Return the backend label declaration for a given label structure, |
296 | or create it if it doesn't exist yet. */ | |
297 | ||
298 | tree | |
299 | gfc_get_label_decl (gfc_st_label * lp) | |
300 | { | |
4ee9c684 | 301 | if (lp->backend_decl) |
302 | return lp->backend_decl; | |
303 | else | |
304 | { | |
305 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
306 | tree label_decl; | |
307 | ||
308 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 309 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 310 | |
311 | /* Build a mangled name for the label. */ | |
312 | sprintf (label_name, "__label_%.6d", lp->value); | |
313 | ||
314 | /* Build the LABEL_DECL node. */ | |
315 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
316 | ||
317 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 318 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 319 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 320 | else |
321 | DECL_ARTIFICIAL (label_decl) = 1; | |
322 | ||
323 | /* Store the label in the label list and return the LABEL_DECL. */ | |
324 | lp->backend_decl = label_decl; | |
325 | return label_decl; | |
326 | } | |
327 | } | |
328 | ||
329 | ||
330 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
331 | ||
332 | static tree | |
333 | gfc_sym_identifier (gfc_symbol * sym) | |
334 | { | |
0509d0ee | 335 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
336 | return (get_identifier ("MAIN__")); | |
337 | else | |
338 | return (get_identifier (sym->name)); | |
4ee9c684 | 339 | } |
340 | ||
341 | ||
342 | /* Construct mangled name from symbol name. */ | |
343 | ||
344 | static tree | |
345 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
346 | { | |
347 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
348 | ||
c5d33754 | 349 | /* Prevent the mangling of identifiers that have an assigned |
350 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 351 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
352 | return get_identifier (sym->binding_label); | |
a90fe829 | 353 | |
4f0fae8e | 354 | if (sym->module == NULL) |
4ee9c684 | 355 | return gfc_sym_identifier (sym); |
356 | else | |
357 | { | |
f08a3f6f | 358 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 359 | return get_identifier (name); |
360 | } | |
361 | } | |
362 | ||
363 | ||
364 | /* Construct mangled function name from symbol name. */ | |
365 | ||
366 | static tree | |
367 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
368 | { | |
369 | int has_underscore; | |
370 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
371 | ||
c5d33754 | 372 | /* It may be possible to simply use the binding label if it's |
373 | provided, and remove the other checks. Then we could use it | |
374 | for other things if we wished. */ | |
375 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 376 | sym->binding_label) |
c5d33754 | 377 | /* use the binding label rather than the mangled name */ |
378 | return get_identifier (sym->binding_label); | |
379 | ||
4b8eb6ca | 380 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 381 | || (sym->module != NULL && (sym->attr.external |
382 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 383 | && !sym->attr.module_procedure) |
4ee9c684 | 384 | { |
a2f97da7 | 385 | /* Main program is mangled into MAIN__. */ |
386 | if (sym->attr.is_main_program) | |
387 | return get_identifier ("MAIN__"); | |
388 | ||
389 | /* Intrinsic procedures are never mangled. */ | |
390 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 391 | return get_identifier (sym->name); |
392 | ||
829d7a08 | 393 | if (flag_underscoring) |
4ee9c684 | 394 | { |
395 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 396 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 397 | snprintf (name, sizeof name, "%s__", sym->name); |
398 | else | |
399 | snprintf (name, sizeof name, "%s_", sym->name); | |
400 | return get_identifier (name); | |
401 | } | |
402 | else | |
403 | return get_identifier (sym->name); | |
404 | } | |
405 | else | |
406 | { | |
f08a3f6f | 407 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 408 | return get_identifier (name); |
409 | } | |
410 | } | |
411 | ||
412 | ||
1236e28b | 413 | void |
414 | gfc_set_decl_assembler_name (tree decl, tree name) | |
415 | { | |
416 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
417 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
418 | } | |
419 | ||
420 | ||
5ed82495 | 421 | /* Returns true if a variable of specified size should go on the stack. */ |
422 | ||
423 | int | |
424 | gfc_can_put_var_on_stack (tree size) | |
425 | { | |
426 | unsigned HOST_WIDE_INT low; | |
427 | ||
428 | if (!INTEGER_CST_P (size)) | |
429 | return 0; | |
430 | ||
eb106faf | 431 | if (flag_max_stack_var_size < 0) |
5ed82495 | 432 | return 1; |
433 | ||
e1d65c9f | 434 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 435 | return 0; |
436 | ||
f9ae6f95 | 437 | low = TREE_INT_CST_LOW (size); |
eb106faf | 438 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 439 | return 0; |
440 | ||
441 | /* TODO: Set a per-function stack size limit. */ | |
442 | ||
443 | return 1; | |
444 | } | |
445 | ||
446 | ||
b7bf3f81 | 447 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
448 | an expression involving its corresponding pointer. There are | |
449 | 2 cases; one for variable size arrays, and one for everything else, | |
450 | because variable-sized arrays require one fewer level of | |
451 | indirection. */ | |
452 | ||
453 | static void | |
454 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
455 | { | |
456 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
457 | tree value; | |
458 | ||
459 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 460 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 461 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
462 | ptr_decl); | |
b7bf3f81 | 463 | |
464 | /* Check to see if we're dealing with a variable-sized array. */ | |
465 | if (sym->attr.dimension | |
a90fe829 | 466 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
467 | { | |
942043f8 | 468 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 469 | them here. */ |
470 | value = convert (TREE_TYPE (decl), ptr_decl); | |
471 | } | |
472 | else | |
473 | { | |
474 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
475 | ptr_decl); | |
389dd41b | 476 | value = build_fold_indirect_ref_loc (input_location, |
477 | ptr_decl); | |
b7bf3f81 | 478 | } |
479 | ||
480 | SET_DECL_VALUE_EXPR (decl, value); | |
481 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 482 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 483 | } |
484 | ||
485 | ||
b9c7fce7 | 486 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 487 | |
488 | static void | |
b9c7fce7 | 489 | gfc_finish_decl (tree decl) |
4ee9c684 | 490 | { |
b9c7fce7 | 491 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
492 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 493 | |
b9c7fce7 | 494 | if (TREE_CODE (decl) != VAR_DECL) |
495 | return; | |
4ee9c684 | 496 | |
b9c7fce7 | 497 | if (DECL_SIZE (decl) == NULL_TREE |
498 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
499 | layout_decl (decl, 0); | |
500 | ||
501 | /* A few consistency checks. */ | |
502 | /* A static variable with an incomplete type is an error if it is | |
503 | initialized. Also if it is not file scope. Otherwise, let it | |
504 | through, but if it is not `extern' then it may cause an error | |
505 | message later. */ | |
506 | /* An automatic variable with an incomplete type is an error. */ | |
507 | ||
508 | /* We should know the storage size. */ | |
509 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 510 | || (TREE_STATIC (decl) |
b9c7fce7 | 511 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
512 | : DECL_EXTERNAL (decl))); | |
513 | ||
514 | /* The storage size should be constant. */ | |
515 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
516 | || !DECL_SIZE (decl) | |
517 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 518 | } |
519 | ||
520 | ||
cf5f881f | 521 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
522 | ||
523 | void | |
524 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
525 | { | |
526 | if (!attr->dimension && !attr->codimension) | |
527 | { | |
528 | /* Handle scalar allocatable variables. */ | |
529 | if (attr->allocatable) | |
530 | { | |
531 | gfc_allocate_lang_decl (decl); | |
532 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
533 | } | |
534 | /* Handle scalar pointer variables. */ | |
535 | if (attr->pointer) | |
536 | { | |
537 | gfc_allocate_lang_decl (decl); | |
538 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
539 | } | |
540 | } | |
541 | } | |
542 | ||
543 | ||
4ee9c684 | 544 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
545 | ||
546 | static void | |
547 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
548 | { | |
c1977dbe | 549 | tree new_type; |
b549d2a5 | 550 | |
b7bf3f81 | 551 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 552 | if (sym->attr.cray_pointee) |
b7bf3f81 | 553 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 554 | |
845a9546 | 555 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
556 | This is the equivalent of the TARGET variables. | |
557 | We also need to set this if the variable is passed by reference in a | |
558 | CALL statement. */ | |
4ee9c684 | 559 | if (sym->attr.target) |
560 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 561 | |
4ee9c684 | 562 | /* If it wasn't used we wouldn't be getting it. */ |
563 | TREE_USED (decl) = 1; | |
564 | ||
7415cfe4 | 565 | if (sym->attr.flavor == FL_PARAMETER |
566 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
567 | TREE_READONLY (decl) = 1; | |
568 | ||
4ee9c684 | 569 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
570 | because this would add them to the current scope rather than the | |
571 | function scope. */ | |
572 | if (current_function_decl != NULL_TREE) | |
573 | { | |
7af6a4af | 574 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 575 | || sym->result == sym) |
4ee9c684 | 576 | gfc_add_decl_to_function (decl); |
6a7084d7 | 577 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
578 | /* This is a BLOCK construct. */ | |
579 | add_decl_as_local (decl); | |
4ee9c684 | 580 | else |
581 | gfc_add_decl_to_parent_function (decl); | |
582 | } | |
583 | ||
b7bf3f81 | 584 | if (sym->attr.cray_pointee) |
585 | return; | |
586 | ||
c5cb468c | 587 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 588 | { |
589 | /* We need to put variables that are bind(c) into the common | |
590 | segment of the object file, because this is what C would do. | |
591 | gfortran would typically put them in either the BSS or | |
592 | initialized data segments, and only mark them as common if | |
593 | they were part of common blocks. However, if they are not put | |
ea657963 | 594 | into common space, then C cannot initialize global Fortran |
c5d33754 | 595 | variables that it interoperates with and the draft says that |
596 | either Fortran or C should be able to initialize it (but not | |
597 | both, of course.) (J3/04-007, section 15.3). */ | |
598 | TREE_PUBLIC(decl) = 1; | |
599 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 600 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
601 | { | |
602 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
603 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
604 | } | |
c5d33754 | 605 | } |
a90fe829 | 606 | |
4ee9c684 | 607 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 608 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 609 | { |
610 | DECL_EXTERNAL (decl) = 1; | |
611 | TREE_PUBLIC (decl) = 1; | |
612 | } | |
4f0fae8e | 613 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 614 | { |
6b20224d | 615 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 616 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 617 | |
c8ddfd5d | 618 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 619 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 620 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
621 | { | |
622 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
623 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
624 | } | |
4ee9c684 | 625 | } |
626 | ||
f0d4969f | 627 | /* Derived types are a bit peculiar because of the possibility of |
628 | a default initializer; this must be applied each time the variable | |
629 | comes into scope it therefore need not be static. These variables | |
630 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 631 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 632 | SAVE_EXPLICIT. */ |
633 | if (!sym->attr.use_assoc | |
634 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 635 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 636 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 637 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 638 | TREE_STATIC (decl) = 1; |
ef814c81 | 639 | |
640 | if (sym->attr.volatile_) | |
641 | { | |
ef814c81 | 642 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 643 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 644 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
645 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 646 | } |
ef814c81 | 647 | |
4ee9c684 | 648 | /* Keep variables larger than max-stack-var-size off stack. */ |
649 | if (!sym->ns->proc_name->attr.recursive | |
650 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 651 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
652 | /* Put variable length auto array pointers always into stack. */ | |
653 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
654 | || sym->attr.dimension == 0 | |
655 | || sym->as->type != AS_EXPLICIT | |
656 | || sym->attr.pointer | |
657 | || sym->attr.allocatable) | |
658 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 659 | TREE_STATIC (decl) = 1; |
764f1175 | 660 | |
661 | /* Handle threadprivate variables. */ | |
9dda1f80 | 662 | if (sym->attr.threadprivate |
764f1175 | 663 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 664 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 665 | |
666 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 667 | } |
668 | ||
669 | ||
670 | /* Allocate the lang-specific part of a decl. */ | |
671 | ||
672 | void | |
673 | gfc_allocate_lang_decl (tree decl) | |
674 | { | |
cf5f881f | 675 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
676 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 677 | } |
678 | ||
679 | /* Remember a symbol to generate initialization/cleanup code at function | |
680 | entry/exit. */ | |
681 | ||
682 | static void | |
683 | gfc_defer_symbol_init (gfc_symbol * sym) | |
684 | { | |
685 | gfc_symbol *p; | |
686 | gfc_symbol *last; | |
687 | gfc_symbol *head; | |
688 | ||
689 | /* Don't add a symbol twice. */ | |
690 | if (sym->tlink) | |
691 | return; | |
692 | ||
693 | last = head = sym->ns->proc_name; | |
694 | p = last->tlink; | |
695 | ||
696 | /* Make sure that setup code for dummy variables which are used in the | |
697 | setup of other variables is generated first. */ | |
698 | if (sym->attr.dummy) | |
699 | { | |
700 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
701 | This is a circular list, so don't go past the head. */ | |
702 | while (p != head | |
703 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
704 | { | |
705 | last = p; | |
706 | p = p->tlink; | |
707 | } | |
708 | } | |
709 | /* Insert in between last and p. */ | |
710 | last->tlink = sym; | |
711 | sym->tlink = p; | |
712 | } | |
713 | ||
714 | ||
9f5a9ac5 | 715 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
716 | backend_decl for a module symbol, if it all ready exists. If the | |
717 | module gsymbol does not exist, it is created. If the symbol does | |
718 | not exist, it is added to the gsymbol namespace. Returns true if | |
719 | an existing backend_decl is found. */ | |
720 | ||
721 | bool | |
722 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
723 | { | |
724 | gfc_gsymbol *gsym; | |
725 | gfc_symbol *s; | |
726 | gfc_symtree *st; | |
727 | ||
728 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
729 | ||
730 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
731 | { | |
732 | st = NULL; | |
733 | s = NULL; | |
734 | ||
735 | if (gsym) | |
736 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
737 | ||
738 | if (!s) | |
739 | { | |
740 | if (!gsym) | |
741 | { | |
742 | gsym = gfc_get_gsymbol (sym->module); | |
743 | gsym->type = GSYM_MODULE; | |
744 | gsym->ns = gfc_get_namespace (NULL, 0); | |
745 | } | |
746 | ||
747 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
748 | st->n.sym = sym; | |
749 | sym->refs++; | |
750 | } | |
751 | else if (sym->attr.flavor == FL_DERIVED) | |
752 | { | |
c2958b6b | 753 | if (s && s->attr.flavor == FL_PROCEDURE) |
754 | { | |
755 | gfc_interface *intr; | |
756 | gcc_assert (s->attr.generic); | |
757 | for (intr = s->generic; intr; intr = intr->next) | |
758 | if (intr->sym->attr.flavor == FL_DERIVED) | |
759 | { | |
760 | s = intr->sym; | |
761 | break; | |
762 | } | |
763 | } | |
764 | ||
9f5a9ac5 | 765 | if (!s->backend_decl) |
766 | s->backend_decl = gfc_get_derived_type (s); | |
767 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
768 | return true; | |
769 | } | |
770 | else if (s->backend_decl) | |
771 | { | |
85ec2f13 | 772 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 773 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
774 | true); | |
775 | else if (sym->ts.type == BT_CHARACTER) | |
776 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
777 | sym->backend_decl = s->backend_decl; | |
778 | return true; | |
779 | } | |
780 | } | |
781 | return false; | |
782 | } | |
783 | ||
784 | ||
4ee9c684 | 785 | /* Create an array index type variable with function scope. */ |
786 | ||
787 | static tree | |
788 | create_index_var (const char * pfx, int nest) | |
789 | { | |
790 | tree decl; | |
791 | ||
792 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
793 | if (nest) | |
794 | gfc_add_decl_to_parent_function (decl); | |
795 | else | |
796 | gfc_add_decl_to_function (decl); | |
797 | return decl; | |
798 | } | |
799 | ||
800 | ||
801 | /* Create variables to hold all the non-constant bits of info for a | |
802 | descriptorless array. Remember these in the lang-specific part of the | |
803 | type. */ | |
804 | ||
805 | static void | |
806 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
807 | { | |
808 | tree type; | |
809 | int dim; | |
810 | int nest; | |
7b82374f | 811 | gfc_namespace* procns; |
c6793847 | 812 | symbol_attribute *array_attr; |
813 | gfc_array_spec *as; | |
814 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 815 | |
816 | type = TREE_TYPE (decl); | |
c6793847 | 817 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
818 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 819 | |
820 | /* We just use the descriptor, if there is one. */ | |
821 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
822 | return; | |
823 | ||
22d678e8 | 824 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 825 | procns = gfc_find_proc_namespace (sym->ns); |
826 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 827 | && !sym->attr.contained; |
828 | ||
c6793847 | 829 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
830 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 831 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
832 | { | |
833 | tree token; | |
ac36faf0 | 834 | tree token_type = build_qualified_type (pvoid_type_node, |
835 | TYPE_QUAL_RESTRICT); | |
836 | ||
837 | if (sym->module && (sym->attr.use_assoc | |
838 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
839 | { | |
840 | tree token_name | |
841 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
842 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
843 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
844 | token_type); | |
3adf245a | 845 | if (sym->attr.use_assoc) |
846 | DECL_EXTERNAL (token) = 1; | |
847 | else | |
848 | TREE_STATIC (token) = 1; | |
849 | ||
c8ddfd5d | 850 | TREE_PUBLIC (token) = 1; |
851 | ||
852 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
853 | { | |
854 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
855 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
856 | } | |
ac36faf0 | 857 | } |
858 | else | |
3adf245a | 859 | { |
860 | token = gfc_create_var_np (token_type, "caf_token"); | |
861 | TREE_STATIC (token) = 1; | |
862 | } | |
a961ca30 | 863 | |
a961ca30 | 864 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
865 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 866 | DECL_NONALIASED (token) = 1; |
867 | ||
868 | if (sym->module && !sym->attr.use_assoc) | |
869 | { | |
870 | pushdecl (token); | |
871 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
872 | gfc_module_add_decl (cur_module, token); | |
873 | } | |
874 | else | |
875 | gfc_add_decl_to_function (token); | |
a961ca30 | 876 | } |
877 | ||
4ee9c684 | 878 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
879 | { | |
880 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 881 | { |
882 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
883 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
884 | } | |
9ca15c9b | 885 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 886 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 887 | && (as->type != AS_ASSUMED_SIZE |
888 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 889 | { |
890 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
891 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
892 | } | |
4ee9c684 | 893 | |
894 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 895 | { |
896 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
897 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
898 | } | |
4ee9c684 | 899 | } |
076094b7 | 900 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
901 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
902 | { | |
903 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
904 | { | |
905 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
906 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
907 | } | |
908 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
909 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
910 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
911 | { | |
912 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
913 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
914 | } | |
915 | } | |
4ee9c684 | 916 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
917 | { | |
918 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
919 | "offset"); | |
86254bbf | 920 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
921 | ||
4ee9c684 | 922 | if (nest) |
923 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
924 | else | |
925 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
926 | } | |
d4163395 | 927 | |
928 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 929 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 930 | { |
931 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
932 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
933 | } | |
d4163395 | 934 | |
935 | if (POINTER_TYPE_P (type)) | |
936 | { | |
937 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
938 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
939 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
940 | type = TREE_TYPE (type); | |
941 | } | |
942 | ||
943 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
944 | { | |
945 | tree size, range; | |
946 | ||
fd779e1d | 947 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
948 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 949 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
950 | size); | |
951 | TYPE_DOMAIN (type) = range; | |
952 | layout_type (type); | |
953 | } | |
6cf159a6 | 954 | |
6cf159a6 | 955 | if (TYPE_NAME (type) != NULL_TREE |
c6793847 | 956 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
957 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)) == VAR_DECL) | |
6cf159a6 | 958 | { |
959 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
960 | ||
c6793847 | 961 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 962 | { |
963 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
964 | gtype = TREE_TYPE (gtype); | |
965 | } | |
966 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
967 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
968 | TYPE_NAME (type) = NULL_TREE; | |
969 | } | |
970 | ||
971 | if (TYPE_NAME (type) == NULL_TREE) | |
972 | { | |
973 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
974 | ||
c6793847 | 975 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 976 | { |
7130ec9d | 977 | tree lbound, ubound; |
978 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
979 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
980 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 981 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 982 | /* Ensure the bound variables aren't optimized out at -O0. |
983 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 984 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
985 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
986 | end up in debug info. */ | |
7130ec9d | 987 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
988 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
989 | { | |
990 | if (DECL_NAME (lbound) | |
991 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
992 | "lbound") != 0) | |
84bfaaeb | 993 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 994 | DECL_IGNORED_P (lbound) = 0; |
995 | } | |
996 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
997 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
998 | { | |
999 | if (DECL_NAME (ubound) | |
1000 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1001 | "ubound") != 0) | |
84bfaaeb | 1002 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1003 | DECL_IGNORED_P (ubound) = 0; |
1004 | } | |
6cf159a6 | 1005 | } |
e60a6f7b | 1006 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1007 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1008 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1009 | } | |
4ee9c684 | 1010 | } |
1011 | ||
1012 | ||
1013 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1014 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1015 | initialization, and construct full type information. */ |
1016 | ||
1017 | static tree | |
1018 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1019 | { | |
1020 | tree decl; | |
1021 | tree type; | |
1022 | gfc_array_spec *as; | |
c6793847 | 1023 | symbol_attribute *array_attr; |
4ee9c684 | 1024 | char *name; |
3d8dea5a | 1025 | gfc_packed packed; |
4ee9c684 | 1026 | int n; |
1027 | bool known_size; | |
c6793847 | 1028 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1029 | ||
1030 | /* Use the array as and attr. */ | |
1031 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1032 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1033 | ||
1034 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1035 | For class arrays the information if sym is an allocatable or pointer | |
1036 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1037 | too many reasons to be of use here). */ | |
1038 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1039 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1040 | || array_attr->allocatable | |
1041 | || (as && as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1042 | return dummy; |
1043 | ||
c6793847 | 1044 | /* Add to list of variables if not a fake result variable. |
1045 | These symbols are set on the symbol only, not on the class component. */ | |
4ee9c684 | 1046 | if (sym->attr.result || sym->attr.dummy) |
1047 | gfc_defer_symbol_init (sym); | |
1048 | ||
c6793847 | 1049 | /* For a class array the array descriptor is in the _data component, while |
1050 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1051 | descriptor. */ | |
1052 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1053 | : TREE_TYPE (dummy)); | |
1054 | /* type now is the array descriptor w/o any indirection. */ | |
22d678e8 | 1055 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1056 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1057 | |
f888a3fb | 1058 | /* Do we know the element size? */ |
4ee9c684 | 1059 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1060 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1061 | |
c6793847 | 1062 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1063 | { |
1064 | /* For descriptorless arrays with known element size the actual | |
1065 | argument is sufficient. */ | |
4ee9c684 | 1066 | gfc_build_qualified_array (dummy, sym); |
1067 | return dummy; | |
1068 | } | |
1069 | ||
4ee9c684 | 1070 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1071 | { | |
cb8e3560 | 1072 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1073 | packed = PACKED_NO; |
3d235846 | 1074 | |
1075 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1076 | are not repacked. */ | |
829d7a08 | 1077 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1078 | { |
1079 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1080 | packed = PACKED_FULL; |
4ee9c684 | 1081 | } |
1082 | else | |
1083 | { | |
1084 | if (as->type == AS_EXPLICIT) | |
1085 | { | |
3d8dea5a | 1086 | packed = PACKED_FULL; |
4ee9c684 | 1087 | for (n = 0; n < as->rank; n++) |
1088 | { | |
1089 | if (!(as->upper[n] | |
1090 | && as->lower[n] | |
1091 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1092 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1093 | { |
1094 | packed = PACKED_PARTIAL; | |
1095 | break; | |
1096 | } | |
4ee9c684 | 1097 | } |
1098 | } | |
1099 | else | |
3d8dea5a | 1100 | packed = PACKED_PARTIAL; |
4ee9c684 | 1101 | } |
1102 | ||
c6793847 | 1103 | /* For classarrays the element type is required, but |
1104 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1105 | type = is_classarray ? gfc_get_element_type (type) | |
1106 | : gfc_typenode_for_spec (&sym->ts); | |
1107 | type = gfc_get_nodesc_array_type (type, as, packed, | |
e1b3b79b | 1108 | !sym->attr.target); |
4ee9c684 | 1109 | } |
1110 | else | |
1111 | { | |
1112 | /* We now have an expression for the element size, so create a fully | |
1113 | qualified type. Reset sym->backend decl or this will just return the | |
1114 | old type. */ | |
d95efb59 | 1115 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1116 | sym->backend_decl = NULL_TREE; |
1117 | type = gfc_sym_type (sym); | |
3d8dea5a | 1118 | packed = PACKED_FULL; |
4ee9c684 | 1119 | } |
1120 | ||
1121 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1122 | decl = build_decl (input_location, |
1123 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1124 | |
1125 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1126 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1127 | TREE_PUBLIC (decl) = 0; |
1128 | TREE_STATIC (decl) = 0; | |
1129 | DECL_EXTERNAL (decl) = 0; | |
1130 | ||
a1f1e248 | 1131 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1132 | if (sym->attr.optional) | |
1133 | TREE_NO_WARNING (decl) = 1; | |
1134 | ||
4ee9c684 | 1135 | /* We should never get deferred shape arrays here. We used to because of |
1136 | frontend bugs. */ | |
c6793847 | 1137 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1138 | |
3d8dea5a | 1139 | if (packed == PACKED_PARTIAL) |
1140 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1141 | else if (packed == PACKED_FULL) | |
1142 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1143 | |
1144 | gfc_build_qualified_array (decl, sym); | |
1145 | ||
1146 | if (DECL_LANG_SPECIFIC (dummy)) | |
1147 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1148 | else | |
1149 | gfc_allocate_lang_decl (decl); | |
1150 | ||
1151 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1152 | ||
1153 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1154 | || sym->attr.contained) | |
1155 | gfc_add_decl_to_function (decl); | |
1156 | else | |
1157 | gfc_add_decl_to_parent_function (decl); | |
1158 | ||
1159 | return decl; | |
1160 | } | |
1161 | ||
9579733e | 1162 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1163 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1164 | pointing to the artificial variable for debug info purposes. */ | |
1165 | ||
1166 | static void | |
1167 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1168 | { | |
1169 | tree decl, dummy; | |
1170 | ||
1171 | if (! nonlocal_dummy_decl_pset) | |
431205b7 | 1172 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
9579733e | 1173 | |
431205b7 | 1174 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
9579733e | 1175 | return; |
1176 | ||
1177 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1178 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1179 | TREE_TYPE (sym->backend_decl)); |
1180 | DECL_ARTIFICIAL (decl) = 0; | |
1181 | TREE_USED (decl) = 1; | |
1182 | TREE_PUBLIC (decl) = 0; | |
1183 | TREE_STATIC (decl) = 0; | |
1184 | DECL_EXTERNAL (decl) = 0; | |
1185 | if (DECL_BY_REFERENCE (dummy)) | |
1186 | DECL_BY_REFERENCE (decl) = 1; | |
1187 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1188 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1189 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1190 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1191 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1192 | nonlocal_dummy_decls = decl; |
1193 | } | |
4ee9c684 | 1194 | |
1195 | /* Return a constant or a variable to use as a string length. Does not | |
1196 | add the decl to the current scope. */ | |
1197 | ||
1198 | static tree | |
1199 | gfc_create_string_length (gfc_symbol * sym) | |
1200 | { | |
eeebe20b | 1201 | gcc_assert (sym->ts.u.cl); |
1202 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1203 | |
eeebe20b | 1204 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1205 | { |
a4abf8a0 | 1206 | tree length; |
774bbd60 | 1207 | const char *name; |
4ee9c684 | 1208 | |
873f242d | 1209 | /* The string length variable shall be in static memory if it is either |
1210 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1211 | relevant is "len=:" - otherwise, it is either a constant length or | |
1212 | it is an automatic variable. */ | |
be125be0 | 1213 | bool static_length = sym->attr.save |
1214 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1215 | || (flag_max_stack_var_size == 0 |
873f242d | 1216 | && sym->ts.deferred && !sym->attr.dummy |
1217 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1218 | |
1219 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1220 | variables as some systems do not support the "." in the assembler name. | |
1221 | For nonstatic variables, the "." does not appear in assembler. */ | |
1222 | if (static_length) | |
1223 | { | |
1224 | if (sym->module) | |
1225 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1226 | sym->name); | |
1227 | else | |
1228 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1229 | } | |
1230 | else if (sym->module) | |
774bbd60 | 1231 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1232 | else | |
1233 | name = gfc_get_string (".%s", sym->name); | |
1234 | ||
e60a6f7b | 1235 | length = build_decl (input_location, |
1236 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1237 | gfc_charlen_type_node); |
4ee9c684 | 1238 | DECL_ARTIFICIAL (length) = 1; |
1239 | TREE_USED (length) = 1; | |
d4163395 | 1240 | if (sym->ns->proc_name->tlink != NULL) |
1241 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1242 | |
eeebe20b | 1243 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1244 | |
be125be0 | 1245 | if (static_length) |
774bbd60 | 1246 | TREE_STATIC (length) = 1; |
1247 | ||
1248 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1249 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1250 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1251 | } |
1252 | ||
eeebe20b | 1253 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1254 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1255 | } |
1256 | ||
c8f1568f | 1257 | /* If a variable is assigned a label, we add another two auxiliary |
1258 | variables. */ | |
1259 | ||
1260 | static void | |
1261 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1262 | { | |
1263 | tree addr; | |
1264 | tree length; | |
1265 | tree decl; | |
1266 | ||
1267 | gcc_assert (sym->backend_decl); | |
1268 | ||
1269 | decl = sym->backend_decl; | |
1270 | gfc_allocate_lang_decl (decl); | |
1271 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1272 | length = build_decl (input_location, |
1273 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1274 | gfc_charlen_type_node); |
e60a6f7b | 1275 | addr = build_decl (input_location, |
1276 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1277 | pvoid_type_node); |
1278 | gfc_finish_var_decl (length, sym); | |
1279 | gfc_finish_var_decl (addr, sym); | |
1280 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1281 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1282 | target label's address. Otherwise, value is the length of a format string | |
1283 | and ASSIGN_ADDR is its address. */ | |
1284 | if (TREE_STATIC (length)) | |
35bf1214 | 1285 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1286 | else |
1287 | gfc_defer_symbol_init (sym); | |
1288 | ||
1289 | GFC_DECL_STRING_LEN (decl) = length; | |
1290 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1291 | } | |
4ee9c684 | 1292 | |
36b0a1b0 | 1293 | |
1294 | static tree | |
1295 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1296 | { | |
1297 | unsigned id; | |
1298 | tree attr; | |
1299 | ||
1300 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1301 | if (sym_attr.ext_attr & (1 << id)) | |
1302 | { | |
1303 | attr = build_tree_list ( | |
1304 | get_identifier (ext_attr_list[id].middle_end_name), | |
1305 | NULL_TREE); | |
1306 | list = chainon (list, attr); | |
1307 | } | |
1308 | ||
691447ab | 1309 | if (sym_attr.omp_declare_target) |
1310 | list = tree_cons (get_identifier ("omp declare target"), | |
1311 | NULL_TREE, list); | |
1312 | ||
7c1a9598 | 1313 | if (sym_attr.oacc_function) |
1314 | { | |
1315 | tree dims = NULL_TREE; | |
1316 | int ix; | |
1317 | int level = sym_attr.oacc_function - 1; | |
1318 | ||
1319 | for (ix = GOMP_DIM_MAX; ix--;) | |
1320 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1321 | integer_zero_node, dims); | |
1322 | ||
1323 | list = tree_cons (get_identifier ("oacc function"), | |
1324 | dims, list); | |
1325 | } | |
1326 | ||
36b0a1b0 | 1327 | return list; |
1328 | } | |
1329 | ||
1330 | ||
802532b9 | 1331 | static void build_function_decl (gfc_symbol * sym, bool global); |
1332 | ||
1333 | ||
4ee9c684 | 1334 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1335 | exist. */ | |
1336 | ||
1337 | tree | |
1338 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1339 | { | |
1340 | tree decl; | |
1341 | tree length = NULL_TREE; | |
36b0a1b0 | 1342 | tree attributes; |
4ee9c684 | 1343 | int byref; |
cd2c99b8 | 1344 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1345 | bool fun_or_res; |
4ee9c684 | 1346 | |
0b5dc8b5 | 1347 | gcc_assert (sym->attr.referenced |
9e45357a | 1348 | || sym->attr.flavor == FL_PROCEDURE |
1349 | || sym->attr.use_assoc | |
4b8eb6ca | 1350 | || sym->attr.used_in_submodule |
9e45357a | 1351 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1352 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1353 | && sym->backend_decl)); | |
4ee9c684 | 1354 | |
ff70e443 | 1355 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1356 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1357 | else | |
1358 | byref = 0; | |
1359 | ||
09c509ed | 1360 | /* Make sure that the vtab for the declared type is completed. */ |
1361 | if (sym->ts.type == BT_CLASS) | |
1362 | { | |
50b4b37b | 1363 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1364 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1365 | { |
1366 | gfc_find_derived_vtab (c->ts.u.derived); | |
1367 | gfc_get_derived_type (sym->ts.u.derived); | |
1368 | } | |
09c509ed | 1369 | } |
1370 | ||
617125a6 | 1371 | /* All deferred character length procedures need to retain the backend |
1372 | decl, which is a pointer to the character length in the caller's | |
1373 | namespace and to declare a local character length. */ | |
1374 | if (!byref && sym->attr.function | |
1375 | && sym->ts.type == BT_CHARACTER | |
1376 | && sym->ts.deferred | |
1377 | && sym->ts.u.cl->passed_length == NULL | |
1378 | && sym->ts.u.cl->backend_decl | |
1379 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1380 | { | |
1381 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1382 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1383 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
617125a6 | 1384 | } |
1385 | ||
8b9eb27e | 1386 | fun_or_res = byref && (sym->attr.result |
1387 | || (sym->attr.function && sym->ts.deferred)); | |
1388 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1389 | { |
1390 | /* Return via extra parameter. */ | |
1391 | if (sym->attr.result && byref | |
1392 | && !sym->backend_decl) | |
1393 | { | |
1394 | sym->backend_decl = | |
1395 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1396 | /* For entry master function skip over the __entry |
1397 | argument. */ | |
1398 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1399 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1400 | } |
1401 | ||
1402 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1403 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1404 | |
1405 | /* Create a character length variable. */ | |
1406 | if (sym->ts.type == BT_CHARACTER) | |
1407 | { | |
617125a6 | 1408 | /* For a deferred dummy, make a new string length variable. */ |
1409 | if (sym->ts.deferred | |
1410 | && | |
1411 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1412 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1413 | ||
d1b1479f | 1414 | if (sym->ts.deferred && byref) |
617125a6 | 1415 | { |
d1b1479f | 1416 | /* The string length of a deferred char array is stored in the |
1417 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1418 | marked as a result. Exempt this variable from generating a | |
1419 | temporary for it. */ | |
1420 | if (sym->attr.result) | |
1421 | { | |
1422 | /* We need to insert a indirect ref for param decls. */ | |
1423 | if (sym->ts.u.cl->backend_decl | |
1424 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1425 | { |
1426 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
a4731200 | 1427 | sym->ts.u.cl->backend_decl = |
d1b1479f | 1428 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
a4731200 | 1429 | } |
ddcfeaf1 | 1430 | } |
d1b1479f | 1431 | /* For all other parameters make sure, that they are copied so |
1432 | that the value and any modifications are local to the routine | |
1433 | by generating a temporary variable. */ | |
1434 | else if (sym->attr.function | |
1435 | && sym->ts.u.cl->passed_length == NULL | |
1436 | && sym->ts.u.cl->backend_decl) | |
1437 | { | |
1438 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1439 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1440 | sym->ts.u.cl->backend_decl | |
1441 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1442 | else | |
a4731200 | 1443 | sym->ts.u.cl->backend_decl = NULL_TREE; |
d1b1479f | 1444 | } |
617125a6 | 1445 | } |
1446 | ||
eeebe20b | 1447 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1448 | length = gfc_create_string_length (sym); |
1449 | else | |
eeebe20b | 1450 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1451 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1452 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1453 | { |
d95efb59 | 1454 | /* Add the string length to the same context as the symbol. */ |
1455 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1456 | gfc_add_decl_to_function (length); | |
1457 | else | |
1458 | gfc_add_decl_to_parent_function (length); | |
1459 | ||
1460 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1461 | DECL_CONTEXT (length)); | |
1462 | ||
d4163395 | 1463 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1464 | } |
4ee9c684 | 1465 | } |
1466 | ||
1467 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1468 | if ((sym->attr.dimension || sym->attr.codimension) |
1469 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1470 | { |
d95efb59 | 1471 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1472 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1473 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1474 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1475 | sym->backend_decl = decl; | |
4ee9c684 | 1476 | } |
1477 | ||
c6793847 | 1478 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1479 | some caller is expecting an expression to apply the component refs to. | |
1480 | Therefore the descriptor is only created and stored in | |
1481 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1482 | responsible to extract it from there, when the descriptor is | |
1483 | desired. */ | |
1484 | if (IS_CLASS_ARRAY (sym) | |
1485 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1486 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1487 | { | |
1488 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1489 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1490 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1491 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1492 | sym->backend_decl = decl; | |
1493 | } | |
1494 | ||
4ee9c684 | 1495 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1496 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1497 | { | |
1498 | gfc_add_assign_aux_vars (sym); | |
1499 | } | |
9579733e | 1500 | |
c6793847 | 1501 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
9579733e | 1502 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1503 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1504 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1505 | gfc_nonlocal_dummy_array_decl (sym); | |
1506 | ||
fd23cc08 | 1507 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1508 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1509 | ||
fd23cc08 | 1510 | return sym->backend_decl; |
4ee9c684 | 1511 | } |
1512 | ||
1513 | if (sym->backend_decl) | |
1514 | return sym->backend_decl; | |
1515 | ||
a25debd0 | 1516 | /* Special case for array-valued named constants from intrinsic |
1517 | procedures; those are inlined. */ | |
d566c3e0 | 1518 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1519 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1520 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1521 | intrinsic_array_parameter = true; |
1522 | ||
044bbd71 | 1523 | /* If use associated compilation, use the module |
094bca96 | 1524 | declaration. */ |
044bbd71 | 1525 | if ((sym->attr.flavor == FL_VARIABLE |
1526 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1527 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1528 | && !intrinsic_array_parameter |
1529 | && sym->module | |
1530 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1531 | { |
1532 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1533 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1534 | return sym->backend_decl; | |
1535 | } | |
7ea64434 | 1536 | |
4ee9c684 | 1537 | if (sym->attr.flavor == FL_PROCEDURE) |
1538 | { | |
77d080ca | 1539 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1540 | procedure pointers and procptr initialization targets. */ |
77d080ca | 1541 | if (sym->attr.use_assoc || sym->attr.intrinsic |
1542 | || sym->attr.if_source != IFSRC_DECL) | |
802532b9 | 1543 | { |
1544 | decl = gfc_get_extern_function_decl (sym); | |
1545 | gfc_set_decl_location (decl, &sym->declared_at); | |
1546 | } | |
1547 | else | |
1548 | { | |
1549 | if (!sym->backend_decl) | |
1550 | build_function_decl (sym, false); | |
1551 | decl = sym->backend_decl; | |
1552 | } | |
4ee9c684 | 1553 | return decl; |
1554 | } | |
1555 | ||
1556 | if (sym->attr.intrinsic) | |
382ad5c3 | 1557 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1558 | |
1559 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1560 | type declaration. For associate names, the target character |
1561 | length is used. Set 'length' to a constant so that if the | |
1562 | string lenght is a variable, it is not finished a second time. */ | |
4ee9c684 | 1563 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1564 | { |
1565 | if (sym->attr.associate_var | |
1566 | && sym->ts.u.cl->backend_decl | |
1567 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
1568 | length = gfc_index_zero_node; | |
1569 | else | |
1570 | length = gfc_create_string_length (sym); | |
1571 | } | |
4ee9c684 | 1572 | |
1573 | /* Create the decl for the variable. */ | |
e60a6f7b | 1574 | decl = build_decl (sym->declared_at.lb->location, |
1575 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1576 | |
1236e28b | 1577 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1578 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1579 | decl_attributes (&decl, attributes, 0); | |
1580 | ||
f888a3fb | 1581 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1582 | This is done here rather than in gfc_finish_var_decl because it |
1583 | is different for string length variables. */ | |
4f0fae8e | 1584 | if (sym->module) |
df4d540f | 1585 | { |
1236e28b | 1586 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1587 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1588 | DECL_IGNORED_P (decl) = 1; |
1589 | } | |
4ee9c684 | 1590 | |
bc5663df | 1591 | if (sym->attr.select_type_temporary) |
1592 | { | |
1593 | DECL_ARTIFICIAL (decl) = 1; | |
1594 | DECL_IGNORED_P (decl) = 1; | |
1595 | } | |
1596 | ||
7a777e43 | 1597 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1598 | { |
1599 | /* Create variables to hold the non-constant bits of array info. */ | |
1600 | gfc_build_qualified_array (decl, sym); | |
1601 | ||
b3c3927c | 1602 | if (sym->attr.contiguous |
1603 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1604 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1605 | } | |
1606 | ||
0a96a7cc | 1607 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1608 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1609 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1610 | (CLASS_DATA (sym)->attr.dimension |
1611 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1612 | || (sym->ts.type == BT_DERIVED |
1613 | && (sym->ts.u.derived->attr.alloc_comp | |
1614 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1615 | && !sym->ns->proc_name->attr.is_main_program | |
1616 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1617 | /* This applies a derived type default initializer. */ |
1618 | || (sym->ts.type == BT_DERIVED | |
1619 | && sym->attr.save == SAVE_NONE | |
1620 | && !sym->attr.data | |
1621 | && !sym->attr.allocatable | |
1622 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1623 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1624 | gfc_defer_symbol_init (sym); |
2294b616 | 1625 | |
4ee9c684 | 1626 | gfc_finish_var_decl (decl, sym); |
1627 | ||
bda1f152 | 1628 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1629 | { |
4ee9c684 | 1630 | /* Character variables need special handling. */ |
1631 | gfc_allocate_lang_decl (decl); | |
1632 | ||
c3639856 | 1633 | /* Associate names can use the hidden string length variable |
1634 | of their associated target. */ | |
bda1f152 | 1635 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1636 | { |
4ee9c684 | 1637 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1638 | gcc_assert (!sym->value); |
4ee9c684 | 1639 | } |
4ee9c684 | 1640 | } |
1033248c | 1641 | else if (sym->attr.subref_array_pointer) |
1642 | { | |
1643 | /* We need the span for these beasts. */ | |
1644 | gfc_allocate_lang_decl (decl); | |
1645 | } | |
1646 | ||
1647 | if (sym->attr.subref_array_pointer) | |
1648 | { | |
1649 | tree span; | |
1650 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1651 | span = build_decl (input_location, |
1652 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1653 | gfc_array_index_type); |
1654 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1655 | TREE_STATIC (span) = TREE_STATIC (decl); |
1656 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1657 | |
1658 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1659 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1660 | } |
1661 | ||
fd23cc08 | 1662 | if (sym->ts.type == BT_CLASS) |
1663 | GFC_DECL_CLASS(decl) = 1; | |
1664 | ||
4ee9c684 | 1665 | sym->backend_decl = decl; |
1666 | ||
c8f1568f | 1667 | if (sym->attr.assign) |
21ebda4d | 1668 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1669 | |
cd2c99b8 | 1670 | if (intrinsic_array_parameter) |
1671 | { | |
1672 | TREE_STATIC (decl) = 1; | |
1673 | DECL_EXTERNAL (decl) = 0; | |
1674 | } | |
1675 | ||
1676 | if (TREE_STATIC (decl) | |
1677 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1678 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
eb106faf | 1679 | || flag_max_stack_var_size == 0 |
a961ca30 | 1680 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1681 | && (flag_coarray != GFC_FCOARRAY_LIB |
0d3bb1de | 1682 | || !sym->attr.codimension || sym->attr.allocatable)) |
a545a8f8 | 1683 | { |
1684 | /* Add static initializer. For procedures, it is only needed if | |
1685 | SAVE is specified otherwise they need to be reinitialized | |
1686 | every time the procedure is entered. The TREE_STATIC is | |
1687 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1688 | |
bda1f152 | 1689 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1690 | TREE_TYPE (decl), sym->attr.dimension |
1691 | || (sym->attr.codimension | |
1692 | && sym->attr.allocatable), | |
1693 | sym->attr.pointer || sym->attr.allocatable | |
1694 | || sym->ts.type == BT_CLASS, | |
1695 | sym->attr.proc_pointer); | |
bda1f152 | 1696 | } |
1697 | ||
9579733e | 1698 | if (!TREE_STATIC (decl) |
1699 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1700 | && !sym->attr.pointer | |
1701 | && !sym->attr.allocatable | |
bc5663df | 1702 | && !sym->attr.proc_pointer |
1703 | && !sym->attr.select_type_temporary) | |
9579733e | 1704 | DECL_BY_REFERENCE (decl) = 1; |
1705 | ||
cf5f881f | 1706 | if (sym->attr.associate_var) |
1707 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1708 | ||
ebad7c3e | 1709 | if (sym->attr.vtab |
1710 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1711 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1712 | |
4ee9c684 | 1713 | return decl; |
1714 | } | |
1715 | ||
1716 | ||
dbe60343 | 1717 | /* Substitute a temporary variable in place of the real one. */ |
1718 | ||
1719 | void | |
1720 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1721 | { | |
1722 | save->attr = sym->attr; | |
1723 | save->decl = sym->backend_decl; | |
1724 | ||
1725 | gfc_clear_attr (&sym->attr); | |
1726 | sym->attr.referenced = 1; | |
1727 | sym->attr.flavor = FL_VARIABLE; | |
1728 | ||
1729 | sym->backend_decl = decl; | |
1730 | } | |
1731 | ||
1732 | ||
1733 | /* Restore the original variable. */ | |
1734 | ||
1735 | void | |
1736 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1737 | { | |
1738 | sym->attr = save->attr; | |
1739 | sym->backend_decl = save->decl; | |
1740 | } | |
1741 | ||
1742 | ||
cad0ddcf | 1743 | /* Declare a procedure pointer. */ |
1744 | ||
1745 | static tree | |
1746 | get_proc_pointer_decl (gfc_symbol *sym) | |
1747 | { | |
1748 | tree decl; | |
36b0a1b0 | 1749 | tree attributes; |
cad0ddcf | 1750 | |
1751 | decl = sym->backend_decl; | |
1752 | if (decl) | |
1753 | return decl; | |
1754 | ||
e60a6f7b | 1755 | decl = build_decl (input_location, |
1756 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1757 | build_pointer_type (gfc_get_function_type (sym))); |
1758 | ||
ea6f8461 | 1759 | if (sym->module) |
1760 | { | |
1761 | /* Apply name mangling. */ | |
1762 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1763 | if (sym->attr.use_assoc) | |
1764 | DECL_IGNORED_P (decl) = 1; | |
1765 | } | |
a90fe829 | 1766 | |
e72f979a | 1767 | if ((sym->ns->proc_name |
1768 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1769 | || sym->attr.contained) |
1770 | gfc_add_decl_to_function (decl); | |
cf269acc | 1771 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1772 | gfc_add_decl_to_parent_function (decl); |
1773 | ||
1774 | sym->backend_decl = decl; | |
1775 | ||
cf269acc | 1776 | /* If a variable is USE associated, it's always external. */ |
1777 | if (sym->attr.use_assoc) | |
1778 | { | |
1779 | DECL_EXTERNAL (decl) = 1; | |
1780 | TREE_PUBLIC (decl) = 1; | |
1781 | } | |
1782 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1783 | { | |
1784 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1785 | TREE_PUBLIC (decl) = 1; |
1786 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1787 | { | |
1788 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1789 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1790 | } | |
cf269acc | 1791 | TREE_STATIC (decl) = 1; |
1792 | } | |
1793 | ||
cad0ddcf | 1794 | if (!sym->attr.use_assoc |
1795 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1796 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1797 | TREE_STATIC (decl) = 1; | |
1798 | ||
1799 | if (TREE_STATIC (decl) && sym->value) | |
1800 | { | |
1801 | /* Add static initializer. */ | |
1802 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1803 | TREE_TYPE (decl), |
1804 | sym->attr.dimension, | |
1805 | false, true); | |
cad0ddcf | 1806 | } |
1807 | ||
8fb1768c | 1808 | /* Handle threadprivate procedure pointers. */ |
1809 | if (sym->attr.threadprivate | |
1810 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1811 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1812 | |
36b0a1b0 | 1813 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1814 | decl_attributes (&decl, attributes, 0); | |
1815 | ||
cad0ddcf | 1816 | return decl; |
1817 | } | |
1818 | ||
1819 | ||
4ee9c684 | 1820 | /* Get a basic decl for an external function. */ |
1821 | ||
1822 | tree | |
1823 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1824 | { | |
1825 | tree type; | |
1826 | tree fndecl; | |
36b0a1b0 | 1827 | tree attributes; |
4ee9c684 | 1828 | gfc_expr e; |
1829 | gfc_intrinsic_sym *isym; | |
1830 | gfc_expr argexpr; | |
17000b91 | 1831 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1832 | tree name; |
1833 | tree mangled_name; | |
83aeedb9 | 1834 | gfc_gsymbol *gsym; |
4ee9c684 | 1835 | |
1836 | if (sym->backend_decl) | |
1837 | return sym->backend_decl; | |
1838 | ||
1b716045 | 1839 | /* We should never be creating external decls for alternate entry points. |
1840 | The procedure may be an alternate entry point, but we don't want/need | |
1841 | to know that. */ | |
22d678e8 | 1842 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1843 | |
cad0ddcf | 1844 | if (sym->attr.proc_pointer) |
1845 | return get_proc_pointer_decl (sym); | |
1846 | ||
83aeedb9 | 1847 | /* See if this is an external procedure from the same file. If so, |
1848 | return the backend_decl. */ | |
da5c730d | 1849 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1850 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1851 | |
c8b913ab | 1852 | if (gsym && !gsym->defined) |
1853 | gsym = NULL; | |
1854 | ||
1855 | /* This can happen because of C binding. */ | |
1856 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1857 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1858 | goto module_sym; | |
1859 | ||
044bbd71 | 1860 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1861 | && !sym->backend_decl | |
1862 | && gsym && gsym->ns | |
1863 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1864 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1865 | { |
d896f9b3 | 1866 | if (!gsym->ns->proc_name->backend_decl) |
1867 | { | |
1868 | /* By construction, the external function cannot be | |
1869 | a contained procedure. */ | |
1870 | locus old_loc; | |
d896f9b3 | 1871 | |
4671339c | 1872 | gfc_save_backend_locus (&old_loc); |
9078126c | 1873 | push_cfun (NULL); |
d896f9b3 | 1874 | |
1875 | gfc_create_function_decl (gsym->ns, true); | |
1876 | ||
1877 | pop_cfun (); | |
4671339c | 1878 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1879 | } |
1880 | ||
83aeedb9 | 1881 | /* If the namespace has entries, the proc_name is the |
1882 | entry master. Find the entry and use its backend_decl. | |
1883 | otherwise, use the proc_name backend_decl. */ | |
1884 | if (gsym->ns->entries) | |
1885 | { | |
1886 | gfc_entry_list *entry = gsym->ns->entries; | |
1887 | ||
1888 | for (; entry; entry = entry->next) | |
1889 | { | |
1890 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1891 | { | |
1892 | sym->backend_decl = entry->sym->backend_decl; | |
1893 | break; | |
1894 | } | |
1895 | } | |
1896 | } | |
1897 | else | |
40c74b02 | 1898 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1899 | |
1900 | if (sym->backend_decl) | |
40c74b02 | 1901 | { |
1902 | /* Avoid problems of double deallocation of the backend declaration | |
1903 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1904 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1905 | sym->attr.use_assoc = 0; | |
1906 | ||
1907 | return sym->backend_decl; | |
1908 | } | |
83aeedb9 | 1909 | } |
1910 | ||
7ea64434 | 1911 | /* See if this is a module procedure from the same file. If so, |
1912 | return the backend_decl. */ | |
1913 | if (sym->module) | |
1914 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1915 | ||
c8b913ab | 1916 | module_sym: |
1917 | if (gsym && gsym->ns | |
1918 | && (gsym->type == GSYM_MODULE | |
1919 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 1920 | { |
1921 | gfc_symbol *s; | |
1922 | ||
1923 | s = NULL; | |
c8b913ab | 1924 | if (gsym->type == GSYM_MODULE) |
1925 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1926 | else | |
1927 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
1928 | ||
7ea64434 | 1929 | if (s && s->backend_decl) |
1930 | { | |
85ec2f13 | 1931 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1932 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1933 | true); | |
1934 | else if (sym->ts.type == BT_CHARACTER) | |
1935 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1936 | sym->backend_decl = s->backend_decl; |
1937 | return sym->backend_decl; | |
1938 | } | |
1939 | } | |
1940 | ||
4ee9c684 | 1941 | if (sym->attr.intrinsic) |
1942 | { | |
1943 | /* Call the resolution function to get the actual name. This is | |
1944 | a nasty hack which relies on the resolution functions only looking | |
1945 | at the first argument. We pass NULL for the second argument | |
1946 | otherwise things like AINT get confused. */ | |
1947 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1948 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1949 | |
1950 | memset (&e, 0, sizeof (e)); | |
1951 | e.expr_type = EXPR_FUNCTION; | |
1952 | ||
1953 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1954 | gcc_assert (isym->formal); |
4ee9c684 | 1955 | argexpr.ts = isym->formal->ts; |
1956 | ||
1957 | if (isym->formal->next == NULL) | |
1958 | isym->resolve.f1 (&e, &argexpr); | |
1959 | else | |
1960 | { | |
37e0271a | 1961 | if (isym->formal->next->next == NULL) |
1962 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1963 | else | |
1964 | { | |
7fe55cc9 | 1965 | if (isym->formal->next->next->next == NULL) |
1966 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1967 | else | |
1968 | { | |
1969 | /* All specific intrinsics take less than 5 arguments. */ | |
1970 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1971 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1972 | } | |
37e0271a | 1973 | } |
4ee9c684 | 1974 | } |
bdaed7d2 | 1975 | |
829d7a08 | 1976 | if (flag_f2c |
bdaed7d2 | 1977 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
1978 | || e.ts.type == BT_COMPLEX)) | |
1979 | { | |
1980 | /* Specific which needs a different implementation if f2c | |
1981 | calling conventions are used. */ | |
17000b91 | 1982 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1983 | } |
1984 | else | |
17000b91 | 1985 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1986 | |
4ee9c684 | 1987 | name = get_identifier (s); |
1988 | mangled_name = name; | |
1989 | } | |
1990 | else | |
1991 | { | |
1992 | name = gfc_sym_identifier (sym); | |
1993 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1994 | } | |
1995 | ||
1996 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1997 | fndecl = build_decl (input_location, |
1998 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1999 | |
e27454ee | 2000 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2001 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2002 | the opposite of declaring a function as static in C). */ |
e27454ee | 2003 | DECL_EXTERNAL (fndecl) = 1; |
2004 | TREE_PUBLIC (fndecl) = 1; | |
2005 | ||
1236e28b | 2006 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2007 | decl_attributes (&fndecl, attributes, 0); | |
2008 | ||
2009 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2010 | |
2011 | /* Set the context of this decl. */ | |
2012 | if (0 && sym->ns && sym->ns->proc_name) | |
2013 | { | |
2014 | /* TODO: Add external decls to the appropriate scope. */ | |
2015 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2016 | } | |
2017 | else | |
2018 | { | |
f888a3fb | 2019 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2020 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2021 | } | |
2022 | ||
4ee9c684 | 2023 | /* Set attributes for PURE functions. A call to PURE function in the |
2024 | Fortran 95 sense is both pure and without side effects in the C | |
2025 | sense. */ | |
bead0399 | 2026 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2027 | { |
4d4b9f0e | 2028 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2029 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2030 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2031 | parameters and don't use alternate returns (is this | |
2032 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2033 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2034 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2035 | } |
2036 | ||
6e27d773 | 2037 | /* Mark non-returning functions. */ |
2038 | if (sym->attr.noreturn) | |
2039 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2040 | ||
4ee9c684 | 2041 | sym->backend_decl = fndecl; |
2042 | ||
2043 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2044 | pushdecl_top_level (fndecl); | |
2045 | ||
15b28553 | 2046 | if (sym->formal_ns |
2047 | && sym->formal_ns->proc_name == sym | |
2048 | && sym->formal_ns->omp_declare_simd) | |
2049 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2050 | ||
4ee9c684 | 2051 | return fndecl; |
2052 | } | |
2053 | ||
2054 | ||
2055 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2056 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2057 | a master function with alternate entry points. */ | |
4ee9c684 | 2058 | |
1b716045 | 2059 | static void |
d896f9b3 | 2060 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2061 | { |
36b0a1b0 | 2062 | tree fndecl, type, attributes; |
4ee9c684 | 2063 | symbol_attribute attr; |
1b716045 | 2064 | tree result_decl; |
4ee9c684 | 2065 | gfc_formal_arglist *f; |
2066 | ||
76e207a9 | 2067 | bool module_procedure = sym->attr.module_procedure |
2068 | && sym->ns | |
2069 | && sym->ns->proc_name | |
2070 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2071 | ||
2072 | gcc_assert (!sym->attr.external || module_procedure); | |
4ee9c684 | 2073 | |
802532b9 | 2074 | if (sym->backend_decl) |
2075 | return; | |
2076 | ||
b31f705b | 2077 | /* Set the line and filename. sym->declared_at seems to point to the |
2078 | last statement for subroutines, but it'll do for now. */ | |
2079 | gfc_set_backend_locus (&sym->declared_at); | |
2080 | ||
4ee9c684 | 2081 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2082 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2083 | || DECL_FILE_SCOPE_P (current_function_decl) |
2084 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2085 | == NAMESPACE_DECL)); | |
4ee9c684 | 2086 | |
2087 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2088 | fndecl = build_decl (input_location, |
2089 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2090 | |
1236e28b | 2091 | attr = sym->attr; |
2092 | ||
e27454ee | 2093 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2094 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2095 | the opposite of declaring a function as static in C). */ |
e27454ee | 2096 | DECL_EXTERNAL (fndecl) = 0; |
2097 | ||
7d6b5754 | 2098 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2099 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2100 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2101 | && flag_module_private))) |
7d6b5754 | 2102 | sym->attr.access = ACCESS_PRIVATE; |
2103 | ||
e27454ee | 2104 | if (!current_function_decl |
c5cb468c | 2105 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2106 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2107 | || sym->attr.public_used)) | |
e27454ee | 2108 | TREE_PUBLIC (fndecl) = 1; |
2109 | ||
9e45357a | 2110 | if (sym->attr.referenced || sym->attr.entry_master) |
2111 | TREE_USED (fndecl) = 1; | |
2112 | ||
1236e28b | 2113 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2114 | decl_attributes (&fndecl, attributes, 0); | |
2115 | ||
4ee9c684 | 2116 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2117 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2118 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2119 | result_decl = NULL_TREE; |
2120 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2121 | if (attr.function) | |
2122 | { | |
2123 | if (gfc_return_by_reference (sym)) | |
2124 | type = void_type_node; | |
2125 | else | |
2126 | { | |
2127 | if (sym->result != sym) | |
2128 | result_decl = gfc_sym_identifier (sym->result); | |
2129 | ||
2130 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2131 | } | |
2132 | } | |
2133 | else | |
2134 | { | |
2135 | /* Look for alternate return placeholders. */ | |
2136 | int has_alternate_returns = 0; | |
6777213b | 2137 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2138 | { |
2139 | if (f->sym == NULL) | |
2140 | { | |
2141 | has_alternate_returns = 1; | |
2142 | break; | |
2143 | } | |
2144 | } | |
2145 | ||
2146 | if (has_alternate_returns) | |
2147 | type = integer_type_node; | |
2148 | else | |
2149 | type = void_type_node; | |
2150 | } | |
2151 | ||
e60a6f7b | 2152 | result_decl = build_decl (input_location, |
2153 | RESULT_DECL, result_decl, type); | |
540edea7 | 2154 | DECL_ARTIFICIAL (result_decl) = 1; |
2155 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2156 | DECL_CONTEXT (result_decl) = fndecl; |
2157 | DECL_RESULT (fndecl) = result_decl; | |
2158 | ||
2159 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2160 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2161 | |
4ee9c684 | 2162 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2163 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2164 | |
f888a3fb | 2165 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2166 | Fortran 95 sense is both pure and without side effects in the C |
2167 | sense. */ | |
bead0399 | 2168 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2169 | { |
be393645 | 2170 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2171 | including an alternate return. In that case it can also be |
231e961a | 2172 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2173 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2174 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2175 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2176 | } | |
2177 | ||
36b0a1b0 | 2178 | |
4ee9c684 | 2179 | /* Layout the function declaration and put it in the binding level |
2180 | of the current function. */ | |
d896f9b3 | 2181 | |
4c197fd0 | 2182 | if (global) |
d896f9b3 | 2183 | pushdecl_top_level (fndecl); |
2184 | else | |
2185 | pushdecl (fndecl); | |
1b716045 | 2186 | |
16a40513 | 2187 | /* Perform name mangling if this is a top level or module procedure. */ |
2188 | if (current_function_decl == NULL_TREE) | |
2189 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2190 | ||
1b716045 | 2191 | sym->backend_decl = fndecl; |
2192 | } | |
2193 | ||
2194 | ||
2195 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2196 | ||
2197 | static void | |
2198 | create_function_arglist (gfc_symbol * sym) | |
2199 | { | |
2200 | tree fndecl; | |
2201 | gfc_formal_arglist *f; | |
d4163395 | 2202 | tree typelist, hidden_typelist; |
2203 | tree arglist, hidden_arglist; | |
1b716045 | 2204 | tree type; |
2205 | tree parm; | |
2206 | ||
2207 | fndecl = sym->backend_decl; | |
2208 | ||
e4b2c26c | 2209 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2210 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2211 | arglist = NULL_TREE; |
d4163395 | 2212 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2213 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2214 | |
2215 | if (sym->attr.entry_master) | |
2216 | { | |
2217 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2218 | parm = build_decl (input_location, |
2219 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2220 | |
1b716045 | 2221 | DECL_CONTEXT (parm) = fndecl; |
2222 | DECL_ARG_TYPE (parm) = type; | |
2223 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2224 | gfc_finish_decl (parm); |
d95efb59 | 2225 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2226 | |
2227 | arglist = chainon (arglist, parm); | |
2228 | typelist = TREE_CHAIN (typelist); | |
2229 | } | |
2230 | ||
e4b2c26c | 2231 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2232 | { |
d4163395 | 2233 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2234 | |
e4b2c26c | 2235 | if (sym->ts.type == BT_CHARACTER) |
2236 | { | |
e4b2c26c | 2237 | /* Length of character result. */ |
d4163395 | 2238 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2239 | |
e60a6f7b | 2240 | length = build_decl (input_location, |
2241 | PARM_DECL, | |
e4b2c26c | 2242 | get_identifier (".__result"), |
d4163395 | 2243 | len_type); |
b345a09f | 2244 | if (POINTER_TYPE_P (len_type)) |
2245 | { | |
2246 | sym->ts.u.cl->passed_length = length; | |
2247 | TREE_USED (length) = 1; | |
2248 | } | |
2249 | else if (!sym->ts.u.cl->length) | |
e4b2c26c | 2250 | { |
eeebe20b | 2251 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2252 | TREE_USED (length) = 1; |
4ee9c684 | 2253 | } |
22d678e8 | 2254 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2255 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2256 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2257 | TREE_READONLY (length) = 1; |
b5b40b3f | 2258 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2259 | gfc_finish_decl (length); |
eeebe20b | 2260 | if (sym->ts.u.cl->backend_decl == NULL |
2261 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2262 | { |
2263 | gfc_symbol *arg; | |
2264 | tree backend_decl; | |
4ee9c684 | 2265 | |
eeebe20b | 2266 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2267 | { |
e60a6f7b | 2268 | tree len = build_decl (input_location, |
2269 | VAR_DECL, | |
d4163395 | 2270 | get_identifier ("..__result"), |
2271 | gfc_charlen_type_node); | |
2272 | DECL_ARTIFICIAL (len) = 1; | |
2273 | TREE_USED (len) = 1; | |
eeebe20b | 2274 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2275 | } |
4ee9c684 | 2276 | |
d4163395 | 2277 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2278 | arg = sym->result ? sym->result : sym; | |
2279 | backend_decl = arg->backend_decl; | |
2280 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2281 | type. */ | |
2282 | arg->backend_decl = NULL; | |
2283 | type = gfc_sym_type (arg); | |
2284 | arg->backend_decl = backend_decl; | |
2285 | type = build_reference_type (type); | |
2286 | } | |
2287 | } | |
4ee9c684 | 2288 | |
e60a6f7b | 2289 | parm = build_decl (input_location, |
2290 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2291 | |
d4163395 | 2292 | DECL_CONTEXT (parm) = fndecl; |
2293 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2294 | TREE_READONLY (parm) = 1; | |
2295 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2296 | gfc_finish_decl (parm); |
4ee9c684 | 2297 | |
d4163395 | 2298 | arglist = chainon (arglist, parm); |
2299 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2300 | |
d4163395 | 2301 | if (sym->ts.type == BT_CHARACTER) |
2302 | { | |
2303 | gfc_allocate_lang_decl (parm); | |
2304 | arglist = chainon (arglist, length); | |
e4b2c26c | 2305 | typelist = TREE_CHAIN (typelist); |
2306 | } | |
2307 | } | |
4ee9c684 | 2308 | |
d4163395 | 2309 | hidden_typelist = typelist; |
6777213b | 2310 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2311 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2312 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2313 | ||
6777213b | 2314 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2315 | { |
2316 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2317 | |
e4b2c26c | 2318 | /* Ignore alternate returns. */ |
2319 | if (f->sym == NULL) | |
2320 | continue; | |
4ee9c684 | 2321 | |
e4b2c26c | 2322 | type = TREE_VALUE (typelist); |
4ee9c684 | 2323 | |
296db1d1 | 2324 | if (f->sym->ts.type == BT_CHARACTER |
2325 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2326 | { |
2327 | tree len_type = TREE_VALUE (hidden_typelist); | |
2328 | tree length = NULL_TREE; | |
617125a6 | 2329 | if (!f->sym->ts.deferred) |
2330 | gcc_assert (len_type == gfc_charlen_type_node); | |
2331 | else | |
2332 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2333 | |
2334 | strcpy (&name[1], f->sym->name); | |
2335 | name[0] = '_'; | |
e60a6f7b | 2336 | length = build_decl (input_location, |
2337 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2338 | |
d4163395 | 2339 | hidden_arglist = chainon (hidden_arglist, length); |
2340 | DECL_CONTEXT (length) = fndecl; | |
2341 | DECL_ARTIFICIAL (length) = 1; | |
2342 | DECL_ARG_TYPE (length) = len_type; | |
2343 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2344 | gfc_finish_decl (length); |
4ee9c684 | 2345 | |
a4abf8a0 | 2346 | /* Remember the passed value. */ |
a90fe829 | 2347 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2348 | { |
2349 | /* This can happen if the same type is used for multiple | |
2350 | arguments. We need to copy cl as otherwise | |
2351 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2352 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2353 | } |
eeebe20b | 2354 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2355 | |
d4163395 | 2356 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2357 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2358 | { |
d4163395 | 2359 | TREE_USED (length) = 1; |
eeebe20b | 2360 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2361 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2362 | } |
2363 | ||
2364 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2365 | ||
eeebe20b | 2366 | if (f->sym->ts.u.cl->backend_decl == NULL |
2367 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2368 | { |
ddcfeaf1 | 2369 | if (POINTER_TYPE_P (len_type)) |
2370 | f->sym->ts.u.cl->backend_decl = | |
2371 | build_fold_indirect_ref_loc (input_location, length); | |
2372 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2373 | gfc_create_string_length (f->sym); |
2374 | ||
2375 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2376 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2377 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2378 | else | |
2379 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2380 | } |
4ee9c684 | 2381 | } |
532c2d79 | 2382 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2383 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2384 | Thus, we will use a hidden argument in that case. */ |
2385 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2386 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
532c2d79 | 2387 | && f->sym->ts.type != BT_DERIVED) |
2388 | { | |
2389 | tree tmp; | |
2390 | strcpy (&name[1], f->sym->name); | |
2391 | name[0] = '_'; | |
2392 | tmp = build_decl (input_location, | |
2393 | PARM_DECL, get_identifier (name), | |
2394 | boolean_type_node); | |
2395 | ||
2396 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2397 | DECL_CONTEXT (tmp) = fndecl; | |
2398 | DECL_ARTIFICIAL (tmp) = 1; | |
2399 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2400 | TREE_READONLY (tmp) = 1; | |
2401 | gfc_finish_decl (tmp); | |
2402 | } | |
4ee9c684 | 2403 | |
d4163395 | 2404 | /* For non-constant length array arguments, make sure they use |
2405 | a different type node from TYPE_ARG_TYPES type. */ | |
2406 | if (f->sym->attr.dimension | |
2407 | && type == TREE_VALUE (typelist) | |
2408 | && TREE_CODE (type) == POINTER_TYPE | |
2409 | && GFC_ARRAY_TYPE_P (type) | |
2410 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2411 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2412 | { | |
2413 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2414 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2415 | else | |
2416 | type = gfc_sym_type (f->sym); | |
2417 | } | |
2418 | ||
cad0ddcf | 2419 | if (f->sym->attr.proc_pointer) |
2420 | type = build_pointer_type (type); | |
2421 | ||
2364aa60 | 2422 | if (f->sym->attr.volatile_) |
2423 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2424 | ||
69b1505f | 2425 | /* Build the argument declaration. */ |
e60a6f7b | 2426 | parm = build_decl (input_location, |
2427 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2428 | |
2364aa60 | 2429 | if (f->sym->attr.volatile_) |
2430 | { | |
2431 | TREE_THIS_VOLATILE (parm) = 1; | |
2432 | TREE_SIDE_EFFECTS (parm) = 1; | |
2433 | } | |
2434 | ||
d4163395 | 2435 | /* Fill in arg stuff. */ |
2436 | DECL_CONTEXT (parm) = fndecl; | |
2437 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2438 | /* All implementation args except for VALUE are read-only. */ |
2439 | if (!f->sym->attr.value) | |
2440 | TREE_READONLY (parm) = 1; | |
98923a84 | 2441 | if (POINTER_TYPE_P (type) |
2442 | && (!f->sym->attr.proc_pointer | |
2443 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2444 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2445 | |
b9c7fce7 | 2446 | gfc_finish_decl (parm); |
cf5f881f | 2447 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2448 | |
2449 | f->sym->backend_decl = parm; | |
2450 | ||
7dce33fe | 2451 | /* Coarrays which are descriptorless or assumed-shape pass with |
2452 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2453 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2454 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2455 | && !f->sym->attr.allocatable) | |
2456 | || (f->sym->ts.type == BT_CLASS | |
2457 | && CLASS_DATA (f->sym)->attr.codimension | |
2458 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2459 | { |
2460 | tree caf_type; | |
2461 | tree token; | |
2462 | tree offset; | |
2463 | ||
2464 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2465 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2466 | caf_type = f->sym->ts.type == BT_CLASS |
2467 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2468 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2469 | |
85c94a64 | 2470 | token = build_decl (input_location, PARM_DECL, |
2471 | create_tmp_var_name ("caf_token"), | |
2472 | build_qualified_type (pvoid_type_node, | |
2473 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2474 | if ((f->sym->ts.type != BT_CLASS |
2475 | && f->sym->as->type != AS_DEFERRED) | |
2476 | || (f->sym->ts.type == BT_CLASS | |
2477 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2478 | { |
2479 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2480 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2481 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2482 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2483 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2484 | } | |
2485 | else | |
2486 | { | |
2487 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2488 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2489 | } | |
a90fe829 | 2490 | |
85c94a64 | 2491 | DECL_CONTEXT (token) = fndecl; |
2492 | DECL_ARTIFICIAL (token) = 1; | |
2493 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2494 | TREE_READONLY (token) = 1; | |
2495 | hidden_arglist = chainon (hidden_arglist, token); | |
2496 | gfc_finish_decl (token); | |
2497 | ||
85c94a64 | 2498 | offset = build_decl (input_location, PARM_DECL, |
2499 | create_tmp_var_name ("caf_offset"), | |
2500 | gfc_array_index_type); | |
2501 | ||
d44f2f7c | 2502 | if ((f->sym->ts.type != BT_CLASS |
2503 | && f->sym->as->type != AS_DEFERRED) | |
2504 | || (f->sym->ts.type == BT_CLASS | |
2505 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2506 | { |
2507 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2508 | == NULL_TREE); | |
2509 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2510 | } | |
2511 | else | |
2512 | { | |
2513 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2514 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2515 | } | |
85c94a64 | 2516 | DECL_CONTEXT (offset) = fndecl; |
2517 | DECL_ARTIFICIAL (offset) = 1; | |
2518 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2519 | TREE_READONLY (offset) = 1; | |
2520 | hidden_arglist = chainon (hidden_arglist, offset); | |
2521 | gfc_finish_decl (offset); | |
2522 | } | |
2523 | ||
d4163395 | 2524 | arglist = chainon (arglist, parm); |
e4b2c26c | 2525 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2526 | } |
e4b2c26c | 2527 | |
465e4a95 | 2528 | /* Add the hidden string length parameters, unless the procedure |
2529 | is bind(C). */ | |
2530 | if (!sym->attr.is_bind_c) | |
2531 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2532 | |
ebe27ea2 | 2533 | gcc_assert (hidden_typelist == NULL_TREE |
2534 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2535 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2536 | } |
e4b2c26c | 2537 | |
1b716045 | 2538 | /* Do the setup necessary before generating the body of a function. */ |
2539 | ||
2540 | static void | |
2541 | trans_function_start (gfc_symbol * sym) | |
2542 | { | |
2543 | tree fndecl; | |
2544 | ||
2545 | fndecl = sym->backend_decl; | |
2546 | ||
f888a3fb | 2547 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2548 | current_function_decl = fndecl; |
2549 | ||
f888a3fb | 2550 | /* Let the world know what we're about to do. */ |
1b716045 | 2551 | announce_function (fndecl); |
2552 | ||
16a40513 | 2553 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2554 | { |
f888a3fb | 2555 | /* Create RTL for function declaration. */ |
1b716045 | 2556 | rest_of_decl_compilation (fndecl, 1, 0); |
2557 | } | |
2558 | ||
f888a3fb | 2559 | /* Create RTL for function definition. */ |
1b716045 | 2560 | make_decl_rtl (fndecl); |
2561 | ||
00cf115c | 2562 | allocate_struct_function (fndecl, false); |
1b716045 | 2563 | |
f888a3fb | 2564 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2565 | pushlevel (); |
1b716045 | 2566 | } |
2567 | ||
2568 | /* Create thunks for alternate entry points. */ | |
2569 | ||
2570 | static void | |
d896f9b3 | 2571 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2572 | { |
2573 | gfc_formal_arglist *formal; | |
2574 | gfc_formal_arglist *thunk_formal; | |
2575 | gfc_entry_list *el; | |
2576 | gfc_symbol *thunk_sym; | |
2577 | stmtblock_t body; | |
2578 | tree thunk_fndecl; | |
1b716045 | 2579 | tree tmp; |
b31f705b | 2580 | locus old_loc; |
1b716045 | 2581 | |
2582 | /* This should always be a toplevel function. */ | |
22d678e8 | 2583 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2584 | |
4671339c | 2585 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2586 | for (el = ns->entries; el; el = el->next) |
2587 | { | |
f1f41a6c | 2588 | vec<tree, va_gc> *args = NULL; |
2589 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2590 | |
1b716045 | 2591 | thunk_sym = el->sym; |
a90fe829 | 2592 | |
d896f9b3 | 2593 | build_function_decl (thunk_sym, global); |
1b716045 | 2594 | create_function_arglist (thunk_sym); |
2595 | ||
2596 | trans_function_start (thunk_sym); | |
2597 | ||
2598 | thunk_fndecl = thunk_sym->backend_decl; | |
2599 | ||
e5004242 | 2600 | gfc_init_block (&body); |
1b716045 | 2601 | |
f888a3fb | 2602 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2603 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2604 | vec_safe_push (args, tmp); |
1b716045 | 2605 | |
c6871095 | 2606 | if (thunk_sym->attr.function) |
2607 | { | |
2608 | if (gfc_return_by_reference (ns->proc_name)) | |
2609 | { | |
2610 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2611 | vec_safe_push (args, ref); |
c6871095 | 2612 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2613 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2614 | } |
2615 | } | |
2616 | ||
6777213b | 2617 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2618 | formal = formal->next) | |
1b716045 | 2619 | { |
c6871095 | 2620 | /* Ignore alternate returns. */ |
2621 | if (formal->sym == NULL) | |
2622 | continue; | |
2623 | ||
1b716045 | 2624 | /* We don't have a clever way of identifying arguments, so resort to |
2625 | a brute-force search. */ | |
6777213b | 2626 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2627 | thunk_formal; |
2628 | thunk_formal = thunk_formal->next) | |
2629 | { | |
2630 | if (thunk_formal->sym == formal->sym) | |
2631 | break; | |
2632 | } | |
2633 | ||
2634 | if (thunk_formal) | |
2635 | { | |
2636 | /* Pass the argument. */ | |
d95efb59 | 2637 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2638 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2639 | if (formal->sym->ts.type == BT_CHARACTER) |
2640 | { | |
eeebe20b | 2641 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2642 | vec_safe_push (string_args, tmp); |
1b716045 | 2643 | } |
2644 | } | |
2645 | else | |
2646 | { | |
2647 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2648 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2649 | if (formal->sym->ts.type == BT_CHARACTER) |
2650 | { | |
7d3075f6 | 2651 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2652 | vec_safe_push (string_args, tmp); |
1b716045 | 2653 | } |
2654 | } | |
2655 | } | |
2656 | ||
2657 | /* Call the master function. */ | |
f1f41a6c | 2658 | vec_safe_splice (args, string_args); |
1b716045 | 2659 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2660 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2661 | if (ns->proc_name->attr.mixed_entry_master) |
2662 | { | |
2663 | tree union_decl, field; | |
2664 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2665 | ||
e60a6f7b | 2666 | union_decl = build_decl (input_location, |
2667 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2668 | TREE_TYPE (master_type)); |
2669 | DECL_ARTIFICIAL (union_decl) = 1; | |
2670 | DECL_EXTERNAL (union_decl) = 0; | |
2671 | TREE_PUBLIC (union_decl) = 0; | |
2672 | TREE_USED (union_decl) = 1; | |
2673 | layout_decl (union_decl, 0); | |
2674 | pushdecl (union_decl); | |
2675 | ||
2676 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2677 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2678 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2679 | gfc_add_expr_to_block (&body, tmp); |
2680 | ||
2681 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2682 | field; field = DECL_CHAIN (field)) |
c6871095 | 2683 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2684 | thunk_sym->result->name) == 0) | |
2685 | break; | |
2686 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2687 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2688 | TREE_TYPE (field), union_decl, field, | |
2689 | NULL_TREE); | |
a90fe829 | 2690 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2691 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2692 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2693 | tmp = build1_v (RETURN_EXPR, tmp); |
2694 | } | |
2695 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2696 | != void_type_node) | |
2697 | { | |
fd779e1d | 2698 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2699 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2700 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2701 | tmp = build1_v (RETURN_EXPR, tmp); |
2702 | } | |
1b716045 | 2703 | gfc_add_expr_to_block (&body, tmp); |
2704 | ||
2705 | /* Finish off this function and send it for code generation. */ | |
2706 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2707 | tmp = getdecls (); |
cde2be84 | 2708 | poplevel (1, 1); |
1b716045 | 2709 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2710 | DECL_SAVED_TREE (thunk_fndecl) |
2711 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2712 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2713 | |
2714 | /* Output the GENERIC tree. */ | |
2715 | dump_function (TDI_original, thunk_fndecl); | |
2716 | ||
2717 | /* Store the end of the function, so that we get good line number | |
2718 | info for the epilogue. */ | |
2719 | cfun->function_end_locus = input_location; | |
2720 | ||
2721 | /* We're leaving the context of this function, so zap cfun. | |
2722 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2723 | tree_rest_of_compilation. */ | |
87d4aa85 | 2724 | set_cfun (NULL); |
1b716045 | 2725 | |
2726 | current_function_decl = NULL_TREE; | |
2727 | ||
35ee1c66 | 2728 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2729 | |
2730 | /* We share the symbols in the formal argument list with other entry | |
2731 | points and the master function. Clear them so that they are | |
2732 | recreated for each function. */ | |
6777213b | 2733 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2734 | formal = formal->next) | |
c6871095 | 2735 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2736 | { | |
2737 | formal->sym->backend_decl = NULL_TREE; | |
2738 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2739 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2740 | } |
2741 | ||
2742 | if (thunk_sym->attr.function) | |
1b716045 | 2743 | { |
c6871095 | 2744 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2745 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2746 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2747 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2748 | } |
2749 | } | |
b31f705b | 2750 | |
4671339c | 2751 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2752 | } |
2753 | ||
2754 | ||
2755 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2756 | points. If global is true, generate the function in the global binding |
2757 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2758 | |
2759 | void | |
d896f9b3 | 2760 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2761 | { |
2762 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2763 | build_function_decl (ns->proc_name, global); |
1b716045 | 2764 | |
f888a3fb | 2765 | /* Compile the entry thunks. */ |
1b716045 | 2766 | if (ns->entries) |
d896f9b3 | 2767 | build_entry_thunks (ns, global); |
1b716045 | 2768 | |
2769 | /* Now create the read argument list. */ | |
2770 | create_function_arglist (ns->proc_name); | |
15b28553 | 2771 | |
2772 | if (ns->omp_declare_simd) | |
2773 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2774 | } |
2775 | ||
c750cc52 | 2776 | /* Return the decl used to hold the function return value. If |
3350e716 | 2777 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2778 | |
2779 | tree | |
c750cc52 | 2780 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2781 | { |
c750cc52 | 2782 | tree decl; |
2783 | tree length; | |
2784 | tree this_fake_result_decl; | |
2785 | tree this_function_decl; | |
4ee9c684 | 2786 | |
2787 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2788 | ||
c750cc52 | 2789 | if (parent_flag) |
2790 | { | |
2791 | this_fake_result_decl = parent_fake_result_decl; | |
2792 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2793 | } | |
2794 | else | |
2795 | { | |
2796 | this_fake_result_decl = current_fake_result_decl; | |
2797 | this_function_decl = current_function_decl; | |
2798 | } | |
2799 | ||
c6871095 | 2800 | if (sym |
c750cc52 | 2801 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2802 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2803 | && sym != sym->ns->proc_name) |
2804 | { | |
d4163395 | 2805 | tree t = NULL, var; |
c750cc52 | 2806 | if (this_fake_result_decl != NULL) |
2807 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2808 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2809 | break; | |
2810 | if (t) | |
2811 | return TREE_VALUE (t); | |
c750cc52 | 2812 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2813 | ||
2814 | if (parent_flag) | |
2815 | this_fake_result_decl = parent_fake_result_decl; | |
2816 | else | |
2817 | this_fake_result_decl = current_fake_result_decl; | |
2818 | ||
d4163395 | 2819 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2820 | { |
2821 | tree field; | |
2822 | ||
2823 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2824 | field; field = DECL_CHAIN (field)) |
c6871095 | 2825 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2826 | sym->name) == 0) | |
2827 | break; | |
2828 | ||
2829 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2830 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2831 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2832 | } |
c750cc52 | 2833 | |
2834 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2835 | if (parent_flag) | |
2836 | gfc_add_decl_to_parent_function (var); | |
2837 | else | |
2838 | gfc_add_decl_to_function (var); | |
2839 | ||
d4163395 | 2840 | SET_DECL_VALUE_EXPR (var, decl); |
2841 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2842 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2843 | |
2844 | TREE_CHAIN (this_fake_result_decl) | |
2845 | = tree_cons (get_identifier (sym->name), var, | |
2846 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2847 | return var; |
c6871095 | 2848 | } |
2849 | ||
c750cc52 | 2850 | if (this_fake_result_decl != NULL_TREE) |
2851 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2852 | |
2853 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2854 | sym is NULL. */ | |
2855 | if (!sym) | |
2856 | return NULL_TREE; | |
2857 | ||
d4163395 | 2858 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2859 | { |
eeebe20b | 2860 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2861 | length = gfc_create_string_length (sym); |
2862 | else | |
eeebe20b | 2863 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2864 | if (TREE_CODE (length) == VAR_DECL |
2865 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2866 | gfc_add_decl_to_function (length); |
4ee9c684 | 2867 | } |
2868 | ||
2869 | if (gfc_return_by_reference (sym)) | |
2870 | { | |
c750cc52 | 2871 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2872 | |
c750cc52 | 2873 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2874 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2875 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2876 | |
2877 | TREE_USED (decl) = 1; | |
2878 | if (sym->as) | |
2879 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2880 | } | |
2881 | else | |
2882 | { | |
2883 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2884 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2885 | |
3350e716 | 2886 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2887 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2888 | VAR_DECL, get_identifier (name), |
3350e716 | 2889 | gfc_sym_type (sym)); |
2890 | else | |
1e71b314 | 2891 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2892 | VAR_DECL, get_identifier (name), |
3350e716 | 2893 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2894 | DECL_ARTIFICIAL (decl) = 1; |
2895 | DECL_EXTERNAL (decl) = 0; | |
2896 | TREE_PUBLIC (decl) = 0; | |
2897 | TREE_USED (decl) = 1; | |
764f1175 | 2898 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2899 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2900 | |
2901 | layout_decl (decl, 0); | |
cf5f881f | 2902 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 2903 | |
c750cc52 | 2904 | if (parent_flag) |
2905 | gfc_add_decl_to_parent_function (decl); | |
2906 | else | |
2907 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2908 | } |
2909 | ||
c750cc52 | 2910 | if (parent_flag) |
2911 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2912 | else | |
2913 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2914 | |
2915 | return decl; | |
2916 | } | |
2917 | ||
2918 | ||
2919 | /* Builds a function decl. The remaining parameters are the types of the | |
2920 | function arguments. Negative nargs indicates a varargs function. */ | |
2921 | ||
8ce86007 | 2922 | static tree |
2923 | build_library_function_decl_1 (tree name, const char *spec, | |
2924 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2925 | { |
f1f41a6c | 2926 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2927 | tree fntype; |
2928 | tree fndecl; | |
4ee9c684 | 2929 | int n; |
2930 | ||
2931 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2932 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2933 | |
4ee9c684 | 2934 | /* Create a list of the argument types. */ |
f1f41a6c | 2935 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2936 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2937 | { |
5edc3af9 | 2938 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2939 | arglist->quick_push (argtype); |
4ee9c684 | 2940 | } |
2941 | ||
2942 | /* Build the function type and decl. */ | |
5edc3af9 | 2943 | if (nargs >= 0) |
2944 | fntype = build_function_type_vec (rettype, arglist); | |
2945 | else | |
2946 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2947 | if (spec) |
2948 | { | |
2949 | tree attr_args = build_tree_list (NULL_TREE, | |
2950 | build_string (strlen (spec), spec)); | |
2951 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2952 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2953 | fntype = build_type_attribute_variant (fntype, attrs); | |
2954 | } | |
e60a6f7b | 2955 | fndecl = build_decl (input_location, |
2956 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2957 | |
2958 | /* Mark this decl as external. */ | |
2959 | DECL_EXTERNAL (fndecl) = 1; | |
2960 | TREE_PUBLIC (fndecl) = 1; | |
2961 | ||
4ee9c684 | 2962 | pushdecl (fndecl); |
2963 | ||
b2c4af5e | 2964 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2965 | |
2966 | return fndecl; | |
2967 | } | |
2968 | ||
8ce86007 | 2969 | /* Builds a function decl. The remaining parameters are the types of the |
2970 | function arguments. Negative nargs indicates a varargs function. */ | |
2971 | ||
2972 | tree | |
2973 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2974 | { | |
2975 | tree ret; | |
2976 | va_list args; | |
2977 | va_start (args, nargs); | |
2978 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2979 | va_end (args); | |
2980 | return ret; | |
2981 | } | |
2982 | ||
2983 | /* Builds a function decl. The remaining parameters are the types of the | |
2984 | function arguments. Negative nargs indicates a varargs function. | |
2985 | The SPEC parameter specifies the function argument and return type | |
2986 | specification according to the fnspec function type attribute. */ | |
2987 | ||
4bf69bc3 | 2988 | tree |
8ce86007 | 2989 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2990 | tree rettype, int nargs, ...) | |
2991 | { | |
2992 | tree ret; | |
2993 | va_list args; | |
2994 | va_start (args, nargs); | |
2995 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2996 | va_end (args); | |
2997 | return ret; | |
2998 | } | |
2999 | ||
4ee9c684 | 3000 | static void |
3001 | gfc_build_intrinsic_function_decls (void) | |
3002 | { | |
90ba9145 | 3003 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 3004 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3005 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3006 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3007 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3008 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3009 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3010 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3011 | |
4ee9c684 | 3012 | /* String functions. */ |
241ecdc7 | 3013 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3014 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3015 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3016 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3017 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3018 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3019 | |
3020 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3021 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3022 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3023 | gfc_charlen_type_node, pchar1_type_node, | |
3024 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3025 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3026 | |
3027 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3028 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3029 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3030 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3031 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3032 | |
3033 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3034 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3035 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3036 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3037 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3038 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3039 | |
3040 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3041 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3042 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3043 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3044 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3045 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3046 | |
3047 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3048 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3049 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3050 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3051 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3052 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3053 | |
3054 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3055 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3056 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3057 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3058 | pchar1_type_node); | |
3059 | ||
3060 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3061 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3062 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3063 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3064 | integer_type_node); | |
3065 | ||
3066 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3067 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3068 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3069 | pchar1_type_node); | |
bc351485 | 3070 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3071 | |
3072 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3073 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3074 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3075 | pchar1_type_node); | |
bc351485 | 3076 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3077 | |
3078 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3079 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3080 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3081 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3082 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3083 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3084 | |
3085 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3086 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3087 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3088 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3089 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3090 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3091 | |
3092 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3093 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3094 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3095 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3096 | pchar4_type_node); | |
bc351485 | 3097 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3098 | |
3099 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3100 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3101 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3102 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3103 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3104 | |
3105 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3106 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3107 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3108 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3109 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3110 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3111 | |
3112 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3113 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3114 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3115 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3116 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3117 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3118 | |
3119 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3120 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3121 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3122 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3123 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3124 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3125 | |
3126 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3127 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3128 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3129 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3130 | pchar4_type_node); | |
3131 | ||
3132 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3133 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3134 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3135 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3136 | integer_type_node); | |
3137 | ||
3138 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3139 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3140 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3141 | pchar4_type_node); | |
bc351485 | 3142 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3143 | |
3144 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3145 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3146 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3147 | pchar4_type_node); | |
bc351485 | 3148 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3149 | |
3150 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3151 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3152 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3153 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3154 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3155 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3156 | |
3157 | ||
3158 | /* Conversion between character kinds. */ | |
3159 | ||
241ecdc7 | 3160 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3161 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3162 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3163 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3164 | |
241ecdc7 | 3165 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3166 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3167 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3168 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3169 | |
40b806de | 3170 | /* Misc. functions. */ |
5fcc6ec2 | 3171 | |
241ecdc7 | 3172 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3173 | get_identifier (PREFIX("ttynam")), ".W", | |
3174 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3175 | integer_type_node); | |
3176 | ||
3177 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3178 | get_identifier (PREFIX("fdate")), ".W", | |
3179 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3180 | ||
3181 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3182 | get_identifier (PREFIX("ctime")), ".W", | |
3183 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3184 | gfc_int8_type_node); | |
3185 | ||
3186 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3187 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3188 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3189 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3190 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3191 | |
3192 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3193 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3194 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3195 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3196 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3197 | |
3198 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3199 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3200 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3201 | pvoid_type_node); | |
537824d1 | 3202 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3203 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3204 | |
72ce5390 | 3205 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3206 | get_identifier (PREFIX("system_clock_4")), | |
3207 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3208 | gfc_pint4_type_node); | |
3209 | ||
3210 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3211 | get_identifier (PREFIX("system_clock_8")), | |
3212 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3213 | gfc_pint8_type_node); | |
3214 | ||
4ee9c684 | 3215 | /* Power functions. */ |
76834664 | 3216 | { |
920e54ef | 3217 | tree ctype, rtype, itype, jtype; |
3218 | int rkind, ikind, jkind; | |
3219 | #define NIKINDS 3 | |
3220 | #define NRKINDS 4 | |
3221 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3222 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3223 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3224 | ||
3225 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3226 | { |
920e54ef | 3227 | itype = gfc_get_int_type (ikinds[ikind]); |
3228 | ||
3229 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3230 | { | |
3231 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3232 | if (itype && jtype) | |
3233 | { | |
3234 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3235 | ikinds[jkind]); | |
3236 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3237 | gfc_build_library_function_decl (get_identifier (name), | |
3238 | jtype, 2, jtype, itype); | |
2177d98b | 3239 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3240 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3241 | } |
3242 | } | |
3243 | ||
3244 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3245 | { |
920e54ef | 3246 | rtype = gfc_get_real_type (rkinds[rkind]); |
3247 | if (rtype && itype) | |
3248 | { | |
3249 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3250 | ikinds[ikind]); | |
3251 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3252 | gfc_build_library_function_decl (get_identifier (name), | |
3253 | rtype, 2, rtype, itype); | |
2177d98b | 3254 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3255 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3256 | } |
3257 | ||
3258 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3259 | if (ctype && itype) | |
3260 | { | |
3261 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3262 | ikinds[ikind]); | |
3263 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3264 | gfc_build_library_function_decl (get_identifier (name), | |
3265 | ctype, 2,ctype, itype); | |
2177d98b | 3266 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3267 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3268 | } |
76834664 | 3269 | } |
3270 | } | |
920e54ef | 3271 | #undef NIKINDS |
3272 | #undef NRKINDS | |
76834664 | 3273 | } |
3274 | ||
241ecdc7 | 3275 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3276 | get_identifier (PREFIX("ishftc4")), | |
3277 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3278 | gfc_int4_type_node); | |
bc351485 | 3279 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3280 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3281 | |
241ecdc7 | 3282 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3283 | get_identifier (PREFIX("ishftc8")), | |
3284 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3285 | gfc_int4_type_node); | |
bc351485 | 3286 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3287 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3288 | |
920e54ef | 3289 | if (gfc_int16_type_node) |
bc351485 | 3290 | { |
3291 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3292 | get_identifier (PREFIX("ishftc16")), |
3293 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3294 | gfc_int4_type_node); | |
bc351485 | 3295 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3296 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3297 | } | |
920e54ef | 3298 | |
4e8e57b0 | 3299 | /* BLAS functions. */ |
3300 | { | |
36c921b9 | 3301 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3302 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3303 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3304 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3305 | tree pz = build_pointer_type | |
3306 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3307 | ||
3308 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3309 | (get_identifier | |
829d7a08 | 3310 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3311 | void_type_node, 15, pchar_type_node, |
3312 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3313 | ps, pint, ps, ps, pint, integer_type_node, |
3314 | integer_type_node); | |
4e8e57b0 | 3315 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3316 | (get_identifier | |
829d7a08 | 3317 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3318 | void_type_node, 15, pchar_type_node, |
3319 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3320 | pd, pint, pd, pd, pint, integer_type_node, |
3321 | integer_type_node); | |
4e8e57b0 | 3322 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3323 | (get_identifier | |
829d7a08 | 3324 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3325 | void_type_node, 15, pchar_type_node, |
3326 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3327 | pc, pint, pc, pc, pint, integer_type_node, |
3328 | integer_type_node); | |
4e8e57b0 | 3329 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3330 | (get_identifier | |
829d7a08 | 3331 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3332 | void_type_node, 15, pchar_type_node, |
3333 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3334 | pz, pint, pz, pz, pint, integer_type_node, |
3335 | integer_type_node); | |
4e8e57b0 | 3336 | } |
3337 | ||
4ee9c684 | 3338 | /* Other functions. */ |
241ecdc7 | 3339 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3340 | get_identifier (PREFIX("size0")), ".R", | |
3341 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3342 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3343 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3344 | |
3345 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3346 | get_identifier (PREFIX("size1")), ".R", | |
3347 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3348 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3349 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3350 | |
3351 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3352 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3353 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3354 | } |
3355 | ||
3356 | ||
3357 | /* Make prototypes for runtime library functions. */ | |
3358 | ||
3359 | void | |
3360 | gfc_build_builtin_function_decls (void) | |
3361 | { | |
90ba9145 | 3362 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3363 | |
241ecdc7 | 3364 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3365 | get_identifier (PREFIX("stop_numeric")), | |
3366 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3367 | /* STOP doesn't return. */ |
98ccec97 | 3368 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3369 | ||
dff2ea5f | 3370 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3371 | get_identifier (PREFIX("stop_numeric_f08")), | |
3372 | void_type_node, 1, gfc_int4_type_node); | |
3373 | /* STOP doesn't return. */ | |
3374 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3375 | ||
241ecdc7 | 3376 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3377 | get_identifier (PREFIX("stop_string")), ".R.", | |
3378 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3379 | /* STOP doesn't return. */ |
241ecdc7 | 3380 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3381 | |
241ecdc7 | 3382 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3383 | get_identifier (PREFIX("error_stop_numeric")), | |
3384 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3385 | /* ERROR STOP doesn't return. */ |
3386 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3387 | ||
241ecdc7 | 3388 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3389 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3390 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3391 | /* ERROR STOP doesn't return. */ |
3392 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3393 | ||
241ecdc7 | 3394 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3395 | get_identifier (PREFIX("pause_numeric")), | |
3396 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3397 | |
241ecdc7 | 3398 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3399 | get_identifier (PREFIX("pause_string")), ".R.", | |
3400 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3401 | |
241ecdc7 | 3402 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3403 | get_identifier (PREFIX("runtime_error")), ".R", | |
3404 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3405 | /* The runtime_error function does not return. */ |
3406 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3407 | |
241ecdc7 | 3408 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3409 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3410 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3411 | /* The runtime_error_at function does not return. */ |
3412 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3413 | |
241ecdc7 | 3414 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3415 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3416 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3417 | ||
3418 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3419 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3420 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3421 | pchar_type_node); | |
3422 | ||
3423 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3424 | get_identifier (PREFIX("os_error")), ".R", | |
3425 | void_type_node, 1, pchar_type_node); | |
9915365e | 3426 | /* The runtime_error function does not return. */ |
3427 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3428 | ||
241ecdc7 | 3429 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3430 | get_identifier (PREFIX("set_args")), | |
3431 | void_type_node, 2, integer_type_node, | |
3432 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3433 | |
241ecdc7 | 3434 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3435 | get_identifier (PREFIX("set_fpe")), | |
3436 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3437 | |
d566c3e0 | 3438 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3439 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3440 | void_type_node, 1, pvoid_type_node); | |
3441 | ||
3442 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3443 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3444 | void_type_node, 1, pvoid_type_node); | |
3445 | ||
56c7c2d7 | 3446 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3447 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3448 | get_identifier (PREFIX("set_options")), "..R", | |
3449 | void_type_node, 2, integer_type_node, | |
3450 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3451 | |
241ecdc7 | 3452 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3453 | get_identifier (PREFIX("set_convert")), | |
3454 | void_type_node, 1, integer_type_node); | |
15774a8b | 3455 | |
241ecdc7 | 3456 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3457 | get_identifier (PREFIX("set_record_marker")), | |
3458 | void_type_node, 1, integer_type_node); | |
f23886ab | 3459 | |
241ecdc7 | 3460 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3461 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3462 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3463 | |
8ce86007 | 3464 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3465 | get_identifier (PREFIX("internal_pack")), ".r", |
3466 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3467 | |
8ce86007 | 3468 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3469 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3470 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3471 | ||
3472 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3473 | get_identifier (PREFIX("associated")), ".RR", | |
3474 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3475 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3476 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3477 | |
70b5944a | 3478 | /* Coarray library calls. */ |
4fe73152 | 3479 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3480 | { |
3481 | tree pint_type, pppchar_type; | |
3482 | ||
3483 | pint_type = build_pointer_type (integer_type_node); | |
3484 | pppchar_type | |
3485 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3486 | ||
3487 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3488 | get_identifier (PREFIX("caf_init")), void_type_node, | |
53687b4e | 3489 | 2, pint_type, pppchar_type); |
70b5944a | 3490 | |
3491 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3492 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3493 | ||
d44f2f7c | 3494 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
3495 | get_identifier (PREFIX("caf_this_image")), integer_type_node, | |
3496 | 1, integer_type_node); | |
3497 | ||
3498 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
3499 | get_identifier (PREFIX("caf_num_images")), integer_type_node, | |
da82fa7c | 3500 | 2, integer_type_node, integer_type_node); |
d44f2f7c | 3501 | |
a961ca30 | 3502 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3503 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3504 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3505 | pchar_type_node, integer_type_node); |
3506 | ||
3507 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3508 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3509 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3510 | |
5f4a118e | 3511 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
9f1c76f9 | 3512 | get_identifier (PREFIX("caf_get")), ".R.RRRW", void_type_node, 9, |
5f4a118e | 3513 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3514 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3515 | boolean_type_node); | |
5f4a118e | 3516 | |
3517 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
9f1c76f9 | 3518 | get_identifier (PREFIX("caf_send")), ".R.RRRR", void_type_node, 9, |
5f4a118e | 3519 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3520 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3521 | boolean_type_node); | |
5f4a118e | 3522 | |
3523 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3524 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRR", void_type_node, | |
9f1c76f9 | 3525 | 13, pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
5f4a118e | 3526 | pvoid_type_node, pvoid_type_node, size_type_node, integer_type_node, |
9f1c76f9 | 3527 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3528 | boolean_type_node); | |
5f4a118e | 3529 | |
70b5944a | 3530 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3531 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3532 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3533 | |
71cf3ae6 | 3534 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3535 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3536 | 3, pint_type, pchar_type_node, integer_type_node); | |
3537 | ||
70b5944a | 3538 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3539 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3540 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3541 | pchar_type_node, integer_type_node); |
70b5944a | 3542 | |
3543 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3544 | get_identifier (PREFIX("caf_error_stop")), | |
3545 | void_type_node, 1, gfc_int4_type_node); | |
3546 | /* CAF's ERROR STOP doesn't return. */ | |
3547 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3548 | ||
3549 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3550 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3551 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3552 | /* CAF's ERROR STOP doesn't return. */ | |
3553 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3554 | |
ba4d9b7e | 3555 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
3556 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", | |
3557 | void_type_node, 1, gfc_int4_type_node); | |
3558 | /* CAF's STOP doesn't return. */ | |
3559 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3560 | ||
3561 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
3562 | get_identifier (PREFIX("caf_stop_str")), ".R.", | |
3563 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3564 | /* CAF's STOP doesn't return. */ | |
3565 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3566 | ||
97b9ac34 | 3567 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3568 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3569 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3570 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3571 | ||
3572 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3573 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3574 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3575 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3576 | ||
3577 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3578 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3579 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
3580 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3581 | integer_type_node, integer_type_node); | |
3582 | ||
3583 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3584 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3585 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3586 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3587 | integer_type_node, integer_type_node); | |
3588 | ||
498b946e | 3589 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3590 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3591 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3592 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3593 | ||
3594 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3595 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3596 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
498b946e | 3597 | pint_type, pchar_type_node, integer_type_node); |
3598 | ||
bd47f0bc | 3599 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3600 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3601 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3602 | pint_type, pchar_type_node, integer_type_node); | |
3603 | ||
3604 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3605 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3606 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3607 | pint_type, pchar_type_node, integer_type_node); | |
3608 | ||
3609 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3610 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3611 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3612 | pint_type, pint_type); | |
3613 | ||
52306a18 | 3614 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3615 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3616 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3617 | pint_type, pchar_type_node, integer_type_node); | |
3618 | ||
79ed4a8e | 3619 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3620 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3621 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3622 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3623 | ||
3624 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3625 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3626 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3627 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3628 | ||
e39efcef | 3629 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3630 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3631 | void_type_node, 8, pvoid_type_node, | |
3632 | build_pointer_type (build_varargs_function_type_list (void_type_node, | |
3633 | NULL_TREE)), | |
3634 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3635 | integer_type_node, integer_type_node); | |
3636 | ||
79ed4a8e | 3637 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3638 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3639 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3640 | pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3641 | } |
3642 | ||
4ee9c684 | 3643 | gfc_build_intrinsic_function_decls (); |
3644 | gfc_build_intrinsic_lib_fndecls (); | |
3645 | gfc_build_io_library_fndecls (); | |
3646 | } | |
3647 | ||
3648 | ||
231e961a | 3649 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3650 | |
c5faa799 | 3651 | static void |
3652 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3653 | gfc_wrapped_block *block) | |
4ee9c684 | 3654 | { |
c5faa799 | 3655 | stmtblock_t init; |
4ee9c684 | 3656 | |
b9c7fce7 | 3657 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3658 | |
c5faa799 | 3659 | gfc_start_block (&init); |
4ee9c684 | 3660 | |
3661 | /* Evaluate the string length expression. */ | |
c5faa799 | 3662 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3663 | |
c5faa799 | 3664 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3665 | |
c5faa799 | 3666 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3667 | } |
3668 | ||
3669 | ||
3670 | /* Allocate and cleanup an automatic character variable. */ | |
3671 | ||
c5faa799 | 3672 | static void |
3673 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3674 | { |
c5faa799 | 3675 | stmtblock_t init; |
4ee9c684 | 3676 | tree decl; |
4ee9c684 | 3677 | tree tmp; |
3678 | ||
22d678e8 | 3679 | gcc_assert (sym->backend_decl); |
eeebe20b | 3680 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3681 | |
3714c8b6 | 3682 | gfc_init_block (&init); |
4ee9c684 | 3683 | |
3684 | /* Evaluate the string length expression. */ | |
c5faa799 | 3685 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3686 | |
c5faa799 | 3687 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3688 | |
4ee9c684 | 3689 | decl = sym->backend_decl; |
3690 | ||
afcf285e | 3691 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3692 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3693 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3694 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3695 | |
c5faa799 | 3696 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3697 | } |
3698 | ||
c8f1568f | 3699 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3700 | ||
c5faa799 | 3701 | static void |
3702 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3703 | { |
c5faa799 | 3704 | stmtblock_t init; |
c8f1568f | 3705 | |
3706 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3707 | gfc_start_block (&init); |
c8f1568f | 3708 | |
3709 | /* Set the initial value to length. See the comments in | |
3710 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3711 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3712 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3713 | |
c5faa799 | 3714 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3715 | } |
3716 | ||
d4163395 | 3717 | static void |
3718 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3719 | { | |
3720 | tree t = *tp, var, val; | |
3721 | ||
3722 | if (t == NULL || t == error_mark_node) | |
3723 | return; | |
3724 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3725 | return; | |
3726 | ||
3727 | if (TREE_CODE (t) == SAVE_EXPR) | |
3728 | { | |
3729 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3730 | { | |
3731 | *tp = TREE_OPERAND (t, 0); | |
3732 | return; | |
3733 | } | |
3734 | val = TREE_OPERAND (t, 0); | |
3735 | } | |
3736 | else | |
3737 | val = t; | |
3738 | ||
3739 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3740 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3741 | gfc_add_modify (body, var, val); |
d4163395 | 3742 | if (TREE_CODE (t) == SAVE_EXPR) |
3743 | TREE_OPERAND (t, 0) = var; | |
3744 | *tp = var; | |
3745 | } | |
3746 | ||
3747 | static void | |
3748 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3749 | { | |
3750 | tree t; | |
3751 | ||
3752 | if (type == NULL || type == error_mark_node) | |
3753 | return; | |
3754 | ||
3755 | type = TYPE_MAIN_VARIANT (type); | |
3756 | ||
3757 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3758 | { | |
3759 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3760 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3761 | ||
3762 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3763 | { | |
3764 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3765 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3766 | } | |
3767 | } | |
3768 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3769 | { | |
3770 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3771 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3772 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3773 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3774 | ||
3775 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3776 | { | |
3777 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3778 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3779 | } | |
3780 | } | |
3781 | } | |
3782 | ||
3783 | /* Make sure all type sizes and array domains are either constant, | |
3784 | or variable or parameter decls. This is a simplified variant | |
3785 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3786 | variables in the expressions have been gimplified yet. | |
3787 | As type sizes and domains for various variable length arrays | |
3788 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3789 | time, without this routine gimplify_type_sizes in the middle-end | |
3790 | could result in the type sizes being gimplified earlier than where | |
3791 | those variables are initialized. */ | |
3792 | ||
3793 | void | |
3794 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3795 | { | |
3796 | tree type = TREE_TYPE (sym->backend_decl); | |
3797 | ||
3798 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3799 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3800 | { | |
3801 | if (! current_fake_result_decl) | |
3802 | return; | |
3803 | ||
3804 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3805 | } | |
3806 | ||
3807 | while (POINTER_TYPE_P (type)) | |
3808 | type = TREE_TYPE (type); | |
3809 | ||
3810 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3811 | { | |
3812 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3813 | ||
3814 | while (POINTER_TYPE_P (etype)) | |
3815 | etype = TREE_TYPE (etype); | |
3816 | ||
3817 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3818 | } | |
3819 | ||
3820 | gfc_trans_vla_type_sizes_1 (type, body); | |
3821 | } | |
3822 | ||
4ee9c684 | 3823 | |
f0d4969f | 3824 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3825 | and using trans_assignment to do the work. Set dealloc to false |
3826 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3827 | void |
3828 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3829 | { |
f0d4969f | 3830 | gfc_expr *e; |
87114d2e | 3831 | tree tmp; |
3832 | tree present; | |
3833 | ||
c5faa799 | 3834 | gcc_assert (block); |
3835 | ||
f0d4969f | 3836 | gcc_assert (!sym->attr.allocatable); |
3837 | gfc_set_sym_referenced (sym); | |
3838 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3839 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3840 | if (sym->attr.dummy && (sym->attr.optional |
3841 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3842 | { |
f0d4969f | 3843 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3844 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3845 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3846 | } |
c5faa799 | 3847 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3848 | gfc_free_expr (e); |
87114d2e | 3849 | } |
3850 | ||
3851 | ||
8714fc76 | 3852 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3853 | them their default initializer, if they do not have allocatable | |
293d72e0 | 3854 | components, they have their allocatable components deallocated. */ |
8714fc76 | 3855 | |
c5faa799 | 3856 | static void |
3857 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3858 | { |
c5faa799 | 3859 | stmtblock_t init; |
f0d4969f | 3860 | gfc_formal_arglist *f; |
8714fc76 | 3861 | tree tmp; |
5907c3ea | 3862 | tree present; |
f0d4969f | 3863 | |
c5faa799 | 3864 | gfc_init_block (&init); |
6777213b | 3865 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3866 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3867 | && !f->sym->attr.pointer |
3868 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3869 | { |
942ba353 | 3870 | tmp = NULL_TREE; |
3871 | ||
3872 | /* Note: Allocatables are excluded as they are already handled | |
3873 | by the caller. */ | |
3874 | if (!f->sym->attr.allocatable | |
3875 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3876 | { |
942ba353 | 3877 | stmtblock_t block; |
3878 | gfc_expr *e; | |
3879 | ||
3880 | gfc_init_block (&block); | |
3881 | f->sym->attr.referenced = 1; | |
3882 | e = gfc_lval_expr_from_sym (f->sym); | |
3883 | gfc_add_finalizer_call (&block, e); | |
3884 | gfc_free_expr (e); | |
3885 | tmp = gfc_finish_block (&block); | |
3886 | } | |
5907c3ea | 3887 | |
942ba353 | 3888 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
3889 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
3890 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
3891 | f->sym->backend_decl, | |
3892 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3893 | |
942ba353 | 3894 | if (tmp != NULL_TREE && (f->sym->attr.optional |
3895 | || f->sym->ns->proc_name->attr.entry_master)) | |
3896 | { | |
3897 | present = gfc_conv_expr_present (f->sym); | |
3898 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3899 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 3900 | } |
942ba353 | 3901 | |
3902 | if (tmp != NULL_TREE) | |
3903 | gfc_add_expr_to_block (&init, tmp); | |
3904 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 3905 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3906 | } |
c56d57d6 | 3907 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3908 | && f->sym->ts.type == BT_CLASS | |
3909 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 3910 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 3911 | { |
942ba353 | 3912 | stmtblock_t block; |
3913 | gfc_expr *e; | |
3914 | ||
3915 | gfc_init_block (&block); | |
3916 | f->sym->attr.referenced = 1; | |
3917 | e = gfc_lval_expr_from_sym (f->sym); | |
3918 | gfc_add_finalizer_call (&block, e); | |
3919 | gfc_free_expr (e); | |
3920 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 3921 | |
3922 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3923 | { | |
3924 | present = gfc_conv_expr_present (f->sym); | |
3925 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3926 | present, tmp, | |
3927 | build_empty_stmt (input_location)); | |
3928 | } | |
3929 | ||
3930 | gfc_add_expr_to_block (&init, tmp); | |
3931 | } | |
f0d4969f | 3932 | |
c5faa799 | 3933 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3934 | } |
3935 | ||
87114d2e | 3936 | |
b345a09f | 3937 | /* Helper function to manage deferred string lengths. */ |
3938 | ||
3939 | static tree | |
3940 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
3941 | locus *loc) | |
3942 | { | |
3943 | tree tmp; | |
3944 | ||
3945 | /* Character length passed by reference. */ | |
3946 | tmp = sym->ts.u.cl->passed_length; | |
3947 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3948 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3949 | ||
3950 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3951 | /* Zero the string length when entering the scope. */ | |
3952 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
3953 | build_int_cst (gfc_charlen_type_node, 0)); | |
3954 | else | |
3955 | { | |
3956 | tree tmp2; | |
3957 | ||
3958 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
3959 | gfc_charlen_type_node, | |
3960 | sym->ts.u.cl->backend_decl, tmp); | |
3961 | if (sym->attr.optional) | |
3962 | { | |
3963 | tree present = gfc_conv_expr_present (sym); | |
3964 | tmp2 = build3_loc (input_location, COND_EXPR, | |
3965 | void_type_node, present, tmp2, | |
3966 | build_empty_stmt (input_location)); | |
3967 | } | |
3968 | gfc_add_expr_to_block (init, tmp2); | |
3969 | } | |
3970 | ||
3971 | gfc_restore_backend_locus (loc); | |
3972 | ||
3973 | /* Pass the final character length back. */ | |
3974 | if (sym->attr.intent != INTENT_IN) | |
3975 | { | |
3976 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3977 | gfc_charlen_type_node, tmp, | |
3978 | sym->ts.u.cl->backend_decl); | |
3979 | if (sym->attr.optional) | |
3980 | { | |
3981 | tree present = gfc_conv_expr_present (sym); | |
3982 | tmp = build3_loc (input_location, COND_EXPR, | |
3983 | void_type_node, present, tmp, | |
3984 | build_empty_stmt (input_location)); | |
3985 | } | |
3986 | } | |
3987 | else | |
3988 | tmp = NULL_TREE; | |
3989 | ||
3990 | return tmp; | |
3991 | } | |
3992 | ||
4ee9c684 | 3993 | /* Generate function entry and exit code, and add it to the function body. |
3994 | This includes: | |
f888a3fb | 3995 | Allocation and initialization of array variables. |
4ee9c684 | 3996 | Allocation of character string variables. |
c8f1568f | 3997 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3998 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3999 | Initialization of ASSOCIATE names. |
0a96a7cc | 4000 | Automatic deallocation. */ |
4ee9c684 | 4001 | |
89ac8ba1 | 4002 | void |
4003 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 4004 | { |
4005 | locus loc; | |
4006 | gfc_symbol *sym; | |
d4163395 | 4007 | gfc_formal_arglist *f; |
c5faa799 | 4008 | stmtblock_t tmpblock; |
25dd7350 | 4009 | bool seen_trans_deferred_array = false; |
617125a6 | 4010 | tree tmp = NULL; |
4011 | gfc_expr *e; | |
4012 | gfc_se se; | |
4013 | stmtblock_t init; | |
4ee9c684 | 4014 | |
4015 | /* Deal with implicit return variables. Explicit return variables will | |
4016 | already have been added. */ | |
4017 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4018 | { | |
4019 | if (!current_fake_result_decl) | |
4020 | { | |
c6871095 | 4021 | gfc_entry_list *el = NULL; |
4022 | if (proc_sym->attr.entry_master) | |
4023 | { | |
4024 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4025 | if (el->sym != el->sym->result) | |
4026 | break; | |
4027 | } | |
fa7b6574 | 4028 | /* TODO: move to the appropriate place in resolve.c. */ |
4029 | if (warn_return_type && el == NULL) | |
4166acc7 | 4030 | gfc_warning (OPT_Wreturn_type, |
4031 | "Return value of function %qs at %L not set", | |
fa7b6574 | 4032 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 4033 | } |
c6871095 | 4034 | else if (proc_sym->as) |
4ee9c684 | 4035 | { |
d4163395 | 4036 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 4037 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 4038 | |
4039 | /* An automatic character length, pointer array result. */ | |
4040 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 4041 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
b345a09f | 4042 | { |
4043 | tmp = NULL; | |
4044 | if (proc_sym->ts.deferred) | |
4045 | { | |
4046 | gfc_save_backend_locus (&loc); | |
4047 | gfc_set_backend_locus (&proc_sym->declared_at); | |
4048 | gfc_start_block (&init); | |
4049 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4050 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4051 | } | |
4052 | else | |
4053 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4054 | } | |
4ee9c684 | 4055 | } |
4056 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4057 | { | |
617125a6 | 4058 | if (proc_sym->ts.deferred) |
4059 | { | |
4060 | tmp = NULL; | |
da2c4122 | 4061 | gfc_save_backend_locus (&loc); |
4062 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 4063 | gfc_start_block (&init); |
4064 | /* Zero the string length on entry. */ | |
4065 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4066 | build_int_cst (gfc_charlen_type_node, 0)); | |
4067 | /* Null the pointer. */ | |
4068 | e = gfc_lval_expr_from_sym (proc_sym); | |
4069 | gfc_init_se (&se, NULL); | |
4070 | se.want_pointer = 1; | |
4071 | gfc_conv_expr (&se, e); | |
4072 | gfc_free_expr (e); | |
4073 | tmp = se.expr; | |
4074 | gfc_add_modify (&init, tmp, | |
4075 | fold_convert (TREE_TYPE (se.expr), | |
4076 | null_pointer_node)); | |
da2c4122 | 4077 | gfc_restore_backend_locus (&loc); |
617125a6 | 4078 | |
4079 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 4080 | tmp = proc_sym->ts.u.cl->backend_decl; |
b345a09f | 4081 | if (TREE_CODE (tmp) != INDIRECT_REF |
4082 | && proc_sym->ts.u.cl->passed_length) | |
ddcfeaf1 | 4083 | { |
a4731200 | 4084 | tmp = proc_sym->ts.u.cl->passed_length; |
4085 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4086 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4087 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4088 | gfc_charlen_type_node, tmp, | |
4089 | proc_sym->ts.u.cl->backend_decl); | |
ddcfeaf1 | 4090 | } |
4091 | else | |
4092 | tmp = NULL_TREE; | |
4093 | ||
617125a6 | 4094 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4095 | } | |
4096 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 4097 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4098 | } |
4099 | else | |
829d7a08 | 4100 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4101 | } |
4102 | ||
87114d2e | 4103 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4104 | should be done here so that the offsets and lbounds of arrays | |
4105 | are available. */ | |
da2c4122 | 4106 | gfc_save_backend_locus (&loc); |
4107 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4108 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4109 | gfc_restore_backend_locus (&loc); |
87114d2e | 4110 | |
4ee9c684 | 4111 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4112 | { | |
6b3ceb4e | 4113 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4114 | && (sym->ts.u.derived->attr.alloc_comp | |
4115 | || gfc_is_finalizable (sym->ts.u.derived, | |
4116 | NULL)); | |
8f3f9eab | 4117 | if (sym->assoc) |
3c82e013 | 4118 | continue; |
4119 | ||
a56d63bc | 4120 | if (sym->attr.subref_array_pointer |
4121 | && GFC_DECL_SPAN (sym->backend_decl) | |
4122 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
4123 | { | |
4124 | gfc_init_block (&tmpblock); | |
4125 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
4126 | build_int_cst (gfc_array_index_type, 0)); | |
4127 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4128 | NULL_TREE); | |
4129 | } | |
4130 | ||
85ae3cab | 4131 | if (sym->ts.type == BT_CLASS |
eb106faf | 4132 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4133 | && CLASS_DATA (sym)->attr.allocatable) |
4134 | { | |
4135 | tree vptr; | |
4136 | ||
4137 | if (UNLIMITED_POLY (sym)) | |
4138 | vptr = null_pointer_node; | |
4139 | else | |
4140 | { | |
4141 | gfc_symbol *vsym; | |
4142 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4143 | vptr = gfc_get_symbol_decl (vsym); | |
4144 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4145 | } | |
4146 | ||
4147 | if (CLASS_DATA (sym)->attr.dimension | |
4148 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4149 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4150 | { |
4151 | tmp = gfc_class_data_get (sym->backend_decl); | |
4152 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4153 | } | |
4154 | else | |
4155 | tmp = null_pointer_node; | |
4156 | ||
4157 | DECL_INITIAL (sym->backend_decl) | |
4158 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4159 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4160 | } | |
b345a09f | 4161 | else if ((sym->attr.dimension || sym->attr.codimension |
4162 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
4ee9c684 | 4163 | { |
c6793847 | 4164 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4165 | symbol_attribute *array_attr; | |
4166 | gfc_array_spec *as; | |
b345a09f | 4167 | array_type type_of_array; |
c6793847 | 4168 | |
4169 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4170 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4171 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
b345a09f | 4172 | type_of_array = as->type; |
4173 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4174 | type_of_array = AS_EXPLICIT; | |
4175 | switch (type_of_array) | |
4ee9c684 | 4176 | { |
4177 | case AS_EXPLICIT: | |
4178 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4179 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4180 | /* Allocatable and pointer arrays need to processed |
4181 | explicitly. */ | |
4182 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4183 | || (sym->ts.type == BT_CLASS | |
4184 | && CLASS_DATA (sym)->attr.class_pointer) | |
4185 | || array_attr->allocatable) | |
4ee9c684 | 4186 | { |
4187 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4188 | { |
4189 | gfc_save_backend_locus (&loc); | |
4190 | gfc_set_backend_locus (&sym->declared_at); | |
4191 | gfc_trans_static_array_pointer (sym); | |
4192 | gfc_restore_backend_locus (&loc); | |
4193 | } | |
4ee9c684 | 4194 | else |
25dd7350 | 4195 | { |
4196 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4197 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4198 | } |
4ee9c684 | 4199 | } |
c6793847 | 4200 | else if (sym->attr.codimension |
4201 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4202 | { |
4203 | gfc_init_block (&tmpblock); | |
4204 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4205 | &tmpblock, sym); | |
4206 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4207 | NULL_TREE); | |
4208 | continue; | |
4209 | } | |
197423f5 | 4210 | else |
4ee9c684 | 4211 | { |
da2c4122 | 4212 | gfc_save_backend_locus (&loc); |
4213 | gfc_set_backend_locus (&sym->declared_at); | |
4214 | ||
6b3ceb4e | 4215 | if (alloc_comp_or_fini) |
25dd7350 | 4216 | { |
4217 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4218 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4219 | } |
f0d4969f | 4220 | else if (sym->ts.type == BT_DERIVED |
4221 | && sym->value | |
4222 | && !sym->attr.data | |
4223 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4224 | { |
4225 | gfc_start_block (&tmpblock); | |
4226 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4227 | gfc_add_init_cleanup (block, |
c5faa799 | 4228 | gfc_finish_block (&tmpblock), |
4229 | NULL_TREE); | |
4230 | } | |
25dd7350 | 4231 | |
c5faa799 | 4232 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4233 | sym, block); |
4671339c | 4234 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4235 | } |
4236 | break; | |
4237 | ||
4238 | case AS_ASSUMED_SIZE: | |
4239 | /* Must be a dummy parameter. */ | |
c6793847 | 4240 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4241 | |
4242 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4243 | if (sym->attr.dummy) |
89ac8ba1 | 4244 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4245 | break; |
4ee9c684 | 4246 | |
4247 | case AS_ASSUMED_SHAPE: | |
4248 | /* Must be a dummy parameter. */ | |
22d678e8 | 4249 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4250 | |
89ac8ba1 | 4251 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4252 | break; |
4253 | ||
f00f6dd6 | 4254 | case AS_ASSUMED_RANK: |
4ee9c684 | 4255 | case AS_DEFERRED: |
25dd7350 | 4256 | seen_trans_deferred_array = true; |
89ac8ba1 | 4257 | gfc_trans_deferred_array (sym, block); |
b345a09f | 4258 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4259 | && sym->attr.result) | |
4260 | { | |
4261 | gfc_start_block (&init); | |
4262 | gfc_save_backend_locus (&loc); | |
4263 | gfc_set_backend_locus (&sym->declared_at); | |
4264 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4265 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4266 | } | |
4ee9c684 | 4267 | break; |
4268 | ||
4269 | default: | |
22d678e8 | 4270 | gcc_unreachable (); |
4ee9c684 | 4271 | } |
6b3ceb4e | 4272 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4273 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4274 | } |
fd23cc08 | 4275 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4276 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4277 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4278 | continue; |
617125a6 | 4279 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4280 | && (sym->attr.allocatable |
b345a09f | 4281 | || (sym->attr.pointer && sym->attr.result) |
456dd7d6 | 4282 | || (sym->ts.type == BT_CLASS |
4283 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4284 | { |
eb106faf | 4285 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4286 | { |
d0d776fb | 4287 | tree descriptor = NULL_TREE; |
4288 | ||
da2c4122 | 4289 | gfc_save_backend_locus (&loc); |
4290 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4291 | gfc_start_block (&init); |
617125a6 | 4292 | |
b345a09f | 4293 | if (!sym->attr.pointer) |
617125a6 | 4294 | { |
b345a09f | 4295 | /* Nullify and automatic deallocation of allocatable |
4296 | scalars. */ | |
4297 | e = gfc_lval_expr_from_sym (sym); | |
4298 | if (sym->ts.type == BT_CLASS) | |
4299 | gfc_add_data_component (e); | |
4300 | ||
4301 | gfc_init_se (&se, NULL); | |
4302 | if (sym->ts.type != BT_CLASS | |
4303 | || sym->ts.u.derived->attr.dimension | |
4304 | || sym->ts.u.derived->attr.codimension) | |
883d6776 | 4305 | { |
b345a09f | 4306 | se.want_pointer = 1; |
4307 | gfc_conv_expr (&se, e); | |
4308 | } | |
4309 | else if (sym->ts.type == BT_CLASS | |
4310 | && !CLASS_DATA (sym)->attr.dimension | |
4311 | && !CLASS_DATA (sym)->attr.codimension) | |
4312 | { | |
4313 | se.want_pointer = 1; | |
4314 | gfc_conv_expr (&se, e); | |
883d6776 | 4315 | } |
617125a6 | 4316 | else |
883d6776 | 4317 | { |
b345a09f | 4318 | se.descriptor_only = 1; |
4319 | gfc_conv_expr (&se, e); | |
4320 | descriptor = se.expr; | |
4321 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4322 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
883d6776 | 4323 | } |
b345a09f | 4324 | gfc_free_expr (e); |
617125a6 | 4325 | |
b345a09f | 4326 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
883d6776 | 4327 | { |
b345a09f | 4328 | /* Nullify when entering the scope. */ |
883d6776 | 4329 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
b345a09f | 4330 | TREE_TYPE (se.expr), se.expr, |
4331 | fold_convert (TREE_TYPE (se.expr), | |
4332 | null_pointer_node)); | |
883d6776 | 4333 | if (sym->attr.optional) |
4334 | { | |
4335 | tree present = gfc_conv_expr_present (sym); | |
4336 | tmp = build3_loc (input_location, COND_EXPR, | |
4337 | void_type_node, present, tmp, | |
4338 | build_empty_stmt (input_location)); | |
4339 | } | |
b345a09f | 4340 | gfc_add_expr_to_block (&init, tmp); |
883d6776 | 4341 | } |
617125a6 | 4342 | } |
b345a09f | 4343 | |
4344 | if ((sym->attr.dummy || sym->attr.result) | |
4345 | && sym->ts.type == BT_CHARACTER | |
4346 | && sym->ts.deferred | |
4347 | && sym->ts.u.cl->passed_length) | |
4348 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
da2c4122 | 4349 | else |
4350 | gfc_restore_backend_locus (&loc); | |
908e9973 | 4351 | |
4352 | /* Deallocate when leaving the scope. Nullifying is not | |
4353 | needed. */ | |
b345a09f | 4354 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
afb69dbf | 4355 | && !sym->ns->proc_name->attr.is_main_program) |
d0d776fb | 4356 | { |
4357 | if (sym->ts.type == BT_CLASS | |
4358 | && CLASS_DATA (sym)->attr.codimension) | |
4359 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4360 | NULL_TREE, NULL_TREE, | |
4361 | NULL_TREE, true, NULL, | |
4362 | true); | |
4363 | else | |
c23adf93 | 4364 | { |
4365 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
4366 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, | |
4367 | true, expr, sym->ts); | |
4368 | gfc_free_expr (expr); | |
4369 | } | |
d0d776fb | 4370 | } |
b345a09f | 4371 | |
afc44c79 | 4372 | if (sym->ts.type == BT_CLASS) |
4373 | { | |
4374 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4375 | gfc_symbol *vtab; |
afc44c79 | 4376 | tree rhs; |
da2c4122 | 4377 | |
4378 | gfc_save_backend_locus (&loc); | |
4379 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4380 | e = gfc_lval_expr_from_sym (sym); |
4381 | gfc_add_vptr_component (e); | |
4382 | gfc_init_se (&se, NULL); | |
4383 | se.want_pointer = 1; | |
4384 | gfc_conv_expr (&se, e); | |
4385 | gfc_free_expr (e); | |
a90fe829 | 4386 | if (UNLIMITED_POLY (sym)) |
4387 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4388 | else | |
4389 | { | |
4390 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4391 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4392 | gfc_get_symbol_decl (vtab)); | |
4393 | } | |
afc44c79 | 4394 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4395 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4396 | } |
4397 | ||
89ac8ba1 | 4398 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4399 | } |
0a96a7cc | 4400 | } |
617125a6 | 4401 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4402 | { | |
4403 | tree tmp = NULL; | |
4404 | stmtblock_t init; | |
4405 | ||
4406 | /* If we get to here, all that should be left are pointers. */ | |
4407 | gcc_assert (sym->attr.pointer); | |
4408 | ||
4409 | if (sym->attr.dummy) | |
4410 | { | |
4411 | gfc_start_block (&init); | |
b345a09f | 4412 | gfc_save_backend_locus (&loc); |
4413 | gfc_set_backend_locus (&sym->declared_at); | |
4414 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
617125a6 | 4415 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4416 | } | |
4417 | } | |
3e715c81 | 4418 | else if (sym->ts.deferred) |
4419 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4420 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4421 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4422 | else if (sym->ts.type == BT_CHARACTER) |
4423 | { | |
4671339c | 4424 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4425 | gfc_set_backend_locus (&sym->declared_at); |
4426 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4427 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4428 | else |
89ac8ba1 | 4429 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4430 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4431 | } |
c8f1568f | 4432 | else if (sym->attr.assign) |
4433 | { | |
4671339c | 4434 | gfc_save_backend_locus (&loc); |
c8f1568f | 4435 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4436 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4437 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4438 | } |
f0d4969f | 4439 | else if (sym->ts.type == BT_DERIVED |
4440 | && sym->value | |
4441 | && !sym->attr.data | |
4442 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4443 | { |
4444 | gfc_start_block (&tmpblock); | |
4445 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4446 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4447 | NULL_TREE); |
4448 | } | |
a90fe829 | 4449 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 4450 | gcc_unreachable (); |
4ee9c684 | 4451 | } |
4452 | ||
c5faa799 | 4453 | gfc_init_block (&tmpblock); |
d4163395 | 4454 | |
6777213b | 4455 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4456 | { |
4457 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4458 | { | |
eeebe20b | 4459 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4460 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4461 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4462 | } |
1e853e89 | 4463 | } |
d4163395 | 4464 | |
4465 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4466 | && current_fake_result_decl != NULL) | |
4467 | { | |
eeebe20b | 4468 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4469 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4470 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4471 | } |
4472 | ||
89ac8ba1 | 4473 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4474 | } |
4475 | ||
b345a09f | 4476 | |
b594087e | 4477 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4478 | { |
2ef51f0e | 4479 | typedef const char *compare_type; |
df4d540f | 4480 | |
2ef51f0e | 4481 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4482 | static bool | |
4483 | equal (module_htab_entry *a, const char *b) | |
4484 | { | |
4485 | return !strcmp (a->name, b); | |
4486 | } | |
4487 | }; | |
4488 | ||
4489 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4490 | |
4491 | /* Hash and equality functions for module_htab's decls. */ | |
4492 | ||
2ef51f0e | 4493 | hashval_t |
4494 | module_decl_hasher::hash (tree t) | |
df4d540f | 4495 | { |
df4d540f | 4496 | const_tree n = DECL_NAME (t); |
4497 | if (n == NULL_TREE) | |
4498 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4499 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4500 | } |
4501 | ||
2ef51f0e | 4502 | bool |
4503 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4504 | { |
df4d540f | 4505 | const_tree n1 = DECL_NAME (t1); |
4506 | if (n1 == NULL_TREE) | |
4507 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4508 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4509 | } |
4510 | ||
4511 | struct module_htab_entry * | |
4512 | gfc_find_module (const char *name) | |
4513 | { | |
df4d540f | 4514 | if (! module_htab) |
2ef51f0e | 4515 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4516 | |
2ef51f0e | 4517 | module_htab_entry **slot |
4518 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4519 | if (*slot == NULL) |
4520 | { | |
25a27413 | 4521 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4522 | |
4523 | entry->name = gfc_get_string (name); | |
2ef51f0e | 4524 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4525 | *slot = entry; | |
df4d540f | 4526 | } |
2ef51f0e | 4527 | return *slot; |
df4d540f | 4528 | } |
4529 | ||
4530 | void | |
4531 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4532 | { | |
df4d540f | 4533 | const char *name; |
4534 | ||
4535 | if (DECL_NAME (decl)) | |
4536 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4537 | else | |
4538 | { | |
4539 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4540 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4541 | } | |
2ef51f0e | 4542 | tree *slot |
4543 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4544 | INSERT); | |
df4d540f | 4545 | if (*slot == NULL) |
2ef51f0e | 4546 | *slot = decl; |
df4d540f | 4547 | } |
4548 | ||
c40a5c1b | 4549 | |
4550 | /* Generate debugging symbols for namelists. This function must come after | |
4551 | generate_local_decl to ensure that the variables in the namelist are | |
4552 | already declared. */ | |
4553 | ||
4554 | static tree | |
4555 | generate_namelist_decl (gfc_symbol * sym) | |
4556 | { | |
4557 | gfc_namelist *nml; | |
4558 | tree decl; | |
4559 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4560 | ||
4561 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4562 | for (nml = sym->namelist; nml; nml = nml->next) | |
4563 | { | |
4564 | if (nml->sym->backend_decl == NULL_TREE) | |
4565 | { | |
4566 | nml->sym->attr.referenced = 1; | |
4567 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4568 | } | |
0a32260c | 4569 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4570 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4571 | } | |
4572 | ||
4573 | decl = make_node (NAMELIST_DECL); | |
4574 | TREE_TYPE (decl) = void_type_node; | |
4575 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4576 | DECL_NAME (decl) = get_identifier (sym->name); | |
4577 | return decl; | |
4578 | } | |
4579 | ||
4580 | ||
4ee9c684 | 4581 | /* Output an initialized decl for a module variable. */ |
4582 | ||
4583 | static void | |
4584 | gfc_create_module_variable (gfc_symbol * sym) | |
4585 | { | |
4586 | tree decl; | |
4ee9c684 | 4587 | |
d77f260f | 4588 | /* Module functions with alternate entries are dealt with later and |
4589 | would get caught by the next condition. */ | |
4590 | if (sym->attr.entry) | |
4591 | return; | |
4592 | ||
c5d33754 | 4593 | /* Make sure we convert the types of the derived types from iso_c_binding |
4594 | into (void *). */ | |
4595 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4596 | && sym->ts.type == BT_DERIVED) | |
4597 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4598 | ||
df4d540f | 4599 | if (sym->attr.flavor == FL_DERIVED |
4600 | && sym->backend_decl | |
4601 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4602 | { | |
4603 | decl = sym->backend_decl; | |
4604 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4605 | |
fe9d2f5a | 4606 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 4607 | { |
4608 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4609 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4610 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4611 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4612 | == sym->ns->proc_name->backend_decl); | |
4613 | } | |
df4d540f | 4614 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4615 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4616 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4617 | } | |
4618 | ||
cf269acc | 4619 | /* Only output variables, procedure pointers and array valued, |
4620 | or derived type, parameters. */ | |
4ee9c684 | 4621 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4622 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4623 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4624 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4625 | return; |
4626 | ||
df4d540f | 4627 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4628 | { | |
4629 | decl = sym->backend_decl; | |
16a40513 | 4630 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4631 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4632 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4633 | gfc_module_add_decl (cur_module, decl); | |
4634 | } | |
4635 | ||
d43a7f7f | 4636 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4637 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 4638 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4639 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4640 | return; |
4641 | ||
2b685f8e | 4642 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4643 | if (sym->backend_decl |
df4d540f | 4644 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4645 | return; | |
2b685f8e | 4646 | |
23d075f4 | 4647 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4648 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4649 | sym->name); | |
4ee9c684 | 4650 | |
92983bfd | 4651 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4652 | && (sym->attr.access == ACCESS_UNKNOWN | |
4653 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4654 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4655 | && flag_module_private)))) |
92983bfd | 4656 | sym->attr.access = ACCESS_PRIVATE; |
4657 | ||
4658 | if (warn_unused_variable && !sym->attr.referenced | |
4659 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4660 | gfc_warning (OPT_Wunused_value, |
4661 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4662 | sym->name, &sym->declared_at); |
4663 | ||
4ee9c684 | 4664 | /* We always want module variables to be created. */ |
4665 | sym->attr.referenced = 1; | |
4666 | /* Create the decl. */ | |
4667 | decl = gfc_get_symbol_decl (sym); | |
4668 | ||
4ee9c684 | 4669 | /* Create the variable. */ |
4670 | pushdecl (decl); | |
df4d540f | 4671 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4672 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4673 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4674 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4675 | |
4676 | /* Also add length of strings. */ | |
4677 | if (sym->ts.type == BT_CHARACTER) | |
4678 | { | |
4679 | tree length; | |
4680 | ||
eeebe20b | 4681 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4682 | gcc_assert (length || sym->attr.proc_pointer); |
4683 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4684 | { |
4685 | pushdecl (length); | |
b2c4af5e | 4686 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4687 | } |
4688 | } | |
a961ca30 | 4689 | |
4690 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4691 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4692 | has_coarray_vars = true; | |
4ee9c684 | 4693 | } |
4694 | ||
51d9479b | 4695 | /* Emit debug information for USE statements. */ |
df4d540f | 4696 | |
4697 | static void | |
4698 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4699 | { | |
4700 | gfc_use_list *use_stmt; | |
4701 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4702 | { | |
4703 | struct module_htab_entry *entry | |
4704 | = gfc_find_module (use_stmt->module_name); | |
4705 | gfc_use_rename *rent; | |
4706 | ||
4707 | if (entry->namespace_decl == NULL) | |
4708 | { | |
4709 | entry->namespace_decl | |
e60a6f7b | 4710 | = build_decl (input_location, |
4711 | NAMESPACE_DECL, | |
df4d540f | 4712 | get_identifier (use_stmt->module_name), |
4713 | void_type_node); | |
4714 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4715 | } | |
51d9479b | 4716 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4717 | if (!use_stmt->only_flag) |
4718 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4719 | NULL_TREE, | |
4720 | ns->proc_name->backend_decl, | |
4721 | false); | |
4722 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4723 | { | |
4724 | tree decl, local_name; | |
df4d540f | 4725 | |
4726 | if (rent->op != INTRINSIC_NONE) | |
4727 | continue; | |
4728 | ||
2ef51f0e | 4729 | hashval_t hash = htab_hash_string (rent->use_name); |
4730 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
4731 | INSERT); | |
df4d540f | 4732 | if (*slot == NULL) |
4733 | { | |
4734 | gfc_symtree *st; | |
4735 | ||
4736 | st = gfc_find_symtree (ns->sym_root, | |
4737 | rent->local_name[0] | |
4738 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4739 | |
4740 | /* The following can happen if a derived type is renamed. */ | |
4741 | if (!st) | |
4742 | { | |
4743 | char *name; | |
4744 | name = xstrdup (rent->local_name[0] | |
4745 | ? rent->local_name : rent->use_name); | |
4746 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4747 | st = gfc_find_symtree (ns->sym_root, name); | |
4748 | free (name); | |
4749 | gcc_assert (st); | |
4750 | } | |
857c96ba | 4751 | |
4752 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4753 | local symbol (see PR41062). */ | |
4754 | if (!st->n.sym->attr.use_assoc) | |
4755 | continue; | |
4756 | ||
51d9479b | 4757 | if (st->n.sym->backend_decl |
4758 | && DECL_P (st->n.sym->backend_decl) | |
4759 | && st->n.sym->module | |
4760 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4761 | { |
51d9479b | 4762 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4763 | || (TREE_CODE (st->n.sym->backend_decl) | |
4764 | != VAR_DECL)); | |
df4d540f | 4765 | decl = copy_node (st->n.sym->backend_decl); |
4766 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4767 | DECL_EXTERNAL (decl) = 1; | |
4768 | DECL_IGNORED_P (decl) = 0; | |
4769 | DECL_INITIAL (decl) = NULL_TREE; | |
4770 | } | |
c40a5c1b | 4771 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
4772 | && st->n.sym->attr.use_only | |
4773 | && st->n.sym->module | |
4774 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
4775 | == 0) | |
4776 | { | |
4777 | decl = generate_namelist_decl (st->n.sym); | |
4778 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4779 | DECL_EXTERNAL (decl) = 1; | |
4780 | DECL_IGNORED_P (decl) = 0; | |
4781 | DECL_INITIAL (decl) = NULL_TREE; | |
4782 | } | |
df4d540f | 4783 | else |
4784 | { | |
4785 | *slot = error_mark_node; | |
2ef51f0e | 4786 | entry->decls->clear_slot (slot); |
df4d540f | 4787 | continue; |
4788 | } | |
4789 | *slot = decl; | |
4790 | } | |
4791 | decl = (tree) *slot; | |
4792 | if (rent->local_name[0]) | |
4793 | local_name = get_identifier (rent->local_name); | |
4794 | else | |
4795 | local_name = NULL_TREE; | |
51d9479b | 4796 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4797 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4798 | ns->proc_name->backend_decl, | |
4799 | !use_stmt->only_flag); | |
4800 | } | |
4801 | } | |
4ee9c684 | 4802 | } |
4803 | ||
51d9479b | 4804 | |
2eb674c9 | 4805 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4806 | will handle. */ | |
4807 | ||
4808 | static bool | |
4809 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4810 | bool pointer) | |
4811 | { | |
4812 | gfc_constructor *c; | |
4813 | gfc_component *cm; | |
4814 | ||
4815 | if (pointer) | |
4816 | return true; | |
4817 | else if (array) | |
4818 | { | |
4819 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4820 | return true; | |
4821 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4822 | return check_constant_initializer (expr, ts, false, false); | |
4823 | else if (expr->expr_type != EXPR_ARRAY) | |
4824 | return false; | |
126387b5 | 4825 | for (c = gfc_constructor_first (expr->value.constructor); |
4826 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4827 | { |
4828 | if (c->iterator) | |
4829 | return false; | |
4830 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4831 | { | |
4832 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4833 | return false; | |
4834 | } | |
4835 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4836 | return false; | |
4837 | } | |
4838 | return true; | |
4839 | } | |
4840 | else switch (ts->type) | |
4841 | { | |
4842 | case BT_DERIVED: | |
4843 | if (expr->expr_type != EXPR_STRUCTURE) | |
4844 | return false; | |
eeebe20b | 4845 | cm = expr->ts.u.derived->components; |
126387b5 | 4846 | for (c = gfc_constructor_first (expr->value.constructor); |
4847 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4848 | { |
4849 | if (!c->expr || cm->attr.allocatable) | |
4850 | continue; | |
4851 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4852 | cm->attr.dimension, | |
4853 | cm->attr.pointer)) | |
4854 | return false; | |
4855 | } | |
4856 | return true; | |
4857 | default: | |
4858 | return expr->expr_type == EXPR_CONSTANT; | |
4859 | } | |
4860 | } | |
4861 | ||
4862 | /* Emit debug info for parameters and unreferenced variables with | |
4863 | initializers. */ | |
4864 | ||
4865 | static void | |
4866 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4867 | { | |
4868 | tree decl; | |
4869 | ||
4870 | if (sym->attr.flavor != FL_PARAMETER | |
4871 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4872 | return; | |
4873 | ||
4874 | if (sym->backend_decl != NULL | |
4875 | || sym->value == NULL | |
4876 | || sym->attr.use_assoc | |
4877 | || sym->attr.dummy | |
4878 | || sym->attr.result | |
4879 | || sym->attr.function | |
4880 | || sym->attr.intrinsic | |
4881 | || sym->attr.pointer | |
4882 | || sym->attr.allocatable | |
4883 | || sym->attr.cray_pointee | |
4884 | || sym->attr.threadprivate | |
4885 | || sym->attr.is_bind_c | |
4886 | || sym->attr.subref_array_pointer | |
4887 | || sym->attr.assign) | |
4888 | return; | |
4889 | ||
4890 | if (sym->ts.type == BT_CHARACTER) | |
4891 | { | |
eeebe20b | 4892 | gfc_conv_const_charlen (sym->ts.u.cl); |
4893 | if (sym->ts.u.cl->backend_decl == NULL | |
4894 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4895 | return; |
4896 | } | |
eeebe20b | 4897 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4898 | return; |
4899 | ||
4900 | if (sym->as) | |
4901 | { | |
4902 | int n; | |
4903 | ||
4904 | if (sym->as->type != AS_EXPLICIT) | |
4905 | return; | |
4906 | for (n = 0; n < sym->as->rank; n++) | |
4907 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4908 | || sym->as->upper[n] == NULL | |
4909 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4910 | return; | |
4911 | } | |
4912 | ||
4913 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4914 | sym->attr.dimension, false)) | |
4915 | return; | |
4916 | ||
4fe73152 | 4917 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 4918 | return; |
4919 | ||
2eb674c9 | 4920 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4921 | decl = build_decl (input_location, |
4922 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4923 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4924 | if (sym->attr.flavor == FL_PARAMETER) | |
4925 | TREE_READONLY (decl) = 1; | |
4926 | gfc_set_decl_location (decl, &sym->declared_at); | |
4927 | if (sym->attr.dimension) | |
4928 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4929 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4930 | TREE_STATIC (decl) = 1; | |
4931 | TREE_USED (decl) = 1; | |
4932 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4933 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4934 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4935 | TREE_TYPE (decl), | |
4936 | sym->attr.dimension, | |
4937 | false, false); | |
3a1c9df2 | 4938 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 4939 | } |
4940 | ||
a961ca30 | 4941 | |
4942 | static void | |
4943 | generate_coarray_sym_init (gfc_symbol *sym) | |
4944 | { | |
4945 | tree tmp, size, decl, token; | |
bd47f0bc | 4946 | bool is_lock_type, is_event_type; |
498b946e | 4947 | int reg_type; |
a961ca30 | 4948 | |
4949 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 4950 | || sym->attr.use_assoc || !sym->attr.referenced |
4951 | || sym->attr.select_type_temporary) | |
a961ca30 | 4952 | return; |
4953 | ||
4954 | decl = sym->backend_decl; | |
4955 | TREE_USED(decl) = 1; | |
4956 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4957 | ||
498b946e | 4958 | is_lock_type = sym->ts.type == BT_DERIVED |
4959 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
4960 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
4961 | ||
bd47f0bc | 4962 | is_event_type = sym->ts.type == BT_DERIVED |
4963 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
4964 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
4965 | ||
a961ca30 | 4966 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
4967 | to make sure the variable is not optimized away. */ | |
4968 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4969 | ||
498b946e | 4970 | /* For lock types, we pass the array size as only the library knows the |
4971 | size of the variable. */ | |
bd47f0bc | 4972 | if (is_lock_type || is_event_type) |
498b946e | 4973 | size = gfc_index_one_node; |
4974 | else | |
4975 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 4976 | |
a90fe829 | 4977 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 4978 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
4979 | fold_convert (size_type_node, size), | |
4980 | build_int_cst (size_type_node, 1)); | |
4981 | ||
a961ca30 | 4982 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4983 | { | |
4984 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4985 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4986 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4987 | } |
4988 | ||
4989 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4990 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4991 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 4992 | if (is_lock_type) |
4993 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 4994 | else if (is_event_type) |
4995 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 4996 | else |
4997 | reg_type = GFC_CAF_COARRAY_STATIC; | |
a961ca30 | 4998 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, |
498b946e | 4999 | build_int_cst (integer_type_node, reg_type), |
a961ca30 | 5000 | token, null_pointer_node, /* token, stat. */ |
5001 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
5002 | build_int_cst (integer_type_node, 0)); | |
a961ca30 | 5003 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); |
5004 | ||
a961ca30 | 5005 | /* Handle "static" initializer. */ |
5006 | if (sym->value) | |
5007 | { | |
5008 | sym->attr.pointer = 1; | |
5009 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5010 | true, false); | |
5011 | sym->attr.pointer = 0; | |
5012 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5013 | } | |
5014 | } | |
5015 | ||
5016 | ||
5017 | /* Generate constructor function to initialize static, nonallocatable | |
5018 | coarrays. */ | |
5019 | ||
5020 | static void | |
5021 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5022 | { | |
5023 | tree fndecl, tmp, decl, save_fn_decl; | |
5024 | ||
5025 | save_fn_decl = current_function_decl; | |
5026 | push_function_context (); | |
5027 | ||
5028 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5029 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5030 | create_tmp_var_name ("_caf_init"), tmp); | |
5031 | ||
5032 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5033 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5034 | ||
5035 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5036 | DECL_ARTIFICIAL (decl) = 1; | |
5037 | DECL_IGNORED_P (decl) = 1; | |
5038 | DECL_CONTEXT (decl) = fndecl; | |
5039 | DECL_RESULT (fndecl) = decl; | |
5040 | ||
5041 | pushdecl (fndecl); | |
5042 | current_function_decl = fndecl; | |
5043 | announce_function (fndecl); | |
5044 | ||
5045 | rest_of_decl_compilation (fndecl, 0, 0); | |
5046 | make_decl_rtl (fndecl); | |
00cf115c | 5047 | allocate_struct_function (fndecl, false); |
a961ca30 | 5048 | |
cde2be84 | 5049 | pushlevel (); |
a961ca30 | 5050 | gfc_init_block (&caf_init_block); |
5051 | ||
5052 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5053 | ||
5054 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5055 | decl = getdecls (); | |
5056 | ||
cde2be84 | 5057 | poplevel (1, 1); |
a961ca30 | 5058 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5059 | ||
5060 | DECL_SAVED_TREE (fndecl) | |
5061 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5062 | DECL_INITIAL (fndecl)); | |
5063 | dump_function (TDI_original, fndecl); | |
5064 | ||
5065 | cfun->function_end_locus = input_location; | |
5066 | set_cfun (NULL); | |
5067 | ||
5068 | if (decl_function_context (fndecl)) | |
415d1b9a | 5069 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5070 | else |
35ee1c66 | 5071 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5072 | |
5073 | pop_function_context (); | |
5074 | current_function_decl = save_fn_decl; | |
5075 | } | |
5076 | ||
5077 | ||
c40a5c1b | 5078 | static void |
5079 | create_module_nml_decl (gfc_symbol *sym) | |
5080 | { | |
5081 | if (sym->attr.flavor == FL_NAMELIST) | |
5082 | { | |
5083 | tree decl = generate_namelist_decl (sym); | |
5084 | pushdecl (decl); | |
5085 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5086 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5087 | rest_of_decl_compilation (decl, 1, 0); | |
5088 | gfc_module_add_decl (cur_module, decl); | |
5089 | } | |
5090 | } | |
5091 | ||
5092 | ||
51d9479b | 5093 | /* Generate all the required code for module variables. */ |
5094 | ||
5095 | void | |
5096 | gfc_generate_module_vars (gfc_namespace * ns) | |
5097 | { | |
5098 | module_namespace = ns; | |
5099 | cur_module = gfc_find_module (ns->proc_name->name); | |
5100 | ||
5101 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5102 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5103 | ||
5104 | /* Generate COMMON blocks. */ | |
5105 | gfc_trans_common (ns); | |
5106 | ||
a961ca30 | 5107 | has_coarray_vars = false; |
5108 | ||
51d9479b | 5109 | /* Create decls for all the module variables. */ |
5110 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5111 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5112 | |
4fe73152 | 5113 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5114 | generate_coarray_init (ns); |
5115 | ||
51d9479b | 5116 | cur_module = NULL; |
5117 | ||
5118 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5119 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5120 | } |
5121 | ||
5122 | ||
4ee9c684 | 5123 | static void |
5124 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5125 | { | |
5126 | gfc_namespace *ns; | |
5127 | ||
5128 | /* We create all the prototypes before generating any code. */ | |
5129 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5130 | { | |
5131 | /* Skip namespaces from used modules. */ | |
5132 | if (ns->parent != parent) | |
5133 | continue; | |
5134 | ||
d896f9b3 | 5135 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5136 | } |
5137 | ||
5138 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5139 | { | |
5140 | /* Skip namespaces from used modules. */ | |
5141 | if (ns->parent != parent) | |
5142 | continue; | |
5143 | ||
5144 | gfc_generate_function_code (ns); | |
5145 | } | |
5146 | } | |
5147 | ||
5148 | ||
d95efb59 | 5149 | /* Drill down through expressions for the array specification bounds and |
5150 | character length calling generate_local_decl for all those variables | |
5151 | that have not already been declared. */ | |
5152 | ||
5153 | static void | |
5154 | generate_local_decl (gfc_symbol *); | |
5155 | ||
1acb400a | 5156 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5157 | |
1acb400a | 5158 | static bool |
5159 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5160 | int *f ATTRIBUTE_UNUSED) | |
5161 | { | |
5162 | if (e->expr_type != EXPR_VARIABLE | |
5163 | || sym == e->symtree->n.sym | |
d95efb59 | 5164 | || e->symtree->n.sym->mark |
5165 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5166 | return false; |
d95efb59 | 5167 | |
1acb400a | 5168 | generate_local_decl (e->symtree->n.sym); |
5169 | return false; | |
5170 | } | |
d95efb59 | 5171 | |
1acb400a | 5172 | static void |
5173 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5174 | { | |
5175 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5176 | } |
5177 | ||
5178 | ||
f6d0e37a | 5179 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5180 | |
5181 | static void | |
5182 | generate_dependency_declarations (gfc_symbol *sym) | |
5183 | { | |
5184 | int i; | |
5185 | ||
5186 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5187 | && sym->ts.u.cl |
5188 | && sym->ts.u.cl->length | |
5189 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5190 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5191 | |
5192 | if (sym->as && sym->as->rank) | |
5193 | { | |
5194 | for (i = 0; i < sym->as->rank; i++) | |
5195 | { | |
5196 | generate_expr_decls (sym, sym->as->lower[i]); | |
5197 | generate_expr_decls (sym, sym->as->upper[i]); | |
5198 | } | |
5199 | } | |
5200 | } | |
5201 | ||
5202 | ||
4ee9c684 | 5203 | /* Generate decls for all local variables. We do this to ensure correct |
5204 | handling of expressions which only appear in the specification of | |
5205 | other functions. */ | |
5206 | ||
5207 | static void | |
5208 | generate_local_decl (gfc_symbol * sym) | |
5209 | { | |
5210 | if (sym->attr.flavor == FL_VARIABLE) | |
5211 | { | |
a961ca30 | 5212 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5213 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5214 | has_coarray_vars = true; | |
5215 | ||
d95efb59 | 5216 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5217 | generate_dependency_declarations (sym); |
d95efb59 | 5218 | |
4ee9c684 | 5219 | if (sym->attr.referenced) |
8714fc76 | 5220 | gfc_get_symbol_decl (sym); |
4acad347 | 5221 | |
5222 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5223 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5224 | { |
4acad347 | 5225 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5226 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5227 | { |
5228 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5229 | gfc_warning (OPT_Wunused_dummy_argument, |
5230 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5231 | "INTENT(OUT) but was not set", sym->name, |
5232 | &sym->declared_at); | |
48cb4748 | 5233 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5234 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5235 | gfc_warning (OPT_Wunused_dummy_argument, |
5236 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5237 | "declared INTENT(OUT) but was not set and " |
5238 | "does not have a default initializer", | |
5239 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5240 | if (sym->backend_decl != NULL_TREE) |
5241 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5242 | } |
8290d53f | 5243 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5244 | { |
4166acc7 | 5245 | gfc_warning (OPT_Wunused_dummy_argument, |
5246 | "Unused dummy argument %qs at %L", sym->name, | |
5247 | &sym->declared_at); | |
90a4a5a6 | 5248 | if (sym->backend_decl != NULL_TREE) |
5249 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5250 | } | |
7c0ca46e | 5251 | } |
4acad347 | 5252 | |
f888a3fb | 5253 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5254 | block or a namelist. */ |
36609028 | 5255 | else if (warn_unused_variable |
1dbfac29 | 5256 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5257 | { |
1dbfac29 | 5258 | if (sym->attr.use_only) |
5259 | { | |
4166acc7 | 5260 | gfc_warning (OPT_Wunused_variable, |
5261 | "Unused module variable %qs which has been " | |
1dbfac29 | 5262 | "explicitly imported at %L", sym->name, |
5263 | &sym->declared_at); | |
5264 | if (sym->backend_decl != NULL_TREE) | |
5265 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5266 | } | |
5267 | else if (!sym->attr.use_assoc) | |
5268 | { | |
4166acc7 | 5269 | gfc_warning (OPT_Wunused_variable, |
5270 | "Unused variable %qs declared at %L", | |
1dbfac29 | 5271 | sym->name, &sym->declared_at); |
5272 | if (sym->backend_decl != NULL_TREE) | |
5273 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5274 | } | |
90a4a5a6 | 5275 | } |
8714fc76 | 5276 | |
d4163395 | 5277 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5278 | references the length variable, so force gfc_get_symbol_decl | |
5279 | even when not referenced. If optimize > 0, it will be optimized | |
5280 | away anyway. But do this only after emitting -Wunused-parameter | |
5281 | warning if requested. */ | |
8714fc76 | 5282 | if (sym->attr.dummy && !sym->attr.referenced |
5283 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5284 | && sym->ts.u.cl->backend_decl != NULL |
5285 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 5286 | { |
5287 | sym->attr.referenced = 1; | |
5288 | gfc_get_symbol_decl (sym); | |
5289 | } | |
76776e6d | 5290 | |
d0163401 | 5291 | /* INTENT(out) dummy arguments and result variables with allocatable |
5292 | components are reset by default and need to be set referenced to | |
5293 | generate the code for nullification and automatic lengths. */ | |
5294 | if (!sym->attr.referenced | |
8714fc76 | 5295 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5296 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5297 | && !sym->attr.pointer |
d0163401 | 5298 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5299 | || | |
5300 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5301 | { |
5302 | sym->attr.referenced = 1; | |
5303 | gfc_get_symbol_decl (sym); | |
5304 | } | |
5305 | ||
e72f979a | 5306 | /* Check for dependencies in the array specification and string |
5307 | length, adding the necessary declarations to the function. We | |
5308 | mark the symbol now, as well as in traverse_ns, to prevent | |
5309 | getting stuck in a circular dependency. */ | |
5310 | sym->mark = 1; | |
4ee9c684 | 5311 | } |
5dd246c1 | 5312 | else if (sym->attr.flavor == FL_PARAMETER) |
5313 | { | |
6ecfe89d | 5314 | if (warn_unused_parameter |
f326eb81 | 5315 | && !sym->attr.referenced) |
5316 | { | |
5317 | if (!sym->attr.use_assoc) | |
4166acc7 | 5318 | gfc_warning (OPT_Wunused_parameter, |
5319 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5320 | &sym->declared_at); |
5321 | else if (sym->attr.use_only) | |
4166acc7 | 5322 | gfc_warning (OPT_Wunused_parameter, |
5323 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5324 | "imported at %L", sym->name, &sym->declared_at); |
5325 | } | |
758c9897 | 5326 | |
5327 | if (sym->ns | |
5328 | && sym->ns->parent | |
5329 | && sym->ns->parent->code | |
5330 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5331 | { | |
5332 | if (sym->attr.referenced) | |
5333 | gfc_get_symbol_decl (sym); | |
5334 | sym->mark = 1; | |
5335 | } | |
5dd246c1 | 5336 | } |
fa7b6574 | 5337 | else if (sym->attr.flavor == FL_PROCEDURE) |
5338 | { | |
5339 | /* TODO: move to the appropriate place in resolve.c. */ | |
5340 | if (warn_return_type | |
5341 | && sym->attr.function | |
5342 | && sym->result | |
5343 | && sym != sym->result | |
5344 | && !sym->result->attr.referenced | |
5345 | && !sym->attr.use_assoc | |
5346 | && sym->attr.if_source != IFSRC_IFBODY) | |
5347 | { | |
4166acc7 | 5348 | gfc_warning (OPT_Wreturn_type, |
5349 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5350 | "%L not set", sym->result->name, sym->name, |
5351 | &sym->result->declared_at); | |
5352 | ||
5353 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5354 | sym->result->mark = 1; |
fa7b6574 | 5355 | } |
5356 | } | |
c5d33754 | 5357 | |
19ba2ad8 | 5358 | if (sym->attr.dummy == 1) |
5359 | { | |
5360 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5361 | procedures if they are passed by value. The tree type for them will | |
5362 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5363 | what C would do with characters passed by-value. The value attribute | |
5364 | implies the dummy is a scalar. */ | |
5365 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5366 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5367 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5368 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5369 | |
5370 | /* Unused procedure passed as dummy argument. */ | |
5371 | if (sym->attr.flavor == FL_PROCEDURE) | |
5372 | { | |
5373 | if (!sym->attr.referenced) | |
5374 | { | |
8290d53f | 5375 | if (warn_unused_dummy_argument) |
4166acc7 | 5376 | gfc_warning (OPT_Wunused_dummy_argument, |
5377 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5378 | &sym->declared_at); |
fc6338c7 | 5379 | } |
5380 | ||
5381 | /* Silence bogus "unused parameter" warnings from the | |
5382 | middle end. */ | |
5383 | if (sym->backend_decl != NULL_TREE) | |
5384 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5385 | } | |
19ba2ad8 | 5386 | } |
5387 | ||
c5d33754 | 5388 | /* Make sure we convert the types of the derived types from iso_c_binding |
5389 | into (void *). */ | |
5390 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5391 | && sym->ts.type == BT_DERIVED) | |
5392 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5393 | } |
5394 | ||
c40a5c1b | 5395 | |
5396 | static void | |
5397 | generate_local_nml_decl (gfc_symbol * sym) | |
5398 | { | |
5399 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5400 | { | |
5401 | tree decl = generate_namelist_decl (sym); | |
5402 | pushdecl (decl); | |
5403 | } | |
5404 | } | |
5405 | ||
5406 | ||
4ee9c684 | 5407 | static void |
5408 | generate_local_vars (gfc_namespace * ns) | |
5409 | { | |
5410 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5411 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5412 | } |
5413 | ||
5414 | ||
1b716045 | 5415 | /* Generate a switch statement to jump to the correct entry point. Also |
5416 | creates the label decls for the entry points. */ | |
4ee9c684 | 5417 | |
1b716045 | 5418 | static tree |
5419 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5420 | { |
1b716045 | 5421 | stmtblock_t block; |
5422 | tree label; | |
5423 | tree tmp; | |
5424 | tree val; | |
4ee9c684 | 5425 | |
1b716045 | 5426 | gfc_init_block (&block); |
5427 | for (; el; el = el->next) | |
5428 | { | |
5429 | /* Add the case label. */ | |
b797d6d3 | 5430 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5431 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5432 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5433 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5434 | |
1b716045 | 5435 | /* And jump to the actual entry point. */ |
5436 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5437 | tmp = build1_v (GOTO_EXPR, label); |
5438 | gfc_add_expr_to_block (&block, tmp); | |
5439 | ||
5440 | /* Save the label decl. */ | |
5441 | el->label = label; | |
5442 | } | |
5443 | tmp = gfc_finish_block (&block); | |
5444 | /* The first argument selects the entry point. */ | |
5445 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 5446 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
5447 | val, tmp, NULL_TREE); | |
1b716045 | 5448 | return tmp; |
4ee9c684 | 5449 | } |
5450 | ||
6374121b | 5451 | |
a4abf8a0 | 5452 | /* Add code to string lengths of actual arguments passed to a function against |
5453 | the expected lengths of the dummy arguments. */ | |
5454 | ||
5455 | static void | |
5456 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5457 | { | |
5458 | gfc_formal_arglist *formal; | |
5459 | ||
6777213b | 5460 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5461 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5462 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5463 | { |
5464 | enum tree_code comparison; | |
5465 | tree cond; | |
5466 | tree argname; | |
5467 | gfc_symbol *fsym; | |
5468 | gfc_charlen *cl; | |
5469 | const char *message; | |
5470 | ||
5471 | fsym = formal->sym; | |
eeebe20b | 5472 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5473 | |
5474 | gcc_assert (cl); | |
5475 | gcc_assert (cl->passed_length != NULL_TREE); | |
5476 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5477 | ||
5478 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5479 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5480 | that the actual string length is *at least* the expected one. |
5481 | Sequence association allows for a mismatch of the string length | |
5482 | if the actual argument is (part of) an array, but only if the | |
5483 | dummy argument is an array. (See "Sequence association" in | |
5484 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5485 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5486 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5487 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5488 | { |
5489 | comparison = NE_EXPR; | |
5490 | message = _("Actual string length does not match the declared one" | |
5491 | " for dummy argument '%s' (%ld/%ld)"); | |
5492 | } | |
be4be771 | 5493 | else if (fsym->as && fsym->as->rank != 0) |
5494 | continue; | |
a4abf8a0 | 5495 | else |
5496 | { | |
5497 | comparison = LT_EXPR; | |
5498 | message = _("Actual string length is shorter than the declared one" | |
5499 | " for dummy argument '%s' (%ld/%ld)"); | |
5500 | } | |
5501 | ||
5502 | /* Build the condition. For optional arguments, an actual length | |
5503 | of 0 is also acceptable if the associated string is NULL, which | |
5504 | means the argument was not passed. */ | |
fd779e1d | 5505 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
5506 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 5507 | if (fsym->attr.optional) |
5508 | { | |
5509 | tree not_absent; | |
5510 | tree not_0length; | |
5511 | tree absent_failed; | |
5512 | ||
fd779e1d | 5513 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
5514 | boolean_type_node, | |
5515 | cl->passed_length, | |
385f3f36 | 5516 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5517 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5518 | fsym->attr.referenced = 1; | |
5519 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5520 | |
fd779e1d | 5521 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
5522 | boolean_type_node, not_0length, | |
5523 | not_absent); | |
a4abf8a0 | 5524 | |
fd779e1d | 5525 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
5526 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 5527 | } |
5528 | ||
5529 | /* Build the runtime check. */ | |
5530 | argname = gfc_build_cstring_const (fsym->name); | |
5531 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5532 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5533 | message, argname, | |
5534 | fold_convert (long_integer_type_node, | |
5535 | cl->passed_length), | |
5536 | fold_convert (long_integer_type_node, | |
5537 | cl->backend_decl)); | |
5538 | } | |
5539 | } | |
5540 | ||
5541 | ||
7257a5d2 | 5542 | static void |
5543 | create_main_function (tree fndecl) | |
5544 | { | |
43702da6 | 5545 | tree old_context; |
7257a5d2 | 5546 | tree ftn_main; |
5547 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5548 | stmtblock_t body; | |
5549 | ||
43702da6 | 5550 | old_context = current_function_decl; |
5551 | ||
5552 | if (old_context) | |
5553 | { | |
5554 | push_function_context (); | |
5555 | saved_parent_function_decls = saved_function_decls; | |
5556 | saved_function_decls = NULL_TREE; | |
5557 | } | |
5558 | ||
7257a5d2 | 5559 | /* main() function must be declared with global scope. */ |
5560 | gcc_assert (current_function_decl == NULL_TREE); | |
5561 | ||
5562 | /* Declare the function. */ | |
5563 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5564 | build_pointer_type (pchar_type_node), | |
5565 | NULL_TREE); | |
0509d0ee | 5566 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5567 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5568 | main_identifier_node, tmp); | |
7257a5d2 | 5569 | DECL_EXTERNAL (ftn_main) = 0; |
5570 | TREE_PUBLIC (ftn_main) = 1; | |
5571 | TREE_STATIC (ftn_main) = 1; | |
5572 | DECL_ATTRIBUTES (ftn_main) | |
5573 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5574 | ||
5575 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5576 | result_decl = build_decl (input_location, |
5577 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5578 | DECL_ARTIFICIAL (result_decl) = 1; |
5579 | DECL_IGNORED_P (result_decl) = 1; | |
5580 | DECL_CONTEXT (result_decl) = ftn_main; | |
5581 | DECL_RESULT (ftn_main) = result_decl; | |
5582 | ||
5583 | pushdecl (ftn_main); | |
5584 | ||
5585 | /* Get the arguments. */ | |
5586 | ||
5587 | arglist = NULL_TREE; | |
5588 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5589 | ||
5590 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5591 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5592 | DECL_CONTEXT (argc) = ftn_main; |
5593 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5594 | TREE_READONLY (argc) = 1; | |
5595 | gfc_finish_decl (argc); | |
5596 | arglist = chainon (arglist, argc); | |
5597 | ||
5598 | typelist = TREE_CHAIN (typelist); | |
5599 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5600 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5601 | DECL_CONTEXT (argv) = ftn_main; |
5602 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5603 | TREE_READONLY (argv) = 1; | |
5604 | DECL_BY_REFERENCE (argv) = 1; | |
5605 | gfc_finish_decl (argv); | |
5606 | arglist = chainon (arglist, argv); | |
5607 | ||
5608 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5609 | current_function_decl = ftn_main; | |
5610 | announce_function (ftn_main); | |
5611 | ||
5612 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5613 | make_decl_rtl (ftn_main); | |
00cf115c | 5614 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5615 | pushlevel (); |
7257a5d2 | 5616 | |
5617 | gfc_init_block (&body); | |
5618 | ||
293d72e0 | 5619 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5620 | |
d44f2f7c | 5621 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5622 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5623 | { |
5624 | tree pint_type, pppchar_type; | |
5625 | pint_type = build_pointer_type (integer_type_node); | |
5626 | pppchar_type | |
5627 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5628 | ||
d44f2f7c | 5629 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5630 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5631 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5632 | gfc_add_expr_to_block (&body, tmp); |
5633 | } | |
5634 | ||
7257a5d2 | 5635 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5636 | TREE_USED (argc) = 1; |
5637 | TREE_USED (argv) = 1; | |
389dd41b | 5638 | tmp = build_call_expr_loc (input_location, |
5639 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5640 | gfc_add_expr_to_block (&body, tmp); |
5641 | ||
5642 | /* Add a call to set_options to set up the runtime library Fortran | |
5643 | language standard parameters. */ | |
5644 | { | |
5645 | tree array_type, array, var; | |
f1f41a6c | 5646 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5647 | |
5648 | /* Passing a new option to the library requires four modifications: | |
5649 | + add it to the tree_cons list below | |
5650 | + change the array size in the call to build_array_type | |
5651 | + change the first argument to the library call | |
5652 | gfor_fndecl_set_options | |
5653 | + modify the library (runtime/compile_options.c)! */ | |
5654 | ||
06f13dc1 | 5655 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5656 | build_int_cst (integer_type_node, | |
5657 | gfc_option.warn_std)); | |
5658 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5659 | build_int_cst (integer_type_node, | |
5660 | gfc_option.allow_std)); | |
5661 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5662 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5663 | /* TODO: This is the old -fdump-core option, which is unused but |
5664 | passed due to ABI compatibility; remove when bumping the | |
5665 | library ABI. */ | |
06f13dc1 | 5666 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5667 | build_int_cst (integer_type_node, | |
b2130263 | 5668 | 0)); |
06f13dc1 | 5669 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5670 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 5671 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5672 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 5673 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5674 | build_int_cst (integer_type_node, | |
5675 | (gfc_option.rtcheck | |
5676 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5677 | /* TODO: This is the -frange-check option, which no longer affects |
5678 | library behavior; when bumping the library ABI this slot can be | |
5679 | reused for something else. As it is the last element in the | |
293d72e0 | 5680 | array, we can instead leave it out altogether. */ |
553e7cef | 5681 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5682 | build_int_cst (integer_type_node, 0)); | |
06f13dc1 | 5683 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5684 | build_int_cst (integer_type_node, | |
553e7cef | 5685 | gfc_option.fpe_summary)); |
7257a5d2 | 5686 | |
5687 | array_type = build_array_type (integer_type_node, | |
553e7cef | 5688 | build_index_type (size_int (8))); |
06f13dc1 | 5689 | array = build_constructor (array_type, v); |
7257a5d2 | 5690 | TREE_CONSTANT (array) = 1; |
5691 | TREE_STATIC (array) = 1; | |
5692 | ||
5693 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 5694 | var = build_decl (input_location, VAR_DECL, |
5695 | create_tmp_var_name ("options"), | |
5696 | array_type); | |
5697 | DECL_ARTIFICIAL (var) = 1; | |
5698 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 5699 | TREE_CONSTANT (var) = 1; |
5700 | TREE_STATIC (var) = 1; | |
5701 | TREE_READONLY (var) = 1; | |
5702 | DECL_INITIAL (var) = array; | |
bf77f8ee | 5703 | pushdecl (var); |
7257a5d2 | 5704 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
5705 | ||
389dd41b | 5706 | tmp = build_call_expr_loc (input_location, |
5707 | gfor_fndecl_set_options, 2, | |
553e7cef | 5708 | build_int_cst (integer_type_node, 9), var); |
7257a5d2 | 5709 | gfc_add_expr_to_block (&body, tmp); |
5710 | } | |
5711 | ||
5712 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5713 | the library will raise a FPE when needed. */ | |
5714 | if (gfc_option.fpe != 0) | |
5715 | { | |
389dd41b | 5716 | tmp = build_call_expr_loc (input_location, |
5717 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5718 | build_int_cst (integer_type_node, |
5719 | gfc_option.fpe)); | |
5720 | gfc_add_expr_to_block (&body, tmp); | |
5721 | } | |
5722 | ||
5723 | /* If this is the main program and an -fconvert option was provided, | |
5724 | add a call to set_convert. */ | |
5725 | ||
4fe73152 | 5726 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 5727 | { |
389dd41b | 5728 | tmp = build_call_expr_loc (input_location, |
5729 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 5730 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 5731 | gfc_add_expr_to_block (&body, tmp); |
5732 | } | |
5733 | ||
5734 | /* If this is the main program and an -frecord-marker option was provided, | |
5735 | add a call to set_record_marker. */ | |
5736 | ||
eb106faf | 5737 | if (flag_record_marker != 0) |
7257a5d2 | 5738 | { |
389dd41b | 5739 | tmp = build_call_expr_loc (input_location, |
5740 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5741 | build_int_cst (integer_type_node, |
eb106faf | 5742 | flag_record_marker)); |
7257a5d2 | 5743 | gfc_add_expr_to_block (&body, tmp); |
5744 | } | |
5745 | ||
eb106faf | 5746 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 5747 | { |
389dd41b | 5748 | tmp = build_call_expr_loc (input_location, |
5749 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5750 | build_int_cst (integer_type_node, |
eb106faf | 5751 | flag_max_subrecord_length)); |
7257a5d2 | 5752 | gfc_add_expr_to_block (&body, tmp); |
5753 | } | |
5754 | ||
5755 | /* Call MAIN__(). */ | |
389dd41b | 5756 | tmp = build_call_expr_loc (input_location, |
5757 | fndecl, 0); | |
7257a5d2 | 5758 | gfc_add_expr_to_block (&body, tmp); |
5759 | ||
43702da6 | 5760 | /* Mark MAIN__ as used. */ |
5761 | TREE_USED (fndecl) = 1; | |
5762 | ||
70b5944a | 5763 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 5764 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 5765 | { |
70b5944a | 5766 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
5767 | gfc_add_expr_to_block (&body, tmp); | |
5768 | } | |
5769 | ||
7257a5d2 | 5770 | /* "return 0". */ |
fd779e1d | 5771 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5772 | DECL_RESULT (ftn_main), | |
5773 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5774 | tmp = build1_v (RETURN_EXPR, tmp); |
5775 | gfc_add_expr_to_block (&body, tmp); | |
5776 | ||
5777 | ||
5778 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5779 | decl = getdecls (); | |
5780 | ||
5781 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5782 | poplevel (1, 1); |
7257a5d2 | 5783 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5784 | ||
5785 | DECL_SAVED_TREE (ftn_main) | |
5786 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5787 | DECL_INITIAL (ftn_main)); | |
5788 | ||
5789 | /* Output the GENERIC tree. */ | |
5790 | dump_function (TDI_original, ftn_main); | |
5791 | ||
35ee1c66 | 5792 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 5793 | |
5794 | if (old_context) | |
5795 | { | |
5796 | pop_function_context (); | |
5797 | saved_function_decls = saved_parent_function_decls; | |
5798 | } | |
5799 | current_function_decl = old_context; | |
7257a5d2 | 5800 | } |
5801 | ||
5802 | ||
89ac8ba1 | 5803 | /* Get the result expression for a procedure. */ |
5804 | ||
5805 | static tree | |
5806 | get_proc_result (gfc_symbol* sym) | |
5807 | { | |
5808 | if (sym->attr.subroutine || sym == sym->result) | |
5809 | { | |
5810 | if (current_fake_result_decl != NULL) | |
5811 | return TREE_VALUE (current_fake_result_decl); | |
5812 | ||
5813 | return NULL_TREE; | |
5814 | } | |
5815 | ||
5816 | return sym->result->backend_decl; | |
5817 | } | |
5818 | ||
5819 | ||
5820 | /* Generate an appropriate return-statement for a procedure. */ | |
5821 | ||
5822 | tree | |
5823 | gfc_generate_return (void) | |
5824 | { | |
5825 | gfc_symbol* sym; | |
5826 | tree result; | |
5827 | tree fndecl; | |
5828 | ||
5829 | sym = current_procedure_symbol; | |
5830 | fndecl = sym->backend_decl; | |
5831 | ||
5832 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5833 | result = NULL_TREE; | |
5834 | else | |
5835 | { | |
5836 | result = get_proc_result (sym); | |
5837 | ||
5838 | /* Set the return value to the dummy result variable. The | |
5839 | types may be different for scalar default REAL functions | |
5840 | with -ff2c, therefore we have to convert. */ | |
5841 | if (result != NULL_TREE) | |
5842 | { | |
5843 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5844 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5845 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5846 | result); | |
89ac8ba1 | 5847 | } |
5848 | } | |
5849 | ||
5850 | return build1_v (RETURN_EXPR, result); | |
5851 | } | |
5852 | ||
5853 | ||
d566c3e0 | 5854 | static void |
5855 | is_from_ieee_module (gfc_symbol *sym) | |
5856 | { | |
5857 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
5858 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
5859 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
5860 | seen_ieee_symbol = 1; | |
5861 | } | |
5862 | ||
5863 | ||
5864 | static int | |
5865 | is_ieee_module_used (gfc_namespace *ns) | |
5866 | { | |
5867 | seen_ieee_symbol = 0; | |
5868 | gfc_traverse_ns (ns, is_from_ieee_module); | |
5869 | return seen_ieee_symbol; | |
5870 | } | |
5871 | ||
5872 | ||
01d728a4 | 5873 | static gfc_omp_clauses *module_oacc_clauses; |
5874 | ||
5875 | ||
5876 | static void | |
5877 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
5878 | { | |
5879 | gfc_omp_namelist *n; | |
5880 | ||
5881 | n = gfc_get_omp_namelist (); | |
5882 | n->sym = sym; | |
5883 | n->u.map_op = map_op; | |
5884 | ||
5885 | if (!module_oacc_clauses) | |
5886 | module_oacc_clauses = gfc_get_omp_clauses (); | |
5887 | ||
5888 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
5889 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
5890 | ||
5891 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
5892 | } | |
5893 | ||
5894 | ||
5895 | static void | |
5896 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
5897 | { | |
5898 | if (sym->attr.use_assoc) | |
5899 | { | |
5900 | gfc_omp_map_op map_op; | |
5901 | ||
5902 | if (sym->attr.oacc_declare_create) | |
5903 | map_op = OMP_MAP_FORCE_ALLOC; | |
5904 | ||
5905 | if (sym->attr.oacc_declare_copyin) | |
5906 | map_op = OMP_MAP_FORCE_TO; | |
5907 | ||
5908 | if (sym->attr.oacc_declare_deviceptr) | |
5909 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
5910 | ||
5911 | if (sym->attr.oacc_declare_device_resident) | |
5912 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
5913 | ||
5914 | if (sym->attr.oacc_declare_create | |
5915 | || sym->attr.oacc_declare_copyin | |
5916 | || sym->attr.oacc_declare_deviceptr | |
5917 | || sym->attr.oacc_declare_device_resident) | |
5918 | { | |
5919 | sym->attr.referenced = 1; | |
5920 | add_clause (sym, map_op); | |
5921 | } | |
5922 | } | |
5923 | } | |
5924 | ||
5925 | ||
5926 | void | |
5927 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
5928 | { | |
5929 | gfc_code *code; | |
5930 | gfc_oacc_declare *oc; | |
5931 | locus where = gfc_current_locus; | |
5932 | gfc_omp_clauses *omp_clauses = NULL; | |
5933 | gfc_omp_namelist *n, *p; | |
5934 | ||
5935 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
5936 | ||
5937 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
5938 | { | |
5939 | gfc_oacc_declare *new_oc; | |
5940 | ||
5941 | new_oc = gfc_get_oacc_declare (); | |
5942 | new_oc->next = ns->oacc_declare; | |
5943 | new_oc->clauses = module_oacc_clauses; | |
5944 | ||
5945 | ns->oacc_declare = new_oc; | |
5946 | module_oacc_clauses = NULL; | |
5947 | } | |
5948 | ||
5949 | if (!ns->oacc_declare) | |
5950 | return; | |
5951 | ||
5952 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
5953 | { | |
5954 | if (oc->module_var) | |
5955 | continue; | |
5956 | ||
5957 | if (block) | |
5958 | gfc_error ("Sorry, $!ACC DECLARE at %L is not allowed " | |
5959 | "in BLOCK construct", &oc->loc); | |
5960 | ||
5961 | ||
5962 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
5963 | { | |
5964 | if (omp_clauses == NULL) | |
5965 | { | |
5966 | omp_clauses = oc->clauses; | |
5967 | continue; | |
5968 | } | |
5969 | ||
5970 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
5971 | ; | |
5972 | ||
5973 | gcc_assert (p->next == NULL); | |
5974 | ||
5975 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
5976 | omp_clauses = oc->clauses; | |
5977 | } | |
5978 | } | |
5979 | ||
5980 | if (!omp_clauses) | |
5981 | return; | |
5982 | ||
5983 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
5984 | { | |
5985 | switch (n->u.map_op) | |
5986 | { | |
5987 | case OMP_MAP_DEVICE_RESIDENT: | |
5988 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
5989 | break; | |
5990 | ||
5991 | default: | |
5992 | break; | |
5993 | } | |
5994 | } | |
5995 | ||
5996 | code = XCNEW (gfc_code); | |
5997 | code->op = EXEC_OACC_DECLARE; | |
5998 | code->loc = where; | |
5999 | ||
6000 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6001 | code->ext.oacc_declare->clauses = omp_clauses; | |
6002 | ||
6003 | code->block = XCNEW (gfc_code); | |
6004 | code->block->op = EXEC_OACC_DECLARE; | |
6005 | code->block->loc = where; | |
6006 | ||
6007 | if (ns->code) | |
6008 | code->block->next = ns->code; | |
6009 | ||
6010 | ns->code = code; | |
6011 | ||
6012 | return; | |
6013 | } | |
6014 | ||
6015 | ||
4ee9c684 | 6016 | /* Generate code for a function. */ |
6017 | ||
6018 | void | |
6019 | gfc_generate_function_code (gfc_namespace * ns) | |
6020 | { | |
6021 | tree fndecl; | |
6022 | tree old_context; | |
6023 | tree decl; | |
6024 | tree tmp; | |
d566c3e0 | 6025 | tree fpstate = NULL_TREE; |
89ac8ba1 | 6026 | stmtblock_t init, cleanup; |
4ee9c684 | 6027 | stmtblock_t body; |
89ac8ba1 | 6028 | gfc_wrapped_block try_block; |
5fa0fdc2 | 6029 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 6030 | gfc_symbol *sym; |
89ac8ba1 | 6031 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 6032 | int rank, ieee; |
e50e62f5 | 6033 | bool is_recursive; |
4ee9c684 | 6034 | |
6035 | sym = ns->proc_name; | |
89ac8ba1 | 6036 | previous_procedure_symbol = current_procedure_symbol; |
6037 | current_procedure_symbol = sym; | |
1b716045 | 6038 | |
4ee9c684 | 6039 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 6040 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 6041 | sym->tlink = sym; |
6042 | ||
6043 | /* Create the declaration for functions with global scope. */ | |
6044 | if (!sym->backend_decl) | |
d896f9b3 | 6045 | gfc_create_function_decl (ns, false); |
4ee9c684 | 6046 | |
6047 | fndecl = sym->backend_decl; | |
6048 | old_context = current_function_decl; | |
6049 | ||
6050 | if (old_context) | |
6051 | { | |
6052 | push_function_context (); | |
6053 | saved_parent_function_decls = saved_function_decls; | |
6054 | saved_function_decls = NULL_TREE; | |
6055 | } | |
6056 | ||
1b716045 | 6057 | trans_function_start (sym); |
4ee9c684 | 6058 | |
89ac8ba1 | 6059 | gfc_init_block (&init); |
4ee9c684 | 6060 | |
c6871095 | 6061 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6062 | { | |
6063 | /* Copy length backend_decls to all entry point result | |
6064 | symbols. */ | |
6065 | gfc_entry_list *el; | |
6066 | tree backend_decl; | |
6067 | ||
eeebe20b | 6068 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6069 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6070 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6071 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6072 | } |
6073 | ||
4ee9c684 | 6074 | /* Translate COMMON blocks. */ |
6075 | gfc_trans_common (ns); | |
6076 | ||
c750cc52 | 6077 | /* Null the parent fake result declaration if this namespace is |
6078 | a module function or an external procedures. */ | |
6079 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6080 | || ns->parent == NULL) | |
6081 | parent_fake_result_decl = NULL_TREE; | |
6082 | ||
2b685f8e | 6083 | gfc_generate_contained_functions (ns); |
6084 | ||
9579733e | 6085 | nonlocal_dummy_decls = NULL; |
6086 | nonlocal_dummy_decl_pset = NULL; | |
6087 | ||
a961ca30 | 6088 | has_coarray_vars = false; |
4ee9c684 | 6089 | generate_local_vars (ns); |
5b11d932 | 6090 | |
4fe73152 | 6091 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6092 | generate_coarray_init (ns); |
6093 | ||
c750cc52 | 6094 | /* Keep the parent fake result declaration in module functions |
6095 | or external procedures. */ | |
6096 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6097 | || ns->parent == NULL) | |
6098 | current_fake_result_decl = parent_fake_result_decl; | |
6099 | else | |
6100 | current_fake_result_decl = NULL_TREE; | |
6101 | ||
89ac8ba1 | 6102 | is_recursive = sym->attr.recursive |
6103 | || (sym->attr.entry_master | |
6104 | && sym->ns->entries->sym->attr.recursive); | |
6105 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6106 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6107 | { |
6108 | char * msg; | |
6109 | ||
87fda26c | 6110 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6111 | sym->name); | |
89ac8ba1 | 6112 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); |
6113 | TREE_STATIC (recurcheckvar) = 1; | |
6114 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
6115 | gfc_add_expr_to_block (&init, recurcheckvar); | |
6116 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6117 | &sym->declared_at, msg); | |
6118 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 6119 | free (msg); |
89ac8ba1 | 6120 | } |
4ee9c684 | 6121 | |
d566c3e0 | 6122 | /* Check if an IEEE module is used in the procedure. If so, save |
6123 | the floating point state. */ | |
6124 | ieee = is_ieee_module_used (ns); | |
6125 | if (ieee) | |
d7333535 | 6126 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6127 | |
4ee9c684 | 6128 | /* Now generate the code for the body of this function. */ |
6129 | gfc_init_block (&body); | |
6130 | ||
6131 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6132 | && sym->attr.subroutine) |
4ee9c684 | 6133 | { |
6134 | tree alternate_return; | |
c750cc52 | 6135 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6136 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6137 | } |
6138 | ||
1b716045 | 6139 | if (ns->entries) |
6140 | { | |
6141 | /* Jump to the correct entry point. */ | |
6142 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6143 | gfc_add_expr_to_block (&body, tmp); | |
6144 | } | |
6145 | ||
a4abf8a0 | 6146 | /* If bounds-checking is enabled, generate code to check passed in actual |
6147 | arguments against the expected dummy argument attributes (e.g. string | |
6148 | lengths). */ | |
c1630d65 | 6149 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6150 | add_argument_checking (&body, sym); |
6151 | ||
01d728a4 | 6152 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6153 | |
4ee9c684 | 6154 | tmp = gfc_trans_code (ns->code); |
6155 | gfc_add_expr_to_block (&body, tmp); | |
6156 | ||
1caa6ab1 | 6157 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6158 | || (sym->result && sym->result != sym | |
6159 | && sym->result->ts.type == BT_DERIVED | |
6160 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6161 | { |
1caa6ab1 | 6162 | bool artificial_result_decl = false; |
89ac8ba1 | 6163 | tree result = get_proc_result (sym); |
1caa6ab1 | 6164 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6165 | ||
6166 | /* Make sure that a function returning an object with | |
6167 | alloc/pointer_components always has a result, where at least | |
6168 | the allocatable/pointer components are set to zero. */ | |
6169 | if (result == NULL_TREE && sym->attr.function | |
6170 | && ((sym->result->ts.type == BT_DERIVED | |
6171 | && (sym->attr.allocatable | |
6172 | || sym->attr.pointer | |
6173 | || sym->result->ts.u.derived->attr.alloc_comp | |
6174 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6175 | || (sym->result->ts.type == BT_CLASS | |
6176 | && (CLASS_DATA (sym)->attr.allocatable | |
6177 | || CLASS_DATA (sym)->attr.class_pointer | |
6178 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6179 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6180 | { | |
6181 | artificial_result_decl = true; | |
6182 | result = gfc_get_fake_result_decl (sym, 0); | |
6183 | } | |
4ee9c684 | 6184 | |
42766cb3 | 6185 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6186 | { |
deb7edfc | 6187 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6188 | && sym->result == sym) | |
6189 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6190 | null_pointer_node)); | |
42766cb3 | 6191 | else if (sym->ts.type == BT_CLASS |
6192 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6193 | && CLASS_DATA (sym)->attr.dimension == 0 |
6194 | && sym->result == sym) | |
42766cb3 | 6195 | { |
6196 | tmp = CLASS_DATA (sym)->backend_decl; | |
6197 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6198 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6199 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6200 | null_pointer_node)); | |
6201 | } | |
deb7edfc | 6202 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6203 | && !sym->attr.allocatable) |
53169279 | 6204 | { |
1caa6ab1 | 6205 | gfc_expr *init_exp; |
6206 | /* Arrays are not initialized using the default initializer of | |
6207 | their elements. Therefore only check if a default | |
6208 | initializer is available when the result is scalar. */ | |
6209 | init_exp = rsym->as ? NULL : gfc_default_initializer (&rsym->ts); | |
6210 | if (init_exp) | |
6211 | { | |
6212 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6213 | gfc_free_expr (init_exp); | |
6214 | gfc_add_expr_to_block (&init, tmp); | |
6215 | } | |
6216 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6217 | { | |
6218 | rank = rsym->as ? rsym->as->rank : 0; | |
6219 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6220 | rank); | |
6221 | gfc_prepend_expr_to_block (&body, tmp); | |
6222 | } | |
53169279 | 6223 | } |
5176859a | 6224 | } |
e50e62f5 | 6225 | |
1caa6ab1 | 6226 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6227 | { |
6228 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 6229 | if (warn_return_type && sym == sym->result) |
4166acc7 | 6230 | gfc_warning (OPT_Wreturn_type, |
6231 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6232 | sym->name, &sym->declared_at); |
90a4a5a6 | 6233 | if (warn_return_type) |
6234 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 6235 | } |
1caa6ab1 | 6236 | if (result != NULL_TREE) |
89ac8ba1 | 6237 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6238 | } |
89ac8ba1 | 6239 | |
6240 | gfc_init_block (&cleanup); | |
6241 | ||
6242 | /* Reset recursion-check variable. */ | |
6243 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6244 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6245 | { |
89ac8ba1 | 6246 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
6247 | recurcheckvar = NULL; | |
e50e62f5 | 6248 | } |
2294b616 | 6249 | |
d566c3e0 | 6250 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6251 | if (ieee) | |
d7333535 | 6252 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6253 | |
89ac8ba1 | 6254 | /* Finish the function body and add init and cleanup code. */ |
6255 | tmp = gfc_finish_block (&body); | |
6256 | gfc_start_wrapped_block (&try_block, tmp); | |
6257 | /* Add code to create and cleanup arrays. */ | |
6258 | gfc_trans_deferred_vars (sym, &try_block); | |
6259 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6260 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6261 | |
6262 | /* Add all the decls we created during processing. */ | |
6263 | decl = saved_function_decls; | |
6264 | while (decl) | |
6265 | { | |
6266 | tree next; | |
6267 | ||
1767a056 | 6268 | next = DECL_CHAIN (decl); |
6269 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6270 | pushdecl (decl); |
4ee9c684 | 6271 | decl = next; |
6272 | } | |
6273 | saved_function_decls = NULL_TREE; | |
6274 | ||
89ac8ba1 | 6275 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6276 | decl = getdecls (); |
4ee9c684 | 6277 | |
6278 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6279 | poplevel (1, 1); |
4ee9c684 | 6280 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6281 | ||
e5004242 | 6282 | DECL_SAVED_TREE (fndecl) |
6283 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6284 | DECL_INITIAL (fndecl)); | |
6285 | ||
9579733e | 6286 | if (nonlocal_dummy_decls) |
6287 | { | |
6288 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6289 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
431205b7 | 6290 | delete nonlocal_dummy_decl_pset; |
9579733e | 6291 | nonlocal_dummy_decls = NULL; |
6292 | nonlocal_dummy_decl_pset = NULL; | |
6293 | } | |
6294 | ||
4ee9c684 | 6295 | /* Output the GENERIC tree. */ |
6296 | dump_function (TDI_original, fndecl); | |
6297 | ||
6298 | /* Store the end of the function, so that we get good line number | |
6299 | info for the epilogue. */ | |
6300 | cfun->function_end_locus = input_location; | |
6301 | ||
6302 | /* We're leaving the context of this function, so zap cfun. | |
6303 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6304 | tree_rest_of_compilation. */ | |
87d4aa85 | 6305 | set_cfun (NULL); |
4ee9c684 | 6306 | |
6307 | if (old_context) | |
6308 | { | |
6309 | pop_function_context (); | |
6310 | saved_function_decls = saved_parent_function_decls; | |
6311 | } | |
6312 | current_function_decl = old_context; | |
6313 | ||
1f7747bd | 6314 | if (decl_function_context (fndecl)) |
6315 | { | |
6316 | /* Register this function with cgraph just far enough to get it | |
6317 | added to our parent's nested function list. | |
6318 | If there are static coarrays in this function, the nested _caf_init | |
6319 | function has already called cgraph_create_node, which also created | |
6320 | the cgraph node for this function. */ | |
4fe73152 | 6321 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
415d1b9a | 6322 | (void) cgraph_node::create (fndecl); |
1f7747bd | 6323 | } |
4ee9c684 | 6324 | else |
35ee1c66 | 6325 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6326 | |
6327 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6328 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6329 | |
6330 | if (sym->attr.is_main_program) | |
6331 | create_main_function (fndecl); | |
89ac8ba1 | 6332 | |
6333 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6334 | } |
6335 | ||
7257a5d2 | 6336 | |
4ee9c684 | 6337 | void |
6338 | gfc_generate_constructors (void) | |
6339 | { | |
22d678e8 | 6340 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6341 | #if 0 |
6342 | tree fnname; | |
6343 | tree type; | |
6344 | tree fndecl; | |
6345 | tree decl; | |
6346 | tree tmp; | |
6347 | ||
6348 | if (gfc_static_ctors == NULL_TREE) | |
6349 | return; | |
6350 | ||
db85cc4f | 6351 | fnname = get_file_function_name ("I"); |
e1036019 | 6352 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6353 | |
e60a6f7b | 6354 | fndecl = build_decl (input_location, |
6355 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6356 | TREE_PUBLIC (fndecl) = 1; |
6357 | ||
e60a6f7b | 6358 | decl = build_decl (input_location, |
6359 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6360 | DECL_ARTIFICIAL (decl) = 1; |
6361 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6362 | DECL_CONTEXT (decl) = fndecl; |
6363 | DECL_RESULT (fndecl) = decl; | |
6364 | ||
6365 | pushdecl (fndecl); | |
6366 | ||
6367 | current_function_decl = fndecl; | |
6368 | ||
b2c4af5e | 6369 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6370 | |
b2c4af5e | 6371 | make_decl_rtl (fndecl); |
4ee9c684 | 6372 | |
00cf115c | 6373 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6374 | |
cde2be84 | 6375 | pushlevel (); |
4ee9c684 | 6376 | |
6377 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6378 | { | |
389dd41b | 6379 | tmp = build_call_expr_loc (input_location, |
6380 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6381 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6382 | } |
6383 | ||
e5004242 | 6384 | decl = getdecls (); |
cde2be84 | 6385 | poplevel (1, 1); |
4ee9c684 | 6386 | |
6387 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6388 | DECL_SAVED_TREE (fndecl) |
6389 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6390 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6391 | |
6392 | free_after_parsing (cfun); | |
6393 | free_after_compilation (cfun); | |
6394 | ||
6148a911 | 6395 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6396 | |
6397 | current_function_decl = NULL_TREE; | |
6398 | #endif | |
6399 | } | |
6400 | ||
9ec7c303 | 6401 | /* Translates a BLOCK DATA program unit. This means emitting the |
6402 | commons contained therein plus their initializations. We also emit | |
6403 | a globally visible symbol to make sure that each BLOCK DATA program | |
6404 | unit remains unique. */ | |
6405 | ||
6406 | void | |
6407 | gfc_generate_block_data (gfc_namespace * ns) | |
6408 | { | |
6409 | tree decl; | |
6410 | tree id; | |
6411 | ||
b31f705b | 6412 | /* Tell the backend the source location of the block data. */ |
6413 | if (ns->proc_name) | |
6414 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6415 | else | |
6416 | gfc_set_backend_locus (&gfc_current_locus); | |
6417 | ||
6418 | /* Process the DATA statements. */ | |
9ec7c303 | 6419 | gfc_trans_common (ns); |
6420 | ||
b31f705b | 6421 | /* Create a global symbol with the mane of the block data. This is to |
6422 | generate linker errors if the same name is used twice. It is never | |
6423 | really used. */ | |
9ec7c303 | 6424 | if (ns->proc_name) |
6425 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6426 | else | |
6427 | id = get_identifier ("__BLOCK_DATA__"); | |
6428 | ||
e60a6f7b | 6429 | decl = build_decl (input_location, |
6430 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6431 | TREE_PUBLIC (decl) = 1; |
6432 | TREE_STATIC (decl) = 1; | |
df4d540f | 6433 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6434 | |
6435 | pushdecl (decl); | |
6436 | rest_of_decl_compilation (decl, 1, 0); | |
6437 | } | |
6438 | ||
b549d2a5 | 6439 | |
6a7084d7 | 6440 | /* Process the local variables of a BLOCK construct. */ |
6441 | ||
6442 | void | |
3c82e013 | 6443 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6444 | { |
6445 | tree decl; | |
6446 | ||
6447 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 6448 | has_coarray_vars = false; |
6449 | ||
6a7084d7 | 6450 | generate_local_vars (ns); |
6451 | ||
4fe73152 | 6452 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6453 | generate_coarray_init (ns); |
6454 | ||
6a7084d7 | 6455 | decl = saved_local_decls; |
6456 | while (decl) | |
6457 | { | |
6458 | tree next; | |
6459 | ||
1767a056 | 6460 | next = DECL_CHAIN (decl); |
6461 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6462 | pushdecl (decl); |
6463 | decl = next; | |
6464 | } | |
6465 | saved_local_decls = NULL_TREE; | |
6466 | } | |
6467 | ||
6468 | ||
4ee9c684 | 6469 | #include "gt-fortran-trans-decl.h" |