]>
Commit | Line | Data |
---|---|---|
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; |
140 | tree gfor_fndecl_caf_error_stop; | |
141 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 142 | tree gfor_fndecl_caf_atomic_def; |
143 | tree gfor_fndecl_caf_atomic_ref; | |
144 | tree gfor_fndecl_caf_atomic_cas; | |
145 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 146 | tree gfor_fndecl_caf_lock; |
147 | tree gfor_fndecl_caf_unlock; | |
bd47f0bc | 148 | tree gfor_fndecl_caf_event_post; |
149 | tree gfor_fndecl_caf_event_wait; | |
150 | tree gfor_fndecl_caf_event_query; | |
52306a18 | 151 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 152 | tree gfor_fndecl_co_max; |
153 | tree gfor_fndecl_co_min; | |
e39efcef | 154 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 155 | tree gfor_fndecl_co_sum; |
70b5944a | 156 | |
70b5944a | 157 | |
4ee9c684 | 158 | /* Math functions. Many other math functions are handled in |
159 | trans-intrinsic.c. */ | |
160 | ||
920e54ef | 161 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 162 | tree gfor_fndecl_math_ishftc4; |
163 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 164 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 165 | |
166 | ||
167 | /* String functions. */ | |
168 | ||
4ee9c684 | 169 | tree gfor_fndecl_compare_string; |
170 | tree gfor_fndecl_concat_string; | |
171 | tree gfor_fndecl_string_len_trim; | |
172 | tree gfor_fndecl_string_index; | |
173 | tree gfor_fndecl_string_scan; | |
174 | tree gfor_fndecl_string_verify; | |
175 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 176 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 177 | tree gfor_fndecl_adjustl; |
178 | tree gfor_fndecl_adjustr; | |
b44437b9 | 179 | tree gfor_fndecl_select_string; |
40b806de | 180 | tree gfor_fndecl_compare_string_char4; |
181 | tree gfor_fndecl_concat_string_char4; | |
182 | tree gfor_fndecl_string_len_trim_char4; | |
183 | tree gfor_fndecl_string_index_char4; | |
184 | tree gfor_fndecl_string_scan_char4; | |
185 | tree gfor_fndecl_string_verify_char4; | |
186 | tree gfor_fndecl_string_trim_char4; | |
187 | tree gfor_fndecl_string_minmax_char4; | |
188 | tree gfor_fndecl_adjustl_char4; | |
189 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 190 | tree gfor_fndecl_select_string_char4; |
191 | ||
192 | ||
193 | /* Conversion between character kinds. */ | |
194 | tree gfor_fndecl_convert_char1_to_char4; | |
195 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 196 | |
197 | ||
198 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 199 | tree gfor_fndecl_size0; |
200 | tree gfor_fndecl_size1; | |
9b057c29 | 201 | tree gfor_fndecl_iargc; |
4ee9c684 | 202 | |
59e2a584 | 203 | /* Intrinsic functions implemented in Fortran. */ |
204 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 205 | tree gfor_fndecl_si_kind; |
206 | tree gfor_fndecl_sr_kind; | |
207 | ||
4e8e57b0 | 208 | /* BLAS gemm functions. */ |
209 | tree gfor_fndecl_sgemm; | |
210 | tree gfor_fndecl_dgemm; | |
211 | tree gfor_fndecl_cgemm; | |
212 | tree gfor_fndecl_zgemm; | |
213 | ||
4ee9c684 | 214 | |
215 | static void | |
216 | gfc_add_decl_to_parent_function (tree decl) | |
217 | { | |
22d678e8 | 218 | gcc_assert (decl); |
4ee9c684 | 219 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
220 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 221 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 222 | saved_parent_function_decls = decl; |
223 | } | |
224 | ||
225 | void | |
226 | gfc_add_decl_to_function (tree decl) | |
227 | { | |
22d678e8 | 228 | gcc_assert (decl); |
4ee9c684 | 229 | TREE_USED (decl) = 1; |
230 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 231 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 232 | saved_function_decls = decl; |
233 | } | |
234 | ||
6a7084d7 | 235 | static void |
236 | add_decl_as_local (tree decl) | |
237 | { | |
238 | gcc_assert (decl); | |
239 | TREE_USED (decl) = 1; | |
240 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 241 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 242 | saved_local_decls = decl; |
243 | } | |
244 | ||
4ee9c684 | 245 | |
b797d6d3 | 246 | /* Build a backend label declaration. Set TREE_USED for named labels. |
247 | The context of the label is always the current_function_decl. All | |
248 | labels are marked artificial. */ | |
4ee9c684 | 249 | |
250 | tree | |
251 | gfc_build_label_decl (tree label_id) | |
252 | { | |
253 | /* 2^32 temporaries should be enough. */ | |
254 | static unsigned int tmp_num = 1; | |
255 | tree label_decl; | |
256 | char *label_name; | |
257 | ||
258 | if (label_id == NULL_TREE) | |
259 | { | |
260 | /* Build an internal label name. */ | |
261 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
262 | label_id = get_identifier (label_name); | |
263 | } | |
264 | else | |
265 | label_name = NULL; | |
266 | ||
267 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 268 | label_decl = build_decl (input_location, |
269 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 270 | DECL_CONTEXT (label_decl) = current_function_decl; |
271 | DECL_MODE (label_decl) = VOIDmode; | |
272 | ||
b797d6d3 | 273 | /* We always define the label as used, even if the original source |
274 | file never references the label. We don't want all kinds of | |
275 | spurious warnings for old-style Fortran code with too many | |
276 | labels. */ | |
277 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 278 | |
b797d6d3 | 279 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 280 | return label_decl; |
281 | } | |
282 | ||
283 | ||
b31f705b | 284 | /* Set the backend source location of a decl. */ |
285 | ||
286 | void | |
287 | gfc_set_decl_location (tree decl, locus * loc) | |
288 | { | |
b31f705b | 289 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 290 | } |
291 | ||
292 | ||
4ee9c684 | 293 | /* Return the backend label declaration for a given label structure, |
294 | or create it if it doesn't exist yet. */ | |
295 | ||
296 | tree | |
297 | gfc_get_label_decl (gfc_st_label * lp) | |
298 | { | |
4ee9c684 | 299 | if (lp->backend_decl) |
300 | return lp->backend_decl; | |
301 | else | |
302 | { | |
303 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
304 | tree label_decl; | |
305 | ||
306 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 307 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 308 | |
309 | /* Build a mangled name for the label. */ | |
310 | sprintf (label_name, "__label_%.6d", lp->value); | |
311 | ||
312 | /* Build the LABEL_DECL node. */ | |
313 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
314 | ||
315 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 316 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 317 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 318 | else |
319 | DECL_ARTIFICIAL (label_decl) = 1; | |
320 | ||
321 | /* Store the label in the label list and return the LABEL_DECL. */ | |
322 | lp->backend_decl = label_decl; | |
323 | return label_decl; | |
324 | } | |
325 | } | |
326 | ||
327 | ||
328 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
329 | ||
330 | static tree | |
331 | gfc_sym_identifier (gfc_symbol * sym) | |
332 | { | |
0509d0ee | 333 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
334 | return (get_identifier ("MAIN__")); | |
335 | else | |
336 | return (get_identifier (sym->name)); | |
4ee9c684 | 337 | } |
338 | ||
339 | ||
340 | /* Construct mangled name from symbol name. */ | |
341 | ||
342 | static tree | |
343 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
344 | { | |
345 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
346 | ||
c5d33754 | 347 | /* Prevent the mangling of identifiers that have an assigned |
348 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 349 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
350 | return get_identifier (sym->binding_label); | |
a90fe829 | 351 | |
4f0fae8e | 352 | if (sym->module == NULL) |
4ee9c684 | 353 | return gfc_sym_identifier (sym); |
354 | else | |
355 | { | |
f08a3f6f | 356 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 357 | return get_identifier (name); |
358 | } | |
359 | } | |
360 | ||
361 | ||
362 | /* Construct mangled function name from symbol name. */ | |
363 | ||
364 | static tree | |
365 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
366 | { | |
367 | int has_underscore; | |
368 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
369 | ||
c5d33754 | 370 | /* It may be possible to simply use the binding label if it's |
371 | provided, and remove the other checks. Then we could use it | |
372 | for other things if we wished. */ | |
373 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 374 | sym->binding_label) |
c5d33754 | 375 | /* use the binding label rather than the mangled name */ |
376 | return get_identifier (sym->binding_label); | |
377 | ||
4b8eb6ca | 378 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 379 | || (sym->module != NULL && (sym->attr.external |
380 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 381 | && !sym->attr.module_procedure) |
4ee9c684 | 382 | { |
a2f97da7 | 383 | /* Main program is mangled into MAIN__. */ |
384 | if (sym->attr.is_main_program) | |
385 | return get_identifier ("MAIN__"); | |
386 | ||
387 | /* Intrinsic procedures are never mangled. */ | |
388 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 389 | return get_identifier (sym->name); |
390 | ||
829d7a08 | 391 | if (flag_underscoring) |
4ee9c684 | 392 | { |
393 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 394 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 395 | snprintf (name, sizeof name, "%s__", sym->name); |
396 | else | |
397 | snprintf (name, sizeof name, "%s_", sym->name); | |
398 | return get_identifier (name); | |
399 | } | |
400 | else | |
401 | return get_identifier (sym->name); | |
402 | } | |
403 | else | |
404 | { | |
f08a3f6f | 405 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 406 | return get_identifier (name); |
407 | } | |
408 | } | |
409 | ||
410 | ||
1236e28b | 411 | void |
412 | gfc_set_decl_assembler_name (tree decl, tree name) | |
413 | { | |
414 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
415 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
416 | } | |
417 | ||
418 | ||
5ed82495 | 419 | /* Returns true if a variable of specified size should go on the stack. */ |
420 | ||
421 | int | |
422 | gfc_can_put_var_on_stack (tree size) | |
423 | { | |
424 | unsigned HOST_WIDE_INT low; | |
425 | ||
426 | if (!INTEGER_CST_P (size)) | |
427 | return 0; | |
428 | ||
eb106faf | 429 | if (flag_max_stack_var_size < 0) |
5ed82495 | 430 | return 1; |
431 | ||
e1d65c9f | 432 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 433 | return 0; |
434 | ||
f9ae6f95 | 435 | low = TREE_INT_CST_LOW (size); |
eb106faf | 436 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 437 | return 0; |
438 | ||
439 | /* TODO: Set a per-function stack size limit. */ | |
440 | ||
441 | return 1; | |
442 | } | |
443 | ||
444 | ||
b7bf3f81 | 445 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
446 | an expression involving its corresponding pointer. There are | |
447 | 2 cases; one for variable size arrays, and one for everything else, | |
448 | because variable-sized arrays require one fewer level of | |
449 | indirection. */ | |
450 | ||
451 | static void | |
452 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
453 | { | |
454 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
455 | tree value; | |
456 | ||
457 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 458 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 459 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
460 | ptr_decl); | |
b7bf3f81 | 461 | |
462 | /* Check to see if we're dealing with a variable-sized array. */ | |
463 | if (sym->attr.dimension | |
a90fe829 | 464 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
465 | { | |
942043f8 | 466 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 467 | them here. */ |
468 | value = convert (TREE_TYPE (decl), ptr_decl); | |
469 | } | |
470 | else | |
471 | { | |
472 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
473 | ptr_decl); | |
389dd41b | 474 | value = build_fold_indirect_ref_loc (input_location, |
475 | ptr_decl); | |
b7bf3f81 | 476 | } |
477 | ||
478 | SET_DECL_VALUE_EXPR (decl, value); | |
479 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 480 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 481 | } |
482 | ||
483 | ||
b9c7fce7 | 484 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 485 | |
486 | static void | |
b9c7fce7 | 487 | gfc_finish_decl (tree decl) |
4ee9c684 | 488 | { |
b9c7fce7 | 489 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
490 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 491 | |
b9c7fce7 | 492 | if (TREE_CODE (decl) != VAR_DECL) |
493 | return; | |
4ee9c684 | 494 | |
b9c7fce7 | 495 | if (DECL_SIZE (decl) == NULL_TREE |
496 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
497 | layout_decl (decl, 0); | |
498 | ||
499 | /* A few consistency checks. */ | |
500 | /* A static variable with an incomplete type is an error if it is | |
501 | initialized. Also if it is not file scope. Otherwise, let it | |
502 | through, but if it is not `extern' then it may cause an error | |
503 | message later. */ | |
504 | /* An automatic variable with an incomplete type is an error. */ | |
505 | ||
506 | /* We should know the storage size. */ | |
507 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 508 | || (TREE_STATIC (decl) |
b9c7fce7 | 509 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
510 | : DECL_EXTERNAL (decl))); | |
511 | ||
512 | /* The storage size should be constant. */ | |
513 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
514 | || !DECL_SIZE (decl) | |
515 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 516 | } |
517 | ||
518 | ||
cf5f881f | 519 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
520 | ||
521 | void | |
522 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
523 | { | |
524 | if (!attr->dimension && !attr->codimension) | |
525 | { | |
526 | /* Handle scalar allocatable variables. */ | |
527 | if (attr->allocatable) | |
528 | { | |
529 | gfc_allocate_lang_decl (decl); | |
530 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
531 | } | |
532 | /* Handle scalar pointer variables. */ | |
533 | if (attr->pointer) | |
534 | { | |
535 | gfc_allocate_lang_decl (decl); | |
536 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
537 | } | |
538 | } | |
539 | } | |
540 | ||
541 | ||
4ee9c684 | 542 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
543 | ||
544 | static void | |
545 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
546 | { | |
c1977dbe | 547 | tree new_type; |
b549d2a5 | 548 | |
b7bf3f81 | 549 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 550 | if (sym->attr.cray_pointee) |
b7bf3f81 | 551 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 552 | |
845a9546 | 553 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
554 | This is the equivalent of the TARGET variables. | |
555 | We also need to set this if the variable is passed by reference in a | |
556 | CALL statement. */ | |
4ee9c684 | 557 | if (sym->attr.target) |
558 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 559 | |
4ee9c684 | 560 | /* If it wasn't used we wouldn't be getting it. */ |
561 | TREE_USED (decl) = 1; | |
562 | ||
7415cfe4 | 563 | if (sym->attr.flavor == FL_PARAMETER |
564 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
565 | TREE_READONLY (decl) = 1; | |
566 | ||
4ee9c684 | 567 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
568 | because this would add them to the current scope rather than the | |
569 | function scope. */ | |
570 | if (current_function_decl != NULL_TREE) | |
571 | { | |
7af6a4af | 572 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 573 | || sym->result == sym) |
4ee9c684 | 574 | gfc_add_decl_to_function (decl); |
6a7084d7 | 575 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
576 | /* This is a BLOCK construct. */ | |
577 | add_decl_as_local (decl); | |
4ee9c684 | 578 | else |
579 | gfc_add_decl_to_parent_function (decl); | |
580 | } | |
581 | ||
b7bf3f81 | 582 | if (sym->attr.cray_pointee) |
583 | return; | |
584 | ||
c5cb468c | 585 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 586 | { |
587 | /* We need to put variables that are bind(c) into the common | |
588 | segment of the object file, because this is what C would do. | |
589 | gfortran would typically put them in either the BSS or | |
590 | initialized data segments, and only mark them as common if | |
591 | they were part of common blocks. However, if they are not put | |
ea657963 | 592 | into common space, then C cannot initialize global Fortran |
c5d33754 | 593 | variables that it interoperates with and the draft says that |
594 | either Fortran or C should be able to initialize it (but not | |
595 | both, of course.) (J3/04-007, section 15.3). */ | |
596 | TREE_PUBLIC(decl) = 1; | |
597 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 598 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
599 | { | |
600 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
601 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
602 | } | |
c5d33754 | 603 | } |
a90fe829 | 604 | |
4ee9c684 | 605 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 606 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 607 | { |
608 | DECL_EXTERNAL (decl) = 1; | |
609 | TREE_PUBLIC (decl) = 1; | |
610 | } | |
4f0fae8e | 611 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 612 | { |
6b20224d | 613 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 614 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 615 | |
c8ddfd5d | 616 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 617 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 618 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
619 | { | |
620 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
621 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
622 | } | |
4ee9c684 | 623 | } |
624 | ||
f0d4969f | 625 | /* Derived types are a bit peculiar because of the possibility of |
626 | a default initializer; this must be applied each time the variable | |
627 | comes into scope it therefore need not be static. These variables | |
628 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 629 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 630 | SAVE_EXPLICIT. */ |
631 | if (!sym->attr.use_assoc | |
632 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 633 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 634 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 635 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 636 | TREE_STATIC (decl) = 1; |
ef814c81 | 637 | |
638 | if (sym->attr.volatile_) | |
639 | { | |
ef814c81 | 640 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 641 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 642 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
643 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 644 | } |
ef814c81 | 645 | |
4ee9c684 | 646 | /* Keep variables larger than max-stack-var-size off stack. */ |
647 | if (!sym->ns->proc_name->attr.recursive | |
648 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 649 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
650 | /* Put variable length auto array pointers always into stack. */ | |
651 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
652 | || sym->attr.dimension == 0 | |
653 | || sym->as->type != AS_EXPLICIT | |
654 | || sym->attr.pointer | |
655 | || sym->attr.allocatable) | |
656 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 657 | TREE_STATIC (decl) = 1; |
764f1175 | 658 | |
659 | /* Handle threadprivate variables. */ | |
9dda1f80 | 660 | if (sym->attr.threadprivate |
764f1175 | 661 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 662 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 663 | |
664 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 665 | } |
666 | ||
667 | ||
668 | /* Allocate the lang-specific part of a decl. */ | |
669 | ||
670 | void | |
671 | gfc_allocate_lang_decl (tree decl) | |
672 | { | |
cf5f881f | 673 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
674 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 675 | } |
676 | ||
677 | /* Remember a symbol to generate initialization/cleanup code at function | |
678 | entry/exit. */ | |
679 | ||
680 | static void | |
681 | gfc_defer_symbol_init (gfc_symbol * sym) | |
682 | { | |
683 | gfc_symbol *p; | |
684 | gfc_symbol *last; | |
685 | gfc_symbol *head; | |
686 | ||
687 | /* Don't add a symbol twice. */ | |
688 | if (sym->tlink) | |
689 | return; | |
690 | ||
691 | last = head = sym->ns->proc_name; | |
692 | p = last->tlink; | |
693 | ||
694 | /* Make sure that setup code for dummy variables which are used in the | |
695 | setup of other variables is generated first. */ | |
696 | if (sym->attr.dummy) | |
697 | { | |
698 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
699 | This is a circular list, so don't go past the head. */ | |
700 | while (p != head | |
701 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
702 | { | |
703 | last = p; | |
704 | p = p->tlink; | |
705 | } | |
706 | } | |
707 | /* Insert in between last and p. */ | |
708 | last->tlink = sym; | |
709 | sym->tlink = p; | |
710 | } | |
711 | ||
712 | ||
9f5a9ac5 | 713 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
714 | backend_decl for a module symbol, if it all ready exists. If the | |
715 | module gsymbol does not exist, it is created. If the symbol does | |
716 | not exist, it is added to the gsymbol namespace. Returns true if | |
717 | an existing backend_decl is found. */ | |
718 | ||
719 | bool | |
720 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
721 | { | |
722 | gfc_gsymbol *gsym; | |
723 | gfc_symbol *s; | |
724 | gfc_symtree *st; | |
725 | ||
726 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
727 | ||
728 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
729 | { | |
730 | st = NULL; | |
731 | s = NULL; | |
732 | ||
733 | if (gsym) | |
734 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
735 | ||
736 | if (!s) | |
737 | { | |
738 | if (!gsym) | |
739 | { | |
740 | gsym = gfc_get_gsymbol (sym->module); | |
741 | gsym->type = GSYM_MODULE; | |
742 | gsym->ns = gfc_get_namespace (NULL, 0); | |
743 | } | |
744 | ||
745 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
746 | st->n.sym = sym; | |
747 | sym->refs++; | |
748 | } | |
749 | else if (sym->attr.flavor == FL_DERIVED) | |
750 | { | |
c2958b6b | 751 | if (s && s->attr.flavor == FL_PROCEDURE) |
752 | { | |
753 | gfc_interface *intr; | |
754 | gcc_assert (s->attr.generic); | |
755 | for (intr = s->generic; intr; intr = intr->next) | |
756 | if (intr->sym->attr.flavor == FL_DERIVED) | |
757 | { | |
758 | s = intr->sym; | |
759 | break; | |
760 | } | |
761 | } | |
762 | ||
9f5a9ac5 | 763 | if (!s->backend_decl) |
764 | s->backend_decl = gfc_get_derived_type (s); | |
765 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
766 | return true; | |
767 | } | |
768 | else if (s->backend_decl) | |
769 | { | |
85ec2f13 | 770 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 771 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
772 | true); | |
773 | else if (sym->ts.type == BT_CHARACTER) | |
774 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
775 | sym->backend_decl = s->backend_decl; | |
776 | return true; | |
777 | } | |
778 | } | |
779 | return false; | |
780 | } | |
781 | ||
782 | ||
4ee9c684 | 783 | /* Create an array index type variable with function scope. */ |
784 | ||
785 | static tree | |
786 | create_index_var (const char * pfx, int nest) | |
787 | { | |
788 | tree decl; | |
789 | ||
790 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
791 | if (nest) | |
792 | gfc_add_decl_to_parent_function (decl); | |
793 | else | |
794 | gfc_add_decl_to_function (decl); | |
795 | return decl; | |
796 | } | |
797 | ||
798 | ||
799 | /* Create variables to hold all the non-constant bits of info for a | |
800 | descriptorless array. Remember these in the lang-specific part of the | |
801 | type. */ | |
802 | ||
803 | static void | |
804 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
805 | { | |
806 | tree type; | |
807 | int dim; | |
808 | int nest; | |
7b82374f | 809 | gfc_namespace* procns; |
c6793847 | 810 | symbol_attribute *array_attr; |
811 | gfc_array_spec *as; | |
812 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 813 | |
814 | type = TREE_TYPE (decl); | |
c6793847 | 815 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
816 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 817 | |
818 | /* We just use the descriptor, if there is one. */ | |
819 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
820 | return; | |
821 | ||
22d678e8 | 822 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 823 | procns = gfc_find_proc_namespace (sym->ns); |
824 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 825 | && !sym->attr.contained; |
826 | ||
c6793847 | 827 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
828 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 829 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
830 | { | |
831 | tree token; | |
ac36faf0 | 832 | tree token_type = build_qualified_type (pvoid_type_node, |
833 | TYPE_QUAL_RESTRICT); | |
834 | ||
835 | if (sym->module && (sym->attr.use_assoc | |
836 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
837 | { | |
838 | tree token_name | |
839 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
840 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
841 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
842 | token_type); | |
3adf245a | 843 | if (sym->attr.use_assoc) |
844 | DECL_EXTERNAL (token) = 1; | |
845 | else | |
846 | TREE_STATIC (token) = 1; | |
847 | ||
c8ddfd5d | 848 | TREE_PUBLIC (token) = 1; |
849 | ||
850 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
851 | { | |
852 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
853 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
854 | } | |
ac36faf0 | 855 | } |
856 | else | |
3adf245a | 857 | { |
858 | token = gfc_create_var_np (token_type, "caf_token"); | |
859 | TREE_STATIC (token) = 1; | |
860 | } | |
a961ca30 | 861 | |
a961ca30 | 862 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
863 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 864 | DECL_NONALIASED (token) = 1; |
865 | ||
866 | if (sym->module && !sym->attr.use_assoc) | |
867 | { | |
868 | pushdecl (token); | |
869 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
870 | gfc_module_add_decl (cur_module, token); | |
871 | } | |
872 | else | |
873 | gfc_add_decl_to_function (token); | |
a961ca30 | 874 | } |
875 | ||
4ee9c684 | 876 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
877 | { | |
878 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 879 | { |
880 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
881 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
882 | } | |
9ca15c9b | 883 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 884 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 885 | && (as->type != AS_ASSUMED_SIZE |
886 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 887 | { |
888 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
889 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
890 | } | |
4ee9c684 | 891 | |
892 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 893 | { |
894 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
895 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
896 | } | |
4ee9c684 | 897 | } |
076094b7 | 898 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
899 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
900 | { | |
901 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
902 | { | |
903 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
904 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
905 | } | |
906 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
907 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
908 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
909 | { | |
910 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
911 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
912 | } | |
913 | } | |
4ee9c684 | 914 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
915 | { | |
916 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
917 | "offset"); | |
86254bbf | 918 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
919 | ||
4ee9c684 | 920 | if (nest) |
921 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
922 | else | |
923 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
924 | } | |
d4163395 | 925 | |
926 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 927 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 928 | { |
929 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
930 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
931 | } | |
d4163395 | 932 | |
933 | if (POINTER_TYPE_P (type)) | |
934 | { | |
935 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
936 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
937 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
938 | type = TREE_TYPE (type); | |
939 | } | |
940 | ||
941 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
942 | { | |
943 | tree size, range; | |
944 | ||
fd779e1d | 945 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
946 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 947 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
948 | size); | |
949 | TYPE_DOMAIN (type) = range; | |
950 | layout_type (type); | |
951 | } | |
6cf159a6 | 952 | |
6cf159a6 | 953 | if (TYPE_NAME (type) != NULL_TREE |
c6793847 | 954 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
955 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)) == VAR_DECL) | |
6cf159a6 | 956 | { |
957 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
958 | ||
c6793847 | 959 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 960 | { |
961 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
962 | gtype = TREE_TYPE (gtype); | |
963 | } | |
964 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
965 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
966 | TYPE_NAME (type) = NULL_TREE; | |
967 | } | |
968 | ||
969 | if (TYPE_NAME (type) == NULL_TREE) | |
970 | { | |
971 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
972 | ||
c6793847 | 973 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 974 | { |
7130ec9d | 975 | tree lbound, ubound; |
976 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
977 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
978 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 979 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 980 | /* Ensure the bound variables aren't optimized out at -O0. |
981 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 982 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
983 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
984 | end up in debug info. */ | |
7130ec9d | 985 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
986 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
987 | { | |
988 | if (DECL_NAME (lbound) | |
989 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
990 | "lbound") != 0) | |
84bfaaeb | 991 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 992 | DECL_IGNORED_P (lbound) = 0; |
993 | } | |
994 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
995 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
996 | { | |
997 | if (DECL_NAME (ubound) | |
998 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
999 | "ubound") != 0) | |
84bfaaeb | 1000 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1001 | DECL_IGNORED_P (ubound) = 0; |
1002 | } | |
6cf159a6 | 1003 | } |
e60a6f7b | 1004 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1005 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1006 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1007 | } | |
4ee9c684 | 1008 | } |
1009 | ||
1010 | ||
1011 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1012 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1013 | initialization, and construct full type information. */ |
1014 | ||
1015 | static tree | |
1016 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1017 | { | |
1018 | tree decl; | |
1019 | tree type; | |
1020 | gfc_array_spec *as; | |
c6793847 | 1021 | symbol_attribute *array_attr; |
4ee9c684 | 1022 | char *name; |
3d8dea5a | 1023 | gfc_packed packed; |
4ee9c684 | 1024 | int n; |
1025 | bool known_size; | |
c6793847 | 1026 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1027 | ||
1028 | /* Use the array as and attr. */ | |
1029 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1030 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1031 | ||
1032 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1033 | For class arrays the information if sym is an allocatable or pointer | |
1034 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1035 | too many reasons to be of use here). */ | |
1036 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1037 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1038 | || array_attr->allocatable | |
1039 | || (as && as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1040 | return dummy; |
1041 | ||
c6793847 | 1042 | /* Add to list of variables if not a fake result variable. |
1043 | These symbols are set on the symbol only, not on the class component. */ | |
4ee9c684 | 1044 | if (sym->attr.result || sym->attr.dummy) |
1045 | gfc_defer_symbol_init (sym); | |
1046 | ||
c6793847 | 1047 | /* For a class array the array descriptor is in the _data component, while |
1048 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1049 | descriptor. */ | |
1050 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1051 | : TREE_TYPE (dummy)); | |
1052 | /* type now is the array descriptor w/o any indirection. */ | |
22d678e8 | 1053 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1054 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1055 | |
f888a3fb | 1056 | /* Do we know the element size? */ |
4ee9c684 | 1057 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1058 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1059 | |
c6793847 | 1060 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1061 | { |
1062 | /* For descriptorless arrays with known element size the actual | |
1063 | argument is sufficient. */ | |
4ee9c684 | 1064 | gfc_build_qualified_array (dummy, sym); |
1065 | return dummy; | |
1066 | } | |
1067 | ||
4ee9c684 | 1068 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1069 | { | |
cb8e3560 | 1070 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1071 | packed = PACKED_NO; |
3d235846 | 1072 | |
1073 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1074 | are not repacked. */ | |
829d7a08 | 1075 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1076 | { |
1077 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1078 | packed = PACKED_FULL; |
4ee9c684 | 1079 | } |
1080 | else | |
1081 | { | |
1082 | if (as->type == AS_EXPLICIT) | |
1083 | { | |
3d8dea5a | 1084 | packed = PACKED_FULL; |
4ee9c684 | 1085 | for (n = 0; n < as->rank; n++) |
1086 | { | |
1087 | if (!(as->upper[n] | |
1088 | && as->lower[n] | |
1089 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1090 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1091 | { |
1092 | packed = PACKED_PARTIAL; | |
1093 | break; | |
1094 | } | |
4ee9c684 | 1095 | } |
1096 | } | |
1097 | else | |
3d8dea5a | 1098 | packed = PACKED_PARTIAL; |
4ee9c684 | 1099 | } |
1100 | ||
c6793847 | 1101 | /* For classarrays the element type is required, but |
1102 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1103 | type = is_classarray ? gfc_get_element_type (type) | |
1104 | : gfc_typenode_for_spec (&sym->ts); | |
1105 | type = gfc_get_nodesc_array_type (type, as, packed, | |
e1b3b79b | 1106 | !sym->attr.target); |
4ee9c684 | 1107 | } |
1108 | else | |
1109 | { | |
1110 | /* We now have an expression for the element size, so create a fully | |
1111 | qualified type. Reset sym->backend decl or this will just return the | |
1112 | old type. */ | |
d95efb59 | 1113 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1114 | sym->backend_decl = NULL_TREE; |
1115 | type = gfc_sym_type (sym); | |
3d8dea5a | 1116 | packed = PACKED_FULL; |
4ee9c684 | 1117 | } |
1118 | ||
1119 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1120 | decl = build_decl (input_location, |
1121 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1122 | |
1123 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1124 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1125 | TREE_PUBLIC (decl) = 0; |
1126 | TREE_STATIC (decl) = 0; | |
1127 | DECL_EXTERNAL (decl) = 0; | |
1128 | ||
a1f1e248 | 1129 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1130 | if (sym->attr.optional) | |
1131 | TREE_NO_WARNING (decl) = 1; | |
1132 | ||
4ee9c684 | 1133 | /* We should never get deferred shape arrays here. We used to because of |
1134 | frontend bugs. */ | |
c6793847 | 1135 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1136 | |
3d8dea5a | 1137 | if (packed == PACKED_PARTIAL) |
1138 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1139 | else if (packed == PACKED_FULL) | |
1140 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1141 | |
1142 | gfc_build_qualified_array (decl, sym); | |
1143 | ||
1144 | if (DECL_LANG_SPECIFIC (dummy)) | |
1145 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1146 | else | |
1147 | gfc_allocate_lang_decl (decl); | |
1148 | ||
1149 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1150 | ||
1151 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1152 | || sym->attr.contained) | |
1153 | gfc_add_decl_to_function (decl); | |
1154 | else | |
1155 | gfc_add_decl_to_parent_function (decl); | |
1156 | ||
1157 | return decl; | |
1158 | } | |
1159 | ||
9579733e | 1160 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1161 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1162 | pointing to the artificial variable for debug info purposes. */ | |
1163 | ||
1164 | static void | |
1165 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1166 | { | |
1167 | tree decl, dummy; | |
1168 | ||
1169 | if (! nonlocal_dummy_decl_pset) | |
431205b7 | 1170 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
9579733e | 1171 | |
431205b7 | 1172 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
9579733e | 1173 | return; |
1174 | ||
1175 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1176 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1177 | TREE_TYPE (sym->backend_decl)); |
1178 | DECL_ARTIFICIAL (decl) = 0; | |
1179 | TREE_USED (decl) = 1; | |
1180 | TREE_PUBLIC (decl) = 0; | |
1181 | TREE_STATIC (decl) = 0; | |
1182 | DECL_EXTERNAL (decl) = 0; | |
1183 | if (DECL_BY_REFERENCE (dummy)) | |
1184 | DECL_BY_REFERENCE (decl) = 1; | |
1185 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1186 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1187 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1188 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1189 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1190 | nonlocal_dummy_decls = decl; |
1191 | } | |
4ee9c684 | 1192 | |
1193 | /* Return a constant or a variable to use as a string length. Does not | |
1194 | add the decl to the current scope. */ | |
1195 | ||
1196 | static tree | |
1197 | gfc_create_string_length (gfc_symbol * sym) | |
1198 | { | |
eeebe20b | 1199 | gcc_assert (sym->ts.u.cl); |
1200 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1201 | |
eeebe20b | 1202 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1203 | { |
a4abf8a0 | 1204 | tree length; |
774bbd60 | 1205 | const char *name; |
4ee9c684 | 1206 | |
873f242d | 1207 | /* The string length variable shall be in static memory if it is either |
1208 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1209 | relevant is "len=:" - otherwise, it is either a constant length or | |
1210 | it is an automatic variable. */ | |
be125be0 | 1211 | bool static_length = sym->attr.save |
1212 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1213 | || (flag_max_stack_var_size == 0 |
873f242d | 1214 | && sym->ts.deferred && !sym->attr.dummy |
1215 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1216 | |
1217 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1218 | variables as some systems do not support the "." in the assembler name. | |
1219 | For nonstatic variables, the "." does not appear in assembler. */ | |
1220 | if (static_length) | |
1221 | { | |
1222 | if (sym->module) | |
1223 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1224 | sym->name); | |
1225 | else | |
1226 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1227 | } | |
1228 | else if (sym->module) | |
774bbd60 | 1229 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1230 | else | |
1231 | name = gfc_get_string (".%s", sym->name); | |
1232 | ||
e60a6f7b | 1233 | length = build_decl (input_location, |
1234 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1235 | gfc_charlen_type_node); |
4ee9c684 | 1236 | DECL_ARTIFICIAL (length) = 1; |
1237 | TREE_USED (length) = 1; | |
d4163395 | 1238 | if (sym->ns->proc_name->tlink != NULL) |
1239 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1240 | |
eeebe20b | 1241 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1242 | |
be125be0 | 1243 | if (static_length) |
774bbd60 | 1244 | TREE_STATIC (length) = 1; |
1245 | ||
1246 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1247 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1248 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1249 | } |
1250 | ||
eeebe20b | 1251 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1252 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1253 | } |
1254 | ||
c8f1568f | 1255 | /* If a variable is assigned a label, we add another two auxiliary |
1256 | variables. */ | |
1257 | ||
1258 | static void | |
1259 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1260 | { | |
1261 | tree addr; | |
1262 | tree length; | |
1263 | tree decl; | |
1264 | ||
1265 | gcc_assert (sym->backend_decl); | |
1266 | ||
1267 | decl = sym->backend_decl; | |
1268 | gfc_allocate_lang_decl (decl); | |
1269 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1270 | length = build_decl (input_location, |
1271 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1272 | gfc_charlen_type_node); |
e60a6f7b | 1273 | addr = build_decl (input_location, |
1274 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1275 | pvoid_type_node); |
1276 | gfc_finish_var_decl (length, sym); | |
1277 | gfc_finish_var_decl (addr, sym); | |
1278 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1279 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1280 | target label's address. Otherwise, value is the length of a format string | |
1281 | and ASSIGN_ADDR is its address. */ | |
1282 | if (TREE_STATIC (length)) | |
35bf1214 | 1283 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1284 | else |
1285 | gfc_defer_symbol_init (sym); | |
1286 | ||
1287 | GFC_DECL_STRING_LEN (decl) = length; | |
1288 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1289 | } | |
4ee9c684 | 1290 | |
36b0a1b0 | 1291 | |
1292 | static tree | |
1293 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1294 | { | |
1295 | unsigned id; | |
1296 | tree attr; | |
1297 | ||
1298 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1299 | if (sym_attr.ext_attr & (1 << id)) | |
1300 | { | |
1301 | attr = build_tree_list ( | |
1302 | get_identifier (ext_attr_list[id].middle_end_name), | |
1303 | NULL_TREE); | |
1304 | list = chainon (list, attr); | |
1305 | } | |
1306 | ||
691447ab | 1307 | if (sym_attr.omp_declare_target) |
1308 | list = tree_cons (get_identifier ("omp declare target"), | |
1309 | NULL_TREE, list); | |
1310 | ||
7c1a9598 | 1311 | if (sym_attr.oacc_function) |
1312 | { | |
1313 | tree dims = NULL_TREE; | |
1314 | int ix; | |
1315 | int level = sym_attr.oacc_function - 1; | |
1316 | ||
1317 | for (ix = GOMP_DIM_MAX; ix--;) | |
1318 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1319 | integer_zero_node, dims); | |
1320 | ||
1321 | list = tree_cons (get_identifier ("oacc function"), | |
1322 | dims, list); | |
1323 | } | |
1324 | ||
36b0a1b0 | 1325 | return list; |
1326 | } | |
1327 | ||
1328 | ||
802532b9 | 1329 | static void build_function_decl (gfc_symbol * sym, bool global); |
1330 | ||
1331 | ||
4ee9c684 | 1332 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1333 | exist. */ | |
1334 | ||
1335 | tree | |
1336 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1337 | { | |
1338 | tree decl; | |
1339 | tree length = NULL_TREE; | |
36b0a1b0 | 1340 | tree attributes; |
4ee9c684 | 1341 | int byref; |
cd2c99b8 | 1342 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1343 | bool fun_or_res; |
4ee9c684 | 1344 | |
0b5dc8b5 | 1345 | gcc_assert (sym->attr.referenced |
9e45357a | 1346 | || sym->attr.flavor == FL_PROCEDURE |
1347 | || sym->attr.use_assoc | |
4b8eb6ca | 1348 | || sym->attr.used_in_submodule |
9e45357a | 1349 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1350 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1351 | && sym->backend_decl)); | |
4ee9c684 | 1352 | |
ff70e443 | 1353 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1354 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1355 | else | |
1356 | byref = 0; | |
1357 | ||
09c509ed | 1358 | /* Make sure that the vtab for the declared type is completed. */ |
1359 | if (sym->ts.type == BT_CLASS) | |
1360 | { | |
50b4b37b | 1361 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1362 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1363 | { |
1364 | gfc_find_derived_vtab (c->ts.u.derived); | |
1365 | gfc_get_derived_type (sym->ts.u.derived); | |
1366 | } | |
09c509ed | 1367 | } |
1368 | ||
617125a6 | 1369 | /* All deferred character length procedures need to retain the backend |
1370 | decl, which is a pointer to the character length in the caller's | |
1371 | namespace and to declare a local character length. */ | |
1372 | if (!byref && sym->attr.function | |
1373 | && sym->ts.type == BT_CHARACTER | |
1374 | && sym->ts.deferred | |
1375 | && sym->ts.u.cl->passed_length == NULL | |
1376 | && sym->ts.u.cl->backend_decl | |
1377 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1378 | { | |
1379 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1380 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1381 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
617125a6 | 1382 | } |
1383 | ||
8b9eb27e | 1384 | fun_or_res = byref && (sym->attr.result |
1385 | || (sym->attr.function && sym->ts.deferred)); | |
1386 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1387 | { |
1388 | /* Return via extra parameter. */ | |
1389 | if (sym->attr.result && byref | |
1390 | && !sym->backend_decl) | |
1391 | { | |
1392 | sym->backend_decl = | |
1393 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1394 | /* For entry master function skip over the __entry |
1395 | argument. */ | |
1396 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1397 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1398 | } |
1399 | ||
1400 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1401 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1402 | |
1403 | /* Create a character length variable. */ | |
1404 | if (sym->ts.type == BT_CHARACTER) | |
1405 | { | |
617125a6 | 1406 | /* For a deferred dummy, make a new string length variable. */ |
1407 | if (sym->ts.deferred | |
1408 | && | |
1409 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1410 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1411 | ||
d1b1479f | 1412 | if (sym->ts.deferred && byref) |
617125a6 | 1413 | { |
d1b1479f | 1414 | /* The string length of a deferred char array is stored in the |
1415 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1416 | marked as a result. Exempt this variable from generating a | |
1417 | temporary for it. */ | |
1418 | if (sym->attr.result) | |
1419 | { | |
1420 | /* We need to insert a indirect ref for param decls. */ | |
1421 | if (sym->ts.u.cl->backend_decl | |
1422 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1423 | { |
1424 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
d1b1479f | 1425 | sym->ts.u.cl->backend_decl = |
1426 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1427 | } | |
ddcfeaf1 | 1428 | } |
d1b1479f | 1429 | /* For all other parameters make sure, that they are copied so |
1430 | that the value and any modifications are local to the routine | |
1431 | by generating a temporary variable. */ | |
1432 | else if (sym->attr.function | |
1433 | && sym->ts.u.cl->passed_length == NULL | |
1434 | && sym->ts.u.cl->backend_decl) | |
1435 | { | |
1436 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1437 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1438 | sym->ts.u.cl->backend_decl | |
1439 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1440 | else | |
d1b1479f | 1441 | sym->ts.u.cl->backend_decl = NULL_TREE; |
1442 | } | |
617125a6 | 1443 | } |
1444 | ||
eeebe20b | 1445 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1446 | length = gfc_create_string_length (sym); |
1447 | else | |
eeebe20b | 1448 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1449 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1450 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1451 | { |
d95efb59 | 1452 | /* Add the string length to the same context as the symbol. */ |
1453 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1454 | gfc_add_decl_to_function (length); | |
1455 | else | |
1456 | gfc_add_decl_to_parent_function (length); | |
1457 | ||
1458 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1459 | DECL_CONTEXT (length)); | |
1460 | ||
d4163395 | 1461 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1462 | } |
4ee9c684 | 1463 | } |
1464 | ||
1465 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1466 | if ((sym->attr.dimension || sym->attr.codimension) |
1467 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1468 | { |
d95efb59 | 1469 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1470 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1471 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1472 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1473 | sym->backend_decl = decl; | |
4ee9c684 | 1474 | } |
1475 | ||
c6793847 | 1476 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1477 | some caller is expecting an expression to apply the component refs to. | |
1478 | Therefore the descriptor is only created and stored in | |
1479 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1480 | responsible to extract it from there, when the descriptor is | |
1481 | desired. */ | |
1482 | if (IS_CLASS_ARRAY (sym) | |
1483 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1484 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1485 | { | |
1486 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1487 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1488 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1489 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1490 | sym->backend_decl = decl; | |
1491 | } | |
1492 | ||
4ee9c684 | 1493 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1494 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1495 | { | |
1496 | gfc_add_assign_aux_vars (sym); | |
1497 | } | |
9579733e | 1498 | |
c6793847 | 1499 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
9579733e | 1500 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1501 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1502 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1503 | gfc_nonlocal_dummy_array_decl (sym); | |
1504 | ||
fd23cc08 | 1505 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1506 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1507 | ||
fd23cc08 | 1508 | return sym->backend_decl; |
4ee9c684 | 1509 | } |
1510 | ||
1511 | if (sym->backend_decl) | |
1512 | return sym->backend_decl; | |
1513 | ||
a25debd0 | 1514 | /* Special case for array-valued named constants from intrinsic |
1515 | procedures; those are inlined. */ | |
d566c3e0 | 1516 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1517 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1518 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1519 | intrinsic_array_parameter = true; |
1520 | ||
044bbd71 | 1521 | /* If use associated compilation, use the module |
094bca96 | 1522 | declaration. */ |
044bbd71 | 1523 | if ((sym->attr.flavor == FL_VARIABLE |
1524 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1525 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1526 | && !intrinsic_array_parameter |
1527 | && sym->module | |
1528 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1529 | { |
1530 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1531 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1532 | return sym->backend_decl; | |
1533 | } | |
7ea64434 | 1534 | |
4ee9c684 | 1535 | if (sym->attr.flavor == FL_PROCEDURE) |
1536 | { | |
77d080ca | 1537 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1538 | procedure pointers and procptr initialization targets. */ |
77d080ca | 1539 | if (sym->attr.use_assoc || sym->attr.intrinsic |
1540 | || sym->attr.if_source != IFSRC_DECL) | |
802532b9 | 1541 | { |
1542 | decl = gfc_get_extern_function_decl (sym); | |
1543 | gfc_set_decl_location (decl, &sym->declared_at); | |
1544 | } | |
1545 | else | |
1546 | { | |
1547 | if (!sym->backend_decl) | |
1548 | build_function_decl (sym, false); | |
1549 | decl = sym->backend_decl; | |
1550 | } | |
4ee9c684 | 1551 | return decl; |
1552 | } | |
1553 | ||
1554 | if (sym->attr.intrinsic) | |
382ad5c3 | 1555 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1556 | |
1557 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1558 | type declaration. For associate names, the target character |
1559 | length is used. Set 'length' to a constant so that if the | |
1560 | string lenght is a variable, it is not finished a second time. */ | |
4ee9c684 | 1561 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1562 | { |
1563 | if (sym->attr.associate_var | |
1564 | && sym->ts.u.cl->backend_decl | |
1565 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
1566 | length = gfc_index_zero_node; | |
1567 | else | |
1568 | length = gfc_create_string_length (sym); | |
1569 | } | |
4ee9c684 | 1570 | |
1571 | /* Create the decl for the variable. */ | |
e60a6f7b | 1572 | decl = build_decl (sym->declared_at.lb->location, |
1573 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1574 | |
1236e28b | 1575 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1576 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1577 | decl_attributes (&decl, attributes, 0); | |
1578 | ||
f888a3fb | 1579 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1580 | This is done here rather than in gfc_finish_var_decl because it |
1581 | is different for string length variables. */ | |
4f0fae8e | 1582 | if (sym->module) |
df4d540f | 1583 | { |
1236e28b | 1584 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1585 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1586 | DECL_IGNORED_P (decl) = 1; |
1587 | } | |
4ee9c684 | 1588 | |
bc5663df | 1589 | if (sym->attr.select_type_temporary) |
1590 | { | |
1591 | DECL_ARTIFICIAL (decl) = 1; | |
1592 | DECL_IGNORED_P (decl) = 1; | |
1593 | } | |
1594 | ||
7a777e43 | 1595 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1596 | { |
1597 | /* Create variables to hold the non-constant bits of array info. */ | |
1598 | gfc_build_qualified_array (decl, sym); | |
1599 | ||
b3c3927c | 1600 | if (sym->attr.contiguous |
1601 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1602 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1603 | } | |
1604 | ||
0a96a7cc | 1605 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1606 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1607 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1608 | (CLASS_DATA (sym)->attr.dimension |
1609 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1610 | || (sym->ts.type == BT_DERIVED |
1611 | && (sym->ts.u.derived->attr.alloc_comp | |
1612 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1613 | && !sym->ns->proc_name->attr.is_main_program | |
1614 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1615 | /* This applies a derived type default initializer. */ |
1616 | || (sym->ts.type == BT_DERIVED | |
1617 | && sym->attr.save == SAVE_NONE | |
1618 | && !sym->attr.data | |
1619 | && !sym->attr.allocatable | |
1620 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1621 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1622 | gfc_defer_symbol_init (sym); |
2294b616 | 1623 | |
4ee9c684 | 1624 | gfc_finish_var_decl (decl, sym); |
1625 | ||
bda1f152 | 1626 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1627 | { |
4ee9c684 | 1628 | /* Character variables need special handling. */ |
1629 | gfc_allocate_lang_decl (decl); | |
1630 | ||
c3639856 | 1631 | /* Associate names can use the hidden string length variable |
1632 | of their associated target. */ | |
bda1f152 | 1633 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1634 | { |
4ee9c684 | 1635 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1636 | gcc_assert (!sym->value); |
4ee9c684 | 1637 | } |
4ee9c684 | 1638 | } |
1033248c | 1639 | else if (sym->attr.subref_array_pointer) |
1640 | { | |
1641 | /* We need the span for these beasts. */ | |
1642 | gfc_allocate_lang_decl (decl); | |
1643 | } | |
1644 | ||
1645 | if (sym->attr.subref_array_pointer) | |
1646 | { | |
1647 | tree span; | |
1648 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1649 | span = build_decl (input_location, |
1650 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1651 | gfc_array_index_type); |
1652 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1653 | TREE_STATIC (span) = TREE_STATIC (decl); |
1654 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1655 | |
1656 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1657 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1658 | } |
1659 | ||
fd23cc08 | 1660 | if (sym->ts.type == BT_CLASS) |
1661 | GFC_DECL_CLASS(decl) = 1; | |
1662 | ||
4ee9c684 | 1663 | sym->backend_decl = decl; |
1664 | ||
c8f1568f | 1665 | if (sym->attr.assign) |
21ebda4d | 1666 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1667 | |
cd2c99b8 | 1668 | if (intrinsic_array_parameter) |
1669 | { | |
1670 | TREE_STATIC (decl) = 1; | |
1671 | DECL_EXTERNAL (decl) = 0; | |
1672 | } | |
1673 | ||
1674 | if (TREE_STATIC (decl) | |
1675 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1676 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
eb106faf | 1677 | || flag_max_stack_var_size == 0 |
a961ca30 | 1678 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1679 | && (flag_coarray != GFC_FCOARRAY_LIB |
0d3bb1de | 1680 | || !sym->attr.codimension || sym->attr.allocatable)) |
a545a8f8 | 1681 | { |
1682 | /* Add static initializer. For procedures, it is only needed if | |
1683 | SAVE is specified otherwise they need to be reinitialized | |
1684 | every time the procedure is entered. The TREE_STATIC is | |
1685 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1686 | |
bda1f152 | 1687 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1688 | TREE_TYPE (decl), sym->attr.dimension |
1689 | || (sym->attr.codimension | |
1690 | && sym->attr.allocatable), | |
1691 | sym->attr.pointer || sym->attr.allocatable | |
1692 | || sym->ts.type == BT_CLASS, | |
1693 | sym->attr.proc_pointer); | |
bda1f152 | 1694 | } |
1695 | ||
9579733e | 1696 | if (!TREE_STATIC (decl) |
1697 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1698 | && !sym->attr.pointer | |
1699 | && !sym->attr.allocatable | |
bc5663df | 1700 | && !sym->attr.proc_pointer |
1701 | && !sym->attr.select_type_temporary) | |
9579733e | 1702 | DECL_BY_REFERENCE (decl) = 1; |
1703 | ||
cf5f881f | 1704 | if (sym->attr.associate_var) |
1705 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1706 | ||
ebad7c3e | 1707 | if (sym->attr.vtab |
1708 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1709 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1710 | |
4ee9c684 | 1711 | return decl; |
1712 | } | |
1713 | ||
1714 | ||
dbe60343 | 1715 | /* Substitute a temporary variable in place of the real one. */ |
1716 | ||
1717 | void | |
1718 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1719 | { | |
1720 | save->attr = sym->attr; | |
1721 | save->decl = sym->backend_decl; | |
1722 | ||
1723 | gfc_clear_attr (&sym->attr); | |
1724 | sym->attr.referenced = 1; | |
1725 | sym->attr.flavor = FL_VARIABLE; | |
1726 | ||
1727 | sym->backend_decl = decl; | |
1728 | } | |
1729 | ||
1730 | ||
1731 | /* Restore the original variable. */ | |
1732 | ||
1733 | void | |
1734 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1735 | { | |
1736 | sym->attr = save->attr; | |
1737 | sym->backend_decl = save->decl; | |
1738 | } | |
1739 | ||
1740 | ||
cad0ddcf | 1741 | /* Declare a procedure pointer. */ |
1742 | ||
1743 | static tree | |
1744 | get_proc_pointer_decl (gfc_symbol *sym) | |
1745 | { | |
1746 | tree decl; | |
36b0a1b0 | 1747 | tree attributes; |
cad0ddcf | 1748 | |
1749 | decl = sym->backend_decl; | |
1750 | if (decl) | |
1751 | return decl; | |
1752 | ||
e60a6f7b | 1753 | decl = build_decl (input_location, |
1754 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1755 | build_pointer_type (gfc_get_function_type (sym))); |
1756 | ||
ea6f8461 | 1757 | if (sym->module) |
1758 | { | |
1759 | /* Apply name mangling. */ | |
1760 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1761 | if (sym->attr.use_assoc) | |
1762 | DECL_IGNORED_P (decl) = 1; | |
1763 | } | |
a90fe829 | 1764 | |
e72f979a | 1765 | if ((sym->ns->proc_name |
1766 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1767 | || sym->attr.contained) |
1768 | gfc_add_decl_to_function (decl); | |
cf269acc | 1769 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1770 | gfc_add_decl_to_parent_function (decl); |
1771 | ||
1772 | sym->backend_decl = decl; | |
1773 | ||
cf269acc | 1774 | /* If a variable is USE associated, it's always external. */ |
1775 | if (sym->attr.use_assoc) | |
1776 | { | |
1777 | DECL_EXTERNAL (decl) = 1; | |
1778 | TREE_PUBLIC (decl) = 1; | |
1779 | } | |
1780 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1781 | { | |
1782 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1783 | TREE_PUBLIC (decl) = 1; |
1784 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1785 | { | |
1786 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1787 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1788 | } | |
cf269acc | 1789 | TREE_STATIC (decl) = 1; |
1790 | } | |
1791 | ||
cad0ddcf | 1792 | if (!sym->attr.use_assoc |
1793 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1794 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1795 | TREE_STATIC (decl) = 1; | |
1796 | ||
1797 | if (TREE_STATIC (decl) && sym->value) | |
1798 | { | |
1799 | /* Add static initializer. */ | |
1800 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1801 | TREE_TYPE (decl), |
1802 | sym->attr.dimension, | |
1803 | false, true); | |
cad0ddcf | 1804 | } |
1805 | ||
8fb1768c | 1806 | /* Handle threadprivate procedure pointers. */ |
1807 | if (sym->attr.threadprivate | |
1808 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1809 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1810 | |
36b0a1b0 | 1811 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1812 | decl_attributes (&decl, attributes, 0); | |
1813 | ||
cad0ddcf | 1814 | return decl; |
1815 | } | |
1816 | ||
1817 | ||
4ee9c684 | 1818 | /* Get a basic decl for an external function. */ |
1819 | ||
1820 | tree | |
1821 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1822 | { | |
1823 | tree type; | |
1824 | tree fndecl; | |
36b0a1b0 | 1825 | tree attributes; |
4ee9c684 | 1826 | gfc_expr e; |
1827 | gfc_intrinsic_sym *isym; | |
1828 | gfc_expr argexpr; | |
17000b91 | 1829 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1830 | tree name; |
1831 | tree mangled_name; | |
83aeedb9 | 1832 | gfc_gsymbol *gsym; |
4ee9c684 | 1833 | |
1834 | if (sym->backend_decl) | |
1835 | return sym->backend_decl; | |
1836 | ||
1b716045 | 1837 | /* We should never be creating external decls for alternate entry points. |
1838 | The procedure may be an alternate entry point, but we don't want/need | |
1839 | to know that. */ | |
22d678e8 | 1840 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1841 | |
cad0ddcf | 1842 | if (sym->attr.proc_pointer) |
1843 | return get_proc_pointer_decl (sym); | |
1844 | ||
83aeedb9 | 1845 | /* See if this is an external procedure from the same file. If so, |
1846 | return the backend_decl. */ | |
da5c730d | 1847 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1848 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1849 | |
c8b913ab | 1850 | if (gsym && !gsym->defined) |
1851 | gsym = NULL; | |
1852 | ||
1853 | /* This can happen because of C binding. */ | |
1854 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1855 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1856 | goto module_sym; | |
1857 | ||
044bbd71 | 1858 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1859 | && !sym->backend_decl | |
1860 | && gsym && gsym->ns | |
1861 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1862 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1863 | { |
d896f9b3 | 1864 | if (!gsym->ns->proc_name->backend_decl) |
1865 | { | |
1866 | /* By construction, the external function cannot be | |
1867 | a contained procedure. */ | |
1868 | locus old_loc; | |
d896f9b3 | 1869 | |
4671339c | 1870 | gfc_save_backend_locus (&old_loc); |
9078126c | 1871 | push_cfun (NULL); |
d896f9b3 | 1872 | |
1873 | gfc_create_function_decl (gsym->ns, true); | |
1874 | ||
1875 | pop_cfun (); | |
4671339c | 1876 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1877 | } |
1878 | ||
83aeedb9 | 1879 | /* If the namespace has entries, the proc_name is the |
1880 | entry master. Find the entry and use its backend_decl. | |
1881 | otherwise, use the proc_name backend_decl. */ | |
1882 | if (gsym->ns->entries) | |
1883 | { | |
1884 | gfc_entry_list *entry = gsym->ns->entries; | |
1885 | ||
1886 | for (; entry; entry = entry->next) | |
1887 | { | |
1888 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1889 | { | |
1890 | sym->backend_decl = entry->sym->backend_decl; | |
1891 | break; | |
1892 | } | |
1893 | } | |
1894 | } | |
1895 | else | |
40c74b02 | 1896 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1897 | |
1898 | if (sym->backend_decl) | |
40c74b02 | 1899 | { |
1900 | /* Avoid problems of double deallocation of the backend declaration | |
1901 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1902 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1903 | sym->attr.use_assoc = 0; | |
1904 | ||
1905 | return sym->backend_decl; | |
1906 | } | |
83aeedb9 | 1907 | } |
1908 | ||
7ea64434 | 1909 | /* See if this is a module procedure from the same file. If so, |
1910 | return the backend_decl. */ | |
1911 | if (sym->module) | |
1912 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1913 | ||
c8b913ab | 1914 | module_sym: |
1915 | if (gsym && gsym->ns | |
1916 | && (gsym->type == GSYM_MODULE | |
1917 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 1918 | { |
1919 | gfc_symbol *s; | |
1920 | ||
1921 | s = NULL; | |
c8b913ab | 1922 | if (gsym->type == GSYM_MODULE) |
1923 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1924 | else | |
1925 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
1926 | ||
7ea64434 | 1927 | if (s && s->backend_decl) |
1928 | { | |
85ec2f13 | 1929 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1930 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1931 | true); | |
1932 | else if (sym->ts.type == BT_CHARACTER) | |
1933 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1934 | sym->backend_decl = s->backend_decl; |
1935 | return sym->backend_decl; | |
1936 | } | |
1937 | } | |
1938 | ||
4ee9c684 | 1939 | if (sym->attr.intrinsic) |
1940 | { | |
1941 | /* Call the resolution function to get the actual name. This is | |
1942 | a nasty hack which relies on the resolution functions only looking | |
1943 | at the first argument. We pass NULL for the second argument | |
1944 | otherwise things like AINT get confused. */ | |
1945 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1946 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1947 | |
1948 | memset (&e, 0, sizeof (e)); | |
1949 | e.expr_type = EXPR_FUNCTION; | |
1950 | ||
1951 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1952 | gcc_assert (isym->formal); |
4ee9c684 | 1953 | argexpr.ts = isym->formal->ts; |
1954 | ||
1955 | if (isym->formal->next == NULL) | |
1956 | isym->resolve.f1 (&e, &argexpr); | |
1957 | else | |
1958 | { | |
37e0271a | 1959 | if (isym->formal->next->next == NULL) |
1960 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1961 | else | |
1962 | { | |
7fe55cc9 | 1963 | if (isym->formal->next->next->next == NULL) |
1964 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1965 | else | |
1966 | { | |
1967 | /* All specific intrinsics take less than 5 arguments. */ | |
1968 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1969 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1970 | } | |
37e0271a | 1971 | } |
4ee9c684 | 1972 | } |
bdaed7d2 | 1973 | |
829d7a08 | 1974 | if (flag_f2c |
bdaed7d2 | 1975 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
1976 | || e.ts.type == BT_COMPLEX)) | |
1977 | { | |
1978 | /* Specific which needs a different implementation if f2c | |
1979 | calling conventions are used. */ | |
17000b91 | 1980 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1981 | } |
1982 | else | |
17000b91 | 1983 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1984 | |
4ee9c684 | 1985 | name = get_identifier (s); |
1986 | mangled_name = name; | |
1987 | } | |
1988 | else | |
1989 | { | |
1990 | name = gfc_sym_identifier (sym); | |
1991 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1992 | } | |
1993 | ||
1994 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1995 | fndecl = build_decl (input_location, |
1996 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1997 | |
e27454ee | 1998 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1999 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2000 | the opposite of declaring a function as static in C). */ |
e27454ee | 2001 | DECL_EXTERNAL (fndecl) = 1; |
2002 | TREE_PUBLIC (fndecl) = 1; | |
2003 | ||
1236e28b | 2004 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2005 | decl_attributes (&fndecl, attributes, 0); | |
2006 | ||
2007 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2008 | |
2009 | /* Set the context of this decl. */ | |
2010 | if (0 && sym->ns && sym->ns->proc_name) | |
2011 | { | |
2012 | /* TODO: Add external decls to the appropriate scope. */ | |
2013 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2014 | } | |
2015 | else | |
2016 | { | |
f888a3fb | 2017 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2018 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2019 | } | |
2020 | ||
4ee9c684 | 2021 | /* Set attributes for PURE functions. A call to PURE function in the |
2022 | Fortran 95 sense is both pure and without side effects in the C | |
2023 | sense. */ | |
bead0399 | 2024 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2025 | { |
4d4b9f0e | 2026 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2027 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2028 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2029 | parameters and don't use alternate returns (is this | |
2030 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2031 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2032 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2033 | } |
2034 | ||
6e27d773 | 2035 | /* Mark non-returning functions. */ |
2036 | if (sym->attr.noreturn) | |
2037 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2038 | ||
4ee9c684 | 2039 | sym->backend_decl = fndecl; |
2040 | ||
2041 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2042 | pushdecl_top_level (fndecl); | |
2043 | ||
15b28553 | 2044 | if (sym->formal_ns |
2045 | && sym->formal_ns->proc_name == sym | |
2046 | && sym->formal_ns->omp_declare_simd) | |
2047 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2048 | ||
4ee9c684 | 2049 | return fndecl; |
2050 | } | |
2051 | ||
2052 | ||
2053 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2054 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2055 | a master function with alternate entry points. */ | |
4ee9c684 | 2056 | |
1b716045 | 2057 | static void |
d896f9b3 | 2058 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2059 | { |
36b0a1b0 | 2060 | tree fndecl, type, attributes; |
4ee9c684 | 2061 | symbol_attribute attr; |
1b716045 | 2062 | tree result_decl; |
4ee9c684 | 2063 | gfc_formal_arglist *f; |
2064 | ||
22d678e8 | 2065 | gcc_assert (!sym->attr.external); |
4ee9c684 | 2066 | |
802532b9 | 2067 | if (sym->backend_decl) |
2068 | return; | |
2069 | ||
b31f705b | 2070 | /* Set the line and filename. sym->declared_at seems to point to the |
2071 | last statement for subroutines, but it'll do for now. */ | |
2072 | gfc_set_backend_locus (&sym->declared_at); | |
2073 | ||
4ee9c684 | 2074 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2075 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2076 | || DECL_FILE_SCOPE_P (current_function_decl) |
2077 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2078 | == NAMESPACE_DECL)); | |
4ee9c684 | 2079 | |
2080 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2081 | fndecl = build_decl (input_location, |
2082 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2083 | |
1236e28b | 2084 | attr = sym->attr; |
2085 | ||
e27454ee | 2086 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2087 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2088 | the opposite of declaring a function as static in C). */ |
e27454ee | 2089 | DECL_EXTERNAL (fndecl) = 0; |
2090 | ||
7d6b5754 | 2091 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2092 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2093 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2094 | && flag_module_private))) |
7d6b5754 | 2095 | sym->attr.access = ACCESS_PRIVATE; |
2096 | ||
e27454ee | 2097 | if (!current_function_decl |
c5cb468c | 2098 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2099 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2100 | || sym->attr.public_used)) | |
e27454ee | 2101 | TREE_PUBLIC (fndecl) = 1; |
2102 | ||
9e45357a | 2103 | if (sym->attr.referenced || sym->attr.entry_master) |
2104 | TREE_USED (fndecl) = 1; | |
2105 | ||
1236e28b | 2106 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2107 | decl_attributes (&fndecl, attributes, 0); | |
2108 | ||
4ee9c684 | 2109 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2110 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2111 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2112 | result_decl = NULL_TREE; |
2113 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2114 | if (attr.function) | |
2115 | { | |
2116 | if (gfc_return_by_reference (sym)) | |
2117 | type = void_type_node; | |
2118 | else | |
2119 | { | |
2120 | if (sym->result != sym) | |
2121 | result_decl = gfc_sym_identifier (sym->result); | |
2122 | ||
2123 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2124 | } | |
2125 | } | |
2126 | else | |
2127 | { | |
2128 | /* Look for alternate return placeholders. */ | |
2129 | int has_alternate_returns = 0; | |
6777213b | 2130 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2131 | { |
2132 | if (f->sym == NULL) | |
2133 | { | |
2134 | has_alternate_returns = 1; | |
2135 | break; | |
2136 | } | |
2137 | } | |
2138 | ||
2139 | if (has_alternate_returns) | |
2140 | type = integer_type_node; | |
2141 | else | |
2142 | type = void_type_node; | |
2143 | } | |
2144 | ||
e60a6f7b | 2145 | result_decl = build_decl (input_location, |
2146 | RESULT_DECL, result_decl, type); | |
540edea7 | 2147 | DECL_ARTIFICIAL (result_decl) = 1; |
2148 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2149 | DECL_CONTEXT (result_decl) = fndecl; |
2150 | DECL_RESULT (fndecl) = result_decl; | |
2151 | ||
2152 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2153 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2154 | |
4ee9c684 | 2155 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2156 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2157 | |
f888a3fb | 2158 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2159 | Fortran 95 sense is both pure and without side effects in the C |
2160 | sense. */ | |
bead0399 | 2161 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2162 | { |
be393645 | 2163 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2164 | including an alternate return. In that case it can also be |
231e961a | 2165 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2166 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2167 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2168 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2169 | } | |
2170 | ||
36b0a1b0 | 2171 | |
4ee9c684 | 2172 | /* Layout the function declaration and put it in the binding level |
2173 | of the current function. */ | |
d896f9b3 | 2174 | |
4c197fd0 | 2175 | if (global) |
d896f9b3 | 2176 | pushdecl_top_level (fndecl); |
2177 | else | |
2178 | pushdecl (fndecl); | |
1b716045 | 2179 | |
16a40513 | 2180 | /* Perform name mangling if this is a top level or module procedure. */ |
2181 | if (current_function_decl == NULL_TREE) | |
2182 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2183 | ||
1b716045 | 2184 | sym->backend_decl = fndecl; |
2185 | } | |
2186 | ||
2187 | ||
2188 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2189 | ||
2190 | static void | |
2191 | create_function_arglist (gfc_symbol * sym) | |
2192 | { | |
2193 | tree fndecl; | |
2194 | gfc_formal_arglist *f; | |
d4163395 | 2195 | tree typelist, hidden_typelist; |
2196 | tree arglist, hidden_arglist; | |
1b716045 | 2197 | tree type; |
2198 | tree parm; | |
2199 | ||
2200 | fndecl = sym->backend_decl; | |
2201 | ||
e4b2c26c | 2202 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2203 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2204 | arglist = NULL_TREE; |
d4163395 | 2205 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2206 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2207 | |
2208 | if (sym->attr.entry_master) | |
2209 | { | |
2210 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2211 | parm = build_decl (input_location, |
2212 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2213 | |
1b716045 | 2214 | DECL_CONTEXT (parm) = fndecl; |
2215 | DECL_ARG_TYPE (parm) = type; | |
2216 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2217 | gfc_finish_decl (parm); |
d95efb59 | 2218 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2219 | |
2220 | arglist = chainon (arglist, parm); | |
2221 | typelist = TREE_CHAIN (typelist); | |
2222 | } | |
2223 | ||
e4b2c26c | 2224 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2225 | { |
d4163395 | 2226 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2227 | |
e4b2c26c | 2228 | if (sym->ts.type == BT_CHARACTER) |
2229 | { | |
e4b2c26c | 2230 | /* Length of character result. */ |
d4163395 | 2231 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2232 | |
e60a6f7b | 2233 | length = build_decl (input_location, |
2234 | PARM_DECL, | |
e4b2c26c | 2235 | get_identifier (".__result"), |
d4163395 | 2236 | len_type); |
eeebe20b | 2237 | if (!sym->ts.u.cl->length) |
e4b2c26c | 2238 | { |
eeebe20b | 2239 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2240 | TREE_USED (length) = 1; |
4ee9c684 | 2241 | } |
22d678e8 | 2242 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2243 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2244 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2245 | TREE_READONLY (length) = 1; |
b5b40b3f | 2246 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2247 | gfc_finish_decl (length); |
eeebe20b | 2248 | if (sym->ts.u.cl->backend_decl == NULL |
2249 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2250 | { |
2251 | gfc_symbol *arg; | |
2252 | tree backend_decl; | |
4ee9c684 | 2253 | |
eeebe20b | 2254 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2255 | { |
e60a6f7b | 2256 | tree len = build_decl (input_location, |
2257 | VAR_DECL, | |
d4163395 | 2258 | get_identifier ("..__result"), |
2259 | gfc_charlen_type_node); | |
2260 | DECL_ARTIFICIAL (len) = 1; | |
2261 | TREE_USED (len) = 1; | |
eeebe20b | 2262 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2263 | } |
4ee9c684 | 2264 | |
d4163395 | 2265 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2266 | arg = sym->result ? sym->result : sym; | |
2267 | backend_decl = arg->backend_decl; | |
2268 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2269 | type. */ | |
2270 | arg->backend_decl = NULL; | |
2271 | type = gfc_sym_type (arg); | |
2272 | arg->backend_decl = backend_decl; | |
2273 | type = build_reference_type (type); | |
ddcfeaf1 | 2274 | |
2275 | if (POINTER_TYPE_P (len_type)) | |
2276 | { | |
2277 | sym->ts.u.cl->passed_length = length; | |
2278 | sym->ts.u.cl->backend_decl = | |
2279 | build_fold_indirect_ref_loc (input_location, length); | |
2280 | } | |
d4163395 | 2281 | } |
2282 | } | |
4ee9c684 | 2283 | |
e60a6f7b | 2284 | parm = build_decl (input_location, |
2285 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2286 | |
d4163395 | 2287 | DECL_CONTEXT (parm) = fndecl; |
2288 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2289 | TREE_READONLY (parm) = 1; | |
2290 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2291 | gfc_finish_decl (parm); |
4ee9c684 | 2292 | |
d4163395 | 2293 | arglist = chainon (arglist, parm); |
2294 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2295 | |
d4163395 | 2296 | if (sym->ts.type == BT_CHARACTER) |
2297 | { | |
2298 | gfc_allocate_lang_decl (parm); | |
2299 | arglist = chainon (arglist, length); | |
e4b2c26c | 2300 | typelist = TREE_CHAIN (typelist); |
2301 | } | |
2302 | } | |
4ee9c684 | 2303 | |
d4163395 | 2304 | hidden_typelist = typelist; |
6777213b | 2305 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2306 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2307 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2308 | ||
6777213b | 2309 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2310 | { |
2311 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2312 | |
e4b2c26c | 2313 | /* Ignore alternate returns. */ |
2314 | if (f->sym == NULL) | |
2315 | continue; | |
4ee9c684 | 2316 | |
e4b2c26c | 2317 | type = TREE_VALUE (typelist); |
4ee9c684 | 2318 | |
296db1d1 | 2319 | if (f->sym->ts.type == BT_CHARACTER |
2320 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2321 | { |
2322 | tree len_type = TREE_VALUE (hidden_typelist); | |
2323 | tree length = NULL_TREE; | |
617125a6 | 2324 | if (!f->sym->ts.deferred) |
2325 | gcc_assert (len_type == gfc_charlen_type_node); | |
2326 | else | |
2327 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2328 | |
2329 | strcpy (&name[1], f->sym->name); | |
2330 | name[0] = '_'; | |
e60a6f7b | 2331 | length = build_decl (input_location, |
2332 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2333 | |
d4163395 | 2334 | hidden_arglist = chainon (hidden_arglist, length); |
2335 | DECL_CONTEXT (length) = fndecl; | |
2336 | DECL_ARTIFICIAL (length) = 1; | |
2337 | DECL_ARG_TYPE (length) = len_type; | |
2338 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2339 | gfc_finish_decl (length); |
4ee9c684 | 2340 | |
a4abf8a0 | 2341 | /* Remember the passed value. */ |
a90fe829 | 2342 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2343 | { |
2344 | /* This can happen if the same type is used for multiple | |
2345 | arguments. We need to copy cl as otherwise | |
2346 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2347 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2348 | } |
eeebe20b | 2349 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2350 | |
d4163395 | 2351 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2352 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2353 | { |
d4163395 | 2354 | TREE_USED (length) = 1; |
eeebe20b | 2355 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2356 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2357 | } |
2358 | ||
2359 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2360 | ||
eeebe20b | 2361 | if (f->sym->ts.u.cl->backend_decl == NULL |
2362 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2363 | { |
ddcfeaf1 | 2364 | if (POINTER_TYPE_P (len_type)) |
2365 | f->sym->ts.u.cl->backend_decl = | |
2366 | build_fold_indirect_ref_loc (input_location, length); | |
2367 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2368 | gfc_create_string_length (f->sym); |
2369 | ||
2370 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2371 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2372 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2373 | else | |
2374 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2375 | } |
4ee9c684 | 2376 | } |
532c2d79 | 2377 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2378 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2379 | Thus, we will use a hidden argument in that case. */ |
2380 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2381 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
532c2d79 | 2382 | && f->sym->ts.type != BT_DERIVED) |
2383 | { | |
2384 | tree tmp; | |
2385 | strcpy (&name[1], f->sym->name); | |
2386 | name[0] = '_'; | |
2387 | tmp = build_decl (input_location, | |
2388 | PARM_DECL, get_identifier (name), | |
2389 | boolean_type_node); | |
2390 | ||
2391 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2392 | DECL_CONTEXT (tmp) = fndecl; | |
2393 | DECL_ARTIFICIAL (tmp) = 1; | |
2394 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2395 | TREE_READONLY (tmp) = 1; | |
2396 | gfc_finish_decl (tmp); | |
2397 | } | |
4ee9c684 | 2398 | |
d4163395 | 2399 | /* For non-constant length array arguments, make sure they use |
2400 | a different type node from TYPE_ARG_TYPES type. */ | |
2401 | if (f->sym->attr.dimension | |
2402 | && type == TREE_VALUE (typelist) | |
2403 | && TREE_CODE (type) == POINTER_TYPE | |
2404 | && GFC_ARRAY_TYPE_P (type) | |
2405 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2406 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2407 | { | |
2408 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2409 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2410 | else | |
2411 | type = gfc_sym_type (f->sym); | |
2412 | } | |
2413 | ||
cad0ddcf | 2414 | if (f->sym->attr.proc_pointer) |
2415 | type = build_pointer_type (type); | |
2416 | ||
2364aa60 | 2417 | if (f->sym->attr.volatile_) |
2418 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2419 | ||
69b1505f | 2420 | /* Build the argument declaration. */ |
e60a6f7b | 2421 | parm = build_decl (input_location, |
2422 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2423 | |
2364aa60 | 2424 | if (f->sym->attr.volatile_) |
2425 | { | |
2426 | TREE_THIS_VOLATILE (parm) = 1; | |
2427 | TREE_SIDE_EFFECTS (parm) = 1; | |
2428 | } | |
2429 | ||
d4163395 | 2430 | /* Fill in arg stuff. */ |
2431 | DECL_CONTEXT (parm) = fndecl; | |
2432 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2433 | /* All implementation args except for VALUE are read-only. */ |
2434 | if (!f->sym->attr.value) | |
2435 | TREE_READONLY (parm) = 1; | |
98923a84 | 2436 | if (POINTER_TYPE_P (type) |
2437 | && (!f->sym->attr.proc_pointer | |
2438 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2439 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2440 | |
b9c7fce7 | 2441 | gfc_finish_decl (parm); |
cf5f881f | 2442 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2443 | |
2444 | f->sym->backend_decl = parm; | |
2445 | ||
7dce33fe | 2446 | /* Coarrays which are descriptorless or assumed-shape pass with |
2447 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2448 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2449 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2450 | && !f->sym->attr.allocatable) | |
2451 | || (f->sym->ts.type == BT_CLASS | |
2452 | && CLASS_DATA (f->sym)->attr.codimension | |
2453 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2454 | { |
2455 | tree caf_type; | |
2456 | tree token; | |
2457 | tree offset; | |
2458 | ||
2459 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2460 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2461 | caf_type = f->sym->ts.type == BT_CLASS |
2462 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2463 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2464 | |
85c94a64 | 2465 | token = build_decl (input_location, PARM_DECL, |
2466 | create_tmp_var_name ("caf_token"), | |
2467 | build_qualified_type (pvoid_type_node, | |
2468 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2469 | if ((f->sym->ts.type != BT_CLASS |
2470 | && f->sym->as->type != AS_DEFERRED) | |
2471 | || (f->sym->ts.type == BT_CLASS | |
2472 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2473 | { |
2474 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2475 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2476 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2477 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2478 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2479 | } | |
2480 | else | |
2481 | { | |
2482 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2483 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2484 | } | |
a90fe829 | 2485 | |
85c94a64 | 2486 | DECL_CONTEXT (token) = fndecl; |
2487 | DECL_ARTIFICIAL (token) = 1; | |
2488 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2489 | TREE_READONLY (token) = 1; | |
2490 | hidden_arglist = chainon (hidden_arglist, token); | |
2491 | gfc_finish_decl (token); | |
2492 | ||
85c94a64 | 2493 | offset = build_decl (input_location, PARM_DECL, |
2494 | create_tmp_var_name ("caf_offset"), | |
2495 | gfc_array_index_type); | |
2496 | ||
d44f2f7c | 2497 | if ((f->sym->ts.type != BT_CLASS |
2498 | && f->sym->as->type != AS_DEFERRED) | |
2499 | || (f->sym->ts.type == BT_CLASS | |
2500 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2501 | { |
2502 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2503 | == NULL_TREE); | |
2504 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2505 | } | |
2506 | else | |
2507 | { | |
2508 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2509 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2510 | } | |
85c94a64 | 2511 | DECL_CONTEXT (offset) = fndecl; |
2512 | DECL_ARTIFICIAL (offset) = 1; | |
2513 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2514 | TREE_READONLY (offset) = 1; | |
2515 | hidden_arglist = chainon (hidden_arglist, offset); | |
2516 | gfc_finish_decl (offset); | |
2517 | } | |
2518 | ||
d4163395 | 2519 | arglist = chainon (arglist, parm); |
e4b2c26c | 2520 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2521 | } |
e4b2c26c | 2522 | |
465e4a95 | 2523 | /* Add the hidden string length parameters, unless the procedure |
2524 | is bind(C). */ | |
2525 | if (!sym->attr.is_bind_c) | |
2526 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2527 | |
ebe27ea2 | 2528 | gcc_assert (hidden_typelist == NULL_TREE |
2529 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2530 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2531 | } |
e4b2c26c | 2532 | |
1b716045 | 2533 | /* Do the setup necessary before generating the body of a function. */ |
2534 | ||
2535 | static void | |
2536 | trans_function_start (gfc_symbol * sym) | |
2537 | { | |
2538 | tree fndecl; | |
2539 | ||
2540 | fndecl = sym->backend_decl; | |
2541 | ||
f888a3fb | 2542 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2543 | current_function_decl = fndecl; |
2544 | ||
f888a3fb | 2545 | /* Let the world know what we're about to do. */ |
1b716045 | 2546 | announce_function (fndecl); |
2547 | ||
16a40513 | 2548 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2549 | { |
f888a3fb | 2550 | /* Create RTL for function declaration. */ |
1b716045 | 2551 | rest_of_decl_compilation (fndecl, 1, 0); |
2552 | } | |
2553 | ||
f888a3fb | 2554 | /* Create RTL for function definition. */ |
1b716045 | 2555 | make_decl_rtl (fndecl); |
2556 | ||
00cf115c | 2557 | allocate_struct_function (fndecl, false); |
1b716045 | 2558 | |
f888a3fb | 2559 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2560 | pushlevel (); |
1b716045 | 2561 | } |
2562 | ||
2563 | /* Create thunks for alternate entry points. */ | |
2564 | ||
2565 | static void | |
d896f9b3 | 2566 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2567 | { |
2568 | gfc_formal_arglist *formal; | |
2569 | gfc_formal_arglist *thunk_formal; | |
2570 | gfc_entry_list *el; | |
2571 | gfc_symbol *thunk_sym; | |
2572 | stmtblock_t body; | |
2573 | tree thunk_fndecl; | |
1b716045 | 2574 | tree tmp; |
b31f705b | 2575 | locus old_loc; |
1b716045 | 2576 | |
2577 | /* This should always be a toplevel function. */ | |
22d678e8 | 2578 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2579 | |
4671339c | 2580 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2581 | for (el = ns->entries; el; el = el->next) |
2582 | { | |
f1f41a6c | 2583 | vec<tree, va_gc> *args = NULL; |
2584 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2585 | |
1b716045 | 2586 | thunk_sym = el->sym; |
a90fe829 | 2587 | |
d896f9b3 | 2588 | build_function_decl (thunk_sym, global); |
1b716045 | 2589 | create_function_arglist (thunk_sym); |
2590 | ||
2591 | trans_function_start (thunk_sym); | |
2592 | ||
2593 | thunk_fndecl = thunk_sym->backend_decl; | |
2594 | ||
e5004242 | 2595 | gfc_init_block (&body); |
1b716045 | 2596 | |
f888a3fb | 2597 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2598 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2599 | vec_safe_push (args, tmp); |
1b716045 | 2600 | |
c6871095 | 2601 | if (thunk_sym->attr.function) |
2602 | { | |
2603 | if (gfc_return_by_reference (ns->proc_name)) | |
2604 | { | |
2605 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2606 | vec_safe_push (args, ref); |
c6871095 | 2607 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2608 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2609 | } |
2610 | } | |
2611 | ||
6777213b | 2612 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2613 | formal = formal->next) | |
1b716045 | 2614 | { |
c6871095 | 2615 | /* Ignore alternate returns. */ |
2616 | if (formal->sym == NULL) | |
2617 | continue; | |
2618 | ||
1b716045 | 2619 | /* We don't have a clever way of identifying arguments, so resort to |
2620 | a brute-force search. */ | |
6777213b | 2621 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2622 | thunk_formal; |
2623 | thunk_formal = thunk_formal->next) | |
2624 | { | |
2625 | if (thunk_formal->sym == formal->sym) | |
2626 | break; | |
2627 | } | |
2628 | ||
2629 | if (thunk_formal) | |
2630 | { | |
2631 | /* Pass the argument. */ | |
d95efb59 | 2632 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2633 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2634 | if (formal->sym->ts.type == BT_CHARACTER) |
2635 | { | |
eeebe20b | 2636 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2637 | vec_safe_push (string_args, tmp); |
1b716045 | 2638 | } |
2639 | } | |
2640 | else | |
2641 | { | |
2642 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2643 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2644 | if (formal->sym->ts.type == BT_CHARACTER) |
2645 | { | |
7d3075f6 | 2646 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2647 | vec_safe_push (string_args, tmp); |
1b716045 | 2648 | } |
2649 | } | |
2650 | } | |
2651 | ||
2652 | /* Call the master function. */ | |
f1f41a6c | 2653 | vec_safe_splice (args, string_args); |
1b716045 | 2654 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2655 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2656 | if (ns->proc_name->attr.mixed_entry_master) |
2657 | { | |
2658 | tree union_decl, field; | |
2659 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2660 | ||
e60a6f7b | 2661 | union_decl = build_decl (input_location, |
2662 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2663 | TREE_TYPE (master_type)); |
2664 | DECL_ARTIFICIAL (union_decl) = 1; | |
2665 | DECL_EXTERNAL (union_decl) = 0; | |
2666 | TREE_PUBLIC (union_decl) = 0; | |
2667 | TREE_USED (union_decl) = 1; | |
2668 | layout_decl (union_decl, 0); | |
2669 | pushdecl (union_decl); | |
2670 | ||
2671 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2672 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2673 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2674 | gfc_add_expr_to_block (&body, tmp); |
2675 | ||
2676 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2677 | field; field = DECL_CHAIN (field)) |
c6871095 | 2678 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2679 | thunk_sym->result->name) == 0) | |
2680 | break; | |
2681 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2682 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2683 | TREE_TYPE (field), union_decl, field, | |
2684 | NULL_TREE); | |
a90fe829 | 2685 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2686 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2687 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2688 | tmp = build1_v (RETURN_EXPR, tmp); |
2689 | } | |
2690 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2691 | != void_type_node) | |
2692 | { | |
fd779e1d | 2693 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2694 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2695 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2696 | tmp = build1_v (RETURN_EXPR, tmp); |
2697 | } | |
1b716045 | 2698 | gfc_add_expr_to_block (&body, tmp); |
2699 | ||
2700 | /* Finish off this function and send it for code generation. */ | |
2701 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2702 | tmp = getdecls (); |
cde2be84 | 2703 | poplevel (1, 1); |
1b716045 | 2704 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2705 | DECL_SAVED_TREE (thunk_fndecl) |
2706 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2707 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2708 | |
2709 | /* Output the GENERIC tree. */ | |
2710 | dump_function (TDI_original, thunk_fndecl); | |
2711 | ||
2712 | /* Store the end of the function, so that we get good line number | |
2713 | info for the epilogue. */ | |
2714 | cfun->function_end_locus = input_location; | |
2715 | ||
2716 | /* We're leaving the context of this function, so zap cfun. | |
2717 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2718 | tree_rest_of_compilation. */ | |
87d4aa85 | 2719 | set_cfun (NULL); |
1b716045 | 2720 | |
2721 | current_function_decl = NULL_TREE; | |
2722 | ||
35ee1c66 | 2723 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2724 | |
2725 | /* We share the symbols in the formal argument list with other entry | |
2726 | points and the master function. Clear them so that they are | |
2727 | recreated for each function. */ | |
6777213b | 2728 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2729 | formal = formal->next) | |
c6871095 | 2730 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2731 | { | |
2732 | formal->sym->backend_decl = NULL_TREE; | |
2733 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2734 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2735 | } |
2736 | ||
2737 | if (thunk_sym->attr.function) | |
1b716045 | 2738 | { |
c6871095 | 2739 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2740 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2741 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2742 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2743 | } |
2744 | } | |
b31f705b | 2745 | |
4671339c | 2746 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2747 | } |
2748 | ||
2749 | ||
2750 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2751 | points. If global is true, generate the function in the global binding |
2752 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2753 | |
2754 | void | |
d896f9b3 | 2755 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2756 | { |
2757 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2758 | build_function_decl (ns->proc_name, global); |
1b716045 | 2759 | |
f888a3fb | 2760 | /* Compile the entry thunks. */ |
1b716045 | 2761 | if (ns->entries) |
d896f9b3 | 2762 | build_entry_thunks (ns, global); |
1b716045 | 2763 | |
2764 | /* Now create the read argument list. */ | |
2765 | create_function_arglist (ns->proc_name); | |
15b28553 | 2766 | |
2767 | if (ns->omp_declare_simd) | |
2768 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2769 | } |
2770 | ||
c750cc52 | 2771 | /* Return the decl used to hold the function return value. If |
3350e716 | 2772 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2773 | |
2774 | tree | |
c750cc52 | 2775 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2776 | { |
c750cc52 | 2777 | tree decl; |
2778 | tree length; | |
2779 | tree this_fake_result_decl; | |
2780 | tree this_function_decl; | |
4ee9c684 | 2781 | |
2782 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2783 | ||
c750cc52 | 2784 | if (parent_flag) |
2785 | { | |
2786 | this_fake_result_decl = parent_fake_result_decl; | |
2787 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2788 | } | |
2789 | else | |
2790 | { | |
2791 | this_fake_result_decl = current_fake_result_decl; | |
2792 | this_function_decl = current_function_decl; | |
2793 | } | |
2794 | ||
c6871095 | 2795 | if (sym |
c750cc52 | 2796 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2797 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2798 | && sym != sym->ns->proc_name) |
2799 | { | |
d4163395 | 2800 | tree t = NULL, var; |
c750cc52 | 2801 | if (this_fake_result_decl != NULL) |
2802 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2803 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2804 | break; | |
2805 | if (t) | |
2806 | return TREE_VALUE (t); | |
c750cc52 | 2807 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2808 | ||
2809 | if (parent_flag) | |
2810 | this_fake_result_decl = parent_fake_result_decl; | |
2811 | else | |
2812 | this_fake_result_decl = current_fake_result_decl; | |
2813 | ||
d4163395 | 2814 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2815 | { |
2816 | tree field; | |
2817 | ||
2818 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2819 | field; field = DECL_CHAIN (field)) |
c6871095 | 2820 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2821 | sym->name) == 0) | |
2822 | break; | |
2823 | ||
2824 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2825 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2826 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2827 | } |
c750cc52 | 2828 | |
2829 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2830 | if (parent_flag) | |
2831 | gfc_add_decl_to_parent_function (var); | |
2832 | else | |
2833 | gfc_add_decl_to_function (var); | |
2834 | ||
d4163395 | 2835 | SET_DECL_VALUE_EXPR (var, decl); |
2836 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2837 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2838 | |
2839 | TREE_CHAIN (this_fake_result_decl) | |
2840 | = tree_cons (get_identifier (sym->name), var, | |
2841 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2842 | return var; |
c6871095 | 2843 | } |
2844 | ||
c750cc52 | 2845 | if (this_fake_result_decl != NULL_TREE) |
2846 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2847 | |
2848 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2849 | sym is NULL. */ | |
2850 | if (!sym) | |
2851 | return NULL_TREE; | |
2852 | ||
d4163395 | 2853 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2854 | { |
eeebe20b | 2855 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2856 | length = gfc_create_string_length (sym); |
2857 | else | |
eeebe20b | 2858 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2859 | if (TREE_CODE (length) == VAR_DECL |
2860 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2861 | gfc_add_decl_to_function (length); |
4ee9c684 | 2862 | } |
2863 | ||
2864 | if (gfc_return_by_reference (sym)) | |
2865 | { | |
c750cc52 | 2866 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2867 | |
c750cc52 | 2868 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2869 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2870 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2871 | |
2872 | TREE_USED (decl) = 1; | |
2873 | if (sym->as) | |
2874 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2875 | } | |
2876 | else | |
2877 | { | |
2878 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2879 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2880 | |
3350e716 | 2881 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2882 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2883 | VAR_DECL, get_identifier (name), |
3350e716 | 2884 | gfc_sym_type (sym)); |
2885 | else | |
1e71b314 | 2886 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2887 | VAR_DECL, get_identifier (name), |
3350e716 | 2888 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2889 | DECL_ARTIFICIAL (decl) = 1; |
2890 | DECL_EXTERNAL (decl) = 0; | |
2891 | TREE_PUBLIC (decl) = 0; | |
2892 | TREE_USED (decl) = 1; | |
764f1175 | 2893 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2894 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2895 | |
2896 | layout_decl (decl, 0); | |
cf5f881f | 2897 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 2898 | |
c750cc52 | 2899 | if (parent_flag) |
2900 | gfc_add_decl_to_parent_function (decl); | |
2901 | else | |
2902 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2903 | } |
2904 | ||
c750cc52 | 2905 | if (parent_flag) |
2906 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2907 | else | |
2908 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2909 | |
2910 | return decl; | |
2911 | } | |
2912 | ||
2913 | ||
2914 | /* Builds a function decl. The remaining parameters are the types of the | |
2915 | function arguments. Negative nargs indicates a varargs function. */ | |
2916 | ||
8ce86007 | 2917 | static tree |
2918 | build_library_function_decl_1 (tree name, const char *spec, | |
2919 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2920 | { |
f1f41a6c | 2921 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2922 | tree fntype; |
2923 | tree fndecl; | |
4ee9c684 | 2924 | int n; |
2925 | ||
2926 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2927 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2928 | |
4ee9c684 | 2929 | /* Create a list of the argument types. */ |
f1f41a6c | 2930 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2931 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2932 | { |
5edc3af9 | 2933 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2934 | arglist->quick_push (argtype); |
4ee9c684 | 2935 | } |
2936 | ||
2937 | /* Build the function type and decl. */ | |
5edc3af9 | 2938 | if (nargs >= 0) |
2939 | fntype = build_function_type_vec (rettype, arglist); | |
2940 | else | |
2941 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2942 | if (spec) |
2943 | { | |
2944 | tree attr_args = build_tree_list (NULL_TREE, | |
2945 | build_string (strlen (spec), spec)); | |
2946 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2947 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2948 | fntype = build_type_attribute_variant (fntype, attrs); | |
2949 | } | |
e60a6f7b | 2950 | fndecl = build_decl (input_location, |
2951 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2952 | |
2953 | /* Mark this decl as external. */ | |
2954 | DECL_EXTERNAL (fndecl) = 1; | |
2955 | TREE_PUBLIC (fndecl) = 1; | |
2956 | ||
4ee9c684 | 2957 | pushdecl (fndecl); |
2958 | ||
b2c4af5e | 2959 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2960 | |
2961 | return fndecl; | |
2962 | } | |
2963 | ||
8ce86007 | 2964 | /* Builds a function decl. The remaining parameters are the types of the |
2965 | function arguments. Negative nargs indicates a varargs function. */ | |
2966 | ||
2967 | tree | |
2968 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2969 | { | |
2970 | tree ret; | |
2971 | va_list args; | |
2972 | va_start (args, nargs); | |
2973 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2974 | va_end (args); | |
2975 | return ret; | |
2976 | } | |
2977 | ||
2978 | /* Builds a function decl. The remaining parameters are the types of the | |
2979 | function arguments. Negative nargs indicates a varargs function. | |
2980 | The SPEC parameter specifies the function argument and return type | |
2981 | specification according to the fnspec function type attribute. */ | |
2982 | ||
4bf69bc3 | 2983 | tree |
8ce86007 | 2984 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2985 | tree rettype, int nargs, ...) | |
2986 | { | |
2987 | tree ret; | |
2988 | va_list args; | |
2989 | va_start (args, nargs); | |
2990 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2991 | va_end (args); | |
2992 | return ret; | |
2993 | } | |
2994 | ||
4ee9c684 | 2995 | static void |
2996 | gfc_build_intrinsic_function_decls (void) | |
2997 | { | |
90ba9145 | 2998 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 2999 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3000 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3001 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3002 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3003 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3004 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3005 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3006 | |
4ee9c684 | 3007 | /* String functions. */ |
241ecdc7 | 3008 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3009 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3010 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3011 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3012 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3013 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3014 | |
3015 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3016 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3017 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3018 | gfc_charlen_type_node, pchar1_type_node, | |
3019 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3020 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3021 | |
3022 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3023 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3024 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3025 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3026 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3027 | |
3028 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3029 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3030 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3031 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3032 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3033 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3034 | |
3035 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3036 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3037 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3038 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3039 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3040 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3041 | |
3042 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3043 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3044 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3045 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3046 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3047 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3048 | |
3049 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3050 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3051 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3052 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3053 | pchar1_type_node); | |
3054 | ||
3055 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3056 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3057 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3058 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3059 | integer_type_node); | |
3060 | ||
3061 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3062 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3063 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3064 | pchar1_type_node); | |
bc351485 | 3065 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3066 | |
3067 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3068 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3069 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3070 | pchar1_type_node); | |
bc351485 | 3071 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3072 | |
3073 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3074 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3075 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3076 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3077 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3078 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3079 | |
3080 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3081 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3082 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3083 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3084 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3085 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3086 | |
3087 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3088 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3089 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3090 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3091 | pchar4_type_node); | |
bc351485 | 3092 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3093 | |
3094 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3095 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3096 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3097 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3098 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3099 | |
3100 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3101 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3102 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3103 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3104 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3105 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3106 | |
3107 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3108 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3109 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3110 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3111 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3112 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3113 | |
3114 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3115 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3116 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3117 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3118 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3119 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3120 | |
3121 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3122 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3123 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3124 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3125 | pchar4_type_node); | |
3126 | ||
3127 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3128 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3129 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3130 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3131 | integer_type_node); | |
3132 | ||
3133 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3134 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3135 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3136 | pchar4_type_node); | |
bc351485 | 3137 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3138 | |
3139 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3140 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3141 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3142 | pchar4_type_node); | |
bc351485 | 3143 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3144 | |
3145 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3146 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3147 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3148 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3149 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3150 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3151 | |
3152 | ||
3153 | /* Conversion between character kinds. */ | |
3154 | ||
241ecdc7 | 3155 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3156 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3157 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3158 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3159 | |
241ecdc7 | 3160 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3161 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3162 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3163 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3164 | |
40b806de | 3165 | /* Misc. functions. */ |
5fcc6ec2 | 3166 | |
241ecdc7 | 3167 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3168 | get_identifier (PREFIX("ttynam")), ".W", | |
3169 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3170 | integer_type_node); | |
3171 | ||
3172 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3173 | get_identifier (PREFIX("fdate")), ".W", | |
3174 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3175 | ||
3176 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3177 | get_identifier (PREFIX("ctime")), ".W", | |
3178 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3179 | gfc_int8_type_node); | |
3180 | ||
3181 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3182 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3183 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3184 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3185 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3186 | |
3187 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3188 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3189 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3190 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3191 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3192 | |
3193 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3194 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3195 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3196 | pvoid_type_node); | |
537824d1 | 3197 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3198 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3199 | |
72ce5390 | 3200 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3201 | get_identifier (PREFIX("system_clock_4")), | |
3202 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3203 | gfc_pint4_type_node); | |
3204 | ||
3205 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3206 | get_identifier (PREFIX("system_clock_8")), | |
3207 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3208 | gfc_pint8_type_node); | |
3209 | ||
4ee9c684 | 3210 | /* Power functions. */ |
76834664 | 3211 | { |
920e54ef | 3212 | tree ctype, rtype, itype, jtype; |
3213 | int rkind, ikind, jkind; | |
3214 | #define NIKINDS 3 | |
3215 | #define NRKINDS 4 | |
3216 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3217 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3218 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3219 | ||
3220 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3221 | { |
920e54ef | 3222 | itype = gfc_get_int_type (ikinds[ikind]); |
3223 | ||
3224 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3225 | { | |
3226 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3227 | if (itype && jtype) | |
3228 | { | |
3229 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3230 | ikinds[jkind]); | |
3231 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3232 | gfc_build_library_function_decl (get_identifier (name), | |
3233 | jtype, 2, jtype, itype); | |
2177d98b | 3234 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3235 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3236 | } |
3237 | } | |
3238 | ||
3239 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3240 | { |
920e54ef | 3241 | rtype = gfc_get_real_type (rkinds[rkind]); |
3242 | if (rtype && itype) | |
3243 | { | |
3244 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3245 | ikinds[ikind]); | |
3246 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3247 | gfc_build_library_function_decl (get_identifier (name), | |
3248 | rtype, 2, rtype, itype); | |
2177d98b | 3249 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3250 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3251 | } |
3252 | ||
3253 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3254 | if (ctype && itype) | |
3255 | { | |
3256 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3257 | ikinds[ikind]); | |
3258 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3259 | gfc_build_library_function_decl (get_identifier (name), | |
3260 | ctype, 2,ctype, itype); | |
2177d98b | 3261 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3262 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3263 | } |
76834664 | 3264 | } |
3265 | } | |
920e54ef | 3266 | #undef NIKINDS |
3267 | #undef NRKINDS | |
76834664 | 3268 | } |
3269 | ||
241ecdc7 | 3270 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3271 | get_identifier (PREFIX("ishftc4")), | |
3272 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3273 | gfc_int4_type_node); | |
bc351485 | 3274 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3275 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3276 | |
241ecdc7 | 3277 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3278 | get_identifier (PREFIX("ishftc8")), | |
3279 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3280 | gfc_int4_type_node); | |
bc351485 | 3281 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3282 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3283 | |
920e54ef | 3284 | if (gfc_int16_type_node) |
bc351485 | 3285 | { |
3286 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3287 | get_identifier (PREFIX("ishftc16")), |
3288 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3289 | gfc_int4_type_node); | |
bc351485 | 3290 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3291 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3292 | } | |
920e54ef | 3293 | |
4e8e57b0 | 3294 | /* BLAS functions. */ |
3295 | { | |
36c921b9 | 3296 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3297 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3298 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3299 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3300 | tree pz = build_pointer_type | |
3301 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3302 | ||
3303 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3304 | (get_identifier | |
829d7a08 | 3305 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3306 | void_type_node, 15, pchar_type_node, |
3307 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3308 | ps, pint, ps, ps, pint, integer_type_node, |
3309 | integer_type_node); | |
4e8e57b0 | 3310 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3311 | (get_identifier | |
829d7a08 | 3312 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3313 | void_type_node, 15, pchar_type_node, |
3314 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3315 | pd, pint, pd, pd, pint, integer_type_node, |
3316 | integer_type_node); | |
4e8e57b0 | 3317 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3318 | (get_identifier | |
829d7a08 | 3319 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3320 | void_type_node, 15, pchar_type_node, |
3321 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3322 | pc, pint, pc, pc, pint, integer_type_node, |
3323 | integer_type_node); | |
4e8e57b0 | 3324 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3325 | (get_identifier | |
829d7a08 | 3326 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3327 | void_type_node, 15, pchar_type_node, |
3328 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3329 | pz, pint, pz, pz, pint, integer_type_node, |
3330 | integer_type_node); | |
4e8e57b0 | 3331 | } |
3332 | ||
4ee9c684 | 3333 | /* Other functions. */ |
241ecdc7 | 3334 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3335 | get_identifier (PREFIX("size0")), ".R", | |
3336 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3337 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3338 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3339 | |
3340 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3341 | get_identifier (PREFIX("size1")), ".R", | |
3342 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3343 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3344 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3345 | |
3346 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3347 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3348 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3349 | } |
3350 | ||
3351 | ||
3352 | /* Make prototypes for runtime library functions. */ | |
3353 | ||
3354 | void | |
3355 | gfc_build_builtin_function_decls (void) | |
3356 | { | |
90ba9145 | 3357 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3358 | |
241ecdc7 | 3359 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3360 | get_identifier (PREFIX("stop_numeric")), | |
3361 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3362 | /* STOP doesn't return. */ |
98ccec97 | 3363 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3364 | ||
dff2ea5f | 3365 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3366 | get_identifier (PREFIX("stop_numeric_f08")), | |
3367 | void_type_node, 1, gfc_int4_type_node); | |
3368 | /* STOP doesn't return. */ | |
3369 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3370 | ||
241ecdc7 | 3371 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3372 | get_identifier (PREFIX("stop_string")), ".R.", | |
3373 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3374 | /* STOP doesn't return. */ |
241ecdc7 | 3375 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3376 | |
241ecdc7 | 3377 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3378 | get_identifier (PREFIX("error_stop_numeric")), | |
3379 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3380 | /* ERROR STOP doesn't return. */ |
3381 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3382 | ||
241ecdc7 | 3383 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3384 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3385 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3386 | /* ERROR STOP doesn't return. */ |
3387 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3388 | ||
241ecdc7 | 3389 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3390 | get_identifier (PREFIX("pause_numeric")), | |
3391 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3392 | |
241ecdc7 | 3393 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3394 | get_identifier (PREFIX("pause_string")), ".R.", | |
3395 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3396 | |
241ecdc7 | 3397 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3398 | get_identifier (PREFIX("runtime_error")), ".R", | |
3399 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3400 | /* The runtime_error function does not return. */ |
3401 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3402 | |
241ecdc7 | 3403 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3404 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3405 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3406 | /* The runtime_error_at function does not return. */ |
3407 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3408 | |
241ecdc7 | 3409 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3410 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3411 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3412 | ||
3413 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3414 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3415 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3416 | pchar_type_node); | |
3417 | ||
3418 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3419 | get_identifier (PREFIX("os_error")), ".R", | |
3420 | void_type_node, 1, pchar_type_node); | |
9915365e | 3421 | /* The runtime_error function does not return. */ |
3422 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3423 | ||
241ecdc7 | 3424 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3425 | get_identifier (PREFIX("set_args")), | |
3426 | void_type_node, 2, integer_type_node, | |
3427 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3428 | |
241ecdc7 | 3429 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3430 | get_identifier (PREFIX("set_fpe")), | |
3431 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3432 | |
d566c3e0 | 3433 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3434 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3435 | void_type_node, 1, pvoid_type_node); | |
3436 | ||
3437 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3438 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3439 | void_type_node, 1, pvoid_type_node); | |
3440 | ||
56c7c2d7 | 3441 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3442 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3443 | get_identifier (PREFIX("set_options")), "..R", | |
3444 | void_type_node, 2, integer_type_node, | |
3445 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3446 | |
241ecdc7 | 3447 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3448 | get_identifier (PREFIX("set_convert")), | |
3449 | void_type_node, 1, integer_type_node); | |
15774a8b | 3450 | |
241ecdc7 | 3451 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3452 | get_identifier (PREFIX("set_record_marker")), | |
3453 | void_type_node, 1, integer_type_node); | |
f23886ab | 3454 | |
241ecdc7 | 3455 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3456 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3457 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3458 | |
8ce86007 | 3459 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3460 | get_identifier (PREFIX("internal_pack")), ".r", |
3461 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3462 | |
8ce86007 | 3463 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3464 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3465 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3466 | ||
3467 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3468 | get_identifier (PREFIX("associated")), ".RR", | |
3469 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3470 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3471 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3472 | |
70b5944a | 3473 | /* Coarray library calls. */ |
4fe73152 | 3474 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3475 | { |
3476 | tree pint_type, pppchar_type; | |
3477 | ||
3478 | pint_type = build_pointer_type (integer_type_node); | |
3479 | pppchar_type | |
3480 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3481 | ||
3482 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3483 | get_identifier (PREFIX("caf_init")), void_type_node, | |
53687b4e | 3484 | 2, pint_type, pppchar_type); |
70b5944a | 3485 | |
3486 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3487 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3488 | ||
d44f2f7c | 3489 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
3490 | get_identifier (PREFIX("caf_this_image")), integer_type_node, | |
3491 | 1, integer_type_node); | |
3492 | ||
3493 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
3494 | get_identifier (PREFIX("caf_num_images")), integer_type_node, | |
da82fa7c | 3495 | 2, integer_type_node, integer_type_node); |
d44f2f7c | 3496 | |
a961ca30 | 3497 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3498 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3499 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3500 | pchar_type_node, integer_type_node); |
3501 | ||
3502 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3503 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3504 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3505 | |
5f4a118e | 3506 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
9f1c76f9 | 3507 | get_identifier (PREFIX("caf_get")), ".R.RRRW", void_type_node, 9, |
5f4a118e | 3508 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3509 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3510 | boolean_type_node); | |
5f4a118e | 3511 | |
3512 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
9f1c76f9 | 3513 | get_identifier (PREFIX("caf_send")), ".R.RRRR", void_type_node, 9, |
5f4a118e | 3514 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3515 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3516 | boolean_type_node); | |
5f4a118e | 3517 | |
3518 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3519 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRR", void_type_node, | |
9f1c76f9 | 3520 | 13, pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
5f4a118e | 3521 | pvoid_type_node, pvoid_type_node, size_type_node, integer_type_node, |
9f1c76f9 | 3522 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3523 | boolean_type_node); | |
5f4a118e | 3524 | |
70b5944a | 3525 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3526 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3527 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3528 | |
71cf3ae6 | 3529 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3530 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3531 | 3, pint_type, pchar_type_node, integer_type_node); | |
3532 | ||
70b5944a | 3533 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3534 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3535 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3536 | pchar_type_node, integer_type_node); |
70b5944a | 3537 | |
3538 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3539 | get_identifier (PREFIX("caf_error_stop")), | |
3540 | void_type_node, 1, gfc_int4_type_node); | |
3541 | /* CAF's ERROR STOP doesn't return. */ | |
3542 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3543 | ||
3544 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3545 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3546 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3547 | /* CAF's ERROR STOP doesn't return. */ | |
3548 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3549 | |
97b9ac34 | 3550 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3551 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3552 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3553 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3554 | ||
3555 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3556 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3557 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3558 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3559 | ||
3560 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3561 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3562 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
3563 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3564 | integer_type_node, integer_type_node); | |
3565 | ||
3566 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3567 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3568 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3569 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3570 | integer_type_node, integer_type_node); | |
3571 | ||
498b946e | 3572 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3573 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3574 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3575 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3576 | ||
3577 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3578 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3579 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
498b946e | 3580 | pint_type, pchar_type_node, integer_type_node); |
3581 | ||
bd47f0bc | 3582 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3583 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3584 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3585 | pint_type, pchar_type_node, integer_type_node); | |
3586 | ||
3587 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3588 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3589 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3590 | pint_type, pchar_type_node, integer_type_node); | |
3591 | ||
3592 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3593 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3594 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3595 | pint_type, pint_type); | |
3596 | ||
52306a18 | 3597 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3598 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3599 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3600 | pint_type, pchar_type_node, integer_type_node); | |
3601 | ||
79ed4a8e | 3602 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3603 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3604 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3605 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3606 | ||
3607 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3608 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3609 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3610 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3611 | ||
e39efcef | 3612 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3613 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3614 | void_type_node, 8, pvoid_type_node, | |
3615 | build_pointer_type (build_varargs_function_type_list (void_type_node, | |
3616 | NULL_TREE)), | |
3617 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3618 | integer_type_node, integer_type_node); | |
3619 | ||
79ed4a8e | 3620 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3621 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3622 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3623 | pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3624 | } |
3625 | ||
4ee9c684 | 3626 | gfc_build_intrinsic_function_decls (); |
3627 | gfc_build_intrinsic_lib_fndecls (); | |
3628 | gfc_build_io_library_fndecls (); | |
3629 | } | |
3630 | ||
3631 | ||
231e961a | 3632 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3633 | |
c5faa799 | 3634 | static void |
3635 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3636 | gfc_wrapped_block *block) | |
4ee9c684 | 3637 | { |
c5faa799 | 3638 | stmtblock_t init; |
4ee9c684 | 3639 | |
b9c7fce7 | 3640 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3641 | |
c5faa799 | 3642 | gfc_start_block (&init); |
4ee9c684 | 3643 | |
3644 | /* Evaluate the string length expression. */ | |
c5faa799 | 3645 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3646 | |
c5faa799 | 3647 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3648 | |
c5faa799 | 3649 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3650 | } |
3651 | ||
3652 | ||
3653 | /* Allocate and cleanup an automatic character variable. */ | |
3654 | ||
c5faa799 | 3655 | static void |
3656 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3657 | { |
c5faa799 | 3658 | stmtblock_t init; |
4ee9c684 | 3659 | tree decl; |
4ee9c684 | 3660 | tree tmp; |
3661 | ||
22d678e8 | 3662 | gcc_assert (sym->backend_decl); |
eeebe20b | 3663 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3664 | |
3714c8b6 | 3665 | gfc_init_block (&init); |
4ee9c684 | 3666 | |
3667 | /* Evaluate the string length expression. */ | |
c5faa799 | 3668 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3669 | |
c5faa799 | 3670 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3671 | |
4ee9c684 | 3672 | decl = sym->backend_decl; |
3673 | ||
afcf285e | 3674 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3675 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3676 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3677 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3678 | |
c5faa799 | 3679 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3680 | } |
3681 | ||
c8f1568f | 3682 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3683 | ||
c5faa799 | 3684 | static void |
3685 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3686 | { |
c5faa799 | 3687 | stmtblock_t init; |
c8f1568f | 3688 | |
3689 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3690 | gfc_start_block (&init); |
c8f1568f | 3691 | |
3692 | /* Set the initial value to length. See the comments in | |
3693 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3694 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3695 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3696 | |
c5faa799 | 3697 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3698 | } |
3699 | ||
d4163395 | 3700 | static void |
3701 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3702 | { | |
3703 | tree t = *tp, var, val; | |
3704 | ||
3705 | if (t == NULL || t == error_mark_node) | |
3706 | return; | |
3707 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3708 | return; | |
3709 | ||
3710 | if (TREE_CODE (t) == SAVE_EXPR) | |
3711 | { | |
3712 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3713 | { | |
3714 | *tp = TREE_OPERAND (t, 0); | |
3715 | return; | |
3716 | } | |
3717 | val = TREE_OPERAND (t, 0); | |
3718 | } | |
3719 | else | |
3720 | val = t; | |
3721 | ||
3722 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3723 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3724 | gfc_add_modify (body, var, val); |
d4163395 | 3725 | if (TREE_CODE (t) == SAVE_EXPR) |
3726 | TREE_OPERAND (t, 0) = var; | |
3727 | *tp = var; | |
3728 | } | |
3729 | ||
3730 | static void | |
3731 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3732 | { | |
3733 | tree t; | |
3734 | ||
3735 | if (type == NULL || type == error_mark_node) | |
3736 | return; | |
3737 | ||
3738 | type = TYPE_MAIN_VARIANT (type); | |
3739 | ||
3740 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3741 | { | |
3742 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3743 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3744 | ||
3745 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3746 | { | |
3747 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3748 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3749 | } | |
3750 | } | |
3751 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3752 | { | |
3753 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3754 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3755 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3756 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3757 | ||
3758 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3759 | { | |
3760 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3761 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3762 | } | |
3763 | } | |
3764 | } | |
3765 | ||
3766 | /* Make sure all type sizes and array domains are either constant, | |
3767 | or variable or parameter decls. This is a simplified variant | |
3768 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3769 | variables in the expressions have been gimplified yet. | |
3770 | As type sizes and domains for various variable length arrays | |
3771 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3772 | time, without this routine gimplify_type_sizes in the middle-end | |
3773 | could result in the type sizes being gimplified earlier than where | |
3774 | those variables are initialized. */ | |
3775 | ||
3776 | void | |
3777 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3778 | { | |
3779 | tree type = TREE_TYPE (sym->backend_decl); | |
3780 | ||
3781 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3782 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3783 | { | |
3784 | if (! current_fake_result_decl) | |
3785 | return; | |
3786 | ||
3787 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3788 | } | |
3789 | ||
3790 | while (POINTER_TYPE_P (type)) | |
3791 | type = TREE_TYPE (type); | |
3792 | ||
3793 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3794 | { | |
3795 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3796 | ||
3797 | while (POINTER_TYPE_P (etype)) | |
3798 | etype = TREE_TYPE (etype); | |
3799 | ||
3800 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3801 | } | |
3802 | ||
3803 | gfc_trans_vla_type_sizes_1 (type, body); | |
3804 | } | |
3805 | ||
4ee9c684 | 3806 | |
f0d4969f | 3807 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3808 | and using trans_assignment to do the work. Set dealloc to false |
3809 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3810 | void |
3811 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3812 | { |
f0d4969f | 3813 | gfc_expr *e; |
87114d2e | 3814 | tree tmp; |
3815 | tree present; | |
3816 | ||
c5faa799 | 3817 | gcc_assert (block); |
3818 | ||
f0d4969f | 3819 | gcc_assert (!sym->attr.allocatable); |
3820 | gfc_set_sym_referenced (sym); | |
3821 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3822 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3823 | if (sym->attr.dummy && (sym->attr.optional |
3824 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3825 | { |
f0d4969f | 3826 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3827 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3828 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3829 | } |
c5faa799 | 3830 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3831 | gfc_free_expr (e); |
87114d2e | 3832 | } |
3833 | ||
3834 | ||
8714fc76 | 3835 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3836 | them their default initializer, if they do not have allocatable | |
293d72e0 | 3837 | components, they have their allocatable components deallocated. */ |
8714fc76 | 3838 | |
c5faa799 | 3839 | static void |
3840 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3841 | { |
c5faa799 | 3842 | stmtblock_t init; |
f0d4969f | 3843 | gfc_formal_arglist *f; |
8714fc76 | 3844 | tree tmp; |
5907c3ea | 3845 | tree present; |
f0d4969f | 3846 | |
c5faa799 | 3847 | gfc_init_block (&init); |
6777213b | 3848 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3849 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3850 | && !f->sym->attr.pointer |
3851 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3852 | { |
942ba353 | 3853 | tmp = NULL_TREE; |
3854 | ||
3855 | /* Note: Allocatables are excluded as they are already handled | |
3856 | by the caller. */ | |
3857 | if (!f->sym->attr.allocatable | |
3858 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3859 | { |
942ba353 | 3860 | stmtblock_t block; |
3861 | gfc_expr *e; | |
3862 | ||
3863 | gfc_init_block (&block); | |
3864 | f->sym->attr.referenced = 1; | |
3865 | e = gfc_lval_expr_from_sym (f->sym); | |
3866 | gfc_add_finalizer_call (&block, e); | |
3867 | gfc_free_expr (e); | |
3868 | tmp = gfc_finish_block (&block); | |
3869 | } | |
5907c3ea | 3870 | |
942ba353 | 3871 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
3872 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
3873 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
3874 | f->sym->backend_decl, | |
3875 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3876 | |
942ba353 | 3877 | if (tmp != NULL_TREE && (f->sym->attr.optional |
3878 | || f->sym->ns->proc_name->attr.entry_master)) | |
3879 | { | |
3880 | present = gfc_conv_expr_present (f->sym); | |
3881 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3882 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 3883 | } |
942ba353 | 3884 | |
3885 | if (tmp != NULL_TREE) | |
3886 | gfc_add_expr_to_block (&init, tmp); | |
3887 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 3888 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3889 | } |
c56d57d6 | 3890 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3891 | && f->sym->ts.type == BT_CLASS | |
3892 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 3893 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 3894 | { |
942ba353 | 3895 | stmtblock_t block; |
3896 | gfc_expr *e; | |
3897 | ||
3898 | gfc_init_block (&block); | |
3899 | f->sym->attr.referenced = 1; | |
3900 | e = gfc_lval_expr_from_sym (f->sym); | |
3901 | gfc_add_finalizer_call (&block, e); | |
3902 | gfc_free_expr (e); | |
3903 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 3904 | |
3905 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3906 | { | |
3907 | present = gfc_conv_expr_present (f->sym); | |
3908 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3909 | present, tmp, | |
3910 | build_empty_stmt (input_location)); | |
3911 | } | |
3912 | ||
3913 | gfc_add_expr_to_block (&init, tmp); | |
3914 | } | |
f0d4969f | 3915 | |
c5faa799 | 3916 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3917 | } |
3918 | ||
87114d2e | 3919 | |
4ee9c684 | 3920 | /* Generate function entry and exit code, and add it to the function body. |
3921 | This includes: | |
f888a3fb | 3922 | Allocation and initialization of array variables. |
4ee9c684 | 3923 | Allocation of character string variables. |
c8f1568f | 3924 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3925 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3926 | Initialization of ASSOCIATE names. |
0a96a7cc | 3927 | Automatic deallocation. */ |
4ee9c684 | 3928 | |
89ac8ba1 | 3929 | void |
3930 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3931 | { |
3932 | locus loc; | |
3933 | gfc_symbol *sym; | |
d4163395 | 3934 | gfc_formal_arglist *f; |
c5faa799 | 3935 | stmtblock_t tmpblock; |
25dd7350 | 3936 | bool seen_trans_deferred_array = false; |
617125a6 | 3937 | tree tmp = NULL; |
3938 | gfc_expr *e; | |
3939 | gfc_se se; | |
3940 | stmtblock_t init; | |
4ee9c684 | 3941 | |
3942 | /* Deal with implicit return variables. Explicit return variables will | |
3943 | already have been added. */ | |
3944 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3945 | { | |
3946 | if (!current_fake_result_decl) | |
3947 | { | |
c6871095 | 3948 | gfc_entry_list *el = NULL; |
3949 | if (proc_sym->attr.entry_master) | |
3950 | { | |
3951 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3952 | if (el->sym != el->sym->result) | |
3953 | break; | |
3954 | } | |
fa7b6574 | 3955 | /* TODO: move to the appropriate place in resolve.c. */ |
3956 | if (warn_return_type && el == NULL) | |
4166acc7 | 3957 | gfc_warning (OPT_Wreturn_type, |
3958 | "Return value of function %qs at %L not set", | |
fa7b6574 | 3959 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 3960 | } |
c6871095 | 3961 | else if (proc_sym->as) |
4ee9c684 | 3962 | { |
d4163395 | 3963 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3964 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3965 | |
3966 | /* An automatic character length, pointer array result. */ | |
3967 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3968 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3969 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3970 | } |
3971 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3972 | { | |
617125a6 | 3973 | if (proc_sym->ts.deferred) |
3974 | { | |
3975 | tmp = NULL; | |
da2c4122 | 3976 | gfc_save_backend_locus (&loc); |
3977 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3978 | gfc_start_block (&init); |
3979 | /* Zero the string length on entry. */ | |
3980 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3981 | build_int_cst (gfc_charlen_type_node, 0)); | |
3982 | /* Null the pointer. */ | |
3983 | e = gfc_lval_expr_from_sym (proc_sym); | |
3984 | gfc_init_se (&se, NULL); | |
3985 | se.want_pointer = 1; | |
3986 | gfc_conv_expr (&se, e); | |
3987 | gfc_free_expr (e); | |
3988 | tmp = se.expr; | |
3989 | gfc_add_modify (&init, tmp, | |
3990 | fold_convert (TREE_TYPE (se.expr), | |
3991 | null_pointer_node)); | |
da2c4122 | 3992 | gfc_restore_backend_locus (&loc); |
617125a6 | 3993 | |
3994 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 3995 | tmp = proc_sym->ts.u.cl->backend_decl; |
3996 | if (TREE_CODE (tmp) != INDIRECT_REF) | |
3997 | { | |
617125a6 | 3998 | tmp = proc_sym->ts.u.cl->passed_length; |
3999 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4000 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4001 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4002 | gfc_charlen_type_node, tmp, | |
4003 | proc_sym->ts.u.cl->backend_decl); | |
ddcfeaf1 | 4004 | } |
4005 | else | |
4006 | tmp = NULL_TREE; | |
4007 | ||
617125a6 | 4008 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4009 | } | |
4010 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 4011 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4012 | } |
4013 | else | |
829d7a08 | 4014 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4015 | } |
4016 | ||
87114d2e | 4017 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4018 | should be done here so that the offsets and lbounds of arrays | |
4019 | are available. */ | |
da2c4122 | 4020 | gfc_save_backend_locus (&loc); |
4021 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4022 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4023 | gfc_restore_backend_locus (&loc); |
87114d2e | 4024 | |
4ee9c684 | 4025 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4026 | { | |
6b3ceb4e | 4027 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4028 | && (sym->ts.u.derived->attr.alloc_comp | |
4029 | || gfc_is_finalizable (sym->ts.u.derived, | |
4030 | NULL)); | |
8f3f9eab | 4031 | if (sym->assoc) |
3c82e013 | 4032 | continue; |
4033 | ||
a56d63bc | 4034 | if (sym->attr.subref_array_pointer |
4035 | && GFC_DECL_SPAN (sym->backend_decl) | |
4036 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
4037 | { | |
4038 | gfc_init_block (&tmpblock); | |
4039 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
4040 | build_int_cst (gfc_array_index_type, 0)); | |
4041 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4042 | NULL_TREE); | |
4043 | } | |
4044 | ||
85ae3cab | 4045 | if (sym->ts.type == BT_CLASS |
eb106faf | 4046 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4047 | && CLASS_DATA (sym)->attr.allocatable) |
4048 | { | |
4049 | tree vptr; | |
4050 | ||
4051 | if (UNLIMITED_POLY (sym)) | |
4052 | vptr = null_pointer_node; | |
4053 | else | |
4054 | { | |
4055 | gfc_symbol *vsym; | |
4056 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4057 | vptr = gfc_get_symbol_decl (vsym); | |
4058 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4059 | } | |
4060 | ||
4061 | if (CLASS_DATA (sym)->attr.dimension | |
4062 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4063 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4064 | { |
4065 | tmp = gfc_class_data_get (sym->backend_decl); | |
4066 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4067 | } | |
4068 | else | |
4069 | tmp = null_pointer_node; | |
4070 | ||
4071 | DECL_INITIAL (sym->backend_decl) | |
4072 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4073 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4074 | } | |
c6793847 | 4075 | else if (sym->attr.dimension || sym->attr.codimension |
4076 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable)) | |
4ee9c684 | 4077 | { |
c6793847 | 4078 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4079 | symbol_attribute *array_attr; | |
4080 | gfc_array_spec *as; | |
4081 | array_type tmp; | |
4082 | ||
4083 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4084 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4085 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
4086 | tmp = as->type; | |
4087 | if (tmp == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4088 | tmp = AS_EXPLICIT; | |
4089 | switch (tmp) | |
4ee9c684 | 4090 | { |
4091 | case AS_EXPLICIT: | |
4092 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4093 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4094 | /* Allocatable and pointer arrays need to processed |
4095 | explicitly. */ | |
4096 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4097 | || (sym->ts.type == BT_CLASS | |
4098 | && CLASS_DATA (sym)->attr.class_pointer) | |
4099 | || array_attr->allocatable) | |
4ee9c684 | 4100 | { |
4101 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4102 | { |
4103 | gfc_save_backend_locus (&loc); | |
4104 | gfc_set_backend_locus (&sym->declared_at); | |
4105 | gfc_trans_static_array_pointer (sym); | |
4106 | gfc_restore_backend_locus (&loc); | |
4107 | } | |
4ee9c684 | 4108 | else |
25dd7350 | 4109 | { |
4110 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4111 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4112 | } |
4ee9c684 | 4113 | } |
c6793847 | 4114 | else if (sym->attr.codimension |
4115 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4116 | { |
4117 | gfc_init_block (&tmpblock); | |
4118 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4119 | &tmpblock, sym); | |
4120 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4121 | NULL_TREE); | |
4122 | continue; | |
4123 | } | |
197423f5 | 4124 | else |
4ee9c684 | 4125 | { |
da2c4122 | 4126 | gfc_save_backend_locus (&loc); |
4127 | gfc_set_backend_locus (&sym->declared_at); | |
4128 | ||
6b3ceb4e | 4129 | if (alloc_comp_or_fini) |
25dd7350 | 4130 | { |
4131 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4132 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4133 | } |
f0d4969f | 4134 | else if (sym->ts.type == BT_DERIVED |
4135 | && sym->value | |
4136 | && !sym->attr.data | |
4137 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4138 | { |
4139 | gfc_start_block (&tmpblock); | |
4140 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4141 | gfc_add_init_cleanup (block, |
c5faa799 | 4142 | gfc_finish_block (&tmpblock), |
4143 | NULL_TREE); | |
4144 | } | |
25dd7350 | 4145 | |
c5faa799 | 4146 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4147 | sym, block); |
4671339c | 4148 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4149 | } |
4150 | break; | |
4151 | ||
4152 | case AS_ASSUMED_SIZE: | |
4153 | /* Must be a dummy parameter. */ | |
c6793847 | 4154 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4155 | |
4156 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4157 | if (sym->attr.dummy) |
89ac8ba1 | 4158 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4159 | break; |
4ee9c684 | 4160 | |
4161 | case AS_ASSUMED_SHAPE: | |
4162 | /* Must be a dummy parameter. */ | |
22d678e8 | 4163 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4164 | |
89ac8ba1 | 4165 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4166 | break; |
4167 | ||
f00f6dd6 | 4168 | case AS_ASSUMED_RANK: |
4ee9c684 | 4169 | case AS_DEFERRED: |
25dd7350 | 4170 | seen_trans_deferred_array = true; |
89ac8ba1 | 4171 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4172 | break; |
4173 | ||
4174 | default: | |
22d678e8 | 4175 | gcc_unreachable (); |
4ee9c684 | 4176 | } |
6b3ceb4e | 4177 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4178 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4179 | } |
fd23cc08 | 4180 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4181 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4182 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4183 | continue; |
617125a6 | 4184 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4185 | && (sym->attr.allocatable |
4186 | || (sym->ts.type == BT_CLASS | |
4187 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4188 | { |
eb106faf | 4189 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4190 | { |
d0d776fb | 4191 | tree descriptor = NULL_TREE; |
4192 | ||
908e9973 | 4193 | /* Nullify and automatic deallocation of allocatable |
4194 | scalars. */ | |
908e9973 | 4195 | e = gfc_lval_expr_from_sym (sym); |
4196 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 4197 | gfc_add_data_component (e); |
908e9973 | 4198 | |
4199 | gfc_init_se (&se, NULL); | |
fd23cc08 | 4200 | if (sym->ts.type != BT_CLASS |
4201 | || sym->ts.u.derived->attr.dimension | |
4202 | || sym->ts.u.derived->attr.codimension) | |
4203 | { | |
4204 | se.want_pointer = 1; | |
4205 | gfc_conv_expr (&se, e); | |
4206 | } | |
4207 | else if (sym->ts.type == BT_CLASS | |
4208 | && !CLASS_DATA (sym)->attr.dimension | |
4209 | && !CLASS_DATA (sym)->attr.codimension) | |
4210 | { | |
4211 | se.want_pointer = 1; | |
4212 | gfc_conv_expr (&se, e); | |
4213 | } | |
4214 | else | |
4215 | { | |
c6793847 | 4216 | se.descriptor_only = 1; |
fd23cc08 | 4217 | gfc_conv_expr (&se, e); |
d0d776fb | 4218 | descriptor = se.expr; |
fd23cc08 | 4219 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
4220 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
4221 | } | |
908e9973 | 4222 | gfc_free_expr (e); |
4223 | ||
da2c4122 | 4224 | gfc_save_backend_locus (&loc); |
4225 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4226 | gfc_start_block (&init); |
617125a6 | 4227 | |
4228 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4229 | { | |
4230 | /* Nullify when entering the scope. */ | |
883d6776 | 4231 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
4232 | TREE_TYPE (se.expr), se.expr, | |
4233 | fold_convert (TREE_TYPE (se.expr), | |
4234 | null_pointer_node)); | |
4235 | if (sym->attr.optional) | |
4236 | { | |
4237 | tree present = gfc_conv_expr_present (sym); | |
4238 | tmp = build3_loc (input_location, COND_EXPR, | |
4239 | void_type_node, present, tmp, | |
4240 | build_empty_stmt (input_location)); | |
4241 | } | |
4242 | gfc_add_expr_to_block (&init, tmp); | |
617125a6 | 4243 | } |
4244 | ||
883d6776 | 4245 | if ((sym->attr.dummy || sym->attr.result) |
617125a6 | 4246 | && sym->ts.type == BT_CHARACTER |
4247 | && sym->ts.deferred) | |
4248 | { | |
4249 | /* Character length passed by reference. */ | |
4250 | tmp = sym->ts.u.cl->passed_length; | |
4251 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4252 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4253 | ||
4254 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4255 | /* Zero the string length when entering the scope. */ | |
4256 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
4257 | build_int_cst (gfc_charlen_type_node, 0)); | |
4258 | else | |
883d6776 | 4259 | { |
4260 | tree tmp2; | |
4261 | ||
4262 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4263 | gfc_charlen_type_node, | |
4264 | sym->ts.u.cl->backend_decl, tmp); | |
4265 | if (sym->attr.optional) | |
4266 | { | |
4267 | tree present = gfc_conv_expr_present (sym); | |
4268 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4269 | void_type_node, present, tmp2, | |
4270 | build_empty_stmt (input_location)); | |
4271 | } | |
4272 | gfc_add_expr_to_block (&init, tmp2); | |
4273 | } | |
617125a6 | 4274 | |
da2c4122 | 4275 | gfc_restore_backend_locus (&loc); |
4276 | ||
617125a6 | 4277 | /* Pass the final character length back. */ |
4278 | if (sym->attr.intent != INTENT_IN) | |
883d6776 | 4279 | { |
4280 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4281 | gfc_charlen_type_node, tmp, | |
4282 | sym->ts.u.cl->backend_decl); | |
4283 | if (sym->attr.optional) | |
4284 | { | |
4285 | tree present = gfc_conv_expr_present (sym); | |
4286 | tmp = build3_loc (input_location, COND_EXPR, | |
4287 | void_type_node, present, tmp, | |
4288 | build_empty_stmt (input_location)); | |
4289 | } | |
4290 | } | |
617125a6 | 4291 | else |
4292 | tmp = NULL_TREE; | |
4293 | } | |
da2c4122 | 4294 | else |
4295 | gfc_restore_backend_locus (&loc); | |
908e9973 | 4296 | |
4297 | /* Deallocate when leaving the scope. Nullifying is not | |
4298 | needed. */ | |
afb69dbf | 4299 | if (!sym->attr.result && !sym->attr.dummy |
4300 | && !sym->ns->proc_name->attr.is_main_program) | |
d0d776fb | 4301 | { |
4302 | if (sym->ts.type == BT_CLASS | |
4303 | && CLASS_DATA (sym)->attr.codimension) | |
4304 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4305 | NULL_TREE, NULL_TREE, | |
4306 | NULL_TREE, true, NULL, | |
4307 | true); | |
4308 | else | |
c23adf93 | 4309 | { |
4310 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
4311 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, | |
4312 | true, expr, sym->ts); | |
4313 | gfc_free_expr (expr); | |
4314 | } | |
d0d776fb | 4315 | } |
afc44c79 | 4316 | if (sym->ts.type == BT_CLASS) |
4317 | { | |
4318 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4319 | gfc_symbol *vtab; |
afc44c79 | 4320 | tree rhs; |
da2c4122 | 4321 | |
4322 | gfc_save_backend_locus (&loc); | |
4323 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4324 | e = gfc_lval_expr_from_sym (sym); |
4325 | gfc_add_vptr_component (e); | |
4326 | gfc_init_se (&se, NULL); | |
4327 | se.want_pointer = 1; | |
4328 | gfc_conv_expr (&se, e); | |
4329 | gfc_free_expr (e); | |
a90fe829 | 4330 | if (UNLIMITED_POLY (sym)) |
4331 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4332 | else | |
4333 | { | |
4334 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4335 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4336 | gfc_get_symbol_decl (vtab)); | |
4337 | } | |
afc44c79 | 4338 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4339 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4340 | } |
4341 | ||
89ac8ba1 | 4342 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4343 | } |
0a96a7cc | 4344 | } |
617125a6 | 4345 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4346 | { | |
4347 | tree tmp = NULL; | |
4348 | stmtblock_t init; | |
4349 | ||
4350 | /* If we get to here, all that should be left are pointers. */ | |
4351 | gcc_assert (sym->attr.pointer); | |
4352 | ||
4353 | if (sym->attr.dummy) | |
4354 | { | |
4355 | gfc_start_block (&init); | |
4356 | ||
4357 | /* Character length passed by reference. */ | |
4358 | tmp = sym->ts.u.cl->passed_length; | |
4359 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4360 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4361 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
4362 | /* Pass the final character length back. */ | |
4363 | if (sym->attr.intent != INTENT_IN) | |
4364 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4365 | gfc_charlen_type_node, tmp, | |
4366 | sym->ts.u.cl->backend_decl); | |
4367 | else | |
4368 | tmp = NULL_TREE; | |
4369 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4370 | } | |
4371 | } | |
3e715c81 | 4372 | else if (sym->ts.deferred) |
4373 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4374 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4375 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4376 | else if (sym->ts.type == BT_CHARACTER) |
4377 | { | |
4671339c | 4378 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4379 | gfc_set_backend_locus (&sym->declared_at); |
4380 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4381 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4382 | else |
89ac8ba1 | 4383 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4384 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4385 | } |
c8f1568f | 4386 | else if (sym->attr.assign) |
4387 | { | |
4671339c | 4388 | gfc_save_backend_locus (&loc); |
c8f1568f | 4389 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4390 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4391 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4392 | } |
f0d4969f | 4393 | else if (sym->ts.type == BT_DERIVED |
4394 | && sym->value | |
4395 | && !sym->attr.data | |
4396 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4397 | { |
4398 | gfc_start_block (&tmpblock); | |
4399 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4400 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4401 | NULL_TREE); |
4402 | } | |
a90fe829 | 4403 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 4404 | gcc_unreachable (); |
4ee9c684 | 4405 | } |
4406 | ||
c5faa799 | 4407 | gfc_init_block (&tmpblock); |
d4163395 | 4408 | |
6777213b | 4409 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4410 | { |
4411 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4412 | { | |
eeebe20b | 4413 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4414 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4415 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4416 | } |
1e853e89 | 4417 | } |
d4163395 | 4418 | |
4419 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4420 | && current_fake_result_decl != NULL) | |
4421 | { | |
eeebe20b | 4422 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4423 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4424 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4425 | } |
4426 | ||
89ac8ba1 | 4427 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4428 | } |
4429 | ||
b594087e | 4430 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4431 | { |
2ef51f0e | 4432 | typedef const char *compare_type; |
df4d540f | 4433 | |
2ef51f0e | 4434 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4435 | static bool | |
4436 | equal (module_htab_entry *a, const char *b) | |
4437 | { | |
4438 | return !strcmp (a->name, b); | |
4439 | } | |
4440 | }; | |
4441 | ||
4442 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4443 | |
4444 | /* Hash and equality functions for module_htab's decls. */ | |
4445 | ||
2ef51f0e | 4446 | hashval_t |
4447 | module_decl_hasher::hash (tree t) | |
df4d540f | 4448 | { |
df4d540f | 4449 | const_tree n = DECL_NAME (t); |
4450 | if (n == NULL_TREE) | |
4451 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4452 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4453 | } |
4454 | ||
2ef51f0e | 4455 | bool |
4456 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4457 | { |
df4d540f | 4458 | const_tree n1 = DECL_NAME (t1); |
4459 | if (n1 == NULL_TREE) | |
4460 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4461 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4462 | } |
4463 | ||
4464 | struct module_htab_entry * | |
4465 | gfc_find_module (const char *name) | |
4466 | { | |
df4d540f | 4467 | if (! module_htab) |
2ef51f0e | 4468 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4469 | |
2ef51f0e | 4470 | module_htab_entry **slot |
4471 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4472 | if (*slot == NULL) |
4473 | { | |
25a27413 | 4474 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4475 | |
4476 | entry->name = gfc_get_string (name); | |
2ef51f0e | 4477 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4478 | *slot = entry; | |
df4d540f | 4479 | } |
2ef51f0e | 4480 | return *slot; |
df4d540f | 4481 | } |
4482 | ||
4483 | void | |
4484 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4485 | { | |
df4d540f | 4486 | const char *name; |
4487 | ||
4488 | if (DECL_NAME (decl)) | |
4489 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4490 | else | |
4491 | { | |
4492 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4493 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4494 | } | |
2ef51f0e | 4495 | tree *slot |
4496 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4497 | INSERT); | |
df4d540f | 4498 | if (*slot == NULL) |
2ef51f0e | 4499 | *slot = decl; |
df4d540f | 4500 | } |
4501 | ||
c40a5c1b | 4502 | |
4503 | /* Generate debugging symbols for namelists. This function must come after | |
4504 | generate_local_decl to ensure that the variables in the namelist are | |
4505 | already declared. */ | |
4506 | ||
4507 | static tree | |
4508 | generate_namelist_decl (gfc_symbol * sym) | |
4509 | { | |
4510 | gfc_namelist *nml; | |
4511 | tree decl; | |
4512 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4513 | ||
4514 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4515 | for (nml = sym->namelist; nml; nml = nml->next) | |
4516 | { | |
4517 | if (nml->sym->backend_decl == NULL_TREE) | |
4518 | { | |
4519 | nml->sym->attr.referenced = 1; | |
4520 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4521 | } | |
0a32260c | 4522 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4523 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4524 | } | |
4525 | ||
4526 | decl = make_node (NAMELIST_DECL); | |
4527 | TREE_TYPE (decl) = void_type_node; | |
4528 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4529 | DECL_NAME (decl) = get_identifier (sym->name); | |
4530 | return decl; | |
4531 | } | |
4532 | ||
4533 | ||
4ee9c684 | 4534 | /* Output an initialized decl for a module variable. */ |
4535 | ||
4536 | static void | |
4537 | gfc_create_module_variable (gfc_symbol * sym) | |
4538 | { | |
4539 | tree decl; | |
4ee9c684 | 4540 | |
d77f260f | 4541 | /* Module functions with alternate entries are dealt with later and |
4542 | would get caught by the next condition. */ | |
4543 | if (sym->attr.entry) | |
4544 | return; | |
4545 | ||
c5d33754 | 4546 | /* Make sure we convert the types of the derived types from iso_c_binding |
4547 | into (void *). */ | |
4548 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4549 | && sym->ts.type == BT_DERIVED) | |
4550 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4551 | ||
df4d540f | 4552 | if (sym->attr.flavor == FL_DERIVED |
4553 | && sym->backend_decl | |
4554 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4555 | { | |
4556 | decl = sym->backend_decl; | |
4557 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4558 | |
fe9d2f5a | 4559 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 4560 | { |
4561 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4562 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4563 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4564 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4565 | == sym->ns->proc_name->backend_decl); | |
4566 | } | |
df4d540f | 4567 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4568 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4569 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4570 | } | |
4571 | ||
cf269acc | 4572 | /* Only output variables, procedure pointers and array valued, |
4573 | or derived type, parameters. */ | |
4ee9c684 | 4574 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4575 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4576 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4577 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4578 | return; |
4579 | ||
df4d540f | 4580 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4581 | { | |
4582 | decl = sym->backend_decl; | |
16a40513 | 4583 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4584 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4585 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4586 | gfc_module_add_decl (cur_module, decl); | |
4587 | } | |
4588 | ||
d43a7f7f | 4589 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4590 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 4591 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4592 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4593 | return; |
4594 | ||
2b685f8e | 4595 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4596 | if (sym->backend_decl |
df4d540f | 4597 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4598 | return; | |
2b685f8e | 4599 | |
23d075f4 | 4600 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4601 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4602 | sym->name); | |
4ee9c684 | 4603 | |
92983bfd | 4604 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4605 | && (sym->attr.access == ACCESS_UNKNOWN | |
4606 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4607 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4608 | && flag_module_private)))) |
92983bfd | 4609 | sym->attr.access = ACCESS_PRIVATE; |
4610 | ||
4611 | if (warn_unused_variable && !sym->attr.referenced | |
4612 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4613 | gfc_warning (OPT_Wunused_value, |
4614 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4615 | sym->name, &sym->declared_at); |
4616 | ||
4ee9c684 | 4617 | /* We always want module variables to be created. */ |
4618 | sym->attr.referenced = 1; | |
4619 | /* Create the decl. */ | |
4620 | decl = gfc_get_symbol_decl (sym); | |
4621 | ||
4ee9c684 | 4622 | /* Create the variable. */ |
4623 | pushdecl (decl); | |
df4d540f | 4624 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4625 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4626 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4627 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4628 | |
4629 | /* Also add length of strings. */ | |
4630 | if (sym->ts.type == BT_CHARACTER) | |
4631 | { | |
4632 | tree length; | |
4633 | ||
eeebe20b | 4634 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4635 | gcc_assert (length || sym->attr.proc_pointer); |
4636 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4637 | { |
4638 | pushdecl (length); | |
b2c4af5e | 4639 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4640 | } |
4641 | } | |
a961ca30 | 4642 | |
4643 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4644 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4645 | has_coarray_vars = true; | |
4ee9c684 | 4646 | } |
4647 | ||
51d9479b | 4648 | /* Emit debug information for USE statements. */ |
df4d540f | 4649 | |
4650 | static void | |
4651 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4652 | { | |
4653 | gfc_use_list *use_stmt; | |
4654 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4655 | { | |
4656 | struct module_htab_entry *entry | |
4657 | = gfc_find_module (use_stmt->module_name); | |
4658 | gfc_use_rename *rent; | |
4659 | ||
4660 | if (entry->namespace_decl == NULL) | |
4661 | { | |
4662 | entry->namespace_decl | |
e60a6f7b | 4663 | = build_decl (input_location, |
4664 | NAMESPACE_DECL, | |
df4d540f | 4665 | get_identifier (use_stmt->module_name), |
4666 | void_type_node); | |
4667 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4668 | } | |
51d9479b | 4669 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4670 | if (!use_stmt->only_flag) |
4671 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4672 | NULL_TREE, | |
4673 | ns->proc_name->backend_decl, | |
4674 | false); | |
4675 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4676 | { | |
4677 | tree decl, local_name; | |
df4d540f | 4678 | |
4679 | if (rent->op != INTRINSIC_NONE) | |
4680 | continue; | |
4681 | ||
2ef51f0e | 4682 | hashval_t hash = htab_hash_string (rent->use_name); |
4683 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
4684 | INSERT); | |
df4d540f | 4685 | if (*slot == NULL) |
4686 | { | |
4687 | gfc_symtree *st; | |
4688 | ||
4689 | st = gfc_find_symtree (ns->sym_root, | |
4690 | rent->local_name[0] | |
4691 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4692 | |
4693 | /* The following can happen if a derived type is renamed. */ | |
4694 | if (!st) | |
4695 | { | |
4696 | char *name; | |
4697 | name = xstrdup (rent->local_name[0] | |
4698 | ? rent->local_name : rent->use_name); | |
4699 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4700 | st = gfc_find_symtree (ns->sym_root, name); | |
4701 | free (name); | |
4702 | gcc_assert (st); | |
4703 | } | |
857c96ba | 4704 | |
4705 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4706 | local symbol (see PR41062). */ | |
4707 | if (!st->n.sym->attr.use_assoc) | |
4708 | continue; | |
4709 | ||
51d9479b | 4710 | if (st->n.sym->backend_decl |
4711 | && DECL_P (st->n.sym->backend_decl) | |
4712 | && st->n.sym->module | |
4713 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4714 | { |
51d9479b | 4715 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4716 | || (TREE_CODE (st->n.sym->backend_decl) | |
4717 | != VAR_DECL)); | |
df4d540f | 4718 | decl = copy_node (st->n.sym->backend_decl); |
4719 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4720 | DECL_EXTERNAL (decl) = 1; | |
4721 | DECL_IGNORED_P (decl) = 0; | |
4722 | DECL_INITIAL (decl) = NULL_TREE; | |
4723 | } | |
c40a5c1b | 4724 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
4725 | && st->n.sym->attr.use_only | |
4726 | && st->n.sym->module | |
4727 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
4728 | == 0) | |
4729 | { | |
4730 | decl = generate_namelist_decl (st->n.sym); | |
4731 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4732 | DECL_EXTERNAL (decl) = 1; | |
4733 | DECL_IGNORED_P (decl) = 0; | |
4734 | DECL_INITIAL (decl) = NULL_TREE; | |
4735 | } | |
df4d540f | 4736 | else |
4737 | { | |
4738 | *slot = error_mark_node; | |
2ef51f0e | 4739 | entry->decls->clear_slot (slot); |
df4d540f | 4740 | continue; |
4741 | } | |
4742 | *slot = decl; | |
4743 | } | |
4744 | decl = (tree) *slot; | |
4745 | if (rent->local_name[0]) | |
4746 | local_name = get_identifier (rent->local_name); | |
4747 | else | |
4748 | local_name = NULL_TREE; | |
51d9479b | 4749 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4750 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4751 | ns->proc_name->backend_decl, | |
4752 | !use_stmt->only_flag); | |
4753 | } | |
4754 | } | |
4ee9c684 | 4755 | } |
4756 | ||
51d9479b | 4757 | |
2eb674c9 | 4758 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4759 | will handle. */ | |
4760 | ||
4761 | static bool | |
4762 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4763 | bool pointer) | |
4764 | { | |
4765 | gfc_constructor *c; | |
4766 | gfc_component *cm; | |
4767 | ||
4768 | if (pointer) | |
4769 | return true; | |
4770 | else if (array) | |
4771 | { | |
4772 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4773 | return true; | |
4774 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4775 | return check_constant_initializer (expr, ts, false, false); | |
4776 | else if (expr->expr_type != EXPR_ARRAY) | |
4777 | return false; | |
126387b5 | 4778 | for (c = gfc_constructor_first (expr->value.constructor); |
4779 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4780 | { |
4781 | if (c->iterator) | |
4782 | return false; | |
4783 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4784 | { | |
4785 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4786 | return false; | |
4787 | } | |
4788 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4789 | return false; | |
4790 | } | |
4791 | return true; | |
4792 | } | |
4793 | else switch (ts->type) | |
4794 | { | |
4795 | case BT_DERIVED: | |
4796 | if (expr->expr_type != EXPR_STRUCTURE) | |
4797 | return false; | |
eeebe20b | 4798 | cm = expr->ts.u.derived->components; |
126387b5 | 4799 | for (c = gfc_constructor_first (expr->value.constructor); |
4800 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4801 | { |
4802 | if (!c->expr || cm->attr.allocatable) | |
4803 | continue; | |
4804 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4805 | cm->attr.dimension, | |
4806 | cm->attr.pointer)) | |
4807 | return false; | |
4808 | } | |
4809 | return true; | |
4810 | default: | |
4811 | return expr->expr_type == EXPR_CONSTANT; | |
4812 | } | |
4813 | } | |
4814 | ||
4815 | /* Emit debug info for parameters and unreferenced variables with | |
4816 | initializers. */ | |
4817 | ||
4818 | static void | |
4819 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4820 | { | |
4821 | tree decl; | |
4822 | ||
4823 | if (sym->attr.flavor != FL_PARAMETER | |
4824 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4825 | return; | |
4826 | ||
4827 | if (sym->backend_decl != NULL | |
4828 | || sym->value == NULL | |
4829 | || sym->attr.use_assoc | |
4830 | || sym->attr.dummy | |
4831 | || sym->attr.result | |
4832 | || sym->attr.function | |
4833 | || sym->attr.intrinsic | |
4834 | || sym->attr.pointer | |
4835 | || sym->attr.allocatable | |
4836 | || sym->attr.cray_pointee | |
4837 | || sym->attr.threadprivate | |
4838 | || sym->attr.is_bind_c | |
4839 | || sym->attr.subref_array_pointer | |
4840 | || sym->attr.assign) | |
4841 | return; | |
4842 | ||
4843 | if (sym->ts.type == BT_CHARACTER) | |
4844 | { | |
eeebe20b | 4845 | gfc_conv_const_charlen (sym->ts.u.cl); |
4846 | if (sym->ts.u.cl->backend_decl == NULL | |
4847 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4848 | return; |
4849 | } | |
eeebe20b | 4850 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4851 | return; |
4852 | ||
4853 | if (sym->as) | |
4854 | { | |
4855 | int n; | |
4856 | ||
4857 | if (sym->as->type != AS_EXPLICIT) | |
4858 | return; | |
4859 | for (n = 0; n < sym->as->rank; n++) | |
4860 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4861 | || sym->as->upper[n] == NULL | |
4862 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4863 | return; | |
4864 | } | |
4865 | ||
4866 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4867 | sym->attr.dimension, false)) | |
4868 | return; | |
4869 | ||
4fe73152 | 4870 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 4871 | return; |
4872 | ||
2eb674c9 | 4873 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4874 | decl = build_decl (input_location, |
4875 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4876 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4877 | if (sym->attr.flavor == FL_PARAMETER) | |
4878 | TREE_READONLY (decl) = 1; | |
4879 | gfc_set_decl_location (decl, &sym->declared_at); | |
4880 | if (sym->attr.dimension) | |
4881 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4882 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4883 | TREE_STATIC (decl) = 1; | |
4884 | TREE_USED (decl) = 1; | |
4885 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4886 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4887 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4888 | TREE_TYPE (decl), | |
4889 | sym->attr.dimension, | |
4890 | false, false); | |
3a1c9df2 | 4891 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 4892 | } |
4893 | ||
a961ca30 | 4894 | |
4895 | static void | |
4896 | generate_coarray_sym_init (gfc_symbol *sym) | |
4897 | { | |
4898 | tree tmp, size, decl, token; | |
bd47f0bc | 4899 | bool is_lock_type, is_event_type; |
498b946e | 4900 | int reg_type; |
a961ca30 | 4901 | |
4902 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 4903 | || sym->attr.use_assoc || !sym->attr.referenced |
4904 | || sym->attr.select_type_temporary) | |
a961ca30 | 4905 | return; |
4906 | ||
4907 | decl = sym->backend_decl; | |
4908 | TREE_USED(decl) = 1; | |
4909 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4910 | ||
498b946e | 4911 | is_lock_type = sym->ts.type == BT_DERIVED |
4912 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
4913 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
4914 | ||
bd47f0bc | 4915 | is_event_type = sym->ts.type == BT_DERIVED |
4916 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
4917 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
4918 | ||
a961ca30 | 4919 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
4920 | to make sure the variable is not optimized away. */ | |
4921 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4922 | ||
498b946e | 4923 | /* For lock types, we pass the array size as only the library knows the |
4924 | size of the variable. */ | |
bd47f0bc | 4925 | if (is_lock_type || is_event_type) |
498b946e | 4926 | size = gfc_index_one_node; |
4927 | else | |
4928 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 4929 | |
a90fe829 | 4930 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 4931 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
4932 | fold_convert (size_type_node, size), | |
4933 | build_int_cst (size_type_node, 1)); | |
4934 | ||
a961ca30 | 4935 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4936 | { | |
4937 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4938 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4939 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4940 | } |
4941 | ||
4942 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4943 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4944 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 4945 | if (is_lock_type) |
4946 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 4947 | else if (is_event_type) |
4948 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 4949 | else |
4950 | reg_type = GFC_CAF_COARRAY_STATIC; | |
a961ca30 | 4951 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, |
498b946e | 4952 | build_int_cst (integer_type_node, reg_type), |
a961ca30 | 4953 | token, null_pointer_node, /* token, stat. */ |
4954 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4955 | build_int_cst (integer_type_node, 0)); | |
a961ca30 | 4956 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); |
4957 | ||
a961ca30 | 4958 | /* Handle "static" initializer. */ |
4959 | if (sym->value) | |
4960 | { | |
4961 | sym->attr.pointer = 1; | |
4962 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4963 | true, false); | |
4964 | sym->attr.pointer = 0; | |
4965 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4966 | } | |
4967 | } | |
4968 | ||
4969 | ||
4970 | /* Generate constructor function to initialize static, nonallocatable | |
4971 | coarrays. */ | |
4972 | ||
4973 | static void | |
4974 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4975 | { | |
4976 | tree fndecl, tmp, decl, save_fn_decl; | |
4977 | ||
4978 | save_fn_decl = current_function_decl; | |
4979 | push_function_context (); | |
4980 | ||
4981 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4982 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4983 | create_tmp_var_name ("_caf_init"), tmp); | |
4984 | ||
4985 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4986 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4987 | ||
4988 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4989 | DECL_ARTIFICIAL (decl) = 1; | |
4990 | DECL_IGNORED_P (decl) = 1; | |
4991 | DECL_CONTEXT (decl) = fndecl; | |
4992 | DECL_RESULT (fndecl) = decl; | |
4993 | ||
4994 | pushdecl (fndecl); | |
4995 | current_function_decl = fndecl; | |
4996 | announce_function (fndecl); | |
4997 | ||
4998 | rest_of_decl_compilation (fndecl, 0, 0); | |
4999 | make_decl_rtl (fndecl); | |
00cf115c | 5000 | allocate_struct_function (fndecl, false); |
a961ca30 | 5001 | |
cde2be84 | 5002 | pushlevel (); |
a961ca30 | 5003 | gfc_init_block (&caf_init_block); |
5004 | ||
5005 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5006 | ||
5007 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5008 | decl = getdecls (); | |
5009 | ||
cde2be84 | 5010 | poplevel (1, 1); |
a961ca30 | 5011 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5012 | ||
5013 | DECL_SAVED_TREE (fndecl) | |
5014 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5015 | DECL_INITIAL (fndecl)); | |
5016 | dump_function (TDI_original, fndecl); | |
5017 | ||
5018 | cfun->function_end_locus = input_location; | |
5019 | set_cfun (NULL); | |
5020 | ||
5021 | if (decl_function_context (fndecl)) | |
415d1b9a | 5022 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5023 | else |
35ee1c66 | 5024 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5025 | |
5026 | pop_function_context (); | |
5027 | current_function_decl = save_fn_decl; | |
5028 | } | |
5029 | ||
5030 | ||
c40a5c1b | 5031 | static void |
5032 | create_module_nml_decl (gfc_symbol *sym) | |
5033 | { | |
5034 | if (sym->attr.flavor == FL_NAMELIST) | |
5035 | { | |
5036 | tree decl = generate_namelist_decl (sym); | |
5037 | pushdecl (decl); | |
5038 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5039 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5040 | rest_of_decl_compilation (decl, 1, 0); | |
5041 | gfc_module_add_decl (cur_module, decl); | |
5042 | } | |
5043 | } | |
5044 | ||
5045 | ||
51d9479b | 5046 | /* Generate all the required code for module variables. */ |
5047 | ||
5048 | void | |
5049 | gfc_generate_module_vars (gfc_namespace * ns) | |
5050 | { | |
5051 | module_namespace = ns; | |
5052 | cur_module = gfc_find_module (ns->proc_name->name); | |
5053 | ||
5054 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5055 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5056 | ||
5057 | /* Generate COMMON blocks. */ | |
5058 | gfc_trans_common (ns); | |
5059 | ||
a961ca30 | 5060 | has_coarray_vars = false; |
5061 | ||
51d9479b | 5062 | /* Create decls for all the module variables. */ |
5063 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5064 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5065 | |
4fe73152 | 5066 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5067 | generate_coarray_init (ns); |
5068 | ||
51d9479b | 5069 | cur_module = NULL; |
5070 | ||
5071 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5072 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5073 | } |
5074 | ||
5075 | ||
4ee9c684 | 5076 | static void |
5077 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5078 | { | |
5079 | gfc_namespace *ns; | |
5080 | ||
5081 | /* We create all the prototypes before generating any code. */ | |
5082 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5083 | { | |
5084 | /* Skip namespaces from used modules. */ | |
5085 | if (ns->parent != parent) | |
5086 | continue; | |
5087 | ||
d896f9b3 | 5088 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5089 | } |
5090 | ||
5091 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5092 | { | |
5093 | /* Skip namespaces from used modules. */ | |
5094 | if (ns->parent != parent) | |
5095 | continue; | |
5096 | ||
5097 | gfc_generate_function_code (ns); | |
5098 | } | |
5099 | } | |
5100 | ||
5101 | ||
d95efb59 | 5102 | /* Drill down through expressions for the array specification bounds and |
5103 | character length calling generate_local_decl for all those variables | |
5104 | that have not already been declared. */ | |
5105 | ||
5106 | static void | |
5107 | generate_local_decl (gfc_symbol *); | |
5108 | ||
1acb400a | 5109 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5110 | |
1acb400a | 5111 | static bool |
5112 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5113 | int *f ATTRIBUTE_UNUSED) | |
5114 | { | |
5115 | if (e->expr_type != EXPR_VARIABLE | |
5116 | || sym == e->symtree->n.sym | |
d95efb59 | 5117 | || e->symtree->n.sym->mark |
5118 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5119 | return false; |
d95efb59 | 5120 | |
1acb400a | 5121 | generate_local_decl (e->symtree->n.sym); |
5122 | return false; | |
5123 | } | |
d95efb59 | 5124 | |
1acb400a | 5125 | static void |
5126 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5127 | { | |
5128 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5129 | } |
5130 | ||
5131 | ||
f6d0e37a | 5132 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5133 | |
5134 | static void | |
5135 | generate_dependency_declarations (gfc_symbol *sym) | |
5136 | { | |
5137 | int i; | |
5138 | ||
5139 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5140 | && sym->ts.u.cl |
5141 | && sym->ts.u.cl->length | |
5142 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5143 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5144 | |
5145 | if (sym->as && sym->as->rank) | |
5146 | { | |
5147 | for (i = 0; i < sym->as->rank; i++) | |
5148 | { | |
5149 | generate_expr_decls (sym, sym->as->lower[i]); | |
5150 | generate_expr_decls (sym, sym->as->upper[i]); | |
5151 | } | |
5152 | } | |
5153 | } | |
5154 | ||
5155 | ||
4ee9c684 | 5156 | /* Generate decls for all local variables. We do this to ensure correct |
5157 | handling of expressions which only appear in the specification of | |
5158 | other functions. */ | |
5159 | ||
5160 | static void | |
5161 | generate_local_decl (gfc_symbol * sym) | |
5162 | { | |
5163 | if (sym->attr.flavor == FL_VARIABLE) | |
5164 | { | |
a961ca30 | 5165 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5166 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5167 | has_coarray_vars = true; | |
5168 | ||
d95efb59 | 5169 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5170 | generate_dependency_declarations (sym); |
d95efb59 | 5171 | |
4ee9c684 | 5172 | if (sym->attr.referenced) |
8714fc76 | 5173 | gfc_get_symbol_decl (sym); |
4acad347 | 5174 | |
5175 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5176 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5177 | { |
4acad347 | 5178 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5179 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5180 | { |
5181 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5182 | gfc_warning (OPT_Wunused_dummy_argument, |
5183 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5184 | "INTENT(OUT) but was not set", sym->name, |
5185 | &sym->declared_at); | |
48cb4748 | 5186 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5187 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5188 | gfc_warning (OPT_Wunused_dummy_argument, |
5189 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5190 | "declared INTENT(OUT) but was not set and " |
5191 | "does not have a default initializer", | |
5192 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5193 | if (sym->backend_decl != NULL_TREE) |
5194 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5195 | } |
8290d53f | 5196 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5197 | { |
4166acc7 | 5198 | gfc_warning (OPT_Wunused_dummy_argument, |
5199 | "Unused dummy argument %qs at %L", sym->name, | |
5200 | &sym->declared_at); | |
90a4a5a6 | 5201 | if (sym->backend_decl != NULL_TREE) |
5202 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5203 | } | |
7c0ca46e | 5204 | } |
4acad347 | 5205 | |
f888a3fb | 5206 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5207 | block or a namelist. */ |
36609028 | 5208 | else if (warn_unused_variable |
1dbfac29 | 5209 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5210 | { |
1dbfac29 | 5211 | if (sym->attr.use_only) |
5212 | { | |
4166acc7 | 5213 | gfc_warning (OPT_Wunused_variable, |
5214 | "Unused module variable %qs which has been " | |
1dbfac29 | 5215 | "explicitly imported at %L", sym->name, |
5216 | &sym->declared_at); | |
5217 | if (sym->backend_decl != NULL_TREE) | |
5218 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5219 | } | |
5220 | else if (!sym->attr.use_assoc) | |
5221 | { | |
4166acc7 | 5222 | gfc_warning (OPT_Wunused_variable, |
5223 | "Unused variable %qs declared at %L", | |
1dbfac29 | 5224 | sym->name, &sym->declared_at); |
5225 | if (sym->backend_decl != NULL_TREE) | |
5226 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5227 | } | |
90a4a5a6 | 5228 | } |
8714fc76 | 5229 | |
d4163395 | 5230 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5231 | references the length variable, so force gfc_get_symbol_decl | |
5232 | even when not referenced. If optimize > 0, it will be optimized | |
5233 | away anyway. But do this only after emitting -Wunused-parameter | |
5234 | warning if requested. */ | |
8714fc76 | 5235 | if (sym->attr.dummy && !sym->attr.referenced |
5236 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5237 | && sym->ts.u.cl->backend_decl != NULL |
5238 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 5239 | { |
5240 | sym->attr.referenced = 1; | |
5241 | gfc_get_symbol_decl (sym); | |
5242 | } | |
76776e6d | 5243 | |
d0163401 | 5244 | /* INTENT(out) dummy arguments and result variables with allocatable |
5245 | components are reset by default and need to be set referenced to | |
5246 | generate the code for nullification and automatic lengths. */ | |
5247 | if (!sym->attr.referenced | |
8714fc76 | 5248 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5249 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5250 | && !sym->attr.pointer |
d0163401 | 5251 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5252 | || | |
5253 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5254 | { |
5255 | sym->attr.referenced = 1; | |
5256 | gfc_get_symbol_decl (sym); | |
5257 | } | |
5258 | ||
e72f979a | 5259 | /* Check for dependencies in the array specification and string |
5260 | length, adding the necessary declarations to the function. We | |
5261 | mark the symbol now, as well as in traverse_ns, to prevent | |
5262 | getting stuck in a circular dependency. */ | |
5263 | sym->mark = 1; | |
4ee9c684 | 5264 | } |
5dd246c1 | 5265 | else if (sym->attr.flavor == FL_PARAMETER) |
5266 | { | |
6ecfe89d | 5267 | if (warn_unused_parameter |
f326eb81 | 5268 | && !sym->attr.referenced) |
5269 | { | |
5270 | if (!sym->attr.use_assoc) | |
4166acc7 | 5271 | gfc_warning (OPT_Wunused_parameter, |
5272 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5273 | &sym->declared_at); |
5274 | else if (sym->attr.use_only) | |
4166acc7 | 5275 | gfc_warning (OPT_Wunused_parameter, |
5276 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5277 | "imported at %L", sym->name, &sym->declared_at); |
5278 | } | |
758c9897 | 5279 | |
5280 | if (sym->ns | |
5281 | && sym->ns->parent | |
5282 | && sym->ns->parent->code | |
5283 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5284 | { | |
5285 | if (sym->attr.referenced) | |
5286 | gfc_get_symbol_decl (sym); | |
5287 | sym->mark = 1; | |
5288 | } | |
5dd246c1 | 5289 | } |
fa7b6574 | 5290 | else if (sym->attr.flavor == FL_PROCEDURE) |
5291 | { | |
5292 | /* TODO: move to the appropriate place in resolve.c. */ | |
5293 | if (warn_return_type | |
5294 | && sym->attr.function | |
5295 | && sym->result | |
5296 | && sym != sym->result | |
5297 | && !sym->result->attr.referenced | |
5298 | && !sym->attr.use_assoc | |
5299 | && sym->attr.if_source != IFSRC_IFBODY) | |
5300 | { | |
4166acc7 | 5301 | gfc_warning (OPT_Wreturn_type, |
5302 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5303 | "%L not set", sym->result->name, sym->name, |
5304 | &sym->result->declared_at); | |
5305 | ||
5306 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5307 | sym->result->mark = 1; |
fa7b6574 | 5308 | } |
5309 | } | |
c5d33754 | 5310 | |
19ba2ad8 | 5311 | if (sym->attr.dummy == 1) |
5312 | { | |
5313 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5314 | procedures if they are passed by value. The tree type for them will | |
5315 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5316 | what C would do with characters passed by-value. The value attribute | |
5317 | implies the dummy is a scalar. */ | |
5318 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5319 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5320 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5321 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5322 | |
5323 | /* Unused procedure passed as dummy argument. */ | |
5324 | if (sym->attr.flavor == FL_PROCEDURE) | |
5325 | { | |
5326 | if (!sym->attr.referenced) | |
5327 | { | |
8290d53f | 5328 | if (warn_unused_dummy_argument) |
4166acc7 | 5329 | gfc_warning (OPT_Wunused_dummy_argument, |
5330 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5331 | &sym->declared_at); |
fc6338c7 | 5332 | } |
5333 | ||
5334 | /* Silence bogus "unused parameter" warnings from the | |
5335 | middle end. */ | |
5336 | if (sym->backend_decl != NULL_TREE) | |
5337 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5338 | } | |
19ba2ad8 | 5339 | } |
5340 | ||
c5d33754 | 5341 | /* Make sure we convert the types of the derived types from iso_c_binding |
5342 | into (void *). */ | |
5343 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5344 | && sym->ts.type == BT_DERIVED) | |
5345 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5346 | } |
5347 | ||
c40a5c1b | 5348 | |
5349 | static void | |
5350 | generate_local_nml_decl (gfc_symbol * sym) | |
5351 | { | |
5352 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5353 | { | |
5354 | tree decl = generate_namelist_decl (sym); | |
5355 | pushdecl (decl); | |
5356 | } | |
5357 | } | |
5358 | ||
5359 | ||
4ee9c684 | 5360 | static void |
5361 | generate_local_vars (gfc_namespace * ns) | |
5362 | { | |
5363 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5364 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5365 | } |
5366 | ||
5367 | ||
1b716045 | 5368 | /* Generate a switch statement to jump to the correct entry point. Also |
5369 | creates the label decls for the entry points. */ | |
4ee9c684 | 5370 | |
1b716045 | 5371 | static tree |
5372 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5373 | { |
1b716045 | 5374 | stmtblock_t block; |
5375 | tree label; | |
5376 | tree tmp; | |
5377 | tree val; | |
4ee9c684 | 5378 | |
1b716045 | 5379 | gfc_init_block (&block); |
5380 | for (; el; el = el->next) | |
5381 | { | |
5382 | /* Add the case label. */ | |
b797d6d3 | 5383 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5384 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5385 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5386 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5387 | |
1b716045 | 5388 | /* And jump to the actual entry point. */ |
5389 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5390 | tmp = build1_v (GOTO_EXPR, label); |
5391 | gfc_add_expr_to_block (&block, tmp); | |
5392 | ||
5393 | /* Save the label decl. */ | |
5394 | el->label = label; | |
5395 | } | |
5396 | tmp = gfc_finish_block (&block); | |
5397 | /* The first argument selects the entry point. */ | |
5398 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 5399 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
5400 | val, tmp, NULL_TREE); | |
1b716045 | 5401 | return tmp; |
4ee9c684 | 5402 | } |
5403 | ||
6374121b | 5404 | |
a4abf8a0 | 5405 | /* Add code to string lengths of actual arguments passed to a function against |
5406 | the expected lengths of the dummy arguments. */ | |
5407 | ||
5408 | static void | |
5409 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5410 | { | |
5411 | gfc_formal_arglist *formal; | |
5412 | ||
6777213b | 5413 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5414 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5415 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5416 | { |
5417 | enum tree_code comparison; | |
5418 | tree cond; | |
5419 | tree argname; | |
5420 | gfc_symbol *fsym; | |
5421 | gfc_charlen *cl; | |
5422 | const char *message; | |
5423 | ||
5424 | fsym = formal->sym; | |
eeebe20b | 5425 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5426 | |
5427 | gcc_assert (cl); | |
5428 | gcc_assert (cl->passed_length != NULL_TREE); | |
5429 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5430 | ||
5431 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5432 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5433 | that the actual string length is *at least* the expected one. |
5434 | Sequence association allows for a mismatch of the string length | |
5435 | if the actual argument is (part of) an array, but only if the | |
5436 | dummy argument is an array. (See "Sequence association" in | |
5437 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5438 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5439 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5440 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5441 | { |
5442 | comparison = NE_EXPR; | |
5443 | message = _("Actual string length does not match the declared one" | |
5444 | " for dummy argument '%s' (%ld/%ld)"); | |
5445 | } | |
be4be771 | 5446 | else if (fsym->as && fsym->as->rank != 0) |
5447 | continue; | |
a4abf8a0 | 5448 | else |
5449 | { | |
5450 | comparison = LT_EXPR; | |
5451 | message = _("Actual string length is shorter than the declared one" | |
5452 | " for dummy argument '%s' (%ld/%ld)"); | |
5453 | } | |
5454 | ||
5455 | /* Build the condition. For optional arguments, an actual length | |
5456 | of 0 is also acceptable if the associated string is NULL, which | |
5457 | means the argument was not passed. */ | |
fd779e1d | 5458 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
5459 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 5460 | if (fsym->attr.optional) |
5461 | { | |
5462 | tree not_absent; | |
5463 | tree not_0length; | |
5464 | tree absent_failed; | |
5465 | ||
fd779e1d | 5466 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
5467 | boolean_type_node, | |
5468 | cl->passed_length, | |
385f3f36 | 5469 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5470 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5471 | fsym->attr.referenced = 1; | |
5472 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5473 | |
fd779e1d | 5474 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
5475 | boolean_type_node, not_0length, | |
5476 | not_absent); | |
a4abf8a0 | 5477 | |
fd779e1d | 5478 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
5479 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 5480 | } |
5481 | ||
5482 | /* Build the runtime check. */ | |
5483 | argname = gfc_build_cstring_const (fsym->name); | |
5484 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5485 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5486 | message, argname, | |
5487 | fold_convert (long_integer_type_node, | |
5488 | cl->passed_length), | |
5489 | fold_convert (long_integer_type_node, | |
5490 | cl->backend_decl)); | |
5491 | } | |
5492 | } | |
5493 | ||
5494 | ||
7257a5d2 | 5495 | static void |
5496 | create_main_function (tree fndecl) | |
5497 | { | |
43702da6 | 5498 | tree old_context; |
7257a5d2 | 5499 | tree ftn_main; |
5500 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5501 | stmtblock_t body; | |
5502 | ||
43702da6 | 5503 | old_context = current_function_decl; |
5504 | ||
5505 | if (old_context) | |
5506 | { | |
5507 | push_function_context (); | |
5508 | saved_parent_function_decls = saved_function_decls; | |
5509 | saved_function_decls = NULL_TREE; | |
5510 | } | |
5511 | ||
7257a5d2 | 5512 | /* main() function must be declared with global scope. */ |
5513 | gcc_assert (current_function_decl == NULL_TREE); | |
5514 | ||
5515 | /* Declare the function. */ | |
5516 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5517 | build_pointer_type (pchar_type_node), | |
5518 | NULL_TREE); | |
0509d0ee | 5519 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5520 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5521 | main_identifier_node, tmp); | |
7257a5d2 | 5522 | DECL_EXTERNAL (ftn_main) = 0; |
5523 | TREE_PUBLIC (ftn_main) = 1; | |
5524 | TREE_STATIC (ftn_main) = 1; | |
5525 | DECL_ATTRIBUTES (ftn_main) | |
5526 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5527 | ||
5528 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5529 | result_decl = build_decl (input_location, |
5530 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5531 | DECL_ARTIFICIAL (result_decl) = 1; |
5532 | DECL_IGNORED_P (result_decl) = 1; | |
5533 | DECL_CONTEXT (result_decl) = ftn_main; | |
5534 | DECL_RESULT (ftn_main) = result_decl; | |
5535 | ||
5536 | pushdecl (ftn_main); | |
5537 | ||
5538 | /* Get the arguments. */ | |
5539 | ||
5540 | arglist = NULL_TREE; | |
5541 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5542 | ||
5543 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5544 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5545 | DECL_CONTEXT (argc) = ftn_main; |
5546 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5547 | TREE_READONLY (argc) = 1; | |
5548 | gfc_finish_decl (argc); | |
5549 | arglist = chainon (arglist, argc); | |
5550 | ||
5551 | typelist = TREE_CHAIN (typelist); | |
5552 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5553 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5554 | DECL_CONTEXT (argv) = ftn_main; |
5555 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5556 | TREE_READONLY (argv) = 1; | |
5557 | DECL_BY_REFERENCE (argv) = 1; | |
5558 | gfc_finish_decl (argv); | |
5559 | arglist = chainon (arglist, argv); | |
5560 | ||
5561 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5562 | current_function_decl = ftn_main; | |
5563 | announce_function (ftn_main); | |
5564 | ||
5565 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5566 | make_decl_rtl (ftn_main); | |
00cf115c | 5567 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5568 | pushlevel (); |
7257a5d2 | 5569 | |
5570 | gfc_init_block (&body); | |
5571 | ||
293d72e0 | 5572 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5573 | |
d44f2f7c | 5574 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5575 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5576 | { |
5577 | tree pint_type, pppchar_type; | |
5578 | pint_type = build_pointer_type (integer_type_node); | |
5579 | pppchar_type | |
5580 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5581 | ||
d44f2f7c | 5582 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5583 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5584 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5585 | gfc_add_expr_to_block (&body, tmp); |
5586 | } | |
5587 | ||
7257a5d2 | 5588 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5589 | TREE_USED (argc) = 1; |
5590 | TREE_USED (argv) = 1; | |
389dd41b | 5591 | tmp = build_call_expr_loc (input_location, |
5592 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5593 | gfc_add_expr_to_block (&body, tmp); |
5594 | ||
5595 | /* Add a call to set_options to set up the runtime library Fortran | |
5596 | language standard parameters. */ | |
5597 | { | |
5598 | tree array_type, array, var; | |
f1f41a6c | 5599 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5600 | |
5601 | /* Passing a new option to the library requires four modifications: | |
5602 | + add it to the tree_cons list below | |
5603 | + change the array size in the call to build_array_type | |
5604 | + change the first argument to the library call | |
5605 | gfor_fndecl_set_options | |
5606 | + modify the library (runtime/compile_options.c)! */ | |
5607 | ||
06f13dc1 | 5608 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5609 | build_int_cst (integer_type_node, | |
5610 | gfc_option.warn_std)); | |
5611 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5612 | build_int_cst (integer_type_node, | |
5613 | gfc_option.allow_std)); | |
5614 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5615 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5616 | /* TODO: This is the old -fdump-core option, which is unused but |
5617 | passed due to ABI compatibility; remove when bumping the | |
5618 | library ABI. */ | |
06f13dc1 | 5619 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5620 | build_int_cst (integer_type_node, | |
b2130263 | 5621 | 0)); |
06f13dc1 | 5622 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5623 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 5624 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5625 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 5626 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5627 | build_int_cst (integer_type_node, | |
5628 | (gfc_option.rtcheck | |
5629 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5630 | /* TODO: This is the -frange-check option, which no longer affects |
5631 | library behavior; when bumping the library ABI this slot can be | |
5632 | reused for something else. As it is the last element in the | |
293d72e0 | 5633 | array, we can instead leave it out altogether. */ |
553e7cef | 5634 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5635 | build_int_cst (integer_type_node, 0)); | |
06f13dc1 | 5636 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5637 | build_int_cst (integer_type_node, | |
553e7cef | 5638 | gfc_option.fpe_summary)); |
7257a5d2 | 5639 | |
5640 | array_type = build_array_type (integer_type_node, | |
553e7cef | 5641 | build_index_type (size_int (8))); |
06f13dc1 | 5642 | array = build_constructor (array_type, v); |
7257a5d2 | 5643 | TREE_CONSTANT (array) = 1; |
5644 | TREE_STATIC (array) = 1; | |
5645 | ||
5646 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 5647 | var = build_decl (input_location, VAR_DECL, |
5648 | create_tmp_var_name ("options"), | |
5649 | array_type); | |
5650 | DECL_ARTIFICIAL (var) = 1; | |
5651 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 5652 | TREE_CONSTANT (var) = 1; |
5653 | TREE_STATIC (var) = 1; | |
5654 | TREE_READONLY (var) = 1; | |
5655 | DECL_INITIAL (var) = array; | |
bf77f8ee | 5656 | pushdecl (var); |
7257a5d2 | 5657 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
5658 | ||
389dd41b | 5659 | tmp = build_call_expr_loc (input_location, |
5660 | gfor_fndecl_set_options, 2, | |
553e7cef | 5661 | build_int_cst (integer_type_node, 9), var); |
7257a5d2 | 5662 | gfc_add_expr_to_block (&body, tmp); |
5663 | } | |
5664 | ||
5665 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5666 | the library will raise a FPE when needed. */ | |
5667 | if (gfc_option.fpe != 0) | |
5668 | { | |
389dd41b | 5669 | tmp = build_call_expr_loc (input_location, |
5670 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5671 | build_int_cst (integer_type_node, |
5672 | gfc_option.fpe)); | |
5673 | gfc_add_expr_to_block (&body, tmp); | |
5674 | } | |
5675 | ||
5676 | /* If this is the main program and an -fconvert option was provided, | |
5677 | add a call to set_convert. */ | |
5678 | ||
4fe73152 | 5679 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 5680 | { |
389dd41b | 5681 | tmp = build_call_expr_loc (input_location, |
5682 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 5683 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 5684 | gfc_add_expr_to_block (&body, tmp); |
5685 | } | |
5686 | ||
5687 | /* If this is the main program and an -frecord-marker option was provided, | |
5688 | add a call to set_record_marker. */ | |
5689 | ||
eb106faf | 5690 | if (flag_record_marker != 0) |
7257a5d2 | 5691 | { |
389dd41b | 5692 | tmp = build_call_expr_loc (input_location, |
5693 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5694 | build_int_cst (integer_type_node, |
eb106faf | 5695 | flag_record_marker)); |
7257a5d2 | 5696 | gfc_add_expr_to_block (&body, tmp); |
5697 | } | |
5698 | ||
eb106faf | 5699 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 5700 | { |
389dd41b | 5701 | tmp = build_call_expr_loc (input_location, |
5702 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5703 | build_int_cst (integer_type_node, |
eb106faf | 5704 | flag_max_subrecord_length)); |
7257a5d2 | 5705 | gfc_add_expr_to_block (&body, tmp); |
5706 | } | |
5707 | ||
5708 | /* Call MAIN__(). */ | |
389dd41b | 5709 | tmp = build_call_expr_loc (input_location, |
5710 | fndecl, 0); | |
7257a5d2 | 5711 | gfc_add_expr_to_block (&body, tmp); |
5712 | ||
43702da6 | 5713 | /* Mark MAIN__ as used. */ |
5714 | TREE_USED (fndecl) = 1; | |
5715 | ||
70b5944a | 5716 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 5717 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 5718 | { |
70b5944a | 5719 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
5720 | gfc_add_expr_to_block (&body, tmp); | |
5721 | } | |
5722 | ||
7257a5d2 | 5723 | /* "return 0". */ |
fd779e1d | 5724 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5725 | DECL_RESULT (ftn_main), | |
5726 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5727 | tmp = build1_v (RETURN_EXPR, tmp); |
5728 | gfc_add_expr_to_block (&body, tmp); | |
5729 | ||
5730 | ||
5731 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5732 | decl = getdecls (); | |
5733 | ||
5734 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5735 | poplevel (1, 1); |
7257a5d2 | 5736 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5737 | ||
5738 | DECL_SAVED_TREE (ftn_main) | |
5739 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5740 | DECL_INITIAL (ftn_main)); | |
5741 | ||
5742 | /* Output the GENERIC tree. */ | |
5743 | dump_function (TDI_original, ftn_main); | |
5744 | ||
35ee1c66 | 5745 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 5746 | |
5747 | if (old_context) | |
5748 | { | |
5749 | pop_function_context (); | |
5750 | saved_function_decls = saved_parent_function_decls; | |
5751 | } | |
5752 | current_function_decl = old_context; | |
7257a5d2 | 5753 | } |
5754 | ||
5755 | ||
89ac8ba1 | 5756 | /* Get the result expression for a procedure. */ |
5757 | ||
5758 | static tree | |
5759 | get_proc_result (gfc_symbol* sym) | |
5760 | { | |
5761 | if (sym->attr.subroutine || sym == sym->result) | |
5762 | { | |
5763 | if (current_fake_result_decl != NULL) | |
5764 | return TREE_VALUE (current_fake_result_decl); | |
5765 | ||
5766 | return NULL_TREE; | |
5767 | } | |
5768 | ||
5769 | return sym->result->backend_decl; | |
5770 | } | |
5771 | ||
5772 | ||
5773 | /* Generate an appropriate return-statement for a procedure. */ | |
5774 | ||
5775 | tree | |
5776 | gfc_generate_return (void) | |
5777 | { | |
5778 | gfc_symbol* sym; | |
5779 | tree result; | |
5780 | tree fndecl; | |
5781 | ||
5782 | sym = current_procedure_symbol; | |
5783 | fndecl = sym->backend_decl; | |
5784 | ||
5785 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5786 | result = NULL_TREE; | |
5787 | else | |
5788 | { | |
5789 | result = get_proc_result (sym); | |
5790 | ||
5791 | /* Set the return value to the dummy result variable. The | |
5792 | types may be different for scalar default REAL functions | |
5793 | with -ff2c, therefore we have to convert. */ | |
5794 | if (result != NULL_TREE) | |
5795 | { | |
5796 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5797 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5798 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5799 | result); | |
89ac8ba1 | 5800 | } |
5801 | } | |
5802 | ||
5803 | return build1_v (RETURN_EXPR, result); | |
5804 | } | |
5805 | ||
5806 | ||
d566c3e0 | 5807 | static void |
5808 | is_from_ieee_module (gfc_symbol *sym) | |
5809 | { | |
5810 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
5811 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
5812 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
5813 | seen_ieee_symbol = 1; | |
5814 | } | |
5815 | ||
5816 | ||
5817 | static int | |
5818 | is_ieee_module_used (gfc_namespace *ns) | |
5819 | { | |
5820 | seen_ieee_symbol = 0; | |
5821 | gfc_traverse_ns (ns, is_from_ieee_module); | |
5822 | return seen_ieee_symbol; | |
5823 | } | |
5824 | ||
5825 | ||
01d728a4 | 5826 | static gfc_omp_clauses *module_oacc_clauses; |
5827 | ||
5828 | ||
5829 | static void | |
5830 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
5831 | { | |
5832 | gfc_omp_namelist *n; | |
5833 | ||
5834 | n = gfc_get_omp_namelist (); | |
5835 | n->sym = sym; | |
5836 | n->u.map_op = map_op; | |
5837 | ||
5838 | if (!module_oacc_clauses) | |
5839 | module_oacc_clauses = gfc_get_omp_clauses (); | |
5840 | ||
5841 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
5842 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
5843 | ||
5844 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
5845 | } | |
5846 | ||
5847 | ||
5848 | static void | |
5849 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
5850 | { | |
5851 | if (sym->attr.use_assoc) | |
5852 | { | |
5853 | gfc_omp_map_op map_op; | |
5854 | ||
5855 | if (sym->attr.oacc_declare_create) | |
5856 | map_op = OMP_MAP_FORCE_ALLOC; | |
5857 | ||
5858 | if (sym->attr.oacc_declare_copyin) | |
5859 | map_op = OMP_MAP_FORCE_TO; | |
5860 | ||
5861 | if (sym->attr.oacc_declare_deviceptr) | |
5862 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
5863 | ||
5864 | if (sym->attr.oacc_declare_device_resident) | |
5865 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
5866 | ||
5867 | if (sym->attr.oacc_declare_create | |
5868 | || sym->attr.oacc_declare_copyin | |
5869 | || sym->attr.oacc_declare_deviceptr | |
5870 | || sym->attr.oacc_declare_device_resident) | |
5871 | { | |
5872 | sym->attr.referenced = 1; | |
5873 | add_clause (sym, map_op); | |
5874 | } | |
5875 | } | |
5876 | } | |
5877 | ||
5878 | ||
5879 | void | |
5880 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
5881 | { | |
5882 | gfc_code *code; | |
5883 | gfc_oacc_declare *oc; | |
5884 | locus where = gfc_current_locus; | |
5885 | gfc_omp_clauses *omp_clauses = NULL; | |
5886 | gfc_omp_namelist *n, *p; | |
5887 | ||
5888 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
5889 | ||
5890 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
5891 | { | |
5892 | gfc_oacc_declare *new_oc; | |
5893 | ||
5894 | new_oc = gfc_get_oacc_declare (); | |
5895 | new_oc->next = ns->oacc_declare; | |
5896 | new_oc->clauses = module_oacc_clauses; | |
5897 | ||
5898 | ns->oacc_declare = new_oc; | |
5899 | module_oacc_clauses = NULL; | |
5900 | } | |
5901 | ||
5902 | if (!ns->oacc_declare) | |
5903 | return; | |
5904 | ||
5905 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
5906 | { | |
5907 | if (oc->module_var) | |
5908 | continue; | |
5909 | ||
5910 | if (block) | |
5911 | gfc_error ("Sorry, $!ACC DECLARE at %L is not allowed " | |
5912 | "in BLOCK construct", &oc->loc); | |
5913 | ||
5914 | ||
5915 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
5916 | { | |
5917 | if (omp_clauses == NULL) | |
5918 | { | |
5919 | omp_clauses = oc->clauses; | |
5920 | continue; | |
5921 | } | |
5922 | ||
5923 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
5924 | ; | |
5925 | ||
5926 | gcc_assert (p->next == NULL); | |
5927 | ||
5928 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
5929 | omp_clauses = oc->clauses; | |
5930 | } | |
5931 | } | |
5932 | ||
5933 | if (!omp_clauses) | |
5934 | return; | |
5935 | ||
5936 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
5937 | { | |
5938 | switch (n->u.map_op) | |
5939 | { | |
5940 | case OMP_MAP_DEVICE_RESIDENT: | |
5941 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
5942 | break; | |
5943 | ||
5944 | default: | |
5945 | break; | |
5946 | } | |
5947 | } | |
5948 | ||
5949 | code = XCNEW (gfc_code); | |
5950 | code->op = EXEC_OACC_DECLARE; | |
5951 | code->loc = where; | |
5952 | ||
5953 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
5954 | code->ext.oacc_declare->clauses = omp_clauses; | |
5955 | ||
5956 | code->block = XCNEW (gfc_code); | |
5957 | code->block->op = EXEC_OACC_DECLARE; | |
5958 | code->block->loc = where; | |
5959 | ||
5960 | if (ns->code) | |
5961 | code->block->next = ns->code; | |
5962 | ||
5963 | ns->code = code; | |
5964 | ||
5965 | return; | |
5966 | } | |
5967 | ||
5968 | ||
4ee9c684 | 5969 | /* Generate code for a function. */ |
5970 | ||
5971 | void | |
5972 | gfc_generate_function_code (gfc_namespace * ns) | |
5973 | { | |
5974 | tree fndecl; | |
5975 | tree old_context; | |
5976 | tree decl; | |
5977 | tree tmp; | |
d566c3e0 | 5978 | tree fpstate = NULL_TREE; |
89ac8ba1 | 5979 | stmtblock_t init, cleanup; |
4ee9c684 | 5980 | stmtblock_t body; |
89ac8ba1 | 5981 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5982 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5983 | gfc_symbol *sym; |
89ac8ba1 | 5984 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 5985 | int rank, ieee; |
e50e62f5 | 5986 | bool is_recursive; |
4ee9c684 | 5987 | |
5988 | sym = ns->proc_name; | |
89ac8ba1 | 5989 | previous_procedure_symbol = current_procedure_symbol; |
5990 | current_procedure_symbol = sym; | |
1b716045 | 5991 | |
4ee9c684 | 5992 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5993 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5994 | sym->tlink = sym; |
5995 | ||
5996 | /* Create the declaration for functions with global scope. */ | |
5997 | if (!sym->backend_decl) | |
d896f9b3 | 5998 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5999 | |
6000 | fndecl = sym->backend_decl; | |
6001 | old_context = current_function_decl; | |
6002 | ||
6003 | if (old_context) | |
6004 | { | |
6005 | push_function_context (); | |
6006 | saved_parent_function_decls = saved_function_decls; | |
6007 | saved_function_decls = NULL_TREE; | |
6008 | } | |
6009 | ||
1b716045 | 6010 | trans_function_start (sym); |
4ee9c684 | 6011 | |
89ac8ba1 | 6012 | gfc_init_block (&init); |
4ee9c684 | 6013 | |
c6871095 | 6014 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6015 | { | |
6016 | /* Copy length backend_decls to all entry point result | |
6017 | symbols. */ | |
6018 | gfc_entry_list *el; | |
6019 | tree backend_decl; | |
6020 | ||
eeebe20b | 6021 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6022 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6023 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6024 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6025 | } |
6026 | ||
4ee9c684 | 6027 | /* Translate COMMON blocks. */ |
6028 | gfc_trans_common (ns); | |
6029 | ||
c750cc52 | 6030 | /* Null the parent fake result declaration if this namespace is |
6031 | a module function or an external procedures. */ | |
6032 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6033 | || ns->parent == NULL) | |
6034 | parent_fake_result_decl = NULL_TREE; | |
6035 | ||
2b685f8e | 6036 | gfc_generate_contained_functions (ns); |
6037 | ||
9579733e | 6038 | nonlocal_dummy_decls = NULL; |
6039 | nonlocal_dummy_decl_pset = NULL; | |
6040 | ||
a961ca30 | 6041 | has_coarray_vars = false; |
4ee9c684 | 6042 | generate_local_vars (ns); |
5b11d932 | 6043 | |
4fe73152 | 6044 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6045 | generate_coarray_init (ns); |
6046 | ||
c750cc52 | 6047 | /* Keep the parent fake result declaration in module functions |
6048 | or external procedures. */ | |
6049 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6050 | || ns->parent == NULL) | |
6051 | current_fake_result_decl = parent_fake_result_decl; | |
6052 | else | |
6053 | current_fake_result_decl = NULL_TREE; | |
6054 | ||
89ac8ba1 | 6055 | is_recursive = sym->attr.recursive |
6056 | || (sym->attr.entry_master | |
6057 | && sym->ns->entries->sym->attr.recursive); | |
6058 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6059 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6060 | { |
6061 | char * msg; | |
6062 | ||
87fda26c | 6063 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6064 | sym->name); | |
89ac8ba1 | 6065 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); |
6066 | TREE_STATIC (recurcheckvar) = 1; | |
6067 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
6068 | gfc_add_expr_to_block (&init, recurcheckvar); | |
6069 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6070 | &sym->declared_at, msg); | |
6071 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 6072 | free (msg); |
89ac8ba1 | 6073 | } |
4ee9c684 | 6074 | |
d566c3e0 | 6075 | /* Check if an IEEE module is used in the procedure. If so, save |
6076 | the floating point state. */ | |
6077 | ieee = is_ieee_module_used (ns); | |
6078 | if (ieee) | |
d7333535 | 6079 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6080 | |
4ee9c684 | 6081 | /* Now generate the code for the body of this function. */ |
6082 | gfc_init_block (&body); | |
6083 | ||
6084 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6085 | && sym->attr.subroutine) |
4ee9c684 | 6086 | { |
6087 | tree alternate_return; | |
c750cc52 | 6088 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6089 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6090 | } |
6091 | ||
1b716045 | 6092 | if (ns->entries) |
6093 | { | |
6094 | /* Jump to the correct entry point. */ | |
6095 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6096 | gfc_add_expr_to_block (&body, tmp); | |
6097 | } | |
6098 | ||
a4abf8a0 | 6099 | /* If bounds-checking is enabled, generate code to check passed in actual |
6100 | arguments against the expected dummy argument attributes (e.g. string | |
6101 | lengths). */ | |
c1630d65 | 6102 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6103 | add_argument_checking (&body, sym); |
6104 | ||
01d728a4 | 6105 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6106 | |
4ee9c684 | 6107 | tmp = gfc_trans_code (ns->code); |
6108 | gfc_add_expr_to_block (&body, tmp); | |
6109 | ||
1caa6ab1 | 6110 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6111 | || (sym->result && sym->result != sym | |
6112 | && sym->result->ts.type == BT_DERIVED | |
6113 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6114 | { |
1caa6ab1 | 6115 | bool artificial_result_decl = false; |
89ac8ba1 | 6116 | tree result = get_proc_result (sym); |
1caa6ab1 | 6117 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6118 | ||
6119 | /* Make sure that a function returning an object with | |
6120 | alloc/pointer_components always has a result, where at least | |
6121 | the allocatable/pointer components are set to zero. */ | |
6122 | if (result == NULL_TREE && sym->attr.function | |
6123 | && ((sym->result->ts.type == BT_DERIVED | |
6124 | && (sym->attr.allocatable | |
6125 | || sym->attr.pointer | |
6126 | || sym->result->ts.u.derived->attr.alloc_comp | |
6127 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6128 | || (sym->result->ts.type == BT_CLASS | |
6129 | && (CLASS_DATA (sym)->attr.allocatable | |
6130 | || CLASS_DATA (sym)->attr.class_pointer | |
6131 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6132 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6133 | { | |
6134 | artificial_result_decl = true; | |
6135 | result = gfc_get_fake_result_decl (sym, 0); | |
6136 | } | |
4ee9c684 | 6137 | |
42766cb3 | 6138 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6139 | { |
deb7edfc | 6140 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6141 | && sym->result == sym) | |
6142 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6143 | null_pointer_node)); | |
42766cb3 | 6144 | else if (sym->ts.type == BT_CLASS |
6145 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6146 | && CLASS_DATA (sym)->attr.dimension == 0 |
6147 | && sym->result == sym) | |
42766cb3 | 6148 | { |
6149 | tmp = CLASS_DATA (sym)->backend_decl; | |
6150 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6151 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6152 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6153 | null_pointer_node)); | |
6154 | } | |
deb7edfc | 6155 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6156 | && !sym->attr.allocatable) |
53169279 | 6157 | { |
1caa6ab1 | 6158 | gfc_expr *init_exp; |
6159 | /* Arrays are not initialized using the default initializer of | |
6160 | their elements. Therefore only check if a default | |
6161 | initializer is available when the result is scalar. */ | |
6162 | init_exp = rsym->as ? NULL : gfc_default_initializer (&rsym->ts); | |
6163 | if (init_exp) | |
6164 | { | |
6165 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6166 | gfc_free_expr (init_exp); | |
6167 | gfc_add_expr_to_block (&init, tmp); | |
6168 | } | |
6169 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6170 | { | |
6171 | rank = rsym->as ? rsym->as->rank : 0; | |
6172 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6173 | rank); | |
6174 | gfc_prepend_expr_to_block (&body, tmp); | |
6175 | } | |
53169279 | 6176 | } |
5176859a | 6177 | } |
e50e62f5 | 6178 | |
1caa6ab1 | 6179 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6180 | { |
6181 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 6182 | if (warn_return_type && sym == sym->result) |
4166acc7 | 6183 | gfc_warning (OPT_Wreturn_type, |
6184 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6185 | sym->name, &sym->declared_at); |
90a4a5a6 | 6186 | if (warn_return_type) |
6187 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 6188 | } |
1caa6ab1 | 6189 | if (result != NULL_TREE) |
89ac8ba1 | 6190 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6191 | } |
89ac8ba1 | 6192 | |
6193 | gfc_init_block (&cleanup); | |
6194 | ||
6195 | /* Reset recursion-check variable. */ | |
6196 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6197 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6198 | { |
89ac8ba1 | 6199 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
6200 | recurcheckvar = NULL; | |
e50e62f5 | 6201 | } |
2294b616 | 6202 | |
d566c3e0 | 6203 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6204 | if (ieee) | |
d7333535 | 6205 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6206 | |
89ac8ba1 | 6207 | /* Finish the function body and add init and cleanup code. */ |
6208 | tmp = gfc_finish_block (&body); | |
6209 | gfc_start_wrapped_block (&try_block, tmp); | |
6210 | /* Add code to create and cleanup arrays. */ | |
6211 | gfc_trans_deferred_vars (sym, &try_block); | |
6212 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6213 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6214 | |
6215 | /* Add all the decls we created during processing. */ | |
6216 | decl = saved_function_decls; | |
6217 | while (decl) | |
6218 | { | |
6219 | tree next; | |
6220 | ||
1767a056 | 6221 | next = DECL_CHAIN (decl); |
6222 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6223 | pushdecl (decl); |
4ee9c684 | 6224 | decl = next; |
6225 | } | |
6226 | saved_function_decls = NULL_TREE; | |
6227 | ||
89ac8ba1 | 6228 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6229 | decl = getdecls (); |
4ee9c684 | 6230 | |
6231 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6232 | poplevel (1, 1); |
4ee9c684 | 6233 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6234 | ||
e5004242 | 6235 | DECL_SAVED_TREE (fndecl) |
6236 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6237 | DECL_INITIAL (fndecl)); | |
6238 | ||
9579733e | 6239 | if (nonlocal_dummy_decls) |
6240 | { | |
6241 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6242 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
431205b7 | 6243 | delete nonlocal_dummy_decl_pset; |
9579733e | 6244 | nonlocal_dummy_decls = NULL; |
6245 | nonlocal_dummy_decl_pset = NULL; | |
6246 | } | |
6247 | ||
4ee9c684 | 6248 | /* Output the GENERIC tree. */ |
6249 | dump_function (TDI_original, fndecl); | |
6250 | ||
6251 | /* Store the end of the function, so that we get good line number | |
6252 | info for the epilogue. */ | |
6253 | cfun->function_end_locus = input_location; | |
6254 | ||
6255 | /* We're leaving the context of this function, so zap cfun. | |
6256 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6257 | tree_rest_of_compilation. */ | |
87d4aa85 | 6258 | set_cfun (NULL); |
4ee9c684 | 6259 | |
6260 | if (old_context) | |
6261 | { | |
6262 | pop_function_context (); | |
6263 | saved_function_decls = saved_parent_function_decls; | |
6264 | } | |
6265 | current_function_decl = old_context; | |
6266 | ||
1f7747bd | 6267 | if (decl_function_context (fndecl)) |
6268 | { | |
6269 | /* Register this function with cgraph just far enough to get it | |
6270 | added to our parent's nested function list. | |
6271 | If there are static coarrays in this function, the nested _caf_init | |
6272 | function has already called cgraph_create_node, which also created | |
6273 | the cgraph node for this function. */ | |
4fe73152 | 6274 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
415d1b9a | 6275 | (void) cgraph_node::create (fndecl); |
1f7747bd | 6276 | } |
4ee9c684 | 6277 | else |
35ee1c66 | 6278 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6279 | |
6280 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6281 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6282 | |
6283 | if (sym->attr.is_main_program) | |
6284 | create_main_function (fndecl); | |
89ac8ba1 | 6285 | |
6286 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6287 | } |
6288 | ||
7257a5d2 | 6289 | |
4ee9c684 | 6290 | void |
6291 | gfc_generate_constructors (void) | |
6292 | { | |
22d678e8 | 6293 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6294 | #if 0 |
6295 | tree fnname; | |
6296 | tree type; | |
6297 | tree fndecl; | |
6298 | tree decl; | |
6299 | tree tmp; | |
6300 | ||
6301 | if (gfc_static_ctors == NULL_TREE) | |
6302 | return; | |
6303 | ||
db85cc4f | 6304 | fnname = get_file_function_name ("I"); |
e1036019 | 6305 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6306 | |
e60a6f7b | 6307 | fndecl = build_decl (input_location, |
6308 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6309 | TREE_PUBLIC (fndecl) = 1; |
6310 | ||
e60a6f7b | 6311 | decl = build_decl (input_location, |
6312 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6313 | DECL_ARTIFICIAL (decl) = 1; |
6314 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6315 | DECL_CONTEXT (decl) = fndecl; |
6316 | DECL_RESULT (fndecl) = decl; | |
6317 | ||
6318 | pushdecl (fndecl); | |
6319 | ||
6320 | current_function_decl = fndecl; | |
6321 | ||
b2c4af5e | 6322 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6323 | |
b2c4af5e | 6324 | make_decl_rtl (fndecl); |
4ee9c684 | 6325 | |
00cf115c | 6326 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6327 | |
cde2be84 | 6328 | pushlevel (); |
4ee9c684 | 6329 | |
6330 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6331 | { | |
389dd41b | 6332 | tmp = build_call_expr_loc (input_location, |
6333 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6334 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6335 | } |
6336 | ||
e5004242 | 6337 | decl = getdecls (); |
cde2be84 | 6338 | poplevel (1, 1); |
4ee9c684 | 6339 | |
6340 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6341 | DECL_SAVED_TREE (fndecl) |
6342 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6343 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6344 | |
6345 | free_after_parsing (cfun); | |
6346 | free_after_compilation (cfun); | |
6347 | ||
6148a911 | 6348 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6349 | |
6350 | current_function_decl = NULL_TREE; | |
6351 | #endif | |
6352 | } | |
6353 | ||
9ec7c303 | 6354 | /* Translates a BLOCK DATA program unit. This means emitting the |
6355 | commons contained therein plus their initializations. We also emit | |
6356 | a globally visible symbol to make sure that each BLOCK DATA program | |
6357 | unit remains unique. */ | |
6358 | ||
6359 | void | |
6360 | gfc_generate_block_data (gfc_namespace * ns) | |
6361 | { | |
6362 | tree decl; | |
6363 | tree id; | |
6364 | ||
b31f705b | 6365 | /* Tell the backend the source location of the block data. */ |
6366 | if (ns->proc_name) | |
6367 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6368 | else | |
6369 | gfc_set_backend_locus (&gfc_current_locus); | |
6370 | ||
6371 | /* Process the DATA statements. */ | |
9ec7c303 | 6372 | gfc_trans_common (ns); |
6373 | ||
b31f705b | 6374 | /* Create a global symbol with the mane of the block data. This is to |
6375 | generate linker errors if the same name is used twice. It is never | |
6376 | really used. */ | |
9ec7c303 | 6377 | if (ns->proc_name) |
6378 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6379 | else | |
6380 | id = get_identifier ("__BLOCK_DATA__"); | |
6381 | ||
e60a6f7b | 6382 | decl = build_decl (input_location, |
6383 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6384 | TREE_PUBLIC (decl) = 1; |
6385 | TREE_STATIC (decl) = 1; | |
df4d540f | 6386 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6387 | |
6388 | pushdecl (decl); | |
6389 | rest_of_decl_compilation (decl, 1, 0); | |
6390 | } | |
6391 | ||
b549d2a5 | 6392 | |
6a7084d7 | 6393 | /* Process the local variables of a BLOCK construct. */ |
6394 | ||
6395 | void | |
3c82e013 | 6396 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6397 | { |
6398 | tree decl; | |
6399 | ||
6400 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 6401 | has_coarray_vars = false; |
6402 | ||
6a7084d7 | 6403 | generate_local_vars (ns); |
6404 | ||
4fe73152 | 6405 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6406 | generate_coarray_init (ns); |
6407 | ||
6a7084d7 | 6408 | decl = saved_local_decls; |
6409 | while (decl) | |
6410 | { | |
6411 | tree next; | |
6412 | ||
1767a056 | 6413 | next = DECL_CHAIN (decl); |
6414 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6415 | pushdecl (decl); |
6416 | decl = next; | |
6417 | } | |
6418 | saved_local_decls = NULL_TREE; | |
6419 | } | |
6420 | ||
6421 | ||
4ee9c684 | 6422 | #include "gt-fortran-trans-decl.h" |