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4ee9c684 | 1 | /* Backend function setup |
fbd26352 | 2 | Copyright (C) 2002-2019 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
4cba6f60 | 26 | #include "target.h" |
27 | #include "function.h" | |
28 | #include "tree.h" | |
dc8078a3 | 29 | #include "gfortran.h" |
4cba6f60 | 30 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
31 | #include "trans.h" | |
32 | #include "stringpool.h" | |
33 | #include "cgraph.h" | |
b20a8bb4 | 34 | #include "fold-const.h" |
9ed99284 | 35 | #include "stor-layout.h" |
36 | #include "varasm.h" | |
37 | #include "attribs.h" | |
930c75f4 | 38 | #include "dumpfile.h" |
7cbc820e | 39 | #include "toplev.h" /* For announce_function. */ |
df4d540f | 40 | #include "debug.h" |
126387b5 | 41 | #include "constructor.h" |
4ee9c684 | 42 | #include "trans-types.h" |
43 | #include "trans-array.h" | |
44 | #include "trans-const.h" | |
45 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
46 | #include "trans-stmt.h" | |
7c1a9598 | 47 | #include "gomp-constants.h" |
1ec957b0 | 48 | #include "gimplify.h" |
1d740b07 | 49 | #include "omp-general.h" |
4ee9c684 | 50 | |
51 | #define MAX_LABEL_VALUE 99999 | |
52 | ||
53 | ||
54 | /* Holds the result of the function if no result variable specified. */ | |
55 | ||
56 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 57 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 58 | |
4ee9c684 | 59 | |
60 | /* Holds the variable DECLs for the current function. */ | |
61 | ||
d4163395 | 62 | static GTY(()) tree saved_function_decls; |
63 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 64 | |
6a7084d7 | 65 | /* Holds the variable DECLs that are locals. */ |
66 | ||
67 | static GTY(()) tree saved_local_decls; | |
68 | ||
4ee9c684 | 69 | /* The namespace of the module we're currently generating. Only used while |
70 | outputting decls for module variables. Do not rely on this being set. */ | |
71 | ||
72 | static gfc_namespace *module_namespace; | |
73 | ||
89ac8ba1 | 74 | /* The currently processed procedure symbol. */ |
75 | static gfc_symbol* current_procedure_symbol = NULL; | |
76 | ||
3adf245a | 77 | /* The currently processed module. */ |
78 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 79 | |
a961ca30 | 80 | /* With -fcoarray=lib: For generating the registering call |
81 | of static coarrays. */ | |
82 | static bool has_coarray_vars; | |
83 | static stmtblock_t caf_init_block; | |
84 | ||
85 | ||
4ee9c684 | 86 | /* List of static constructor functions. */ |
87 | ||
88 | tree gfc_static_ctors; | |
89 | ||
90 | ||
d566c3e0 | 91 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
92 | static int seen_ieee_symbol; | |
93 | ||
4ee9c684 | 94 | /* Function declarations for builtin library functions. */ |
95 | ||
4ee9c684 | 96 | tree gfor_fndecl_pause_numeric; |
97 | tree gfor_fndecl_pause_string; | |
98 | tree gfor_fndecl_stop_numeric; | |
99 | tree gfor_fndecl_stop_string; | |
070cc790 | 100 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 101 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 102 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 103 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 104 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 105 | tree gfor_fndecl_os_error; |
50ad5fa2 | 106 | tree gfor_fndecl_generate_error; |
7257a5d2 | 107 | tree gfor_fndecl_set_args; |
8c84a5de | 108 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 109 | tree gfor_fndecl_set_options; |
15774a8b | 110 | tree gfor_fndecl_set_convert; |
f23886ab | 111 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 112 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 113 | tree gfor_fndecl_ctime; |
114 | tree gfor_fndecl_fdate; | |
dbc97b88 | 115 | tree gfor_fndecl_ttynam; |
4ee9c684 | 116 | tree gfor_fndecl_in_pack; |
117 | tree gfor_fndecl_in_unpack; | |
77ddff12 | 118 | tree gfor_fndecl_cfi_to_gfc; |
119 | tree gfor_fndecl_gfc_to_cfi; | |
4ee9c684 | 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 | |
70b5944a | 126 | /* Coarray run-time library function decls. */ |
127 | tree gfor_fndecl_caf_init; | |
128 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 129 | tree gfor_fndecl_caf_this_image; |
130 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 131 | tree gfor_fndecl_caf_register; |
d0d776fb | 132 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 133 | tree gfor_fndecl_caf_get; |
134 | tree gfor_fndecl_caf_send; | |
135 | tree gfor_fndecl_caf_sendget; | |
eee0cf09 | 136 | tree gfor_fndecl_caf_get_by_ref; |
137 | tree gfor_fndecl_caf_send_by_ref; | |
138 | tree gfor_fndecl_caf_sendget_by_ref; | |
70b5944a | 139 | tree gfor_fndecl_caf_sync_all; |
71cf3ae6 | 140 | tree gfor_fndecl_caf_sync_memory; |
70b5944a | 141 | tree gfor_fndecl_caf_sync_images; |
ba4d9b7e | 142 | tree gfor_fndecl_caf_stop_str; |
143 | tree gfor_fndecl_caf_stop_numeric; | |
70b5944a | 144 | tree gfor_fndecl_caf_error_stop; |
145 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 146 | tree gfor_fndecl_caf_atomic_def; |
147 | tree gfor_fndecl_caf_atomic_ref; | |
148 | tree gfor_fndecl_caf_atomic_cas; | |
149 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 150 | tree gfor_fndecl_caf_lock; |
151 | tree gfor_fndecl_caf_unlock; | |
bd47f0bc | 152 | tree gfor_fndecl_caf_event_post; |
153 | tree gfor_fndecl_caf_event_wait; | |
154 | tree gfor_fndecl_caf_event_query; | |
d9ca273e | 155 | tree gfor_fndecl_caf_fail_image; |
156 | tree gfor_fndecl_caf_failed_images; | |
157 | tree gfor_fndecl_caf_image_status; | |
158 | tree gfor_fndecl_caf_stopped_images; | |
6d3cbc0c | 159 | tree gfor_fndecl_caf_form_team; |
160 | tree gfor_fndecl_caf_change_team; | |
161 | tree gfor_fndecl_caf_end_team; | |
162 | tree gfor_fndecl_caf_sync_team; | |
163 | tree gfor_fndecl_caf_get_team; | |
164 | tree gfor_fndecl_caf_team_number; | |
52306a18 | 165 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 166 | tree gfor_fndecl_co_max; |
167 | tree gfor_fndecl_co_min; | |
e39efcef | 168 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 169 | tree gfor_fndecl_co_sum; |
3d2aa0e8 | 170 | tree gfor_fndecl_caf_is_present; |
70b5944a | 171 | |
70b5944a | 172 | |
4ee9c684 | 173 | /* Math functions. Many other math functions are handled in |
174 | trans-intrinsic.c. */ | |
175 | ||
920e54ef | 176 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 177 | tree gfor_fndecl_math_ishftc4; |
178 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 179 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 180 | |
181 | ||
182 | /* String functions. */ | |
183 | ||
4ee9c684 | 184 | tree gfor_fndecl_compare_string; |
185 | tree gfor_fndecl_concat_string; | |
186 | tree gfor_fndecl_string_len_trim; | |
187 | tree gfor_fndecl_string_index; | |
188 | tree gfor_fndecl_string_scan; | |
189 | tree gfor_fndecl_string_verify; | |
190 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 191 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 192 | tree gfor_fndecl_adjustl; |
193 | tree gfor_fndecl_adjustr; | |
b44437b9 | 194 | tree gfor_fndecl_select_string; |
40b806de | 195 | tree gfor_fndecl_compare_string_char4; |
196 | tree gfor_fndecl_concat_string_char4; | |
197 | tree gfor_fndecl_string_len_trim_char4; | |
198 | tree gfor_fndecl_string_index_char4; | |
199 | tree gfor_fndecl_string_scan_char4; | |
200 | tree gfor_fndecl_string_verify_char4; | |
201 | tree gfor_fndecl_string_trim_char4; | |
202 | tree gfor_fndecl_string_minmax_char4; | |
203 | tree gfor_fndecl_adjustl_char4; | |
204 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 205 | tree gfor_fndecl_select_string_char4; |
206 | ||
207 | ||
208 | /* Conversion between character kinds. */ | |
209 | tree gfor_fndecl_convert_char1_to_char4; | |
210 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 211 | |
212 | ||
213 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 214 | tree gfor_fndecl_size0; |
215 | tree gfor_fndecl_size1; | |
9b057c29 | 216 | tree gfor_fndecl_iargc; |
92c9ff97 | 217 | tree gfor_fndecl_kill; |
218 | tree gfor_fndecl_kill_sub; | |
5f34f219 | 219 | tree gfor_fndecl_is_contiguous0; |
92c9ff97 | 220 | |
4ee9c684 | 221 | |
59e2a584 | 222 | /* Intrinsic functions implemented in Fortran. */ |
223 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 224 | tree gfor_fndecl_si_kind; |
225 | tree gfor_fndecl_sr_kind; | |
226 | ||
4e8e57b0 | 227 | /* BLAS gemm functions. */ |
228 | tree gfor_fndecl_sgemm; | |
229 | tree gfor_fndecl_dgemm; | |
230 | tree gfor_fndecl_cgemm; | |
231 | tree gfor_fndecl_zgemm; | |
232 | ||
0ecc062b | 233 | /* RANDOM_INIT function. */ |
234 | tree gfor_fndecl_random_init; | |
4ee9c684 | 235 | |
236 | static void | |
237 | gfc_add_decl_to_parent_function (tree decl) | |
238 | { | |
22d678e8 | 239 | gcc_assert (decl); |
4ee9c684 | 240 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
241 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 242 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 243 | saved_parent_function_decls = decl; |
244 | } | |
245 | ||
246 | void | |
247 | gfc_add_decl_to_function (tree decl) | |
248 | { | |
22d678e8 | 249 | gcc_assert (decl); |
4ee9c684 | 250 | TREE_USED (decl) = 1; |
251 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 252 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 253 | saved_function_decls = decl; |
254 | } | |
255 | ||
6a7084d7 | 256 | static void |
257 | add_decl_as_local (tree decl) | |
258 | { | |
259 | gcc_assert (decl); | |
260 | TREE_USED (decl) = 1; | |
261 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 262 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 263 | saved_local_decls = decl; |
264 | } | |
265 | ||
4ee9c684 | 266 | |
b797d6d3 | 267 | /* Build a backend label declaration. Set TREE_USED for named labels. |
268 | The context of the label is always the current_function_decl. All | |
269 | labels are marked artificial. */ | |
4ee9c684 | 270 | |
271 | tree | |
272 | gfc_build_label_decl (tree label_id) | |
273 | { | |
274 | /* 2^32 temporaries should be enough. */ | |
275 | static unsigned int tmp_num = 1; | |
276 | tree label_decl; | |
277 | char *label_name; | |
278 | ||
279 | if (label_id == NULL_TREE) | |
280 | { | |
281 | /* Build an internal label name. */ | |
282 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
283 | label_id = get_identifier (label_name); | |
284 | } | |
285 | else | |
286 | label_name = NULL; | |
287 | ||
288 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 289 | label_decl = build_decl (input_location, |
290 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 291 | DECL_CONTEXT (label_decl) = current_function_decl; |
adc78298 | 292 | SET_DECL_MODE (label_decl, VOIDmode); |
4ee9c684 | 293 | |
b797d6d3 | 294 | /* We always define the label as used, even if the original source |
295 | file never references the label. We don't want all kinds of | |
296 | spurious warnings for old-style Fortran code with too many | |
297 | labels. */ | |
298 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 299 | |
b797d6d3 | 300 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 301 | return label_decl; |
302 | } | |
303 | ||
304 | ||
b31f705b | 305 | /* Set the backend source location of a decl. */ |
306 | ||
307 | void | |
308 | gfc_set_decl_location (tree decl, locus * loc) | |
309 | { | |
b31f705b | 310 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 311 | } |
312 | ||
313 | ||
4ee9c684 | 314 | /* Return the backend label declaration for a given label structure, |
315 | or create it if it doesn't exist yet. */ | |
316 | ||
317 | tree | |
318 | gfc_get_label_decl (gfc_st_label * lp) | |
319 | { | |
4ee9c684 | 320 | if (lp->backend_decl) |
321 | return lp->backend_decl; | |
322 | else | |
323 | { | |
324 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
325 | tree label_decl; | |
326 | ||
327 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 328 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 329 | |
330 | /* Build a mangled name for the label. */ | |
331 | sprintf (label_name, "__label_%.6d", lp->value); | |
332 | ||
333 | /* Build the LABEL_DECL node. */ | |
334 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
335 | ||
336 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 337 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 338 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 339 | else |
340 | DECL_ARTIFICIAL (label_decl) = 1; | |
341 | ||
342 | /* Store the label in the label list and return the LABEL_DECL. */ | |
343 | lp->backend_decl = label_decl; | |
344 | return label_decl; | |
345 | } | |
346 | } | |
347 | ||
348 | ||
349 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
350 | ||
351 | static tree | |
352 | gfc_sym_identifier (gfc_symbol * sym) | |
353 | { | |
0509d0ee | 354 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
355 | return (get_identifier ("MAIN__")); | |
356 | else | |
357 | return (get_identifier (sym->name)); | |
4ee9c684 | 358 | } |
359 | ||
360 | ||
361 | /* Construct mangled name from symbol name. */ | |
362 | ||
363 | static tree | |
364 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
365 | { | |
366 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
367 | ||
c5d33754 | 368 | /* Prevent the mangling of identifiers that have an assigned |
369 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 370 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
371 | return get_identifier (sym->binding_label); | |
a90fe829 | 372 | |
8b7e5587 | 373 | if (!sym->fn_result_spec) |
374 | { | |
375 | if (sym->module == NULL) | |
376 | return gfc_sym_identifier (sym); | |
377 | else | |
378 | { | |
379 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); | |
380 | return get_identifier (name); | |
381 | } | |
382 | } | |
4ee9c684 | 383 | else |
384 | { | |
8b7e5587 | 385 | /* This is an entity that is actually local to a module procedure |
386 | that appears in the result specification expression. Since | |
387 | sym->module will be a zero length string, we use ns->proc_name | |
388 | instead. */ | |
389 | if (sym->ns->proc_name && sym->ns->proc_name->module) | |
390 | { | |
391 | snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s", | |
392 | sym->ns->proc_name->module, | |
393 | sym->ns->proc_name->name, | |
394 | sym->name); | |
395 | return get_identifier (name); | |
396 | } | |
397 | else | |
398 | { | |
399 | snprintf (name, sizeof name, "__%s_PROC_%s", | |
400 | sym->ns->proc_name->name, sym->name); | |
401 | return get_identifier (name); | |
402 | } | |
4ee9c684 | 403 | } |
404 | } | |
405 | ||
406 | ||
407 | /* Construct mangled function name from symbol name. */ | |
408 | ||
409 | static tree | |
410 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
411 | { | |
412 | int has_underscore; | |
413 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
414 | ||
c5d33754 | 415 | /* It may be possible to simply use the binding label if it's |
416 | provided, and remove the other checks. Then we could use it | |
417 | for other things if we wished. */ | |
418 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 419 | sym->binding_label) |
c5d33754 | 420 | /* use the binding label rather than the mangled name */ |
421 | return get_identifier (sym->binding_label); | |
422 | ||
4b8eb6ca | 423 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 424 | || (sym->module != NULL && (sym->attr.external |
425 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 426 | && !sym->attr.module_procedure) |
4ee9c684 | 427 | { |
a2f97da7 | 428 | /* Main program is mangled into MAIN__. */ |
429 | if (sym->attr.is_main_program) | |
430 | return get_identifier ("MAIN__"); | |
431 | ||
432 | /* Intrinsic procedures are never mangled. */ | |
433 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 434 | return get_identifier (sym->name); |
435 | ||
829d7a08 | 436 | if (flag_underscoring) |
4ee9c684 | 437 | { |
438 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 439 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 440 | snprintf (name, sizeof name, "%s__", sym->name); |
441 | else | |
442 | snprintf (name, sizeof name, "%s_", sym->name); | |
443 | return get_identifier (name); | |
444 | } | |
445 | else | |
446 | return get_identifier (sym->name); | |
447 | } | |
448 | else | |
449 | { | |
f08a3f6f | 450 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 451 | return get_identifier (name); |
452 | } | |
453 | } | |
454 | ||
455 | ||
1236e28b | 456 | void |
457 | gfc_set_decl_assembler_name (tree decl, tree name) | |
458 | { | |
459 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
460 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
461 | } | |
462 | ||
463 | ||
5ed82495 | 464 | /* Returns true if a variable of specified size should go on the stack. */ |
465 | ||
466 | int | |
467 | gfc_can_put_var_on_stack (tree size) | |
468 | { | |
469 | unsigned HOST_WIDE_INT low; | |
470 | ||
471 | if (!INTEGER_CST_P (size)) | |
472 | return 0; | |
473 | ||
eb106faf | 474 | if (flag_max_stack_var_size < 0) |
5ed82495 | 475 | return 1; |
476 | ||
e1d65c9f | 477 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 478 | return 0; |
479 | ||
f9ae6f95 | 480 | low = TREE_INT_CST_LOW (size); |
eb106faf | 481 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 482 | return 0; |
483 | ||
484 | /* TODO: Set a per-function stack size limit. */ | |
485 | ||
486 | return 1; | |
487 | } | |
488 | ||
489 | ||
b7bf3f81 | 490 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
491 | an expression involving its corresponding pointer. There are | |
492 | 2 cases; one for variable size arrays, and one for everything else, | |
493 | because variable-sized arrays require one fewer level of | |
494 | indirection. */ | |
495 | ||
496 | static void | |
497 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
498 | { | |
499 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
500 | tree value; | |
501 | ||
502 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 503 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 504 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
505 | ptr_decl); | |
b7bf3f81 | 506 | |
507 | /* Check to see if we're dealing with a variable-sized array. */ | |
508 | if (sym->attr.dimension | |
a90fe829 | 509 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
510 | { | |
942043f8 | 511 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 512 | them here. */ |
513 | value = convert (TREE_TYPE (decl), ptr_decl); | |
514 | } | |
515 | else | |
516 | { | |
517 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
518 | ptr_decl); | |
389dd41b | 519 | value = build_fold_indirect_ref_loc (input_location, |
520 | ptr_decl); | |
b7bf3f81 | 521 | } |
522 | ||
523 | SET_DECL_VALUE_EXPR (decl, value); | |
524 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 525 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 526 | } |
527 | ||
528 | ||
b9c7fce7 | 529 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 530 | |
531 | static void | |
b9c7fce7 | 532 | gfc_finish_decl (tree decl) |
4ee9c684 | 533 | { |
b9c7fce7 | 534 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
535 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 536 | |
fe732a9b | 537 | if (!VAR_P (decl)) |
b9c7fce7 | 538 | return; |
4ee9c684 | 539 | |
b9c7fce7 | 540 | if (DECL_SIZE (decl) == NULL_TREE |
541 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
542 | layout_decl (decl, 0); | |
543 | ||
544 | /* A few consistency checks. */ | |
545 | /* A static variable with an incomplete type is an error if it is | |
546 | initialized. Also if it is not file scope. Otherwise, let it | |
547 | through, but if it is not `extern' then it may cause an error | |
548 | message later. */ | |
549 | /* An automatic variable with an incomplete type is an error. */ | |
550 | ||
551 | /* We should know the storage size. */ | |
552 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 553 | || (TREE_STATIC (decl) |
b9c7fce7 | 554 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
555 | : DECL_EXTERNAL (decl))); | |
556 | ||
557 | /* The storage size should be constant. */ | |
558 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
559 | || !DECL_SIZE (decl) | |
560 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 561 | } |
562 | ||
563 | ||
cf5f881f | 564 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
565 | ||
566 | void | |
567 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
568 | { | |
569 | if (!attr->dimension && !attr->codimension) | |
570 | { | |
571 | /* Handle scalar allocatable variables. */ | |
572 | if (attr->allocatable) | |
573 | { | |
574 | gfc_allocate_lang_decl (decl); | |
575 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
576 | } | |
577 | /* Handle scalar pointer variables. */ | |
578 | if (attr->pointer) | |
579 | { | |
580 | gfc_allocate_lang_decl (decl); | |
581 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
582 | } | |
583 | } | |
584 | } | |
585 | ||
586 | ||
4ee9c684 | 587 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
588 | ||
589 | static void | |
590 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
591 | { | |
c1977dbe | 592 | tree new_type; |
b549d2a5 | 593 | |
b7bf3f81 | 594 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 595 | if (sym->attr.cray_pointee) |
b7bf3f81 | 596 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 597 | |
845a9546 | 598 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
599 | This is the equivalent of the TARGET variables. | |
600 | We also need to set this if the variable is passed by reference in a | |
601 | CALL statement. */ | |
4ee9c684 | 602 | if (sym->attr.target) |
603 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 604 | |
4ee9c684 | 605 | /* If it wasn't used we wouldn't be getting it. */ |
606 | TREE_USED (decl) = 1; | |
607 | ||
7415cfe4 | 608 | if (sym->attr.flavor == FL_PARAMETER |
609 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
610 | TREE_READONLY (decl) = 1; | |
611 | ||
4ee9c684 | 612 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
613 | because this would add them to the current scope rather than the | |
614 | function scope. */ | |
615 | if (current_function_decl != NULL_TREE) | |
616 | { | |
7c0ba894 | 617 | if (sym->ns->proc_name |
618 | && (sym->ns->proc_name->backend_decl == current_function_decl | |
619 | || sym->result == sym)) | |
4ee9c684 | 620 | gfc_add_decl_to_function (decl); |
7c0ba894 | 621 | else if (sym->ns->proc_name |
622 | && sym->ns->proc_name->attr.flavor == FL_LABEL) | |
6a7084d7 | 623 | /* This is a BLOCK construct. */ |
624 | add_decl_as_local (decl); | |
4ee9c684 | 625 | else |
626 | gfc_add_decl_to_parent_function (decl); | |
627 | } | |
628 | ||
b7bf3f81 | 629 | if (sym->attr.cray_pointee) |
630 | return; | |
631 | ||
c5cb468c | 632 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 633 | { |
634 | /* We need to put variables that are bind(c) into the common | |
635 | segment of the object file, because this is what C would do. | |
636 | gfortran would typically put them in either the BSS or | |
637 | initialized data segments, and only mark them as common if | |
638 | they were part of common blocks. However, if they are not put | |
ea657963 | 639 | into common space, then C cannot initialize global Fortran |
c5d33754 | 640 | variables that it interoperates with and the draft says that |
641 | either Fortran or C should be able to initialize it (but not | |
642 | both, of course.) (J3/04-007, section 15.3). */ | |
643 | TREE_PUBLIC(decl) = 1; | |
644 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 645 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
646 | { | |
647 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
648 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
649 | } | |
c5d33754 | 650 | } |
a90fe829 | 651 | |
4ee9c684 | 652 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 653 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 654 | { |
655 | DECL_EXTERNAL (decl) = 1; | |
656 | TREE_PUBLIC (decl) = 1; | |
657 | } | |
8b7e5587 | 658 | else if (sym->fn_result_spec && !sym->ns->proc_name->module) |
659 | { | |
660 | ||
661 | if (sym->ns->proc_name->attr.if_source != IFSRC_DECL) | |
662 | DECL_EXTERNAL (decl) = 1; | |
663 | else | |
664 | TREE_STATIC (decl) = 1; | |
665 | ||
666 | TREE_PUBLIC (decl) = 1; | |
667 | } | |
4f0fae8e | 668 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 669 | { |
6b20224d | 670 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 671 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 672 | |
c8ddfd5d | 673 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 674 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 675 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
676 | { | |
677 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
678 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
679 | } | |
4ee9c684 | 680 | } |
681 | ||
f0d4969f | 682 | /* Derived types are a bit peculiar because of the possibility of |
683 | a default initializer; this must be applied each time the variable | |
684 | comes into scope it therefore need not be static. These variables | |
685 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 686 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 687 | SAVE_EXPLICIT. */ |
688 | if (!sym->attr.use_assoc | |
689 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 690 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 691 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 692 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 693 | TREE_STATIC (decl) = 1; |
ef814c81 | 694 | |
9f732c4e | 695 | /* If derived-type variables with DTIO procedures are not made static |
696 | some bits of code referencing them get optimized away. | |
697 | TODO Understand why this is so and fix it. */ | |
698 | if (!sym->attr.use_assoc | |
699 | && ((sym->ts.type == BT_DERIVED | |
700 | && sym->ts.u.derived->attr.has_dtio_procs) | |
701 | || (sym->ts.type == BT_CLASS | |
702 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
703 | TREE_STATIC (decl) = 1; | |
704 | ||
629c30bb | 705 | /* Treat asynchronous variables the same as volatile, for now. */ |
706 | if (sym->attr.volatile_ || sym->attr.asynchronous) | |
ef814c81 | 707 | { |
ef814c81 | 708 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 709 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 710 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
711 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 712 | } |
ef814c81 | 713 | |
4ee9c684 | 714 | /* Keep variables larger than max-stack-var-size off stack. */ |
7c0ba894 | 715 | if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive) |
716 | && !sym->attr.automatic | |
4ee9c684 | 717 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
a3f2c0e1 | 718 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
719 | /* Put variable length auto array pointers always into stack. */ | |
720 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
721 | || sym->attr.dimension == 0 | |
722 | || sym->as->type != AS_EXPLICIT | |
723 | || sym->attr.pointer | |
724 | || sym->attr.allocatable) | |
725 | && !DECL_ARTIFICIAL (decl)) | |
14eab729 | 726 | { |
727 | TREE_STATIC (decl) = 1; | |
728 | ||
729 | /* Because the size of this variable isn't known until now, we may have | |
730 | greedily added an initializer to this variable (in build_init_assign) | |
731 | even though the max-stack-var-size indicates the variable should be | |
732 | static. Therefore we rip out the automatic initializer here and | |
733 | replace it with a static one. */ | |
734 | gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); | |
735 | gfc_code *prev = NULL; | |
736 | gfc_code *code = sym->ns->code; | |
737 | while (code && code->op == EXEC_INIT_ASSIGN) | |
738 | { | |
739 | /* Look for an initializer meant for this symbol. */ | |
740 | if (code->expr1->symtree == st) | |
741 | { | |
742 | if (prev) | |
743 | prev->next = code->next; | |
744 | else | |
745 | sym->ns->code = code->next; | |
746 | ||
747 | break; | |
748 | } | |
749 | ||
750 | prev = code; | |
751 | code = code->next; | |
752 | } | |
753 | if (code && code->op == EXEC_INIT_ASSIGN) | |
754 | { | |
755 | /* Keep the init expression for a static initializer. */ | |
756 | sym->value = code->expr2; | |
757 | /* Cleanup the defunct code object, without freeing the init expr. */ | |
758 | code->expr2 = NULL; | |
759 | gfc_free_statement (code); | |
760 | free (code); | |
761 | } | |
762 | } | |
764f1175 | 763 | |
764 | /* Handle threadprivate variables. */ | |
9dda1f80 | 765 | if (sym->attr.threadprivate |
764f1175 | 766 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 767 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 768 | |
769 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 770 | } |
771 | ||
772 | ||
773 | /* Allocate the lang-specific part of a decl. */ | |
774 | ||
775 | void | |
776 | gfc_allocate_lang_decl (tree decl) | |
777 | { | |
cf5f881f | 778 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
779 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 780 | } |
781 | ||
782 | /* Remember a symbol to generate initialization/cleanup code at function | |
783 | entry/exit. */ | |
784 | ||
785 | static void | |
786 | gfc_defer_symbol_init (gfc_symbol * sym) | |
787 | { | |
788 | gfc_symbol *p; | |
789 | gfc_symbol *last; | |
790 | gfc_symbol *head; | |
791 | ||
792 | /* Don't add a symbol twice. */ | |
793 | if (sym->tlink) | |
794 | return; | |
795 | ||
796 | last = head = sym->ns->proc_name; | |
797 | p = last->tlink; | |
798 | ||
799 | /* Make sure that setup code for dummy variables which are used in the | |
800 | setup of other variables is generated first. */ | |
801 | if (sym->attr.dummy) | |
802 | { | |
803 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
804 | This is a circular list, so don't go past the head. */ | |
805 | while (p != head | |
806 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
807 | { | |
808 | last = p; | |
809 | p = p->tlink; | |
810 | } | |
811 | } | |
812 | /* Insert in between last and p. */ | |
813 | last->tlink = sym; | |
814 | sym->tlink = p; | |
815 | } | |
816 | ||
817 | ||
9f5a9ac5 | 818 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
819 | backend_decl for a module symbol, if it all ready exists. If the | |
820 | module gsymbol does not exist, it is created. If the symbol does | |
821 | not exist, it is added to the gsymbol namespace. Returns true if | |
822 | an existing backend_decl is found. */ | |
823 | ||
824 | bool | |
825 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
826 | { | |
827 | gfc_gsymbol *gsym; | |
828 | gfc_symbol *s; | |
829 | gfc_symtree *st; | |
830 | ||
831 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
832 | ||
833 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
834 | { | |
835 | st = NULL; | |
836 | s = NULL; | |
837 | ||
d7cd448a | 838 | /* Check for a symbol with the same name. */ |
9f5a9ac5 | 839 | if (gsym) |
840 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
841 | ||
842 | if (!s) | |
843 | { | |
844 | if (!gsym) | |
845 | { | |
8e8898b2 | 846 | gsym = gfc_get_gsymbol (sym->module, false); |
9f5a9ac5 | 847 | gsym->type = GSYM_MODULE; |
848 | gsym->ns = gfc_get_namespace (NULL, 0); | |
849 | } | |
850 | ||
851 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
852 | st->n.sym = sym; | |
853 | sym->refs++; | |
854 | } | |
d7cd448a | 855 | else if (gfc_fl_struct (sym->attr.flavor)) |
9f5a9ac5 | 856 | { |
c2958b6b | 857 | if (s && s->attr.flavor == FL_PROCEDURE) |
858 | { | |
859 | gfc_interface *intr; | |
860 | gcc_assert (s->attr.generic); | |
861 | for (intr = s->generic; intr; intr = intr->next) | |
d7cd448a | 862 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c2958b6b | 863 | { |
864 | s = intr->sym; | |
865 | break; | |
866 | } | |
867 | } | |
868 | ||
d7cd448a | 869 | /* Normally we can assume that s is a derived-type symbol since it |
870 | shares a name with the derived-type sym. However if sym is a | |
871 | STRUCTURE, it may in fact share a name with any other basic type | |
872 | variable. If s is in fact of derived type then we can continue | |
873 | looking for a duplicate type declaration. */ | |
874 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
875 | { | |
876 | s = s->ts.u.derived; | |
877 | } | |
878 | ||
879 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
880 | { | |
881 | if (s->attr.flavor == FL_UNION) | |
882 | s->backend_decl = gfc_get_union_type (s); | |
883 | else | |
884 | s->backend_decl = gfc_get_derived_type (s); | |
885 | } | |
9f5a9ac5 | 886 | gfc_copy_dt_decls_ifequal (s, sym, true); |
887 | return true; | |
888 | } | |
889 | else if (s->backend_decl) | |
890 | { | |
85ec2f13 | 891 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 892 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
893 | true); | |
894 | else if (sym->ts.type == BT_CHARACTER) | |
895 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
896 | sym->backend_decl = s->backend_decl; | |
897 | return true; | |
898 | } | |
899 | } | |
900 | return false; | |
901 | } | |
902 | ||
903 | ||
4ee9c684 | 904 | /* Create an array index type variable with function scope. */ |
905 | ||
906 | static tree | |
907 | create_index_var (const char * pfx, int nest) | |
908 | { | |
909 | tree decl; | |
910 | ||
911 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
912 | if (nest) | |
913 | gfc_add_decl_to_parent_function (decl); | |
914 | else | |
915 | gfc_add_decl_to_function (decl); | |
916 | return decl; | |
917 | } | |
918 | ||
919 | ||
920 | /* Create variables to hold all the non-constant bits of info for a | |
921 | descriptorless array. Remember these in the lang-specific part of the | |
922 | type. */ | |
923 | ||
924 | static void | |
925 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
926 | { | |
927 | tree type; | |
928 | int dim; | |
929 | int nest; | |
7b82374f | 930 | gfc_namespace* procns; |
c6793847 | 931 | symbol_attribute *array_attr; |
932 | gfc_array_spec *as; | |
933 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 934 | |
935 | type = TREE_TYPE (decl); | |
c6793847 | 936 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
937 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 938 | |
939 | /* We just use the descriptor, if there is one. */ | |
940 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
941 | return; | |
942 | ||
22d678e8 | 943 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 944 | procns = gfc_find_proc_namespace (sym->ns); |
945 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 946 | && !sym->attr.contained; |
947 | ||
c6793847 | 948 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
949 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 950 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
951 | { | |
952 | tree token; | |
ac36faf0 | 953 | tree token_type = build_qualified_type (pvoid_type_node, |
954 | TYPE_QUAL_RESTRICT); | |
955 | ||
956 | if (sym->module && (sym->attr.use_assoc | |
957 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
958 | { | |
959 | tree token_name | |
960 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
961 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
962 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
963 | token_type); | |
3adf245a | 964 | if (sym->attr.use_assoc) |
965 | DECL_EXTERNAL (token) = 1; | |
966 | else | |
967 | TREE_STATIC (token) = 1; | |
968 | ||
c8ddfd5d | 969 | TREE_PUBLIC (token) = 1; |
970 | ||
971 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
972 | { | |
973 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
974 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
975 | } | |
ac36faf0 | 976 | } |
977 | else | |
3adf245a | 978 | { |
979 | token = gfc_create_var_np (token_type, "caf_token"); | |
980 | TREE_STATIC (token) = 1; | |
981 | } | |
a961ca30 | 982 | |
a961ca30 | 983 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
984 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 985 | DECL_NONALIASED (token) = 1; |
986 | ||
987 | if (sym->module && !sym->attr.use_assoc) | |
988 | { | |
989 | pushdecl (token); | |
990 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
991 | gfc_module_add_decl (cur_module, token); | |
992 | } | |
13feeaec | 993 | else if (sym->attr.host_assoc |
994 | && TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
995 | != TRANSLATION_UNIT_DECL) | |
1dbd61ab | 996 | gfc_add_decl_to_parent_function (token); |
3adf245a | 997 | else |
998 | gfc_add_decl_to_function (token); | |
a961ca30 | 999 | } |
1000 | ||
4ee9c684 | 1001 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
1002 | { | |
1003 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 1004 | { |
1005 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1006 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1007 | } | |
9ca15c9b | 1008 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 1009 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 1010 | && (as->type != AS_ASSUMED_SIZE |
1011 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 1012 | { |
1013 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1014 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1015 | } | |
4ee9c684 | 1016 | |
1017 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 1018 | { |
1019 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
1020 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
1021 | } | |
4ee9c684 | 1022 | } |
076094b7 | 1023 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
1024 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
1025 | { | |
1026 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
1027 | { | |
1028 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1029 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1030 | } | |
1031 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
1032 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
1033 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
1034 | { | |
1035 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1036 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1037 | } | |
1038 | } | |
4ee9c684 | 1039 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
1040 | { | |
1041 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
1042 | "offset"); | |
86254bbf | 1043 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
1044 | ||
4ee9c684 | 1045 | if (nest) |
1046 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1047 | else | |
1048 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1049 | } | |
d4163395 | 1050 | |
1051 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 1052 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 1053 | { |
1054 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
1055 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
1056 | } | |
d4163395 | 1057 | |
1058 | if (POINTER_TYPE_P (type)) | |
1059 | { | |
1060 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
1061 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
1062 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
1063 | type = TREE_TYPE (type); | |
1064 | } | |
1065 | ||
1066 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
1067 | { | |
1068 | tree size, range; | |
1069 | ||
fd779e1d | 1070 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1071 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 1072 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
1073 | size); | |
1074 | TYPE_DOMAIN (type) = range; | |
1075 | layout_type (type); | |
1076 | } | |
6cf159a6 | 1077 | |
3fe3b7ca | 1078 | if (TYPE_NAME (type) != NULL_TREE && as->rank > 0 |
c6793847 | 1079 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
fe732a9b | 1080 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
6cf159a6 | 1081 | { |
1082 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1083 | ||
c6793847 | 1084 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 1085 | { |
1086 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1087 | gtype = TREE_TYPE (gtype); | |
1088 | } | |
1089 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1090 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
1091 | TYPE_NAME (type) = NULL_TREE; | |
1092 | } | |
1093 | ||
1094 | if (TYPE_NAME (type) == NULL_TREE) | |
1095 | { | |
1096 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
1097 | ||
c6793847 | 1098 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 1099 | { |
7130ec9d | 1100 | tree lbound, ubound; |
1101 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
1102 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
1103 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 1104 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 1105 | /* Ensure the bound variables aren't optimized out at -O0. |
1106 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 1107 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1108 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1109 | end up in debug info. */ | |
fe732a9b | 1110 | if (lbound |
1111 | && VAR_P (lbound) | |
1112 | && DECL_ARTIFICIAL (lbound) | |
1113 | && DECL_IGNORED_P (lbound)) | |
7130ec9d | 1114 | { |
1115 | if (DECL_NAME (lbound) | |
1116 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1117 | "lbound") != 0) | |
84bfaaeb | 1118 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 1119 | DECL_IGNORED_P (lbound) = 0; |
1120 | } | |
fe732a9b | 1121 | if (ubound |
1122 | && VAR_P (ubound) | |
1123 | && DECL_ARTIFICIAL (ubound) | |
1124 | && DECL_IGNORED_P (ubound)) | |
7130ec9d | 1125 | { |
1126 | if (DECL_NAME (ubound) | |
1127 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1128 | "ubound") != 0) | |
84bfaaeb | 1129 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1130 | DECL_IGNORED_P (ubound) = 0; |
1131 | } | |
6cf159a6 | 1132 | } |
e60a6f7b | 1133 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1134 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1135 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1136 | } | |
4ee9c684 | 1137 | } |
1138 | ||
1139 | ||
1140 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1141 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1142 | initialization, and construct full type information. */ |
1143 | ||
1144 | static tree | |
1145 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1146 | { | |
1147 | tree decl; | |
1148 | tree type; | |
1149 | gfc_array_spec *as; | |
c6793847 | 1150 | symbol_attribute *array_attr; |
4ee9c684 | 1151 | char *name; |
3d8dea5a | 1152 | gfc_packed packed; |
4ee9c684 | 1153 | int n; |
1154 | bool known_size; | |
c6793847 | 1155 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1156 | ||
1157 | /* Use the array as and attr. */ | |
1158 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1159 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1160 | ||
1161 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1162 | For class arrays the information if sym is an allocatable or pointer | |
1163 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1164 | too many reasons to be of use here). */ | |
1165 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1166 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1167 | || array_attr->allocatable | |
1168 | || (as && as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1169 | return dummy; |
1170 | ||
c6793847 | 1171 | /* Add to list of variables if not a fake result variable. |
1172 | These symbols are set on the symbol only, not on the class component. */ | |
4ee9c684 | 1173 | if (sym->attr.result || sym->attr.dummy) |
1174 | gfc_defer_symbol_init (sym); | |
1175 | ||
c6793847 | 1176 | /* For a class array the array descriptor is in the _data component, while |
1177 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1178 | descriptor. */ | |
1179 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1180 | : TREE_TYPE (dummy)); | |
1181 | /* type now is the array descriptor w/o any indirection. */ | |
22d678e8 | 1182 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1183 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1184 | |
f888a3fb | 1185 | /* Do we know the element size? */ |
4ee9c684 | 1186 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1187 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1188 | |
c6793847 | 1189 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1190 | { |
1191 | /* For descriptorless arrays with known element size the actual | |
1192 | argument is sufficient. */ | |
4ee9c684 | 1193 | gfc_build_qualified_array (dummy, sym); |
1194 | return dummy; | |
1195 | } | |
1196 | ||
4ee9c684 | 1197 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1198 | { | |
cb8e3560 | 1199 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1200 | packed = PACKED_NO; |
3d235846 | 1201 | |
1202 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1203 | are not repacked. */ | |
829d7a08 | 1204 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1205 | { |
1206 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1207 | packed = PACKED_FULL; |
4ee9c684 | 1208 | } |
1209 | else | |
1210 | { | |
1211 | if (as->type == AS_EXPLICIT) | |
1212 | { | |
3d8dea5a | 1213 | packed = PACKED_FULL; |
4ee9c684 | 1214 | for (n = 0; n < as->rank; n++) |
1215 | { | |
1216 | if (!(as->upper[n] | |
1217 | && as->lower[n] | |
1218 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1219 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1220 | { |
1221 | packed = PACKED_PARTIAL; | |
1222 | break; | |
1223 | } | |
4ee9c684 | 1224 | } |
1225 | } | |
1226 | else | |
3d8dea5a | 1227 | packed = PACKED_PARTIAL; |
4ee9c684 | 1228 | } |
1229 | ||
c6793847 | 1230 | /* For classarrays the element type is required, but |
1231 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1232 | type = is_classarray ? gfc_get_element_type (type) | |
1233 | : gfc_typenode_for_spec (&sym->ts); | |
1234 | type = gfc_get_nodesc_array_type (type, as, packed, | |
e1b3b79b | 1235 | !sym->attr.target); |
4ee9c684 | 1236 | } |
1237 | else | |
1238 | { | |
1239 | /* We now have an expression for the element size, so create a fully | |
1240 | qualified type. Reset sym->backend decl or this will just return the | |
1241 | old type. */ | |
d95efb59 | 1242 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1243 | sym->backend_decl = NULL_TREE; |
1244 | type = gfc_sym_type (sym); | |
3d8dea5a | 1245 | packed = PACKED_FULL; |
4ee9c684 | 1246 | } |
1247 | ||
1248 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1249 | decl = build_decl (input_location, |
1250 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1251 | |
1252 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1253 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1254 | TREE_PUBLIC (decl) = 0; |
1255 | TREE_STATIC (decl) = 0; | |
1256 | DECL_EXTERNAL (decl) = 0; | |
1257 | ||
a1f1e248 | 1258 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1259 | if (sym->attr.optional) | |
1260 | TREE_NO_WARNING (decl) = 1; | |
1261 | ||
4ee9c684 | 1262 | /* We should never get deferred shape arrays here. We used to because of |
1263 | frontend bugs. */ | |
c6793847 | 1264 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1265 | |
3d8dea5a | 1266 | if (packed == PACKED_PARTIAL) |
1267 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1268 | else if (packed == PACKED_FULL) | |
1269 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1270 | |
1271 | gfc_build_qualified_array (decl, sym); | |
1272 | ||
1273 | if (DECL_LANG_SPECIFIC (dummy)) | |
1274 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1275 | else | |
1276 | gfc_allocate_lang_decl (decl); | |
1277 | ||
1278 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1279 | ||
1280 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1281 | || sym->attr.contained) | |
1282 | gfc_add_decl_to_function (decl); | |
1283 | else | |
1284 | gfc_add_decl_to_parent_function (decl); | |
1285 | ||
1286 | return decl; | |
1287 | } | |
1288 | ||
4ee9c684 | 1289 | /* Return a constant or a variable to use as a string length. Does not |
1290 | add the decl to the current scope. */ | |
1291 | ||
1292 | static tree | |
1293 | gfc_create_string_length (gfc_symbol * sym) | |
1294 | { | |
eeebe20b | 1295 | gcc_assert (sym->ts.u.cl); |
1296 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1297 | |
eeebe20b | 1298 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1299 | { |
a4abf8a0 | 1300 | tree length; |
774bbd60 | 1301 | const char *name; |
4ee9c684 | 1302 | |
873f242d | 1303 | /* The string length variable shall be in static memory if it is either |
1304 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1305 | relevant is "len=:" - otherwise, it is either a constant length or | |
1306 | it is an automatic variable. */ | |
be125be0 | 1307 | bool static_length = sym->attr.save |
1308 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1309 | || (flag_max_stack_var_size == 0 |
873f242d | 1310 | && sym->ts.deferred && !sym->attr.dummy |
1311 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1312 | |
1313 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1314 | variables as some systems do not support the "." in the assembler name. | |
1315 | For nonstatic variables, the "." does not appear in assembler. */ | |
1316 | if (static_length) | |
1317 | { | |
1318 | if (sym->module) | |
1319 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1320 | sym->name); | |
1321 | else | |
1322 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1323 | } | |
1324 | else if (sym->module) | |
774bbd60 | 1325 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1326 | else | |
1327 | name = gfc_get_string (".%s", sym->name); | |
1328 | ||
e60a6f7b | 1329 | length = build_decl (input_location, |
1330 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1331 | gfc_charlen_type_node); |
4ee9c684 | 1332 | DECL_ARTIFICIAL (length) = 1; |
1333 | TREE_USED (length) = 1; | |
d4163395 | 1334 | if (sym->ns->proc_name->tlink != NULL) |
1335 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1336 | |
eeebe20b | 1337 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1338 | |
be125be0 | 1339 | if (static_length) |
774bbd60 | 1340 | TREE_STATIC (length) = 1; |
1341 | ||
1342 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1343 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1344 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1345 | } |
1346 | ||
eeebe20b | 1347 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1348 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1349 | } |
1350 | ||
c8f1568f | 1351 | /* If a variable is assigned a label, we add another two auxiliary |
1352 | variables. */ | |
1353 | ||
1354 | static void | |
1355 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1356 | { | |
1357 | tree addr; | |
1358 | tree length; | |
1359 | tree decl; | |
1360 | ||
1361 | gcc_assert (sym->backend_decl); | |
1362 | ||
1363 | decl = sym->backend_decl; | |
1364 | gfc_allocate_lang_decl (decl); | |
1365 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1366 | length = build_decl (input_location, |
1367 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1368 | gfc_charlen_type_node); |
e60a6f7b | 1369 | addr = build_decl (input_location, |
1370 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1371 | pvoid_type_node); |
1372 | gfc_finish_var_decl (length, sym); | |
1373 | gfc_finish_var_decl (addr, sym); | |
1374 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
f4d3c071 | 1375 | ASSIGN_ADDR cannot be used. Equal -1 means that ASSIGN_ADDR is the |
c8f1568f | 1376 | target label's address. Otherwise, value is the length of a format string |
1377 | and ASSIGN_ADDR is its address. */ | |
1378 | if (TREE_STATIC (length)) | |
35bf1214 | 1379 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1380 | else |
1381 | gfc_defer_symbol_init (sym); | |
1382 | ||
1383 | GFC_DECL_STRING_LEN (decl) = length; | |
1384 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1385 | } | |
4ee9c684 | 1386 | |
36b0a1b0 | 1387 | |
1388 | static tree | |
1389 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1390 | { | |
1391 | unsigned id; | |
1392 | tree attr; | |
1393 | ||
1394 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1395 | if (sym_attr.ext_attr & (1 << id)) | |
1396 | { | |
1397 | attr = build_tree_list ( | |
1398 | get_identifier (ext_attr_list[id].middle_end_name), | |
1399 | NULL_TREE); | |
1400 | list = chainon (list, attr); | |
1401 | } | |
1402 | ||
9b500985 | 1403 | tree clauses = NULL_TREE; |
691447ab | 1404 | |
1d740b07 | 1405 | if (sym_attr.oacc_routine_lop != OACC_ROUTINE_LOP_NONE) |
7c1a9598 | 1406 | { |
1d740b07 | 1407 | omp_clause_code code; |
1408 | switch (sym_attr.oacc_routine_lop) | |
1409 | { | |
1410 | case OACC_ROUTINE_LOP_GANG: | |
1411 | code = OMP_CLAUSE_GANG; | |
1412 | break; | |
1413 | case OACC_ROUTINE_LOP_WORKER: | |
1414 | code = OMP_CLAUSE_WORKER; | |
1415 | break; | |
1416 | case OACC_ROUTINE_LOP_VECTOR: | |
1417 | code = OMP_CLAUSE_VECTOR; | |
1418 | break; | |
1419 | case OACC_ROUTINE_LOP_SEQ: | |
1420 | code = OMP_CLAUSE_SEQ; | |
1421 | break; | |
1422 | case OACC_ROUTINE_LOP_NONE: | |
7378dd70 | 1423 | case OACC_ROUTINE_LOP_ERROR: |
1d740b07 | 1424 | default: |
1425 | gcc_unreachable (); | |
1426 | } | |
1427 | tree c = build_omp_clause (UNKNOWN_LOCATION, code); | |
9b500985 | 1428 | OMP_CLAUSE_CHAIN (c) = clauses; |
1429 | clauses = c; | |
7c1a9598 | 1430 | |
9b500985 | 1431 | tree dims = oacc_build_routine_dims (clauses); |
1d740b07 | 1432 | list = oacc_replace_fn_attrib_attr (list, dims); |
7c1a9598 | 1433 | } |
1434 | ||
9b500985 | 1435 | if (sym_attr.omp_declare_target_link) |
1436 | list = tree_cons (get_identifier ("omp declare target link"), | |
1437 | NULL_TREE, list); | |
1438 | else if (sym_attr.omp_declare_target) | |
1439 | list = tree_cons (get_identifier ("omp declare target"), | |
1440 | clauses, list); | |
1441 | ||
36b0a1b0 | 1442 | return list; |
1443 | } | |
1444 | ||
1445 | ||
802532b9 | 1446 | static void build_function_decl (gfc_symbol * sym, bool global); |
1447 | ||
1448 | ||
4ee9c684 | 1449 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1450 | exist. */ | |
1451 | ||
1452 | tree | |
1453 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1454 | { | |
1455 | tree decl; | |
1456 | tree length = NULL_TREE; | |
36b0a1b0 | 1457 | tree attributes; |
4ee9c684 | 1458 | int byref; |
cd2c99b8 | 1459 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1460 | bool fun_or_res; |
4ee9c684 | 1461 | |
0b5dc8b5 | 1462 | gcc_assert (sym->attr.referenced |
9e45357a | 1463 | || sym->attr.flavor == FL_PROCEDURE |
1464 | || sym->attr.use_assoc | |
4b8eb6ca | 1465 | || sym->attr.used_in_submodule |
9e45357a | 1466 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1467 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1468 | && sym->backend_decl)); | |
4ee9c684 | 1469 | |
ff70e443 | 1470 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1471 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1472 | else | |
1473 | byref = 0; | |
1474 | ||
09c509ed | 1475 | /* Make sure that the vtab for the declared type is completed. */ |
1476 | if (sym->ts.type == BT_CLASS) | |
1477 | { | |
50b4b37b | 1478 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1479 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1480 | { |
1481 | gfc_find_derived_vtab (c->ts.u.derived); | |
1482 | gfc_get_derived_type (sym->ts.u.derived); | |
1483 | } | |
09c509ed | 1484 | } |
1485 | ||
9d958d5b | 1486 | /* PDT parameterized array components and string_lengths must have the |
1487 | 'len' parameters substituted for the expressions appearing in the | |
1488 | declaration of the entity and memory allocated/deallocated. */ | |
1489 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1490 | && sym->param_list != NULL | |
1491 | && !(sym->attr.host_assoc || sym->attr.use_assoc || sym->attr.dummy)) | |
1492 | gfc_defer_symbol_init (sym); | |
1493 | ||
1494 | /* Dummy PDT 'len' parameters should be checked when they are explicit. */ | |
1495 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1496 | && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) | |
1497 | && sym->param_list != NULL | |
1498 | && sym->attr.dummy) | |
1499 | gfc_defer_symbol_init (sym); | |
1500 | ||
617125a6 | 1501 | /* All deferred character length procedures need to retain the backend |
1502 | decl, which is a pointer to the character length in the caller's | |
1503 | namespace and to declare a local character length. */ | |
1504 | if (!byref && sym->attr.function | |
1505 | && sym->ts.type == BT_CHARACTER | |
1506 | && sym->ts.deferred | |
1507 | && sym->ts.u.cl->passed_length == NULL | |
1508 | && sym->ts.u.cl->backend_decl | |
1509 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1510 | { | |
1511 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1512 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1513 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
617125a6 | 1514 | } |
1515 | ||
8b9eb27e | 1516 | fun_or_res = byref && (sym->attr.result |
1517 | || (sym->attr.function && sym->ts.deferred)); | |
1518 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1519 | { |
1520 | /* Return via extra parameter. */ | |
1521 | if (sym->attr.result && byref | |
1522 | && !sym->backend_decl) | |
1523 | { | |
1524 | sym->backend_decl = | |
1525 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1526 | /* For entry master function skip over the __entry |
1527 | argument. */ | |
1528 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1529 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1530 | } |
1531 | ||
1532 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1533 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1534 | |
1edfd7dd | 1535 | /* However, the string length of deferred arrays must be set. */ |
1536 | if (sym->ts.type == BT_CHARACTER | |
1537 | && sym->ts.deferred | |
1538 | && sym->attr.dimension | |
1539 | && sym->attr.allocatable) | |
1540 | gfc_defer_symbol_init (sym); | |
1541 | ||
47e6a59a | 1542 | if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS) |
1543 | GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1; | |
1544 | ||
4ee9c684 | 1545 | /* Create a character length variable. */ |
1546 | if (sym->ts.type == BT_CHARACTER) | |
1547 | { | |
617125a6 | 1548 | /* For a deferred dummy, make a new string length variable. */ |
1549 | if (sym->ts.deferred | |
1550 | && | |
1551 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1552 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1553 | ||
d1b1479f | 1554 | if (sym->ts.deferred && byref) |
617125a6 | 1555 | { |
d1b1479f | 1556 | /* The string length of a deferred char array is stored in the |
1557 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1558 | marked as a result. Exempt this variable from generating a | |
1559 | temporary for it. */ | |
1560 | if (sym->attr.result) | |
1561 | { | |
1562 | /* We need to insert a indirect ref for param decls. */ | |
1563 | if (sym->ts.u.cl->backend_decl | |
1564 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1565 | { |
1566 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
a4731200 | 1567 | sym->ts.u.cl->backend_decl = |
d1b1479f | 1568 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
a4731200 | 1569 | } |
ddcfeaf1 | 1570 | } |
d1b1479f | 1571 | /* For all other parameters make sure, that they are copied so |
1572 | that the value and any modifications are local to the routine | |
1573 | by generating a temporary variable. */ | |
1574 | else if (sym->attr.function | |
1575 | && sym->ts.u.cl->passed_length == NULL | |
1576 | && sym->ts.u.cl->backend_decl) | |
1577 | { | |
1578 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1579 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1580 | sym->ts.u.cl->backend_decl | |
1581 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1582 | else | |
a4731200 | 1583 | sym->ts.u.cl->backend_decl = NULL_TREE; |
d1b1479f | 1584 | } |
617125a6 | 1585 | } |
1586 | ||
eeebe20b | 1587 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1588 | length = gfc_create_string_length (sym); |
1589 | else | |
eeebe20b | 1590 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 1591 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1592 | { |
d95efb59 | 1593 | /* Add the string length to the same context as the symbol. */ |
7b60c131 | 1594 | if (DECL_CONTEXT (length) == NULL_TREE) |
1595 | { | |
1596 | if (DECL_CONTEXT (sym->backend_decl) | |
1597 | == current_function_decl) | |
1598 | gfc_add_decl_to_function (length); | |
1599 | else | |
1600 | gfc_add_decl_to_parent_function (length); | |
1601 | } | |
d95efb59 | 1602 | |
7b60c131 | 1603 | gcc_assert (DECL_CONTEXT (sym->backend_decl) |
1604 | == DECL_CONTEXT (length)); | |
d95efb59 | 1605 | |
d4163395 | 1606 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1607 | } |
4ee9c684 | 1608 | } |
1609 | ||
1610 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1611 | if ((sym->attr.dimension || sym->attr.codimension) |
1612 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1613 | { |
d95efb59 | 1614 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1615 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1616 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1617 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1618 | sym->backend_decl = decl; | |
4ee9c684 | 1619 | } |
1620 | ||
c6793847 | 1621 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1622 | some caller is expecting an expression to apply the component refs to. | |
1623 | Therefore the descriptor is only created and stored in | |
1624 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1625 | responsible to extract it from there, when the descriptor is | |
1626 | desired. */ | |
1627 | if (IS_CLASS_ARRAY (sym) | |
1628 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1629 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1630 | { | |
1631 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1632 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1633 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1634 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1635 | sym->backend_decl = decl; | |
1636 | } | |
1637 | ||
4ee9c684 | 1638 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1639 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1640 | { | |
1641 | gfc_add_assign_aux_vars (sym); | |
1642 | } | |
9579733e | 1643 | |
fd23cc08 | 1644 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1645 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1646 | ||
fd23cc08 | 1647 | return sym->backend_decl; |
4ee9c684 | 1648 | } |
1649 | ||
1650 | if (sym->backend_decl) | |
1651 | return sym->backend_decl; | |
1652 | ||
a25debd0 | 1653 | /* Special case for array-valued named constants from intrinsic |
1654 | procedures; those are inlined. */ | |
d566c3e0 | 1655 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1656 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1657 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1658 | intrinsic_array_parameter = true; |
1659 | ||
044bbd71 | 1660 | /* If use associated compilation, use the module |
094bca96 | 1661 | declaration. */ |
044bbd71 | 1662 | if ((sym->attr.flavor == FL_VARIABLE |
1663 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1664 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1665 | && !intrinsic_array_parameter |
1666 | && sym->module | |
1667 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1668 | { |
1669 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1670 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1671 | return sym->backend_decl; | |
1672 | } | |
7ea64434 | 1673 | |
4ee9c684 | 1674 | if (sym->attr.flavor == FL_PROCEDURE) |
1675 | { | |
77d080ca | 1676 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1677 | procedure pointers and procptr initialization targets. */ |
1650ce2f | 1678 | if (sym->attr.use_assoc |
1679 | || sym->attr.used_in_submodule | |
1680 | || sym->attr.intrinsic | |
77d080ca | 1681 | || sym->attr.if_source != IFSRC_DECL) |
802532b9 | 1682 | { |
1683 | decl = gfc_get_extern_function_decl (sym); | |
1684 | gfc_set_decl_location (decl, &sym->declared_at); | |
1685 | } | |
1686 | else | |
1687 | { | |
1688 | if (!sym->backend_decl) | |
1689 | build_function_decl (sym, false); | |
1690 | decl = sym->backend_decl; | |
1691 | } | |
4ee9c684 | 1692 | return decl; |
1693 | } | |
1694 | ||
1695 | if (sym->attr.intrinsic) | |
382ad5c3 | 1696 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1697 | |
1698 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1699 | type declaration. For associate names, the target character |
1700 | length is used. Set 'length' to a constant so that if the | |
8b7e5587 | 1701 | string length is a variable, it is not finished a second time. */ |
4ee9c684 | 1702 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1703 | { |
bb2fe503 | 1704 | if (sym->attr.associate_var |
1705 | && sym->ts.deferred | |
1706 | && sym->assoc && sym->assoc->target | |
1707 | && ((sym->assoc->target->expr_type == EXPR_VARIABLE | |
1708 | && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER) | |
ef718f2c | 1709 | || sym->assoc->target->expr_type != EXPR_VARIABLE)) |
bb2fe503 | 1710 | sym->ts.u.cl->backend_decl = NULL_TREE; |
1711 | ||
c3639856 | 1712 | if (sym->attr.associate_var |
1713 | && sym->ts.u.cl->backend_decl | |
ef718f2c | 1714 | && (VAR_P (sym->ts.u.cl->backend_decl) |
1715 | || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)) | |
c3639856 | 1716 | length = gfc_index_zero_node; |
1717 | else | |
1718 | length = gfc_create_string_length (sym); | |
1719 | } | |
4ee9c684 | 1720 | |
1721 | /* Create the decl for the variable. */ | |
e60a6f7b | 1722 | decl = build_decl (sym->declared_at.lb->location, |
1723 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1724 | |
1236e28b | 1725 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1726 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1727 | decl_attributes (&decl, attributes, 0); | |
1728 | ||
f888a3fb | 1729 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1730 | This is done here rather than in gfc_finish_var_decl because it |
1731 | is different for string length variables. */ | |
8b7e5587 | 1732 | if (sym->module || sym->fn_result_spec) |
df4d540f | 1733 | { |
1236e28b | 1734 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1735 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1736 | DECL_IGNORED_P (decl) = 1; |
1737 | } | |
4ee9c684 | 1738 | |
bc5663df | 1739 | if (sym->attr.select_type_temporary) |
1740 | { | |
1741 | DECL_ARTIFICIAL (decl) = 1; | |
1742 | DECL_IGNORED_P (decl) = 1; | |
1743 | } | |
1744 | ||
7a777e43 | 1745 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1746 | { |
1747 | /* Create variables to hold the non-constant bits of array info. */ | |
1748 | gfc_build_qualified_array (decl, sym); | |
1749 | ||
b3c3927c | 1750 | if (sym->attr.contiguous |
1751 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1752 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1753 | } | |
1754 | ||
0a96a7cc | 1755 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1756 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1757 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1758 | (CLASS_DATA (sym)->attr.dimension |
1759 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1760 | || (sym->ts.type == BT_DERIVED |
1761 | && (sym->ts.u.derived->attr.alloc_comp | |
1762 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1763 | && !sym->ns->proc_name->attr.is_main_program | |
1764 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1765 | /* This applies a derived type default initializer. */ |
1766 | || (sym->ts.type == BT_DERIVED | |
1767 | && sym->attr.save == SAVE_NONE | |
1768 | && !sym->attr.data | |
1769 | && !sym->attr.allocatable | |
1770 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1771 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1772 | gfc_defer_symbol_init (sym); |
2294b616 | 1773 | |
9fe80e30 | 1774 | if (sym->ts.type == BT_CHARACTER |
1775 | && sym->attr.allocatable | |
1776 | && !sym->attr.dimension | |
1777 | && sym->ts.u.cl && sym->ts.u.cl->length | |
1778 | && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE) | |
1779 | gfc_defer_symbol_init (sym); | |
1780 | ||
4d8caf18 | 1781 | /* Associate names can use the hidden string length variable |
1782 | of their associated target. */ | |
1783 | if (sym->ts.type == BT_CHARACTER | |
cfd8c4eb | 1784 | && TREE_CODE (length) != INTEGER_CST |
1785 | && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF) | |
4d8caf18 | 1786 | { |
dc9b31b5 | 1787 | length = fold_convert (gfc_charlen_type_node, length); |
4d8caf18 | 1788 | gfc_finish_var_decl (length, sym); |
2d9b55b8 | 1789 | if (!sym->attr.associate_var |
1790 | && TREE_CODE (length) == VAR_DECL | |
da6baba7 | 1791 | && sym->value && sym->value->expr_type != EXPR_NULL |
1792 | && sym->value->ts.u.cl->length) | |
2d9b55b8 | 1793 | { |
1794 | gfc_expr *len = sym->value->ts.u.cl->length; | |
1795 | DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts, | |
1796 | TREE_TYPE (length), | |
1797 | false, false, false); | |
dc9b31b5 | 1798 | DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node, |
1799 | DECL_INITIAL (length)); | |
2d9b55b8 | 1800 | } |
1801 | else | |
da6baba7 | 1802 | gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL); |
4d8caf18 | 1803 | } |
1804 | ||
4ee9c684 | 1805 | gfc_finish_var_decl (decl, sym); |
1806 | ||
bda1f152 | 1807 | if (sym->ts.type == BT_CHARACTER) |
4d8caf18 | 1808 | /* Character variables need special handling. */ |
1809 | gfc_allocate_lang_decl (decl); | |
1033248c | 1810 | |
47e6a59a | 1811 | if (sym->assoc && sym->attr.subref_array_pointer) |
1812 | sym->attr.pointer = 1; | |
1813 | ||
1814 | if (sym->attr.pointer && sym->attr.dimension | |
1815 | && !sym->ts.deferred | |
1816 | && !(sym->attr.select_type_temporary | |
1817 | && !sym->attr.subref_array_pointer)) | |
1818 | GFC_DECL_PTR_ARRAY_P (decl) = 1; | |
1033248c | 1819 | |
fd23cc08 | 1820 | if (sym->ts.type == BT_CLASS) |
47e6a59a | 1821 | GFC_DECL_CLASS(decl) = 1; |
fd23cc08 | 1822 | |
4ee9c684 | 1823 | sym->backend_decl = decl; |
1824 | ||
c8f1568f | 1825 | if (sym->attr.assign) |
21ebda4d | 1826 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1827 | |
cd2c99b8 | 1828 | if (intrinsic_array_parameter) |
1829 | { | |
1830 | TREE_STATIC (decl) = 1; | |
1831 | DECL_EXTERNAL (decl) = 0; | |
1832 | } | |
1833 | ||
1834 | if (TREE_STATIC (decl) | |
1835 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1836 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
14eab729 | 1837 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
a961ca30 | 1838 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1839 | && (flag_coarray != GFC_FCOARRAY_LIB |
f0efd2e8 | 1840 | || !sym->attr.codimension || sym->attr.allocatable) |
1841 | && !(sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
1842 | && !(sym->ts.type == BT_CLASS | |
1843 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type)) | |
a545a8f8 | 1844 | { |
1845 | /* Add static initializer. For procedures, it is only needed if | |
1846 | SAVE is specified otherwise they need to be reinitialized | |
1847 | every time the procedure is entered. The TREE_STATIC is | |
1848 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1849 | |
bda1f152 | 1850 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1851 | TREE_TYPE (decl), sym->attr.dimension |
1852 | || (sym->attr.codimension | |
1853 | && sym->attr.allocatable), | |
1854 | sym->attr.pointer || sym->attr.allocatable | |
1855 | || sym->ts.type == BT_CLASS, | |
1856 | sym->attr.proc_pointer); | |
bda1f152 | 1857 | } |
1858 | ||
9579733e | 1859 | if (!TREE_STATIC (decl) |
1860 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1861 | && !sym->attr.pointer | |
1862 | && !sym->attr.allocatable | |
bc5663df | 1863 | && !sym->attr.proc_pointer |
1864 | && !sym->attr.select_type_temporary) | |
9579733e | 1865 | DECL_BY_REFERENCE (decl) = 1; |
1866 | ||
cf5f881f | 1867 | if (sym->attr.associate_var) |
1868 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1869 | ||
ebad7c3e | 1870 | if (sym->attr.vtab |
ea9e8242 | 1871 | || (sym->name[0] == '_' && gfc_str_startswith (sym->name, "__def_init"))) |
4c197fd0 | 1872 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1873 | |
4ee9c684 | 1874 | return decl; |
1875 | } | |
1876 | ||
1877 | ||
dbe60343 | 1878 | /* Substitute a temporary variable in place of the real one. */ |
1879 | ||
1880 | void | |
1881 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1882 | { | |
1883 | save->attr = sym->attr; | |
1884 | save->decl = sym->backend_decl; | |
1885 | ||
1886 | gfc_clear_attr (&sym->attr); | |
1887 | sym->attr.referenced = 1; | |
1888 | sym->attr.flavor = FL_VARIABLE; | |
1889 | ||
1890 | sym->backend_decl = decl; | |
1891 | } | |
1892 | ||
1893 | ||
1894 | /* Restore the original variable. */ | |
1895 | ||
1896 | void | |
1897 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1898 | { | |
1899 | sym->attr = save->attr; | |
1900 | sym->backend_decl = save->decl; | |
1901 | } | |
1902 | ||
1903 | ||
cad0ddcf | 1904 | /* Declare a procedure pointer. */ |
1905 | ||
1906 | static tree | |
1907 | get_proc_pointer_decl (gfc_symbol *sym) | |
1908 | { | |
1909 | tree decl; | |
36b0a1b0 | 1910 | tree attributes; |
cad0ddcf | 1911 | |
1912 | decl = sym->backend_decl; | |
1913 | if (decl) | |
1914 | return decl; | |
1915 | ||
e60a6f7b | 1916 | decl = build_decl (input_location, |
1917 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1918 | build_pointer_type (gfc_get_function_type (sym))); |
1919 | ||
ea6f8461 | 1920 | if (sym->module) |
1921 | { | |
1922 | /* Apply name mangling. */ | |
1923 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1924 | if (sym->attr.use_assoc) | |
1925 | DECL_IGNORED_P (decl) = 1; | |
1926 | } | |
a90fe829 | 1927 | |
e72f979a | 1928 | if ((sym->ns->proc_name |
1929 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1930 | || sym->attr.contained) |
1931 | gfc_add_decl_to_function (decl); | |
cf269acc | 1932 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1933 | gfc_add_decl_to_parent_function (decl); |
1934 | ||
1935 | sym->backend_decl = decl; | |
1936 | ||
cf269acc | 1937 | /* If a variable is USE associated, it's always external. */ |
1938 | if (sym->attr.use_assoc) | |
1939 | { | |
1940 | DECL_EXTERNAL (decl) = 1; | |
1941 | TREE_PUBLIC (decl) = 1; | |
1942 | } | |
1943 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1944 | { | |
1945 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1946 | TREE_PUBLIC (decl) = 1; |
1947 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1948 | { | |
1949 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1950 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1951 | } | |
cf269acc | 1952 | TREE_STATIC (decl) = 1; |
1953 | } | |
1954 | ||
cad0ddcf | 1955 | if (!sym->attr.use_assoc |
1956 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1957 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1958 | TREE_STATIC (decl) = 1; | |
1959 | ||
1960 | if (TREE_STATIC (decl) && sym->value) | |
1961 | { | |
1962 | /* Add static initializer. */ | |
1963 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1964 | TREE_TYPE (decl), |
1965 | sym->attr.dimension, | |
1966 | false, true); | |
cad0ddcf | 1967 | } |
1968 | ||
8fb1768c | 1969 | /* Handle threadprivate procedure pointers. */ |
1970 | if (sym->attr.threadprivate | |
1971 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1972 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1973 | |
36b0a1b0 | 1974 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1975 | decl_attributes (&decl, attributes, 0); | |
1976 | ||
cad0ddcf | 1977 | return decl; |
1978 | } | |
1979 | ||
1980 | ||
4ee9c684 | 1981 | /* Get a basic decl for an external function. */ |
1982 | ||
1983 | tree | |
d50eaffb | 1984 | gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args) |
4ee9c684 | 1985 | { |
1986 | tree type; | |
1987 | tree fndecl; | |
36b0a1b0 | 1988 | tree attributes; |
4ee9c684 | 1989 | gfc_expr e; |
1990 | gfc_intrinsic_sym *isym; | |
1991 | gfc_expr argexpr; | |
17000b91 | 1992 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1993 | tree name; |
1994 | tree mangled_name; | |
83aeedb9 | 1995 | gfc_gsymbol *gsym; |
4ee9c684 | 1996 | |
1997 | if (sym->backend_decl) | |
1998 | return sym->backend_decl; | |
1999 | ||
1b716045 | 2000 | /* We should never be creating external decls for alternate entry points. |
2001 | The procedure may be an alternate entry point, but we don't want/need | |
2002 | to know that. */ | |
22d678e8 | 2003 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 2004 | |
cad0ddcf | 2005 | if (sym->attr.proc_pointer) |
2006 | return get_proc_pointer_decl (sym); | |
2007 | ||
83aeedb9 | 2008 | /* See if this is an external procedure from the same file. If so, |
8e8898b2 | 2009 | return the backend_decl. If we are looking at a BIND(C) |
2010 | procedure and the symbol is not BIND(C), or vice versa, we | |
2011 | haven't found the right procedure. */ | |
2012 | ||
2013 | if (sym->binding_label) | |
2014 | { | |
2015 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label); | |
2016 | if (gsym && !gsym->bind_c) | |
2017 | gsym = NULL; | |
2018 | } | |
2019 | else | |
2020 | { | |
2021 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name); | |
2022 | if (gsym && gsym->bind_c) | |
2023 | gsym = NULL; | |
2024 | } | |
83aeedb9 | 2025 | |
c8b913ab | 2026 | if (gsym && !gsym->defined) |
2027 | gsym = NULL; | |
2028 | ||
2029 | /* This can happen because of C binding. */ | |
2030 | if (gsym && gsym->ns && gsym->ns->proc_name | |
2031 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
2032 | goto module_sym; | |
2033 | ||
044bbd71 | 2034 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
2035 | && !sym->backend_decl | |
2036 | && gsym && gsym->ns | |
2037 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
2038 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 2039 | { |
d896f9b3 | 2040 | if (!gsym->ns->proc_name->backend_decl) |
2041 | { | |
2042 | /* By construction, the external function cannot be | |
2043 | a contained procedure. */ | |
2044 | locus old_loc; | |
d896f9b3 | 2045 | |
4671339c | 2046 | gfc_save_backend_locus (&old_loc); |
9078126c | 2047 | push_cfun (NULL); |
d896f9b3 | 2048 | |
2049 | gfc_create_function_decl (gsym->ns, true); | |
2050 | ||
2051 | pop_cfun (); | |
4671339c | 2052 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 2053 | } |
2054 | ||
83aeedb9 | 2055 | /* If the namespace has entries, the proc_name is the |
2056 | entry master. Find the entry and use its backend_decl. | |
2057 | otherwise, use the proc_name backend_decl. */ | |
2058 | if (gsym->ns->entries) | |
2059 | { | |
2060 | gfc_entry_list *entry = gsym->ns->entries; | |
2061 | ||
2062 | for (; entry; entry = entry->next) | |
2063 | { | |
2064 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
2065 | { | |
2066 | sym->backend_decl = entry->sym->backend_decl; | |
2067 | break; | |
2068 | } | |
2069 | } | |
2070 | } | |
2071 | else | |
40c74b02 | 2072 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 2073 | |
2074 | if (sym->backend_decl) | |
40c74b02 | 2075 | { |
2076 | /* Avoid problems of double deallocation of the backend declaration | |
2077 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2078 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2079 | sym->attr.use_assoc = 0; | |
2080 | ||
2081 | return sym->backend_decl; | |
2082 | } | |
83aeedb9 | 2083 | } |
2084 | ||
7ea64434 | 2085 | /* See if this is a module procedure from the same file. If so, |
2086 | return the backend_decl. */ | |
2087 | if (sym->module) | |
2088 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2089 | ||
c8b913ab | 2090 | module_sym: |
2091 | if (gsym && gsym->ns | |
2092 | && (gsym->type == GSYM_MODULE | |
2093 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 2094 | { |
2095 | gfc_symbol *s; | |
2096 | ||
2097 | s = NULL; | |
c8b913ab | 2098 | if (gsym->type == GSYM_MODULE) |
2099 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2100 | else | |
2101 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2102 | ||
7ea64434 | 2103 | if (s && s->backend_decl) |
2104 | { | |
85ec2f13 | 2105 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2106 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2107 | true); | |
2108 | else if (sym->ts.type == BT_CHARACTER) | |
2109 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 2110 | sym->backend_decl = s->backend_decl; |
2111 | return sym->backend_decl; | |
2112 | } | |
2113 | } | |
2114 | ||
4ee9c684 | 2115 | if (sym->attr.intrinsic) |
2116 | { | |
2117 | /* Call the resolution function to get the actual name. This is | |
2118 | a nasty hack which relies on the resolution functions only looking | |
2119 | at the first argument. We pass NULL for the second argument | |
2120 | otherwise things like AINT get confused. */ | |
2121 | isym = gfc_find_function (sym->name); | |
22d678e8 | 2122 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 2123 | |
2124 | memset (&e, 0, sizeof (e)); | |
2125 | e.expr_type = EXPR_FUNCTION; | |
2126 | ||
2127 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 2128 | gcc_assert (isym->formal); |
4ee9c684 | 2129 | argexpr.ts = isym->formal->ts; |
2130 | ||
2131 | if (isym->formal->next == NULL) | |
2132 | isym->resolve.f1 (&e, &argexpr); | |
2133 | else | |
2134 | { | |
37e0271a | 2135 | if (isym->formal->next->next == NULL) |
2136 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2137 | else | |
2138 | { | |
7fe55cc9 | 2139 | if (isym->formal->next->next->next == NULL) |
2140 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2141 | else | |
2142 | { | |
2143 | /* All specific intrinsics take less than 5 arguments. */ | |
2144 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2145 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2146 | } | |
37e0271a | 2147 | } |
4ee9c684 | 2148 | } |
bdaed7d2 | 2149 | |
829d7a08 | 2150 | if (flag_f2c |
bdaed7d2 | 2151 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2152 | || e.ts.type == BT_COMPLEX)) | |
2153 | { | |
2154 | /* Specific which needs a different implementation if f2c | |
2155 | calling conventions are used. */ | |
17000b91 | 2156 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 2157 | } |
2158 | else | |
17000b91 | 2159 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 2160 | |
4ee9c684 | 2161 | name = get_identifier (s); |
2162 | mangled_name = name; | |
2163 | } | |
2164 | else | |
2165 | { | |
2166 | name = gfc_sym_identifier (sym); | |
2167 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2168 | } | |
2169 | ||
d50eaffb | 2170 | type = gfc_get_function_type (sym, actual_args); |
e60a6f7b | 2171 | fndecl = build_decl (input_location, |
2172 | FUNCTION_DECL, name, type); | |
4ee9c684 | 2173 | |
e27454ee | 2174 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2175 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2176 | the opposite of declaring a function as static in C). */ |
e27454ee | 2177 | DECL_EXTERNAL (fndecl) = 1; |
2178 | TREE_PUBLIC (fndecl) = 1; | |
2179 | ||
1236e28b | 2180 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2181 | decl_attributes (&fndecl, attributes, 0); | |
2182 | ||
2183 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2184 | |
2185 | /* Set the context of this decl. */ | |
2186 | if (0 && sym->ns && sym->ns->proc_name) | |
2187 | { | |
2188 | /* TODO: Add external decls to the appropriate scope. */ | |
2189 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2190 | } | |
2191 | else | |
2192 | { | |
f888a3fb | 2193 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2194 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2195 | } | |
2196 | ||
4ee9c684 | 2197 | /* Set attributes for PURE functions. A call to PURE function in the |
2198 | Fortran 95 sense is both pure and without side effects in the C | |
2199 | sense. */ | |
bead0399 | 2200 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2201 | { |
4d4b9f0e | 2202 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2203 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2204 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2205 | parameters and don't use alternate returns (is this | |
2206 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2207 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2208 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2209 | } |
2210 | ||
6e27d773 | 2211 | /* Mark non-returning functions. */ |
2212 | if (sym->attr.noreturn) | |
2213 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2214 | ||
4ee9c684 | 2215 | sym->backend_decl = fndecl; |
2216 | ||
2217 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2218 | pushdecl_top_level (fndecl); | |
2219 | ||
15b28553 | 2220 | if (sym->formal_ns |
2221 | && sym->formal_ns->proc_name == sym | |
2222 | && sym->formal_ns->omp_declare_simd) | |
2223 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2224 | ||
4ee9c684 | 2225 | return fndecl; |
2226 | } | |
2227 | ||
2228 | ||
2229 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2230 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2231 | a master function with alternate entry points. */ | |
4ee9c684 | 2232 | |
1b716045 | 2233 | static void |
d896f9b3 | 2234 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2235 | { |
36b0a1b0 | 2236 | tree fndecl, type, attributes; |
4ee9c684 | 2237 | symbol_attribute attr; |
1b716045 | 2238 | tree result_decl; |
4ee9c684 | 2239 | gfc_formal_arglist *f; |
2240 | ||
76e207a9 | 2241 | bool module_procedure = sym->attr.module_procedure |
2242 | && sym->ns | |
2243 | && sym->ns->proc_name | |
2244 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2245 | ||
2246 | gcc_assert (!sym->attr.external || module_procedure); | |
4ee9c684 | 2247 | |
802532b9 | 2248 | if (sym->backend_decl) |
2249 | return; | |
2250 | ||
b31f705b | 2251 | /* Set the line and filename. sym->declared_at seems to point to the |
2252 | last statement for subroutines, but it'll do for now. */ | |
2253 | gfc_set_backend_locus (&sym->declared_at); | |
2254 | ||
4ee9c684 | 2255 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2256 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2257 | || DECL_FILE_SCOPE_P (current_function_decl) |
2258 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2259 | == NAMESPACE_DECL)); | |
4ee9c684 | 2260 | |
2261 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2262 | fndecl = build_decl (input_location, |
2263 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2264 | |
1236e28b | 2265 | attr = sym->attr; |
2266 | ||
e27454ee | 2267 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2268 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2269 | the opposite of declaring a function as static in C). */ |
e27454ee | 2270 | DECL_EXTERNAL (fndecl) = 0; |
2271 | ||
7d6b5754 | 2272 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2273 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2274 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2275 | && flag_module_private))) |
7d6b5754 | 2276 | sym->attr.access = ACCESS_PRIVATE; |
2277 | ||
e27454ee | 2278 | if (!current_function_decl |
c5cb468c | 2279 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2280 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2281 | || sym->attr.public_used)) | |
e27454ee | 2282 | TREE_PUBLIC (fndecl) = 1; |
2283 | ||
9e45357a | 2284 | if (sym->attr.referenced || sym->attr.entry_master) |
2285 | TREE_USED (fndecl) = 1; | |
2286 | ||
1236e28b | 2287 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2288 | decl_attributes (&fndecl, attributes, 0); | |
2289 | ||
4ee9c684 | 2290 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2291 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2292 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2293 | result_decl = NULL_TREE; |
2294 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2295 | if (attr.function) | |
2296 | { | |
2297 | if (gfc_return_by_reference (sym)) | |
2298 | type = void_type_node; | |
2299 | else | |
2300 | { | |
2301 | if (sym->result != sym) | |
2302 | result_decl = gfc_sym_identifier (sym->result); | |
2303 | ||
2304 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2305 | } | |
2306 | } | |
2307 | else | |
2308 | { | |
2309 | /* Look for alternate return placeholders. */ | |
2310 | int has_alternate_returns = 0; | |
6777213b | 2311 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2312 | { |
2313 | if (f->sym == NULL) | |
2314 | { | |
2315 | has_alternate_returns = 1; | |
2316 | break; | |
2317 | } | |
2318 | } | |
2319 | ||
2320 | if (has_alternate_returns) | |
2321 | type = integer_type_node; | |
2322 | else | |
2323 | type = void_type_node; | |
2324 | } | |
2325 | ||
e60a6f7b | 2326 | result_decl = build_decl (input_location, |
2327 | RESULT_DECL, result_decl, type); | |
540edea7 | 2328 | DECL_ARTIFICIAL (result_decl) = 1; |
2329 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2330 | DECL_CONTEXT (result_decl) = fndecl; |
2331 | DECL_RESULT (fndecl) = result_decl; | |
2332 | ||
2333 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2334 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2335 | |
4ee9c684 | 2336 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2337 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2338 | |
f888a3fb | 2339 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2340 | Fortran 95 sense is both pure and without side effects in the C |
2341 | sense. */ | |
bead0399 | 2342 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2343 | { |
be393645 | 2344 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2345 | including an alternate return. In that case it can also be |
231e961a | 2346 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2347 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2348 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2349 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2350 | } | |
2351 | ||
36b0a1b0 | 2352 | |
4ee9c684 | 2353 | /* Layout the function declaration and put it in the binding level |
2354 | of the current function. */ | |
d896f9b3 | 2355 | |
4c197fd0 | 2356 | if (global) |
d896f9b3 | 2357 | pushdecl_top_level (fndecl); |
2358 | else | |
2359 | pushdecl (fndecl); | |
1b716045 | 2360 | |
16a40513 | 2361 | /* Perform name mangling if this is a top level or module procedure. */ |
2362 | if (current_function_decl == NULL_TREE) | |
2363 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2364 | ||
1b716045 | 2365 | sym->backend_decl = fndecl; |
2366 | } | |
2367 | ||
2368 | ||
2369 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2370 | ||
2371 | static void | |
2372 | create_function_arglist (gfc_symbol * sym) | |
2373 | { | |
2374 | tree fndecl; | |
2375 | gfc_formal_arglist *f; | |
d4163395 | 2376 | tree typelist, hidden_typelist; |
2377 | tree arglist, hidden_arglist; | |
1b716045 | 2378 | tree type; |
2379 | tree parm; | |
2380 | ||
2381 | fndecl = sym->backend_decl; | |
2382 | ||
e4b2c26c | 2383 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2384 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2385 | arglist = NULL_TREE; |
d4163395 | 2386 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2387 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2388 | |
2389 | if (sym->attr.entry_master) | |
2390 | { | |
2391 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2392 | parm = build_decl (input_location, |
2393 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2394 | |
1b716045 | 2395 | DECL_CONTEXT (parm) = fndecl; |
2396 | DECL_ARG_TYPE (parm) = type; | |
2397 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2398 | gfc_finish_decl (parm); |
d95efb59 | 2399 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2400 | |
2401 | arglist = chainon (arglist, parm); | |
2402 | typelist = TREE_CHAIN (typelist); | |
2403 | } | |
2404 | ||
e4b2c26c | 2405 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2406 | { |
d4163395 | 2407 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2408 | |
e4b2c26c | 2409 | if (sym->ts.type == BT_CHARACTER) |
2410 | { | |
e4b2c26c | 2411 | /* Length of character result. */ |
d4163395 | 2412 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2413 | |
e60a6f7b | 2414 | length = build_decl (input_location, |
2415 | PARM_DECL, | |
e4b2c26c | 2416 | get_identifier (".__result"), |
d4163395 | 2417 | len_type); |
b345a09f | 2418 | if (POINTER_TYPE_P (len_type)) |
2419 | { | |
2420 | sym->ts.u.cl->passed_length = length; | |
2421 | TREE_USED (length) = 1; | |
2422 | } | |
2423 | else if (!sym->ts.u.cl->length) | |
e4b2c26c | 2424 | { |
eeebe20b | 2425 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2426 | TREE_USED (length) = 1; |
4ee9c684 | 2427 | } |
22d678e8 | 2428 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2429 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2430 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2431 | TREE_READONLY (length) = 1; |
b5b40b3f | 2432 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2433 | gfc_finish_decl (length); |
eeebe20b | 2434 | if (sym->ts.u.cl->backend_decl == NULL |
2435 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2436 | { |
2437 | gfc_symbol *arg; | |
2438 | tree backend_decl; | |
4ee9c684 | 2439 | |
eeebe20b | 2440 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2441 | { |
e60a6f7b | 2442 | tree len = build_decl (input_location, |
2443 | VAR_DECL, | |
d4163395 | 2444 | get_identifier ("..__result"), |
2445 | gfc_charlen_type_node); | |
2446 | DECL_ARTIFICIAL (len) = 1; | |
2447 | TREE_USED (len) = 1; | |
eeebe20b | 2448 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2449 | } |
4ee9c684 | 2450 | |
d4163395 | 2451 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2452 | arg = sym->result ? sym->result : sym; | |
2453 | backend_decl = arg->backend_decl; | |
2454 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2455 | type. */ | |
2456 | arg->backend_decl = NULL; | |
2457 | type = gfc_sym_type (arg); | |
2458 | arg->backend_decl = backend_decl; | |
2459 | type = build_reference_type (type); | |
2460 | } | |
2461 | } | |
4ee9c684 | 2462 | |
e60a6f7b | 2463 | parm = build_decl (input_location, |
2464 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2465 | |
d4163395 | 2466 | DECL_CONTEXT (parm) = fndecl; |
2467 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2468 | TREE_READONLY (parm) = 1; | |
2469 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2470 | gfc_finish_decl (parm); |
4ee9c684 | 2471 | |
d4163395 | 2472 | arglist = chainon (arglist, parm); |
2473 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2474 | |
d4163395 | 2475 | if (sym->ts.type == BT_CHARACTER) |
2476 | { | |
2477 | gfc_allocate_lang_decl (parm); | |
2478 | arglist = chainon (arglist, length); | |
e4b2c26c | 2479 | typelist = TREE_CHAIN (typelist); |
2480 | } | |
2481 | } | |
4ee9c684 | 2482 | |
d4163395 | 2483 | hidden_typelist = typelist; |
6777213b | 2484 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2485 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2486 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2487 | ||
6777213b | 2488 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2489 | { |
2490 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2491 | |
e4b2c26c | 2492 | /* Ignore alternate returns. */ |
2493 | if (f->sym == NULL) | |
2494 | continue; | |
4ee9c684 | 2495 | |
e4b2c26c | 2496 | type = TREE_VALUE (typelist); |
4ee9c684 | 2497 | |
296db1d1 | 2498 | if (f->sym->ts.type == BT_CHARACTER |
2499 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2500 | { |
2501 | tree len_type = TREE_VALUE (hidden_typelist); | |
2502 | tree length = NULL_TREE; | |
617125a6 | 2503 | if (!f->sym->ts.deferred) |
2504 | gcc_assert (len_type == gfc_charlen_type_node); | |
2505 | else | |
2506 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2507 | |
2508 | strcpy (&name[1], f->sym->name); | |
2509 | name[0] = '_'; | |
e60a6f7b | 2510 | length = build_decl (input_location, |
2511 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2512 | |
d4163395 | 2513 | hidden_arglist = chainon (hidden_arglist, length); |
2514 | DECL_CONTEXT (length) = fndecl; | |
2515 | DECL_ARTIFICIAL (length) = 1; | |
2516 | DECL_ARG_TYPE (length) = len_type; | |
2517 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2518 | gfc_finish_decl (length); |
a4ba5c3e | 2519 | |
2520 | /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead | |
2521 | to tail calls being disabled. Only do that if we | |
2522 | potentially have broken callers. */ | |
d7233bac | 2523 | if (flag_tail_call_workaround |
2524 | && f->sym->ts.u.cl | |
1fc5e56f | 2525 | && f->sym->ts.u.cl->length |
d7233bac | 2526 | && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT |
2527 | && (flag_tail_call_workaround == 2 | |
2528 | || f->sym->ns->implicit_interface_calls)) | |
1fc5e56f | 2529 | DECL_HIDDEN_STRING_LENGTH (length) = 1; |
4ee9c684 | 2530 | |
a4abf8a0 | 2531 | /* Remember the passed value. */ |
a90fe829 | 2532 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2533 | { |
2534 | /* This can happen if the same type is used for multiple | |
2535 | arguments. We need to copy cl as otherwise | |
2536 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2537 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2538 | } |
eeebe20b | 2539 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2540 | |
d4163395 | 2541 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2542 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2543 | { |
d4163395 | 2544 | TREE_USED (length) = 1; |
eeebe20b | 2545 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2546 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2547 | } |
2548 | ||
2549 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2550 | ||
eeebe20b | 2551 | if (f->sym->ts.u.cl->backend_decl == NULL |
2552 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2553 | { |
ddcfeaf1 | 2554 | if (POINTER_TYPE_P (len_type)) |
2555 | f->sym->ts.u.cl->backend_decl = | |
2556 | build_fold_indirect_ref_loc (input_location, length); | |
2557 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2558 | gfc_create_string_length (f->sym); |
2559 | ||
2560 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2561 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2562 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2563 | else | |
2564 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2565 | } |
4ee9c684 | 2566 | } |
532c2d79 | 2567 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2568 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2569 | Thus, we will use a hidden argument in that case. */ |
2570 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2571 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
d7cd448a | 2572 | && !gfc_bt_struct (f->sym->ts.type)) |
532c2d79 | 2573 | { |
2574 | tree tmp; | |
2575 | strcpy (&name[1], f->sym->name); | |
2576 | name[0] = '_'; | |
2577 | tmp = build_decl (input_location, | |
2578 | PARM_DECL, get_identifier (name), | |
2579 | boolean_type_node); | |
2580 | ||
2581 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2582 | DECL_CONTEXT (tmp) = fndecl; | |
2583 | DECL_ARTIFICIAL (tmp) = 1; | |
2584 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2585 | TREE_READONLY (tmp) = 1; | |
2586 | gfc_finish_decl (tmp); | |
2587 | } | |
4ee9c684 | 2588 | |
d4163395 | 2589 | /* For non-constant length array arguments, make sure they use |
2590 | a different type node from TYPE_ARG_TYPES type. */ | |
2591 | if (f->sym->attr.dimension | |
2592 | && type == TREE_VALUE (typelist) | |
2593 | && TREE_CODE (type) == POINTER_TYPE | |
2594 | && GFC_ARRAY_TYPE_P (type) | |
2595 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2596 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2597 | { | |
2598 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2599 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2600 | else | |
2601 | type = gfc_sym_type (f->sym); | |
2602 | } | |
2603 | ||
cad0ddcf | 2604 | if (f->sym->attr.proc_pointer) |
2605 | type = build_pointer_type (type); | |
2606 | ||
2364aa60 | 2607 | if (f->sym->attr.volatile_) |
2608 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2609 | ||
69b1505f | 2610 | /* Build the argument declaration. */ |
e60a6f7b | 2611 | parm = build_decl (input_location, |
2612 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2613 | |
2364aa60 | 2614 | if (f->sym->attr.volatile_) |
2615 | { | |
2616 | TREE_THIS_VOLATILE (parm) = 1; | |
2617 | TREE_SIDE_EFFECTS (parm) = 1; | |
2618 | } | |
2619 | ||
d4163395 | 2620 | /* Fill in arg stuff. */ |
2621 | DECL_CONTEXT (parm) = fndecl; | |
2622 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2623 | /* All implementation args except for VALUE are read-only. */ |
2624 | if (!f->sym->attr.value) | |
2625 | TREE_READONLY (parm) = 1; | |
98923a84 | 2626 | if (POINTER_TYPE_P (type) |
2627 | && (!f->sym->attr.proc_pointer | |
2628 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2629 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2630 | |
b9c7fce7 | 2631 | gfc_finish_decl (parm); |
cf5f881f | 2632 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2633 | |
2634 | f->sym->backend_decl = parm; | |
2635 | ||
7dce33fe | 2636 | /* Coarrays which are descriptorless or assumed-shape pass with |
2637 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2638 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2639 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2640 | && !f->sym->attr.allocatable) | |
2641 | || (f->sym->ts.type == BT_CLASS | |
2642 | && CLASS_DATA (f->sym)->attr.codimension | |
2643 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2644 | { |
2645 | tree caf_type; | |
2646 | tree token; | |
2647 | tree offset; | |
2648 | ||
2649 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2650 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2651 | caf_type = f->sym->ts.type == BT_CLASS |
2652 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2653 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2654 | |
85c94a64 | 2655 | token = build_decl (input_location, PARM_DECL, |
2656 | create_tmp_var_name ("caf_token"), | |
2657 | build_qualified_type (pvoid_type_node, | |
2658 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2659 | if ((f->sym->ts.type != BT_CLASS |
2660 | && f->sym->as->type != AS_DEFERRED) | |
2661 | || (f->sym->ts.type == BT_CLASS | |
2662 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2663 | { |
2664 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2665 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2666 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2667 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2668 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2669 | } | |
2670 | else | |
2671 | { | |
2672 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2673 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2674 | } | |
a90fe829 | 2675 | |
85c94a64 | 2676 | DECL_CONTEXT (token) = fndecl; |
2677 | DECL_ARTIFICIAL (token) = 1; | |
2678 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2679 | TREE_READONLY (token) = 1; | |
2680 | hidden_arglist = chainon (hidden_arglist, token); | |
2681 | gfc_finish_decl (token); | |
2682 | ||
85c94a64 | 2683 | offset = build_decl (input_location, PARM_DECL, |
2684 | create_tmp_var_name ("caf_offset"), | |
2685 | gfc_array_index_type); | |
2686 | ||
d44f2f7c | 2687 | if ((f->sym->ts.type != BT_CLASS |
2688 | && f->sym->as->type != AS_DEFERRED) | |
2689 | || (f->sym->ts.type == BT_CLASS | |
2690 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2691 | { |
2692 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2693 | == NULL_TREE); | |
2694 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2695 | } | |
2696 | else | |
2697 | { | |
2698 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2699 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2700 | } | |
85c94a64 | 2701 | DECL_CONTEXT (offset) = fndecl; |
2702 | DECL_ARTIFICIAL (offset) = 1; | |
2703 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2704 | TREE_READONLY (offset) = 1; | |
2705 | hidden_arglist = chainon (hidden_arglist, offset); | |
2706 | gfc_finish_decl (offset); | |
2707 | } | |
2708 | ||
d4163395 | 2709 | arglist = chainon (arglist, parm); |
e4b2c26c | 2710 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2711 | } |
e4b2c26c | 2712 | |
465e4a95 | 2713 | /* Add the hidden string length parameters, unless the procedure |
2714 | is bind(C). */ | |
2715 | if (!sym->attr.is_bind_c) | |
2716 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2717 | |
ebe27ea2 | 2718 | gcc_assert (hidden_typelist == NULL_TREE |
2719 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2720 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2721 | } |
e4b2c26c | 2722 | |
1b716045 | 2723 | /* Do the setup necessary before generating the body of a function. */ |
2724 | ||
2725 | static void | |
2726 | trans_function_start (gfc_symbol * sym) | |
2727 | { | |
2728 | tree fndecl; | |
2729 | ||
2730 | fndecl = sym->backend_decl; | |
2731 | ||
f888a3fb | 2732 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2733 | current_function_decl = fndecl; |
2734 | ||
f888a3fb | 2735 | /* Let the world know what we're about to do. */ |
1b716045 | 2736 | announce_function (fndecl); |
2737 | ||
16a40513 | 2738 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2739 | { |
f888a3fb | 2740 | /* Create RTL for function declaration. */ |
1b716045 | 2741 | rest_of_decl_compilation (fndecl, 1, 0); |
2742 | } | |
2743 | ||
f888a3fb | 2744 | /* Create RTL for function definition. */ |
1b716045 | 2745 | make_decl_rtl (fndecl); |
2746 | ||
00cf115c | 2747 | allocate_struct_function (fndecl, false); |
1b716045 | 2748 | |
f888a3fb | 2749 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2750 | pushlevel (); |
1b716045 | 2751 | } |
2752 | ||
2753 | /* Create thunks for alternate entry points. */ | |
2754 | ||
2755 | static void | |
d896f9b3 | 2756 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2757 | { |
2758 | gfc_formal_arglist *formal; | |
2759 | gfc_formal_arglist *thunk_formal; | |
2760 | gfc_entry_list *el; | |
2761 | gfc_symbol *thunk_sym; | |
2762 | stmtblock_t body; | |
2763 | tree thunk_fndecl; | |
1b716045 | 2764 | tree tmp; |
b31f705b | 2765 | locus old_loc; |
1b716045 | 2766 | |
2767 | /* This should always be a toplevel function. */ | |
22d678e8 | 2768 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2769 | |
4671339c | 2770 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2771 | for (el = ns->entries; el; el = el->next) |
2772 | { | |
f1f41a6c | 2773 | vec<tree, va_gc> *args = NULL; |
2774 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2775 | |
1b716045 | 2776 | thunk_sym = el->sym; |
a90fe829 | 2777 | |
d896f9b3 | 2778 | build_function_decl (thunk_sym, global); |
1b716045 | 2779 | create_function_arglist (thunk_sym); |
2780 | ||
2781 | trans_function_start (thunk_sym); | |
2782 | ||
2783 | thunk_fndecl = thunk_sym->backend_decl; | |
2784 | ||
e5004242 | 2785 | gfc_init_block (&body); |
1b716045 | 2786 | |
f888a3fb | 2787 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2788 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2789 | vec_safe_push (args, tmp); |
1b716045 | 2790 | |
c6871095 | 2791 | if (thunk_sym->attr.function) |
2792 | { | |
2793 | if (gfc_return_by_reference (ns->proc_name)) | |
2794 | { | |
2795 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2796 | vec_safe_push (args, ref); |
c6871095 | 2797 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2798 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2799 | } |
2800 | } | |
2801 | ||
6777213b | 2802 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2803 | formal = formal->next) | |
1b716045 | 2804 | { |
c6871095 | 2805 | /* Ignore alternate returns. */ |
2806 | if (formal->sym == NULL) | |
2807 | continue; | |
2808 | ||
1b716045 | 2809 | /* We don't have a clever way of identifying arguments, so resort to |
2810 | a brute-force search. */ | |
6777213b | 2811 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2812 | thunk_formal; |
2813 | thunk_formal = thunk_formal->next) | |
2814 | { | |
2815 | if (thunk_formal->sym == formal->sym) | |
2816 | break; | |
2817 | } | |
2818 | ||
2819 | if (thunk_formal) | |
2820 | { | |
2821 | /* Pass the argument. */ | |
d95efb59 | 2822 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2823 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2824 | if (formal->sym->ts.type == BT_CHARACTER) |
2825 | { | |
eeebe20b | 2826 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2827 | vec_safe_push (string_args, tmp); |
1b716045 | 2828 | } |
2829 | } | |
2830 | else | |
2831 | { | |
2832 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2833 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2834 | if (formal->sym->ts.type == BT_CHARACTER) |
2835 | { | |
7d3075f6 | 2836 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2837 | vec_safe_push (string_args, tmp); |
1b716045 | 2838 | } |
2839 | } | |
2840 | } | |
2841 | ||
2842 | /* Call the master function. */ | |
f1f41a6c | 2843 | vec_safe_splice (args, string_args); |
1b716045 | 2844 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2845 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2846 | if (ns->proc_name->attr.mixed_entry_master) |
2847 | { | |
2848 | tree union_decl, field; | |
2849 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2850 | ||
e60a6f7b | 2851 | union_decl = build_decl (input_location, |
2852 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2853 | TREE_TYPE (master_type)); |
2854 | DECL_ARTIFICIAL (union_decl) = 1; | |
2855 | DECL_EXTERNAL (union_decl) = 0; | |
2856 | TREE_PUBLIC (union_decl) = 0; | |
2857 | TREE_USED (union_decl) = 1; | |
2858 | layout_decl (union_decl, 0); | |
2859 | pushdecl (union_decl); | |
2860 | ||
2861 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2862 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2863 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2864 | gfc_add_expr_to_block (&body, tmp); |
2865 | ||
2866 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2867 | field; field = DECL_CHAIN (field)) |
c6871095 | 2868 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2869 | thunk_sym->result->name) == 0) | |
2870 | break; | |
2871 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2872 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2873 | TREE_TYPE (field), union_decl, field, | |
2874 | NULL_TREE); | |
a90fe829 | 2875 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2876 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2877 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2878 | tmp = build1_v (RETURN_EXPR, tmp); |
2879 | } | |
2880 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2881 | != void_type_node) | |
2882 | { | |
fd779e1d | 2883 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2884 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2885 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2886 | tmp = build1_v (RETURN_EXPR, tmp); |
2887 | } | |
1b716045 | 2888 | gfc_add_expr_to_block (&body, tmp); |
2889 | ||
2890 | /* Finish off this function and send it for code generation. */ | |
2891 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2892 | tmp = getdecls (); |
cde2be84 | 2893 | poplevel (1, 1); |
1b716045 | 2894 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2895 | DECL_SAVED_TREE (thunk_fndecl) |
2896 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2897 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2898 | |
2899 | /* Output the GENERIC tree. */ | |
2900 | dump_function (TDI_original, thunk_fndecl); | |
2901 | ||
2902 | /* Store the end of the function, so that we get good line number | |
2903 | info for the epilogue. */ | |
2904 | cfun->function_end_locus = input_location; | |
2905 | ||
2906 | /* We're leaving the context of this function, so zap cfun. | |
2907 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2908 | tree_rest_of_compilation. */ | |
87d4aa85 | 2909 | set_cfun (NULL); |
1b716045 | 2910 | |
2911 | current_function_decl = NULL_TREE; | |
2912 | ||
35ee1c66 | 2913 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2914 | |
2915 | /* We share the symbols in the formal argument list with other entry | |
2916 | points and the master function. Clear them so that they are | |
2917 | recreated for each function. */ | |
6777213b | 2918 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2919 | formal = formal->next) | |
c6871095 | 2920 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2921 | { | |
2922 | formal->sym->backend_decl = NULL_TREE; | |
2923 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2924 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2925 | } |
2926 | ||
2927 | if (thunk_sym->attr.function) | |
1b716045 | 2928 | { |
c6871095 | 2929 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2930 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2931 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2932 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2933 | } |
2934 | } | |
b31f705b | 2935 | |
4671339c | 2936 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2937 | } |
2938 | ||
2939 | ||
2940 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2941 | points. If global is true, generate the function in the global binding |
2942 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2943 | |
2944 | void | |
d896f9b3 | 2945 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2946 | { |
2947 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2948 | build_function_decl (ns->proc_name, global); |
1b716045 | 2949 | |
f888a3fb | 2950 | /* Compile the entry thunks. */ |
1b716045 | 2951 | if (ns->entries) |
d896f9b3 | 2952 | build_entry_thunks (ns, global); |
1b716045 | 2953 | |
2954 | /* Now create the read argument list. */ | |
2955 | create_function_arglist (ns->proc_name); | |
15b28553 | 2956 | |
2957 | if (ns->omp_declare_simd) | |
2958 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2959 | } |
2960 | ||
c750cc52 | 2961 | /* Return the decl used to hold the function return value. If |
3350e716 | 2962 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2963 | |
2964 | tree | |
c750cc52 | 2965 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2966 | { |
c750cc52 | 2967 | tree decl; |
2968 | tree length; | |
2969 | tree this_fake_result_decl; | |
2970 | tree this_function_decl; | |
4ee9c684 | 2971 | |
2972 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2973 | ||
c750cc52 | 2974 | if (parent_flag) |
2975 | { | |
2976 | this_fake_result_decl = parent_fake_result_decl; | |
2977 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2978 | } | |
2979 | else | |
2980 | { | |
2981 | this_fake_result_decl = current_fake_result_decl; | |
2982 | this_function_decl = current_function_decl; | |
2983 | } | |
2984 | ||
c6871095 | 2985 | if (sym |
c750cc52 | 2986 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2987 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2988 | && sym != sym->ns->proc_name) |
2989 | { | |
e228ac8a | 2990 | tree t = NULL, var; |
c750cc52 | 2991 | if (this_fake_result_decl != NULL) |
2992 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2993 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2994 | break; | |
2995 | if (t) | |
2996 | return TREE_VALUE (t); | |
c750cc52 | 2997 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2998 | ||
2999 | if (parent_flag) | |
3000 | this_fake_result_decl = parent_fake_result_decl; | |
3001 | else | |
3002 | this_fake_result_decl = current_fake_result_decl; | |
3003 | ||
e228ac8a | 3004 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
3005 | { | |
3006 | tree field; | |
c6871095 | 3007 | |
e228ac8a | 3008 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); |
3009 | field; field = DECL_CHAIN (field)) | |
3010 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), | |
3011 | sym->name) == 0) | |
3012 | break; | |
c6871095 | 3013 | |
e228ac8a | 3014 | gcc_assert (field != NULL_TREE); |
3015 | decl = fold_build3_loc (input_location, COMPONENT_REF, | |
3016 | TREE_TYPE (field), decl, field, NULL_TREE); | |
3017 | } | |
c750cc52 | 3018 | |
3019 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
3020 | if (parent_flag) | |
3021 | gfc_add_decl_to_parent_function (var); | |
3022 | else | |
3023 | gfc_add_decl_to_function (var); | |
3024 | ||
d4163395 | 3025 | SET_DECL_VALUE_EXPR (var, decl); |
3026 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 3027 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 3028 | |
3029 | TREE_CHAIN (this_fake_result_decl) | |
3030 | = tree_cons (get_identifier (sym->name), var, | |
3031 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 3032 | return var; |
c6871095 | 3033 | } |
3034 | ||
c750cc52 | 3035 | if (this_fake_result_decl != NULL_TREE) |
3036 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 3037 | |
3038 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
3039 | sym is NULL. */ | |
3040 | if (!sym) | |
3041 | return NULL_TREE; | |
3042 | ||
d4163395 | 3043 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 3044 | { |
eeebe20b | 3045 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 3046 | length = gfc_create_string_length (sym); |
3047 | else | |
eeebe20b | 3048 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 3049 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
99042714 | 3050 | gfc_add_decl_to_function (length); |
4ee9c684 | 3051 | } |
3052 | ||
3053 | if (gfc_return_by_reference (sym)) | |
3054 | { | |
c750cc52 | 3055 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 3056 | |
c750cc52 | 3057 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 3058 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 3059 | decl = DECL_CHAIN (decl); |
4ee9c684 | 3060 | |
3061 | TREE_USED (decl) = 1; | |
3062 | if (sym->as) | |
3063 | decl = gfc_build_dummy_array_decl (sym, decl); | |
3064 | } | |
3065 | else | |
3066 | { | |
3067 | sprintf (name, "__result_%.20s", | |
c750cc52 | 3068 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 3069 | |
3350e716 | 3070 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 3071 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 3072 | VAR_DECL, get_identifier (name), |
3350e716 | 3073 | gfc_sym_type (sym)); |
3074 | else | |
1e71b314 | 3075 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 3076 | VAR_DECL, get_identifier (name), |
3350e716 | 3077 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 3078 | DECL_ARTIFICIAL (decl) = 1; |
3079 | DECL_EXTERNAL (decl) = 0; | |
3080 | TREE_PUBLIC (decl) = 0; | |
3081 | TREE_USED (decl) = 1; | |
764f1175 | 3082 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 3083 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 3084 | |
3085 | layout_decl (decl, 0); | |
cf5f881f | 3086 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 3087 | |
c750cc52 | 3088 | if (parent_flag) |
3089 | gfc_add_decl_to_parent_function (decl); | |
3090 | else | |
3091 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 3092 | } |
3093 | ||
c750cc52 | 3094 | if (parent_flag) |
3095 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3096 | else | |
3097 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 3098 | |
3099 | return decl; | |
3100 | } | |
3101 | ||
3102 | ||
3103 | /* Builds a function decl. The remaining parameters are the types of the | |
3104 | function arguments. Negative nargs indicates a varargs function. */ | |
3105 | ||
8ce86007 | 3106 | static tree |
3107 | build_library_function_decl_1 (tree name, const char *spec, | |
3108 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 3109 | { |
f1f41a6c | 3110 | vec<tree, va_gc> *arglist; |
4ee9c684 | 3111 | tree fntype; |
3112 | tree fndecl; | |
4ee9c684 | 3113 | int n; |
3114 | ||
3115 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 3116 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 3117 | |
4ee9c684 | 3118 | /* Create a list of the argument types. */ |
f1f41a6c | 3119 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 3120 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 3121 | { |
5edc3af9 | 3122 | tree argtype = va_arg (p, tree); |
f1f41a6c | 3123 | arglist->quick_push (argtype); |
4ee9c684 | 3124 | } |
3125 | ||
3126 | /* Build the function type and decl. */ | |
5edc3af9 | 3127 | if (nargs >= 0) |
3128 | fntype = build_function_type_vec (rettype, arglist); | |
3129 | else | |
3130 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 3131 | if (spec) |
3132 | { | |
3133 | tree attr_args = build_tree_list (NULL_TREE, | |
3134 | build_string (strlen (spec), spec)); | |
3135 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3136 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3137 | fntype = build_type_attribute_variant (fntype, attrs); | |
3138 | } | |
e60a6f7b | 3139 | fndecl = build_decl (input_location, |
3140 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 3141 | |
3142 | /* Mark this decl as external. */ | |
3143 | DECL_EXTERNAL (fndecl) = 1; | |
3144 | TREE_PUBLIC (fndecl) = 1; | |
3145 | ||
4ee9c684 | 3146 | pushdecl (fndecl); |
3147 | ||
b2c4af5e | 3148 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 3149 | |
3150 | return fndecl; | |
3151 | } | |
3152 | ||
8ce86007 | 3153 | /* Builds a function decl. The remaining parameters are the types of the |
3154 | function arguments. Negative nargs indicates a varargs function. */ | |
3155 | ||
3156 | tree | |
3157 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3158 | { | |
3159 | tree ret; | |
3160 | va_list args; | |
3161 | va_start (args, nargs); | |
3162 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3163 | va_end (args); | |
3164 | return ret; | |
3165 | } | |
3166 | ||
3167 | /* Builds a function decl. The remaining parameters are the types of the | |
3168 | function arguments. Negative nargs indicates a varargs function. | |
3169 | The SPEC parameter specifies the function argument and return type | |
3170 | specification according to the fnspec function type attribute. */ | |
3171 | ||
4bf69bc3 | 3172 | tree |
8ce86007 | 3173 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3174 | tree rettype, int nargs, ...) | |
3175 | { | |
3176 | tree ret; | |
3177 | va_list args; | |
3178 | va_start (args, nargs); | |
3179 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3180 | va_end (args); | |
3181 | return ret; | |
3182 | } | |
3183 | ||
4ee9c684 | 3184 | static void |
3185 | gfc_build_intrinsic_function_decls (void) | |
3186 | { | |
90ba9145 | 3187 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 3188 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3189 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3190 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3191 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3192 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3193 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3194 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3195 | |
4ee9c684 | 3196 | /* String functions. */ |
241ecdc7 | 3197 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3198 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3199 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3200 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3201 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3202 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3203 | |
3204 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3205 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3206 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3207 | gfc_charlen_type_node, pchar1_type_node, | |
3208 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3209 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3210 | |
3211 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3212 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3213 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3214 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3215 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3216 | |
3217 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3218 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3219 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3220 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3221 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3222 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3223 | |
3224 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3225 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3226 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3227 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3228 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3229 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3230 | |
3231 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3232 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3233 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3234 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3235 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3236 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3237 | |
3238 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3239 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3240 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3241 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3242 | pchar1_type_node); | |
3243 | ||
3244 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3245 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3246 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3247 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3248 | integer_type_node); | |
3249 | ||
3250 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3251 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3252 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3253 | pchar1_type_node); | |
bc351485 | 3254 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3255 | |
3256 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3257 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3258 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3259 | pchar1_type_node); | |
bc351485 | 3260 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3261 | |
3262 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3263 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3264 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3265 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3266 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3267 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3268 | |
3269 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3270 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3271 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3272 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3273 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3274 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3275 | |
3276 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3277 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3278 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3279 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3280 | pchar4_type_node); | |
bc351485 | 3281 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3282 | |
3283 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3284 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3285 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3286 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3287 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3288 | |
3289 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3290 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3291 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3292 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3293 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3294 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3295 | |
3296 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3297 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3298 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3299 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3300 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3301 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3302 | |
3303 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3304 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3305 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3306 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3307 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3308 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3309 | |
3310 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3311 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3312 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3313 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3314 | pchar4_type_node); | |
3315 | ||
3316 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3317 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3318 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3319 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3320 | integer_type_node); | |
3321 | ||
3322 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3323 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3324 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3325 | pchar4_type_node); | |
bc351485 | 3326 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3327 | |
3328 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3329 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3330 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3331 | pchar4_type_node); | |
bc351485 | 3332 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3333 | |
3334 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3335 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3336 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3337 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3338 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3339 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3340 | |
3341 | ||
3342 | /* Conversion between character kinds. */ | |
3343 | ||
241ecdc7 | 3344 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3345 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3346 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3347 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3348 | |
241ecdc7 | 3349 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3350 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3351 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3352 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3353 | |
40b806de | 3354 | /* Misc. functions. */ |
5fcc6ec2 | 3355 | |
241ecdc7 | 3356 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3357 | get_identifier (PREFIX("ttynam")), ".W", | |
3358 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3359 | integer_type_node); | |
3360 | ||
3361 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3362 | get_identifier (PREFIX("fdate")), ".W", | |
3363 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3364 | ||
3365 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3366 | get_identifier (PREFIX("ctime")), ".W", | |
3367 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3368 | gfc_int8_type_node); | |
3369 | ||
0ecc062b | 3370 | gfor_fndecl_random_init = gfc_build_library_function_decl ( |
3371 | get_identifier (PREFIX("random_init")), | |
3372 | void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node, | |
3373 | gfc_int4_type_node); | |
3374 | ||
241ecdc7 | 3375 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( |
3376 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3377 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3378 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3379 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3380 | |
3381 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3382 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3383 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3384 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3385 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3386 | |
3387 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3388 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3389 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3390 | pvoid_type_node); | |
537824d1 | 3391 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3392 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3393 | |
72ce5390 | 3394 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3395 | get_identifier (PREFIX("system_clock_4")), | |
3396 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3397 | gfc_pint4_type_node); | |
3398 | ||
3399 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3400 | get_identifier (PREFIX("system_clock_8")), | |
3401 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3402 | gfc_pint8_type_node); | |
3403 | ||
4ee9c684 | 3404 | /* Power functions. */ |
76834664 | 3405 | { |
920e54ef | 3406 | tree ctype, rtype, itype, jtype; |
3407 | int rkind, ikind, jkind; | |
3408 | #define NIKINDS 3 | |
3409 | #define NRKINDS 4 | |
3410 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3411 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3412 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3413 | ||
3414 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3415 | { |
920e54ef | 3416 | itype = gfc_get_int_type (ikinds[ikind]); |
3417 | ||
3418 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3419 | { | |
3420 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3421 | if (itype && jtype) | |
3422 | { | |
6d3cbc0c | 3423 | sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind], |
920e54ef | 3424 | ikinds[jkind]); |
3425 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3426 | gfc_build_library_function_decl (get_identifier (name), | |
3427 | jtype, 2, jtype, itype); | |
2177d98b | 3428 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3429 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3430 | } |
3431 | } | |
3432 | ||
3433 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3434 | { |
920e54ef | 3435 | rtype = gfc_get_real_type (rkinds[rkind]); |
3436 | if (rtype && itype) | |
3437 | { | |
6d3cbc0c | 3438 | sprintf (name, PREFIX("pow_r%d_i%d"), rkinds[rkind], |
920e54ef | 3439 | ikinds[ikind]); |
3440 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3441 | gfc_build_library_function_decl (get_identifier (name), | |
3442 | rtype, 2, rtype, itype); | |
2177d98b | 3443 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3444 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3445 | } |
3446 | ||
3447 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3448 | if (ctype && itype) | |
3449 | { | |
6d3cbc0c | 3450 | sprintf (name, PREFIX("pow_c%d_i%d"), rkinds[rkind], |
920e54ef | 3451 | ikinds[ikind]); |
3452 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3453 | gfc_build_library_function_decl (get_identifier (name), | |
3454 | ctype, 2,ctype, itype); | |
2177d98b | 3455 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3456 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3457 | } |
76834664 | 3458 | } |
3459 | } | |
920e54ef | 3460 | #undef NIKINDS |
3461 | #undef NRKINDS | |
76834664 | 3462 | } |
3463 | ||
241ecdc7 | 3464 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3465 | get_identifier (PREFIX("ishftc4")), | |
3466 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3467 | gfc_int4_type_node); | |
bc351485 | 3468 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3469 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3470 | |
241ecdc7 | 3471 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3472 | get_identifier (PREFIX("ishftc8")), | |
3473 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3474 | gfc_int4_type_node); | |
bc351485 | 3475 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3476 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3477 | |
920e54ef | 3478 | if (gfc_int16_type_node) |
bc351485 | 3479 | { |
3480 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3481 | get_identifier (PREFIX("ishftc16")), |
3482 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3483 | gfc_int4_type_node); | |
bc351485 | 3484 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3485 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3486 | } | |
920e54ef | 3487 | |
4e8e57b0 | 3488 | /* BLAS functions. */ |
3489 | { | |
36c921b9 | 3490 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3491 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3492 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3493 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3494 | tree pz = build_pointer_type | |
3495 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3496 | ||
3497 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3498 | (get_identifier | |
829d7a08 | 3499 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3500 | void_type_node, 15, pchar_type_node, |
3501 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3502 | ps, pint, ps, ps, pint, integer_type_node, |
3503 | integer_type_node); | |
4e8e57b0 | 3504 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3505 | (get_identifier | |
829d7a08 | 3506 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3507 | void_type_node, 15, pchar_type_node, |
3508 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3509 | pd, pint, pd, pd, pint, integer_type_node, |
3510 | integer_type_node); | |
4e8e57b0 | 3511 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3512 | (get_identifier | |
829d7a08 | 3513 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3514 | void_type_node, 15, pchar_type_node, |
3515 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3516 | pc, pint, pc, pc, pint, integer_type_node, |
3517 | integer_type_node); | |
4e8e57b0 | 3518 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3519 | (get_identifier | |
829d7a08 | 3520 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3521 | void_type_node, 15, pchar_type_node, |
3522 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3523 | pz, pint, pz, pz, pint, integer_type_node, |
3524 | integer_type_node); | |
4e8e57b0 | 3525 | } |
3526 | ||
4ee9c684 | 3527 | /* Other functions. */ |
241ecdc7 | 3528 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3529 | get_identifier (PREFIX("size0")), ".R", | |
3530 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3531 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3532 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3533 | |
3534 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3535 | get_identifier (PREFIX("size1")), ".R", | |
3536 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3537 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3538 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3539 | |
3540 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3541 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3542 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
92c9ff97 | 3543 | |
3544 | gfor_fndecl_kill_sub = gfc_build_library_function_decl ( | |
3545 | get_identifier (PREFIX ("kill_sub")), void_type_node, | |
3546 | 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node); | |
3547 | ||
3548 | gfor_fndecl_kill = gfc_build_library_function_decl ( | |
3549 | get_identifier (PREFIX ("kill")), gfc_int4_type_node, | |
3550 | 2, gfc_int4_type_node, gfc_int4_type_node); | |
5f34f219 | 3551 | |
3552 | gfor_fndecl_is_contiguous0 = gfc_build_library_function_decl_with_spec ( | |
3553 | get_identifier (PREFIX("is_contiguous0")), ".R", | |
3554 | gfc_int4_type_node, 1, pvoid_type_node); | |
3555 | DECL_PURE_P (gfor_fndecl_is_contiguous0) = 1; | |
3556 | TREE_NOTHROW (gfor_fndecl_is_contiguous0) = 1; | |
4ee9c684 | 3557 | } |
3558 | ||
3559 | ||
3560 | /* Make prototypes for runtime library functions. */ | |
3561 | ||
3562 | void | |
3563 | gfc_build_builtin_function_decls (void) | |
3564 | { | |
da8fd78f | 3565 | tree gfc_int8_type_node = gfc_get_int_type (8); |
4ee9c684 | 3566 | |
241ecdc7 | 3567 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3568 | get_identifier (PREFIX("stop_numeric")), | |
dbd7773a | 3569 | void_type_node, 2, integer_type_node, boolean_type_node); |
070cc790 | 3570 | /* STOP doesn't return. */ |
98ccec97 | 3571 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3572 | ||
241ecdc7 | 3573 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3574 | get_identifier (PREFIX("stop_string")), ".R.", | |
dbd7773a | 3575 | void_type_node, 3, pchar_type_node, size_type_node, |
3576 | boolean_type_node); | |
070cc790 | 3577 | /* STOP doesn't return. */ |
241ecdc7 | 3578 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3579 | |
241ecdc7 | 3580 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3581 | get_identifier (PREFIX("error_stop_numeric")), | |
dbd7773a | 3582 | void_type_node, 2, integer_type_node, boolean_type_node); |
070cc790 | 3583 | /* ERROR STOP doesn't return. */ |
3584 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3585 | ||
241ecdc7 | 3586 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3587 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
dbd7773a | 3588 | void_type_node, 3, pchar_type_node, size_type_node, |
3589 | boolean_type_node); | |
c6cd3066 | 3590 | /* ERROR STOP doesn't return. */ |
3591 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3592 | ||
241ecdc7 | 3593 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3594 | get_identifier (PREFIX("pause_numeric")), | |
da8fd78f | 3595 | void_type_node, 1, gfc_int8_type_node); |
070cc790 | 3596 | |
241ecdc7 | 3597 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3598 | get_identifier (PREFIX("pause_string")), ".R.", | |
da8fd78f | 3599 | void_type_node, 2, pchar_type_node, size_type_node); |
4ee9c684 | 3600 | |
241ecdc7 | 3601 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3602 | get_identifier (PREFIX("runtime_error")), ".R", | |
3603 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3604 | /* The runtime_error function does not return. */ |
3605 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3606 | |
241ecdc7 | 3607 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3608 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3609 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3610 | /* The runtime_error_at function does not return. */ |
3611 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3612 | |
241ecdc7 | 3613 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3614 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3615 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3616 | ||
3617 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3618 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3619 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3620 | pchar_type_node); | |
3621 | ||
3622 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3623 | get_identifier (PREFIX("os_error")), ".R", | |
3624 | void_type_node, 1, pchar_type_node); | |
9915365e | 3625 | /* The runtime_error function does not return. */ |
3626 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3627 | ||
241ecdc7 | 3628 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3629 | get_identifier (PREFIX("set_args")), | |
3630 | void_type_node, 2, integer_type_node, | |
3631 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3632 | |
241ecdc7 | 3633 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3634 | get_identifier (PREFIX("set_fpe")), | |
3635 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3636 | |
d566c3e0 | 3637 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3638 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3639 | void_type_node, 1, pvoid_type_node); | |
3640 | ||
3641 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3642 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3643 | void_type_node, 1, pvoid_type_node); | |
3644 | ||
56c7c2d7 | 3645 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3646 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3647 | get_identifier (PREFIX("set_options")), "..R", | |
3648 | void_type_node, 2, integer_type_node, | |
3649 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3650 | |
241ecdc7 | 3651 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3652 | get_identifier (PREFIX("set_convert")), | |
3653 | void_type_node, 1, integer_type_node); | |
15774a8b | 3654 | |
241ecdc7 | 3655 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3656 | get_identifier (PREFIX("set_record_marker")), | |
3657 | void_type_node, 1, integer_type_node); | |
f23886ab | 3658 | |
241ecdc7 | 3659 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3660 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3661 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3662 | |
8ce86007 | 3663 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3664 | get_identifier (PREFIX("internal_pack")), ".r", |
3665 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3666 | |
8ce86007 | 3667 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3668 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3669 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3670 | ||
77ddff12 | 3671 | gfor_fndecl_cfi_to_gfc = gfc_build_library_function_decl_with_spec ( |
3672 | get_identifier (PREFIX("cfi_desc_to_gfc_desc")), ".ww", | |
3673 | void_type_node, 2, pvoid_type_node, ppvoid_type_node); | |
3674 | ||
3675 | gfor_fndecl_gfc_to_cfi = gfc_build_library_function_decl_with_spec ( | |
3676 | get_identifier (PREFIX("gfc_desc_to_cfi_desc")), ".wR", | |
3677 | void_type_node, 2, ppvoid_type_node, pvoid_type_node); | |
3678 | ||
241ecdc7 | 3679 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( |
3680 | get_identifier (PREFIX("associated")), ".RR", | |
3681 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3682 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3683 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3684 | |
70b5944a | 3685 | /* Coarray library calls. */ |
4fe73152 | 3686 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3687 | { |
3688 | tree pint_type, pppchar_type; | |
3689 | ||
3690 | pint_type = build_pointer_type (integer_type_node); | |
3691 | pppchar_type | |
3692 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3693 | ||
3694 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
65cbb21d | 3695 | get_identifier (PREFIX("caf_init")), void_type_node, |
3696 | 2, pint_type, pppchar_type); | |
70b5944a | 3697 | |
3698 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3699 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3700 | ||
d44f2f7c | 3701 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
65cbb21d | 3702 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3703 | 1, integer_type_node); | |
d44f2f7c | 3704 | |
3705 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
65cbb21d | 3706 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3707 | 2, integer_type_node, integer_type_node); | |
d44f2f7c | 3708 | |
a961ca30 | 3709 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
eee0cf09 | 3710 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3711 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
5e04a38a | 3712 | pint_type, pchar_type_node, size_type_node); |
d0d776fb | 3713 | |
3714 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3d2aa0e8 | 3715 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3716 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
5e04a38a | 3717 | size_type_node); |
a961ca30 | 3718 | |
5f4a118e | 3719 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3720 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3721 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3722 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3723 | boolean_type_node, pint_type); |
5f4a118e | 3724 | |
3725 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
6d3cbc0c | 3726 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRWR", void_type_node, 11, |
65cbb21d | 3727 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3728 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6d3cbc0c | 3729 | boolean_type_node, pint_type, pvoid_type_node); |
5f4a118e | 3730 | |
3731 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
eee0cf09 | 3732 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3733 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3734 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3735 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3736 | integer_type_node, boolean_type_node, integer_type_node); | |
3737 | ||
3738 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3739 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRWR", void_type_node, |
3740 | 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3741 | pvoid_type_node, integer_type_node, integer_type_node, | |
3742 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
eee0cf09 | 3743 | |
3744 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3745 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRWR", |
3746 | void_type_node, 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3747 | pvoid_type_node, integer_type_node, integer_type_node, | |
3748 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
eee0cf09 | 3749 | |
3750 | gfor_fndecl_caf_sendget_by_ref | |
3751 | = gfc_build_library_function_decl_with_spec ( | |
7d96ee9e | 3752 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWWRR", |
3753 | void_type_node, 13, pvoid_type_node, integer_type_node, | |
eee0cf09 | 3754 | pvoid_type_node, pvoid_type_node, integer_type_node, |
3755 | pvoid_type_node, integer_type_node, integer_type_node, | |
7d96ee9e | 3756 | boolean_type_node, pint_type, pint_type, integer_type_node, |
3757 | integer_type_node); | |
5f4a118e | 3758 | |
70b5944a | 3759 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3760 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
5e04a38a | 3761 | 3, pint_type, pchar_type_node, size_type_node); |
70b5944a | 3762 | |
71cf3ae6 | 3763 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3764 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
5e04a38a | 3765 | 3, pint_type, pchar_type_node, size_type_node); |
71cf3ae6 | 3766 | |
70b5944a | 3767 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3768 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3769 | 5, integer_type_node, pint_type, pint_type, | |
5e04a38a | 3770 | pchar_type_node, size_type_node); |
70b5944a | 3771 | |
3772 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3773 | get_identifier (PREFIX("caf_error_stop")), | |
5e04a38a | 3774 | void_type_node, 1, integer_type_node); |
70b5944a | 3775 | /* CAF's ERROR STOP doesn't return. */ |
3776 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3777 | ||
3778 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3779 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
5e04a38a | 3780 | void_type_node, 2, pchar_type_node, size_type_node); |
70b5944a | 3781 | /* CAF's ERROR STOP doesn't return. */ |
3782 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3783 | |
ba4d9b7e | 3784 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3785 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
5e04a38a | 3786 | void_type_node, 1, integer_type_node); |
ba4d9b7e | 3787 | /* CAF's STOP doesn't return. */ |
3788 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3789 | ||
3790 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3791 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
5e04a38a | 3792 | void_type_node, 2, pchar_type_node, size_type_node); |
ba4d9b7e | 3793 | /* CAF's STOP doesn't return. */ |
3794 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3795 | ||
97b9ac34 | 3796 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3797 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3798 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3799 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3800 | |
3801 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3802 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3803 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3804 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3805 | |
3806 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3807 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3808 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3809 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
97b9ac34 | 3810 | integer_type_node, integer_type_node); |
3811 | ||
3812 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3813 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3814 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3815 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3816 | integer_type_node, integer_type_node); | |
3817 | ||
498b946e | 3818 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3819 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3820 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3821 | pint_type, pint_type, pchar_type_node, size_type_node); |
498b946e | 3822 | |
3823 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3824 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3825 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
5e04a38a | 3826 | pint_type, pchar_type_node, size_type_node); |
498b946e | 3827 | |
bd47f0bc | 3828 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3829 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3830 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3831 | pint_type, pchar_type_node, size_type_node); |
bd47f0bc | 3832 | |
3833 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3834 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3835 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
5e04a38a | 3836 | pint_type, pchar_type_node, size_type_node); |
bd47f0bc | 3837 | |
3838 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3839 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3840 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3841 | pint_type, pint_type); | |
3842 | ||
d9ca273e | 3843 | gfor_fndecl_caf_fail_image = gfc_build_library_function_decl ( |
3844 | get_identifier (PREFIX("caf_fail_image")), void_type_node, 0); | |
3845 | /* CAF's FAIL doesn't return. */ | |
3846 | TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1; | |
3847 | ||
3848 | gfor_fndecl_caf_failed_images | |
3849 | = gfc_build_library_function_decl_with_spec ( | |
3850 | get_identifier (PREFIX("caf_failed_images")), "WRR", | |
3851 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3852 | integer_type_node); | |
3853 | ||
6d3cbc0c | 3854 | gfor_fndecl_caf_form_team |
3855 | = gfc_build_library_function_decl_with_spec ( | |
3856 | get_identifier (PREFIX("caf_form_team")), "RWR", | |
3857 | void_type_node, 3, integer_type_node, ppvoid_type_node, | |
3858 | integer_type_node); | |
3859 | ||
3860 | gfor_fndecl_caf_change_team | |
3861 | = gfc_build_library_function_decl_with_spec ( | |
3862 | get_identifier (PREFIX("caf_change_team")), "RR", | |
3863 | void_type_node, 2, ppvoid_type_node, | |
3864 | integer_type_node); | |
3865 | ||
3866 | gfor_fndecl_caf_end_team | |
3867 | = gfc_build_library_function_decl ( | |
3868 | get_identifier (PREFIX("caf_end_team")), void_type_node, 0); | |
3869 | ||
3870 | gfor_fndecl_caf_get_team | |
3871 | = gfc_build_library_function_decl_with_spec ( | |
3872 | get_identifier (PREFIX("caf_get_team")), "R", | |
3873 | void_type_node, 1, integer_type_node); | |
3874 | ||
3875 | gfor_fndecl_caf_sync_team | |
3876 | = gfc_build_library_function_decl_with_spec ( | |
3877 | get_identifier (PREFIX("caf_sync_team")), "RR", | |
3878 | void_type_node, 2, ppvoid_type_node, | |
3879 | integer_type_node); | |
3880 | ||
3881 | gfor_fndecl_caf_team_number | |
3882 | = gfc_build_library_function_decl_with_spec ( | |
3883 | get_identifier (PREFIX("caf_team_number")), "R", | |
3884 | integer_type_node, 1, integer_type_node); | |
3885 | ||
d9ca273e | 3886 | gfor_fndecl_caf_image_status |
3887 | = gfc_build_library_function_decl_with_spec ( | |
3888 | get_identifier (PREFIX("caf_image_status")), "RR", | |
3889 | integer_type_node, 2, integer_type_node, ppvoid_type_node); | |
3890 | ||
3891 | gfor_fndecl_caf_stopped_images | |
3892 | = gfc_build_library_function_decl_with_spec ( | |
3893 | get_identifier (PREFIX("caf_stopped_images")), "WRR", | |
3894 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3895 | integer_type_node); | |
3896 | ||
52306a18 | 3897 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3898 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3899 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
5e04a38a | 3900 | pint_type, pchar_type_node, size_type_node); |
52306a18 | 3901 | |
79ed4a8e | 3902 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3903 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3904 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
5e04a38a | 3905 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
79ed4a8e | 3906 | |
3907 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3908 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3909 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
5e04a38a | 3910 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
79ed4a8e | 3911 | |
e39efcef | 3912 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3913 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3914 | void_type_node, 8, pvoid_type_node, | |
65cbb21d | 3915 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
e39efcef | 3916 | NULL_TREE)), |
3917 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
5e04a38a | 3918 | integer_type_node, size_type_node); |
e39efcef | 3919 | |
79ed4a8e | 3920 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3921 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3922 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
5e04a38a | 3923 | pint_type, pchar_type_node, size_type_node); |
3d2aa0e8 | 3924 | |
3925 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3926 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3927 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3928 | pvoid_type_node); | |
70b5944a | 3929 | } |
3930 | ||
4ee9c684 | 3931 | gfc_build_intrinsic_function_decls (); |
3932 | gfc_build_intrinsic_lib_fndecls (); | |
3933 | gfc_build_io_library_fndecls (); | |
3934 | } | |
3935 | ||
3936 | ||
231e961a | 3937 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3938 | |
c5faa799 | 3939 | static void |
3940 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3941 | gfc_wrapped_block *block) | |
4ee9c684 | 3942 | { |
c5faa799 | 3943 | stmtblock_t init; |
4ee9c684 | 3944 | |
b9c7fce7 | 3945 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3946 | |
c5faa799 | 3947 | gfc_start_block (&init); |
4ee9c684 | 3948 | |
3949 | /* Evaluate the string length expression. */ | |
c5faa799 | 3950 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3951 | |
c5faa799 | 3952 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3953 | |
c5faa799 | 3954 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3955 | } |
3956 | ||
3957 | ||
3958 | /* Allocate and cleanup an automatic character variable. */ | |
3959 | ||
c5faa799 | 3960 | static void |
3961 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3962 | { |
c5faa799 | 3963 | stmtblock_t init; |
4ee9c684 | 3964 | tree decl; |
4ee9c684 | 3965 | tree tmp; |
3966 | ||
22d678e8 | 3967 | gcc_assert (sym->backend_decl); |
eeebe20b | 3968 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3969 | |
3714c8b6 | 3970 | gfc_init_block (&init); |
4ee9c684 | 3971 | |
3972 | /* Evaluate the string length expression. */ | |
c5faa799 | 3973 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3974 | |
c5faa799 | 3975 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3976 | |
4ee9c684 | 3977 | decl = sym->backend_decl; |
3978 | ||
afcf285e | 3979 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3980 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3981 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3982 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3983 | |
c5faa799 | 3984 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3985 | } |
3986 | ||
c8f1568f | 3987 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3988 | ||
c5faa799 | 3989 | static void |
3990 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3991 | { |
c5faa799 | 3992 | stmtblock_t init; |
c8f1568f | 3993 | |
3994 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3995 | gfc_start_block (&init); |
c8f1568f | 3996 | |
3997 | /* Set the initial value to length. See the comments in | |
3998 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3999 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 4000 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 4001 | |
c5faa799 | 4002 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 4003 | } |
4004 | ||
d4163395 | 4005 | static void |
4006 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
4007 | { | |
4008 | tree t = *tp, var, val; | |
4009 | ||
4010 | if (t == NULL || t == error_mark_node) | |
4011 | return; | |
4012 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
4013 | return; | |
4014 | ||
4015 | if (TREE_CODE (t) == SAVE_EXPR) | |
4016 | { | |
4017 | if (SAVE_EXPR_RESOLVED_P (t)) | |
4018 | { | |
4019 | *tp = TREE_OPERAND (t, 0); | |
4020 | return; | |
4021 | } | |
4022 | val = TREE_OPERAND (t, 0); | |
4023 | } | |
4024 | else | |
4025 | val = t; | |
4026 | ||
4027 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
4028 | gfc_add_decl_to_function (var); | |
1ec957b0 | 4029 | gfc_add_modify (body, var, unshare_expr (val)); |
d4163395 | 4030 | if (TREE_CODE (t) == SAVE_EXPR) |
4031 | TREE_OPERAND (t, 0) = var; | |
4032 | *tp = var; | |
4033 | } | |
4034 | ||
4035 | static void | |
4036 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
4037 | { | |
4038 | tree t; | |
4039 | ||
4040 | if (type == NULL || type == error_mark_node) | |
4041 | return; | |
4042 | ||
4043 | type = TYPE_MAIN_VARIANT (type); | |
4044 | ||
4045 | if (TREE_CODE (type) == INTEGER_TYPE) | |
4046 | { | |
4047 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
4048 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
4049 | ||
4050 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
4051 | { | |
4052 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
4053 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
4054 | } | |
4055 | } | |
4056 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
4057 | { | |
4058 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
4059 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
4060 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
4061 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
4062 | ||
4063 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
4064 | { | |
4065 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
4066 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
4067 | } | |
4068 | } | |
4069 | } | |
4070 | ||
4071 | /* Make sure all type sizes and array domains are either constant, | |
4072 | or variable or parameter decls. This is a simplified variant | |
4073 | of gimplify_type_sizes, but we can't use it here, as none of the | |
4074 | variables in the expressions have been gimplified yet. | |
4075 | As type sizes and domains for various variable length arrays | |
4076 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
4077 | time, without this routine gimplify_type_sizes in the middle-end | |
4078 | could result in the type sizes being gimplified earlier than where | |
4079 | those variables are initialized. */ | |
4080 | ||
4081 | void | |
4082 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
4083 | { | |
4084 | tree type = TREE_TYPE (sym->backend_decl); | |
4085 | ||
4086 | if (TREE_CODE (type) == FUNCTION_TYPE | |
4087 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
4088 | { | |
4089 | if (! current_fake_result_decl) | |
4090 | return; | |
4091 | ||
4092 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
4093 | } | |
4094 | ||
4095 | while (POINTER_TYPE_P (type)) | |
4096 | type = TREE_TYPE (type); | |
4097 | ||
4098 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
4099 | { | |
4100 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
4101 | ||
4102 | while (POINTER_TYPE_P (etype)) | |
4103 | etype = TREE_TYPE (etype); | |
4104 | ||
4105 | gfc_trans_vla_type_sizes_1 (etype, body); | |
4106 | } | |
4107 | ||
4108 | gfc_trans_vla_type_sizes_1 (type, body); | |
4109 | } | |
4110 | ||
4ee9c684 | 4111 | |
f0d4969f | 4112 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 4113 | and using trans_assignment to do the work. Set dealloc to false |
4114 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 4115 | void |
4116 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 4117 | { |
f0d4969f | 4118 | gfc_expr *e; |
87114d2e | 4119 | tree tmp; |
4120 | tree present; | |
4121 | ||
c5faa799 | 4122 | gcc_assert (block); |
4123 | ||
f0efd2e8 | 4124 | /* Initialization of PDTs is done elsewhere. */ |
4125 | if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
4126 | return; | |
4127 | ||
f0d4969f | 4128 | gcc_assert (!sym->attr.allocatable); |
4129 | gfc_set_sym_referenced (sym); | |
4130 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 4131 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 4132 | if (sym->attr.dummy && (sym->attr.optional |
4133 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 4134 | { |
f0d4969f | 4135 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 4136 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
4137 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 4138 | } |
c5faa799 | 4139 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 4140 | gfc_free_expr (e); |
87114d2e | 4141 | } |
4142 | ||
4143 | ||
8714fc76 | 4144 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
4145 | them their default initializer, if they do not have allocatable | |
293d72e0 | 4146 | components, they have their allocatable components deallocated. */ |
8714fc76 | 4147 | |
c5faa799 | 4148 | static void |
4149 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 4150 | { |
c5faa799 | 4151 | stmtblock_t init; |
f0d4969f | 4152 | gfc_formal_arglist *f; |
8714fc76 | 4153 | tree tmp; |
5907c3ea | 4154 | tree present; |
f0d4969f | 4155 | |
c5faa799 | 4156 | gfc_init_block (&init); |
6777213b | 4157 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 4158 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 4159 | && !f->sym->attr.pointer |
4160 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 4161 | { |
942ba353 | 4162 | tmp = NULL_TREE; |
4163 | ||
4164 | /* Note: Allocatables are excluded as they are already handled | |
4165 | by the caller. */ | |
4166 | if (!f->sym->attr.allocatable | |
4167 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 4168 | { |
942ba353 | 4169 | stmtblock_t block; |
4170 | gfc_expr *e; | |
4171 | ||
4172 | gfc_init_block (&block); | |
4173 | f->sym->attr.referenced = 1; | |
4174 | e = gfc_lval_expr_from_sym (f->sym); | |
4175 | gfc_add_finalizer_call (&block, e); | |
4176 | gfc_free_expr (e); | |
4177 | tmp = gfc_finish_block (&block); | |
4178 | } | |
5907c3ea | 4179 | |
942ba353 | 4180 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4181 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4182 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4183 | f->sym->backend_decl, | |
4184 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 4185 | |
942ba353 | 4186 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4187 | || f->sym->ns->proc_name->attr.entry_master)) | |
4188 | { | |
4189 | present = gfc_conv_expr_present (f->sym); | |
4190 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4191 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 4192 | } |
942ba353 | 4193 | |
4194 | if (tmp != NULL_TREE) | |
4195 | gfc_add_expr_to_block (&init, tmp); | |
4196 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 4197 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 4198 | } |
c56d57d6 | 4199 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4200 | && f->sym->ts.type == BT_CLASS | |
4201 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 4202 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 4203 | { |
942ba353 | 4204 | stmtblock_t block; |
4205 | gfc_expr *e; | |
4206 | ||
4207 | gfc_init_block (&block); | |
4208 | f->sym->attr.referenced = 1; | |
4209 | e = gfc_lval_expr_from_sym (f->sym); | |
4210 | gfc_add_finalizer_call (&block, e); | |
4211 | gfc_free_expr (e); | |
4212 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 4213 | |
4214 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4215 | { | |
4216 | present = gfc_conv_expr_present (f->sym); | |
4217 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4218 | present, tmp, | |
4219 | build_empty_stmt (input_location)); | |
4220 | } | |
4221 | ||
4222 | gfc_add_expr_to_block (&init, tmp); | |
4223 | } | |
f0d4969f | 4224 | |
c5faa799 | 4225 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 4226 | } |
4227 | ||
87114d2e | 4228 | |
b345a09f | 4229 | /* Helper function to manage deferred string lengths. */ |
4230 | ||
4231 | static tree | |
4232 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4233 | locus *loc) | |
4234 | { | |
4235 | tree tmp; | |
4236 | ||
4237 | /* Character length passed by reference. */ | |
4238 | tmp = sym->ts.u.cl->passed_length; | |
4239 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4240 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4241 | ||
4242 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4243 | /* Zero the string length when entering the scope. */ | |
4244 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4245 | build_int_cst (gfc_charlen_type_node, 0)); | |
4246 | else | |
4247 | { | |
4248 | tree tmp2; | |
4249 | ||
4250 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4251 | gfc_charlen_type_node, | |
4252 | sym->ts.u.cl->backend_decl, tmp); | |
4253 | if (sym->attr.optional) | |
4254 | { | |
4255 | tree present = gfc_conv_expr_present (sym); | |
4256 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4257 | void_type_node, present, tmp2, | |
4258 | build_empty_stmt (input_location)); | |
4259 | } | |
4260 | gfc_add_expr_to_block (init, tmp2); | |
4261 | } | |
4262 | ||
4263 | gfc_restore_backend_locus (loc); | |
4264 | ||
4265 | /* Pass the final character length back. */ | |
4266 | if (sym->attr.intent != INTENT_IN) | |
4267 | { | |
4268 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4269 | gfc_charlen_type_node, tmp, | |
4270 | sym->ts.u.cl->backend_decl); | |
4271 | if (sym->attr.optional) | |
4272 | { | |
4273 | tree present = gfc_conv_expr_present (sym); | |
4274 | tmp = build3_loc (input_location, COND_EXPR, | |
4275 | void_type_node, present, tmp, | |
4276 | build_empty_stmt (input_location)); | |
4277 | } | |
4278 | } | |
4279 | else | |
4280 | tmp = NULL_TREE; | |
4281 | ||
4282 | return tmp; | |
4283 | } | |
4284 | ||
9ead5324 | 4285 | |
37684a4c | 4286 | /* Convert CFI descriptor dummies into gfc types and back again. */ |
4287 | static void | |
4288 | convert_CFI_desc (gfc_wrapped_block * block, gfc_symbol *sym) | |
4289 | { | |
4290 | tree gfc_desc; | |
4291 | tree gfc_desc_ptr; | |
4292 | tree CFI_desc; | |
4293 | tree CFI_desc_ptr; | |
4294 | tree dummy_ptr; | |
4295 | tree tmp; | |
261e88be | 4296 | tree present; |
37684a4c | 4297 | tree incoming; |
4298 | tree outgoing; | |
261e88be | 4299 | stmtblock_t outer_block; |
37684a4c | 4300 | stmtblock_t tmpblock; |
4301 | ||
4302 | /* dummy_ptr will be the pointer to the passed array descriptor, | |
4303 | while CFI_desc is the descriptor itself. */ | |
4304 | if (DECL_LANG_SPECIFIC (sym->backend_decl)) | |
4305 | CFI_desc = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
4306 | else | |
4307 | CFI_desc = NULL; | |
4308 | ||
4309 | dummy_ptr = CFI_desc; | |
4310 | ||
4311 | if (CFI_desc) | |
4312 | { | |
4313 | CFI_desc = build_fold_indirect_ref_loc (input_location, CFI_desc); | |
4314 | ||
4315 | /* The compiler will have given CFI_desc the correct gfortran | |
4316 | type. Use this new variable to store the converted | |
4317 | descriptor. */ | |
4318 | gfc_desc = gfc_create_var (TREE_TYPE (CFI_desc), "gfc_desc"); | |
4319 | tmp = build_pointer_type (TREE_TYPE (gfc_desc)); | |
4320 | gfc_desc_ptr = gfc_create_var (tmp, "gfc_desc_ptr"); | |
4321 | CFI_desc_ptr = gfc_create_var (pvoid_type_node, "CFI_desc_ptr"); | |
4322 | ||
261e88be | 4323 | /* Fix the condition for the presence of the argument. */ |
4324 | gfc_init_block (&outer_block); | |
4325 | present = fold_build2_loc (input_location, NE_EXPR, | |
4326 | logical_type_node, dummy_ptr, | |
4327 | build_int_cst (TREE_TYPE (dummy_ptr), 0)); | |
4328 | ||
37684a4c | 4329 | gfc_init_block (&tmpblock); |
4330 | /* Pointer to the gfc descriptor. */ | |
4331 | gfc_add_modify (&tmpblock, gfc_desc_ptr, | |
4332 | gfc_build_addr_expr (NULL, gfc_desc)); | |
4333 | /* Store the pointer to the CFI descriptor. */ | |
4334 | gfc_add_modify (&tmpblock, CFI_desc_ptr, | |
4335 | fold_convert (pvoid_type_node, dummy_ptr)); | |
4336 | tmp = gfc_build_addr_expr (ppvoid_type_node, CFI_desc_ptr); | |
4337 | /* Convert the CFI descriptor. */ | |
4338 | incoming = build_call_expr_loc (input_location, | |
4339 | gfor_fndecl_cfi_to_gfc, 2, gfc_desc_ptr, tmp); | |
4340 | gfc_add_expr_to_block (&tmpblock, incoming); | |
4341 | /* Set the dummy pointer to point to the gfc_descriptor. */ | |
4342 | gfc_add_modify (&tmpblock, dummy_ptr, | |
4343 | fold_convert (TREE_TYPE (dummy_ptr), gfc_desc_ptr)); | |
37684a4c | 4344 | |
261e88be | 4345 | /* The hidden string length is not passed to bind(C) procedures so set |
4346 | it from the descriptor element length. */ | |
4347 | if (sym->ts.type == BT_CHARACTER | |
4348 | && sym->ts.u.cl->backend_decl | |
4349 | && VAR_P (sym->ts.u.cl->backend_decl)) | |
4350 | { | |
4351 | tmp = build_fold_indirect_ref_loc (input_location, dummy_ptr); | |
4352 | tmp = gfc_conv_descriptor_elem_len (tmp); | |
4353 | gfc_add_modify (&tmpblock, sym->ts.u.cl->backend_decl, | |
4354 | fold_convert (TREE_TYPE (sym->ts.u.cl->backend_decl), | |
4355 | tmp)); | |
4356 | } | |
4357 | ||
4358 | /* Check that the argument is present before executing the above. */ | |
4359 | incoming = build3_v (COND_EXPR, present, | |
4360 | gfc_finish_block (&tmpblock), | |
4361 | build_empty_stmt (input_location)); | |
4362 | gfc_add_expr_to_block (&outer_block, incoming); | |
4363 | incoming = gfc_finish_block (&outer_block); | |
4364 | ||
4365 | ||
37684a4c | 4366 | /* Convert the gfc descriptor back to the CFI type before going |
261e88be | 4367 | out of scope, if the CFI type was present at entry. */ |
4368 | gfc_init_block (&outer_block); | |
4369 | gfc_init_block (&tmpblock); | |
4370 | ||
37684a4c | 4371 | tmp = gfc_build_addr_expr (ppvoid_type_node, CFI_desc_ptr); |
4372 | outgoing = build_call_expr_loc (input_location, | |
4373 | gfor_fndecl_gfc_to_cfi, 2, tmp, gfc_desc_ptr); | |
4374 | gfc_add_expr_to_block (&tmpblock, outgoing); | |
261e88be | 4375 | |
4376 | outgoing = build3_v (COND_EXPR, present, | |
4377 | gfc_finish_block (&tmpblock), | |
4378 | build_empty_stmt (input_location)); | |
4379 | gfc_add_expr_to_block (&outer_block, outgoing); | |
4380 | outgoing = gfc_finish_block (&outer_block); | |
37684a4c | 4381 | |
4382 | /* Add the lot to the procedure init and finally blocks. */ | |
4383 | gfc_add_init_cleanup (block, incoming, outgoing); | |
4384 | } | |
4385 | } | |
4386 | ||
9ead5324 | 4387 | /* Get the result expression for a procedure. */ |
4388 | ||
4389 | static tree | |
4390 | get_proc_result (gfc_symbol* sym) | |
4391 | { | |
4392 | if (sym->attr.subroutine || sym == sym->result) | |
4393 | { | |
4394 | if (current_fake_result_decl != NULL) | |
4395 | return TREE_VALUE (current_fake_result_decl); | |
4396 | ||
4397 | return NULL_TREE; | |
4398 | } | |
4399 | ||
4400 | return sym->result->backend_decl; | |
4401 | } | |
4402 | ||
4403 | ||
4ee9c684 | 4404 | /* Generate function entry and exit code, and add it to the function body. |
4405 | This includes: | |
f888a3fb | 4406 | Allocation and initialization of array variables. |
4ee9c684 | 4407 | Allocation of character string variables. |
c8f1568f | 4408 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 4409 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 4410 | Initialization of ASSOCIATE names. |
0a96a7cc | 4411 | Automatic deallocation. */ |
4ee9c684 | 4412 | |
89ac8ba1 | 4413 | void |
4414 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 4415 | { |
4416 | locus loc; | |
4417 | gfc_symbol *sym; | |
d4163395 | 4418 | gfc_formal_arglist *f; |
c5faa799 | 4419 | stmtblock_t tmpblock; |
25dd7350 | 4420 | bool seen_trans_deferred_array = false; |
9d958d5b | 4421 | bool is_pdt_type = false; |
617125a6 | 4422 | tree tmp = NULL; |
4423 | gfc_expr *e; | |
4424 | gfc_se se; | |
4425 | stmtblock_t init; | |
4ee9c684 | 4426 | |
4427 | /* Deal with implicit return variables. Explicit return variables will | |
4428 | already have been added. */ | |
4429 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4430 | { | |
4431 | if (!current_fake_result_decl) | |
4432 | { | |
c6871095 | 4433 | gfc_entry_list *el = NULL; |
4434 | if (proc_sym->attr.entry_master) | |
4435 | { | |
4436 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4437 | if (el->sym != el->sym->result) | |
4438 | break; | |
4439 | } | |
fa7b6574 | 4440 | /* TODO: move to the appropriate place in resolve.c. */ |
8b72061f | 4441 | if (warn_return_type > 0 && el == NULL) |
4166acc7 | 4442 | gfc_warning (OPT_Wreturn_type, |
4443 | "Return value of function %qs at %L not set", | |
fa7b6574 | 4444 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 4445 | } |
c6871095 | 4446 | else if (proc_sym->as) |
4ee9c684 | 4447 | { |
d4163395 | 4448 | tree result = TREE_VALUE (current_fake_result_decl); |
9da84a54 | 4449 | gfc_save_backend_locus (&loc); |
4450 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4451 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 4452 | |
4453 | /* An automatic character length, pointer array result. */ | |
4454 | if (proc_sym->ts.type == BT_CHARACTER | |
fe732a9b | 4455 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
b345a09f | 4456 | { |
4457 | tmp = NULL; | |
4458 | if (proc_sym->ts.deferred) | |
4459 | { | |
b345a09f | 4460 | gfc_start_block (&init); |
4461 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4462 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4463 | } | |
4464 | else | |
4465 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4466 | } | |
4ee9c684 | 4467 | } |
4468 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4469 | { | |
617125a6 | 4470 | if (proc_sym->ts.deferred) |
4471 | { | |
4472 | tmp = NULL; | |
da2c4122 | 4473 | gfc_save_backend_locus (&loc); |
4474 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 4475 | gfc_start_block (&init); |
4476 | /* Zero the string length on entry. */ | |
4477 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4478 | build_int_cst (gfc_charlen_type_node, 0)); | |
4479 | /* Null the pointer. */ | |
4480 | e = gfc_lval_expr_from_sym (proc_sym); | |
4481 | gfc_init_se (&se, NULL); | |
4482 | se.want_pointer = 1; | |
4483 | gfc_conv_expr (&se, e); | |
4484 | gfc_free_expr (e); | |
4485 | tmp = se.expr; | |
4486 | gfc_add_modify (&init, tmp, | |
4487 | fold_convert (TREE_TYPE (se.expr), | |
4488 | null_pointer_node)); | |
da2c4122 | 4489 | gfc_restore_backend_locus (&loc); |
617125a6 | 4490 | |
4491 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 4492 | tmp = proc_sym->ts.u.cl->backend_decl; |
b345a09f | 4493 | if (TREE_CODE (tmp) != INDIRECT_REF |
4494 | && proc_sym->ts.u.cl->passed_length) | |
ddcfeaf1 | 4495 | { |
a4731200 | 4496 | tmp = proc_sym->ts.u.cl->passed_length; |
4497 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
a4731200 | 4498 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
9f4d9f83 | 4499 | TREE_TYPE (tmp), tmp, |
4500 | fold_convert | |
4501 | (TREE_TYPE (tmp), | |
4502 | proc_sym->ts.u.cl->backend_decl)); | |
ddcfeaf1 | 4503 | } |
4504 | else | |
4505 | tmp = NULL_TREE; | |
4506 | ||
617125a6 | 4507 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4508 | } | |
fe732a9b | 4509 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
89ac8ba1 | 4510 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4511 | } |
4512 | else | |
829d7a08 | 4513 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4514 | } |
9ead5324 | 4515 | else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym)) |
4516 | { | |
4517 | /* Nullify explicit return class arrays on entry. */ | |
4518 | tree type; | |
4519 | tmp = get_proc_result (proc_sym); | |
4520 | if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp))) | |
4521 | { | |
4522 | gfc_start_block (&init); | |
4523 | tmp = gfc_class_data_get (tmp); | |
4524 | type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp)); | |
4525 | gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0)); | |
4526 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); | |
4527 | } | |
4528 | } | |
4529 | ||
4ee9c684 | 4530 | |
87114d2e | 4531 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4532 | should be done here so that the offsets and lbounds of arrays | |
4533 | are available. */ | |
da2c4122 | 4534 | gfc_save_backend_locus (&loc); |
4535 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4536 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4537 | gfc_restore_backend_locus (&loc); |
87114d2e | 4538 | |
4ee9c684 | 4539 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4540 | { | |
6b3ceb4e | 4541 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4542 | && (sym->ts.u.derived->attr.alloc_comp | |
4543 | || gfc_is_finalizable (sym->ts.u.derived, | |
4544 | NULL)); | |
8f3f9eab | 4545 | if (sym->assoc) |
3c82e013 | 4546 | continue; |
4547 | ||
9d958d5b | 4548 | if (sym->ts.type == BT_DERIVED |
4549 | && sym->ts.u.derived | |
4550 | && sym->ts.u.derived->attr.pdt_type) | |
4551 | { | |
4552 | is_pdt_type = true; | |
4553 | gfc_init_block (&tmpblock); | |
4554 | if (!(sym->attr.dummy | |
4555 | || sym->attr.pointer | |
4556 | || sym->attr.allocatable)) | |
4557 | { | |
4558 | tmp = gfc_allocate_pdt_comp (sym->ts.u.derived, | |
4559 | sym->backend_decl, | |
4560 | sym->as ? sym->as->rank : 0, | |
4561 | sym->param_list); | |
4562 | gfc_add_expr_to_block (&tmpblock, tmp); | |
2222c3ab | 4563 | if (!sym->attr.result) |
4564 | tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived, | |
4565 | sym->backend_decl, | |
4566 | sym->as ? sym->as->rank : 0); | |
4567 | else | |
4568 | tmp = NULL_TREE; | |
9d958d5b | 4569 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4570 | } | |
4571 | else if (sym->attr.dummy) | |
4572 | { | |
4573 | tmp = gfc_check_pdt_dummy (sym->ts.u.derived, | |
4574 | sym->backend_decl, | |
4575 | sym->as ? sym->as->rank : 0, | |
4576 | sym->param_list); | |
4577 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4578 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4579 | } | |
4580 | } | |
4581 | else if (sym->ts.type == BT_CLASS | |
4582 | && CLASS_DATA (sym)->ts.u.derived | |
4583 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type) | |
4584 | { | |
4585 | gfc_component *data = CLASS_DATA (sym); | |
4586 | is_pdt_type = true; | |
4587 | gfc_init_block (&tmpblock); | |
4588 | if (!(sym->attr.dummy | |
4589 | || CLASS_DATA (sym)->attr.pointer | |
4590 | || CLASS_DATA (sym)->attr.allocatable)) | |
4591 | { | |
4592 | tmp = gfc_class_data_get (sym->backend_decl); | |
4593 | tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp, | |
4594 | data->as ? data->as->rank : 0, | |
4595 | sym->param_list); | |
4596 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4597 | tmp = gfc_class_data_get (sym->backend_decl); | |
2222c3ab | 4598 | if (!sym->attr.result) |
4599 | tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp, | |
4600 | data->as ? data->as->rank : 0); | |
4601 | else | |
4602 | tmp = NULL_TREE; | |
9d958d5b | 4603 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4604 | } | |
4605 | else if (sym->attr.dummy) | |
4606 | { | |
4607 | tmp = gfc_class_data_get (sym->backend_decl); | |
4608 | tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp, | |
4609 | data->as ? data->as->rank : 0, | |
4610 | sym->param_list); | |
4611 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4612 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4613 | } | |
4614 | } | |
4615 | ||
47e6a59a | 4616 | if (sym->attr.pointer && sym->attr.dimension |
0a5fd921 | 4617 | && sym->attr.save == SAVE_NONE |
47e6a59a | 4618 | && !sym->attr.use_assoc |
4619 | && !sym->attr.host_assoc | |
4620 | && !sym->attr.dummy | |
4621 | && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))) | |
a56d63bc | 4622 | { |
4623 | gfc_init_block (&tmpblock); | |
47e6a59a | 4624 | gfc_conv_descriptor_span_set (&tmpblock, sym->backend_decl, |
4625 | build_int_cst (gfc_array_index_type, 0)); | |
a56d63bc | 4626 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
4627 | NULL_TREE); | |
4628 | } | |
4629 | ||
85ae3cab | 4630 | if (sym->ts.type == BT_CLASS |
eb106faf | 4631 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4632 | && CLASS_DATA (sym)->attr.allocatable) |
4633 | { | |
4634 | tree vptr; | |
4635 | ||
4636 | if (UNLIMITED_POLY (sym)) | |
4637 | vptr = null_pointer_node; | |
4638 | else | |
4639 | { | |
4640 | gfc_symbol *vsym; | |
4641 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4642 | vptr = gfc_get_symbol_decl (vsym); | |
4643 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4644 | } | |
4645 | ||
4646 | if (CLASS_DATA (sym)->attr.dimension | |
4647 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4648 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4649 | { |
4650 | tmp = gfc_class_data_get (sym->backend_decl); | |
4651 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4652 | } | |
4653 | else | |
4654 | tmp = null_pointer_node; | |
4655 | ||
4656 | DECL_INITIAL (sym->backend_decl) | |
4657 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4658 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4659 | } | |
b345a09f | 4660 | else if ((sym->attr.dimension || sym->attr.codimension |
4661 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
4ee9c684 | 4662 | { |
c6793847 | 4663 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4664 | symbol_attribute *array_attr; | |
4665 | gfc_array_spec *as; | |
b345a09f | 4666 | array_type type_of_array; |
c6793847 | 4667 | |
4668 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4669 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4670 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
b345a09f | 4671 | type_of_array = as->type; |
4672 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4673 | type_of_array = AS_EXPLICIT; | |
4674 | switch (type_of_array) | |
4ee9c684 | 4675 | { |
4676 | case AS_EXPLICIT: | |
4677 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4678 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4679 | /* Allocatable and pointer arrays need to processed |
4680 | explicitly. */ | |
4681 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4682 | || (sym->ts.type == BT_CLASS | |
4683 | && CLASS_DATA (sym)->attr.class_pointer) | |
4684 | || array_attr->allocatable) | |
4ee9c684 | 4685 | { |
4686 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4687 | { |
4688 | gfc_save_backend_locus (&loc); | |
4689 | gfc_set_backend_locus (&sym->declared_at); | |
4690 | gfc_trans_static_array_pointer (sym); | |
4691 | gfc_restore_backend_locus (&loc); | |
4692 | } | |
4ee9c684 | 4693 | else |
25dd7350 | 4694 | { |
4695 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4696 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4697 | } |
4ee9c684 | 4698 | } |
c6793847 | 4699 | else if (sym->attr.codimension |
4700 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4701 | { |
4702 | gfc_init_block (&tmpblock); | |
4703 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4704 | &tmpblock, sym); | |
4705 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4706 | NULL_TREE); | |
4707 | continue; | |
4708 | } | |
197423f5 | 4709 | else |
4ee9c684 | 4710 | { |
da2c4122 | 4711 | gfc_save_backend_locus (&loc); |
4712 | gfc_set_backend_locus (&sym->declared_at); | |
4713 | ||
6b3ceb4e | 4714 | if (alloc_comp_or_fini) |
25dd7350 | 4715 | { |
4716 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4717 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4718 | } |
f0d4969f | 4719 | else if (sym->ts.type == BT_DERIVED |
4720 | && sym->value | |
4721 | && !sym->attr.data | |
4722 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4723 | { |
4724 | gfc_start_block (&tmpblock); | |
4725 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4726 | gfc_add_init_cleanup (block, |
c5faa799 | 4727 | gfc_finish_block (&tmpblock), |
4728 | NULL_TREE); | |
4729 | } | |
25dd7350 | 4730 | |
c5faa799 | 4731 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4732 | sym, block); |
4671339c | 4733 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4734 | } |
4735 | break; | |
4736 | ||
4737 | case AS_ASSUMED_SIZE: | |
4738 | /* Must be a dummy parameter. */ | |
c6793847 | 4739 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4740 | |
4741 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4742 | if (sym->attr.dummy) |
89ac8ba1 | 4743 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4744 | break; |
4ee9c684 | 4745 | |
4746 | case AS_ASSUMED_SHAPE: | |
4747 | /* Must be a dummy parameter. */ | |
22d678e8 | 4748 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4749 | |
89ac8ba1 | 4750 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4751 | break; |
4752 | ||
f00f6dd6 | 4753 | case AS_ASSUMED_RANK: |
4ee9c684 | 4754 | case AS_DEFERRED: |
25dd7350 | 4755 | seen_trans_deferred_array = true; |
89ac8ba1 | 4756 | gfc_trans_deferred_array (sym, block); |
b345a09f | 4757 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4758 | && sym->attr.result) | |
4759 | { | |
4760 | gfc_start_block (&init); | |
4761 | gfc_save_backend_locus (&loc); | |
4762 | gfc_set_backend_locus (&sym->declared_at); | |
4763 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4764 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4765 | } | |
4ee9c684 | 4766 | break; |
4767 | ||
4768 | default: | |
22d678e8 | 4769 | gcc_unreachable (); |
4ee9c684 | 4770 | } |
6b3ceb4e | 4771 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4772 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4773 | } |
fd23cc08 | 4774 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4775 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4776 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4777 | continue; |
617125a6 | 4778 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4779 | && (sym->attr.allocatable |
b345a09f | 4780 | || (sym->attr.pointer && sym->attr.result) |
456dd7d6 | 4781 | || (sym->ts.type == BT_CLASS |
4782 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4783 | { |
eb106faf | 4784 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4785 | { |
d0d776fb | 4786 | tree descriptor = NULL_TREE; |
4787 | ||
da2c4122 | 4788 | gfc_save_backend_locus (&loc); |
4789 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4790 | gfc_start_block (&init); |
617125a6 | 4791 | |
9fe80e30 | 4792 | if (sym->ts.type == BT_CHARACTER |
4793 | && sym->attr.allocatable | |
4794 | && !sym->attr.dimension | |
4795 | && sym->ts.u.cl && sym->ts.u.cl->length | |
4796 | && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE) | |
4797 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); | |
4798 | ||
b345a09f | 4799 | if (!sym->attr.pointer) |
617125a6 | 4800 | { |
b345a09f | 4801 | /* Nullify and automatic deallocation of allocatable |
4802 | scalars. */ | |
4803 | e = gfc_lval_expr_from_sym (sym); | |
4804 | if (sym->ts.type == BT_CLASS) | |
4805 | gfc_add_data_component (e); | |
4806 | ||
4807 | gfc_init_se (&se, NULL); | |
4808 | if (sym->ts.type != BT_CLASS | |
4809 | || sym->ts.u.derived->attr.dimension | |
4810 | || sym->ts.u.derived->attr.codimension) | |
883d6776 | 4811 | { |
b345a09f | 4812 | se.want_pointer = 1; |
4813 | gfc_conv_expr (&se, e); | |
4814 | } | |
4815 | else if (sym->ts.type == BT_CLASS | |
4816 | && !CLASS_DATA (sym)->attr.dimension | |
4817 | && !CLASS_DATA (sym)->attr.codimension) | |
4818 | { | |
4819 | se.want_pointer = 1; | |
4820 | gfc_conv_expr (&se, e); | |
883d6776 | 4821 | } |
617125a6 | 4822 | else |
883d6776 | 4823 | { |
b345a09f | 4824 | se.descriptor_only = 1; |
4825 | gfc_conv_expr (&se, e); | |
4826 | descriptor = se.expr; | |
4827 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4828 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
883d6776 | 4829 | } |
b345a09f | 4830 | gfc_free_expr (e); |
617125a6 | 4831 | |
b345a09f | 4832 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
883d6776 | 4833 | { |
b345a09f | 4834 | /* Nullify when entering the scope. */ |
883d6776 | 4835 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
b345a09f | 4836 | TREE_TYPE (se.expr), se.expr, |
4837 | fold_convert (TREE_TYPE (se.expr), | |
4838 | null_pointer_node)); | |
883d6776 | 4839 | if (sym->attr.optional) |
4840 | { | |
4841 | tree present = gfc_conv_expr_present (sym); | |
4842 | tmp = build3_loc (input_location, COND_EXPR, | |
4843 | void_type_node, present, tmp, | |
4844 | build_empty_stmt (input_location)); | |
4845 | } | |
b345a09f | 4846 | gfc_add_expr_to_block (&init, tmp); |
883d6776 | 4847 | } |
617125a6 | 4848 | } |
b345a09f | 4849 | |
4850 | if ((sym->attr.dummy || sym->attr.result) | |
4851 | && sym->ts.type == BT_CHARACTER | |
4852 | && sym->ts.deferred | |
4853 | && sym->ts.u.cl->passed_length) | |
4854 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
da2c4122 | 4855 | else |
8c089b5c | 4856 | { |
4857 | gfc_restore_backend_locus (&loc); | |
4858 | tmp = NULL_TREE; | |
4859 | } | |
908e9973 | 4860 | |
4861 | /* Deallocate when leaving the scope. Nullifying is not | |
4862 | needed. */ | |
b345a09f | 4863 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
afb69dbf | 4864 | && !sym->ns->proc_name->attr.is_main_program) |
d0d776fb | 4865 | { |
4866 | if (sym->ts.type == BT_CLASS | |
4867 | && CLASS_DATA (sym)->attr.codimension) | |
4868 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4869 | NULL_TREE, NULL_TREE, | |
4870 | NULL_TREE, true, NULL, | |
3d2aa0e8 | 4871 | GFC_CAF_COARRAY_ANALYZE); |
d0d776fb | 4872 | else |
c23adf93 | 4873 | { |
4874 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
3d2aa0e8 | 4875 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4876 | NULL_TREE, | |
4877 | NULL_TREE, | |
4878 | true, expr, | |
4879 | sym->ts); | |
c23adf93 | 4880 | gfc_free_expr (expr); |
4881 | } | |
d0d776fb | 4882 | } |
b345a09f | 4883 | |
afc44c79 | 4884 | if (sym->ts.type == BT_CLASS) |
4885 | { | |
4886 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4887 | gfc_symbol *vtab; |
afc44c79 | 4888 | tree rhs; |
da2c4122 | 4889 | |
4890 | gfc_save_backend_locus (&loc); | |
4891 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4892 | e = gfc_lval_expr_from_sym (sym); |
4893 | gfc_add_vptr_component (e); | |
4894 | gfc_init_se (&se, NULL); | |
4895 | se.want_pointer = 1; | |
4896 | gfc_conv_expr (&se, e); | |
4897 | gfc_free_expr (e); | |
a90fe829 | 4898 | if (UNLIMITED_POLY (sym)) |
4899 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4900 | else | |
4901 | { | |
4902 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4903 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4904 | gfc_get_symbol_decl (vtab)); | |
4905 | } | |
afc44c79 | 4906 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4907 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4908 | } |
4909 | ||
89ac8ba1 | 4910 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4911 | } |
0a96a7cc | 4912 | } |
617125a6 | 4913 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4914 | { | |
4915 | tree tmp = NULL; | |
4916 | stmtblock_t init; | |
4917 | ||
4918 | /* If we get to here, all that should be left are pointers. */ | |
4919 | gcc_assert (sym->attr.pointer); | |
4920 | ||
4921 | if (sym->attr.dummy) | |
4922 | { | |
4923 | gfc_start_block (&init); | |
b345a09f | 4924 | gfc_save_backend_locus (&loc); |
4925 | gfc_set_backend_locus (&sym->declared_at); | |
4926 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
617125a6 | 4927 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4928 | } | |
4929 | } | |
3e715c81 | 4930 | else if (sym->ts.deferred) |
4931 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4932 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4933 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4934 | else if (sym->ts.type == BT_CHARACTER) |
4935 | { | |
4671339c | 4936 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4937 | gfc_set_backend_locus (&sym->declared_at); |
4938 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4939 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4940 | else |
89ac8ba1 | 4941 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4942 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4943 | } |
c8f1568f | 4944 | else if (sym->attr.assign) |
4945 | { | |
4671339c | 4946 | gfc_save_backend_locus (&loc); |
c8f1568f | 4947 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4948 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4949 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4950 | } |
f0d4969f | 4951 | else if (sym->ts.type == BT_DERIVED |
4952 | && sym->value | |
4953 | && !sym->attr.data | |
4954 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4955 | { |
4956 | gfc_start_block (&tmpblock); | |
4957 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4958 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4959 | NULL_TREE); |
4960 | } | |
9d958d5b | 4961 | else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type) |
22d678e8 | 4962 | gcc_unreachable (); |
37684a4c | 4963 | |
4964 | /* Assumed shape and assumed rank arrays are passed to BIND(C) procedures | |
4965 | as ISO Fortran Interop descriptors. These have to be converted to | |
4966 | gfortran descriptors and back again. This has to be done here so that | |
4967 | the conversion occurs at the start of the init block. */ | |
4968 | if (is_CFI_desc (sym, NULL)) | |
4969 | convert_CFI_desc (block, sym); | |
4ee9c684 | 4970 | } |
4971 | ||
c5faa799 | 4972 | gfc_init_block (&tmpblock); |
d4163395 | 4973 | |
6777213b | 4974 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4975 | { |
261e88be | 4976 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER |
4977 | && f->sym->ts.u.cl->backend_decl) | |
1e853e89 | 4978 | { |
eeebe20b | 4979 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) |
c5faa799 | 4980 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4981 | } |
1e853e89 | 4982 | } |
d4163395 | 4983 | |
4984 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4985 | && current_fake_result_decl != NULL) | |
4986 | { | |
eeebe20b | 4987 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4988 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4989 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4990 | } |
4991 | ||
89ac8ba1 | 4992 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4993 | } |
4994 | ||
b345a09f | 4995 | |
b594087e | 4996 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4997 | { |
2ef51f0e | 4998 | typedef const char *compare_type; |
df4d540f | 4999 | |
aa63245e | 5000 | static hashval_t hash (module_htab_entry *s) |
5001 | { | |
5002 | return htab_hash_string (s->name); | |
5003 | } | |
5004 | ||
2ef51f0e | 5005 | static bool |
5006 | equal (module_htab_entry *a, const char *b) | |
5007 | { | |
5008 | return !strcmp (a->name, b); | |
5009 | } | |
5010 | }; | |
5011 | ||
5012 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 5013 | |
5014 | /* Hash and equality functions for module_htab's decls. */ | |
5015 | ||
2ef51f0e | 5016 | hashval_t |
5017 | module_decl_hasher::hash (tree t) | |
df4d540f | 5018 | { |
df4d540f | 5019 | const_tree n = DECL_NAME (t); |
5020 | if (n == NULL_TREE) | |
5021 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 5022 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 5023 | } |
5024 | ||
2ef51f0e | 5025 | bool |
5026 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 5027 | { |
df4d540f | 5028 | const_tree n1 = DECL_NAME (t1); |
5029 | if (n1 == NULL_TREE) | |
5030 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 5031 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 5032 | } |
5033 | ||
5034 | struct module_htab_entry * | |
5035 | gfc_find_module (const char *name) | |
5036 | { | |
df4d540f | 5037 | if (! module_htab) |
2ef51f0e | 5038 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 5039 | |
2ef51f0e | 5040 | module_htab_entry **slot |
5041 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 5042 | if (*slot == NULL) |
5043 | { | |
25a27413 | 5044 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 5045 | |
dc326dc0 | 5046 | entry->name = gfc_get_string ("%s", name); |
2ef51f0e | 5047 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
5048 | *slot = entry; | |
df4d540f | 5049 | } |
2ef51f0e | 5050 | return *slot; |
df4d540f | 5051 | } |
5052 | ||
5053 | void | |
5054 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
5055 | { | |
df4d540f | 5056 | const char *name; |
5057 | ||
5058 | if (DECL_NAME (decl)) | |
5059 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
5060 | else | |
5061 | { | |
5062 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
5063 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
5064 | } | |
2ef51f0e | 5065 | tree *slot |
5066 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
5067 | INSERT); | |
df4d540f | 5068 | if (*slot == NULL) |
2ef51f0e | 5069 | *slot = decl; |
df4d540f | 5070 | } |
5071 | ||
c40a5c1b | 5072 | |
5073 | /* Generate debugging symbols for namelists. This function must come after | |
5074 | generate_local_decl to ensure that the variables in the namelist are | |
5075 | already declared. */ | |
5076 | ||
5077 | static tree | |
5078 | generate_namelist_decl (gfc_symbol * sym) | |
5079 | { | |
5080 | gfc_namelist *nml; | |
5081 | tree decl; | |
5082 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
5083 | ||
5084 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
5085 | for (nml = sym->namelist; nml; nml = nml->next) | |
5086 | { | |
5087 | if (nml->sym->backend_decl == NULL_TREE) | |
5088 | { | |
5089 | nml->sym->attr.referenced = 1; | |
5090 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
5091 | } | |
0a32260c | 5092 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 5093 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
5094 | } | |
5095 | ||
5096 | decl = make_node (NAMELIST_DECL); | |
5097 | TREE_TYPE (decl) = void_type_node; | |
5098 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
5099 | DECL_NAME (decl) = get_identifier (sym->name); | |
5100 | return decl; | |
5101 | } | |
5102 | ||
5103 | ||
4ee9c684 | 5104 | /* Output an initialized decl for a module variable. */ |
5105 | ||
5106 | static void | |
5107 | gfc_create_module_variable (gfc_symbol * sym) | |
5108 | { | |
5109 | tree decl; | |
4ee9c684 | 5110 | |
d77f260f | 5111 | /* Module functions with alternate entries are dealt with later and |
5112 | would get caught by the next condition. */ | |
5113 | if (sym->attr.entry) | |
5114 | return; | |
5115 | ||
c5d33754 | 5116 | /* Make sure we convert the types of the derived types from iso_c_binding |
5117 | into (void *). */ | |
5118 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5119 | && sym->ts.type == BT_DERIVED) | |
5120 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
5121 | ||
d7cd448a | 5122 | if (gfc_fl_struct (sym->attr.flavor) |
df4d540f | 5123 | && sym->backend_decl |
5124 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
5125 | { | |
5126 | decl = sym->backend_decl; | |
5127 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 5128 | |
fe9d2f5a | 5129 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 5130 | { |
5131 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
5132 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
5133 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
5134 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
5135 | == sym->ns->proc_name->backend_decl); | |
5136 | } | |
df4d540f | 5137 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
5138 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
5139 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
5140 | } | |
5141 | ||
cf269acc | 5142 | /* Only output variables, procedure pointers and array valued, |
5143 | or derived type, parameters. */ | |
4ee9c684 | 5144 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 5145 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 5146 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
5147 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 5148 | return; |
5149 | ||
df4d540f | 5150 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
5151 | { | |
5152 | decl = sym->backend_decl; | |
16a40513 | 5153 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 5154 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
5155 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5156 | gfc_module_add_decl (cur_module, decl); | |
5157 | } | |
5158 | ||
d43a7f7f | 5159 | /* Don't generate variables from other modules. Variables from |
cd958916 | 5160 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 5161 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
5162 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 5163 | return; |
5164 | ||
2b685f8e | 5165 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 5166 | if (sym->backend_decl |
df4d540f | 5167 | && (sym->equiv_built || sym->attr.in_equivalence)) |
5168 | return; | |
2b685f8e | 5169 | |
23d075f4 | 5170 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 5171 | gfc_internal_error ("backend decl for module variable %qs already exists", |
5172 | sym->name); | |
4ee9c684 | 5173 | |
92983bfd | 5174 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
5175 | && (sym->attr.access == ACCESS_UNKNOWN | |
5176 | && (sym->ns->default_access == ACCESS_PRIVATE | |
5177 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 5178 | && flag_module_private)))) |
92983bfd | 5179 | sym->attr.access = ACCESS_PRIVATE; |
5180 | ||
5181 | if (warn_unused_variable && !sym->attr.referenced | |
5182 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 5183 | gfc_warning (OPT_Wunused_value, |
5184 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 5185 | sym->name, &sym->declared_at); |
5186 | ||
4ee9c684 | 5187 | /* We always want module variables to be created. */ |
5188 | sym->attr.referenced = 1; | |
5189 | /* Create the decl. */ | |
5190 | decl = gfc_get_symbol_decl (sym); | |
5191 | ||
4ee9c684 | 5192 | /* Create the variable. */ |
5193 | pushdecl (decl); | |
8b7e5587 | 5194 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
5195 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
5196 | && sym->fn_result_spec)); | |
df4d540f | 5197 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
b2c4af5e | 5198 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 5199 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 5200 | |
5201 | /* Also add length of strings. */ | |
5202 | if (sym->ts.type == BT_CHARACTER) | |
5203 | { | |
5204 | tree length; | |
5205 | ||
eeebe20b | 5206 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 5207 | gcc_assert (length || sym->attr.proc_pointer); |
5208 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 5209 | { |
5210 | pushdecl (length); | |
b2c4af5e | 5211 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 5212 | } |
5213 | } | |
a961ca30 | 5214 | |
5215 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
5216 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5217 | has_coarray_vars = true; | |
4ee9c684 | 5218 | } |
5219 | ||
51d9479b | 5220 | /* Emit debug information for USE statements. */ |
df4d540f | 5221 | |
5222 | static void | |
5223 | gfc_trans_use_stmts (gfc_namespace * ns) | |
5224 | { | |
5225 | gfc_use_list *use_stmt; | |
5226 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
5227 | { | |
5228 | struct module_htab_entry *entry | |
5229 | = gfc_find_module (use_stmt->module_name); | |
5230 | gfc_use_rename *rent; | |
5231 | ||
5232 | if (entry->namespace_decl == NULL) | |
5233 | { | |
5234 | entry->namespace_decl | |
e60a6f7b | 5235 | = build_decl (input_location, |
5236 | NAMESPACE_DECL, | |
df4d540f | 5237 | get_identifier (use_stmt->module_name), |
5238 | void_type_node); | |
5239 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
5240 | } | |
51d9479b | 5241 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 5242 | if (!use_stmt->only_flag) |
5243 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
5244 | NULL_TREE, | |
5245 | ns->proc_name->backend_decl, | |
41d01e67 | 5246 | false, false); |
df4d540f | 5247 | for (rent = use_stmt->rename; rent; rent = rent->next) |
5248 | { | |
5249 | tree decl, local_name; | |
df4d540f | 5250 | |
5251 | if (rent->op != INTRINSIC_NONE) | |
5252 | continue; | |
5253 | ||
2ef51f0e | 5254 | hashval_t hash = htab_hash_string (rent->use_name); |
5255 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
5256 | INSERT); | |
df4d540f | 5257 | if (*slot == NULL) |
5258 | { | |
5259 | gfc_symtree *st; | |
5260 | ||
5261 | st = gfc_find_symtree (ns->sym_root, | |
5262 | rent->local_name[0] | |
5263 | ? rent->local_name : rent->use_name); | |
c2958b6b | 5264 | |
5265 | /* The following can happen if a derived type is renamed. */ | |
5266 | if (!st) | |
5267 | { | |
5268 | char *name; | |
5269 | name = xstrdup (rent->local_name[0] | |
5270 | ? rent->local_name : rent->use_name); | |
5271 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
5272 | st = gfc_find_symtree (ns->sym_root, name); | |
5273 | free (name); | |
5274 | gcc_assert (st); | |
5275 | } | |
857c96ba | 5276 | |
5277 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
5278 | local symbol (see PR41062). */ | |
5279 | if (!st->n.sym->attr.use_assoc) | |
5280 | continue; | |
5281 | ||
51d9479b | 5282 | if (st->n.sym->backend_decl |
5283 | && DECL_P (st->n.sym->backend_decl) | |
5284 | && st->n.sym->module | |
5285 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 5286 | { |
51d9479b | 5287 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
fe732a9b | 5288 | || !VAR_P (st->n.sym->backend_decl)); |
df4d540f | 5289 | decl = copy_node (st->n.sym->backend_decl); |
5290 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5291 | DECL_EXTERNAL (decl) = 1; | |
5292 | DECL_IGNORED_P (decl) = 0; | |
5293 | DECL_INITIAL (decl) = NULL_TREE; | |
5294 | } | |
c40a5c1b | 5295 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
5296 | && st->n.sym->attr.use_only | |
5297 | && st->n.sym->module | |
5298 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
5299 | == 0) | |
5300 | { | |
5301 | decl = generate_namelist_decl (st->n.sym); | |
5302 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5303 | DECL_EXTERNAL (decl) = 1; | |
5304 | DECL_IGNORED_P (decl) = 0; | |
5305 | DECL_INITIAL (decl) = NULL_TREE; | |
5306 | } | |
df4d540f | 5307 | else |
5308 | { | |
5309 | *slot = error_mark_node; | |
2ef51f0e | 5310 | entry->decls->clear_slot (slot); |
df4d540f | 5311 | continue; |
5312 | } | |
5313 | *slot = decl; | |
5314 | } | |
5315 | decl = (tree) *slot; | |
5316 | if (rent->local_name[0]) | |
5317 | local_name = get_identifier (rent->local_name); | |
5318 | else | |
5319 | local_name = NULL_TREE; | |
51d9479b | 5320 | gfc_set_backend_locus (&rent->where); |
df4d540f | 5321 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
5322 | ns->proc_name->backend_decl, | |
41d01e67 | 5323 | !use_stmt->only_flag, |
5324 | false); | |
df4d540f | 5325 | } |
5326 | } | |
4ee9c684 | 5327 | } |
5328 | ||
51d9479b | 5329 | |
2eb674c9 | 5330 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
5331 | will handle. */ | |
5332 | ||
5333 | static bool | |
5334 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
5335 | bool pointer) | |
5336 | { | |
5337 | gfc_constructor *c; | |
5338 | gfc_component *cm; | |
5339 | ||
5340 | if (pointer) | |
5341 | return true; | |
5342 | else if (array) | |
5343 | { | |
5344 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
5345 | return true; | |
5346 | else if (expr->expr_type == EXPR_STRUCTURE) | |
5347 | return check_constant_initializer (expr, ts, false, false); | |
5348 | else if (expr->expr_type != EXPR_ARRAY) | |
5349 | return false; | |
126387b5 | 5350 | for (c = gfc_constructor_first (expr->value.constructor); |
5351 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 5352 | { |
5353 | if (c->iterator) | |
5354 | return false; | |
5355 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
5356 | { | |
5357 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
5358 | return false; | |
5359 | } | |
5360 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
5361 | return false; | |
5362 | } | |
5363 | return true; | |
5364 | } | |
5365 | else switch (ts->type) | |
5366 | { | |
d7cd448a | 5367 | case_bt_struct: |
2eb674c9 | 5368 | if (expr->expr_type != EXPR_STRUCTURE) |
5369 | return false; | |
eeebe20b | 5370 | cm = expr->ts.u.derived->components; |
126387b5 | 5371 | for (c = gfc_constructor_first (expr->value.constructor); |
5372 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 5373 | { |
5374 | if (!c->expr || cm->attr.allocatable) | |
5375 | continue; | |
5376 | if (!check_constant_initializer (c->expr, &cm->ts, | |
5377 | cm->attr.dimension, | |
5378 | cm->attr.pointer)) | |
5379 | return false; | |
5380 | } | |
5381 | return true; | |
5382 | default: | |
5383 | return expr->expr_type == EXPR_CONSTANT; | |
5384 | } | |
5385 | } | |
5386 | ||
5387 | /* Emit debug info for parameters and unreferenced variables with | |
5388 | initializers. */ | |
5389 | ||
5390 | static void | |
5391 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
5392 | { | |
5393 | tree decl; | |
5394 | ||
5395 | if (sym->attr.flavor != FL_PARAMETER | |
5396 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
5397 | return; | |
5398 | ||
5399 | if (sym->backend_decl != NULL | |
5400 | || sym->value == NULL | |
5401 | || sym->attr.use_assoc | |
5402 | || sym->attr.dummy | |
5403 | || sym->attr.result | |
5404 | || sym->attr.function | |
5405 | || sym->attr.intrinsic | |
5406 | || sym->attr.pointer | |
5407 | || sym->attr.allocatable | |
5408 | || sym->attr.cray_pointee | |
5409 | || sym->attr.threadprivate | |
5410 | || sym->attr.is_bind_c | |
5411 | || sym->attr.subref_array_pointer | |
5412 | || sym->attr.assign) | |
5413 | return; | |
5414 | ||
5415 | if (sym->ts.type == BT_CHARACTER) | |
5416 | { | |
eeebe20b | 5417 | gfc_conv_const_charlen (sym->ts.u.cl); |
5418 | if (sym->ts.u.cl->backend_decl == NULL | |
5419 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 5420 | return; |
5421 | } | |
eeebe20b | 5422 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 5423 | return; |
5424 | ||
5425 | if (sym->as) | |
5426 | { | |
5427 | int n; | |
5428 | ||
5429 | if (sym->as->type != AS_EXPLICIT) | |
5430 | return; | |
5431 | for (n = 0; n < sym->as->rank; n++) | |
5432 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5433 | || sym->as->upper[n] == NULL | |
5434 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5435 | return; | |
5436 | } | |
5437 | ||
5438 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5439 | sym->attr.dimension, false)) | |
5440 | return; | |
5441 | ||
4fe73152 | 5442 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 5443 | return; |
5444 | ||
2eb674c9 | 5445 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 5446 | decl = build_decl (input_location, |
5447 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 5448 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5449 | if (sym->attr.flavor == FL_PARAMETER) | |
5450 | TREE_READONLY (decl) = 1; | |
5451 | gfc_set_decl_location (decl, &sym->declared_at); | |
5452 | if (sym->attr.dimension) | |
5453 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5454 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5455 | TREE_STATIC (decl) = 1; | |
5456 | TREE_USED (decl) = 1; | |
5457 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5458 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 5459 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5460 | TREE_TYPE (decl), | |
5461 | sym->attr.dimension, | |
5462 | false, false); | |
3a1c9df2 | 5463 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 5464 | } |
5465 | ||
a961ca30 | 5466 | |
5467 | static void | |
5468 | generate_coarray_sym_init (gfc_symbol *sym) | |
5469 | { | |
eee0cf09 | 5470 | tree tmp, size, decl, token, desc; |
bd47f0bc | 5471 | bool is_lock_type, is_event_type; |
498b946e | 5472 | int reg_type; |
eee0cf09 | 5473 | gfc_se se; |
5474 | symbol_attribute attr; | |
a961ca30 | 5475 | |
5476 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 5477 | || sym->attr.use_assoc || !sym->attr.referenced |
5478 | || sym->attr.select_type_temporary) | |
a961ca30 | 5479 | return; |
5480 | ||
5481 | decl = sym->backend_decl; | |
5482 | TREE_USED(decl) = 1; | |
5483 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5484 | ||
498b946e | 5485 | is_lock_type = sym->ts.type == BT_DERIVED |
5486 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5487 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5488 | ||
bd47f0bc | 5489 | is_event_type = sym->ts.type == BT_DERIVED |
5490 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5491 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5492 | ||
a961ca30 | 5493 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5494 | to make sure the variable is not optimized away. */ | |
5495 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5496 | ||
498b946e | 5497 | /* For lock types, we pass the array size as only the library knows the |
5498 | size of the variable. */ | |
bd47f0bc | 5499 | if (is_lock_type || is_event_type) |
498b946e | 5500 | size = gfc_index_one_node; |
5501 | else | |
5502 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 5503 | |
a90fe829 | 5504 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 5505 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5506 | fold_convert (size_type_node, size), | |
5507 | build_int_cst (size_type_node, 1)); | |
5508 | ||
a961ca30 | 5509 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5510 | { | |
5511 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5512 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 5513 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 5514 | } |
5515 | ||
5516 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5517 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5518 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 5519 | if (is_lock_type) |
5520 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 5521 | else if (is_event_type) |
5522 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 5523 | else |
5524 | reg_type = GFC_CAF_COARRAY_STATIC; | |
eee0cf09 | 5525 | |
f991680c | 5526 | /* Compile the symbol attribute. */ |
5527 | if (sym->ts.type == BT_CLASS) | |
5528 | { | |
5529 | attr = CLASS_DATA (sym)->attr; | |
5530 | /* The pointer attribute is always set on classes, overwrite it with the | |
5531 | class_pointer attribute, which denotes the pointer for classes. */ | |
5532 | attr.pointer = attr.class_pointer; | |
5533 | } | |
5534 | else | |
5535 | attr = sym->attr; | |
eee0cf09 | 5536 | gfc_init_se (&se, NULL); |
5537 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5538 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5539 | ||
5540 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
498b946e | 5541 | build_int_cst (integer_type_node, reg_type), |
eee0cf09 | 5542 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5543 | null_pointer_node, /* stat. */ | |
3d2aa0e8 | 5544 | null_pointer_node, /* errgmsg. */ |
5e04a38a | 5545 | build_zero_cst (size_type_node)); /* errmsg_len. */ |
eee0cf09 | 5546 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5547 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5548 | gfc_conv_descriptor_data_get (desc))); | |
a961ca30 | 5549 | |
a961ca30 | 5550 | /* Handle "static" initializer. */ |
5551 | if (sym->value) | |
5552 | { | |
9ad48282 | 5553 | if (sym->value->expr_type == EXPR_ARRAY) |
5554 | { | |
5555 | gfc_constructor *c, *cnext; | |
5556 | ||
5557 | /* Test if the array has more than one element. */ | |
5558 | c = gfc_constructor_first (sym->value->value.constructor); | |
5559 | gcc_assert (c); /* Empty constructor should not happen here. */ | |
5560 | cnext = gfc_constructor_next (c); | |
5561 | ||
5562 | if (cnext) | |
5563 | { | |
5564 | /* An EXPR_ARRAY with a rank > 1 here has to come from a | |
5565 | DATA statement. Set its rank here as not to confuse | |
5566 | the following steps. */ | |
5567 | sym->value->rank = 1; | |
5568 | } | |
5569 | else | |
5570 | { | |
5571 | /* There is only a single value in the constructor, use | |
5572 | it directly for the assignment. */ | |
5573 | gfc_expr *new_expr; | |
5574 | new_expr = gfc_copy_expr (c->expr); | |
5575 | gfc_free_expr (sym->value); | |
5576 | sym->value = new_expr; | |
5577 | } | |
5578 | } | |
5579 | ||
a961ca30 | 5580 | sym->attr.pointer = 1; |
5581 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5582 | true, false); | |
5583 | sym->attr.pointer = 0; | |
5584 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5585 | } | |
942ef29d | 5586 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp) |
5587 | { | |
5588 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as | |
5589 | ? sym->as->rank : 0, | |
5590 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY); | |
5591 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5592 | } | |
a961ca30 | 5593 | } |
5594 | ||
5595 | ||
5596 | /* Generate constructor function to initialize static, nonallocatable | |
5597 | coarrays. */ | |
5598 | ||
5599 | static void | |
5600 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5601 | { | |
5602 | tree fndecl, tmp, decl, save_fn_decl; | |
5603 | ||
5604 | save_fn_decl = current_function_decl; | |
5605 | push_function_context (); | |
5606 | ||
5607 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5608 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5609 | create_tmp_var_name ("_caf_init"), tmp); | |
5610 | ||
5611 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5612 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5613 | ||
5614 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5615 | DECL_ARTIFICIAL (decl) = 1; | |
5616 | DECL_IGNORED_P (decl) = 1; | |
5617 | DECL_CONTEXT (decl) = fndecl; | |
5618 | DECL_RESULT (fndecl) = decl; | |
5619 | ||
5620 | pushdecl (fndecl); | |
5621 | current_function_decl = fndecl; | |
5622 | announce_function (fndecl); | |
5623 | ||
5624 | rest_of_decl_compilation (fndecl, 0, 0); | |
5625 | make_decl_rtl (fndecl); | |
00cf115c | 5626 | allocate_struct_function (fndecl, false); |
a961ca30 | 5627 | |
cde2be84 | 5628 | pushlevel (); |
a961ca30 | 5629 | gfc_init_block (&caf_init_block); |
5630 | ||
5631 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5632 | ||
5633 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5634 | decl = getdecls (); | |
5635 | ||
cde2be84 | 5636 | poplevel (1, 1); |
a961ca30 | 5637 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5638 | ||
5639 | DECL_SAVED_TREE (fndecl) | |
5640 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5641 | DECL_INITIAL (fndecl)); | |
5642 | dump_function (TDI_original, fndecl); | |
5643 | ||
5644 | cfun->function_end_locus = input_location; | |
5645 | set_cfun (NULL); | |
5646 | ||
5647 | if (decl_function_context (fndecl)) | |
415d1b9a | 5648 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5649 | else |
35ee1c66 | 5650 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5651 | |
5652 | pop_function_context (); | |
5653 | current_function_decl = save_fn_decl; | |
5654 | } | |
5655 | ||
5656 | ||
c40a5c1b | 5657 | static void |
5658 | create_module_nml_decl (gfc_symbol *sym) | |
5659 | { | |
5660 | if (sym->attr.flavor == FL_NAMELIST) | |
5661 | { | |
5662 | tree decl = generate_namelist_decl (sym); | |
5663 | pushdecl (decl); | |
5664 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5665 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5666 | rest_of_decl_compilation (decl, 1, 0); | |
5667 | gfc_module_add_decl (cur_module, decl); | |
5668 | } | |
5669 | } | |
5670 | ||
5671 | ||
51d9479b | 5672 | /* Generate all the required code for module variables. */ |
5673 | ||
5674 | void | |
5675 | gfc_generate_module_vars (gfc_namespace * ns) | |
5676 | { | |
5677 | module_namespace = ns; | |
5678 | cur_module = gfc_find_module (ns->proc_name->name); | |
5679 | ||
5680 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5681 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5682 | ||
5683 | /* Generate COMMON blocks. */ | |
5684 | gfc_trans_common (ns); | |
5685 | ||
a961ca30 | 5686 | has_coarray_vars = false; |
5687 | ||
51d9479b | 5688 | /* Create decls for all the module variables. */ |
5689 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5690 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5691 | |
4fe73152 | 5692 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5693 | generate_coarray_init (ns); |
5694 | ||
51d9479b | 5695 | cur_module = NULL; |
5696 | ||
5697 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5698 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5699 | } |
5700 | ||
5701 | ||
4ee9c684 | 5702 | static void |
5703 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5704 | { | |
5705 | gfc_namespace *ns; | |
5706 | ||
5707 | /* We create all the prototypes before generating any code. */ | |
5708 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5709 | { | |
5710 | /* Skip namespaces from used modules. */ | |
5711 | if (ns->parent != parent) | |
5712 | continue; | |
5713 | ||
d896f9b3 | 5714 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5715 | } |
5716 | ||
5717 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5718 | { | |
5719 | /* Skip namespaces from used modules. */ | |
5720 | if (ns->parent != parent) | |
5721 | continue; | |
5722 | ||
5723 | gfc_generate_function_code (ns); | |
5724 | } | |
5725 | } | |
5726 | ||
5727 | ||
d95efb59 | 5728 | /* Drill down through expressions for the array specification bounds and |
5729 | character length calling generate_local_decl for all those variables | |
5730 | that have not already been declared. */ | |
5731 | ||
5732 | static void | |
5733 | generate_local_decl (gfc_symbol *); | |
5734 | ||
1acb400a | 5735 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5736 | |
1acb400a | 5737 | static bool |
5738 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5739 | int *f ATTRIBUTE_UNUSED) | |
5740 | { | |
5741 | if (e->expr_type != EXPR_VARIABLE | |
5742 | || sym == e->symtree->n.sym | |
d95efb59 | 5743 | || e->symtree->n.sym->mark |
5744 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5745 | return false; |
d95efb59 | 5746 | |
1acb400a | 5747 | generate_local_decl (e->symtree->n.sym); |
5748 | return false; | |
5749 | } | |
d95efb59 | 5750 | |
1acb400a | 5751 | static void |
5752 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5753 | { | |
5754 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5755 | } |
5756 | ||
5757 | ||
f6d0e37a | 5758 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5759 | |
5760 | static void | |
5761 | generate_dependency_declarations (gfc_symbol *sym) | |
5762 | { | |
5763 | int i; | |
5764 | ||
5765 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5766 | && sym->ts.u.cl |
5767 | && sym->ts.u.cl->length | |
5768 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5769 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5770 | |
5771 | if (sym->as && sym->as->rank) | |
5772 | { | |
5773 | for (i = 0; i < sym->as->rank; i++) | |
5774 | { | |
5775 | generate_expr_decls (sym, sym->as->lower[i]); | |
5776 | generate_expr_decls (sym, sym->as->upper[i]); | |
5777 | } | |
5778 | } | |
5779 | } | |
5780 | ||
5781 | ||
4ee9c684 | 5782 | /* Generate decls for all local variables. We do this to ensure correct |
5783 | handling of expressions which only appear in the specification of | |
5784 | other functions. */ | |
5785 | ||
5786 | static void | |
5787 | generate_local_decl (gfc_symbol * sym) | |
5788 | { | |
5789 | if (sym->attr.flavor == FL_VARIABLE) | |
5790 | { | |
a961ca30 | 5791 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5792 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5793 | has_coarray_vars = true; | |
5794 | ||
d95efb59 | 5795 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5796 | generate_dependency_declarations (sym); |
d95efb59 | 5797 | |
4ee9c684 | 5798 | if (sym->attr.referenced) |
8714fc76 | 5799 | gfc_get_symbol_decl (sym); |
4acad347 | 5800 | |
5801 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5802 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5803 | { |
4acad347 | 5804 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5805 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5806 | { |
5807 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5808 | gfc_warning (OPT_Wunused_dummy_argument, |
5809 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5810 | "INTENT(OUT) but was not set", sym->name, |
5811 | &sym->declared_at); | |
48cb4748 | 5812 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5813 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5814 | gfc_warning (OPT_Wunused_dummy_argument, |
5815 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5816 | "declared INTENT(OUT) but was not set and " |
5817 | "does not have a default initializer", | |
5818 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5819 | if (sym->backend_decl != NULL_TREE) |
5820 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5821 | } |
8290d53f | 5822 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5823 | { |
4166acc7 | 5824 | gfc_warning (OPT_Wunused_dummy_argument, |
5825 | "Unused dummy argument %qs at %L", sym->name, | |
5826 | &sym->declared_at); | |
90a4a5a6 | 5827 | if (sym->backend_decl != NULL_TREE) |
5828 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5829 | } | |
7c0ca46e | 5830 | } |
4acad347 | 5831 | |
f888a3fb | 5832 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5833 | block or a namelist. */ |
36609028 | 5834 | else if (warn_unused_variable |
1dbfac29 | 5835 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5836 | { |
1dbfac29 | 5837 | if (sym->attr.use_only) |
5838 | { | |
4166acc7 | 5839 | gfc_warning (OPT_Wunused_variable, |
5840 | "Unused module variable %qs which has been " | |
1dbfac29 | 5841 | "explicitly imported at %L", sym->name, |
5842 | &sym->declared_at); | |
5843 | if (sym->backend_decl != NULL_TREE) | |
5844 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5845 | } | |
5846 | else if (!sym->attr.use_assoc) | |
5847 | { | |
99af6e70 | 5848 | /* Corner case: the symbol may be an entry point. At this point, |
5849 | it may appear to be an unused variable. Suppress warning. */ | |
5850 | bool enter = false; | |
5851 | gfc_entry_list *el; | |
5852 | ||
5853 | for (el = sym->ns->entries; el; el=el->next) | |
5854 | if (strcmp(sym->name, el->sym->name) == 0) | |
5855 | enter = true; | |
5856 | ||
5857 | if (!enter) | |
5858 | gfc_warning (OPT_Wunused_variable, | |
5859 | "Unused variable %qs declared at %L", | |
5860 | sym->name, &sym->declared_at); | |
1dbfac29 | 5861 | if (sym->backend_decl != NULL_TREE) |
5862 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5863 | } | |
90a4a5a6 | 5864 | } |
8714fc76 | 5865 | |
d4163395 | 5866 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5867 | references the length variable, so force gfc_get_symbol_decl | |
5868 | even when not referenced. If optimize > 0, it will be optimized | |
5869 | away anyway. But do this only after emitting -Wunused-parameter | |
5870 | warning if requested. */ | |
8714fc76 | 5871 | if (sym->attr.dummy && !sym->attr.referenced |
5872 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5873 | && sym->ts.u.cl->backend_decl != NULL |
fe732a9b | 5874 | && VAR_P (sym->ts.u.cl->backend_decl)) |
d4163395 | 5875 | { |
5876 | sym->attr.referenced = 1; | |
5877 | gfc_get_symbol_decl (sym); | |
5878 | } | |
76776e6d | 5879 | |
d0163401 | 5880 | /* INTENT(out) dummy arguments and result variables with allocatable |
5881 | components are reset by default and need to be set referenced to | |
5882 | generate the code for nullification and automatic lengths. */ | |
5883 | if (!sym->attr.referenced | |
8714fc76 | 5884 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5885 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5886 | && !sym->attr.pointer |
d0163401 | 5887 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5888 | || | |
5889 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5890 | { |
5891 | sym->attr.referenced = 1; | |
5892 | gfc_get_symbol_decl (sym); | |
5893 | } | |
5894 | ||
e72f979a | 5895 | /* Check for dependencies in the array specification and string |
5896 | length, adding the necessary declarations to the function. We | |
5897 | mark the symbol now, as well as in traverse_ns, to prevent | |
5898 | getting stuck in a circular dependency. */ | |
5899 | sym->mark = 1; | |
4ee9c684 | 5900 | } |
5dd246c1 | 5901 | else if (sym->attr.flavor == FL_PARAMETER) |
5902 | { | |
6ecfe89d | 5903 | if (warn_unused_parameter |
f326eb81 | 5904 | && !sym->attr.referenced) |
5905 | { | |
5906 | if (!sym->attr.use_assoc) | |
4166acc7 | 5907 | gfc_warning (OPT_Wunused_parameter, |
5908 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5909 | &sym->declared_at); |
5910 | else if (sym->attr.use_only) | |
4166acc7 | 5911 | gfc_warning (OPT_Wunused_parameter, |
5912 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5913 | "imported at %L", sym->name, &sym->declared_at); |
5914 | } | |
758c9897 | 5915 | |
49b830df | 5916 | if (sym->ns && sym->ns->construct_entities) |
758c9897 | 5917 | { |
5918 | if (sym->attr.referenced) | |
5919 | gfc_get_symbol_decl (sym); | |
5920 | sym->mark = 1; | |
5921 | } | |
5dd246c1 | 5922 | } |
fa7b6574 | 5923 | else if (sym->attr.flavor == FL_PROCEDURE) |
5924 | { | |
5925 | /* TODO: move to the appropriate place in resolve.c. */ | |
8b72061f | 5926 | if (warn_return_type > 0 |
fa7b6574 | 5927 | && sym->attr.function |
5928 | && sym->result | |
5929 | && sym != sym->result | |
5930 | && !sym->result->attr.referenced | |
5931 | && !sym->attr.use_assoc | |
5932 | && sym->attr.if_source != IFSRC_IFBODY) | |
5933 | { | |
4166acc7 | 5934 | gfc_warning (OPT_Wreturn_type, |
5935 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5936 | "%L not set", sym->result->name, sym->name, |
5937 | &sym->result->declared_at); | |
5938 | ||
5939 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5940 | sym->result->mark = 1; |
fa7b6574 | 5941 | } |
5942 | } | |
c5d33754 | 5943 | |
19ba2ad8 | 5944 | if (sym->attr.dummy == 1) |
5945 | { | |
5946 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5947 | procedures if they are passed by value. The tree type for them will | |
5948 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5949 | what C would do with characters passed by-value. The value attribute | |
5950 | implies the dummy is a scalar. */ | |
5951 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5952 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5953 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5954 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5955 | |
5956 | /* Unused procedure passed as dummy argument. */ | |
5957 | if (sym->attr.flavor == FL_PROCEDURE) | |
5958 | { | |
5959 | if (!sym->attr.referenced) | |
5960 | { | |
8290d53f | 5961 | if (warn_unused_dummy_argument) |
4166acc7 | 5962 | gfc_warning (OPT_Wunused_dummy_argument, |
5963 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5964 | &sym->declared_at); |
fc6338c7 | 5965 | } |
5966 | ||
5967 | /* Silence bogus "unused parameter" warnings from the | |
5968 | middle end. */ | |
5969 | if (sym->backend_decl != NULL_TREE) | |
5970 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5971 | } | |
19ba2ad8 | 5972 | } |
5973 | ||
c5d33754 | 5974 | /* Make sure we convert the types of the derived types from iso_c_binding |
5975 | into (void *). */ | |
5976 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5977 | && sym->ts.type == BT_DERIVED) | |
5978 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5979 | } |
5980 | ||
c40a5c1b | 5981 | |
5982 | static void | |
5983 | generate_local_nml_decl (gfc_symbol * sym) | |
5984 | { | |
5985 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5986 | { | |
5987 | tree decl = generate_namelist_decl (sym); | |
5988 | pushdecl (decl); | |
5989 | } | |
5990 | } | |
5991 | ||
5992 | ||
4ee9c684 | 5993 | static void |
5994 | generate_local_vars (gfc_namespace * ns) | |
5995 | { | |
5996 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5997 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5998 | } |
5999 | ||
6000 | ||
1b716045 | 6001 | /* Generate a switch statement to jump to the correct entry point. Also |
6002 | creates the label decls for the entry points. */ | |
4ee9c684 | 6003 | |
1b716045 | 6004 | static tree |
6005 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 6006 | { |
1b716045 | 6007 | stmtblock_t block; |
6008 | tree label; | |
6009 | tree tmp; | |
6010 | tree val; | |
4ee9c684 | 6011 | |
1b716045 | 6012 | gfc_init_block (&block); |
6013 | for (; el; el = el->next) | |
6014 | { | |
6015 | /* Add the case label. */ | |
b797d6d3 | 6016 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 6017 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 6018 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 6019 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 6020 | |
1b716045 | 6021 | /* And jump to the actual entry point. */ |
6022 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 6023 | tmp = build1_v (GOTO_EXPR, label); |
6024 | gfc_add_expr_to_block (&block, tmp); | |
6025 | ||
6026 | /* Save the label decl. */ | |
6027 | el->label = label; | |
6028 | } | |
6029 | tmp = gfc_finish_block (&block); | |
6030 | /* The first argument selects the entry point. */ | |
6031 | val = DECL_ARGUMENTS (current_function_decl); | |
bd37ce3e | 6032 | tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp); |
1b716045 | 6033 | return tmp; |
4ee9c684 | 6034 | } |
6035 | ||
6374121b | 6036 | |
a4abf8a0 | 6037 | /* Add code to string lengths of actual arguments passed to a function against |
6038 | the expected lengths of the dummy arguments. */ | |
6039 | ||
6040 | static void | |
6041 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
6042 | { | |
6043 | gfc_formal_arglist *formal; | |
6044 | ||
6777213b | 6045 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 6046 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 6047 | && !formal->sym->ts.deferred) |
a4abf8a0 | 6048 | { |
6049 | enum tree_code comparison; | |
6050 | tree cond; | |
6051 | tree argname; | |
6052 | gfc_symbol *fsym; | |
6053 | gfc_charlen *cl; | |
6054 | const char *message; | |
6055 | ||
6056 | fsym = formal->sym; | |
eeebe20b | 6057 | cl = fsym->ts.u.cl; |
a4abf8a0 | 6058 | |
6059 | gcc_assert (cl); | |
6060 | gcc_assert (cl->passed_length != NULL_TREE); | |
6061 | gcc_assert (cl->backend_decl != NULL_TREE); | |
6062 | ||
6063 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
6064 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 6065 | that the actual string length is *at least* the expected one. |
6066 | Sequence association allows for a mismatch of the string length | |
6067 | if the actual argument is (part of) an array, but only if the | |
6068 | dummy argument is an array. (See "Sequence association" in | |
6069 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 6070 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 6071 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
6072 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 6073 | { |
6074 | comparison = NE_EXPR; | |
6075 | message = _("Actual string length does not match the declared one" | |
6076 | " for dummy argument '%s' (%ld/%ld)"); | |
6077 | } | |
be4be771 | 6078 | else if (fsym->as && fsym->as->rank != 0) |
6079 | continue; | |
a4abf8a0 | 6080 | else |
6081 | { | |
6082 | comparison = LT_EXPR; | |
6083 | message = _("Actual string length is shorter than the declared one" | |
6084 | " for dummy argument '%s' (%ld/%ld)"); | |
6085 | } | |
6086 | ||
6087 | /* Build the condition. For optional arguments, an actual length | |
6088 | of 0 is also acceptable if the associated string is NULL, which | |
6089 | means the argument was not passed. */ | |
4c796f54 | 6090 | cond = fold_build2_loc (input_location, comparison, logical_type_node, |
fd779e1d | 6091 | cl->passed_length, cl->backend_decl); |
a4abf8a0 | 6092 | if (fsym->attr.optional) |
6093 | { | |
6094 | tree not_absent; | |
6095 | tree not_0length; | |
6096 | tree absent_failed; | |
6097 | ||
fd779e1d | 6098 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4c796f54 | 6099 | logical_type_node, |
fd779e1d | 6100 | cl->passed_length, |
9f4d9f83 | 6101 | build_zero_cst |
6102 | (TREE_TYPE (cl->passed_length))); | |
5fa0fdc2 | 6103 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
6104 | fsym->attr.referenced = 1; | |
6105 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 6106 | |
fd779e1d | 6107 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4c796f54 | 6108 | logical_type_node, not_0length, |
fd779e1d | 6109 | not_absent); |
a4abf8a0 | 6110 | |
fd779e1d | 6111 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4c796f54 | 6112 | logical_type_node, cond, absent_failed); |
a4abf8a0 | 6113 | } |
6114 | ||
6115 | /* Build the runtime check. */ | |
6116 | argname = gfc_build_cstring_const (fsym->name); | |
6117 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
6118 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
6119 | message, argname, | |
6120 | fold_convert (long_integer_type_node, | |
6121 | cl->passed_length), | |
6122 | fold_convert (long_integer_type_node, | |
6123 | cl->backend_decl)); | |
6124 | } | |
6125 | } | |
6126 | ||
6127 | ||
7257a5d2 | 6128 | static void |
6129 | create_main_function (tree fndecl) | |
6130 | { | |
43702da6 | 6131 | tree old_context; |
7257a5d2 | 6132 | tree ftn_main; |
6133 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
6134 | stmtblock_t body; | |
6135 | ||
43702da6 | 6136 | old_context = current_function_decl; |
6137 | ||
6138 | if (old_context) | |
6139 | { | |
6140 | push_function_context (); | |
6141 | saved_parent_function_decls = saved_function_decls; | |
6142 | saved_function_decls = NULL_TREE; | |
6143 | } | |
6144 | ||
7257a5d2 | 6145 | /* main() function must be declared with global scope. */ |
6146 | gcc_assert (current_function_decl == NULL_TREE); | |
6147 | ||
6148 | /* Declare the function. */ | |
6149 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
6150 | build_pointer_type (pchar_type_node), | |
6151 | NULL_TREE); | |
0509d0ee | 6152 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 6153 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
6154 | main_identifier_node, tmp); | |
7257a5d2 | 6155 | DECL_EXTERNAL (ftn_main) = 0; |
6156 | TREE_PUBLIC (ftn_main) = 1; | |
6157 | TREE_STATIC (ftn_main) = 1; | |
6158 | DECL_ATTRIBUTES (ftn_main) | |
6159 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
6160 | ||
6161 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 6162 | result_decl = build_decl (input_location, |
6163 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 6164 | DECL_ARTIFICIAL (result_decl) = 1; |
6165 | DECL_IGNORED_P (result_decl) = 1; | |
6166 | DECL_CONTEXT (result_decl) = ftn_main; | |
6167 | DECL_RESULT (ftn_main) = result_decl; | |
6168 | ||
6169 | pushdecl (ftn_main); | |
6170 | ||
6171 | /* Get the arguments. */ | |
6172 | ||
6173 | arglist = NULL_TREE; | |
6174 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
6175 | ||
6176 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 6177 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 6178 | DECL_CONTEXT (argc) = ftn_main; |
6179 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
6180 | TREE_READONLY (argc) = 1; | |
6181 | gfc_finish_decl (argc); | |
6182 | arglist = chainon (arglist, argc); | |
6183 | ||
6184 | typelist = TREE_CHAIN (typelist); | |
6185 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 6186 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 6187 | DECL_CONTEXT (argv) = ftn_main; |
6188 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
6189 | TREE_READONLY (argv) = 1; | |
6190 | DECL_BY_REFERENCE (argv) = 1; | |
6191 | gfc_finish_decl (argv); | |
6192 | arglist = chainon (arglist, argv); | |
6193 | ||
6194 | DECL_ARGUMENTS (ftn_main) = arglist; | |
6195 | current_function_decl = ftn_main; | |
6196 | announce_function (ftn_main); | |
6197 | ||
6198 | rest_of_decl_compilation (ftn_main, 1, 0); | |
6199 | make_decl_rtl (ftn_main); | |
00cf115c | 6200 | allocate_struct_function (ftn_main, false); |
cde2be84 | 6201 | pushlevel (); |
7257a5d2 | 6202 | |
6203 | gfc_init_block (&body); | |
6204 | ||
293d72e0 | 6205 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 6206 | |
d44f2f7c | 6207 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 6208 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 6209 | { |
6210 | tree pint_type, pppchar_type; | |
6211 | pint_type = build_pointer_type (integer_type_node); | |
6212 | pppchar_type | |
6213 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
6214 | ||
d44f2f7c | 6215 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 6216 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 6217 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 6218 | gfc_add_expr_to_block (&body, tmp); |
6219 | } | |
6220 | ||
7257a5d2 | 6221 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 6222 | TREE_USED (argc) = 1; |
6223 | TREE_USED (argv) = 1; | |
389dd41b | 6224 | tmp = build_call_expr_loc (input_location, |
6225 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 6226 | gfc_add_expr_to_block (&body, tmp); |
6227 | ||
6228 | /* Add a call to set_options to set up the runtime library Fortran | |
6229 | language standard parameters. */ | |
6230 | { | |
6231 | tree array_type, array, var; | |
f1f41a6c | 6232 | vec<constructor_elt, va_gc> *v = NULL; |
f7619ded | 6233 | static const int noptions = 7; |
7257a5d2 | 6234 | |
f7619ded | 6235 | /* Passing a new option to the library requires three modifications: |
6236 | + add it to the tree_cons list below | |
6237 | + change the noptions variable above | |
7257a5d2 | 6238 | + modify the library (runtime/compile_options.c)! */ |
6239 | ||
06f13dc1 | 6240 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6241 | build_int_cst (integer_type_node, | |
6242 | gfc_option.warn_std)); | |
6243 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6244 | build_int_cst (integer_type_node, | |
6245 | gfc_option.allow_std)); | |
6246 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6247 | build_int_cst (integer_type_node, pedantic)); | |
06f13dc1 | 6248 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 6249 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 6250 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 6251 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 6252 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6253 | build_int_cst (integer_type_node, | |
6254 | (gfc_option.rtcheck | |
6255 | & GFC_RTCHECK_BOUNDS))); | |
6256 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6257 | build_int_cst (integer_type_node, | |
553e7cef | 6258 | gfc_option.fpe_summary)); |
7257a5d2 | 6259 | |
f7619ded | 6260 | array_type = build_array_type_nelts (integer_type_node, noptions); |
06f13dc1 | 6261 | array = build_constructor (array_type, v); |
7257a5d2 | 6262 | TREE_CONSTANT (array) = 1; |
6263 | TREE_STATIC (array) = 1; | |
6264 | ||
6265 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 6266 | var = build_decl (input_location, VAR_DECL, |
f7619ded | 6267 | create_tmp_var_name ("options"), array_type); |
bf77f8ee | 6268 | DECL_ARTIFICIAL (var) = 1; |
6269 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 6270 | TREE_CONSTANT (var) = 1; |
6271 | TREE_STATIC (var) = 1; | |
6272 | TREE_READONLY (var) = 1; | |
6273 | DECL_INITIAL (var) = array; | |
bf77f8ee | 6274 | pushdecl (var); |
7257a5d2 | 6275 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
6276 | ||
389dd41b | 6277 | tmp = build_call_expr_loc (input_location, |
6278 | gfor_fndecl_set_options, 2, | |
f7619ded | 6279 | build_int_cst (integer_type_node, noptions), var); |
7257a5d2 | 6280 | gfc_add_expr_to_block (&body, tmp); |
6281 | } | |
6282 | ||
6283 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
6284 | the library will raise a FPE when needed. */ | |
6285 | if (gfc_option.fpe != 0) | |
6286 | { | |
389dd41b | 6287 | tmp = build_call_expr_loc (input_location, |
6288 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 6289 | build_int_cst (integer_type_node, |
6290 | gfc_option.fpe)); | |
6291 | gfc_add_expr_to_block (&body, tmp); | |
6292 | } | |
6293 | ||
6294 | /* If this is the main program and an -fconvert option was provided, | |
6295 | add a call to set_convert. */ | |
6296 | ||
4fe73152 | 6297 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 6298 | { |
389dd41b | 6299 | tmp = build_call_expr_loc (input_location, |
6300 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 6301 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 6302 | gfc_add_expr_to_block (&body, tmp); |
6303 | } | |
6304 | ||
6305 | /* If this is the main program and an -frecord-marker option was provided, | |
6306 | add a call to set_record_marker. */ | |
6307 | ||
eb106faf | 6308 | if (flag_record_marker != 0) |
7257a5d2 | 6309 | { |
389dd41b | 6310 | tmp = build_call_expr_loc (input_location, |
6311 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 6312 | build_int_cst (integer_type_node, |
eb106faf | 6313 | flag_record_marker)); |
7257a5d2 | 6314 | gfc_add_expr_to_block (&body, tmp); |
6315 | } | |
6316 | ||
eb106faf | 6317 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 6318 | { |
389dd41b | 6319 | tmp = build_call_expr_loc (input_location, |
6320 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 6321 | build_int_cst (integer_type_node, |
eb106faf | 6322 | flag_max_subrecord_length)); |
7257a5d2 | 6323 | gfc_add_expr_to_block (&body, tmp); |
6324 | } | |
6325 | ||
6326 | /* Call MAIN__(). */ | |
389dd41b | 6327 | tmp = build_call_expr_loc (input_location, |
6328 | fndecl, 0); | |
7257a5d2 | 6329 | gfc_add_expr_to_block (&body, tmp); |
6330 | ||
43702da6 | 6331 | /* Mark MAIN__ as used. */ |
6332 | TREE_USED (fndecl) = 1; | |
6333 | ||
70b5944a | 6334 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 6335 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 6336 | { |
70b5944a | 6337 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
6338 | gfc_add_expr_to_block (&body, tmp); | |
6339 | } | |
6340 | ||
7257a5d2 | 6341 | /* "return 0". */ |
fd779e1d | 6342 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
6343 | DECL_RESULT (ftn_main), | |
6344 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 6345 | tmp = build1_v (RETURN_EXPR, tmp); |
6346 | gfc_add_expr_to_block (&body, tmp); | |
6347 | ||
6348 | ||
6349 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
6350 | decl = getdecls (); | |
6351 | ||
6352 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6353 | poplevel (1, 1); |
7257a5d2 | 6354 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
6355 | ||
6356 | DECL_SAVED_TREE (ftn_main) | |
6357 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
6358 | DECL_INITIAL (ftn_main)); | |
6359 | ||
6360 | /* Output the GENERIC tree. */ | |
6361 | dump_function (TDI_original, ftn_main); | |
6362 | ||
35ee1c66 | 6363 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 6364 | |
6365 | if (old_context) | |
6366 | { | |
6367 | pop_function_context (); | |
6368 | saved_function_decls = saved_parent_function_decls; | |
6369 | } | |
6370 | current_function_decl = old_context; | |
7257a5d2 | 6371 | } |
6372 | ||
6373 | ||
89ac8ba1 | 6374 | /* Generate an appropriate return-statement for a procedure. */ |
6375 | ||
6376 | tree | |
6377 | gfc_generate_return (void) | |
6378 | { | |
6379 | gfc_symbol* sym; | |
6380 | tree result; | |
6381 | tree fndecl; | |
6382 | ||
6383 | sym = current_procedure_symbol; | |
6384 | fndecl = sym->backend_decl; | |
6385 | ||
6386 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
6387 | result = NULL_TREE; | |
6388 | else | |
6389 | { | |
6390 | result = get_proc_result (sym); | |
6391 | ||
6392 | /* Set the return value to the dummy result variable. The | |
6393 | types may be different for scalar default REAL functions | |
6394 | with -ff2c, therefore we have to convert. */ | |
6395 | if (result != NULL_TREE) | |
6396 | { | |
6397 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 6398 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
6399 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
6400 | result); | |
89ac8ba1 | 6401 | } |
6402 | } | |
6403 | ||
6404 | return build1_v (RETURN_EXPR, result); | |
6405 | } | |
6406 | ||
6407 | ||
d566c3e0 | 6408 | static void |
6409 | is_from_ieee_module (gfc_symbol *sym) | |
6410 | { | |
6411 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6412 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6413 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6414 | seen_ieee_symbol = 1; | |
6415 | } | |
6416 | ||
6417 | ||
6418 | static int | |
6419 | is_ieee_module_used (gfc_namespace *ns) | |
6420 | { | |
6421 | seen_ieee_symbol = 0; | |
6422 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6423 | return seen_ieee_symbol; | |
6424 | } | |
6425 | ||
6426 | ||
01d728a4 | 6427 | static gfc_omp_clauses *module_oacc_clauses; |
6428 | ||
6429 | ||
6430 | static void | |
6431 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6432 | { | |
6433 | gfc_omp_namelist *n; | |
6434 | ||
6435 | n = gfc_get_omp_namelist (); | |
6436 | n->sym = sym; | |
6437 | n->u.map_op = map_op; | |
6438 | ||
6439 | if (!module_oacc_clauses) | |
6440 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6441 | ||
6442 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6443 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6444 | ||
6445 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6446 | } | |
6447 | ||
6448 | ||
6449 | static void | |
6450 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6451 | { | |
6452 | if (sym->attr.use_assoc) | |
6453 | { | |
6454 | gfc_omp_map_op map_op; | |
6455 | ||
6456 | if (sym->attr.oacc_declare_create) | |
6457 | map_op = OMP_MAP_FORCE_ALLOC; | |
6458 | ||
6459 | if (sym->attr.oacc_declare_copyin) | |
6460 | map_op = OMP_MAP_FORCE_TO; | |
6461 | ||
6462 | if (sym->attr.oacc_declare_deviceptr) | |
6463 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6464 | ||
6465 | if (sym->attr.oacc_declare_device_resident) | |
6466 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6467 | ||
6468 | if (sym->attr.oacc_declare_create | |
6469 | || sym->attr.oacc_declare_copyin | |
6470 | || sym->attr.oacc_declare_deviceptr | |
6471 | || sym->attr.oacc_declare_device_resident) | |
6472 | { | |
6473 | sym->attr.referenced = 1; | |
6474 | add_clause (sym, map_op); | |
6475 | } | |
6476 | } | |
6477 | } | |
6478 | ||
6479 | ||
6480 | void | |
6481 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6482 | { | |
6483 | gfc_code *code; | |
6484 | gfc_oacc_declare *oc; | |
6485 | locus where = gfc_current_locus; | |
6486 | gfc_omp_clauses *omp_clauses = NULL; | |
6487 | gfc_omp_namelist *n, *p; | |
6488 | ||
6489 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6490 | ||
6491 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6492 | { | |
6493 | gfc_oacc_declare *new_oc; | |
6494 | ||
6495 | new_oc = gfc_get_oacc_declare (); | |
6496 | new_oc->next = ns->oacc_declare; | |
6497 | new_oc->clauses = module_oacc_clauses; | |
6498 | ||
6499 | ns->oacc_declare = new_oc; | |
6500 | module_oacc_clauses = NULL; | |
6501 | } | |
6502 | ||
6503 | if (!ns->oacc_declare) | |
6504 | return; | |
6505 | ||
6506 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6507 | { | |
6508 | if (oc->module_var) | |
6509 | continue; | |
6510 | ||
6511 | if (block) | |
f187ad6c | 6512 | gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed " |
01d728a4 | 6513 | "in BLOCK construct", &oc->loc); |
6514 | ||
6515 | ||
6516 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6517 | { | |
6518 | if (omp_clauses == NULL) | |
6519 | { | |
6520 | omp_clauses = oc->clauses; | |
6521 | continue; | |
6522 | } | |
6523 | ||
6524 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6525 | ; | |
6526 | ||
6527 | gcc_assert (p->next == NULL); | |
6528 | ||
6529 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6530 | omp_clauses = oc->clauses; | |
6531 | } | |
6532 | } | |
6533 | ||
6534 | if (!omp_clauses) | |
6535 | return; | |
6536 | ||
6537 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6538 | { | |
6539 | switch (n->u.map_op) | |
6540 | { | |
6541 | case OMP_MAP_DEVICE_RESIDENT: | |
6542 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6543 | break; | |
6544 | ||
6545 | default: | |
6546 | break; | |
6547 | } | |
6548 | } | |
6549 | ||
6550 | code = XCNEW (gfc_code); | |
6551 | code->op = EXEC_OACC_DECLARE; | |
6552 | code->loc = where; | |
6553 | ||
6554 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6555 | code->ext.oacc_declare->clauses = omp_clauses; | |
6556 | ||
6557 | code->block = XCNEW (gfc_code); | |
6558 | code->block->op = EXEC_OACC_DECLARE; | |
6559 | code->block->loc = where; | |
6560 | ||
6561 | if (ns->code) | |
6562 | code->block->next = ns->code; | |
6563 | ||
6564 | ns->code = code; | |
6565 | ||
6566 | return; | |
6567 | } | |
6568 | ||
6569 | ||
4ee9c684 | 6570 | /* Generate code for a function. */ |
6571 | ||
6572 | void | |
6573 | gfc_generate_function_code (gfc_namespace * ns) | |
6574 | { | |
6575 | tree fndecl; | |
6576 | tree old_context; | |
6577 | tree decl; | |
6578 | tree tmp; | |
d566c3e0 | 6579 | tree fpstate = NULL_TREE; |
89ac8ba1 | 6580 | stmtblock_t init, cleanup; |
4ee9c684 | 6581 | stmtblock_t body; |
89ac8ba1 | 6582 | gfc_wrapped_block try_block; |
5fa0fdc2 | 6583 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 6584 | gfc_symbol *sym; |
89ac8ba1 | 6585 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 6586 | int rank, ieee; |
e50e62f5 | 6587 | bool is_recursive; |
4ee9c684 | 6588 | |
6589 | sym = ns->proc_name; | |
89ac8ba1 | 6590 | previous_procedure_symbol = current_procedure_symbol; |
6591 | current_procedure_symbol = sym; | |
1b716045 | 6592 | |
8b7e5587 | 6593 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6594 | lost or worse. */ | |
4ee9c684 | 6595 | sym->tlink = sym; |
6596 | ||
6597 | /* Create the declaration for functions with global scope. */ | |
6598 | if (!sym->backend_decl) | |
d896f9b3 | 6599 | gfc_create_function_decl (ns, false); |
4ee9c684 | 6600 | |
6601 | fndecl = sym->backend_decl; | |
6602 | old_context = current_function_decl; | |
6603 | ||
6604 | if (old_context) | |
6605 | { | |
6606 | push_function_context (); | |
6607 | saved_parent_function_decls = saved_function_decls; | |
6608 | saved_function_decls = NULL_TREE; | |
6609 | } | |
6610 | ||
1b716045 | 6611 | trans_function_start (sym); |
4ee9c684 | 6612 | |
89ac8ba1 | 6613 | gfc_init_block (&init); |
4ee9c684 | 6614 | |
c6871095 | 6615 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6616 | { | |
6617 | /* Copy length backend_decls to all entry point result | |
6618 | symbols. */ | |
6619 | gfc_entry_list *el; | |
6620 | tree backend_decl; | |
6621 | ||
eeebe20b | 6622 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6623 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6624 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6625 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6626 | } |
6627 | ||
4ee9c684 | 6628 | /* Translate COMMON blocks. */ |
6629 | gfc_trans_common (ns); | |
6630 | ||
c750cc52 | 6631 | /* Null the parent fake result declaration if this namespace is |
6632 | a module function or an external procedures. */ | |
6633 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6634 | || ns->parent == NULL) | |
6635 | parent_fake_result_decl = NULL_TREE; | |
6636 | ||
2b685f8e | 6637 | gfc_generate_contained_functions (ns); |
6638 | ||
a961ca30 | 6639 | has_coarray_vars = false; |
4ee9c684 | 6640 | generate_local_vars (ns); |
5b11d932 | 6641 | |
4fe73152 | 6642 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6643 | generate_coarray_init (ns); |
6644 | ||
c750cc52 | 6645 | /* Keep the parent fake result declaration in module functions |
6646 | or external procedures. */ | |
6647 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6648 | || ns->parent == NULL) | |
6649 | current_fake_result_decl = parent_fake_result_decl; | |
6650 | else | |
6651 | current_fake_result_decl = NULL_TREE; | |
6652 | ||
89ac8ba1 | 6653 | is_recursive = sym->attr.recursive |
6654 | || (sym->attr.entry_master | |
6655 | && sym->ns->entries->sym->attr.recursive); | |
6656 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6657 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6658 | { |
6659 | char * msg; | |
6660 | ||
87fda26c | 6661 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6662 | sym->name); | |
4c796f54 | 6663 | recurcheckvar = gfc_create_var (logical_type_node, "is_recursive"); |
89ac8ba1 | 6664 | TREE_STATIC (recurcheckvar) = 1; |
4c796f54 | 6665 | DECL_INITIAL (recurcheckvar) = logical_false_node; |
89ac8ba1 | 6666 | gfc_add_expr_to_block (&init, recurcheckvar); |
6667 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6668 | &sym->declared_at, msg); | |
4c796f54 | 6669 | gfc_add_modify (&init, recurcheckvar, logical_true_node); |
434f0922 | 6670 | free (msg); |
89ac8ba1 | 6671 | } |
4ee9c684 | 6672 | |
d566c3e0 | 6673 | /* Check if an IEEE module is used in the procedure. If so, save |
6674 | the floating point state. */ | |
6675 | ieee = is_ieee_module_used (ns); | |
6676 | if (ieee) | |
d7333535 | 6677 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6678 | |
4ee9c684 | 6679 | /* Now generate the code for the body of this function. */ |
6680 | gfc_init_block (&body); | |
6681 | ||
6682 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6683 | && sym->attr.subroutine) |
4ee9c684 | 6684 | { |
6685 | tree alternate_return; | |
c750cc52 | 6686 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6687 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6688 | } |
6689 | ||
1b716045 | 6690 | if (ns->entries) |
6691 | { | |
6692 | /* Jump to the correct entry point. */ | |
6693 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6694 | gfc_add_expr_to_block (&body, tmp); | |
6695 | } | |
6696 | ||
a4abf8a0 | 6697 | /* If bounds-checking is enabled, generate code to check passed in actual |
6698 | arguments against the expected dummy argument attributes (e.g. string | |
6699 | lengths). */ | |
c1630d65 | 6700 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6701 | add_argument_checking (&body, sym); |
6702 | ||
01d728a4 | 6703 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6704 | |
4ee9c684 | 6705 | tmp = gfc_trans_code (ns->code); |
6706 | gfc_add_expr_to_block (&body, tmp); | |
6707 | ||
1caa6ab1 | 6708 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6709 | || (sym->result && sym->result != sym | |
6710 | && sym->result->ts.type == BT_DERIVED | |
6711 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6712 | { |
1caa6ab1 | 6713 | bool artificial_result_decl = false; |
89ac8ba1 | 6714 | tree result = get_proc_result (sym); |
1caa6ab1 | 6715 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6716 | ||
6717 | /* Make sure that a function returning an object with | |
6718 | alloc/pointer_components always has a result, where at least | |
6719 | the allocatable/pointer components are set to zero. */ | |
6720 | if (result == NULL_TREE && sym->attr.function | |
6721 | && ((sym->result->ts.type == BT_DERIVED | |
6722 | && (sym->attr.allocatable | |
6723 | || sym->attr.pointer | |
6724 | || sym->result->ts.u.derived->attr.alloc_comp | |
6725 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6726 | || (sym->result->ts.type == BT_CLASS | |
6727 | && (CLASS_DATA (sym)->attr.allocatable | |
6728 | || CLASS_DATA (sym)->attr.class_pointer | |
6729 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6730 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6731 | { | |
6732 | artificial_result_decl = true; | |
6733 | result = gfc_get_fake_result_decl (sym, 0); | |
6734 | } | |
4ee9c684 | 6735 | |
42766cb3 | 6736 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6737 | { |
deb7edfc | 6738 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6739 | && sym->result == sym) | |
6740 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6741 | null_pointer_node)); | |
42766cb3 | 6742 | else if (sym->ts.type == BT_CLASS |
6743 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6744 | && CLASS_DATA (sym)->attr.dimension == 0 |
6745 | && sym->result == sym) | |
42766cb3 | 6746 | { |
6747 | tmp = CLASS_DATA (sym)->backend_decl; | |
6748 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6749 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6750 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6751 | null_pointer_node)); | |
6752 | } | |
deb7edfc | 6753 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6754 | && !sym->attr.allocatable) |
53169279 | 6755 | { |
1caa6ab1 | 6756 | gfc_expr *init_exp; |
6757 | /* Arrays are not initialized using the default initializer of | |
6758 | their elements. Therefore only check if a default | |
6759 | initializer is available when the result is scalar. */ | |
36d310d0 | 6760 | init_exp = rsym->as ? NULL |
6761 | : gfc_generate_initializer (&rsym->ts, true); | |
1caa6ab1 | 6762 | if (init_exp) |
6763 | { | |
6764 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6765 | gfc_free_expr (init_exp); | |
6766 | gfc_add_expr_to_block (&init, tmp); | |
6767 | } | |
6768 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6769 | { | |
6770 | rank = rsym->as ? rsym->as->rank : 0; | |
6771 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6772 | rank); | |
6773 | gfc_prepend_expr_to_block (&body, tmp); | |
6774 | } | |
53169279 | 6775 | } |
5176859a | 6776 | } |
e50e62f5 | 6777 | |
1caa6ab1 | 6778 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6779 | { |
6780 | /* TODO: move to the appropriate place in resolve.c. */ | |
8b72061f | 6781 | if (warn_return_type > 0 && sym == sym->result) |
4166acc7 | 6782 | gfc_warning (OPT_Wreturn_type, |
6783 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6784 | sym->name, &sym->declared_at); |
8b72061f | 6785 | if (warn_return_type > 0) |
90a4a5a6 | 6786 | TREE_NO_WARNING(sym->backend_decl) = 1; |
fa7b6574 | 6787 | } |
1caa6ab1 | 6788 | if (result != NULL_TREE) |
89ac8ba1 | 6789 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6790 | } |
89ac8ba1 | 6791 | |
6792 | gfc_init_block (&cleanup); | |
6793 | ||
6794 | /* Reset recursion-check variable. */ | |
6795 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6796 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6797 | { |
4c796f54 | 6798 | gfc_add_modify (&cleanup, recurcheckvar, logical_false_node); |
89ac8ba1 | 6799 | recurcheckvar = NULL; |
e50e62f5 | 6800 | } |
2294b616 | 6801 | |
d566c3e0 | 6802 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6803 | if (ieee) | |
d7333535 | 6804 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6805 | |
89ac8ba1 | 6806 | /* Finish the function body and add init and cleanup code. */ |
6807 | tmp = gfc_finish_block (&body); | |
6808 | gfc_start_wrapped_block (&try_block, tmp); | |
6809 | /* Add code to create and cleanup arrays. */ | |
6810 | gfc_trans_deferred_vars (sym, &try_block); | |
6811 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6812 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6813 | |
6814 | /* Add all the decls we created during processing. */ | |
267f3c67 | 6815 | decl = nreverse (saved_function_decls); |
4ee9c684 | 6816 | while (decl) |
6817 | { | |
6818 | tree next; | |
6819 | ||
1767a056 | 6820 | next = DECL_CHAIN (decl); |
6821 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6822 | pushdecl (decl); |
4ee9c684 | 6823 | decl = next; |
6824 | } | |
6825 | saved_function_decls = NULL_TREE; | |
6826 | ||
89ac8ba1 | 6827 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6828 | decl = getdecls (); |
4ee9c684 | 6829 | |
6830 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6831 | poplevel (1, 1); |
4ee9c684 | 6832 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6833 | ||
e5004242 | 6834 | DECL_SAVED_TREE (fndecl) |
6835 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6836 | DECL_INITIAL (fndecl)); | |
6837 | ||
4ee9c684 | 6838 | /* Output the GENERIC tree. */ |
6839 | dump_function (TDI_original, fndecl); | |
6840 | ||
6841 | /* Store the end of the function, so that we get good line number | |
6842 | info for the epilogue. */ | |
6843 | cfun->function_end_locus = input_location; | |
6844 | ||
6845 | /* We're leaving the context of this function, so zap cfun. | |
6846 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6847 | tree_rest_of_compilation. */ | |
87d4aa85 | 6848 | set_cfun (NULL); |
4ee9c684 | 6849 | |
6850 | if (old_context) | |
6851 | { | |
6852 | pop_function_context (); | |
6853 | saved_function_decls = saved_parent_function_decls; | |
6854 | } | |
6855 | current_function_decl = old_context; | |
6856 | ||
1f7747bd | 6857 | if (decl_function_context (fndecl)) |
6858 | { | |
6859 | /* Register this function with cgraph just far enough to get it | |
6860 | added to our parent's nested function list. | |
6861 | If there are static coarrays in this function, the nested _caf_init | |
6862 | function has already called cgraph_create_node, which also created | |
6863 | the cgraph node for this function. */ | |
4fe73152 | 6864 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
0d565f19 | 6865 | (void) cgraph_node::get_create (fndecl); |
1f7747bd | 6866 | } |
4ee9c684 | 6867 | else |
35ee1c66 | 6868 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6869 | |
6870 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6871 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6872 | |
6873 | if (sym->attr.is_main_program) | |
6874 | create_main_function (fndecl); | |
89ac8ba1 | 6875 | |
6876 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6877 | } |
6878 | ||
7257a5d2 | 6879 | |
4ee9c684 | 6880 | void |
6881 | gfc_generate_constructors (void) | |
6882 | { | |
22d678e8 | 6883 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6884 | #if 0 |
6885 | tree fnname; | |
6886 | tree type; | |
6887 | tree fndecl; | |
6888 | tree decl; | |
6889 | tree tmp; | |
6890 | ||
6891 | if (gfc_static_ctors == NULL_TREE) | |
6892 | return; | |
6893 | ||
db85cc4f | 6894 | fnname = get_file_function_name ("I"); |
e1036019 | 6895 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6896 | |
e60a6f7b | 6897 | fndecl = build_decl (input_location, |
6898 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6899 | TREE_PUBLIC (fndecl) = 1; |
6900 | ||
e60a6f7b | 6901 | decl = build_decl (input_location, |
6902 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6903 | DECL_ARTIFICIAL (decl) = 1; |
6904 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6905 | DECL_CONTEXT (decl) = fndecl; |
6906 | DECL_RESULT (fndecl) = decl; | |
6907 | ||
6908 | pushdecl (fndecl); | |
6909 | ||
6910 | current_function_decl = fndecl; | |
6911 | ||
b2c4af5e | 6912 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6913 | |
b2c4af5e | 6914 | make_decl_rtl (fndecl); |
4ee9c684 | 6915 | |
00cf115c | 6916 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6917 | |
cde2be84 | 6918 | pushlevel (); |
4ee9c684 | 6919 | |
6920 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6921 | { | |
389dd41b | 6922 | tmp = build_call_expr_loc (input_location, |
6923 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6924 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6925 | } |
6926 | ||
e5004242 | 6927 | decl = getdecls (); |
cde2be84 | 6928 | poplevel (1, 1); |
4ee9c684 | 6929 | |
6930 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6931 | DECL_SAVED_TREE (fndecl) |
6932 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6933 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6934 | |
6935 | free_after_parsing (cfun); | |
6936 | free_after_compilation (cfun); | |
6937 | ||
6148a911 | 6938 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6939 | |
6940 | current_function_decl = NULL_TREE; | |
6941 | #endif | |
6942 | } | |
6943 | ||
9ec7c303 | 6944 | /* Translates a BLOCK DATA program unit. This means emitting the |
6945 | commons contained therein plus their initializations. We also emit | |
6946 | a globally visible symbol to make sure that each BLOCK DATA program | |
6947 | unit remains unique. */ | |
6948 | ||
6949 | void | |
6950 | gfc_generate_block_data (gfc_namespace * ns) | |
6951 | { | |
6952 | tree decl; | |
6953 | tree id; | |
6954 | ||
b31f705b | 6955 | /* Tell the backend the source location of the block data. */ |
6956 | if (ns->proc_name) | |
6957 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6958 | else | |
6959 | gfc_set_backend_locus (&gfc_current_locus); | |
6960 | ||
6961 | /* Process the DATA statements. */ | |
9ec7c303 | 6962 | gfc_trans_common (ns); |
6963 | ||
b31f705b | 6964 | /* Create a global symbol with the mane of the block data. This is to |
6965 | generate linker errors if the same name is used twice. It is never | |
6966 | really used. */ | |
9ec7c303 | 6967 | if (ns->proc_name) |
6968 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6969 | else | |
6970 | id = get_identifier ("__BLOCK_DATA__"); | |
6971 | ||
e60a6f7b | 6972 | decl = build_decl (input_location, |
6973 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6974 | TREE_PUBLIC (decl) = 1; |
6975 | TREE_STATIC (decl) = 1; | |
df4d540f | 6976 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6977 | |
6978 | pushdecl (decl); | |
6979 | rest_of_decl_compilation (decl, 1, 0); | |
6980 | } | |
6981 | ||
b549d2a5 | 6982 | |
6a7084d7 | 6983 | /* Process the local variables of a BLOCK construct. */ |
6984 | ||
6985 | void | |
3c82e013 | 6986 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6987 | { |
6988 | tree decl; | |
6989 | ||
672bd2da | 6990 | saved_local_decls = NULL_TREE; |
a961ca30 | 6991 | has_coarray_vars = false; |
6992 | ||
6a7084d7 | 6993 | generate_local_vars (ns); |
6994 | ||
4fe73152 | 6995 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6996 | generate_coarray_init (ns); |
6997 | ||
267f3c67 | 6998 | decl = nreverse (saved_local_decls); |
6a7084d7 | 6999 | while (decl) |
7000 | { | |
7001 | tree next; | |
7002 | ||
1767a056 | 7003 | next = DECL_CHAIN (decl); |
7004 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 7005 | pushdecl (decl); |
7006 | decl = next; | |
7007 | } | |
7008 | saved_local_decls = NULL_TREE; | |
7009 | } | |
7010 | ||
7011 | ||
4ee9c684 | 7012 | #include "gt-fortran-trans-decl.h" |