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4ee9c684 | 1 | /* Backend function setup |
f1717362 | 2 | Copyright (C) 2002-2016 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
4cba6f60 | 26 | #include "target.h" |
27 | #include "function.h" | |
28 | #include "tree.h" | |
dc8078a3 | 29 | #include "gfortran.h" |
4cba6f60 | 30 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
31 | #include "trans.h" | |
32 | #include "stringpool.h" | |
33 | #include "cgraph.h" | |
b20a8bb4 | 34 | #include "fold-const.h" |
9ed99284 | 35 | #include "stor-layout.h" |
36 | #include "varasm.h" | |
37 | #include "attribs.h" | |
4ee9c684 | 38 | #include "tree-dump.h" |
7cbc820e | 39 | #include "toplev.h" /* For announce_function. */ |
df4d540f | 40 | #include "debug.h" |
126387b5 | 41 | #include "constructor.h" |
4ee9c684 | 42 | #include "trans-types.h" |
43 | #include "trans-array.h" | |
44 | #include "trans-const.h" | |
45 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
46 | #include "trans-stmt.h" | |
7c1a9598 | 47 | #include "gomp-constants.h" |
1ec957b0 | 48 | #include "gimplify.h" |
4ee9c684 | 49 | |
50 | #define MAX_LABEL_VALUE 99999 | |
51 | ||
52 | ||
53 | /* Holds the result of the function if no result variable specified. */ | |
54 | ||
55 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 56 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 57 | |
4ee9c684 | 58 | |
59 | /* Holds the variable DECLs for the current function. */ | |
60 | ||
d4163395 | 61 | static GTY(()) tree saved_function_decls; |
62 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 63 | |
431205b7 | 64 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
9579733e | 65 | static GTY(()) tree nonlocal_dummy_decls; |
4ee9c684 | 66 | |
6a7084d7 | 67 | /* Holds the variable DECLs that are locals. */ |
68 | ||
69 | static GTY(()) tree saved_local_decls; | |
70 | ||
4ee9c684 | 71 | /* The namespace of the module we're currently generating. Only used while |
72 | outputting decls for module variables. Do not rely on this being set. */ | |
73 | ||
74 | static gfc_namespace *module_namespace; | |
75 | ||
89ac8ba1 | 76 | /* The currently processed procedure symbol. */ |
77 | static gfc_symbol* current_procedure_symbol = NULL; | |
78 | ||
3adf245a | 79 | /* The currently processed module. */ |
80 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 81 | |
a961ca30 | 82 | /* With -fcoarray=lib: For generating the registering call |
83 | of static coarrays. */ | |
84 | static bool has_coarray_vars; | |
85 | static stmtblock_t caf_init_block; | |
86 | ||
87 | ||
4ee9c684 | 88 | /* List of static constructor functions. */ |
89 | ||
90 | tree gfc_static_ctors; | |
91 | ||
92 | ||
d566c3e0 | 93 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
94 | static int seen_ieee_symbol; | |
95 | ||
4ee9c684 | 96 | /* Function declarations for builtin library functions. */ |
97 | ||
4ee9c684 | 98 | tree gfor_fndecl_pause_numeric; |
99 | tree gfor_fndecl_pause_string; | |
100 | tree gfor_fndecl_stop_numeric; | |
101 | tree gfor_fndecl_stop_string; | |
070cc790 | 102 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 103 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 104 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 105 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 106 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 107 | tree gfor_fndecl_os_error; |
50ad5fa2 | 108 | tree gfor_fndecl_generate_error; |
7257a5d2 | 109 | tree gfor_fndecl_set_args; |
8c84a5de | 110 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 111 | tree gfor_fndecl_set_options; |
15774a8b | 112 | tree gfor_fndecl_set_convert; |
f23886ab | 113 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 114 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 115 | tree gfor_fndecl_ctime; |
116 | tree gfor_fndecl_fdate; | |
dbc97b88 | 117 | tree gfor_fndecl_ttynam; |
4ee9c684 | 118 | tree gfor_fndecl_in_pack; |
119 | tree gfor_fndecl_in_unpack; | |
120 | tree gfor_fndecl_associated; | |
72ce5390 | 121 | tree gfor_fndecl_system_clock4; |
122 | tree gfor_fndecl_system_clock8; | |
d566c3e0 | 123 | tree gfor_fndecl_ieee_procedure_entry; |
124 | tree gfor_fndecl_ieee_procedure_exit; | |
4ee9c684 | 125 | |
126 | ||
70b5944a | 127 | /* Coarray run-time library function decls. */ |
128 | tree gfor_fndecl_caf_init; | |
129 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 130 | tree gfor_fndecl_caf_this_image; |
131 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 132 | tree gfor_fndecl_caf_register; |
d0d776fb | 133 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 134 | tree gfor_fndecl_caf_get; |
135 | tree gfor_fndecl_caf_send; | |
136 | tree gfor_fndecl_caf_sendget; | |
eee0cf09 | 137 | tree gfor_fndecl_caf_get_by_ref; |
138 | tree gfor_fndecl_caf_send_by_ref; | |
139 | tree gfor_fndecl_caf_sendget_by_ref; | |
70b5944a | 140 | tree gfor_fndecl_caf_sync_all; |
71cf3ae6 | 141 | tree gfor_fndecl_caf_sync_memory; |
70b5944a | 142 | tree gfor_fndecl_caf_sync_images; |
ba4d9b7e | 143 | tree gfor_fndecl_caf_stop_str; |
144 | tree gfor_fndecl_caf_stop_numeric; | |
70b5944a | 145 | tree gfor_fndecl_caf_error_stop; |
146 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 147 | tree gfor_fndecl_caf_atomic_def; |
148 | tree gfor_fndecl_caf_atomic_ref; | |
149 | tree gfor_fndecl_caf_atomic_cas; | |
150 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 151 | tree gfor_fndecl_caf_lock; |
152 | tree gfor_fndecl_caf_unlock; | |
bd47f0bc | 153 | tree gfor_fndecl_caf_event_post; |
154 | tree gfor_fndecl_caf_event_wait; | |
155 | tree gfor_fndecl_caf_event_query; | |
52306a18 | 156 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 157 | tree gfor_fndecl_co_max; |
158 | tree gfor_fndecl_co_min; | |
e39efcef | 159 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 160 | tree gfor_fndecl_co_sum; |
3d2aa0e8 | 161 | tree gfor_fndecl_caf_is_present; |
70b5944a | 162 | |
70b5944a | 163 | |
4ee9c684 | 164 | /* Math functions. Many other math functions are handled in |
165 | trans-intrinsic.c. */ | |
166 | ||
920e54ef | 167 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 168 | tree gfor_fndecl_math_ishftc4; |
169 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 170 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 171 | |
172 | ||
173 | /* String functions. */ | |
174 | ||
4ee9c684 | 175 | tree gfor_fndecl_compare_string; |
176 | tree gfor_fndecl_concat_string; | |
177 | tree gfor_fndecl_string_len_trim; | |
178 | tree gfor_fndecl_string_index; | |
179 | tree gfor_fndecl_string_scan; | |
180 | tree gfor_fndecl_string_verify; | |
181 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 182 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 183 | tree gfor_fndecl_adjustl; |
184 | tree gfor_fndecl_adjustr; | |
b44437b9 | 185 | tree gfor_fndecl_select_string; |
40b806de | 186 | tree gfor_fndecl_compare_string_char4; |
187 | tree gfor_fndecl_concat_string_char4; | |
188 | tree gfor_fndecl_string_len_trim_char4; | |
189 | tree gfor_fndecl_string_index_char4; | |
190 | tree gfor_fndecl_string_scan_char4; | |
191 | tree gfor_fndecl_string_verify_char4; | |
192 | tree gfor_fndecl_string_trim_char4; | |
193 | tree gfor_fndecl_string_minmax_char4; | |
194 | tree gfor_fndecl_adjustl_char4; | |
195 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 196 | tree gfor_fndecl_select_string_char4; |
197 | ||
198 | ||
199 | /* Conversion between character kinds. */ | |
200 | tree gfor_fndecl_convert_char1_to_char4; | |
201 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 202 | |
203 | ||
204 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 205 | tree gfor_fndecl_size0; |
206 | tree gfor_fndecl_size1; | |
9b057c29 | 207 | tree gfor_fndecl_iargc; |
4ee9c684 | 208 | |
59e2a584 | 209 | /* Intrinsic functions implemented in Fortran. */ |
210 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 211 | tree gfor_fndecl_si_kind; |
212 | tree gfor_fndecl_sr_kind; | |
213 | ||
4e8e57b0 | 214 | /* BLAS gemm functions. */ |
215 | tree gfor_fndecl_sgemm; | |
216 | tree gfor_fndecl_dgemm; | |
217 | tree gfor_fndecl_cgemm; | |
218 | tree gfor_fndecl_zgemm; | |
219 | ||
4ee9c684 | 220 | |
221 | static void | |
222 | gfc_add_decl_to_parent_function (tree decl) | |
223 | { | |
22d678e8 | 224 | gcc_assert (decl); |
4ee9c684 | 225 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
226 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 227 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 228 | saved_parent_function_decls = decl; |
229 | } | |
230 | ||
231 | void | |
232 | gfc_add_decl_to_function (tree decl) | |
233 | { | |
22d678e8 | 234 | gcc_assert (decl); |
4ee9c684 | 235 | TREE_USED (decl) = 1; |
236 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 237 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 238 | saved_function_decls = decl; |
239 | } | |
240 | ||
6a7084d7 | 241 | static void |
242 | add_decl_as_local (tree decl) | |
243 | { | |
244 | gcc_assert (decl); | |
245 | TREE_USED (decl) = 1; | |
246 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 247 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 248 | saved_local_decls = decl; |
249 | } | |
250 | ||
4ee9c684 | 251 | |
b797d6d3 | 252 | /* Build a backend label declaration. Set TREE_USED for named labels. |
253 | The context of the label is always the current_function_decl. All | |
254 | labels are marked artificial. */ | |
4ee9c684 | 255 | |
256 | tree | |
257 | gfc_build_label_decl (tree label_id) | |
258 | { | |
259 | /* 2^32 temporaries should be enough. */ | |
260 | static unsigned int tmp_num = 1; | |
261 | tree label_decl; | |
262 | char *label_name; | |
263 | ||
264 | if (label_id == NULL_TREE) | |
265 | { | |
266 | /* Build an internal label name. */ | |
267 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
268 | label_id = get_identifier (label_name); | |
269 | } | |
270 | else | |
271 | label_name = NULL; | |
272 | ||
273 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 274 | label_decl = build_decl (input_location, |
275 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 276 | DECL_CONTEXT (label_decl) = current_function_decl; |
adc78298 | 277 | SET_DECL_MODE (label_decl, VOIDmode); |
4ee9c684 | 278 | |
b797d6d3 | 279 | /* We always define the label as used, even if the original source |
280 | file never references the label. We don't want all kinds of | |
281 | spurious warnings for old-style Fortran code with too many | |
282 | labels. */ | |
283 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 284 | |
b797d6d3 | 285 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 286 | return label_decl; |
287 | } | |
288 | ||
289 | ||
b31f705b | 290 | /* Set the backend source location of a decl. */ |
291 | ||
292 | void | |
293 | gfc_set_decl_location (tree decl, locus * loc) | |
294 | { | |
b31f705b | 295 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 296 | } |
297 | ||
298 | ||
4ee9c684 | 299 | /* Return the backend label declaration for a given label structure, |
300 | or create it if it doesn't exist yet. */ | |
301 | ||
302 | tree | |
303 | gfc_get_label_decl (gfc_st_label * lp) | |
304 | { | |
4ee9c684 | 305 | if (lp->backend_decl) |
306 | return lp->backend_decl; | |
307 | else | |
308 | { | |
309 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
310 | tree label_decl; | |
311 | ||
312 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 313 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 314 | |
315 | /* Build a mangled name for the label. */ | |
316 | sprintf (label_name, "__label_%.6d", lp->value); | |
317 | ||
318 | /* Build the LABEL_DECL node. */ | |
319 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
320 | ||
321 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 322 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 323 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 324 | else |
325 | DECL_ARTIFICIAL (label_decl) = 1; | |
326 | ||
327 | /* Store the label in the label list and return the LABEL_DECL. */ | |
328 | lp->backend_decl = label_decl; | |
329 | return label_decl; | |
330 | } | |
331 | } | |
332 | ||
333 | ||
334 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
335 | ||
336 | static tree | |
337 | gfc_sym_identifier (gfc_symbol * sym) | |
338 | { | |
0509d0ee | 339 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
340 | return (get_identifier ("MAIN__")); | |
341 | else | |
342 | return (get_identifier (sym->name)); | |
4ee9c684 | 343 | } |
344 | ||
345 | ||
346 | /* Construct mangled name from symbol name. */ | |
347 | ||
348 | static tree | |
349 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
350 | { | |
351 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
352 | ||
c5d33754 | 353 | /* Prevent the mangling of identifiers that have an assigned |
354 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 355 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
356 | return get_identifier (sym->binding_label); | |
a90fe829 | 357 | |
8b7e5587 | 358 | if (!sym->fn_result_spec) |
359 | { | |
360 | if (sym->module == NULL) | |
361 | return gfc_sym_identifier (sym); | |
362 | else | |
363 | { | |
364 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); | |
365 | return get_identifier (name); | |
366 | } | |
367 | } | |
4ee9c684 | 368 | else |
369 | { | |
8b7e5587 | 370 | /* This is an entity that is actually local to a module procedure |
371 | that appears in the result specification expression. Since | |
372 | sym->module will be a zero length string, we use ns->proc_name | |
373 | instead. */ | |
374 | if (sym->ns->proc_name && sym->ns->proc_name->module) | |
375 | { | |
376 | snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s", | |
377 | sym->ns->proc_name->module, | |
378 | sym->ns->proc_name->name, | |
379 | sym->name); | |
380 | return get_identifier (name); | |
381 | } | |
382 | else | |
383 | { | |
384 | snprintf (name, sizeof name, "__%s_PROC_%s", | |
385 | sym->ns->proc_name->name, sym->name); | |
386 | return get_identifier (name); | |
387 | } | |
4ee9c684 | 388 | } |
389 | } | |
390 | ||
391 | ||
392 | /* Construct mangled function name from symbol name. */ | |
393 | ||
394 | static tree | |
395 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
396 | { | |
397 | int has_underscore; | |
398 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
399 | ||
c5d33754 | 400 | /* It may be possible to simply use the binding label if it's |
401 | provided, and remove the other checks. Then we could use it | |
402 | for other things if we wished. */ | |
403 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 404 | sym->binding_label) |
c5d33754 | 405 | /* use the binding label rather than the mangled name */ |
406 | return get_identifier (sym->binding_label); | |
407 | ||
4b8eb6ca | 408 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 409 | || (sym->module != NULL && (sym->attr.external |
410 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 411 | && !sym->attr.module_procedure) |
4ee9c684 | 412 | { |
a2f97da7 | 413 | /* Main program is mangled into MAIN__. */ |
414 | if (sym->attr.is_main_program) | |
415 | return get_identifier ("MAIN__"); | |
416 | ||
417 | /* Intrinsic procedures are never mangled. */ | |
418 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 419 | return get_identifier (sym->name); |
420 | ||
829d7a08 | 421 | if (flag_underscoring) |
4ee9c684 | 422 | { |
423 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 424 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 425 | snprintf (name, sizeof name, "%s__", sym->name); |
426 | else | |
427 | snprintf (name, sizeof name, "%s_", sym->name); | |
428 | return get_identifier (name); | |
429 | } | |
430 | else | |
431 | return get_identifier (sym->name); | |
432 | } | |
433 | else | |
434 | { | |
f08a3f6f | 435 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 436 | return get_identifier (name); |
437 | } | |
438 | } | |
439 | ||
440 | ||
1236e28b | 441 | void |
442 | gfc_set_decl_assembler_name (tree decl, tree name) | |
443 | { | |
444 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
445 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
446 | } | |
447 | ||
448 | ||
5ed82495 | 449 | /* Returns true if a variable of specified size should go on the stack. */ |
450 | ||
451 | int | |
452 | gfc_can_put_var_on_stack (tree size) | |
453 | { | |
454 | unsigned HOST_WIDE_INT low; | |
455 | ||
456 | if (!INTEGER_CST_P (size)) | |
457 | return 0; | |
458 | ||
eb106faf | 459 | if (flag_max_stack_var_size < 0) |
5ed82495 | 460 | return 1; |
461 | ||
e1d65c9f | 462 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 463 | return 0; |
464 | ||
f9ae6f95 | 465 | low = TREE_INT_CST_LOW (size); |
eb106faf | 466 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 467 | return 0; |
468 | ||
469 | /* TODO: Set a per-function stack size limit. */ | |
470 | ||
471 | return 1; | |
472 | } | |
473 | ||
474 | ||
b7bf3f81 | 475 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
476 | an expression involving its corresponding pointer. There are | |
477 | 2 cases; one for variable size arrays, and one for everything else, | |
478 | because variable-sized arrays require one fewer level of | |
479 | indirection. */ | |
480 | ||
481 | static void | |
482 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
483 | { | |
484 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
485 | tree value; | |
486 | ||
487 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 488 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 489 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
490 | ptr_decl); | |
b7bf3f81 | 491 | |
492 | /* Check to see if we're dealing with a variable-sized array. */ | |
493 | if (sym->attr.dimension | |
a90fe829 | 494 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
495 | { | |
942043f8 | 496 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 497 | them here. */ |
498 | value = convert (TREE_TYPE (decl), ptr_decl); | |
499 | } | |
500 | else | |
501 | { | |
502 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
503 | ptr_decl); | |
389dd41b | 504 | value = build_fold_indirect_ref_loc (input_location, |
505 | ptr_decl); | |
b7bf3f81 | 506 | } |
507 | ||
508 | SET_DECL_VALUE_EXPR (decl, value); | |
509 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 510 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 511 | } |
512 | ||
513 | ||
b9c7fce7 | 514 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 515 | |
516 | static void | |
b9c7fce7 | 517 | gfc_finish_decl (tree decl) |
4ee9c684 | 518 | { |
b9c7fce7 | 519 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
520 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 521 | |
fe732a9b | 522 | if (!VAR_P (decl)) |
b9c7fce7 | 523 | return; |
4ee9c684 | 524 | |
b9c7fce7 | 525 | if (DECL_SIZE (decl) == NULL_TREE |
526 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
527 | layout_decl (decl, 0); | |
528 | ||
529 | /* A few consistency checks. */ | |
530 | /* A static variable with an incomplete type is an error if it is | |
531 | initialized. Also if it is not file scope. Otherwise, let it | |
532 | through, but if it is not `extern' then it may cause an error | |
533 | message later. */ | |
534 | /* An automatic variable with an incomplete type is an error. */ | |
535 | ||
536 | /* We should know the storage size. */ | |
537 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 538 | || (TREE_STATIC (decl) |
b9c7fce7 | 539 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
540 | : DECL_EXTERNAL (decl))); | |
541 | ||
542 | /* The storage size should be constant. */ | |
543 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
544 | || !DECL_SIZE (decl) | |
545 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 546 | } |
547 | ||
548 | ||
cf5f881f | 549 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
550 | ||
551 | void | |
552 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
553 | { | |
554 | if (!attr->dimension && !attr->codimension) | |
555 | { | |
556 | /* Handle scalar allocatable variables. */ | |
557 | if (attr->allocatable) | |
558 | { | |
559 | gfc_allocate_lang_decl (decl); | |
560 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
561 | } | |
562 | /* Handle scalar pointer variables. */ | |
563 | if (attr->pointer) | |
564 | { | |
565 | gfc_allocate_lang_decl (decl); | |
566 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
567 | } | |
568 | } | |
569 | } | |
570 | ||
571 | ||
4ee9c684 | 572 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
573 | ||
574 | static void | |
575 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
576 | { | |
c1977dbe | 577 | tree new_type; |
b549d2a5 | 578 | |
b7bf3f81 | 579 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 580 | if (sym->attr.cray_pointee) |
b7bf3f81 | 581 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 582 | |
845a9546 | 583 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
584 | This is the equivalent of the TARGET variables. | |
585 | We also need to set this if the variable is passed by reference in a | |
586 | CALL statement. */ | |
4ee9c684 | 587 | if (sym->attr.target) |
588 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 589 | |
4ee9c684 | 590 | /* If it wasn't used we wouldn't be getting it. */ |
591 | TREE_USED (decl) = 1; | |
592 | ||
7415cfe4 | 593 | if (sym->attr.flavor == FL_PARAMETER |
594 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
595 | TREE_READONLY (decl) = 1; | |
596 | ||
4ee9c684 | 597 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
598 | because this would add them to the current scope rather than the | |
599 | function scope. */ | |
600 | if (current_function_decl != NULL_TREE) | |
601 | { | |
7af6a4af | 602 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 603 | || sym->result == sym) |
4ee9c684 | 604 | gfc_add_decl_to_function (decl); |
6a7084d7 | 605 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
606 | /* This is a BLOCK construct. */ | |
607 | add_decl_as_local (decl); | |
4ee9c684 | 608 | else |
609 | gfc_add_decl_to_parent_function (decl); | |
610 | } | |
611 | ||
b7bf3f81 | 612 | if (sym->attr.cray_pointee) |
613 | return; | |
614 | ||
c5cb468c | 615 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 616 | { |
617 | /* We need to put variables that are bind(c) into the common | |
618 | segment of the object file, because this is what C would do. | |
619 | gfortran would typically put them in either the BSS or | |
620 | initialized data segments, and only mark them as common if | |
621 | they were part of common blocks. However, if they are not put | |
ea657963 | 622 | into common space, then C cannot initialize global Fortran |
c5d33754 | 623 | variables that it interoperates with and the draft says that |
624 | either Fortran or C should be able to initialize it (but not | |
625 | both, of course.) (J3/04-007, section 15.3). */ | |
626 | TREE_PUBLIC(decl) = 1; | |
627 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 628 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
629 | { | |
630 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
631 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
632 | } | |
c5d33754 | 633 | } |
a90fe829 | 634 | |
4ee9c684 | 635 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 636 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 637 | { |
638 | DECL_EXTERNAL (decl) = 1; | |
639 | TREE_PUBLIC (decl) = 1; | |
640 | } | |
8b7e5587 | 641 | else if (sym->fn_result_spec && !sym->ns->proc_name->module) |
642 | { | |
643 | ||
644 | if (sym->ns->proc_name->attr.if_source != IFSRC_DECL) | |
645 | DECL_EXTERNAL (decl) = 1; | |
646 | else | |
647 | TREE_STATIC (decl) = 1; | |
648 | ||
649 | TREE_PUBLIC (decl) = 1; | |
650 | } | |
4f0fae8e | 651 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 652 | { |
6b20224d | 653 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 654 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 655 | |
c8ddfd5d | 656 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 657 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 658 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
659 | { | |
660 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
661 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
662 | } | |
4ee9c684 | 663 | } |
664 | ||
f0d4969f | 665 | /* Derived types are a bit peculiar because of the possibility of |
666 | a default initializer; this must be applied each time the variable | |
667 | comes into scope it therefore need not be static. These variables | |
668 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 669 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 670 | SAVE_EXPLICIT. */ |
671 | if (!sym->attr.use_assoc | |
672 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 673 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 674 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 675 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 676 | TREE_STATIC (decl) = 1; |
ef814c81 | 677 | |
9f732c4e | 678 | /* If derived-type variables with DTIO procedures are not made static |
679 | some bits of code referencing them get optimized away. | |
680 | TODO Understand why this is so and fix it. */ | |
681 | if (!sym->attr.use_assoc | |
682 | && ((sym->ts.type == BT_DERIVED | |
683 | && sym->ts.u.derived->attr.has_dtio_procs) | |
684 | || (sym->ts.type == BT_CLASS | |
685 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
686 | TREE_STATIC (decl) = 1; | |
687 | ||
ef814c81 | 688 | if (sym->attr.volatile_) |
689 | { | |
ef814c81 | 690 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 691 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 692 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
693 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 694 | } |
ef814c81 | 695 | |
4ee9c684 | 696 | /* Keep variables larger than max-stack-var-size off stack. */ |
8e652fcf | 697 | if (!sym->ns->proc_name->attr.recursive && !sym->attr.automatic |
4ee9c684 | 698 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
a3f2c0e1 | 699 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
700 | /* Put variable length auto array pointers always into stack. */ | |
701 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
702 | || sym->attr.dimension == 0 | |
703 | || sym->as->type != AS_EXPLICIT | |
704 | || sym->attr.pointer | |
705 | || sym->attr.allocatable) | |
706 | && !DECL_ARTIFICIAL (decl)) | |
14eab729 | 707 | { |
708 | TREE_STATIC (decl) = 1; | |
709 | ||
710 | /* Because the size of this variable isn't known until now, we may have | |
711 | greedily added an initializer to this variable (in build_init_assign) | |
712 | even though the max-stack-var-size indicates the variable should be | |
713 | static. Therefore we rip out the automatic initializer here and | |
714 | replace it with a static one. */ | |
715 | gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); | |
716 | gfc_code *prev = NULL; | |
717 | gfc_code *code = sym->ns->code; | |
718 | while (code && code->op == EXEC_INIT_ASSIGN) | |
719 | { | |
720 | /* Look for an initializer meant for this symbol. */ | |
721 | if (code->expr1->symtree == st) | |
722 | { | |
723 | if (prev) | |
724 | prev->next = code->next; | |
725 | else | |
726 | sym->ns->code = code->next; | |
727 | ||
728 | break; | |
729 | } | |
730 | ||
731 | prev = code; | |
732 | code = code->next; | |
733 | } | |
734 | if (code && code->op == EXEC_INIT_ASSIGN) | |
735 | { | |
736 | /* Keep the init expression for a static initializer. */ | |
737 | sym->value = code->expr2; | |
738 | /* Cleanup the defunct code object, without freeing the init expr. */ | |
739 | code->expr2 = NULL; | |
740 | gfc_free_statement (code); | |
741 | free (code); | |
742 | } | |
743 | } | |
764f1175 | 744 | |
745 | /* Handle threadprivate variables. */ | |
9dda1f80 | 746 | if (sym->attr.threadprivate |
764f1175 | 747 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 748 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 749 | |
750 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 751 | } |
752 | ||
753 | ||
754 | /* Allocate the lang-specific part of a decl. */ | |
755 | ||
756 | void | |
757 | gfc_allocate_lang_decl (tree decl) | |
758 | { | |
cf5f881f | 759 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
760 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 761 | } |
762 | ||
763 | /* Remember a symbol to generate initialization/cleanup code at function | |
764 | entry/exit. */ | |
765 | ||
766 | static void | |
767 | gfc_defer_symbol_init (gfc_symbol * sym) | |
768 | { | |
769 | gfc_symbol *p; | |
770 | gfc_symbol *last; | |
771 | gfc_symbol *head; | |
772 | ||
773 | /* Don't add a symbol twice. */ | |
774 | if (sym->tlink) | |
775 | return; | |
776 | ||
777 | last = head = sym->ns->proc_name; | |
778 | p = last->tlink; | |
779 | ||
780 | /* Make sure that setup code for dummy variables which are used in the | |
781 | setup of other variables is generated first. */ | |
782 | if (sym->attr.dummy) | |
783 | { | |
784 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
785 | This is a circular list, so don't go past the head. */ | |
786 | while (p != head | |
787 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
788 | { | |
789 | last = p; | |
790 | p = p->tlink; | |
791 | } | |
792 | } | |
793 | /* Insert in between last and p. */ | |
794 | last->tlink = sym; | |
795 | sym->tlink = p; | |
796 | } | |
797 | ||
798 | ||
9f5a9ac5 | 799 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
800 | backend_decl for a module symbol, if it all ready exists. If the | |
801 | module gsymbol does not exist, it is created. If the symbol does | |
802 | not exist, it is added to the gsymbol namespace. Returns true if | |
803 | an existing backend_decl is found. */ | |
804 | ||
805 | bool | |
806 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
807 | { | |
808 | gfc_gsymbol *gsym; | |
809 | gfc_symbol *s; | |
810 | gfc_symtree *st; | |
811 | ||
812 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
813 | ||
814 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
815 | { | |
816 | st = NULL; | |
817 | s = NULL; | |
818 | ||
d7cd448a | 819 | /* Check for a symbol with the same name. */ |
9f5a9ac5 | 820 | if (gsym) |
821 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
822 | ||
823 | if (!s) | |
824 | { | |
825 | if (!gsym) | |
826 | { | |
827 | gsym = gfc_get_gsymbol (sym->module); | |
828 | gsym->type = GSYM_MODULE; | |
829 | gsym->ns = gfc_get_namespace (NULL, 0); | |
830 | } | |
831 | ||
832 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
833 | st->n.sym = sym; | |
834 | sym->refs++; | |
835 | } | |
d7cd448a | 836 | else if (gfc_fl_struct (sym->attr.flavor)) |
9f5a9ac5 | 837 | { |
c2958b6b | 838 | if (s && s->attr.flavor == FL_PROCEDURE) |
839 | { | |
840 | gfc_interface *intr; | |
841 | gcc_assert (s->attr.generic); | |
842 | for (intr = s->generic; intr; intr = intr->next) | |
d7cd448a | 843 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c2958b6b | 844 | { |
845 | s = intr->sym; | |
846 | break; | |
847 | } | |
848 | } | |
849 | ||
d7cd448a | 850 | /* Normally we can assume that s is a derived-type symbol since it |
851 | shares a name with the derived-type sym. However if sym is a | |
852 | STRUCTURE, it may in fact share a name with any other basic type | |
853 | variable. If s is in fact of derived type then we can continue | |
854 | looking for a duplicate type declaration. */ | |
855 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
856 | { | |
857 | s = s->ts.u.derived; | |
858 | } | |
859 | ||
860 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
861 | { | |
862 | if (s->attr.flavor == FL_UNION) | |
863 | s->backend_decl = gfc_get_union_type (s); | |
864 | else | |
865 | s->backend_decl = gfc_get_derived_type (s); | |
866 | } | |
9f5a9ac5 | 867 | gfc_copy_dt_decls_ifequal (s, sym, true); |
868 | return true; | |
869 | } | |
870 | else if (s->backend_decl) | |
871 | { | |
85ec2f13 | 872 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 873 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
874 | true); | |
875 | else if (sym->ts.type == BT_CHARACTER) | |
876 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
877 | sym->backend_decl = s->backend_decl; | |
878 | return true; | |
879 | } | |
880 | } | |
881 | return false; | |
882 | } | |
883 | ||
884 | ||
4ee9c684 | 885 | /* Create an array index type variable with function scope. */ |
886 | ||
887 | static tree | |
888 | create_index_var (const char * pfx, int nest) | |
889 | { | |
890 | tree decl; | |
891 | ||
892 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
893 | if (nest) | |
894 | gfc_add_decl_to_parent_function (decl); | |
895 | else | |
896 | gfc_add_decl_to_function (decl); | |
897 | return decl; | |
898 | } | |
899 | ||
900 | ||
901 | /* Create variables to hold all the non-constant bits of info for a | |
902 | descriptorless array. Remember these in the lang-specific part of the | |
903 | type. */ | |
904 | ||
905 | static void | |
906 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
907 | { | |
908 | tree type; | |
909 | int dim; | |
910 | int nest; | |
7b82374f | 911 | gfc_namespace* procns; |
c6793847 | 912 | symbol_attribute *array_attr; |
913 | gfc_array_spec *as; | |
914 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 915 | |
916 | type = TREE_TYPE (decl); | |
c6793847 | 917 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
918 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 919 | |
920 | /* We just use the descriptor, if there is one. */ | |
921 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
922 | return; | |
923 | ||
22d678e8 | 924 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 925 | procns = gfc_find_proc_namespace (sym->ns); |
926 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 927 | && !sym->attr.contained; |
928 | ||
c6793847 | 929 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
930 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 931 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
932 | { | |
933 | tree token; | |
ac36faf0 | 934 | tree token_type = build_qualified_type (pvoid_type_node, |
935 | TYPE_QUAL_RESTRICT); | |
936 | ||
937 | if (sym->module && (sym->attr.use_assoc | |
938 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
939 | { | |
940 | tree token_name | |
941 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
942 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
943 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
944 | token_type); | |
3adf245a | 945 | if (sym->attr.use_assoc) |
946 | DECL_EXTERNAL (token) = 1; | |
947 | else | |
948 | TREE_STATIC (token) = 1; | |
949 | ||
c8ddfd5d | 950 | TREE_PUBLIC (token) = 1; |
951 | ||
952 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
953 | { | |
954 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
955 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
956 | } | |
ac36faf0 | 957 | } |
958 | else | |
3adf245a | 959 | { |
960 | token = gfc_create_var_np (token_type, "caf_token"); | |
961 | TREE_STATIC (token) = 1; | |
962 | } | |
a961ca30 | 963 | |
a961ca30 | 964 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
965 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 966 | DECL_NONALIASED (token) = 1; |
967 | ||
968 | if (sym->module && !sym->attr.use_assoc) | |
969 | { | |
970 | pushdecl (token); | |
971 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
972 | gfc_module_add_decl (cur_module, token); | |
973 | } | |
974 | else | |
975 | gfc_add_decl_to_function (token); | |
a961ca30 | 976 | } |
977 | ||
4ee9c684 | 978 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
979 | { | |
980 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 981 | { |
982 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
983 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
984 | } | |
9ca15c9b | 985 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 986 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 987 | && (as->type != AS_ASSUMED_SIZE |
988 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 989 | { |
990 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
991 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
992 | } | |
4ee9c684 | 993 | |
994 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 995 | { |
996 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
997 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
998 | } | |
4ee9c684 | 999 | } |
076094b7 | 1000 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
1001 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
1002 | { | |
1003 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
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 | } | |
1008 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
1009 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
1010 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
1011 | { | |
1012 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1013 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1014 | } | |
1015 | } | |
4ee9c684 | 1016 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
1017 | { | |
1018 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
1019 | "offset"); | |
86254bbf | 1020 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
1021 | ||
4ee9c684 | 1022 | if (nest) |
1023 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1024 | else | |
1025 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1026 | } | |
d4163395 | 1027 | |
1028 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 1029 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 1030 | { |
1031 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
1032 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
1033 | } | |
d4163395 | 1034 | |
1035 | if (POINTER_TYPE_P (type)) | |
1036 | { | |
1037 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
1038 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
1039 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
1040 | type = TREE_TYPE (type); | |
1041 | } | |
1042 | ||
1043 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
1044 | { | |
1045 | tree size, range; | |
1046 | ||
fd779e1d | 1047 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1048 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 1049 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
1050 | size); | |
1051 | TYPE_DOMAIN (type) = range; | |
1052 | layout_type (type); | |
1053 | } | |
6cf159a6 | 1054 | |
3fe3b7ca | 1055 | if (TYPE_NAME (type) != NULL_TREE && as->rank > 0 |
c6793847 | 1056 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
fe732a9b | 1057 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
6cf159a6 | 1058 | { |
1059 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1060 | ||
c6793847 | 1061 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 1062 | { |
1063 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1064 | gtype = TREE_TYPE (gtype); | |
1065 | } | |
1066 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1067 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
1068 | TYPE_NAME (type) = NULL_TREE; | |
1069 | } | |
1070 | ||
1071 | if (TYPE_NAME (type) == NULL_TREE) | |
1072 | { | |
1073 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
1074 | ||
c6793847 | 1075 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 1076 | { |
7130ec9d | 1077 | tree lbound, ubound; |
1078 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
1079 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
1080 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 1081 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 1082 | /* Ensure the bound variables aren't optimized out at -O0. |
1083 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 1084 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1085 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1086 | end up in debug info. */ | |
fe732a9b | 1087 | if (lbound |
1088 | && VAR_P (lbound) | |
1089 | && DECL_ARTIFICIAL (lbound) | |
1090 | && DECL_IGNORED_P (lbound)) | |
7130ec9d | 1091 | { |
1092 | if (DECL_NAME (lbound) | |
1093 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1094 | "lbound") != 0) | |
84bfaaeb | 1095 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 1096 | DECL_IGNORED_P (lbound) = 0; |
1097 | } | |
fe732a9b | 1098 | if (ubound |
1099 | && VAR_P (ubound) | |
1100 | && DECL_ARTIFICIAL (ubound) | |
1101 | && DECL_IGNORED_P (ubound)) | |
7130ec9d | 1102 | { |
1103 | if (DECL_NAME (ubound) | |
1104 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1105 | "ubound") != 0) | |
84bfaaeb | 1106 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1107 | DECL_IGNORED_P (ubound) = 0; |
1108 | } | |
6cf159a6 | 1109 | } |
e60a6f7b | 1110 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1111 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1112 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1113 | } | |
4ee9c684 | 1114 | } |
1115 | ||
1116 | ||
1117 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1118 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1119 | initialization, and construct full type information. */ |
1120 | ||
1121 | static tree | |
1122 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1123 | { | |
1124 | tree decl; | |
1125 | tree type; | |
1126 | gfc_array_spec *as; | |
c6793847 | 1127 | symbol_attribute *array_attr; |
4ee9c684 | 1128 | char *name; |
3d8dea5a | 1129 | gfc_packed packed; |
4ee9c684 | 1130 | int n; |
1131 | bool known_size; | |
c6793847 | 1132 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1133 | ||
1134 | /* Use the array as and attr. */ | |
1135 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1136 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1137 | ||
1138 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1139 | For class arrays the information if sym is an allocatable or pointer | |
1140 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1141 | too many reasons to be of use here). */ | |
1142 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1143 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1144 | || array_attr->allocatable | |
1145 | || (as && as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1146 | return dummy; |
1147 | ||
c6793847 | 1148 | /* Add to list of variables if not a fake result variable. |
1149 | These symbols are set on the symbol only, not on the class component. */ | |
4ee9c684 | 1150 | if (sym->attr.result || sym->attr.dummy) |
1151 | gfc_defer_symbol_init (sym); | |
1152 | ||
c6793847 | 1153 | /* For a class array the array descriptor is in the _data component, while |
1154 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1155 | descriptor. */ | |
1156 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1157 | : TREE_TYPE (dummy)); | |
1158 | /* type now is the array descriptor w/o any indirection. */ | |
22d678e8 | 1159 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1160 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1161 | |
f888a3fb | 1162 | /* Do we know the element size? */ |
4ee9c684 | 1163 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1164 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1165 | |
c6793847 | 1166 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1167 | { |
1168 | /* For descriptorless arrays with known element size the actual | |
1169 | argument is sufficient. */ | |
4ee9c684 | 1170 | gfc_build_qualified_array (dummy, sym); |
1171 | return dummy; | |
1172 | } | |
1173 | ||
4ee9c684 | 1174 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1175 | { | |
cb8e3560 | 1176 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1177 | packed = PACKED_NO; |
3d235846 | 1178 | |
1179 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1180 | are not repacked. */ | |
829d7a08 | 1181 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1182 | { |
1183 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1184 | packed = PACKED_FULL; |
4ee9c684 | 1185 | } |
1186 | else | |
1187 | { | |
1188 | if (as->type == AS_EXPLICIT) | |
1189 | { | |
3d8dea5a | 1190 | packed = PACKED_FULL; |
4ee9c684 | 1191 | for (n = 0; n < as->rank; n++) |
1192 | { | |
1193 | if (!(as->upper[n] | |
1194 | && as->lower[n] | |
1195 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1196 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1197 | { |
1198 | packed = PACKED_PARTIAL; | |
1199 | break; | |
1200 | } | |
4ee9c684 | 1201 | } |
1202 | } | |
1203 | else | |
3d8dea5a | 1204 | packed = PACKED_PARTIAL; |
4ee9c684 | 1205 | } |
1206 | ||
c6793847 | 1207 | /* For classarrays the element type is required, but |
1208 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1209 | type = is_classarray ? gfc_get_element_type (type) | |
1210 | : gfc_typenode_for_spec (&sym->ts); | |
1211 | type = gfc_get_nodesc_array_type (type, as, packed, | |
e1b3b79b | 1212 | !sym->attr.target); |
4ee9c684 | 1213 | } |
1214 | else | |
1215 | { | |
1216 | /* We now have an expression for the element size, so create a fully | |
1217 | qualified type. Reset sym->backend decl or this will just return the | |
1218 | old type. */ | |
d95efb59 | 1219 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1220 | sym->backend_decl = NULL_TREE; |
1221 | type = gfc_sym_type (sym); | |
3d8dea5a | 1222 | packed = PACKED_FULL; |
4ee9c684 | 1223 | } |
1224 | ||
1225 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1226 | decl = build_decl (input_location, |
1227 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1228 | |
1229 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1230 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1231 | TREE_PUBLIC (decl) = 0; |
1232 | TREE_STATIC (decl) = 0; | |
1233 | DECL_EXTERNAL (decl) = 0; | |
1234 | ||
a1f1e248 | 1235 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1236 | if (sym->attr.optional) | |
1237 | TREE_NO_WARNING (decl) = 1; | |
1238 | ||
4ee9c684 | 1239 | /* We should never get deferred shape arrays here. We used to because of |
1240 | frontend bugs. */ | |
c6793847 | 1241 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1242 | |
3d8dea5a | 1243 | if (packed == PACKED_PARTIAL) |
1244 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1245 | else if (packed == PACKED_FULL) | |
1246 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1247 | |
1248 | gfc_build_qualified_array (decl, sym); | |
1249 | ||
1250 | if (DECL_LANG_SPECIFIC (dummy)) | |
1251 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1252 | else | |
1253 | gfc_allocate_lang_decl (decl); | |
1254 | ||
1255 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1256 | ||
1257 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1258 | || sym->attr.contained) | |
1259 | gfc_add_decl_to_function (decl); | |
1260 | else | |
1261 | gfc_add_decl_to_parent_function (decl); | |
1262 | ||
1263 | return decl; | |
1264 | } | |
1265 | ||
9579733e | 1266 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1267 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1268 | pointing to the artificial variable for debug info purposes. */ | |
1269 | ||
1270 | static void | |
1271 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1272 | { | |
1273 | tree decl, dummy; | |
1274 | ||
1275 | if (! nonlocal_dummy_decl_pset) | |
431205b7 | 1276 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
9579733e | 1277 | |
431205b7 | 1278 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
9579733e | 1279 | return; |
1280 | ||
1281 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1282 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1283 | TREE_TYPE (sym->backend_decl)); |
1284 | DECL_ARTIFICIAL (decl) = 0; | |
1285 | TREE_USED (decl) = 1; | |
1286 | TREE_PUBLIC (decl) = 0; | |
1287 | TREE_STATIC (decl) = 0; | |
1288 | DECL_EXTERNAL (decl) = 0; | |
1289 | if (DECL_BY_REFERENCE (dummy)) | |
1290 | DECL_BY_REFERENCE (decl) = 1; | |
1291 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1292 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1293 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1294 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1295 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1296 | nonlocal_dummy_decls = decl; |
1297 | } | |
4ee9c684 | 1298 | |
1299 | /* Return a constant or a variable to use as a string length. Does not | |
1300 | add the decl to the current scope. */ | |
1301 | ||
1302 | static tree | |
1303 | gfc_create_string_length (gfc_symbol * sym) | |
1304 | { | |
eeebe20b | 1305 | gcc_assert (sym->ts.u.cl); |
1306 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1307 | |
eeebe20b | 1308 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1309 | { |
a4abf8a0 | 1310 | tree length; |
774bbd60 | 1311 | const char *name; |
4ee9c684 | 1312 | |
873f242d | 1313 | /* The string length variable shall be in static memory if it is either |
1314 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1315 | relevant is "len=:" - otherwise, it is either a constant length or | |
1316 | it is an automatic variable. */ | |
be125be0 | 1317 | bool static_length = sym->attr.save |
1318 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1319 | || (flag_max_stack_var_size == 0 |
873f242d | 1320 | && sym->ts.deferred && !sym->attr.dummy |
1321 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1322 | |
1323 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1324 | variables as some systems do not support the "." in the assembler name. | |
1325 | For nonstatic variables, the "." does not appear in assembler. */ | |
1326 | if (static_length) | |
1327 | { | |
1328 | if (sym->module) | |
1329 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1330 | sym->name); | |
1331 | else | |
1332 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1333 | } | |
1334 | else if (sym->module) | |
774bbd60 | 1335 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1336 | else | |
1337 | name = gfc_get_string (".%s", sym->name); | |
1338 | ||
e60a6f7b | 1339 | length = build_decl (input_location, |
1340 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1341 | gfc_charlen_type_node); |
4ee9c684 | 1342 | DECL_ARTIFICIAL (length) = 1; |
1343 | TREE_USED (length) = 1; | |
d4163395 | 1344 | if (sym->ns->proc_name->tlink != NULL) |
1345 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1346 | |
eeebe20b | 1347 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1348 | |
be125be0 | 1349 | if (static_length) |
774bbd60 | 1350 | TREE_STATIC (length) = 1; |
1351 | ||
1352 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1353 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1354 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1355 | } |
1356 | ||
eeebe20b | 1357 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1358 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1359 | } |
1360 | ||
c8f1568f | 1361 | /* If a variable is assigned a label, we add another two auxiliary |
1362 | variables. */ | |
1363 | ||
1364 | static void | |
1365 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1366 | { | |
1367 | tree addr; | |
1368 | tree length; | |
1369 | tree decl; | |
1370 | ||
1371 | gcc_assert (sym->backend_decl); | |
1372 | ||
1373 | decl = sym->backend_decl; | |
1374 | gfc_allocate_lang_decl (decl); | |
1375 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1376 | length = build_decl (input_location, |
1377 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1378 | gfc_charlen_type_node); |
e60a6f7b | 1379 | addr = build_decl (input_location, |
1380 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1381 | pvoid_type_node); |
1382 | gfc_finish_var_decl (length, sym); | |
1383 | gfc_finish_var_decl (addr, sym); | |
1384 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1385 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1386 | target label's address. Otherwise, value is the length of a format string | |
1387 | and ASSIGN_ADDR is its address. */ | |
1388 | if (TREE_STATIC (length)) | |
35bf1214 | 1389 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1390 | else |
1391 | gfc_defer_symbol_init (sym); | |
1392 | ||
1393 | GFC_DECL_STRING_LEN (decl) = length; | |
1394 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1395 | } | |
4ee9c684 | 1396 | |
36b0a1b0 | 1397 | |
1398 | static tree | |
1399 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1400 | { | |
1401 | unsigned id; | |
1402 | tree attr; | |
1403 | ||
1404 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1405 | if (sym_attr.ext_attr & (1 << id)) | |
1406 | { | |
1407 | attr = build_tree_list ( | |
1408 | get_identifier (ext_attr_list[id].middle_end_name), | |
1409 | NULL_TREE); | |
1410 | list = chainon (list, attr); | |
1411 | } | |
1412 | ||
44b49e6b | 1413 | if (sym_attr.omp_declare_target_link) |
1414 | list = tree_cons (get_identifier ("omp declare target link"), | |
1415 | NULL_TREE, list); | |
1416 | else if (sym_attr.omp_declare_target) | |
691447ab | 1417 | list = tree_cons (get_identifier ("omp declare target"), |
1418 | NULL_TREE, list); | |
1419 | ||
7c1a9598 | 1420 | if (sym_attr.oacc_function) |
1421 | { | |
1422 | tree dims = NULL_TREE; | |
1423 | int ix; | |
1424 | int level = sym_attr.oacc_function - 1; | |
1425 | ||
1426 | for (ix = GOMP_DIM_MAX; ix--;) | |
1427 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1428 | integer_zero_node, dims); | |
1429 | ||
1430 | list = tree_cons (get_identifier ("oacc function"), | |
1431 | dims, list); | |
1432 | } | |
1433 | ||
36b0a1b0 | 1434 | return list; |
1435 | } | |
1436 | ||
1437 | ||
802532b9 | 1438 | static void build_function_decl (gfc_symbol * sym, bool global); |
1439 | ||
1440 | ||
4ee9c684 | 1441 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1442 | exist. */ | |
1443 | ||
1444 | tree | |
1445 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1446 | { | |
1447 | tree decl; | |
1448 | tree length = NULL_TREE; | |
36b0a1b0 | 1449 | tree attributes; |
4ee9c684 | 1450 | int byref; |
cd2c99b8 | 1451 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1452 | bool fun_or_res; |
4ee9c684 | 1453 | |
0b5dc8b5 | 1454 | gcc_assert (sym->attr.referenced |
9e45357a | 1455 | || sym->attr.flavor == FL_PROCEDURE |
1456 | || sym->attr.use_assoc | |
4b8eb6ca | 1457 | || sym->attr.used_in_submodule |
9e45357a | 1458 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1459 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1460 | && sym->backend_decl)); | |
4ee9c684 | 1461 | |
ff70e443 | 1462 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1463 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1464 | else | |
1465 | byref = 0; | |
1466 | ||
09c509ed | 1467 | /* Make sure that the vtab for the declared type is completed. */ |
1468 | if (sym->ts.type == BT_CLASS) | |
1469 | { | |
50b4b37b | 1470 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1471 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1472 | { |
1473 | gfc_find_derived_vtab (c->ts.u.derived); | |
1474 | gfc_get_derived_type (sym->ts.u.derived); | |
1475 | } | |
09c509ed | 1476 | } |
1477 | ||
617125a6 | 1478 | /* All deferred character length procedures need to retain the backend |
1479 | decl, which is a pointer to the character length in the caller's | |
1480 | namespace and to declare a local character length. */ | |
1481 | if (!byref && sym->attr.function | |
1482 | && sym->ts.type == BT_CHARACTER | |
1483 | && sym->ts.deferred | |
1484 | && sym->ts.u.cl->passed_length == NULL | |
1485 | && sym->ts.u.cl->backend_decl | |
1486 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1487 | { | |
1488 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1489 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1490 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
617125a6 | 1491 | } |
1492 | ||
8b9eb27e | 1493 | fun_or_res = byref && (sym->attr.result |
1494 | || (sym->attr.function && sym->ts.deferred)); | |
1495 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1496 | { |
1497 | /* Return via extra parameter. */ | |
1498 | if (sym->attr.result && byref | |
1499 | && !sym->backend_decl) | |
1500 | { | |
1501 | sym->backend_decl = | |
1502 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1503 | /* For entry master function skip over the __entry |
1504 | argument. */ | |
1505 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1506 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1507 | } |
1508 | ||
1509 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1510 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1511 | |
1512 | /* Create a character length variable. */ | |
1513 | if (sym->ts.type == BT_CHARACTER) | |
1514 | { | |
617125a6 | 1515 | /* For a deferred dummy, make a new string length variable. */ |
1516 | if (sym->ts.deferred | |
1517 | && | |
1518 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1519 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1520 | ||
d1b1479f | 1521 | if (sym->ts.deferred && byref) |
617125a6 | 1522 | { |
d1b1479f | 1523 | /* The string length of a deferred char array is stored in the |
1524 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1525 | marked as a result. Exempt this variable from generating a | |
1526 | temporary for it. */ | |
1527 | if (sym->attr.result) | |
1528 | { | |
1529 | /* We need to insert a indirect ref for param decls. */ | |
1530 | if (sym->ts.u.cl->backend_decl | |
1531 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1532 | { |
1533 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
a4731200 | 1534 | sym->ts.u.cl->backend_decl = |
d1b1479f | 1535 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
a4731200 | 1536 | } |
ddcfeaf1 | 1537 | } |
d1b1479f | 1538 | /* For all other parameters make sure, that they are copied so |
1539 | that the value and any modifications are local to the routine | |
1540 | by generating a temporary variable. */ | |
1541 | else if (sym->attr.function | |
1542 | && sym->ts.u.cl->passed_length == NULL | |
1543 | && sym->ts.u.cl->backend_decl) | |
1544 | { | |
1545 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1546 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1547 | sym->ts.u.cl->backend_decl | |
1548 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1549 | else | |
a4731200 | 1550 | sym->ts.u.cl->backend_decl = NULL_TREE; |
d1b1479f | 1551 | } |
617125a6 | 1552 | } |
1553 | ||
eeebe20b | 1554 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1555 | length = gfc_create_string_length (sym); |
1556 | else | |
eeebe20b | 1557 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 1558 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1559 | { |
d95efb59 | 1560 | /* Add the string length to the same context as the symbol. */ |
1561 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1562 | gfc_add_decl_to_function (length); | |
1563 | else | |
1564 | gfc_add_decl_to_parent_function (length); | |
1565 | ||
1566 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1567 | DECL_CONTEXT (length)); | |
1568 | ||
d4163395 | 1569 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1570 | } |
4ee9c684 | 1571 | } |
1572 | ||
1573 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1574 | if ((sym->attr.dimension || sym->attr.codimension) |
1575 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1576 | { |
d95efb59 | 1577 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1578 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1579 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1580 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1581 | sym->backend_decl = decl; | |
4ee9c684 | 1582 | } |
1583 | ||
c6793847 | 1584 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1585 | some caller is expecting an expression to apply the component refs to. | |
1586 | Therefore the descriptor is only created and stored in | |
1587 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1588 | responsible to extract it from there, when the descriptor is | |
1589 | desired. */ | |
1590 | if (IS_CLASS_ARRAY (sym) | |
1591 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1592 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1593 | { | |
1594 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1595 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1596 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1597 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1598 | sym->backend_decl = decl; | |
1599 | } | |
1600 | ||
4ee9c684 | 1601 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1602 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1603 | { | |
1604 | gfc_add_assign_aux_vars (sym); | |
1605 | } | |
9579733e | 1606 | |
c6793847 | 1607 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
9579733e | 1608 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1609 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1610 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1611 | gfc_nonlocal_dummy_array_decl (sym); | |
1612 | ||
fd23cc08 | 1613 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1614 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1615 | ||
fd23cc08 | 1616 | return sym->backend_decl; |
4ee9c684 | 1617 | } |
1618 | ||
1619 | if (sym->backend_decl) | |
1620 | return sym->backend_decl; | |
1621 | ||
a25debd0 | 1622 | /* Special case for array-valued named constants from intrinsic |
1623 | procedures; those are inlined. */ | |
d566c3e0 | 1624 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1625 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1626 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1627 | intrinsic_array_parameter = true; |
1628 | ||
044bbd71 | 1629 | /* If use associated compilation, use the module |
094bca96 | 1630 | declaration. */ |
044bbd71 | 1631 | if ((sym->attr.flavor == FL_VARIABLE |
1632 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1633 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1634 | && !intrinsic_array_parameter |
1635 | && sym->module | |
1636 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1637 | { |
1638 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1639 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1640 | return sym->backend_decl; | |
1641 | } | |
7ea64434 | 1642 | |
4ee9c684 | 1643 | if (sym->attr.flavor == FL_PROCEDURE) |
1644 | { | |
77d080ca | 1645 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1646 | procedure pointers and procptr initialization targets. */ |
77d080ca | 1647 | if (sym->attr.use_assoc || sym->attr.intrinsic |
1648 | || sym->attr.if_source != IFSRC_DECL) | |
802532b9 | 1649 | { |
1650 | decl = gfc_get_extern_function_decl (sym); | |
1651 | gfc_set_decl_location (decl, &sym->declared_at); | |
1652 | } | |
1653 | else | |
1654 | { | |
1655 | if (!sym->backend_decl) | |
1656 | build_function_decl (sym, false); | |
1657 | decl = sym->backend_decl; | |
1658 | } | |
4ee9c684 | 1659 | return decl; |
1660 | } | |
1661 | ||
1662 | if (sym->attr.intrinsic) | |
382ad5c3 | 1663 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1664 | |
1665 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1666 | type declaration. For associate names, the target character |
1667 | length is used. Set 'length' to a constant so that if the | |
8b7e5587 | 1668 | string length is a variable, it is not finished a second time. */ |
4ee9c684 | 1669 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1670 | { |
1671 | if (sym->attr.associate_var | |
1672 | && sym->ts.u.cl->backend_decl | |
fe732a9b | 1673 | && VAR_P (sym->ts.u.cl->backend_decl)) |
c3639856 | 1674 | length = gfc_index_zero_node; |
1675 | else | |
1676 | length = gfc_create_string_length (sym); | |
1677 | } | |
4ee9c684 | 1678 | |
1679 | /* Create the decl for the variable. */ | |
e60a6f7b | 1680 | decl = build_decl (sym->declared_at.lb->location, |
1681 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1682 | |
1236e28b | 1683 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1684 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1685 | decl_attributes (&decl, attributes, 0); | |
1686 | ||
f888a3fb | 1687 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1688 | This is done here rather than in gfc_finish_var_decl because it |
1689 | is different for string length variables. */ | |
8b7e5587 | 1690 | if (sym->module || sym->fn_result_spec) |
df4d540f | 1691 | { |
1236e28b | 1692 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1693 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1694 | DECL_IGNORED_P (decl) = 1; |
1695 | } | |
4ee9c684 | 1696 | |
bc5663df | 1697 | if (sym->attr.select_type_temporary) |
1698 | { | |
1699 | DECL_ARTIFICIAL (decl) = 1; | |
1700 | DECL_IGNORED_P (decl) = 1; | |
1701 | } | |
1702 | ||
7a777e43 | 1703 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1704 | { |
1705 | /* Create variables to hold the non-constant bits of array info. */ | |
1706 | gfc_build_qualified_array (decl, sym); | |
1707 | ||
b3c3927c | 1708 | if (sym->attr.contiguous |
1709 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1710 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1711 | } | |
1712 | ||
0a96a7cc | 1713 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1714 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1715 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1716 | (CLASS_DATA (sym)->attr.dimension |
1717 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1718 | || (sym->ts.type == BT_DERIVED |
1719 | && (sym->ts.u.derived->attr.alloc_comp | |
1720 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1721 | && !sym->ns->proc_name->attr.is_main_program | |
1722 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1723 | /* This applies a derived type default initializer. */ |
1724 | || (sym->ts.type == BT_DERIVED | |
1725 | && sym->attr.save == SAVE_NONE | |
1726 | && !sym->attr.data | |
1727 | && !sym->attr.allocatable | |
1728 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1729 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1730 | gfc_defer_symbol_init (sym); |
2294b616 | 1731 | |
4d8caf18 | 1732 | /* Associate names can use the hidden string length variable |
1733 | of their associated target. */ | |
1734 | if (sym->ts.type == BT_CHARACTER | |
1735 | && TREE_CODE (length) != INTEGER_CST) | |
1736 | { | |
1737 | gfc_finish_var_decl (length, sym); | |
1738 | gcc_assert (!sym->value); | |
1739 | } | |
1740 | ||
4ee9c684 | 1741 | gfc_finish_var_decl (decl, sym); |
1742 | ||
bda1f152 | 1743 | if (sym->ts.type == BT_CHARACTER) |
4d8caf18 | 1744 | /* Character variables need special handling. */ |
1745 | gfc_allocate_lang_decl (decl); | |
1033248c | 1746 | else if (sym->attr.subref_array_pointer) |
4d8caf18 | 1747 | /* We need the span for these beasts. */ |
1748 | gfc_allocate_lang_decl (decl); | |
1033248c | 1749 | |
1750 | if (sym->attr.subref_array_pointer) | |
1751 | { | |
1752 | tree span; | |
1753 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1754 | span = build_decl (input_location, |
1755 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1756 | gfc_array_index_type); |
1757 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1758 | TREE_STATIC (span) = TREE_STATIC (decl); |
1759 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1760 | |
1761 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1762 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1763 | } |
1764 | ||
fd23cc08 | 1765 | if (sym->ts.type == BT_CLASS) |
1766 | GFC_DECL_CLASS(decl) = 1; | |
1767 | ||
4ee9c684 | 1768 | sym->backend_decl = decl; |
1769 | ||
c8f1568f | 1770 | if (sym->attr.assign) |
21ebda4d | 1771 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1772 | |
cd2c99b8 | 1773 | if (intrinsic_array_parameter) |
1774 | { | |
1775 | TREE_STATIC (decl) = 1; | |
1776 | DECL_EXTERNAL (decl) = 0; | |
1777 | } | |
1778 | ||
1779 | if (TREE_STATIC (decl) | |
1780 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1781 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
14eab729 | 1782 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
a961ca30 | 1783 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1784 | && (flag_coarray != GFC_FCOARRAY_LIB |
0d3bb1de | 1785 | || !sym->attr.codimension || sym->attr.allocatable)) |
a545a8f8 | 1786 | { |
1787 | /* Add static initializer. For procedures, it is only needed if | |
1788 | SAVE is specified otherwise they need to be reinitialized | |
1789 | every time the procedure is entered. The TREE_STATIC is | |
1790 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1791 | |
bda1f152 | 1792 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1793 | TREE_TYPE (decl), sym->attr.dimension |
1794 | || (sym->attr.codimension | |
1795 | && sym->attr.allocatable), | |
1796 | sym->attr.pointer || sym->attr.allocatable | |
1797 | || sym->ts.type == BT_CLASS, | |
1798 | sym->attr.proc_pointer); | |
bda1f152 | 1799 | } |
1800 | ||
9579733e | 1801 | if (!TREE_STATIC (decl) |
1802 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1803 | && !sym->attr.pointer | |
1804 | && !sym->attr.allocatable | |
bc5663df | 1805 | && !sym->attr.proc_pointer |
1806 | && !sym->attr.select_type_temporary) | |
9579733e | 1807 | DECL_BY_REFERENCE (decl) = 1; |
1808 | ||
cf5f881f | 1809 | if (sym->attr.associate_var) |
1810 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1811 | ||
ebad7c3e | 1812 | if (sym->attr.vtab |
1813 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1814 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1815 | |
4ee9c684 | 1816 | return decl; |
1817 | } | |
1818 | ||
1819 | ||
dbe60343 | 1820 | /* Substitute a temporary variable in place of the real one. */ |
1821 | ||
1822 | void | |
1823 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1824 | { | |
1825 | save->attr = sym->attr; | |
1826 | save->decl = sym->backend_decl; | |
1827 | ||
1828 | gfc_clear_attr (&sym->attr); | |
1829 | sym->attr.referenced = 1; | |
1830 | sym->attr.flavor = FL_VARIABLE; | |
1831 | ||
1832 | sym->backend_decl = decl; | |
1833 | } | |
1834 | ||
1835 | ||
1836 | /* Restore the original variable. */ | |
1837 | ||
1838 | void | |
1839 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1840 | { | |
1841 | sym->attr = save->attr; | |
1842 | sym->backend_decl = save->decl; | |
1843 | } | |
1844 | ||
1845 | ||
cad0ddcf | 1846 | /* Declare a procedure pointer. */ |
1847 | ||
1848 | static tree | |
1849 | get_proc_pointer_decl (gfc_symbol *sym) | |
1850 | { | |
1851 | tree decl; | |
36b0a1b0 | 1852 | tree attributes; |
cad0ddcf | 1853 | |
1854 | decl = sym->backend_decl; | |
1855 | if (decl) | |
1856 | return decl; | |
1857 | ||
e60a6f7b | 1858 | decl = build_decl (input_location, |
1859 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1860 | build_pointer_type (gfc_get_function_type (sym))); |
1861 | ||
ea6f8461 | 1862 | if (sym->module) |
1863 | { | |
1864 | /* Apply name mangling. */ | |
1865 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1866 | if (sym->attr.use_assoc) | |
1867 | DECL_IGNORED_P (decl) = 1; | |
1868 | } | |
a90fe829 | 1869 | |
e72f979a | 1870 | if ((sym->ns->proc_name |
1871 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1872 | || sym->attr.contained) |
1873 | gfc_add_decl_to_function (decl); | |
cf269acc | 1874 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1875 | gfc_add_decl_to_parent_function (decl); |
1876 | ||
1877 | sym->backend_decl = decl; | |
1878 | ||
cf269acc | 1879 | /* If a variable is USE associated, it's always external. */ |
1880 | if (sym->attr.use_assoc) | |
1881 | { | |
1882 | DECL_EXTERNAL (decl) = 1; | |
1883 | TREE_PUBLIC (decl) = 1; | |
1884 | } | |
1885 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1886 | { | |
1887 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1888 | TREE_PUBLIC (decl) = 1; |
1889 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1890 | { | |
1891 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1892 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1893 | } | |
cf269acc | 1894 | TREE_STATIC (decl) = 1; |
1895 | } | |
1896 | ||
cad0ddcf | 1897 | if (!sym->attr.use_assoc |
1898 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1899 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1900 | TREE_STATIC (decl) = 1; | |
1901 | ||
1902 | if (TREE_STATIC (decl) && sym->value) | |
1903 | { | |
1904 | /* Add static initializer. */ | |
1905 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1906 | TREE_TYPE (decl), |
1907 | sym->attr.dimension, | |
1908 | false, true); | |
cad0ddcf | 1909 | } |
1910 | ||
8fb1768c | 1911 | /* Handle threadprivate procedure pointers. */ |
1912 | if (sym->attr.threadprivate | |
1913 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1914 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1915 | |
36b0a1b0 | 1916 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1917 | decl_attributes (&decl, attributes, 0); | |
1918 | ||
cad0ddcf | 1919 | return decl; |
1920 | } | |
1921 | ||
1922 | ||
4ee9c684 | 1923 | /* Get a basic decl for an external function. */ |
1924 | ||
1925 | tree | |
1926 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1927 | { | |
1928 | tree type; | |
1929 | tree fndecl; | |
36b0a1b0 | 1930 | tree attributes; |
4ee9c684 | 1931 | gfc_expr e; |
1932 | gfc_intrinsic_sym *isym; | |
1933 | gfc_expr argexpr; | |
17000b91 | 1934 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1935 | tree name; |
1936 | tree mangled_name; | |
83aeedb9 | 1937 | gfc_gsymbol *gsym; |
4ee9c684 | 1938 | |
1939 | if (sym->backend_decl) | |
1940 | return sym->backend_decl; | |
1941 | ||
1b716045 | 1942 | /* We should never be creating external decls for alternate entry points. |
1943 | The procedure may be an alternate entry point, but we don't want/need | |
1944 | to know that. */ | |
22d678e8 | 1945 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1946 | |
cad0ddcf | 1947 | if (sym->attr.proc_pointer) |
1948 | return get_proc_pointer_decl (sym); | |
1949 | ||
83aeedb9 | 1950 | /* See if this is an external procedure from the same file. If so, |
1951 | return the backend_decl. */ | |
da5c730d | 1952 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1953 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1954 | |
c8b913ab | 1955 | if (gsym && !gsym->defined) |
1956 | gsym = NULL; | |
1957 | ||
1958 | /* This can happen because of C binding. */ | |
1959 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1960 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1961 | goto module_sym; | |
1962 | ||
044bbd71 | 1963 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1964 | && !sym->backend_decl | |
1965 | && gsym && gsym->ns | |
1966 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1967 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1968 | { |
d896f9b3 | 1969 | if (!gsym->ns->proc_name->backend_decl) |
1970 | { | |
1971 | /* By construction, the external function cannot be | |
1972 | a contained procedure. */ | |
1973 | locus old_loc; | |
d896f9b3 | 1974 | |
4671339c | 1975 | gfc_save_backend_locus (&old_loc); |
9078126c | 1976 | push_cfun (NULL); |
d896f9b3 | 1977 | |
1978 | gfc_create_function_decl (gsym->ns, true); | |
1979 | ||
1980 | pop_cfun (); | |
4671339c | 1981 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1982 | } |
1983 | ||
83aeedb9 | 1984 | /* If the namespace has entries, the proc_name is the |
1985 | entry master. Find the entry and use its backend_decl. | |
1986 | otherwise, use the proc_name backend_decl. */ | |
1987 | if (gsym->ns->entries) | |
1988 | { | |
1989 | gfc_entry_list *entry = gsym->ns->entries; | |
1990 | ||
1991 | for (; entry; entry = entry->next) | |
1992 | { | |
1993 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1994 | { | |
1995 | sym->backend_decl = entry->sym->backend_decl; | |
1996 | break; | |
1997 | } | |
1998 | } | |
1999 | } | |
2000 | else | |
40c74b02 | 2001 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 2002 | |
2003 | if (sym->backend_decl) | |
40c74b02 | 2004 | { |
2005 | /* Avoid problems of double deallocation of the backend declaration | |
2006 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2007 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2008 | sym->attr.use_assoc = 0; | |
2009 | ||
2010 | return sym->backend_decl; | |
2011 | } | |
83aeedb9 | 2012 | } |
2013 | ||
7ea64434 | 2014 | /* See if this is a module procedure from the same file. If so, |
2015 | return the backend_decl. */ | |
2016 | if (sym->module) | |
2017 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2018 | ||
c8b913ab | 2019 | module_sym: |
2020 | if (gsym && gsym->ns | |
2021 | && (gsym->type == GSYM_MODULE | |
2022 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 2023 | { |
2024 | gfc_symbol *s; | |
2025 | ||
2026 | s = NULL; | |
c8b913ab | 2027 | if (gsym->type == GSYM_MODULE) |
2028 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2029 | else | |
2030 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2031 | ||
7ea64434 | 2032 | if (s && s->backend_decl) |
2033 | { | |
85ec2f13 | 2034 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2035 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2036 | true); | |
2037 | else if (sym->ts.type == BT_CHARACTER) | |
2038 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 2039 | sym->backend_decl = s->backend_decl; |
2040 | return sym->backend_decl; | |
2041 | } | |
2042 | } | |
2043 | ||
4ee9c684 | 2044 | if (sym->attr.intrinsic) |
2045 | { | |
2046 | /* Call the resolution function to get the actual name. This is | |
2047 | a nasty hack which relies on the resolution functions only looking | |
2048 | at the first argument. We pass NULL for the second argument | |
2049 | otherwise things like AINT get confused. */ | |
2050 | isym = gfc_find_function (sym->name); | |
22d678e8 | 2051 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 2052 | |
2053 | memset (&e, 0, sizeof (e)); | |
2054 | e.expr_type = EXPR_FUNCTION; | |
2055 | ||
2056 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 2057 | gcc_assert (isym->formal); |
4ee9c684 | 2058 | argexpr.ts = isym->formal->ts; |
2059 | ||
2060 | if (isym->formal->next == NULL) | |
2061 | isym->resolve.f1 (&e, &argexpr); | |
2062 | else | |
2063 | { | |
37e0271a | 2064 | if (isym->formal->next->next == NULL) |
2065 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2066 | else | |
2067 | { | |
7fe55cc9 | 2068 | if (isym->formal->next->next->next == NULL) |
2069 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2070 | else | |
2071 | { | |
2072 | /* All specific intrinsics take less than 5 arguments. */ | |
2073 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2074 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2075 | } | |
37e0271a | 2076 | } |
4ee9c684 | 2077 | } |
bdaed7d2 | 2078 | |
829d7a08 | 2079 | if (flag_f2c |
bdaed7d2 | 2080 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2081 | || e.ts.type == BT_COMPLEX)) | |
2082 | { | |
2083 | /* Specific which needs a different implementation if f2c | |
2084 | calling conventions are used. */ | |
17000b91 | 2085 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 2086 | } |
2087 | else | |
17000b91 | 2088 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 2089 | |
4ee9c684 | 2090 | name = get_identifier (s); |
2091 | mangled_name = name; | |
2092 | } | |
2093 | else | |
2094 | { | |
2095 | name = gfc_sym_identifier (sym); | |
2096 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2097 | } | |
2098 | ||
2099 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2100 | fndecl = build_decl (input_location, |
2101 | FUNCTION_DECL, name, type); | |
4ee9c684 | 2102 | |
e27454ee | 2103 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2104 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2105 | the opposite of declaring a function as static in C). */ |
e27454ee | 2106 | DECL_EXTERNAL (fndecl) = 1; |
2107 | TREE_PUBLIC (fndecl) = 1; | |
2108 | ||
1236e28b | 2109 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2110 | decl_attributes (&fndecl, attributes, 0); | |
2111 | ||
2112 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2113 | |
2114 | /* Set the context of this decl. */ | |
2115 | if (0 && sym->ns && sym->ns->proc_name) | |
2116 | { | |
2117 | /* TODO: Add external decls to the appropriate scope. */ | |
2118 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2119 | } | |
2120 | else | |
2121 | { | |
f888a3fb | 2122 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2123 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2124 | } | |
2125 | ||
4ee9c684 | 2126 | /* Set attributes for PURE functions. A call to PURE function in the |
2127 | Fortran 95 sense is both pure and without side effects in the C | |
2128 | sense. */ | |
bead0399 | 2129 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2130 | { |
4d4b9f0e | 2131 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2132 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2133 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2134 | parameters and don't use alternate returns (is this | |
2135 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2136 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2137 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2138 | } |
2139 | ||
6e27d773 | 2140 | /* Mark non-returning functions. */ |
2141 | if (sym->attr.noreturn) | |
2142 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2143 | ||
4ee9c684 | 2144 | sym->backend_decl = fndecl; |
2145 | ||
2146 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2147 | pushdecl_top_level (fndecl); | |
2148 | ||
15b28553 | 2149 | if (sym->formal_ns |
2150 | && sym->formal_ns->proc_name == sym | |
2151 | && sym->formal_ns->omp_declare_simd) | |
2152 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2153 | ||
4ee9c684 | 2154 | return fndecl; |
2155 | } | |
2156 | ||
2157 | ||
2158 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2159 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2160 | a master function with alternate entry points. */ | |
4ee9c684 | 2161 | |
1b716045 | 2162 | static void |
d896f9b3 | 2163 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2164 | { |
36b0a1b0 | 2165 | tree fndecl, type, attributes; |
4ee9c684 | 2166 | symbol_attribute attr; |
1b716045 | 2167 | tree result_decl; |
4ee9c684 | 2168 | gfc_formal_arglist *f; |
2169 | ||
76e207a9 | 2170 | bool module_procedure = sym->attr.module_procedure |
2171 | && sym->ns | |
2172 | && sym->ns->proc_name | |
2173 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2174 | ||
2175 | gcc_assert (!sym->attr.external || module_procedure); | |
4ee9c684 | 2176 | |
802532b9 | 2177 | if (sym->backend_decl) |
2178 | return; | |
2179 | ||
b31f705b | 2180 | /* Set the line and filename. sym->declared_at seems to point to the |
2181 | last statement for subroutines, but it'll do for now. */ | |
2182 | gfc_set_backend_locus (&sym->declared_at); | |
2183 | ||
4ee9c684 | 2184 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2185 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2186 | || DECL_FILE_SCOPE_P (current_function_decl) |
2187 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2188 | == NAMESPACE_DECL)); | |
4ee9c684 | 2189 | |
2190 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2191 | fndecl = build_decl (input_location, |
2192 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2193 | |
1236e28b | 2194 | attr = sym->attr; |
2195 | ||
e27454ee | 2196 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2197 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2198 | the opposite of declaring a function as static in C). */ |
e27454ee | 2199 | DECL_EXTERNAL (fndecl) = 0; |
2200 | ||
7d6b5754 | 2201 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2202 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2203 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2204 | && flag_module_private))) |
7d6b5754 | 2205 | sym->attr.access = ACCESS_PRIVATE; |
2206 | ||
e27454ee | 2207 | if (!current_function_decl |
c5cb468c | 2208 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2209 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2210 | || sym->attr.public_used)) | |
e27454ee | 2211 | TREE_PUBLIC (fndecl) = 1; |
2212 | ||
9e45357a | 2213 | if (sym->attr.referenced || sym->attr.entry_master) |
2214 | TREE_USED (fndecl) = 1; | |
2215 | ||
1236e28b | 2216 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2217 | decl_attributes (&fndecl, attributes, 0); | |
2218 | ||
4ee9c684 | 2219 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2220 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2221 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2222 | result_decl = NULL_TREE; |
2223 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2224 | if (attr.function) | |
2225 | { | |
2226 | if (gfc_return_by_reference (sym)) | |
2227 | type = void_type_node; | |
2228 | else | |
2229 | { | |
2230 | if (sym->result != sym) | |
2231 | result_decl = gfc_sym_identifier (sym->result); | |
2232 | ||
2233 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2234 | } | |
2235 | } | |
2236 | else | |
2237 | { | |
2238 | /* Look for alternate return placeholders. */ | |
2239 | int has_alternate_returns = 0; | |
6777213b | 2240 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2241 | { |
2242 | if (f->sym == NULL) | |
2243 | { | |
2244 | has_alternate_returns = 1; | |
2245 | break; | |
2246 | } | |
2247 | } | |
2248 | ||
2249 | if (has_alternate_returns) | |
2250 | type = integer_type_node; | |
2251 | else | |
2252 | type = void_type_node; | |
2253 | } | |
2254 | ||
e60a6f7b | 2255 | result_decl = build_decl (input_location, |
2256 | RESULT_DECL, result_decl, type); | |
540edea7 | 2257 | DECL_ARTIFICIAL (result_decl) = 1; |
2258 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2259 | DECL_CONTEXT (result_decl) = fndecl; |
2260 | DECL_RESULT (fndecl) = result_decl; | |
2261 | ||
2262 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2263 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2264 | |
4ee9c684 | 2265 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2266 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2267 | |
f888a3fb | 2268 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2269 | Fortran 95 sense is both pure and without side effects in the C |
2270 | sense. */ | |
bead0399 | 2271 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2272 | { |
be393645 | 2273 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2274 | including an alternate return. In that case it can also be |
231e961a | 2275 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2276 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2277 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2278 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2279 | } | |
2280 | ||
36b0a1b0 | 2281 | |
4ee9c684 | 2282 | /* Layout the function declaration and put it in the binding level |
2283 | of the current function. */ | |
d896f9b3 | 2284 | |
4c197fd0 | 2285 | if (global) |
d896f9b3 | 2286 | pushdecl_top_level (fndecl); |
2287 | else | |
2288 | pushdecl (fndecl); | |
1b716045 | 2289 | |
16a40513 | 2290 | /* Perform name mangling if this is a top level or module procedure. */ |
2291 | if (current_function_decl == NULL_TREE) | |
2292 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2293 | ||
1b716045 | 2294 | sym->backend_decl = fndecl; |
2295 | } | |
2296 | ||
2297 | ||
2298 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2299 | ||
2300 | static void | |
2301 | create_function_arglist (gfc_symbol * sym) | |
2302 | { | |
2303 | tree fndecl; | |
2304 | gfc_formal_arglist *f; | |
d4163395 | 2305 | tree typelist, hidden_typelist; |
2306 | tree arglist, hidden_arglist; | |
1b716045 | 2307 | tree type; |
2308 | tree parm; | |
2309 | ||
2310 | fndecl = sym->backend_decl; | |
2311 | ||
e4b2c26c | 2312 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2313 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2314 | arglist = NULL_TREE; |
d4163395 | 2315 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2316 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2317 | |
2318 | if (sym->attr.entry_master) | |
2319 | { | |
2320 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2321 | parm = build_decl (input_location, |
2322 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2323 | |
1b716045 | 2324 | DECL_CONTEXT (parm) = fndecl; |
2325 | DECL_ARG_TYPE (parm) = type; | |
2326 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2327 | gfc_finish_decl (parm); |
d95efb59 | 2328 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2329 | |
2330 | arglist = chainon (arglist, parm); | |
2331 | typelist = TREE_CHAIN (typelist); | |
2332 | } | |
2333 | ||
e4b2c26c | 2334 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2335 | { |
d4163395 | 2336 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2337 | |
e4b2c26c | 2338 | if (sym->ts.type == BT_CHARACTER) |
2339 | { | |
e4b2c26c | 2340 | /* Length of character result. */ |
d4163395 | 2341 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2342 | |
e60a6f7b | 2343 | length = build_decl (input_location, |
2344 | PARM_DECL, | |
e4b2c26c | 2345 | get_identifier (".__result"), |
d4163395 | 2346 | len_type); |
b345a09f | 2347 | if (POINTER_TYPE_P (len_type)) |
2348 | { | |
2349 | sym->ts.u.cl->passed_length = length; | |
2350 | TREE_USED (length) = 1; | |
2351 | } | |
2352 | else if (!sym->ts.u.cl->length) | |
e4b2c26c | 2353 | { |
eeebe20b | 2354 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2355 | TREE_USED (length) = 1; |
4ee9c684 | 2356 | } |
22d678e8 | 2357 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2358 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2359 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2360 | TREE_READONLY (length) = 1; |
b5b40b3f | 2361 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2362 | gfc_finish_decl (length); |
eeebe20b | 2363 | if (sym->ts.u.cl->backend_decl == NULL |
2364 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2365 | { |
2366 | gfc_symbol *arg; | |
2367 | tree backend_decl; | |
4ee9c684 | 2368 | |
eeebe20b | 2369 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2370 | { |
e60a6f7b | 2371 | tree len = build_decl (input_location, |
2372 | VAR_DECL, | |
d4163395 | 2373 | get_identifier ("..__result"), |
2374 | gfc_charlen_type_node); | |
2375 | DECL_ARTIFICIAL (len) = 1; | |
2376 | TREE_USED (len) = 1; | |
eeebe20b | 2377 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2378 | } |
4ee9c684 | 2379 | |
d4163395 | 2380 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2381 | arg = sym->result ? sym->result : sym; | |
2382 | backend_decl = arg->backend_decl; | |
2383 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2384 | type. */ | |
2385 | arg->backend_decl = NULL; | |
2386 | type = gfc_sym_type (arg); | |
2387 | arg->backend_decl = backend_decl; | |
2388 | type = build_reference_type (type); | |
2389 | } | |
2390 | } | |
4ee9c684 | 2391 | |
e60a6f7b | 2392 | parm = build_decl (input_location, |
2393 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2394 | |
d4163395 | 2395 | DECL_CONTEXT (parm) = fndecl; |
2396 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2397 | TREE_READONLY (parm) = 1; | |
2398 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2399 | gfc_finish_decl (parm); |
4ee9c684 | 2400 | |
d4163395 | 2401 | arglist = chainon (arglist, parm); |
2402 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2403 | |
d4163395 | 2404 | if (sym->ts.type == BT_CHARACTER) |
2405 | { | |
2406 | gfc_allocate_lang_decl (parm); | |
2407 | arglist = chainon (arglist, length); | |
e4b2c26c | 2408 | typelist = TREE_CHAIN (typelist); |
2409 | } | |
2410 | } | |
4ee9c684 | 2411 | |
d4163395 | 2412 | hidden_typelist = typelist; |
6777213b | 2413 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2414 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2415 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2416 | ||
6777213b | 2417 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2418 | { |
2419 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2420 | |
e4b2c26c | 2421 | /* Ignore alternate returns. */ |
2422 | if (f->sym == NULL) | |
2423 | continue; | |
4ee9c684 | 2424 | |
e4b2c26c | 2425 | type = TREE_VALUE (typelist); |
4ee9c684 | 2426 | |
296db1d1 | 2427 | if (f->sym->ts.type == BT_CHARACTER |
2428 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2429 | { |
2430 | tree len_type = TREE_VALUE (hidden_typelist); | |
2431 | tree length = NULL_TREE; | |
617125a6 | 2432 | if (!f->sym->ts.deferred) |
2433 | gcc_assert (len_type == gfc_charlen_type_node); | |
2434 | else | |
2435 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2436 | |
2437 | strcpy (&name[1], f->sym->name); | |
2438 | name[0] = '_'; | |
e60a6f7b | 2439 | length = build_decl (input_location, |
2440 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2441 | |
d4163395 | 2442 | hidden_arglist = chainon (hidden_arglist, length); |
2443 | DECL_CONTEXT (length) = fndecl; | |
2444 | DECL_ARTIFICIAL (length) = 1; | |
2445 | DECL_ARG_TYPE (length) = len_type; | |
2446 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2447 | gfc_finish_decl (length); |
4ee9c684 | 2448 | |
a4abf8a0 | 2449 | /* Remember the passed value. */ |
a90fe829 | 2450 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2451 | { |
2452 | /* This can happen if the same type is used for multiple | |
2453 | arguments. We need to copy cl as otherwise | |
2454 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2455 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2456 | } |
eeebe20b | 2457 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2458 | |
d4163395 | 2459 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2460 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2461 | { |
d4163395 | 2462 | TREE_USED (length) = 1; |
eeebe20b | 2463 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2464 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2465 | } |
2466 | ||
2467 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2468 | ||
eeebe20b | 2469 | if (f->sym->ts.u.cl->backend_decl == NULL |
2470 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2471 | { |
ddcfeaf1 | 2472 | if (POINTER_TYPE_P (len_type)) |
2473 | f->sym->ts.u.cl->backend_decl = | |
2474 | build_fold_indirect_ref_loc (input_location, length); | |
2475 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2476 | gfc_create_string_length (f->sym); |
2477 | ||
2478 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2479 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2480 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2481 | else | |
2482 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2483 | } |
4ee9c684 | 2484 | } |
532c2d79 | 2485 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2486 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2487 | Thus, we will use a hidden argument in that case. */ |
2488 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2489 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
d7cd448a | 2490 | && !gfc_bt_struct (f->sym->ts.type)) |
532c2d79 | 2491 | { |
2492 | tree tmp; | |
2493 | strcpy (&name[1], f->sym->name); | |
2494 | name[0] = '_'; | |
2495 | tmp = build_decl (input_location, | |
2496 | PARM_DECL, get_identifier (name), | |
2497 | boolean_type_node); | |
2498 | ||
2499 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2500 | DECL_CONTEXT (tmp) = fndecl; | |
2501 | DECL_ARTIFICIAL (tmp) = 1; | |
2502 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2503 | TREE_READONLY (tmp) = 1; | |
2504 | gfc_finish_decl (tmp); | |
2505 | } | |
4ee9c684 | 2506 | |
d4163395 | 2507 | /* For non-constant length array arguments, make sure they use |
2508 | a different type node from TYPE_ARG_TYPES type. */ | |
2509 | if (f->sym->attr.dimension | |
2510 | && type == TREE_VALUE (typelist) | |
2511 | && TREE_CODE (type) == POINTER_TYPE | |
2512 | && GFC_ARRAY_TYPE_P (type) | |
2513 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2514 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2515 | { | |
2516 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2517 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2518 | else | |
2519 | type = gfc_sym_type (f->sym); | |
2520 | } | |
2521 | ||
cad0ddcf | 2522 | if (f->sym->attr.proc_pointer) |
2523 | type = build_pointer_type (type); | |
2524 | ||
2364aa60 | 2525 | if (f->sym->attr.volatile_) |
2526 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2527 | ||
69b1505f | 2528 | /* Build the argument declaration. */ |
e60a6f7b | 2529 | parm = build_decl (input_location, |
2530 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2531 | |
2364aa60 | 2532 | if (f->sym->attr.volatile_) |
2533 | { | |
2534 | TREE_THIS_VOLATILE (parm) = 1; | |
2535 | TREE_SIDE_EFFECTS (parm) = 1; | |
2536 | } | |
2537 | ||
d4163395 | 2538 | /* Fill in arg stuff. */ |
2539 | DECL_CONTEXT (parm) = fndecl; | |
2540 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2541 | /* All implementation args except for VALUE are read-only. */ |
2542 | if (!f->sym->attr.value) | |
2543 | TREE_READONLY (parm) = 1; | |
98923a84 | 2544 | if (POINTER_TYPE_P (type) |
2545 | && (!f->sym->attr.proc_pointer | |
2546 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2547 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2548 | |
b9c7fce7 | 2549 | gfc_finish_decl (parm); |
cf5f881f | 2550 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2551 | |
2552 | f->sym->backend_decl = parm; | |
2553 | ||
7dce33fe | 2554 | /* Coarrays which are descriptorless or assumed-shape pass with |
2555 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2556 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2557 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2558 | && !f->sym->attr.allocatable) | |
2559 | || (f->sym->ts.type == BT_CLASS | |
2560 | && CLASS_DATA (f->sym)->attr.codimension | |
2561 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2562 | { |
2563 | tree caf_type; | |
2564 | tree token; | |
2565 | tree offset; | |
2566 | ||
2567 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2568 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2569 | caf_type = f->sym->ts.type == BT_CLASS |
2570 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2571 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2572 | |
85c94a64 | 2573 | token = build_decl (input_location, PARM_DECL, |
2574 | create_tmp_var_name ("caf_token"), | |
2575 | build_qualified_type (pvoid_type_node, | |
2576 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2577 | if ((f->sym->ts.type != BT_CLASS |
2578 | && f->sym->as->type != AS_DEFERRED) | |
2579 | || (f->sym->ts.type == BT_CLASS | |
2580 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2581 | { |
2582 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2583 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2584 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2585 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2586 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2587 | } | |
2588 | else | |
2589 | { | |
2590 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2591 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2592 | } | |
a90fe829 | 2593 | |
85c94a64 | 2594 | DECL_CONTEXT (token) = fndecl; |
2595 | DECL_ARTIFICIAL (token) = 1; | |
2596 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2597 | TREE_READONLY (token) = 1; | |
2598 | hidden_arglist = chainon (hidden_arglist, token); | |
2599 | gfc_finish_decl (token); | |
2600 | ||
85c94a64 | 2601 | offset = build_decl (input_location, PARM_DECL, |
2602 | create_tmp_var_name ("caf_offset"), | |
2603 | gfc_array_index_type); | |
2604 | ||
d44f2f7c | 2605 | if ((f->sym->ts.type != BT_CLASS |
2606 | && f->sym->as->type != AS_DEFERRED) | |
2607 | || (f->sym->ts.type == BT_CLASS | |
2608 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2609 | { |
2610 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2611 | == NULL_TREE); | |
2612 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2613 | } | |
2614 | else | |
2615 | { | |
2616 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2617 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2618 | } | |
85c94a64 | 2619 | DECL_CONTEXT (offset) = fndecl; |
2620 | DECL_ARTIFICIAL (offset) = 1; | |
2621 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2622 | TREE_READONLY (offset) = 1; | |
2623 | hidden_arglist = chainon (hidden_arglist, offset); | |
2624 | gfc_finish_decl (offset); | |
2625 | } | |
2626 | ||
d4163395 | 2627 | arglist = chainon (arglist, parm); |
e4b2c26c | 2628 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2629 | } |
e4b2c26c | 2630 | |
465e4a95 | 2631 | /* Add the hidden string length parameters, unless the procedure |
2632 | is bind(C). */ | |
2633 | if (!sym->attr.is_bind_c) | |
2634 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2635 | |
ebe27ea2 | 2636 | gcc_assert (hidden_typelist == NULL_TREE |
2637 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2638 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2639 | } |
e4b2c26c | 2640 | |
1b716045 | 2641 | /* Do the setup necessary before generating the body of a function. */ |
2642 | ||
2643 | static void | |
2644 | trans_function_start (gfc_symbol * sym) | |
2645 | { | |
2646 | tree fndecl; | |
2647 | ||
2648 | fndecl = sym->backend_decl; | |
2649 | ||
f888a3fb | 2650 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2651 | current_function_decl = fndecl; |
2652 | ||
f888a3fb | 2653 | /* Let the world know what we're about to do. */ |
1b716045 | 2654 | announce_function (fndecl); |
2655 | ||
16a40513 | 2656 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2657 | { |
f888a3fb | 2658 | /* Create RTL for function declaration. */ |
1b716045 | 2659 | rest_of_decl_compilation (fndecl, 1, 0); |
2660 | } | |
2661 | ||
f888a3fb | 2662 | /* Create RTL for function definition. */ |
1b716045 | 2663 | make_decl_rtl (fndecl); |
2664 | ||
00cf115c | 2665 | allocate_struct_function (fndecl, false); |
1b716045 | 2666 | |
f888a3fb | 2667 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2668 | pushlevel (); |
1b716045 | 2669 | } |
2670 | ||
2671 | /* Create thunks for alternate entry points. */ | |
2672 | ||
2673 | static void | |
d896f9b3 | 2674 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2675 | { |
2676 | gfc_formal_arglist *formal; | |
2677 | gfc_formal_arglist *thunk_formal; | |
2678 | gfc_entry_list *el; | |
2679 | gfc_symbol *thunk_sym; | |
2680 | stmtblock_t body; | |
2681 | tree thunk_fndecl; | |
1b716045 | 2682 | tree tmp; |
b31f705b | 2683 | locus old_loc; |
1b716045 | 2684 | |
2685 | /* This should always be a toplevel function. */ | |
22d678e8 | 2686 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2687 | |
4671339c | 2688 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2689 | for (el = ns->entries; el; el = el->next) |
2690 | { | |
f1f41a6c | 2691 | vec<tree, va_gc> *args = NULL; |
2692 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2693 | |
1b716045 | 2694 | thunk_sym = el->sym; |
a90fe829 | 2695 | |
d896f9b3 | 2696 | build_function_decl (thunk_sym, global); |
1b716045 | 2697 | create_function_arglist (thunk_sym); |
2698 | ||
2699 | trans_function_start (thunk_sym); | |
2700 | ||
2701 | thunk_fndecl = thunk_sym->backend_decl; | |
2702 | ||
e5004242 | 2703 | gfc_init_block (&body); |
1b716045 | 2704 | |
f888a3fb | 2705 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2706 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2707 | vec_safe_push (args, tmp); |
1b716045 | 2708 | |
c6871095 | 2709 | if (thunk_sym->attr.function) |
2710 | { | |
2711 | if (gfc_return_by_reference (ns->proc_name)) | |
2712 | { | |
2713 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2714 | vec_safe_push (args, ref); |
c6871095 | 2715 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2716 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2717 | } |
2718 | } | |
2719 | ||
6777213b | 2720 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2721 | formal = formal->next) | |
1b716045 | 2722 | { |
c6871095 | 2723 | /* Ignore alternate returns. */ |
2724 | if (formal->sym == NULL) | |
2725 | continue; | |
2726 | ||
1b716045 | 2727 | /* We don't have a clever way of identifying arguments, so resort to |
2728 | a brute-force search. */ | |
6777213b | 2729 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2730 | thunk_formal; |
2731 | thunk_formal = thunk_formal->next) | |
2732 | { | |
2733 | if (thunk_formal->sym == formal->sym) | |
2734 | break; | |
2735 | } | |
2736 | ||
2737 | if (thunk_formal) | |
2738 | { | |
2739 | /* Pass the argument. */ | |
d95efb59 | 2740 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2741 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2742 | if (formal->sym->ts.type == BT_CHARACTER) |
2743 | { | |
eeebe20b | 2744 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2745 | vec_safe_push (string_args, tmp); |
1b716045 | 2746 | } |
2747 | } | |
2748 | else | |
2749 | { | |
2750 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2751 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2752 | if (formal->sym->ts.type == BT_CHARACTER) |
2753 | { | |
7d3075f6 | 2754 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2755 | vec_safe_push (string_args, tmp); |
1b716045 | 2756 | } |
2757 | } | |
2758 | } | |
2759 | ||
2760 | /* Call the master function. */ | |
f1f41a6c | 2761 | vec_safe_splice (args, string_args); |
1b716045 | 2762 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2763 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2764 | if (ns->proc_name->attr.mixed_entry_master) |
2765 | { | |
2766 | tree union_decl, field; | |
2767 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2768 | ||
e60a6f7b | 2769 | union_decl = build_decl (input_location, |
2770 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2771 | TREE_TYPE (master_type)); |
2772 | DECL_ARTIFICIAL (union_decl) = 1; | |
2773 | DECL_EXTERNAL (union_decl) = 0; | |
2774 | TREE_PUBLIC (union_decl) = 0; | |
2775 | TREE_USED (union_decl) = 1; | |
2776 | layout_decl (union_decl, 0); | |
2777 | pushdecl (union_decl); | |
2778 | ||
2779 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2780 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2781 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2782 | gfc_add_expr_to_block (&body, tmp); |
2783 | ||
2784 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2785 | field; field = DECL_CHAIN (field)) |
c6871095 | 2786 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2787 | thunk_sym->result->name) == 0) | |
2788 | break; | |
2789 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2790 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2791 | TREE_TYPE (field), union_decl, field, | |
2792 | NULL_TREE); | |
a90fe829 | 2793 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2794 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2795 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2796 | tmp = build1_v (RETURN_EXPR, tmp); |
2797 | } | |
2798 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2799 | != void_type_node) | |
2800 | { | |
fd779e1d | 2801 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2802 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2803 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2804 | tmp = build1_v (RETURN_EXPR, tmp); |
2805 | } | |
1b716045 | 2806 | gfc_add_expr_to_block (&body, tmp); |
2807 | ||
2808 | /* Finish off this function and send it for code generation. */ | |
2809 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2810 | tmp = getdecls (); |
cde2be84 | 2811 | poplevel (1, 1); |
1b716045 | 2812 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2813 | DECL_SAVED_TREE (thunk_fndecl) |
2814 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2815 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2816 | |
2817 | /* Output the GENERIC tree. */ | |
2818 | dump_function (TDI_original, thunk_fndecl); | |
2819 | ||
2820 | /* Store the end of the function, so that we get good line number | |
2821 | info for the epilogue. */ | |
2822 | cfun->function_end_locus = input_location; | |
2823 | ||
2824 | /* We're leaving the context of this function, so zap cfun. | |
2825 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2826 | tree_rest_of_compilation. */ | |
87d4aa85 | 2827 | set_cfun (NULL); |
1b716045 | 2828 | |
2829 | current_function_decl = NULL_TREE; | |
2830 | ||
35ee1c66 | 2831 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2832 | |
2833 | /* We share the symbols in the formal argument list with other entry | |
2834 | points and the master function. Clear them so that they are | |
2835 | recreated for each function. */ | |
6777213b | 2836 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2837 | formal = formal->next) | |
c6871095 | 2838 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2839 | { | |
2840 | formal->sym->backend_decl = NULL_TREE; | |
2841 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2842 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2843 | } |
2844 | ||
2845 | if (thunk_sym->attr.function) | |
1b716045 | 2846 | { |
c6871095 | 2847 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2848 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2849 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2850 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2851 | } |
2852 | } | |
b31f705b | 2853 | |
4671339c | 2854 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2855 | } |
2856 | ||
2857 | ||
2858 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2859 | points. If global is true, generate the function in the global binding |
2860 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2861 | |
2862 | void | |
d896f9b3 | 2863 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2864 | { |
2865 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2866 | build_function_decl (ns->proc_name, global); |
1b716045 | 2867 | |
f888a3fb | 2868 | /* Compile the entry thunks. */ |
1b716045 | 2869 | if (ns->entries) |
d896f9b3 | 2870 | build_entry_thunks (ns, global); |
1b716045 | 2871 | |
2872 | /* Now create the read argument list. */ | |
2873 | create_function_arglist (ns->proc_name); | |
15b28553 | 2874 | |
2875 | if (ns->omp_declare_simd) | |
2876 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2877 | } |
2878 | ||
c750cc52 | 2879 | /* Return the decl used to hold the function return value. If |
3350e716 | 2880 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2881 | |
2882 | tree | |
c750cc52 | 2883 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2884 | { |
c750cc52 | 2885 | tree decl; |
2886 | tree length; | |
2887 | tree this_fake_result_decl; | |
2888 | tree this_function_decl; | |
4ee9c684 | 2889 | |
2890 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2891 | ||
c750cc52 | 2892 | if (parent_flag) |
2893 | { | |
2894 | this_fake_result_decl = parent_fake_result_decl; | |
2895 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2896 | } | |
2897 | else | |
2898 | { | |
2899 | this_fake_result_decl = current_fake_result_decl; | |
2900 | this_function_decl = current_function_decl; | |
2901 | } | |
2902 | ||
c6871095 | 2903 | if (sym |
c750cc52 | 2904 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2905 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2906 | && sym != sym->ns->proc_name) |
2907 | { | |
d4163395 | 2908 | tree t = NULL, var; |
c750cc52 | 2909 | if (this_fake_result_decl != NULL) |
2910 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2911 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2912 | break; | |
2913 | if (t) | |
2914 | return TREE_VALUE (t); | |
c750cc52 | 2915 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2916 | ||
2917 | if (parent_flag) | |
2918 | this_fake_result_decl = parent_fake_result_decl; | |
2919 | else | |
2920 | this_fake_result_decl = current_fake_result_decl; | |
2921 | ||
d4163395 | 2922 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2923 | { |
2924 | tree field; | |
2925 | ||
2926 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2927 | field; field = DECL_CHAIN (field)) |
c6871095 | 2928 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2929 | sym->name) == 0) | |
2930 | break; | |
2931 | ||
2932 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2933 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2934 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2935 | } |
c750cc52 | 2936 | |
2937 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2938 | if (parent_flag) | |
2939 | gfc_add_decl_to_parent_function (var); | |
2940 | else | |
2941 | gfc_add_decl_to_function (var); | |
2942 | ||
d4163395 | 2943 | SET_DECL_VALUE_EXPR (var, decl); |
2944 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2945 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2946 | |
2947 | TREE_CHAIN (this_fake_result_decl) | |
2948 | = tree_cons (get_identifier (sym->name), var, | |
2949 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2950 | return var; |
c6871095 | 2951 | } |
2952 | ||
c750cc52 | 2953 | if (this_fake_result_decl != NULL_TREE) |
2954 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2955 | |
2956 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2957 | sym is NULL. */ | |
2958 | if (!sym) | |
2959 | return NULL_TREE; | |
2960 | ||
d4163395 | 2961 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2962 | { |
eeebe20b | 2963 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2964 | length = gfc_create_string_length (sym); |
2965 | else | |
eeebe20b | 2966 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 2967 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
99042714 | 2968 | gfc_add_decl_to_function (length); |
4ee9c684 | 2969 | } |
2970 | ||
2971 | if (gfc_return_by_reference (sym)) | |
2972 | { | |
c750cc52 | 2973 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2974 | |
c750cc52 | 2975 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2976 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2977 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2978 | |
2979 | TREE_USED (decl) = 1; | |
2980 | if (sym->as) | |
2981 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2982 | } | |
2983 | else | |
2984 | { | |
2985 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2986 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2987 | |
3350e716 | 2988 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2989 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2990 | VAR_DECL, get_identifier (name), |
3350e716 | 2991 | gfc_sym_type (sym)); |
2992 | else | |
1e71b314 | 2993 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2994 | VAR_DECL, get_identifier (name), |
3350e716 | 2995 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2996 | DECL_ARTIFICIAL (decl) = 1; |
2997 | DECL_EXTERNAL (decl) = 0; | |
2998 | TREE_PUBLIC (decl) = 0; | |
2999 | TREE_USED (decl) = 1; | |
764f1175 | 3000 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 3001 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 3002 | |
3003 | layout_decl (decl, 0); | |
cf5f881f | 3004 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 3005 | |
c750cc52 | 3006 | if (parent_flag) |
3007 | gfc_add_decl_to_parent_function (decl); | |
3008 | else | |
3009 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 3010 | } |
3011 | ||
c750cc52 | 3012 | if (parent_flag) |
3013 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3014 | else | |
3015 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 3016 | |
3017 | return decl; | |
3018 | } | |
3019 | ||
3020 | ||
3021 | /* Builds a function decl. The remaining parameters are the types of the | |
3022 | function arguments. Negative nargs indicates a varargs function. */ | |
3023 | ||
8ce86007 | 3024 | static tree |
3025 | build_library_function_decl_1 (tree name, const char *spec, | |
3026 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 3027 | { |
f1f41a6c | 3028 | vec<tree, va_gc> *arglist; |
4ee9c684 | 3029 | tree fntype; |
3030 | tree fndecl; | |
4ee9c684 | 3031 | int n; |
3032 | ||
3033 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 3034 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 3035 | |
4ee9c684 | 3036 | /* Create a list of the argument types. */ |
f1f41a6c | 3037 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 3038 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 3039 | { |
5edc3af9 | 3040 | tree argtype = va_arg (p, tree); |
f1f41a6c | 3041 | arglist->quick_push (argtype); |
4ee9c684 | 3042 | } |
3043 | ||
3044 | /* Build the function type and decl. */ | |
5edc3af9 | 3045 | if (nargs >= 0) |
3046 | fntype = build_function_type_vec (rettype, arglist); | |
3047 | else | |
3048 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 3049 | if (spec) |
3050 | { | |
3051 | tree attr_args = build_tree_list (NULL_TREE, | |
3052 | build_string (strlen (spec), spec)); | |
3053 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3054 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3055 | fntype = build_type_attribute_variant (fntype, attrs); | |
3056 | } | |
e60a6f7b | 3057 | fndecl = build_decl (input_location, |
3058 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 3059 | |
3060 | /* Mark this decl as external. */ | |
3061 | DECL_EXTERNAL (fndecl) = 1; | |
3062 | TREE_PUBLIC (fndecl) = 1; | |
3063 | ||
4ee9c684 | 3064 | pushdecl (fndecl); |
3065 | ||
b2c4af5e | 3066 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 3067 | |
3068 | return fndecl; | |
3069 | } | |
3070 | ||
8ce86007 | 3071 | /* Builds a function decl. The remaining parameters are the types of the |
3072 | function arguments. Negative nargs indicates a varargs function. */ | |
3073 | ||
3074 | tree | |
3075 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3076 | { | |
3077 | tree ret; | |
3078 | va_list args; | |
3079 | va_start (args, nargs); | |
3080 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3081 | va_end (args); | |
3082 | return ret; | |
3083 | } | |
3084 | ||
3085 | /* Builds a function decl. The remaining parameters are the types of the | |
3086 | function arguments. Negative nargs indicates a varargs function. | |
3087 | The SPEC parameter specifies the function argument and return type | |
3088 | specification according to the fnspec function type attribute. */ | |
3089 | ||
4bf69bc3 | 3090 | tree |
8ce86007 | 3091 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3092 | tree rettype, int nargs, ...) | |
3093 | { | |
3094 | tree ret; | |
3095 | va_list args; | |
3096 | va_start (args, nargs); | |
3097 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3098 | va_end (args); | |
3099 | return ret; | |
3100 | } | |
3101 | ||
4ee9c684 | 3102 | static void |
3103 | gfc_build_intrinsic_function_decls (void) | |
3104 | { | |
90ba9145 | 3105 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 3106 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3107 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3108 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3109 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3110 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3111 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3112 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3113 | |
4ee9c684 | 3114 | /* String functions. */ |
241ecdc7 | 3115 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3116 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3117 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3118 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3119 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3120 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3121 | |
3122 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3123 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3124 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3125 | gfc_charlen_type_node, pchar1_type_node, | |
3126 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3127 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3128 | |
3129 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3130 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3131 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3132 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3133 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3134 | |
3135 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3136 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3137 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3138 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3139 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3140 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3141 | |
3142 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3143 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3144 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3145 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3146 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3147 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3148 | |
3149 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3150 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3151 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3152 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3153 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3154 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3155 | |
3156 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3157 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3158 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3159 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3160 | pchar1_type_node); | |
3161 | ||
3162 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3163 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3164 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3165 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3166 | integer_type_node); | |
3167 | ||
3168 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3169 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3170 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3171 | pchar1_type_node); | |
bc351485 | 3172 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3173 | |
3174 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3175 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3176 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3177 | pchar1_type_node); | |
bc351485 | 3178 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3179 | |
3180 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3181 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3182 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3183 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3184 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3185 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3186 | |
3187 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3188 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3189 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3190 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3191 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3192 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3193 | |
3194 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3195 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3196 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3197 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3198 | pchar4_type_node); | |
bc351485 | 3199 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3200 | |
3201 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3202 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3203 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3204 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3205 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3206 | |
3207 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3208 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3209 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3210 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3211 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3212 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3213 | |
3214 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3215 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3216 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3217 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3218 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3219 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3220 | |
3221 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3222 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3223 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3224 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3225 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3226 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3227 | |
3228 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3229 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3230 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3231 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3232 | pchar4_type_node); | |
3233 | ||
3234 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3235 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3236 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3237 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3238 | integer_type_node); | |
3239 | ||
3240 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3241 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3242 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3243 | pchar4_type_node); | |
bc351485 | 3244 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3245 | |
3246 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3247 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3248 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3249 | pchar4_type_node); | |
bc351485 | 3250 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3251 | |
3252 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3253 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3254 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3255 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3256 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3257 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3258 | |
3259 | ||
3260 | /* Conversion between character kinds. */ | |
3261 | ||
241ecdc7 | 3262 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3263 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3264 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3265 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3266 | |
241ecdc7 | 3267 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3268 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3269 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3270 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3271 | |
40b806de | 3272 | /* Misc. functions. */ |
5fcc6ec2 | 3273 | |
241ecdc7 | 3274 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3275 | get_identifier (PREFIX("ttynam")), ".W", | |
3276 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3277 | integer_type_node); | |
3278 | ||
3279 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3280 | get_identifier (PREFIX("fdate")), ".W", | |
3281 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3282 | ||
3283 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3284 | get_identifier (PREFIX("ctime")), ".W", | |
3285 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3286 | gfc_int8_type_node); | |
3287 | ||
3288 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3289 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3290 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3291 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3292 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3293 | |
3294 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3295 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3296 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3297 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3298 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3299 | |
3300 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3301 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3302 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3303 | pvoid_type_node); | |
537824d1 | 3304 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3305 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3306 | |
72ce5390 | 3307 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3308 | get_identifier (PREFIX("system_clock_4")), | |
3309 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3310 | gfc_pint4_type_node); | |
3311 | ||
3312 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3313 | get_identifier (PREFIX("system_clock_8")), | |
3314 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3315 | gfc_pint8_type_node); | |
3316 | ||
4ee9c684 | 3317 | /* Power functions. */ |
76834664 | 3318 | { |
920e54ef | 3319 | tree ctype, rtype, itype, jtype; |
3320 | int rkind, ikind, jkind; | |
3321 | #define NIKINDS 3 | |
3322 | #define NRKINDS 4 | |
3323 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3324 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3325 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3326 | ||
3327 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3328 | { |
920e54ef | 3329 | itype = gfc_get_int_type (ikinds[ikind]); |
3330 | ||
3331 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3332 | { | |
3333 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3334 | if (itype && jtype) | |
3335 | { | |
3336 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3337 | ikinds[jkind]); | |
3338 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3339 | gfc_build_library_function_decl (get_identifier (name), | |
3340 | jtype, 2, jtype, itype); | |
2177d98b | 3341 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3342 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3343 | } |
3344 | } | |
3345 | ||
3346 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3347 | { |
920e54ef | 3348 | rtype = gfc_get_real_type (rkinds[rkind]); |
3349 | if (rtype && itype) | |
3350 | { | |
3351 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3352 | ikinds[ikind]); | |
3353 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3354 | gfc_build_library_function_decl (get_identifier (name), | |
3355 | rtype, 2, rtype, itype); | |
2177d98b | 3356 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3357 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3358 | } |
3359 | ||
3360 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3361 | if (ctype && itype) | |
3362 | { | |
3363 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3364 | ikinds[ikind]); | |
3365 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3366 | gfc_build_library_function_decl (get_identifier (name), | |
3367 | ctype, 2,ctype, itype); | |
2177d98b | 3368 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3369 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3370 | } |
76834664 | 3371 | } |
3372 | } | |
920e54ef | 3373 | #undef NIKINDS |
3374 | #undef NRKINDS | |
76834664 | 3375 | } |
3376 | ||
241ecdc7 | 3377 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3378 | get_identifier (PREFIX("ishftc4")), | |
3379 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3380 | gfc_int4_type_node); | |
bc351485 | 3381 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3382 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3383 | |
241ecdc7 | 3384 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3385 | get_identifier (PREFIX("ishftc8")), | |
3386 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3387 | gfc_int4_type_node); | |
bc351485 | 3388 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3389 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3390 | |
920e54ef | 3391 | if (gfc_int16_type_node) |
bc351485 | 3392 | { |
3393 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3394 | get_identifier (PREFIX("ishftc16")), |
3395 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3396 | gfc_int4_type_node); | |
bc351485 | 3397 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3398 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3399 | } | |
920e54ef | 3400 | |
4e8e57b0 | 3401 | /* BLAS functions. */ |
3402 | { | |
36c921b9 | 3403 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3404 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3405 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3406 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3407 | tree pz = build_pointer_type | |
3408 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3409 | ||
3410 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3411 | (get_identifier | |
829d7a08 | 3412 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3413 | void_type_node, 15, pchar_type_node, |
3414 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3415 | ps, pint, ps, ps, pint, integer_type_node, |
3416 | integer_type_node); | |
4e8e57b0 | 3417 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3418 | (get_identifier | |
829d7a08 | 3419 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3420 | void_type_node, 15, pchar_type_node, |
3421 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3422 | pd, pint, pd, pd, pint, integer_type_node, |
3423 | integer_type_node); | |
4e8e57b0 | 3424 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3425 | (get_identifier | |
829d7a08 | 3426 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3427 | void_type_node, 15, pchar_type_node, |
3428 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3429 | pc, pint, pc, pc, pint, integer_type_node, |
3430 | integer_type_node); | |
4e8e57b0 | 3431 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3432 | (get_identifier | |
829d7a08 | 3433 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3434 | void_type_node, 15, pchar_type_node, |
3435 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3436 | pz, pint, pz, pz, pint, integer_type_node, |
3437 | integer_type_node); | |
4e8e57b0 | 3438 | } |
3439 | ||
4ee9c684 | 3440 | /* Other functions. */ |
241ecdc7 | 3441 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3442 | get_identifier (PREFIX("size0")), ".R", | |
3443 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3444 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3445 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3446 | |
3447 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3448 | get_identifier (PREFIX("size1")), ".R", | |
3449 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3450 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3451 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3452 | |
3453 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3454 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3455 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3456 | } |
3457 | ||
3458 | ||
3459 | /* Make prototypes for runtime library functions. */ | |
3460 | ||
3461 | void | |
3462 | gfc_build_builtin_function_decls (void) | |
3463 | { | |
90ba9145 | 3464 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3465 | |
241ecdc7 | 3466 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3467 | get_identifier (PREFIX("stop_numeric")), | |
3468 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3469 | /* STOP doesn't return. */ |
98ccec97 | 3470 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3471 | ||
241ecdc7 | 3472 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3473 | get_identifier (PREFIX("stop_string")), ".R.", | |
3474 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3475 | /* STOP doesn't return. */ |
241ecdc7 | 3476 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3477 | |
241ecdc7 | 3478 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3479 | get_identifier (PREFIX("error_stop_numeric")), | |
3480 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3481 | /* ERROR STOP doesn't return. */ |
3482 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3483 | ||
241ecdc7 | 3484 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3485 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3486 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3487 | /* ERROR STOP doesn't return. */ |
3488 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3489 | ||
241ecdc7 | 3490 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3491 | get_identifier (PREFIX("pause_numeric")), | |
3492 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3493 | |
241ecdc7 | 3494 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3495 | get_identifier (PREFIX("pause_string")), ".R.", | |
3496 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3497 | |
241ecdc7 | 3498 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3499 | get_identifier (PREFIX("runtime_error")), ".R", | |
3500 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3501 | /* The runtime_error function does not return. */ |
3502 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3503 | |
241ecdc7 | 3504 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3505 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3506 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3507 | /* The runtime_error_at function does not return. */ |
3508 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3509 | |
241ecdc7 | 3510 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3511 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3512 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3513 | ||
3514 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3515 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3516 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3517 | pchar_type_node); | |
3518 | ||
3519 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3520 | get_identifier (PREFIX("os_error")), ".R", | |
3521 | void_type_node, 1, pchar_type_node); | |
9915365e | 3522 | /* The runtime_error function does not return. */ |
3523 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3524 | ||
241ecdc7 | 3525 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3526 | get_identifier (PREFIX("set_args")), | |
3527 | void_type_node, 2, integer_type_node, | |
3528 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3529 | |
241ecdc7 | 3530 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3531 | get_identifier (PREFIX("set_fpe")), | |
3532 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3533 | |
d566c3e0 | 3534 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3535 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3536 | void_type_node, 1, pvoid_type_node); | |
3537 | ||
3538 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3539 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3540 | void_type_node, 1, pvoid_type_node); | |
3541 | ||
56c7c2d7 | 3542 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3543 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3544 | get_identifier (PREFIX("set_options")), "..R", | |
3545 | void_type_node, 2, integer_type_node, | |
3546 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3547 | |
241ecdc7 | 3548 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3549 | get_identifier (PREFIX("set_convert")), | |
3550 | void_type_node, 1, integer_type_node); | |
15774a8b | 3551 | |
241ecdc7 | 3552 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3553 | get_identifier (PREFIX("set_record_marker")), | |
3554 | void_type_node, 1, integer_type_node); | |
f23886ab | 3555 | |
241ecdc7 | 3556 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3557 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3558 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3559 | |
8ce86007 | 3560 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3561 | get_identifier (PREFIX("internal_pack")), ".r", |
3562 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3563 | |
8ce86007 | 3564 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3565 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3566 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3567 | ||
3568 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3569 | get_identifier (PREFIX("associated")), ".RR", | |
3570 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3571 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3572 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3573 | |
70b5944a | 3574 | /* Coarray library calls. */ |
4fe73152 | 3575 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3576 | { |
3577 | tree pint_type, pppchar_type; | |
3578 | ||
3579 | pint_type = build_pointer_type (integer_type_node); | |
3580 | pppchar_type | |
3581 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3582 | ||
3583 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
65cbb21d | 3584 | get_identifier (PREFIX("caf_init")), void_type_node, |
3585 | 2, pint_type, pppchar_type); | |
70b5944a | 3586 | |
3587 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3588 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3589 | ||
d44f2f7c | 3590 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
65cbb21d | 3591 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3592 | 1, integer_type_node); | |
d44f2f7c | 3593 | |
3594 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
65cbb21d | 3595 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3596 | 2, integer_type_node, integer_type_node); | |
d44f2f7c | 3597 | |
a961ca30 | 3598 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
eee0cf09 | 3599 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3600 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
3601 | pint_type, pchar_type_node, integer_type_node); | |
d0d776fb | 3602 | |
3603 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3d2aa0e8 | 3604 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3605 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
3606 | integer_type_node); | |
a961ca30 | 3607 | |
5f4a118e | 3608 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3609 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3610 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3611 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3612 | boolean_type_node, pint_type); |
5f4a118e | 3613 | |
3614 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3615 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRW", void_type_node, 10, |
3616 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3617 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3618 | boolean_type_node, pint_type); |
5f4a118e | 3619 | |
3620 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
eee0cf09 | 3621 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3622 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3623 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3624 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3625 | integer_type_node, boolean_type_node, integer_type_node); | |
3626 | ||
3627 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
3628 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRW", void_type_node, | |
3629 | 9, pvoid_type_node, integer_type_node, pvoid_type_node, pvoid_type_node, | |
3630 | integer_type_node, integer_type_node, boolean_type_node, | |
3631 | boolean_type_node, pint_type); | |
3632 | ||
3633 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
3634 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRW", void_type_node, | |
3635 | 9, pvoid_type_node, integer_type_node, pvoid_type_node, pvoid_type_node, | |
3636 | integer_type_node, integer_type_node, boolean_type_node, | |
3637 | boolean_type_node, pint_type); | |
3638 | ||
3639 | gfor_fndecl_caf_sendget_by_ref | |
3640 | = gfc_build_library_function_decl_with_spec ( | |
3641 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWW", | |
3642 | void_type_node, 11, pvoid_type_node, integer_type_node, | |
3643 | pvoid_type_node, pvoid_type_node, integer_type_node, | |
3644 | pvoid_type_node, integer_type_node, integer_type_node, | |
3645 | boolean_type_node, pint_type, pint_type); | |
5f4a118e | 3646 | |
70b5944a | 3647 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3648 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3649 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3650 | |
71cf3ae6 | 3651 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3652 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3653 | 3, pint_type, pchar_type_node, integer_type_node); | |
3654 | ||
70b5944a | 3655 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3656 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3657 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3658 | pchar_type_node, integer_type_node); |
70b5944a | 3659 | |
3660 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3661 | get_identifier (PREFIX("caf_error_stop")), | |
3662 | void_type_node, 1, gfc_int4_type_node); | |
3663 | /* CAF's ERROR STOP doesn't return. */ | |
3664 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3665 | ||
3666 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3667 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3668 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3669 | /* CAF's ERROR STOP doesn't return. */ | |
3670 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3671 | |
ba4d9b7e | 3672 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3673 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
3674 | void_type_node, 1, gfc_int4_type_node); | |
ba4d9b7e | 3675 | /* CAF's STOP doesn't return. */ |
3676 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3677 | ||
3678 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3679 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
3680 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
ba4d9b7e | 3681 | /* CAF's STOP doesn't return. */ |
3682 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3683 | ||
97b9ac34 | 3684 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3685 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3686 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3687 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3688 | |
3689 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3690 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3691 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3692 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3693 | |
3694 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3695 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3696 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3697 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
97b9ac34 | 3698 | integer_type_node, integer_type_node); |
3699 | ||
3700 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3701 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3702 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3703 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3704 | integer_type_node, integer_type_node); | |
3705 | ||
498b946e | 3706 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3707 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3708 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3709 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3710 | ||
3711 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3712 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3713 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
498b946e | 3714 | pint_type, pchar_type_node, integer_type_node); |
3715 | ||
bd47f0bc | 3716 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3717 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3718 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3719 | pint_type, pchar_type_node, integer_type_node); | |
3720 | ||
3721 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3722 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3723 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3724 | pint_type, pchar_type_node, integer_type_node); | |
3725 | ||
3726 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3727 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3728 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3729 | pint_type, pint_type); | |
3730 | ||
52306a18 | 3731 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3732 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3733 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3734 | pint_type, pchar_type_node, integer_type_node); | |
3735 | ||
79ed4a8e | 3736 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3737 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3738 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3739 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3740 | ||
3741 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3742 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3743 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3744 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3745 | ||
e39efcef | 3746 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3747 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3748 | void_type_node, 8, pvoid_type_node, | |
65cbb21d | 3749 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
e39efcef | 3750 | NULL_TREE)), |
3751 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3752 | integer_type_node, integer_type_node); | |
3753 | ||
79ed4a8e | 3754 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3755 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3756 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3757 | pint_type, pchar_type_node, integer_type_node); |
3d2aa0e8 | 3758 | |
3759 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3760 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3761 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3762 | pvoid_type_node); | |
70b5944a | 3763 | } |
3764 | ||
4ee9c684 | 3765 | gfc_build_intrinsic_function_decls (); |
3766 | gfc_build_intrinsic_lib_fndecls (); | |
3767 | gfc_build_io_library_fndecls (); | |
3768 | } | |
3769 | ||
3770 | ||
231e961a | 3771 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3772 | |
c5faa799 | 3773 | static void |
3774 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3775 | gfc_wrapped_block *block) | |
4ee9c684 | 3776 | { |
c5faa799 | 3777 | stmtblock_t init; |
4ee9c684 | 3778 | |
b9c7fce7 | 3779 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3780 | |
c5faa799 | 3781 | gfc_start_block (&init); |
4ee9c684 | 3782 | |
3783 | /* Evaluate the string length expression. */ | |
c5faa799 | 3784 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3785 | |
c5faa799 | 3786 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3787 | |
c5faa799 | 3788 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3789 | } |
3790 | ||
3791 | ||
3792 | /* Allocate and cleanup an automatic character variable. */ | |
3793 | ||
c5faa799 | 3794 | static void |
3795 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3796 | { |
c5faa799 | 3797 | stmtblock_t init; |
4ee9c684 | 3798 | tree decl; |
4ee9c684 | 3799 | tree tmp; |
3800 | ||
22d678e8 | 3801 | gcc_assert (sym->backend_decl); |
eeebe20b | 3802 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3803 | |
3714c8b6 | 3804 | gfc_init_block (&init); |
4ee9c684 | 3805 | |
3806 | /* Evaluate the string length expression. */ | |
c5faa799 | 3807 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3808 | |
c5faa799 | 3809 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3810 | |
4ee9c684 | 3811 | decl = sym->backend_decl; |
3812 | ||
afcf285e | 3813 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3814 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3815 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3816 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3817 | |
c5faa799 | 3818 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3819 | } |
3820 | ||
c8f1568f | 3821 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3822 | ||
c5faa799 | 3823 | static void |
3824 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3825 | { |
c5faa799 | 3826 | stmtblock_t init; |
c8f1568f | 3827 | |
3828 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3829 | gfc_start_block (&init); |
c8f1568f | 3830 | |
3831 | /* Set the initial value to length. See the comments in | |
3832 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3833 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3834 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3835 | |
c5faa799 | 3836 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3837 | } |
3838 | ||
d4163395 | 3839 | static void |
3840 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3841 | { | |
3842 | tree t = *tp, var, val; | |
3843 | ||
3844 | if (t == NULL || t == error_mark_node) | |
3845 | return; | |
3846 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3847 | return; | |
3848 | ||
3849 | if (TREE_CODE (t) == SAVE_EXPR) | |
3850 | { | |
3851 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3852 | { | |
3853 | *tp = TREE_OPERAND (t, 0); | |
3854 | return; | |
3855 | } | |
3856 | val = TREE_OPERAND (t, 0); | |
3857 | } | |
3858 | else | |
3859 | val = t; | |
3860 | ||
3861 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3862 | gfc_add_decl_to_function (var); | |
1ec957b0 | 3863 | gfc_add_modify (body, var, unshare_expr (val)); |
d4163395 | 3864 | if (TREE_CODE (t) == SAVE_EXPR) |
3865 | TREE_OPERAND (t, 0) = var; | |
3866 | *tp = var; | |
3867 | } | |
3868 | ||
3869 | static void | |
3870 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3871 | { | |
3872 | tree t; | |
3873 | ||
3874 | if (type == NULL || type == error_mark_node) | |
3875 | return; | |
3876 | ||
3877 | type = TYPE_MAIN_VARIANT (type); | |
3878 | ||
3879 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3880 | { | |
3881 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3882 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3883 | ||
3884 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3885 | { | |
3886 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3887 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3888 | } | |
3889 | } | |
3890 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3891 | { | |
3892 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3893 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3894 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3895 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3896 | ||
3897 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3898 | { | |
3899 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3900 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3901 | } | |
3902 | } | |
3903 | } | |
3904 | ||
3905 | /* Make sure all type sizes and array domains are either constant, | |
3906 | or variable or parameter decls. This is a simplified variant | |
3907 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3908 | variables in the expressions have been gimplified yet. | |
3909 | As type sizes and domains for various variable length arrays | |
3910 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3911 | time, without this routine gimplify_type_sizes in the middle-end | |
3912 | could result in the type sizes being gimplified earlier than where | |
3913 | those variables are initialized. */ | |
3914 | ||
3915 | void | |
3916 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3917 | { | |
3918 | tree type = TREE_TYPE (sym->backend_decl); | |
3919 | ||
3920 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3921 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3922 | { | |
3923 | if (! current_fake_result_decl) | |
3924 | return; | |
3925 | ||
3926 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3927 | } | |
3928 | ||
3929 | while (POINTER_TYPE_P (type)) | |
3930 | type = TREE_TYPE (type); | |
3931 | ||
3932 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3933 | { | |
3934 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3935 | ||
3936 | while (POINTER_TYPE_P (etype)) | |
3937 | etype = TREE_TYPE (etype); | |
3938 | ||
3939 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3940 | } | |
3941 | ||
3942 | gfc_trans_vla_type_sizes_1 (type, body); | |
3943 | } | |
3944 | ||
4ee9c684 | 3945 | |
f0d4969f | 3946 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3947 | and using trans_assignment to do the work. Set dealloc to false |
3948 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3949 | void |
3950 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3951 | { |
f0d4969f | 3952 | gfc_expr *e; |
87114d2e | 3953 | tree tmp; |
3954 | tree present; | |
3955 | ||
c5faa799 | 3956 | gcc_assert (block); |
3957 | ||
f0d4969f | 3958 | gcc_assert (!sym->attr.allocatable); |
3959 | gfc_set_sym_referenced (sym); | |
3960 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3961 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3962 | if (sym->attr.dummy && (sym->attr.optional |
3963 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3964 | { |
f0d4969f | 3965 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3966 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3967 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3968 | } |
c5faa799 | 3969 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3970 | gfc_free_expr (e); |
87114d2e | 3971 | } |
3972 | ||
3973 | ||
8714fc76 | 3974 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3975 | them their default initializer, if they do not have allocatable | |
293d72e0 | 3976 | components, they have their allocatable components deallocated. */ |
8714fc76 | 3977 | |
c5faa799 | 3978 | static void |
3979 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3980 | { |
c5faa799 | 3981 | stmtblock_t init; |
f0d4969f | 3982 | gfc_formal_arglist *f; |
8714fc76 | 3983 | tree tmp; |
5907c3ea | 3984 | tree present; |
f0d4969f | 3985 | |
c5faa799 | 3986 | gfc_init_block (&init); |
6777213b | 3987 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3988 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3989 | && !f->sym->attr.pointer |
3990 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3991 | { |
942ba353 | 3992 | tmp = NULL_TREE; |
3993 | ||
3994 | /* Note: Allocatables are excluded as they are already handled | |
3995 | by the caller. */ | |
3996 | if (!f->sym->attr.allocatable | |
3997 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3998 | { |
942ba353 | 3999 | stmtblock_t block; |
4000 | gfc_expr *e; | |
4001 | ||
4002 | gfc_init_block (&block); | |
4003 | f->sym->attr.referenced = 1; | |
4004 | e = gfc_lval_expr_from_sym (f->sym); | |
4005 | gfc_add_finalizer_call (&block, e); | |
4006 | gfc_free_expr (e); | |
4007 | tmp = gfc_finish_block (&block); | |
4008 | } | |
5907c3ea | 4009 | |
942ba353 | 4010 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4011 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4012 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4013 | f->sym->backend_decl, | |
4014 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 4015 | |
942ba353 | 4016 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4017 | || f->sym->ns->proc_name->attr.entry_master)) | |
4018 | { | |
4019 | present = gfc_conv_expr_present (f->sym); | |
4020 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4021 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 4022 | } |
942ba353 | 4023 | |
4024 | if (tmp != NULL_TREE) | |
4025 | gfc_add_expr_to_block (&init, tmp); | |
4026 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 4027 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 4028 | } |
c56d57d6 | 4029 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4030 | && f->sym->ts.type == BT_CLASS | |
4031 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 4032 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 4033 | { |
942ba353 | 4034 | stmtblock_t block; |
4035 | gfc_expr *e; | |
4036 | ||
4037 | gfc_init_block (&block); | |
4038 | f->sym->attr.referenced = 1; | |
4039 | e = gfc_lval_expr_from_sym (f->sym); | |
4040 | gfc_add_finalizer_call (&block, e); | |
4041 | gfc_free_expr (e); | |
4042 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 4043 | |
4044 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4045 | { | |
4046 | present = gfc_conv_expr_present (f->sym); | |
4047 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4048 | present, tmp, | |
4049 | build_empty_stmt (input_location)); | |
4050 | } | |
4051 | ||
4052 | gfc_add_expr_to_block (&init, tmp); | |
4053 | } | |
f0d4969f | 4054 | |
c5faa799 | 4055 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 4056 | } |
4057 | ||
87114d2e | 4058 | |
b345a09f | 4059 | /* Helper function to manage deferred string lengths. */ |
4060 | ||
4061 | static tree | |
4062 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4063 | locus *loc) | |
4064 | { | |
4065 | tree tmp; | |
4066 | ||
4067 | /* Character length passed by reference. */ | |
4068 | tmp = sym->ts.u.cl->passed_length; | |
4069 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4070 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4071 | ||
4072 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4073 | /* Zero the string length when entering the scope. */ | |
4074 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4075 | build_int_cst (gfc_charlen_type_node, 0)); | |
4076 | else | |
4077 | { | |
4078 | tree tmp2; | |
4079 | ||
4080 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4081 | gfc_charlen_type_node, | |
4082 | sym->ts.u.cl->backend_decl, tmp); | |
4083 | if (sym->attr.optional) | |
4084 | { | |
4085 | tree present = gfc_conv_expr_present (sym); | |
4086 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4087 | void_type_node, present, tmp2, | |
4088 | build_empty_stmt (input_location)); | |
4089 | } | |
4090 | gfc_add_expr_to_block (init, tmp2); | |
4091 | } | |
4092 | ||
4093 | gfc_restore_backend_locus (loc); | |
4094 | ||
4095 | /* Pass the final character length back. */ | |
4096 | if (sym->attr.intent != INTENT_IN) | |
4097 | { | |
4098 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4099 | gfc_charlen_type_node, tmp, | |
4100 | sym->ts.u.cl->backend_decl); | |
4101 | if (sym->attr.optional) | |
4102 | { | |
4103 | tree present = gfc_conv_expr_present (sym); | |
4104 | tmp = build3_loc (input_location, COND_EXPR, | |
4105 | void_type_node, present, tmp, | |
4106 | build_empty_stmt (input_location)); | |
4107 | } | |
4108 | } | |
4109 | else | |
4110 | tmp = NULL_TREE; | |
4111 | ||
4112 | return tmp; | |
4113 | } | |
4114 | ||
4ee9c684 | 4115 | /* Generate function entry and exit code, and add it to the function body. |
4116 | This includes: | |
f888a3fb | 4117 | Allocation and initialization of array variables. |
4ee9c684 | 4118 | Allocation of character string variables. |
c8f1568f | 4119 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 4120 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 4121 | Initialization of ASSOCIATE names. |
0a96a7cc | 4122 | Automatic deallocation. */ |
4ee9c684 | 4123 | |
89ac8ba1 | 4124 | void |
4125 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 4126 | { |
4127 | locus loc; | |
4128 | gfc_symbol *sym; | |
d4163395 | 4129 | gfc_formal_arglist *f; |
c5faa799 | 4130 | stmtblock_t tmpblock; |
25dd7350 | 4131 | bool seen_trans_deferred_array = false; |
617125a6 | 4132 | tree tmp = NULL; |
4133 | gfc_expr *e; | |
4134 | gfc_se se; | |
4135 | stmtblock_t init; | |
4ee9c684 | 4136 | |
4137 | /* Deal with implicit return variables. Explicit return variables will | |
4138 | already have been added. */ | |
4139 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4140 | { | |
4141 | if (!current_fake_result_decl) | |
4142 | { | |
c6871095 | 4143 | gfc_entry_list *el = NULL; |
4144 | if (proc_sym->attr.entry_master) | |
4145 | { | |
4146 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4147 | if (el->sym != el->sym->result) | |
4148 | break; | |
4149 | } | |
fa7b6574 | 4150 | /* TODO: move to the appropriate place in resolve.c. */ |
4151 | if (warn_return_type && el == NULL) | |
4166acc7 | 4152 | gfc_warning (OPT_Wreturn_type, |
4153 | "Return value of function %qs at %L not set", | |
fa7b6574 | 4154 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 4155 | } |
c6871095 | 4156 | else if (proc_sym->as) |
4ee9c684 | 4157 | { |
d4163395 | 4158 | tree result = TREE_VALUE (current_fake_result_decl); |
9da84a54 | 4159 | gfc_save_backend_locus (&loc); |
4160 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4161 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 4162 | |
4163 | /* An automatic character length, pointer array result. */ | |
4164 | if (proc_sym->ts.type == BT_CHARACTER | |
fe732a9b | 4165 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
b345a09f | 4166 | { |
4167 | tmp = NULL; | |
4168 | if (proc_sym->ts.deferred) | |
4169 | { | |
b345a09f | 4170 | gfc_start_block (&init); |
4171 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4172 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4173 | } | |
4174 | else | |
4175 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4176 | } | |
4ee9c684 | 4177 | } |
4178 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4179 | { | |
617125a6 | 4180 | if (proc_sym->ts.deferred) |
4181 | { | |
4182 | tmp = NULL; | |
da2c4122 | 4183 | gfc_save_backend_locus (&loc); |
4184 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 4185 | gfc_start_block (&init); |
4186 | /* Zero the string length on entry. */ | |
4187 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4188 | build_int_cst (gfc_charlen_type_node, 0)); | |
4189 | /* Null the pointer. */ | |
4190 | e = gfc_lval_expr_from_sym (proc_sym); | |
4191 | gfc_init_se (&se, NULL); | |
4192 | se.want_pointer = 1; | |
4193 | gfc_conv_expr (&se, e); | |
4194 | gfc_free_expr (e); | |
4195 | tmp = se.expr; | |
4196 | gfc_add_modify (&init, tmp, | |
4197 | fold_convert (TREE_TYPE (se.expr), | |
4198 | null_pointer_node)); | |
da2c4122 | 4199 | gfc_restore_backend_locus (&loc); |
617125a6 | 4200 | |
4201 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 4202 | tmp = proc_sym->ts.u.cl->backend_decl; |
b345a09f | 4203 | if (TREE_CODE (tmp) != INDIRECT_REF |
4204 | && proc_sym->ts.u.cl->passed_length) | |
ddcfeaf1 | 4205 | { |
a4731200 | 4206 | tmp = proc_sym->ts.u.cl->passed_length; |
4207 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4208 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4209 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4210 | gfc_charlen_type_node, tmp, | |
4211 | proc_sym->ts.u.cl->backend_decl); | |
ddcfeaf1 | 4212 | } |
4213 | else | |
4214 | tmp = NULL_TREE; | |
4215 | ||
617125a6 | 4216 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4217 | } | |
fe732a9b | 4218 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
89ac8ba1 | 4219 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4220 | } |
4221 | else | |
829d7a08 | 4222 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4223 | } |
4224 | ||
87114d2e | 4225 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4226 | should be done here so that the offsets and lbounds of arrays | |
4227 | are available. */ | |
da2c4122 | 4228 | gfc_save_backend_locus (&loc); |
4229 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4230 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4231 | gfc_restore_backend_locus (&loc); |
87114d2e | 4232 | |
4ee9c684 | 4233 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4234 | { | |
6b3ceb4e | 4235 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4236 | && (sym->ts.u.derived->attr.alloc_comp | |
4237 | || gfc_is_finalizable (sym->ts.u.derived, | |
4238 | NULL)); | |
8f3f9eab | 4239 | if (sym->assoc) |
3c82e013 | 4240 | continue; |
4241 | ||
a56d63bc | 4242 | if (sym->attr.subref_array_pointer |
4243 | && GFC_DECL_SPAN (sym->backend_decl) | |
4244 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
4245 | { | |
4246 | gfc_init_block (&tmpblock); | |
4247 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
4248 | build_int_cst (gfc_array_index_type, 0)); | |
4249 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4250 | NULL_TREE); | |
4251 | } | |
4252 | ||
85ae3cab | 4253 | if (sym->ts.type == BT_CLASS |
eb106faf | 4254 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4255 | && CLASS_DATA (sym)->attr.allocatable) |
4256 | { | |
4257 | tree vptr; | |
4258 | ||
4259 | if (UNLIMITED_POLY (sym)) | |
4260 | vptr = null_pointer_node; | |
4261 | else | |
4262 | { | |
4263 | gfc_symbol *vsym; | |
4264 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4265 | vptr = gfc_get_symbol_decl (vsym); | |
4266 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4267 | } | |
4268 | ||
4269 | if (CLASS_DATA (sym)->attr.dimension | |
4270 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4271 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4272 | { |
4273 | tmp = gfc_class_data_get (sym->backend_decl); | |
4274 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4275 | } | |
4276 | else | |
4277 | tmp = null_pointer_node; | |
4278 | ||
4279 | DECL_INITIAL (sym->backend_decl) | |
4280 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4281 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4282 | } | |
b345a09f | 4283 | else if ((sym->attr.dimension || sym->attr.codimension |
4284 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
4ee9c684 | 4285 | { |
c6793847 | 4286 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4287 | symbol_attribute *array_attr; | |
4288 | gfc_array_spec *as; | |
b345a09f | 4289 | array_type type_of_array; |
c6793847 | 4290 | |
4291 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4292 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4293 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
b345a09f | 4294 | type_of_array = as->type; |
4295 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4296 | type_of_array = AS_EXPLICIT; | |
4297 | switch (type_of_array) | |
4ee9c684 | 4298 | { |
4299 | case AS_EXPLICIT: | |
4300 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4301 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4302 | /* Allocatable and pointer arrays need to processed |
4303 | explicitly. */ | |
4304 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4305 | || (sym->ts.type == BT_CLASS | |
4306 | && CLASS_DATA (sym)->attr.class_pointer) | |
4307 | || array_attr->allocatable) | |
4ee9c684 | 4308 | { |
4309 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4310 | { |
4311 | gfc_save_backend_locus (&loc); | |
4312 | gfc_set_backend_locus (&sym->declared_at); | |
4313 | gfc_trans_static_array_pointer (sym); | |
4314 | gfc_restore_backend_locus (&loc); | |
4315 | } | |
4ee9c684 | 4316 | else |
25dd7350 | 4317 | { |
4318 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4319 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4320 | } |
4ee9c684 | 4321 | } |
c6793847 | 4322 | else if (sym->attr.codimension |
4323 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4324 | { |
4325 | gfc_init_block (&tmpblock); | |
4326 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4327 | &tmpblock, sym); | |
4328 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4329 | NULL_TREE); | |
4330 | continue; | |
4331 | } | |
197423f5 | 4332 | else |
4ee9c684 | 4333 | { |
da2c4122 | 4334 | gfc_save_backend_locus (&loc); |
4335 | gfc_set_backend_locus (&sym->declared_at); | |
4336 | ||
6b3ceb4e | 4337 | if (alloc_comp_or_fini) |
25dd7350 | 4338 | { |
4339 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4340 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4341 | } |
f0d4969f | 4342 | else if (sym->ts.type == BT_DERIVED |
4343 | && sym->value | |
4344 | && !sym->attr.data | |
4345 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4346 | { |
4347 | gfc_start_block (&tmpblock); | |
4348 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4349 | gfc_add_init_cleanup (block, |
c5faa799 | 4350 | gfc_finish_block (&tmpblock), |
4351 | NULL_TREE); | |
4352 | } | |
25dd7350 | 4353 | |
c5faa799 | 4354 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4355 | sym, block); |
4671339c | 4356 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4357 | } |
4358 | break; | |
4359 | ||
4360 | case AS_ASSUMED_SIZE: | |
4361 | /* Must be a dummy parameter. */ | |
c6793847 | 4362 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4363 | |
4364 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4365 | if (sym->attr.dummy) |
89ac8ba1 | 4366 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4367 | break; |
4ee9c684 | 4368 | |
4369 | case AS_ASSUMED_SHAPE: | |
4370 | /* Must be a dummy parameter. */ | |
22d678e8 | 4371 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4372 | |
89ac8ba1 | 4373 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4374 | break; |
4375 | ||
f00f6dd6 | 4376 | case AS_ASSUMED_RANK: |
4ee9c684 | 4377 | case AS_DEFERRED: |
25dd7350 | 4378 | seen_trans_deferred_array = true; |
89ac8ba1 | 4379 | gfc_trans_deferred_array (sym, block); |
b345a09f | 4380 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4381 | && sym->attr.result) | |
4382 | { | |
4383 | gfc_start_block (&init); | |
4384 | gfc_save_backend_locus (&loc); | |
4385 | gfc_set_backend_locus (&sym->declared_at); | |
4386 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4387 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4388 | } | |
4ee9c684 | 4389 | break; |
4390 | ||
4391 | default: | |
22d678e8 | 4392 | gcc_unreachable (); |
4ee9c684 | 4393 | } |
6b3ceb4e | 4394 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4395 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4396 | } |
fd23cc08 | 4397 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4398 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4399 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4400 | continue; |
617125a6 | 4401 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4402 | && (sym->attr.allocatable |
b345a09f | 4403 | || (sym->attr.pointer && sym->attr.result) |
456dd7d6 | 4404 | || (sym->ts.type == BT_CLASS |
4405 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4406 | { |
eb106faf | 4407 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4408 | { |
d0d776fb | 4409 | tree descriptor = NULL_TREE; |
4410 | ||
da2c4122 | 4411 | gfc_save_backend_locus (&loc); |
4412 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4413 | gfc_start_block (&init); |
617125a6 | 4414 | |
b345a09f | 4415 | if (!sym->attr.pointer) |
617125a6 | 4416 | { |
b345a09f | 4417 | /* Nullify and automatic deallocation of allocatable |
4418 | scalars. */ | |
4419 | e = gfc_lval_expr_from_sym (sym); | |
4420 | if (sym->ts.type == BT_CLASS) | |
4421 | gfc_add_data_component (e); | |
4422 | ||
4423 | gfc_init_se (&se, NULL); | |
4424 | if (sym->ts.type != BT_CLASS | |
4425 | || sym->ts.u.derived->attr.dimension | |
4426 | || sym->ts.u.derived->attr.codimension) | |
883d6776 | 4427 | { |
b345a09f | 4428 | se.want_pointer = 1; |
4429 | gfc_conv_expr (&se, e); | |
4430 | } | |
4431 | else if (sym->ts.type == BT_CLASS | |
4432 | && !CLASS_DATA (sym)->attr.dimension | |
4433 | && !CLASS_DATA (sym)->attr.codimension) | |
4434 | { | |
4435 | se.want_pointer = 1; | |
4436 | gfc_conv_expr (&se, e); | |
883d6776 | 4437 | } |
617125a6 | 4438 | else |
883d6776 | 4439 | { |
b345a09f | 4440 | se.descriptor_only = 1; |
4441 | gfc_conv_expr (&se, e); | |
4442 | descriptor = se.expr; | |
4443 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4444 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
883d6776 | 4445 | } |
b345a09f | 4446 | gfc_free_expr (e); |
617125a6 | 4447 | |
b345a09f | 4448 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
883d6776 | 4449 | { |
b345a09f | 4450 | /* Nullify when entering the scope. */ |
883d6776 | 4451 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
b345a09f | 4452 | TREE_TYPE (se.expr), se.expr, |
4453 | fold_convert (TREE_TYPE (se.expr), | |
4454 | null_pointer_node)); | |
883d6776 | 4455 | if (sym->attr.optional) |
4456 | { | |
4457 | tree present = gfc_conv_expr_present (sym); | |
4458 | tmp = build3_loc (input_location, COND_EXPR, | |
4459 | void_type_node, present, tmp, | |
4460 | build_empty_stmt (input_location)); | |
4461 | } | |
b345a09f | 4462 | gfc_add_expr_to_block (&init, tmp); |
883d6776 | 4463 | } |
617125a6 | 4464 | } |
b345a09f | 4465 | |
4466 | if ((sym->attr.dummy || sym->attr.result) | |
4467 | && sym->ts.type == BT_CHARACTER | |
4468 | && sym->ts.deferred | |
4469 | && sym->ts.u.cl->passed_length) | |
4470 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
da2c4122 | 4471 | else |
4472 | gfc_restore_backend_locus (&loc); | |
908e9973 | 4473 | |
4474 | /* Deallocate when leaving the scope. Nullifying is not | |
4475 | needed. */ | |
b345a09f | 4476 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
afb69dbf | 4477 | && !sym->ns->proc_name->attr.is_main_program) |
d0d776fb | 4478 | { |
4479 | if (sym->ts.type == BT_CLASS | |
4480 | && CLASS_DATA (sym)->attr.codimension) | |
4481 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4482 | NULL_TREE, NULL_TREE, | |
4483 | NULL_TREE, true, NULL, | |
3d2aa0e8 | 4484 | GFC_CAF_COARRAY_ANALYZE); |
d0d776fb | 4485 | else |
c23adf93 | 4486 | { |
4487 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
3d2aa0e8 | 4488 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4489 | NULL_TREE, | |
4490 | NULL_TREE, | |
4491 | true, expr, | |
4492 | sym->ts); | |
c23adf93 | 4493 | gfc_free_expr (expr); |
4494 | } | |
d0d776fb | 4495 | } |
b345a09f | 4496 | |
afc44c79 | 4497 | if (sym->ts.type == BT_CLASS) |
4498 | { | |
4499 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4500 | gfc_symbol *vtab; |
afc44c79 | 4501 | tree rhs; |
da2c4122 | 4502 | |
4503 | gfc_save_backend_locus (&loc); | |
4504 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4505 | e = gfc_lval_expr_from_sym (sym); |
4506 | gfc_add_vptr_component (e); | |
4507 | gfc_init_se (&se, NULL); | |
4508 | se.want_pointer = 1; | |
4509 | gfc_conv_expr (&se, e); | |
4510 | gfc_free_expr (e); | |
a90fe829 | 4511 | if (UNLIMITED_POLY (sym)) |
4512 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4513 | else | |
4514 | { | |
4515 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4516 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4517 | gfc_get_symbol_decl (vtab)); | |
4518 | } | |
afc44c79 | 4519 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4520 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4521 | } |
4522 | ||
89ac8ba1 | 4523 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4524 | } |
0a96a7cc | 4525 | } |
617125a6 | 4526 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4527 | { | |
4528 | tree tmp = NULL; | |
4529 | stmtblock_t init; | |
4530 | ||
4531 | /* If we get to here, all that should be left are pointers. */ | |
4532 | gcc_assert (sym->attr.pointer); | |
4533 | ||
4534 | if (sym->attr.dummy) | |
4535 | { | |
4536 | gfc_start_block (&init); | |
b345a09f | 4537 | gfc_save_backend_locus (&loc); |
4538 | gfc_set_backend_locus (&sym->declared_at); | |
4539 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
617125a6 | 4540 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4541 | } | |
4542 | } | |
3e715c81 | 4543 | else if (sym->ts.deferred) |
4544 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4545 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4546 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4547 | else if (sym->ts.type == BT_CHARACTER) |
4548 | { | |
4671339c | 4549 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4550 | gfc_set_backend_locus (&sym->declared_at); |
4551 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4552 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4553 | else |
89ac8ba1 | 4554 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4555 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4556 | } |
c8f1568f | 4557 | else if (sym->attr.assign) |
4558 | { | |
4671339c | 4559 | gfc_save_backend_locus (&loc); |
c8f1568f | 4560 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4561 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4562 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4563 | } |
f0d4969f | 4564 | else if (sym->ts.type == BT_DERIVED |
4565 | && sym->value | |
4566 | && !sym->attr.data | |
4567 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4568 | { |
4569 | gfc_start_block (&tmpblock); | |
4570 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4571 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4572 | NULL_TREE); |
4573 | } | |
a90fe829 | 4574 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 4575 | gcc_unreachable (); |
4ee9c684 | 4576 | } |
4577 | ||
c5faa799 | 4578 | gfc_init_block (&tmpblock); |
d4163395 | 4579 | |
6777213b | 4580 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4581 | { |
4582 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4583 | { | |
eeebe20b | 4584 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4585 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4586 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4587 | } |
1e853e89 | 4588 | } |
d4163395 | 4589 | |
4590 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4591 | && current_fake_result_decl != NULL) | |
4592 | { | |
eeebe20b | 4593 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4594 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4595 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4596 | } |
4597 | ||
89ac8ba1 | 4598 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4599 | } |
4600 | ||
b345a09f | 4601 | |
b594087e | 4602 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4603 | { |
2ef51f0e | 4604 | typedef const char *compare_type; |
df4d540f | 4605 | |
2ef51f0e | 4606 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4607 | static bool | |
4608 | equal (module_htab_entry *a, const char *b) | |
4609 | { | |
4610 | return !strcmp (a->name, b); | |
4611 | } | |
4612 | }; | |
4613 | ||
4614 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4615 | |
4616 | /* Hash and equality functions for module_htab's decls. */ | |
4617 | ||
2ef51f0e | 4618 | hashval_t |
4619 | module_decl_hasher::hash (tree t) | |
df4d540f | 4620 | { |
df4d540f | 4621 | const_tree n = DECL_NAME (t); |
4622 | if (n == NULL_TREE) | |
4623 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4624 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4625 | } |
4626 | ||
2ef51f0e | 4627 | bool |
4628 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4629 | { |
df4d540f | 4630 | const_tree n1 = DECL_NAME (t1); |
4631 | if (n1 == NULL_TREE) | |
4632 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4633 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4634 | } |
4635 | ||
4636 | struct module_htab_entry * | |
4637 | gfc_find_module (const char *name) | |
4638 | { | |
df4d540f | 4639 | if (! module_htab) |
2ef51f0e | 4640 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4641 | |
2ef51f0e | 4642 | module_htab_entry **slot |
4643 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4644 | if (*slot == NULL) |
4645 | { | |
25a27413 | 4646 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4647 | |
4648 | entry->name = gfc_get_string (name); | |
2ef51f0e | 4649 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4650 | *slot = entry; | |
df4d540f | 4651 | } |
2ef51f0e | 4652 | return *slot; |
df4d540f | 4653 | } |
4654 | ||
4655 | void | |
4656 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4657 | { | |
df4d540f | 4658 | const char *name; |
4659 | ||
4660 | if (DECL_NAME (decl)) | |
4661 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4662 | else | |
4663 | { | |
4664 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4665 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4666 | } | |
2ef51f0e | 4667 | tree *slot |
4668 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4669 | INSERT); | |
df4d540f | 4670 | if (*slot == NULL) |
2ef51f0e | 4671 | *slot = decl; |
df4d540f | 4672 | } |
4673 | ||
c40a5c1b | 4674 | |
4675 | /* Generate debugging symbols for namelists. This function must come after | |
4676 | generate_local_decl to ensure that the variables in the namelist are | |
4677 | already declared. */ | |
4678 | ||
4679 | static tree | |
4680 | generate_namelist_decl (gfc_symbol * sym) | |
4681 | { | |
4682 | gfc_namelist *nml; | |
4683 | tree decl; | |
4684 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4685 | ||
4686 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4687 | for (nml = sym->namelist; nml; nml = nml->next) | |
4688 | { | |
4689 | if (nml->sym->backend_decl == NULL_TREE) | |
4690 | { | |
4691 | nml->sym->attr.referenced = 1; | |
4692 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4693 | } | |
0a32260c | 4694 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4695 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4696 | } | |
4697 | ||
4698 | decl = make_node (NAMELIST_DECL); | |
4699 | TREE_TYPE (decl) = void_type_node; | |
4700 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4701 | DECL_NAME (decl) = get_identifier (sym->name); | |
4702 | return decl; | |
4703 | } | |
4704 | ||
4705 | ||
4ee9c684 | 4706 | /* Output an initialized decl for a module variable. */ |
4707 | ||
4708 | static void | |
4709 | gfc_create_module_variable (gfc_symbol * sym) | |
4710 | { | |
4711 | tree decl; | |
4ee9c684 | 4712 | |
d77f260f | 4713 | /* Module functions with alternate entries are dealt with later and |
4714 | would get caught by the next condition. */ | |
4715 | if (sym->attr.entry) | |
4716 | return; | |
4717 | ||
c5d33754 | 4718 | /* Make sure we convert the types of the derived types from iso_c_binding |
4719 | into (void *). */ | |
4720 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4721 | && sym->ts.type == BT_DERIVED) | |
4722 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4723 | ||
d7cd448a | 4724 | if (gfc_fl_struct (sym->attr.flavor) |
df4d540f | 4725 | && sym->backend_decl |
4726 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4727 | { | |
4728 | decl = sym->backend_decl; | |
4729 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4730 | |
fe9d2f5a | 4731 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 4732 | { |
4733 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4734 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4735 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4736 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4737 | == sym->ns->proc_name->backend_decl); | |
4738 | } | |
df4d540f | 4739 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4740 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4741 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4742 | } | |
4743 | ||
cf269acc | 4744 | /* Only output variables, procedure pointers and array valued, |
4745 | or derived type, parameters. */ | |
4ee9c684 | 4746 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4747 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4748 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4749 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4750 | return; |
4751 | ||
df4d540f | 4752 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4753 | { | |
4754 | decl = sym->backend_decl; | |
16a40513 | 4755 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4756 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4757 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4758 | gfc_module_add_decl (cur_module, decl); | |
4759 | } | |
4760 | ||
d43a7f7f | 4761 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4762 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 4763 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4764 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4765 | return; |
4766 | ||
2b685f8e | 4767 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4768 | if (sym->backend_decl |
df4d540f | 4769 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4770 | return; | |
2b685f8e | 4771 | |
23d075f4 | 4772 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4773 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4774 | sym->name); | |
4ee9c684 | 4775 | |
92983bfd | 4776 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4777 | && (sym->attr.access == ACCESS_UNKNOWN | |
4778 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4779 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4780 | && flag_module_private)))) |
92983bfd | 4781 | sym->attr.access = ACCESS_PRIVATE; |
4782 | ||
4783 | if (warn_unused_variable && !sym->attr.referenced | |
4784 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4785 | gfc_warning (OPT_Wunused_value, |
4786 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4787 | sym->name, &sym->declared_at); |
4788 | ||
4ee9c684 | 4789 | /* We always want module variables to be created. */ |
4790 | sym->attr.referenced = 1; | |
4791 | /* Create the decl. */ | |
4792 | decl = gfc_get_symbol_decl (sym); | |
4793 | ||
4ee9c684 | 4794 | /* Create the variable. */ |
4795 | pushdecl (decl); | |
8b7e5587 | 4796 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
4797 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
4798 | && sym->fn_result_spec)); | |
df4d540f | 4799 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
b2c4af5e | 4800 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4801 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4802 | |
4803 | /* Also add length of strings. */ | |
4804 | if (sym->ts.type == BT_CHARACTER) | |
4805 | { | |
4806 | tree length; | |
4807 | ||
eeebe20b | 4808 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4809 | gcc_assert (length || sym->attr.proc_pointer); |
4810 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4811 | { |
4812 | pushdecl (length); | |
b2c4af5e | 4813 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4814 | } |
4815 | } | |
a961ca30 | 4816 | |
4817 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4818 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4819 | has_coarray_vars = true; | |
4ee9c684 | 4820 | } |
4821 | ||
51d9479b | 4822 | /* Emit debug information for USE statements. */ |
df4d540f | 4823 | |
4824 | static void | |
4825 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4826 | { | |
4827 | gfc_use_list *use_stmt; | |
4828 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4829 | { | |
4830 | struct module_htab_entry *entry | |
4831 | = gfc_find_module (use_stmt->module_name); | |
4832 | gfc_use_rename *rent; | |
4833 | ||
4834 | if (entry->namespace_decl == NULL) | |
4835 | { | |
4836 | entry->namespace_decl | |
e60a6f7b | 4837 | = build_decl (input_location, |
4838 | NAMESPACE_DECL, | |
df4d540f | 4839 | get_identifier (use_stmt->module_name), |
4840 | void_type_node); | |
4841 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4842 | } | |
51d9479b | 4843 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4844 | if (!use_stmt->only_flag) |
4845 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4846 | NULL_TREE, | |
4847 | ns->proc_name->backend_decl, | |
4848 | false); | |
4849 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4850 | { | |
4851 | tree decl, local_name; | |
df4d540f | 4852 | |
4853 | if (rent->op != INTRINSIC_NONE) | |
4854 | continue; | |
4855 | ||
2ef51f0e | 4856 | hashval_t hash = htab_hash_string (rent->use_name); |
4857 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
4858 | INSERT); | |
df4d540f | 4859 | if (*slot == NULL) |
4860 | { | |
4861 | gfc_symtree *st; | |
4862 | ||
4863 | st = gfc_find_symtree (ns->sym_root, | |
4864 | rent->local_name[0] | |
4865 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4866 | |
4867 | /* The following can happen if a derived type is renamed. */ | |
4868 | if (!st) | |
4869 | { | |
4870 | char *name; | |
4871 | name = xstrdup (rent->local_name[0] | |
4872 | ? rent->local_name : rent->use_name); | |
4873 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4874 | st = gfc_find_symtree (ns->sym_root, name); | |
4875 | free (name); | |
4876 | gcc_assert (st); | |
4877 | } | |
857c96ba | 4878 | |
4879 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4880 | local symbol (see PR41062). */ | |
4881 | if (!st->n.sym->attr.use_assoc) | |
4882 | continue; | |
4883 | ||
51d9479b | 4884 | if (st->n.sym->backend_decl |
4885 | && DECL_P (st->n.sym->backend_decl) | |
4886 | && st->n.sym->module | |
4887 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4888 | { |
51d9479b | 4889 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
fe732a9b | 4890 | || !VAR_P (st->n.sym->backend_decl)); |
df4d540f | 4891 | decl = copy_node (st->n.sym->backend_decl); |
4892 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4893 | DECL_EXTERNAL (decl) = 1; | |
4894 | DECL_IGNORED_P (decl) = 0; | |
4895 | DECL_INITIAL (decl) = NULL_TREE; | |
4896 | } | |
c40a5c1b | 4897 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
4898 | && st->n.sym->attr.use_only | |
4899 | && st->n.sym->module | |
4900 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
4901 | == 0) | |
4902 | { | |
4903 | decl = generate_namelist_decl (st->n.sym); | |
4904 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4905 | DECL_EXTERNAL (decl) = 1; | |
4906 | DECL_IGNORED_P (decl) = 0; | |
4907 | DECL_INITIAL (decl) = NULL_TREE; | |
4908 | } | |
df4d540f | 4909 | else |
4910 | { | |
4911 | *slot = error_mark_node; | |
2ef51f0e | 4912 | entry->decls->clear_slot (slot); |
df4d540f | 4913 | continue; |
4914 | } | |
4915 | *slot = decl; | |
4916 | } | |
4917 | decl = (tree) *slot; | |
4918 | if (rent->local_name[0]) | |
4919 | local_name = get_identifier (rent->local_name); | |
4920 | else | |
4921 | local_name = NULL_TREE; | |
51d9479b | 4922 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4923 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4924 | ns->proc_name->backend_decl, | |
4925 | !use_stmt->only_flag); | |
4926 | } | |
4927 | } | |
4ee9c684 | 4928 | } |
4929 | ||
51d9479b | 4930 | |
2eb674c9 | 4931 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4932 | will handle. */ | |
4933 | ||
4934 | static bool | |
4935 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4936 | bool pointer) | |
4937 | { | |
4938 | gfc_constructor *c; | |
4939 | gfc_component *cm; | |
4940 | ||
4941 | if (pointer) | |
4942 | return true; | |
4943 | else if (array) | |
4944 | { | |
4945 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4946 | return true; | |
4947 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4948 | return check_constant_initializer (expr, ts, false, false); | |
4949 | else if (expr->expr_type != EXPR_ARRAY) | |
4950 | return false; | |
126387b5 | 4951 | for (c = gfc_constructor_first (expr->value.constructor); |
4952 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4953 | { |
4954 | if (c->iterator) | |
4955 | return false; | |
4956 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4957 | { | |
4958 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4959 | return false; | |
4960 | } | |
4961 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4962 | return false; | |
4963 | } | |
4964 | return true; | |
4965 | } | |
4966 | else switch (ts->type) | |
4967 | { | |
d7cd448a | 4968 | case_bt_struct: |
2eb674c9 | 4969 | if (expr->expr_type != EXPR_STRUCTURE) |
4970 | return false; | |
eeebe20b | 4971 | cm = expr->ts.u.derived->components; |
126387b5 | 4972 | for (c = gfc_constructor_first (expr->value.constructor); |
4973 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4974 | { |
4975 | if (!c->expr || cm->attr.allocatable) | |
4976 | continue; | |
4977 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4978 | cm->attr.dimension, | |
4979 | cm->attr.pointer)) | |
4980 | return false; | |
4981 | } | |
4982 | return true; | |
4983 | default: | |
4984 | return expr->expr_type == EXPR_CONSTANT; | |
4985 | } | |
4986 | } | |
4987 | ||
4988 | /* Emit debug info for parameters and unreferenced variables with | |
4989 | initializers. */ | |
4990 | ||
4991 | static void | |
4992 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4993 | { | |
4994 | tree decl; | |
4995 | ||
4996 | if (sym->attr.flavor != FL_PARAMETER | |
4997 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4998 | return; | |
4999 | ||
5000 | if (sym->backend_decl != NULL | |
5001 | || sym->value == NULL | |
5002 | || sym->attr.use_assoc | |
5003 | || sym->attr.dummy | |
5004 | || sym->attr.result | |
5005 | || sym->attr.function | |
5006 | || sym->attr.intrinsic | |
5007 | || sym->attr.pointer | |
5008 | || sym->attr.allocatable | |
5009 | || sym->attr.cray_pointee | |
5010 | || sym->attr.threadprivate | |
5011 | || sym->attr.is_bind_c | |
5012 | || sym->attr.subref_array_pointer | |
5013 | || sym->attr.assign) | |
5014 | return; | |
5015 | ||
5016 | if (sym->ts.type == BT_CHARACTER) | |
5017 | { | |
eeebe20b | 5018 | gfc_conv_const_charlen (sym->ts.u.cl); |
5019 | if (sym->ts.u.cl->backend_decl == NULL | |
5020 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 5021 | return; |
5022 | } | |
eeebe20b | 5023 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 5024 | return; |
5025 | ||
5026 | if (sym->as) | |
5027 | { | |
5028 | int n; | |
5029 | ||
5030 | if (sym->as->type != AS_EXPLICIT) | |
5031 | return; | |
5032 | for (n = 0; n < sym->as->rank; n++) | |
5033 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5034 | || sym->as->upper[n] == NULL | |
5035 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5036 | return; | |
5037 | } | |
5038 | ||
5039 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5040 | sym->attr.dimension, false)) | |
5041 | return; | |
5042 | ||
4fe73152 | 5043 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 5044 | return; |
5045 | ||
2eb674c9 | 5046 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 5047 | decl = build_decl (input_location, |
5048 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 5049 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5050 | if (sym->attr.flavor == FL_PARAMETER) | |
5051 | TREE_READONLY (decl) = 1; | |
5052 | gfc_set_decl_location (decl, &sym->declared_at); | |
5053 | if (sym->attr.dimension) | |
5054 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5055 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5056 | TREE_STATIC (decl) = 1; | |
5057 | TREE_USED (decl) = 1; | |
5058 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5059 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 5060 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5061 | TREE_TYPE (decl), | |
5062 | sym->attr.dimension, | |
5063 | false, false); | |
3a1c9df2 | 5064 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 5065 | } |
5066 | ||
a961ca30 | 5067 | |
5068 | static void | |
5069 | generate_coarray_sym_init (gfc_symbol *sym) | |
5070 | { | |
eee0cf09 | 5071 | tree tmp, size, decl, token, desc; |
bd47f0bc | 5072 | bool is_lock_type, is_event_type; |
498b946e | 5073 | int reg_type; |
eee0cf09 | 5074 | gfc_se se; |
5075 | symbol_attribute attr; | |
a961ca30 | 5076 | |
5077 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 5078 | || sym->attr.use_assoc || !sym->attr.referenced |
5079 | || sym->attr.select_type_temporary) | |
a961ca30 | 5080 | return; |
5081 | ||
5082 | decl = sym->backend_decl; | |
5083 | TREE_USED(decl) = 1; | |
5084 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5085 | ||
498b946e | 5086 | is_lock_type = sym->ts.type == BT_DERIVED |
5087 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5088 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5089 | ||
bd47f0bc | 5090 | is_event_type = sym->ts.type == BT_DERIVED |
5091 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5092 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5093 | ||
a961ca30 | 5094 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5095 | to make sure the variable is not optimized away. */ | |
5096 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5097 | ||
498b946e | 5098 | /* For lock types, we pass the array size as only the library knows the |
5099 | size of the variable. */ | |
bd47f0bc | 5100 | if (is_lock_type || is_event_type) |
498b946e | 5101 | size = gfc_index_one_node; |
5102 | else | |
5103 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 5104 | |
a90fe829 | 5105 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 5106 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5107 | fold_convert (size_type_node, size), | |
5108 | build_int_cst (size_type_node, 1)); | |
5109 | ||
a961ca30 | 5110 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5111 | { | |
5112 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5113 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 5114 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 5115 | } |
5116 | ||
5117 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5118 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5119 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 5120 | if (is_lock_type) |
5121 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 5122 | else if (is_event_type) |
5123 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 5124 | else |
5125 | reg_type = GFC_CAF_COARRAY_STATIC; | |
eee0cf09 | 5126 | |
5127 | gfc_init_se (&se, NULL); | |
5128 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5129 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5130 | ||
5131 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
498b946e | 5132 | build_int_cst (integer_type_node, reg_type), |
eee0cf09 | 5133 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5134 | null_pointer_node, /* stat. */ | |
3d2aa0e8 | 5135 | null_pointer_node, /* errgmsg. */ |
5136 | integer_zero_node); /* errmsg_len. */ | |
eee0cf09 | 5137 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5138 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5139 | gfc_conv_descriptor_data_get (desc))); | |
a961ca30 | 5140 | |
a961ca30 | 5141 | /* Handle "static" initializer. */ |
5142 | if (sym->value) | |
5143 | { | |
5144 | sym->attr.pointer = 1; | |
5145 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5146 | true, false); | |
5147 | sym->attr.pointer = 0; | |
5148 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5149 | } | |
5150 | } | |
5151 | ||
5152 | ||
5153 | /* Generate constructor function to initialize static, nonallocatable | |
5154 | coarrays. */ | |
5155 | ||
5156 | static void | |
5157 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5158 | { | |
5159 | tree fndecl, tmp, decl, save_fn_decl; | |
5160 | ||
5161 | save_fn_decl = current_function_decl; | |
5162 | push_function_context (); | |
5163 | ||
5164 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5165 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5166 | create_tmp_var_name ("_caf_init"), tmp); | |
5167 | ||
5168 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5169 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5170 | ||
5171 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5172 | DECL_ARTIFICIAL (decl) = 1; | |
5173 | DECL_IGNORED_P (decl) = 1; | |
5174 | DECL_CONTEXT (decl) = fndecl; | |
5175 | DECL_RESULT (fndecl) = decl; | |
5176 | ||
5177 | pushdecl (fndecl); | |
5178 | current_function_decl = fndecl; | |
5179 | announce_function (fndecl); | |
5180 | ||
5181 | rest_of_decl_compilation (fndecl, 0, 0); | |
5182 | make_decl_rtl (fndecl); | |
00cf115c | 5183 | allocate_struct_function (fndecl, false); |
a961ca30 | 5184 | |
cde2be84 | 5185 | pushlevel (); |
a961ca30 | 5186 | gfc_init_block (&caf_init_block); |
5187 | ||
5188 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5189 | ||
5190 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5191 | decl = getdecls (); | |
5192 | ||
cde2be84 | 5193 | poplevel (1, 1); |
a961ca30 | 5194 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5195 | ||
5196 | DECL_SAVED_TREE (fndecl) | |
5197 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5198 | DECL_INITIAL (fndecl)); | |
5199 | dump_function (TDI_original, fndecl); | |
5200 | ||
5201 | cfun->function_end_locus = input_location; | |
5202 | set_cfun (NULL); | |
5203 | ||
5204 | if (decl_function_context (fndecl)) | |
415d1b9a | 5205 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5206 | else |
35ee1c66 | 5207 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5208 | |
5209 | pop_function_context (); | |
5210 | current_function_decl = save_fn_decl; | |
5211 | } | |
5212 | ||
5213 | ||
c40a5c1b | 5214 | static void |
5215 | create_module_nml_decl (gfc_symbol *sym) | |
5216 | { | |
5217 | if (sym->attr.flavor == FL_NAMELIST) | |
5218 | { | |
5219 | tree decl = generate_namelist_decl (sym); | |
5220 | pushdecl (decl); | |
5221 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5222 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5223 | rest_of_decl_compilation (decl, 1, 0); | |
5224 | gfc_module_add_decl (cur_module, decl); | |
5225 | } | |
5226 | } | |
5227 | ||
5228 | ||
51d9479b | 5229 | /* Generate all the required code for module variables. */ |
5230 | ||
5231 | void | |
5232 | gfc_generate_module_vars (gfc_namespace * ns) | |
5233 | { | |
5234 | module_namespace = ns; | |
5235 | cur_module = gfc_find_module (ns->proc_name->name); | |
5236 | ||
5237 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5238 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5239 | ||
5240 | /* Generate COMMON blocks. */ | |
5241 | gfc_trans_common (ns); | |
5242 | ||
a961ca30 | 5243 | has_coarray_vars = false; |
5244 | ||
51d9479b | 5245 | /* Create decls for all the module variables. */ |
5246 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5247 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5248 | |
4fe73152 | 5249 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5250 | generate_coarray_init (ns); |
5251 | ||
51d9479b | 5252 | cur_module = NULL; |
5253 | ||
5254 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5255 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5256 | } |
5257 | ||
5258 | ||
4ee9c684 | 5259 | static void |
5260 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5261 | { | |
5262 | gfc_namespace *ns; | |
5263 | ||
5264 | /* We create all the prototypes before generating any code. */ | |
5265 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5266 | { | |
5267 | /* Skip namespaces from used modules. */ | |
5268 | if (ns->parent != parent) | |
5269 | continue; | |
5270 | ||
d896f9b3 | 5271 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5272 | } |
5273 | ||
5274 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5275 | { | |
5276 | /* Skip namespaces from used modules. */ | |
5277 | if (ns->parent != parent) | |
5278 | continue; | |
5279 | ||
5280 | gfc_generate_function_code (ns); | |
5281 | } | |
5282 | } | |
5283 | ||
5284 | ||
d95efb59 | 5285 | /* Drill down through expressions for the array specification bounds and |
5286 | character length calling generate_local_decl for all those variables | |
5287 | that have not already been declared. */ | |
5288 | ||
5289 | static void | |
5290 | generate_local_decl (gfc_symbol *); | |
5291 | ||
1acb400a | 5292 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5293 | |
1acb400a | 5294 | static bool |
5295 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5296 | int *f ATTRIBUTE_UNUSED) | |
5297 | { | |
5298 | if (e->expr_type != EXPR_VARIABLE | |
5299 | || sym == e->symtree->n.sym | |
d95efb59 | 5300 | || e->symtree->n.sym->mark |
5301 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5302 | return false; |
d95efb59 | 5303 | |
1acb400a | 5304 | generate_local_decl (e->symtree->n.sym); |
5305 | return false; | |
5306 | } | |
d95efb59 | 5307 | |
1acb400a | 5308 | static void |
5309 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5310 | { | |
5311 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5312 | } |
5313 | ||
5314 | ||
f6d0e37a | 5315 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5316 | |
5317 | static void | |
5318 | generate_dependency_declarations (gfc_symbol *sym) | |
5319 | { | |
5320 | int i; | |
5321 | ||
5322 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5323 | && sym->ts.u.cl |
5324 | && sym->ts.u.cl->length | |
5325 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5326 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5327 | |
5328 | if (sym->as && sym->as->rank) | |
5329 | { | |
5330 | for (i = 0; i < sym->as->rank; i++) | |
5331 | { | |
5332 | generate_expr_decls (sym, sym->as->lower[i]); | |
5333 | generate_expr_decls (sym, sym->as->upper[i]); | |
5334 | } | |
5335 | } | |
5336 | } | |
5337 | ||
5338 | ||
4ee9c684 | 5339 | /* Generate decls for all local variables. We do this to ensure correct |
5340 | handling of expressions which only appear in the specification of | |
5341 | other functions. */ | |
5342 | ||
5343 | static void | |
5344 | generate_local_decl (gfc_symbol * sym) | |
5345 | { | |
5346 | if (sym->attr.flavor == FL_VARIABLE) | |
5347 | { | |
a961ca30 | 5348 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5349 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5350 | has_coarray_vars = true; | |
5351 | ||
d95efb59 | 5352 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5353 | generate_dependency_declarations (sym); |
d95efb59 | 5354 | |
4ee9c684 | 5355 | if (sym->attr.referenced) |
8714fc76 | 5356 | gfc_get_symbol_decl (sym); |
4acad347 | 5357 | |
5358 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5359 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5360 | { |
4acad347 | 5361 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5362 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5363 | { |
5364 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5365 | gfc_warning (OPT_Wunused_dummy_argument, |
5366 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5367 | "INTENT(OUT) but was not set", sym->name, |
5368 | &sym->declared_at); | |
48cb4748 | 5369 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5370 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5371 | gfc_warning (OPT_Wunused_dummy_argument, |
5372 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5373 | "declared INTENT(OUT) but was not set and " |
5374 | "does not have a default initializer", | |
5375 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5376 | if (sym->backend_decl != NULL_TREE) |
5377 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5378 | } |
8290d53f | 5379 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5380 | { |
4166acc7 | 5381 | gfc_warning (OPT_Wunused_dummy_argument, |
5382 | "Unused dummy argument %qs at %L", sym->name, | |
5383 | &sym->declared_at); | |
90a4a5a6 | 5384 | if (sym->backend_decl != NULL_TREE) |
5385 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5386 | } | |
7c0ca46e | 5387 | } |
4acad347 | 5388 | |
f888a3fb | 5389 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5390 | block or a namelist. */ |
36609028 | 5391 | else if (warn_unused_variable |
1dbfac29 | 5392 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5393 | { |
1dbfac29 | 5394 | if (sym->attr.use_only) |
5395 | { | |
4166acc7 | 5396 | gfc_warning (OPT_Wunused_variable, |
5397 | "Unused module variable %qs which has been " | |
1dbfac29 | 5398 | "explicitly imported at %L", sym->name, |
5399 | &sym->declared_at); | |
5400 | if (sym->backend_decl != NULL_TREE) | |
5401 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5402 | } | |
5403 | else if (!sym->attr.use_assoc) | |
5404 | { | |
99af6e70 | 5405 | /* Corner case: the symbol may be an entry point. At this point, |
5406 | it may appear to be an unused variable. Suppress warning. */ | |
5407 | bool enter = false; | |
5408 | gfc_entry_list *el; | |
5409 | ||
5410 | for (el = sym->ns->entries; el; el=el->next) | |
5411 | if (strcmp(sym->name, el->sym->name) == 0) | |
5412 | enter = true; | |
5413 | ||
5414 | if (!enter) | |
5415 | gfc_warning (OPT_Wunused_variable, | |
5416 | "Unused variable %qs declared at %L", | |
5417 | sym->name, &sym->declared_at); | |
1dbfac29 | 5418 | if (sym->backend_decl != NULL_TREE) |
5419 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5420 | } | |
90a4a5a6 | 5421 | } |
8714fc76 | 5422 | |
d4163395 | 5423 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5424 | references the length variable, so force gfc_get_symbol_decl | |
5425 | even when not referenced. If optimize > 0, it will be optimized | |
5426 | away anyway. But do this only after emitting -Wunused-parameter | |
5427 | warning if requested. */ | |
8714fc76 | 5428 | if (sym->attr.dummy && !sym->attr.referenced |
5429 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5430 | && sym->ts.u.cl->backend_decl != NULL |
fe732a9b | 5431 | && VAR_P (sym->ts.u.cl->backend_decl)) |
d4163395 | 5432 | { |
5433 | sym->attr.referenced = 1; | |
5434 | gfc_get_symbol_decl (sym); | |
5435 | } | |
76776e6d | 5436 | |
d0163401 | 5437 | /* INTENT(out) dummy arguments and result variables with allocatable |
5438 | components are reset by default and need to be set referenced to | |
5439 | generate the code for nullification and automatic lengths. */ | |
5440 | if (!sym->attr.referenced | |
8714fc76 | 5441 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5442 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5443 | && !sym->attr.pointer |
d0163401 | 5444 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5445 | || | |
5446 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5447 | { |
5448 | sym->attr.referenced = 1; | |
5449 | gfc_get_symbol_decl (sym); | |
5450 | } | |
5451 | ||
e72f979a | 5452 | /* Check for dependencies in the array specification and string |
5453 | length, adding the necessary declarations to the function. We | |
5454 | mark the symbol now, as well as in traverse_ns, to prevent | |
5455 | getting stuck in a circular dependency. */ | |
5456 | sym->mark = 1; | |
4ee9c684 | 5457 | } |
5dd246c1 | 5458 | else if (sym->attr.flavor == FL_PARAMETER) |
5459 | { | |
6ecfe89d | 5460 | if (warn_unused_parameter |
f326eb81 | 5461 | && !sym->attr.referenced) |
5462 | { | |
5463 | if (!sym->attr.use_assoc) | |
4166acc7 | 5464 | gfc_warning (OPT_Wunused_parameter, |
5465 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5466 | &sym->declared_at); |
5467 | else if (sym->attr.use_only) | |
4166acc7 | 5468 | gfc_warning (OPT_Wunused_parameter, |
5469 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5470 | "imported at %L", sym->name, &sym->declared_at); |
5471 | } | |
758c9897 | 5472 | |
5473 | if (sym->ns | |
5474 | && sym->ns->parent | |
5475 | && sym->ns->parent->code | |
5476 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5477 | { | |
5478 | if (sym->attr.referenced) | |
5479 | gfc_get_symbol_decl (sym); | |
5480 | sym->mark = 1; | |
5481 | } | |
5dd246c1 | 5482 | } |
fa7b6574 | 5483 | else if (sym->attr.flavor == FL_PROCEDURE) |
5484 | { | |
5485 | /* TODO: move to the appropriate place in resolve.c. */ | |
5486 | if (warn_return_type | |
5487 | && sym->attr.function | |
5488 | && sym->result | |
5489 | && sym != sym->result | |
5490 | && !sym->result->attr.referenced | |
5491 | && !sym->attr.use_assoc | |
5492 | && sym->attr.if_source != IFSRC_IFBODY) | |
5493 | { | |
4166acc7 | 5494 | gfc_warning (OPT_Wreturn_type, |
5495 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5496 | "%L not set", sym->result->name, sym->name, |
5497 | &sym->result->declared_at); | |
5498 | ||
5499 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5500 | sym->result->mark = 1; |
fa7b6574 | 5501 | } |
5502 | } | |
c5d33754 | 5503 | |
19ba2ad8 | 5504 | if (sym->attr.dummy == 1) |
5505 | { | |
5506 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5507 | procedures if they are passed by value. The tree type for them will | |
5508 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5509 | what C would do with characters passed by-value. The value attribute | |
5510 | implies the dummy is a scalar. */ | |
5511 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5512 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5513 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5514 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5515 | |
5516 | /* Unused procedure passed as dummy argument. */ | |
5517 | if (sym->attr.flavor == FL_PROCEDURE) | |
5518 | { | |
5519 | if (!sym->attr.referenced) | |
5520 | { | |
8290d53f | 5521 | if (warn_unused_dummy_argument) |
4166acc7 | 5522 | gfc_warning (OPT_Wunused_dummy_argument, |
5523 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5524 | &sym->declared_at); |
fc6338c7 | 5525 | } |
5526 | ||
5527 | /* Silence bogus "unused parameter" warnings from the | |
5528 | middle end. */ | |
5529 | if (sym->backend_decl != NULL_TREE) | |
5530 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5531 | } | |
19ba2ad8 | 5532 | } |
5533 | ||
c5d33754 | 5534 | /* Make sure we convert the types of the derived types from iso_c_binding |
5535 | into (void *). */ | |
5536 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5537 | && sym->ts.type == BT_DERIVED) | |
5538 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5539 | } |
5540 | ||
c40a5c1b | 5541 | |
5542 | static void | |
5543 | generate_local_nml_decl (gfc_symbol * sym) | |
5544 | { | |
5545 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5546 | { | |
5547 | tree decl = generate_namelist_decl (sym); | |
5548 | pushdecl (decl); | |
5549 | } | |
5550 | } | |
5551 | ||
5552 | ||
4ee9c684 | 5553 | static void |
5554 | generate_local_vars (gfc_namespace * ns) | |
5555 | { | |
5556 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5557 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5558 | } |
5559 | ||
5560 | ||
1b716045 | 5561 | /* Generate a switch statement to jump to the correct entry point. Also |
5562 | creates the label decls for the entry points. */ | |
4ee9c684 | 5563 | |
1b716045 | 5564 | static tree |
5565 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5566 | { |
1b716045 | 5567 | stmtblock_t block; |
5568 | tree label; | |
5569 | tree tmp; | |
5570 | tree val; | |
4ee9c684 | 5571 | |
1b716045 | 5572 | gfc_init_block (&block); |
5573 | for (; el; el = el->next) | |
5574 | { | |
5575 | /* Add the case label. */ | |
b797d6d3 | 5576 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5577 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5578 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5579 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5580 | |
1b716045 | 5581 | /* And jump to the actual entry point. */ |
5582 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5583 | tmp = build1_v (GOTO_EXPR, label); |
5584 | gfc_add_expr_to_block (&block, tmp); | |
5585 | ||
5586 | /* Save the label decl. */ | |
5587 | el->label = label; | |
5588 | } | |
5589 | tmp = gfc_finish_block (&block); | |
5590 | /* The first argument selects the entry point. */ | |
5591 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 5592 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
5593 | val, tmp, NULL_TREE); | |
1b716045 | 5594 | return tmp; |
4ee9c684 | 5595 | } |
5596 | ||
6374121b | 5597 | |
a4abf8a0 | 5598 | /* Add code to string lengths of actual arguments passed to a function against |
5599 | the expected lengths of the dummy arguments. */ | |
5600 | ||
5601 | static void | |
5602 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5603 | { | |
5604 | gfc_formal_arglist *formal; | |
5605 | ||
6777213b | 5606 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5607 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5608 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5609 | { |
5610 | enum tree_code comparison; | |
5611 | tree cond; | |
5612 | tree argname; | |
5613 | gfc_symbol *fsym; | |
5614 | gfc_charlen *cl; | |
5615 | const char *message; | |
5616 | ||
5617 | fsym = formal->sym; | |
eeebe20b | 5618 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5619 | |
5620 | gcc_assert (cl); | |
5621 | gcc_assert (cl->passed_length != NULL_TREE); | |
5622 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5623 | ||
5624 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5625 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5626 | that the actual string length is *at least* the expected one. |
5627 | Sequence association allows for a mismatch of the string length | |
5628 | if the actual argument is (part of) an array, but only if the | |
5629 | dummy argument is an array. (See "Sequence association" in | |
5630 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5631 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5632 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5633 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5634 | { |
5635 | comparison = NE_EXPR; | |
5636 | message = _("Actual string length does not match the declared one" | |
5637 | " for dummy argument '%s' (%ld/%ld)"); | |
5638 | } | |
be4be771 | 5639 | else if (fsym->as && fsym->as->rank != 0) |
5640 | continue; | |
a4abf8a0 | 5641 | else |
5642 | { | |
5643 | comparison = LT_EXPR; | |
5644 | message = _("Actual string length is shorter than the declared one" | |
5645 | " for dummy argument '%s' (%ld/%ld)"); | |
5646 | } | |
5647 | ||
5648 | /* Build the condition. For optional arguments, an actual length | |
5649 | of 0 is also acceptable if the associated string is NULL, which | |
5650 | means the argument was not passed. */ | |
fd779e1d | 5651 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
5652 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 5653 | if (fsym->attr.optional) |
5654 | { | |
5655 | tree not_absent; | |
5656 | tree not_0length; | |
5657 | tree absent_failed; | |
5658 | ||
fd779e1d | 5659 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
5660 | boolean_type_node, | |
5661 | cl->passed_length, | |
385f3f36 | 5662 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5663 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5664 | fsym->attr.referenced = 1; | |
5665 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5666 | |
fd779e1d | 5667 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
5668 | boolean_type_node, not_0length, | |
5669 | not_absent); | |
a4abf8a0 | 5670 | |
fd779e1d | 5671 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
5672 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 5673 | } |
5674 | ||
5675 | /* Build the runtime check. */ | |
5676 | argname = gfc_build_cstring_const (fsym->name); | |
5677 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5678 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5679 | message, argname, | |
5680 | fold_convert (long_integer_type_node, | |
5681 | cl->passed_length), | |
5682 | fold_convert (long_integer_type_node, | |
5683 | cl->backend_decl)); | |
5684 | } | |
5685 | } | |
5686 | ||
5687 | ||
7257a5d2 | 5688 | static void |
5689 | create_main_function (tree fndecl) | |
5690 | { | |
43702da6 | 5691 | tree old_context; |
7257a5d2 | 5692 | tree ftn_main; |
5693 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5694 | stmtblock_t body; | |
5695 | ||
43702da6 | 5696 | old_context = current_function_decl; |
5697 | ||
5698 | if (old_context) | |
5699 | { | |
5700 | push_function_context (); | |
5701 | saved_parent_function_decls = saved_function_decls; | |
5702 | saved_function_decls = NULL_TREE; | |
5703 | } | |
5704 | ||
7257a5d2 | 5705 | /* main() function must be declared with global scope. */ |
5706 | gcc_assert (current_function_decl == NULL_TREE); | |
5707 | ||
5708 | /* Declare the function. */ | |
5709 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5710 | build_pointer_type (pchar_type_node), | |
5711 | NULL_TREE); | |
0509d0ee | 5712 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5713 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5714 | main_identifier_node, tmp); | |
7257a5d2 | 5715 | DECL_EXTERNAL (ftn_main) = 0; |
5716 | TREE_PUBLIC (ftn_main) = 1; | |
5717 | TREE_STATIC (ftn_main) = 1; | |
5718 | DECL_ATTRIBUTES (ftn_main) | |
5719 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5720 | ||
5721 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5722 | result_decl = build_decl (input_location, |
5723 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5724 | DECL_ARTIFICIAL (result_decl) = 1; |
5725 | DECL_IGNORED_P (result_decl) = 1; | |
5726 | DECL_CONTEXT (result_decl) = ftn_main; | |
5727 | DECL_RESULT (ftn_main) = result_decl; | |
5728 | ||
5729 | pushdecl (ftn_main); | |
5730 | ||
5731 | /* Get the arguments. */ | |
5732 | ||
5733 | arglist = NULL_TREE; | |
5734 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5735 | ||
5736 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5737 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5738 | DECL_CONTEXT (argc) = ftn_main; |
5739 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5740 | TREE_READONLY (argc) = 1; | |
5741 | gfc_finish_decl (argc); | |
5742 | arglist = chainon (arglist, argc); | |
5743 | ||
5744 | typelist = TREE_CHAIN (typelist); | |
5745 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5746 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5747 | DECL_CONTEXT (argv) = ftn_main; |
5748 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5749 | TREE_READONLY (argv) = 1; | |
5750 | DECL_BY_REFERENCE (argv) = 1; | |
5751 | gfc_finish_decl (argv); | |
5752 | arglist = chainon (arglist, argv); | |
5753 | ||
5754 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5755 | current_function_decl = ftn_main; | |
5756 | announce_function (ftn_main); | |
5757 | ||
5758 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5759 | make_decl_rtl (ftn_main); | |
00cf115c | 5760 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5761 | pushlevel (); |
7257a5d2 | 5762 | |
5763 | gfc_init_block (&body); | |
5764 | ||
293d72e0 | 5765 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5766 | |
d44f2f7c | 5767 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5768 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5769 | { |
5770 | tree pint_type, pppchar_type; | |
5771 | pint_type = build_pointer_type (integer_type_node); | |
5772 | pppchar_type | |
5773 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5774 | ||
d44f2f7c | 5775 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5776 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5777 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5778 | gfc_add_expr_to_block (&body, tmp); |
5779 | } | |
5780 | ||
7257a5d2 | 5781 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5782 | TREE_USED (argc) = 1; |
5783 | TREE_USED (argv) = 1; | |
389dd41b | 5784 | tmp = build_call_expr_loc (input_location, |
5785 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5786 | gfc_add_expr_to_block (&body, tmp); |
5787 | ||
5788 | /* Add a call to set_options to set up the runtime library Fortran | |
5789 | language standard parameters. */ | |
5790 | { | |
5791 | tree array_type, array, var; | |
f1f41a6c | 5792 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5793 | |
5794 | /* Passing a new option to the library requires four modifications: | |
5795 | + add it to the tree_cons list below | |
5796 | + change the array size in the call to build_array_type | |
5797 | + change the first argument to the library call | |
5798 | gfor_fndecl_set_options | |
5799 | + modify the library (runtime/compile_options.c)! */ | |
5800 | ||
06f13dc1 | 5801 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5802 | build_int_cst (integer_type_node, | |
5803 | gfc_option.warn_std)); | |
5804 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5805 | build_int_cst (integer_type_node, | |
5806 | gfc_option.allow_std)); | |
5807 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5808 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5809 | /* TODO: This is the old -fdump-core option, which is unused but |
5810 | passed due to ABI compatibility; remove when bumping the | |
5811 | library ABI. */ | |
06f13dc1 | 5812 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5813 | build_int_cst (integer_type_node, | |
b2130263 | 5814 | 0)); |
06f13dc1 | 5815 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5816 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 5817 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5818 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 5819 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5820 | build_int_cst (integer_type_node, | |
5821 | (gfc_option.rtcheck | |
5822 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5823 | /* TODO: This is the -frange-check option, which no longer affects |
5824 | library behavior; when bumping the library ABI this slot can be | |
5825 | reused for something else. As it is the last element in the | |
293d72e0 | 5826 | array, we can instead leave it out altogether. */ |
553e7cef | 5827 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5828 | build_int_cst (integer_type_node, 0)); | |
06f13dc1 | 5829 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5830 | build_int_cst (integer_type_node, | |
553e7cef | 5831 | gfc_option.fpe_summary)); |
7257a5d2 | 5832 | |
5833 | array_type = build_array_type (integer_type_node, | |
553e7cef | 5834 | build_index_type (size_int (8))); |
06f13dc1 | 5835 | array = build_constructor (array_type, v); |
7257a5d2 | 5836 | TREE_CONSTANT (array) = 1; |
5837 | TREE_STATIC (array) = 1; | |
5838 | ||
5839 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 5840 | var = build_decl (input_location, VAR_DECL, |
5841 | create_tmp_var_name ("options"), | |
5842 | array_type); | |
5843 | DECL_ARTIFICIAL (var) = 1; | |
5844 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 5845 | TREE_CONSTANT (var) = 1; |
5846 | TREE_STATIC (var) = 1; | |
5847 | TREE_READONLY (var) = 1; | |
5848 | DECL_INITIAL (var) = array; | |
bf77f8ee | 5849 | pushdecl (var); |
7257a5d2 | 5850 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
5851 | ||
389dd41b | 5852 | tmp = build_call_expr_loc (input_location, |
5853 | gfor_fndecl_set_options, 2, | |
553e7cef | 5854 | build_int_cst (integer_type_node, 9), var); |
7257a5d2 | 5855 | gfc_add_expr_to_block (&body, tmp); |
5856 | } | |
5857 | ||
5858 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5859 | the library will raise a FPE when needed. */ | |
5860 | if (gfc_option.fpe != 0) | |
5861 | { | |
389dd41b | 5862 | tmp = build_call_expr_loc (input_location, |
5863 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5864 | build_int_cst (integer_type_node, |
5865 | gfc_option.fpe)); | |
5866 | gfc_add_expr_to_block (&body, tmp); | |
5867 | } | |
5868 | ||
5869 | /* If this is the main program and an -fconvert option was provided, | |
5870 | add a call to set_convert. */ | |
5871 | ||
4fe73152 | 5872 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 5873 | { |
389dd41b | 5874 | tmp = build_call_expr_loc (input_location, |
5875 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 5876 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 5877 | gfc_add_expr_to_block (&body, tmp); |
5878 | } | |
5879 | ||
5880 | /* If this is the main program and an -frecord-marker option was provided, | |
5881 | add a call to set_record_marker. */ | |
5882 | ||
eb106faf | 5883 | if (flag_record_marker != 0) |
7257a5d2 | 5884 | { |
389dd41b | 5885 | tmp = build_call_expr_loc (input_location, |
5886 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5887 | build_int_cst (integer_type_node, |
eb106faf | 5888 | flag_record_marker)); |
7257a5d2 | 5889 | gfc_add_expr_to_block (&body, tmp); |
5890 | } | |
5891 | ||
eb106faf | 5892 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 5893 | { |
389dd41b | 5894 | tmp = build_call_expr_loc (input_location, |
5895 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5896 | build_int_cst (integer_type_node, |
eb106faf | 5897 | flag_max_subrecord_length)); |
7257a5d2 | 5898 | gfc_add_expr_to_block (&body, tmp); |
5899 | } | |
5900 | ||
5901 | /* Call MAIN__(). */ | |
389dd41b | 5902 | tmp = build_call_expr_loc (input_location, |
5903 | fndecl, 0); | |
7257a5d2 | 5904 | gfc_add_expr_to_block (&body, tmp); |
5905 | ||
43702da6 | 5906 | /* Mark MAIN__ as used. */ |
5907 | TREE_USED (fndecl) = 1; | |
5908 | ||
70b5944a | 5909 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 5910 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 5911 | { |
70b5944a | 5912 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
5913 | gfc_add_expr_to_block (&body, tmp); | |
5914 | } | |
5915 | ||
7257a5d2 | 5916 | /* "return 0". */ |
fd779e1d | 5917 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5918 | DECL_RESULT (ftn_main), | |
5919 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5920 | tmp = build1_v (RETURN_EXPR, tmp); |
5921 | gfc_add_expr_to_block (&body, tmp); | |
5922 | ||
5923 | ||
5924 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5925 | decl = getdecls (); | |
5926 | ||
5927 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5928 | poplevel (1, 1); |
7257a5d2 | 5929 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5930 | ||
5931 | DECL_SAVED_TREE (ftn_main) | |
5932 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5933 | DECL_INITIAL (ftn_main)); | |
5934 | ||
5935 | /* Output the GENERIC tree. */ | |
5936 | dump_function (TDI_original, ftn_main); | |
5937 | ||
35ee1c66 | 5938 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 5939 | |
5940 | if (old_context) | |
5941 | { | |
5942 | pop_function_context (); | |
5943 | saved_function_decls = saved_parent_function_decls; | |
5944 | } | |
5945 | current_function_decl = old_context; | |
7257a5d2 | 5946 | } |
5947 | ||
5948 | ||
89ac8ba1 | 5949 | /* Get the result expression for a procedure. */ |
5950 | ||
5951 | static tree | |
5952 | get_proc_result (gfc_symbol* sym) | |
5953 | { | |
5954 | if (sym->attr.subroutine || sym == sym->result) | |
5955 | { | |
5956 | if (current_fake_result_decl != NULL) | |
5957 | return TREE_VALUE (current_fake_result_decl); | |
5958 | ||
5959 | return NULL_TREE; | |
5960 | } | |
5961 | ||
5962 | return sym->result->backend_decl; | |
5963 | } | |
5964 | ||
5965 | ||
5966 | /* Generate an appropriate return-statement for a procedure. */ | |
5967 | ||
5968 | tree | |
5969 | gfc_generate_return (void) | |
5970 | { | |
5971 | gfc_symbol* sym; | |
5972 | tree result; | |
5973 | tree fndecl; | |
5974 | ||
5975 | sym = current_procedure_symbol; | |
5976 | fndecl = sym->backend_decl; | |
5977 | ||
5978 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5979 | result = NULL_TREE; | |
5980 | else | |
5981 | { | |
5982 | result = get_proc_result (sym); | |
5983 | ||
5984 | /* Set the return value to the dummy result variable. The | |
5985 | types may be different for scalar default REAL functions | |
5986 | with -ff2c, therefore we have to convert. */ | |
5987 | if (result != NULL_TREE) | |
5988 | { | |
5989 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5990 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5991 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5992 | result); | |
89ac8ba1 | 5993 | } |
5994 | } | |
5995 | ||
5996 | return build1_v (RETURN_EXPR, result); | |
5997 | } | |
5998 | ||
5999 | ||
d566c3e0 | 6000 | static void |
6001 | is_from_ieee_module (gfc_symbol *sym) | |
6002 | { | |
6003 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6004 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6005 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6006 | seen_ieee_symbol = 1; | |
6007 | } | |
6008 | ||
6009 | ||
6010 | static int | |
6011 | is_ieee_module_used (gfc_namespace *ns) | |
6012 | { | |
6013 | seen_ieee_symbol = 0; | |
6014 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6015 | return seen_ieee_symbol; | |
6016 | } | |
6017 | ||
6018 | ||
01d728a4 | 6019 | static gfc_omp_clauses *module_oacc_clauses; |
6020 | ||
6021 | ||
6022 | static void | |
6023 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6024 | { | |
6025 | gfc_omp_namelist *n; | |
6026 | ||
6027 | n = gfc_get_omp_namelist (); | |
6028 | n->sym = sym; | |
6029 | n->u.map_op = map_op; | |
6030 | ||
6031 | if (!module_oacc_clauses) | |
6032 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6033 | ||
6034 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6035 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6036 | ||
6037 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6038 | } | |
6039 | ||
6040 | ||
6041 | static void | |
6042 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6043 | { | |
6044 | if (sym->attr.use_assoc) | |
6045 | { | |
6046 | gfc_omp_map_op map_op; | |
6047 | ||
6048 | if (sym->attr.oacc_declare_create) | |
6049 | map_op = OMP_MAP_FORCE_ALLOC; | |
6050 | ||
6051 | if (sym->attr.oacc_declare_copyin) | |
6052 | map_op = OMP_MAP_FORCE_TO; | |
6053 | ||
6054 | if (sym->attr.oacc_declare_deviceptr) | |
6055 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6056 | ||
6057 | if (sym->attr.oacc_declare_device_resident) | |
6058 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6059 | ||
6060 | if (sym->attr.oacc_declare_create | |
6061 | || sym->attr.oacc_declare_copyin | |
6062 | || sym->attr.oacc_declare_deviceptr | |
6063 | || sym->attr.oacc_declare_device_resident) | |
6064 | { | |
6065 | sym->attr.referenced = 1; | |
6066 | add_clause (sym, map_op); | |
6067 | } | |
6068 | } | |
6069 | } | |
6070 | ||
6071 | ||
6072 | void | |
6073 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6074 | { | |
6075 | gfc_code *code; | |
6076 | gfc_oacc_declare *oc; | |
6077 | locus where = gfc_current_locus; | |
6078 | gfc_omp_clauses *omp_clauses = NULL; | |
6079 | gfc_omp_namelist *n, *p; | |
6080 | ||
6081 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6082 | ||
6083 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6084 | { | |
6085 | gfc_oacc_declare *new_oc; | |
6086 | ||
6087 | new_oc = gfc_get_oacc_declare (); | |
6088 | new_oc->next = ns->oacc_declare; | |
6089 | new_oc->clauses = module_oacc_clauses; | |
6090 | ||
6091 | ns->oacc_declare = new_oc; | |
6092 | module_oacc_clauses = NULL; | |
6093 | } | |
6094 | ||
6095 | if (!ns->oacc_declare) | |
6096 | return; | |
6097 | ||
6098 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6099 | { | |
6100 | if (oc->module_var) | |
6101 | continue; | |
6102 | ||
6103 | if (block) | |
6104 | gfc_error ("Sorry, $!ACC DECLARE at %L is not allowed " | |
6105 | "in BLOCK construct", &oc->loc); | |
6106 | ||
6107 | ||
6108 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6109 | { | |
6110 | if (omp_clauses == NULL) | |
6111 | { | |
6112 | omp_clauses = oc->clauses; | |
6113 | continue; | |
6114 | } | |
6115 | ||
6116 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6117 | ; | |
6118 | ||
6119 | gcc_assert (p->next == NULL); | |
6120 | ||
6121 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6122 | omp_clauses = oc->clauses; | |
6123 | } | |
6124 | } | |
6125 | ||
6126 | if (!omp_clauses) | |
6127 | return; | |
6128 | ||
6129 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6130 | { | |
6131 | switch (n->u.map_op) | |
6132 | { | |
6133 | case OMP_MAP_DEVICE_RESIDENT: | |
6134 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6135 | break; | |
6136 | ||
6137 | default: | |
6138 | break; | |
6139 | } | |
6140 | } | |
6141 | ||
6142 | code = XCNEW (gfc_code); | |
6143 | code->op = EXEC_OACC_DECLARE; | |
6144 | code->loc = where; | |
6145 | ||
6146 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6147 | code->ext.oacc_declare->clauses = omp_clauses; | |
6148 | ||
6149 | code->block = XCNEW (gfc_code); | |
6150 | code->block->op = EXEC_OACC_DECLARE; | |
6151 | code->block->loc = where; | |
6152 | ||
6153 | if (ns->code) | |
6154 | code->block->next = ns->code; | |
6155 | ||
6156 | ns->code = code; | |
6157 | ||
6158 | return; | |
6159 | } | |
6160 | ||
6161 | ||
4ee9c684 | 6162 | /* Generate code for a function. */ |
6163 | ||
6164 | void | |
6165 | gfc_generate_function_code (gfc_namespace * ns) | |
6166 | { | |
6167 | tree fndecl; | |
6168 | tree old_context; | |
6169 | tree decl; | |
6170 | tree tmp; | |
d566c3e0 | 6171 | tree fpstate = NULL_TREE; |
89ac8ba1 | 6172 | stmtblock_t init, cleanup; |
4ee9c684 | 6173 | stmtblock_t body; |
89ac8ba1 | 6174 | gfc_wrapped_block try_block; |
5fa0fdc2 | 6175 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 6176 | gfc_symbol *sym; |
89ac8ba1 | 6177 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 6178 | int rank, ieee; |
e50e62f5 | 6179 | bool is_recursive; |
4ee9c684 | 6180 | |
6181 | sym = ns->proc_name; | |
89ac8ba1 | 6182 | previous_procedure_symbol = current_procedure_symbol; |
6183 | current_procedure_symbol = sym; | |
1b716045 | 6184 | |
8b7e5587 | 6185 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6186 | lost or worse. */ | |
4ee9c684 | 6187 | sym->tlink = sym; |
6188 | ||
6189 | /* Create the declaration for functions with global scope. */ | |
6190 | if (!sym->backend_decl) | |
d896f9b3 | 6191 | gfc_create_function_decl (ns, false); |
4ee9c684 | 6192 | |
6193 | fndecl = sym->backend_decl; | |
6194 | old_context = current_function_decl; | |
6195 | ||
6196 | if (old_context) | |
6197 | { | |
6198 | push_function_context (); | |
6199 | saved_parent_function_decls = saved_function_decls; | |
6200 | saved_function_decls = NULL_TREE; | |
6201 | } | |
6202 | ||
1b716045 | 6203 | trans_function_start (sym); |
4ee9c684 | 6204 | |
89ac8ba1 | 6205 | gfc_init_block (&init); |
4ee9c684 | 6206 | |
c6871095 | 6207 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6208 | { | |
6209 | /* Copy length backend_decls to all entry point result | |
6210 | symbols. */ | |
6211 | gfc_entry_list *el; | |
6212 | tree backend_decl; | |
6213 | ||
eeebe20b | 6214 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6215 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6216 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6217 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6218 | } |
6219 | ||
4ee9c684 | 6220 | /* Translate COMMON blocks. */ |
6221 | gfc_trans_common (ns); | |
6222 | ||
c750cc52 | 6223 | /* Null the parent fake result declaration if this namespace is |
6224 | a module function or an external procedures. */ | |
6225 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6226 | || ns->parent == NULL) | |
6227 | parent_fake_result_decl = NULL_TREE; | |
6228 | ||
2b685f8e | 6229 | gfc_generate_contained_functions (ns); |
6230 | ||
9579733e | 6231 | nonlocal_dummy_decls = NULL; |
6232 | nonlocal_dummy_decl_pset = NULL; | |
6233 | ||
a961ca30 | 6234 | has_coarray_vars = false; |
4ee9c684 | 6235 | generate_local_vars (ns); |
5b11d932 | 6236 | |
4fe73152 | 6237 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6238 | generate_coarray_init (ns); |
6239 | ||
c750cc52 | 6240 | /* Keep the parent fake result declaration in module functions |
6241 | or external procedures. */ | |
6242 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6243 | || ns->parent == NULL) | |
6244 | current_fake_result_decl = parent_fake_result_decl; | |
6245 | else | |
6246 | current_fake_result_decl = NULL_TREE; | |
6247 | ||
89ac8ba1 | 6248 | is_recursive = sym->attr.recursive |
6249 | || (sym->attr.entry_master | |
6250 | && sym->ns->entries->sym->attr.recursive); | |
6251 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6252 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6253 | { |
6254 | char * msg; | |
6255 | ||
87fda26c | 6256 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6257 | sym->name); | |
89ac8ba1 | 6258 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); |
6259 | TREE_STATIC (recurcheckvar) = 1; | |
6260 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
6261 | gfc_add_expr_to_block (&init, recurcheckvar); | |
6262 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6263 | &sym->declared_at, msg); | |
6264 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 6265 | free (msg); |
89ac8ba1 | 6266 | } |
4ee9c684 | 6267 | |
d566c3e0 | 6268 | /* Check if an IEEE module is used in the procedure. If so, save |
6269 | the floating point state. */ | |
6270 | ieee = is_ieee_module_used (ns); | |
6271 | if (ieee) | |
d7333535 | 6272 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6273 | |
4ee9c684 | 6274 | /* Now generate the code for the body of this function. */ |
6275 | gfc_init_block (&body); | |
6276 | ||
6277 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6278 | && sym->attr.subroutine) |
4ee9c684 | 6279 | { |
6280 | tree alternate_return; | |
c750cc52 | 6281 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6282 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6283 | } |
6284 | ||
1b716045 | 6285 | if (ns->entries) |
6286 | { | |
6287 | /* Jump to the correct entry point. */ | |
6288 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6289 | gfc_add_expr_to_block (&body, tmp); | |
6290 | } | |
6291 | ||
a4abf8a0 | 6292 | /* If bounds-checking is enabled, generate code to check passed in actual |
6293 | arguments against the expected dummy argument attributes (e.g. string | |
6294 | lengths). */ | |
c1630d65 | 6295 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6296 | add_argument_checking (&body, sym); |
6297 | ||
01d728a4 | 6298 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6299 | |
4ee9c684 | 6300 | tmp = gfc_trans_code (ns->code); |
6301 | gfc_add_expr_to_block (&body, tmp); | |
6302 | ||
1caa6ab1 | 6303 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6304 | || (sym->result && sym->result != sym | |
6305 | && sym->result->ts.type == BT_DERIVED | |
6306 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6307 | { |
1caa6ab1 | 6308 | bool artificial_result_decl = false; |
89ac8ba1 | 6309 | tree result = get_proc_result (sym); |
1caa6ab1 | 6310 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6311 | ||
6312 | /* Make sure that a function returning an object with | |
6313 | alloc/pointer_components always has a result, where at least | |
6314 | the allocatable/pointer components are set to zero. */ | |
6315 | if (result == NULL_TREE && sym->attr.function | |
6316 | && ((sym->result->ts.type == BT_DERIVED | |
6317 | && (sym->attr.allocatable | |
6318 | || sym->attr.pointer | |
6319 | || sym->result->ts.u.derived->attr.alloc_comp | |
6320 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6321 | || (sym->result->ts.type == BT_CLASS | |
6322 | && (CLASS_DATA (sym)->attr.allocatable | |
6323 | || CLASS_DATA (sym)->attr.class_pointer | |
6324 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6325 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6326 | { | |
6327 | artificial_result_decl = true; | |
6328 | result = gfc_get_fake_result_decl (sym, 0); | |
6329 | } | |
4ee9c684 | 6330 | |
42766cb3 | 6331 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6332 | { |
deb7edfc | 6333 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6334 | && sym->result == sym) | |
6335 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6336 | null_pointer_node)); | |
42766cb3 | 6337 | else if (sym->ts.type == BT_CLASS |
6338 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6339 | && CLASS_DATA (sym)->attr.dimension == 0 |
6340 | && sym->result == sym) | |
42766cb3 | 6341 | { |
6342 | tmp = CLASS_DATA (sym)->backend_decl; | |
6343 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6344 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6345 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6346 | null_pointer_node)); | |
6347 | } | |
deb7edfc | 6348 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6349 | && !sym->attr.allocatable) |
53169279 | 6350 | { |
1caa6ab1 | 6351 | gfc_expr *init_exp; |
6352 | /* Arrays are not initialized using the default initializer of | |
6353 | their elements. Therefore only check if a default | |
6354 | initializer is available when the result is scalar. */ | |
36d310d0 | 6355 | init_exp = rsym->as ? NULL |
6356 | : gfc_generate_initializer (&rsym->ts, true); | |
1caa6ab1 | 6357 | if (init_exp) |
6358 | { | |
6359 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6360 | gfc_free_expr (init_exp); | |
6361 | gfc_add_expr_to_block (&init, tmp); | |
6362 | } | |
6363 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6364 | { | |
6365 | rank = rsym->as ? rsym->as->rank : 0; | |
6366 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6367 | rank); | |
6368 | gfc_prepend_expr_to_block (&body, tmp); | |
6369 | } | |
53169279 | 6370 | } |
5176859a | 6371 | } |
e50e62f5 | 6372 | |
1caa6ab1 | 6373 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6374 | { |
6375 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 6376 | if (warn_return_type && sym == sym->result) |
4166acc7 | 6377 | gfc_warning (OPT_Wreturn_type, |
6378 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6379 | sym->name, &sym->declared_at); |
90a4a5a6 | 6380 | if (warn_return_type) |
6381 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 6382 | } |
1caa6ab1 | 6383 | if (result != NULL_TREE) |
89ac8ba1 | 6384 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6385 | } |
89ac8ba1 | 6386 | |
6387 | gfc_init_block (&cleanup); | |
6388 | ||
6389 | /* Reset recursion-check variable. */ | |
6390 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6391 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6392 | { |
89ac8ba1 | 6393 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
6394 | recurcheckvar = NULL; | |
e50e62f5 | 6395 | } |
2294b616 | 6396 | |
d566c3e0 | 6397 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6398 | if (ieee) | |
d7333535 | 6399 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6400 | |
89ac8ba1 | 6401 | /* Finish the function body and add init and cleanup code. */ |
6402 | tmp = gfc_finish_block (&body); | |
6403 | gfc_start_wrapped_block (&try_block, tmp); | |
6404 | /* Add code to create and cleanup arrays. */ | |
6405 | gfc_trans_deferred_vars (sym, &try_block); | |
6406 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6407 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6408 | |
6409 | /* Add all the decls we created during processing. */ | |
267f3c67 | 6410 | decl = nreverse (saved_function_decls); |
4ee9c684 | 6411 | while (decl) |
6412 | { | |
6413 | tree next; | |
6414 | ||
1767a056 | 6415 | next = DECL_CHAIN (decl); |
6416 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6417 | pushdecl (decl); |
4ee9c684 | 6418 | decl = next; |
6419 | } | |
6420 | saved_function_decls = NULL_TREE; | |
6421 | ||
89ac8ba1 | 6422 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6423 | decl = getdecls (); |
4ee9c684 | 6424 | |
6425 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6426 | poplevel (1, 1); |
4ee9c684 | 6427 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6428 | ||
e5004242 | 6429 | DECL_SAVED_TREE (fndecl) |
6430 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6431 | DECL_INITIAL (fndecl)); | |
6432 | ||
9579733e | 6433 | if (nonlocal_dummy_decls) |
6434 | { | |
6435 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6436 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
431205b7 | 6437 | delete nonlocal_dummy_decl_pset; |
9579733e | 6438 | nonlocal_dummy_decls = NULL; |
6439 | nonlocal_dummy_decl_pset = NULL; | |
6440 | } | |
6441 | ||
4ee9c684 | 6442 | /* Output the GENERIC tree. */ |
6443 | dump_function (TDI_original, fndecl); | |
6444 | ||
6445 | /* Store the end of the function, so that we get good line number | |
6446 | info for the epilogue. */ | |
6447 | cfun->function_end_locus = input_location; | |
6448 | ||
6449 | /* We're leaving the context of this function, so zap cfun. | |
6450 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6451 | tree_rest_of_compilation. */ | |
87d4aa85 | 6452 | set_cfun (NULL); |
4ee9c684 | 6453 | |
6454 | if (old_context) | |
6455 | { | |
6456 | pop_function_context (); | |
6457 | saved_function_decls = saved_parent_function_decls; | |
6458 | } | |
6459 | current_function_decl = old_context; | |
6460 | ||
1f7747bd | 6461 | if (decl_function_context (fndecl)) |
6462 | { | |
6463 | /* Register this function with cgraph just far enough to get it | |
6464 | added to our parent's nested function list. | |
6465 | If there are static coarrays in this function, the nested _caf_init | |
6466 | function has already called cgraph_create_node, which also created | |
6467 | the cgraph node for this function. */ | |
4fe73152 | 6468 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
0d565f19 | 6469 | (void) cgraph_node::get_create (fndecl); |
1f7747bd | 6470 | } |
4ee9c684 | 6471 | else |
35ee1c66 | 6472 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6473 | |
6474 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6475 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6476 | |
6477 | if (sym->attr.is_main_program) | |
6478 | create_main_function (fndecl); | |
89ac8ba1 | 6479 | |
6480 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6481 | } |
6482 | ||
7257a5d2 | 6483 | |
4ee9c684 | 6484 | void |
6485 | gfc_generate_constructors (void) | |
6486 | { | |
22d678e8 | 6487 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6488 | #if 0 |
6489 | tree fnname; | |
6490 | tree type; | |
6491 | tree fndecl; | |
6492 | tree decl; | |
6493 | tree tmp; | |
6494 | ||
6495 | if (gfc_static_ctors == NULL_TREE) | |
6496 | return; | |
6497 | ||
db85cc4f | 6498 | fnname = get_file_function_name ("I"); |
e1036019 | 6499 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6500 | |
e60a6f7b | 6501 | fndecl = build_decl (input_location, |
6502 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6503 | TREE_PUBLIC (fndecl) = 1; |
6504 | ||
e60a6f7b | 6505 | decl = build_decl (input_location, |
6506 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6507 | DECL_ARTIFICIAL (decl) = 1; |
6508 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6509 | DECL_CONTEXT (decl) = fndecl; |
6510 | DECL_RESULT (fndecl) = decl; | |
6511 | ||
6512 | pushdecl (fndecl); | |
6513 | ||
6514 | current_function_decl = fndecl; | |
6515 | ||
b2c4af5e | 6516 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6517 | |
b2c4af5e | 6518 | make_decl_rtl (fndecl); |
4ee9c684 | 6519 | |
00cf115c | 6520 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6521 | |
cde2be84 | 6522 | pushlevel (); |
4ee9c684 | 6523 | |
6524 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6525 | { | |
389dd41b | 6526 | tmp = build_call_expr_loc (input_location, |
6527 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6528 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6529 | } |
6530 | ||
e5004242 | 6531 | decl = getdecls (); |
cde2be84 | 6532 | poplevel (1, 1); |
4ee9c684 | 6533 | |
6534 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6535 | DECL_SAVED_TREE (fndecl) |
6536 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6537 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6538 | |
6539 | free_after_parsing (cfun); | |
6540 | free_after_compilation (cfun); | |
6541 | ||
6148a911 | 6542 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6543 | |
6544 | current_function_decl = NULL_TREE; | |
6545 | #endif | |
6546 | } | |
6547 | ||
9ec7c303 | 6548 | /* Translates a BLOCK DATA program unit. This means emitting the |
6549 | commons contained therein plus their initializations. We also emit | |
6550 | a globally visible symbol to make sure that each BLOCK DATA program | |
6551 | unit remains unique. */ | |
6552 | ||
6553 | void | |
6554 | gfc_generate_block_data (gfc_namespace * ns) | |
6555 | { | |
6556 | tree decl; | |
6557 | tree id; | |
6558 | ||
b31f705b | 6559 | /* Tell the backend the source location of the block data. */ |
6560 | if (ns->proc_name) | |
6561 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6562 | else | |
6563 | gfc_set_backend_locus (&gfc_current_locus); | |
6564 | ||
6565 | /* Process the DATA statements. */ | |
9ec7c303 | 6566 | gfc_trans_common (ns); |
6567 | ||
b31f705b | 6568 | /* Create a global symbol with the mane of the block data. This is to |
6569 | generate linker errors if the same name is used twice. It is never | |
6570 | really used. */ | |
9ec7c303 | 6571 | if (ns->proc_name) |
6572 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6573 | else | |
6574 | id = get_identifier ("__BLOCK_DATA__"); | |
6575 | ||
e60a6f7b | 6576 | decl = build_decl (input_location, |
6577 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6578 | TREE_PUBLIC (decl) = 1; |
6579 | TREE_STATIC (decl) = 1; | |
df4d540f | 6580 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6581 | |
6582 | pushdecl (decl); | |
6583 | rest_of_decl_compilation (decl, 1, 0); | |
6584 | } | |
6585 | ||
b549d2a5 | 6586 | |
6a7084d7 | 6587 | /* Process the local variables of a BLOCK construct. */ |
6588 | ||
6589 | void | |
3c82e013 | 6590 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6591 | { |
6592 | tree decl; | |
6593 | ||
6594 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 6595 | has_coarray_vars = false; |
6596 | ||
6a7084d7 | 6597 | generate_local_vars (ns); |
6598 | ||
4fe73152 | 6599 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6600 | generate_coarray_init (ns); |
6601 | ||
267f3c67 | 6602 | decl = nreverse (saved_local_decls); |
6a7084d7 | 6603 | while (decl) |
6604 | { | |
6605 | tree next; | |
6606 | ||
1767a056 | 6607 | next = DECL_CHAIN (decl); |
6608 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6609 | pushdecl (decl); |
6610 | decl = next; | |
6611 | } | |
6612 | saved_local_decls = NULL_TREE; | |
6613 | } | |
6614 | ||
6615 | ||
4ee9c684 | 6616 | #include "gt-fortran-trans-decl.h" |