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4ee9c684 | 1 | /* Backend function setup |
d353bf18 | 2 | Copyright (C) 2002-2015 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" | |
cb4070e0 | 26 | #include "tm.h" |
dc8078a3 | 27 | #include "gfortran.h" |
b20a8bb4 | 28 | #include "hash-set.h" |
29 | #include "machmode.h" | |
30 | #include "vec.h" | |
31 | #include "double-int.h" | |
32 | #include "input.h" | |
33 | #include "alias.h" | |
34 | #include "symtab.h" | |
35 | #include "wide-int.h" | |
36 | #include "inchash.h" | |
4ee9c684 | 37 | #include "tree.h" |
b20a8bb4 | 38 | #include "fold-const.h" |
9ed99284 | 39 | #include "stringpool.h" |
40 | #include "stor-layout.h" | |
41 | #include "varasm.h" | |
42 | #include "attribs.h" | |
4ee9c684 | 43 | #include "tree-dump.h" |
a8783bee | 44 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
4ee9c684 | 45 | #include "ggc.h" |
7cbc820e | 46 | #include "diagnostic-core.h" /* For internal_error. */ |
47 | #include "toplev.h" /* For announce_function. */ | |
4ee9c684 | 48 | #include "target.h" |
a3020f2f | 49 | #include "hard-reg-set.h" |
50 | #include "input.h" | |
4ee9c684 | 51 | #include "function.h" |
4ee9c684 | 52 | #include "flags.h" |
1140c305 | 53 | #include "hash-map.h" |
54 | #include "is-a.h" | |
55 | #include "plugin-api.h" | |
56 | #include "ipa-ref.h" | |
4ee9c684 | 57 | #include "cgraph.h" |
df4d540f | 58 | #include "debug.h" |
126387b5 | 59 | #include "constructor.h" |
4ee9c684 | 60 | #include "trans.h" |
61 | #include "trans-types.h" | |
62 | #include "trans-array.h" | |
63 | #include "trans-const.h" | |
64 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
65 | #include "trans-stmt.h" | |
66 | ||
67 | #define MAX_LABEL_VALUE 99999 | |
68 | ||
69 | ||
70 | /* Holds the result of the function if no result variable specified. */ | |
71 | ||
72 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 73 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 74 | |
4ee9c684 | 75 | |
76 | /* Holds the variable DECLs for the current function. */ | |
77 | ||
d4163395 | 78 | static GTY(()) tree saved_function_decls; |
79 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 80 | |
431205b7 | 81 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
9579733e | 82 | static GTY(()) tree nonlocal_dummy_decls; |
4ee9c684 | 83 | |
6a7084d7 | 84 | /* Holds the variable DECLs that are locals. */ |
85 | ||
86 | static GTY(()) tree saved_local_decls; | |
87 | ||
4ee9c684 | 88 | /* The namespace of the module we're currently generating. Only used while |
89 | outputting decls for module variables. Do not rely on this being set. */ | |
90 | ||
91 | static gfc_namespace *module_namespace; | |
92 | ||
89ac8ba1 | 93 | /* The currently processed procedure symbol. */ |
94 | static gfc_symbol* current_procedure_symbol = NULL; | |
95 | ||
3adf245a | 96 | /* The currently processed module. */ |
97 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 98 | |
a961ca30 | 99 | /* With -fcoarray=lib: For generating the registering call |
100 | of static coarrays. */ | |
101 | static bool has_coarray_vars; | |
102 | static stmtblock_t caf_init_block; | |
103 | ||
104 | ||
4ee9c684 | 105 | /* List of static constructor functions. */ |
106 | ||
107 | tree gfc_static_ctors; | |
108 | ||
109 | ||
d566c3e0 | 110 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
111 | static int seen_ieee_symbol; | |
112 | ||
4ee9c684 | 113 | /* Function declarations for builtin library functions. */ |
114 | ||
4ee9c684 | 115 | tree gfor_fndecl_pause_numeric; |
116 | tree gfor_fndecl_pause_string; | |
117 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 118 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 119 | tree gfor_fndecl_stop_string; |
070cc790 | 120 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 121 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 122 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 123 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 124 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 125 | tree gfor_fndecl_os_error; |
50ad5fa2 | 126 | tree gfor_fndecl_generate_error; |
7257a5d2 | 127 | tree gfor_fndecl_set_args; |
8c84a5de | 128 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 129 | tree gfor_fndecl_set_options; |
15774a8b | 130 | tree gfor_fndecl_set_convert; |
f23886ab | 131 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 132 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 133 | tree gfor_fndecl_ctime; |
134 | tree gfor_fndecl_fdate; | |
dbc97b88 | 135 | tree gfor_fndecl_ttynam; |
4ee9c684 | 136 | tree gfor_fndecl_in_pack; |
137 | tree gfor_fndecl_in_unpack; | |
138 | tree gfor_fndecl_associated; | |
72ce5390 | 139 | tree gfor_fndecl_system_clock4; |
140 | tree gfor_fndecl_system_clock8; | |
d566c3e0 | 141 | tree gfor_fndecl_ieee_procedure_entry; |
142 | tree gfor_fndecl_ieee_procedure_exit; | |
4ee9c684 | 143 | |
144 | ||
70b5944a | 145 | /* Coarray run-time library function decls. */ |
146 | tree gfor_fndecl_caf_init; | |
147 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 148 | tree gfor_fndecl_caf_this_image; |
149 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 150 | tree gfor_fndecl_caf_register; |
d0d776fb | 151 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 152 | tree gfor_fndecl_caf_get; |
153 | tree gfor_fndecl_caf_send; | |
154 | tree gfor_fndecl_caf_sendget; | |
70b5944a | 155 | tree gfor_fndecl_caf_sync_all; |
156 | tree gfor_fndecl_caf_sync_images; | |
157 | tree gfor_fndecl_caf_error_stop; | |
158 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 159 | tree gfor_fndecl_caf_atomic_def; |
160 | tree gfor_fndecl_caf_atomic_ref; | |
161 | tree gfor_fndecl_caf_atomic_cas; | |
162 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 163 | tree gfor_fndecl_caf_lock; |
164 | tree gfor_fndecl_caf_unlock; | |
52306a18 | 165 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 166 | tree gfor_fndecl_co_max; |
167 | tree gfor_fndecl_co_min; | |
e39efcef | 168 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 169 | tree gfor_fndecl_co_sum; |
70b5944a | 170 | |
70b5944a | 171 | |
4ee9c684 | 172 | /* Math functions. Many other math functions are handled in |
173 | trans-intrinsic.c. */ | |
174 | ||
920e54ef | 175 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 176 | tree gfor_fndecl_math_ishftc4; |
177 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 178 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 179 | |
180 | ||
181 | /* String functions. */ | |
182 | ||
4ee9c684 | 183 | tree gfor_fndecl_compare_string; |
184 | tree gfor_fndecl_concat_string; | |
185 | tree gfor_fndecl_string_len_trim; | |
186 | tree gfor_fndecl_string_index; | |
187 | tree gfor_fndecl_string_scan; | |
188 | tree gfor_fndecl_string_verify; | |
189 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 190 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 191 | tree gfor_fndecl_adjustl; |
192 | tree gfor_fndecl_adjustr; | |
b44437b9 | 193 | tree gfor_fndecl_select_string; |
40b806de | 194 | tree gfor_fndecl_compare_string_char4; |
195 | tree gfor_fndecl_concat_string_char4; | |
196 | tree gfor_fndecl_string_len_trim_char4; | |
197 | tree gfor_fndecl_string_index_char4; | |
198 | tree gfor_fndecl_string_scan_char4; | |
199 | tree gfor_fndecl_string_verify_char4; | |
200 | tree gfor_fndecl_string_trim_char4; | |
201 | tree gfor_fndecl_string_minmax_char4; | |
202 | tree gfor_fndecl_adjustl_char4; | |
203 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 204 | tree gfor_fndecl_select_string_char4; |
205 | ||
206 | ||
207 | /* Conversion between character kinds. */ | |
208 | tree gfor_fndecl_convert_char1_to_char4; | |
209 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 210 | |
211 | ||
212 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 213 | tree gfor_fndecl_size0; |
214 | tree gfor_fndecl_size1; | |
9b057c29 | 215 | tree gfor_fndecl_iargc; |
4ee9c684 | 216 | |
59e2a584 | 217 | /* Intrinsic functions implemented in Fortran. */ |
218 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 219 | tree gfor_fndecl_si_kind; |
220 | tree gfor_fndecl_sr_kind; | |
221 | ||
4e8e57b0 | 222 | /* BLAS gemm functions. */ |
223 | tree gfor_fndecl_sgemm; | |
224 | tree gfor_fndecl_dgemm; | |
225 | tree gfor_fndecl_cgemm; | |
226 | tree gfor_fndecl_zgemm; | |
227 | ||
4ee9c684 | 228 | |
229 | static void | |
230 | gfc_add_decl_to_parent_function (tree decl) | |
231 | { | |
22d678e8 | 232 | gcc_assert (decl); |
4ee9c684 | 233 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
234 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 235 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 236 | saved_parent_function_decls = decl; |
237 | } | |
238 | ||
239 | void | |
240 | gfc_add_decl_to_function (tree decl) | |
241 | { | |
22d678e8 | 242 | gcc_assert (decl); |
4ee9c684 | 243 | TREE_USED (decl) = 1; |
244 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 245 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 246 | saved_function_decls = decl; |
247 | } | |
248 | ||
6a7084d7 | 249 | static void |
250 | add_decl_as_local (tree decl) | |
251 | { | |
252 | gcc_assert (decl); | |
253 | TREE_USED (decl) = 1; | |
254 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 255 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 256 | saved_local_decls = decl; |
257 | } | |
258 | ||
4ee9c684 | 259 | |
b797d6d3 | 260 | /* Build a backend label declaration. Set TREE_USED for named labels. |
261 | The context of the label is always the current_function_decl. All | |
262 | labels are marked artificial. */ | |
4ee9c684 | 263 | |
264 | tree | |
265 | gfc_build_label_decl (tree label_id) | |
266 | { | |
267 | /* 2^32 temporaries should be enough. */ | |
268 | static unsigned int tmp_num = 1; | |
269 | tree label_decl; | |
270 | char *label_name; | |
271 | ||
272 | if (label_id == NULL_TREE) | |
273 | { | |
274 | /* Build an internal label name. */ | |
275 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
276 | label_id = get_identifier (label_name); | |
277 | } | |
278 | else | |
279 | label_name = NULL; | |
280 | ||
281 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 282 | label_decl = build_decl (input_location, |
283 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 284 | DECL_CONTEXT (label_decl) = current_function_decl; |
285 | DECL_MODE (label_decl) = VOIDmode; | |
286 | ||
b797d6d3 | 287 | /* We always define the label as used, even if the original source |
288 | file never references the label. We don't want all kinds of | |
289 | spurious warnings for old-style Fortran code with too many | |
290 | labels. */ | |
291 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 292 | |
b797d6d3 | 293 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 294 | return label_decl; |
295 | } | |
296 | ||
297 | ||
b31f705b | 298 | /* Set the backend source location of a decl. */ |
299 | ||
300 | void | |
301 | gfc_set_decl_location (tree decl, locus * loc) | |
302 | { | |
b31f705b | 303 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 304 | } |
305 | ||
306 | ||
4ee9c684 | 307 | /* Return the backend label declaration for a given label structure, |
308 | or create it if it doesn't exist yet. */ | |
309 | ||
310 | tree | |
311 | gfc_get_label_decl (gfc_st_label * lp) | |
312 | { | |
4ee9c684 | 313 | if (lp->backend_decl) |
314 | return lp->backend_decl; | |
315 | else | |
316 | { | |
317 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
318 | tree label_decl; | |
319 | ||
320 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 321 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 322 | |
323 | /* Build a mangled name for the label. */ | |
324 | sprintf (label_name, "__label_%.6d", lp->value); | |
325 | ||
326 | /* Build the LABEL_DECL node. */ | |
327 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
328 | ||
329 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 330 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 331 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 332 | else |
333 | DECL_ARTIFICIAL (label_decl) = 1; | |
334 | ||
335 | /* Store the label in the label list and return the LABEL_DECL. */ | |
336 | lp->backend_decl = label_decl; | |
337 | return label_decl; | |
338 | } | |
339 | } | |
340 | ||
341 | ||
342 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
343 | ||
344 | static tree | |
345 | gfc_sym_identifier (gfc_symbol * sym) | |
346 | { | |
0509d0ee | 347 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
348 | return (get_identifier ("MAIN__")); | |
349 | else | |
350 | return (get_identifier (sym->name)); | |
4ee9c684 | 351 | } |
352 | ||
353 | ||
354 | /* Construct mangled name from symbol name. */ | |
355 | ||
356 | static tree | |
357 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
358 | { | |
359 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
360 | ||
c5d33754 | 361 | /* Prevent the mangling of identifiers that have an assigned |
362 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 363 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
364 | return get_identifier (sym->binding_label); | |
a90fe829 | 365 | |
4f0fae8e | 366 | if (sym->module == NULL) |
4ee9c684 | 367 | return gfc_sym_identifier (sym); |
368 | else | |
369 | { | |
f08a3f6f | 370 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 371 | return get_identifier (name); |
372 | } | |
373 | } | |
374 | ||
375 | ||
376 | /* Construct mangled function name from symbol name. */ | |
377 | ||
378 | static tree | |
379 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
380 | { | |
381 | int has_underscore; | |
382 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
383 | ||
c5d33754 | 384 | /* It may be possible to simply use the binding label if it's |
385 | provided, and remove the other checks. Then we could use it | |
386 | for other things if we wished. */ | |
387 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 388 | sym->binding_label) |
c5d33754 | 389 | /* use the binding label rather than the mangled name */ |
390 | return get_identifier (sym->binding_label); | |
391 | ||
4f0fae8e | 392 | if (sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 393 | || (sym->module != NULL && (sym->attr.external |
394 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4ee9c684 | 395 | { |
a2f97da7 | 396 | /* Main program is mangled into MAIN__. */ |
397 | if (sym->attr.is_main_program) | |
398 | return get_identifier ("MAIN__"); | |
399 | ||
400 | /* Intrinsic procedures are never mangled. */ | |
401 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 402 | return get_identifier (sym->name); |
403 | ||
829d7a08 | 404 | if (flag_underscoring) |
4ee9c684 | 405 | { |
406 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 407 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 408 | snprintf (name, sizeof name, "%s__", sym->name); |
409 | else | |
410 | snprintf (name, sizeof name, "%s_", sym->name); | |
411 | return get_identifier (name); | |
412 | } | |
413 | else | |
414 | return get_identifier (sym->name); | |
415 | } | |
416 | else | |
417 | { | |
f08a3f6f | 418 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 419 | return get_identifier (name); |
420 | } | |
421 | } | |
422 | ||
423 | ||
1236e28b | 424 | void |
425 | gfc_set_decl_assembler_name (tree decl, tree name) | |
426 | { | |
427 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
428 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
429 | } | |
430 | ||
431 | ||
5ed82495 | 432 | /* Returns true if a variable of specified size should go on the stack. */ |
433 | ||
434 | int | |
435 | gfc_can_put_var_on_stack (tree size) | |
436 | { | |
437 | unsigned HOST_WIDE_INT low; | |
438 | ||
439 | if (!INTEGER_CST_P (size)) | |
440 | return 0; | |
441 | ||
eb106faf | 442 | if (flag_max_stack_var_size < 0) |
5ed82495 | 443 | return 1; |
444 | ||
e1d65c9f | 445 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 446 | return 0; |
447 | ||
f9ae6f95 | 448 | low = TREE_INT_CST_LOW (size); |
eb106faf | 449 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 450 | return 0; |
451 | ||
452 | /* TODO: Set a per-function stack size limit. */ | |
453 | ||
454 | return 1; | |
455 | } | |
456 | ||
457 | ||
b7bf3f81 | 458 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
459 | an expression involving its corresponding pointer. There are | |
460 | 2 cases; one for variable size arrays, and one for everything else, | |
461 | because variable-sized arrays require one fewer level of | |
462 | indirection. */ | |
463 | ||
464 | static void | |
465 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
466 | { | |
467 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
468 | tree value; | |
469 | ||
470 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 471 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 472 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
473 | ptr_decl); | |
b7bf3f81 | 474 | |
475 | /* Check to see if we're dealing with a variable-sized array. */ | |
476 | if (sym->attr.dimension | |
a90fe829 | 477 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
478 | { | |
942043f8 | 479 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 480 | them here. */ |
481 | value = convert (TREE_TYPE (decl), ptr_decl); | |
482 | } | |
483 | else | |
484 | { | |
485 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
486 | ptr_decl); | |
389dd41b | 487 | value = build_fold_indirect_ref_loc (input_location, |
488 | ptr_decl); | |
b7bf3f81 | 489 | } |
490 | ||
491 | SET_DECL_VALUE_EXPR (decl, value); | |
492 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 493 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 494 | } |
495 | ||
496 | ||
b9c7fce7 | 497 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 498 | |
499 | static void | |
b9c7fce7 | 500 | gfc_finish_decl (tree decl) |
4ee9c684 | 501 | { |
b9c7fce7 | 502 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
503 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 504 | |
b9c7fce7 | 505 | if (TREE_CODE (decl) != VAR_DECL) |
506 | return; | |
4ee9c684 | 507 | |
b9c7fce7 | 508 | if (DECL_SIZE (decl) == NULL_TREE |
509 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
510 | layout_decl (decl, 0); | |
511 | ||
512 | /* A few consistency checks. */ | |
513 | /* A static variable with an incomplete type is an error if it is | |
514 | initialized. Also if it is not file scope. Otherwise, let it | |
515 | through, but if it is not `extern' then it may cause an error | |
516 | message later. */ | |
517 | /* An automatic variable with an incomplete type is an error. */ | |
518 | ||
519 | /* We should know the storage size. */ | |
520 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 521 | || (TREE_STATIC (decl) |
b9c7fce7 | 522 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
523 | : DECL_EXTERNAL (decl))); | |
524 | ||
525 | /* The storage size should be constant. */ | |
526 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
527 | || !DECL_SIZE (decl) | |
528 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 529 | } |
530 | ||
531 | ||
cf5f881f | 532 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
533 | ||
534 | void | |
535 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
536 | { | |
537 | if (!attr->dimension && !attr->codimension) | |
538 | { | |
539 | /* Handle scalar allocatable variables. */ | |
540 | if (attr->allocatable) | |
541 | { | |
542 | gfc_allocate_lang_decl (decl); | |
543 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
544 | } | |
545 | /* Handle scalar pointer variables. */ | |
546 | if (attr->pointer) | |
547 | { | |
548 | gfc_allocate_lang_decl (decl); | |
549 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
550 | } | |
551 | } | |
552 | } | |
553 | ||
554 | ||
4ee9c684 | 555 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
556 | ||
557 | static void | |
558 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
559 | { | |
c1977dbe | 560 | tree new_type; |
b549d2a5 | 561 | |
b7bf3f81 | 562 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 563 | if (sym->attr.cray_pointee) |
b7bf3f81 | 564 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 565 | |
845a9546 | 566 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
567 | This is the equivalent of the TARGET variables. | |
568 | We also need to set this if the variable is passed by reference in a | |
569 | CALL statement. */ | |
4ee9c684 | 570 | if (sym->attr.target) |
571 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 572 | |
4ee9c684 | 573 | /* If it wasn't used we wouldn't be getting it. */ |
574 | TREE_USED (decl) = 1; | |
575 | ||
7415cfe4 | 576 | if (sym->attr.flavor == FL_PARAMETER |
577 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
578 | TREE_READONLY (decl) = 1; | |
579 | ||
4ee9c684 | 580 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
581 | because this would add them to the current scope rather than the | |
582 | function scope. */ | |
583 | if (current_function_decl != NULL_TREE) | |
584 | { | |
7af6a4af | 585 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 586 | || sym->result == sym) |
4ee9c684 | 587 | gfc_add_decl_to_function (decl); |
6a7084d7 | 588 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
589 | /* This is a BLOCK construct. */ | |
590 | add_decl_as_local (decl); | |
4ee9c684 | 591 | else |
592 | gfc_add_decl_to_parent_function (decl); | |
593 | } | |
594 | ||
b7bf3f81 | 595 | if (sym->attr.cray_pointee) |
596 | return; | |
597 | ||
c5cb468c | 598 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 599 | { |
600 | /* We need to put variables that are bind(c) into the common | |
601 | segment of the object file, because this is what C would do. | |
602 | gfortran would typically put them in either the BSS or | |
603 | initialized data segments, and only mark them as common if | |
604 | they were part of common blocks. However, if they are not put | |
ea657963 | 605 | into common space, then C cannot initialize global Fortran |
c5d33754 | 606 | variables that it interoperates with and the draft says that |
607 | either Fortran or C should be able to initialize it (but not | |
608 | both, of course.) (J3/04-007, section 15.3). */ | |
609 | TREE_PUBLIC(decl) = 1; | |
610 | DECL_COMMON(decl) = 1; | |
611 | } | |
a90fe829 | 612 | |
4ee9c684 | 613 | /* If a variable is USE associated, it's always external. */ |
614 | if (sym->attr.use_assoc) | |
615 | { | |
616 | DECL_EXTERNAL (decl) = 1; | |
617 | TREE_PUBLIC (decl) = 1; | |
618 | } | |
4f0fae8e | 619 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 620 | { |
6b20224d | 621 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 622 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 623 | |
87d9f569 | 624 | if (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used) |
c5cb468c | 625 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 626 | TREE_STATIC (decl) = 1; |
627 | } | |
628 | ||
f0d4969f | 629 | /* Derived types are a bit peculiar because of the possibility of |
630 | a default initializer; this must be applied each time the variable | |
631 | comes into scope it therefore need not be static. These variables | |
632 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 633 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 634 | SAVE_EXPLICIT. */ |
635 | if (!sym->attr.use_assoc | |
636 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 637 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 638 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 639 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 640 | TREE_STATIC (decl) = 1; |
ef814c81 | 641 | |
642 | if (sym->attr.volatile_) | |
643 | { | |
ef814c81 | 644 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 645 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 646 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
647 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 648 | } |
ef814c81 | 649 | |
4ee9c684 | 650 | /* Keep variables larger than max-stack-var-size off stack. */ |
651 | if (!sym->ns->proc_name->attr.recursive | |
652 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 653 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
654 | /* Put variable length auto array pointers always into stack. */ | |
655 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
656 | || sym->attr.dimension == 0 | |
657 | || sym->as->type != AS_EXPLICIT | |
658 | || sym->attr.pointer | |
659 | || sym->attr.allocatable) | |
660 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 661 | TREE_STATIC (decl) = 1; |
764f1175 | 662 | |
663 | /* Handle threadprivate variables. */ | |
9dda1f80 | 664 | if (sym->attr.threadprivate |
764f1175 | 665 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 666 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 667 | |
668 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 669 | } |
670 | ||
671 | ||
672 | /* Allocate the lang-specific part of a decl. */ | |
673 | ||
674 | void | |
675 | gfc_allocate_lang_decl (tree decl) | |
676 | { | |
cf5f881f | 677 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
678 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 679 | } |
680 | ||
681 | /* Remember a symbol to generate initialization/cleanup code at function | |
682 | entry/exit. */ | |
683 | ||
684 | static void | |
685 | gfc_defer_symbol_init (gfc_symbol * sym) | |
686 | { | |
687 | gfc_symbol *p; | |
688 | gfc_symbol *last; | |
689 | gfc_symbol *head; | |
690 | ||
691 | /* Don't add a symbol twice. */ | |
692 | if (sym->tlink) | |
693 | return; | |
694 | ||
695 | last = head = sym->ns->proc_name; | |
696 | p = last->tlink; | |
697 | ||
698 | /* Make sure that setup code for dummy variables which are used in the | |
699 | setup of other variables is generated first. */ | |
700 | if (sym->attr.dummy) | |
701 | { | |
702 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
703 | This is a circular list, so don't go past the head. */ | |
704 | while (p != head | |
705 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
706 | { | |
707 | last = p; | |
708 | p = p->tlink; | |
709 | } | |
710 | } | |
711 | /* Insert in between last and p. */ | |
712 | last->tlink = sym; | |
713 | sym->tlink = p; | |
714 | } | |
715 | ||
716 | ||
9f5a9ac5 | 717 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
718 | backend_decl for a module symbol, if it all ready exists. If the | |
719 | module gsymbol does not exist, it is created. If the symbol does | |
720 | not exist, it is added to the gsymbol namespace. Returns true if | |
721 | an existing backend_decl is found. */ | |
722 | ||
723 | bool | |
724 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
725 | { | |
726 | gfc_gsymbol *gsym; | |
727 | gfc_symbol *s; | |
728 | gfc_symtree *st; | |
729 | ||
730 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
731 | ||
732 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
733 | { | |
734 | st = NULL; | |
735 | s = NULL; | |
736 | ||
737 | if (gsym) | |
738 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
739 | ||
740 | if (!s) | |
741 | { | |
742 | if (!gsym) | |
743 | { | |
744 | gsym = gfc_get_gsymbol (sym->module); | |
745 | gsym->type = GSYM_MODULE; | |
746 | gsym->ns = gfc_get_namespace (NULL, 0); | |
747 | } | |
748 | ||
749 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
750 | st->n.sym = sym; | |
751 | sym->refs++; | |
752 | } | |
753 | else if (sym->attr.flavor == FL_DERIVED) | |
754 | { | |
c2958b6b | 755 | if (s && s->attr.flavor == FL_PROCEDURE) |
756 | { | |
757 | gfc_interface *intr; | |
758 | gcc_assert (s->attr.generic); | |
759 | for (intr = s->generic; intr; intr = intr->next) | |
760 | if (intr->sym->attr.flavor == FL_DERIVED) | |
761 | { | |
762 | s = intr->sym; | |
763 | break; | |
764 | } | |
765 | } | |
766 | ||
9f5a9ac5 | 767 | if (!s->backend_decl) |
768 | s->backend_decl = gfc_get_derived_type (s); | |
769 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
770 | return true; | |
771 | } | |
772 | else if (s->backend_decl) | |
773 | { | |
85ec2f13 | 774 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 775 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
776 | true); | |
777 | else if (sym->ts.type == BT_CHARACTER) | |
778 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
779 | sym->backend_decl = s->backend_decl; | |
780 | return true; | |
781 | } | |
782 | } | |
783 | return false; | |
784 | } | |
785 | ||
786 | ||
4ee9c684 | 787 | /* Create an array index type variable with function scope. */ |
788 | ||
789 | static tree | |
790 | create_index_var (const char * pfx, int nest) | |
791 | { | |
792 | tree decl; | |
793 | ||
794 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
795 | if (nest) | |
796 | gfc_add_decl_to_parent_function (decl); | |
797 | else | |
798 | gfc_add_decl_to_function (decl); | |
799 | return decl; | |
800 | } | |
801 | ||
802 | ||
803 | /* Create variables to hold all the non-constant bits of info for a | |
804 | descriptorless array. Remember these in the lang-specific part of the | |
805 | type. */ | |
806 | ||
807 | static void | |
808 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
809 | { | |
810 | tree type; | |
811 | int dim; | |
812 | int nest; | |
7b82374f | 813 | gfc_namespace* procns; |
4ee9c684 | 814 | |
815 | type = TREE_TYPE (decl); | |
816 | ||
817 | /* We just use the descriptor, if there is one. */ | |
818 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
819 | return; | |
820 | ||
22d678e8 | 821 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 822 | procns = gfc_find_proc_namespace (sym->ns); |
823 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 824 | && !sym->attr.contained; |
825 | ||
4fe73152 | 826 | if (sym->attr.codimension && flag_coarray == GFC_FCOARRAY_LIB |
7dce33fe | 827 | && sym->as->type != AS_ASSUMED_SHAPE |
a961ca30 | 828 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
829 | { | |
830 | tree token; | |
ac36faf0 | 831 | tree token_type = build_qualified_type (pvoid_type_node, |
832 | TYPE_QUAL_RESTRICT); | |
833 | ||
834 | if (sym->module && (sym->attr.use_assoc | |
835 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
836 | { | |
837 | tree token_name | |
838 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
839 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
840 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
841 | token_type); | |
3adf245a | 842 | if (sym->attr.use_assoc) |
843 | DECL_EXTERNAL (token) = 1; | |
844 | else | |
845 | TREE_STATIC (token) = 1; | |
846 | ||
847 | if (sym->attr.use_assoc || sym->attr.access != ACCESS_PRIVATE || | |
848 | sym->attr.public_used) | |
849 | TREE_PUBLIC (token) = 1; | |
ac36faf0 | 850 | } |
851 | else | |
3adf245a | 852 | { |
853 | token = gfc_create_var_np (token_type, "caf_token"); | |
854 | TREE_STATIC (token) = 1; | |
855 | } | |
a961ca30 | 856 | |
a961ca30 | 857 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
858 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 859 | DECL_NONALIASED (token) = 1; |
860 | ||
861 | if (sym->module && !sym->attr.use_assoc) | |
862 | { | |
863 | pushdecl (token); | |
864 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
865 | gfc_module_add_decl (cur_module, token); | |
866 | } | |
867 | else | |
868 | gfc_add_decl_to_function (token); | |
a961ca30 | 869 | } |
870 | ||
4ee9c684 | 871 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
872 | { | |
873 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 874 | { |
875 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
876 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
877 | } | |
9ca15c9b | 878 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 879 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
880 | && (sym->as->type != AS_ASSUMED_SIZE | |
881 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 882 | { |
883 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
884 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
885 | } | |
4ee9c684 | 886 | |
887 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 888 | { |
889 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
890 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
891 | } | |
4ee9c684 | 892 | } |
076094b7 | 893 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
894 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
895 | { | |
896 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
897 | { | |
898 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
899 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
900 | } | |
901 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
902 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
903 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
904 | { | |
905 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
906 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
907 | } | |
908 | } | |
4ee9c684 | 909 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
910 | { | |
911 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
912 | "offset"); | |
86254bbf | 913 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
914 | ||
4ee9c684 | 915 | if (nest) |
916 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
917 | else | |
918 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
919 | } | |
d4163395 | 920 | |
921 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
922 | && sym->as->type != AS_ASSUMED_SIZE) | |
86254bbf | 923 | { |
924 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
925 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
926 | } | |
d4163395 | 927 | |
928 | if (POINTER_TYPE_P (type)) | |
929 | { | |
930 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
931 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
932 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
933 | type = TREE_TYPE (type); | |
934 | } | |
935 | ||
936 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
937 | { | |
938 | tree size, range; | |
939 | ||
fd779e1d | 940 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
941 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 942 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
943 | size); | |
944 | TYPE_DOMAIN (type) = range; | |
945 | layout_type (type); | |
946 | } | |
6cf159a6 | 947 | |
6cf159a6 | 948 | if (TYPE_NAME (type) != NULL_TREE |
949 | && GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1) != NULL_TREE | |
950 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1)) == VAR_DECL) | |
951 | { | |
952 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
953 | ||
954 | for (dim = 0; dim < sym->as->rank - 1; dim++) | |
955 | { | |
956 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
957 | gtype = TREE_TYPE (gtype); | |
958 | } | |
959 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
960 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
961 | TYPE_NAME (type) = NULL_TREE; | |
962 | } | |
963 | ||
964 | if (TYPE_NAME (type) == NULL_TREE) | |
965 | { | |
966 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
967 | ||
968 | for (dim = sym->as->rank - 1; dim >= 0; dim--) | |
969 | { | |
7130ec9d | 970 | tree lbound, ubound; |
971 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
972 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
973 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 974 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 975 | /* Ensure the bound variables aren't optimized out at -O0. |
976 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 977 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
978 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
979 | end up in debug info. */ | |
7130ec9d | 980 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
981 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
982 | { | |
983 | if (DECL_NAME (lbound) | |
984 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
985 | "lbound") != 0) | |
84bfaaeb | 986 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 987 | DECL_IGNORED_P (lbound) = 0; |
988 | } | |
989 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
990 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
991 | { | |
992 | if (DECL_NAME (ubound) | |
993 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
994 | "ubound") != 0) | |
84bfaaeb | 995 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 996 | DECL_IGNORED_P (ubound) = 0; |
997 | } | |
6cf159a6 | 998 | } |
e60a6f7b | 999 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1000 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1001 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1002 | } | |
4ee9c684 | 1003 | } |
1004 | ||
1005 | ||
1006 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1007 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1008 | initialization, and construct full type information. */ |
1009 | ||
1010 | static tree | |
1011 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1012 | { | |
1013 | tree decl; | |
1014 | tree type; | |
1015 | gfc_array_spec *as; | |
1016 | char *name; | |
3d8dea5a | 1017 | gfc_packed packed; |
4ee9c684 | 1018 | int n; |
1019 | bool known_size; | |
1020 | ||
f00f6dd6 | 1021 | if (sym->attr.pointer || sym->attr.allocatable |
1022 | || (sym->as && sym->as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1023 | return dummy; |
1024 | ||
1025 | /* Add to list of variables if not a fake result variable. */ | |
1026 | if (sym->attr.result || sym->attr.dummy) | |
1027 | gfc_defer_symbol_init (sym); | |
1028 | ||
1029 | type = TREE_TYPE (dummy); | |
22d678e8 | 1030 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
4ee9c684 | 1031 | && POINTER_TYPE_P (type)); |
1032 | ||
f888a3fb | 1033 | /* Do we know the element size? */ |
4ee9c684 | 1034 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1035 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1036 | |
4ee9c684 | 1037 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (type))) |
1038 | { | |
1039 | /* For descriptorless arrays with known element size the actual | |
1040 | argument is sufficient. */ | |
22d678e8 | 1041 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
4ee9c684 | 1042 | gfc_build_qualified_array (dummy, sym); |
1043 | return dummy; | |
1044 | } | |
1045 | ||
1046 | type = TREE_TYPE (type); | |
1047 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
1048 | { | |
cb8e3560 | 1049 | /* Create a descriptorless array pointer. */ |
4ee9c684 | 1050 | as = sym->as; |
3d8dea5a | 1051 | packed = PACKED_NO; |
3d235846 | 1052 | |
1053 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1054 | are not repacked. */ | |
829d7a08 | 1055 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1056 | { |
1057 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1058 | packed = PACKED_FULL; |
4ee9c684 | 1059 | } |
1060 | else | |
1061 | { | |
1062 | if (as->type == AS_EXPLICIT) | |
1063 | { | |
3d8dea5a | 1064 | packed = PACKED_FULL; |
4ee9c684 | 1065 | for (n = 0; n < as->rank; n++) |
1066 | { | |
1067 | if (!(as->upper[n] | |
1068 | && as->lower[n] | |
1069 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1070 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1071 | { |
1072 | packed = PACKED_PARTIAL; | |
1073 | break; | |
1074 | } | |
4ee9c684 | 1075 | } |
1076 | } | |
1077 | else | |
3d8dea5a | 1078 | packed = PACKED_PARTIAL; |
4ee9c684 | 1079 | } |
1080 | ||
1081 | type = gfc_typenode_for_spec (&sym->ts); | |
e1b3b79b | 1082 | type = gfc_get_nodesc_array_type (type, sym->as, packed, |
1083 | !sym->attr.target); | |
4ee9c684 | 1084 | } |
1085 | else | |
1086 | { | |
1087 | /* We now have an expression for the element size, so create a fully | |
1088 | qualified type. Reset sym->backend decl or this will just return the | |
1089 | old type. */ | |
d95efb59 | 1090 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1091 | sym->backend_decl = NULL_TREE; |
1092 | type = gfc_sym_type (sym); | |
3d8dea5a | 1093 | packed = PACKED_FULL; |
4ee9c684 | 1094 | } |
1095 | ||
1096 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1097 | decl = build_decl (input_location, |
1098 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1099 | |
1100 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1101 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1102 | TREE_PUBLIC (decl) = 0; |
1103 | TREE_STATIC (decl) = 0; | |
1104 | DECL_EXTERNAL (decl) = 0; | |
1105 | ||
a1f1e248 | 1106 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1107 | if (sym->attr.optional) | |
1108 | TREE_NO_WARNING (decl) = 1; | |
1109 | ||
4ee9c684 | 1110 | /* We should never get deferred shape arrays here. We used to because of |
1111 | frontend bugs. */ | |
22d678e8 | 1112 | gcc_assert (sym->as->type != AS_DEFERRED); |
4ee9c684 | 1113 | |
3d8dea5a | 1114 | if (packed == PACKED_PARTIAL) |
1115 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1116 | else if (packed == PACKED_FULL) | |
1117 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1118 | |
1119 | gfc_build_qualified_array (decl, sym); | |
1120 | ||
1121 | if (DECL_LANG_SPECIFIC (dummy)) | |
1122 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1123 | else | |
1124 | gfc_allocate_lang_decl (decl); | |
1125 | ||
1126 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1127 | ||
1128 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1129 | || sym->attr.contained) | |
1130 | gfc_add_decl_to_function (decl); | |
1131 | else | |
1132 | gfc_add_decl_to_parent_function (decl); | |
1133 | ||
1134 | return decl; | |
1135 | } | |
1136 | ||
9579733e | 1137 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1138 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1139 | pointing to the artificial variable for debug info purposes. */ | |
1140 | ||
1141 | static void | |
1142 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1143 | { | |
1144 | tree decl, dummy; | |
1145 | ||
1146 | if (! nonlocal_dummy_decl_pset) | |
431205b7 | 1147 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
9579733e | 1148 | |
431205b7 | 1149 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
9579733e | 1150 | return; |
1151 | ||
1152 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1153 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1154 | TREE_TYPE (sym->backend_decl)); |
1155 | DECL_ARTIFICIAL (decl) = 0; | |
1156 | TREE_USED (decl) = 1; | |
1157 | TREE_PUBLIC (decl) = 0; | |
1158 | TREE_STATIC (decl) = 0; | |
1159 | DECL_EXTERNAL (decl) = 0; | |
1160 | if (DECL_BY_REFERENCE (dummy)) | |
1161 | DECL_BY_REFERENCE (decl) = 1; | |
1162 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1163 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1164 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1165 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1166 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1167 | nonlocal_dummy_decls = decl; |
1168 | } | |
4ee9c684 | 1169 | |
1170 | /* Return a constant or a variable to use as a string length. Does not | |
1171 | add the decl to the current scope. */ | |
1172 | ||
1173 | static tree | |
1174 | gfc_create_string_length (gfc_symbol * sym) | |
1175 | { | |
eeebe20b | 1176 | gcc_assert (sym->ts.u.cl); |
1177 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1178 | |
eeebe20b | 1179 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1180 | { |
a4abf8a0 | 1181 | tree length; |
774bbd60 | 1182 | const char *name; |
4ee9c684 | 1183 | |
873f242d | 1184 | /* The string length variable shall be in static memory if it is either |
1185 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1186 | relevant is "len=:" - otherwise, it is either a constant length or | |
1187 | it is an automatic variable. */ | |
be125be0 | 1188 | bool static_length = sym->attr.save |
1189 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1190 | || (flag_max_stack_var_size == 0 |
873f242d | 1191 | && sym->ts.deferred && !sym->attr.dummy |
1192 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1193 | |
1194 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1195 | variables as some systems do not support the "." in the assembler name. | |
1196 | For nonstatic variables, the "." does not appear in assembler. */ | |
1197 | if (static_length) | |
1198 | { | |
1199 | if (sym->module) | |
1200 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1201 | sym->name); | |
1202 | else | |
1203 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1204 | } | |
1205 | else if (sym->module) | |
774bbd60 | 1206 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1207 | else | |
1208 | name = gfc_get_string (".%s", sym->name); | |
1209 | ||
e60a6f7b | 1210 | length = build_decl (input_location, |
1211 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1212 | gfc_charlen_type_node); |
4ee9c684 | 1213 | DECL_ARTIFICIAL (length) = 1; |
1214 | TREE_USED (length) = 1; | |
d4163395 | 1215 | if (sym->ns->proc_name->tlink != NULL) |
1216 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1217 | |
eeebe20b | 1218 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1219 | |
be125be0 | 1220 | if (static_length) |
774bbd60 | 1221 | TREE_STATIC (length) = 1; |
1222 | ||
1223 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1224 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1225 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1226 | } |
1227 | ||
eeebe20b | 1228 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1229 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1230 | } |
1231 | ||
c8f1568f | 1232 | /* If a variable is assigned a label, we add another two auxiliary |
1233 | variables. */ | |
1234 | ||
1235 | static void | |
1236 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1237 | { | |
1238 | tree addr; | |
1239 | tree length; | |
1240 | tree decl; | |
1241 | ||
1242 | gcc_assert (sym->backend_decl); | |
1243 | ||
1244 | decl = sym->backend_decl; | |
1245 | gfc_allocate_lang_decl (decl); | |
1246 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1247 | length = build_decl (input_location, |
1248 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1249 | gfc_charlen_type_node); |
e60a6f7b | 1250 | addr = build_decl (input_location, |
1251 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1252 | pvoid_type_node); |
1253 | gfc_finish_var_decl (length, sym); | |
1254 | gfc_finish_var_decl (addr, sym); | |
1255 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1256 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1257 | target label's address. Otherwise, value is the length of a format string | |
1258 | and ASSIGN_ADDR is its address. */ | |
1259 | if (TREE_STATIC (length)) | |
35bf1214 | 1260 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1261 | else |
1262 | gfc_defer_symbol_init (sym); | |
1263 | ||
1264 | GFC_DECL_STRING_LEN (decl) = length; | |
1265 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1266 | } | |
4ee9c684 | 1267 | |
36b0a1b0 | 1268 | |
1269 | static tree | |
1270 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1271 | { | |
1272 | unsigned id; | |
1273 | tree attr; | |
1274 | ||
1275 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1276 | if (sym_attr.ext_attr & (1 << id)) | |
1277 | { | |
1278 | attr = build_tree_list ( | |
1279 | get_identifier (ext_attr_list[id].middle_end_name), | |
1280 | NULL_TREE); | |
1281 | list = chainon (list, attr); | |
1282 | } | |
1283 | ||
691447ab | 1284 | if (sym_attr.omp_declare_target) |
1285 | list = tree_cons (get_identifier ("omp declare target"), | |
1286 | NULL_TREE, list); | |
1287 | ||
36b0a1b0 | 1288 | return list; |
1289 | } | |
1290 | ||
1291 | ||
802532b9 | 1292 | static void build_function_decl (gfc_symbol * sym, bool global); |
1293 | ||
1294 | ||
4ee9c684 | 1295 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1296 | exist. */ | |
1297 | ||
1298 | tree | |
1299 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1300 | { | |
1301 | tree decl; | |
1302 | tree length = NULL_TREE; | |
36b0a1b0 | 1303 | tree attributes; |
4ee9c684 | 1304 | int byref; |
cd2c99b8 | 1305 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1306 | bool fun_or_res; |
4ee9c684 | 1307 | |
0b5dc8b5 | 1308 | gcc_assert (sym->attr.referenced |
9e45357a | 1309 | || sym->attr.flavor == FL_PROCEDURE |
1310 | || sym->attr.use_assoc | |
1311 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY | |
1312 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1313 | && sym->backend_decl)); | |
4ee9c684 | 1314 | |
ff70e443 | 1315 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1316 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1317 | else | |
1318 | byref = 0; | |
1319 | ||
09c509ed | 1320 | /* Make sure that the vtab for the declared type is completed. */ |
1321 | if (sym->ts.type == BT_CLASS) | |
1322 | { | |
50b4b37b | 1323 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1324 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1325 | { |
1326 | gfc_find_derived_vtab (c->ts.u.derived); | |
1327 | gfc_get_derived_type (sym->ts.u.derived); | |
1328 | } | |
09c509ed | 1329 | } |
1330 | ||
617125a6 | 1331 | /* All deferred character length procedures need to retain the backend |
1332 | decl, which is a pointer to the character length in the caller's | |
1333 | namespace and to declare a local character length. */ | |
1334 | if (!byref && sym->attr.function | |
1335 | && sym->ts.type == BT_CHARACTER | |
1336 | && sym->ts.deferred | |
1337 | && sym->ts.u.cl->passed_length == NULL | |
1338 | && sym->ts.u.cl->backend_decl | |
1339 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1340 | { | |
1341 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1342 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1343 | length = gfc_create_string_length (sym); | |
1344 | } | |
1345 | ||
8b9eb27e | 1346 | fun_or_res = byref && (sym->attr.result |
1347 | || (sym->attr.function && sym->ts.deferred)); | |
1348 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1349 | { |
1350 | /* Return via extra parameter. */ | |
1351 | if (sym->attr.result && byref | |
1352 | && !sym->backend_decl) | |
1353 | { | |
1354 | sym->backend_decl = | |
1355 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1356 | /* For entry master function skip over the __entry |
1357 | argument. */ | |
1358 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1359 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1360 | } |
1361 | ||
1362 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1363 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1364 | |
1365 | /* Create a character length variable. */ | |
1366 | if (sym->ts.type == BT_CHARACTER) | |
1367 | { | |
617125a6 | 1368 | /* For a deferred dummy, make a new string length variable. */ |
1369 | if (sym->ts.deferred | |
1370 | && | |
1371 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1372 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1373 | ||
d1b1479f | 1374 | if (sym->ts.deferred && byref) |
617125a6 | 1375 | { |
d1b1479f | 1376 | /* The string length of a deferred char array is stored in the |
1377 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1378 | marked as a result. Exempt this variable from generating a | |
1379 | temporary for it. */ | |
1380 | if (sym->attr.result) | |
1381 | { | |
1382 | /* We need to insert a indirect ref for param decls. */ | |
1383 | if (sym->ts.u.cl->backend_decl | |
1384 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1385 | sym->ts.u.cl->backend_decl = | |
1386 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1387 | } | |
1388 | /* For all other parameters make sure, that they are copied so | |
1389 | that the value and any modifications are local to the routine | |
1390 | by generating a temporary variable. */ | |
1391 | else if (sym->attr.function | |
1392 | && sym->ts.u.cl->passed_length == NULL | |
1393 | && sym->ts.u.cl->backend_decl) | |
1394 | { | |
1395 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1396 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1397 | } | |
617125a6 | 1398 | } |
1399 | ||
eeebe20b | 1400 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1401 | length = gfc_create_string_length (sym); |
1402 | else | |
eeebe20b | 1403 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1404 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1405 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1406 | { |
d95efb59 | 1407 | /* Add the string length to the same context as the symbol. */ |
1408 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1409 | gfc_add_decl_to_function (length); | |
1410 | else | |
1411 | gfc_add_decl_to_parent_function (length); | |
1412 | ||
1413 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1414 | DECL_CONTEXT (length)); | |
1415 | ||
d4163395 | 1416 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1417 | } |
4ee9c684 | 1418 | } |
1419 | ||
1420 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1421 | if ((sym->attr.dimension || sym->attr.codimension) |
1422 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1423 | { |
d95efb59 | 1424 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1425 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1426 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1427 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1428 | sym->backend_decl = decl; | |
4ee9c684 | 1429 | } |
1430 | ||
1431 | TREE_USED (sym->backend_decl) = 1; | |
c8f1568f | 1432 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1433 | { | |
1434 | gfc_add_assign_aux_vars (sym); | |
1435 | } | |
9579733e | 1436 | |
1437 | if (sym->attr.dimension | |
1438 | && DECL_LANG_SPECIFIC (sym->backend_decl) | |
1439 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1440 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1441 | gfc_nonlocal_dummy_array_decl (sym); | |
1442 | ||
fd23cc08 | 1443 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1444 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1445 | ||
fd23cc08 | 1446 | return sym->backend_decl; |
4ee9c684 | 1447 | } |
1448 | ||
1449 | if (sym->backend_decl) | |
1450 | return sym->backend_decl; | |
1451 | ||
a25debd0 | 1452 | /* Special case for array-valued named constants from intrinsic |
1453 | procedures; those are inlined. */ | |
d566c3e0 | 1454 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1455 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1456 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1457 | intrinsic_array_parameter = true; |
1458 | ||
044bbd71 | 1459 | /* If use associated compilation, use the module |
094bca96 | 1460 | declaration. */ |
044bbd71 | 1461 | if ((sym->attr.flavor == FL_VARIABLE |
1462 | || sym->attr.flavor == FL_PARAMETER) | |
1463 | && sym->attr.use_assoc | |
1464 | && !intrinsic_array_parameter | |
1465 | && sym->module | |
1466 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1467 | { |
1468 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1469 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1470 | return sym->backend_decl; | |
1471 | } | |
7ea64434 | 1472 | |
4ee9c684 | 1473 | if (sym->attr.flavor == FL_PROCEDURE) |
1474 | { | |
77d080ca | 1475 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1476 | procedure pointers and procptr initialization targets. */ |
77d080ca | 1477 | if (sym->attr.use_assoc || sym->attr.intrinsic |
1478 | || sym->attr.if_source != IFSRC_DECL) | |
802532b9 | 1479 | { |
1480 | decl = gfc_get_extern_function_decl (sym); | |
1481 | gfc_set_decl_location (decl, &sym->declared_at); | |
1482 | } | |
1483 | else | |
1484 | { | |
1485 | if (!sym->backend_decl) | |
1486 | build_function_decl (sym, false); | |
1487 | decl = sym->backend_decl; | |
1488 | } | |
4ee9c684 | 1489 | return decl; |
1490 | } | |
1491 | ||
1492 | if (sym->attr.intrinsic) | |
382ad5c3 | 1493 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1494 | |
1495 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1496 | type declaration. For associate names, the target character |
1497 | length is used. Set 'length' to a constant so that if the | |
1498 | string lenght is a variable, it is not finished a second time. */ | |
4ee9c684 | 1499 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1500 | { |
1501 | if (sym->attr.associate_var | |
1502 | && sym->ts.u.cl->backend_decl | |
1503 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
1504 | length = gfc_index_zero_node; | |
1505 | else | |
1506 | length = gfc_create_string_length (sym); | |
1507 | } | |
4ee9c684 | 1508 | |
1509 | /* Create the decl for the variable. */ | |
e60a6f7b | 1510 | decl = build_decl (sym->declared_at.lb->location, |
1511 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1512 | |
1236e28b | 1513 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1514 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1515 | decl_attributes (&decl, attributes, 0); | |
1516 | ||
f888a3fb | 1517 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1518 | This is done here rather than in gfc_finish_var_decl because it |
1519 | is different for string length variables. */ | |
4f0fae8e | 1520 | if (sym->module) |
df4d540f | 1521 | { |
1236e28b | 1522 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1523 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1524 | DECL_IGNORED_P (decl) = 1; |
1525 | } | |
4ee9c684 | 1526 | |
bc5663df | 1527 | if (sym->attr.select_type_temporary) |
1528 | { | |
1529 | DECL_ARTIFICIAL (decl) = 1; | |
1530 | DECL_IGNORED_P (decl) = 1; | |
1531 | } | |
1532 | ||
7a777e43 | 1533 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1534 | { |
1535 | /* Create variables to hold the non-constant bits of array info. */ | |
1536 | gfc_build_qualified_array (decl, sym); | |
1537 | ||
b3c3927c | 1538 | if (sym->attr.contiguous |
1539 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1540 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1541 | } | |
1542 | ||
0a96a7cc | 1543 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1544 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1545 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1546 | (CLASS_DATA (sym)->attr.dimension |
1547 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1548 | || (sym->ts.type == BT_DERIVED |
1549 | && (sym->ts.u.derived->attr.alloc_comp | |
1550 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1551 | && !sym->ns->proc_name->attr.is_main_program | |
1552 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1553 | /* This applies a derived type default initializer. */ |
1554 | || (sym->ts.type == BT_DERIVED | |
1555 | && sym->attr.save == SAVE_NONE | |
1556 | && !sym->attr.data | |
1557 | && !sym->attr.allocatable | |
1558 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1559 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1560 | gfc_defer_symbol_init (sym); |
2294b616 | 1561 | |
4ee9c684 | 1562 | gfc_finish_var_decl (decl, sym); |
1563 | ||
bda1f152 | 1564 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1565 | { |
4ee9c684 | 1566 | /* Character variables need special handling. */ |
1567 | gfc_allocate_lang_decl (decl); | |
1568 | ||
c3639856 | 1569 | /* Associate names can use the hidden string length variable |
1570 | of their associated target. */ | |
bda1f152 | 1571 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1572 | { |
4ee9c684 | 1573 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1574 | gcc_assert (!sym->value); |
4ee9c684 | 1575 | } |
4ee9c684 | 1576 | } |
1033248c | 1577 | else if (sym->attr.subref_array_pointer) |
1578 | { | |
1579 | /* We need the span for these beasts. */ | |
1580 | gfc_allocate_lang_decl (decl); | |
1581 | } | |
1582 | ||
1583 | if (sym->attr.subref_array_pointer) | |
1584 | { | |
1585 | tree span; | |
1586 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1587 | span = build_decl (input_location, |
1588 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1589 | gfc_array_index_type); |
1590 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1591 | TREE_STATIC (span) = TREE_STATIC (decl); |
1592 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1593 | |
1594 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1595 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1596 | } |
1597 | ||
fd23cc08 | 1598 | if (sym->ts.type == BT_CLASS) |
1599 | GFC_DECL_CLASS(decl) = 1; | |
1600 | ||
4ee9c684 | 1601 | sym->backend_decl = decl; |
1602 | ||
c8f1568f | 1603 | if (sym->attr.assign) |
21ebda4d | 1604 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1605 | |
cd2c99b8 | 1606 | if (intrinsic_array_parameter) |
1607 | { | |
1608 | TREE_STATIC (decl) = 1; | |
1609 | DECL_EXTERNAL (decl) = 0; | |
1610 | } | |
1611 | ||
1612 | if (TREE_STATIC (decl) | |
1613 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1614 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
eb106faf | 1615 | || flag_max_stack_var_size == 0 |
a961ca30 | 1616 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1617 | && (flag_coarray != GFC_FCOARRAY_LIB |
0d3bb1de | 1618 | || !sym->attr.codimension || sym->attr.allocatable)) |
a545a8f8 | 1619 | { |
1620 | /* Add static initializer. For procedures, it is only needed if | |
1621 | SAVE is specified otherwise they need to be reinitialized | |
1622 | every time the procedure is entered. The TREE_STATIC is | |
1623 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1624 | |
bda1f152 | 1625 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1626 | TREE_TYPE (decl), sym->attr.dimension |
1627 | || (sym->attr.codimension | |
1628 | && sym->attr.allocatable), | |
1629 | sym->attr.pointer || sym->attr.allocatable | |
1630 | || sym->ts.type == BT_CLASS, | |
1631 | sym->attr.proc_pointer); | |
bda1f152 | 1632 | } |
1633 | ||
9579733e | 1634 | if (!TREE_STATIC (decl) |
1635 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1636 | && !sym->attr.pointer | |
1637 | && !sym->attr.allocatable | |
bc5663df | 1638 | && !sym->attr.proc_pointer |
1639 | && !sym->attr.select_type_temporary) | |
9579733e | 1640 | DECL_BY_REFERENCE (decl) = 1; |
1641 | ||
cf5f881f | 1642 | if (sym->attr.associate_var) |
1643 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1644 | ||
ebad7c3e | 1645 | if (sym->attr.vtab |
1646 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1647 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1648 | |
4ee9c684 | 1649 | return decl; |
1650 | } | |
1651 | ||
1652 | ||
dbe60343 | 1653 | /* Substitute a temporary variable in place of the real one. */ |
1654 | ||
1655 | void | |
1656 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1657 | { | |
1658 | save->attr = sym->attr; | |
1659 | save->decl = sym->backend_decl; | |
1660 | ||
1661 | gfc_clear_attr (&sym->attr); | |
1662 | sym->attr.referenced = 1; | |
1663 | sym->attr.flavor = FL_VARIABLE; | |
1664 | ||
1665 | sym->backend_decl = decl; | |
1666 | } | |
1667 | ||
1668 | ||
1669 | /* Restore the original variable. */ | |
1670 | ||
1671 | void | |
1672 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1673 | { | |
1674 | sym->attr = save->attr; | |
1675 | sym->backend_decl = save->decl; | |
1676 | } | |
1677 | ||
1678 | ||
cad0ddcf | 1679 | /* Declare a procedure pointer. */ |
1680 | ||
1681 | static tree | |
1682 | get_proc_pointer_decl (gfc_symbol *sym) | |
1683 | { | |
1684 | tree decl; | |
36b0a1b0 | 1685 | tree attributes; |
cad0ddcf | 1686 | |
1687 | decl = sym->backend_decl; | |
1688 | if (decl) | |
1689 | return decl; | |
1690 | ||
e60a6f7b | 1691 | decl = build_decl (input_location, |
1692 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1693 | build_pointer_type (gfc_get_function_type (sym))); |
1694 | ||
ea6f8461 | 1695 | if (sym->module) |
1696 | { | |
1697 | /* Apply name mangling. */ | |
1698 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1699 | if (sym->attr.use_assoc) | |
1700 | DECL_IGNORED_P (decl) = 1; | |
1701 | } | |
a90fe829 | 1702 | |
e72f979a | 1703 | if ((sym->ns->proc_name |
1704 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1705 | || sym->attr.contained) |
1706 | gfc_add_decl_to_function (decl); | |
cf269acc | 1707 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1708 | gfc_add_decl_to_parent_function (decl); |
1709 | ||
1710 | sym->backend_decl = decl; | |
1711 | ||
cf269acc | 1712 | /* If a variable is USE associated, it's always external. */ |
1713 | if (sym->attr.use_assoc) | |
1714 | { | |
1715 | DECL_EXTERNAL (decl) = 1; | |
1716 | TREE_PUBLIC (decl) = 1; | |
1717 | } | |
1718 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1719 | { | |
1720 | /* This is the declaration of a module variable. */ | |
3adf245a | 1721 | if (sym->ns->proc_name->attr.flavor == FL_MODULE |
1722 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1723 | TREE_PUBLIC (decl) = 1; | |
cf269acc | 1724 | TREE_STATIC (decl) = 1; |
1725 | } | |
1726 | ||
cad0ddcf | 1727 | if (!sym->attr.use_assoc |
1728 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1729 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1730 | TREE_STATIC (decl) = 1; | |
1731 | ||
1732 | if (TREE_STATIC (decl) && sym->value) | |
1733 | { | |
1734 | /* Add static initializer. */ | |
1735 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1736 | TREE_TYPE (decl), |
1737 | sym->attr.dimension, | |
1738 | false, true); | |
cad0ddcf | 1739 | } |
1740 | ||
8fb1768c | 1741 | /* Handle threadprivate procedure pointers. */ |
1742 | if (sym->attr.threadprivate | |
1743 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1744 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1745 | |
36b0a1b0 | 1746 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1747 | decl_attributes (&decl, attributes, 0); | |
1748 | ||
cad0ddcf | 1749 | return decl; |
1750 | } | |
1751 | ||
1752 | ||
4ee9c684 | 1753 | /* Get a basic decl for an external function. */ |
1754 | ||
1755 | tree | |
1756 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1757 | { | |
1758 | tree type; | |
1759 | tree fndecl; | |
36b0a1b0 | 1760 | tree attributes; |
4ee9c684 | 1761 | gfc_expr e; |
1762 | gfc_intrinsic_sym *isym; | |
1763 | gfc_expr argexpr; | |
17000b91 | 1764 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1765 | tree name; |
1766 | tree mangled_name; | |
83aeedb9 | 1767 | gfc_gsymbol *gsym; |
4ee9c684 | 1768 | |
1769 | if (sym->backend_decl) | |
1770 | return sym->backend_decl; | |
1771 | ||
1b716045 | 1772 | /* We should never be creating external decls for alternate entry points. |
1773 | The procedure may be an alternate entry point, but we don't want/need | |
1774 | to know that. */ | |
22d678e8 | 1775 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1776 | |
cad0ddcf | 1777 | if (sym->attr.proc_pointer) |
1778 | return get_proc_pointer_decl (sym); | |
1779 | ||
83aeedb9 | 1780 | /* See if this is an external procedure from the same file. If so, |
1781 | return the backend_decl. */ | |
da5c730d | 1782 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1783 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1784 | |
c8b913ab | 1785 | if (gsym && !gsym->defined) |
1786 | gsym = NULL; | |
1787 | ||
1788 | /* This can happen because of C binding. */ | |
1789 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1790 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1791 | goto module_sym; | |
1792 | ||
044bbd71 | 1793 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1794 | && !sym->backend_decl | |
1795 | && gsym && gsym->ns | |
1796 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1797 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1798 | { |
d896f9b3 | 1799 | if (!gsym->ns->proc_name->backend_decl) |
1800 | { | |
1801 | /* By construction, the external function cannot be | |
1802 | a contained procedure. */ | |
1803 | locus old_loc; | |
d896f9b3 | 1804 | |
4671339c | 1805 | gfc_save_backend_locus (&old_loc); |
9078126c | 1806 | push_cfun (NULL); |
d896f9b3 | 1807 | |
1808 | gfc_create_function_decl (gsym->ns, true); | |
1809 | ||
1810 | pop_cfun (); | |
4671339c | 1811 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1812 | } |
1813 | ||
83aeedb9 | 1814 | /* If the namespace has entries, the proc_name is the |
1815 | entry master. Find the entry and use its backend_decl. | |
1816 | otherwise, use the proc_name backend_decl. */ | |
1817 | if (gsym->ns->entries) | |
1818 | { | |
1819 | gfc_entry_list *entry = gsym->ns->entries; | |
1820 | ||
1821 | for (; entry; entry = entry->next) | |
1822 | { | |
1823 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1824 | { | |
1825 | sym->backend_decl = entry->sym->backend_decl; | |
1826 | break; | |
1827 | } | |
1828 | } | |
1829 | } | |
1830 | else | |
40c74b02 | 1831 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1832 | |
1833 | if (sym->backend_decl) | |
40c74b02 | 1834 | { |
1835 | /* Avoid problems of double deallocation of the backend declaration | |
1836 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1837 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1838 | sym->attr.use_assoc = 0; | |
1839 | ||
1840 | return sym->backend_decl; | |
1841 | } | |
83aeedb9 | 1842 | } |
1843 | ||
7ea64434 | 1844 | /* See if this is a module procedure from the same file. If so, |
1845 | return the backend_decl. */ | |
1846 | if (sym->module) | |
1847 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1848 | ||
c8b913ab | 1849 | module_sym: |
1850 | if (gsym && gsym->ns | |
1851 | && (gsym->type == GSYM_MODULE | |
1852 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 1853 | { |
1854 | gfc_symbol *s; | |
1855 | ||
1856 | s = NULL; | |
c8b913ab | 1857 | if (gsym->type == GSYM_MODULE) |
1858 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1859 | else | |
1860 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
1861 | ||
7ea64434 | 1862 | if (s && s->backend_decl) |
1863 | { | |
85ec2f13 | 1864 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1865 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1866 | true); | |
1867 | else if (sym->ts.type == BT_CHARACTER) | |
1868 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1869 | sym->backend_decl = s->backend_decl; |
1870 | return sym->backend_decl; | |
1871 | } | |
1872 | } | |
1873 | ||
4ee9c684 | 1874 | if (sym->attr.intrinsic) |
1875 | { | |
1876 | /* Call the resolution function to get the actual name. This is | |
1877 | a nasty hack which relies on the resolution functions only looking | |
1878 | at the first argument. We pass NULL for the second argument | |
1879 | otherwise things like AINT get confused. */ | |
1880 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1881 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1882 | |
1883 | memset (&e, 0, sizeof (e)); | |
1884 | e.expr_type = EXPR_FUNCTION; | |
1885 | ||
1886 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1887 | gcc_assert (isym->formal); |
4ee9c684 | 1888 | argexpr.ts = isym->formal->ts; |
1889 | ||
1890 | if (isym->formal->next == NULL) | |
1891 | isym->resolve.f1 (&e, &argexpr); | |
1892 | else | |
1893 | { | |
37e0271a | 1894 | if (isym->formal->next->next == NULL) |
1895 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1896 | else | |
1897 | { | |
7fe55cc9 | 1898 | if (isym->formal->next->next->next == NULL) |
1899 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1900 | else | |
1901 | { | |
1902 | /* All specific intrinsics take less than 5 arguments. */ | |
1903 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1904 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1905 | } | |
37e0271a | 1906 | } |
4ee9c684 | 1907 | } |
bdaed7d2 | 1908 | |
829d7a08 | 1909 | if (flag_f2c |
bdaed7d2 | 1910 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
1911 | || e.ts.type == BT_COMPLEX)) | |
1912 | { | |
1913 | /* Specific which needs a different implementation if f2c | |
1914 | calling conventions are used. */ | |
17000b91 | 1915 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1916 | } |
1917 | else | |
17000b91 | 1918 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1919 | |
4ee9c684 | 1920 | name = get_identifier (s); |
1921 | mangled_name = name; | |
1922 | } | |
1923 | else | |
1924 | { | |
1925 | name = gfc_sym_identifier (sym); | |
1926 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1927 | } | |
1928 | ||
1929 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1930 | fndecl = build_decl (input_location, |
1931 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1932 | |
e27454ee | 1933 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1934 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1935 | the opposite of declaring a function as static in C). */ |
e27454ee | 1936 | DECL_EXTERNAL (fndecl) = 1; |
1937 | TREE_PUBLIC (fndecl) = 1; | |
1938 | ||
1236e28b | 1939 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1940 | decl_attributes (&fndecl, attributes, 0); | |
1941 | ||
1942 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 1943 | |
1944 | /* Set the context of this decl. */ | |
1945 | if (0 && sym->ns && sym->ns->proc_name) | |
1946 | { | |
1947 | /* TODO: Add external decls to the appropriate scope. */ | |
1948 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
1949 | } | |
1950 | else | |
1951 | { | |
f888a3fb | 1952 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 1953 | DECL_CONTEXT (fndecl) = NULL_TREE; |
1954 | } | |
1955 | ||
4ee9c684 | 1956 | /* Set attributes for PURE functions. A call to PURE function in the |
1957 | Fortran 95 sense is both pure and without side effects in the C | |
1958 | sense. */ | |
bead0399 | 1959 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 1960 | { |
4d4b9f0e | 1961 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1962 | DECL_PURE_P (fndecl) = 1; |
be393645 | 1963 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
1964 | parameters and don't use alternate returns (is this | |
1965 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 1966 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 1967 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 1968 | } |
1969 | ||
6e27d773 | 1970 | /* Mark non-returning functions. */ |
1971 | if (sym->attr.noreturn) | |
1972 | TREE_THIS_VOLATILE(fndecl) = 1; | |
1973 | ||
4ee9c684 | 1974 | sym->backend_decl = fndecl; |
1975 | ||
1976 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
1977 | pushdecl_top_level (fndecl); | |
1978 | ||
15b28553 | 1979 | if (sym->formal_ns |
1980 | && sym->formal_ns->proc_name == sym | |
1981 | && sym->formal_ns->omp_declare_simd) | |
1982 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
1983 | ||
4ee9c684 | 1984 | return fndecl; |
1985 | } | |
1986 | ||
1987 | ||
1988 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 1989 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
1990 | a master function with alternate entry points. */ | |
4ee9c684 | 1991 | |
1b716045 | 1992 | static void |
d896f9b3 | 1993 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 1994 | { |
36b0a1b0 | 1995 | tree fndecl, type, attributes; |
4ee9c684 | 1996 | symbol_attribute attr; |
1b716045 | 1997 | tree result_decl; |
4ee9c684 | 1998 | gfc_formal_arglist *f; |
1999 | ||
22d678e8 | 2000 | gcc_assert (!sym->attr.external); |
4ee9c684 | 2001 | |
802532b9 | 2002 | if (sym->backend_decl) |
2003 | return; | |
2004 | ||
b31f705b | 2005 | /* Set the line and filename. sym->declared_at seems to point to the |
2006 | last statement for subroutines, but it'll do for now. */ | |
2007 | gfc_set_backend_locus (&sym->declared_at); | |
2008 | ||
4ee9c684 | 2009 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2010 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2011 | || DECL_FILE_SCOPE_P (current_function_decl) |
2012 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2013 | == NAMESPACE_DECL)); | |
4ee9c684 | 2014 | |
2015 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2016 | fndecl = build_decl (input_location, |
2017 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2018 | |
1236e28b | 2019 | attr = sym->attr; |
2020 | ||
e27454ee | 2021 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2022 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2023 | the opposite of declaring a function as static in C). */ |
e27454ee | 2024 | DECL_EXTERNAL (fndecl) = 0; |
2025 | ||
7d6b5754 | 2026 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2027 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2028 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2029 | && flag_module_private))) |
7d6b5754 | 2030 | sym->attr.access = ACCESS_PRIVATE; |
2031 | ||
e27454ee | 2032 | if (!current_function_decl |
c5cb468c | 2033 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2034 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2035 | || sym->attr.public_used)) | |
e27454ee | 2036 | TREE_PUBLIC (fndecl) = 1; |
2037 | ||
9e45357a | 2038 | if (sym->attr.referenced || sym->attr.entry_master) |
2039 | TREE_USED (fndecl) = 1; | |
2040 | ||
1236e28b | 2041 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2042 | decl_attributes (&fndecl, attributes, 0); | |
2043 | ||
4ee9c684 | 2044 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2045 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2046 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2047 | result_decl = NULL_TREE; |
2048 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2049 | if (attr.function) | |
2050 | { | |
2051 | if (gfc_return_by_reference (sym)) | |
2052 | type = void_type_node; | |
2053 | else | |
2054 | { | |
2055 | if (sym->result != sym) | |
2056 | result_decl = gfc_sym_identifier (sym->result); | |
2057 | ||
2058 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2059 | } | |
2060 | } | |
2061 | else | |
2062 | { | |
2063 | /* Look for alternate return placeholders. */ | |
2064 | int has_alternate_returns = 0; | |
6777213b | 2065 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2066 | { |
2067 | if (f->sym == NULL) | |
2068 | { | |
2069 | has_alternate_returns = 1; | |
2070 | break; | |
2071 | } | |
2072 | } | |
2073 | ||
2074 | if (has_alternate_returns) | |
2075 | type = integer_type_node; | |
2076 | else | |
2077 | type = void_type_node; | |
2078 | } | |
2079 | ||
e60a6f7b | 2080 | result_decl = build_decl (input_location, |
2081 | RESULT_DECL, result_decl, type); | |
540edea7 | 2082 | DECL_ARTIFICIAL (result_decl) = 1; |
2083 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2084 | DECL_CONTEXT (result_decl) = fndecl; |
2085 | DECL_RESULT (fndecl) = result_decl; | |
2086 | ||
2087 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2088 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2089 | |
4ee9c684 | 2090 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2091 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2092 | |
f888a3fb | 2093 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2094 | Fortran 95 sense is both pure and without side effects in the C |
2095 | sense. */ | |
bead0399 | 2096 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2097 | { |
be393645 | 2098 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2099 | including an alternate return. In that case it can also be |
231e961a | 2100 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2101 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2102 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2103 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2104 | } | |
2105 | ||
36b0a1b0 | 2106 | |
4ee9c684 | 2107 | /* Layout the function declaration and put it in the binding level |
2108 | of the current function. */ | |
d896f9b3 | 2109 | |
4c197fd0 | 2110 | if (global) |
d896f9b3 | 2111 | pushdecl_top_level (fndecl); |
2112 | else | |
2113 | pushdecl (fndecl); | |
1b716045 | 2114 | |
16a40513 | 2115 | /* Perform name mangling if this is a top level or module procedure. */ |
2116 | if (current_function_decl == NULL_TREE) | |
2117 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2118 | ||
1b716045 | 2119 | sym->backend_decl = fndecl; |
2120 | } | |
2121 | ||
2122 | ||
2123 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2124 | ||
2125 | static void | |
2126 | create_function_arglist (gfc_symbol * sym) | |
2127 | { | |
2128 | tree fndecl; | |
2129 | gfc_formal_arglist *f; | |
d4163395 | 2130 | tree typelist, hidden_typelist; |
2131 | tree arglist, hidden_arglist; | |
1b716045 | 2132 | tree type; |
2133 | tree parm; | |
2134 | ||
2135 | fndecl = sym->backend_decl; | |
2136 | ||
e4b2c26c | 2137 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2138 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2139 | arglist = NULL_TREE; |
d4163395 | 2140 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2141 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2142 | |
2143 | if (sym->attr.entry_master) | |
2144 | { | |
2145 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2146 | parm = build_decl (input_location, |
2147 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2148 | |
1b716045 | 2149 | DECL_CONTEXT (parm) = fndecl; |
2150 | DECL_ARG_TYPE (parm) = type; | |
2151 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2152 | gfc_finish_decl (parm); |
d95efb59 | 2153 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2154 | |
2155 | arglist = chainon (arglist, parm); | |
2156 | typelist = TREE_CHAIN (typelist); | |
2157 | } | |
2158 | ||
e4b2c26c | 2159 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2160 | { |
d4163395 | 2161 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2162 | |
e4b2c26c | 2163 | if (sym->ts.type == BT_CHARACTER) |
2164 | { | |
e4b2c26c | 2165 | /* Length of character result. */ |
d4163395 | 2166 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2167 | |
e60a6f7b | 2168 | length = build_decl (input_location, |
2169 | PARM_DECL, | |
e4b2c26c | 2170 | get_identifier (".__result"), |
d4163395 | 2171 | len_type); |
eeebe20b | 2172 | if (!sym->ts.u.cl->length) |
e4b2c26c | 2173 | { |
eeebe20b | 2174 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2175 | TREE_USED (length) = 1; |
4ee9c684 | 2176 | } |
22d678e8 | 2177 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2178 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2179 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2180 | TREE_READONLY (length) = 1; |
b5b40b3f | 2181 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2182 | gfc_finish_decl (length); |
eeebe20b | 2183 | if (sym->ts.u.cl->backend_decl == NULL |
2184 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2185 | { |
2186 | gfc_symbol *arg; | |
2187 | tree backend_decl; | |
4ee9c684 | 2188 | |
eeebe20b | 2189 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2190 | { |
e60a6f7b | 2191 | tree len = build_decl (input_location, |
2192 | VAR_DECL, | |
d4163395 | 2193 | get_identifier ("..__result"), |
2194 | gfc_charlen_type_node); | |
2195 | DECL_ARTIFICIAL (len) = 1; | |
2196 | TREE_USED (len) = 1; | |
eeebe20b | 2197 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2198 | } |
4ee9c684 | 2199 | |
d4163395 | 2200 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2201 | arg = sym->result ? sym->result : sym; | |
2202 | backend_decl = arg->backend_decl; | |
2203 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2204 | type. */ | |
2205 | arg->backend_decl = NULL; | |
2206 | type = gfc_sym_type (arg); | |
2207 | arg->backend_decl = backend_decl; | |
2208 | type = build_reference_type (type); | |
2209 | } | |
2210 | } | |
4ee9c684 | 2211 | |
e60a6f7b | 2212 | parm = build_decl (input_location, |
2213 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2214 | |
d4163395 | 2215 | DECL_CONTEXT (parm) = fndecl; |
2216 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2217 | TREE_READONLY (parm) = 1; | |
2218 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2219 | gfc_finish_decl (parm); |
4ee9c684 | 2220 | |
d4163395 | 2221 | arglist = chainon (arglist, parm); |
2222 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2223 | |
d4163395 | 2224 | if (sym->ts.type == BT_CHARACTER) |
2225 | { | |
2226 | gfc_allocate_lang_decl (parm); | |
2227 | arglist = chainon (arglist, length); | |
e4b2c26c | 2228 | typelist = TREE_CHAIN (typelist); |
2229 | } | |
2230 | } | |
4ee9c684 | 2231 | |
d4163395 | 2232 | hidden_typelist = typelist; |
6777213b | 2233 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2234 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2235 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2236 | ||
6777213b | 2237 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2238 | { |
2239 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2240 | |
e4b2c26c | 2241 | /* Ignore alternate returns. */ |
2242 | if (f->sym == NULL) | |
2243 | continue; | |
4ee9c684 | 2244 | |
e4b2c26c | 2245 | type = TREE_VALUE (typelist); |
4ee9c684 | 2246 | |
296db1d1 | 2247 | if (f->sym->ts.type == BT_CHARACTER |
2248 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2249 | { |
2250 | tree len_type = TREE_VALUE (hidden_typelist); | |
2251 | tree length = NULL_TREE; | |
617125a6 | 2252 | if (!f->sym->ts.deferred) |
2253 | gcc_assert (len_type == gfc_charlen_type_node); | |
2254 | else | |
2255 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2256 | |
2257 | strcpy (&name[1], f->sym->name); | |
2258 | name[0] = '_'; | |
e60a6f7b | 2259 | length = build_decl (input_location, |
2260 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2261 | |
d4163395 | 2262 | hidden_arglist = chainon (hidden_arglist, length); |
2263 | DECL_CONTEXT (length) = fndecl; | |
2264 | DECL_ARTIFICIAL (length) = 1; | |
2265 | DECL_ARG_TYPE (length) = len_type; | |
2266 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2267 | gfc_finish_decl (length); |
4ee9c684 | 2268 | |
a4abf8a0 | 2269 | /* Remember the passed value. */ |
a90fe829 | 2270 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2271 | { |
2272 | /* This can happen if the same type is used for multiple | |
2273 | arguments. We need to copy cl as otherwise | |
2274 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2275 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2276 | } |
eeebe20b | 2277 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2278 | |
d4163395 | 2279 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2280 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2281 | { |
d4163395 | 2282 | TREE_USED (length) = 1; |
eeebe20b | 2283 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2284 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2285 | } |
2286 | ||
2287 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2288 | ||
eeebe20b | 2289 | if (f->sym->ts.u.cl->backend_decl == NULL |
2290 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2291 | { |
eeebe20b | 2292 | if (f->sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2293 | gfc_create_string_length (f->sym); |
2294 | ||
2295 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2296 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2297 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2298 | else | |
2299 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2300 | } |
4ee9c684 | 2301 | } |
532c2d79 | 2302 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2303 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2304 | Thus, we will use a hidden argument in that case. */ |
2305 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2306 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
532c2d79 | 2307 | && f->sym->ts.type != BT_DERIVED) |
2308 | { | |
2309 | tree tmp; | |
2310 | strcpy (&name[1], f->sym->name); | |
2311 | name[0] = '_'; | |
2312 | tmp = build_decl (input_location, | |
2313 | PARM_DECL, get_identifier (name), | |
2314 | boolean_type_node); | |
2315 | ||
2316 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2317 | DECL_CONTEXT (tmp) = fndecl; | |
2318 | DECL_ARTIFICIAL (tmp) = 1; | |
2319 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2320 | TREE_READONLY (tmp) = 1; | |
2321 | gfc_finish_decl (tmp); | |
2322 | } | |
4ee9c684 | 2323 | |
d4163395 | 2324 | /* For non-constant length array arguments, make sure they use |
2325 | a different type node from TYPE_ARG_TYPES type. */ | |
2326 | if (f->sym->attr.dimension | |
2327 | && type == TREE_VALUE (typelist) | |
2328 | && TREE_CODE (type) == POINTER_TYPE | |
2329 | && GFC_ARRAY_TYPE_P (type) | |
2330 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2331 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2332 | { | |
2333 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2334 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2335 | else | |
2336 | type = gfc_sym_type (f->sym); | |
2337 | } | |
2338 | ||
cad0ddcf | 2339 | if (f->sym->attr.proc_pointer) |
2340 | type = build_pointer_type (type); | |
2341 | ||
2364aa60 | 2342 | if (f->sym->attr.volatile_) |
2343 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2344 | ||
69b1505f | 2345 | /* Build the argument declaration. */ |
e60a6f7b | 2346 | parm = build_decl (input_location, |
2347 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2348 | |
2364aa60 | 2349 | if (f->sym->attr.volatile_) |
2350 | { | |
2351 | TREE_THIS_VOLATILE (parm) = 1; | |
2352 | TREE_SIDE_EFFECTS (parm) = 1; | |
2353 | } | |
2354 | ||
d4163395 | 2355 | /* Fill in arg stuff. */ |
2356 | DECL_CONTEXT (parm) = fndecl; | |
2357 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2358 | /* All implementation args except for VALUE are read-only. */ |
2359 | if (!f->sym->attr.value) | |
2360 | TREE_READONLY (parm) = 1; | |
98923a84 | 2361 | if (POINTER_TYPE_P (type) |
2362 | && (!f->sym->attr.proc_pointer | |
2363 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2364 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2365 | |
b9c7fce7 | 2366 | gfc_finish_decl (parm); |
cf5f881f | 2367 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2368 | |
2369 | f->sym->backend_decl = parm; | |
2370 | ||
7dce33fe | 2371 | /* Coarrays which are descriptorless or assumed-shape pass with |
2372 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2373 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2374 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2375 | && !f->sym->attr.allocatable) | |
2376 | || (f->sym->ts.type == BT_CLASS | |
2377 | && CLASS_DATA (f->sym)->attr.codimension | |
2378 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2379 | { |
2380 | tree caf_type; | |
2381 | tree token; | |
2382 | tree offset; | |
2383 | ||
2384 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2385 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2386 | caf_type = f->sym->ts.type == BT_CLASS |
2387 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2388 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2389 | |
85c94a64 | 2390 | token = build_decl (input_location, PARM_DECL, |
2391 | create_tmp_var_name ("caf_token"), | |
2392 | build_qualified_type (pvoid_type_node, | |
2393 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2394 | if ((f->sym->ts.type != BT_CLASS |
2395 | && f->sym->as->type != AS_DEFERRED) | |
2396 | || (f->sym->ts.type == BT_CLASS | |
2397 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2398 | { |
2399 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2400 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2401 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2402 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2403 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2404 | } | |
2405 | else | |
2406 | { | |
2407 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2408 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2409 | } | |
a90fe829 | 2410 | |
85c94a64 | 2411 | DECL_CONTEXT (token) = fndecl; |
2412 | DECL_ARTIFICIAL (token) = 1; | |
2413 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2414 | TREE_READONLY (token) = 1; | |
2415 | hidden_arglist = chainon (hidden_arglist, token); | |
2416 | gfc_finish_decl (token); | |
2417 | ||
85c94a64 | 2418 | offset = build_decl (input_location, PARM_DECL, |
2419 | create_tmp_var_name ("caf_offset"), | |
2420 | gfc_array_index_type); | |
2421 | ||
d44f2f7c | 2422 | if ((f->sym->ts.type != BT_CLASS |
2423 | && f->sym->as->type != AS_DEFERRED) | |
2424 | || (f->sym->ts.type == BT_CLASS | |
2425 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2426 | { |
2427 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2428 | == NULL_TREE); | |
2429 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2430 | } | |
2431 | else | |
2432 | { | |
2433 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2434 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2435 | } | |
85c94a64 | 2436 | DECL_CONTEXT (offset) = fndecl; |
2437 | DECL_ARTIFICIAL (offset) = 1; | |
2438 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2439 | TREE_READONLY (offset) = 1; | |
2440 | hidden_arglist = chainon (hidden_arglist, offset); | |
2441 | gfc_finish_decl (offset); | |
2442 | } | |
2443 | ||
d4163395 | 2444 | arglist = chainon (arglist, parm); |
e4b2c26c | 2445 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2446 | } |
e4b2c26c | 2447 | |
465e4a95 | 2448 | /* Add the hidden string length parameters, unless the procedure |
2449 | is bind(C). */ | |
2450 | if (!sym->attr.is_bind_c) | |
2451 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2452 | |
ebe27ea2 | 2453 | gcc_assert (hidden_typelist == NULL_TREE |
2454 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2455 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2456 | } |
e4b2c26c | 2457 | |
1b716045 | 2458 | /* Do the setup necessary before generating the body of a function. */ |
2459 | ||
2460 | static void | |
2461 | trans_function_start (gfc_symbol * sym) | |
2462 | { | |
2463 | tree fndecl; | |
2464 | ||
2465 | fndecl = sym->backend_decl; | |
2466 | ||
f888a3fb | 2467 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2468 | current_function_decl = fndecl; |
2469 | ||
f888a3fb | 2470 | /* Let the world know what we're about to do. */ |
1b716045 | 2471 | announce_function (fndecl); |
2472 | ||
16a40513 | 2473 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2474 | { |
f888a3fb | 2475 | /* Create RTL for function declaration. */ |
1b716045 | 2476 | rest_of_decl_compilation (fndecl, 1, 0); |
2477 | } | |
2478 | ||
f888a3fb | 2479 | /* Create RTL for function definition. */ |
1b716045 | 2480 | make_decl_rtl (fndecl); |
2481 | ||
00cf115c | 2482 | allocate_struct_function (fndecl, false); |
1b716045 | 2483 | |
f888a3fb | 2484 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2485 | pushlevel (); |
1b716045 | 2486 | } |
2487 | ||
2488 | /* Create thunks for alternate entry points. */ | |
2489 | ||
2490 | static void | |
d896f9b3 | 2491 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2492 | { |
2493 | gfc_formal_arglist *formal; | |
2494 | gfc_formal_arglist *thunk_formal; | |
2495 | gfc_entry_list *el; | |
2496 | gfc_symbol *thunk_sym; | |
2497 | stmtblock_t body; | |
2498 | tree thunk_fndecl; | |
1b716045 | 2499 | tree tmp; |
b31f705b | 2500 | locus old_loc; |
1b716045 | 2501 | |
2502 | /* This should always be a toplevel function. */ | |
22d678e8 | 2503 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2504 | |
4671339c | 2505 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2506 | for (el = ns->entries; el; el = el->next) |
2507 | { | |
f1f41a6c | 2508 | vec<tree, va_gc> *args = NULL; |
2509 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2510 | |
1b716045 | 2511 | thunk_sym = el->sym; |
a90fe829 | 2512 | |
d896f9b3 | 2513 | build_function_decl (thunk_sym, global); |
1b716045 | 2514 | create_function_arglist (thunk_sym); |
2515 | ||
2516 | trans_function_start (thunk_sym); | |
2517 | ||
2518 | thunk_fndecl = thunk_sym->backend_decl; | |
2519 | ||
e5004242 | 2520 | gfc_init_block (&body); |
1b716045 | 2521 | |
f888a3fb | 2522 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2523 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2524 | vec_safe_push (args, tmp); |
1b716045 | 2525 | |
c6871095 | 2526 | if (thunk_sym->attr.function) |
2527 | { | |
2528 | if (gfc_return_by_reference (ns->proc_name)) | |
2529 | { | |
2530 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2531 | vec_safe_push (args, ref); |
c6871095 | 2532 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2533 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2534 | } |
2535 | } | |
2536 | ||
6777213b | 2537 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2538 | formal = formal->next) | |
1b716045 | 2539 | { |
c6871095 | 2540 | /* Ignore alternate returns. */ |
2541 | if (formal->sym == NULL) | |
2542 | continue; | |
2543 | ||
1b716045 | 2544 | /* We don't have a clever way of identifying arguments, so resort to |
2545 | a brute-force search. */ | |
6777213b | 2546 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2547 | thunk_formal; |
2548 | thunk_formal = thunk_formal->next) | |
2549 | { | |
2550 | if (thunk_formal->sym == formal->sym) | |
2551 | break; | |
2552 | } | |
2553 | ||
2554 | if (thunk_formal) | |
2555 | { | |
2556 | /* Pass the argument. */ | |
d95efb59 | 2557 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2558 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2559 | if (formal->sym->ts.type == BT_CHARACTER) |
2560 | { | |
eeebe20b | 2561 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2562 | vec_safe_push (string_args, tmp); |
1b716045 | 2563 | } |
2564 | } | |
2565 | else | |
2566 | { | |
2567 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2568 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2569 | if (formal->sym->ts.type == BT_CHARACTER) |
2570 | { | |
7d3075f6 | 2571 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2572 | vec_safe_push (string_args, tmp); |
1b716045 | 2573 | } |
2574 | } | |
2575 | } | |
2576 | ||
2577 | /* Call the master function. */ | |
f1f41a6c | 2578 | vec_safe_splice (args, string_args); |
1b716045 | 2579 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2580 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2581 | if (ns->proc_name->attr.mixed_entry_master) |
2582 | { | |
2583 | tree union_decl, field; | |
2584 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2585 | ||
e60a6f7b | 2586 | union_decl = build_decl (input_location, |
2587 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2588 | TREE_TYPE (master_type)); |
2589 | DECL_ARTIFICIAL (union_decl) = 1; | |
2590 | DECL_EXTERNAL (union_decl) = 0; | |
2591 | TREE_PUBLIC (union_decl) = 0; | |
2592 | TREE_USED (union_decl) = 1; | |
2593 | layout_decl (union_decl, 0); | |
2594 | pushdecl (union_decl); | |
2595 | ||
2596 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2597 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2598 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2599 | gfc_add_expr_to_block (&body, tmp); |
2600 | ||
2601 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2602 | field; field = DECL_CHAIN (field)) |
c6871095 | 2603 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2604 | thunk_sym->result->name) == 0) | |
2605 | break; | |
2606 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2607 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2608 | TREE_TYPE (field), union_decl, field, | |
2609 | NULL_TREE); | |
a90fe829 | 2610 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2611 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2612 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2613 | tmp = build1_v (RETURN_EXPR, tmp); |
2614 | } | |
2615 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2616 | != void_type_node) | |
2617 | { | |
fd779e1d | 2618 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2619 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2620 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2621 | tmp = build1_v (RETURN_EXPR, tmp); |
2622 | } | |
1b716045 | 2623 | gfc_add_expr_to_block (&body, tmp); |
2624 | ||
2625 | /* Finish off this function and send it for code generation. */ | |
2626 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2627 | tmp = getdecls (); |
cde2be84 | 2628 | poplevel (1, 1); |
1b716045 | 2629 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2630 | DECL_SAVED_TREE (thunk_fndecl) |
2631 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2632 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2633 | |
2634 | /* Output the GENERIC tree. */ | |
2635 | dump_function (TDI_original, thunk_fndecl); | |
2636 | ||
2637 | /* Store the end of the function, so that we get good line number | |
2638 | info for the epilogue. */ | |
2639 | cfun->function_end_locus = input_location; | |
2640 | ||
2641 | /* We're leaving the context of this function, so zap cfun. | |
2642 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2643 | tree_rest_of_compilation. */ | |
87d4aa85 | 2644 | set_cfun (NULL); |
1b716045 | 2645 | |
2646 | current_function_decl = NULL_TREE; | |
2647 | ||
35ee1c66 | 2648 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2649 | |
2650 | /* We share the symbols in the formal argument list with other entry | |
2651 | points and the master function. Clear them so that they are | |
2652 | recreated for each function. */ | |
6777213b | 2653 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2654 | formal = formal->next) | |
c6871095 | 2655 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2656 | { | |
2657 | formal->sym->backend_decl = NULL_TREE; | |
2658 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2659 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2660 | } |
2661 | ||
2662 | if (thunk_sym->attr.function) | |
1b716045 | 2663 | { |
c6871095 | 2664 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2665 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2666 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2667 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2668 | } |
2669 | } | |
b31f705b | 2670 | |
4671339c | 2671 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2672 | } |
2673 | ||
2674 | ||
2675 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2676 | points. If global is true, generate the function in the global binding |
2677 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2678 | |
2679 | void | |
d896f9b3 | 2680 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2681 | { |
2682 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2683 | build_function_decl (ns->proc_name, global); |
1b716045 | 2684 | |
f888a3fb | 2685 | /* Compile the entry thunks. */ |
1b716045 | 2686 | if (ns->entries) |
d896f9b3 | 2687 | build_entry_thunks (ns, global); |
1b716045 | 2688 | |
2689 | /* Now create the read argument list. */ | |
2690 | create_function_arglist (ns->proc_name); | |
15b28553 | 2691 | |
2692 | if (ns->omp_declare_simd) | |
2693 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2694 | } |
2695 | ||
c750cc52 | 2696 | /* Return the decl used to hold the function return value. If |
3350e716 | 2697 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2698 | |
2699 | tree | |
c750cc52 | 2700 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2701 | { |
c750cc52 | 2702 | tree decl; |
2703 | tree length; | |
2704 | tree this_fake_result_decl; | |
2705 | tree this_function_decl; | |
4ee9c684 | 2706 | |
2707 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2708 | ||
c750cc52 | 2709 | if (parent_flag) |
2710 | { | |
2711 | this_fake_result_decl = parent_fake_result_decl; | |
2712 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2713 | } | |
2714 | else | |
2715 | { | |
2716 | this_fake_result_decl = current_fake_result_decl; | |
2717 | this_function_decl = current_function_decl; | |
2718 | } | |
2719 | ||
c6871095 | 2720 | if (sym |
c750cc52 | 2721 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2722 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2723 | && sym != sym->ns->proc_name) |
2724 | { | |
d4163395 | 2725 | tree t = NULL, var; |
c750cc52 | 2726 | if (this_fake_result_decl != NULL) |
2727 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2728 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2729 | break; | |
2730 | if (t) | |
2731 | return TREE_VALUE (t); | |
c750cc52 | 2732 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2733 | ||
2734 | if (parent_flag) | |
2735 | this_fake_result_decl = parent_fake_result_decl; | |
2736 | else | |
2737 | this_fake_result_decl = current_fake_result_decl; | |
2738 | ||
d4163395 | 2739 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2740 | { |
2741 | tree field; | |
2742 | ||
2743 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2744 | field; field = DECL_CHAIN (field)) |
c6871095 | 2745 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2746 | sym->name) == 0) | |
2747 | break; | |
2748 | ||
2749 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2750 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2751 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2752 | } |
c750cc52 | 2753 | |
2754 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2755 | if (parent_flag) | |
2756 | gfc_add_decl_to_parent_function (var); | |
2757 | else | |
2758 | gfc_add_decl_to_function (var); | |
2759 | ||
d4163395 | 2760 | SET_DECL_VALUE_EXPR (var, decl); |
2761 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2762 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2763 | |
2764 | TREE_CHAIN (this_fake_result_decl) | |
2765 | = tree_cons (get_identifier (sym->name), var, | |
2766 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2767 | return var; |
c6871095 | 2768 | } |
2769 | ||
c750cc52 | 2770 | if (this_fake_result_decl != NULL_TREE) |
2771 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2772 | |
2773 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2774 | sym is NULL. */ | |
2775 | if (!sym) | |
2776 | return NULL_TREE; | |
2777 | ||
d4163395 | 2778 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2779 | { |
eeebe20b | 2780 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2781 | length = gfc_create_string_length (sym); |
2782 | else | |
eeebe20b | 2783 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2784 | if (TREE_CODE (length) == VAR_DECL |
2785 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2786 | gfc_add_decl_to_function (length); |
4ee9c684 | 2787 | } |
2788 | ||
2789 | if (gfc_return_by_reference (sym)) | |
2790 | { | |
c750cc52 | 2791 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2792 | |
c750cc52 | 2793 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2794 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2795 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2796 | |
2797 | TREE_USED (decl) = 1; | |
2798 | if (sym->as) | |
2799 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2800 | } | |
2801 | else | |
2802 | { | |
2803 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2804 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2805 | |
3350e716 | 2806 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2807 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2808 | VAR_DECL, get_identifier (name), |
3350e716 | 2809 | gfc_sym_type (sym)); |
2810 | else | |
1e71b314 | 2811 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2812 | VAR_DECL, get_identifier (name), |
3350e716 | 2813 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2814 | DECL_ARTIFICIAL (decl) = 1; |
2815 | DECL_EXTERNAL (decl) = 0; | |
2816 | TREE_PUBLIC (decl) = 0; | |
2817 | TREE_USED (decl) = 1; | |
764f1175 | 2818 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2819 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2820 | |
2821 | layout_decl (decl, 0); | |
cf5f881f | 2822 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 2823 | |
c750cc52 | 2824 | if (parent_flag) |
2825 | gfc_add_decl_to_parent_function (decl); | |
2826 | else | |
2827 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2828 | } |
2829 | ||
c750cc52 | 2830 | if (parent_flag) |
2831 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2832 | else | |
2833 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2834 | |
2835 | return decl; | |
2836 | } | |
2837 | ||
2838 | ||
2839 | /* Builds a function decl. The remaining parameters are the types of the | |
2840 | function arguments. Negative nargs indicates a varargs function. */ | |
2841 | ||
8ce86007 | 2842 | static tree |
2843 | build_library_function_decl_1 (tree name, const char *spec, | |
2844 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2845 | { |
f1f41a6c | 2846 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2847 | tree fntype; |
2848 | tree fndecl; | |
4ee9c684 | 2849 | int n; |
2850 | ||
2851 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2852 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2853 | |
4ee9c684 | 2854 | /* Create a list of the argument types. */ |
f1f41a6c | 2855 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2856 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2857 | { |
5edc3af9 | 2858 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2859 | arglist->quick_push (argtype); |
4ee9c684 | 2860 | } |
2861 | ||
2862 | /* Build the function type and decl. */ | |
5edc3af9 | 2863 | if (nargs >= 0) |
2864 | fntype = build_function_type_vec (rettype, arglist); | |
2865 | else | |
2866 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2867 | if (spec) |
2868 | { | |
2869 | tree attr_args = build_tree_list (NULL_TREE, | |
2870 | build_string (strlen (spec), spec)); | |
2871 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2872 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2873 | fntype = build_type_attribute_variant (fntype, attrs); | |
2874 | } | |
e60a6f7b | 2875 | fndecl = build_decl (input_location, |
2876 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2877 | |
2878 | /* Mark this decl as external. */ | |
2879 | DECL_EXTERNAL (fndecl) = 1; | |
2880 | TREE_PUBLIC (fndecl) = 1; | |
2881 | ||
4ee9c684 | 2882 | pushdecl (fndecl); |
2883 | ||
b2c4af5e | 2884 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2885 | |
2886 | return fndecl; | |
2887 | } | |
2888 | ||
8ce86007 | 2889 | /* Builds a function decl. The remaining parameters are the types of the |
2890 | function arguments. Negative nargs indicates a varargs function. */ | |
2891 | ||
2892 | tree | |
2893 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2894 | { | |
2895 | tree ret; | |
2896 | va_list args; | |
2897 | va_start (args, nargs); | |
2898 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2899 | va_end (args); | |
2900 | return ret; | |
2901 | } | |
2902 | ||
2903 | /* Builds a function decl. The remaining parameters are the types of the | |
2904 | function arguments. Negative nargs indicates a varargs function. | |
2905 | The SPEC parameter specifies the function argument and return type | |
2906 | specification according to the fnspec function type attribute. */ | |
2907 | ||
4bf69bc3 | 2908 | tree |
8ce86007 | 2909 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2910 | tree rettype, int nargs, ...) | |
2911 | { | |
2912 | tree ret; | |
2913 | va_list args; | |
2914 | va_start (args, nargs); | |
2915 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2916 | va_end (args); | |
2917 | return ret; | |
2918 | } | |
2919 | ||
4ee9c684 | 2920 | static void |
2921 | gfc_build_intrinsic_function_decls (void) | |
2922 | { | |
90ba9145 | 2923 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 2924 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 2925 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 2926 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 2927 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 2928 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 2929 | tree pchar1_type_node = gfc_get_pchar_type (1); |
2930 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 2931 | |
4ee9c684 | 2932 | /* String functions. */ |
241ecdc7 | 2933 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
2934 | get_identifier (PREFIX("compare_string")), "..R.R", | |
2935 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
2936 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2937 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 2938 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 2939 | |
2940 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
2941 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
2942 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
2943 | gfc_charlen_type_node, pchar1_type_node, | |
2944 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 2945 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 2946 | |
2947 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
2948 | get_identifier (PREFIX("string_len_trim")), "..R", | |
2949 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2950 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 2951 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 2952 | |
2953 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
2954 | get_identifier (PREFIX("string_index")), "..R.R.", | |
2955 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2956 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2957 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 2958 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 2959 | |
2960 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
2961 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
2962 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2963 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2964 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 2965 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 2966 | |
2967 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
2968 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
2969 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2970 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2971 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 2972 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 2973 | |
2974 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
2975 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
2976 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2977 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
2978 | pchar1_type_node); | |
2979 | ||
2980 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
2981 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
2982 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2983 | build_pointer_type (pchar1_type_node), integer_type_node, | |
2984 | integer_type_node); | |
2985 | ||
2986 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
2987 | get_identifier (PREFIX("adjustl")), ".W.R", | |
2988 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2989 | pchar1_type_node); | |
bc351485 | 2990 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 2991 | |
2992 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
2993 | get_identifier (PREFIX("adjustr")), ".W.R", | |
2994 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2995 | pchar1_type_node); | |
bc351485 | 2996 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 2997 | |
2998 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
2999 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3000 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3001 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3002 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3003 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3004 | |
3005 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3006 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3007 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3008 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3009 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3010 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3011 | |
3012 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3013 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3014 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3015 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3016 | pchar4_type_node); | |
bc351485 | 3017 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3018 | |
3019 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3020 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3021 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3022 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3023 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3024 | |
3025 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3026 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3027 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3028 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3029 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3030 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3031 | |
3032 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3033 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3034 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3035 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3036 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3037 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3038 | |
3039 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3040 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3041 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3042 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3043 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3044 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3045 | |
3046 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3047 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3048 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3049 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3050 | pchar4_type_node); | |
3051 | ||
3052 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3053 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3054 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3055 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3056 | integer_type_node); | |
3057 | ||
3058 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3059 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3060 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3061 | pchar4_type_node); | |
bc351485 | 3062 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3063 | |
3064 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3065 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3066 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3067 | pchar4_type_node); | |
bc351485 | 3068 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3069 | |
3070 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3071 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3072 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3073 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3074 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3075 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3076 | |
3077 | ||
3078 | /* Conversion between character kinds. */ | |
3079 | ||
241ecdc7 | 3080 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3081 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3082 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3083 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3084 | |
241ecdc7 | 3085 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3086 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3087 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3088 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3089 | |
40b806de | 3090 | /* Misc. functions. */ |
5fcc6ec2 | 3091 | |
241ecdc7 | 3092 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3093 | get_identifier (PREFIX("ttynam")), ".W", | |
3094 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3095 | integer_type_node); | |
3096 | ||
3097 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3098 | get_identifier (PREFIX("fdate")), ".W", | |
3099 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3100 | ||
3101 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3102 | get_identifier (PREFIX("ctime")), ".W", | |
3103 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3104 | gfc_int8_type_node); | |
3105 | ||
3106 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3107 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3108 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3109 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3110 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3111 | |
3112 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3113 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3114 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3115 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3116 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3117 | |
3118 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3119 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3120 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3121 | pvoid_type_node); | |
537824d1 | 3122 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3123 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3124 | |
72ce5390 | 3125 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3126 | get_identifier (PREFIX("system_clock_4")), | |
3127 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3128 | gfc_pint4_type_node); | |
3129 | ||
3130 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3131 | get_identifier (PREFIX("system_clock_8")), | |
3132 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3133 | gfc_pint8_type_node); | |
3134 | ||
4ee9c684 | 3135 | /* Power functions. */ |
76834664 | 3136 | { |
920e54ef | 3137 | tree ctype, rtype, itype, jtype; |
3138 | int rkind, ikind, jkind; | |
3139 | #define NIKINDS 3 | |
3140 | #define NRKINDS 4 | |
3141 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3142 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3143 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3144 | ||
3145 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3146 | { |
920e54ef | 3147 | itype = gfc_get_int_type (ikinds[ikind]); |
3148 | ||
3149 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3150 | { | |
3151 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3152 | if (itype && jtype) | |
3153 | { | |
3154 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3155 | ikinds[jkind]); | |
3156 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3157 | gfc_build_library_function_decl (get_identifier (name), | |
3158 | jtype, 2, jtype, itype); | |
2177d98b | 3159 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3160 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3161 | } |
3162 | } | |
3163 | ||
3164 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3165 | { |
920e54ef | 3166 | rtype = gfc_get_real_type (rkinds[rkind]); |
3167 | if (rtype && itype) | |
3168 | { | |
3169 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3170 | ikinds[ikind]); | |
3171 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3172 | gfc_build_library_function_decl (get_identifier (name), | |
3173 | rtype, 2, rtype, itype); | |
2177d98b | 3174 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3175 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3176 | } |
3177 | ||
3178 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3179 | if (ctype && itype) | |
3180 | { | |
3181 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3182 | ikinds[ikind]); | |
3183 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3184 | gfc_build_library_function_decl (get_identifier (name), | |
3185 | ctype, 2,ctype, itype); | |
2177d98b | 3186 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3187 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3188 | } |
76834664 | 3189 | } |
3190 | } | |
920e54ef | 3191 | #undef NIKINDS |
3192 | #undef NRKINDS | |
76834664 | 3193 | } |
3194 | ||
241ecdc7 | 3195 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3196 | get_identifier (PREFIX("ishftc4")), | |
3197 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3198 | gfc_int4_type_node); | |
bc351485 | 3199 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3200 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3201 | |
241ecdc7 | 3202 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3203 | get_identifier (PREFIX("ishftc8")), | |
3204 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3205 | gfc_int4_type_node); | |
bc351485 | 3206 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3207 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3208 | |
920e54ef | 3209 | if (gfc_int16_type_node) |
bc351485 | 3210 | { |
3211 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3212 | get_identifier (PREFIX("ishftc16")), |
3213 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3214 | gfc_int4_type_node); | |
bc351485 | 3215 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3216 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3217 | } | |
920e54ef | 3218 | |
4e8e57b0 | 3219 | /* BLAS functions. */ |
3220 | { | |
36c921b9 | 3221 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3222 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3223 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3224 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3225 | tree pz = build_pointer_type | |
3226 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3227 | ||
3228 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3229 | (get_identifier | |
829d7a08 | 3230 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3231 | void_type_node, 15, pchar_type_node, |
3232 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3233 | ps, pint, ps, ps, pint, integer_type_node, |
3234 | integer_type_node); | |
4e8e57b0 | 3235 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3236 | (get_identifier | |
829d7a08 | 3237 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3238 | void_type_node, 15, pchar_type_node, |
3239 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3240 | pd, pint, pd, pd, pint, integer_type_node, |
3241 | integer_type_node); | |
4e8e57b0 | 3242 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3243 | (get_identifier | |
829d7a08 | 3244 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3245 | void_type_node, 15, pchar_type_node, |
3246 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3247 | pc, pint, pc, pc, pint, integer_type_node, |
3248 | integer_type_node); | |
4e8e57b0 | 3249 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3250 | (get_identifier | |
829d7a08 | 3251 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3252 | void_type_node, 15, pchar_type_node, |
3253 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3254 | pz, pint, pz, pz, pint, integer_type_node, |
3255 | integer_type_node); | |
4e8e57b0 | 3256 | } |
3257 | ||
4ee9c684 | 3258 | /* Other functions. */ |
241ecdc7 | 3259 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3260 | get_identifier (PREFIX("size0")), ".R", | |
3261 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3262 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3263 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3264 | |
3265 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3266 | get_identifier (PREFIX("size1")), ".R", | |
3267 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3268 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3269 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3270 | |
3271 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3272 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3273 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3274 | } |
3275 | ||
3276 | ||
3277 | /* Make prototypes for runtime library functions. */ | |
3278 | ||
3279 | void | |
3280 | gfc_build_builtin_function_decls (void) | |
3281 | { | |
90ba9145 | 3282 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3283 | |
241ecdc7 | 3284 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3285 | get_identifier (PREFIX("stop_numeric")), | |
3286 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3287 | /* STOP doesn't return. */ |
98ccec97 | 3288 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3289 | ||
dff2ea5f | 3290 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3291 | get_identifier (PREFIX("stop_numeric_f08")), | |
3292 | void_type_node, 1, gfc_int4_type_node); | |
3293 | /* STOP doesn't return. */ | |
3294 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3295 | ||
241ecdc7 | 3296 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3297 | get_identifier (PREFIX("stop_string")), ".R.", | |
3298 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3299 | /* STOP doesn't return. */ |
241ecdc7 | 3300 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3301 | |
241ecdc7 | 3302 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3303 | get_identifier (PREFIX("error_stop_numeric")), | |
3304 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3305 | /* ERROR STOP doesn't return. */ |
3306 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3307 | ||
241ecdc7 | 3308 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3309 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3310 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3311 | /* ERROR STOP doesn't return. */ |
3312 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3313 | ||
241ecdc7 | 3314 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3315 | get_identifier (PREFIX("pause_numeric")), | |
3316 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3317 | |
241ecdc7 | 3318 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3319 | get_identifier (PREFIX("pause_string")), ".R.", | |
3320 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3321 | |
241ecdc7 | 3322 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3323 | get_identifier (PREFIX("runtime_error")), ".R", | |
3324 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3325 | /* The runtime_error function does not return. */ |
3326 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3327 | |
241ecdc7 | 3328 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3329 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3330 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3331 | /* The runtime_error_at function does not return. */ |
3332 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3333 | |
241ecdc7 | 3334 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3335 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3336 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3337 | ||
3338 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3339 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3340 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3341 | pchar_type_node); | |
3342 | ||
3343 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3344 | get_identifier (PREFIX("os_error")), ".R", | |
3345 | void_type_node, 1, pchar_type_node); | |
9915365e | 3346 | /* The runtime_error function does not return. */ |
3347 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3348 | ||
241ecdc7 | 3349 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3350 | get_identifier (PREFIX("set_args")), | |
3351 | void_type_node, 2, integer_type_node, | |
3352 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3353 | |
241ecdc7 | 3354 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3355 | get_identifier (PREFIX("set_fpe")), | |
3356 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3357 | |
d566c3e0 | 3358 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3359 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3360 | void_type_node, 1, pvoid_type_node); | |
3361 | ||
3362 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3363 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3364 | void_type_node, 1, pvoid_type_node); | |
3365 | ||
56c7c2d7 | 3366 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3367 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3368 | get_identifier (PREFIX("set_options")), "..R", | |
3369 | void_type_node, 2, integer_type_node, | |
3370 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3371 | |
241ecdc7 | 3372 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3373 | get_identifier (PREFIX("set_convert")), | |
3374 | void_type_node, 1, integer_type_node); | |
15774a8b | 3375 | |
241ecdc7 | 3376 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3377 | get_identifier (PREFIX("set_record_marker")), | |
3378 | void_type_node, 1, integer_type_node); | |
f23886ab | 3379 | |
241ecdc7 | 3380 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3381 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3382 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3383 | |
8ce86007 | 3384 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3385 | get_identifier (PREFIX("internal_pack")), ".r", |
3386 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3387 | |
8ce86007 | 3388 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3389 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3390 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3391 | ||
3392 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3393 | get_identifier (PREFIX("associated")), ".RR", | |
3394 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3395 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3396 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3397 | |
70b5944a | 3398 | /* Coarray library calls. */ |
4fe73152 | 3399 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3400 | { |
3401 | tree pint_type, pppchar_type; | |
3402 | ||
3403 | pint_type = build_pointer_type (integer_type_node); | |
3404 | pppchar_type | |
3405 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3406 | ||
3407 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3408 | get_identifier (PREFIX("caf_init")), void_type_node, | |
53687b4e | 3409 | 2, pint_type, pppchar_type); |
70b5944a | 3410 | |
3411 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3412 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3413 | ||
d44f2f7c | 3414 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
3415 | get_identifier (PREFIX("caf_this_image")), integer_type_node, | |
3416 | 1, integer_type_node); | |
3417 | ||
3418 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
3419 | get_identifier (PREFIX("caf_num_images")), integer_type_node, | |
da82fa7c | 3420 | 2, integer_type_node, integer_type_node); |
d44f2f7c | 3421 | |
a961ca30 | 3422 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3423 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3424 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3425 | pchar_type_node, integer_type_node); |
3426 | ||
3427 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3428 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3429 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3430 | |
5f4a118e | 3431 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
9f1c76f9 | 3432 | get_identifier (PREFIX("caf_get")), ".R.RRRW", void_type_node, 9, |
5f4a118e | 3433 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3434 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3435 | boolean_type_node); | |
5f4a118e | 3436 | |
3437 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
9f1c76f9 | 3438 | get_identifier (PREFIX("caf_send")), ".R.RRRR", void_type_node, 9, |
5f4a118e | 3439 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3440 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3441 | boolean_type_node); | |
5f4a118e | 3442 | |
3443 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3444 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRR", void_type_node, | |
9f1c76f9 | 3445 | 13, pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
5f4a118e | 3446 | pvoid_type_node, pvoid_type_node, size_type_node, integer_type_node, |
9f1c76f9 | 3447 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3448 | boolean_type_node); | |
5f4a118e | 3449 | |
70b5944a | 3450 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3451 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3452 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3453 | |
3454 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3455 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3456 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3457 | pchar_type_node, integer_type_node); |
70b5944a | 3458 | |
3459 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3460 | get_identifier (PREFIX("caf_error_stop")), | |
3461 | void_type_node, 1, gfc_int4_type_node); | |
3462 | /* CAF's ERROR STOP doesn't return. */ | |
3463 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3464 | ||
3465 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3466 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3467 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3468 | /* CAF's ERROR STOP doesn't return. */ | |
3469 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3470 | |
97b9ac34 | 3471 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3472 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3473 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3474 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3475 | ||
3476 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3477 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3478 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3479 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3480 | ||
3481 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3482 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3483 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
3484 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3485 | integer_type_node, integer_type_node); | |
3486 | ||
3487 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3488 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3489 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3490 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3491 | integer_type_node, integer_type_node); | |
3492 | ||
498b946e | 3493 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3494 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3495 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3496 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3497 | ||
3498 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3499 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3500 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
498b946e | 3501 | pint_type, pchar_type_node, integer_type_node); |
3502 | ||
52306a18 | 3503 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3504 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3505 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3506 | pint_type, pchar_type_node, integer_type_node); | |
3507 | ||
79ed4a8e | 3508 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3509 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3510 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3511 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3512 | ||
3513 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3514 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3515 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3516 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3517 | ||
e39efcef | 3518 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3519 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3520 | void_type_node, 8, pvoid_type_node, | |
3521 | build_pointer_type (build_varargs_function_type_list (void_type_node, | |
3522 | NULL_TREE)), | |
3523 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3524 | integer_type_node, integer_type_node); | |
3525 | ||
79ed4a8e | 3526 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3527 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3528 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3529 | pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3530 | } |
3531 | ||
4ee9c684 | 3532 | gfc_build_intrinsic_function_decls (); |
3533 | gfc_build_intrinsic_lib_fndecls (); | |
3534 | gfc_build_io_library_fndecls (); | |
3535 | } | |
3536 | ||
3537 | ||
231e961a | 3538 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3539 | |
c5faa799 | 3540 | static void |
3541 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3542 | gfc_wrapped_block *block) | |
4ee9c684 | 3543 | { |
c5faa799 | 3544 | stmtblock_t init; |
4ee9c684 | 3545 | |
b9c7fce7 | 3546 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3547 | |
c5faa799 | 3548 | gfc_start_block (&init); |
4ee9c684 | 3549 | |
3550 | /* Evaluate the string length expression. */ | |
c5faa799 | 3551 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3552 | |
c5faa799 | 3553 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3554 | |
c5faa799 | 3555 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3556 | } |
3557 | ||
3558 | ||
3559 | /* Allocate and cleanup an automatic character variable. */ | |
3560 | ||
c5faa799 | 3561 | static void |
3562 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3563 | { |
c5faa799 | 3564 | stmtblock_t init; |
4ee9c684 | 3565 | tree decl; |
4ee9c684 | 3566 | tree tmp; |
3567 | ||
22d678e8 | 3568 | gcc_assert (sym->backend_decl); |
eeebe20b | 3569 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3570 | |
3714c8b6 | 3571 | gfc_init_block (&init); |
4ee9c684 | 3572 | |
3573 | /* Evaluate the string length expression. */ | |
c5faa799 | 3574 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3575 | |
c5faa799 | 3576 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3577 | |
4ee9c684 | 3578 | decl = sym->backend_decl; |
3579 | ||
afcf285e | 3580 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3581 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3582 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3583 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3584 | |
c5faa799 | 3585 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3586 | } |
3587 | ||
c8f1568f | 3588 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3589 | ||
c5faa799 | 3590 | static void |
3591 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3592 | { |
c5faa799 | 3593 | stmtblock_t init; |
c8f1568f | 3594 | |
3595 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3596 | gfc_start_block (&init); |
c8f1568f | 3597 | |
3598 | /* Set the initial value to length. See the comments in | |
3599 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3600 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3601 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3602 | |
c5faa799 | 3603 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3604 | } |
3605 | ||
d4163395 | 3606 | static void |
3607 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3608 | { | |
3609 | tree t = *tp, var, val; | |
3610 | ||
3611 | if (t == NULL || t == error_mark_node) | |
3612 | return; | |
3613 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3614 | return; | |
3615 | ||
3616 | if (TREE_CODE (t) == SAVE_EXPR) | |
3617 | { | |
3618 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3619 | { | |
3620 | *tp = TREE_OPERAND (t, 0); | |
3621 | return; | |
3622 | } | |
3623 | val = TREE_OPERAND (t, 0); | |
3624 | } | |
3625 | else | |
3626 | val = t; | |
3627 | ||
3628 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3629 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3630 | gfc_add_modify (body, var, val); |
d4163395 | 3631 | if (TREE_CODE (t) == SAVE_EXPR) |
3632 | TREE_OPERAND (t, 0) = var; | |
3633 | *tp = var; | |
3634 | } | |
3635 | ||
3636 | static void | |
3637 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3638 | { | |
3639 | tree t; | |
3640 | ||
3641 | if (type == NULL || type == error_mark_node) | |
3642 | return; | |
3643 | ||
3644 | type = TYPE_MAIN_VARIANT (type); | |
3645 | ||
3646 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3647 | { | |
3648 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3649 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3650 | ||
3651 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3652 | { | |
3653 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3654 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3655 | } | |
3656 | } | |
3657 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3658 | { | |
3659 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3660 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3661 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3662 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3663 | ||
3664 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3665 | { | |
3666 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3667 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3668 | } | |
3669 | } | |
3670 | } | |
3671 | ||
3672 | /* Make sure all type sizes and array domains are either constant, | |
3673 | or variable or parameter decls. This is a simplified variant | |
3674 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3675 | variables in the expressions have been gimplified yet. | |
3676 | As type sizes and domains for various variable length arrays | |
3677 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3678 | time, without this routine gimplify_type_sizes in the middle-end | |
3679 | could result in the type sizes being gimplified earlier than where | |
3680 | those variables are initialized. */ | |
3681 | ||
3682 | void | |
3683 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3684 | { | |
3685 | tree type = TREE_TYPE (sym->backend_decl); | |
3686 | ||
3687 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3688 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3689 | { | |
3690 | if (! current_fake_result_decl) | |
3691 | return; | |
3692 | ||
3693 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3694 | } | |
3695 | ||
3696 | while (POINTER_TYPE_P (type)) | |
3697 | type = TREE_TYPE (type); | |
3698 | ||
3699 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3700 | { | |
3701 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3702 | ||
3703 | while (POINTER_TYPE_P (etype)) | |
3704 | etype = TREE_TYPE (etype); | |
3705 | ||
3706 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3707 | } | |
3708 | ||
3709 | gfc_trans_vla_type_sizes_1 (type, body); | |
3710 | } | |
3711 | ||
4ee9c684 | 3712 | |
f0d4969f | 3713 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3714 | and using trans_assignment to do the work. Set dealloc to false |
3715 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3716 | void |
3717 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3718 | { |
f0d4969f | 3719 | gfc_expr *e; |
87114d2e | 3720 | tree tmp; |
3721 | tree present; | |
3722 | ||
c5faa799 | 3723 | gcc_assert (block); |
3724 | ||
f0d4969f | 3725 | gcc_assert (!sym->attr.allocatable); |
3726 | gfc_set_sym_referenced (sym); | |
3727 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3728 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3729 | if (sym->attr.dummy && (sym->attr.optional |
3730 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3731 | { |
f0d4969f | 3732 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3733 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3734 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3735 | } |
c5faa799 | 3736 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3737 | gfc_free_expr (e); |
87114d2e | 3738 | } |
3739 | ||
3740 | ||
8714fc76 | 3741 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3742 | them their default initializer, if they do not have allocatable | |
293d72e0 | 3743 | components, they have their allocatable components deallocated. */ |
8714fc76 | 3744 | |
c5faa799 | 3745 | static void |
3746 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3747 | { |
c5faa799 | 3748 | stmtblock_t init; |
f0d4969f | 3749 | gfc_formal_arglist *f; |
8714fc76 | 3750 | tree tmp; |
5907c3ea | 3751 | tree present; |
f0d4969f | 3752 | |
c5faa799 | 3753 | gfc_init_block (&init); |
6777213b | 3754 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3755 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3756 | && !f->sym->attr.pointer |
3757 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3758 | { |
942ba353 | 3759 | tmp = NULL_TREE; |
3760 | ||
3761 | /* Note: Allocatables are excluded as they are already handled | |
3762 | by the caller. */ | |
3763 | if (!f->sym->attr.allocatable | |
3764 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3765 | { |
942ba353 | 3766 | stmtblock_t block; |
3767 | gfc_expr *e; | |
3768 | ||
3769 | gfc_init_block (&block); | |
3770 | f->sym->attr.referenced = 1; | |
3771 | e = gfc_lval_expr_from_sym (f->sym); | |
3772 | gfc_add_finalizer_call (&block, e); | |
3773 | gfc_free_expr (e); | |
3774 | tmp = gfc_finish_block (&block); | |
3775 | } | |
5907c3ea | 3776 | |
942ba353 | 3777 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
3778 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
3779 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
3780 | f->sym->backend_decl, | |
3781 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3782 | |
942ba353 | 3783 | if (tmp != NULL_TREE && (f->sym->attr.optional |
3784 | || f->sym->ns->proc_name->attr.entry_master)) | |
3785 | { | |
3786 | present = gfc_conv_expr_present (f->sym); | |
3787 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3788 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 3789 | } |
942ba353 | 3790 | |
3791 | if (tmp != NULL_TREE) | |
3792 | gfc_add_expr_to_block (&init, tmp); | |
3793 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 3794 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3795 | } |
c56d57d6 | 3796 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3797 | && f->sym->ts.type == BT_CLASS | |
3798 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 3799 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 3800 | { |
942ba353 | 3801 | stmtblock_t block; |
3802 | gfc_expr *e; | |
3803 | ||
3804 | gfc_init_block (&block); | |
3805 | f->sym->attr.referenced = 1; | |
3806 | e = gfc_lval_expr_from_sym (f->sym); | |
3807 | gfc_add_finalizer_call (&block, e); | |
3808 | gfc_free_expr (e); | |
3809 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 3810 | |
3811 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3812 | { | |
3813 | present = gfc_conv_expr_present (f->sym); | |
3814 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3815 | present, tmp, | |
3816 | build_empty_stmt (input_location)); | |
3817 | } | |
3818 | ||
3819 | gfc_add_expr_to_block (&init, tmp); | |
3820 | } | |
f0d4969f | 3821 | |
c5faa799 | 3822 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3823 | } |
3824 | ||
87114d2e | 3825 | |
4ee9c684 | 3826 | /* Generate function entry and exit code, and add it to the function body. |
3827 | This includes: | |
f888a3fb | 3828 | Allocation and initialization of array variables. |
4ee9c684 | 3829 | Allocation of character string variables. |
c8f1568f | 3830 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3831 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3832 | Initialization of ASSOCIATE names. |
0a96a7cc | 3833 | Automatic deallocation. */ |
4ee9c684 | 3834 | |
89ac8ba1 | 3835 | void |
3836 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3837 | { |
3838 | locus loc; | |
3839 | gfc_symbol *sym; | |
d4163395 | 3840 | gfc_formal_arglist *f; |
c5faa799 | 3841 | stmtblock_t tmpblock; |
25dd7350 | 3842 | bool seen_trans_deferred_array = false; |
617125a6 | 3843 | tree tmp = NULL; |
3844 | gfc_expr *e; | |
3845 | gfc_se se; | |
3846 | stmtblock_t init; | |
4ee9c684 | 3847 | |
3848 | /* Deal with implicit return variables. Explicit return variables will | |
3849 | already have been added. */ | |
3850 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3851 | { | |
3852 | if (!current_fake_result_decl) | |
3853 | { | |
c6871095 | 3854 | gfc_entry_list *el = NULL; |
3855 | if (proc_sym->attr.entry_master) | |
3856 | { | |
3857 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3858 | if (el->sym != el->sym->result) | |
3859 | break; | |
3860 | } | |
fa7b6574 | 3861 | /* TODO: move to the appropriate place in resolve.c. */ |
3862 | if (warn_return_type && el == NULL) | |
4166acc7 | 3863 | gfc_warning (OPT_Wreturn_type, |
3864 | "Return value of function %qs at %L not set", | |
fa7b6574 | 3865 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 3866 | } |
c6871095 | 3867 | else if (proc_sym->as) |
4ee9c684 | 3868 | { |
d4163395 | 3869 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3870 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3871 | |
3872 | /* An automatic character length, pointer array result. */ | |
3873 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3874 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3875 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3876 | } |
3877 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3878 | { | |
617125a6 | 3879 | if (proc_sym->ts.deferred) |
3880 | { | |
3881 | tmp = NULL; | |
da2c4122 | 3882 | gfc_save_backend_locus (&loc); |
3883 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3884 | gfc_start_block (&init); |
3885 | /* Zero the string length on entry. */ | |
3886 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3887 | build_int_cst (gfc_charlen_type_node, 0)); | |
3888 | /* Null the pointer. */ | |
3889 | e = gfc_lval_expr_from_sym (proc_sym); | |
3890 | gfc_init_se (&se, NULL); | |
3891 | se.want_pointer = 1; | |
3892 | gfc_conv_expr (&se, e); | |
3893 | gfc_free_expr (e); | |
3894 | tmp = se.expr; | |
3895 | gfc_add_modify (&init, tmp, | |
3896 | fold_convert (TREE_TYPE (se.expr), | |
3897 | null_pointer_node)); | |
da2c4122 | 3898 | gfc_restore_backend_locus (&loc); |
617125a6 | 3899 | |
3900 | /* Pass back the string length on exit. */ | |
3901 | tmp = proc_sym->ts.u.cl->passed_length; | |
3902 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3903 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3904 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3905 | gfc_charlen_type_node, tmp, | |
3906 | proc_sym->ts.u.cl->backend_decl); | |
3907 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3908 | } | |
3909 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 3910 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3911 | } |
3912 | else | |
829d7a08 | 3913 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 3914 | } |
3915 | ||
87114d2e | 3916 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
3917 | should be done here so that the offsets and lbounds of arrays | |
3918 | are available. */ | |
da2c4122 | 3919 | gfc_save_backend_locus (&loc); |
3920 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 3921 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 3922 | gfc_restore_backend_locus (&loc); |
87114d2e | 3923 | |
4ee9c684 | 3924 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
3925 | { | |
6b3ceb4e | 3926 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
3927 | && (sym->ts.u.derived->attr.alloc_comp | |
3928 | || gfc_is_finalizable (sym->ts.u.derived, | |
3929 | NULL)); | |
8f3f9eab | 3930 | if (sym->assoc) |
3c82e013 | 3931 | continue; |
3932 | ||
a56d63bc | 3933 | if (sym->attr.subref_array_pointer |
3934 | && GFC_DECL_SPAN (sym->backend_decl) | |
3935 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
3936 | { | |
3937 | gfc_init_block (&tmpblock); | |
3938 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
3939 | build_int_cst (gfc_array_index_type, 0)); | |
3940 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3941 | NULL_TREE); | |
3942 | } | |
3943 | ||
85ae3cab | 3944 | if (sym->ts.type == BT_CLASS |
eb106faf | 3945 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 3946 | && CLASS_DATA (sym)->attr.allocatable) |
3947 | { | |
3948 | tree vptr; | |
3949 | ||
3950 | if (UNLIMITED_POLY (sym)) | |
3951 | vptr = null_pointer_node; | |
3952 | else | |
3953 | { | |
3954 | gfc_symbol *vsym; | |
3955 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
3956 | vptr = gfc_get_symbol_decl (vsym); | |
3957 | vptr = gfc_build_addr_expr (NULL, vptr); | |
3958 | } | |
3959 | ||
3960 | if (CLASS_DATA (sym)->attr.dimension | |
3961 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 3962 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 3963 | { |
3964 | tmp = gfc_class_data_get (sym->backend_decl); | |
3965 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
3966 | } | |
3967 | else | |
3968 | tmp = null_pointer_node; | |
3969 | ||
3970 | DECL_INITIAL (sym->backend_decl) | |
3971 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
3972 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
3973 | } | |
3974 | else if (sym->attr.dimension || sym->attr.codimension) | |
4ee9c684 | 3975 | { |
f7a6fca4 | 3976 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ |
3977 | array_type tmp = sym->as->type; | |
3978 | if (tmp == AS_ASSUMED_SIZE && sym->as->cp_was_assumed) | |
3979 | tmp = AS_EXPLICIT; | |
3980 | switch (tmp) | |
4ee9c684 | 3981 | { |
3982 | case AS_EXPLICIT: | |
3983 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3984 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3985 | else if (sym->attr.pointer || sym->attr.allocatable) |
3986 | { | |
3987 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 3988 | { |
3989 | gfc_save_backend_locus (&loc); | |
3990 | gfc_set_backend_locus (&sym->declared_at); | |
3991 | gfc_trans_static_array_pointer (sym); | |
3992 | gfc_restore_backend_locus (&loc); | |
3993 | } | |
4ee9c684 | 3994 | else |
25dd7350 | 3995 | { |
3996 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3997 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3998 | } |
4ee9c684 | 3999 | } |
7c7db7f6 | 4000 | else if (sym->attr.codimension && TREE_STATIC (sym->backend_decl)) |
4001 | { | |
4002 | gfc_init_block (&tmpblock); | |
4003 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4004 | &tmpblock, sym); | |
4005 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4006 | NULL_TREE); | |
4007 | continue; | |
4008 | } | |
197423f5 | 4009 | else |
4ee9c684 | 4010 | { |
da2c4122 | 4011 | gfc_save_backend_locus (&loc); |
4012 | gfc_set_backend_locus (&sym->declared_at); | |
4013 | ||
6b3ceb4e | 4014 | if (alloc_comp_or_fini) |
25dd7350 | 4015 | { |
4016 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4017 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4018 | } |
f0d4969f | 4019 | else if (sym->ts.type == BT_DERIVED |
4020 | && sym->value | |
4021 | && !sym->attr.data | |
4022 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4023 | { |
4024 | gfc_start_block (&tmpblock); | |
4025 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4026 | gfc_add_init_cleanup (block, |
c5faa799 | 4027 | gfc_finish_block (&tmpblock), |
4028 | NULL_TREE); | |
4029 | } | |
25dd7350 | 4030 | |
c5faa799 | 4031 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4032 | sym, block); |
4671339c | 4033 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4034 | } |
4035 | break; | |
4036 | ||
4037 | case AS_ASSUMED_SIZE: | |
4038 | /* Must be a dummy parameter. */ | |
452695a8 | 4039 | gcc_assert (sym->attr.dummy || sym->as->cp_was_assumed); |
4ee9c684 | 4040 | |
4041 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4042 | if (sym->attr.dummy) |
89ac8ba1 | 4043 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4044 | break; |
4ee9c684 | 4045 | |
4046 | case AS_ASSUMED_SHAPE: | |
4047 | /* Must be a dummy parameter. */ | |
22d678e8 | 4048 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4049 | |
89ac8ba1 | 4050 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4051 | break; |
4052 | ||
f00f6dd6 | 4053 | case AS_ASSUMED_RANK: |
4ee9c684 | 4054 | case AS_DEFERRED: |
25dd7350 | 4055 | seen_trans_deferred_array = true; |
89ac8ba1 | 4056 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4057 | break; |
4058 | ||
4059 | default: | |
22d678e8 | 4060 | gcc_unreachable (); |
4ee9c684 | 4061 | } |
6b3ceb4e | 4062 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4063 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4064 | } |
fd23cc08 | 4065 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4066 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4067 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4068 | continue; |
617125a6 | 4069 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4070 | && (sym->attr.allocatable |
4071 | || (sym->ts.type == BT_CLASS | |
4072 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4073 | { |
eb106faf | 4074 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4075 | { |
d0d776fb | 4076 | tree descriptor = NULL_TREE; |
4077 | ||
908e9973 | 4078 | /* Nullify and automatic deallocation of allocatable |
4079 | scalars. */ | |
908e9973 | 4080 | e = gfc_lval_expr_from_sym (sym); |
4081 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 4082 | gfc_add_data_component (e); |
908e9973 | 4083 | |
4084 | gfc_init_se (&se, NULL); | |
fd23cc08 | 4085 | if (sym->ts.type != BT_CLASS |
4086 | || sym->ts.u.derived->attr.dimension | |
4087 | || sym->ts.u.derived->attr.codimension) | |
4088 | { | |
4089 | se.want_pointer = 1; | |
4090 | gfc_conv_expr (&se, e); | |
4091 | } | |
4092 | else if (sym->ts.type == BT_CLASS | |
4093 | && !CLASS_DATA (sym)->attr.dimension | |
4094 | && !CLASS_DATA (sym)->attr.codimension) | |
4095 | { | |
4096 | se.want_pointer = 1; | |
4097 | gfc_conv_expr (&se, e); | |
4098 | } | |
4099 | else | |
4100 | { | |
4101 | gfc_conv_expr (&se, e); | |
d0d776fb | 4102 | descriptor = se.expr; |
fd23cc08 | 4103 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
4104 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
4105 | } | |
908e9973 | 4106 | gfc_free_expr (e); |
4107 | ||
da2c4122 | 4108 | gfc_save_backend_locus (&loc); |
4109 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4110 | gfc_start_block (&init); |
617125a6 | 4111 | |
4112 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4113 | { | |
4114 | /* Nullify when entering the scope. */ | |
883d6776 | 4115 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
4116 | TREE_TYPE (se.expr), se.expr, | |
4117 | fold_convert (TREE_TYPE (se.expr), | |
4118 | null_pointer_node)); | |
4119 | if (sym->attr.optional) | |
4120 | { | |
4121 | tree present = gfc_conv_expr_present (sym); | |
4122 | tmp = build3_loc (input_location, COND_EXPR, | |
4123 | void_type_node, present, tmp, | |
4124 | build_empty_stmt (input_location)); | |
4125 | } | |
4126 | gfc_add_expr_to_block (&init, tmp); | |
617125a6 | 4127 | } |
4128 | ||
883d6776 | 4129 | if ((sym->attr.dummy || sym->attr.result) |
617125a6 | 4130 | && sym->ts.type == BT_CHARACTER |
4131 | && sym->ts.deferred) | |
4132 | { | |
4133 | /* Character length passed by reference. */ | |
4134 | tmp = sym->ts.u.cl->passed_length; | |
4135 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4136 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4137 | ||
4138 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4139 | /* Zero the string length when entering the scope. */ | |
4140 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
4141 | build_int_cst (gfc_charlen_type_node, 0)); | |
4142 | else | |
883d6776 | 4143 | { |
4144 | tree tmp2; | |
4145 | ||
4146 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4147 | gfc_charlen_type_node, | |
4148 | sym->ts.u.cl->backend_decl, tmp); | |
4149 | if (sym->attr.optional) | |
4150 | { | |
4151 | tree present = gfc_conv_expr_present (sym); | |
4152 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4153 | void_type_node, present, tmp2, | |
4154 | build_empty_stmt (input_location)); | |
4155 | } | |
4156 | gfc_add_expr_to_block (&init, tmp2); | |
4157 | } | |
617125a6 | 4158 | |
da2c4122 | 4159 | gfc_restore_backend_locus (&loc); |
4160 | ||
617125a6 | 4161 | /* Pass the final character length back. */ |
4162 | if (sym->attr.intent != INTENT_IN) | |
883d6776 | 4163 | { |
4164 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4165 | gfc_charlen_type_node, tmp, | |
4166 | sym->ts.u.cl->backend_decl); | |
4167 | if (sym->attr.optional) | |
4168 | { | |
4169 | tree present = gfc_conv_expr_present (sym); | |
4170 | tmp = build3_loc (input_location, COND_EXPR, | |
4171 | void_type_node, present, tmp, | |
4172 | build_empty_stmt (input_location)); | |
4173 | } | |
4174 | } | |
617125a6 | 4175 | else |
4176 | tmp = NULL_TREE; | |
4177 | } | |
da2c4122 | 4178 | else |
4179 | gfc_restore_backend_locus (&loc); | |
908e9973 | 4180 | |
4181 | /* Deallocate when leaving the scope. Nullifying is not | |
4182 | needed. */ | |
afb69dbf | 4183 | if (!sym->attr.result && !sym->attr.dummy |
4184 | && !sym->ns->proc_name->attr.is_main_program) | |
d0d776fb | 4185 | { |
4186 | if (sym->ts.type == BT_CLASS | |
4187 | && CLASS_DATA (sym)->attr.codimension) | |
4188 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4189 | NULL_TREE, NULL_TREE, | |
4190 | NULL_TREE, true, NULL, | |
4191 | true); | |
4192 | else | |
c23adf93 | 4193 | { |
4194 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
4195 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, | |
4196 | true, expr, sym->ts); | |
4197 | gfc_free_expr (expr); | |
4198 | } | |
d0d776fb | 4199 | } |
afc44c79 | 4200 | if (sym->ts.type == BT_CLASS) |
4201 | { | |
4202 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4203 | gfc_symbol *vtab; |
afc44c79 | 4204 | tree rhs; |
da2c4122 | 4205 | |
4206 | gfc_save_backend_locus (&loc); | |
4207 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4208 | e = gfc_lval_expr_from_sym (sym); |
4209 | gfc_add_vptr_component (e); | |
4210 | gfc_init_se (&se, NULL); | |
4211 | se.want_pointer = 1; | |
4212 | gfc_conv_expr (&se, e); | |
4213 | gfc_free_expr (e); | |
a90fe829 | 4214 | if (UNLIMITED_POLY (sym)) |
4215 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4216 | else | |
4217 | { | |
4218 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4219 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4220 | gfc_get_symbol_decl (vtab)); | |
4221 | } | |
afc44c79 | 4222 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4223 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4224 | } |
4225 | ||
89ac8ba1 | 4226 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4227 | } |
0a96a7cc | 4228 | } |
617125a6 | 4229 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4230 | { | |
4231 | tree tmp = NULL; | |
4232 | stmtblock_t init; | |
4233 | ||
4234 | /* If we get to here, all that should be left are pointers. */ | |
4235 | gcc_assert (sym->attr.pointer); | |
4236 | ||
4237 | if (sym->attr.dummy) | |
4238 | { | |
4239 | gfc_start_block (&init); | |
4240 | ||
4241 | /* Character length passed by reference. */ | |
4242 | tmp = sym->ts.u.cl->passed_length; | |
4243 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4244 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4245 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
4246 | /* Pass the final character length back. */ | |
4247 | if (sym->attr.intent != INTENT_IN) | |
4248 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4249 | gfc_charlen_type_node, tmp, | |
4250 | sym->ts.u.cl->backend_decl); | |
4251 | else | |
4252 | tmp = NULL_TREE; | |
4253 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4254 | } | |
4255 | } | |
3e715c81 | 4256 | else if (sym->ts.deferred) |
4257 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4258 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4259 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4260 | else if (sym->ts.type == BT_CHARACTER) |
4261 | { | |
4671339c | 4262 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4263 | gfc_set_backend_locus (&sym->declared_at); |
4264 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4265 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4266 | else |
89ac8ba1 | 4267 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4268 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4269 | } |
c8f1568f | 4270 | else if (sym->attr.assign) |
4271 | { | |
4671339c | 4272 | gfc_save_backend_locus (&loc); |
c8f1568f | 4273 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4274 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4275 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4276 | } |
f0d4969f | 4277 | else if (sym->ts.type == BT_DERIVED |
4278 | && sym->value | |
4279 | && !sym->attr.data | |
4280 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4281 | { |
4282 | gfc_start_block (&tmpblock); | |
4283 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4284 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4285 | NULL_TREE); |
4286 | } | |
a90fe829 | 4287 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 4288 | gcc_unreachable (); |
4ee9c684 | 4289 | } |
4290 | ||
c5faa799 | 4291 | gfc_init_block (&tmpblock); |
d4163395 | 4292 | |
6777213b | 4293 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4294 | { |
4295 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4296 | { | |
eeebe20b | 4297 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4298 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4299 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4300 | } |
1e853e89 | 4301 | } |
d4163395 | 4302 | |
4303 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4304 | && current_fake_result_decl != NULL) | |
4305 | { | |
eeebe20b | 4306 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4307 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4308 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4309 | } |
4310 | ||
89ac8ba1 | 4311 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4312 | } |
4313 | ||
2ef51f0e | 4314 | struct module_hasher : ggc_hasher<module_htab_entry *> |
df4d540f | 4315 | { |
2ef51f0e | 4316 | typedef const char *compare_type; |
df4d540f | 4317 | |
2ef51f0e | 4318 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4319 | static bool | |
4320 | equal (module_htab_entry *a, const char *b) | |
4321 | { | |
4322 | return !strcmp (a->name, b); | |
4323 | } | |
4324 | }; | |
4325 | ||
4326 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4327 | |
4328 | /* Hash and equality functions for module_htab's decls. */ | |
4329 | ||
2ef51f0e | 4330 | hashval_t |
4331 | module_decl_hasher::hash (tree t) | |
df4d540f | 4332 | { |
df4d540f | 4333 | const_tree n = DECL_NAME (t); |
4334 | if (n == NULL_TREE) | |
4335 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4336 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4337 | } |
4338 | ||
2ef51f0e | 4339 | bool |
4340 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4341 | { |
df4d540f | 4342 | const_tree n1 = DECL_NAME (t1); |
4343 | if (n1 == NULL_TREE) | |
4344 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4345 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4346 | } |
4347 | ||
4348 | struct module_htab_entry * | |
4349 | gfc_find_module (const char *name) | |
4350 | { | |
df4d540f | 4351 | if (! module_htab) |
2ef51f0e | 4352 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4353 | |
2ef51f0e | 4354 | module_htab_entry **slot |
4355 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4356 | if (*slot == NULL) |
4357 | { | |
25a27413 | 4358 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4359 | |
4360 | entry->name = gfc_get_string (name); | |
2ef51f0e | 4361 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4362 | *slot = entry; | |
df4d540f | 4363 | } |
2ef51f0e | 4364 | return *slot; |
df4d540f | 4365 | } |
4366 | ||
4367 | void | |
4368 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4369 | { | |
df4d540f | 4370 | const char *name; |
4371 | ||
4372 | if (DECL_NAME (decl)) | |
4373 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4374 | else | |
4375 | { | |
4376 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4377 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4378 | } | |
2ef51f0e | 4379 | tree *slot |
4380 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4381 | INSERT); | |
df4d540f | 4382 | if (*slot == NULL) |
2ef51f0e | 4383 | *slot = decl; |
df4d540f | 4384 | } |
4385 | ||
c40a5c1b | 4386 | |
4387 | /* Generate debugging symbols for namelists. This function must come after | |
4388 | generate_local_decl to ensure that the variables in the namelist are | |
4389 | already declared. */ | |
4390 | ||
4391 | static tree | |
4392 | generate_namelist_decl (gfc_symbol * sym) | |
4393 | { | |
4394 | gfc_namelist *nml; | |
4395 | tree decl; | |
4396 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4397 | ||
4398 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4399 | for (nml = sym->namelist; nml; nml = nml->next) | |
4400 | { | |
4401 | if (nml->sym->backend_decl == NULL_TREE) | |
4402 | { | |
4403 | nml->sym->attr.referenced = 1; | |
4404 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4405 | } | |
0a32260c | 4406 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4407 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4408 | } | |
4409 | ||
4410 | decl = make_node (NAMELIST_DECL); | |
4411 | TREE_TYPE (decl) = void_type_node; | |
4412 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4413 | DECL_NAME (decl) = get_identifier (sym->name); | |
4414 | return decl; | |
4415 | } | |
4416 | ||
4417 | ||
4ee9c684 | 4418 | /* Output an initialized decl for a module variable. */ |
4419 | ||
4420 | static void | |
4421 | gfc_create_module_variable (gfc_symbol * sym) | |
4422 | { | |
4423 | tree decl; | |
4ee9c684 | 4424 | |
d77f260f | 4425 | /* Module functions with alternate entries are dealt with later and |
4426 | would get caught by the next condition. */ | |
4427 | if (sym->attr.entry) | |
4428 | return; | |
4429 | ||
c5d33754 | 4430 | /* Make sure we convert the types of the derived types from iso_c_binding |
4431 | into (void *). */ | |
4432 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4433 | && sym->ts.type == BT_DERIVED) | |
4434 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4435 | ||
df4d540f | 4436 | if (sym->attr.flavor == FL_DERIVED |
4437 | && sym->backend_decl | |
4438 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4439 | { | |
4440 | decl = sym->backend_decl; | |
4441 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4442 | |
044bbd71 | 4443 | if (!sym->attr.use_assoc) |
9f1470cb | 4444 | { |
4445 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4446 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4447 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4448 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4449 | == sym->ns->proc_name->backend_decl); | |
4450 | } | |
df4d540f | 4451 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4452 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4453 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4454 | } | |
4455 | ||
cf269acc | 4456 | /* Only output variables, procedure pointers and array valued, |
4457 | or derived type, parameters. */ | |
4ee9c684 | 4458 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4459 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4460 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4461 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4462 | return; |
4463 | ||
df4d540f | 4464 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4465 | { | |
4466 | decl = sym->backend_decl; | |
16a40513 | 4467 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4468 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4469 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4470 | gfc_module_add_decl (cur_module, decl); | |
4471 | } | |
4472 | ||
d43a7f7f | 4473 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4474 | COMMONs and Cray pointees will already have been generated. */ |
4475 | if (sym->attr.use_assoc || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4476 | return; |
4477 | ||
2b685f8e | 4478 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4479 | if (sym->backend_decl |
df4d540f | 4480 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4481 | return; | |
2b685f8e | 4482 | |
23d075f4 | 4483 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4484 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4485 | sym->name); | |
4ee9c684 | 4486 | |
92983bfd | 4487 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4488 | && (sym->attr.access == ACCESS_UNKNOWN | |
4489 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4490 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4491 | && flag_module_private)))) |
92983bfd | 4492 | sym->attr.access = ACCESS_PRIVATE; |
4493 | ||
4494 | if (warn_unused_variable && !sym->attr.referenced | |
4495 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4496 | gfc_warning (OPT_Wunused_value, |
4497 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4498 | sym->name, &sym->declared_at); |
4499 | ||
4ee9c684 | 4500 | /* We always want module variables to be created. */ |
4501 | sym->attr.referenced = 1; | |
4502 | /* Create the decl. */ | |
4503 | decl = gfc_get_symbol_decl (sym); | |
4504 | ||
4ee9c684 | 4505 | /* Create the variable. */ |
4506 | pushdecl (decl); | |
df4d540f | 4507 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4508 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4509 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4510 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4511 | |
4512 | /* Also add length of strings. */ | |
4513 | if (sym->ts.type == BT_CHARACTER) | |
4514 | { | |
4515 | tree length; | |
4516 | ||
eeebe20b | 4517 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4518 | gcc_assert (length || sym->attr.proc_pointer); |
4519 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4520 | { |
4521 | pushdecl (length); | |
b2c4af5e | 4522 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4523 | } |
4524 | } | |
a961ca30 | 4525 | |
4526 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4527 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4528 | has_coarray_vars = true; | |
4ee9c684 | 4529 | } |
4530 | ||
51d9479b | 4531 | /* Emit debug information for USE statements. */ |
df4d540f | 4532 | |
4533 | static void | |
4534 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4535 | { | |
4536 | gfc_use_list *use_stmt; | |
4537 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4538 | { | |
4539 | struct module_htab_entry *entry | |
4540 | = gfc_find_module (use_stmt->module_name); | |
4541 | gfc_use_rename *rent; | |
4542 | ||
4543 | if (entry->namespace_decl == NULL) | |
4544 | { | |
4545 | entry->namespace_decl | |
e60a6f7b | 4546 | = build_decl (input_location, |
4547 | NAMESPACE_DECL, | |
df4d540f | 4548 | get_identifier (use_stmt->module_name), |
4549 | void_type_node); | |
4550 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4551 | } | |
51d9479b | 4552 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4553 | if (!use_stmt->only_flag) |
4554 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4555 | NULL_TREE, | |
4556 | ns->proc_name->backend_decl, | |
4557 | false); | |
4558 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4559 | { | |
4560 | tree decl, local_name; | |
df4d540f | 4561 | |
4562 | if (rent->op != INTRINSIC_NONE) | |
4563 | continue; | |
4564 | ||
2ef51f0e | 4565 | hashval_t hash = htab_hash_string (rent->use_name); |
4566 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
4567 | INSERT); | |
df4d540f | 4568 | if (*slot == NULL) |
4569 | { | |
4570 | gfc_symtree *st; | |
4571 | ||
4572 | st = gfc_find_symtree (ns->sym_root, | |
4573 | rent->local_name[0] | |
4574 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4575 | |
4576 | /* The following can happen if a derived type is renamed. */ | |
4577 | if (!st) | |
4578 | { | |
4579 | char *name; | |
4580 | name = xstrdup (rent->local_name[0] | |
4581 | ? rent->local_name : rent->use_name); | |
4582 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4583 | st = gfc_find_symtree (ns->sym_root, name); | |
4584 | free (name); | |
4585 | gcc_assert (st); | |
4586 | } | |
857c96ba | 4587 | |
4588 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4589 | local symbol (see PR41062). */ | |
4590 | if (!st->n.sym->attr.use_assoc) | |
4591 | continue; | |
4592 | ||
51d9479b | 4593 | if (st->n.sym->backend_decl |
4594 | && DECL_P (st->n.sym->backend_decl) | |
4595 | && st->n.sym->module | |
4596 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4597 | { |
51d9479b | 4598 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4599 | || (TREE_CODE (st->n.sym->backend_decl) | |
4600 | != VAR_DECL)); | |
df4d540f | 4601 | decl = copy_node (st->n.sym->backend_decl); |
4602 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4603 | DECL_EXTERNAL (decl) = 1; | |
4604 | DECL_IGNORED_P (decl) = 0; | |
4605 | DECL_INITIAL (decl) = NULL_TREE; | |
4606 | } | |
c40a5c1b | 4607 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
4608 | && st->n.sym->attr.use_only | |
4609 | && st->n.sym->module | |
4610 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
4611 | == 0) | |
4612 | { | |
4613 | decl = generate_namelist_decl (st->n.sym); | |
4614 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4615 | DECL_EXTERNAL (decl) = 1; | |
4616 | DECL_IGNORED_P (decl) = 0; | |
4617 | DECL_INITIAL (decl) = NULL_TREE; | |
4618 | } | |
df4d540f | 4619 | else |
4620 | { | |
4621 | *slot = error_mark_node; | |
2ef51f0e | 4622 | entry->decls->clear_slot (slot); |
df4d540f | 4623 | continue; |
4624 | } | |
4625 | *slot = decl; | |
4626 | } | |
4627 | decl = (tree) *slot; | |
4628 | if (rent->local_name[0]) | |
4629 | local_name = get_identifier (rent->local_name); | |
4630 | else | |
4631 | local_name = NULL_TREE; | |
51d9479b | 4632 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4633 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4634 | ns->proc_name->backend_decl, | |
4635 | !use_stmt->only_flag); | |
4636 | } | |
4637 | } | |
4ee9c684 | 4638 | } |
4639 | ||
51d9479b | 4640 | |
2eb674c9 | 4641 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4642 | will handle. */ | |
4643 | ||
4644 | static bool | |
4645 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4646 | bool pointer) | |
4647 | { | |
4648 | gfc_constructor *c; | |
4649 | gfc_component *cm; | |
4650 | ||
4651 | if (pointer) | |
4652 | return true; | |
4653 | else if (array) | |
4654 | { | |
4655 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4656 | return true; | |
4657 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4658 | return check_constant_initializer (expr, ts, false, false); | |
4659 | else if (expr->expr_type != EXPR_ARRAY) | |
4660 | return false; | |
126387b5 | 4661 | for (c = gfc_constructor_first (expr->value.constructor); |
4662 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4663 | { |
4664 | if (c->iterator) | |
4665 | return false; | |
4666 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4667 | { | |
4668 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4669 | return false; | |
4670 | } | |
4671 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4672 | return false; | |
4673 | } | |
4674 | return true; | |
4675 | } | |
4676 | else switch (ts->type) | |
4677 | { | |
4678 | case BT_DERIVED: | |
4679 | if (expr->expr_type != EXPR_STRUCTURE) | |
4680 | return false; | |
eeebe20b | 4681 | cm = expr->ts.u.derived->components; |
126387b5 | 4682 | for (c = gfc_constructor_first (expr->value.constructor); |
4683 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4684 | { |
4685 | if (!c->expr || cm->attr.allocatable) | |
4686 | continue; | |
4687 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4688 | cm->attr.dimension, | |
4689 | cm->attr.pointer)) | |
4690 | return false; | |
4691 | } | |
4692 | return true; | |
4693 | default: | |
4694 | return expr->expr_type == EXPR_CONSTANT; | |
4695 | } | |
4696 | } | |
4697 | ||
4698 | /* Emit debug info for parameters and unreferenced variables with | |
4699 | initializers. */ | |
4700 | ||
4701 | static void | |
4702 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4703 | { | |
4704 | tree decl; | |
4705 | ||
4706 | if (sym->attr.flavor != FL_PARAMETER | |
4707 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4708 | return; | |
4709 | ||
4710 | if (sym->backend_decl != NULL | |
4711 | || sym->value == NULL | |
4712 | || sym->attr.use_assoc | |
4713 | || sym->attr.dummy | |
4714 | || sym->attr.result | |
4715 | || sym->attr.function | |
4716 | || sym->attr.intrinsic | |
4717 | || sym->attr.pointer | |
4718 | || sym->attr.allocatable | |
4719 | || sym->attr.cray_pointee | |
4720 | || sym->attr.threadprivate | |
4721 | || sym->attr.is_bind_c | |
4722 | || sym->attr.subref_array_pointer | |
4723 | || sym->attr.assign) | |
4724 | return; | |
4725 | ||
4726 | if (sym->ts.type == BT_CHARACTER) | |
4727 | { | |
eeebe20b | 4728 | gfc_conv_const_charlen (sym->ts.u.cl); |
4729 | if (sym->ts.u.cl->backend_decl == NULL | |
4730 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4731 | return; |
4732 | } | |
eeebe20b | 4733 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4734 | return; |
4735 | ||
4736 | if (sym->as) | |
4737 | { | |
4738 | int n; | |
4739 | ||
4740 | if (sym->as->type != AS_EXPLICIT) | |
4741 | return; | |
4742 | for (n = 0; n < sym->as->rank; n++) | |
4743 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4744 | || sym->as->upper[n] == NULL | |
4745 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4746 | return; | |
4747 | } | |
4748 | ||
4749 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4750 | sym->attr.dimension, false)) | |
4751 | return; | |
4752 | ||
4fe73152 | 4753 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 4754 | return; |
4755 | ||
2eb674c9 | 4756 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4757 | decl = build_decl (input_location, |
4758 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4759 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4760 | if (sym->attr.flavor == FL_PARAMETER) | |
4761 | TREE_READONLY (decl) = 1; | |
4762 | gfc_set_decl_location (decl, &sym->declared_at); | |
4763 | if (sym->attr.dimension) | |
4764 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4765 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4766 | TREE_STATIC (decl) = 1; | |
4767 | TREE_USED (decl) = 1; | |
4768 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4769 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4770 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4771 | TREE_TYPE (decl), | |
4772 | sym->attr.dimension, | |
4773 | false, false); | |
72b4d83e | 4774 | debug_hooks->global_decl (decl); |
2eb674c9 | 4775 | } |
4776 | ||
a961ca30 | 4777 | |
4778 | static void | |
4779 | generate_coarray_sym_init (gfc_symbol *sym) | |
4780 | { | |
4781 | tree tmp, size, decl, token; | |
498b946e | 4782 | bool is_lock_type; |
4783 | int reg_type; | |
a961ca30 | 4784 | |
4785 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 4786 | || sym->attr.use_assoc || !sym->attr.referenced |
4787 | || sym->attr.select_type_temporary) | |
a961ca30 | 4788 | return; |
4789 | ||
4790 | decl = sym->backend_decl; | |
4791 | TREE_USED(decl) = 1; | |
4792 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4793 | ||
498b946e | 4794 | is_lock_type = sym->ts.type == BT_DERIVED |
4795 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
4796 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
4797 | ||
a961ca30 | 4798 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
4799 | to make sure the variable is not optimized away. */ | |
4800 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4801 | ||
498b946e | 4802 | /* For lock types, we pass the array size as only the library knows the |
4803 | size of the variable. */ | |
4804 | if (is_lock_type) | |
4805 | size = gfc_index_one_node; | |
4806 | else | |
4807 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 4808 | |
a90fe829 | 4809 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 4810 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
4811 | fold_convert (size_type_node, size), | |
4812 | build_int_cst (size_type_node, 1)); | |
4813 | ||
a961ca30 | 4814 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4815 | { | |
4816 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4817 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4818 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4819 | } |
4820 | ||
4821 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4822 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4823 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 4824 | if (is_lock_type) |
4825 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
4826 | else | |
4827 | reg_type = GFC_CAF_COARRAY_STATIC; | |
a961ca30 | 4828 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, |
498b946e | 4829 | build_int_cst (integer_type_node, reg_type), |
a961ca30 | 4830 | token, null_pointer_node, /* token, stat. */ |
4831 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4832 | build_int_cst (integer_type_node, 0)); | |
a961ca30 | 4833 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); |
4834 | ||
a961ca30 | 4835 | /* Handle "static" initializer. */ |
4836 | if (sym->value) | |
4837 | { | |
4838 | sym->attr.pointer = 1; | |
4839 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4840 | true, false); | |
4841 | sym->attr.pointer = 0; | |
4842 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4843 | } | |
4844 | } | |
4845 | ||
4846 | ||
4847 | /* Generate constructor function to initialize static, nonallocatable | |
4848 | coarrays. */ | |
4849 | ||
4850 | static void | |
4851 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4852 | { | |
4853 | tree fndecl, tmp, decl, save_fn_decl; | |
4854 | ||
4855 | save_fn_decl = current_function_decl; | |
4856 | push_function_context (); | |
4857 | ||
4858 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4859 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4860 | create_tmp_var_name ("_caf_init"), tmp); | |
4861 | ||
4862 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4863 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4864 | ||
4865 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4866 | DECL_ARTIFICIAL (decl) = 1; | |
4867 | DECL_IGNORED_P (decl) = 1; | |
4868 | DECL_CONTEXT (decl) = fndecl; | |
4869 | DECL_RESULT (fndecl) = decl; | |
4870 | ||
4871 | pushdecl (fndecl); | |
4872 | current_function_decl = fndecl; | |
4873 | announce_function (fndecl); | |
4874 | ||
4875 | rest_of_decl_compilation (fndecl, 0, 0); | |
4876 | make_decl_rtl (fndecl); | |
00cf115c | 4877 | allocate_struct_function (fndecl, false); |
a961ca30 | 4878 | |
cde2be84 | 4879 | pushlevel (); |
a961ca30 | 4880 | gfc_init_block (&caf_init_block); |
4881 | ||
4882 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
4883 | ||
4884 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
4885 | decl = getdecls (); | |
4886 | ||
cde2be84 | 4887 | poplevel (1, 1); |
a961ca30 | 4888 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
4889 | ||
4890 | DECL_SAVED_TREE (fndecl) | |
4891 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
4892 | DECL_INITIAL (fndecl)); | |
4893 | dump_function (TDI_original, fndecl); | |
4894 | ||
4895 | cfun->function_end_locus = input_location; | |
4896 | set_cfun (NULL); | |
4897 | ||
4898 | if (decl_function_context (fndecl)) | |
415d1b9a | 4899 | (void) cgraph_node::create (fndecl); |
a961ca30 | 4900 | else |
35ee1c66 | 4901 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 4902 | |
4903 | pop_function_context (); | |
4904 | current_function_decl = save_fn_decl; | |
4905 | } | |
4906 | ||
4907 | ||
c40a5c1b | 4908 | static void |
4909 | create_module_nml_decl (gfc_symbol *sym) | |
4910 | { | |
4911 | if (sym->attr.flavor == FL_NAMELIST) | |
4912 | { | |
4913 | tree decl = generate_namelist_decl (sym); | |
4914 | pushdecl (decl); | |
4915 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
4916 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4917 | rest_of_decl_compilation (decl, 1, 0); | |
4918 | gfc_module_add_decl (cur_module, decl); | |
4919 | } | |
4920 | } | |
4921 | ||
4922 | ||
51d9479b | 4923 | /* Generate all the required code for module variables. */ |
4924 | ||
4925 | void | |
4926 | gfc_generate_module_vars (gfc_namespace * ns) | |
4927 | { | |
4928 | module_namespace = ns; | |
4929 | cur_module = gfc_find_module (ns->proc_name->name); | |
4930 | ||
4931 | /* Check if the frontend left the namespace in a reasonable state. */ | |
4932 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
4933 | ||
4934 | /* Generate COMMON blocks. */ | |
4935 | gfc_trans_common (ns); | |
4936 | ||
a961ca30 | 4937 | has_coarray_vars = false; |
4938 | ||
51d9479b | 4939 | /* Create decls for all the module variables. */ |
4940 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 4941 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 4942 | |
4fe73152 | 4943 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 4944 | generate_coarray_init (ns); |
4945 | ||
51d9479b | 4946 | cur_module = NULL; |
4947 | ||
4948 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 4949 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 4950 | } |
4951 | ||
4952 | ||
4ee9c684 | 4953 | static void |
4954 | gfc_generate_contained_functions (gfc_namespace * parent) | |
4955 | { | |
4956 | gfc_namespace *ns; | |
4957 | ||
4958 | /* We create all the prototypes before generating any code. */ | |
4959 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4960 | { | |
4961 | /* Skip namespaces from used modules. */ | |
4962 | if (ns->parent != parent) | |
4963 | continue; | |
4964 | ||
d896f9b3 | 4965 | gfc_create_function_decl (ns, false); |
4ee9c684 | 4966 | } |
4967 | ||
4968 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4969 | { | |
4970 | /* Skip namespaces from used modules. */ | |
4971 | if (ns->parent != parent) | |
4972 | continue; | |
4973 | ||
4974 | gfc_generate_function_code (ns); | |
4975 | } | |
4976 | } | |
4977 | ||
4978 | ||
d95efb59 | 4979 | /* Drill down through expressions for the array specification bounds and |
4980 | character length calling generate_local_decl for all those variables | |
4981 | that have not already been declared. */ | |
4982 | ||
4983 | static void | |
4984 | generate_local_decl (gfc_symbol *); | |
4985 | ||
1acb400a | 4986 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 4987 | |
1acb400a | 4988 | static bool |
4989 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
4990 | int *f ATTRIBUTE_UNUSED) | |
4991 | { | |
4992 | if (e->expr_type != EXPR_VARIABLE | |
4993 | || sym == e->symtree->n.sym | |
d95efb59 | 4994 | || e->symtree->n.sym->mark |
4995 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 4996 | return false; |
d95efb59 | 4997 | |
1acb400a | 4998 | generate_local_decl (e->symtree->n.sym); |
4999 | return false; | |
5000 | } | |
d95efb59 | 5001 | |
1acb400a | 5002 | static void |
5003 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5004 | { | |
5005 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5006 | } |
5007 | ||
5008 | ||
f6d0e37a | 5009 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5010 | |
5011 | static void | |
5012 | generate_dependency_declarations (gfc_symbol *sym) | |
5013 | { | |
5014 | int i; | |
5015 | ||
5016 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5017 | && sym->ts.u.cl |
5018 | && sym->ts.u.cl->length | |
5019 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5020 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5021 | |
5022 | if (sym->as && sym->as->rank) | |
5023 | { | |
5024 | for (i = 0; i < sym->as->rank; i++) | |
5025 | { | |
5026 | generate_expr_decls (sym, sym->as->lower[i]); | |
5027 | generate_expr_decls (sym, sym->as->upper[i]); | |
5028 | } | |
5029 | } | |
5030 | } | |
5031 | ||
5032 | ||
4ee9c684 | 5033 | /* Generate decls for all local variables. We do this to ensure correct |
5034 | handling of expressions which only appear in the specification of | |
5035 | other functions. */ | |
5036 | ||
5037 | static void | |
5038 | generate_local_decl (gfc_symbol * sym) | |
5039 | { | |
5040 | if (sym->attr.flavor == FL_VARIABLE) | |
5041 | { | |
a961ca30 | 5042 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5043 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5044 | has_coarray_vars = true; | |
5045 | ||
d95efb59 | 5046 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5047 | generate_dependency_declarations (sym); |
d95efb59 | 5048 | |
4ee9c684 | 5049 | if (sym->attr.referenced) |
8714fc76 | 5050 | gfc_get_symbol_decl (sym); |
4acad347 | 5051 | |
5052 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5053 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5054 | { |
4acad347 | 5055 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5056 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5057 | { |
5058 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5059 | gfc_warning (OPT_Wunused_dummy_argument, |
5060 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5061 | "INTENT(OUT) but was not set", sym->name, |
5062 | &sym->declared_at); | |
48cb4748 | 5063 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5064 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5065 | gfc_warning (OPT_Wunused_dummy_argument, |
5066 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5067 | "declared INTENT(OUT) but was not set and " |
5068 | "does not have a default initializer", | |
5069 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5070 | if (sym->backend_decl != NULL_TREE) |
5071 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5072 | } |
8290d53f | 5073 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5074 | { |
4166acc7 | 5075 | gfc_warning (OPT_Wunused_dummy_argument, |
5076 | "Unused dummy argument %qs at %L", sym->name, | |
5077 | &sym->declared_at); | |
90a4a5a6 | 5078 | if (sym->backend_decl != NULL_TREE) |
5079 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5080 | } | |
7c0ca46e | 5081 | } |
4acad347 | 5082 | |
f888a3fb | 5083 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5084 | block or a namelist. */ |
36609028 | 5085 | else if (warn_unused_variable |
1dbfac29 | 5086 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5087 | { |
1dbfac29 | 5088 | if (sym->attr.use_only) |
5089 | { | |
4166acc7 | 5090 | gfc_warning (OPT_Wunused_variable, |
5091 | "Unused module variable %qs which has been " | |
1dbfac29 | 5092 | "explicitly imported at %L", sym->name, |
5093 | &sym->declared_at); | |
5094 | if (sym->backend_decl != NULL_TREE) | |
5095 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5096 | } | |
5097 | else if (!sym->attr.use_assoc) | |
5098 | { | |
4166acc7 | 5099 | gfc_warning (OPT_Wunused_variable, |
5100 | "Unused variable %qs declared at %L", | |
1dbfac29 | 5101 | sym->name, &sym->declared_at); |
5102 | if (sym->backend_decl != NULL_TREE) | |
5103 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5104 | } | |
90a4a5a6 | 5105 | } |
8714fc76 | 5106 | |
d4163395 | 5107 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5108 | references the length variable, so force gfc_get_symbol_decl | |
5109 | even when not referenced. If optimize > 0, it will be optimized | |
5110 | away anyway. But do this only after emitting -Wunused-parameter | |
5111 | warning if requested. */ | |
8714fc76 | 5112 | if (sym->attr.dummy && !sym->attr.referenced |
5113 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5114 | && sym->ts.u.cl->backend_decl != NULL |
5115 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 5116 | { |
5117 | sym->attr.referenced = 1; | |
5118 | gfc_get_symbol_decl (sym); | |
5119 | } | |
76776e6d | 5120 | |
d0163401 | 5121 | /* INTENT(out) dummy arguments and result variables with allocatable |
5122 | components are reset by default and need to be set referenced to | |
5123 | generate the code for nullification and automatic lengths. */ | |
5124 | if (!sym->attr.referenced | |
8714fc76 | 5125 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5126 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5127 | && !sym->attr.pointer |
d0163401 | 5128 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5129 | || | |
5130 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5131 | { |
5132 | sym->attr.referenced = 1; | |
5133 | gfc_get_symbol_decl (sym); | |
5134 | } | |
5135 | ||
e72f979a | 5136 | /* Check for dependencies in the array specification and string |
5137 | length, adding the necessary declarations to the function. We | |
5138 | mark the symbol now, as well as in traverse_ns, to prevent | |
5139 | getting stuck in a circular dependency. */ | |
5140 | sym->mark = 1; | |
4ee9c684 | 5141 | } |
5dd246c1 | 5142 | else if (sym->attr.flavor == FL_PARAMETER) |
5143 | { | |
6ecfe89d | 5144 | if (warn_unused_parameter |
f326eb81 | 5145 | && !sym->attr.referenced) |
5146 | { | |
5147 | if (!sym->attr.use_assoc) | |
4166acc7 | 5148 | gfc_warning (OPT_Wunused_parameter, |
5149 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5150 | &sym->declared_at); |
5151 | else if (sym->attr.use_only) | |
4166acc7 | 5152 | gfc_warning (OPT_Wunused_parameter, |
5153 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5154 | "imported at %L", sym->name, &sym->declared_at); |
5155 | } | |
5dd246c1 | 5156 | } |
fa7b6574 | 5157 | else if (sym->attr.flavor == FL_PROCEDURE) |
5158 | { | |
5159 | /* TODO: move to the appropriate place in resolve.c. */ | |
5160 | if (warn_return_type | |
5161 | && sym->attr.function | |
5162 | && sym->result | |
5163 | && sym != sym->result | |
5164 | && !sym->result->attr.referenced | |
5165 | && !sym->attr.use_assoc | |
5166 | && sym->attr.if_source != IFSRC_IFBODY) | |
5167 | { | |
4166acc7 | 5168 | gfc_warning (OPT_Wreturn_type, |
5169 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5170 | "%L not set", sym->result->name, sym->name, |
5171 | &sym->result->declared_at); | |
5172 | ||
5173 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5174 | sym->result->mark = 1; |
fa7b6574 | 5175 | } |
5176 | } | |
c5d33754 | 5177 | |
19ba2ad8 | 5178 | if (sym->attr.dummy == 1) |
5179 | { | |
5180 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5181 | procedures if they are passed by value. The tree type for them will | |
5182 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5183 | what C would do with characters passed by-value. The value attribute | |
5184 | implies the dummy is a scalar. */ | |
5185 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5186 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5187 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5188 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5189 | |
5190 | /* Unused procedure passed as dummy argument. */ | |
5191 | if (sym->attr.flavor == FL_PROCEDURE) | |
5192 | { | |
5193 | if (!sym->attr.referenced) | |
5194 | { | |
8290d53f | 5195 | if (warn_unused_dummy_argument) |
4166acc7 | 5196 | gfc_warning (OPT_Wunused_dummy_argument, |
5197 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5198 | &sym->declared_at); |
fc6338c7 | 5199 | } |
5200 | ||
5201 | /* Silence bogus "unused parameter" warnings from the | |
5202 | middle end. */ | |
5203 | if (sym->backend_decl != NULL_TREE) | |
5204 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5205 | } | |
19ba2ad8 | 5206 | } |
5207 | ||
c5d33754 | 5208 | /* Make sure we convert the types of the derived types from iso_c_binding |
5209 | into (void *). */ | |
5210 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5211 | && sym->ts.type == BT_DERIVED) | |
5212 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5213 | } |
5214 | ||
c40a5c1b | 5215 | |
5216 | static void | |
5217 | generate_local_nml_decl (gfc_symbol * sym) | |
5218 | { | |
5219 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5220 | { | |
5221 | tree decl = generate_namelist_decl (sym); | |
5222 | pushdecl (decl); | |
5223 | } | |
5224 | } | |
5225 | ||
5226 | ||
4ee9c684 | 5227 | static void |
5228 | generate_local_vars (gfc_namespace * ns) | |
5229 | { | |
5230 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5231 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5232 | } |
5233 | ||
5234 | ||
1b716045 | 5235 | /* Generate a switch statement to jump to the correct entry point. Also |
5236 | creates the label decls for the entry points. */ | |
4ee9c684 | 5237 | |
1b716045 | 5238 | static tree |
5239 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5240 | { |
1b716045 | 5241 | stmtblock_t block; |
5242 | tree label; | |
5243 | tree tmp; | |
5244 | tree val; | |
4ee9c684 | 5245 | |
1b716045 | 5246 | gfc_init_block (&block); |
5247 | for (; el; el = el->next) | |
5248 | { | |
5249 | /* Add the case label. */ | |
b797d6d3 | 5250 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5251 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5252 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5253 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5254 | |
1b716045 | 5255 | /* And jump to the actual entry point. */ |
5256 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5257 | tmp = build1_v (GOTO_EXPR, label); |
5258 | gfc_add_expr_to_block (&block, tmp); | |
5259 | ||
5260 | /* Save the label decl. */ | |
5261 | el->label = label; | |
5262 | } | |
5263 | tmp = gfc_finish_block (&block); | |
5264 | /* The first argument selects the entry point. */ | |
5265 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 5266 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
5267 | val, tmp, NULL_TREE); | |
1b716045 | 5268 | return tmp; |
4ee9c684 | 5269 | } |
5270 | ||
6374121b | 5271 | |
a4abf8a0 | 5272 | /* Add code to string lengths of actual arguments passed to a function against |
5273 | the expected lengths of the dummy arguments. */ | |
5274 | ||
5275 | static void | |
5276 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5277 | { | |
5278 | gfc_formal_arglist *formal; | |
5279 | ||
6777213b | 5280 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5281 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5282 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5283 | { |
5284 | enum tree_code comparison; | |
5285 | tree cond; | |
5286 | tree argname; | |
5287 | gfc_symbol *fsym; | |
5288 | gfc_charlen *cl; | |
5289 | const char *message; | |
5290 | ||
5291 | fsym = formal->sym; | |
eeebe20b | 5292 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5293 | |
5294 | gcc_assert (cl); | |
5295 | gcc_assert (cl->passed_length != NULL_TREE); | |
5296 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5297 | ||
5298 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5299 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5300 | that the actual string length is *at least* the expected one. |
5301 | Sequence association allows for a mismatch of the string length | |
5302 | if the actual argument is (part of) an array, but only if the | |
5303 | dummy argument is an array. (See "Sequence association" in | |
5304 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5305 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5306 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5307 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5308 | { |
5309 | comparison = NE_EXPR; | |
5310 | message = _("Actual string length does not match the declared one" | |
5311 | " for dummy argument '%s' (%ld/%ld)"); | |
5312 | } | |
be4be771 | 5313 | else if (fsym->as && fsym->as->rank != 0) |
5314 | continue; | |
a4abf8a0 | 5315 | else |
5316 | { | |
5317 | comparison = LT_EXPR; | |
5318 | message = _("Actual string length is shorter than the declared one" | |
5319 | " for dummy argument '%s' (%ld/%ld)"); | |
5320 | } | |
5321 | ||
5322 | /* Build the condition. For optional arguments, an actual length | |
5323 | of 0 is also acceptable if the associated string is NULL, which | |
5324 | means the argument was not passed. */ | |
fd779e1d | 5325 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
5326 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 5327 | if (fsym->attr.optional) |
5328 | { | |
5329 | tree not_absent; | |
5330 | tree not_0length; | |
5331 | tree absent_failed; | |
5332 | ||
fd779e1d | 5333 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
5334 | boolean_type_node, | |
5335 | cl->passed_length, | |
385f3f36 | 5336 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5337 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5338 | fsym->attr.referenced = 1; | |
5339 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5340 | |
fd779e1d | 5341 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
5342 | boolean_type_node, not_0length, | |
5343 | not_absent); | |
a4abf8a0 | 5344 | |
fd779e1d | 5345 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
5346 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 5347 | } |
5348 | ||
5349 | /* Build the runtime check. */ | |
5350 | argname = gfc_build_cstring_const (fsym->name); | |
5351 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5352 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5353 | message, argname, | |
5354 | fold_convert (long_integer_type_node, | |
5355 | cl->passed_length), | |
5356 | fold_convert (long_integer_type_node, | |
5357 | cl->backend_decl)); | |
5358 | } | |
5359 | } | |
5360 | ||
5361 | ||
7257a5d2 | 5362 | static void |
5363 | create_main_function (tree fndecl) | |
5364 | { | |
43702da6 | 5365 | tree old_context; |
7257a5d2 | 5366 | tree ftn_main; |
5367 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5368 | stmtblock_t body; | |
5369 | ||
43702da6 | 5370 | old_context = current_function_decl; |
5371 | ||
5372 | if (old_context) | |
5373 | { | |
5374 | push_function_context (); | |
5375 | saved_parent_function_decls = saved_function_decls; | |
5376 | saved_function_decls = NULL_TREE; | |
5377 | } | |
5378 | ||
7257a5d2 | 5379 | /* main() function must be declared with global scope. */ |
5380 | gcc_assert (current_function_decl == NULL_TREE); | |
5381 | ||
5382 | /* Declare the function. */ | |
5383 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5384 | build_pointer_type (pchar_type_node), | |
5385 | NULL_TREE); | |
0509d0ee | 5386 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5387 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5388 | main_identifier_node, tmp); | |
7257a5d2 | 5389 | DECL_EXTERNAL (ftn_main) = 0; |
5390 | TREE_PUBLIC (ftn_main) = 1; | |
5391 | TREE_STATIC (ftn_main) = 1; | |
5392 | DECL_ATTRIBUTES (ftn_main) | |
5393 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5394 | ||
5395 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5396 | result_decl = build_decl (input_location, |
5397 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5398 | DECL_ARTIFICIAL (result_decl) = 1; |
5399 | DECL_IGNORED_P (result_decl) = 1; | |
5400 | DECL_CONTEXT (result_decl) = ftn_main; | |
5401 | DECL_RESULT (ftn_main) = result_decl; | |
5402 | ||
5403 | pushdecl (ftn_main); | |
5404 | ||
5405 | /* Get the arguments. */ | |
5406 | ||
5407 | arglist = NULL_TREE; | |
5408 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5409 | ||
5410 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5411 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5412 | DECL_CONTEXT (argc) = ftn_main; |
5413 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5414 | TREE_READONLY (argc) = 1; | |
5415 | gfc_finish_decl (argc); | |
5416 | arglist = chainon (arglist, argc); | |
5417 | ||
5418 | typelist = TREE_CHAIN (typelist); | |
5419 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5420 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5421 | DECL_CONTEXT (argv) = ftn_main; |
5422 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5423 | TREE_READONLY (argv) = 1; | |
5424 | DECL_BY_REFERENCE (argv) = 1; | |
5425 | gfc_finish_decl (argv); | |
5426 | arglist = chainon (arglist, argv); | |
5427 | ||
5428 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5429 | current_function_decl = ftn_main; | |
5430 | announce_function (ftn_main); | |
5431 | ||
5432 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5433 | make_decl_rtl (ftn_main); | |
00cf115c | 5434 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5435 | pushlevel (); |
7257a5d2 | 5436 | |
5437 | gfc_init_block (&body); | |
5438 | ||
293d72e0 | 5439 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5440 | |
d44f2f7c | 5441 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5442 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5443 | { |
5444 | tree pint_type, pppchar_type; | |
5445 | pint_type = build_pointer_type (integer_type_node); | |
5446 | pppchar_type | |
5447 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5448 | ||
d44f2f7c | 5449 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5450 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5451 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5452 | gfc_add_expr_to_block (&body, tmp); |
5453 | } | |
5454 | ||
7257a5d2 | 5455 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5456 | TREE_USED (argc) = 1; |
5457 | TREE_USED (argv) = 1; | |
389dd41b | 5458 | tmp = build_call_expr_loc (input_location, |
5459 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5460 | gfc_add_expr_to_block (&body, tmp); |
5461 | ||
5462 | /* Add a call to set_options to set up the runtime library Fortran | |
5463 | language standard parameters. */ | |
5464 | { | |
5465 | tree array_type, array, var; | |
f1f41a6c | 5466 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5467 | |
5468 | /* Passing a new option to the library requires four modifications: | |
5469 | + add it to the tree_cons list below | |
5470 | + change the array size in the call to build_array_type | |
5471 | + change the first argument to the library call | |
5472 | gfor_fndecl_set_options | |
5473 | + modify the library (runtime/compile_options.c)! */ | |
5474 | ||
06f13dc1 | 5475 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5476 | build_int_cst (integer_type_node, | |
5477 | gfc_option.warn_std)); | |
5478 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5479 | build_int_cst (integer_type_node, | |
5480 | gfc_option.allow_std)); | |
5481 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5482 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5483 | /* TODO: This is the old -fdump-core option, which is unused but |
5484 | passed due to ABI compatibility; remove when bumping the | |
5485 | library ABI. */ | |
06f13dc1 | 5486 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5487 | build_int_cst (integer_type_node, | |
b2130263 | 5488 | 0)); |
06f13dc1 | 5489 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5490 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 5491 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5492 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 5493 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5494 | build_int_cst (integer_type_node, | |
5495 | (gfc_option.rtcheck | |
5496 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5497 | /* TODO: This is the -frange-check option, which no longer affects |
5498 | library behavior; when bumping the library ABI this slot can be | |
5499 | reused for something else. As it is the last element in the | |
293d72e0 | 5500 | array, we can instead leave it out altogether. */ |
553e7cef | 5501 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5502 | build_int_cst (integer_type_node, 0)); | |
06f13dc1 | 5503 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5504 | build_int_cst (integer_type_node, | |
553e7cef | 5505 | gfc_option.fpe_summary)); |
7257a5d2 | 5506 | |
5507 | array_type = build_array_type (integer_type_node, | |
553e7cef | 5508 | build_index_type (size_int (8))); |
06f13dc1 | 5509 | array = build_constructor (array_type, v); |
7257a5d2 | 5510 | TREE_CONSTANT (array) = 1; |
5511 | TREE_STATIC (array) = 1; | |
5512 | ||
5513 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 5514 | var = build_decl (input_location, VAR_DECL, |
5515 | create_tmp_var_name ("options"), | |
5516 | array_type); | |
5517 | DECL_ARTIFICIAL (var) = 1; | |
5518 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 5519 | TREE_CONSTANT (var) = 1; |
5520 | TREE_STATIC (var) = 1; | |
5521 | TREE_READONLY (var) = 1; | |
5522 | DECL_INITIAL (var) = array; | |
bf77f8ee | 5523 | pushdecl (var); |
7257a5d2 | 5524 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
5525 | ||
389dd41b | 5526 | tmp = build_call_expr_loc (input_location, |
5527 | gfor_fndecl_set_options, 2, | |
553e7cef | 5528 | build_int_cst (integer_type_node, 9), var); |
7257a5d2 | 5529 | gfc_add_expr_to_block (&body, tmp); |
5530 | } | |
5531 | ||
5532 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5533 | the library will raise a FPE when needed. */ | |
5534 | if (gfc_option.fpe != 0) | |
5535 | { | |
389dd41b | 5536 | tmp = build_call_expr_loc (input_location, |
5537 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5538 | build_int_cst (integer_type_node, |
5539 | gfc_option.fpe)); | |
5540 | gfc_add_expr_to_block (&body, tmp); | |
5541 | } | |
5542 | ||
5543 | /* If this is the main program and an -fconvert option was provided, | |
5544 | add a call to set_convert. */ | |
5545 | ||
4fe73152 | 5546 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 5547 | { |
389dd41b | 5548 | tmp = build_call_expr_loc (input_location, |
5549 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 5550 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 5551 | gfc_add_expr_to_block (&body, tmp); |
5552 | } | |
5553 | ||
5554 | /* If this is the main program and an -frecord-marker option was provided, | |
5555 | add a call to set_record_marker. */ | |
5556 | ||
eb106faf | 5557 | if (flag_record_marker != 0) |
7257a5d2 | 5558 | { |
389dd41b | 5559 | tmp = build_call_expr_loc (input_location, |
5560 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5561 | build_int_cst (integer_type_node, |
eb106faf | 5562 | flag_record_marker)); |
7257a5d2 | 5563 | gfc_add_expr_to_block (&body, tmp); |
5564 | } | |
5565 | ||
eb106faf | 5566 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 5567 | { |
389dd41b | 5568 | tmp = build_call_expr_loc (input_location, |
5569 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5570 | build_int_cst (integer_type_node, |
eb106faf | 5571 | flag_max_subrecord_length)); |
7257a5d2 | 5572 | gfc_add_expr_to_block (&body, tmp); |
5573 | } | |
5574 | ||
5575 | /* Call MAIN__(). */ | |
389dd41b | 5576 | tmp = build_call_expr_loc (input_location, |
5577 | fndecl, 0); | |
7257a5d2 | 5578 | gfc_add_expr_to_block (&body, tmp); |
5579 | ||
43702da6 | 5580 | /* Mark MAIN__ as used. */ |
5581 | TREE_USED (fndecl) = 1; | |
5582 | ||
70b5944a | 5583 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 5584 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 5585 | { |
70b5944a | 5586 | /* Per F2008, 8.5.1 END of the main program implies a |
a90fe829 | 5587 | SYNC MEMORY. */ |
b9a16870 | 5588 | tmp = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
70b5944a | 5589 | tmp = build_call_expr_loc (input_location, tmp, 0); |
5590 | gfc_add_expr_to_block (&body, tmp); | |
5591 | ||
5592 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); | |
5593 | gfc_add_expr_to_block (&body, tmp); | |
5594 | } | |
5595 | ||
7257a5d2 | 5596 | /* "return 0". */ |
fd779e1d | 5597 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5598 | DECL_RESULT (ftn_main), | |
5599 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5600 | tmp = build1_v (RETURN_EXPR, tmp); |
5601 | gfc_add_expr_to_block (&body, tmp); | |
5602 | ||
5603 | ||
5604 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5605 | decl = getdecls (); | |
5606 | ||
5607 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5608 | poplevel (1, 1); |
7257a5d2 | 5609 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5610 | ||
5611 | DECL_SAVED_TREE (ftn_main) | |
5612 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5613 | DECL_INITIAL (ftn_main)); | |
5614 | ||
5615 | /* Output the GENERIC tree. */ | |
5616 | dump_function (TDI_original, ftn_main); | |
5617 | ||
35ee1c66 | 5618 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 5619 | |
5620 | if (old_context) | |
5621 | { | |
5622 | pop_function_context (); | |
5623 | saved_function_decls = saved_parent_function_decls; | |
5624 | } | |
5625 | current_function_decl = old_context; | |
7257a5d2 | 5626 | } |
5627 | ||
5628 | ||
89ac8ba1 | 5629 | /* Get the result expression for a procedure. */ |
5630 | ||
5631 | static tree | |
5632 | get_proc_result (gfc_symbol* sym) | |
5633 | { | |
5634 | if (sym->attr.subroutine || sym == sym->result) | |
5635 | { | |
5636 | if (current_fake_result_decl != NULL) | |
5637 | return TREE_VALUE (current_fake_result_decl); | |
5638 | ||
5639 | return NULL_TREE; | |
5640 | } | |
5641 | ||
5642 | return sym->result->backend_decl; | |
5643 | } | |
5644 | ||
5645 | ||
5646 | /* Generate an appropriate return-statement for a procedure. */ | |
5647 | ||
5648 | tree | |
5649 | gfc_generate_return (void) | |
5650 | { | |
5651 | gfc_symbol* sym; | |
5652 | tree result; | |
5653 | tree fndecl; | |
5654 | ||
5655 | sym = current_procedure_symbol; | |
5656 | fndecl = sym->backend_decl; | |
5657 | ||
5658 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5659 | result = NULL_TREE; | |
5660 | else | |
5661 | { | |
5662 | result = get_proc_result (sym); | |
5663 | ||
5664 | /* Set the return value to the dummy result variable. The | |
5665 | types may be different for scalar default REAL functions | |
5666 | with -ff2c, therefore we have to convert. */ | |
5667 | if (result != NULL_TREE) | |
5668 | { | |
5669 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5670 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5671 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5672 | result); | |
89ac8ba1 | 5673 | } |
5674 | } | |
5675 | ||
5676 | return build1_v (RETURN_EXPR, result); | |
5677 | } | |
5678 | ||
5679 | ||
d566c3e0 | 5680 | static void |
5681 | is_from_ieee_module (gfc_symbol *sym) | |
5682 | { | |
5683 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
5684 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
5685 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
5686 | seen_ieee_symbol = 1; | |
5687 | } | |
5688 | ||
5689 | ||
5690 | static int | |
5691 | is_ieee_module_used (gfc_namespace *ns) | |
5692 | { | |
5693 | seen_ieee_symbol = 0; | |
5694 | gfc_traverse_ns (ns, is_from_ieee_module); | |
5695 | return seen_ieee_symbol; | |
5696 | } | |
5697 | ||
5698 | ||
4ee9c684 | 5699 | /* Generate code for a function. */ |
5700 | ||
5701 | void | |
5702 | gfc_generate_function_code (gfc_namespace * ns) | |
5703 | { | |
5704 | tree fndecl; | |
5705 | tree old_context; | |
5706 | tree decl; | |
5707 | tree tmp; | |
d566c3e0 | 5708 | tree fpstate = NULL_TREE; |
89ac8ba1 | 5709 | stmtblock_t init, cleanup; |
4ee9c684 | 5710 | stmtblock_t body; |
89ac8ba1 | 5711 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5712 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5713 | gfc_symbol *sym; |
89ac8ba1 | 5714 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 5715 | int rank, ieee; |
e50e62f5 | 5716 | bool is_recursive; |
4ee9c684 | 5717 | |
5718 | sym = ns->proc_name; | |
89ac8ba1 | 5719 | previous_procedure_symbol = current_procedure_symbol; |
5720 | current_procedure_symbol = sym; | |
1b716045 | 5721 | |
4ee9c684 | 5722 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5723 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5724 | sym->tlink = sym; |
5725 | ||
5726 | /* Create the declaration for functions with global scope. */ | |
5727 | if (!sym->backend_decl) | |
d896f9b3 | 5728 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5729 | |
5730 | fndecl = sym->backend_decl; | |
5731 | old_context = current_function_decl; | |
5732 | ||
5733 | if (old_context) | |
5734 | { | |
5735 | push_function_context (); | |
5736 | saved_parent_function_decls = saved_function_decls; | |
5737 | saved_function_decls = NULL_TREE; | |
5738 | } | |
5739 | ||
1b716045 | 5740 | trans_function_start (sym); |
4ee9c684 | 5741 | |
89ac8ba1 | 5742 | gfc_init_block (&init); |
4ee9c684 | 5743 | |
c6871095 | 5744 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
5745 | { | |
5746 | /* Copy length backend_decls to all entry point result | |
5747 | symbols. */ | |
5748 | gfc_entry_list *el; | |
5749 | tree backend_decl; | |
5750 | ||
eeebe20b | 5751 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
5752 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 5753 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 5754 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 5755 | } |
5756 | ||
4ee9c684 | 5757 | /* Translate COMMON blocks. */ |
5758 | gfc_trans_common (ns); | |
5759 | ||
c750cc52 | 5760 | /* Null the parent fake result declaration if this namespace is |
5761 | a module function or an external procedures. */ | |
5762 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5763 | || ns->parent == NULL) | |
5764 | parent_fake_result_decl = NULL_TREE; | |
5765 | ||
2b685f8e | 5766 | gfc_generate_contained_functions (ns); |
5767 | ||
9579733e | 5768 | nonlocal_dummy_decls = NULL; |
5769 | nonlocal_dummy_decl_pset = NULL; | |
5770 | ||
a961ca30 | 5771 | has_coarray_vars = false; |
4ee9c684 | 5772 | generate_local_vars (ns); |
5b11d932 | 5773 | |
4fe73152 | 5774 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5775 | generate_coarray_init (ns); |
5776 | ||
c750cc52 | 5777 | /* Keep the parent fake result declaration in module functions |
5778 | or external procedures. */ | |
5779 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5780 | || ns->parent == NULL) | |
5781 | current_fake_result_decl = parent_fake_result_decl; | |
5782 | else | |
5783 | current_fake_result_decl = NULL_TREE; | |
5784 | ||
89ac8ba1 | 5785 | is_recursive = sym->attr.recursive |
5786 | || (sym->attr.entry_master | |
5787 | && sym->ns->entries->sym->attr.recursive); | |
5788 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 5789 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 5790 | { |
5791 | char * msg; | |
5792 | ||
87fda26c | 5793 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
5794 | sym->name); | |
89ac8ba1 | 5795 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); |
5796 | TREE_STATIC (recurcheckvar) = 1; | |
5797 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
5798 | gfc_add_expr_to_block (&init, recurcheckvar); | |
5799 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
5800 | &sym->declared_at, msg); | |
5801 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 5802 | free (msg); |
89ac8ba1 | 5803 | } |
4ee9c684 | 5804 | |
d566c3e0 | 5805 | /* Check if an IEEE module is used in the procedure. If so, save |
5806 | the floating point state. */ | |
5807 | ieee = is_ieee_module_used (ns); | |
5808 | if (ieee) | |
d7333535 | 5809 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 5810 | |
4ee9c684 | 5811 | /* Now generate the code for the body of this function. */ |
5812 | gfc_init_block (&body); | |
5813 | ||
5814 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 5815 | && sym->attr.subroutine) |
4ee9c684 | 5816 | { |
5817 | tree alternate_return; | |
c750cc52 | 5818 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 5819 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 5820 | } |
5821 | ||
1b716045 | 5822 | if (ns->entries) |
5823 | { | |
5824 | /* Jump to the correct entry point. */ | |
5825 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
5826 | gfc_add_expr_to_block (&body, tmp); | |
5827 | } | |
5828 | ||
a4abf8a0 | 5829 | /* If bounds-checking is enabled, generate code to check passed in actual |
5830 | arguments against the expected dummy argument attributes (e.g. string | |
5831 | lengths). */ | |
c1630d65 | 5832 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 5833 | add_argument_checking (&body, sym); |
5834 | ||
ca4c3545 | 5835 | /* Generate !$ACC DECLARE directive. */ |
5836 | if (ns->oacc_declare_clauses) | |
5837 | { | |
5838 | tree tmp = gfc_trans_oacc_declare (&body, ns); | |
5839 | gfc_add_expr_to_block (&body, tmp); | |
5840 | } | |
5841 | ||
4ee9c684 | 5842 | tmp = gfc_trans_code (ns->code); |
5843 | gfc_add_expr_to_block (&body, tmp); | |
5844 | ||
4ee9c684 | 5845 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node) |
5846 | { | |
89ac8ba1 | 5847 | tree result = get_proc_result (sym); |
4ee9c684 | 5848 | |
42766cb3 | 5849 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 5850 | { |
deb7edfc | 5851 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
5852 | && sym->result == sym) | |
5853 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
5854 | null_pointer_node)); | |
42766cb3 | 5855 | else if (sym->ts.type == BT_CLASS |
5856 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 5857 | && CLASS_DATA (sym)->attr.dimension == 0 |
5858 | && sym->result == sym) | |
42766cb3 | 5859 | { |
5860 | tmp = CLASS_DATA (sym)->backend_decl; | |
5861 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
5862 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
5863 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
5864 | null_pointer_node)); | |
5865 | } | |
deb7edfc | 5866 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 5867 | && sym->ts.u.derived->attr.alloc_comp |
5868 | && !sym->attr.allocatable) | |
53169279 | 5869 | { |
5870 | rank = sym->as ? sym->as->rank : 0; | |
89ac8ba1 | 5871 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, result, rank); |
5872 | gfc_add_expr_to_block (&init, tmp); | |
53169279 | 5873 | } |
5176859a | 5874 | } |
e50e62f5 | 5875 | |
fa7b6574 | 5876 | if (result == NULL_TREE) |
5877 | { | |
5878 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 5879 | if (warn_return_type && sym == sym->result) |
4166acc7 | 5880 | gfc_warning (OPT_Wreturn_type, |
5881 | "Return value of function %qs at %L not set", | |
fa7b6574 | 5882 | sym->name, &sym->declared_at); |
90a4a5a6 | 5883 | if (warn_return_type) |
5884 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 5885 | } |
4ee9c684 | 5886 | else |
89ac8ba1 | 5887 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 5888 | } |
89ac8ba1 | 5889 | |
5890 | gfc_init_block (&cleanup); | |
5891 | ||
5892 | /* Reset recursion-check variable. */ | |
5893 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 5894 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 5895 | { |
89ac8ba1 | 5896 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
5897 | recurcheckvar = NULL; | |
e50e62f5 | 5898 | } |
2294b616 | 5899 | |
d566c3e0 | 5900 | /* If IEEE modules are loaded, restore the floating-point state. */ |
5901 | if (ieee) | |
d7333535 | 5902 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 5903 | |
89ac8ba1 | 5904 | /* Finish the function body and add init and cleanup code. */ |
5905 | tmp = gfc_finish_block (&body); | |
5906 | gfc_start_wrapped_block (&try_block, tmp); | |
5907 | /* Add code to create and cleanup arrays. */ | |
5908 | gfc_trans_deferred_vars (sym, &try_block); | |
5909 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
5910 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 5911 | |
5912 | /* Add all the decls we created during processing. */ | |
5913 | decl = saved_function_decls; | |
5914 | while (decl) | |
5915 | { | |
5916 | tree next; | |
5917 | ||
1767a056 | 5918 | next = DECL_CHAIN (decl); |
5919 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 5920 | pushdecl (decl); |
4ee9c684 | 5921 | decl = next; |
5922 | } | |
5923 | saved_function_decls = NULL_TREE; | |
5924 | ||
89ac8ba1 | 5925 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 5926 | decl = getdecls (); |
4ee9c684 | 5927 | |
5928 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5929 | poplevel (1, 1); |
4ee9c684 | 5930 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5931 | ||
e5004242 | 5932 | DECL_SAVED_TREE (fndecl) |
5933 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5934 | DECL_INITIAL (fndecl)); | |
5935 | ||
9579733e | 5936 | if (nonlocal_dummy_decls) |
5937 | { | |
5938 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
5939 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
431205b7 | 5940 | delete nonlocal_dummy_decl_pset; |
9579733e | 5941 | nonlocal_dummy_decls = NULL; |
5942 | nonlocal_dummy_decl_pset = NULL; | |
5943 | } | |
5944 | ||
4ee9c684 | 5945 | /* Output the GENERIC tree. */ |
5946 | dump_function (TDI_original, fndecl); | |
5947 | ||
5948 | /* Store the end of the function, so that we get good line number | |
5949 | info for the epilogue. */ | |
5950 | cfun->function_end_locus = input_location; | |
5951 | ||
5952 | /* We're leaving the context of this function, so zap cfun. | |
5953 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
5954 | tree_rest_of_compilation. */ | |
87d4aa85 | 5955 | set_cfun (NULL); |
4ee9c684 | 5956 | |
5957 | if (old_context) | |
5958 | { | |
5959 | pop_function_context (); | |
5960 | saved_function_decls = saved_parent_function_decls; | |
5961 | } | |
5962 | current_function_decl = old_context; | |
5963 | ||
1f7747bd | 5964 | if (decl_function_context (fndecl)) |
5965 | { | |
5966 | /* Register this function with cgraph just far enough to get it | |
5967 | added to our parent's nested function list. | |
5968 | If there are static coarrays in this function, the nested _caf_init | |
5969 | function has already called cgraph_create_node, which also created | |
5970 | the cgraph node for this function. */ | |
4fe73152 | 5971 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
415d1b9a | 5972 | (void) cgraph_node::create (fndecl); |
1f7747bd | 5973 | } |
4ee9c684 | 5974 | else |
35ee1c66 | 5975 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 5976 | |
5977 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5978 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 5979 | |
5980 | if (sym->attr.is_main_program) | |
5981 | create_main_function (fndecl); | |
89ac8ba1 | 5982 | |
5983 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 5984 | } |
5985 | ||
7257a5d2 | 5986 | |
4ee9c684 | 5987 | void |
5988 | gfc_generate_constructors (void) | |
5989 | { | |
22d678e8 | 5990 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 5991 | #if 0 |
5992 | tree fnname; | |
5993 | tree type; | |
5994 | tree fndecl; | |
5995 | tree decl; | |
5996 | tree tmp; | |
5997 | ||
5998 | if (gfc_static_ctors == NULL_TREE) | |
5999 | return; | |
6000 | ||
db85cc4f | 6001 | fnname = get_file_function_name ("I"); |
e1036019 | 6002 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6003 | |
e60a6f7b | 6004 | fndecl = build_decl (input_location, |
6005 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6006 | TREE_PUBLIC (fndecl) = 1; |
6007 | ||
e60a6f7b | 6008 | decl = build_decl (input_location, |
6009 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6010 | DECL_ARTIFICIAL (decl) = 1; |
6011 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6012 | DECL_CONTEXT (decl) = fndecl; |
6013 | DECL_RESULT (fndecl) = decl; | |
6014 | ||
6015 | pushdecl (fndecl); | |
6016 | ||
6017 | current_function_decl = fndecl; | |
6018 | ||
b2c4af5e | 6019 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6020 | |
b2c4af5e | 6021 | make_decl_rtl (fndecl); |
4ee9c684 | 6022 | |
00cf115c | 6023 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6024 | |
cde2be84 | 6025 | pushlevel (); |
4ee9c684 | 6026 | |
6027 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6028 | { | |
389dd41b | 6029 | tmp = build_call_expr_loc (input_location, |
6030 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6031 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6032 | } |
6033 | ||
e5004242 | 6034 | decl = getdecls (); |
cde2be84 | 6035 | poplevel (1, 1); |
4ee9c684 | 6036 | |
6037 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6038 | DECL_SAVED_TREE (fndecl) |
6039 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6040 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6041 | |
6042 | free_after_parsing (cfun); | |
6043 | free_after_compilation (cfun); | |
6044 | ||
6148a911 | 6045 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6046 | |
6047 | current_function_decl = NULL_TREE; | |
6048 | #endif | |
6049 | } | |
6050 | ||
9ec7c303 | 6051 | /* Translates a BLOCK DATA program unit. This means emitting the |
6052 | commons contained therein plus their initializations. We also emit | |
6053 | a globally visible symbol to make sure that each BLOCK DATA program | |
6054 | unit remains unique. */ | |
6055 | ||
6056 | void | |
6057 | gfc_generate_block_data (gfc_namespace * ns) | |
6058 | { | |
6059 | tree decl; | |
6060 | tree id; | |
6061 | ||
b31f705b | 6062 | /* Tell the backend the source location of the block data. */ |
6063 | if (ns->proc_name) | |
6064 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6065 | else | |
6066 | gfc_set_backend_locus (&gfc_current_locus); | |
6067 | ||
6068 | /* Process the DATA statements. */ | |
9ec7c303 | 6069 | gfc_trans_common (ns); |
6070 | ||
b31f705b | 6071 | /* Create a global symbol with the mane of the block data. This is to |
6072 | generate linker errors if the same name is used twice. It is never | |
6073 | really used. */ | |
9ec7c303 | 6074 | if (ns->proc_name) |
6075 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6076 | else | |
6077 | id = get_identifier ("__BLOCK_DATA__"); | |
6078 | ||
e60a6f7b | 6079 | decl = build_decl (input_location, |
6080 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6081 | TREE_PUBLIC (decl) = 1; |
6082 | TREE_STATIC (decl) = 1; | |
df4d540f | 6083 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6084 | |
6085 | pushdecl (decl); | |
6086 | rest_of_decl_compilation (decl, 1, 0); | |
6087 | } | |
6088 | ||
b549d2a5 | 6089 | |
6a7084d7 | 6090 | /* Process the local variables of a BLOCK construct. */ |
6091 | ||
6092 | void | |
3c82e013 | 6093 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6094 | { |
6095 | tree decl; | |
6096 | ||
6097 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 6098 | has_coarray_vars = false; |
6099 | ||
6a7084d7 | 6100 | generate_local_vars (ns); |
6101 | ||
4fe73152 | 6102 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6103 | generate_coarray_init (ns); |
6104 | ||
6a7084d7 | 6105 | decl = saved_local_decls; |
6106 | while (decl) | |
6107 | { | |
6108 | tree next; | |
6109 | ||
1767a056 | 6110 | next = DECL_CHAIN (decl); |
6111 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6112 | pushdecl (decl); |
6113 | decl = next; | |
6114 | } | |
6115 | saved_local_decls = NULL_TREE; | |
6116 | } | |
6117 | ||
6118 | ||
4ee9c684 | 6119 | #include "gt-fortran-trans-decl.h" |