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4ee9c684 | 1 | /* Backend function setup |
f1717362 | 2 | Copyright (C) 2002-2016 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
4cba6f60 | 26 | #include "target.h" |
27 | #include "function.h" | |
28 | #include "tree.h" | |
dc8078a3 | 29 | #include "gfortran.h" |
4cba6f60 | 30 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
31 | #include "trans.h" | |
32 | #include "stringpool.h" | |
33 | #include "cgraph.h" | |
b20a8bb4 | 34 | #include "fold-const.h" |
9ed99284 | 35 | #include "stor-layout.h" |
36 | #include "varasm.h" | |
37 | #include "attribs.h" | |
4ee9c684 | 38 | #include "tree-dump.h" |
7cbc820e | 39 | #include "toplev.h" /* For announce_function. */ |
df4d540f | 40 | #include "debug.h" |
126387b5 | 41 | #include "constructor.h" |
4ee9c684 | 42 | #include "trans-types.h" |
43 | #include "trans-array.h" | |
44 | #include "trans-const.h" | |
45 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
46 | #include "trans-stmt.h" | |
7c1a9598 | 47 | #include "gomp-constants.h" |
1ec957b0 | 48 | #include "gimplify.h" |
4ee9c684 | 49 | |
50 | #define MAX_LABEL_VALUE 99999 | |
51 | ||
52 | ||
53 | /* Holds the result of the function if no result variable specified. */ | |
54 | ||
55 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 56 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 57 | |
4ee9c684 | 58 | |
59 | /* Holds the variable DECLs for the current function. */ | |
60 | ||
d4163395 | 61 | static GTY(()) tree saved_function_decls; |
62 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 63 | |
431205b7 | 64 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
9579733e | 65 | static GTY(()) tree nonlocal_dummy_decls; |
4ee9c684 | 66 | |
6a7084d7 | 67 | /* Holds the variable DECLs that are locals. */ |
68 | ||
69 | static GTY(()) tree saved_local_decls; | |
70 | ||
4ee9c684 | 71 | /* The namespace of the module we're currently generating. Only used while |
72 | outputting decls for module variables. Do not rely on this being set. */ | |
73 | ||
74 | static gfc_namespace *module_namespace; | |
75 | ||
89ac8ba1 | 76 | /* The currently processed procedure symbol. */ |
77 | static gfc_symbol* current_procedure_symbol = NULL; | |
78 | ||
3adf245a | 79 | /* The currently processed module. */ |
80 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 81 | |
a961ca30 | 82 | /* With -fcoarray=lib: For generating the registering call |
83 | of static coarrays. */ | |
84 | static bool has_coarray_vars; | |
85 | static stmtblock_t caf_init_block; | |
86 | ||
87 | ||
4ee9c684 | 88 | /* List of static constructor functions. */ |
89 | ||
90 | tree gfc_static_ctors; | |
91 | ||
92 | ||
d566c3e0 | 93 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
94 | static int seen_ieee_symbol; | |
95 | ||
4ee9c684 | 96 | /* Function declarations for builtin library functions. */ |
97 | ||
4ee9c684 | 98 | tree gfor_fndecl_pause_numeric; |
99 | tree gfor_fndecl_pause_string; | |
100 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 101 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 102 | tree gfor_fndecl_stop_string; |
070cc790 | 103 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 104 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 105 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 106 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 107 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 108 | tree gfor_fndecl_os_error; |
50ad5fa2 | 109 | tree gfor_fndecl_generate_error; |
7257a5d2 | 110 | tree gfor_fndecl_set_args; |
8c84a5de | 111 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 112 | tree gfor_fndecl_set_options; |
15774a8b | 113 | tree gfor_fndecl_set_convert; |
f23886ab | 114 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 115 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 116 | tree gfor_fndecl_ctime; |
117 | tree gfor_fndecl_fdate; | |
dbc97b88 | 118 | tree gfor_fndecl_ttynam; |
4ee9c684 | 119 | tree gfor_fndecl_in_pack; |
120 | tree gfor_fndecl_in_unpack; | |
121 | tree gfor_fndecl_associated; | |
72ce5390 | 122 | tree gfor_fndecl_system_clock4; |
123 | tree gfor_fndecl_system_clock8; | |
d566c3e0 | 124 | tree gfor_fndecl_ieee_procedure_entry; |
125 | tree gfor_fndecl_ieee_procedure_exit; | |
4ee9c684 | 126 | |
127 | ||
70b5944a | 128 | /* Coarray run-time library function decls. */ |
129 | tree gfor_fndecl_caf_init; | |
130 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 131 | tree gfor_fndecl_caf_this_image; |
132 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 133 | tree gfor_fndecl_caf_register; |
d0d776fb | 134 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 135 | tree gfor_fndecl_caf_get; |
136 | tree gfor_fndecl_caf_send; | |
137 | tree gfor_fndecl_caf_sendget; | |
eee0cf09 | 138 | tree gfor_fndecl_caf_get_by_ref; |
139 | tree gfor_fndecl_caf_send_by_ref; | |
140 | tree gfor_fndecl_caf_sendget_by_ref; | |
70b5944a | 141 | tree gfor_fndecl_caf_sync_all; |
71cf3ae6 | 142 | tree gfor_fndecl_caf_sync_memory; |
70b5944a | 143 | tree gfor_fndecl_caf_sync_images; |
ba4d9b7e | 144 | tree gfor_fndecl_caf_stop_str; |
145 | tree gfor_fndecl_caf_stop_numeric; | |
70b5944a | 146 | tree gfor_fndecl_caf_error_stop; |
147 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 148 | tree gfor_fndecl_caf_atomic_def; |
149 | tree gfor_fndecl_caf_atomic_ref; | |
150 | tree gfor_fndecl_caf_atomic_cas; | |
151 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 152 | tree gfor_fndecl_caf_lock; |
153 | tree gfor_fndecl_caf_unlock; | |
bd47f0bc | 154 | tree gfor_fndecl_caf_event_post; |
155 | tree gfor_fndecl_caf_event_wait; | |
156 | tree gfor_fndecl_caf_event_query; | |
52306a18 | 157 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 158 | tree gfor_fndecl_co_max; |
159 | tree gfor_fndecl_co_min; | |
e39efcef | 160 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 161 | tree gfor_fndecl_co_sum; |
70b5944a | 162 | |
70b5944a | 163 | |
4ee9c684 | 164 | /* Math functions. Many other math functions are handled in |
165 | trans-intrinsic.c. */ | |
166 | ||
920e54ef | 167 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 168 | tree gfor_fndecl_math_ishftc4; |
169 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 170 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 171 | |
172 | ||
173 | /* String functions. */ | |
174 | ||
4ee9c684 | 175 | tree gfor_fndecl_compare_string; |
176 | tree gfor_fndecl_concat_string; | |
177 | tree gfor_fndecl_string_len_trim; | |
178 | tree gfor_fndecl_string_index; | |
179 | tree gfor_fndecl_string_scan; | |
180 | tree gfor_fndecl_string_verify; | |
181 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 182 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 183 | tree gfor_fndecl_adjustl; |
184 | tree gfor_fndecl_adjustr; | |
b44437b9 | 185 | tree gfor_fndecl_select_string; |
40b806de | 186 | tree gfor_fndecl_compare_string_char4; |
187 | tree gfor_fndecl_concat_string_char4; | |
188 | tree gfor_fndecl_string_len_trim_char4; | |
189 | tree gfor_fndecl_string_index_char4; | |
190 | tree gfor_fndecl_string_scan_char4; | |
191 | tree gfor_fndecl_string_verify_char4; | |
192 | tree gfor_fndecl_string_trim_char4; | |
193 | tree gfor_fndecl_string_minmax_char4; | |
194 | tree gfor_fndecl_adjustl_char4; | |
195 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 196 | tree gfor_fndecl_select_string_char4; |
197 | ||
198 | ||
199 | /* Conversion between character kinds. */ | |
200 | tree gfor_fndecl_convert_char1_to_char4; | |
201 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 202 | |
203 | ||
204 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 205 | tree gfor_fndecl_size0; |
206 | tree gfor_fndecl_size1; | |
9b057c29 | 207 | tree gfor_fndecl_iargc; |
4ee9c684 | 208 | |
59e2a584 | 209 | /* Intrinsic functions implemented in Fortran. */ |
210 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 211 | tree gfor_fndecl_si_kind; |
212 | tree gfor_fndecl_sr_kind; | |
213 | ||
4e8e57b0 | 214 | /* BLAS gemm functions. */ |
215 | tree gfor_fndecl_sgemm; | |
216 | tree gfor_fndecl_dgemm; | |
217 | tree gfor_fndecl_cgemm; | |
218 | tree gfor_fndecl_zgemm; | |
219 | ||
4ee9c684 | 220 | |
221 | static void | |
222 | gfc_add_decl_to_parent_function (tree decl) | |
223 | { | |
22d678e8 | 224 | gcc_assert (decl); |
4ee9c684 | 225 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
226 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 227 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 228 | saved_parent_function_decls = decl; |
229 | } | |
230 | ||
231 | void | |
232 | gfc_add_decl_to_function (tree decl) | |
233 | { | |
22d678e8 | 234 | gcc_assert (decl); |
4ee9c684 | 235 | TREE_USED (decl) = 1; |
236 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 237 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 238 | saved_function_decls = decl; |
239 | } | |
240 | ||
6a7084d7 | 241 | static void |
242 | add_decl_as_local (tree decl) | |
243 | { | |
244 | gcc_assert (decl); | |
245 | TREE_USED (decl) = 1; | |
246 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 247 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 248 | saved_local_decls = decl; |
249 | } | |
250 | ||
4ee9c684 | 251 | |
b797d6d3 | 252 | /* Build a backend label declaration. Set TREE_USED for named labels. |
253 | The context of the label is always the current_function_decl. All | |
254 | labels are marked artificial. */ | |
4ee9c684 | 255 | |
256 | tree | |
257 | gfc_build_label_decl (tree label_id) | |
258 | { | |
259 | /* 2^32 temporaries should be enough. */ | |
260 | static unsigned int tmp_num = 1; | |
261 | tree label_decl; | |
262 | char *label_name; | |
263 | ||
264 | if (label_id == NULL_TREE) | |
265 | { | |
266 | /* Build an internal label name. */ | |
267 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
268 | label_id = get_identifier (label_name); | |
269 | } | |
270 | else | |
271 | label_name = NULL; | |
272 | ||
273 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 274 | label_decl = build_decl (input_location, |
275 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 276 | DECL_CONTEXT (label_decl) = current_function_decl; |
277 | DECL_MODE (label_decl) = VOIDmode; | |
278 | ||
b797d6d3 | 279 | /* We always define the label as used, even if the original source |
280 | file never references the label. We don't want all kinds of | |
281 | spurious warnings for old-style Fortran code with too many | |
282 | labels. */ | |
283 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 284 | |
b797d6d3 | 285 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 286 | return label_decl; |
287 | } | |
288 | ||
289 | ||
b31f705b | 290 | /* Set the backend source location of a decl. */ |
291 | ||
292 | void | |
293 | gfc_set_decl_location (tree decl, locus * loc) | |
294 | { | |
b31f705b | 295 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 296 | } |
297 | ||
298 | ||
4ee9c684 | 299 | /* Return the backend label declaration for a given label structure, |
300 | or create it if it doesn't exist yet. */ | |
301 | ||
302 | tree | |
303 | gfc_get_label_decl (gfc_st_label * lp) | |
304 | { | |
4ee9c684 | 305 | if (lp->backend_decl) |
306 | return lp->backend_decl; | |
307 | else | |
308 | { | |
309 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
310 | tree label_decl; | |
311 | ||
312 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 313 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 314 | |
315 | /* Build a mangled name for the label. */ | |
316 | sprintf (label_name, "__label_%.6d", lp->value); | |
317 | ||
318 | /* Build the LABEL_DECL node. */ | |
319 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
320 | ||
321 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 322 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 323 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 324 | else |
325 | DECL_ARTIFICIAL (label_decl) = 1; | |
326 | ||
327 | /* Store the label in the label list and return the LABEL_DECL. */ | |
328 | lp->backend_decl = label_decl; | |
329 | return label_decl; | |
330 | } | |
331 | } | |
332 | ||
333 | ||
334 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
335 | ||
336 | static tree | |
337 | gfc_sym_identifier (gfc_symbol * sym) | |
338 | { | |
0509d0ee | 339 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
340 | return (get_identifier ("MAIN__")); | |
341 | else | |
342 | return (get_identifier (sym->name)); | |
4ee9c684 | 343 | } |
344 | ||
345 | ||
346 | /* Construct mangled name from symbol name. */ | |
347 | ||
348 | static tree | |
349 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
350 | { | |
351 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
352 | ||
c5d33754 | 353 | /* Prevent the mangling of identifiers that have an assigned |
354 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 355 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
356 | return get_identifier (sym->binding_label); | |
a90fe829 | 357 | |
4f0fae8e | 358 | if (sym->module == NULL) |
4ee9c684 | 359 | return gfc_sym_identifier (sym); |
360 | else | |
361 | { | |
f08a3f6f | 362 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 363 | return get_identifier (name); |
364 | } | |
365 | } | |
366 | ||
367 | ||
368 | /* Construct mangled function name from symbol name. */ | |
369 | ||
370 | static tree | |
371 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
372 | { | |
373 | int has_underscore; | |
374 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
375 | ||
c5d33754 | 376 | /* It may be possible to simply use the binding label if it's |
377 | provided, and remove the other checks. Then we could use it | |
378 | for other things if we wished. */ | |
379 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 380 | sym->binding_label) |
c5d33754 | 381 | /* use the binding label rather than the mangled name */ |
382 | return get_identifier (sym->binding_label); | |
383 | ||
4b8eb6ca | 384 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 385 | || (sym->module != NULL && (sym->attr.external |
386 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 387 | && !sym->attr.module_procedure) |
4ee9c684 | 388 | { |
a2f97da7 | 389 | /* Main program is mangled into MAIN__. */ |
390 | if (sym->attr.is_main_program) | |
391 | return get_identifier ("MAIN__"); | |
392 | ||
393 | /* Intrinsic procedures are never mangled. */ | |
394 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 395 | return get_identifier (sym->name); |
396 | ||
829d7a08 | 397 | if (flag_underscoring) |
4ee9c684 | 398 | { |
399 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 400 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 401 | snprintf (name, sizeof name, "%s__", sym->name); |
402 | else | |
403 | snprintf (name, sizeof name, "%s_", sym->name); | |
404 | return get_identifier (name); | |
405 | } | |
406 | else | |
407 | return get_identifier (sym->name); | |
408 | } | |
409 | else | |
410 | { | |
f08a3f6f | 411 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 412 | return get_identifier (name); |
413 | } | |
414 | } | |
415 | ||
416 | ||
1236e28b | 417 | void |
418 | gfc_set_decl_assembler_name (tree decl, tree name) | |
419 | { | |
420 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
421 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
422 | } | |
423 | ||
424 | ||
5ed82495 | 425 | /* Returns true if a variable of specified size should go on the stack. */ |
426 | ||
427 | int | |
428 | gfc_can_put_var_on_stack (tree size) | |
429 | { | |
430 | unsigned HOST_WIDE_INT low; | |
431 | ||
432 | if (!INTEGER_CST_P (size)) | |
433 | return 0; | |
434 | ||
eb106faf | 435 | if (flag_max_stack_var_size < 0) |
5ed82495 | 436 | return 1; |
437 | ||
e1d65c9f | 438 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 439 | return 0; |
440 | ||
f9ae6f95 | 441 | low = TREE_INT_CST_LOW (size); |
eb106faf | 442 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 443 | return 0; |
444 | ||
445 | /* TODO: Set a per-function stack size limit. */ | |
446 | ||
447 | return 1; | |
448 | } | |
449 | ||
450 | ||
b7bf3f81 | 451 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
452 | an expression involving its corresponding pointer. There are | |
453 | 2 cases; one for variable size arrays, and one for everything else, | |
454 | because variable-sized arrays require one fewer level of | |
455 | indirection. */ | |
456 | ||
457 | static void | |
458 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
459 | { | |
460 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
461 | tree value; | |
462 | ||
463 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 464 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 465 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
466 | ptr_decl); | |
b7bf3f81 | 467 | |
468 | /* Check to see if we're dealing with a variable-sized array. */ | |
469 | if (sym->attr.dimension | |
a90fe829 | 470 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
471 | { | |
942043f8 | 472 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 473 | them here. */ |
474 | value = convert (TREE_TYPE (decl), ptr_decl); | |
475 | } | |
476 | else | |
477 | { | |
478 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
479 | ptr_decl); | |
389dd41b | 480 | value = build_fold_indirect_ref_loc (input_location, |
481 | ptr_decl); | |
b7bf3f81 | 482 | } |
483 | ||
484 | SET_DECL_VALUE_EXPR (decl, value); | |
485 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 486 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 487 | } |
488 | ||
489 | ||
b9c7fce7 | 490 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 491 | |
492 | static void | |
b9c7fce7 | 493 | gfc_finish_decl (tree decl) |
4ee9c684 | 494 | { |
b9c7fce7 | 495 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
496 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 497 | |
fe732a9b | 498 | if (!VAR_P (decl)) |
b9c7fce7 | 499 | return; |
4ee9c684 | 500 | |
b9c7fce7 | 501 | if (DECL_SIZE (decl) == NULL_TREE |
502 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
503 | layout_decl (decl, 0); | |
504 | ||
505 | /* A few consistency checks. */ | |
506 | /* A static variable with an incomplete type is an error if it is | |
507 | initialized. Also if it is not file scope. Otherwise, let it | |
508 | through, but if it is not `extern' then it may cause an error | |
509 | message later. */ | |
510 | /* An automatic variable with an incomplete type is an error. */ | |
511 | ||
512 | /* We should know the storage size. */ | |
513 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 514 | || (TREE_STATIC (decl) |
b9c7fce7 | 515 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
516 | : DECL_EXTERNAL (decl))); | |
517 | ||
518 | /* The storage size should be constant. */ | |
519 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
520 | || !DECL_SIZE (decl) | |
521 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 522 | } |
523 | ||
524 | ||
cf5f881f | 525 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
526 | ||
527 | void | |
528 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
529 | { | |
530 | if (!attr->dimension && !attr->codimension) | |
531 | { | |
532 | /* Handle scalar allocatable variables. */ | |
533 | if (attr->allocatable) | |
534 | { | |
535 | gfc_allocate_lang_decl (decl); | |
536 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
537 | } | |
538 | /* Handle scalar pointer variables. */ | |
539 | if (attr->pointer) | |
540 | { | |
541 | gfc_allocate_lang_decl (decl); | |
542 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
543 | } | |
544 | } | |
545 | } | |
546 | ||
547 | ||
4ee9c684 | 548 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
549 | ||
550 | static void | |
551 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
552 | { | |
c1977dbe | 553 | tree new_type; |
b549d2a5 | 554 | |
b7bf3f81 | 555 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 556 | if (sym->attr.cray_pointee) |
b7bf3f81 | 557 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 558 | |
845a9546 | 559 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
560 | This is the equivalent of the TARGET variables. | |
561 | We also need to set this if the variable is passed by reference in a | |
562 | CALL statement. */ | |
4ee9c684 | 563 | if (sym->attr.target) |
564 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 565 | |
4ee9c684 | 566 | /* If it wasn't used we wouldn't be getting it. */ |
567 | TREE_USED (decl) = 1; | |
568 | ||
7415cfe4 | 569 | if (sym->attr.flavor == FL_PARAMETER |
570 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
571 | TREE_READONLY (decl) = 1; | |
572 | ||
4ee9c684 | 573 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
574 | because this would add them to the current scope rather than the | |
575 | function scope. */ | |
576 | if (current_function_decl != NULL_TREE) | |
577 | { | |
7af6a4af | 578 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 579 | || sym->result == sym) |
4ee9c684 | 580 | gfc_add_decl_to_function (decl); |
6a7084d7 | 581 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
582 | /* This is a BLOCK construct. */ | |
583 | add_decl_as_local (decl); | |
4ee9c684 | 584 | else |
585 | gfc_add_decl_to_parent_function (decl); | |
586 | } | |
587 | ||
b7bf3f81 | 588 | if (sym->attr.cray_pointee) |
589 | return; | |
590 | ||
c5cb468c | 591 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 592 | { |
593 | /* We need to put variables that are bind(c) into the common | |
594 | segment of the object file, because this is what C would do. | |
595 | gfortran would typically put them in either the BSS or | |
596 | initialized data segments, and only mark them as common if | |
597 | they were part of common blocks. However, if they are not put | |
ea657963 | 598 | into common space, then C cannot initialize global Fortran |
c5d33754 | 599 | variables that it interoperates with and the draft says that |
600 | either Fortran or C should be able to initialize it (but not | |
601 | both, of course.) (J3/04-007, section 15.3). */ | |
602 | TREE_PUBLIC(decl) = 1; | |
603 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 604 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
605 | { | |
606 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
607 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
608 | } | |
c5d33754 | 609 | } |
a90fe829 | 610 | |
4ee9c684 | 611 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 612 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 613 | { |
614 | DECL_EXTERNAL (decl) = 1; | |
615 | TREE_PUBLIC (decl) = 1; | |
616 | } | |
4f0fae8e | 617 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 618 | { |
6b20224d | 619 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 620 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 621 | |
c8ddfd5d | 622 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 623 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 624 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
625 | { | |
626 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
627 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
628 | } | |
4ee9c684 | 629 | } |
630 | ||
f0d4969f | 631 | /* Derived types are a bit peculiar because of the possibility of |
632 | a default initializer; this must be applied each time the variable | |
633 | comes into scope it therefore need not be static. These variables | |
634 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 635 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 636 | SAVE_EXPLICIT. */ |
637 | if (!sym->attr.use_assoc | |
638 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 639 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 640 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 641 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 642 | TREE_STATIC (decl) = 1; |
ef814c81 | 643 | |
9f732c4e | 644 | /* If derived-type variables with DTIO procedures are not made static |
645 | some bits of code referencing them get optimized away. | |
646 | TODO Understand why this is so and fix it. */ | |
647 | if (!sym->attr.use_assoc | |
648 | && ((sym->ts.type == BT_DERIVED | |
649 | && sym->ts.u.derived->attr.has_dtio_procs) | |
650 | || (sym->ts.type == BT_CLASS | |
651 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
652 | TREE_STATIC (decl) = 1; | |
653 | ||
ef814c81 | 654 | if (sym->attr.volatile_) |
655 | { | |
ef814c81 | 656 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 657 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 658 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
659 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 660 | } |
ef814c81 | 661 | |
4ee9c684 | 662 | /* Keep variables larger than max-stack-var-size off stack. */ |
8e652fcf | 663 | if (!sym->ns->proc_name->attr.recursive && !sym->attr.automatic |
4ee9c684 | 664 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
a3f2c0e1 | 665 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
666 | /* Put variable length auto array pointers always into stack. */ | |
667 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
668 | || sym->attr.dimension == 0 | |
669 | || sym->as->type != AS_EXPLICIT | |
670 | || sym->attr.pointer | |
671 | || sym->attr.allocatable) | |
672 | && !DECL_ARTIFICIAL (decl)) | |
14eab729 | 673 | { |
674 | TREE_STATIC (decl) = 1; | |
675 | ||
676 | /* Because the size of this variable isn't known until now, we may have | |
677 | greedily added an initializer to this variable (in build_init_assign) | |
678 | even though the max-stack-var-size indicates the variable should be | |
679 | static. Therefore we rip out the automatic initializer here and | |
680 | replace it with a static one. */ | |
681 | gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); | |
682 | gfc_code *prev = NULL; | |
683 | gfc_code *code = sym->ns->code; | |
684 | while (code && code->op == EXEC_INIT_ASSIGN) | |
685 | { | |
686 | /* Look for an initializer meant for this symbol. */ | |
687 | if (code->expr1->symtree == st) | |
688 | { | |
689 | if (prev) | |
690 | prev->next = code->next; | |
691 | else | |
692 | sym->ns->code = code->next; | |
693 | ||
694 | break; | |
695 | } | |
696 | ||
697 | prev = code; | |
698 | code = code->next; | |
699 | } | |
700 | if (code && code->op == EXEC_INIT_ASSIGN) | |
701 | { | |
702 | /* Keep the init expression for a static initializer. */ | |
703 | sym->value = code->expr2; | |
704 | /* Cleanup the defunct code object, without freeing the init expr. */ | |
705 | code->expr2 = NULL; | |
706 | gfc_free_statement (code); | |
707 | free (code); | |
708 | } | |
709 | } | |
764f1175 | 710 | |
711 | /* Handle threadprivate variables. */ | |
9dda1f80 | 712 | if (sym->attr.threadprivate |
764f1175 | 713 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 714 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 715 | |
716 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 717 | } |
718 | ||
719 | ||
720 | /* Allocate the lang-specific part of a decl. */ | |
721 | ||
722 | void | |
723 | gfc_allocate_lang_decl (tree decl) | |
724 | { | |
cf5f881f | 725 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
726 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 727 | } |
728 | ||
729 | /* Remember a symbol to generate initialization/cleanup code at function | |
730 | entry/exit. */ | |
731 | ||
732 | static void | |
733 | gfc_defer_symbol_init (gfc_symbol * sym) | |
734 | { | |
735 | gfc_symbol *p; | |
736 | gfc_symbol *last; | |
737 | gfc_symbol *head; | |
738 | ||
739 | /* Don't add a symbol twice. */ | |
740 | if (sym->tlink) | |
741 | return; | |
742 | ||
743 | last = head = sym->ns->proc_name; | |
744 | p = last->tlink; | |
745 | ||
746 | /* Make sure that setup code for dummy variables which are used in the | |
747 | setup of other variables is generated first. */ | |
748 | if (sym->attr.dummy) | |
749 | { | |
750 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
751 | This is a circular list, so don't go past the head. */ | |
752 | while (p != head | |
753 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
754 | { | |
755 | last = p; | |
756 | p = p->tlink; | |
757 | } | |
758 | } | |
759 | /* Insert in between last and p. */ | |
760 | last->tlink = sym; | |
761 | sym->tlink = p; | |
762 | } | |
763 | ||
764 | ||
9f5a9ac5 | 765 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
766 | backend_decl for a module symbol, if it all ready exists. If the | |
767 | module gsymbol does not exist, it is created. If the symbol does | |
768 | not exist, it is added to the gsymbol namespace. Returns true if | |
769 | an existing backend_decl is found. */ | |
770 | ||
771 | bool | |
772 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
773 | { | |
774 | gfc_gsymbol *gsym; | |
775 | gfc_symbol *s; | |
776 | gfc_symtree *st; | |
777 | ||
778 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
779 | ||
780 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
781 | { | |
782 | st = NULL; | |
783 | s = NULL; | |
784 | ||
d7cd448a | 785 | /* Check for a symbol with the same name. */ |
9f5a9ac5 | 786 | if (gsym) |
787 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
788 | ||
789 | if (!s) | |
790 | { | |
791 | if (!gsym) | |
792 | { | |
793 | gsym = gfc_get_gsymbol (sym->module); | |
794 | gsym->type = GSYM_MODULE; | |
795 | gsym->ns = gfc_get_namespace (NULL, 0); | |
796 | } | |
797 | ||
798 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
799 | st->n.sym = sym; | |
800 | sym->refs++; | |
801 | } | |
d7cd448a | 802 | else if (gfc_fl_struct (sym->attr.flavor)) |
9f5a9ac5 | 803 | { |
c2958b6b | 804 | if (s && s->attr.flavor == FL_PROCEDURE) |
805 | { | |
806 | gfc_interface *intr; | |
807 | gcc_assert (s->attr.generic); | |
808 | for (intr = s->generic; intr; intr = intr->next) | |
d7cd448a | 809 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c2958b6b | 810 | { |
811 | s = intr->sym; | |
812 | break; | |
813 | } | |
814 | } | |
815 | ||
d7cd448a | 816 | /* Normally we can assume that s is a derived-type symbol since it |
817 | shares a name with the derived-type sym. However if sym is a | |
818 | STRUCTURE, it may in fact share a name with any other basic type | |
819 | variable. If s is in fact of derived type then we can continue | |
820 | looking for a duplicate type declaration. */ | |
821 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
822 | { | |
823 | s = s->ts.u.derived; | |
824 | } | |
825 | ||
826 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
827 | { | |
828 | if (s->attr.flavor == FL_UNION) | |
829 | s->backend_decl = gfc_get_union_type (s); | |
830 | else | |
831 | s->backend_decl = gfc_get_derived_type (s); | |
832 | } | |
9f5a9ac5 | 833 | gfc_copy_dt_decls_ifequal (s, sym, true); |
834 | return true; | |
835 | } | |
836 | else if (s->backend_decl) | |
837 | { | |
85ec2f13 | 838 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 839 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
840 | true); | |
841 | else if (sym->ts.type == BT_CHARACTER) | |
842 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
843 | sym->backend_decl = s->backend_decl; | |
844 | return true; | |
845 | } | |
846 | } | |
847 | return false; | |
848 | } | |
849 | ||
850 | ||
4ee9c684 | 851 | /* Create an array index type variable with function scope. */ |
852 | ||
853 | static tree | |
854 | create_index_var (const char * pfx, int nest) | |
855 | { | |
856 | tree decl; | |
857 | ||
858 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
859 | if (nest) | |
860 | gfc_add_decl_to_parent_function (decl); | |
861 | else | |
862 | gfc_add_decl_to_function (decl); | |
863 | return decl; | |
864 | } | |
865 | ||
866 | ||
867 | /* Create variables to hold all the non-constant bits of info for a | |
868 | descriptorless array. Remember these in the lang-specific part of the | |
869 | type. */ | |
870 | ||
871 | static void | |
872 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
873 | { | |
874 | tree type; | |
875 | int dim; | |
876 | int nest; | |
7b82374f | 877 | gfc_namespace* procns; |
c6793847 | 878 | symbol_attribute *array_attr; |
879 | gfc_array_spec *as; | |
880 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 881 | |
882 | type = TREE_TYPE (decl); | |
c6793847 | 883 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
884 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 885 | |
886 | /* We just use the descriptor, if there is one. */ | |
887 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
888 | return; | |
889 | ||
22d678e8 | 890 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 891 | procns = gfc_find_proc_namespace (sym->ns); |
892 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 893 | && !sym->attr.contained; |
894 | ||
c6793847 | 895 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
896 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 897 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
898 | { | |
899 | tree token; | |
ac36faf0 | 900 | tree token_type = build_qualified_type (pvoid_type_node, |
901 | TYPE_QUAL_RESTRICT); | |
902 | ||
903 | if (sym->module && (sym->attr.use_assoc | |
904 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
905 | { | |
906 | tree token_name | |
907 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
908 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
909 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
910 | token_type); | |
3adf245a | 911 | if (sym->attr.use_assoc) |
912 | DECL_EXTERNAL (token) = 1; | |
913 | else | |
914 | TREE_STATIC (token) = 1; | |
915 | ||
c8ddfd5d | 916 | TREE_PUBLIC (token) = 1; |
917 | ||
918 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
919 | { | |
920 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
921 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
922 | } | |
ac36faf0 | 923 | } |
924 | else | |
3adf245a | 925 | { |
926 | token = gfc_create_var_np (token_type, "caf_token"); | |
927 | TREE_STATIC (token) = 1; | |
928 | } | |
a961ca30 | 929 | |
a961ca30 | 930 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
931 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 932 | DECL_NONALIASED (token) = 1; |
933 | ||
934 | if (sym->module && !sym->attr.use_assoc) | |
935 | { | |
936 | pushdecl (token); | |
937 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
938 | gfc_module_add_decl (cur_module, token); | |
939 | } | |
940 | else | |
941 | gfc_add_decl_to_function (token); | |
a961ca30 | 942 | } |
943 | ||
4ee9c684 | 944 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
945 | { | |
946 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 947 | { |
948 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
949 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
950 | } | |
9ca15c9b | 951 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 952 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 953 | && (as->type != AS_ASSUMED_SIZE |
954 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 955 | { |
956 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
957 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
958 | } | |
4ee9c684 | 959 | |
960 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 961 | { |
962 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
963 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
964 | } | |
4ee9c684 | 965 | } |
076094b7 | 966 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
967 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
968 | { | |
969 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
970 | { | |
971 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
972 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
973 | } | |
974 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
975 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
976 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
977 | { | |
978 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
979 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
980 | } | |
981 | } | |
4ee9c684 | 982 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
983 | { | |
984 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
985 | "offset"); | |
86254bbf | 986 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
987 | ||
4ee9c684 | 988 | if (nest) |
989 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
990 | else | |
991 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
992 | } | |
d4163395 | 993 | |
994 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 995 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 996 | { |
997 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
998 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
999 | } | |
d4163395 | 1000 | |
1001 | if (POINTER_TYPE_P (type)) | |
1002 | { | |
1003 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
1004 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
1005 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
1006 | type = TREE_TYPE (type); | |
1007 | } | |
1008 | ||
1009 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
1010 | { | |
1011 | tree size, range; | |
1012 | ||
fd779e1d | 1013 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1014 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 1015 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
1016 | size); | |
1017 | TYPE_DOMAIN (type) = range; | |
1018 | layout_type (type); | |
1019 | } | |
6cf159a6 | 1020 | |
6cf159a6 | 1021 | if (TYPE_NAME (type) != NULL_TREE |
c6793847 | 1022 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
fe732a9b | 1023 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
6cf159a6 | 1024 | { |
1025 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1026 | ||
c6793847 | 1027 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 1028 | { |
1029 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1030 | gtype = TREE_TYPE (gtype); | |
1031 | } | |
1032 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1033 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
1034 | TYPE_NAME (type) = NULL_TREE; | |
1035 | } | |
1036 | ||
1037 | if (TYPE_NAME (type) == NULL_TREE) | |
1038 | { | |
1039 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
1040 | ||
c6793847 | 1041 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 1042 | { |
7130ec9d | 1043 | tree lbound, ubound; |
1044 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
1045 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
1046 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 1047 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 1048 | /* Ensure the bound variables aren't optimized out at -O0. |
1049 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 1050 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1051 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1052 | end up in debug info. */ | |
fe732a9b | 1053 | if (lbound |
1054 | && VAR_P (lbound) | |
1055 | && DECL_ARTIFICIAL (lbound) | |
1056 | && DECL_IGNORED_P (lbound)) | |
7130ec9d | 1057 | { |
1058 | if (DECL_NAME (lbound) | |
1059 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1060 | "lbound") != 0) | |
84bfaaeb | 1061 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 1062 | DECL_IGNORED_P (lbound) = 0; |
1063 | } | |
fe732a9b | 1064 | if (ubound |
1065 | && VAR_P (ubound) | |
1066 | && DECL_ARTIFICIAL (ubound) | |
1067 | && DECL_IGNORED_P (ubound)) | |
7130ec9d | 1068 | { |
1069 | if (DECL_NAME (ubound) | |
1070 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1071 | "ubound") != 0) | |
84bfaaeb | 1072 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1073 | DECL_IGNORED_P (ubound) = 0; |
1074 | } | |
6cf159a6 | 1075 | } |
e60a6f7b | 1076 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1077 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1078 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1079 | } | |
4ee9c684 | 1080 | } |
1081 | ||
1082 | ||
1083 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1084 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1085 | initialization, and construct full type information. */ |
1086 | ||
1087 | static tree | |
1088 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1089 | { | |
1090 | tree decl; | |
1091 | tree type; | |
1092 | gfc_array_spec *as; | |
c6793847 | 1093 | symbol_attribute *array_attr; |
4ee9c684 | 1094 | char *name; |
3d8dea5a | 1095 | gfc_packed packed; |
4ee9c684 | 1096 | int n; |
1097 | bool known_size; | |
c6793847 | 1098 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1099 | ||
1100 | /* Use the array as and attr. */ | |
1101 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1102 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1103 | ||
1104 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1105 | For class arrays the information if sym is an allocatable or pointer | |
1106 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1107 | too many reasons to be of use here). */ | |
1108 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1109 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1110 | || array_attr->allocatable | |
1111 | || (as && as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1112 | return dummy; |
1113 | ||
c6793847 | 1114 | /* Add to list of variables if not a fake result variable. |
1115 | These symbols are set on the symbol only, not on the class component. */ | |
4ee9c684 | 1116 | if (sym->attr.result || sym->attr.dummy) |
1117 | gfc_defer_symbol_init (sym); | |
1118 | ||
c6793847 | 1119 | /* For a class array the array descriptor is in the _data component, while |
1120 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1121 | descriptor. */ | |
1122 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1123 | : TREE_TYPE (dummy)); | |
1124 | /* type now is the array descriptor w/o any indirection. */ | |
22d678e8 | 1125 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1126 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1127 | |
f888a3fb | 1128 | /* Do we know the element size? */ |
4ee9c684 | 1129 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1130 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1131 | |
c6793847 | 1132 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1133 | { |
1134 | /* For descriptorless arrays with known element size the actual | |
1135 | argument is sufficient. */ | |
4ee9c684 | 1136 | gfc_build_qualified_array (dummy, sym); |
1137 | return dummy; | |
1138 | } | |
1139 | ||
4ee9c684 | 1140 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1141 | { | |
cb8e3560 | 1142 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1143 | packed = PACKED_NO; |
3d235846 | 1144 | |
1145 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1146 | are not repacked. */ | |
829d7a08 | 1147 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1148 | { |
1149 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1150 | packed = PACKED_FULL; |
4ee9c684 | 1151 | } |
1152 | else | |
1153 | { | |
1154 | if (as->type == AS_EXPLICIT) | |
1155 | { | |
3d8dea5a | 1156 | packed = PACKED_FULL; |
4ee9c684 | 1157 | for (n = 0; n < as->rank; n++) |
1158 | { | |
1159 | if (!(as->upper[n] | |
1160 | && as->lower[n] | |
1161 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1162 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1163 | { |
1164 | packed = PACKED_PARTIAL; | |
1165 | break; | |
1166 | } | |
4ee9c684 | 1167 | } |
1168 | } | |
1169 | else | |
3d8dea5a | 1170 | packed = PACKED_PARTIAL; |
4ee9c684 | 1171 | } |
1172 | ||
c6793847 | 1173 | /* For classarrays the element type is required, but |
1174 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1175 | type = is_classarray ? gfc_get_element_type (type) | |
1176 | : gfc_typenode_for_spec (&sym->ts); | |
1177 | type = gfc_get_nodesc_array_type (type, as, packed, | |
e1b3b79b | 1178 | !sym->attr.target); |
4ee9c684 | 1179 | } |
1180 | else | |
1181 | { | |
1182 | /* We now have an expression for the element size, so create a fully | |
1183 | qualified type. Reset sym->backend decl or this will just return the | |
1184 | old type. */ | |
d95efb59 | 1185 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1186 | sym->backend_decl = NULL_TREE; |
1187 | type = gfc_sym_type (sym); | |
3d8dea5a | 1188 | packed = PACKED_FULL; |
4ee9c684 | 1189 | } |
1190 | ||
1191 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1192 | decl = build_decl (input_location, |
1193 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1194 | |
1195 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1196 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1197 | TREE_PUBLIC (decl) = 0; |
1198 | TREE_STATIC (decl) = 0; | |
1199 | DECL_EXTERNAL (decl) = 0; | |
1200 | ||
a1f1e248 | 1201 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1202 | if (sym->attr.optional) | |
1203 | TREE_NO_WARNING (decl) = 1; | |
1204 | ||
4ee9c684 | 1205 | /* We should never get deferred shape arrays here. We used to because of |
1206 | frontend bugs. */ | |
c6793847 | 1207 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1208 | |
3d8dea5a | 1209 | if (packed == PACKED_PARTIAL) |
1210 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1211 | else if (packed == PACKED_FULL) | |
1212 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1213 | |
1214 | gfc_build_qualified_array (decl, sym); | |
1215 | ||
1216 | if (DECL_LANG_SPECIFIC (dummy)) | |
1217 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1218 | else | |
1219 | gfc_allocate_lang_decl (decl); | |
1220 | ||
1221 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1222 | ||
1223 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1224 | || sym->attr.contained) | |
1225 | gfc_add_decl_to_function (decl); | |
1226 | else | |
1227 | gfc_add_decl_to_parent_function (decl); | |
1228 | ||
1229 | return decl; | |
1230 | } | |
1231 | ||
9579733e | 1232 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1233 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1234 | pointing to the artificial variable for debug info purposes. */ | |
1235 | ||
1236 | static void | |
1237 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1238 | { | |
1239 | tree decl, dummy; | |
1240 | ||
1241 | if (! nonlocal_dummy_decl_pset) | |
431205b7 | 1242 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
9579733e | 1243 | |
431205b7 | 1244 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
9579733e | 1245 | return; |
1246 | ||
1247 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1248 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1249 | TREE_TYPE (sym->backend_decl)); |
1250 | DECL_ARTIFICIAL (decl) = 0; | |
1251 | TREE_USED (decl) = 1; | |
1252 | TREE_PUBLIC (decl) = 0; | |
1253 | TREE_STATIC (decl) = 0; | |
1254 | DECL_EXTERNAL (decl) = 0; | |
1255 | if (DECL_BY_REFERENCE (dummy)) | |
1256 | DECL_BY_REFERENCE (decl) = 1; | |
1257 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1258 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1259 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1260 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1261 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1262 | nonlocal_dummy_decls = decl; |
1263 | } | |
4ee9c684 | 1264 | |
1265 | /* Return a constant or a variable to use as a string length. Does not | |
1266 | add the decl to the current scope. */ | |
1267 | ||
1268 | static tree | |
1269 | gfc_create_string_length (gfc_symbol * sym) | |
1270 | { | |
eeebe20b | 1271 | gcc_assert (sym->ts.u.cl); |
1272 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1273 | |
eeebe20b | 1274 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1275 | { |
a4abf8a0 | 1276 | tree length; |
774bbd60 | 1277 | const char *name; |
4ee9c684 | 1278 | |
873f242d | 1279 | /* The string length variable shall be in static memory if it is either |
1280 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1281 | relevant is "len=:" - otherwise, it is either a constant length or | |
1282 | it is an automatic variable. */ | |
be125be0 | 1283 | bool static_length = sym->attr.save |
1284 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1285 | || (flag_max_stack_var_size == 0 |
873f242d | 1286 | && sym->ts.deferred && !sym->attr.dummy |
1287 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1288 | |
1289 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1290 | variables as some systems do not support the "." in the assembler name. | |
1291 | For nonstatic variables, the "." does not appear in assembler. */ | |
1292 | if (static_length) | |
1293 | { | |
1294 | if (sym->module) | |
1295 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1296 | sym->name); | |
1297 | else | |
1298 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1299 | } | |
1300 | else if (sym->module) | |
774bbd60 | 1301 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1302 | else | |
1303 | name = gfc_get_string (".%s", sym->name); | |
1304 | ||
e60a6f7b | 1305 | length = build_decl (input_location, |
1306 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1307 | gfc_charlen_type_node); |
4ee9c684 | 1308 | DECL_ARTIFICIAL (length) = 1; |
1309 | TREE_USED (length) = 1; | |
d4163395 | 1310 | if (sym->ns->proc_name->tlink != NULL) |
1311 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1312 | |
eeebe20b | 1313 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1314 | |
be125be0 | 1315 | if (static_length) |
774bbd60 | 1316 | TREE_STATIC (length) = 1; |
1317 | ||
1318 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1319 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1320 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1321 | } |
1322 | ||
eeebe20b | 1323 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1324 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1325 | } |
1326 | ||
c8f1568f | 1327 | /* If a variable is assigned a label, we add another two auxiliary |
1328 | variables. */ | |
1329 | ||
1330 | static void | |
1331 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1332 | { | |
1333 | tree addr; | |
1334 | tree length; | |
1335 | tree decl; | |
1336 | ||
1337 | gcc_assert (sym->backend_decl); | |
1338 | ||
1339 | decl = sym->backend_decl; | |
1340 | gfc_allocate_lang_decl (decl); | |
1341 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1342 | length = build_decl (input_location, |
1343 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1344 | gfc_charlen_type_node); |
e60a6f7b | 1345 | addr = build_decl (input_location, |
1346 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1347 | pvoid_type_node); |
1348 | gfc_finish_var_decl (length, sym); | |
1349 | gfc_finish_var_decl (addr, sym); | |
1350 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1351 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1352 | target label's address. Otherwise, value is the length of a format string | |
1353 | and ASSIGN_ADDR is its address. */ | |
1354 | if (TREE_STATIC (length)) | |
35bf1214 | 1355 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1356 | else |
1357 | gfc_defer_symbol_init (sym); | |
1358 | ||
1359 | GFC_DECL_STRING_LEN (decl) = length; | |
1360 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1361 | } | |
4ee9c684 | 1362 | |
36b0a1b0 | 1363 | |
1364 | static tree | |
1365 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1366 | { | |
1367 | unsigned id; | |
1368 | tree attr; | |
1369 | ||
1370 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1371 | if (sym_attr.ext_attr & (1 << id)) | |
1372 | { | |
1373 | attr = build_tree_list ( | |
1374 | get_identifier (ext_attr_list[id].middle_end_name), | |
1375 | NULL_TREE); | |
1376 | list = chainon (list, attr); | |
1377 | } | |
1378 | ||
44b49e6b | 1379 | if (sym_attr.omp_declare_target_link) |
1380 | list = tree_cons (get_identifier ("omp declare target link"), | |
1381 | NULL_TREE, list); | |
1382 | else if (sym_attr.omp_declare_target) | |
691447ab | 1383 | list = tree_cons (get_identifier ("omp declare target"), |
1384 | NULL_TREE, list); | |
1385 | ||
7c1a9598 | 1386 | if (sym_attr.oacc_function) |
1387 | { | |
1388 | tree dims = NULL_TREE; | |
1389 | int ix; | |
1390 | int level = sym_attr.oacc_function - 1; | |
1391 | ||
1392 | for (ix = GOMP_DIM_MAX; ix--;) | |
1393 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1394 | integer_zero_node, dims); | |
1395 | ||
1396 | list = tree_cons (get_identifier ("oacc function"), | |
1397 | dims, list); | |
1398 | } | |
1399 | ||
36b0a1b0 | 1400 | return list; |
1401 | } | |
1402 | ||
1403 | ||
802532b9 | 1404 | static void build_function_decl (gfc_symbol * sym, bool global); |
1405 | ||
1406 | ||
4ee9c684 | 1407 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1408 | exist. */ | |
1409 | ||
1410 | tree | |
1411 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1412 | { | |
1413 | tree decl; | |
1414 | tree length = NULL_TREE; | |
36b0a1b0 | 1415 | tree attributes; |
4ee9c684 | 1416 | int byref; |
cd2c99b8 | 1417 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1418 | bool fun_or_res; |
4ee9c684 | 1419 | |
0b5dc8b5 | 1420 | gcc_assert (sym->attr.referenced |
9e45357a | 1421 | || sym->attr.flavor == FL_PROCEDURE |
1422 | || sym->attr.use_assoc | |
4b8eb6ca | 1423 | || sym->attr.used_in_submodule |
9e45357a | 1424 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1425 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1426 | && sym->backend_decl)); | |
4ee9c684 | 1427 | |
ff70e443 | 1428 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1429 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1430 | else | |
1431 | byref = 0; | |
1432 | ||
09c509ed | 1433 | /* Make sure that the vtab for the declared type is completed. */ |
1434 | if (sym->ts.type == BT_CLASS) | |
1435 | { | |
50b4b37b | 1436 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1437 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1438 | { |
1439 | gfc_find_derived_vtab (c->ts.u.derived); | |
1440 | gfc_get_derived_type (sym->ts.u.derived); | |
1441 | } | |
09c509ed | 1442 | } |
1443 | ||
617125a6 | 1444 | /* All deferred character length procedures need to retain the backend |
1445 | decl, which is a pointer to the character length in the caller's | |
1446 | namespace and to declare a local character length. */ | |
1447 | if (!byref && sym->attr.function | |
1448 | && sym->ts.type == BT_CHARACTER | |
1449 | && sym->ts.deferred | |
1450 | && sym->ts.u.cl->passed_length == NULL | |
1451 | && sym->ts.u.cl->backend_decl | |
1452 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1453 | { | |
1454 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1455 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1456 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
617125a6 | 1457 | } |
1458 | ||
8b9eb27e | 1459 | fun_or_res = byref && (sym->attr.result |
1460 | || (sym->attr.function && sym->ts.deferred)); | |
1461 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1462 | { |
1463 | /* Return via extra parameter. */ | |
1464 | if (sym->attr.result && byref | |
1465 | && !sym->backend_decl) | |
1466 | { | |
1467 | sym->backend_decl = | |
1468 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1469 | /* For entry master function skip over the __entry |
1470 | argument. */ | |
1471 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1472 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1473 | } |
1474 | ||
1475 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1476 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1477 | |
1478 | /* Create a character length variable. */ | |
1479 | if (sym->ts.type == BT_CHARACTER) | |
1480 | { | |
617125a6 | 1481 | /* For a deferred dummy, make a new string length variable. */ |
1482 | if (sym->ts.deferred | |
1483 | && | |
1484 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1485 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1486 | ||
d1b1479f | 1487 | if (sym->ts.deferred && byref) |
617125a6 | 1488 | { |
d1b1479f | 1489 | /* The string length of a deferred char array is stored in the |
1490 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1491 | marked as a result. Exempt this variable from generating a | |
1492 | temporary for it. */ | |
1493 | if (sym->attr.result) | |
1494 | { | |
1495 | /* We need to insert a indirect ref for param decls. */ | |
1496 | if (sym->ts.u.cl->backend_decl | |
1497 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1498 | { |
1499 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
a4731200 | 1500 | sym->ts.u.cl->backend_decl = |
d1b1479f | 1501 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
a4731200 | 1502 | } |
ddcfeaf1 | 1503 | } |
d1b1479f | 1504 | /* For all other parameters make sure, that they are copied so |
1505 | that the value and any modifications are local to the routine | |
1506 | by generating a temporary variable. */ | |
1507 | else if (sym->attr.function | |
1508 | && sym->ts.u.cl->passed_length == NULL | |
1509 | && sym->ts.u.cl->backend_decl) | |
1510 | { | |
1511 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1512 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1513 | sym->ts.u.cl->backend_decl | |
1514 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1515 | else | |
a4731200 | 1516 | sym->ts.u.cl->backend_decl = NULL_TREE; |
d1b1479f | 1517 | } |
617125a6 | 1518 | } |
1519 | ||
eeebe20b | 1520 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1521 | length = gfc_create_string_length (sym); |
1522 | else | |
eeebe20b | 1523 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 1524 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1525 | { |
d95efb59 | 1526 | /* Add the string length to the same context as the symbol. */ |
1527 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1528 | gfc_add_decl_to_function (length); | |
1529 | else | |
1530 | gfc_add_decl_to_parent_function (length); | |
1531 | ||
1532 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1533 | DECL_CONTEXT (length)); | |
1534 | ||
d4163395 | 1535 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1536 | } |
4ee9c684 | 1537 | } |
1538 | ||
1539 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1540 | if ((sym->attr.dimension || sym->attr.codimension) |
1541 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1542 | { |
d95efb59 | 1543 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1544 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1545 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1546 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1547 | sym->backend_decl = decl; | |
4ee9c684 | 1548 | } |
1549 | ||
c6793847 | 1550 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1551 | some caller is expecting an expression to apply the component refs to. | |
1552 | Therefore the descriptor is only created and stored in | |
1553 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1554 | responsible to extract it from there, when the descriptor is | |
1555 | desired. */ | |
1556 | if (IS_CLASS_ARRAY (sym) | |
1557 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1558 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1559 | { | |
1560 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1561 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1562 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1563 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1564 | sym->backend_decl = decl; | |
1565 | } | |
1566 | ||
4ee9c684 | 1567 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1568 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1569 | { | |
1570 | gfc_add_assign_aux_vars (sym); | |
1571 | } | |
9579733e | 1572 | |
c6793847 | 1573 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
9579733e | 1574 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1575 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1576 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1577 | gfc_nonlocal_dummy_array_decl (sym); | |
1578 | ||
fd23cc08 | 1579 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1580 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1581 | ||
fd23cc08 | 1582 | return sym->backend_decl; |
4ee9c684 | 1583 | } |
1584 | ||
1585 | if (sym->backend_decl) | |
1586 | return sym->backend_decl; | |
1587 | ||
a25debd0 | 1588 | /* Special case for array-valued named constants from intrinsic |
1589 | procedures; those are inlined. */ | |
d566c3e0 | 1590 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1591 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1592 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1593 | intrinsic_array_parameter = true; |
1594 | ||
044bbd71 | 1595 | /* If use associated compilation, use the module |
094bca96 | 1596 | declaration. */ |
044bbd71 | 1597 | if ((sym->attr.flavor == FL_VARIABLE |
1598 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1599 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1600 | && !intrinsic_array_parameter |
1601 | && sym->module | |
1602 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1603 | { |
1604 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1605 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1606 | return sym->backend_decl; | |
1607 | } | |
7ea64434 | 1608 | |
4ee9c684 | 1609 | if (sym->attr.flavor == FL_PROCEDURE) |
1610 | { | |
77d080ca | 1611 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1612 | procedure pointers and procptr initialization targets. */ |
77d080ca | 1613 | if (sym->attr.use_assoc || sym->attr.intrinsic |
1614 | || sym->attr.if_source != IFSRC_DECL) | |
802532b9 | 1615 | { |
1616 | decl = gfc_get_extern_function_decl (sym); | |
1617 | gfc_set_decl_location (decl, &sym->declared_at); | |
1618 | } | |
1619 | else | |
1620 | { | |
1621 | if (!sym->backend_decl) | |
1622 | build_function_decl (sym, false); | |
1623 | decl = sym->backend_decl; | |
1624 | } | |
4ee9c684 | 1625 | return decl; |
1626 | } | |
1627 | ||
1628 | if (sym->attr.intrinsic) | |
382ad5c3 | 1629 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1630 | |
1631 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1632 | type declaration. For associate names, the target character |
1633 | length is used. Set 'length' to a constant so that if the | |
1634 | string lenght is a variable, it is not finished a second time. */ | |
4ee9c684 | 1635 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1636 | { |
1637 | if (sym->attr.associate_var | |
1638 | && sym->ts.u.cl->backend_decl | |
fe732a9b | 1639 | && VAR_P (sym->ts.u.cl->backend_decl)) |
c3639856 | 1640 | length = gfc_index_zero_node; |
1641 | else | |
1642 | length = gfc_create_string_length (sym); | |
1643 | } | |
4ee9c684 | 1644 | |
1645 | /* Create the decl for the variable. */ | |
e60a6f7b | 1646 | decl = build_decl (sym->declared_at.lb->location, |
1647 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1648 | |
1236e28b | 1649 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1650 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1651 | decl_attributes (&decl, attributes, 0); | |
1652 | ||
f888a3fb | 1653 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1654 | This is done here rather than in gfc_finish_var_decl because it |
1655 | is different for string length variables. */ | |
4f0fae8e | 1656 | if (sym->module) |
df4d540f | 1657 | { |
1236e28b | 1658 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1659 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1660 | DECL_IGNORED_P (decl) = 1; |
1661 | } | |
4ee9c684 | 1662 | |
bc5663df | 1663 | if (sym->attr.select_type_temporary) |
1664 | { | |
1665 | DECL_ARTIFICIAL (decl) = 1; | |
1666 | DECL_IGNORED_P (decl) = 1; | |
1667 | } | |
1668 | ||
7a777e43 | 1669 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1670 | { |
1671 | /* Create variables to hold the non-constant bits of array info. */ | |
1672 | gfc_build_qualified_array (decl, sym); | |
1673 | ||
b3c3927c | 1674 | if (sym->attr.contiguous |
1675 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1676 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1677 | } | |
1678 | ||
0a96a7cc | 1679 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1680 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1681 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1682 | (CLASS_DATA (sym)->attr.dimension |
1683 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1684 | || (sym->ts.type == BT_DERIVED |
1685 | && (sym->ts.u.derived->attr.alloc_comp | |
1686 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1687 | && !sym->ns->proc_name->attr.is_main_program | |
1688 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1689 | /* This applies a derived type default initializer. */ |
1690 | || (sym->ts.type == BT_DERIVED | |
1691 | && sym->attr.save == SAVE_NONE | |
1692 | && !sym->attr.data | |
1693 | && !sym->attr.allocatable | |
1694 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1695 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1696 | gfc_defer_symbol_init (sym); |
2294b616 | 1697 | |
4d8caf18 | 1698 | /* Associate names can use the hidden string length variable |
1699 | of their associated target. */ | |
1700 | if (sym->ts.type == BT_CHARACTER | |
1701 | && TREE_CODE (length) != INTEGER_CST) | |
1702 | { | |
1703 | gfc_finish_var_decl (length, sym); | |
1704 | gcc_assert (!sym->value); | |
1705 | } | |
1706 | ||
4ee9c684 | 1707 | gfc_finish_var_decl (decl, sym); |
1708 | ||
bda1f152 | 1709 | if (sym->ts.type == BT_CHARACTER) |
4d8caf18 | 1710 | /* Character variables need special handling. */ |
1711 | gfc_allocate_lang_decl (decl); | |
1033248c | 1712 | else if (sym->attr.subref_array_pointer) |
4d8caf18 | 1713 | /* We need the span for these beasts. */ |
1714 | gfc_allocate_lang_decl (decl); | |
1033248c | 1715 | |
1716 | if (sym->attr.subref_array_pointer) | |
1717 | { | |
1718 | tree span; | |
1719 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1720 | span = build_decl (input_location, |
1721 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1722 | gfc_array_index_type); |
1723 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1724 | TREE_STATIC (span) = TREE_STATIC (decl); |
1725 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1726 | |
1727 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1728 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1729 | } |
1730 | ||
fd23cc08 | 1731 | if (sym->ts.type == BT_CLASS) |
1732 | GFC_DECL_CLASS(decl) = 1; | |
1733 | ||
4ee9c684 | 1734 | sym->backend_decl = decl; |
1735 | ||
c8f1568f | 1736 | if (sym->attr.assign) |
21ebda4d | 1737 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1738 | |
cd2c99b8 | 1739 | if (intrinsic_array_parameter) |
1740 | { | |
1741 | TREE_STATIC (decl) = 1; | |
1742 | DECL_EXTERNAL (decl) = 0; | |
1743 | } | |
1744 | ||
1745 | if (TREE_STATIC (decl) | |
1746 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1747 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
14eab729 | 1748 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
a961ca30 | 1749 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1750 | && (flag_coarray != GFC_FCOARRAY_LIB |
0d3bb1de | 1751 | || !sym->attr.codimension || sym->attr.allocatable)) |
a545a8f8 | 1752 | { |
1753 | /* Add static initializer. For procedures, it is only needed if | |
1754 | SAVE is specified otherwise they need to be reinitialized | |
1755 | every time the procedure is entered. The TREE_STATIC is | |
1756 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1757 | |
bda1f152 | 1758 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1759 | TREE_TYPE (decl), sym->attr.dimension |
1760 | || (sym->attr.codimension | |
1761 | && sym->attr.allocatable), | |
1762 | sym->attr.pointer || sym->attr.allocatable | |
1763 | || sym->ts.type == BT_CLASS, | |
1764 | sym->attr.proc_pointer); | |
bda1f152 | 1765 | } |
1766 | ||
9579733e | 1767 | if (!TREE_STATIC (decl) |
1768 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1769 | && !sym->attr.pointer | |
1770 | && !sym->attr.allocatable | |
bc5663df | 1771 | && !sym->attr.proc_pointer |
1772 | && !sym->attr.select_type_temporary) | |
9579733e | 1773 | DECL_BY_REFERENCE (decl) = 1; |
1774 | ||
cf5f881f | 1775 | if (sym->attr.associate_var) |
1776 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1777 | ||
ebad7c3e | 1778 | if (sym->attr.vtab |
1779 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1780 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1781 | |
4ee9c684 | 1782 | return decl; |
1783 | } | |
1784 | ||
1785 | ||
dbe60343 | 1786 | /* Substitute a temporary variable in place of the real one. */ |
1787 | ||
1788 | void | |
1789 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1790 | { | |
1791 | save->attr = sym->attr; | |
1792 | save->decl = sym->backend_decl; | |
1793 | ||
1794 | gfc_clear_attr (&sym->attr); | |
1795 | sym->attr.referenced = 1; | |
1796 | sym->attr.flavor = FL_VARIABLE; | |
1797 | ||
1798 | sym->backend_decl = decl; | |
1799 | } | |
1800 | ||
1801 | ||
1802 | /* Restore the original variable. */ | |
1803 | ||
1804 | void | |
1805 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1806 | { | |
1807 | sym->attr = save->attr; | |
1808 | sym->backend_decl = save->decl; | |
1809 | } | |
1810 | ||
1811 | ||
cad0ddcf | 1812 | /* Declare a procedure pointer. */ |
1813 | ||
1814 | static tree | |
1815 | get_proc_pointer_decl (gfc_symbol *sym) | |
1816 | { | |
1817 | tree decl; | |
36b0a1b0 | 1818 | tree attributes; |
cad0ddcf | 1819 | |
1820 | decl = sym->backend_decl; | |
1821 | if (decl) | |
1822 | return decl; | |
1823 | ||
e60a6f7b | 1824 | decl = build_decl (input_location, |
1825 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1826 | build_pointer_type (gfc_get_function_type (sym))); |
1827 | ||
ea6f8461 | 1828 | if (sym->module) |
1829 | { | |
1830 | /* Apply name mangling. */ | |
1831 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1832 | if (sym->attr.use_assoc) | |
1833 | DECL_IGNORED_P (decl) = 1; | |
1834 | } | |
a90fe829 | 1835 | |
e72f979a | 1836 | if ((sym->ns->proc_name |
1837 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1838 | || sym->attr.contained) |
1839 | gfc_add_decl_to_function (decl); | |
cf269acc | 1840 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1841 | gfc_add_decl_to_parent_function (decl); |
1842 | ||
1843 | sym->backend_decl = decl; | |
1844 | ||
cf269acc | 1845 | /* If a variable is USE associated, it's always external. */ |
1846 | if (sym->attr.use_assoc) | |
1847 | { | |
1848 | DECL_EXTERNAL (decl) = 1; | |
1849 | TREE_PUBLIC (decl) = 1; | |
1850 | } | |
1851 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1852 | { | |
1853 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1854 | TREE_PUBLIC (decl) = 1; |
1855 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1856 | { | |
1857 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1858 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1859 | } | |
cf269acc | 1860 | TREE_STATIC (decl) = 1; |
1861 | } | |
1862 | ||
cad0ddcf | 1863 | if (!sym->attr.use_assoc |
1864 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1865 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1866 | TREE_STATIC (decl) = 1; | |
1867 | ||
1868 | if (TREE_STATIC (decl) && sym->value) | |
1869 | { | |
1870 | /* Add static initializer. */ | |
1871 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1872 | TREE_TYPE (decl), |
1873 | sym->attr.dimension, | |
1874 | false, true); | |
cad0ddcf | 1875 | } |
1876 | ||
8fb1768c | 1877 | /* Handle threadprivate procedure pointers. */ |
1878 | if (sym->attr.threadprivate | |
1879 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1880 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1881 | |
36b0a1b0 | 1882 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1883 | decl_attributes (&decl, attributes, 0); | |
1884 | ||
cad0ddcf | 1885 | return decl; |
1886 | } | |
1887 | ||
1888 | ||
4ee9c684 | 1889 | /* Get a basic decl for an external function. */ |
1890 | ||
1891 | tree | |
1892 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1893 | { | |
1894 | tree type; | |
1895 | tree fndecl; | |
36b0a1b0 | 1896 | tree attributes; |
4ee9c684 | 1897 | gfc_expr e; |
1898 | gfc_intrinsic_sym *isym; | |
1899 | gfc_expr argexpr; | |
17000b91 | 1900 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1901 | tree name; |
1902 | tree mangled_name; | |
83aeedb9 | 1903 | gfc_gsymbol *gsym; |
4ee9c684 | 1904 | |
1905 | if (sym->backend_decl) | |
1906 | return sym->backend_decl; | |
1907 | ||
1b716045 | 1908 | /* We should never be creating external decls for alternate entry points. |
1909 | The procedure may be an alternate entry point, but we don't want/need | |
1910 | to know that. */ | |
22d678e8 | 1911 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1912 | |
cad0ddcf | 1913 | if (sym->attr.proc_pointer) |
1914 | return get_proc_pointer_decl (sym); | |
1915 | ||
83aeedb9 | 1916 | /* See if this is an external procedure from the same file. If so, |
1917 | return the backend_decl. */ | |
da5c730d | 1918 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1919 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1920 | |
c8b913ab | 1921 | if (gsym && !gsym->defined) |
1922 | gsym = NULL; | |
1923 | ||
1924 | /* This can happen because of C binding. */ | |
1925 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1926 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1927 | goto module_sym; | |
1928 | ||
044bbd71 | 1929 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1930 | && !sym->backend_decl | |
1931 | && gsym && gsym->ns | |
1932 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1933 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1934 | { |
d896f9b3 | 1935 | if (!gsym->ns->proc_name->backend_decl) |
1936 | { | |
1937 | /* By construction, the external function cannot be | |
1938 | a contained procedure. */ | |
1939 | locus old_loc; | |
d896f9b3 | 1940 | |
4671339c | 1941 | gfc_save_backend_locus (&old_loc); |
9078126c | 1942 | push_cfun (NULL); |
d896f9b3 | 1943 | |
1944 | gfc_create_function_decl (gsym->ns, true); | |
1945 | ||
1946 | pop_cfun (); | |
4671339c | 1947 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1948 | } |
1949 | ||
83aeedb9 | 1950 | /* If the namespace has entries, the proc_name is the |
1951 | entry master. Find the entry and use its backend_decl. | |
1952 | otherwise, use the proc_name backend_decl. */ | |
1953 | if (gsym->ns->entries) | |
1954 | { | |
1955 | gfc_entry_list *entry = gsym->ns->entries; | |
1956 | ||
1957 | for (; entry; entry = entry->next) | |
1958 | { | |
1959 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1960 | { | |
1961 | sym->backend_decl = entry->sym->backend_decl; | |
1962 | break; | |
1963 | } | |
1964 | } | |
1965 | } | |
1966 | else | |
40c74b02 | 1967 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1968 | |
1969 | if (sym->backend_decl) | |
40c74b02 | 1970 | { |
1971 | /* Avoid problems of double deallocation of the backend declaration | |
1972 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1973 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1974 | sym->attr.use_assoc = 0; | |
1975 | ||
1976 | return sym->backend_decl; | |
1977 | } | |
83aeedb9 | 1978 | } |
1979 | ||
7ea64434 | 1980 | /* See if this is a module procedure from the same file. If so, |
1981 | return the backend_decl. */ | |
1982 | if (sym->module) | |
1983 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1984 | ||
c8b913ab | 1985 | module_sym: |
1986 | if (gsym && gsym->ns | |
1987 | && (gsym->type == GSYM_MODULE | |
1988 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 1989 | { |
1990 | gfc_symbol *s; | |
1991 | ||
1992 | s = NULL; | |
c8b913ab | 1993 | if (gsym->type == GSYM_MODULE) |
1994 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1995 | else | |
1996 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
1997 | ||
7ea64434 | 1998 | if (s && s->backend_decl) |
1999 | { | |
85ec2f13 | 2000 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2001 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2002 | true); | |
2003 | else if (sym->ts.type == BT_CHARACTER) | |
2004 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 2005 | sym->backend_decl = s->backend_decl; |
2006 | return sym->backend_decl; | |
2007 | } | |
2008 | } | |
2009 | ||
4ee9c684 | 2010 | if (sym->attr.intrinsic) |
2011 | { | |
2012 | /* Call the resolution function to get the actual name. This is | |
2013 | a nasty hack which relies on the resolution functions only looking | |
2014 | at the first argument. We pass NULL for the second argument | |
2015 | otherwise things like AINT get confused. */ | |
2016 | isym = gfc_find_function (sym->name); | |
22d678e8 | 2017 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 2018 | |
2019 | memset (&e, 0, sizeof (e)); | |
2020 | e.expr_type = EXPR_FUNCTION; | |
2021 | ||
2022 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 2023 | gcc_assert (isym->formal); |
4ee9c684 | 2024 | argexpr.ts = isym->formal->ts; |
2025 | ||
2026 | if (isym->formal->next == NULL) | |
2027 | isym->resolve.f1 (&e, &argexpr); | |
2028 | else | |
2029 | { | |
37e0271a | 2030 | if (isym->formal->next->next == NULL) |
2031 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2032 | else | |
2033 | { | |
7fe55cc9 | 2034 | if (isym->formal->next->next->next == NULL) |
2035 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2036 | else | |
2037 | { | |
2038 | /* All specific intrinsics take less than 5 arguments. */ | |
2039 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2040 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2041 | } | |
37e0271a | 2042 | } |
4ee9c684 | 2043 | } |
bdaed7d2 | 2044 | |
829d7a08 | 2045 | if (flag_f2c |
bdaed7d2 | 2046 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2047 | || e.ts.type == BT_COMPLEX)) | |
2048 | { | |
2049 | /* Specific which needs a different implementation if f2c | |
2050 | calling conventions are used. */ | |
17000b91 | 2051 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 2052 | } |
2053 | else | |
17000b91 | 2054 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 2055 | |
4ee9c684 | 2056 | name = get_identifier (s); |
2057 | mangled_name = name; | |
2058 | } | |
2059 | else | |
2060 | { | |
2061 | name = gfc_sym_identifier (sym); | |
2062 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2063 | } | |
2064 | ||
2065 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2066 | fndecl = build_decl (input_location, |
2067 | FUNCTION_DECL, name, type); | |
4ee9c684 | 2068 | |
e27454ee | 2069 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2070 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2071 | the opposite of declaring a function as static in C). */ |
e27454ee | 2072 | DECL_EXTERNAL (fndecl) = 1; |
2073 | TREE_PUBLIC (fndecl) = 1; | |
2074 | ||
1236e28b | 2075 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2076 | decl_attributes (&fndecl, attributes, 0); | |
2077 | ||
2078 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2079 | |
2080 | /* Set the context of this decl. */ | |
2081 | if (0 && sym->ns && sym->ns->proc_name) | |
2082 | { | |
2083 | /* TODO: Add external decls to the appropriate scope. */ | |
2084 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2085 | } | |
2086 | else | |
2087 | { | |
f888a3fb | 2088 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2089 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2090 | } | |
2091 | ||
4ee9c684 | 2092 | /* Set attributes for PURE functions. A call to PURE function in the |
2093 | Fortran 95 sense is both pure and without side effects in the C | |
2094 | sense. */ | |
bead0399 | 2095 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2096 | { |
4d4b9f0e | 2097 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2098 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2099 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2100 | parameters and don't use alternate returns (is this | |
2101 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2102 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2103 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2104 | } |
2105 | ||
6e27d773 | 2106 | /* Mark non-returning functions. */ |
2107 | if (sym->attr.noreturn) | |
2108 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2109 | ||
4ee9c684 | 2110 | sym->backend_decl = fndecl; |
2111 | ||
2112 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2113 | pushdecl_top_level (fndecl); | |
2114 | ||
15b28553 | 2115 | if (sym->formal_ns |
2116 | && sym->formal_ns->proc_name == sym | |
2117 | && sym->formal_ns->omp_declare_simd) | |
2118 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2119 | ||
4ee9c684 | 2120 | return fndecl; |
2121 | } | |
2122 | ||
2123 | ||
2124 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2125 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2126 | a master function with alternate entry points. */ | |
4ee9c684 | 2127 | |
1b716045 | 2128 | static void |
d896f9b3 | 2129 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2130 | { |
36b0a1b0 | 2131 | tree fndecl, type, attributes; |
4ee9c684 | 2132 | symbol_attribute attr; |
1b716045 | 2133 | tree result_decl; |
4ee9c684 | 2134 | gfc_formal_arglist *f; |
2135 | ||
76e207a9 | 2136 | bool module_procedure = sym->attr.module_procedure |
2137 | && sym->ns | |
2138 | && sym->ns->proc_name | |
2139 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2140 | ||
2141 | gcc_assert (!sym->attr.external || module_procedure); | |
4ee9c684 | 2142 | |
802532b9 | 2143 | if (sym->backend_decl) |
2144 | return; | |
2145 | ||
b31f705b | 2146 | /* Set the line and filename. sym->declared_at seems to point to the |
2147 | last statement for subroutines, but it'll do for now. */ | |
2148 | gfc_set_backend_locus (&sym->declared_at); | |
2149 | ||
4ee9c684 | 2150 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2151 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2152 | || DECL_FILE_SCOPE_P (current_function_decl) |
2153 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2154 | == NAMESPACE_DECL)); | |
4ee9c684 | 2155 | |
2156 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2157 | fndecl = build_decl (input_location, |
2158 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2159 | |
1236e28b | 2160 | attr = sym->attr; |
2161 | ||
e27454ee | 2162 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2163 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2164 | the opposite of declaring a function as static in C). */ |
e27454ee | 2165 | DECL_EXTERNAL (fndecl) = 0; |
2166 | ||
7d6b5754 | 2167 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2168 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2169 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2170 | && flag_module_private))) |
7d6b5754 | 2171 | sym->attr.access = ACCESS_PRIVATE; |
2172 | ||
e27454ee | 2173 | if (!current_function_decl |
c5cb468c | 2174 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2175 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2176 | || sym->attr.public_used)) | |
e27454ee | 2177 | TREE_PUBLIC (fndecl) = 1; |
2178 | ||
9e45357a | 2179 | if (sym->attr.referenced || sym->attr.entry_master) |
2180 | TREE_USED (fndecl) = 1; | |
2181 | ||
1236e28b | 2182 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2183 | decl_attributes (&fndecl, attributes, 0); | |
2184 | ||
4ee9c684 | 2185 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2186 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2187 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2188 | result_decl = NULL_TREE; |
2189 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2190 | if (attr.function) | |
2191 | { | |
2192 | if (gfc_return_by_reference (sym)) | |
2193 | type = void_type_node; | |
2194 | else | |
2195 | { | |
2196 | if (sym->result != sym) | |
2197 | result_decl = gfc_sym_identifier (sym->result); | |
2198 | ||
2199 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2200 | } | |
2201 | } | |
2202 | else | |
2203 | { | |
2204 | /* Look for alternate return placeholders. */ | |
2205 | int has_alternate_returns = 0; | |
6777213b | 2206 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2207 | { |
2208 | if (f->sym == NULL) | |
2209 | { | |
2210 | has_alternate_returns = 1; | |
2211 | break; | |
2212 | } | |
2213 | } | |
2214 | ||
2215 | if (has_alternate_returns) | |
2216 | type = integer_type_node; | |
2217 | else | |
2218 | type = void_type_node; | |
2219 | } | |
2220 | ||
e60a6f7b | 2221 | result_decl = build_decl (input_location, |
2222 | RESULT_DECL, result_decl, type); | |
540edea7 | 2223 | DECL_ARTIFICIAL (result_decl) = 1; |
2224 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2225 | DECL_CONTEXT (result_decl) = fndecl; |
2226 | DECL_RESULT (fndecl) = result_decl; | |
2227 | ||
2228 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2229 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2230 | |
4ee9c684 | 2231 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2232 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2233 | |
f888a3fb | 2234 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2235 | Fortran 95 sense is both pure and without side effects in the C |
2236 | sense. */ | |
bead0399 | 2237 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2238 | { |
be393645 | 2239 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2240 | including an alternate return. In that case it can also be |
231e961a | 2241 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2242 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2243 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2244 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2245 | } | |
2246 | ||
36b0a1b0 | 2247 | |
4ee9c684 | 2248 | /* Layout the function declaration and put it in the binding level |
2249 | of the current function. */ | |
d896f9b3 | 2250 | |
4c197fd0 | 2251 | if (global) |
d896f9b3 | 2252 | pushdecl_top_level (fndecl); |
2253 | else | |
2254 | pushdecl (fndecl); | |
1b716045 | 2255 | |
16a40513 | 2256 | /* Perform name mangling if this is a top level or module procedure. */ |
2257 | if (current_function_decl == NULL_TREE) | |
2258 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2259 | ||
1b716045 | 2260 | sym->backend_decl = fndecl; |
2261 | } | |
2262 | ||
2263 | ||
2264 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2265 | ||
2266 | static void | |
2267 | create_function_arglist (gfc_symbol * sym) | |
2268 | { | |
2269 | tree fndecl; | |
2270 | gfc_formal_arglist *f; | |
d4163395 | 2271 | tree typelist, hidden_typelist; |
2272 | tree arglist, hidden_arglist; | |
1b716045 | 2273 | tree type; |
2274 | tree parm; | |
2275 | ||
2276 | fndecl = sym->backend_decl; | |
2277 | ||
e4b2c26c | 2278 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2279 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2280 | arglist = NULL_TREE; |
d4163395 | 2281 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2282 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2283 | |
2284 | if (sym->attr.entry_master) | |
2285 | { | |
2286 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2287 | parm = build_decl (input_location, |
2288 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2289 | |
1b716045 | 2290 | DECL_CONTEXT (parm) = fndecl; |
2291 | DECL_ARG_TYPE (parm) = type; | |
2292 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2293 | gfc_finish_decl (parm); |
d95efb59 | 2294 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2295 | |
2296 | arglist = chainon (arglist, parm); | |
2297 | typelist = TREE_CHAIN (typelist); | |
2298 | } | |
2299 | ||
e4b2c26c | 2300 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2301 | { |
d4163395 | 2302 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2303 | |
e4b2c26c | 2304 | if (sym->ts.type == BT_CHARACTER) |
2305 | { | |
e4b2c26c | 2306 | /* Length of character result. */ |
d4163395 | 2307 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2308 | |
e60a6f7b | 2309 | length = build_decl (input_location, |
2310 | PARM_DECL, | |
e4b2c26c | 2311 | get_identifier (".__result"), |
d4163395 | 2312 | len_type); |
b345a09f | 2313 | if (POINTER_TYPE_P (len_type)) |
2314 | { | |
2315 | sym->ts.u.cl->passed_length = length; | |
2316 | TREE_USED (length) = 1; | |
2317 | } | |
2318 | else if (!sym->ts.u.cl->length) | |
e4b2c26c | 2319 | { |
eeebe20b | 2320 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2321 | TREE_USED (length) = 1; |
4ee9c684 | 2322 | } |
22d678e8 | 2323 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2324 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2325 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2326 | TREE_READONLY (length) = 1; |
b5b40b3f | 2327 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2328 | gfc_finish_decl (length); |
eeebe20b | 2329 | if (sym->ts.u.cl->backend_decl == NULL |
2330 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2331 | { |
2332 | gfc_symbol *arg; | |
2333 | tree backend_decl; | |
4ee9c684 | 2334 | |
eeebe20b | 2335 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2336 | { |
e60a6f7b | 2337 | tree len = build_decl (input_location, |
2338 | VAR_DECL, | |
d4163395 | 2339 | get_identifier ("..__result"), |
2340 | gfc_charlen_type_node); | |
2341 | DECL_ARTIFICIAL (len) = 1; | |
2342 | TREE_USED (len) = 1; | |
eeebe20b | 2343 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2344 | } |
4ee9c684 | 2345 | |
d4163395 | 2346 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2347 | arg = sym->result ? sym->result : sym; | |
2348 | backend_decl = arg->backend_decl; | |
2349 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2350 | type. */ | |
2351 | arg->backend_decl = NULL; | |
2352 | type = gfc_sym_type (arg); | |
2353 | arg->backend_decl = backend_decl; | |
2354 | type = build_reference_type (type); | |
2355 | } | |
2356 | } | |
4ee9c684 | 2357 | |
e60a6f7b | 2358 | parm = build_decl (input_location, |
2359 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2360 | |
d4163395 | 2361 | DECL_CONTEXT (parm) = fndecl; |
2362 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2363 | TREE_READONLY (parm) = 1; | |
2364 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2365 | gfc_finish_decl (parm); |
4ee9c684 | 2366 | |
d4163395 | 2367 | arglist = chainon (arglist, parm); |
2368 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2369 | |
d4163395 | 2370 | if (sym->ts.type == BT_CHARACTER) |
2371 | { | |
2372 | gfc_allocate_lang_decl (parm); | |
2373 | arglist = chainon (arglist, length); | |
e4b2c26c | 2374 | typelist = TREE_CHAIN (typelist); |
2375 | } | |
2376 | } | |
4ee9c684 | 2377 | |
d4163395 | 2378 | hidden_typelist = typelist; |
6777213b | 2379 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2380 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2381 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2382 | ||
6777213b | 2383 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2384 | { |
2385 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2386 | |
e4b2c26c | 2387 | /* Ignore alternate returns. */ |
2388 | if (f->sym == NULL) | |
2389 | continue; | |
4ee9c684 | 2390 | |
e4b2c26c | 2391 | type = TREE_VALUE (typelist); |
4ee9c684 | 2392 | |
296db1d1 | 2393 | if (f->sym->ts.type == BT_CHARACTER |
2394 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2395 | { |
2396 | tree len_type = TREE_VALUE (hidden_typelist); | |
2397 | tree length = NULL_TREE; | |
617125a6 | 2398 | if (!f->sym->ts.deferred) |
2399 | gcc_assert (len_type == gfc_charlen_type_node); | |
2400 | else | |
2401 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2402 | |
2403 | strcpy (&name[1], f->sym->name); | |
2404 | name[0] = '_'; | |
e60a6f7b | 2405 | length = build_decl (input_location, |
2406 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2407 | |
d4163395 | 2408 | hidden_arglist = chainon (hidden_arglist, length); |
2409 | DECL_CONTEXT (length) = fndecl; | |
2410 | DECL_ARTIFICIAL (length) = 1; | |
2411 | DECL_ARG_TYPE (length) = len_type; | |
2412 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2413 | gfc_finish_decl (length); |
4ee9c684 | 2414 | |
a4abf8a0 | 2415 | /* Remember the passed value. */ |
a90fe829 | 2416 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2417 | { |
2418 | /* This can happen if the same type is used for multiple | |
2419 | arguments. We need to copy cl as otherwise | |
2420 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2421 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2422 | } |
eeebe20b | 2423 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2424 | |
d4163395 | 2425 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2426 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2427 | { |
d4163395 | 2428 | TREE_USED (length) = 1; |
eeebe20b | 2429 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2430 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2431 | } |
2432 | ||
2433 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2434 | ||
eeebe20b | 2435 | if (f->sym->ts.u.cl->backend_decl == NULL |
2436 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2437 | { |
ddcfeaf1 | 2438 | if (POINTER_TYPE_P (len_type)) |
2439 | f->sym->ts.u.cl->backend_decl = | |
2440 | build_fold_indirect_ref_loc (input_location, length); | |
2441 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2442 | gfc_create_string_length (f->sym); |
2443 | ||
2444 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2445 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2446 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2447 | else | |
2448 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2449 | } |
4ee9c684 | 2450 | } |
532c2d79 | 2451 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2452 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2453 | Thus, we will use a hidden argument in that case. */ |
2454 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2455 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
d7cd448a | 2456 | && !gfc_bt_struct (f->sym->ts.type)) |
532c2d79 | 2457 | { |
2458 | tree tmp; | |
2459 | strcpy (&name[1], f->sym->name); | |
2460 | name[0] = '_'; | |
2461 | tmp = build_decl (input_location, | |
2462 | PARM_DECL, get_identifier (name), | |
2463 | boolean_type_node); | |
2464 | ||
2465 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2466 | DECL_CONTEXT (tmp) = fndecl; | |
2467 | DECL_ARTIFICIAL (tmp) = 1; | |
2468 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2469 | TREE_READONLY (tmp) = 1; | |
2470 | gfc_finish_decl (tmp); | |
2471 | } | |
4ee9c684 | 2472 | |
d4163395 | 2473 | /* For non-constant length array arguments, make sure they use |
2474 | a different type node from TYPE_ARG_TYPES type. */ | |
2475 | if (f->sym->attr.dimension | |
2476 | && type == TREE_VALUE (typelist) | |
2477 | && TREE_CODE (type) == POINTER_TYPE | |
2478 | && GFC_ARRAY_TYPE_P (type) | |
2479 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2480 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2481 | { | |
2482 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2483 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2484 | else | |
2485 | type = gfc_sym_type (f->sym); | |
2486 | } | |
2487 | ||
cad0ddcf | 2488 | if (f->sym->attr.proc_pointer) |
2489 | type = build_pointer_type (type); | |
2490 | ||
2364aa60 | 2491 | if (f->sym->attr.volatile_) |
2492 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2493 | ||
69b1505f | 2494 | /* Build the argument declaration. */ |
e60a6f7b | 2495 | parm = build_decl (input_location, |
2496 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2497 | |
2364aa60 | 2498 | if (f->sym->attr.volatile_) |
2499 | { | |
2500 | TREE_THIS_VOLATILE (parm) = 1; | |
2501 | TREE_SIDE_EFFECTS (parm) = 1; | |
2502 | } | |
2503 | ||
d4163395 | 2504 | /* Fill in arg stuff. */ |
2505 | DECL_CONTEXT (parm) = fndecl; | |
2506 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2507 | /* All implementation args except for VALUE are read-only. */ |
2508 | if (!f->sym->attr.value) | |
2509 | TREE_READONLY (parm) = 1; | |
98923a84 | 2510 | if (POINTER_TYPE_P (type) |
2511 | && (!f->sym->attr.proc_pointer | |
2512 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2513 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2514 | |
b9c7fce7 | 2515 | gfc_finish_decl (parm); |
cf5f881f | 2516 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2517 | |
2518 | f->sym->backend_decl = parm; | |
2519 | ||
7dce33fe | 2520 | /* Coarrays which are descriptorless or assumed-shape pass with |
2521 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2522 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2523 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2524 | && !f->sym->attr.allocatable) | |
2525 | || (f->sym->ts.type == BT_CLASS | |
2526 | && CLASS_DATA (f->sym)->attr.codimension | |
2527 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2528 | { |
2529 | tree caf_type; | |
2530 | tree token; | |
2531 | tree offset; | |
2532 | ||
2533 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2534 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2535 | caf_type = f->sym->ts.type == BT_CLASS |
2536 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2537 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2538 | |
85c94a64 | 2539 | token = build_decl (input_location, PARM_DECL, |
2540 | create_tmp_var_name ("caf_token"), | |
2541 | build_qualified_type (pvoid_type_node, | |
2542 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2543 | if ((f->sym->ts.type != BT_CLASS |
2544 | && f->sym->as->type != AS_DEFERRED) | |
2545 | || (f->sym->ts.type == BT_CLASS | |
2546 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2547 | { |
2548 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2549 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2550 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2551 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2552 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2553 | } | |
2554 | else | |
2555 | { | |
2556 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2557 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2558 | } | |
a90fe829 | 2559 | |
85c94a64 | 2560 | DECL_CONTEXT (token) = fndecl; |
2561 | DECL_ARTIFICIAL (token) = 1; | |
2562 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2563 | TREE_READONLY (token) = 1; | |
2564 | hidden_arglist = chainon (hidden_arglist, token); | |
2565 | gfc_finish_decl (token); | |
2566 | ||
85c94a64 | 2567 | offset = build_decl (input_location, PARM_DECL, |
2568 | create_tmp_var_name ("caf_offset"), | |
2569 | gfc_array_index_type); | |
2570 | ||
d44f2f7c | 2571 | if ((f->sym->ts.type != BT_CLASS |
2572 | && f->sym->as->type != AS_DEFERRED) | |
2573 | || (f->sym->ts.type == BT_CLASS | |
2574 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2575 | { |
2576 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2577 | == NULL_TREE); | |
2578 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2579 | } | |
2580 | else | |
2581 | { | |
2582 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2583 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2584 | } | |
85c94a64 | 2585 | DECL_CONTEXT (offset) = fndecl; |
2586 | DECL_ARTIFICIAL (offset) = 1; | |
2587 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2588 | TREE_READONLY (offset) = 1; | |
2589 | hidden_arglist = chainon (hidden_arglist, offset); | |
2590 | gfc_finish_decl (offset); | |
2591 | } | |
2592 | ||
d4163395 | 2593 | arglist = chainon (arglist, parm); |
e4b2c26c | 2594 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2595 | } |
e4b2c26c | 2596 | |
465e4a95 | 2597 | /* Add the hidden string length parameters, unless the procedure |
2598 | is bind(C). */ | |
2599 | if (!sym->attr.is_bind_c) | |
2600 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2601 | |
ebe27ea2 | 2602 | gcc_assert (hidden_typelist == NULL_TREE |
2603 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2604 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2605 | } |
e4b2c26c | 2606 | |
1b716045 | 2607 | /* Do the setup necessary before generating the body of a function. */ |
2608 | ||
2609 | static void | |
2610 | trans_function_start (gfc_symbol * sym) | |
2611 | { | |
2612 | tree fndecl; | |
2613 | ||
2614 | fndecl = sym->backend_decl; | |
2615 | ||
f888a3fb | 2616 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2617 | current_function_decl = fndecl; |
2618 | ||
f888a3fb | 2619 | /* Let the world know what we're about to do. */ |
1b716045 | 2620 | announce_function (fndecl); |
2621 | ||
16a40513 | 2622 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2623 | { |
f888a3fb | 2624 | /* Create RTL for function declaration. */ |
1b716045 | 2625 | rest_of_decl_compilation (fndecl, 1, 0); |
2626 | } | |
2627 | ||
f888a3fb | 2628 | /* Create RTL for function definition. */ |
1b716045 | 2629 | make_decl_rtl (fndecl); |
2630 | ||
00cf115c | 2631 | allocate_struct_function (fndecl, false); |
1b716045 | 2632 | |
f888a3fb | 2633 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2634 | pushlevel (); |
1b716045 | 2635 | } |
2636 | ||
2637 | /* Create thunks for alternate entry points. */ | |
2638 | ||
2639 | static void | |
d896f9b3 | 2640 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2641 | { |
2642 | gfc_formal_arglist *formal; | |
2643 | gfc_formal_arglist *thunk_formal; | |
2644 | gfc_entry_list *el; | |
2645 | gfc_symbol *thunk_sym; | |
2646 | stmtblock_t body; | |
2647 | tree thunk_fndecl; | |
1b716045 | 2648 | tree tmp; |
b31f705b | 2649 | locus old_loc; |
1b716045 | 2650 | |
2651 | /* This should always be a toplevel function. */ | |
22d678e8 | 2652 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2653 | |
4671339c | 2654 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2655 | for (el = ns->entries; el; el = el->next) |
2656 | { | |
f1f41a6c | 2657 | vec<tree, va_gc> *args = NULL; |
2658 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2659 | |
1b716045 | 2660 | thunk_sym = el->sym; |
a90fe829 | 2661 | |
d896f9b3 | 2662 | build_function_decl (thunk_sym, global); |
1b716045 | 2663 | create_function_arglist (thunk_sym); |
2664 | ||
2665 | trans_function_start (thunk_sym); | |
2666 | ||
2667 | thunk_fndecl = thunk_sym->backend_decl; | |
2668 | ||
e5004242 | 2669 | gfc_init_block (&body); |
1b716045 | 2670 | |
f888a3fb | 2671 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2672 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2673 | vec_safe_push (args, tmp); |
1b716045 | 2674 | |
c6871095 | 2675 | if (thunk_sym->attr.function) |
2676 | { | |
2677 | if (gfc_return_by_reference (ns->proc_name)) | |
2678 | { | |
2679 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2680 | vec_safe_push (args, ref); |
c6871095 | 2681 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2682 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2683 | } |
2684 | } | |
2685 | ||
6777213b | 2686 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2687 | formal = formal->next) | |
1b716045 | 2688 | { |
c6871095 | 2689 | /* Ignore alternate returns. */ |
2690 | if (formal->sym == NULL) | |
2691 | continue; | |
2692 | ||
1b716045 | 2693 | /* We don't have a clever way of identifying arguments, so resort to |
2694 | a brute-force search. */ | |
6777213b | 2695 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2696 | thunk_formal; |
2697 | thunk_formal = thunk_formal->next) | |
2698 | { | |
2699 | if (thunk_formal->sym == formal->sym) | |
2700 | break; | |
2701 | } | |
2702 | ||
2703 | if (thunk_formal) | |
2704 | { | |
2705 | /* Pass the argument. */ | |
d95efb59 | 2706 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2707 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2708 | if (formal->sym->ts.type == BT_CHARACTER) |
2709 | { | |
eeebe20b | 2710 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2711 | vec_safe_push (string_args, tmp); |
1b716045 | 2712 | } |
2713 | } | |
2714 | else | |
2715 | { | |
2716 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2717 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2718 | if (formal->sym->ts.type == BT_CHARACTER) |
2719 | { | |
7d3075f6 | 2720 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2721 | vec_safe_push (string_args, tmp); |
1b716045 | 2722 | } |
2723 | } | |
2724 | } | |
2725 | ||
2726 | /* Call the master function. */ | |
f1f41a6c | 2727 | vec_safe_splice (args, string_args); |
1b716045 | 2728 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2729 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2730 | if (ns->proc_name->attr.mixed_entry_master) |
2731 | { | |
2732 | tree union_decl, field; | |
2733 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2734 | ||
e60a6f7b | 2735 | union_decl = build_decl (input_location, |
2736 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2737 | TREE_TYPE (master_type)); |
2738 | DECL_ARTIFICIAL (union_decl) = 1; | |
2739 | DECL_EXTERNAL (union_decl) = 0; | |
2740 | TREE_PUBLIC (union_decl) = 0; | |
2741 | TREE_USED (union_decl) = 1; | |
2742 | layout_decl (union_decl, 0); | |
2743 | pushdecl (union_decl); | |
2744 | ||
2745 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2746 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2747 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2748 | gfc_add_expr_to_block (&body, tmp); |
2749 | ||
2750 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2751 | field; field = DECL_CHAIN (field)) |
c6871095 | 2752 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2753 | thunk_sym->result->name) == 0) | |
2754 | break; | |
2755 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2756 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2757 | TREE_TYPE (field), union_decl, field, | |
2758 | NULL_TREE); | |
a90fe829 | 2759 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2760 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2761 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2762 | tmp = build1_v (RETURN_EXPR, tmp); |
2763 | } | |
2764 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2765 | != void_type_node) | |
2766 | { | |
fd779e1d | 2767 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2768 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2769 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2770 | tmp = build1_v (RETURN_EXPR, tmp); |
2771 | } | |
1b716045 | 2772 | gfc_add_expr_to_block (&body, tmp); |
2773 | ||
2774 | /* Finish off this function and send it for code generation. */ | |
2775 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2776 | tmp = getdecls (); |
cde2be84 | 2777 | poplevel (1, 1); |
1b716045 | 2778 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2779 | DECL_SAVED_TREE (thunk_fndecl) |
2780 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2781 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2782 | |
2783 | /* Output the GENERIC tree. */ | |
2784 | dump_function (TDI_original, thunk_fndecl); | |
2785 | ||
2786 | /* Store the end of the function, so that we get good line number | |
2787 | info for the epilogue. */ | |
2788 | cfun->function_end_locus = input_location; | |
2789 | ||
2790 | /* We're leaving the context of this function, so zap cfun. | |
2791 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2792 | tree_rest_of_compilation. */ | |
87d4aa85 | 2793 | set_cfun (NULL); |
1b716045 | 2794 | |
2795 | current_function_decl = NULL_TREE; | |
2796 | ||
35ee1c66 | 2797 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2798 | |
2799 | /* We share the symbols in the formal argument list with other entry | |
2800 | points and the master function. Clear them so that they are | |
2801 | recreated for each function. */ | |
6777213b | 2802 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2803 | formal = formal->next) | |
c6871095 | 2804 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2805 | { | |
2806 | formal->sym->backend_decl = NULL_TREE; | |
2807 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2808 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2809 | } |
2810 | ||
2811 | if (thunk_sym->attr.function) | |
1b716045 | 2812 | { |
c6871095 | 2813 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2814 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2815 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2816 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2817 | } |
2818 | } | |
b31f705b | 2819 | |
4671339c | 2820 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2821 | } |
2822 | ||
2823 | ||
2824 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2825 | points. If global is true, generate the function in the global binding |
2826 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2827 | |
2828 | void | |
d896f9b3 | 2829 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2830 | { |
2831 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2832 | build_function_decl (ns->proc_name, global); |
1b716045 | 2833 | |
f888a3fb | 2834 | /* Compile the entry thunks. */ |
1b716045 | 2835 | if (ns->entries) |
d896f9b3 | 2836 | build_entry_thunks (ns, global); |
1b716045 | 2837 | |
2838 | /* Now create the read argument list. */ | |
2839 | create_function_arglist (ns->proc_name); | |
15b28553 | 2840 | |
2841 | if (ns->omp_declare_simd) | |
2842 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2843 | } |
2844 | ||
c750cc52 | 2845 | /* Return the decl used to hold the function return value. If |
3350e716 | 2846 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2847 | |
2848 | tree | |
c750cc52 | 2849 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2850 | { |
c750cc52 | 2851 | tree decl; |
2852 | tree length; | |
2853 | tree this_fake_result_decl; | |
2854 | tree this_function_decl; | |
4ee9c684 | 2855 | |
2856 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2857 | ||
c750cc52 | 2858 | if (parent_flag) |
2859 | { | |
2860 | this_fake_result_decl = parent_fake_result_decl; | |
2861 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2862 | } | |
2863 | else | |
2864 | { | |
2865 | this_fake_result_decl = current_fake_result_decl; | |
2866 | this_function_decl = current_function_decl; | |
2867 | } | |
2868 | ||
c6871095 | 2869 | if (sym |
c750cc52 | 2870 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2871 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2872 | && sym != sym->ns->proc_name) |
2873 | { | |
d4163395 | 2874 | tree t = NULL, var; |
c750cc52 | 2875 | if (this_fake_result_decl != NULL) |
2876 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2877 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2878 | break; | |
2879 | if (t) | |
2880 | return TREE_VALUE (t); | |
c750cc52 | 2881 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2882 | ||
2883 | if (parent_flag) | |
2884 | this_fake_result_decl = parent_fake_result_decl; | |
2885 | else | |
2886 | this_fake_result_decl = current_fake_result_decl; | |
2887 | ||
d4163395 | 2888 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2889 | { |
2890 | tree field; | |
2891 | ||
2892 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2893 | field; field = DECL_CHAIN (field)) |
c6871095 | 2894 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2895 | sym->name) == 0) | |
2896 | break; | |
2897 | ||
2898 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2899 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2900 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2901 | } |
c750cc52 | 2902 | |
2903 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2904 | if (parent_flag) | |
2905 | gfc_add_decl_to_parent_function (var); | |
2906 | else | |
2907 | gfc_add_decl_to_function (var); | |
2908 | ||
d4163395 | 2909 | SET_DECL_VALUE_EXPR (var, decl); |
2910 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2911 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2912 | |
2913 | TREE_CHAIN (this_fake_result_decl) | |
2914 | = tree_cons (get_identifier (sym->name), var, | |
2915 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2916 | return var; |
c6871095 | 2917 | } |
2918 | ||
c750cc52 | 2919 | if (this_fake_result_decl != NULL_TREE) |
2920 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2921 | |
2922 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2923 | sym is NULL. */ | |
2924 | if (!sym) | |
2925 | return NULL_TREE; | |
2926 | ||
d4163395 | 2927 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2928 | { |
eeebe20b | 2929 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2930 | length = gfc_create_string_length (sym); |
2931 | else | |
eeebe20b | 2932 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 2933 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
99042714 | 2934 | gfc_add_decl_to_function (length); |
4ee9c684 | 2935 | } |
2936 | ||
2937 | if (gfc_return_by_reference (sym)) | |
2938 | { | |
c750cc52 | 2939 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2940 | |
c750cc52 | 2941 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2942 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2943 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2944 | |
2945 | TREE_USED (decl) = 1; | |
2946 | if (sym->as) | |
2947 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2948 | } | |
2949 | else | |
2950 | { | |
2951 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2952 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2953 | |
3350e716 | 2954 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2955 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2956 | VAR_DECL, get_identifier (name), |
3350e716 | 2957 | gfc_sym_type (sym)); |
2958 | else | |
1e71b314 | 2959 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2960 | VAR_DECL, get_identifier (name), |
3350e716 | 2961 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2962 | DECL_ARTIFICIAL (decl) = 1; |
2963 | DECL_EXTERNAL (decl) = 0; | |
2964 | TREE_PUBLIC (decl) = 0; | |
2965 | TREE_USED (decl) = 1; | |
764f1175 | 2966 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2967 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2968 | |
2969 | layout_decl (decl, 0); | |
cf5f881f | 2970 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 2971 | |
c750cc52 | 2972 | if (parent_flag) |
2973 | gfc_add_decl_to_parent_function (decl); | |
2974 | else | |
2975 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2976 | } |
2977 | ||
c750cc52 | 2978 | if (parent_flag) |
2979 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2980 | else | |
2981 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2982 | |
2983 | return decl; | |
2984 | } | |
2985 | ||
2986 | ||
2987 | /* Builds a function decl. The remaining parameters are the types of the | |
2988 | function arguments. Negative nargs indicates a varargs function. */ | |
2989 | ||
8ce86007 | 2990 | static tree |
2991 | build_library_function_decl_1 (tree name, const char *spec, | |
2992 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2993 | { |
f1f41a6c | 2994 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2995 | tree fntype; |
2996 | tree fndecl; | |
4ee9c684 | 2997 | int n; |
2998 | ||
2999 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 3000 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 3001 | |
4ee9c684 | 3002 | /* Create a list of the argument types. */ |
f1f41a6c | 3003 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 3004 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 3005 | { |
5edc3af9 | 3006 | tree argtype = va_arg (p, tree); |
f1f41a6c | 3007 | arglist->quick_push (argtype); |
4ee9c684 | 3008 | } |
3009 | ||
3010 | /* Build the function type and decl. */ | |
5edc3af9 | 3011 | if (nargs >= 0) |
3012 | fntype = build_function_type_vec (rettype, arglist); | |
3013 | else | |
3014 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 3015 | if (spec) |
3016 | { | |
3017 | tree attr_args = build_tree_list (NULL_TREE, | |
3018 | build_string (strlen (spec), spec)); | |
3019 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3020 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3021 | fntype = build_type_attribute_variant (fntype, attrs); | |
3022 | } | |
e60a6f7b | 3023 | fndecl = build_decl (input_location, |
3024 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 3025 | |
3026 | /* Mark this decl as external. */ | |
3027 | DECL_EXTERNAL (fndecl) = 1; | |
3028 | TREE_PUBLIC (fndecl) = 1; | |
3029 | ||
4ee9c684 | 3030 | pushdecl (fndecl); |
3031 | ||
b2c4af5e | 3032 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 3033 | |
3034 | return fndecl; | |
3035 | } | |
3036 | ||
8ce86007 | 3037 | /* Builds a function decl. The remaining parameters are the types of the |
3038 | function arguments. Negative nargs indicates a varargs function. */ | |
3039 | ||
3040 | tree | |
3041 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3042 | { | |
3043 | tree ret; | |
3044 | va_list args; | |
3045 | va_start (args, nargs); | |
3046 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3047 | va_end (args); | |
3048 | return ret; | |
3049 | } | |
3050 | ||
3051 | /* Builds a function decl. The remaining parameters are the types of the | |
3052 | function arguments. Negative nargs indicates a varargs function. | |
3053 | The SPEC parameter specifies the function argument and return type | |
3054 | specification according to the fnspec function type attribute. */ | |
3055 | ||
4bf69bc3 | 3056 | tree |
8ce86007 | 3057 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3058 | tree rettype, int nargs, ...) | |
3059 | { | |
3060 | tree ret; | |
3061 | va_list args; | |
3062 | va_start (args, nargs); | |
3063 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3064 | va_end (args); | |
3065 | return ret; | |
3066 | } | |
3067 | ||
4ee9c684 | 3068 | static void |
3069 | gfc_build_intrinsic_function_decls (void) | |
3070 | { | |
90ba9145 | 3071 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 3072 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3073 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3074 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3075 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3076 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3077 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3078 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3079 | |
4ee9c684 | 3080 | /* String functions. */ |
241ecdc7 | 3081 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3082 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3083 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3084 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3085 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3086 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3087 | |
3088 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3089 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3090 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3091 | gfc_charlen_type_node, pchar1_type_node, | |
3092 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3093 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3094 | |
3095 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3096 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3097 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3098 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3099 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3100 | |
3101 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3102 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3103 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3104 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3105 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3106 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3107 | |
3108 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3109 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3110 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3111 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3112 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3113 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3114 | |
3115 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3116 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3117 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3118 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3119 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3120 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3121 | |
3122 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3123 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3124 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3125 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3126 | pchar1_type_node); | |
3127 | ||
3128 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3129 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3130 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3131 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3132 | integer_type_node); | |
3133 | ||
3134 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3135 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3136 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3137 | pchar1_type_node); | |
bc351485 | 3138 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3139 | |
3140 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3141 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3142 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3143 | pchar1_type_node); | |
bc351485 | 3144 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3145 | |
3146 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3147 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3148 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3149 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3150 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3151 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3152 | |
3153 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3154 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3155 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3156 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3157 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3158 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3159 | |
3160 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3161 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3162 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3163 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3164 | pchar4_type_node); | |
bc351485 | 3165 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3166 | |
3167 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3168 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3169 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3170 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3171 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3172 | |
3173 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3174 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3175 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3176 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3177 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3178 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3179 | |
3180 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3181 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3182 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3183 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3184 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3185 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3186 | |
3187 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3188 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3189 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3190 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3191 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3192 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3193 | |
3194 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3195 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3196 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3197 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3198 | pchar4_type_node); | |
3199 | ||
3200 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3201 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3202 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3203 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3204 | integer_type_node); | |
3205 | ||
3206 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3207 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3208 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3209 | pchar4_type_node); | |
bc351485 | 3210 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3211 | |
3212 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3213 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3214 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3215 | pchar4_type_node); | |
bc351485 | 3216 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3217 | |
3218 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3219 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3220 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3221 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3222 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3223 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3224 | |
3225 | ||
3226 | /* Conversion between character kinds. */ | |
3227 | ||
241ecdc7 | 3228 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3229 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3230 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3231 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3232 | |
241ecdc7 | 3233 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3234 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3235 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3236 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3237 | |
40b806de | 3238 | /* Misc. functions. */ |
5fcc6ec2 | 3239 | |
241ecdc7 | 3240 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3241 | get_identifier (PREFIX("ttynam")), ".W", | |
3242 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3243 | integer_type_node); | |
3244 | ||
3245 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3246 | get_identifier (PREFIX("fdate")), ".W", | |
3247 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3248 | ||
3249 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3250 | get_identifier (PREFIX("ctime")), ".W", | |
3251 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3252 | gfc_int8_type_node); | |
3253 | ||
3254 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3255 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3256 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3257 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3258 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3259 | |
3260 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3261 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3262 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3263 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3264 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3265 | |
3266 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3267 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3268 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3269 | pvoid_type_node); | |
537824d1 | 3270 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3271 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3272 | |
72ce5390 | 3273 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3274 | get_identifier (PREFIX("system_clock_4")), | |
3275 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3276 | gfc_pint4_type_node); | |
3277 | ||
3278 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3279 | get_identifier (PREFIX("system_clock_8")), | |
3280 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3281 | gfc_pint8_type_node); | |
3282 | ||
4ee9c684 | 3283 | /* Power functions. */ |
76834664 | 3284 | { |
920e54ef | 3285 | tree ctype, rtype, itype, jtype; |
3286 | int rkind, ikind, jkind; | |
3287 | #define NIKINDS 3 | |
3288 | #define NRKINDS 4 | |
3289 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3290 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3291 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3292 | ||
3293 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3294 | { |
920e54ef | 3295 | itype = gfc_get_int_type (ikinds[ikind]); |
3296 | ||
3297 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3298 | { | |
3299 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3300 | if (itype && jtype) | |
3301 | { | |
3302 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3303 | ikinds[jkind]); | |
3304 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3305 | gfc_build_library_function_decl (get_identifier (name), | |
3306 | jtype, 2, jtype, itype); | |
2177d98b | 3307 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3308 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3309 | } |
3310 | } | |
3311 | ||
3312 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3313 | { |
920e54ef | 3314 | rtype = gfc_get_real_type (rkinds[rkind]); |
3315 | if (rtype && itype) | |
3316 | { | |
3317 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3318 | ikinds[ikind]); | |
3319 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3320 | gfc_build_library_function_decl (get_identifier (name), | |
3321 | rtype, 2, rtype, itype); | |
2177d98b | 3322 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3323 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3324 | } |
3325 | ||
3326 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3327 | if (ctype && itype) | |
3328 | { | |
3329 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3330 | ikinds[ikind]); | |
3331 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3332 | gfc_build_library_function_decl (get_identifier (name), | |
3333 | ctype, 2,ctype, itype); | |
2177d98b | 3334 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3335 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3336 | } |
76834664 | 3337 | } |
3338 | } | |
920e54ef | 3339 | #undef NIKINDS |
3340 | #undef NRKINDS | |
76834664 | 3341 | } |
3342 | ||
241ecdc7 | 3343 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3344 | get_identifier (PREFIX("ishftc4")), | |
3345 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3346 | gfc_int4_type_node); | |
bc351485 | 3347 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3348 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3349 | |
241ecdc7 | 3350 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3351 | get_identifier (PREFIX("ishftc8")), | |
3352 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3353 | gfc_int4_type_node); | |
bc351485 | 3354 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3355 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3356 | |
920e54ef | 3357 | if (gfc_int16_type_node) |
bc351485 | 3358 | { |
3359 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3360 | get_identifier (PREFIX("ishftc16")), |
3361 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3362 | gfc_int4_type_node); | |
bc351485 | 3363 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3364 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3365 | } | |
920e54ef | 3366 | |
4e8e57b0 | 3367 | /* BLAS functions. */ |
3368 | { | |
36c921b9 | 3369 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3370 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3371 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3372 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3373 | tree pz = build_pointer_type | |
3374 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3375 | ||
3376 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3377 | (get_identifier | |
829d7a08 | 3378 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3379 | void_type_node, 15, pchar_type_node, |
3380 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3381 | ps, pint, ps, ps, pint, integer_type_node, |
3382 | integer_type_node); | |
4e8e57b0 | 3383 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3384 | (get_identifier | |
829d7a08 | 3385 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3386 | void_type_node, 15, pchar_type_node, |
3387 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3388 | pd, pint, pd, pd, pint, integer_type_node, |
3389 | integer_type_node); | |
4e8e57b0 | 3390 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3391 | (get_identifier | |
829d7a08 | 3392 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3393 | void_type_node, 15, pchar_type_node, |
3394 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3395 | pc, pint, pc, pc, pint, integer_type_node, |
3396 | integer_type_node); | |
4e8e57b0 | 3397 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3398 | (get_identifier | |
829d7a08 | 3399 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3400 | void_type_node, 15, pchar_type_node, |
3401 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3402 | pz, pint, pz, pz, pint, integer_type_node, |
3403 | integer_type_node); | |
4e8e57b0 | 3404 | } |
3405 | ||
4ee9c684 | 3406 | /* Other functions. */ |
241ecdc7 | 3407 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3408 | get_identifier (PREFIX("size0")), ".R", | |
3409 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3410 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3411 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3412 | |
3413 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3414 | get_identifier (PREFIX("size1")), ".R", | |
3415 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3416 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3417 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3418 | |
3419 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3420 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3421 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3422 | } |
3423 | ||
3424 | ||
3425 | /* Make prototypes for runtime library functions. */ | |
3426 | ||
3427 | void | |
3428 | gfc_build_builtin_function_decls (void) | |
3429 | { | |
90ba9145 | 3430 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3431 | |
241ecdc7 | 3432 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3433 | get_identifier (PREFIX("stop_numeric")), | |
3434 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3435 | /* STOP doesn't return. */ |
98ccec97 | 3436 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3437 | ||
dff2ea5f | 3438 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3439 | get_identifier (PREFIX("stop_numeric_f08")), | |
3440 | void_type_node, 1, gfc_int4_type_node); | |
3441 | /* STOP doesn't return. */ | |
3442 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3443 | ||
241ecdc7 | 3444 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3445 | get_identifier (PREFIX("stop_string")), ".R.", | |
3446 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3447 | /* STOP doesn't return. */ |
241ecdc7 | 3448 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3449 | |
241ecdc7 | 3450 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3451 | get_identifier (PREFIX("error_stop_numeric")), | |
3452 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3453 | /* ERROR STOP doesn't return. */ |
3454 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3455 | ||
241ecdc7 | 3456 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3457 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3458 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3459 | /* ERROR STOP doesn't return. */ |
3460 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3461 | ||
241ecdc7 | 3462 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3463 | get_identifier (PREFIX("pause_numeric")), | |
3464 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3465 | |
241ecdc7 | 3466 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3467 | get_identifier (PREFIX("pause_string")), ".R.", | |
3468 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3469 | |
241ecdc7 | 3470 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3471 | get_identifier (PREFIX("runtime_error")), ".R", | |
3472 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3473 | /* The runtime_error function does not return. */ |
3474 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3475 | |
241ecdc7 | 3476 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3477 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3478 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3479 | /* The runtime_error_at function does not return. */ |
3480 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3481 | |
241ecdc7 | 3482 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3483 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3484 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3485 | ||
3486 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3487 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3488 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3489 | pchar_type_node); | |
3490 | ||
3491 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3492 | get_identifier (PREFIX("os_error")), ".R", | |
3493 | void_type_node, 1, pchar_type_node); | |
9915365e | 3494 | /* The runtime_error function does not return. */ |
3495 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3496 | ||
241ecdc7 | 3497 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3498 | get_identifier (PREFIX("set_args")), | |
3499 | void_type_node, 2, integer_type_node, | |
3500 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3501 | |
241ecdc7 | 3502 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3503 | get_identifier (PREFIX("set_fpe")), | |
3504 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3505 | |
d566c3e0 | 3506 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3507 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3508 | void_type_node, 1, pvoid_type_node); | |
3509 | ||
3510 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3511 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3512 | void_type_node, 1, pvoid_type_node); | |
3513 | ||
56c7c2d7 | 3514 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3515 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3516 | get_identifier (PREFIX("set_options")), "..R", | |
3517 | void_type_node, 2, integer_type_node, | |
3518 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3519 | |
241ecdc7 | 3520 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3521 | get_identifier (PREFIX("set_convert")), | |
3522 | void_type_node, 1, integer_type_node); | |
15774a8b | 3523 | |
241ecdc7 | 3524 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3525 | get_identifier (PREFIX("set_record_marker")), | |
3526 | void_type_node, 1, integer_type_node); | |
f23886ab | 3527 | |
241ecdc7 | 3528 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3529 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3530 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3531 | |
8ce86007 | 3532 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3533 | get_identifier (PREFIX("internal_pack")), ".r", |
3534 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3535 | |
8ce86007 | 3536 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3537 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3538 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3539 | ||
3540 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3541 | get_identifier (PREFIX("associated")), ".RR", | |
3542 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3543 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3544 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3545 | |
70b5944a | 3546 | /* Coarray library calls. */ |
4fe73152 | 3547 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3548 | { |
3549 | tree pint_type, pppchar_type; | |
3550 | ||
3551 | pint_type = build_pointer_type (integer_type_node); | |
3552 | pppchar_type | |
3553 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3554 | ||
3555 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
65cbb21d | 3556 | get_identifier (PREFIX("caf_init")), void_type_node, |
3557 | 2, pint_type, pppchar_type); | |
70b5944a | 3558 | |
3559 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3560 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3561 | ||
d44f2f7c | 3562 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
65cbb21d | 3563 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3564 | 1, integer_type_node); | |
d44f2f7c | 3565 | |
3566 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
65cbb21d | 3567 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3568 | 2, integer_type_node, integer_type_node); | |
d44f2f7c | 3569 | |
a961ca30 | 3570 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
eee0cf09 | 3571 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3572 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
3573 | pint_type, pchar_type_node, integer_type_node); | |
d0d776fb | 3574 | |
3575 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
eee0cf09 | 3576 | get_identifier (PREFIX("caf_deregister")), "WWWR", void_type_node, 4, |
65cbb21d | 3577 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); |
a961ca30 | 3578 | |
5f4a118e | 3579 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3580 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3581 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3582 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3583 | boolean_type_node, pint_type); |
5f4a118e | 3584 | |
3585 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3586 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRW", void_type_node, 10, |
3587 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3588 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3589 | boolean_type_node, pint_type); |
5f4a118e | 3590 | |
3591 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
eee0cf09 | 3592 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3593 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3594 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3595 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3596 | integer_type_node, boolean_type_node, integer_type_node); | |
3597 | ||
3598 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
3599 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRW", void_type_node, | |
3600 | 9, pvoid_type_node, integer_type_node, pvoid_type_node, pvoid_type_node, | |
3601 | integer_type_node, integer_type_node, boolean_type_node, | |
3602 | boolean_type_node, pint_type); | |
3603 | ||
3604 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
3605 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRW", void_type_node, | |
3606 | 9, pvoid_type_node, integer_type_node, pvoid_type_node, pvoid_type_node, | |
3607 | integer_type_node, integer_type_node, boolean_type_node, | |
3608 | boolean_type_node, pint_type); | |
3609 | ||
3610 | gfor_fndecl_caf_sendget_by_ref | |
3611 | = gfc_build_library_function_decl_with_spec ( | |
3612 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWW", | |
3613 | void_type_node, 11, pvoid_type_node, integer_type_node, | |
3614 | pvoid_type_node, pvoid_type_node, integer_type_node, | |
3615 | pvoid_type_node, integer_type_node, integer_type_node, | |
3616 | boolean_type_node, pint_type, pint_type); | |
5f4a118e | 3617 | |
70b5944a | 3618 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3619 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3620 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3621 | |
71cf3ae6 | 3622 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3623 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3624 | 3, pint_type, pchar_type_node, integer_type_node); | |
3625 | ||
70b5944a | 3626 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3627 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3628 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3629 | pchar_type_node, integer_type_node); |
70b5944a | 3630 | |
3631 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3632 | get_identifier (PREFIX("caf_error_stop")), | |
3633 | void_type_node, 1, gfc_int4_type_node); | |
3634 | /* CAF's ERROR STOP doesn't return. */ | |
3635 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3636 | ||
3637 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3638 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3639 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3640 | /* CAF's ERROR STOP doesn't return. */ | |
3641 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3642 | |
ba4d9b7e | 3643 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3644 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
3645 | void_type_node, 1, gfc_int4_type_node); | |
ba4d9b7e | 3646 | /* CAF's STOP doesn't return. */ |
3647 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3648 | ||
3649 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3650 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
3651 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
ba4d9b7e | 3652 | /* CAF's STOP doesn't return. */ |
3653 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3654 | ||
97b9ac34 | 3655 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3656 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3657 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3658 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3659 | |
3660 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3661 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3662 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3663 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3664 | |
3665 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3666 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3667 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3668 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
97b9ac34 | 3669 | integer_type_node, integer_type_node); |
3670 | ||
3671 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3672 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3673 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3674 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3675 | integer_type_node, integer_type_node); | |
3676 | ||
498b946e | 3677 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3678 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3679 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3680 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3681 | ||
3682 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3683 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3684 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
498b946e | 3685 | pint_type, pchar_type_node, integer_type_node); |
3686 | ||
bd47f0bc | 3687 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3688 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3689 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3690 | pint_type, pchar_type_node, integer_type_node); | |
3691 | ||
3692 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3693 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3694 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3695 | pint_type, pchar_type_node, integer_type_node); | |
3696 | ||
3697 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3698 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3699 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3700 | pint_type, pint_type); | |
3701 | ||
52306a18 | 3702 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3703 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3704 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3705 | pint_type, pchar_type_node, integer_type_node); | |
3706 | ||
79ed4a8e | 3707 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3708 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3709 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3710 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3711 | ||
3712 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3713 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3714 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3715 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3716 | ||
e39efcef | 3717 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3718 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3719 | void_type_node, 8, pvoid_type_node, | |
65cbb21d | 3720 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
e39efcef | 3721 | NULL_TREE)), |
3722 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3723 | integer_type_node, integer_type_node); | |
3724 | ||
79ed4a8e | 3725 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3726 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3727 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3728 | pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3729 | } |
3730 | ||
4ee9c684 | 3731 | gfc_build_intrinsic_function_decls (); |
3732 | gfc_build_intrinsic_lib_fndecls (); | |
3733 | gfc_build_io_library_fndecls (); | |
3734 | } | |
3735 | ||
3736 | ||
231e961a | 3737 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3738 | |
c5faa799 | 3739 | static void |
3740 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3741 | gfc_wrapped_block *block) | |
4ee9c684 | 3742 | { |
c5faa799 | 3743 | stmtblock_t init; |
4ee9c684 | 3744 | |
b9c7fce7 | 3745 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3746 | |
c5faa799 | 3747 | gfc_start_block (&init); |
4ee9c684 | 3748 | |
3749 | /* Evaluate the string length expression. */ | |
c5faa799 | 3750 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3751 | |
c5faa799 | 3752 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3753 | |
c5faa799 | 3754 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3755 | } |
3756 | ||
3757 | ||
3758 | /* Allocate and cleanup an automatic character variable. */ | |
3759 | ||
c5faa799 | 3760 | static void |
3761 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3762 | { |
c5faa799 | 3763 | stmtblock_t init; |
4ee9c684 | 3764 | tree decl; |
4ee9c684 | 3765 | tree tmp; |
3766 | ||
22d678e8 | 3767 | gcc_assert (sym->backend_decl); |
eeebe20b | 3768 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3769 | |
3714c8b6 | 3770 | gfc_init_block (&init); |
4ee9c684 | 3771 | |
3772 | /* Evaluate the string length expression. */ | |
c5faa799 | 3773 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3774 | |
c5faa799 | 3775 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3776 | |
4ee9c684 | 3777 | decl = sym->backend_decl; |
3778 | ||
afcf285e | 3779 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3780 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3781 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3782 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3783 | |
c5faa799 | 3784 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3785 | } |
3786 | ||
c8f1568f | 3787 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3788 | ||
c5faa799 | 3789 | static void |
3790 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3791 | { |
c5faa799 | 3792 | stmtblock_t init; |
c8f1568f | 3793 | |
3794 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3795 | gfc_start_block (&init); |
c8f1568f | 3796 | |
3797 | /* Set the initial value to length. See the comments in | |
3798 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3799 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3800 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3801 | |
c5faa799 | 3802 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3803 | } |
3804 | ||
d4163395 | 3805 | static void |
3806 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3807 | { | |
3808 | tree t = *tp, var, val; | |
3809 | ||
3810 | if (t == NULL || t == error_mark_node) | |
3811 | return; | |
3812 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3813 | return; | |
3814 | ||
3815 | if (TREE_CODE (t) == SAVE_EXPR) | |
3816 | { | |
3817 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3818 | { | |
3819 | *tp = TREE_OPERAND (t, 0); | |
3820 | return; | |
3821 | } | |
3822 | val = TREE_OPERAND (t, 0); | |
3823 | } | |
3824 | else | |
3825 | val = t; | |
3826 | ||
3827 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3828 | gfc_add_decl_to_function (var); | |
1ec957b0 | 3829 | gfc_add_modify (body, var, unshare_expr (val)); |
d4163395 | 3830 | if (TREE_CODE (t) == SAVE_EXPR) |
3831 | TREE_OPERAND (t, 0) = var; | |
3832 | *tp = var; | |
3833 | } | |
3834 | ||
3835 | static void | |
3836 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3837 | { | |
3838 | tree t; | |
3839 | ||
3840 | if (type == NULL || type == error_mark_node) | |
3841 | return; | |
3842 | ||
3843 | type = TYPE_MAIN_VARIANT (type); | |
3844 | ||
3845 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3846 | { | |
3847 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3848 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3849 | ||
3850 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3851 | { | |
3852 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3853 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3854 | } | |
3855 | } | |
3856 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3857 | { | |
3858 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3859 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3860 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3861 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3862 | ||
3863 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3864 | { | |
3865 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3866 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3867 | } | |
3868 | } | |
3869 | } | |
3870 | ||
3871 | /* Make sure all type sizes and array domains are either constant, | |
3872 | or variable or parameter decls. This is a simplified variant | |
3873 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3874 | variables in the expressions have been gimplified yet. | |
3875 | As type sizes and domains for various variable length arrays | |
3876 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3877 | time, without this routine gimplify_type_sizes in the middle-end | |
3878 | could result in the type sizes being gimplified earlier than where | |
3879 | those variables are initialized. */ | |
3880 | ||
3881 | void | |
3882 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3883 | { | |
3884 | tree type = TREE_TYPE (sym->backend_decl); | |
3885 | ||
3886 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3887 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3888 | { | |
3889 | if (! current_fake_result_decl) | |
3890 | return; | |
3891 | ||
3892 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3893 | } | |
3894 | ||
3895 | while (POINTER_TYPE_P (type)) | |
3896 | type = TREE_TYPE (type); | |
3897 | ||
3898 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3899 | { | |
3900 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3901 | ||
3902 | while (POINTER_TYPE_P (etype)) | |
3903 | etype = TREE_TYPE (etype); | |
3904 | ||
3905 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3906 | } | |
3907 | ||
3908 | gfc_trans_vla_type_sizes_1 (type, body); | |
3909 | } | |
3910 | ||
4ee9c684 | 3911 | |
f0d4969f | 3912 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3913 | and using trans_assignment to do the work. Set dealloc to false |
3914 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3915 | void |
3916 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3917 | { |
f0d4969f | 3918 | gfc_expr *e; |
87114d2e | 3919 | tree tmp; |
3920 | tree present; | |
3921 | ||
c5faa799 | 3922 | gcc_assert (block); |
3923 | ||
f0d4969f | 3924 | gcc_assert (!sym->attr.allocatable); |
3925 | gfc_set_sym_referenced (sym); | |
3926 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3927 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3928 | if (sym->attr.dummy && (sym->attr.optional |
3929 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3930 | { |
f0d4969f | 3931 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3932 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3933 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3934 | } |
c5faa799 | 3935 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3936 | gfc_free_expr (e); |
87114d2e | 3937 | } |
3938 | ||
3939 | ||
8714fc76 | 3940 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3941 | them their default initializer, if they do not have allocatable | |
293d72e0 | 3942 | components, they have their allocatable components deallocated. */ |
8714fc76 | 3943 | |
c5faa799 | 3944 | static void |
3945 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3946 | { |
c5faa799 | 3947 | stmtblock_t init; |
f0d4969f | 3948 | gfc_formal_arglist *f; |
8714fc76 | 3949 | tree tmp; |
5907c3ea | 3950 | tree present; |
f0d4969f | 3951 | |
c5faa799 | 3952 | gfc_init_block (&init); |
6777213b | 3953 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3954 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3955 | && !f->sym->attr.pointer |
3956 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3957 | { |
942ba353 | 3958 | tmp = NULL_TREE; |
3959 | ||
3960 | /* Note: Allocatables are excluded as they are already handled | |
3961 | by the caller. */ | |
3962 | if (!f->sym->attr.allocatable | |
3963 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3964 | { |
942ba353 | 3965 | stmtblock_t block; |
3966 | gfc_expr *e; | |
3967 | ||
3968 | gfc_init_block (&block); | |
3969 | f->sym->attr.referenced = 1; | |
3970 | e = gfc_lval_expr_from_sym (f->sym); | |
3971 | gfc_add_finalizer_call (&block, e); | |
3972 | gfc_free_expr (e); | |
3973 | tmp = gfc_finish_block (&block); | |
3974 | } | |
5907c3ea | 3975 | |
942ba353 | 3976 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
3977 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
3978 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
3979 | f->sym->backend_decl, | |
3980 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3981 | |
942ba353 | 3982 | if (tmp != NULL_TREE && (f->sym->attr.optional |
3983 | || f->sym->ns->proc_name->attr.entry_master)) | |
3984 | { | |
3985 | present = gfc_conv_expr_present (f->sym); | |
3986 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3987 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 3988 | } |
942ba353 | 3989 | |
3990 | if (tmp != NULL_TREE) | |
3991 | gfc_add_expr_to_block (&init, tmp); | |
3992 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 3993 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3994 | } |
c56d57d6 | 3995 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3996 | && f->sym->ts.type == BT_CLASS | |
3997 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 3998 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 3999 | { |
942ba353 | 4000 | stmtblock_t block; |
4001 | gfc_expr *e; | |
4002 | ||
4003 | gfc_init_block (&block); | |
4004 | f->sym->attr.referenced = 1; | |
4005 | e = gfc_lval_expr_from_sym (f->sym); | |
4006 | gfc_add_finalizer_call (&block, e); | |
4007 | gfc_free_expr (e); | |
4008 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 4009 | |
4010 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4011 | { | |
4012 | present = gfc_conv_expr_present (f->sym); | |
4013 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4014 | present, tmp, | |
4015 | build_empty_stmt (input_location)); | |
4016 | } | |
4017 | ||
4018 | gfc_add_expr_to_block (&init, tmp); | |
4019 | } | |
f0d4969f | 4020 | |
c5faa799 | 4021 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 4022 | } |
4023 | ||
87114d2e | 4024 | |
b345a09f | 4025 | /* Helper function to manage deferred string lengths. */ |
4026 | ||
4027 | static tree | |
4028 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4029 | locus *loc) | |
4030 | { | |
4031 | tree tmp; | |
4032 | ||
4033 | /* Character length passed by reference. */ | |
4034 | tmp = sym->ts.u.cl->passed_length; | |
4035 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4036 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4037 | ||
4038 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4039 | /* Zero the string length when entering the scope. */ | |
4040 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4041 | build_int_cst (gfc_charlen_type_node, 0)); | |
4042 | else | |
4043 | { | |
4044 | tree tmp2; | |
4045 | ||
4046 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4047 | gfc_charlen_type_node, | |
4048 | sym->ts.u.cl->backend_decl, tmp); | |
4049 | if (sym->attr.optional) | |
4050 | { | |
4051 | tree present = gfc_conv_expr_present (sym); | |
4052 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4053 | void_type_node, present, tmp2, | |
4054 | build_empty_stmt (input_location)); | |
4055 | } | |
4056 | gfc_add_expr_to_block (init, tmp2); | |
4057 | } | |
4058 | ||
4059 | gfc_restore_backend_locus (loc); | |
4060 | ||
4061 | /* Pass the final character length back. */ | |
4062 | if (sym->attr.intent != INTENT_IN) | |
4063 | { | |
4064 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4065 | gfc_charlen_type_node, tmp, | |
4066 | sym->ts.u.cl->backend_decl); | |
4067 | if (sym->attr.optional) | |
4068 | { | |
4069 | tree present = gfc_conv_expr_present (sym); | |
4070 | tmp = build3_loc (input_location, COND_EXPR, | |
4071 | void_type_node, present, tmp, | |
4072 | build_empty_stmt (input_location)); | |
4073 | } | |
4074 | } | |
4075 | else | |
4076 | tmp = NULL_TREE; | |
4077 | ||
4078 | return tmp; | |
4079 | } | |
4080 | ||
4ee9c684 | 4081 | /* Generate function entry and exit code, and add it to the function body. |
4082 | This includes: | |
f888a3fb | 4083 | Allocation and initialization of array variables. |
4ee9c684 | 4084 | Allocation of character string variables. |
c8f1568f | 4085 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 4086 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 4087 | Initialization of ASSOCIATE names. |
0a96a7cc | 4088 | Automatic deallocation. */ |
4ee9c684 | 4089 | |
89ac8ba1 | 4090 | void |
4091 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 4092 | { |
4093 | locus loc; | |
4094 | gfc_symbol *sym; | |
d4163395 | 4095 | gfc_formal_arglist *f; |
c5faa799 | 4096 | stmtblock_t tmpblock; |
25dd7350 | 4097 | bool seen_trans_deferred_array = false; |
617125a6 | 4098 | tree tmp = NULL; |
4099 | gfc_expr *e; | |
4100 | gfc_se se; | |
4101 | stmtblock_t init; | |
4ee9c684 | 4102 | |
4103 | /* Deal with implicit return variables. Explicit return variables will | |
4104 | already have been added. */ | |
4105 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4106 | { | |
4107 | if (!current_fake_result_decl) | |
4108 | { | |
c6871095 | 4109 | gfc_entry_list *el = NULL; |
4110 | if (proc_sym->attr.entry_master) | |
4111 | { | |
4112 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4113 | if (el->sym != el->sym->result) | |
4114 | break; | |
4115 | } | |
fa7b6574 | 4116 | /* TODO: move to the appropriate place in resolve.c. */ |
4117 | if (warn_return_type && el == NULL) | |
4166acc7 | 4118 | gfc_warning (OPT_Wreturn_type, |
4119 | "Return value of function %qs at %L not set", | |
fa7b6574 | 4120 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 4121 | } |
c6871095 | 4122 | else if (proc_sym->as) |
4ee9c684 | 4123 | { |
d4163395 | 4124 | tree result = TREE_VALUE (current_fake_result_decl); |
9da84a54 | 4125 | gfc_save_backend_locus (&loc); |
4126 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4127 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 4128 | |
4129 | /* An automatic character length, pointer array result. */ | |
4130 | if (proc_sym->ts.type == BT_CHARACTER | |
fe732a9b | 4131 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
b345a09f | 4132 | { |
4133 | tmp = NULL; | |
4134 | if (proc_sym->ts.deferred) | |
4135 | { | |
b345a09f | 4136 | gfc_start_block (&init); |
4137 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4138 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4139 | } | |
4140 | else | |
4141 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4142 | } | |
4ee9c684 | 4143 | } |
4144 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4145 | { | |
617125a6 | 4146 | if (proc_sym->ts.deferred) |
4147 | { | |
4148 | tmp = NULL; | |
da2c4122 | 4149 | gfc_save_backend_locus (&loc); |
4150 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 4151 | gfc_start_block (&init); |
4152 | /* Zero the string length on entry. */ | |
4153 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4154 | build_int_cst (gfc_charlen_type_node, 0)); | |
4155 | /* Null the pointer. */ | |
4156 | e = gfc_lval_expr_from_sym (proc_sym); | |
4157 | gfc_init_se (&se, NULL); | |
4158 | se.want_pointer = 1; | |
4159 | gfc_conv_expr (&se, e); | |
4160 | gfc_free_expr (e); | |
4161 | tmp = se.expr; | |
4162 | gfc_add_modify (&init, tmp, | |
4163 | fold_convert (TREE_TYPE (se.expr), | |
4164 | null_pointer_node)); | |
da2c4122 | 4165 | gfc_restore_backend_locus (&loc); |
617125a6 | 4166 | |
4167 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 4168 | tmp = proc_sym->ts.u.cl->backend_decl; |
b345a09f | 4169 | if (TREE_CODE (tmp) != INDIRECT_REF |
4170 | && proc_sym->ts.u.cl->passed_length) | |
ddcfeaf1 | 4171 | { |
a4731200 | 4172 | tmp = proc_sym->ts.u.cl->passed_length; |
4173 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4174 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4175 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4176 | gfc_charlen_type_node, tmp, | |
4177 | proc_sym->ts.u.cl->backend_decl); | |
ddcfeaf1 | 4178 | } |
4179 | else | |
4180 | tmp = NULL_TREE; | |
4181 | ||
617125a6 | 4182 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4183 | } | |
fe732a9b | 4184 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
89ac8ba1 | 4185 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4186 | } |
4187 | else | |
829d7a08 | 4188 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4189 | } |
4190 | ||
87114d2e | 4191 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4192 | should be done here so that the offsets and lbounds of arrays | |
4193 | are available. */ | |
da2c4122 | 4194 | gfc_save_backend_locus (&loc); |
4195 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4196 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4197 | gfc_restore_backend_locus (&loc); |
87114d2e | 4198 | |
4ee9c684 | 4199 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4200 | { | |
6b3ceb4e | 4201 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4202 | && (sym->ts.u.derived->attr.alloc_comp | |
4203 | || gfc_is_finalizable (sym->ts.u.derived, | |
4204 | NULL)); | |
8f3f9eab | 4205 | if (sym->assoc) |
3c82e013 | 4206 | continue; |
4207 | ||
a56d63bc | 4208 | if (sym->attr.subref_array_pointer |
4209 | && GFC_DECL_SPAN (sym->backend_decl) | |
4210 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
4211 | { | |
4212 | gfc_init_block (&tmpblock); | |
4213 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
4214 | build_int_cst (gfc_array_index_type, 0)); | |
4215 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4216 | NULL_TREE); | |
4217 | } | |
4218 | ||
85ae3cab | 4219 | if (sym->ts.type == BT_CLASS |
eb106faf | 4220 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4221 | && CLASS_DATA (sym)->attr.allocatable) |
4222 | { | |
4223 | tree vptr; | |
4224 | ||
4225 | if (UNLIMITED_POLY (sym)) | |
4226 | vptr = null_pointer_node; | |
4227 | else | |
4228 | { | |
4229 | gfc_symbol *vsym; | |
4230 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4231 | vptr = gfc_get_symbol_decl (vsym); | |
4232 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4233 | } | |
4234 | ||
4235 | if (CLASS_DATA (sym)->attr.dimension | |
4236 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4237 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4238 | { |
4239 | tmp = gfc_class_data_get (sym->backend_decl); | |
4240 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4241 | } | |
4242 | else | |
4243 | tmp = null_pointer_node; | |
4244 | ||
4245 | DECL_INITIAL (sym->backend_decl) | |
4246 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4247 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4248 | } | |
b345a09f | 4249 | else if ((sym->attr.dimension || sym->attr.codimension |
4250 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
4ee9c684 | 4251 | { |
c6793847 | 4252 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4253 | symbol_attribute *array_attr; | |
4254 | gfc_array_spec *as; | |
b345a09f | 4255 | array_type type_of_array; |
c6793847 | 4256 | |
4257 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4258 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4259 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
b345a09f | 4260 | type_of_array = as->type; |
4261 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4262 | type_of_array = AS_EXPLICIT; | |
4263 | switch (type_of_array) | |
4ee9c684 | 4264 | { |
4265 | case AS_EXPLICIT: | |
4266 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4267 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4268 | /* Allocatable and pointer arrays need to processed |
4269 | explicitly. */ | |
4270 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4271 | || (sym->ts.type == BT_CLASS | |
4272 | && CLASS_DATA (sym)->attr.class_pointer) | |
4273 | || array_attr->allocatable) | |
4ee9c684 | 4274 | { |
4275 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4276 | { |
4277 | gfc_save_backend_locus (&loc); | |
4278 | gfc_set_backend_locus (&sym->declared_at); | |
4279 | gfc_trans_static_array_pointer (sym); | |
4280 | gfc_restore_backend_locus (&loc); | |
4281 | } | |
4ee9c684 | 4282 | else |
25dd7350 | 4283 | { |
4284 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4285 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4286 | } |
4ee9c684 | 4287 | } |
c6793847 | 4288 | else if (sym->attr.codimension |
4289 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4290 | { |
4291 | gfc_init_block (&tmpblock); | |
4292 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4293 | &tmpblock, sym); | |
4294 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4295 | NULL_TREE); | |
4296 | continue; | |
4297 | } | |
197423f5 | 4298 | else |
4ee9c684 | 4299 | { |
da2c4122 | 4300 | gfc_save_backend_locus (&loc); |
4301 | gfc_set_backend_locus (&sym->declared_at); | |
4302 | ||
6b3ceb4e | 4303 | if (alloc_comp_or_fini) |
25dd7350 | 4304 | { |
4305 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4306 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4307 | } |
f0d4969f | 4308 | else if (sym->ts.type == BT_DERIVED |
4309 | && sym->value | |
4310 | && !sym->attr.data | |
4311 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4312 | { |
4313 | gfc_start_block (&tmpblock); | |
4314 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4315 | gfc_add_init_cleanup (block, |
c5faa799 | 4316 | gfc_finish_block (&tmpblock), |
4317 | NULL_TREE); | |
4318 | } | |
25dd7350 | 4319 | |
c5faa799 | 4320 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4321 | sym, block); |
4671339c | 4322 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4323 | } |
4324 | break; | |
4325 | ||
4326 | case AS_ASSUMED_SIZE: | |
4327 | /* Must be a dummy parameter. */ | |
c6793847 | 4328 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4329 | |
4330 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4331 | if (sym->attr.dummy) |
89ac8ba1 | 4332 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4333 | break; |
4ee9c684 | 4334 | |
4335 | case AS_ASSUMED_SHAPE: | |
4336 | /* Must be a dummy parameter. */ | |
22d678e8 | 4337 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4338 | |
89ac8ba1 | 4339 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4340 | break; |
4341 | ||
f00f6dd6 | 4342 | case AS_ASSUMED_RANK: |
4ee9c684 | 4343 | case AS_DEFERRED: |
25dd7350 | 4344 | seen_trans_deferred_array = true; |
89ac8ba1 | 4345 | gfc_trans_deferred_array (sym, block); |
b345a09f | 4346 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4347 | && sym->attr.result) | |
4348 | { | |
4349 | gfc_start_block (&init); | |
4350 | gfc_save_backend_locus (&loc); | |
4351 | gfc_set_backend_locus (&sym->declared_at); | |
4352 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4353 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4354 | } | |
4ee9c684 | 4355 | break; |
4356 | ||
4357 | default: | |
22d678e8 | 4358 | gcc_unreachable (); |
4ee9c684 | 4359 | } |
6b3ceb4e | 4360 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4361 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4362 | } |
fd23cc08 | 4363 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4364 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4365 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4366 | continue; |
617125a6 | 4367 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4368 | && (sym->attr.allocatable |
b345a09f | 4369 | || (sym->attr.pointer && sym->attr.result) |
456dd7d6 | 4370 | || (sym->ts.type == BT_CLASS |
4371 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4372 | { |
eb106faf | 4373 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4374 | { |
d0d776fb | 4375 | tree descriptor = NULL_TREE; |
4376 | ||
da2c4122 | 4377 | gfc_save_backend_locus (&loc); |
4378 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4379 | gfc_start_block (&init); |
617125a6 | 4380 | |
b345a09f | 4381 | if (!sym->attr.pointer) |
617125a6 | 4382 | { |
b345a09f | 4383 | /* Nullify and automatic deallocation of allocatable |
4384 | scalars. */ | |
4385 | e = gfc_lval_expr_from_sym (sym); | |
4386 | if (sym->ts.type == BT_CLASS) | |
4387 | gfc_add_data_component (e); | |
4388 | ||
4389 | gfc_init_se (&se, NULL); | |
4390 | if (sym->ts.type != BT_CLASS | |
4391 | || sym->ts.u.derived->attr.dimension | |
4392 | || sym->ts.u.derived->attr.codimension) | |
883d6776 | 4393 | { |
b345a09f | 4394 | se.want_pointer = 1; |
4395 | gfc_conv_expr (&se, e); | |
4396 | } | |
4397 | else if (sym->ts.type == BT_CLASS | |
4398 | && !CLASS_DATA (sym)->attr.dimension | |
4399 | && !CLASS_DATA (sym)->attr.codimension) | |
4400 | { | |
4401 | se.want_pointer = 1; | |
4402 | gfc_conv_expr (&se, e); | |
883d6776 | 4403 | } |
617125a6 | 4404 | else |
883d6776 | 4405 | { |
b345a09f | 4406 | se.descriptor_only = 1; |
4407 | gfc_conv_expr (&se, e); | |
4408 | descriptor = se.expr; | |
4409 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4410 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
883d6776 | 4411 | } |
b345a09f | 4412 | gfc_free_expr (e); |
617125a6 | 4413 | |
b345a09f | 4414 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
883d6776 | 4415 | { |
b345a09f | 4416 | /* Nullify when entering the scope. */ |
883d6776 | 4417 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
b345a09f | 4418 | TREE_TYPE (se.expr), se.expr, |
4419 | fold_convert (TREE_TYPE (se.expr), | |
4420 | null_pointer_node)); | |
883d6776 | 4421 | if (sym->attr.optional) |
4422 | { | |
4423 | tree present = gfc_conv_expr_present (sym); | |
4424 | tmp = build3_loc (input_location, COND_EXPR, | |
4425 | void_type_node, present, tmp, | |
4426 | build_empty_stmt (input_location)); | |
4427 | } | |
b345a09f | 4428 | gfc_add_expr_to_block (&init, tmp); |
883d6776 | 4429 | } |
617125a6 | 4430 | } |
b345a09f | 4431 | |
4432 | if ((sym->attr.dummy || sym->attr.result) | |
4433 | && sym->ts.type == BT_CHARACTER | |
4434 | && sym->ts.deferred | |
4435 | && sym->ts.u.cl->passed_length) | |
4436 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
da2c4122 | 4437 | else |
4438 | gfc_restore_backend_locus (&loc); | |
908e9973 | 4439 | |
4440 | /* Deallocate when leaving the scope. Nullifying is not | |
4441 | needed. */ | |
b345a09f | 4442 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
afb69dbf | 4443 | && !sym->ns->proc_name->attr.is_main_program) |
d0d776fb | 4444 | { |
4445 | if (sym->ts.type == BT_CLASS | |
4446 | && CLASS_DATA (sym)->attr.codimension) | |
4447 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4448 | NULL_TREE, NULL_TREE, | |
4449 | NULL_TREE, true, NULL, | |
4450 | true); | |
4451 | else | |
c23adf93 | 4452 | { |
4453 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
4454 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, | |
4455 | true, expr, sym->ts); | |
4456 | gfc_free_expr (expr); | |
4457 | } | |
d0d776fb | 4458 | } |
b345a09f | 4459 | |
afc44c79 | 4460 | if (sym->ts.type == BT_CLASS) |
4461 | { | |
4462 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4463 | gfc_symbol *vtab; |
afc44c79 | 4464 | tree rhs; |
da2c4122 | 4465 | |
4466 | gfc_save_backend_locus (&loc); | |
4467 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4468 | e = gfc_lval_expr_from_sym (sym); |
4469 | gfc_add_vptr_component (e); | |
4470 | gfc_init_se (&se, NULL); | |
4471 | se.want_pointer = 1; | |
4472 | gfc_conv_expr (&se, e); | |
4473 | gfc_free_expr (e); | |
a90fe829 | 4474 | if (UNLIMITED_POLY (sym)) |
4475 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4476 | else | |
4477 | { | |
4478 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4479 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4480 | gfc_get_symbol_decl (vtab)); | |
4481 | } | |
afc44c79 | 4482 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4483 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4484 | } |
4485 | ||
89ac8ba1 | 4486 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4487 | } |
0a96a7cc | 4488 | } |
617125a6 | 4489 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4490 | { | |
4491 | tree tmp = NULL; | |
4492 | stmtblock_t init; | |
4493 | ||
4494 | /* If we get to here, all that should be left are pointers. */ | |
4495 | gcc_assert (sym->attr.pointer); | |
4496 | ||
4497 | if (sym->attr.dummy) | |
4498 | { | |
4499 | gfc_start_block (&init); | |
b345a09f | 4500 | gfc_save_backend_locus (&loc); |
4501 | gfc_set_backend_locus (&sym->declared_at); | |
4502 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
617125a6 | 4503 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4504 | } | |
4505 | } | |
3e715c81 | 4506 | else if (sym->ts.deferred) |
4507 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4508 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4509 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4510 | else if (sym->ts.type == BT_CHARACTER) |
4511 | { | |
4671339c | 4512 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4513 | gfc_set_backend_locus (&sym->declared_at); |
4514 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4515 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4516 | else |
89ac8ba1 | 4517 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4518 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4519 | } |
c8f1568f | 4520 | else if (sym->attr.assign) |
4521 | { | |
4671339c | 4522 | gfc_save_backend_locus (&loc); |
c8f1568f | 4523 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4524 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4525 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4526 | } |
f0d4969f | 4527 | else if (sym->ts.type == BT_DERIVED |
4528 | && sym->value | |
4529 | && !sym->attr.data | |
4530 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4531 | { |
4532 | gfc_start_block (&tmpblock); | |
4533 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4534 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4535 | NULL_TREE); |
4536 | } | |
a90fe829 | 4537 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 4538 | gcc_unreachable (); |
4ee9c684 | 4539 | } |
4540 | ||
c5faa799 | 4541 | gfc_init_block (&tmpblock); |
d4163395 | 4542 | |
6777213b | 4543 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4544 | { |
4545 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4546 | { | |
eeebe20b | 4547 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4548 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4549 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4550 | } |
1e853e89 | 4551 | } |
d4163395 | 4552 | |
4553 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4554 | && current_fake_result_decl != NULL) | |
4555 | { | |
eeebe20b | 4556 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4557 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4558 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4559 | } |
4560 | ||
89ac8ba1 | 4561 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4562 | } |
4563 | ||
b345a09f | 4564 | |
b594087e | 4565 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4566 | { |
2ef51f0e | 4567 | typedef const char *compare_type; |
df4d540f | 4568 | |
2ef51f0e | 4569 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4570 | static bool | |
4571 | equal (module_htab_entry *a, const char *b) | |
4572 | { | |
4573 | return !strcmp (a->name, b); | |
4574 | } | |
4575 | }; | |
4576 | ||
4577 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4578 | |
4579 | /* Hash and equality functions for module_htab's decls. */ | |
4580 | ||
2ef51f0e | 4581 | hashval_t |
4582 | module_decl_hasher::hash (tree t) | |
df4d540f | 4583 | { |
df4d540f | 4584 | const_tree n = DECL_NAME (t); |
4585 | if (n == NULL_TREE) | |
4586 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4587 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4588 | } |
4589 | ||
2ef51f0e | 4590 | bool |
4591 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4592 | { |
df4d540f | 4593 | const_tree n1 = DECL_NAME (t1); |
4594 | if (n1 == NULL_TREE) | |
4595 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4596 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4597 | } |
4598 | ||
4599 | struct module_htab_entry * | |
4600 | gfc_find_module (const char *name) | |
4601 | { | |
df4d540f | 4602 | if (! module_htab) |
2ef51f0e | 4603 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4604 | |
2ef51f0e | 4605 | module_htab_entry **slot |
4606 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4607 | if (*slot == NULL) |
4608 | { | |
25a27413 | 4609 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4610 | |
4611 | entry->name = gfc_get_string (name); | |
2ef51f0e | 4612 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4613 | *slot = entry; | |
df4d540f | 4614 | } |
2ef51f0e | 4615 | return *slot; |
df4d540f | 4616 | } |
4617 | ||
4618 | void | |
4619 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4620 | { | |
df4d540f | 4621 | const char *name; |
4622 | ||
4623 | if (DECL_NAME (decl)) | |
4624 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4625 | else | |
4626 | { | |
4627 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4628 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4629 | } | |
2ef51f0e | 4630 | tree *slot |
4631 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4632 | INSERT); | |
df4d540f | 4633 | if (*slot == NULL) |
2ef51f0e | 4634 | *slot = decl; |
df4d540f | 4635 | } |
4636 | ||
c40a5c1b | 4637 | |
4638 | /* Generate debugging symbols for namelists. This function must come after | |
4639 | generate_local_decl to ensure that the variables in the namelist are | |
4640 | already declared. */ | |
4641 | ||
4642 | static tree | |
4643 | generate_namelist_decl (gfc_symbol * sym) | |
4644 | { | |
4645 | gfc_namelist *nml; | |
4646 | tree decl; | |
4647 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4648 | ||
4649 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4650 | for (nml = sym->namelist; nml; nml = nml->next) | |
4651 | { | |
4652 | if (nml->sym->backend_decl == NULL_TREE) | |
4653 | { | |
4654 | nml->sym->attr.referenced = 1; | |
4655 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4656 | } | |
0a32260c | 4657 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4658 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4659 | } | |
4660 | ||
4661 | decl = make_node (NAMELIST_DECL); | |
4662 | TREE_TYPE (decl) = void_type_node; | |
4663 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4664 | DECL_NAME (decl) = get_identifier (sym->name); | |
4665 | return decl; | |
4666 | } | |
4667 | ||
4668 | ||
4ee9c684 | 4669 | /* Output an initialized decl for a module variable. */ |
4670 | ||
4671 | static void | |
4672 | gfc_create_module_variable (gfc_symbol * sym) | |
4673 | { | |
4674 | tree decl; | |
4ee9c684 | 4675 | |
d77f260f | 4676 | /* Module functions with alternate entries are dealt with later and |
4677 | would get caught by the next condition. */ | |
4678 | if (sym->attr.entry) | |
4679 | return; | |
4680 | ||
c5d33754 | 4681 | /* Make sure we convert the types of the derived types from iso_c_binding |
4682 | into (void *). */ | |
4683 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4684 | && sym->ts.type == BT_DERIVED) | |
4685 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4686 | ||
d7cd448a | 4687 | if (gfc_fl_struct (sym->attr.flavor) |
df4d540f | 4688 | && sym->backend_decl |
4689 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4690 | { | |
4691 | decl = sym->backend_decl; | |
4692 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4693 | |
fe9d2f5a | 4694 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 4695 | { |
4696 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4697 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4698 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4699 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4700 | == sym->ns->proc_name->backend_decl); | |
4701 | } | |
df4d540f | 4702 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4703 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4704 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4705 | } | |
4706 | ||
cf269acc | 4707 | /* Only output variables, procedure pointers and array valued, |
4708 | or derived type, parameters. */ | |
4ee9c684 | 4709 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4710 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4711 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4712 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4713 | return; |
4714 | ||
df4d540f | 4715 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4716 | { | |
4717 | decl = sym->backend_decl; | |
16a40513 | 4718 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4719 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4720 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4721 | gfc_module_add_decl (cur_module, decl); | |
4722 | } | |
4723 | ||
d43a7f7f | 4724 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4725 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 4726 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4727 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4728 | return; |
4729 | ||
2b685f8e | 4730 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4731 | if (sym->backend_decl |
df4d540f | 4732 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4733 | return; | |
2b685f8e | 4734 | |
23d075f4 | 4735 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4736 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4737 | sym->name); | |
4ee9c684 | 4738 | |
92983bfd | 4739 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4740 | && (sym->attr.access == ACCESS_UNKNOWN | |
4741 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4742 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4743 | && flag_module_private)))) |
92983bfd | 4744 | sym->attr.access = ACCESS_PRIVATE; |
4745 | ||
4746 | if (warn_unused_variable && !sym->attr.referenced | |
4747 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4748 | gfc_warning (OPT_Wunused_value, |
4749 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4750 | sym->name, &sym->declared_at); |
4751 | ||
4ee9c684 | 4752 | /* We always want module variables to be created. */ |
4753 | sym->attr.referenced = 1; | |
4754 | /* Create the decl. */ | |
4755 | decl = gfc_get_symbol_decl (sym); | |
4756 | ||
4ee9c684 | 4757 | /* Create the variable. */ |
4758 | pushdecl (decl); | |
df4d540f | 4759 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4760 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4761 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4762 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4763 | |
4764 | /* Also add length of strings. */ | |
4765 | if (sym->ts.type == BT_CHARACTER) | |
4766 | { | |
4767 | tree length; | |
4768 | ||
eeebe20b | 4769 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4770 | gcc_assert (length || sym->attr.proc_pointer); |
4771 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4772 | { |
4773 | pushdecl (length); | |
b2c4af5e | 4774 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4775 | } |
4776 | } | |
a961ca30 | 4777 | |
4778 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4779 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4780 | has_coarray_vars = true; | |
4ee9c684 | 4781 | } |
4782 | ||
51d9479b | 4783 | /* Emit debug information for USE statements. */ |
df4d540f | 4784 | |
4785 | static void | |
4786 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4787 | { | |
4788 | gfc_use_list *use_stmt; | |
4789 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4790 | { | |
4791 | struct module_htab_entry *entry | |
4792 | = gfc_find_module (use_stmt->module_name); | |
4793 | gfc_use_rename *rent; | |
4794 | ||
4795 | if (entry->namespace_decl == NULL) | |
4796 | { | |
4797 | entry->namespace_decl | |
e60a6f7b | 4798 | = build_decl (input_location, |
4799 | NAMESPACE_DECL, | |
df4d540f | 4800 | get_identifier (use_stmt->module_name), |
4801 | void_type_node); | |
4802 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4803 | } | |
51d9479b | 4804 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4805 | if (!use_stmt->only_flag) |
4806 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4807 | NULL_TREE, | |
4808 | ns->proc_name->backend_decl, | |
4809 | false); | |
4810 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4811 | { | |
4812 | tree decl, local_name; | |
df4d540f | 4813 | |
4814 | if (rent->op != INTRINSIC_NONE) | |
4815 | continue; | |
4816 | ||
2ef51f0e | 4817 | hashval_t hash = htab_hash_string (rent->use_name); |
4818 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
4819 | INSERT); | |
df4d540f | 4820 | if (*slot == NULL) |
4821 | { | |
4822 | gfc_symtree *st; | |
4823 | ||
4824 | st = gfc_find_symtree (ns->sym_root, | |
4825 | rent->local_name[0] | |
4826 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4827 | |
4828 | /* The following can happen if a derived type is renamed. */ | |
4829 | if (!st) | |
4830 | { | |
4831 | char *name; | |
4832 | name = xstrdup (rent->local_name[0] | |
4833 | ? rent->local_name : rent->use_name); | |
4834 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4835 | st = gfc_find_symtree (ns->sym_root, name); | |
4836 | free (name); | |
4837 | gcc_assert (st); | |
4838 | } | |
857c96ba | 4839 | |
4840 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4841 | local symbol (see PR41062). */ | |
4842 | if (!st->n.sym->attr.use_assoc) | |
4843 | continue; | |
4844 | ||
51d9479b | 4845 | if (st->n.sym->backend_decl |
4846 | && DECL_P (st->n.sym->backend_decl) | |
4847 | && st->n.sym->module | |
4848 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4849 | { |
51d9479b | 4850 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
fe732a9b | 4851 | || !VAR_P (st->n.sym->backend_decl)); |
df4d540f | 4852 | decl = copy_node (st->n.sym->backend_decl); |
4853 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4854 | DECL_EXTERNAL (decl) = 1; | |
4855 | DECL_IGNORED_P (decl) = 0; | |
4856 | DECL_INITIAL (decl) = NULL_TREE; | |
4857 | } | |
c40a5c1b | 4858 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
4859 | && st->n.sym->attr.use_only | |
4860 | && st->n.sym->module | |
4861 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
4862 | == 0) | |
4863 | { | |
4864 | decl = generate_namelist_decl (st->n.sym); | |
4865 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4866 | DECL_EXTERNAL (decl) = 1; | |
4867 | DECL_IGNORED_P (decl) = 0; | |
4868 | DECL_INITIAL (decl) = NULL_TREE; | |
4869 | } | |
df4d540f | 4870 | else |
4871 | { | |
4872 | *slot = error_mark_node; | |
2ef51f0e | 4873 | entry->decls->clear_slot (slot); |
df4d540f | 4874 | continue; |
4875 | } | |
4876 | *slot = decl; | |
4877 | } | |
4878 | decl = (tree) *slot; | |
4879 | if (rent->local_name[0]) | |
4880 | local_name = get_identifier (rent->local_name); | |
4881 | else | |
4882 | local_name = NULL_TREE; | |
51d9479b | 4883 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4884 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4885 | ns->proc_name->backend_decl, | |
4886 | !use_stmt->only_flag); | |
4887 | } | |
4888 | } | |
4ee9c684 | 4889 | } |
4890 | ||
51d9479b | 4891 | |
2eb674c9 | 4892 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4893 | will handle. */ | |
4894 | ||
4895 | static bool | |
4896 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4897 | bool pointer) | |
4898 | { | |
4899 | gfc_constructor *c; | |
4900 | gfc_component *cm; | |
4901 | ||
4902 | if (pointer) | |
4903 | return true; | |
4904 | else if (array) | |
4905 | { | |
4906 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4907 | return true; | |
4908 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4909 | return check_constant_initializer (expr, ts, false, false); | |
4910 | else if (expr->expr_type != EXPR_ARRAY) | |
4911 | return false; | |
126387b5 | 4912 | for (c = gfc_constructor_first (expr->value.constructor); |
4913 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4914 | { |
4915 | if (c->iterator) | |
4916 | return false; | |
4917 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4918 | { | |
4919 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4920 | return false; | |
4921 | } | |
4922 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4923 | return false; | |
4924 | } | |
4925 | return true; | |
4926 | } | |
4927 | else switch (ts->type) | |
4928 | { | |
d7cd448a | 4929 | case_bt_struct: |
2eb674c9 | 4930 | if (expr->expr_type != EXPR_STRUCTURE) |
4931 | return false; | |
eeebe20b | 4932 | cm = expr->ts.u.derived->components; |
126387b5 | 4933 | for (c = gfc_constructor_first (expr->value.constructor); |
4934 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4935 | { |
4936 | if (!c->expr || cm->attr.allocatable) | |
4937 | continue; | |
4938 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4939 | cm->attr.dimension, | |
4940 | cm->attr.pointer)) | |
4941 | return false; | |
4942 | } | |
4943 | return true; | |
4944 | default: | |
4945 | return expr->expr_type == EXPR_CONSTANT; | |
4946 | } | |
4947 | } | |
4948 | ||
4949 | /* Emit debug info for parameters and unreferenced variables with | |
4950 | initializers. */ | |
4951 | ||
4952 | static void | |
4953 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4954 | { | |
4955 | tree decl; | |
4956 | ||
4957 | if (sym->attr.flavor != FL_PARAMETER | |
4958 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4959 | return; | |
4960 | ||
4961 | if (sym->backend_decl != NULL | |
4962 | || sym->value == NULL | |
4963 | || sym->attr.use_assoc | |
4964 | || sym->attr.dummy | |
4965 | || sym->attr.result | |
4966 | || sym->attr.function | |
4967 | || sym->attr.intrinsic | |
4968 | || sym->attr.pointer | |
4969 | || sym->attr.allocatable | |
4970 | || sym->attr.cray_pointee | |
4971 | || sym->attr.threadprivate | |
4972 | || sym->attr.is_bind_c | |
4973 | || sym->attr.subref_array_pointer | |
4974 | || sym->attr.assign) | |
4975 | return; | |
4976 | ||
4977 | if (sym->ts.type == BT_CHARACTER) | |
4978 | { | |
eeebe20b | 4979 | gfc_conv_const_charlen (sym->ts.u.cl); |
4980 | if (sym->ts.u.cl->backend_decl == NULL | |
4981 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4982 | return; |
4983 | } | |
eeebe20b | 4984 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4985 | return; |
4986 | ||
4987 | if (sym->as) | |
4988 | { | |
4989 | int n; | |
4990 | ||
4991 | if (sym->as->type != AS_EXPLICIT) | |
4992 | return; | |
4993 | for (n = 0; n < sym->as->rank; n++) | |
4994 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4995 | || sym->as->upper[n] == NULL | |
4996 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4997 | return; | |
4998 | } | |
4999 | ||
5000 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5001 | sym->attr.dimension, false)) | |
5002 | return; | |
5003 | ||
4fe73152 | 5004 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 5005 | return; |
5006 | ||
2eb674c9 | 5007 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 5008 | decl = build_decl (input_location, |
5009 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 5010 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5011 | if (sym->attr.flavor == FL_PARAMETER) | |
5012 | TREE_READONLY (decl) = 1; | |
5013 | gfc_set_decl_location (decl, &sym->declared_at); | |
5014 | if (sym->attr.dimension) | |
5015 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5016 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5017 | TREE_STATIC (decl) = 1; | |
5018 | TREE_USED (decl) = 1; | |
5019 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5020 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 5021 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5022 | TREE_TYPE (decl), | |
5023 | sym->attr.dimension, | |
5024 | false, false); | |
3a1c9df2 | 5025 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 5026 | } |
5027 | ||
a961ca30 | 5028 | |
5029 | static void | |
5030 | generate_coarray_sym_init (gfc_symbol *sym) | |
5031 | { | |
eee0cf09 | 5032 | tree tmp, size, decl, token, desc; |
bd47f0bc | 5033 | bool is_lock_type, is_event_type; |
498b946e | 5034 | int reg_type; |
eee0cf09 | 5035 | gfc_se se; |
5036 | symbol_attribute attr; | |
a961ca30 | 5037 | |
5038 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 5039 | || sym->attr.use_assoc || !sym->attr.referenced |
5040 | || sym->attr.select_type_temporary) | |
a961ca30 | 5041 | return; |
5042 | ||
5043 | decl = sym->backend_decl; | |
5044 | TREE_USED(decl) = 1; | |
5045 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5046 | ||
498b946e | 5047 | is_lock_type = sym->ts.type == BT_DERIVED |
5048 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5049 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5050 | ||
bd47f0bc | 5051 | is_event_type = sym->ts.type == BT_DERIVED |
5052 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5053 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5054 | ||
a961ca30 | 5055 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5056 | to make sure the variable is not optimized away. */ | |
5057 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5058 | ||
498b946e | 5059 | /* For lock types, we pass the array size as only the library knows the |
5060 | size of the variable. */ | |
bd47f0bc | 5061 | if (is_lock_type || is_event_type) |
498b946e | 5062 | size = gfc_index_one_node; |
5063 | else | |
5064 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 5065 | |
a90fe829 | 5066 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 5067 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5068 | fold_convert (size_type_node, size), | |
5069 | build_int_cst (size_type_node, 1)); | |
5070 | ||
a961ca30 | 5071 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5072 | { | |
5073 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5074 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 5075 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 5076 | } |
5077 | ||
5078 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5079 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5080 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 5081 | if (is_lock_type) |
5082 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 5083 | else if (is_event_type) |
5084 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 5085 | else |
5086 | reg_type = GFC_CAF_COARRAY_STATIC; | |
eee0cf09 | 5087 | |
5088 | gfc_init_se (&se, NULL); | |
5089 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5090 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5091 | ||
5092 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
498b946e | 5093 | build_int_cst (integer_type_node, reg_type), |
eee0cf09 | 5094 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5095 | null_pointer_node, /* stat. */ | |
a961ca30 | 5096 | null_pointer_node, /* errgmsg, errmsg_len. */ |
5097 | build_int_cst (integer_type_node, 0)); | |
eee0cf09 | 5098 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5099 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5100 | gfc_conv_descriptor_data_get (desc))); | |
a961ca30 | 5101 | |
a961ca30 | 5102 | /* Handle "static" initializer. */ |
5103 | if (sym->value) | |
5104 | { | |
5105 | sym->attr.pointer = 1; | |
5106 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5107 | true, false); | |
5108 | sym->attr.pointer = 0; | |
5109 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5110 | } | |
5111 | } | |
5112 | ||
5113 | ||
5114 | /* Generate constructor function to initialize static, nonallocatable | |
5115 | coarrays. */ | |
5116 | ||
5117 | static void | |
5118 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5119 | { | |
5120 | tree fndecl, tmp, decl, save_fn_decl; | |
5121 | ||
5122 | save_fn_decl = current_function_decl; | |
5123 | push_function_context (); | |
5124 | ||
5125 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5126 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5127 | create_tmp_var_name ("_caf_init"), tmp); | |
5128 | ||
5129 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5130 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5131 | ||
5132 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5133 | DECL_ARTIFICIAL (decl) = 1; | |
5134 | DECL_IGNORED_P (decl) = 1; | |
5135 | DECL_CONTEXT (decl) = fndecl; | |
5136 | DECL_RESULT (fndecl) = decl; | |
5137 | ||
5138 | pushdecl (fndecl); | |
5139 | current_function_decl = fndecl; | |
5140 | announce_function (fndecl); | |
5141 | ||
5142 | rest_of_decl_compilation (fndecl, 0, 0); | |
5143 | make_decl_rtl (fndecl); | |
00cf115c | 5144 | allocate_struct_function (fndecl, false); |
a961ca30 | 5145 | |
cde2be84 | 5146 | pushlevel (); |
a961ca30 | 5147 | gfc_init_block (&caf_init_block); |
5148 | ||
5149 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5150 | ||
5151 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5152 | decl = getdecls (); | |
5153 | ||
cde2be84 | 5154 | poplevel (1, 1); |
a961ca30 | 5155 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5156 | ||
5157 | DECL_SAVED_TREE (fndecl) | |
5158 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5159 | DECL_INITIAL (fndecl)); | |
5160 | dump_function (TDI_original, fndecl); | |
5161 | ||
5162 | cfun->function_end_locus = input_location; | |
5163 | set_cfun (NULL); | |
5164 | ||
5165 | if (decl_function_context (fndecl)) | |
415d1b9a | 5166 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5167 | else |
35ee1c66 | 5168 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5169 | |
5170 | pop_function_context (); | |
5171 | current_function_decl = save_fn_decl; | |
5172 | } | |
5173 | ||
5174 | ||
c40a5c1b | 5175 | static void |
5176 | create_module_nml_decl (gfc_symbol *sym) | |
5177 | { | |
5178 | if (sym->attr.flavor == FL_NAMELIST) | |
5179 | { | |
5180 | tree decl = generate_namelist_decl (sym); | |
5181 | pushdecl (decl); | |
5182 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5183 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5184 | rest_of_decl_compilation (decl, 1, 0); | |
5185 | gfc_module_add_decl (cur_module, decl); | |
5186 | } | |
5187 | } | |
5188 | ||
5189 | ||
51d9479b | 5190 | /* Generate all the required code for module variables. */ |
5191 | ||
5192 | void | |
5193 | gfc_generate_module_vars (gfc_namespace * ns) | |
5194 | { | |
5195 | module_namespace = ns; | |
5196 | cur_module = gfc_find_module (ns->proc_name->name); | |
5197 | ||
5198 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5199 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5200 | ||
5201 | /* Generate COMMON blocks. */ | |
5202 | gfc_trans_common (ns); | |
5203 | ||
a961ca30 | 5204 | has_coarray_vars = false; |
5205 | ||
51d9479b | 5206 | /* Create decls for all the module variables. */ |
5207 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5208 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5209 | |
4fe73152 | 5210 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5211 | generate_coarray_init (ns); |
5212 | ||
51d9479b | 5213 | cur_module = NULL; |
5214 | ||
5215 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5216 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5217 | } |
5218 | ||
5219 | ||
4ee9c684 | 5220 | static void |
5221 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5222 | { | |
5223 | gfc_namespace *ns; | |
5224 | ||
5225 | /* We create all the prototypes before generating any code. */ | |
5226 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5227 | { | |
5228 | /* Skip namespaces from used modules. */ | |
5229 | if (ns->parent != parent) | |
5230 | continue; | |
5231 | ||
d896f9b3 | 5232 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5233 | } |
5234 | ||
5235 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5236 | { | |
5237 | /* Skip namespaces from used modules. */ | |
5238 | if (ns->parent != parent) | |
5239 | continue; | |
5240 | ||
5241 | gfc_generate_function_code (ns); | |
5242 | } | |
5243 | } | |
5244 | ||
5245 | ||
d95efb59 | 5246 | /* Drill down through expressions for the array specification bounds and |
5247 | character length calling generate_local_decl for all those variables | |
5248 | that have not already been declared. */ | |
5249 | ||
5250 | static void | |
5251 | generate_local_decl (gfc_symbol *); | |
5252 | ||
1acb400a | 5253 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5254 | |
1acb400a | 5255 | static bool |
5256 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5257 | int *f ATTRIBUTE_UNUSED) | |
5258 | { | |
5259 | if (e->expr_type != EXPR_VARIABLE | |
5260 | || sym == e->symtree->n.sym | |
d95efb59 | 5261 | || e->symtree->n.sym->mark |
5262 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5263 | return false; |
d95efb59 | 5264 | |
1acb400a | 5265 | generate_local_decl (e->symtree->n.sym); |
5266 | return false; | |
5267 | } | |
d95efb59 | 5268 | |
1acb400a | 5269 | static void |
5270 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5271 | { | |
5272 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5273 | } |
5274 | ||
5275 | ||
f6d0e37a | 5276 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5277 | |
5278 | static void | |
5279 | generate_dependency_declarations (gfc_symbol *sym) | |
5280 | { | |
5281 | int i; | |
5282 | ||
5283 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5284 | && sym->ts.u.cl |
5285 | && sym->ts.u.cl->length | |
5286 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5287 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5288 | |
5289 | if (sym->as && sym->as->rank) | |
5290 | { | |
5291 | for (i = 0; i < sym->as->rank; i++) | |
5292 | { | |
5293 | generate_expr_decls (sym, sym->as->lower[i]); | |
5294 | generate_expr_decls (sym, sym->as->upper[i]); | |
5295 | } | |
5296 | } | |
5297 | } | |
5298 | ||
5299 | ||
4ee9c684 | 5300 | /* Generate decls for all local variables. We do this to ensure correct |
5301 | handling of expressions which only appear in the specification of | |
5302 | other functions. */ | |
5303 | ||
5304 | static void | |
5305 | generate_local_decl (gfc_symbol * sym) | |
5306 | { | |
5307 | if (sym->attr.flavor == FL_VARIABLE) | |
5308 | { | |
a961ca30 | 5309 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5310 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5311 | has_coarray_vars = true; | |
5312 | ||
d95efb59 | 5313 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5314 | generate_dependency_declarations (sym); |
d95efb59 | 5315 | |
4ee9c684 | 5316 | if (sym->attr.referenced) |
8714fc76 | 5317 | gfc_get_symbol_decl (sym); |
4acad347 | 5318 | |
5319 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5320 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5321 | { |
4acad347 | 5322 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5323 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5324 | { |
5325 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5326 | gfc_warning (OPT_Wunused_dummy_argument, |
5327 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5328 | "INTENT(OUT) but was not set", sym->name, |
5329 | &sym->declared_at); | |
48cb4748 | 5330 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5331 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5332 | gfc_warning (OPT_Wunused_dummy_argument, |
5333 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5334 | "declared INTENT(OUT) but was not set and " |
5335 | "does not have a default initializer", | |
5336 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5337 | if (sym->backend_decl != NULL_TREE) |
5338 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5339 | } |
8290d53f | 5340 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5341 | { |
4166acc7 | 5342 | gfc_warning (OPT_Wunused_dummy_argument, |
5343 | "Unused dummy argument %qs at %L", sym->name, | |
5344 | &sym->declared_at); | |
90a4a5a6 | 5345 | if (sym->backend_decl != NULL_TREE) |
5346 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5347 | } | |
7c0ca46e | 5348 | } |
4acad347 | 5349 | |
f888a3fb | 5350 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5351 | block or a namelist. */ |
36609028 | 5352 | else if (warn_unused_variable |
1dbfac29 | 5353 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5354 | { |
1dbfac29 | 5355 | if (sym->attr.use_only) |
5356 | { | |
4166acc7 | 5357 | gfc_warning (OPT_Wunused_variable, |
5358 | "Unused module variable %qs which has been " | |
1dbfac29 | 5359 | "explicitly imported at %L", sym->name, |
5360 | &sym->declared_at); | |
5361 | if (sym->backend_decl != NULL_TREE) | |
5362 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5363 | } | |
5364 | else if (!sym->attr.use_assoc) | |
5365 | { | |
99af6e70 | 5366 | /* Corner case: the symbol may be an entry point. At this point, |
5367 | it may appear to be an unused variable. Suppress warning. */ | |
5368 | bool enter = false; | |
5369 | gfc_entry_list *el; | |
5370 | ||
5371 | for (el = sym->ns->entries; el; el=el->next) | |
5372 | if (strcmp(sym->name, el->sym->name) == 0) | |
5373 | enter = true; | |
5374 | ||
5375 | if (!enter) | |
5376 | gfc_warning (OPT_Wunused_variable, | |
5377 | "Unused variable %qs declared at %L", | |
5378 | sym->name, &sym->declared_at); | |
1dbfac29 | 5379 | if (sym->backend_decl != NULL_TREE) |
5380 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5381 | } | |
90a4a5a6 | 5382 | } |
8714fc76 | 5383 | |
d4163395 | 5384 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5385 | references the length variable, so force gfc_get_symbol_decl | |
5386 | even when not referenced. If optimize > 0, it will be optimized | |
5387 | away anyway. But do this only after emitting -Wunused-parameter | |
5388 | warning if requested. */ | |
8714fc76 | 5389 | if (sym->attr.dummy && !sym->attr.referenced |
5390 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5391 | && sym->ts.u.cl->backend_decl != NULL |
fe732a9b | 5392 | && VAR_P (sym->ts.u.cl->backend_decl)) |
d4163395 | 5393 | { |
5394 | sym->attr.referenced = 1; | |
5395 | gfc_get_symbol_decl (sym); | |
5396 | } | |
76776e6d | 5397 | |
d0163401 | 5398 | /* INTENT(out) dummy arguments and result variables with allocatable |
5399 | components are reset by default and need to be set referenced to | |
5400 | generate the code for nullification and automatic lengths. */ | |
5401 | if (!sym->attr.referenced | |
8714fc76 | 5402 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5403 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5404 | && !sym->attr.pointer |
d0163401 | 5405 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5406 | || | |
5407 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5408 | { |
5409 | sym->attr.referenced = 1; | |
5410 | gfc_get_symbol_decl (sym); | |
5411 | } | |
5412 | ||
e72f979a | 5413 | /* Check for dependencies in the array specification and string |
5414 | length, adding the necessary declarations to the function. We | |
5415 | mark the symbol now, as well as in traverse_ns, to prevent | |
5416 | getting stuck in a circular dependency. */ | |
5417 | sym->mark = 1; | |
4ee9c684 | 5418 | } |
5dd246c1 | 5419 | else if (sym->attr.flavor == FL_PARAMETER) |
5420 | { | |
6ecfe89d | 5421 | if (warn_unused_parameter |
f326eb81 | 5422 | && !sym->attr.referenced) |
5423 | { | |
5424 | if (!sym->attr.use_assoc) | |
4166acc7 | 5425 | gfc_warning (OPT_Wunused_parameter, |
5426 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5427 | &sym->declared_at); |
5428 | else if (sym->attr.use_only) | |
4166acc7 | 5429 | gfc_warning (OPT_Wunused_parameter, |
5430 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5431 | "imported at %L", sym->name, &sym->declared_at); |
5432 | } | |
758c9897 | 5433 | |
5434 | if (sym->ns | |
5435 | && sym->ns->parent | |
5436 | && sym->ns->parent->code | |
5437 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5438 | { | |
5439 | if (sym->attr.referenced) | |
5440 | gfc_get_symbol_decl (sym); | |
5441 | sym->mark = 1; | |
5442 | } | |
5dd246c1 | 5443 | } |
fa7b6574 | 5444 | else if (sym->attr.flavor == FL_PROCEDURE) |
5445 | { | |
5446 | /* TODO: move to the appropriate place in resolve.c. */ | |
5447 | if (warn_return_type | |
5448 | && sym->attr.function | |
5449 | && sym->result | |
5450 | && sym != sym->result | |
5451 | && !sym->result->attr.referenced | |
5452 | && !sym->attr.use_assoc | |
5453 | && sym->attr.if_source != IFSRC_IFBODY) | |
5454 | { | |
4166acc7 | 5455 | gfc_warning (OPT_Wreturn_type, |
5456 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5457 | "%L not set", sym->result->name, sym->name, |
5458 | &sym->result->declared_at); | |
5459 | ||
5460 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5461 | sym->result->mark = 1; |
fa7b6574 | 5462 | } |
5463 | } | |
c5d33754 | 5464 | |
19ba2ad8 | 5465 | if (sym->attr.dummy == 1) |
5466 | { | |
5467 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5468 | procedures if they are passed by value. The tree type for them will | |
5469 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5470 | what C would do with characters passed by-value. The value attribute | |
5471 | implies the dummy is a scalar. */ | |
5472 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5473 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5474 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5475 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5476 | |
5477 | /* Unused procedure passed as dummy argument. */ | |
5478 | if (sym->attr.flavor == FL_PROCEDURE) | |
5479 | { | |
5480 | if (!sym->attr.referenced) | |
5481 | { | |
8290d53f | 5482 | if (warn_unused_dummy_argument) |
4166acc7 | 5483 | gfc_warning (OPT_Wunused_dummy_argument, |
5484 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5485 | &sym->declared_at); |
fc6338c7 | 5486 | } |
5487 | ||
5488 | /* Silence bogus "unused parameter" warnings from the | |
5489 | middle end. */ | |
5490 | if (sym->backend_decl != NULL_TREE) | |
5491 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5492 | } | |
19ba2ad8 | 5493 | } |
5494 | ||
c5d33754 | 5495 | /* Make sure we convert the types of the derived types from iso_c_binding |
5496 | into (void *). */ | |
5497 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5498 | && sym->ts.type == BT_DERIVED) | |
5499 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5500 | } |
5501 | ||
c40a5c1b | 5502 | |
5503 | static void | |
5504 | generate_local_nml_decl (gfc_symbol * sym) | |
5505 | { | |
5506 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5507 | { | |
5508 | tree decl = generate_namelist_decl (sym); | |
5509 | pushdecl (decl); | |
5510 | } | |
5511 | } | |
5512 | ||
5513 | ||
4ee9c684 | 5514 | static void |
5515 | generate_local_vars (gfc_namespace * ns) | |
5516 | { | |
5517 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5518 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5519 | } |
5520 | ||
5521 | ||
1b716045 | 5522 | /* Generate a switch statement to jump to the correct entry point. Also |
5523 | creates the label decls for the entry points. */ | |
4ee9c684 | 5524 | |
1b716045 | 5525 | static tree |
5526 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5527 | { |
1b716045 | 5528 | stmtblock_t block; |
5529 | tree label; | |
5530 | tree tmp; | |
5531 | tree val; | |
4ee9c684 | 5532 | |
1b716045 | 5533 | gfc_init_block (&block); |
5534 | for (; el; el = el->next) | |
5535 | { | |
5536 | /* Add the case label. */ | |
b797d6d3 | 5537 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5538 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5539 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5540 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5541 | |
1b716045 | 5542 | /* And jump to the actual entry point. */ |
5543 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5544 | tmp = build1_v (GOTO_EXPR, label); |
5545 | gfc_add_expr_to_block (&block, tmp); | |
5546 | ||
5547 | /* Save the label decl. */ | |
5548 | el->label = label; | |
5549 | } | |
5550 | tmp = gfc_finish_block (&block); | |
5551 | /* The first argument selects the entry point. */ | |
5552 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 5553 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
5554 | val, tmp, NULL_TREE); | |
1b716045 | 5555 | return tmp; |
4ee9c684 | 5556 | } |
5557 | ||
6374121b | 5558 | |
a4abf8a0 | 5559 | /* Add code to string lengths of actual arguments passed to a function against |
5560 | the expected lengths of the dummy arguments. */ | |
5561 | ||
5562 | static void | |
5563 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5564 | { | |
5565 | gfc_formal_arglist *formal; | |
5566 | ||
6777213b | 5567 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5568 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5569 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5570 | { |
5571 | enum tree_code comparison; | |
5572 | tree cond; | |
5573 | tree argname; | |
5574 | gfc_symbol *fsym; | |
5575 | gfc_charlen *cl; | |
5576 | const char *message; | |
5577 | ||
5578 | fsym = formal->sym; | |
eeebe20b | 5579 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5580 | |
5581 | gcc_assert (cl); | |
5582 | gcc_assert (cl->passed_length != NULL_TREE); | |
5583 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5584 | ||
5585 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5586 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5587 | that the actual string length is *at least* the expected one. |
5588 | Sequence association allows for a mismatch of the string length | |
5589 | if the actual argument is (part of) an array, but only if the | |
5590 | dummy argument is an array. (See "Sequence association" in | |
5591 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5592 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5593 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5594 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5595 | { |
5596 | comparison = NE_EXPR; | |
5597 | message = _("Actual string length does not match the declared one" | |
5598 | " for dummy argument '%s' (%ld/%ld)"); | |
5599 | } | |
be4be771 | 5600 | else if (fsym->as && fsym->as->rank != 0) |
5601 | continue; | |
a4abf8a0 | 5602 | else |
5603 | { | |
5604 | comparison = LT_EXPR; | |
5605 | message = _("Actual string length is shorter than the declared one" | |
5606 | " for dummy argument '%s' (%ld/%ld)"); | |
5607 | } | |
5608 | ||
5609 | /* Build the condition. For optional arguments, an actual length | |
5610 | of 0 is also acceptable if the associated string is NULL, which | |
5611 | means the argument was not passed. */ | |
fd779e1d | 5612 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
5613 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 5614 | if (fsym->attr.optional) |
5615 | { | |
5616 | tree not_absent; | |
5617 | tree not_0length; | |
5618 | tree absent_failed; | |
5619 | ||
fd779e1d | 5620 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
5621 | boolean_type_node, | |
5622 | cl->passed_length, | |
385f3f36 | 5623 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5624 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5625 | fsym->attr.referenced = 1; | |
5626 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5627 | |
fd779e1d | 5628 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
5629 | boolean_type_node, not_0length, | |
5630 | not_absent); | |
a4abf8a0 | 5631 | |
fd779e1d | 5632 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
5633 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 5634 | } |
5635 | ||
5636 | /* Build the runtime check. */ | |
5637 | argname = gfc_build_cstring_const (fsym->name); | |
5638 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5639 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5640 | message, argname, | |
5641 | fold_convert (long_integer_type_node, | |
5642 | cl->passed_length), | |
5643 | fold_convert (long_integer_type_node, | |
5644 | cl->backend_decl)); | |
5645 | } | |
5646 | } | |
5647 | ||
5648 | ||
7257a5d2 | 5649 | static void |
5650 | create_main_function (tree fndecl) | |
5651 | { | |
43702da6 | 5652 | tree old_context; |
7257a5d2 | 5653 | tree ftn_main; |
5654 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5655 | stmtblock_t body; | |
5656 | ||
43702da6 | 5657 | old_context = current_function_decl; |
5658 | ||
5659 | if (old_context) | |
5660 | { | |
5661 | push_function_context (); | |
5662 | saved_parent_function_decls = saved_function_decls; | |
5663 | saved_function_decls = NULL_TREE; | |
5664 | } | |
5665 | ||
7257a5d2 | 5666 | /* main() function must be declared with global scope. */ |
5667 | gcc_assert (current_function_decl == NULL_TREE); | |
5668 | ||
5669 | /* Declare the function. */ | |
5670 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5671 | build_pointer_type (pchar_type_node), | |
5672 | NULL_TREE); | |
0509d0ee | 5673 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5674 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5675 | main_identifier_node, tmp); | |
7257a5d2 | 5676 | DECL_EXTERNAL (ftn_main) = 0; |
5677 | TREE_PUBLIC (ftn_main) = 1; | |
5678 | TREE_STATIC (ftn_main) = 1; | |
5679 | DECL_ATTRIBUTES (ftn_main) | |
5680 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5681 | ||
5682 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5683 | result_decl = build_decl (input_location, |
5684 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5685 | DECL_ARTIFICIAL (result_decl) = 1; |
5686 | DECL_IGNORED_P (result_decl) = 1; | |
5687 | DECL_CONTEXT (result_decl) = ftn_main; | |
5688 | DECL_RESULT (ftn_main) = result_decl; | |
5689 | ||
5690 | pushdecl (ftn_main); | |
5691 | ||
5692 | /* Get the arguments. */ | |
5693 | ||
5694 | arglist = NULL_TREE; | |
5695 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5696 | ||
5697 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5698 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5699 | DECL_CONTEXT (argc) = ftn_main; |
5700 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5701 | TREE_READONLY (argc) = 1; | |
5702 | gfc_finish_decl (argc); | |
5703 | arglist = chainon (arglist, argc); | |
5704 | ||
5705 | typelist = TREE_CHAIN (typelist); | |
5706 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5707 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5708 | DECL_CONTEXT (argv) = ftn_main; |
5709 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5710 | TREE_READONLY (argv) = 1; | |
5711 | DECL_BY_REFERENCE (argv) = 1; | |
5712 | gfc_finish_decl (argv); | |
5713 | arglist = chainon (arglist, argv); | |
5714 | ||
5715 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5716 | current_function_decl = ftn_main; | |
5717 | announce_function (ftn_main); | |
5718 | ||
5719 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5720 | make_decl_rtl (ftn_main); | |
00cf115c | 5721 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5722 | pushlevel (); |
7257a5d2 | 5723 | |
5724 | gfc_init_block (&body); | |
5725 | ||
293d72e0 | 5726 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5727 | |
d44f2f7c | 5728 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5729 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5730 | { |
5731 | tree pint_type, pppchar_type; | |
5732 | pint_type = build_pointer_type (integer_type_node); | |
5733 | pppchar_type | |
5734 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5735 | ||
d44f2f7c | 5736 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5737 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5738 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5739 | gfc_add_expr_to_block (&body, tmp); |
5740 | } | |
5741 | ||
7257a5d2 | 5742 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5743 | TREE_USED (argc) = 1; |
5744 | TREE_USED (argv) = 1; | |
389dd41b | 5745 | tmp = build_call_expr_loc (input_location, |
5746 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5747 | gfc_add_expr_to_block (&body, tmp); |
5748 | ||
5749 | /* Add a call to set_options to set up the runtime library Fortran | |
5750 | language standard parameters. */ | |
5751 | { | |
5752 | tree array_type, array, var; | |
f1f41a6c | 5753 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5754 | |
5755 | /* Passing a new option to the library requires four modifications: | |
5756 | + add it to the tree_cons list below | |
5757 | + change the array size in the call to build_array_type | |
5758 | + change the first argument to the library call | |
5759 | gfor_fndecl_set_options | |
5760 | + modify the library (runtime/compile_options.c)! */ | |
5761 | ||
06f13dc1 | 5762 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5763 | build_int_cst (integer_type_node, | |
5764 | gfc_option.warn_std)); | |
5765 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5766 | build_int_cst (integer_type_node, | |
5767 | gfc_option.allow_std)); | |
5768 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5769 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5770 | /* TODO: This is the old -fdump-core option, which is unused but |
5771 | passed due to ABI compatibility; remove when bumping the | |
5772 | library ABI. */ | |
06f13dc1 | 5773 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5774 | build_int_cst (integer_type_node, | |
b2130263 | 5775 | 0)); |
06f13dc1 | 5776 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5777 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 5778 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5779 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 5780 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5781 | build_int_cst (integer_type_node, | |
5782 | (gfc_option.rtcheck | |
5783 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5784 | /* TODO: This is the -frange-check option, which no longer affects |
5785 | library behavior; when bumping the library ABI this slot can be | |
5786 | reused for something else. As it is the last element in the | |
293d72e0 | 5787 | array, we can instead leave it out altogether. */ |
553e7cef | 5788 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5789 | build_int_cst (integer_type_node, 0)); | |
06f13dc1 | 5790 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5791 | build_int_cst (integer_type_node, | |
553e7cef | 5792 | gfc_option.fpe_summary)); |
7257a5d2 | 5793 | |
5794 | array_type = build_array_type (integer_type_node, | |
553e7cef | 5795 | build_index_type (size_int (8))); |
06f13dc1 | 5796 | array = build_constructor (array_type, v); |
7257a5d2 | 5797 | TREE_CONSTANT (array) = 1; |
5798 | TREE_STATIC (array) = 1; | |
5799 | ||
5800 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 5801 | var = build_decl (input_location, VAR_DECL, |
5802 | create_tmp_var_name ("options"), | |
5803 | array_type); | |
5804 | DECL_ARTIFICIAL (var) = 1; | |
5805 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 5806 | TREE_CONSTANT (var) = 1; |
5807 | TREE_STATIC (var) = 1; | |
5808 | TREE_READONLY (var) = 1; | |
5809 | DECL_INITIAL (var) = array; | |
bf77f8ee | 5810 | pushdecl (var); |
7257a5d2 | 5811 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
5812 | ||
389dd41b | 5813 | tmp = build_call_expr_loc (input_location, |
5814 | gfor_fndecl_set_options, 2, | |
553e7cef | 5815 | build_int_cst (integer_type_node, 9), var); |
7257a5d2 | 5816 | gfc_add_expr_to_block (&body, tmp); |
5817 | } | |
5818 | ||
5819 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5820 | the library will raise a FPE when needed. */ | |
5821 | if (gfc_option.fpe != 0) | |
5822 | { | |
389dd41b | 5823 | tmp = build_call_expr_loc (input_location, |
5824 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5825 | build_int_cst (integer_type_node, |
5826 | gfc_option.fpe)); | |
5827 | gfc_add_expr_to_block (&body, tmp); | |
5828 | } | |
5829 | ||
5830 | /* If this is the main program and an -fconvert option was provided, | |
5831 | add a call to set_convert. */ | |
5832 | ||
4fe73152 | 5833 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 5834 | { |
389dd41b | 5835 | tmp = build_call_expr_loc (input_location, |
5836 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 5837 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 5838 | gfc_add_expr_to_block (&body, tmp); |
5839 | } | |
5840 | ||
5841 | /* If this is the main program and an -frecord-marker option was provided, | |
5842 | add a call to set_record_marker. */ | |
5843 | ||
eb106faf | 5844 | if (flag_record_marker != 0) |
7257a5d2 | 5845 | { |
389dd41b | 5846 | tmp = build_call_expr_loc (input_location, |
5847 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5848 | build_int_cst (integer_type_node, |
eb106faf | 5849 | flag_record_marker)); |
7257a5d2 | 5850 | gfc_add_expr_to_block (&body, tmp); |
5851 | } | |
5852 | ||
eb106faf | 5853 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 5854 | { |
389dd41b | 5855 | tmp = build_call_expr_loc (input_location, |
5856 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5857 | build_int_cst (integer_type_node, |
eb106faf | 5858 | flag_max_subrecord_length)); |
7257a5d2 | 5859 | gfc_add_expr_to_block (&body, tmp); |
5860 | } | |
5861 | ||
5862 | /* Call MAIN__(). */ | |
389dd41b | 5863 | tmp = build_call_expr_loc (input_location, |
5864 | fndecl, 0); | |
7257a5d2 | 5865 | gfc_add_expr_to_block (&body, tmp); |
5866 | ||
43702da6 | 5867 | /* Mark MAIN__ as used. */ |
5868 | TREE_USED (fndecl) = 1; | |
5869 | ||
70b5944a | 5870 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 5871 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 5872 | { |
70b5944a | 5873 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
5874 | gfc_add_expr_to_block (&body, tmp); | |
5875 | } | |
5876 | ||
7257a5d2 | 5877 | /* "return 0". */ |
fd779e1d | 5878 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5879 | DECL_RESULT (ftn_main), | |
5880 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5881 | tmp = build1_v (RETURN_EXPR, tmp); |
5882 | gfc_add_expr_to_block (&body, tmp); | |
5883 | ||
5884 | ||
5885 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5886 | decl = getdecls (); | |
5887 | ||
5888 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5889 | poplevel (1, 1); |
7257a5d2 | 5890 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5891 | ||
5892 | DECL_SAVED_TREE (ftn_main) | |
5893 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5894 | DECL_INITIAL (ftn_main)); | |
5895 | ||
5896 | /* Output the GENERIC tree. */ | |
5897 | dump_function (TDI_original, ftn_main); | |
5898 | ||
35ee1c66 | 5899 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 5900 | |
5901 | if (old_context) | |
5902 | { | |
5903 | pop_function_context (); | |
5904 | saved_function_decls = saved_parent_function_decls; | |
5905 | } | |
5906 | current_function_decl = old_context; | |
7257a5d2 | 5907 | } |
5908 | ||
5909 | ||
89ac8ba1 | 5910 | /* Get the result expression for a procedure. */ |
5911 | ||
5912 | static tree | |
5913 | get_proc_result (gfc_symbol* sym) | |
5914 | { | |
5915 | if (sym->attr.subroutine || sym == sym->result) | |
5916 | { | |
5917 | if (current_fake_result_decl != NULL) | |
5918 | return TREE_VALUE (current_fake_result_decl); | |
5919 | ||
5920 | return NULL_TREE; | |
5921 | } | |
5922 | ||
5923 | return sym->result->backend_decl; | |
5924 | } | |
5925 | ||
5926 | ||
5927 | /* Generate an appropriate return-statement for a procedure. */ | |
5928 | ||
5929 | tree | |
5930 | gfc_generate_return (void) | |
5931 | { | |
5932 | gfc_symbol* sym; | |
5933 | tree result; | |
5934 | tree fndecl; | |
5935 | ||
5936 | sym = current_procedure_symbol; | |
5937 | fndecl = sym->backend_decl; | |
5938 | ||
5939 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5940 | result = NULL_TREE; | |
5941 | else | |
5942 | { | |
5943 | result = get_proc_result (sym); | |
5944 | ||
5945 | /* Set the return value to the dummy result variable. The | |
5946 | types may be different for scalar default REAL functions | |
5947 | with -ff2c, therefore we have to convert. */ | |
5948 | if (result != NULL_TREE) | |
5949 | { | |
5950 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5951 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5952 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5953 | result); | |
89ac8ba1 | 5954 | } |
5955 | } | |
5956 | ||
5957 | return build1_v (RETURN_EXPR, result); | |
5958 | } | |
5959 | ||
5960 | ||
d566c3e0 | 5961 | static void |
5962 | is_from_ieee_module (gfc_symbol *sym) | |
5963 | { | |
5964 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
5965 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
5966 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
5967 | seen_ieee_symbol = 1; | |
5968 | } | |
5969 | ||
5970 | ||
5971 | static int | |
5972 | is_ieee_module_used (gfc_namespace *ns) | |
5973 | { | |
5974 | seen_ieee_symbol = 0; | |
5975 | gfc_traverse_ns (ns, is_from_ieee_module); | |
5976 | return seen_ieee_symbol; | |
5977 | } | |
5978 | ||
5979 | ||
01d728a4 | 5980 | static gfc_omp_clauses *module_oacc_clauses; |
5981 | ||
5982 | ||
5983 | static void | |
5984 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
5985 | { | |
5986 | gfc_omp_namelist *n; | |
5987 | ||
5988 | n = gfc_get_omp_namelist (); | |
5989 | n->sym = sym; | |
5990 | n->u.map_op = map_op; | |
5991 | ||
5992 | if (!module_oacc_clauses) | |
5993 | module_oacc_clauses = gfc_get_omp_clauses (); | |
5994 | ||
5995 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
5996 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
5997 | ||
5998 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
5999 | } | |
6000 | ||
6001 | ||
6002 | static void | |
6003 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6004 | { | |
6005 | if (sym->attr.use_assoc) | |
6006 | { | |
6007 | gfc_omp_map_op map_op; | |
6008 | ||
6009 | if (sym->attr.oacc_declare_create) | |
6010 | map_op = OMP_MAP_FORCE_ALLOC; | |
6011 | ||
6012 | if (sym->attr.oacc_declare_copyin) | |
6013 | map_op = OMP_MAP_FORCE_TO; | |
6014 | ||
6015 | if (sym->attr.oacc_declare_deviceptr) | |
6016 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6017 | ||
6018 | if (sym->attr.oacc_declare_device_resident) | |
6019 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6020 | ||
6021 | if (sym->attr.oacc_declare_create | |
6022 | || sym->attr.oacc_declare_copyin | |
6023 | || sym->attr.oacc_declare_deviceptr | |
6024 | || sym->attr.oacc_declare_device_resident) | |
6025 | { | |
6026 | sym->attr.referenced = 1; | |
6027 | add_clause (sym, map_op); | |
6028 | } | |
6029 | } | |
6030 | } | |
6031 | ||
6032 | ||
6033 | void | |
6034 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6035 | { | |
6036 | gfc_code *code; | |
6037 | gfc_oacc_declare *oc; | |
6038 | locus where = gfc_current_locus; | |
6039 | gfc_omp_clauses *omp_clauses = NULL; | |
6040 | gfc_omp_namelist *n, *p; | |
6041 | ||
6042 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6043 | ||
6044 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6045 | { | |
6046 | gfc_oacc_declare *new_oc; | |
6047 | ||
6048 | new_oc = gfc_get_oacc_declare (); | |
6049 | new_oc->next = ns->oacc_declare; | |
6050 | new_oc->clauses = module_oacc_clauses; | |
6051 | ||
6052 | ns->oacc_declare = new_oc; | |
6053 | module_oacc_clauses = NULL; | |
6054 | } | |
6055 | ||
6056 | if (!ns->oacc_declare) | |
6057 | return; | |
6058 | ||
6059 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6060 | { | |
6061 | if (oc->module_var) | |
6062 | continue; | |
6063 | ||
6064 | if (block) | |
6065 | gfc_error ("Sorry, $!ACC DECLARE at %L is not allowed " | |
6066 | "in BLOCK construct", &oc->loc); | |
6067 | ||
6068 | ||
6069 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6070 | { | |
6071 | if (omp_clauses == NULL) | |
6072 | { | |
6073 | omp_clauses = oc->clauses; | |
6074 | continue; | |
6075 | } | |
6076 | ||
6077 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6078 | ; | |
6079 | ||
6080 | gcc_assert (p->next == NULL); | |
6081 | ||
6082 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6083 | omp_clauses = oc->clauses; | |
6084 | } | |
6085 | } | |
6086 | ||
6087 | if (!omp_clauses) | |
6088 | return; | |
6089 | ||
6090 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6091 | { | |
6092 | switch (n->u.map_op) | |
6093 | { | |
6094 | case OMP_MAP_DEVICE_RESIDENT: | |
6095 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6096 | break; | |
6097 | ||
6098 | default: | |
6099 | break; | |
6100 | } | |
6101 | } | |
6102 | ||
6103 | code = XCNEW (gfc_code); | |
6104 | code->op = EXEC_OACC_DECLARE; | |
6105 | code->loc = where; | |
6106 | ||
6107 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6108 | code->ext.oacc_declare->clauses = omp_clauses; | |
6109 | ||
6110 | code->block = XCNEW (gfc_code); | |
6111 | code->block->op = EXEC_OACC_DECLARE; | |
6112 | code->block->loc = where; | |
6113 | ||
6114 | if (ns->code) | |
6115 | code->block->next = ns->code; | |
6116 | ||
6117 | ns->code = code; | |
6118 | ||
6119 | return; | |
6120 | } | |
6121 | ||
6122 | ||
4ee9c684 | 6123 | /* Generate code for a function. */ |
6124 | ||
6125 | void | |
6126 | gfc_generate_function_code (gfc_namespace * ns) | |
6127 | { | |
6128 | tree fndecl; | |
6129 | tree old_context; | |
6130 | tree decl; | |
6131 | tree tmp; | |
d566c3e0 | 6132 | tree fpstate = NULL_TREE; |
89ac8ba1 | 6133 | stmtblock_t init, cleanup; |
4ee9c684 | 6134 | stmtblock_t body; |
89ac8ba1 | 6135 | gfc_wrapped_block try_block; |
5fa0fdc2 | 6136 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 6137 | gfc_symbol *sym; |
89ac8ba1 | 6138 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 6139 | int rank, ieee; |
e50e62f5 | 6140 | bool is_recursive; |
4ee9c684 | 6141 | |
6142 | sym = ns->proc_name; | |
89ac8ba1 | 6143 | previous_procedure_symbol = current_procedure_symbol; |
6144 | current_procedure_symbol = sym; | |
1b716045 | 6145 | |
4ee9c684 | 6146 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 6147 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 6148 | sym->tlink = sym; |
6149 | ||
6150 | /* Create the declaration for functions with global scope. */ | |
6151 | if (!sym->backend_decl) | |
d896f9b3 | 6152 | gfc_create_function_decl (ns, false); |
4ee9c684 | 6153 | |
6154 | fndecl = sym->backend_decl; | |
6155 | old_context = current_function_decl; | |
6156 | ||
6157 | if (old_context) | |
6158 | { | |
6159 | push_function_context (); | |
6160 | saved_parent_function_decls = saved_function_decls; | |
6161 | saved_function_decls = NULL_TREE; | |
6162 | } | |
6163 | ||
1b716045 | 6164 | trans_function_start (sym); |
4ee9c684 | 6165 | |
89ac8ba1 | 6166 | gfc_init_block (&init); |
4ee9c684 | 6167 | |
c6871095 | 6168 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6169 | { | |
6170 | /* Copy length backend_decls to all entry point result | |
6171 | symbols. */ | |
6172 | gfc_entry_list *el; | |
6173 | tree backend_decl; | |
6174 | ||
eeebe20b | 6175 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6176 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6177 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6178 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6179 | } |
6180 | ||
4ee9c684 | 6181 | /* Translate COMMON blocks. */ |
6182 | gfc_trans_common (ns); | |
6183 | ||
c750cc52 | 6184 | /* Null the parent fake result declaration if this namespace is |
6185 | a module function or an external procedures. */ | |
6186 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6187 | || ns->parent == NULL) | |
6188 | parent_fake_result_decl = NULL_TREE; | |
6189 | ||
2b685f8e | 6190 | gfc_generate_contained_functions (ns); |
6191 | ||
9579733e | 6192 | nonlocal_dummy_decls = NULL; |
6193 | nonlocal_dummy_decl_pset = NULL; | |
6194 | ||
a961ca30 | 6195 | has_coarray_vars = false; |
4ee9c684 | 6196 | generate_local_vars (ns); |
5b11d932 | 6197 | |
4fe73152 | 6198 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6199 | generate_coarray_init (ns); |
6200 | ||
c750cc52 | 6201 | /* Keep the parent fake result declaration in module functions |
6202 | or external procedures. */ | |
6203 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6204 | || ns->parent == NULL) | |
6205 | current_fake_result_decl = parent_fake_result_decl; | |
6206 | else | |
6207 | current_fake_result_decl = NULL_TREE; | |
6208 | ||
89ac8ba1 | 6209 | is_recursive = sym->attr.recursive |
6210 | || (sym->attr.entry_master | |
6211 | && sym->ns->entries->sym->attr.recursive); | |
6212 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6213 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6214 | { |
6215 | char * msg; | |
6216 | ||
87fda26c | 6217 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6218 | sym->name); | |
89ac8ba1 | 6219 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); |
6220 | TREE_STATIC (recurcheckvar) = 1; | |
6221 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
6222 | gfc_add_expr_to_block (&init, recurcheckvar); | |
6223 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6224 | &sym->declared_at, msg); | |
6225 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 6226 | free (msg); |
89ac8ba1 | 6227 | } |
4ee9c684 | 6228 | |
d566c3e0 | 6229 | /* Check if an IEEE module is used in the procedure. If so, save |
6230 | the floating point state. */ | |
6231 | ieee = is_ieee_module_used (ns); | |
6232 | if (ieee) | |
d7333535 | 6233 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6234 | |
4ee9c684 | 6235 | /* Now generate the code for the body of this function. */ |
6236 | gfc_init_block (&body); | |
6237 | ||
6238 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6239 | && sym->attr.subroutine) |
4ee9c684 | 6240 | { |
6241 | tree alternate_return; | |
c750cc52 | 6242 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6243 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6244 | } |
6245 | ||
1b716045 | 6246 | if (ns->entries) |
6247 | { | |
6248 | /* Jump to the correct entry point. */ | |
6249 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6250 | gfc_add_expr_to_block (&body, tmp); | |
6251 | } | |
6252 | ||
a4abf8a0 | 6253 | /* If bounds-checking is enabled, generate code to check passed in actual |
6254 | arguments against the expected dummy argument attributes (e.g. string | |
6255 | lengths). */ | |
c1630d65 | 6256 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6257 | add_argument_checking (&body, sym); |
6258 | ||
01d728a4 | 6259 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6260 | |
4ee9c684 | 6261 | tmp = gfc_trans_code (ns->code); |
6262 | gfc_add_expr_to_block (&body, tmp); | |
6263 | ||
1caa6ab1 | 6264 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6265 | || (sym->result && sym->result != sym | |
6266 | && sym->result->ts.type == BT_DERIVED | |
6267 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6268 | { |
1caa6ab1 | 6269 | bool artificial_result_decl = false; |
89ac8ba1 | 6270 | tree result = get_proc_result (sym); |
1caa6ab1 | 6271 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6272 | ||
6273 | /* Make sure that a function returning an object with | |
6274 | alloc/pointer_components always has a result, where at least | |
6275 | the allocatable/pointer components are set to zero. */ | |
6276 | if (result == NULL_TREE && sym->attr.function | |
6277 | && ((sym->result->ts.type == BT_DERIVED | |
6278 | && (sym->attr.allocatable | |
6279 | || sym->attr.pointer | |
6280 | || sym->result->ts.u.derived->attr.alloc_comp | |
6281 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6282 | || (sym->result->ts.type == BT_CLASS | |
6283 | && (CLASS_DATA (sym)->attr.allocatable | |
6284 | || CLASS_DATA (sym)->attr.class_pointer | |
6285 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6286 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6287 | { | |
6288 | artificial_result_decl = true; | |
6289 | result = gfc_get_fake_result_decl (sym, 0); | |
6290 | } | |
4ee9c684 | 6291 | |
42766cb3 | 6292 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6293 | { |
deb7edfc | 6294 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6295 | && sym->result == sym) | |
6296 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6297 | null_pointer_node)); | |
42766cb3 | 6298 | else if (sym->ts.type == BT_CLASS |
6299 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6300 | && CLASS_DATA (sym)->attr.dimension == 0 |
6301 | && sym->result == sym) | |
42766cb3 | 6302 | { |
6303 | tmp = CLASS_DATA (sym)->backend_decl; | |
6304 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6305 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6306 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6307 | null_pointer_node)); | |
6308 | } | |
deb7edfc | 6309 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6310 | && !sym->attr.allocatable) |
53169279 | 6311 | { |
1caa6ab1 | 6312 | gfc_expr *init_exp; |
6313 | /* Arrays are not initialized using the default initializer of | |
6314 | their elements. Therefore only check if a default | |
6315 | initializer is available when the result is scalar. */ | |
36d310d0 | 6316 | init_exp = rsym->as ? NULL |
6317 | : gfc_generate_initializer (&rsym->ts, true); | |
1caa6ab1 | 6318 | if (init_exp) |
6319 | { | |
6320 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6321 | gfc_free_expr (init_exp); | |
6322 | gfc_add_expr_to_block (&init, tmp); | |
6323 | } | |
6324 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6325 | { | |
6326 | rank = rsym->as ? rsym->as->rank : 0; | |
6327 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6328 | rank); | |
6329 | gfc_prepend_expr_to_block (&body, tmp); | |
6330 | } | |
53169279 | 6331 | } |
5176859a | 6332 | } |
e50e62f5 | 6333 | |
1caa6ab1 | 6334 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6335 | { |
6336 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 6337 | if (warn_return_type && sym == sym->result) |
4166acc7 | 6338 | gfc_warning (OPT_Wreturn_type, |
6339 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6340 | sym->name, &sym->declared_at); |
90a4a5a6 | 6341 | if (warn_return_type) |
6342 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 6343 | } |
1caa6ab1 | 6344 | if (result != NULL_TREE) |
89ac8ba1 | 6345 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6346 | } |
89ac8ba1 | 6347 | |
6348 | gfc_init_block (&cleanup); | |
6349 | ||
6350 | /* Reset recursion-check variable. */ | |
6351 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6352 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6353 | { |
89ac8ba1 | 6354 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
6355 | recurcheckvar = NULL; | |
e50e62f5 | 6356 | } |
2294b616 | 6357 | |
d566c3e0 | 6358 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6359 | if (ieee) | |
d7333535 | 6360 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6361 | |
89ac8ba1 | 6362 | /* Finish the function body and add init and cleanup code. */ |
6363 | tmp = gfc_finish_block (&body); | |
6364 | gfc_start_wrapped_block (&try_block, tmp); | |
6365 | /* Add code to create and cleanup arrays. */ | |
6366 | gfc_trans_deferred_vars (sym, &try_block); | |
6367 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6368 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6369 | |
6370 | /* Add all the decls we created during processing. */ | |
267f3c67 | 6371 | decl = nreverse (saved_function_decls); |
4ee9c684 | 6372 | while (decl) |
6373 | { | |
6374 | tree next; | |
6375 | ||
1767a056 | 6376 | next = DECL_CHAIN (decl); |
6377 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6378 | pushdecl (decl); |
4ee9c684 | 6379 | decl = next; |
6380 | } | |
6381 | saved_function_decls = NULL_TREE; | |
6382 | ||
89ac8ba1 | 6383 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6384 | decl = getdecls (); |
4ee9c684 | 6385 | |
6386 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6387 | poplevel (1, 1); |
4ee9c684 | 6388 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6389 | ||
e5004242 | 6390 | DECL_SAVED_TREE (fndecl) |
6391 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6392 | DECL_INITIAL (fndecl)); | |
6393 | ||
9579733e | 6394 | if (nonlocal_dummy_decls) |
6395 | { | |
6396 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6397 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
431205b7 | 6398 | delete nonlocal_dummy_decl_pset; |
9579733e | 6399 | nonlocal_dummy_decls = NULL; |
6400 | nonlocal_dummy_decl_pset = NULL; | |
6401 | } | |
6402 | ||
4ee9c684 | 6403 | /* Output the GENERIC tree. */ |
6404 | dump_function (TDI_original, fndecl); | |
6405 | ||
6406 | /* Store the end of the function, so that we get good line number | |
6407 | info for the epilogue. */ | |
6408 | cfun->function_end_locus = input_location; | |
6409 | ||
6410 | /* We're leaving the context of this function, so zap cfun. | |
6411 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6412 | tree_rest_of_compilation. */ | |
87d4aa85 | 6413 | set_cfun (NULL); |
4ee9c684 | 6414 | |
6415 | if (old_context) | |
6416 | { | |
6417 | pop_function_context (); | |
6418 | saved_function_decls = saved_parent_function_decls; | |
6419 | } | |
6420 | current_function_decl = old_context; | |
6421 | ||
1f7747bd | 6422 | if (decl_function_context (fndecl)) |
6423 | { | |
6424 | /* Register this function with cgraph just far enough to get it | |
6425 | added to our parent's nested function list. | |
6426 | If there are static coarrays in this function, the nested _caf_init | |
6427 | function has already called cgraph_create_node, which also created | |
6428 | the cgraph node for this function. */ | |
4fe73152 | 6429 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
0d565f19 | 6430 | (void) cgraph_node::get_create (fndecl); |
1f7747bd | 6431 | } |
4ee9c684 | 6432 | else |
35ee1c66 | 6433 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6434 | |
6435 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6436 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6437 | |
6438 | if (sym->attr.is_main_program) | |
6439 | create_main_function (fndecl); | |
89ac8ba1 | 6440 | |
6441 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6442 | } |
6443 | ||
7257a5d2 | 6444 | |
4ee9c684 | 6445 | void |
6446 | gfc_generate_constructors (void) | |
6447 | { | |
22d678e8 | 6448 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6449 | #if 0 |
6450 | tree fnname; | |
6451 | tree type; | |
6452 | tree fndecl; | |
6453 | tree decl; | |
6454 | tree tmp; | |
6455 | ||
6456 | if (gfc_static_ctors == NULL_TREE) | |
6457 | return; | |
6458 | ||
db85cc4f | 6459 | fnname = get_file_function_name ("I"); |
e1036019 | 6460 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6461 | |
e60a6f7b | 6462 | fndecl = build_decl (input_location, |
6463 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6464 | TREE_PUBLIC (fndecl) = 1; |
6465 | ||
e60a6f7b | 6466 | decl = build_decl (input_location, |
6467 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6468 | DECL_ARTIFICIAL (decl) = 1; |
6469 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6470 | DECL_CONTEXT (decl) = fndecl; |
6471 | DECL_RESULT (fndecl) = decl; | |
6472 | ||
6473 | pushdecl (fndecl); | |
6474 | ||
6475 | current_function_decl = fndecl; | |
6476 | ||
b2c4af5e | 6477 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6478 | |
b2c4af5e | 6479 | make_decl_rtl (fndecl); |
4ee9c684 | 6480 | |
00cf115c | 6481 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6482 | |
cde2be84 | 6483 | pushlevel (); |
4ee9c684 | 6484 | |
6485 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6486 | { | |
389dd41b | 6487 | tmp = build_call_expr_loc (input_location, |
6488 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6489 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6490 | } |
6491 | ||
e5004242 | 6492 | decl = getdecls (); |
cde2be84 | 6493 | poplevel (1, 1); |
4ee9c684 | 6494 | |
6495 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6496 | DECL_SAVED_TREE (fndecl) |
6497 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6498 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6499 | |
6500 | free_after_parsing (cfun); | |
6501 | free_after_compilation (cfun); | |
6502 | ||
6148a911 | 6503 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6504 | |
6505 | current_function_decl = NULL_TREE; | |
6506 | #endif | |
6507 | } | |
6508 | ||
9ec7c303 | 6509 | /* Translates a BLOCK DATA program unit. This means emitting the |
6510 | commons contained therein plus their initializations. We also emit | |
6511 | a globally visible symbol to make sure that each BLOCK DATA program | |
6512 | unit remains unique. */ | |
6513 | ||
6514 | void | |
6515 | gfc_generate_block_data (gfc_namespace * ns) | |
6516 | { | |
6517 | tree decl; | |
6518 | tree id; | |
6519 | ||
b31f705b | 6520 | /* Tell the backend the source location of the block data. */ |
6521 | if (ns->proc_name) | |
6522 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6523 | else | |
6524 | gfc_set_backend_locus (&gfc_current_locus); | |
6525 | ||
6526 | /* Process the DATA statements. */ | |
9ec7c303 | 6527 | gfc_trans_common (ns); |
6528 | ||
b31f705b | 6529 | /* Create a global symbol with the mane of the block data. This is to |
6530 | generate linker errors if the same name is used twice. It is never | |
6531 | really used. */ | |
9ec7c303 | 6532 | if (ns->proc_name) |
6533 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6534 | else | |
6535 | id = get_identifier ("__BLOCK_DATA__"); | |
6536 | ||
e60a6f7b | 6537 | decl = build_decl (input_location, |
6538 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6539 | TREE_PUBLIC (decl) = 1; |
6540 | TREE_STATIC (decl) = 1; | |
df4d540f | 6541 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6542 | |
6543 | pushdecl (decl); | |
6544 | rest_of_decl_compilation (decl, 1, 0); | |
6545 | } | |
6546 | ||
b549d2a5 | 6547 | |
6a7084d7 | 6548 | /* Process the local variables of a BLOCK construct. */ |
6549 | ||
6550 | void | |
3c82e013 | 6551 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6552 | { |
6553 | tree decl; | |
6554 | ||
6555 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 6556 | has_coarray_vars = false; |
6557 | ||
6a7084d7 | 6558 | generate_local_vars (ns); |
6559 | ||
4fe73152 | 6560 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6561 | generate_coarray_init (ns); |
6562 | ||
267f3c67 | 6563 | decl = nreverse (saved_local_decls); |
6a7084d7 | 6564 | while (decl) |
6565 | { | |
6566 | tree next; | |
6567 | ||
1767a056 | 6568 | next = DECL_CHAIN (decl); |
6569 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6570 | pushdecl (decl); |
6571 | decl = next; | |
6572 | } | |
6573 | saved_local_decls = NULL_TREE; | |
6574 | } | |
6575 | ||
6576 | ||
4ee9c684 | 6577 | #include "gt-fortran-trans-decl.h" |