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4ee9c684 | 1 | /* Backend function setup |
aad93da1 | 2 | Copyright (C) 2002-2017 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
4cba6f60 | 26 | #include "target.h" |
27 | #include "function.h" | |
28 | #include "tree.h" | |
dc8078a3 | 29 | #include "gfortran.h" |
4cba6f60 | 30 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
31 | #include "trans.h" | |
32 | #include "stringpool.h" | |
33 | #include "cgraph.h" | |
b20a8bb4 | 34 | #include "fold-const.h" |
9ed99284 | 35 | #include "stor-layout.h" |
36 | #include "varasm.h" | |
37 | #include "attribs.h" | |
930c75f4 | 38 | #include "dumpfile.h" |
7cbc820e | 39 | #include "toplev.h" /* For announce_function. */ |
df4d540f | 40 | #include "debug.h" |
126387b5 | 41 | #include "constructor.h" |
4ee9c684 | 42 | #include "trans-types.h" |
43 | #include "trans-array.h" | |
44 | #include "trans-const.h" | |
45 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
46 | #include "trans-stmt.h" | |
7c1a9598 | 47 | #include "gomp-constants.h" |
1ec957b0 | 48 | #include "gimplify.h" |
4ee9c684 | 49 | |
50 | #define MAX_LABEL_VALUE 99999 | |
51 | ||
52 | ||
53 | /* Holds the result of the function if no result variable specified. */ | |
54 | ||
55 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 56 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 57 | |
4ee9c684 | 58 | |
59 | /* Holds the variable DECLs for the current function. */ | |
60 | ||
d4163395 | 61 | static GTY(()) tree saved_function_decls; |
62 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 63 | |
431205b7 | 64 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
9579733e | 65 | static GTY(()) tree nonlocal_dummy_decls; |
4ee9c684 | 66 | |
6a7084d7 | 67 | /* Holds the variable DECLs that are locals. */ |
68 | ||
69 | static GTY(()) tree saved_local_decls; | |
70 | ||
4ee9c684 | 71 | /* The namespace of the module we're currently generating. Only used while |
72 | outputting decls for module variables. Do not rely on this being set. */ | |
73 | ||
74 | static gfc_namespace *module_namespace; | |
75 | ||
89ac8ba1 | 76 | /* The currently processed procedure symbol. */ |
77 | static gfc_symbol* current_procedure_symbol = NULL; | |
78 | ||
3adf245a | 79 | /* The currently processed module. */ |
80 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 81 | |
a961ca30 | 82 | /* With -fcoarray=lib: For generating the registering call |
83 | of static coarrays. */ | |
84 | static bool has_coarray_vars; | |
85 | static stmtblock_t caf_init_block; | |
86 | ||
87 | ||
4ee9c684 | 88 | /* List of static constructor functions. */ |
89 | ||
90 | tree gfc_static_ctors; | |
91 | ||
92 | ||
d566c3e0 | 93 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
94 | static int seen_ieee_symbol; | |
95 | ||
4ee9c684 | 96 | /* Function declarations for builtin library functions. */ |
97 | ||
4ee9c684 | 98 | tree gfor_fndecl_pause_numeric; |
99 | tree gfor_fndecl_pause_string; | |
100 | tree gfor_fndecl_stop_numeric; | |
101 | tree gfor_fndecl_stop_string; | |
070cc790 | 102 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 103 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 104 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 105 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 106 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 107 | tree gfor_fndecl_os_error; |
50ad5fa2 | 108 | tree gfor_fndecl_generate_error; |
7257a5d2 | 109 | tree gfor_fndecl_set_args; |
8c84a5de | 110 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 111 | tree gfor_fndecl_set_options; |
15774a8b | 112 | tree gfor_fndecl_set_convert; |
f23886ab | 113 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 114 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 115 | tree gfor_fndecl_ctime; |
116 | tree gfor_fndecl_fdate; | |
dbc97b88 | 117 | tree gfor_fndecl_ttynam; |
4ee9c684 | 118 | tree gfor_fndecl_in_pack; |
119 | tree gfor_fndecl_in_unpack; | |
120 | tree gfor_fndecl_associated; | |
72ce5390 | 121 | tree gfor_fndecl_system_clock4; |
122 | tree gfor_fndecl_system_clock8; | |
d566c3e0 | 123 | tree gfor_fndecl_ieee_procedure_entry; |
124 | tree gfor_fndecl_ieee_procedure_exit; | |
4ee9c684 | 125 | |
126 | ||
70b5944a | 127 | /* Coarray run-time library function decls. */ |
128 | tree gfor_fndecl_caf_init; | |
129 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 130 | tree gfor_fndecl_caf_this_image; |
131 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 132 | tree gfor_fndecl_caf_register; |
d0d776fb | 133 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 134 | tree gfor_fndecl_caf_get; |
135 | tree gfor_fndecl_caf_send; | |
136 | tree gfor_fndecl_caf_sendget; | |
eee0cf09 | 137 | tree gfor_fndecl_caf_get_by_ref; |
138 | tree gfor_fndecl_caf_send_by_ref; | |
139 | tree gfor_fndecl_caf_sendget_by_ref; | |
70b5944a | 140 | tree gfor_fndecl_caf_sync_all; |
71cf3ae6 | 141 | tree gfor_fndecl_caf_sync_memory; |
70b5944a | 142 | tree gfor_fndecl_caf_sync_images; |
ba4d9b7e | 143 | tree gfor_fndecl_caf_stop_str; |
144 | tree gfor_fndecl_caf_stop_numeric; | |
70b5944a | 145 | tree gfor_fndecl_caf_error_stop; |
146 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 147 | tree gfor_fndecl_caf_atomic_def; |
148 | tree gfor_fndecl_caf_atomic_ref; | |
149 | tree gfor_fndecl_caf_atomic_cas; | |
150 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 151 | tree gfor_fndecl_caf_lock; |
152 | tree gfor_fndecl_caf_unlock; | |
bd47f0bc | 153 | tree gfor_fndecl_caf_event_post; |
154 | tree gfor_fndecl_caf_event_wait; | |
155 | tree gfor_fndecl_caf_event_query; | |
d9ca273e | 156 | tree gfor_fndecl_caf_fail_image; |
157 | tree gfor_fndecl_caf_failed_images; | |
158 | tree gfor_fndecl_caf_image_status; | |
159 | tree gfor_fndecl_caf_stopped_images; | |
52306a18 | 160 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 161 | tree gfor_fndecl_co_max; |
162 | tree gfor_fndecl_co_min; | |
e39efcef | 163 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 164 | tree gfor_fndecl_co_sum; |
3d2aa0e8 | 165 | tree gfor_fndecl_caf_is_present; |
70b5944a | 166 | |
70b5944a | 167 | |
4ee9c684 | 168 | /* Math functions. Many other math functions are handled in |
169 | trans-intrinsic.c. */ | |
170 | ||
920e54ef | 171 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 172 | tree gfor_fndecl_math_ishftc4; |
173 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 174 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 175 | |
176 | ||
177 | /* String functions. */ | |
178 | ||
4ee9c684 | 179 | tree gfor_fndecl_compare_string; |
180 | tree gfor_fndecl_concat_string; | |
181 | tree gfor_fndecl_string_len_trim; | |
182 | tree gfor_fndecl_string_index; | |
183 | tree gfor_fndecl_string_scan; | |
184 | tree gfor_fndecl_string_verify; | |
185 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 186 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 187 | tree gfor_fndecl_adjustl; |
188 | tree gfor_fndecl_adjustr; | |
b44437b9 | 189 | tree gfor_fndecl_select_string; |
40b806de | 190 | tree gfor_fndecl_compare_string_char4; |
191 | tree gfor_fndecl_concat_string_char4; | |
192 | tree gfor_fndecl_string_len_trim_char4; | |
193 | tree gfor_fndecl_string_index_char4; | |
194 | tree gfor_fndecl_string_scan_char4; | |
195 | tree gfor_fndecl_string_verify_char4; | |
196 | tree gfor_fndecl_string_trim_char4; | |
197 | tree gfor_fndecl_string_minmax_char4; | |
198 | tree gfor_fndecl_adjustl_char4; | |
199 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 200 | tree gfor_fndecl_select_string_char4; |
201 | ||
202 | ||
203 | /* Conversion between character kinds. */ | |
204 | tree gfor_fndecl_convert_char1_to_char4; | |
205 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 206 | |
207 | ||
208 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 209 | tree gfor_fndecl_size0; |
210 | tree gfor_fndecl_size1; | |
9b057c29 | 211 | tree gfor_fndecl_iargc; |
4ee9c684 | 212 | |
59e2a584 | 213 | /* Intrinsic functions implemented in Fortran. */ |
214 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 215 | tree gfor_fndecl_si_kind; |
216 | tree gfor_fndecl_sr_kind; | |
217 | ||
4e8e57b0 | 218 | /* BLAS gemm functions. */ |
219 | tree gfor_fndecl_sgemm; | |
220 | tree gfor_fndecl_dgemm; | |
221 | tree gfor_fndecl_cgemm; | |
222 | tree gfor_fndecl_zgemm; | |
223 | ||
4ee9c684 | 224 | |
225 | static void | |
226 | gfc_add_decl_to_parent_function (tree decl) | |
227 | { | |
22d678e8 | 228 | gcc_assert (decl); |
4ee9c684 | 229 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
230 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 231 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 232 | saved_parent_function_decls = decl; |
233 | } | |
234 | ||
235 | void | |
236 | gfc_add_decl_to_function (tree decl) | |
237 | { | |
22d678e8 | 238 | gcc_assert (decl); |
4ee9c684 | 239 | TREE_USED (decl) = 1; |
240 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 241 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 242 | saved_function_decls = decl; |
243 | } | |
244 | ||
6a7084d7 | 245 | static void |
246 | add_decl_as_local (tree decl) | |
247 | { | |
248 | gcc_assert (decl); | |
249 | TREE_USED (decl) = 1; | |
250 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 251 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 252 | saved_local_decls = decl; |
253 | } | |
254 | ||
4ee9c684 | 255 | |
b797d6d3 | 256 | /* Build a backend label declaration. Set TREE_USED for named labels. |
257 | The context of the label is always the current_function_decl. All | |
258 | labels are marked artificial. */ | |
4ee9c684 | 259 | |
260 | tree | |
261 | gfc_build_label_decl (tree label_id) | |
262 | { | |
263 | /* 2^32 temporaries should be enough. */ | |
264 | static unsigned int tmp_num = 1; | |
265 | tree label_decl; | |
266 | char *label_name; | |
267 | ||
268 | if (label_id == NULL_TREE) | |
269 | { | |
270 | /* Build an internal label name. */ | |
271 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
272 | label_id = get_identifier (label_name); | |
273 | } | |
274 | else | |
275 | label_name = NULL; | |
276 | ||
277 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 278 | label_decl = build_decl (input_location, |
279 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 280 | DECL_CONTEXT (label_decl) = current_function_decl; |
adc78298 | 281 | SET_DECL_MODE (label_decl, VOIDmode); |
4ee9c684 | 282 | |
b797d6d3 | 283 | /* We always define the label as used, even if the original source |
284 | file never references the label. We don't want all kinds of | |
285 | spurious warnings for old-style Fortran code with too many | |
286 | labels. */ | |
287 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 288 | |
b797d6d3 | 289 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 290 | return label_decl; |
291 | } | |
292 | ||
293 | ||
b31f705b | 294 | /* Set the backend source location of a decl. */ |
295 | ||
296 | void | |
297 | gfc_set_decl_location (tree decl, locus * loc) | |
298 | { | |
b31f705b | 299 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 300 | } |
301 | ||
302 | ||
4ee9c684 | 303 | /* Return the backend label declaration for a given label structure, |
304 | or create it if it doesn't exist yet. */ | |
305 | ||
306 | tree | |
307 | gfc_get_label_decl (gfc_st_label * lp) | |
308 | { | |
4ee9c684 | 309 | if (lp->backend_decl) |
310 | return lp->backend_decl; | |
311 | else | |
312 | { | |
313 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
314 | tree label_decl; | |
315 | ||
316 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 317 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 318 | |
319 | /* Build a mangled name for the label. */ | |
320 | sprintf (label_name, "__label_%.6d", lp->value); | |
321 | ||
322 | /* Build the LABEL_DECL node. */ | |
323 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
324 | ||
325 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 326 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 327 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 328 | else |
329 | DECL_ARTIFICIAL (label_decl) = 1; | |
330 | ||
331 | /* Store the label in the label list and return the LABEL_DECL. */ | |
332 | lp->backend_decl = label_decl; | |
333 | return label_decl; | |
334 | } | |
335 | } | |
336 | ||
337 | ||
338 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
339 | ||
340 | static tree | |
341 | gfc_sym_identifier (gfc_symbol * sym) | |
342 | { | |
0509d0ee | 343 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
344 | return (get_identifier ("MAIN__")); | |
345 | else | |
346 | return (get_identifier (sym->name)); | |
4ee9c684 | 347 | } |
348 | ||
349 | ||
350 | /* Construct mangled name from symbol name. */ | |
351 | ||
352 | static tree | |
353 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
354 | { | |
355 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
356 | ||
c5d33754 | 357 | /* Prevent the mangling of identifiers that have an assigned |
358 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 359 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
360 | return get_identifier (sym->binding_label); | |
a90fe829 | 361 | |
8b7e5587 | 362 | if (!sym->fn_result_spec) |
363 | { | |
364 | if (sym->module == NULL) | |
365 | return gfc_sym_identifier (sym); | |
366 | else | |
367 | { | |
368 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); | |
369 | return get_identifier (name); | |
370 | } | |
371 | } | |
4ee9c684 | 372 | else |
373 | { | |
8b7e5587 | 374 | /* This is an entity that is actually local to a module procedure |
375 | that appears in the result specification expression. Since | |
376 | sym->module will be a zero length string, we use ns->proc_name | |
377 | instead. */ | |
378 | if (sym->ns->proc_name && sym->ns->proc_name->module) | |
379 | { | |
380 | snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s", | |
381 | sym->ns->proc_name->module, | |
382 | sym->ns->proc_name->name, | |
383 | sym->name); | |
384 | return get_identifier (name); | |
385 | } | |
386 | else | |
387 | { | |
388 | snprintf (name, sizeof name, "__%s_PROC_%s", | |
389 | sym->ns->proc_name->name, sym->name); | |
390 | return get_identifier (name); | |
391 | } | |
4ee9c684 | 392 | } |
393 | } | |
394 | ||
395 | ||
396 | /* Construct mangled function name from symbol name. */ | |
397 | ||
398 | static tree | |
399 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
400 | { | |
401 | int has_underscore; | |
402 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
403 | ||
c5d33754 | 404 | /* It may be possible to simply use the binding label if it's |
405 | provided, and remove the other checks. Then we could use it | |
406 | for other things if we wished. */ | |
407 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 408 | sym->binding_label) |
c5d33754 | 409 | /* use the binding label rather than the mangled name */ |
410 | return get_identifier (sym->binding_label); | |
411 | ||
4b8eb6ca | 412 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 413 | || (sym->module != NULL && (sym->attr.external |
414 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 415 | && !sym->attr.module_procedure) |
4ee9c684 | 416 | { |
a2f97da7 | 417 | /* Main program is mangled into MAIN__. */ |
418 | if (sym->attr.is_main_program) | |
419 | return get_identifier ("MAIN__"); | |
420 | ||
421 | /* Intrinsic procedures are never mangled. */ | |
422 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 423 | return get_identifier (sym->name); |
424 | ||
829d7a08 | 425 | if (flag_underscoring) |
4ee9c684 | 426 | { |
427 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 428 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 429 | snprintf (name, sizeof name, "%s__", sym->name); |
430 | else | |
431 | snprintf (name, sizeof name, "%s_", sym->name); | |
432 | return get_identifier (name); | |
433 | } | |
434 | else | |
435 | return get_identifier (sym->name); | |
436 | } | |
437 | else | |
438 | { | |
f08a3f6f | 439 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 440 | return get_identifier (name); |
441 | } | |
442 | } | |
443 | ||
444 | ||
1236e28b | 445 | void |
446 | gfc_set_decl_assembler_name (tree decl, tree name) | |
447 | { | |
448 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
449 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
450 | } | |
451 | ||
452 | ||
5ed82495 | 453 | /* Returns true if a variable of specified size should go on the stack. */ |
454 | ||
455 | int | |
456 | gfc_can_put_var_on_stack (tree size) | |
457 | { | |
458 | unsigned HOST_WIDE_INT low; | |
459 | ||
460 | if (!INTEGER_CST_P (size)) | |
461 | return 0; | |
462 | ||
eb106faf | 463 | if (flag_max_stack_var_size < 0) |
5ed82495 | 464 | return 1; |
465 | ||
e1d65c9f | 466 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 467 | return 0; |
468 | ||
f9ae6f95 | 469 | low = TREE_INT_CST_LOW (size); |
eb106faf | 470 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 471 | return 0; |
472 | ||
473 | /* TODO: Set a per-function stack size limit. */ | |
474 | ||
475 | return 1; | |
476 | } | |
477 | ||
478 | ||
b7bf3f81 | 479 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
480 | an expression involving its corresponding pointer. There are | |
481 | 2 cases; one for variable size arrays, and one for everything else, | |
482 | because variable-sized arrays require one fewer level of | |
483 | indirection. */ | |
484 | ||
485 | static void | |
486 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
487 | { | |
488 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
489 | tree value; | |
490 | ||
491 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 492 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 493 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
494 | ptr_decl); | |
b7bf3f81 | 495 | |
496 | /* Check to see if we're dealing with a variable-sized array. */ | |
497 | if (sym->attr.dimension | |
a90fe829 | 498 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
499 | { | |
942043f8 | 500 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 501 | them here. */ |
502 | value = convert (TREE_TYPE (decl), ptr_decl); | |
503 | } | |
504 | else | |
505 | { | |
506 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
507 | ptr_decl); | |
389dd41b | 508 | value = build_fold_indirect_ref_loc (input_location, |
509 | ptr_decl); | |
b7bf3f81 | 510 | } |
511 | ||
512 | SET_DECL_VALUE_EXPR (decl, value); | |
513 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 514 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 515 | } |
516 | ||
517 | ||
b9c7fce7 | 518 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 519 | |
520 | static void | |
b9c7fce7 | 521 | gfc_finish_decl (tree decl) |
4ee9c684 | 522 | { |
b9c7fce7 | 523 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
524 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 525 | |
fe732a9b | 526 | if (!VAR_P (decl)) |
b9c7fce7 | 527 | return; |
4ee9c684 | 528 | |
b9c7fce7 | 529 | if (DECL_SIZE (decl) == NULL_TREE |
530 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
531 | layout_decl (decl, 0); | |
532 | ||
533 | /* A few consistency checks. */ | |
534 | /* A static variable with an incomplete type is an error if it is | |
535 | initialized. Also if it is not file scope. Otherwise, let it | |
536 | through, but if it is not `extern' then it may cause an error | |
537 | message later. */ | |
538 | /* An automatic variable with an incomplete type is an error. */ | |
539 | ||
540 | /* We should know the storage size. */ | |
541 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 542 | || (TREE_STATIC (decl) |
b9c7fce7 | 543 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
544 | : DECL_EXTERNAL (decl))); | |
545 | ||
546 | /* The storage size should be constant. */ | |
547 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
548 | || !DECL_SIZE (decl) | |
549 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 550 | } |
551 | ||
552 | ||
cf5f881f | 553 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
554 | ||
555 | void | |
556 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
557 | { | |
558 | if (!attr->dimension && !attr->codimension) | |
559 | { | |
560 | /* Handle scalar allocatable variables. */ | |
561 | if (attr->allocatable) | |
562 | { | |
563 | gfc_allocate_lang_decl (decl); | |
564 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
565 | } | |
566 | /* Handle scalar pointer variables. */ | |
567 | if (attr->pointer) | |
568 | { | |
569 | gfc_allocate_lang_decl (decl); | |
570 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
571 | } | |
572 | } | |
573 | } | |
574 | ||
575 | ||
4ee9c684 | 576 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
577 | ||
578 | static void | |
579 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
580 | { | |
c1977dbe | 581 | tree new_type; |
b549d2a5 | 582 | |
b7bf3f81 | 583 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 584 | if (sym->attr.cray_pointee) |
b7bf3f81 | 585 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 586 | |
845a9546 | 587 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
588 | This is the equivalent of the TARGET variables. | |
589 | We also need to set this if the variable is passed by reference in a | |
590 | CALL statement. */ | |
4ee9c684 | 591 | if (sym->attr.target) |
592 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 593 | |
4ee9c684 | 594 | /* If it wasn't used we wouldn't be getting it. */ |
595 | TREE_USED (decl) = 1; | |
596 | ||
7415cfe4 | 597 | if (sym->attr.flavor == FL_PARAMETER |
598 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
599 | TREE_READONLY (decl) = 1; | |
600 | ||
4ee9c684 | 601 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
602 | because this would add them to the current scope rather than the | |
603 | function scope. */ | |
604 | if (current_function_decl != NULL_TREE) | |
605 | { | |
7af6a4af | 606 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 607 | || sym->result == sym) |
4ee9c684 | 608 | gfc_add_decl_to_function (decl); |
6a7084d7 | 609 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
610 | /* This is a BLOCK construct. */ | |
611 | add_decl_as_local (decl); | |
4ee9c684 | 612 | else |
613 | gfc_add_decl_to_parent_function (decl); | |
614 | } | |
615 | ||
b7bf3f81 | 616 | if (sym->attr.cray_pointee) |
617 | return; | |
618 | ||
c5cb468c | 619 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 620 | { |
621 | /* We need to put variables that are bind(c) into the common | |
622 | segment of the object file, because this is what C would do. | |
623 | gfortran would typically put them in either the BSS or | |
624 | initialized data segments, and only mark them as common if | |
625 | they were part of common blocks. However, if they are not put | |
ea657963 | 626 | into common space, then C cannot initialize global Fortran |
c5d33754 | 627 | variables that it interoperates with and the draft says that |
628 | either Fortran or C should be able to initialize it (but not | |
629 | both, of course.) (J3/04-007, section 15.3). */ | |
630 | TREE_PUBLIC(decl) = 1; | |
631 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 632 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
633 | { | |
634 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
635 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
636 | } | |
c5d33754 | 637 | } |
a90fe829 | 638 | |
4ee9c684 | 639 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 640 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 641 | { |
642 | DECL_EXTERNAL (decl) = 1; | |
643 | TREE_PUBLIC (decl) = 1; | |
644 | } | |
8b7e5587 | 645 | else if (sym->fn_result_spec && !sym->ns->proc_name->module) |
646 | { | |
647 | ||
648 | if (sym->ns->proc_name->attr.if_source != IFSRC_DECL) | |
649 | DECL_EXTERNAL (decl) = 1; | |
650 | else | |
651 | TREE_STATIC (decl) = 1; | |
652 | ||
653 | TREE_PUBLIC (decl) = 1; | |
654 | } | |
4f0fae8e | 655 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 656 | { |
6b20224d | 657 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 658 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 659 | |
c8ddfd5d | 660 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 661 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 662 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
663 | { | |
664 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
665 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
666 | } | |
4ee9c684 | 667 | } |
668 | ||
f0d4969f | 669 | /* Derived types are a bit peculiar because of the possibility of |
670 | a default initializer; this must be applied each time the variable | |
671 | comes into scope it therefore need not be static. These variables | |
672 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 673 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 674 | SAVE_EXPLICIT. */ |
675 | if (!sym->attr.use_assoc | |
676 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 677 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 678 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 679 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 680 | TREE_STATIC (decl) = 1; |
ef814c81 | 681 | |
9f732c4e | 682 | /* If derived-type variables with DTIO procedures are not made static |
683 | some bits of code referencing them get optimized away. | |
684 | TODO Understand why this is so and fix it. */ | |
685 | if (!sym->attr.use_assoc | |
686 | && ((sym->ts.type == BT_DERIVED | |
687 | && sym->ts.u.derived->attr.has_dtio_procs) | |
688 | || (sym->ts.type == BT_CLASS | |
689 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
690 | TREE_STATIC (decl) = 1; | |
691 | ||
ef814c81 | 692 | if (sym->attr.volatile_) |
693 | { | |
ef814c81 | 694 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 695 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 696 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
697 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 698 | } |
ef814c81 | 699 | |
4ee9c684 | 700 | /* Keep variables larger than max-stack-var-size off stack. */ |
8e652fcf | 701 | if (!sym->ns->proc_name->attr.recursive && !sym->attr.automatic |
4ee9c684 | 702 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
a3f2c0e1 | 703 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
704 | /* Put variable length auto array pointers always into stack. */ | |
705 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
706 | || sym->attr.dimension == 0 | |
707 | || sym->as->type != AS_EXPLICIT | |
708 | || sym->attr.pointer | |
709 | || sym->attr.allocatable) | |
710 | && !DECL_ARTIFICIAL (decl)) | |
14eab729 | 711 | { |
712 | TREE_STATIC (decl) = 1; | |
713 | ||
714 | /* Because the size of this variable isn't known until now, we may have | |
715 | greedily added an initializer to this variable (in build_init_assign) | |
716 | even though the max-stack-var-size indicates the variable should be | |
717 | static. Therefore we rip out the automatic initializer here and | |
718 | replace it with a static one. */ | |
719 | gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); | |
720 | gfc_code *prev = NULL; | |
721 | gfc_code *code = sym->ns->code; | |
722 | while (code && code->op == EXEC_INIT_ASSIGN) | |
723 | { | |
724 | /* Look for an initializer meant for this symbol. */ | |
725 | if (code->expr1->symtree == st) | |
726 | { | |
727 | if (prev) | |
728 | prev->next = code->next; | |
729 | else | |
730 | sym->ns->code = code->next; | |
731 | ||
732 | break; | |
733 | } | |
734 | ||
735 | prev = code; | |
736 | code = code->next; | |
737 | } | |
738 | if (code && code->op == EXEC_INIT_ASSIGN) | |
739 | { | |
740 | /* Keep the init expression for a static initializer. */ | |
741 | sym->value = code->expr2; | |
742 | /* Cleanup the defunct code object, without freeing the init expr. */ | |
743 | code->expr2 = NULL; | |
744 | gfc_free_statement (code); | |
745 | free (code); | |
746 | } | |
747 | } | |
764f1175 | 748 | |
749 | /* Handle threadprivate variables. */ | |
9dda1f80 | 750 | if (sym->attr.threadprivate |
764f1175 | 751 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 752 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 753 | |
754 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 755 | } |
756 | ||
757 | ||
758 | /* Allocate the lang-specific part of a decl. */ | |
759 | ||
760 | void | |
761 | gfc_allocate_lang_decl (tree decl) | |
762 | { | |
cf5f881f | 763 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
764 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 765 | } |
766 | ||
767 | /* Remember a symbol to generate initialization/cleanup code at function | |
768 | entry/exit. */ | |
769 | ||
770 | static void | |
771 | gfc_defer_symbol_init (gfc_symbol * sym) | |
772 | { | |
773 | gfc_symbol *p; | |
774 | gfc_symbol *last; | |
775 | gfc_symbol *head; | |
776 | ||
777 | /* Don't add a symbol twice. */ | |
778 | if (sym->tlink) | |
779 | return; | |
780 | ||
781 | last = head = sym->ns->proc_name; | |
782 | p = last->tlink; | |
783 | ||
784 | /* Make sure that setup code for dummy variables which are used in the | |
785 | setup of other variables is generated first. */ | |
786 | if (sym->attr.dummy) | |
787 | { | |
788 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
789 | This is a circular list, so don't go past the head. */ | |
790 | while (p != head | |
791 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
792 | { | |
793 | last = p; | |
794 | p = p->tlink; | |
795 | } | |
796 | } | |
797 | /* Insert in between last and p. */ | |
798 | last->tlink = sym; | |
799 | sym->tlink = p; | |
800 | } | |
801 | ||
802 | ||
9f5a9ac5 | 803 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
804 | backend_decl for a module symbol, if it all ready exists. If the | |
805 | module gsymbol does not exist, it is created. If the symbol does | |
806 | not exist, it is added to the gsymbol namespace. Returns true if | |
807 | an existing backend_decl is found. */ | |
808 | ||
809 | bool | |
810 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
811 | { | |
812 | gfc_gsymbol *gsym; | |
813 | gfc_symbol *s; | |
814 | gfc_symtree *st; | |
815 | ||
816 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
817 | ||
818 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
819 | { | |
820 | st = NULL; | |
821 | s = NULL; | |
822 | ||
d7cd448a | 823 | /* Check for a symbol with the same name. */ |
9f5a9ac5 | 824 | if (gsym) |
825 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
826 | ||
827 | if (!s) | |
828 | { | |
829 | if (!gsym) | |
830 | { | |
831 | gsym = gfc_get_gsymbol (sym->module); | |
832 | gsym->type = GSYM_MODULE; | |
833 | gsym->ns = gfc_get_namespace (NULL, 0); | |
834 | } | |
835 | ||
836 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
837 | st->n.sym = sym; | |
838 | sym->refs++; | |
839 | } | |
d7cd448a | 840 | else if (gfc_fl_struct (sym->attr.flavor)) |
9f5a9ac5 | 841 | { |
c2958b6b | 842 | if (s && s->attr.flavor == FL_PROCEDURE) |
843 | { | |
844 | gfc_interface *intr; | |
845 | gcc_assert (s->attr.generic); | |
846 | for (intr = s->generic; intr; intr = intr->next) | |
d7cd448a | 847 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c2958b6b | 848 | { |
849 | s = intr->sym; | |
850 | break; | |
851 | } | |
852 | } | |
853 | ||
d7cd448a | 854 | /* Normally we can assume that s is a derived-type symbol since it |
855 | shares a name with the derived-type sym. However if sym is a | |
856 | STRUCTURE, it may in fact share a name with any other basic type | |
857 | variable. If s is in fact of derived type then we can continue | |
858 | looking for a duplicate type declaration. */ | |
859 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
860 | { | |
861 | s = s->ts.u.derived; | |
862 | } | |
863 | ||
864 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
865 | { | |
866 | if (s->attr.flavor == FL_UNION) | |
867 | s->backend_decl = gfc_get_union_type (s); | |
868 | else | |
869 | s->backend_decl = gfc_get_derived_type (s); | |
870 | } | |
9f5a9ac5 | 871 | gfc_copy_dt_decls_ifequal (s, sym, true); |
872 | return true; | |
873 | } | |
874 | else if (s->backend_decl) | |
875 | { | |
85ec2f13 | 876 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 877 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
878 | true); | |
879 | else if (sym->ts.type == BT_CHARACTER) | |
880 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
881 | sym->backend_decl = s->backend_decl; | |
882 | return true; | |
883 | } | |
884 | } | |
885 | return false; | |
886 | } | |
887 | ||
888 | ||
4ee9c684 | 889 | /* Create an array index type variable with function scope. */ |
890 | ||
891 | static tree | |
892 | create_index_var (const char * pfx, int nest) | |
893 | { | |
894 | tree decl; | |
895 | ||
896 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
897 | if (nest) | |
898 | gfc_add_decl_to_parent_function (decl); | |
899 | else | |
900 | gfc_add_decl_to_function (decl); | |
901 | return decl; | |
902 | } | |
903 | ||
904 | ||
905 | /* Create variables to hold all the non-constant bits of info for a | |
906 | descriptorless array. Remember these in the lang-specific part of the | |
907 | type. */ | |
908 | ||
909 | static void | |
910 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
911 | { | |
912 | tree type; | |
913 | int dim; | |
914 | int nest; | |
7b82374f | 915 | gfc_namespace* procns; |
c6793847 | 916 | symbol_attribute *array_attr; |
917 | gfc_array_spec *as; | |
918 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 919 | |
920 | type = TREE_TYPE (decl); | |
c6793847 | 921 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
922 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 923 | |
924 | /* We just use the descriptor, if there is one. */ | |
925 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
926 | return; | |
927 | ||
22d678e8 | 928 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 929 | procns = gfc_find_proc_namespace (sym->ns); |
930 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 931 | && !sym->attr.contained; |
932 | ||
c6793847 | 933 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
934 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 935 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
936 | { | |
937 | tree token; | |
ac36faf0 | 938 | tree token_type = build_qualified_type (pvoid_type_node, |
939 | TYPE_QUAL_RESTRICT); | |
940 | ||
941 | if (sym->module && (sym->attr.use_assoc | |
942 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
943 | { | |
944 | tree token_name | |
945 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
946 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
947 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
948 | token_type); | |
3adf245a | 949 | if (sym->attr.use_assoc) |
950 | DECL_EXTERNAL (token) = 1; | |
951 | else | |
952 | TREE_STATIC (token) = 1; | |
953 | ||
c8ddfd5d | 954 | TREE_PUBLIC (token) = 1; |
955 | ||
956 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
957 | { | |
958 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
959 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
960 | } | |
ac36faf0 | 961 | } |
962 | else | |
3adf245a | 963 | { |
964 | token = gfc_create_var_np (token_type, "caf_token"); | |
965 | TREE_STATIC (token) = 1; | |
966 | } | |
a961ca30 | 967 | |
a961ca30 | 968 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
969 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 970 | DECL_NONALIASED (token) = 1; |
971 | ||
972 | if (sym->module && !sym->attr.use_assoc) | |
973 | { | |
974 | pushdecl (token); | |
975 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
976 | gfc_module_add_decl (cur_module, token); | |
977 | } | |
13feeaec | 978 | else if (sym->attr.host_assoc |
979 | && TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
980 | != TRANSLATION_UNIT_DECL) | |
1dbd61ab | 981 | gfc_add_decl_to_parent_function (token); |
3adf245a | 982 | else |
983 | gfc_add_decl_to_function (token); | |
a961ca30 | 984 | } |
985 | ||
4ee9c684 | 986 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
987 | { | |
988 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 989 | { |
990 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
991 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
992 | } | |
9ca15c9b | 993 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 994 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 995 | && (as->type != AS_ASSUMED_SIZE |
996 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 997 | { |
998 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
999 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1000 | } | |
4ee9c684 | 1001 | |
1002 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 1003 | { |
1004 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
1005 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
1006 | } | |
4ee9c684 | 1007 | } |
076094b7 | 1008 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
1009 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
1010 | { | |
1011 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
1012 | { | |
1013 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1014 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1015 | } | |
1016 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
1017 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
1018 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
1019 | { | |
1020 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1021 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1022 | } | |
1023 | } | |
4ee9c684 | 1024 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
1025 | { | |
1026 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
1027 | "offset"); | |
86254bbf | 1028 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
1029 | ||
4ee9c684 | 1030 | if (nest) |
1031 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1032 | else | |
1033 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1034 | } | |
d4163395 | 1035 | |
1036 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 1037 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 1038 | { |
1039 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
1040 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
1041 | } | |
d4163395 | 1042 | |
1043 | if (POINTER_TYPE_P (type)) | |
1044 | { | |
1045 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
1046 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
1047 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
1048 | type = TREE_TYPE (type); | |
1049 | } | |
1050 | ||
1051 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
1052 | { | |
1053 | tree size, range; | |
1054 | ||
fd779e1d | 1055 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1056 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 1057 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
1058 | size); | |
1059 | TYPE_DOMAIN (type) = range; | |
1060 | layout_type (type); | |
1061 | } | |
6cf159a6 | 1062 | |
3fe3b7ca | 1063 | if (TYPE_NAME (type) != NULL_TREE && as->rank > 0 |
c6793847 | 1064 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
fe732a9b | 1065 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
6cf159a6 | 1066 | { |
1067 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1068 | ||
c6793847 | 1069 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 1070 | { |
1071 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1072 | gtype = TREE_TYPE (gtype); | |
1073 | } | |
1074 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1075 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
1076 | TYPE_NAME (type) = NULL_TREE; | |
1077 | } | |
1078 | ||
1079 | if (TYPE_NAME (type) == NULL_TREE) | |
1080 | { | |
1081 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
1082 | ||
c6793847 | 1083 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 1084 | { |
7130ec9d | 1085 | tree lbound, ubound; |
1086 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
1087 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
1088 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 1089 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 1090 | /* Ensure the bound variables aren't optimized out at -O0. |
1091 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 1092 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1093 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1094 | end up in debug info. */ | |
fe732a9b | 1095 | if (lbound |
1096 | && VAR_P (lbound) | |
1097 | && DECL_ARTIFICIAL (lbound) | |
1098 | && DECL_IGNORED_P (lbound)) | |
7130ec9d | 1099 | { |
1100 | if (DECL_NAME (lbound) | |
1101 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1102 | "lbound") != 0) | |
84bfaaeb | 1103 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 1104 | DECL_IGNORED_P (lbound) = 0; |
1105 | } | |
fe732a9b | 1106 | if (ubound |
1107 | && VAR_P (ubound) | |
1108 | && DECL_ARTIFICIAL (ubound) | |
1109 | && DECL_IGNORED_P (ubound)) | |
7130ec9d | 1110 | { |
1111 | if (DECL_NAME (ubound) | |
1112 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1113 | "ubound") != 0) | |
84bfaaeb | 1114 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1115 | DECL_IGNORED_P (ubound) = 0; |
1116 | } | |
6cf159a6 | 1117 | } |
e60a6f7b | 1118 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1119 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1120 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1121 | } | |
4ee9c684 | 1122 | } |
1123 | ||
1124 | ||
1125 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1126 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1127 | initialization, and construct full type information. */ |
1128 | ||
1129 | static tree | |
1130 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1131 | { | |
1132 | tree decl; | |
1133 | tree type; | |
1134 | gfc_array_spec *as; | |
c6793847 | 1135 | symbol_attribute *array_attr; |
4ee9c684 | 1136 | char *name; |
3d8dea5a | 1137 | gfc_packed packed; |
4ee9c684 | 1138 | int n; |
1139 | bool known_size; | |
c6793847 | 1140 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1141 | ||
1142 | /* Use the array as and attr. */ | |
1143 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1144 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1145 | ||
1146 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1147 | For class arrays the information if sym is an allocatable or pointer | |
1148 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1149 | too many reasons to be of use here). */ | |
1150 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1151 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1152 | || array_attr->allocatable | |
1153 | || (as && as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1154 | return dummy; |
1155 | ||
c6793847 | 1156 | /* Add to list of variables if not a fake result variable. |
1157 | These symbols are set on the symbol only, not on the class component. */ | |
4ee9c684 | 1158 | if (sym->attr.result || sym->attr.dummy) |
1159 | gfc_defer_symbol_init (sym); | |
1160 | ||
c6793847 | 1161 | /* For a class array the array descriptor is in the _data component, while |
1162 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1163 | descriptor. */ | |
1164 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1165 | : TREE_TYPE (dummy)); | |
1166 | /* type now is the array descriptor w/o any indirection. */ | |
22d678e8 | 1167 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1168 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1169 | |
f888a3fb | 1170 | /* Do we know the element size? */ |
4ee9c684 | 1171 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1172 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1173 | |
c6793847 | 1174 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1175 | { |
1176 | /* For descriptorless arrays with known element size the actual | |
1177 | argument is sufficient. */ | |
4ee9c684 | 1178 | gfc_build_qualified_array (dummy, sym); |
1179 | return dummy; | |
1180 | } | |
1181 | ||
4ee9c684 | 1182 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1183 | { | |
cb8e3560 | 1184 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1185 | packed = PACKED_NO; |
3d235846 | 1186 | |
1187 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1188 | are not repacked. */ | |
829d7a08 | 1189 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1190 | { |
1191 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1192 | packed = PACKED_FULL; |
4ee9c684 | 1193 | } |
1194 | else | |
1195 | { | |
1196 | if (as->type == AS_EXPLICIT) | |
1197 | { | |
3d8dea5a | 1198 | packed = PACKED_FULL; |
4ee9c684 | 1199 | for (n = 0; n < as->rank; n++) |
1200 | { | |
1201 | if (!(as->upper[n] | |
1202 | && as->lower[n] | |
1203 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1204 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1205 | { |
1206 | packed = PACKED_PARTIAL; | |
1207 | break; | |
1208 | } | |
4ee9c684 | 1209 | } |
1210 | } | |
1211 | else | |
3d8dea5a | 1212 | packed = PACKED_PARTIAL; |
4ee9c684 | 1213 | } |
1214 | ||
c6793847 | 1215 | /* For classarrays the element type is required, but |
1216 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1217 | type = is_classarray ? gfc_get_element_type (type) | |
1218 | : gfc_typenode_for_spec (&sym->ts); | |
1219 | type = gfc_get_nodesc_array_type (type, as, packed, | |
e1b3b79b | 1220 | !sym->attr.target); |
4ee9c684 | 1221 | } |
1222 | else | |
1223 | { | |
1224 | /* We now have an expression for the element size, so create a fully | |
1225 | qualified type. Reset sym->backend decl or this will just return the | |
1226 | old type. */ | |
d95efb59 | 1227 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1228 | sym->backend_decl = NULL_TREE; |
1229 | type = gfc_sym_type (sym); | |
3d8dea5a | 1230 | packed = PACKED_FULL; |
4ee9c684 | 1231 | } |
1232 | ||
1233 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1234 | decl = build_decl (input_location, |
1235 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1236 | |
1237 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1238 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1239 | TREE_PUBLIC (decl) = 0; |
1240 | TREE_STATIC (decl) = 0; | |
1241 | DECL_EXTERNAL (decl) = 0; | |
1242 | ||
a1f1e248 | 1243 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1244 | if (sym->attr.optional) | |
1245 | TREE_NO_WARNING (decl) = 1; | |
1246 | ||
4ee9c684 | 1247 | /* We should never get deferred shape arrays here. We used to because of |
1248 | frontend bugs. */ | |
c6793847 | 1249 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1250 | |
3d8dea5a | 1251 | if (packed == PACKED_PARTIAL) |
1252 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1253 | else if (packed == PACKED_FULL) | |
1254 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1255 | |
1256 | gfc_build_qualified_array (decl, sym); | |
1257 | ||
1258 | if (DECL_LANG_SPECIFIC (dummy)) | |
1259 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1260 | else | |
1261 | gfc_allocate_lang_decl (decl); | |
1262 | ||
1263 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1264 | ||
1265 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1266 | || sym->attr.contained) | |
1267 | gfc_add_decl_to_function (decl); | |
1268 | else | |
1269 | gfc_add_decl_to_parent_function (decl); | |
1270 | ||
1271 | return decl; | |
1272 | } | |
1273 | ||
9579733e | 1274 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1275 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1276 | pointing to the artificial variable for debug info purposes. */ | |
1277 | ||
1278 | static void | |
1279 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1280 | { | |
1281 | tree decl, dummy; | |
1282 | ||
1283 | if (! nonlocal_dummy_decl_pset) | |
431205b7 | 1284 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
9579733e | 1285 | |
431205b7 | 1286 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
9579733e | 1287 | return; |
1288 | ||
1289 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1290 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1291 | TREE_TYPE (sym->backend_decl)); |
1292 | DECL_ARTIFICIAL (decl) = 0; | |
1293 | TREE_USED (decl) = 1; | |
1294 | TREE_PUBLIC (decl) = 0; | |
1295 | TREE_STATIC (decl) = 0; | |
1296 | DECL_EXTERNAL (decl) = 0; | |
1297 | if (DECL_BY_REFERENCE (dummy)) | |
1298 | DECL_BY_REFERENCE (decl) = 1; | |
1299 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1300 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1301 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1302 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1303 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1304 | nonlocal_dummy_decls = decl; |
1305 | } | |
4ee9c684 | 1306 | |
1307 | /* Return a constant or a variable to use as a string length. Does not | |
1308 | add the decl to the current scope. */ | |
1309 | ||
1310 | static tree | |
1311 | gfc_create_string_length (gfc_symbol * sym) | |
1312 | { | |
eeebe20b | 1313 | gcc_assert (sym->ts.u.cl); |
1314 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1315 | |
eeebe20b | 1316 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1317 | { |
a4abf8a0 | 1318 | tree length; |
774bbd60 | 1319 | const char *name; |
4ee9c684 | 1320 | |
873f242d | 1321 | /* The string length variable shall be in static memory if it is either |
1322 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1323 | relevant is "len=:" - otherwise, it is either a constant length or | |
1324 | it is an automatic variable. */ | |
be125be0 | 1325 | bool static_length = sym->attr.save |
1326 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1327 | || (flag_max_stack_var_size == 0 |
873f242d | 1328 | && sym->ts.deferred && !sym->attr.dummy |
1329 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1330 | |
1331 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1332 | variables as some systems do not support the "." in the assembler name. | |
1333 | For nonstatic variables, the "." does not appear in assembler. */ | |
1334 | if (static_length) | |
1335 | { | |
1336 | if (sym->module) | |
1337 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1338 | sym->name); | |
1339 | else | |
1340 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1341 | } | |
1342 | else if (sym->module) | |
774bbd60 | 1343 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1344 | else | |
1345 | name = gfc_get_string (".%s", sym->name); | |
1346 | ||
e60a6f7b | 1347 | length = build_decl (input_location, |
1348 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1349 | gfc_charlen_type_node); |
4ee9c684 | 1350 | DECL_ARTIFICIAL (length) = 1; |
1351 | TREE_USED (length) = 1; | |
d4163395 | 1352 | if (sym->ns->proc_name->tlink != NULL) |
1353 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1354 | |
eeebe20b | 1355 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1356 | |
be125be0 | 1357 | if (static_length) |
774bbd60 | 1358 | TREE_STATIC (length) = 1; |
1359 | ||
1360 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1361 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1362 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1363 | } |
1364 | ||
eeebe20b | 1365 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1366 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1367 | } |
1368 | ||
c8f1568f | 1369 | /* If a variable is assigned a label, we add another two auxiliary |
1370 | variables. */ | |
1371 | ||
1372 | static void | |
1373 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1374 | { | |
1375 | tree addr; | |
1376 | tree length; | |
1377 | tree decl; | |
1378 | ||
1379 | gcc_assert (sym->backend_decl); | |
1380 | ||
1381 | decl = sym->backend_decl; | |
1382 | gfc_allocate_lang_decl (decl); | |
1383 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1384 | length = build_decl (input_location, |
1385 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1386 | gfc_charlen_type_node); |
e60a6f7b | 1387 | addr = build_decl (input_location, |
1388 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1389 | pvoid_type_node); |
1390 | gfc_finish_var_decl (length, sym); | |
1391 | gfc_finish_var_decl (addr, sym); | |
1392 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1393 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1394 | target label's address. Otherwise, value is the length of a format string | |
1395 | and ASSIGN_ADDR is its address. */ | |
1396 | if (TREE_STATIC (length)) | |
35bf1214 | 1397 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1398 | else |
1399 | gfc_defer_symbol_init (sym); | |
1400 | ||
1401 | GFC_DECL_STRING_LEN (decl) = length; | |
1402 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1403 | } | |
4ee9c684 | 1404 | |
36b0a1b0 | 1405 | |
1406 | static tree | |
1407 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1408 | { | |
1409 | unsigned id; | |
1410 | tree attr; | |
1411 | ||
1412 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1413 | if (sym_attr.ext_attr & (1 << id)) | |
1414 | { | |
1415 | attr = build_tree_list ( | |
1416 | get_identifier (ext_attr_list[id].middle_end_name), | |
1417 | NULL_TREE); | |
1418 | list = chainon (list, attr); | |
1419 | } | |
1420 | ||
44b49e6b | 1421 | if (sym_attr.omp_declare_target_link) |
1422 | list = tree_cons (get_identifier ("omp declare target link"), | |
1423 | NULL_TREE, list); | |
1424 | else if (sym_attr.omp_declare_target) | |
691447ab | 1425 | list = tree_cons (get_identifier ("omp declare target"), |
1426 | NULL_TREE, list); | |
1427 | ||
7c1a9598 | 1428 | if (sym_attr.oacc_function) |
1429 | { | |
1430 | tree dims = NULL_TREE; | |
1431 | int ix; | |
1432 | int level = sym_attr.oacc_function - 1; | |
1433 | ||
1434 | for (ix = GOMP_DIM_MAX; ix--;) | |
1435 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1436 | integer_zero_node, dims); | |
1437 | ||
1438 | list = tree_cons (get_identifier ("oacc function"), | |
1439 | dims, list); | |
1440 | } | |
1441 | ||
36b0a1b0 | 1442 | return list; |
1443 | } | |
1444 | ||
1445 | ||
802532b9 | 1446 | static void build_function_decl (gfc_symbol * sym, bool global); |
1447 | ||
1448 | ||
4ee9c684 | 1449 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1450 | exist. */ | |
1451 | ||
1452 | tree | |
1453 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1454 | { | |
1455 | tree decl; | |
1456 | tree length = NULL_TREE; | |
36b0a1b0 | 1457 | tree attributes; |
4ee9c684 | 1458 | int byref; |
cd2c99b8 | 1459 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1460 | bool fun_or_res; |
4ee9c684 | 1461 | |
0b5dc8b5 | 1462 | gcc_assert (sym->attr.referenced |
9e45357a | 1463 | || sym->attr.flavor == FL_PROCEDURE |
1464 | || sym->attr.use_assoc | |
4b8eb6ca | 1465 | || sym->attr.used_in_submodule |
9e45357a | 1466 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1467 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1468 | && sym->backend_decl)); | |
4ee9c684 | 1469 | |
ff70e443 | 1470 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1471 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1472 | else | |
1473 | byref = 0; | |
1474 | ||
09c509ed | 1475 | /* Make sure that the vtab for the declared type is completed. */ |
1476 | if (sym->ts.type == BT_CLASS) | |
1477 | { | |
50b4b37b | 1478 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1479 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1480 | { |
1481 | gfc_find_derived_vtab (c->ts.u.derived); | |
1482 | gfc_get_derived_type (sym->ts.u.derived); | |
1483 | } | |
09c509ed | 1484 | } |
1485 | ||
9d958d5b | 1486 | /* PDT parameterized array components and string_lengths must have the |
1487 | 'len' parameters substituted for the expressions appearing in the | |
1488 | declaration of the entity and memory allocated/deallocated. */ | |
1489 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1490 | && sym->param_list != NULL | |
1491 | && !(sym->attr.host_assoc || sym->attr.use_assoc || sym->attr.dummy)) | |
1492 | gfc_defer_symbol_init (sym); | |
1493 | ||
1494 | /* Dummy PDT 'len' parameters should be checked when they are explicit. */ | |
1495 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1496 | && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) | |
1497 | && sym->param_list != NULL | |
1498 | && sym->attr.dummy) | |
1499 | gfc_defer_symbol_init (sym); | |
1500 | ||
617125a6 | 1501 | /* All deferred character length procedures need to retain the backend |
1502 | decl, which is a pointer to the character length in the caller's | |
1503 | namespace and to declare a local character length. */ | |
1504 | if (!byref && sym->attr.function | |
1505 | && sym->ts.type == BT_CHARACTER | |
1506 | && sym->ts.deferred | |
1507 | && sym->ts.u.cl->passed_length == NULL | |
1508 | && sym->ts.u.cl->backend_decl | |
1509 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1510 | { | |
1511 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1512 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1513 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
617125a6 | 1514 | } |
1515 | ||
8b9eb27e | 1516 | fun_or_res = byref && (sym->attr.result |
1517 | || (sym->attr.function && sym->ts.deferred)); | |
1518 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1519 | { |
1520 | /* Return via extra parameter. */ | |
1521 | if (sym->attr.result && byref | |
1522 | && !sym->backend_decl) | |
1523 | { | |
1524 | sym->backend_decl = | |
1525 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1526 | /* For entry master function skip over the __entry |
1527 | argument. */ | |
1528 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1529 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1530 | } |
1531 | ||
1532 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1533 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1534 | |
47e6a59a | 1535 | if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS) |
1536 | GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1; | |
1537 | ||
4ee9c684 | 1538 | /* Create a character length variable. */ |
1539 | if (sym->ts.type == BT_CHARACTER) | |
1540 | { | |
617125a6 | 1541 | /* For a deferred dummy, make a new string length variable. */ |
1542 | if (sym->ts.deferred | |
1543 | && | |
1544 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1545 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1546 | ||
d1b1479f | 1547 | if (sym->ts.deferred && byref) |
617125a6 | 1548 | { |
d1b1479f | 1549 | /* The string length of a deferred char array is stored in the |
1550 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1551 | marked as a result. Exempt this variable from generating a | |
1552 | temporary for it. */ | |
1553 | if (sym->attr.result) | |
1554 | { | |
1555 | /* We need to insert a indirect ref for param decls. */ | |
1556 | if (sym->ts.u.cl->backend_decl | |
1557 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1558 | { |
1559 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
a4731200 | 1560 | sym->ts.u.cl->backend_decl = |
d1b1479f | 1561 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
a4731200 | 1562 | } |
ddcfeaf1 | 1563 | } |
d1b1479f | 1564 | /* For all other parameters make sure, that they are copied so |
1565 | that the value and any modifications are local to the routine | |
1566 | by generating a temporary variable. */ | |
1567 | else if (sym->attr.function | |
1568 | && sym->ts.u.cl->passed_length == NULL | |
1569 | && sym->ts.u.cl->backend_decl) | |
1570 | { | |
1571 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1572 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1573 | sym->ts.u.cl->backend_decl | |
1574 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1575 | else | |
a4731200 | 1576 | sym->ts.u.cl->backend_decl = NULL_TREE; |
d1b1479f | 1577 | } |
617125a6 | 1578 | } |
1579 | ||
eeebe20b | 1580 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1581 | length = gfc_create_string_length (sym); |
1582 | else | |
eeebe20b | 1583 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 1584 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1585 | { |
d95efb59 | 1586 | /* Add the string length to the same context as the symbol. */ |
1587 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1588 | gfc_add_decl_to_function (length); | |
1589 | else | |
1590 | gfc_add_decl_to_parent_function (length); | |
1591 | ||
1592 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1593 | DECL_CONTEXT (length)); | |
1594 | ||
d4163395 | 1595 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1596 | } |
4ee9c684 | 1597 | } |
1598 | ||
1599 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1600 | if ((sym->attr.dimension || sym->attr.codimension) |
1601 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1602 | { |
d95efb59 | 1603 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1604 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1605 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1606 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1607 | sym->backend_decl = decl; | |
4ee9c684 | 1608 | } |
1609 | ||
c6793847 | 1610 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1611 | some caller is expecting an expression to apply the component refs to. | |
1612 | Therefore the descriptor is only created and stored in | |
1613 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1614 | responsible to extract it from there, when the descriptor is | |
1615 | desired. */ | |
1616 | if (IS_CLASS_ARRAY (sym) | |
1617 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1618 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1619 | { | |
1620 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1621 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1622 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1623 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1624 | sym->backend_decl = decl; | |
1625 | } | |
1626 | ||
4ee9c684 | 1627 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1628 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1629 | { | |
1630 | gfc_add_assign_aux_vars (sym); | |
1631 | } | |
9579733e | 1632 | |
c6793847 | 1633 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
9579733e | 1634 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1635 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1636 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1637 | gfc_nonlocal_dummy_array_decl (sym); | |
1638 | ||
fd23cc08 | 1639 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1640 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1641 | ||
fd23cc08 | 1642 | return sym->backend_decl; |
4ee9c684 | 1643 | } |
1644 | ||
1645 | if (sym->backend_decl) | |
1646 | return sym->backend_decl; | |
1647 | ||
a25debd0 | 1648 | /* Special case for array-valued named constants from intrinsic |
1649 | procedures; those are inlined. */ | |
d566c3e0 | 1650 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1651 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1652 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1653 | intrinsic_array_parameter = true; |
1654 | ||
044bbd71 | 1655 | /* If use associated compilation, use the module |
094bca96 | 1656 | declaration. */ |
044bbd71 | 1657 | if ((sym->attr.flavor == FL_VARIABLE |
1658 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1659 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1660 | && !intrinsic_array_parameter |
1661 | && sym->module | |
1662 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1663 | { |
1664 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1665 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1666 | return sym->backend_decl; | |
1667 | } | |
7ea64434 | 1668 | |
4ee9c684 | 1669 | if (sym->attr.flavor == FL_PROCEDURE) |
1670 | { | |
77d080ca | 1671 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1672 | procedure pointers and procptr initialization targets. */ |
1650ce2f | 1673 | if (sym->attr.use_assoc |
1674 | || sym->attr.used_in_submodule | |
1675 | || sym->attr.intrinsic | |
77d080ca | 1676 | || sym->attr.if_source != IFSRC_DECL) |
802532b9 | 1677 | { |
1678 | decl = gfc_get_extern_function_decl (sym); | |
1679 | gfc_set_decl_location (decl, &sym->declared_at); | |
1680 | } | |
1681 | else | |
1682 | { | |
1683 | if (!sym->backend_decl) | |
1684 | build_function_decl (sym, false); | |
1685 | decl = sym->backend_decl; | |
1686 | } | |
4ee9c684 | 1687 | return decl; |
1688 | } | |
1689 | ||
1690 | if (sym->attr.intrinsic) | |
382ad5c3 | 1691 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1692 | |
1693 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1694 | type declaration. For associate names, the target character |
1695 | length is used. Set 'length' to a constant so that if the | |
8b7e5587 | 1696 | string length is a variable, it is not finished a second time. */ |
4ee9c684 | 1697 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1698 | { |
bb2fe503 | 1699 | if (sym->attr.associate_var |
1700 | && sym->ts.deferred | |
1701 | && sym->assoc && sym->assoc->target | |
1702 | && ((sym->assoc->target->expr_type == EXPR_VARIABLE | |
1703 | && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER) | |
1704 | || sym->assoc->target->expr_type == EXPR_FUNCTION)) | |
1705 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1706 | ||
c3639856 | 1707 | if (sym->attr.associate_var |
1708 | && sym->ts.u.cl->backend_decl | |
fe732a9b | 1709 | && VAR_P (sym->ts.u.cl->backend_decl)) |
c3639856 | 1710 | length = gfc_index_zero_node; |
1711 | else | |
1712 | length = gfc_create_string_length (sym); | |
1713 | } | |
4ee9c684 | 1714 | |
1715 | /* Create the decl for the variable. */ | |
e60a6f7b | 1716 | decl = build_decl (sym->declared_at.lb->location, |
1717 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1718 | |
1236e28b | 1719 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1720 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1721 | decl_attributes (&decl, attributes, 0); | |
1722 | ||
f888a3fb | 1723 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1724 | This is done here rather than in gfc_finish_var_decl because it |
1725 | is different for string length variables. */ | |
8b7e5587 | 1726 | if (sym->module || sym->fn_result_spec) |
df4d540f | 1727 | { |
1236e28b | 1728 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1729 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1730 | DECL_IGNORED_P (decl) = 1; |
1731 | } | |
4ee9c684 | 1732 | |
bc5663df | 1733 | if (sym->attr.select_type_temporary) |
1734 | { | |
1735 | DECL_ARTIFICIAL (decl) = 1; | |
1736 | DECL_IGNORED_P (decl) = 1; | |
1737 | } | |
1738 | ||
7a777e43 | 1739 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1740 | { |
1741 | /* Create variables to hold the non-constant bits of array info. */ | |
1742 | gfc_build_qualified_array (decl, sym); | |
1743 | ||
b3c3927c | 1744 | if (sym->attr.contiguous |
1745 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1746 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1747 | } | |
1748 | ||
0a96a7cc | 1749 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1750 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1751 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1752 | (CLASS_DATA (sym)->attr.dimension |
1753 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1754 | || (sym->ts.type == BT_DERIVED |
1755 | && (sym->ts.u.derived->attr.alloc_comp | |
1756 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1757 | && !sym->ns->proc_name->attr.is_main_program | |
1758 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1759 | /* This applies a derived type default initializer. */ |
1760 | || (sym->ts.type == BT_DERIVED | |
1761 | && sym->attr.save == SAVE_NONE | |
1762 | && !sym->attr.data | |
1763 | && !sym->attr.allocatable | |
1764 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1765 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1766 | gfc_defer_symbol_init (sym); |
2294b616 | 1767 | |
4d8caf18 | 1768 | /* Associate names can use the hidden string length variable |
1769 | of their associated target. */ | |
1770 | if (sym->ts.type == BT_CHARACTER | |
1771 | && TREE_CODE (length) != INTEGER_CST) | |
1772 | { | |
1773 | gfc_finish_var_decl (length, sym); | |
1774 | gcc_assert (!sym->value); | |
1775 | } | |
1776 | ||
4ee9c684 | 1777 | gfc_finish_var_decl (decl, sym); |
1778 | ||
bda1f152 | 1779 | if (sym->ts.type == BT_CHARACTER) |
4d8caf18 | 1780 | /* Character variables need special handling. */ |
1781 | gfc_allocate_lang_decl (decl); | |
1033248c | 1782 | |
47e6a59a | 1783 | if (sym->assoc && sym->attr.subref_array_pointer) |
1784 | sym->attr.pointer = 1; | |
1785 | ||
1786 | if (sym->attr.pointer && sym->attr.dimension | |
1787 | && !sym->ts.deferred | |
1788 | && !(sym->attr.select_type_temporary | |
1789 | && !sym->attr.subref_array_pointer)) | |
1790 | GFC_DECL_PTR_ARRAY_P (decl) = 1; | |
1033248c | 1791 | |
fd23cc08 | 1792 | if (sym->ts.type == BT_CLASS) |
47e6a59a | 1793 | GFC_DECL_CLASS(decl) = 1; |
fd23cc08 | 1794 | |
4ee9c684 | 1795 | sym->backend_decl = decl; |
1796 | ||
c8f1568f | 1797 | if (sym->attr.assign) |
21ebda4d | 1798 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1799 | |
cd2c99b8 | 1800 | if (intrinsic_array_parameter) |
1801 | { | |
1802 | TREE_STATIC (decl) = 1; | |
1803 | DECL_EXTERNAL (decl) = 0; | |
1804 | } | |
1805 | ||
1806 | if (TREE_STATIC (decl) | |
1807 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1808 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
14eab729 | 1809 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
a961ca30 | 1810 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1811 | && (flag_coarray != GFC_FCOARRAY_LIB |
0d3bb1de | 1812 | || !sym->attr.codimension || sym->attr.allocatable)) |
a545a8f8 | 1813 | { |
1814 | /* Add static initializer. For procedures, it is only needed if | |
1815 | SAVE is specified otherwise they need to be reinitialized | |
1816 | every time the procedure is entered. The TREE_STATIC is | |
1817 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1818 | |
bda1f152 | 1819 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1820 | TREE_TYPE (decl), sym->attr.dimension |
1821 | || (sym->attr.codimension | |
1822 | && sym->attr.allocatable), | |
1823 | sym->attr.pointer || sym->attr.allocatable | |
1824 | || sym->ts.type == BT_CLASS, | |
1825 | sym->attr.proc_pointer); | |
bda1f152 | 1826 | } |
1827 | ||
9579733e | 1828 | if (!TREE_STATIC (decl) |
1829 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1830 | && !sym->attr.pointer | |
1831 | && !sym->attr.allocatable | |
bc5663df | 1832 | && !sym->attr.proc_pointer |
1833 | && !sym->attr.select_type_temporary) | |
9579733e | 1834 | DECL_BY_REFERENCE (decl) = 1; |
1835 | ||
cf5f881f | 1836 | if (sym->attr.associate_var) |
1837 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1838 | ||
ebad7c3e | 1839 | if (sym->attr.vtab |
1840 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1841 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1842 | |
4ee9c684 | 1843 | return decl; |
1844 | } | |
1845 | ||
1846 | ||
dbe60343 | 1847 | /* Substitute a temporary variable in place of the real one. */ |
1848 | ||
1849 | void | |
1850 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1851 | { | |
1852 | save->attr = sym->attr; | |
1853 | save->decl = sym->backend_decl; | |
1854 | ||
1855 | gfc_clear_attr (&sym->attr); | |
1856 | sym->attr.referenced = 1; | |
1857 | sym->attr.flavor = FL_VARIABLE; | |
1858 | ||
1859 | sym->backend_decl = decl; | |
1860 | } | |
1861 | ||
1862 | ||
1863 | /* Restore the original variable. */ | |
1864 | ||
1865 | void | |
1866 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1867 | { | |
1868 | sym->attr = save->attr; | |
1869 | sym->backend_decl = save->decl; | |
1870 | } | |
1871 | ||
1872 | ||
cad0ddcf | 1873 | /* Declare a procedure pointer. */ |
1874 | ||
1875 | static tree | |
1876 | get_proc_pointer_decl (gfc_symbol *sym) | |
1877 | { | |
1878 | tree decl; | |
36b0a1b0 | 1879 | tree attributes; |
cad0ddcf | 1880 | |
1881 | decl = sym->backend_decl; | |
1882 | if (decl) | |
1883 | return decl; | |
1884 | ||
e60a6f7b | 1885 | decl = build_decl (input_location, |
1886 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1887 | build_pointer_type (gfc_get_function_type (sym))); |
1888 | ||
ea6f8461 | 1889 | if (sym->module) |
1890 | { | |
1891 | /* Apply name mangling. */ | |
1892 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1893 | if (sym->attr.use_assoc) | |
1894 | DECL_IGNORED_P (decl) = 1; | |
1895 | } | |
a90fe829 | 1896 | |
e72f979a | 1897 | if ((sym->ns->proc_name |
1898 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1899 | || sym->attr.contained) |
1900 | gfc_add_decl_to_function (decl); | |
cf269acc | 1901 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1902 | gfc_add_decl_to_parent_function (decl); |
1903 | ||
1904 | sym->backend_decl = decl; | |
1905 | ||
cf269acc | 1906 | /* If a variable is USE associated, it's always external. */ |
1907 | if (sym->attr.use_assoc) | |
1908 | { | |
1909 | DECL_EXTERNAL (decl) = 1; | |
1910 | TREE_PUBLIC (decl) = 1; | |
1911 | } | |
1912 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1913 | { | |
1914 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1915 | TREE_PUBLIC (decl) = 1; |
1916 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1917 | { | |
1918 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1919 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1920 | } | |
cf269acc | 1921 | TREE_STATIC (decl) = 1; |
1922 | } | |
1923 | ||
cad0ddcf | 1924 | if (!sym->attr.use_assoc |
1925 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1926 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1927 | TREE_STATIC (decl) = 1; | |
1928 | ||
1929 | if (TREE_STATIC (decl) && sym->value) | |
1930 | { | |
1931 | /* Add static initializer. */ | |
1932 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1933 | TREE_TYPE (decl), |
1934 | sym->attr.dimension, | |
1935 | false, true); | |
cad0ddcf | 1936 | } |
1937 | ||
8fb1768c | 1938 | /* Handle threadprivate procedure pointers. */ |
1939 | if (sym->attr.threadprivate | |
1940 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1941 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1942 | |
36b0a1b0 | 1943 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1944 | decl_attributes (&decl, attributes, 0); | |
1945 | ||
cad0ddcf | 1946 | return decl; |
1947 | } | |
1948 | ||
1949 | ||
4ee9c684 | 1950 | /* Get a basic decl for an external function. */ |
1951 | ||
1952 | tree | |
1953 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1954 | { | |
1955 | tree type; | |
1956 | tree fndecl; | |
36b0a1b0 | 1957 | tree attributes; |
4ee9c684 | 1958 | gfc_expr e; |
1959 | gfc_intrinsic_sym *isym; | |
1960 | gfc_expr argexpr; | |
17000b91 | 1961 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1962 | tree name; |
1963 | tree mangled_name; | |
83aeedb9 | 1964 | gfc_gsymbol *gsym; |
4ee9c684 | 1965 | |
1966 | if (sym->backend_decl) | |
1967 | return sym->backend_decl; | |
1968 | ||
1b716045 | 1969 | /* We should never be creating external decls for alternate entry points. |
1970 | The procedure may be an alternate entry point, but we don't want/need | |
1971 | to know that. */ | |
22d678e8 | 1972 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1973 | |
cad0ddcf | 1974 | if (sym->attr.proc_pointer) |
1975 | return get_proc_pointer_decl (sym); | |
1976 | ||
83aeedb9 | 1977 | /* See if this is an external procedure from the same file. If so, |
1978 | return the backend_decl. */ | |
da5c730d | 1979 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1980 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1981 | |
c8b913ab | 1982 | if (gsym && !gsym->defined) |
1983 | gsym = NULL; | |
1984 | ||
1985 | /* This can happen because of C binding. */ | |
1986 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1987 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1988 | goto module_sym; | |
1989 | ||
044bbd71 | 1990 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1991 | && !sym->backend_decl | |
1992 | && gsym && gsym->ns | |
1993 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1994 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1995 | { |
d896f9b3 | 1996 | if (!gsym->ns->proc_name->backend_decl) |
1997 | { | |
1998 | /* By construction, the external function cannot be | |
1999 | a contained procedure. */ | |
2000 | locus old_loc; | |
d896f9b3 | 2001 | |
4671339c | 2002 | gfc_save_backend_locus (&old_loc); |
9078126c | 2003 | push_cfun (NULL); |
d896f9b3 | 2004 | |
2005 | gfc_create_function_decl (gsym->ns, true); | |
2006 | ||
2007 | pop_cfun (); | |
4671339c | 2008 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 2009 | } |
2010 | ||
83aeedb9 | 2011 | /* If the namespace has entries, the proc_name is the |
2012 | entry master. Find the entry and use its backend_decl. | |
2013 | otherwise, use the proc_name backend_decl. */ | |
2014 | if (gsym->ns->entries) | |
2015 | { | |
2016 | gfc_entry_list *entry = gsym->ns->entries; | |
2017 | ||
2018 | for (; entry; entry = entry->next) | |
2019 | { | |
2020 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
2021 | { | |
2022 | sym->backend_decl = entry->sym->backend_decl; | |
2023 | break; | |
2024 | } | |
2025 | } | |
2026 | } | |
2027 | else | |
40c74b02 | 2028 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 2029 | |
2030 | if (sym->backend_decl) | |
40c74b02 | 2031 | { |
2032 | /* Avoid problems of double deallocation of the backend declaration | |
2033 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2034 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2035 | sym->attr.use_assoc = 0; | |
2036 | ||
2037 | return sym->backend_decl; | |
2038 | } | |
83aeedb9 | 2039 | } |
2040 | ||
7ea64434 | 2041 | /* See if this is a module procedure from the same file. If so, |
2042 | return the backend_decl. */ | |
2043 | if (sym->module) | |
2044 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2045 | ||
c8b913ab | 2046 | module_sym: |
2047 | if (gsym && gsym->ns | |
2048 | && (gsym->type == GSYM_MODULE | |
2049 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 2050 | { |
2051 | gfc_symbol *s; | |
2052 | ||
2053 | s = NULL; | |
c8b913ab | 2054 | if (gsym->type == GSYM_MODULE) |
2055 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2056 | else | |
2057 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2058 | ||
7ea64434 | 2059 | if (s && s->backend_decl) |
2060 | { | |
85ec2f13 | 2061 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2062 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2063 | true); | |
2064 | else if (sym->ts.type == BT_CHARACTER) | |
2065 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 2066 | sym->backend_decl = s->backend_decl; |
2067 | return sym->backend_decl; | |
2068 | } | |
2069 | } | |
2070 | ||
4ee9c684 | 2071 | if (sym->attr.intrinsic) |
2072 | { | |
2073 | /* Call the resolution function to get the actual name. This is | |
2074 | a nasty hack which relies on the resolution functions only looking | |
2075 | at the first argument. We pass NULL for the second argument | |
2076 | otherwise things like AINT get confused. */ | |
2077 | isym = gfc_find_function (sym->name); | |
22d678e8 | 2078 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 2079 | |
2080 | memset (&e, 0, sizeof (e)); | |
2081 | e.expr_type = EXPR_FUNCTION; | |
2082 | ||
2083 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 2084 | gcc_assert (isym->formal); |
4ee9c684 | 2085 | argexpr.ts = isym->formal->ts; |
2086 | ||
2087 | if (isym->formal->next == NULL) | |
2088 | isym->resolve.f1 (&e, &argexpr); | |
2089 | else | |
2090 | { | |
37e0271a | 2091 | if (isym->formal->next->next == NULL) |
2092 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2093 | else | |
2094 | { | |
7fe55cc9 | 2095 | if (isym->formal->next->next->next == NULL) |
2096 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2097 | else | |
2098 | { | |
2099 | /* All specific intrinsics take less than 5 arguments. */ | |
2100 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2101 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2102 | } | |
37e0271a | 2103 | } |
4ee9c684 | 2104 | } |
bdaed7d2 | 2105 | |
829d7a08 | 2106 | if (flag_f2c |
bdaed7d2 | 2107 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2108 | || e.ts.type == BT_COMPLEX)) | |
2109 | { | |
2110 | /* Specific which needs a different implementation if f2c | |
2111 | calling conventions are used. */ | |
17000b91 | 2112 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 2113 | } |
2114 | else | |
17000b91 | 2115 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 2116 | |
4ee9c684 | 2117 | name = get_identifier (s); |
2118 | mangled_name = name; | |
2119 | } | |
2120 | else | |
2121 | { | |
2122 | name = gfc_sym_identifier (sym); | |
2123 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2124 | } | |
2125 | ||
2126 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2127 | fndecl = build_decl (input_location, |
2128 | FUNCTION_DECL, name, type); | |
4ee9c684 | 2129 | |
e27454ee | 2130 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2131 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2132 | the opposite of declaring a function as static in C). */ |
e27454ee | 2133 | DECL_EXTERNAL (fndecl) = 1; |
2134 | TREE_PUBLIC (fndecl) = 1; | |
2135 | ||
1236e28b | 2136 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2137 | decl_attributes (&fndecl, attributes, 0); | |
2138 | ||
2139 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2140 | |
2141 | /* Set the context of this decl. */ | |
2142 | if (0 && sym->ns && sym->ns->proc_name) | |
2143 | { | |
2144 | /* TODO: Add external decls to the appropriate scope. */ | |
2145 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2146 | } | |
2147 | else | |
2148 | { | |
f888a3fb | 2149 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2150 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2151 | } | |
2152 | ||
4ee9c684 | 2153 | /* Set attributes for PURE functions. A call to PURE function in the |
2154 | Fortran 95 sense is both pure and without side effects in the C | |
2155 | sense. */ | |
bead0399 | 2156 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2157 | { |
4d4b9f0e | 2158 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2159 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2160 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2161 | parameters and don't use alternate returns (is this | |
2162 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2163 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2164 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2165 | } |
2166 | ||
6e27d773 | 2167 | /* Mark non-returning functions. */ |
2168 | if (sym->attr.noreturn) | |
2169 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2170 | ||
4ee9c684 | 2171 | sym->backend_decl = fndecl; |
2172 | ||
2173 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2174 | pushdecl_top_level (fndecl); | |
2175 | ||
15b28553 | 2176 | if (sym->formal_ns |
2177 | && sym->formal_ns->proc_name == sym | |
2178 | && sym->formal_ns->omp_declare_simd) | |
2179 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2180 | ||
4ee9c684 | 2181 | return fndecl; |
2182 | } | |
2183 | ||
2184 | ||
2185 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2186 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2187 | a master function with alternate entry points. */ | |
4ee9c684 | 2188 | |
1b716045 | 2189 | static void |
d896f9b3 | 2190 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2191 | { |
36b0a1b0 | 2192 | tree fndecl, type, attributes; |
4ee9c684 | 2193 | symbol_attribute attr; |
1b716045 | 2194 | tree result_decl; |
4ee9c684 | 2195 | gfc_formal_arglist *f; |
2196 | ||
76e207a9 | 2197 | bool module_procedure = sym->attr.module_procedure |
2198 | && sym->ns | |
2199 | && sym->ns->proc_name | |
2200 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2201 | ||
2202 | gcc_assert (!sym->attr.external || module_procedure); | |
4ee9c684 | 2203 | |
802532b9 | 2204 | if (sym->backend_decl) |
2205 | return; | |
2206 | ||
b31f705b | 2207 | /* Set the line and filename. sym->declared_at seems to point to the |
2208 | last statement for subroutines, but it'll do for now. */ | |
2209 | gfc_set_backend_locus (&sym->declared_at); | |
2210 | ||
4ee9c684 | 2211 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2212 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2213 | || DECL_FILE_SCOPE_P (current_function_decl) |
2214 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2215 | == NAMESPACE_DECL)); | |
4ee9c684 | 2216 | |
2217 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2218 | fndecl = build_decl (input_location, |
2219 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2220 | |
1236e28b | 2221 | attr = sym->attr; |
2222 | ||
e27454ee | 2223 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2224 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2225 | the opposite of declaring a function as static in C). */ |
e27454ee | 2226 | DECL_EXTERNAL (fndecl) = 0; |
2227 | ||
7d6b5754 | 2228 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2229 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2230 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2231 | && flag_module_private))) |
7d6b5754 | 2232 | sym->attr.access = ACCESS_PRIVATE; |
2233 | ||
e27454ee | 2234 | if (!current_function_decl |
c5cb468c | 2235 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2236 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2237 | || sym->attr.public_used)) | |
e27454ee | 2238 | TREE_PUBLIC (fndecl) = 1; |
2239 | ||
9e45357a | 2240 | if (sym->attr.referenced || sym->attr.entry_master) |
2241 | TREE_USED (fndecl) = 1; | |
2242 | ||
1236e28b | 2243 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2244 | decl_attributes (&fndecl, attributes, 0); | |
2245 | ||
4ee9c684 | 2246 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2247 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2248 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2249 | result_decl = NULL_TREE; |
2250 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2251 | if (attr.function) | |
2252 | { | |
2253 | if (gfc_return_by_reference (sym)) | |
2254 | type = void_type_node; | |
2255 | else | |
2256 | { | |
2257 | if (sym->result != sym) | |
2258 | result_decl = gfc_sym_identifier (sym->result); | |
2259 | ||
2260 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2261 | } | |
2262 | } | |
2263 | else | |
2264 | { | |
2265 | /* Look for alternate return placeholders. */ | |
2266 | int has_alternate_returns = 0; | |
6777213b | 2267 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2268 | { |
2269 | if (f->sym == NULL) | |
2270 | { | |
2271 | has_alternate_returns = 1; | |
2272 | break; | |
2273 | } | |
2274 | } | |
2275 | ||
2276 | if (has_alternate_returns) | |
2277 | type = integer_type_node; | |
2278 | else | |
2279 | type = void_type_node; | |
2280 | } | |
2281 | ||
e60a6f7b | 2282 | result_decl = build_decl (input_location, |
2283 | RESULT_DECL, result_decl, type); | |
540edea7 | 2284 | DECL_ARTIFICIAL (result_decl) = 1; |
2285 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2286 | DECL_CONTEXT (result_decl) = fndecl; |
2287 | DECL_RESULT (fndecl) = result_decl; | |
2288 | ||
2289 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2290 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2291 | |
4ee9c684 | 2292 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2293 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2294 | |
f888a3fb | 2295 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2296 | Fortran 95 sense is both pure and without side effects in the C |
2297 | sense. */ | |
bead0399 | 2298 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2299 | { |
be393645 | 2300 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2301 | including an alternate return. In that case it can also be |
231e961a | 2302 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2303 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2304 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2305 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2306 | } | |
2307 | ||
36b0a1b0 | 2308 | |
4ee9c684 | 2309 | /* Layout the function declaration and put it in the binding level |
2310 | of the current function. */ | |
d896f9b3 | 2311 | |
4c197fd0 | 2312 | if (global) |
d896f9b3 | 2313 | pushdecl_top_level (fndecl); |
2314 | else | |
2315 | pushdecl (fndecl); | |
1b716045 | 2316 | |
16a40513 | 2317 | /* Perform name mangling if this is a top level or module procedure. */ |
2318 | if (current_function_decl == NULL_TREE) | |
2319 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2320 | ||
1b716045 | 2321 | sym->backend_decl = fndecl; |
2322 | } | |
2323 | ||
2324 | ||
2325 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2326 | ||
2327 | static void | |
2328 | create_function_arglist (gfc_symbol * sym) | |
2329 | { | |
2330 | tree fndecl; | |
2331 | gfc_formal_arglist *f; | |
d4163395 | 2332 | tree typelist, hidden_typelist; |
2333 | tree arglist, hidden_arglist; | |
1b716045 | 2334 | tree type; |
2335 | tree parm; | |
2336 | ||
2337 | fndecl = sym->backend_decl; | |
2338 | ||
e4b2c26c | 2339 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2340 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2341 | arglist = NULL_TREE; |
d4163395 | 2342 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2343 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2344 | |
2345 | if (sym->attr.entry_master) | |
2346 | { | |
2347 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2348 | parm = build_decl (input_location, |
2349 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2350 | |
1b716045 | 2351 | DECL_CONTEXT (parm) = fndecl; |
2352 | DECL_ARG_TYPE (parm) = type; | |
2353 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2354 | gfc_finish_decl (parm); |
d95efb59 | 2355 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2356 | |
2357 | arglist = chainon (arglist, parm); | |
2358 | typelist = TREE_CHAIN (typelist); | |
2359 | } | |
2360 | ||
e4b2c26c | 2361 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2362 | { |
d4163395 | 2363 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2364 | |
e4b2c26c | 2365 | if (sym->ts.type == BT_CHARACTER) |
2366 | { | |
e4b2c26c | 2367 | /* Length of character result. */ |
d4163395 | 2368 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2369 | |
e60a6f7b | 2370 | length = build_decl (input_location, |
2371 | PARM_DECL, | |
e4b2c26c | 2372 | get_identifier (".__result"), |
d4163395 | 2373 | len_type); |
b345a09f | 2374 | if (POINTER_TYPE_P (len_type)) |
2375 | { | |
2376 | sym->ts.u.cl->passed_length = length; | |
2377 | TREE_USED (length) = 1; | |
2378 | } | |
2379 | else if (!sym->ts.u.cl->length) | |
e4b2c26c | 2380 | { |
eeebe20b | 2381 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2382 | TREE_USED (length) = 1; |
4ee9c684 | 2383 | } |
22d678e8 | 2384 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2385 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2386 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2387 | TREE_READONLY (length) = 1; |
b5b40b3f | 2388 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2389 | gfc_finish_decl (length); |
eeebe20b | 2390 | if (sym->ts.u.cl->backend_decl == NULL |
2391 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2392 | { |
2393 | gfc_symbol *arg; | |
2394 | tree backend_decl; | |
4ee9c684 | 2395 | |
eeebe20b | 2396 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2397 | { |
e60a6f7b | 2398 | tree len = build_decl (input_location, |
2399 | VAR_DECL, | |
d4163395 | 2400 | get_identifier ("..__result"), |
2401 | gfc_charlen_type_node); | |
2402 | DECL_ARTIFICIAL (len) = 1; | |
2403 | TREE_USED (len) = 1; | |
eeebe20b | 2404 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2405 | } |
4ee9c684 | 2406 | |
d4163395 | 2407 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2408 | arg = sym->result ? sym->result : sym; | |
2409 | backend_decl = arg->backend_decl; | |
2410 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2411 | type. */ | |
2412 | arg->backend_decl = NULL; | |
2413 | type = gfc_sym_type (arg); | |
2414 | arg->backend_decl = backend_decl; | |
2415 | type = build_reference_type (type); | |
2416 | } | |
2417 | } | |
4ee9c684 | 2418 | |
e60a6f7b | 2419 | parm = build_decl (input_location, |
2420 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2421 | |
d4163395 | 2422 | DECL_CONTEXT (parm) = fndecl; |
2423 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2424 | TREE_READONLY (parm) = 1; | |
2425 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2426 | gfc_finish_decl (parm); |
4ee9c684 | 2427 | |
d4163395 | 2428 | arglist = chainon (arglist, parm); |
2429 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2430 | |
d4163395 | 2431 | if (sym->ts.type == BT_CHARACTER) |
2432 | { | |
2433 | gfc_allocate_lang_decl (parm); | |
2434 | arglist = chainon (arglist, length); | |
e4b2c26c | 2435 | typelist = TREE_CHAIN (typelist); |
2436 | } | |
2437 | } | |
4ee9c684 | 2438 | |
d4163395 | 2439 | hidden_typelist = typelist; |
6777213b | 2440 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2441 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2442 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2443 | ||
6777213b | 2444 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2445 | { |
2446 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2447 | |
e4b2c26c | 2448 | /* Ignore alternate returns. */ |
2449 | if (f->sym == NULL) | |
2450 | continue; | |
4ee9c684 | 2451 | |
e4b2c26c | 2452 | type = TREE_VALUE (typelist); |
4ee9c684 | 2453 | |
296db1d1 | 2454 | if (f->sym->ts.type == BT_CHARACTER |
2455 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2456 | { |
2457 | tree len_type = TREE_VALUE (hidden_typelist); | |
2458 | tree length = NULL_TREE; | |
617125a6 | 2459 | if (!f->sym->ts.deferred) |
2460 | gcc_assert (len_type == gfc_charlen_type_node); | |
2461 | else | |
2462 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2463 | |
2464 | strcpy (&name[1], f->sym->name); | |
2465 | name[0] = '_'; | |
e60a6f7b | 2466 | length = build_decl (input_location, |
2467 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2468 | |
d4163395 | 2469 | hidden_arglist = chainon (hidden_arglist, length); |
2470 | DECL_CONTEXT (length) = fndecl; | |
2471 | DECL_ARTIFICIAL (length) = 1; | |
2472 | DECL_ARG_TYPE (length) = len_type; | |
2473 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2474 | gfc_finish_decl (length); |
4ee9c684 | 2475 | |
a4abf8a0 | 2476 | /* Remember the passed value. */ |
a90fe829 | 2477 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2478 | { |
2479 | /* This can happen if the same type is used for multiple | |
2480 | arguments. We need to copy cl as otherwise | |
2481 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2482 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2483 | } |
eeebe20b | 2484 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2485 | |
d4163395 | 2486 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2487 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2488 | { |
d4163395 | 2489 | TREE_USED (length) = 1; |
eeebe20b | 2490 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2491 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2492 | } |
2493 | ||
2494 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2495 | ||
eeebe20b | 2496 | if (f->sym->ts.u.cl->backend_decl == NULL |
2497 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2498 | { |
ddcfeaf1 | 2499 | if (POINTER_TYPE_P (len_type)) |
2500 | f->sym->ts.u.cl->backend_decl = | |
2501 | build_fold_indirect_ref_loc (input_location, length); | |
2502 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2503 | gfc_create_string_length (f->sym); |
2504 | ||
2505 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2506 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2507 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2508 | else | |
2509 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2510 | } |
4ee9c684 | 2511 | } |
532c2d79 | 2512 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2513 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2514 | Thus, we will use a hidden argument in that case. */ |
2515 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2516 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
d7cd448a | 2517 | && !gfc_bt_struct (f->sym->ts.type)) |
532c2d79 | 2518 | { |
2519 | tree tmp; | |
2520 | strcpy (&name[1], f->sym->name); | |
2521 | name[0] = '_'; | |
2522 | tmp = build_decl (input_location, | |
2523 | PARM_DECL, get_identifier (name), | |
2524 | boolean_type_node); | |
2525 | ||
2526 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2527 | DECL_CONTEXT (tmp) = fndecl; | |
2528 | DECL_ARTIFICIAL (tmp) = 1; | |
2529 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2530 | TREE_READONLY (tmp) = 1; | |
2531 | gfc_finish_decl (tmp); | |
2532 | } | |
4ee9c684 | 2533 | |
d4163395 | 2534 | /* For non-constant length array arguments, make sure they use |
2535 | a different type node from TYPE_ARG_TYPES type. */ | |
2536 | if (f->sym->attr.dimension | |
2537 | && type == TREE_VALUE (typelist) | |
2538 | && TREE_CODE (type) == POINTER_TYPE | |
2539 | && GFC_ARRAY_TYPE_P (type) | |
2540 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2541 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2542 | { | |
2543 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2544 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2545 | else | |
2546 | type = gfc_sym_type (f->sym); | |
2547 | } | |
2548 | ||
cad0ddcf | 2549 | if (f->sym->attr.proc_pointer) |
2550 | type = build_pointer_type (type); | |
2551 | ||
2364aa60 | 2552 | if (f->sym->attr.volatile_) |
2553 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2554 | ||
69b1505f | 2555 | /* Build the argument declaration. */ |
e60a6f7b | 2556 | parm = build_decl (input_location, |
2557 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2558 | |
2364aa60 | 2559 | if (f->sym->attr.volatile_) |
2560 | { | |
2561 | TREE_THIS_VOLATILE (parm) = 1; | |
2562 | TREE_SIDE_EFFECTS (parm) = 1; | |
2563 | } | |
2564 | ||
d4163395 | 2565 | /* Fill in arg stuff. */ |
2566 | DECL_CONTEXT (parm) = fndecl; | |
2567 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2568 | /* All implementation args except for VALUE are read-only. */ |
2569 | if (!f->sym->attr.value) | |
2570 | TREE_READONLY (parm) = 1; | |
98923a84 | 2571 | if (POINTER_TYPE_P (type) |
2572 | && (!f->sym->attr.proc_pointer | |
2573 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2574 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2575 | |
b9c7fce7 | 2576 | gfc_finish_decl (parm); |
cf5f881f | 2577 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2578 | |
2579 | f->sym->backend_decl = parm; | |
2580 | ||
7dce33fe | 2581 | /* Coarrays which are descriptorless or assumed-shape pass with |
2582 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2583 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2584 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2585 | && !f->sym->attr.allocatable) | |
2586 | || (f->sym->ts.type == BT_CLASS | |
2587 | && CLASS_DATA (f->sym)->attr.codimension | |
2588 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2589 | { |
2590 | tree caf_type; | |
2591 | tree token; | |
2592 | tree offset; | |
2593 | ||
2594 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2595 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2596 | caf_type = f->sym->ts.type == BT_CLASS |
2597 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2598 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2599 | |
85c94a64 | 2600 | token = build_decl (input_location, PARM_DECL, |
2601 | create_tmp_var_name ("caf_token"), | |
2602 | build_qualified_type (pvoid_type_node, | |
2603 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2604 | if ((f->sym->ts.type != BT_CLASS |
2605 | && f->sym->as->type != AS_DEFERRED) | |
2606 | || (f->sym->ts.type == BT_CLASS | |
2607 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2608 | { |
2609 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2610 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2611 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2612 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2613 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2614 | } | |
2615 | else | |
2616 | { | |
2617 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2618 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2619 | } | |
a90fe829 | 2620 | |
85c94a64 | 2621 | DECL_CONTEXT (token) = fndecl; |
2622 | DECL_ARTIFICIAL (token) = 1; | |
2623 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2624 | TREE_READONLY (token) = 1; | |
2625 | hidden_arglist = chainon (hidden_arglist, token); | |
2626 | gfc_finish_decl (token); | |
2627 | ||
85c94a64 | 2628 | offset = build_decl (input_location, PARM_DECL, |
2629 | create_tmp_var_name ("caf_offset"), | |
2630 | gfc_array_index_type); | |
2631 | ||
d44f2f7c | 2632 | if ((f->sym->ts.type != BT_CLASS |
2633 | && f->sym->as->type != AS_DEFERRED) | |
2634 | || (f->sym->ts.type == BT_CLASS | |
2635 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2636 | { |
2637 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2638 | == NULL_TREE); | |
2639 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2640 | } | |
2641 | else | |
2642 | { | |
2643 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2644 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2645 | } | |
85c94a64 | 2646 | DECL_CONTEXT (offset) = fndecl; |
2647 | DECL_ARTIFICIAL (offset) = 1; | |
2648 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2649 | TREE_READONLY (offset) = 1; | |
2650 | hidden_arglist = chainon (hidden_arglist, offset); | |
2651 | gfc_finish_decl (offset); | |
2652 | } | |
2653 | ||
d4163395 | 2654 | arglist = chainon (arglist, parm); |
e4b2c26c | 2655 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2656 | } |
e4b2c26c | 2657 | |
465e4a95 | 2658 | /* Add the hidden string length parameters, unless the procedure |
2659 | is bind(C). */ | |
2660 | if (!sym->attr.is_bind_c) | |
2661 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2662 | |
ebe27ea2 | 2663 | gcc_assert (hidden_typelist == NULL_TREE |
2664 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2665 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2666 | } |
e4b2c26c | 2667 | |
1b716045 | 2668 | /* Do the setup necessary before generating the body of a function. */ |
2669 | ||
2670 | static void | |
2671 | trans_function_start (gfc_symbol * sym) | |
2672 | { | |
2673 | tree fndecl; | |
2674 | ||
2675 | fndecl = sym->backend_decl; | |
2676 | ||
f888a3fb | 2677 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2678 | current_function_decl = fndecl; |
2679 | ||
f888a3fb | 2680 | /* Let the world know what we're about to do. */ |
1b716045 | 2681 | announce_function (fndecl); |
2682 | ||
16a40513 | 2683 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2684 | { |
f888a3fb | 2685 | /* Create RTL for function declaration. */ |
1b716045 | 2686 | rest_of_decl_compilation (fndecl, 1, 0); |
2687 | } | |
2688 | ||
f888a3fb | 2689 | /* Create RTL for function definition. */ |
1b716045 | 2690 | make_decl_rtl (fndecl); |
2691 | ||
00cf115c | 2692 | allocate_struct_function (fndecl, false); |
1b716045 | 2693 | |
f888a3fb | 2694 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2695 | pushlevel (); |
1b716045 | 2696 | } |
2697 | ||
2698 | /* Create thunks for alternate entry points. */ | |
2699 | ||
2700 | static void | |
d896f9b3 | 2701 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2702 | { |
2703 | gfc_formal_arglist *formal; | |
2704 | gfc_formal_arglist *thunk_formal; | |
2705 | gfc_entry_list *el; | |
2706 | gfc_symbol *thunk_sym; | |
2707 | stmtblock_t body; | |
2708 | tree thunk_fndecl; | |
1b716045 | 2709 | tree tmp; |
b31f705b | 2710 | locus old_loc; |
1b716045 | 2711 | |
2712 | /* This should always be a toplevel function. */ | |
22d678e8 | 2713 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2714 | |
4671339c | 2715 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2716 | for (el = ns->entries; el; el = el->next) |
2717 | { | |
f1f41a6c | 2718 | vec<tree, va_gc> *args = NULL; |
2719 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2720 | |
1b716045 | 2721 | thunk_sym = el->sym; |
a90fe829 | 2722 | |
d896f9b3 | 2723 | build_function_decl (thunk_sym, global); |
1b716045 | 2724 | create_function_arglist (thunk_sym); |
2725 | ||
2726 | trans_function_start (thunk_sym); | |
2727 | ||
2728 | thunk_fndecl = thunk_sym->backend_decl; | |
2729 | ||
e5004242 | 2730 | gfc_init_block (&body); |
1b716045 | 2731 | |
f888a3fb | 2732 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2733 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2734 | vec_safe_push (args, tmp); |
1b716045 | 2735 | |
c6871095 | 2736 | if (thunk_sym->attr.function) |
2737 | { | |
2738 | if (gfc_return_by_reference (ns->proc_name)) | |
2739 | { | |
2740 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2741 | vec_safe_push (args, ref); |
c6871095 | 2742 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2743 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2744 | } |
2745 | } | |
2746 | ||
6777213b | 2747 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2748 | formal = formal->next) | |
1b716045 | 2749 | { |
c6871095 | 2750 | /* Ignore alternate returns. */ |
2751 | if (formal->sym == NULL) | |
2752 | continue; | |
2753 | ||
1b716045 | 2754 | /* We don't have a clever way of identifying arguments, so resort to |
2755 | a brute-force search. */ | |
6777213b | 2756 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2757 | thunk_formal; |
2758 | thunk_formal = thunk_formal->next) | |
2759 | { | |
2760 | if (thunk_formal->sym == formal->sym) | |
2761 | break; | |
2762 | } | |
2763 | ||
2764 | if (thunk_formal) | |
2765 | { | |
2766 | /* Pass the argument. */ | |
d95efb59 | 2767 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2768 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2769 | if (formal->sym->ts.type == BT_CHARACTER) |
2770 | { | |
eeebe20b | 2771 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2772 | vec_safe_push (string_args, tmp); |
1b716045 | 2773 | } |
2774 | } | |
2775 | else | |
2776 | { | |
2777 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2778 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2779 | if (formal->sym->ts.type == BT_CHARACTER) |
2780 | { | |
7d3075f6 | 2781 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2782 | vec_safe_push (string_args, tmp); |
1b716045 | 2783 | } |
2784 | } | |
2785 | } | |
2786 | ||
2787 | /* Call the master function. */ | |
f1f41a6c | 2788 | vec_safe_splice (args, string_args); |
1b716045 | 2789 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2790 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2791 | if (ns->proc_name->attr.mixed_entry_master) |
2792 | { | |
2793 | tree union_decl, field; | |
2794 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2795 | ||
e60a6f7b | 2796 | union_decl = build_decl (input_location, |
2797 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2798 | TREE_TYPE (master_type)); |
2799 | DECL_ARTIFICIAL (union_decl) = 1; | |
2800 | DECL_EXTERNAL (union_decl) = 0; | |
2801 | TREE_PUBLIC (union_decl) = 0; | |
2802 | TREE_USED (union_decl) = 1; | |
2803 | layout_decl (union_decl, 0); | |
2804 | pushdecl (union_decl); | |
2805 | ||
2806 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2807 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2808 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2809 | gfc_add_expr_to_block (&body, tmp); |
2810 | ||
2811 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2812 | field; field = DECL_CHAIN (field)) |
c6871095 | 2813 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2814 | thunk_sym->result->name) == 0) | |
2815 | break; | |
2816 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2817 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2818 | TREE_TYPE (field), union_decl, field, | |
2819 | NULL_TREE); | |
a90fe829 | 2820 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2821 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2822 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2823 | tmp = build1_v (RETURN_EXPR, tmp); |
2824 | } | |
2825 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2826 | != void_type_node) | |
2827 | { | |
fd779e1d | 2828 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2829 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2830 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2831 | tmp = build1_v (RETURN_EXPR, tmp); |
2832 | } | |
1b716045 | 2833 | gfc_add_expr_to_block (&body, tmp); |
2834 | ||
2835 | /* Finish off this function and send it for code generation. */ | |
2836 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2837 | tmp = getdecls (); |
cde2be84 | 2838 | poplevel (1, 1); |
1b716045 | 2839 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2840 | DECL_SAVED_TREE (thunk_fndecl) |
2841 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2842 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2843 | |
2844 | /* Output the GENERIC tree. */ | |
2845 | dump_function (TDI_original, thunk_fndecl); | |
2846 | ||
2847 | /* Store the end of the function, so that we get good line number | |
2848 | info for the epilogue. */ | |
2849 | cfun->function_end_locus = input_location; | |
2850 | ||
2851 | /* We're leaving the context of this function, so zap cfun. | |
2852 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2853 | tree_rest_of_compilation. */ | |
87d4aa85 | 2854 | set_cfun (NULL); |
1b716045 | 2855 | |
2856 | current_function_decl = NULL_TREE; | |
2857 | ||
35ee1c66 | 2858 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2859 | |
2860 | /* We share the symbols in the formal argument list with other entry | |
2861 | points and the master function. Clear them so that they are | |
2862 | recreated for each function. */ | |
6777213b | 2863 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2864 | formal = formal->next) | |
c6871095 | 2865 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2866 | { | |
2867 | formal->sym->backend_decl = NULL_TREE; | |
2868 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2869 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2870 | } |
2871 | ||
2872 | if (thunk_sym->attr.function) | |
1b716045 | 2873 | { |
c6871095 | 2874 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2875 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2876 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2877 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2878 | } |
2879 | } | |
b31f705b | 2880 | |
4671339c | 2881 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2882 | } |
2883 | ||
2884 | ||
2885 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2886 | points. If global is true, generate the function in the global binding |
2887 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2888 | |
2889 | void | |
d896f9b3 | 2890 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2891 | { |
2892 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2893 | build_function_decl (ns->proc_name, global); |
1b716045 | 2894 | |
f888a3fb | 2895 | /* Compile the entry thunks. */ |
1b716045 | 2896 | if (ns->entries) |
d896f9b3 | 2897 | build_entry_thunks (ns, global); |
1b716045 | 2898 | |
2899 | /* Now create the read argument list. */ | |
2900 | create_function_arglist (ns->proc_name); | |
15b28553 | 2901 | |
2902 | if (ns->omp_declare_simd) | |
2903 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2904 | } |
2905 | ||
c750cc52 | 2906 | /* Return the decl used to hold the function return value. If |
3350e716 | 2907 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2908 | |
2909 | tree | |
c750cc52 | 2910 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2911 | { |
c750cc52 | 2912 | tree decl; |
2913 | tree length; | |
2914 | tree this_fake_result_decl; | |
2915 | tree this_function_decl; | |
4ee9c684 | 2916 | |
2917 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2918 | ||
c750cc52 | 2919 | if (parent_flag) |
2920 | { | |
2921 | this_fake_result_decl = parent_fake_result_decl; | |
2922 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2923 | } | |
2924 | else | |
2925 | { | |
2926 | this_fake_result_decl = current_fake_result_decl; | |
2927 | this_function_decl = current_function_decl; | |
2928 | } | |
2929 | ||
c6871095 | 2930 | if (sym |
c750cc52 | 2931 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2932 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2933 | && sym != sym->ns->proc_name) |
2934 | { | |
d4163395 | 2935 | tree t = NULL, var; |
c750cc52 | 2936 | if (this_fake_result_decl != NULL) |
2937 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2938 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2939 | break; | |
2940 | if (t) | |
2941 | return TREE_VALUE (t); | |
c750cc52 | 2942 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2943 | ||
2944 | if (parent_flag) | |
2945 | this_fake_result_decl = parent_fake_result_decl; | |
2946 | else | |
2947 | this_fake_result_decl = current_fake_result_decl; | |
2948 | ||
d4163395 | 2949 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2950 | { |
2951 | tree field; | |
2952 | ||
2953 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2954 | field; field = DECL_CHAIN (field)) |
c6871095 | 2955 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2956 | sym->name) == 0) | |
2957 | break; | |
2958 | ||
2959 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2960 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2961 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2962 | } |
c750cc52 | 2963 | |
2964 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2965 | if (parent_flag) | |
2966 | gfc_add_decl_to_parent_function (var); | |
2967 | else | |
2968 | gfc_add_decl_to_function (var); | |
2969 | ||
d4163395 | 2970 | SET_DECL_VALUE_EXPR (var, decl); |
2971 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2972 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2973 | |
2974 | TREE_CHAIN (this_fake_result_decl) | |
2975 | = tree_cons (get_identifier (sym->name), var, | |
2976 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2977 | return var; |
c6871095 | 2978 | } |
2979 | ||
c750cc52 | 2980 | if (this_fake_result_decl != NULL_TREE) |
2981 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2982 | |
2983 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2984 | sym is NULL. */ | |
2985 | if (!sym) | |
2986 | return NULL_TREE; | |
2987 | ||
d4163395 | 2988 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2989 | { |
eeebe20b | 2990 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2991 | length = gfc_create_string_length (sym); |
2992 | else | |
eeebe20b | 2993 | length = sym->ts.u.cl->backend_decl; |
fe732a9b | 2994 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
99042714 | 2995 | gfc_add_decl_to_function (length); |
4ee9c684 | 2996 | } |
2997 | ||
2998 | if (gfc_return_by_reference (sym)) | |
2999 | { | |
c750cc52 | 3000 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 3001 | |
c750cc52 | 3002 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 3003 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 3004 | decl = DECL_CHAIN (decl); |
4ee9c684 | 3005 | |
3006 | TREE_USED (decl) = 1; | |
3007 | if (sym->as) | |
3008 | decl = gfc_build_dummy_array_decl (sym, decl); | |
3009 | } | |
3010 | else | |
3011 | { | |
3012 | sprintf (name, "__result_%.20s", | |
c750cc52 | 3013 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 3014 | |
3350e716 | 3015 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 3016 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 3017 | VAR_DECL, get_identifier (name), |
3350e716 | 3018 | gfc_sym_type (sym)); |
3019 | else | |
1e71b314 | 3020 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 3021 | VAR_DECL, get_identifier (name), |
3350e716 | 3022 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 3023 | DECL_ARTIFICIAL (decl) = 1; |
3024 | DECL_EXTERNAL (decl) = 0; | |
3025 | TREE_PUBLIC (decl) = 0; | |
3026 | TREE_USED (decl) = 1; | |
764f1175 | 3027 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 3028 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 3029 | |
3030 | layout_decl (decl, 0); | |
cf5f881f | 3031 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 3032 | |
c750cc52 | 3033 | if (parent_flag) |
3034 | gfc_add_decl_to_parent_function (decl); | |
3035 | else | |
3036 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 3037 | } |
3038 | ||
c750cc52 | 3039 | if (parent_flag) |
3040 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3041 | else | |
3042 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 3043 | |
3044 | return decl; | |
3045 | } | |
3046 | ||
3047 | ||
3048 | /* Builds a function decl. The remaining parameters are the types of the | |
3049 | function arguments. Negative nargs indicates a varargs function. */ | |
3050 | ||
8ce86007 | 3051 | static tree |
3052 | build_library_function_decl_1 (tree name, const char *spec, | |
3053 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 3054 | { |
f1f41a6c | 3055 | vec<tree, va_gc> *arglist; |
4ee9c684 | 3056 | tree fntype; |
3057 | tree fndecl; | |
4ee9c684 | 3058 | int n; |
3059 | ||
3060 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 3061 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 3062 | |
4ee9c684 | 3063 | /* Create a list of the argument types. */ |
f1f41a6c | 3064 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 3065 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 3066 | { |
5edc3af9 | 3067 | tree argtype = va_arg (p, tree); |
f1f41a6c | 3068 | arglist->quick_push (argtype); |
4ee9c684 | 3069 | } |
3070 | ||
3071 | /* Build the function type and decl. */ | |
5edc3af9 | 3072 | if (nargs >= 0) |
3073 | fntype = build_function_type_vec (rettype, arglist); | |
3074 | else | |
3075 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 3076 | if (spec) |
3077 | { | |
3078 | tree attr_args = build_tree_list (NULL_TREE, | |
3079 | build_string (strlen (spec), spec)); | |
3080 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3081 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3082 | fntype = build_type_attribute_variant (fntype, attrs); | |
3083 | } | |
e60a6f7b | 3084 | fndecl = build_decl (input_location, |
3085 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 3086 | |
3087 | /* Mark this decl as external. */ | |
3088 | DECL_EXTERNAL (fndecl) = 1; | |
3089 | TREE_PUBLIC (fndecl) = 1; | |
3090 | ||
4ee9c684 | 3091 | pushdecl (fndecl); |
3092 | ||
b2c4af5e | 3093 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 3094 | |
3095 | return fndecl; | |
3096 | } | |
3097 | ||
8ce86007 | 3098 | /* Builds a function decl. The remaining parameters are the types of the |
3099 | function arguments. Negative nargs indicates a varargs function. */ | |
3100 | ||
3101 | tree | |
3102 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3103 | { | |
3104 | tree ret; | |
3105 | va_list args; | |
3106 | va_start (args, nargs); | |
3107 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3108 | va_end (args); | |
3109 | return ret; | |
3110 | } | |
3111 | ||
3112 | /* Builds a function decl. The remaining parameters are the types of the | |
3113 | function arguments. Negative nargs indicates a varargs function. | |
3114 | The SPEC parameter specifies the function argument and return type | |
3115 | specification according to the fnspec function type attribute. */ | |
3116 | ||
4bf69bc3 | 3117 | tree |
8ce86007 | 3118 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3119 | tree rettype, int nargs, ...) | |
3120 | { | |
3121 | tree ret; | |
3122 | va_list args; | |
3123 | va_start (args, nargs); | |
3124 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3125 | va_end (args); | |
3126 | return ret; | |
3127 | } | |
3128 | ||
4ee9c684 | 3129 | static void |
3130 | gfc_build_intrinsic_function_decls (void) | |
3131 | { | |
90ba9145 | 3132 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 3133 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3134 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3135 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3136 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3137 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3138 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3139 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3140 | |
4ee9c684 | 3141 | /* String functions. */ |
241ecdc7 | 3142 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3143 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3144 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3145 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3146 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3147 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3148 | |
3149 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3150 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3151 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3152 | gfc_charlen_type_node, pchar1_type_node, | |
3153 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3154 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3155 | |
3156 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3157 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3158 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3159 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3160 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3161 | |
3162 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3163 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3164 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3165 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3166 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3167 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3168 | |
3169 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3170 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3171 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3172 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3173 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3174 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3175 | |
3176 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3177 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3178 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3179 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3180 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3181 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3182 | |
3183 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3184 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3185 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3186 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3187 | pchar1_type_node); | |
3188 | ||
3189 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3190 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3191 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3192 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3193 | integer_type_node); | |
3194 | ||
3195 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3196 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3197 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3198 | pchar1_type_node); | |
bc351485 | 3199 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3200 | |
3201 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3202 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3203 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3204 | pchar1_type_node); | |
bc351485 | 3205 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3206 | |
3207 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3208 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3209 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3210 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3211 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3212 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3213 | |
3214 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3215 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3216 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3217 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3218 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3219 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3220 | |
3221 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3222 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3223 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3224 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3225 | pchar4_type_node); | |
bc351485 | 3226 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3227 | |
3228 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3229 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3230 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3231 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3232 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3233 | |
3234 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3235 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3236 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3237 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3238 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3239 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3240 | |
3241 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3242 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3243 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3244 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3245 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3246 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3247 | |
3248 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3249 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3250 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3251 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3252 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3253 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3254 | |
3255 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3256 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3257 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3258 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3259 | pchar4_type_node); | |
3260 | ||
3261 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3262 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3263 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3264 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3265 | integer_type_node); | |
3266 | ||
3267 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3268 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3269 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3270 | pchar4_type_node); | |
bc351485 | 3271 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3272 | |
3273 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3274 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3275 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3276 | pchar4_type_node); | |
bc351485 | 3277 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3278 | |
3279 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3280 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3281 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3282 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3283 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3284 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3285 | |
3286 | ||
3287 | /* Conversion between character kinds. */ | |
3288 | ||
241ecdc7 | 3289 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3290 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3291 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3292 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3293 | |
241ecdc7 | 3294 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3295 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3296 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3297 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3298 | |
40b806de | 3299 | /* Misc. functions. */ |
5fcc6ec2 | 3300 | |
241ecdc7 | 3301 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3302 | get_identifier (PREFIX("ttynam")), ".W", | |
3303 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3304 | integer_type_node); | |
3305 | ||
3306 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3307 | get_identifier (PREFIX("fdate")), ".W", | |
3308 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3309 | ||
3310 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3311 | get_identifier (PREFIX("ctime")), ".W", | |
3312 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3313 | gfc_int8_type_node); | |
3314 | ||
3315 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3316 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3317 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3318 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3319 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3320 | |
3321 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3322 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3323 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3324 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3325 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3326 | |
3327 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3328 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3329 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3330 | pvoid_type_node); | |
537824d1 | 3331 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3332 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3333 | |
72ce5390 | 3334 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3335 | get_identifier (PREFIX("system_clock_4")), | |
3336 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3337 | gfc_pint4_type_node); | |
3338 | ||
3339 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3340 | get_identifier (PREFIX("system_clock_8")), | |
3341 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3342 | gfc_pint8_type_node); | |
3343 | ||
4ee9c684 | 3344 | /* Power functions. */ |
76834664 | 3345 | { |
920e54ef | 3346 | tree ctype, rtype, itype, jtype; |
3347 | int rkind, ikind, jkind; | |
3348 | #define NIKINDS 3 | |
3349 | #define NRKINDS 4 | |
3350 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3351 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3352 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3353 | ||
3354 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3355 | { |
920e54ef | 3356 | itype = gfc_get_int_type (ikinds[ikind]); |
3357 | ||
3358 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3359 | { | |
3360 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3361 | if (itype && jtype) | |
3362 | { | |
3363 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3364 | ikinds[jkind]); | |
3365 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3366 | gfc_build_library_function_decl (get_identifier (name), | |
3367 | jtype, 2, jtype, itype); | |
2177d98b | 3368 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3369 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3370 | } |
3371 | } | |
3372 | ||
3373 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3374 | { |
920e54ef | 3375 | rtype = gfc_get_real_type (rkinds[rkind]); |
3376 | if (rtype && itype) | |
3377 | { | |
3378 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3379 | ikinds[ikind]); | |
3380 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3381 | gfc_build_library_function_decl (get_identifier (name), | |
3382 | rtype, 2, rtype, itype); | |
2177d98b | 3383 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3384 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3385 | } |
3386 | ||
3387 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3388 | if (ctype && itype) | |
3389 | { | |
3390 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3391 | ikinds[ikind]); | |
3392 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3393 | gfc_build_library_function_decl (get_identifier (name), | |
3394 | ctype, 2,ctype, itype); | |
2177d98b | 3395 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3396 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3397 | } |
76834664 | 3398 | } |
3399 | } | |
920e54ef | 3400 | #undef NIKINDS |
3401 | #undef NRKINDS | |
76834664 | 3402 | } |
3403 | ||
241ecdc7 | 3404 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3405 | get_identifier (PREFIX("ishftc4")), | |
3406 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3407 | gfc_int4_type_node); | |
bc351485 | 3408 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3409 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3410 | |
241ecdc7 | 3411 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3412 | get_identifier (PREFIX("ishftc8")), | |
3413 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3414 | gfc_int4_type_node); | |
bc351485 | 3415 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3416 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3417 | |
920e54ef | 3418 | if (gfc_int16_type_node) |
bc351485 | 3419 | { |
3420 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3421 | get_identifier (PREFIX("ishftc16")), |
3422 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3423 | gfc_int4_type_node); | |
bc351485 | 3424 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3425 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3426 | } | |
920e54ef | 3427 | |
4e8e57b0 | 3428 | /* BLAS functions. */ |
3429 | { | |
36c921b9 | 3430 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3431 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3432 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3433 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3434 | tree pz = build_pointer_type | |
3435 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3436 | ||
3437 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3438 | (get_identifier | |
829d7a08 | 3439 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3440 | void_type_node, 15, pchar_type_node, |
3441 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3442 | ps, pint, ps, ps, pint, integer_type_node, |
3443 | integer_type_node); | |
4e8e57b0 | 3444 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3445 | (get_identifier | |
829d7a08 | 3446 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3447 | void_type_node, 15, pchar_type_node, |
3448 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3449 | pd, pint, pd, pd, pint, integer_type_node, |
3450 | integer_type_node); | |
4e8e57b0 | 3451 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3452 | (get_identifier | |
829d7a08 | 3453 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3454 | void_type_node, 15, pchar_type_node, |
3455 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3456 | pc, pint, pc, pc, pint, integer_type_node, |
3457 | integer_type_node); | |
4e8e57b0 | 3458 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3459 | (get_identifier | |
829d7a08 | 3460 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3461 | void_type_node, 15, pchar_type_node, |
3462 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3463 | pz, pint, pz, pz, pint, integer_type_node, |
3464 | integer_type_node); | |
4e8e57b0 | 3465 | } |
3466 | ||
4ee9c684 | 3467 | /* Other functions. */ |
241ecdc7 | 3468 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3469 | get_identifier (PREFIX("size0")), ".R", | |
3470 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3471 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3472 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3473 | |
3474 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3475 | get_identifier (PREFIX("size1")), ".R", | |
3476 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3477 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3478 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3479 | |
3480 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3481 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3482 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3483 | } |
3484 | ||
3485 | ||
3486 | /* Make prototypes for runtime library functions. */ | |
3487 | ||
3488 | void | |
3489 | gfc_build_builtin_function_decls (void) | |
3490 | { | |
90ba9145 | 3491 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3492 | |
241ecdc7 | 3493 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3494 | get_identifier (PREFIX("stop_numeric")), | |
3495 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3496 | /* STOP doesn't return. */ |
98ccec97 | 3497 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3498 | ||
241ecdc7 | 3499 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3500 | get_identifier (PREFIX("stop_string")), ".R.", | |
3501 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3502 | /* STOP doesn't return. */ |
241ecdc7 | 3503 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3504 | |
241ecdc7 | 3505 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3506 | get_identifier (PREFIX("error_stop_numeric")), | |
3507 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3508 | /* ERROR STOP doesn't return. */ |
3509 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3510 | ||
241ecdc7 | 3511 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3512 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3513 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3514 | /* ERROR STOP doesn't return. */ |
3515 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3516 | ||
241ecdc7 | 3517 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3518 | get_identifier (PREFIX("pause_numeric")), | |
3519 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3520 | |
241ecdc7 | 3521 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3522 | get_identifier (PREFIX("pause_string")), ".R.", | |
3523 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3524 | |
241ecdc7 | 3525 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3526 | get_identifier (PREFIX("runtime_error")), ".R", | |
3527 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3528 | /* The runtime_error function does not return. */ |
3529 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3530 | |
241ecdc7 | 3531 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3532 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3533 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3534 | /* The runtime_error_at function does not return. */ |
3535 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3536 | |
241ecdc7 | 3537 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3538 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3539 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3540 | ||
3541 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3542 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3543 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3544 | pchar_type_node); | |
3545 | ||
3546 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3547 | get_identifier (PREFIX("os_error")), ".R", | |
3548 | void_type_node, 1, pchar_type_node); | |
9915365e | 3549 | /* The runtime_error function does not return. */ |
3550 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3551 | ||
241ecdc7 | 3552 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3553 | get_identifier (PREFIX("set_args")), | |
3554 | void_type_node, 2, integer_type_node, | |
3555 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3556 | |
241ecdc7 | 3557 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3558 | get_identifier (PREFIX("set_fpe")), | |
3559 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3560 | |
d566c3e0 | 3561 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3562 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3563 | void_type_node, 1, pvoid_type_node); | |
3564 | ||
3565 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3566 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3567 | void_type_node, 1, pvoid_type_node); | |
3568 | ||
56c7c2d7 | 3569 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3570 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3571 | get_identifier (PREFIX("set_options")), "..R", | |
3572 | void_type_node, 2, integer_type_node, | |
3573 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3574 | |
241ecdc7 | 3575 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3576 | get_identifier (PREFIX("set_convert")), | |
3577 | void_type_node, 1, integer_type_node); | |
15774a8b | 3578 | |
241ecdc7 | 3579 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3580 | get_identifier (PREFIX("set_record_marker")), | |
3581 | void_type_node, 1, integer_type_node); | |
f23886ab | 3582 | |
241ecdc7 | 3583 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3584 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3585 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3586 | |
8ce86007 | 3587 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3588 | get_identifier (PREFIX("internal_pack")), ".r", |
3589 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3590 | |
8ce86007 | 3591 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3592 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3593 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3594 | ||
3595 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3596 | get_identifier (PREFIX("associated")), ".RR", | |
3597 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3598 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3599 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3600 | |
70b5944a | 3601 | /* Coarray library calls. */ |
4fe73152 | 3602 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3603 | { |
3604 | tree pint_type, pppchar_type; | |
3605 | ||
3606 | pint_type = build_pointer_type (integer_type_node); | |
3607 | pppchar_type | |
3608 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3609 | ||
3610 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
65cbb21d | 3611 | get_identifier (PREFIX("caf_init")), void_type_node, |
3612 | 2, pint_type, pppchar_type); | |
70b5944a | 3613 | |
3614 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3615 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3616 | ||
d44f2f7c | 3617 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
65cbb21d | 3618 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3619 | 1, integer_type_node); | |
d44f2f7c | 3620 | |
3621 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
65cbb21d | 3622 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3623 | 2, integer_type_node, integer_type_node); | |
d44f2f7c | 3624 | |
a961ca30 | 3625 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
eee0cf09 | 3626 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3627 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
3628 | pint_type, pchar_type_node, integer_type_node); | |
d0d776fb | 3629 | |
3630 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3d2aa0e8 | 3631 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3632 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
3633 | integer_type_node); | |
a961ca30 | 3634 | |
5f4a118e | 3635 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3636 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3637 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3638 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3639 | boolean_type_node, pint_type); |
5f4a118e | 3640 | |
3641 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3642 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRW", void_type_node, 10, |
3643 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
9f1c76f9 | 3644 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3645 | boolean_type_node, pint_type); |
5f4a118e | 3646 | |
3647 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
eee0cf09 | 3648 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3649 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3650 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3651 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3652 | integer_type_node, boolean_type_node, integer_type_node); | |
3653 | ||
3654 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
3655 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRW", void_type_node, | |
3656 | 9, pvoid_type_node, integer_type_node, pvoid_type_node, pvoid_type_node, | |
3657 | integer_type_node, integer_type_node, boolean_type_node, | |
3658 | boolean_type_node, pint_type); | |
3659 | ||
3660 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
3661 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRW", void_type_node, | |
3662 | 9, pvoid_type_node, integer_type_node, pvoid_type_node, pvoid_type_node, | |
3663 | integer_type_node, integer_type_node, boolean_type_node, | |
3664 | boolean_type_node, pint_type); | |
3665 | ||
3666 | gfor_fndecl_caf_sendget_by_ref | |
3667 | = gfc_build_library_function_decl_with_spec ( | |
3668 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWW", | |
3669 | void_type_node, 11, pvoid_type_node, integer_type_node, | |
3670 | pvoid_type_node, pvoid_type_node, integer_type_node, | |
3671 | pvoid_type_node, integer_type_node, integer_type_node, | |
3672 | boolean_type_node, pint_type, pint_type); | |
5f4a118e | 3673 | |
70b5944a | 3674 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3675 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3676 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3677 | |
71cf3ae6 | 3678 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3679 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3680 | 3, pint_type, pchar_type_node, integer_type_node); | |
3681 | ||
70b5944a | 3682 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3683 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3684 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3685 | pchar_type_node, integer_type_node); |
70b5944a | 3686 | |
3687 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3688 | get_identifier (PREFIX("caf_error_stop")), | |
3689 | void_type_node, 1, gfc_int4_type_node); | |
3690 | /* CAF's ERROR STOP doesn't return. */ | |
3691 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3692 | ||
3693 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3694 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3695 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3696 | /* CAF's ERROR STOP doesn't return. */ | |
3697 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3698 | |
ba4d9b7e | 3699 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
65cbb21d | 3700 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
3701 | void_type_node, 1, gfc_int4_type_node); | |
ba4d9b7e | 3702 | /* CAF's STOP doesn't return. */ |
3703 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3704 | ||
3705 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
65cbb21d | 3706 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
3707 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
ba4d9b7e | 3708 | /* CAF's STOP doesn't return. */ |
3709 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3710 | ||
97b9ac34 | 3711 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3712 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3713 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3714 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3715 | |
3716 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3717 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3718 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3719 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
97b9ac34 | 3720 | |
3721 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3722 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3723 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
65cbb21d | 3724 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
97b9ac34 | 3725 | integer_type_node, integer_type_node); |
3726 | ||
3727 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3728 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3729 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3730 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3731 | integer_type_node, integer_type_node); | |
3732 | ||
498b946e | 3733 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3734 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3735 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3736 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3737 | ||
3738 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3739 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3740 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
498b946e | 3741 | pint_type, pchar_type_node, integer_type_node); |
3742 | ||
bd47f0bc | 3743 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3744 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3745 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3746 | pint_type, pchar_type_node, integer_type_node); | |
3747 | ||
3748 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3749 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3750 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3751 | pint_type, pchar_type_node, integer_type_node); | |
3752 | ||
3753 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3754 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3755 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3756 | pint_type, pint_type); | |
3757 | ||
d9ca273e | 3758 | gfor_fndecl_caf_fail_image = gfc_build_library_function_decl ( |
3759 | get_identifier (PREFIX("caf_fail_image")), void_type_node, 0); | |
3760 | /* CAF's FAIL doesn't return. */ | |
3761 | TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1; | |
3762 | ||
3763 | gfor_fndecl_caf_failed_images | |
3764 | = gfc_build_library_function_decl_with_spec ( | |
3765 | get_identifier (PREFIX("caf_failed_images")), "WRR", | |
3766 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3767 | integer_type_node); | |
3768 | ||
3769 | gfor_fndecl_caf_image_status | |
3770 | = gfc_build_library_function_decl_with_spec ( | |
3771 | get_identifier (PREFIX("caf_image_status")), "RR", | |
3772 | integer_type_node, 2, integer_type_node, ppvoid_type_node); | |
3773 | ||
3774 | gfor_fndecl_caf_stopped_images | |
3775 | = gfc_build_library_function_decl_with_spec ( | |
3776 | get_identifier (PREFIX("caf_stopped_images")), "WRR", | |
3777 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3778 | integer_type_node); | |
3779 | ||
52306a18 | 3780 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3781 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3782 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3783 | pint_type, pchar_type_node, integer_type_node); | |
3784 | ||
79ed4a8e | 3785 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3786 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3787 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3788 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3789 | ||
3790 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3791 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3792 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3793 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3794 | ||
e39efcef | 3795 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3796 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3797 | void_type_node, 8, pvoid_type_node, | |
65cbb21d | 3798 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
e39efcef | 3799 | NULL_TREE)), |
3800 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3801 | integer_type_node, integer_type_node); | |
3802 | ||
79ed4a8e | 3803 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3804 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3805 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3806 | pint_type, pchar_type_node, integer_type_node); |
3d2aa0e8 | 3807 | |
3808 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3809 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3810 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3811 | pvoid_type_node); | |
70b5944a | 3812 | } |
3813 | ||
4ee9c684 | 3814 | gfc_build_intrinsic_function_decls (); |
3815 | gfc_build_intrinsic_lib_fndecls (); | |
3816 | gfc_build_io_library_fndecls (); | |
3817 | } | |
3818 | ||
3819 | ||
231e961a | 3820 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3821 | |
c5faa799 | 3822 | static void |
3823 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3824 | gfc_wrapped_block *block) | |
4ee9c684 | 3825 | { |
c5faa799 | 3826 | stmtblock_t init; |
4ee9c684 | 3827 | |
b9c7fce7 | 3828 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3829 | |
c5faa799 | 3830 | gfc_start_block (&init); |
4ee9c684 | 3831 | |
3832 | /* Evaluate the string length expression. */ | |
c5faa799 | 3833 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3834 | |
c5faa799 | 3835 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3836 | |
c5faa799 | 3837 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3838 | } |
3839 | ||
3840 | ||
3841 | /* Allocate and cleanup an automatic character variable. */ | |
3842 | ||
c5faa799 | 3843 | static void |
3844 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3845 | { |
c5faa799 | 3846 | stmtblock_t init; |
4ee9c684 | 3847 | tree decl; |
4ee9c684 | 3848 | tree tmp; |
3849 | ||
22d678e8 | 3850 | gcc_assert (sym->backend_decl); |
eeebe20b | 3851 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3852 | |
3714c8b6 | 3853 | gfc_init_block (&init); |
4ee9c684 | 3854 | |
3855 | /* Evaluate the string length expression. */ | |
c5faa799 | 3856 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3857 | |
c5faa799 | 3858 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3859 | |
4ee9c684 | 3860 | decl = sym->backend_decl; |
3861 | ||
afcf285e | 3862 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3863 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3864 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3865 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3866 | |
c5faa799 | 3867 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3868 | } |
3869 | ||
c8f1568f | 3870 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3871 | ||
c5faa799 | 3872 | static void |
3873 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3874 | { |
c5faa799 | 3875 | stmtblock_t init; |
c8f1568f | 3876 | |
3877 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3878 | gfc_start_block (&init); |
c8f1568f | 3879 | |
3880 | /* Set the initial value to length. See the comments in | |
3881 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3882 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3883 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3884 | |
c5faa799 | 3885 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3886 | } |
3887 | ||
d4163395 | 3888 | static void |
3889 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3890 | { | |
3891 | tree t = *tp, var, val; | |
3892 | ||
3893 | if (t == NULL || t == error_mark_node) | |
3894 | return; | |
3895 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3896 | return; | |
3897 | ||
3898 | if (TREE_CODE (t) == SAVE_EXPR) | |
3899 | { | |
3900 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3901 | { | |
3902 | *tp = TREE_OPERAND (t, 0); | |
3903 | return; | |
3904 | } | |
3905 | val = TREE_OPERAND (t, 0); | |
3906 | } | |
3907 | else | |
3908 | val = t; | |
3909 | ||
3910 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3911 | gfc_add_decl_to_function (var); | |
1ec957b0 | 3912 | gfc_add_modify (body, var, unshare_expr (val)); |
d4163395 | 3913 | if (TREE_CODE (t) == SAVE_EXPR) |
3914 | TREE_OPERAND (t, 0) = var; | |
3915 | *tp = var; | |
3916 | } | |
3917 | ||
3918 | static void | |
3919 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3920 | { | |
3921 | tree t; | |
3922 | ||
3923 | if (type == NULL || type == error_mark_node) | |
3924 | return; | |
3925 | ||
3926 | type = TYPE_MAIN_VARIANT (type); | |
3927 | ||
3928 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3929 | { | |
3930 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3931 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3932 | ||
3933 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3934 | { | |
3935 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3936 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3937 | } | |
3938 | } | |
3939 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3940 | { | |
3941 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3942 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3943 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3944 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3945 | ||
3946 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3947 | { | |
3948 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3949 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3950 | } | |
3951 | } | |
3952 | } | |
3953 | ||
3954 | /* Make sure all type sizes and array domains are either constant, | |
3955 | or variable or parameter decls. This is a simplified variant | |
3956 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3957 | variables in the expressions have been gimplified yet. | |
3958 | As type sizes and domains for various variable length arrays | |
3959 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3960 | time, without this routine gimplify_type_sizes in the middle-end | |
3961 | could result in the type sizes being gimplified earlier than where | |
3962 | those variables are initialized. */ | |
3963 | ||
3964 | void | |
3965 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3966 | { | |
3967 | tree type = TREE_TYPE (sym->backend_decl); | |
3968 | ||
3969 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3970 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3971 | { | |
3972 | if (! current_fake_result_decl) | |
3973 | return; | |
3974 | ||
3975 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3976 | } | |
3977 | ||
3978 | while (POINTER_TYPE_P (type)) | |
3979 | type = TREE_TYPE (type); | |
3980 | ||
3981 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3982 | { | |
3983 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3984 | ||
3985 | while (POINTER_TYPE_P (etype)) | |
3986 | etype = TREE_TYPE (etype); | |
3987 | ||
3988 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3989 | } | |
3990 | ||
3991 | gfc_trans_vla_type_sizes_1 (type, body); | |
3992 | } | |
3993 | ||
4ee9c684 | 3994 | |
f0d4969f | 3995 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3996 | and using trans_assignment to do the work. Set dealloc to false |
3997 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3998 | void |
3999 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 4000 | { |
f0d4969f | 4001 | gfc_expr *e; |
87114d2e | 4002 | tree tmp; |
4003 | tree present; | |
4004 | ||
c5faa799 | 4005 | gcc_assert (block); |
4006 | ||
f0d4969f | 4007 | gcc_assert (!sym->attr.allocatable); |
4008 | gfc_set_sym_referenced (sym); | |
4009 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 4010 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 4011 | if (sym->attr.dummy && (sym->attr.optional |
4012 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 4013 | { |
f0d4969f | 4014 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 4015 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
4016 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 4017 | } |
c5faa799 | 4018 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 4019 | gfc_free_expr (e); |
87114d2e | 4020 | } |
4021 | ||
4022 | ||
8714fc76 | 4023 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
4024 | them their default initializer, if they do not have allocatable | |
293d72e0 | 4025 | components, they have their allocatable components deallocated. */ |
8714fc76 | 4026 | |
c5faa799 | 4027 | static void |
4028 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 4029 | { |
c5faa799 | 4030 | stmtblock_t init; |
f0d4969f | 4031 | gfc_formal_arglist *f; |
8714fc76 | 4032 | tree tmp; |
5907c3ea | 4033 | tree present; |
f0d4969f | 4034 | |
c5faa799 | 4035 | gfc_init_block (&init); |
6777213b | 4036 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 4037 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 4038 | && !f->sym->attr.pointer |
4039 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 4040 | { |
942ba353 | 4041 | tmp = NULL_TREE; |
4042 | ||
4043 | /* Note: Allocatables are excluded as they are already handled | |
4044 | by the caller. */ | |
4045 | if (!f->sym->attr.allocatable | |
4046 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 4047 | { |
942ba353 | 4048 | stmtblock_t block; |
4049 | gfc_expr *e; | |
4050 | ||
4051 | gfc_init_block (&block); | |
4052 | f->sym->attr.referenced = 1; | |
4053 | e = gfc_lval_expr_from_sym (f->sym); | |
4054 | gfc_add_finalizer_call (&block, e); | |
4055 | gfc_free_expr (e); | |
4056 | tmp = gfc_finish_block (&block); | |
4057 | } | |
5907c3ea | 4058 | |
942ba353 | 4059 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4060 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4061 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4062 | f->sym->backend_decl, | |
4063 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 4064 | |
942ba353 | 4065 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4066 | || f->sym->ns->proc_name->attr.entry_master)) | |
4067 | { | |
4068 | present = gfc_conv_expr_present (f->sym); | |
4069 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4070 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 4071 | } |
942ba353 | 4072 | |
4073 | if (tmp != NULL_TREE) | |
4074 | gfc_add_expr_to_block (&init, tmp); | |
4075 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 4076 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 4077 | } |
c56d57d6 | 4078 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4079 | && f->sym->ts.type == BT_CLASS | |
4080 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 4081 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 4082 | { |
942ba353 | 4083 | stmtblock_t block; |
4084 | gfc_expr *e; | |
4085 | ||
4086 | gfc_init_block (&block); | |
4087 | f->sym->attr.referenced = 1; | |
4088 | e = gfc_lval_expr_from_sym (f->sym); | |
4089 | gfc_add_finalizer_call (&block, e); | |
4090 | gfc_free_expr (e); | |
4091 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 4092 | |
4093 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4094 | { | |
4095 | present = gfc_conv_expr_present (f->sym); | |
4096 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4097 | present, tmp, | |
4098 | build_empty_stmt (input_location)); | |
4099 | } | |
4100 | ||
4101 | gfc_add_expr_to_block (&init, tmp); | |
4102 | } | |
f0d4969f | 4103 | |
c5faa799 | 4104 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 4105 | } |
4106 | ||
87114d2e | 4107 | |
b345a09f | 4108 | /* Helper function to manage deferred string lengths. */ |
4109 | ||
4110 | static tree | |
4111 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4112 | locus *loc) | |
4113 | { | |
4114 | tree tmp; | |
4115 | ||
4116 | /* Character length passed by reference. */ | |
4117 | tmp = sym->ts.u.cl->passed_length; | |
4118 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4119 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4120 | ||
4121 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4122 | /* Zero the string length when entering the scope. */ | |
4123 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4124 | build_int_cst (gfc_charlen_type_node, 0)); | |
4125 | else | |
4126 | { | |
4127 | tree tmp2; | |
4128 | ||
4129 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4130 | gfc_charlen_type_node, | |
4131 | sym->ts.u.cl->backend_decl, tmp); | |
4132 | if (sym->attr.optional) | |
4133 | { | |
4134 | tree present = gfc_conv_expr_present (sym); | |
4135 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4136 | void_type_node, present, tmp2, | |
4137 | build_empty_stmt (input_location)); | |
4138 | } | |
4139 | gfc_add_expr_to_block (init, tmp2); | |
4140 | } | |
4141 | ||
4142 | gfc_restore_backend_locus (loc); | |
4143 | ||
4144 | /* Pass the final character length back. */ | |
4145 | if (sym->attr.intent != INTENT_IN) | |
4146 | { | |
4147 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4148 | gfc_charlen_type_node, tmp, | |
4149 | sym->ts.u.cl->backend_decl); | |
4150 | if (sym->attr.optional) | |
4151 | { | |
4152 | tree present = gfc_conv_expr_present (sym); | |
4153 | tmp = build3_loc (input_location, COND_EXPR, | |
4154 | void_type_node, present, tmp, | |
4155 | build_empty_stmt (input_location)); | |
4156 | } | |
4157 | } | |
4158 | else | |
4159 | tmp = NULL_TREE; | |
4160 | ||
4161 | return tmp; | |
4162 | } | |
4163 | ||
9ead5324 | 4164 | |
4165 | /* Get the result expression for a procedure. */ | |
4166 | ||
4167 | static tree | |
4168 | get_proc_result (gfc_symbol* sym) | |
4169 | { | |
4170 | if (sym->attr.subroutine || sym == sym->result) | |
4171 | { | |
4172 | if (current_fake_result_decl != NULL) | |
4173 | return TREE_VALUE (current_fake_result_decl); | |
4174 | ||
4175 | return NULL_TREE; | |
4176 | } | |
4177 | ||
4178 | return sym->result->backend_decl; | |
4179 | } | |
4180 | ||
4181 | ||
4ee9c684 | 4182 | /* Generate function entry and exit code, and add it to the function body. |
4183 | This includes: | |
f888a3fb | 4184 | Allocation and initialization of array variables. |
4ee9c684 | 4185 | Allocation of character string variables. |
c8f1568f | 4186 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 4187 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 4188 | Initialization of ASSOCIATE names. |
0a96a7cc | 4189 | Automatic deallocation. */ |
4ee9c684 | 4190 | |
89ac8ba1 | 4191 | void |
4192 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 4193 | { |
4194 | locus loc; | |
4195 | gfc_symbol *sym; | |
d4163395 | 4196 | gfc_formal_arglist *f; |
c5faa799 | 4197 | stmtblock_t tmpblock; |
25dd7350 | 4198 | bool seen_trans_deferred_array = false; |
9d958d5b | 4199 | bool is_pdt_type = false; |
617125a6 | 4200 | tree tmp = NULL; |
4201 | gfc_expr *e; | |
4202 | gfc_se se; | |
4203 | stmtblock_t init; | |
4ee9c684 | 4204 | |
4205 | /* Deal with implicit return variables. Explicit return variables will | |
4206 | already have been added. */ | |
4207 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4208 | { | |
4209 | if (!current_fake_result_decl) | |
4210 | { | |
c6871095 | 4211 | gfc_entry_list *el = NULL; |
4212 | if (proc_sym->attr.entry_master) | |
4213 | { | |
4214 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4215 | if (el->sym != el->sym->result) | |
4216 | break; | |
4217 | } | |
fa7b6574 | 4218 | /* TODO: move to the appropriate place in resolve.c. */ |
8b72061f | 4219 | if (warn_return_type > 0 && el == NULL) |
4166acc7 | 4220 | gfc_warning (OPT_Wreturn_type, |
4221 | "Return value of function %qs at %L not set", | |
fa7b6574 | 4222 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 4223 | } |
c6871095 | 4224 | else if (proc_sym->as) |
4ee9c684 | 4225 | { |
d4163395 | 4226 | tree result = TREE_VALUE (current_fake_result_decl); |
9da84a54 | 4227 | gfc_save_backend_locus (&loc); |
4228 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4229 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 4230 | |
4231 | /* An automatic character length, pointer array result. */ | |
4232 | if (proc_sym->ts.type == BT_CHARACTER | |
fe732a9b | 4233 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
b345a09f | 4234 | { |
4235 | tmp = NULL; | |
4236 | if (proc_sym->ts.deferred) | |
4237 | { | |
b345a09f | 4238 | gfc_start_block (&init); |
4239 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4240 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4241 | } | |
4242 | else | |
4243 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4244 | } | |
4ee9c684 | 4245 | } |
4246 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4247 | { | |
617125a6 | 4248 | if (proc_sym->ts.deferred) |
4249 | { | |
4250 | tmp = NULL; | |
da2c4122 | 4251 | gfc_save_backend_locus (&loc); |
4252 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 4253 | gfc_start_block (&init); |
4254 | /* Zero the string length on entry. */ | |
4255 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4256 | build_int_cst (gfc_charlen_type_node, 0)); | |
4257 | /* Null the pointer. */ | |
4258 | e = gfc_lval_expr_from_sym (proc_sym); | |
4259 | gfc_init_se (&se, NULL); | |
4260 | se.want_pointer = 1; | |
4261 | gfc_conv_expr (&se, e); | |
4262 | gfc_free_expr (e); | |
4263 | tmp = se.expr; | |
4264 | gfc_add_modify (&init, tmp, | |
4265 | fold_convert (TREE_TYPE (se.expr), | |
4266 | null_pointer_node)); | |
da2c4122 | 4267 | gfc_restore_backend_locus (&loc); |
617125a6 | 4268 | |
4269 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 4270 | tmp = proc_sym->ts.u.cl->backend_decl; |
b345a09f | 4271 | if (TREE_CODE (tmp) != INDIRECT_REF |
4272 | && proc_sym->ts.u.cl->passed_length) | |
ddcfeaf1 | 4273 | { |
a4731200 | 4274 | tmp = proc_sym->ts.u.cl->passed_length; |
4275 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4276 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4277 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4278 | gfc_charlen_type_node, tmp, | |
4279 | proc_sym->ts.u.cl->backend_decl); | |
ddcfeaf1 | 4280 | } |
4281 | else | |
4282 | tmp = NULL_TREE; | |
4283 | ||
617125a6 | 4284 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4285 | } | |
fe732a9b | 4286 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
89ac8ba1 | 4287 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4288 | } |
4289 | else | |
829d7a08 | 4290 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4291 | } |
9ead5324 | 4292 | else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym)) |
4293 | { | |
4294 | /* Nullify explicit return class arrays on entry. */ | |
4295 | tree type; | |
4296 | tmp = get_proc_result (proc_sym); | |
4297 | if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp))) | |
4298 | { | |
4299 | gfc_start_block (&init); | |
4300 | tmp = gfc_class_data_get (tmp); | |
4301 | type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp)); | |
4302 | gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0)); | |
4303 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); | |
4304 | } | |
4305 | } | |
4306 | ||
4ee9c684 | 4307 | |
87114d2e | 4308 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4309 | should be done here so that the offsets and lbounds of arrays | |
4310 | are available. */ | |
da2c4122 | 4311 | gfc_save_backend_locus (&loc); |
4312 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4313 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4314 | gfc_restore_backend_locus (&loc); |
87114d2e | 4315 | |
4ee9c684 | 4316 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4317 | { | |
6b3ceb4e | 4318 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4319 | && (sym->ts.u.derived->attr.alloc_comp | |
4320 | || gfc_is_finalizable (sym->ts.u.derived, | |
4321 | NULL)); | |
8f3f9eab | 4322 | if (sym->assoc) |
3c82e013 | 4323 | continue; |
4324 | ||
9d958d5b | 4325 | if (sym->ts.type == BT_DERIVED |
4326 | && sym->ts.u.derived | |
4327 | && sym->ts.u.derived->attr.pdt_type) | |
4328 | { | |
4329 | is_pdt_type = true; | |
4330 | gfc_init_block (&tmpblock); | |
4331 | if (!(sym->attr.dummy | |
4332 | || sym->attr.pointer | |
4333 | || sym->attr.allocatable)) | |
4334 | { | |
4335 | tmp = gfc_allocate_pdt_comp (sym->ts.u.derived, | |
4336 | sym->backend_decl, | |
4337 | sym->as ? sym->as->rank : 0, | |
4338 | sym->param_list); | |
4339 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4340 | tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived, | |
4341 | sym->backend_decl, | |
4342 | sym->as ? sym->as->rank : 0); | |
4343 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); | |
4344 | } | |
4345 | else if (sym->attr.dummy) | |
4346 | { | |
4347 | tmp = gfc_check_pdt_dummy (sym->ts.u.derived, | |
4348 | sym->backend_decl, | |
4349 | sym->as ? sym->as->rank : 0, | |
4350 | sym->param_list); | |
4351 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4352 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4353 | } | |
4354 | } | |
4355 | else if (sym->ts.type == BT_CLASS | |
4356 | && CLASS_DATA (sym)->ts.u.derived | |
4357 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type) | |
4358 | { | |
4359 | gfc_component *data = CLASS_DATA (sym); | |
4360 | is_pdt_type = true; | |
4361 | gfc_init_block (&tmpblock); | |
4362 | if (!(sym->attr.dummy | |
4363 | || CLASS_DATA (sym)->attr.pointer | |
4364 | || CLASS_DATA (sym)->attr.allocatable)) | |
4365 | { | |
4366 | tmp = gfc_class_data_get (sym->backend_decl); | |
4367 | tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp, | |
4368 | data->as ? data->as->rank : 0, | |
4369 | sym->param_list); | |
4370 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4371 | tmp = gfc_class_data_get (sym->backend_decl); | |
4372 | tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp, | |
4373 | data->as ? data->as->rank : 0); | |
4374 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); | |
4375 | } | |
4376 | else if (sym->attr.dummy) | |
4377 | { | |
4378 | tmp = gfc_class_data_get (sym->backend_decl); | |
4379 | tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp, | |
4380 | data->as ? data->as->rank : 0, | |
4381 | sym->param_list); | |
4382 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4383 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4384 | } | |
4385 | } | |
4386 | ||
47e6a59a | 4387 | if (sym->attr.pointer && sym->attr.dimension |
0a5fd921 | 4388 | && sym->attr.save == SAVE_NONE |
47e6a59a | 4389 | && !sym->attr.use_assoc |
4390 | && !sym->attr.host_assoc | |
4391 | && !sym->attr.dummy | |
4392 | && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))) | |
a56d63bc | 4393 | { |
4394 | gfc_init_block (&tmpblock); | |
47e6a59a | 4395 | gfc_conv_descriptor_span_set (&tmpblock, sym->backend_decl, |
4396 | build_int_cst (gfc_array_index_type, 0)); | |
a56d63bc | 4397 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
4398 | NULL_TREE); | |
4399 | } | |
4400 | ||
85ae3cab | 4401 | if (sym->ts.type == BT_CLASS |
eb106faf | 4402 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4403 | && CLASS_DATA (sym)->attr.allocatable) |
4404 | { | |
4405 | tree vptr; | |
4406 | ||
4407 | if (UNLIMITED_POLY (sym)) | |
4408 | vptr = null_pointer_node; | |
4409 | else | |
4410 | { | |
4411 | gfc_symbol *vsym; | |
4412 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4413 | vptr = gfc_get_symbol_decl (vsym); | |
4414 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4415 | } | |
4416 | ||
4417 | if (CLASS_DATA (sym)->attr.dimension | |
4418 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4419 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4420 | { |
4421 | tmp = gfc_class_data_get (sym->backend_decl); | |
4422 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4423 | } | |
4424 | else | |
4425 | tmp = null_pointer_node; | |
4426 | ||
4427 | DECL_INITIAL (sym->backend_decl) | |
4428 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4429 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4430 | } | |
b345a09f | 4431 | else if ((sym->attr.dimension || sym->attr.codimension |
4432 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
4ee9c684 | 4433 | { |
c6793847 | 4434 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4435 | symbol_attribute *array_attr; | |
4436 | gfc_array_spec *as; | |
b345a09f | 4437 | array_type type_of_array; |
c6793847 | 4438 | |
4439 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4440 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4441 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
b345a09f | 4442 | type_of_array = as->type; |
4443 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4444 | type_of_array = AS_EXPLICIT; | |
4445 | switch (type_of_array) | |
4ee9c684 | 4446 | { |
4447 | case AS_EXPLICIT: | |
4448 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4449 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4450 | /* Allocatable and pointer arrays need to processed |
4451 | explicitly. */ | |
4452 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4453 | || (sym->ts.type == BT_CLASS | |
4454 | && CLASS_DATA (sym)->attr.class_pointer) | |
4455 | || array_attr->allocatable) | |
4ee9c684 | 4456 | { |
4457 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4458 | { |
4459 | gfc_save_backend_locus (&loc); | |
4460 | gfc_set_backend_locus (&sym->declared_at); | |
4461 | gfc_trans_static_array_pointer (sym); | |
4462 | gfc_restore_backend_locus (&loc); | |
4463 | } | |
4ee9c684 | 4464 | else |
25dd7350 | 4465 | { |
4466 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4467 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4468 | } |
4ee9c684 | 4469 | } |
c6793847 | 4470 | else if (sym->attr.codimension |
4471 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4472 | { |
4473 | gfc_init_block (&tmpblock); | |
4474 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4475 | &tmpblock, sym); | |
4476 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4477 | NULL_TREE); | |
4478 | continue; | |
4479 | } | |
197423f5 | 4480 | else |
4ee9c684 | 4481 | { |
da2c4122 | 4482 | gfc_save_backend_locus (&loc); |
4483 | gfc_set_backend_locus (&sym->declared_at); | |
4484 | ||
6b3ceb4e | 4485 | if (alloc_comp_or_fini) |
25dd7350 | 4486 | { |
4487 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4488 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4489 | } |
f0d4969f | 4490 | else if (sym->ts.type == BT_DERIVED |
4491 | && sym->value | |
4492 | && !sym->attr.data | |
4493 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4494 | { |
4495 | gfc_start_block (&tmpblock); | |
4496 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4497 | gfc_add_init_cleanup (block, |
c5faa799 | 4498 | gfc_finish_block (&tmpblock), |
4499 | NULL_TREE); | |
4500 | } | |
25dd7350 | 4501 | |
c5faa799 | 4502 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4503 | sym, block); |
4671339c | 4504 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4505 | } |
4506 | break; | |
4507 | ||
4508 | case AS_ASSUMED_SIZE: | |
4509 | /* Must be a dummy parameter. */ | |
c6793847 | 4510 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4511 | |
4512 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4513 | if (sym->attr.dummy) |
89ac8ba1 | 4514 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4515 | break; |
4ee9c684 | 4516 | |
4517 | case AS_ASSUMED_SHAPE: | |
4518 | /* Must be a dummy parameter. */ | |
22d678e8 | 4519 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4520 | |
89ac8ba1 | 4521 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4522 | break; |
4523 | ||
f00f6dd6 | 4524 | case AS_ASSUMED_RANK: |
4ee9c684 | 4525 | case AS_DEFERRED: |
25dd7350 | 4526 | seen_trans_deferred_array = true; |
89ac8ba1 | 4527 | gfc_trans_deferred_array (sym, block); |
b345a09f | 4528 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4529 | && sym->attr.result) | |
4530 | { | |
4531 | gfc_start_block (&init); | |
4532 | gfc_save_backend_locus (&loc); | |
4533 | gfc_set_backend_locus (&sym->declared_at); | |
4534 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4535 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4536 | } | |
4ee9c684 | 4537 | break; |
4538 | ||
4539 | default: | |
22d678e8 | 4540 | gcc_unreachable (); |
4ee9c684 | 4541 | } |
6b3ceb4e | 4542 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4543 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4544 | } |
fd23cc08 | 4545 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4546 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4547 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4548 | continue; |
617125a6 | 4549 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4550 | && (sym->attr.allocatable |
b345a09f | 4551 | || (sym->attr.pointer && sym->attr.result) |
456dd7d6 | 4552 | || (sym->ts.type == BT_CLASS |
4553 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4554 | { |
eb106faf | 4555 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4556 | { |
d0d776fb | 4557 | tree descriptor = NULL_TREE; |
4558 | ||
da2c4122 | 4559 | gfc_save_backend_locus (&loc); |
4560 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4561 | gfc_start_block (&init); |
617125a6 | 4562 | |
b345a09f | 4563 | if (!sym->attr.pointer) |
617125a6 | 4564 | { |
b345a09f | 4565 | /* Nullify and automatic deallocation of allocatable |
4566 | scalars. */ | |
4567 | e = gfc_lval_expr_from_sym (sym); | |
4568 | if (sym->ts.type == BT_CLASS) | |
4569 | gfc_add_data_component (e); | |
4570 | ||
4571 | gfc_init_se (&se, NULL); | |
4572 | if (sym->ts.type != BT_CLASS | |
4573 | || sym->ts.u.derived->attr.dimension | |
4574 | || sym->ts.u.derived->attr.codimension) | |
883d6776 | 4575 | { |
b345a09f | 4576 | se.want_pointer = 1; |
4577 | gfc_conv_expr (&se, e); | |
4578 | } | |
4579 | else if (sym->ts.type == BT_CLASS | |
4580 | && !CLASS_DATA (sym)->attr.dimension | |
4581 | && !CLASS_DATA (sym)->attr.codimension) | |
4582 | { | |
4583 | se.want_pointer = 1; | |
4584 | gfc_conv_expr (&se, e); | |
883d6776 | 4585 | } |
617125a6 | 4586 | else |
883d6776 | 4587 | { |
b345a09f | 4588 | se.descriptor_only = 1; |
4589 | gfc_conv_expr (&se, e); | |
4590 | descriptor = se.expr; | |
4591 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4592 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
883d6776 | 4593 | } |
b345a09f | 4594 | gfc_free_expr (e); |
617125a6 | 4595 | |
b345a09f | 4596 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
883d6776 | 4597 | { |
b345a09f | 4598 | /* Nullify when entering the scope. */ |
883d6776 | 4599 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
b345a09f | 4600 | TREE_TYPE (se.expr), se.expr, |
4601 | fold_convert (TREE_TYPE (se.expr), | |
4602 | null_pointer_node)); | |
883d6776 | 4603 | if (sym->attr.optional) |
4604 | { | |
4605 | tree present = gfc_conv_expr_present (sym); | |
4606 | tmp = build3_loc (input_location, COND_EXPR, | |
4607 | void_type_node, present, tmp, | |
4608 | build_empty_stmt (input_location)); | |
4609 | } | |
b345a09f | 4610 | gfc_add_expr_to_block (&init, tmp); |
883d6776 | 4611 | } |
617125a6 | 4612 | } |
b345a09f | 4613 | |
4614 | if ((sym->attr.dummy || sym->attr.result) | |
4615 | && sym->ts.type == BT_CHARACTER | |
4616 | && sym->ts.deferred | |
4617 | && sym->ts.u.cl->passed_length) | |
4618 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
da2c4122 | 4619 | else |
8c089b5c | 4620 | { |
4621 | gfc_restore_backend_locus (&loc); | |
4622 | tmp = NULL_TREE; | |
4623 | } | |
908e9973 | 4624 | |
4625 | /* Deallocate when leaving the scope. Nullifying is not | |
4626 | needed. */ | |
b345a09f | 4627 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
afb69dbf | 4628 | && !sym->ns->proc_name->attr.is_main_program) |
d0d776fb | 4629 | { |
4630 | if (sym->ts.type == BT_CLASS | |
4631 | && CLASS_DATA (sym)->attr.codimension) | |
4632 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4633 | NULL_TREE, NULL_TREE, | |
4634 | NULL_TREE, true, NULL, | |
3d2aa0e8 | 4635 | GFC_CAF_COARRAY_ANALYZE); |
d0d776fb | 4636 | else |
c23adf93 | 4637 | { |
4638 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
3d2aa0e8 | 4639 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4640 | NULL_TREE, | |
4641 | NULL_TREE, | |
4642 | true, expr, | |
4643 | sym->ts); | |
c23adf93 | 4644 | gfc_free_expr (expr); |
4645 | } | |
d0d776fb | 4646 | } |
b345a09f | 4647 | |
afc44c79 | 4648 | if (sym->ts.type == BT_CLASS) |
4649 | { | |
4650 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4651 | gfc_symbol *vtab; |
afc44c79 | 4652 | tree rhs; |
da2c4122 | 4653 | |
4654 | gfc_save_backend_locus (&loc); | |
4655 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4656 | e = gfc_lval_expr_from_sym (sym); |
4657 | gfc_add_vptr_component (e); | |
4658 | gfc_init_se (&se, NULL); | |
4659 | se.want_pointer = 1; | |
4660 | gfc_conv_expr (&se, e); | |
4661 | gfc_free_expr (e); | |
a90fe829 | 4662 | if (UNLIMITED_POLY (sym)) |
4663 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4664 | else | |
4665 | { | |
4666 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4667 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4668 | gfc_get_symbol_decl (vtab)); | |
4669 | } | |
afc44c79 | 4670 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4671 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4672 | } |
4673 | ||
89ac8ba1 | 4674 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4675 | } |
0a96a7cc | 4676 | } |
617125a6 | 4677 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4678 | { | |
4679 | tree tmp = NULL; | |
4680 | stmtblock_t init; | |
4681 | ||
4682 | /* If we get to here, all that should be left are pointers. */ | |
4683 | gcc_assert (sym->attr.pointer); | |
4684 | ||
4685 | if (sym->attr.dummy) | |
4686 | { | |
4687 | gfc_start_block (&init); | |
b345a09f | 4688 | gfc_save_backend_locus (&loc); |
4689 | gfc_set_backend_locus (&sym->declared_at); | |
4690 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
617125a6 | 4691 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4692 | } | |
4693 | } | |
3e715c81 | 4694 | else if (sym->ts.deferred) |
4695 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4696 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4697 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4698 | else if (sym->ts.type == BT_CHARACTER) |
4699 | { | |
4671339c | 4700 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4701 | gfc_set_backend_locus (&sym->declared_at); |
4702 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4703 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4704 | else |
89ac8ba1 | 4705 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4706 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4707 | } |
c8f1568f | 4708 | else if (sym->attr.assign) |
4709 | { | |
4671339c | 4710 | gfc_save_backend_locus (&loc); |
c8f1568f | 4711 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4712 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4713 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4714 | } |
f0d4969f | 4715 | else if (sym->ts.type == BT_DERIVED |
4716 | && sym->value | |
4717 | && !sym->attr.data | |
4718 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4719 | { |
4720 | gfc_start_block (&tmpblock); | |
4721 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4722 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4723 | NULL_TREE); |
4724 | } | |
9d958d5b | 4725 | else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type) |
22d678e8 | 4726 | gcc_unreachable (); |
4ee9c684 | 4727 | } |
4728 | ||
c5faa799 | 4729 | gfc_init_block (&tmpblock); |
d4163395 | 4730 | |
6777213b | 4731 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4732 | { |
4733 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4734 | { | |
eeebe20b | 4735 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4736 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4737 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4738 | } |
1e853e89 | 4739 | } |
d4163395 | 4740 | |
4741 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4742 | && current_fake_result_decl != NULL) | |
4743 | { | |
eeebe20b | 4744 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4745 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4746 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4747 | } |
4748 | ||
89ac8ba1 | 4749 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4750 | } |
4751 | ||
b345a09f | 4752 | |
b594087e | 4753 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4754 | { |
2ef51f0e | 4755 | typedef const char *compare_type; |
df4d540f | 4756 | |
2ef51f0e | 4757 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4758 | static bool | |
4759 | equal (module_htab_entry *a, const char *b) | |
4760 | { | |
4761 | return !strcmp (a->name, b); | |
4762 | } | |
4763 | }; | |
4764 | ||
4765 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4766 | |
4767 | /* Hash and equality functions for module_htab's decls. */ | |
4768 | ||
2ef51f0e | 4769 | hashval_t |
4770 | module_decl_hasher::hash (tree t) | |
df4d540f | 4771 | { |
df4d540f | 4772 | const_tree n = DECL_NAME (t); |
4773 | if (n == NULL_TREE) | |
4774 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4775 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4776 | } |
4777 | ||
2ef51f0e | 4778 | bool |
4779 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4780 | { |
df4d540f | 4781 | const_tree n1 = DECL_NAME (t1); |
4782 | if (n1 == NULL_TREE) | |
4783 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4784 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4785 | } |
4786 | ||
4787 | struct module_htab_entry * | |
4788 | gfc_find_module (const char *name) | |
4789 | { | |
df4d540f | 4790 | if (! module_htab) |
2ef51f0e | 4791 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4792 | |
2ef51f0e | 4793 | module_htab_entry **slot |
4794 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4795 | if (*slot == NULL) |
4796 | { | |
25a27413 | 4797 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4798 | |
dc326dc0 | 4799 | entry->name = gfc_get_string ("%s", name); |
2ef51f0e | 4800 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4801 | *slot = entry; | |
df4d540f | 4802 | } |
2ef51f0e | 4803 | return *slot; |
df4d540f | 4804 | } |
4805 | ||
4806 | void | |
4807 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4808 | { | |
df4d540f | 4809 | const char *name; |
4810 | ||
4811 | if (DECL_NAME (decl)) | |
4812 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4813 | else | |
4814 | { | |
4815 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4816 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4817 | } | |
2ef51f0e | 4818 | tree *slot |
4819 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4820 | INSERT); | |
df4d540f | 4821 | if (*slot == NULL) |
2ef51f0e | 4822 | *slot = decl; |
df4d540f | 4823 | } |
4824 | ||
c40a5c1b | 4825 | |
4826 | /* Generate debugging symbols for namelists. This function must come after | |
4827 | generate_local_decl to ensure that the variables in the namelist are | |
4828 | already declared. */ | |
4829 | ||
4830 | static tree | |
4831 | generate_namelist_decl (gfc_symbol * sym) | |
4832 | { | |
4833 | gfc_namelist *nml; | |
4834 | tree decl; | |
4835 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4836 | ||
4837 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4838 | for (nml = sym->namelist; nml; nml = nml->next) | |
4839 | { | |
4840 | if (nml->sym->backend_decl == NULL_TREE) | |
4841 | { | |
4842 | nml->sym->attr.referenced = 1; | |
4843 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4844 | } | |
0a32260c | 4845 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4846 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4847 | } | |
4848 | ||
4849 | decl = make_node (NAMELIST_DECL); | |
4850 | TREE_TYPE (decl) = void_type_node; | |
4851 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4852 | DECL_NAME (decl) = get_identifier (sym->name); | |
4853 | return decl; | |
4854 | } | |
4855 | ||
4856 | ||
4ee9c684 | 4857 | /* Output an initialized decl for a module variable. */ |
4858 | ||
4859 | static void | |
4860 | gfc_create_module_variable (gfc_symbol * sym) | |
4861 | { | |
4862 | tree decl; | |
4ee9c684 | 4863 | |
d77f260f | 4864 | /* Module functions with alternate entries are dealt with later and |
4865 | would get caught by the next condition. */ | |
4866 | if (sym->attr.entry) | |
4867 | return; | |
4868 | ||
c5d33754 | 4869 | /* Make sure we convert the types of the derived types from iso_c_binding |
4870 | into (void *). */ | |
4871 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4872 | && sym->ts.type == BT_DERIVED) | |
4873 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4874 | ||
d7cd448a | 4875 | if (gfc_fl_struct (sym->attr.flavor) |
df4d540f | 4876 | && sym->backend_decl |
4877 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4878 | { | |
4879 | decl = sym->backend_decl; | |
4880 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4881 | |
fe9d2f5a | 4882 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 4883 | { |
4884 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4885 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4886 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4887 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4888 | == sym->ns->proc_name->backend_decl); | |
4889 | } | |
df4d540f | 4890 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4891 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4892 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4893 | } | |
4894 | ||
cf269acc | 4895 | /* Only output variables, procedure pointers and array valued, |
4896 | or derived type, parameters. */ | |
4ee9c684 | 4897 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4898 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4899 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4900 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4901 | return; |
4902 | ||
df4d540f | 4903 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4904 | { | |
4905 | decl = sym->backend_decl; | |
16a40513 | 4906 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4907 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4908 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4909 | gfc_module_add_decl (cur_module, decl); | |
4910 | } | |
4911 | ||
d43a7f7f | 4912 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4913 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 4914 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4915 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4916 | return; |
4917 | ||
2b685f8e | 4918 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4919 | if (sym->backend_decl |
df4d540f | 4920 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4921 | return; | |
2b685f8e | 4922 | |
23d075f4 | 4923 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4924 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4925 | sym->name); | |
4ee9c684 | 4926 | |
92983bfd | 4927 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4928 | && (sym->attr.access == ACCESS_UNKNOWN | |
4929 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4930 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4931 | && flag_module_private)))) |
92983bfd | 4932 | sym->attr.access = ACCESS_PRIVATE; |
4933 | ||
4934 | if (warn_unused_variable && !sym->attr.referenced | |
4935 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4936 | gfc_warning (OPT_Wunused_value, |
4937 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4938 | sym->name, &sym->declared_at); |
4939 | ||
4ee9c684 | 4940 | /* We always want module variables to be created. */ |
4941 | sym->attr.referenced = 1; | |
4942 | /* Create the decl. */ | |
4943 | decl = gfc_get_symbol_decl (sym); | |
4944 | ||
4ee9c684 | 4945 | /* Create the variable. */ |
4946 | pushdecl (decl); | |
8b7e5587 | 4947 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
4948 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
4949 | && sym->fn_result_spec)); | |
df4d540f | 4950 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
b2c4af5e | 4951 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4952 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4953 | |
4954 | /* Also add length of strings. */ | |
4955 | if (sym->ts.type == BT_CHARACTER) | |
4956 | { | |
4957 | tree length; | |
4958 | ||
eeebe20b | 4959 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4960 | gcc_assert (length || sym->attr.proc_pointer); |
4961 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4962 | { |
4963 | pushdecl (length); | |
b2c4af5e | 4964 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4965 | } |
4966 | } | |
a961ca30 | 4967 | |
4968 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4969 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4970 | has_coarray_vars = true; | |
4ee9c684 | 4971 | } |
4972 | ||
51d9479b | 4973 | /* Emit debug information for USE statements. */ |
df4d540f | 4974 | |
4975 | static void | |
4976 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4977 | { | |
4978 | gfc_use_list *use_stmt; | |
4979 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4980 | { | |
4981 | struct module_htab_entry *entry | |
4982 | = gfc_find_module (use_stmt->module_name); | |
4983 | gfc_use_rename *rent; | |
4984 | ||
4985 | if (entry->namespace_decl == NULL) | |
4986 | { | |
4987 | entry->namespace_decl | |
e60a6f7b | 4988 | = build_decl (input_location, |
4989 | NAMESPACE_DECL, | |
df4d540f | 4990 | get_identifier (use_stmt->module_name), |
4991 | void_type_node); | |
4992 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4993 | } | |
51d9479b | 4994 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4995 | if (!use_stmt->only_flag) |
4996 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4997 | NULL_TREE, | |
4998 | ns->proc_name->backend_decl, | |
41d01e67 | 4999 | false, false); |
df4d540f | 5000 | for (rent = use_stmt->rename; rent; rent = rent->next) |
5001 | { | |
5002 | tree decl, local_name; | |
df4d540f | 5003 | |
5004 | if (rent->op != INTRINSIC_NONE) | |
5005 | continue; | |
5006 | ||
2ef51f0e | 5007 | hashval_t hash = htab_hash_string (rent->use_name); |
5008 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
5009 | INSERT); | |
df4d540f | 5010 | if (*slot == NULL) |
5011 | { | |
5012 | gfc_symtree *st; | |
5013 | ||
5014 | st = gfc_find_symtree (ns->sym_root, | |
5015 | rent->local_name[0] | |
5016 | ? rent->local_name : rent->use_name); | |
c2958b6b | 5017 | |
5018 | /* The following can happen if a derived type is renamed. */ | |
5019 | if (!st) | |
5020 | { | |
5021 | char *name; | |
5022 | name = xstrdup (rent->local_name[0] | |
5023 | ? rent->local_name : rent->use_name); | |
5024 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
5025 | st = gfc_find_symtree (ns->sym_root, name); | |
5026 | free (name); | |
5027 | gcc_assert (st); | |
5028 | } | |
857c96ba | 5029 | |
5030 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
5031 | local symbol (see PR41062). */ | |
5032 | if (!st->n.sym->attr.use_assoc) | |
5033 | continue; | |
5034 | ||
51d9479b | 5035 | if (st->n.sym->backend_decl |
5036 | && DECL_P (st->n.sym->backend_decl) | |
5037 | && st->n.sym->module | |
5038 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 5039 | { |
51d9479b | 5040 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
fe732a9b | 5041 | || !VAR_P (st->n.sym->backend_decl)); |
df4d540f | 5042 | decl = copy_node (st->n.sym->backend_decl); |
5043 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5044 | DECL_EXTERNAL (decl) = 1; | |
5045 | DECL_IGNORED_P (decl) = 0; | |
5046 | DECL_INITIAL (decl) = NULL_TREE; | |
5047 | } | |
c40a5c1b | 5048 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
5049 | && st->n.sym->attr.use_only | |
5050 | && st->n.sym->module | |
5051 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
5052 | == 0) | |
5053 | { | |
5054 | decl = generate_namelist_decl (st->n.sym); | |
5055 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5056 | DECL_EXTERNAL (decl) = 1; | |
5057 | DECL_IGNORED_P (decl) = 0; | |
5058 | DECL_INITIAL (decl) = NULL_TREE; | |
5059 | } | |
df4d540f | 5060 | else |
5061 | { | |
5062 | *slot = error_mark_node; | |
2ef51f0e | 5063 | entry->decls->clear_slot (slot); |
df4d540f | 5064 | continue; |
5065 | } | |
5066 | *slot = decl; | |
5067 | } | |
5068 | decl = (tree) *slot; | |
5069 | if (rent->local_name[0]) | |
5070 | local_name = get_identifier (rent->local_name); | |
5071 | else | |
5072 | local_name = NULL_TREE; | |
51d9479b | 5073 | gfc_set_backend_locus (&rent->where); |
df4d540f | 5074 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
5075 | ns->proc_name->backend_decl, | |
41d01e67 | 5076 | !use_stmt->only_flag, |
5077 | false); | |
df4d540f | 5078 | } |
5079 | } | |
4ee9c684 | 5080 | } |
5081 | ||
51d9479b | 5082 | |
2eb674c9 | 5083 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
5084 | will handle. */ | |
5085 | ||
5086 | static bool | |
5087 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
5088 | bool pointer) | |
5089 | { | |
5090 | gfc_constructor *c; | |
5091 | gfc_component *cm; | |
5092 | ||
5093 | if (pointer) | |
5094 | return true; | |
5095 | else if (array) | |
5096 | { | |
5097 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
5098 | return true; | |
5099 | else if (expr->expr_type == EXPR_STRUCTURE) | |
5100 | return check_constant_initializer (expr, ts, false, false); | |
5101 | else if (expr->expr_type != EXPR_ARRAY) | |
5102 | return false; | |
126387b5 | 5103 | for (c = gfc_constructor_first (expr->value.constructor); |
5104 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 5105 | { |
5106 | if (c->iterator) | |
5107 | return false; | |
5108 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
5109 | { | |
5110 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
5111 | return false; | |
5112 | } | |
5113 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
5114 | return false; | |
5115 | } | |
5116 | return true; | |
5117 | } | |
5118 | else switch (ts->type) | |
5119 | { | |
d7cd448a | 5120 | case_bt_struct: |
2eb674c9 | 5121 | if (expr->expr_type != EXPR_STRUCTURE) |
5122 | return false; | |
eeebe20b | 5123 | cm = expr->ts.u.derived->components; |
126387b5 | 5124 | for (c = gfc_constructor_first (expr->value.constructor); |
5125 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 5126 | { |
5127 | if (!c->expr || cm->attr.allocatable) | |
5128 | continue; | |
5129 | if (!check_constant_initializer (c->expr, &cm->ts, | |
5130 | cm->attr.dimension, | |
5131 | cm->attr.pointer)) | |
5132 | return false; | |
5133 | } | |
5134 | return true; | |
5135 | default: | |
5136 | return expr->expr_type == EXPR_CONSTANT; | |
5137 | } | |
5138 | } | |
5139 | ||
5140 | /* Emit debug info for parameters and unreferenced variables with | |
5141 | initializers. */ | |
5142 | ||
5143 | static void | |
5144 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
5145 | { | |
5146 | tree decl; | |
5147 | ||
5148 | if (sym->attr.flavor != FL_PARAMETER | |
5149 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
5150 | return; | |
5151 | ||
5152 | if (sym->backend_decl != NULL | |
5153 | || sym->value == NULL | |
5154 | || sym->attr.use_assoc | |
5155 | || sym->attr.dummy | |
5156 | || sym->attr.result | |
5157 | || sym->attr.function | |
5158 | || sym->attr.intrinsic | |
5159 | || sym->attr.pointer | |
5160 | || sym->attr.allocatable | |
5161 | || sym->attr.cray_pointee | |
5162 | || sym->attr.threadprivate | |
5163 | || sym->attr.is_bind_c | |
5164 | || sym->attr.subref_array_pointer | |
5165 | || sym->attr.assign) | |
5166 | return; | |
5167 | ||
5168 | if (sym->ts.type == BT_CHARACTER) | |
5169 | { | |
eeebe20b | 5170 | gfc_conv_const_charlen (sym->ts.u.cl); |
5171 | if (sym->ts.u.cl->backend_decl == NULL | |
5172 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 5173 | return; |
5174 | } | |
eeebe20b | 5175 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 5176 | return; |
5177 | ||
5178 | if (sym->as) | |
5179 | { | |
5180 | int n; | |
5181 | ||
5182 | if (sym->as->type != AS_EXPLICIT) | |
5183 | return; | |
5184 | for (n = 0; n < sym->as->rank; n++) | |
5185 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5186 | || sym->as->upper[n] == NULL | |
5187 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5188 | return; | |
5189 | } | |
5190 | ||
5191 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5192 | sym->attr.dimension, false)) | |
5193 | return; | |
5194 | ||
4fe73152 | 5195 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 5196 | return; |
5197 | ||
2eb674c9 | 5198 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 5199 | decl = build_decl (input_location, |
5200 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 5201 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5202 | if (sym->attr.flavor == FL_PARAMETER) | |
5203 | TREE_READONLY (decl) = 1; | |
5204 | gfc_set_decl_location (decl, &sym->declared_at); | |
5205 | if (sym->attr.dimension) | |
5206 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5207 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5208 | TREE_STATIC (decl) = 1; | |
5209 | TREE_USED (decl) = 1; | |
5210 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5211 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 5212 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5213 | TREE_TYPE (decl), | |
5214 | sym->attr.dimension, | |
5215 | false, false); | |
3a1c9df2 | 5216 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 5217 | } |
5218 | ||
a961ca30 | 5219 | |
5220 | static void | |
5221 | generate_coarray_sym_init (gfc_symbol *sym) | |
5222 | { | |
eee0cf09 | 5223 | tree tmp, size, decl, token, desc; |
bd47f0bc | 5224 | bool is_lock_type, is_event_type; |
498b946e | 5225 | int reg_type; |
eee0cf09 | 5226 | gfc_se se; |
5227 | symbol_attribute attr; | |
a961ca30 | 5228 | |
5229 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 5230 | || sym->attr.use_assoc || !sym->attr.referenced |
5231 | || sym->attr.select_type_temporary) | |
a961ca30 | 5232 | return; |
5233 | ||
5234 | decl = sym->backend_decl; | |
5235 | TREE_USED(decl) = 1; | |
5236 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5237 | ||
498b946e | 5238 | is_lock_type = sym->ts.type == BT_DERIVED |
5239 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5240 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5241 | ||
bd47f0bc | 5242 | is_event_type = sym->ts.type == BT_DERIVED |
5243 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5244 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5245 | ||
a961ca30 | 5246 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5247 | to make sure the variable is not optimized away. */ | |
5248 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5249 | ||
498b946e | 5250 | /* For lock types, we pass the array size as only the library knows the |
5251 | size of the variable. */ | |
bd47f0bc | 5252 | if (is_lock_type || is_event_type) |
498b946e | 5253 | size = gfc_index_one_node; |
5254 | else | |
5255 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 5256 | |
a90fe829 | 5257 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 5258 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5259 | fold_convert (size_type_node, size), | |
5260 | build_int_cst (size_type_node, 1)); | |
5261 | ||
a961ca30 | 5262 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5263 | { | |
5264 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5265 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 5266 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 5267 | } |
5268 | ||
5269 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5270 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5271 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 5272 | if (is_lock_type) |
5273 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 5274 | else if (is_event_type) |
5275 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 5276 | else |
5277 | reg_type = GFC_CAF_COARRAY_STATIC; | |
eee0cf09 | 5278 | |
f991680c | 5279 | /* Compile the symbol attribute. */ |
5280 | if (sym->ts.type == BT_CLASS) | |
5281 | { | |
5282 | attr = CLASS_DATA (sym)->attr; | |
5283 | /* The pointer attribute is always set on classes, overwrite it with the | |
5284 | class_pointer attribute, which denotes the pointer for classes. */ | |
5285 | attr.pointer = attr.class_pointer; | |
5286 | } | |
5287 | else | |
5288 | attr = sym->attr; | |
eee0cf09 | 5289 | gfc_init_se (&se, NULL); |
5290 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5291 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5292 | ||
5293 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
498b946e | 5294 | build_int_cst (integer_type_node, reg_type), |
eee0cf09 | 5295 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5296 | null_pointer_node, /* stat. */ | |
3d2aa0e8 | 5297 | null_pointer_node, /* errgmsg. */ |
5298 | integer_zero_node); /* errmsg_len. */ | |
eee0cf09 | 5299 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5300 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5301 | gfc_conv_descriptor_data_get (desc))); | |
a961ca30 | 5302 | |
a961ca30 | 5303 | /* Handle "static" initializer. */ |
5304 | if (sym->value) | |
5305 | { | |
5306 | sym->attr.pointer = 1; | |
5307 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5308 | true, false); | |
5309 | sym->attr.pointer = 0; | |
5310 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5311 | } | |
942ef29d | 5312 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp) |
5313 | { | |
5314 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as | |
5315 | ? sym->as->rank : 0, | |
5316 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY); | |
5317 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5318 | } | |
a961ca30 | 5319 | } |
5320 | ||
5321 | ||
5322 | /* Generate constructor function to initialize static, nonallocatable | |
5323 | coarrays. */ | |
5324 | ||
5325 | static void | |
5326 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5327 | { | |
5328 | tree fndecl, tmp, decl, save_fn_decl; | |
5329 | ||
5330 | save_fn_decl = current_function_decl; | |
5331 | push_function_context (); | |
5332 | ||
5333 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5334 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5335 | create_tmp_var_name ("_caf_init"), tmp); | |
5336 | ||
5337 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5338 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5339 | ||
5340 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5341 | DECL_ARTIFICIAL (decl) = 1; | |
5342 | DECL_IGNORED_P (decl) = 1; | |
5343 | DECL_CONTEXT (decl) = fndecl; | |
5344 | DECL_RESULT (fndecl) = decl; | |
5345 | ||
5346 | pushdecl (fndecl); | |
5347 | current_function_decl = fndecl; | |
5348 | announce_function (fndecl); | |
5349 | ||
5350 | rest_of_decl_compilation (fndecl, 0, 0); | |
5351 | make_decl_rtl (fndecl); | |
00cf115c | 5352 | allocate_struct_function (fndecl, false); |
a961ca30 | 5353 | |
cde2be84 | 5354 | pushlevel (); |
a961ca30 | 5355 | gfc_init_block (&caf_init_block); |
5356 | ||
5357 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5358 | ||
5359 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5360 | decl = getdecls (); | |
5361 | ||
cde2be84 | 5362 | poplevel (1, 1); |
a961ca30 | 5363 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5364 | ||
5365 | DECL_SAVED_TREE (fndecl) | |
5366 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5367 | DECL_INITIAL (fndecl)); | |
5368 | dump_function (TDI_original, fndecl); | |
5369 | ||
5370 | cfun->function_end_locus = input_location; | |
5371 | set_cfun (NULL); | |
5372 | ||
5373 | if (decl_function_context (fndecl)) | |
415d1b9a | 5374 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5375 | else |
35ee1c66 | 5376 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5377 | |
5378 | pop_function_context (); | |
5379 | current_function_decl = save_fn_decl; | |
5380 | } | |
5381 | ||
5382 | ||
c40a5c1b | 5383 | static void |
5384 | create_module_nml_decl (gfc_symbol *sym) | |
5385 | { | |
5386 | if (sym->attr.flavor == FL_NAMELIST) | |
5387 | { | |
5388 | tree decl = generate_namelist_decl (sym); | |
5389 | pushdecl (decl); | |
5390 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5391 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5392 | rest_of_decl_compilation (decl, 1, 0); | |
5393 | gfc_module_add_decl (cur_module, decl); | |
5394 | } | |
5395 | } | |
5396 | ||
5397 | ||
51d9479b | 5398 | /* Generate all the required code for module variables. */ |
5399 | ||
5400 | void | |
5401 | gfc_generate_module_vars (gfc_namespace * ns) | |
5402 | { | |
5403 | module_namespace = ns; | |
5404 | cur_module = gfc_find_module (ns->proc_name->name); | |
5405 | ||
5406 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5407 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5408 | ||
5409 | /* Generate COMMON blocks. */ | |
5410 | gfc_trans_common (ns); | |
5411 | ||
a961ca30 | 5412 | has_coarray_vars = false; |
5413 | ||
51d9479b | 5414 | /* Create decls for all the module variables. */ |
5415 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5416 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5417 | |
4fe73152 | 5418 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5419 | generate_coarray_init (ns); |
5420 | ||
51d9479b | 5421 | cur_module = NULL; |
5422 | ||
5423 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5424 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5425 | } |
5426 | ||
5427 | ||
4ee9c684 | 5428 | static void |
5429 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5430 | { | |
5431 | gfc_namespace *ns; | |
5432 | ||
5433 | /* We create all the prototypes before generating any code. */ | |
5434 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5435 | { | |
5436 | /* Skip namespaces from used modules. */ | |
5437 | if (ns->parent != parent) | |
5438 | continue; | |
5439 | ||
d896f9b3 | 5440 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5441 | } |
5442 | ||
5443 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5444 | { | |
5445 | /* Skip namespaces from used modules. */ | |
5446 | if (ns->parent != parent) | |
5447 | continue; | |
5448 | ||
5449 | gfc_generate_function_code (ns); | |
5450 | } | |
5451 | } | |
5452 | ||
5453 | ||
d95efb59 | 5454 | /* Drill down through expressions for the array specification bounds and |
5455 | character length calling generate_local_decl for all those variables | |
5456 | that have not already been declared. */ | |
5457 | ||
5458 | static void | |
5459 | generate_local_decl (gfc_symbol *); | |
5460 | ||
1acb400a | 5461 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5462 | |
1acb400a | 5463 | static bool |
5464 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5465 | int *f ATTRIBUTE_UNUSED) | |
5466 | { | |
5467 | if (e->expr_type != EXPR_VARIABLE | |
5468 | || sym == e->symtree->n.sym | |
d95efb59 | 5469 | || e->symtree->n.sym->mark |
5470 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5471 | return false; |
d95efb59 | 5472 | |
1acb400a | 5473 | generate_local_decl (e->symtree->n.sym); |
5474 | return false; | |
5475 | } | |
d95efb59 | 5476 | |
1acb400a | 5477 | static void |
5478 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5479 | { | |
5480 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5481 | } |
5482 | ||
5483 | ||
f6d0e37a | 5484 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5485 | |
5486 | static void | |
5487 | generate_dependency_declarations (gfc_symbol *sym) | |
5488 | { | |
5489 | int i; | |
5490 | ||
5491 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5492 | && sym->ts.u.cl |
5493 | && sym->ts.u.cl->length | |
5494 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5495 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5496 | |
5497 | if (sym->as && sym->as->rank) | |
5498 | { | |
5499 | for (i = 0; i < sym->as->rank; i++) | |
5500 | { | |
5501 | generate_expr_decls (sym, sym->as->lower[i]); | |
5502 | generate_expr_decls (sym, sym->as->upper[i]); | |
5503 | } | |
5504 | } | |
5505 | } | |
5506 | ||
5507 | ||
4ee9c684 | 5508 | /* Generate decls for all local variables. We do this to ensure correct |
5509 | handling of expressions which only appear in the specification of | |
5510 | other functions. */ | |
5511 | ||
5512 | static void | |
5513 | generate_local_decl (gfc_symbol * sym) | |
5514 | { | |
5515 | if (sym->attr.flavor == FL_VARIABLE) | |
5516 | { | |
a961ca30 | 5517 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5518 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5519 | has_coarray_vars = true; | |
5520 | ||
d95efb59 | 5521 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5522 | generate_dependency_declarations (sym); |
d95efb59 | 5523 | |
4ee9c684 | 5524 | if (sym->attr.referenced) |
8714fc76 | 5525 | gfc_get_symbol_decl (sym); |
4acad347 | 5526 | |
5527 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5528 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5529 | { |
4acad347 | 5530 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5531 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5532 | { |
5533 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5534 | gfc_warning (OPT_Wunused_dummy_argument, |
5535 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5536 | "INTENT(OUT) but was not set", sym->name, |
5537 | &sym->declared_at); | |
48cb4748 | 5538 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5539 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5540 | gfc_warning (OPT_Wunused_dummy_argument, |
5541 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5542 | "declared INTENT(OUT) but was not set and " |
5543 | "does not have a default initializer", | |
5544 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5545 | if (sym->backend_decl != NULL_TREE) |
5546 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5547 | } |
8290d53f | 5548 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5549 | { |
4166acc7 | 5550 | gfc_warning (OPT_Wunused_dummy_argument, |
5551 | "Unused dummy argument %qs at %L", sym->name, | |
5552 | &sym->declared_at); | |
90a4a5a6 | 5553 | if (sym->backend_decl != NULL_TREE) |
5554 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5555 | } | |
7c0ca46e | 5556 | } |
4acad347 | 5557 | |
f888a3fb | 5558 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5559 | block or a namelist. */ |
36609028 | 5560 | else if (warn_unused_variable |
1dbfac29 | 5561 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5562 | { |
1dbfac29 | 5563 | if (sym->attr.use_only) |
5564 | { | |
4166acc7 | 5565 | gfc_warning (OPT_Wunused_variable, |
5566 | "Unused module variable %qs which has been " | |
1dbfac29 | 5567 | "explicitly imported at %L", sym->name, |
5568 | &sym->declared_at); | |
5569 | if (sym->backend_decl != NULL_TREE) | |
5570 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5571 | } | |
5572 | else if (!sym->attr.use_assoc) | |
5573 | { | |
99af6e70 | 5574 | /* Corner case: the symbol may be an entry point. At this point, |
5575 | it may appear to be an unused variable. Suppress warning. */ | |
5576 | bool enter = false; | |
5577 | gfc_entry_list *el; | |
5578 | ||
5579 | for (el = sym->ns->entries; el; el=el->next) | |
5580 | if (strcmp(sym->name, el->sym->name) == 0) | |
5581 | enter = true; | |
5582 | ||
5583 | if (!enter) | |
5584 | gfc_warning (OPT_Wunused_variable, | |
5585 | "Unused variable %qs declared at %L", | |
5586 | sym->name, &sym->declared_at); | |
1dbfac29 | 5587 | if (sym->backend_decl != NULL_TREE) |
5588 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5589 | } | |
90a4a5a6 | 5590 | } |
8714fc76 | 5591 | |
d4163395 | 5592 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5593 | references the length variable, so force gfc_get_symbol_decl | |
5594 | even when not referenced. If optimize > 0, it will be optimized | |
5595 | away anyway. But do this only after emitting -Wunused-parameter | |
5596 | warning if requested. */ | |
8714fc76 | 5597 | if (sym->attr.dummy && !sym->attr.referenced |
5598 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5599 | && sym->ts.u.cl->backend_decl != NULL |
fe732a9b | 5600 | && VAR_P (sym->ts.u.cl->backend_decl)) |
d4163395 | 5601 | { |
5602 | sym->attr.referenced = 1; | |
5603 | gfc_get_symbol_decl (sym); | |
5604 | } | |
76776e6d | 5605 | |
d0163401 | 5606 | /* INTENT(out) dummy arguments and result variables with allocatable |
5607 | components are reset by default and need to be set referenced to | |
5608 | generate the code for nullification and automatic lengths. */ | |
5609 | if (!sym->attr.referenced | |
8714fc76 | 5610 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5611 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5612 | && !sym->attr.pointer |
d0163401 | 5613 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5614 | || | |
5615 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5616 | { |
5617 | sym->attr.referenced = 1; | |
5618 | gfc_get_symbol_decl (sym); | |
5619 | } | |
5620 | ||
e72f979a | 5621 | /* Check for dependencies in the array specification and string |
5622 | length, adding the necessary declarations to the function. We | |
5623 | mark the symbol now, as well as in traverse_ns, to prevent | |
5624 | getting stuck in a circular dependency. */ | |
5625 | sym->mark = 1; | |
4ee9c684 | 5626 | } |
5dd246c1 | 5627 | else if (sym->attr.flavor == FL_PARAMETER) |
5628 | { | |
6ecfe89d | 5629 | if (warn_unused_parameter |
f326eb81 | 5630 | && !sym->attr.referenced) |
5631 | { | |
5632 | if (!sym->attr.use_assoc) | |
4166acc7 | 5633 | gfc_warning (OPT_Wunused_parameter, |
5634 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5635 | &sym->declared_at); |
5636 | else if (sym->attr.use_only) | |
4166acc7 | 5637 | gfc_warning (OPT_Wunused_parameter, |
5638 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5639 | "imported at %L", sym->name, &sym->declared_at); |
5640 | } | |
758c9897 | 5641 | |
5642 | if (sym->ns | |
5643 | && sym->ns->parent | |
5644 | && sym->ns->parent->code | |
5645 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5646 | { | |
5647 | if (sym->attr.referenced) | |
5648 | gfc_get_symbol_decl (sym); | |
5649 | sym->mark = 1; | |
5650 | } | |
5dd246c1 | 5651 | } |
fa7b6574 | 5652 | else if (sym->attr.flavor == FL_PROCEDURE) |
5653 | { | |
5654 | /* TODO: move to the appropriate place in resolve.c. */ | |
8b72061f | 5655 | if (warn_return_type > 0 |
fa7b6574 | 5656 | && sym->attr.function |
5657 | && sym->result | |
5658 | && sym != sym->result | |
5659 | && !sym->result->attr.referenced | |
5660 | && !sym->attr.use_assoc | |
5661 | && sym->attr.if_source != IFSRC_IFBODY) | |
5662 | { | |
4166acc7 | 5663 | gfc_warning (OPT_Wreturn_type, |
5664 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5665 | "%L not set", sym->result->name, sym->name, |
5666 | &sym->result->declared_at); | |
5667 | ||
5668 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5669 | sym->result->mark = 1; |
fa7b6574 | 5670 | } |
5671 | } | |
c5d33754 | 5672 | |
19ba2ad8 | 5673 | if (sym->attr.dummy == 1) |
5674 | { | |
5675 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5676 | procedures if they are passed by value. The tree type for them will | |
5677 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5678 | what C would do with characters passed by-value. The value attribute | |
5679 | implies the dummy is a scalar. */ | |
5680 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5681 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5682 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5683 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5684 | |
5685 | /* Unused procedure passed as dummy argument. */ | |
5686 | if (sym->attr.flavor == FL_PROCEDURE) | |
5687 | { | |
5688 | if (!sym->attr.referenced) | |
5689 | { | |
8290d53f | 5690 | if (warn_unused_dummy_argument) |
4166acc7 | 5691 | gfc_warning (OPT_Wunused_dummy_argument, |
5692 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5693 | &sym->declared_at); |
fc6338c7 | 5694 | } |
5695 | ||
5696 | /* Silence bogus "unused parameter" warnings from the | |
5697 | middle end. */ | |
5698 | if (sym->backend_decl != NULL_TREE) | |
5699 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5700 | } | |
19ba2ad8 | 5701 | } |
5702 | ||
c5d33754 | 5703 | /* Make sure we convert the types of the derived types from iso_c_binding |
5704 | into (void *). */ | |
5705 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5706 | && sym->ts.type == BT_DERIVED) | |
5707 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5708 | } |
5709 | ||
c40a5c1b | 5710 | |
5711 | static void | |
5712 | generate_local_nml_decl (gfc_symbol * sym) | |
5713 | { | |
5714 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5715 | { | |
5716 | tree decl = generate_namelist_decl (sym); | |
5717 | pushdecl (decl); | |
5718 | } | |
5719 | } | |
5720 | ||
5721 | ||
4ee9c684 | 5722 | static void |
5723 | generate_local_vars (gfc_namespace * ns) | |
5724 | { | |
5725 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5726 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5727 | } |
5728 | ||
5729 | ||
1b716045 | 5730 | /* Generate a switch statement to jump to the correct entry point. Also |
5731 | creates the label decls for the entry points. */ | |
4ee9c684 | 5732 | |
1b716045 | 5733 | static tree |
5734 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5735 | { |
1b716045 | 5736 | stmtblock_t block; |
5737 | tree label; | |
5738 | tree tmp; | |
5739 | tree val; | |
4ee9c684 | 5740 | |
1b716045 | 5741 | gfc_init_block (&block); |
5742 | for (; el; el = el->next) | |
5743 | { | |
5744 | /* Add the case label. */ | |
b797d6d3 | 5745 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5746 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5747 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5748 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5749 | |
1b716045 | 5750 | /* And jump to the actual entry point. */ |
5751 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5752 | tmp = build1_v (GOTO_EXPR, label); |
5753 | gfc_add_expr_to_block (&block, tmp); | |
5754 | ||
5755 | /* Save the label decl. */ | |
5756 | el->label = label; | |
5757 | } | |
5758 | tmp = gfc_finish_block (&block); | |
5759 | /* The first argument selects the entry point. */ | |
5760 | val = DECL_ARGUMENTS (current_function_decl); | |
bd37ce3e | 5761 | tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp); |
1b716045 | 5762 | return tmp; |
4ee9c684 | 5763 | } |
5764 | ||
6374121b | 5765 | |
a4abf8a0 | 5766 | /* Add code to string lengths of actual arguments passed to a function against |
5767 | the expected lengths of the dummy arguments. */ | |
5768 | ||
5769 | static void | |
5770 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5771 | { | |
5772 | gfc_formal_arglist *formal; | |
5773 | ||
6777213b | 5774 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5775 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5776 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5777 | { |
5778 | enum tree_code comparison; | |
5779 | tree cond; | |
5780 | tree argname; | |
5781 | gfc_symbol *fsym; | |
5782 | gfc_charlen *cl; | |
5783 | const char *message; | |
5784 | ||
5785 | fsym = formal->sym; | |
eeebe20b | 5786 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5787 | |
5788 | gcc_assert (cl); | |
5789 | gcc_assert (cl->passed_length != NULL_TREE); | |
5790 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5791 | ||
5792 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5793 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5794 | that the actual string length is *at least* the expected one. |
5795 | Sequence association allows for a mismatch of the string length | |
5796 | if the actual argument is (part of) an array, but only if the | |
5797 | dummy argument is an array. (See "Sequence association" in | |
5798 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5799 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5800 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5801 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5802 | { |
5803 | comparison = NE_EXPR; | |
5804 | message = _("Actual string length does not match the declared one" | |
5805 | " for dummy argument '%s' (%ld/%ld)"); | |
5806 | } | |
be4be771 | 5807 | else if (fsym->as && fsym->as->rank != 0) |
5808 | continue; | |
a4abf8a0 | 5809 | else |
5810 | { | |
5811 | comparison = LT_EXPR; | |
5812 | message = _("Actual string length is shorter than the declared one" | |
5813 | " for dummy argument '%s' (%ld/%ld)"); | |
5814 | } | |
5815 | ||
5816 | /* Build the condition. For optional arguments, an actual length | |
5817 | of 0 is also acceptable if the associated string is NULL, which | |
5818 | means the argument was not passed. */ | |
4c796f54 | 5819 | cond = fold_build2_loc (input_location, comparison, logical_type_node, |
fd779e1d | 5820 | cl->passed_length, cl->backend_decl); |
a4abf8a0 | 5821 | if (fsym->attr.optional) |
5822 | { | |
5823 | tree not_absent; | |
5824 | tree not_0length; | |
5825 | tree absent_failed; | |
5826 | ||
fd779e1d | 5827 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4c796f54 | 5828 | logical_type_node, |
fd779e1d | 5829 | cl->passed_length, |
385f3f36 | 5830 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5831 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5832 | fsym->attr.referenced = 1; | |
5833 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5834 | |
fd779e1d | 5835 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4c796f54 | 5836 | logical_type_node, not_0length, |
fd779e1d | 5837 | not_absent); |
a4abf8a0 | 5838 | |
fd779e1d | 5839 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4c796f54 | 5840 | logical_type_node, cond, absent_failed); |
a4abf8a0 | 5841 | } |
5842 | ||
5843 | /* Build the runtime check. */ | |
5844 | argname = gfc_build_cstring_const (fsym->name); | |
5845 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5846 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5847 | message, argname, | |
5848 | fold_convert (long_integer_type_node, | |
5849 | cl->passed_length), | |
5850 | fold_convert (long_integer_type_node, | |
5851 | cl->backend_decl)); | |
5852 | } | |
5853 | } | |
5854 | ||
5855 | ||
7257a5d2 | 5856 | static void |
5857 | create_main_function (tree fndecl) | |
5858 | { | |
43702da6 | 5859 | tree old_context; |
7257a5d2 | 5860 | tree ftn_main; |
5861 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5862 | stmtblock_t body; | |
5863 | ||
43702da6 | 5864 | old_context = current_function_decl; |
5865 | ||
5866 | if (old_context) | |
5867 | { | |
5868 | push_function_context (); | |
5869 | saved_parent_function_decls = saved_function_decls; | |
5870 | saved_function_decls = NULL_TREE; | |
5871 | } | |
5872 | ||
7257a5d2 | 5873 | /* main() function must be declared with global scope. */ |
5874 | gcc_assert (current_function_decl == NULL_TREE); | |
5875 | ||
5876 | /* Declare the function. */ | |
5877 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5878 | build_pointer_type (pchar_type_node), | |
5879 | NULL_TREE); | |
0509d0ee | 5880 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5881 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5882 | main_identifier_node, tmp); | |
7257a5d2 | 5883 | DECL_EXTERNAL (ftn_main) = 0; |
5884 | TREE_PUBLIC (ftn_main) = 1; | |
5885 | TREE_STATIC (ftn_main) = 1; | |
5886 | DECL_ATTRIBUTES (ftn_main) | |
5887 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5888 | ||
5889 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5890 | result_decl = build_decl (input_location, |
5891 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5892 | DECL_ARTIFICIAL (result_decl) = 1; |
5893 | DECL_IGNORED_P (result_decl) = 1; | |
5894 | DECL_CONTEXT (result_decl) = ftn_main; | |
5895 | DECL_RESULT (ftn_main) = result_decl; | |
5896 | ||
5897 | pushdecl (ftn_main); | |
5898 | ||
5899 | /* Get the arguments. */ | |
5900 | ||
5901 | arglist = NULL_TREE; | |
5902 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5903 | ||
5904 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5905 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5906 | DECL_CONTEXT (argc) = ftn_main; |
5907 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5908 | TREE_READONLY (argc) = 1; | |
5909 | gfc_finish_decl (argc); | |
5910 | arglist = chainon (arglist, argc); | |
5911 | ||
5912 | typelist = TREE_CHAIN (typelist); | |
5913 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5914 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5915 | DECL_CONTEXT (argv) = ftn_main; |
5916 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5917 | TREE_READONLY (argv) = 1; | |
5918 | DECL_BY_REFERENCE (argv) = 1; | |
5919 | gfc_finish_decl (argv); | |
5920 | arglist = chainon (arglist, argv); | |
5921 | ||
5922 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5923 | current_function_decl = ftn_main; | |
5924 | announce_function (ftn_main); | |
5925 | ||
5926 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5927 | make_decl_rtl (ftn_main); | |
00cf115c | 5928 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5929 | pushlevel (); |
7257a5d2 | 5930 | |
5931 | gfc_init_block (&body); | |
5932 | ||
293d72e0 | 5933 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5934 | |
d44f2f7c | 5935 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5936 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5937 | { |
5938 | tree pint_type, pppchar_type; | |
5939 | pint_type = build_pointer_type (integer_type_node); | |
5940 | pppchar_type | |
5941 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5942 | ||
d44f2f7c | 5943 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5944 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5945 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5946 | gfc_add_expr_to_block (&body, tmp); |
5947 | } | |
5948 | ||
7257a5d2 | 5949 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5950 | TREE_USED (argc) = 1; |
5951 | TREE_USED (argv) = 1; | |
389dd41b | 5952 | tmp = build_call_expr_loc (input_location, |
5953 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5954 | gfc_add_expr_to_block (&body, tmp); |
5955 | ||
5956 | /* Add a call to set_options to set up the runtime library Fortran | |
5957 | language standard parameters. */ | |
5958 | { | |
5959 | tree array_type, array, var; | |
f1f41a6c | 5960 | vec<constructor_elt, va_gc> *v = NULL; |
f7619ded | 5961 | static const int noptions = 7; |
7257a5d2 | 5962 | |
f7619ded | 5963 | /* Passing a new option to the library requires three modifications: |
5964 | + add it to the tree_cons list below | |
5965 | + change the noptions variable above | |
7257a5d2 | 5966 | + modify the library (runtime/compile_options.c)! */ |
5967 | ||
06f13dc1 | 5968 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5969 | build_int_cst (integer_type_node, | |
5970 | gfc_option.warn_std)); | |
5971 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5972 | build_int_cst (integer_type_node, | |
5973 | gfc_option.allow_std)); | |
5974 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5975 | build_int_cst (integer_type_node, pedantic)); | |
06f13dc1 | 5976 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5977 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 5978 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5979 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 5980 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5981 | build_int_cst (integer_type_node, | |
5982 | (gfc_option.rtcheck | |
5983 | & GFC_RTCHECK_BOUNDS))); | |
5984 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5985 | build_int_cst (integer_type_node, | |
553e7cef | 5986 | gfc_option.fpe_summary)); |
7257a5d2 | 5987 | |
f7619ded | 5988 | array_type = build_array_type_nelts (integer_type_node, noptions); |
06f13dc1 | 5989 | array = build_constructor (array_type, v); |
7257a5d2 | 5990 | TREE_CONSTANT (array) = 1; |
5991 | TREE_STATIC (array) = 1; | |
5992 | ||
5993 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 5994 | var = build_decl (input_location, VAR_DECL, |
f7619ded | 5995 | create_tmp_var_name ("options"), array_type); |
bf77f8ee | 5996 | DECL_ARTIFICIAL (var) = 1; |
5997 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 5998 | TREE_CONSTANT (var) = 1; |
5999 | TREE_STATIC (var) = 1; | |
6000 | TREE_READONLY (var) = 1; | |
6001 | DECL_INITIAL (var) = array; | |
bf77f8ee | 6002 | pushdecl (var); |
7257a5d2 | 6003 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
6004 | ||
389dd41b | 6005 | tmp = build_call_expr_loc (input_location, |
6006 | gfor_fndecl_set_options, 2, | |
f7619ded | 6007 | build_int_cst (integer_type_node, noptions), var); |
7257a5d2 | 6008 | gfc_add_expr_to_block (&body, tmp); |
6009 | } | |
6010 | ||
6011 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
6012 | the library will raise a FPE when needed. */ | |
6013 | if (gfc_option.fpe != 0) | |
6014 | { | |
389dd41b | 6015 | tmp = build_call_expr_loc (input_location, |
6016 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 6017 | build_int_cst (integer_type_node, |
6018 | gfc_option.fpe)); | |
6019 | gfc_add_expr_to_block (&body, tmp); | |
6020 | } | |
6021 | ||
6022 | /* If this is the main program and an -fconvert option was provided, | |
6023 | add a call to set_convert. */ | |
6024 | ||
4fe73152 | 6025 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 6026 | { |
389dd41b | 6027 | tmp = build_call_expr_loc (input_location, |
6028 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 6029 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 6030 | gfc_add_expr_to_block (&body, tmp); |
6031 | } | |
6032 | ||
6033 | /* If this is the main program and an -frecord-marker option was provided, | |
6034 | add a call to set_record_marker. */ | |
6035 | ||
eb106faf | 6036 | if (flag_record_marker != 0) |
7257a5d2 | 6037 | { |
389dd41b | 6038 | tmp = build_call_expr_loc (input_location, |
6039 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 6040 | build_int_cst (integer_type_node, |
eb106faf | 6041 | flag_record_marker)); |
7257a5d2 | 6042 | gfc_add_expr_to_block (&body, tmp); |
6043 | } | |
6044 | ||
eb106faf | 6045 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 6046 | { |
389dd41b | 6047 | tmp = build_call_expr_loc (input_location, |
6048 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 6049 | build_int_cst (integer_type_node, |
eb106faf | 6050 | flag_max_subrecord_length)); |
7257a5d2 | 6051 | gfc_add_expr_to_block (&body, tmp); |
6052 | } | |
6053 | ||
6054 | /* Call MAIN__(). */ | |
389dd41b | 6055 | tmp = build_call_expr_loc (input_location, |
6056 | fndecl, 0); | |
7257a5d2 | 6057 | gfc_add_expr_to_block (&body, tmp); |
6058 | ||
43702da6 | 6059 | /* Mark MAIN__ as used. */ |
6060 | TREE_USED (fndecl) = 1; | |
6061 | ||
70b5944a | 6062 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 6063 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 6064 | { |
70b5944a | 6065 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
6066 | gfc_add_expr_to_block (&body, tmp); | |
6067 | } | |
6068 | ||
7257a5d2 | 6069 | /* "return 0". */ |
fd779e1d | 6070 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
6071 | DECL_RESULT (ftn_main), | |
6072 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 6073 | tmp = build1_v (RETURN_EXPR, tmp); |
6074 | gfc_add_expr_to_block (&body, tmp); | |
6075 | ||
6076 | ||
6077 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
6078 | decl = getdecls (); | |
6079 | ||
6080 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6081 | poplevel (1, 1); |
7257a5d2 | 6082 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
6083 | ||
6084 | DECL_SAVED_TREE (ftn_main) | |
6085 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
6086 | DECL_INITIAL (ftn_main)); | |
6087 | ||
6088 | /* Output the GENERIC tree. */ | |
6089 | dump_function (TDI_original, ftn_main); | |
6090 | ||
35ee1c66 | 6091 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 6092 | |
6093 | if (old_context) | |
6094 | { | |
6095 | pop_function_context (); | |
6096 | saved_function_decls = saved_parent_function_decls; | |
6097 | } | |
6098 | current_function_decl = old_context; | |
7257a5d2 | 6099 | } |
6100 | ||
6101 | ||
89ac8ba1 | 6102 | /* Generate an appropriate return-statement for a procedure. */ |
6103 | ||
6104 | tree | |
6105 | gfc_generate_return (void) | |
6106 | { | |
6107 | gfc_symbol* sym; | |
6108 | tree result; | |
6109 | tree fndecl; | |
6110 | ||
6111 | sym = current_procedure_symbol; | |
6112 | fndecl = sym->backend_decl; | |
6113 | ||
6114 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
6115 | result = NULL_TREE; | |
6116 | else | |
6117 | { | |
6118 | result = get_proc_result (sym); | |
6119 | ||
6120 | /* Set the return value to the dummy result variable. The | |
6121 | types may be different for scalar default REAL functions | |
6122 | with -ff2c, therefore we have to convert. */ | |
6123 | if (result != NULL_TREE) | |
6124 | { | |
6125 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 6126 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
6127 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
6128 | result); | |
89ac8ba1 | 6129 | } |
6130 | } | |
6131 | ||
6132 | return build1_v (RETURN_EXPR, result); | |
6133 | } | |
6134 | ||
6135 | ||
d566c3e0 | 6136 | static void |
6137 | is_from_ieee_module (gfc_symbol *sym) | |
6138 | { | |
6139 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6140 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6141 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6142 | seen_ieee_symbol = 1; | |
6143 | } | |
6144 | ||
6145 | ||
6146 | static int | |
6147 | is_ieee_module_used (gfc_namespace *ns) | |
6148 | { | |
6149 | seen_ieee_symbol = 0; | |
6150 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6151 | return seen_ieee_symbol; | |
6152 | } | |
6153 | ||
6154 | ||
01d728a4 | 6155 | static gfc_omp_clauses *module_oacc_clauses; |
6156 | ||
6157 | ||
6158 | static void | |
6159 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6160 | { | |
6161 | gfc_omp_namelist *n; | |
6162 | ||
6163 | n = gfc_get_omp_namelist (); | |
6164 | n->sym = sym; | |
6165 | n->u.map_op = map_op; | |
6166 | ||
6167 | if (!module_oacc_clauses) | |
6168 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6169 | ||
6170 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6171 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6172 | ||
6173 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6174 | } | |
6175 | ||
6176 | ||
6177 | static void | |
6178 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6179 | { | |
6180 | if (sym->attr.use_assoc) | |
6181 | { | |
6182 | gfc_omp_map_op map_op; | |
6183 | ||
6184 | if (sym->attr.oacc_declare_create) | |
6185 | map_op = OMP_MAP_FORCE_ALLOC; | |
6186 | ||
6187 | if (sym->attr.oacc_declare_copyin) | |
6188 | map_op = OMP_MAP_FORCE_TO; | |
6189 | ||
6190 | if (sym->attr.oacc_declare_deviceptr) | |
6191 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6192 | ||
6193 | if (sym->attr.oacc_declare_device_resident) | |
6194 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6195 | ||
6196 | if (sym->attr.oacc_declare_create | |
6197 | || sym->attr.oacc_declare_copyin | |
6198 | || sym->attr.oacc_declare_deviceptr | |
6199 | || sym->attr.oacc_declare_device_resident) | |
6200 | { | |
6201 | sym->attr.referenced = 1; | |
6202 | add_clause (sym, map_op); | |
6203 | } | |
6204 | } | |
6205 | } | |
6206 | ||
6207 | ||
6208 | void | |
6209 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6210 | { | |
6211 | gfc_code *code; | |
6212 | gfc_oacc_declare *oc; | |
6213 | locus where = gfc_current_locus; | |
6214 | gfc_omp_clauses *omp_clauses = NULL; | |
6215 | gfc_omp_namelist *n, *p; | |
6216 | ||
6217 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6218 | ||
6219 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6220 | { | |
6221 | gfc_oacc_declare *new_oc; | |
6222 | ||
6223 | new_oc = gfc_get_oacc_declare (); | |
6224 | new_oc->next = ns->oacc_declare; | |
6225 | new_oc->clauses = module_oacc_clauses; | |
6226 | ||
6227 | ns->oacc_declare = new_oc; | |
6228 | module_oacc_clauses = NULL; | |
6229 | } | |
6230 | ||
6231 | if (!ns->oacc_declare) | |
6232 | return; | |
6233 | ||
6234 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6235 | { | |
6236 | if (oc->module_var) | |
6237 | continue; | |
6238 | ||
6239 | if (block) | |
f187ad6c | 6240 | gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed " |
01d728a4 | 6241 | "in BLOCK construct", &oc->loc); |
6242 | ||
6243 | ||
6244 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6245 | { | |
6246 | if (omp_clauses == NULL) | |
6247 | { | |
6248 | omp_clauses = oc->clauses; | |
6249 | continue; | |
6250 | } | |
6251 | ||
6252 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6253 | ; | |
6254 | ||
6255 | gcc_assert (p->next == NULL); | |
6256 | ||
6257 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6258 | omp_clauses = oc->clauses; | |
6259 | } | |
6260 | } | |
6261 | ||
6262 | if (!omp_clauses) | |
6263 | return; | |
6264 | ||
6265 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6266 | { | |
6267 | switch (n->u.map_op) | |
6268 | { | |
6269 | case OMP_MAP_DEVICE_RESIDENT: | |
6270 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6271 | break; | |
6272 | ||
6273 | default: | |
6274 | break; | |
6275 | } | |
6276 | } | |
6277 | ||
6278 | code = XCNEW (gfc_code); | |
6279 | code->op = EXEC_OACC_DECLARE; | |
6280 | code->loc = where; | |
6281 | ||
6282 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6283 | code->ext.oacc_declare->clauses = omp_clauses; | |
6284 | ||
6285 | code->block = XCNEW (gfc_code); | |
6286 | code->block->op = EXEC_OACC_DECLARE; | |
6287 | code->block->loc = where; | |
6288 | ||
6289 | if (ns->code) | |
6290 | code->block->next = ns->code; | |
6291 | ||
6292 | ns->code = code; | |
6293 | ||
6294 | return; | |
6295 | } | |
6296 | ||
6297 | ||
4ee9c684 | 6298 | /* Generate code for a function. */ |
6299 | ||
6300 | void | |
6301 | gfc_generate_function_code (gfc_namespace * ns) | |
6302 | { | |
6303 | tree fndecl; | |
6304 | tree old_context; | |
6305 | tree decl; | |
6306 | tree tmp; | |
d566c3e0 | 6307 | tree fpstate = NULL_TREE; |
89ac8ba1 | 6308 | stmtblock_t init, cleanup; |
4ee9c684 | 6309 | stmtblock_t body; |
89ac8ba1 | 6310 | gfc_wrapped_block try_block; |
5fa0fdc2 | 6311 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 6312 | gfc_symbol *sym; |
89ac8ba1 | 6313 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 6314 | int rank, ieee; |
e50e62f5 | 6315 | bool is_recursive; |
4ee9c684 | 6316 | |
6317 | sym = ns->proc_name; | |
89ac8ba1 | 6318 | previous_procedure_symbol = current_procedure_symbol; |
6319 | current_procedure_symbol = sym; | |
1b716045 | 6320 | |
8b7e5587 | 6321 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6322 | lost or worse. */ | |
4ee9c684 | 6323 | sym->tlink = sym; |
6324 | ||
6325 | /* Create the declaration for functions with global scope. */ | |
6326 | if (!sym->backend_decl) | |
d896f9b3 | 6327 | gfc_create_function_decl (ns, false); |
4ee9c684 | 6328 | |
6329 | fndecl = sym->backend_decl; | |
6330 | old_context = current_function_decl; | |
6331 | ||
6332 | if (old_context) | |
6333 | { | |
6334 | push_function_context (); | |
6335 | saved_parent_function_decls = saved_function_decls; | |
6336 | saved_function_decls = NULL_TREE; | |
6337 | } | |
6338 | ||
1b716045 | 6339 | trans_function_start (sym); |
4ee9c684 | 6340 | |
89ac8ba1 | 6341 | gfc_init_block (&init); |
4ee9c684 | 6342 | |
c6871095 | 6343 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6344 | { | |
6345 | /* Copy length backend_decls to all entry point result | |
6346 | symbols. */ | |
6347 | gfc_entry_list *el; | |
6348 | tree backend_decl; | |
6349 | ||
eeebe20b | 6350 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6351 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6352 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6353 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6354 | } |
6355 | ||
4ee9c684 | 6356 | /* Translate COMMON blocks. */ |
6357 | gfc_trans_common (ns); | |
6358 | ||
c750cc52 | 6359 | /* Null the parent fake result declaration if this namespace is |
6360 | a module function or an external procedures. */ | |
6361 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6362 | || ns->parent == NULL) | |
6363 | parent_fake_result_decl = NULL_TREE; | |
6364 | ||
2b685f8e | 6365 | gfc_generate_contained_functions (ns); |
6366 | ||
9579733e | 6367 | nonlocal_dummy_decls = NULL; |
6368 | nonlocal_dummy_decl_pset = NULL; | |
6369 | ||
a961ca30 | 6370 | has_coarray_vars = false; |
4ee9c684 | 6371 | generate_local_vars (ns); |
5b11d932 | 6372 | |
4fe73152 | 6373 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6374 | generate_coarray_init (ns); |
6375 | ||
c750cc52 | 6376 | /* Keep the parent fake result declaration in module functions |
6377 | or external procedures. */ | |
6378 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6379 | || ns->parent == NULL) | |
6380 | current_fake_result_decl = parent_fake_result_decl; | |
6381 | else | |
6382 | current_fake_result_decl = NULL_TREE; | |
6383 | ||
89ac8ba1 | 6384 | is_recursive = sym->attr.recursive |
6385 | || (sym->attr.entry_master | |
6386 | && sym->ns->entries->sym->attr.recursive); | |
6387 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6388 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6389 | { |
6390 | char * msg; | |
6391 | ||
87fda26c | 6392 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6393 | sym->name); | |
4c796f54 | 6394 | recurcheckvar = gfc_create_var (logical_type_node, "is_recursive"); |
89ac8ba1 | 6395 | TREE_STATIC (recurcheckvar) = 1; |
4c796f54 | 6396 | DECL_INITIAL (recurcheckvar) = logical_false_node; |
89ac8ba1 | 6397 | gfc_add_expr_to_block (&init, recurcheckvar); |
6398 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6399 | &sym->declared_at, msg); | |
4c796f54 | 6400 | gfc_add_modify (&init, recurcheckvar, logical_true_node); |
434f0922 | 6401 | free (msg); |
89ac8ba1 | 6402 | } |
4ee9c684 | 6403 | |
d566c3e0 | 6404 | /* Check if an IEEE module is used in the procedure. If so, save |
6405 | the floating point state. */ | |
6406 | ieee = is_ieee_module_used (ns); | |
6407 | if (ieee) | |
d7333535 | 6408 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6409 | |
4ee9c684 | 6410 | /* Now generate the code for the body of this function. */ |
6411 | gfc_init_block (&body); | |
6412 | ||
6413 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6414 | && sym->attr.subroutine) |
4ee9c684 | 6415 | { |
6416 | tree alternate_return; | |
c750cc52 | 6417 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6418 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6419 | } |
6420 | ||
1b716045 | 6421 | if (ns->entries) |
6422 | { | |
6423 | /* Jump to the correct entry point. */ | |
6424 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6425 | gfc_add_expr_to_block (&body, tmp); | |
6426 | } | |
6427 | ||
a4abf8a0 | 6428 | /* If bounds-checking is enabled, generate code to check passed in actual |
6429 | arguments against the expected dummy argument attributes (e.g. string | |
6430 | lengths). */ | |
c1630d65 | 6431 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6432 | add_argument_checking (&body, sym); |
6433 | ||
01d728a4 | 6434 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6435 | |
4ee9c684 | 6436 | tmp = gfc_trans_code (ns->code); |
6437 | gfc_add_expr_to_block (&body, tmp); | |
6438 | ||
1caa6ab1 | 6439 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6440 | || (sym->result && sym->result != sym | |
6441 | && sym->result->ts.type == BT_DERIVED | |
6442 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6443 | { |
1caa6ab1 | 6444 | bool artificial_result_decl = false; |
89ac8ba1 | 6445 | tree result = get_proc_result (sym); |
1caa6ab1 | 6446 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6447 | ||
6448 | /* Make sure that a function returning an object with | |
6449 | alloc/pointer_components always has a result, where at least | |
6450 | the allocatable/pointer components are set to zero. */ | |
6451 | if (result == NULL_TREE && sym->attr.function | |
6452 | && ((sym->result->ts.type == BT_DERIVED | |
6453 | && (sym->attr.allocatable | |
6454 | || sym->attr.pointer | |
6455 | || sym->result->ts.u.derived->attr.alloc_comp | |
6456 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6457 | || (sym->result->ts.type == BT_CLASS | |
6458 | && (CLASS_DATA (sym)->attr.allocatable | |
6459 | || CLASS_DATA (sym)->attr.class_pointer | |
6460 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6461 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6462 | { | |
6463 | artificial_result_decl = true; | |
6464 | result = gfc_get_fake_result_decl (sym, 0); | |
6465 | } | |
4ee9c684 | 6466 | |
42766cb3 | 6467 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6468 | { |
deb7edfc | 6469 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6470 | && sym->result == sym) | |
6471 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6472 | null_pointer_node)); | |
42766cb3 | 6473 | else if (sym->ts.type == BT_CLASS |
6474 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6475 | && CLASS_DATA (sym)->attr.dimension == 0 |
6476 | && sym->result == sym) | |
42766cb3 | 6477 | { |
6478 | tmp = CLASS_DATA (sym)->backend_decl; | |
6479 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6480 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6481 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6482 | null_pointer_node)); | |
6483 | } | |
deb7edfc | 6484 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6485 | && !sym->attr.allocatable) |
53169279 | 6486 | { |
1caa6ab1 | 6487 | gfc_expr *init_exp; |
6488 | /* Arrays are not initialized using the default initializer of | |
6489 | their elements. Therefore only check if a default | |
6490 | initializer is available when the result is scalar. */ | |
36d310d0 | 6491 | init_exp = rsym->as ? NULL |
6492 | : gfc_generate_initializer (&rsym->ts, true); | |
1caa6ab1 | 6493 | if (init_exp) |
6494 | { | |
6495 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6496 | gfc_free_expr (init_exp); | |
6497 | gfc_add_expr_to_block (&init, tmp); | |
6498 | } | |
6499 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6500 | { | |
6501 | rank = rsym->as ? rsym->as->rank : 0; | |
6502 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6503 | rank); | |
6504 | gfc_prepend_expr_to_block (&body, tmp); | |
6505 | } | |
53169279 | 6506 | } |
5176859a | 6507 | } |
e50e62f5 | 6508 | |
1caa6ab1 | 6509 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6510 | { |
6511 | /* TODO: move to the appropriate place in resolve.c. */ | |
8b72061f | 6512 | if (warn_return_type > 0 && sym == sym->result) |
4166acc7 | 6513 | gfc_warning (OPT_Wreturn_type, |
6514 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6515 | sym->name, &sym->declared_at); |
8b72061f | 6516 | if (warn_return_type > 0) |
90a4a5a6 | 6517 | TREE_NO_WARNING(sym->backend_decl) = 1; |
fa7b6574 | 6518 | } |
1caa6ab1 | 6519 | if (result != NULL_TREE) |
89ac8ba1 | 6520 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6521 | } |
89ac8ba1 | 6522 | |
6523 | gfc_init_block (&cleanup); | |
6524 | ||
6525 | /* Reset recursion-check variable. */ | |
6526 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6527 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6528 | { |
4c796f54 | 6529 | gfc_add_modify (&cleanup, recurcheckvar, logical_false_node); |
89ac8ba1 | 6530 | recurcheckvar = NULL; |
e50e62f5 | 6531 | } |
2294b616 | 6532 | |
d566c3e0 | 6533 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6534 | if (ieee) | |
d7333535 | 6535 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6536 | |
89ac8ba1 | 6537 | /* Finish the function body and add init and cleanup code. */ |
6538 | tmp = gfc_finish_block (&body); | |
6539 | gfc_start_wrapped_block (&try_block, tmp); | |
6540 | /* Add code to create and cleanup arrays. */ | |
6541 | gfc_trans_deferred_vars (sym, &try_block); | |
6542 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6543 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6544 | |
6545 | /* Add all the decls we created during processing. */ | |
267f3c67 | 6546 | decl = nreverse (saved_function_decls); |
4ee9c684 | 6547 | while (decl) |
6548 | { | |
6549 | tree next; | |
6550 | ||
1767a056 | 6551 | next = DECL_CHAIN (decl); |
6552 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6553 | pushdecl (decl); |
4ee9c684 | 6554 | decl = next; |
6555 | } | |
6556 | saved_function_decls = NULL_TREE; | |
6557 | ||
89ac8ba1 | 6558 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6559 | decl = getdecls (); |
4ee9c684 | 6560 | |
6561 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6562 | poplevel (1, 1); |
4ee9c684 | 6563 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6564 | ||
e5004242 | 6565 | DECL_SAVED_TREE (fndecl) |
6566 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6567 | DECL_INITIAL (fndecl)); | |
6568 | ||
9579733e | 6569 | if (nonlocal_dummy_decls) |
6570 | { | |
6571 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6572 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
431205b7 | 6573 | delete nonlocal_dummy_decl_pset; |
9579733e | 6574 | nonlocal_dummy_decls = NULL; |
6575 | nonlocal_dummy_decl_pset = NULL; | |
6576 | } | |
6577 | ||
4ee9c684 | 6578 | /* Output the GENERIC tree. */ |
6579 | dump_function (TDI_original, fndecl); | |
6580 | ||
6581 | /* Store the end of the function, so that we get good line number | |
6582 | info for the epilogue. */ | |
6583 | cfun->function_end_locus = input_location; | |
6584 | ||
6585 | /* We're leaving the context of this function, so zap cfun. | |
6586 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6587 | tree_rest_of_compilation. */ | |
87d4aa85 | 6588 | set_cfun (NULL); |
4ee9c684 | 6589 | |
6590 | if (old_context) | |
6591 | { | |
6592 | pop_function_context (); | |
6593 | saved_function_decls = saved_parent_function_decls; | |
6594 | } | |
6595 | current_function_decl = old_context; | |
6596 | ||
1f7747bd | 6597 | if (decl_function_context (fndecl)) |
6598 | { | |
6599 | /* Register this function with cgraph just far enough to get it | |
6600 | added to our parent's nested function list. | |
6601 | If there are static coarrays in this function, the nested _caf_init | |
6602 | function has already called cgraph_create_node, which also created | |
6603 | the cgraph node for this function. */ | |
4fe73152 | 6604 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
0d565f19 | 6605 | (void) cgraph_node::get_create (fndecl); |
1f7747bd | 6606 | } |
4ee9c684 | 6607 | else |
35ee1c66 | 6608 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6609 | |
6610 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6611 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6612 | |
6613 | if (sym->attr.is_main_program) | |
6614 | create_main_function (fndecl); | |
89ac8ba1 | 6615 | |
6616 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6617 | } |
6618 | ||
7257a5d2 | 6619 | |
4ee9c684 | 6620 | void |
6621 | gfc_generate_constructors (void) | |
6622 | { | |
22d678e8 | 6623 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6624 | #if 0 |
6625 | tree fnname; | |
6626 | tree type; | |
6627 | tree fndecl; | |
6628 | tree decl; | |
6629 | tree tmp; | |
6630 | ||
6631 | if (gfc_static_ctors == NULL_TREE) | |
6632 | return; | |
6633 | ||
db85cc4f | 6634 | fnname = get_file_function_name ("I"); |
e1036019 | 6635 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6636 | |
e60a6f7b | 6637 | fndecl = build_decl (input_location, |
6638 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6639 | TREE_PUBLIC (fndecl) = 1; |
6640 | ||
e60a6f7b | 6641 | decl = build_decl (input_location, |
6642 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6643 | DECL_ARTIFICIAL (decl) = 1; |
6644 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6645 | DECL_CONTEXT (decl) = fndecl; |
6646 | DECL_RESULT (fndecl) = decl; | |
6647 | ||
6648 | pushdecl (fndecl); | |
6649 | ||
6650 | current_function_decl = fndecl; | |
6651 | ||
b2c4af5e | 6652 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6653 | |
b2c4af5e | 6654 | make_decl_rtl (fndecl); |
4ee9c684 | 6655 | |
00cf115c | 6656 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6657 | |
cde2be84 | 6658 | pushlevel (); |
4ee9c684 | 6659 | |
6660 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6661 | { | |
389dd41b | 6662 | tmp = build_call_expr_loc (input_location, |
6663 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6664 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6665 | } |
6666 | ||
e5004242 | 6667 | decl = getdecls (); |
cde2be84 | 6668 | poplevel (1, 1); |
4ee9c684 | 6669 | |
6670 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6671 | DECL_SAVED_TREE (fndecl) |
6672 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6673 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6674 | |
6675 | free_after_parsing (cfun); | |
6676 | free_after_compilation (cfun); | |
6677 | ||
6148a911 | 6678 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6679 | |
6680 | current_function_decl = NULL_TREE; | |
6681 | #endif | |
6682 | } | |
6683 | ||
9ec7c303 | 6684 | /* Translates a BLOCK DATA program unit. This means emitting the |
6685 | commons contained therein plus their initializations. We also emit | |
6686 | a globally visible symbol to make sure that each BLOCK DATA program | |
6687 | unit remains unique. */ | |
6688 | ||
6689 | void | |
6690 | gfc_generate_block_data (gfc_namespace * ns) | |
6691 | { | |
6692 | tree decl; | |
6693 | tree id; | |
6694 | ||
b31f705b | 6695 | /* Tell the backend the source location of the block data. */ |
6696 | if (ns->proc_name) | |
6697 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6698 | else | |
6699 | gfc_set_backend_locus (&gfc_current_locus); | |
6700 | ||
6701 | /* Process the DATA statements. */ | |
9ec7c303 | 6702 | gfc_trans_common (ns); |
6703 | ||
b31f705b | 6704 | /* Create a global symbol with the mane of the block data. This is to |
6705 | generate linker errors if the same name is used twice. It is never | |
6706 | really used. */ | |
9ec7c303 | 6707 | if (ns->proc_name) |
6708 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6709 | else | |
6710 | id = get_identifier ("__BLOCK_DATA__"); | |
6711 | ||
e60a6f7b | 6712 | decl = build_decl (input_location, |
6713 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6714 | TREE_PUBLIC (decl) = 1; |
6715 | TREE_STATIC (decl) = 1; | |
df4d540f | 6716 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6717 | |
6718 | pushdecl (decl); | |
6719 | rest_of_decl_compilation (decl, 1, 0); | |
6720 | } | |
6721 | ||
b549d2a5 | 6722 | |
6a7084d7 | 6723 | /* Process the local variables of a BLOCK construct. */ |
6724 | ||
6725 | void | |
3c82e013 | 6726 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6727 | { |
6728 | tree decl; | |
6729 | ||
6730 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 6731 | has_coarray_vars = false; |
6732 | ||
6a7084d7 | 6733 | generate_local_vars (ns); |
6734 | ||
4fe73152 | 6735 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6736 | generate_coarray_init (ns); |
6737 | ||
267f3c67 | 6738 | decl = nreverse (saved_local_decls); |
6a7084d7 | 6739 | while (decl) |
6740 | { | |
6741 | tree next; | |
6742 | ||
1767a056 | 6743 | next = DECL_CHAIN (decl); |
6744 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6745 | pushdecl (decl); |
6746 | decl = next; | |
6747 | } | |
6748 | saved_local_decls = NULL_TREE; | |
6749 | } | |
6750 | ||
6751 | ||
4ee9c684 | 6752 | #include "gt-fortran-trans-decl.h" |