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4ee9c684 | 1 | /* Backend function setup |
d353bf18 | 2 | Copyright (C) 2002-2015 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
cb4070e0 | 26 | #include "tm.h" |
dc8078a3 | 27 | #include "gfortran.h" |
b20a8bb4 | 28 | #include "alias.h" |
4ee9c684 | 29 | #include "tree.h" |
b20a8bb4 | 30 | #include "fold-const.h" |
9ed99284 | 31 | #include "stringpool.h" |
32 | #include "stor-layout.h" | |
33 | #include "varasm.h" | |
34 | #include "attribs.h" | |
4ee9c684 | 35 | #include "tree-dump.h" |
a8783bee | 36 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
7cbc820e | 37 | #include "diagnostic-core.h" /* For internal_error. */ |
38 | #include "toplev.h" /* For announce_function. */ | |
4ee9c684 | 39 | #include "target.h" |
a3020f2f | 40 | #include "hard-reg-set.h" |
4ee9c684 | 41 | #include "function.h" |
4ee9c684 | 42 | #include "flags.h" |
43 | #include "cgraph.h" | |
df4d540f | 44 | #include "debug.h" |
126387b5 | 45 | #include "constructor.h" |
4ee9c684 | 46 | #include "trans.h" |
47 | #include "trans-types.h" | |
48 | #include "trans-array.h" | |
49 | #include "trans-const.h" | |
50 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
51 | #include "trans-stmt.h" | |
52 | ||
53 | #define MAX_LABEL_VALUE 99999 | |
54 | ||
55 | ||
56 | /* Holds the result of the function if no result variable specified. */ | |
57 | ||
58 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 59 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 60 | |
4ee9c684 | 61 | |
62 | /* Holds the variable DECLs for the current function. */ | |
63 | ||
d4163395 | 64 | static GTY(()) tree saved_function_decls; |
65 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 66 | |
431205b7 | 67 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
9579733e | 68 | static GTY(()) tree nonlocal_dummy_decls; |
4ee9c684 | 69 | |
6a7084d7 | 70 | /* Holds the variable DECLs that are locals. */ |
71 | ||
72 | static GTY(()) tree saved_local_decls; | |
73 | ||
4ee9c684 | 74 | /* The namespace of the module we're currently generating. Only used while |
75 | outputting decls for module variables. Do not rely on this being set. */ | |
76 | ||
77 | static gfc_namespace *module_namespace; | |
78 | ||
89ac8ba1 | 79 | /* The currently processed procedure symbol. */ |
80 | static gfc_symbol* current_procedure_symbol = NULL; | |
81 | ||
3adf245a | 82 | /* The currently processed module. */ |
83 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 84 | |
a961ca30 | 85 | /* With -fcoarray=lib: For generating the registering call |
86 | of static coarrays. */ | |
87 | static bool has_coarray_vars; | |
88 | static stmtblock_t caf_init_block; | |
89 | ||
90 | ||
4ee9c684 | 91 | /* List of static constructor functions. */ |
92 | ||
93 | tree gfc_static_ctors; | |
94 | ||
95 | ||
d566c3e0 | 96 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
97 | static int seen_ieee_symbol; | |
98 | ||
4ee9c684 | 99 | /* Function declarations for builtin library functions. */ |
100 | ||
4ee9c684 | 101 | tree gfor_fndecl_pause_numeric; |
102 | tree gfor_fndecl_pause_string; | |
103 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 104 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 105 | tree gfor_fndecl_stop_string; |
070cc790 | 106 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 107 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 108 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 109 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 110 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 111 | tree gfor_fndecl_os_error; |
50ad5fa2 | 112 | tree gfor_fndecl_generate_error; |
7257a5d2 | 113 | tree gfor_fndecl_set_args; |
8c84a5de | 114 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 115 | tree gfor_fndecl_set_options; |
15774a8b | 116 | tree gfor_fndecl_set_convert; |
f23886ab | 117 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 118 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 119 | tree gfor_fndecl_ctime; |
120 | tree gfor_fndecl_fdate; | |
dbc97b88 | 121 | tree gfor_fndecl_ttynam; |
4ee9c684 | 122 | tree gfor_fndecl_in_pack; |
123 | tree gfor_fndecl_in_unpack; | |
124 | tree gfor_fndecl_associated; | |
72ce5390 | 125 | tree gfor_fndecl_system_clock4; |
126 | tree gfor_fndecl_system_clock8; | |
d566c3e0 | 127 | tree gfor_fndecl_ieee_procedure_entry; |
128 | tree gfor_fndecl_ieee_procedure_exit; | |
4ee9c684 | 129 | |
130 | ||
70b5944a | 131 | /* Coarray run-time library function decls. */ |
132 | tree gfor_fndecl_caf_init; | |
133 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 134 | tree gfor_fndecl_caf_this_image; |
135 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 136 | tree gfor_fndecl_caf_register; |
d0d776fb | 137 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 138 | tree gfor_fndecl_caf_get; |
139 | tree gfor_fndecl_caf_send; | |
140 | tree gfor_fndecl_caf_sendget; | |
70b5944a | 141 | tree gfor_fndecl_caf_sync_all; |
71cf3ae6 | 142 | tree gfor_fndecl_caf_sync_memory; |
70b5944a | 143 | tree gfor_fndecl_caf_sync_images; |
144 | tree gfor_fndecl_caf_error_stop; | |
145 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 146 | tree gfor_fndecl_caf_atomic_def; |
147 | tree gfor_fndecl_caf_atomic_ref; | |
148 | tree gfor_fndecl_caf_atomic_cas; | |
149 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 150 | tree gfor_fndecl_caf_lock; |
151 | tree gfor_fndecl_caf_unlock; | |
52306a18 | 152 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 153 | tree gfor_fndecl_co_max; |
154 | tree gfor_fndecl_co_min; | |
e39efcef | 155 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 156 | tree gfor_fndecl_co_sum; |
70b5944a | 157 | |
70b5944a | 158 | |
4ee9c684 | 159 | /* Math functions. Many other math functions are handled in |
160 | trans-intrinsic.c. */ | |
161 | ||
920e54ef | 162 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 163 | tree gfor_fndecl_math_ishftc4; |
164 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 165 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 166 | |
167 | ||
168 | /* String functions. */ | |
169 | ||
4ee9c684 | 170 | tree gfor_fndecl_compare_string; |
171 | tree gfor_fndecl_concat_string; | |
172 | tree gfor_fndecl_string_len_trim; | |
173 | tree gfor_fndecl_string_index; | |
174 | tree gfor_fndecl_string_scan; | |
175 | tree gfor_fndecl_string_verify; | |
176 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 177 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 178 | tree gfor_fndecl_adjustl; |
179 | tree gfor_fndecl_adjustr; | |
b44437b9 | 180 | tree gfor_fndecl_select_string; |
40b806de | 181 | tree gfor_fndecl_compare_string_char4; |
182 | tree gfor_fndecl_concat_string_char4; | |
183 | tree gfor_fndecl_string_len_trim_char4; | |
184 | tree gfor_fndecl_string_index_char4; | |
185 | tree gfor_fndecl_string_scan_char4; | |
186 | tree gfor_fndecl_string_verify_char4; | |
187 | tree gfor_fndecl_string_trim_char4; | |
188 | tree gfor_fndecl_string_minmax_char4; | |
189 | tree gfor_fndecl_adjustl_char4; | |
190 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 191 | tree gfor_fndecl_select_string_char4; |
192 | ||
193 | ||
194 | /* Conversion between character kinds. */ | |
195 | tree gfor_fndecl_convert_char1_to_char4; | |
196 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 197 | |
198 | ||
199 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 200 | tree gfor_fndecl_size0; |
201 | tree gfor_fndecl_size1; | |
9b057c29 | 202 | tree gfor_fndecl_iargc; |
4ee9c684 | 203 | |
59e2a584 | 204 | /* Intrinsic functions implemented in Fortran. */ |
205 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 206 | tree gfor_fndecl_si_kind; |
207 | tree gfor_fndecl_sr_kind; | |
208 | ||
4e8e57b0 | 209 | /* BLAS gemm functions. */ |
210 | tree gfor_fndecl_sgemm; | |
211 | tree gfor_fndecl_dgemm; | |
212 | tree gfor_fndecl_cgemm; | |
213 | tree gfor_fndecl_zgemm; | |
214 | ||
4ee9c684 | 215 | |
216 | static void | |
217 | gfc_add_decl_to_parent_function (tree decl) | |
218 | { | |
22d678e8 | 219 | gcc_assert (decl); |
4ee9c684 | 220 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
221 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 222 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 223 | saved_parent_function_decls = decl; |
224 | } | |
225 | ||
226 | void | |
227 | gfc_add_decl_to_function (tree decl) | |
228 | { | |
22d678e8 | 229 | gcc_assert (decl); |
4ee9c684 | 230 | TREE_USED (decl) = 1; |
231 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 232 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 233 | saved_function_decls = decl; |
234 | } | |
235 | ||
6a7084d7 | 236 | static void |
237 | add_decl_as_local (tree decl) | |
238 | { | |
239 | gcc_assert (decl); | |
240 | TREE_USED (decl) = 1; | |
241 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 242 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 243 | saved_local_decls = decl; |
244 | } | |
245 | ||
4ee9c684 | 246 | |
b797d6d3 | 247 | /* Build a backend label declaration. Set TREE_USED for named labels. |
248 | The context of the label is always the current_function_decl. All | |
249 | labels are marked artificial. */ | |
4ee9c684 | 250 | |
251 | tree | |
252 | gfc_build_label_decl (tree label_id) | |
253 | { | |
254 | /* 2^32 temporaries should be enough. */ | |
255 | static unsigned int tmp_num = 1; | |
256 | tree label_decl; | |
257 | char *label_name; | |
258 | ||
259 | if (label_id == NULL_TREE) | |
260 | { | |
261 | /* Build an internal label name. */ | |
262 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
263 | label_id = get_identifier (label_name); | |
264 | } | |
265 | else | |
266 | label_name = NULL; | |
267 | ||
268 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 269 | label_decl = build_decl (input_location, |
270 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 271 | DECL_CONTEXT (label_decl) = current_function_decl; |
272 | DECL_MODE (label_decl) = VOIDmode; | |
273 | ||
b797d6d3 | 274 | /* We always define the label as used, even if the original source |
275 | file never references the label. We don't want all kinds of | |
276 | spurious warnings for old-style Fortran code with too many | |
277 | labels. */ | |
278 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 279 | |
b797d6d3 | 280 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 281 | return label_decl; |
282 | } | |
283 | ||
284 | ||
b31f705b | 285 | /* Set the backend source location of a decl. */ |
286 | ||
287 | void | |
288 | gfc_set_decl_location (tree decl, locus * loc) | |
289 | { | |
b31f705b | 290 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 291 | } |
292 | ||
293 | ||
4ee9c684 | 294 | /* Return the backend label declaration for a given label structure, |
295 | or create it if it doesn't exist yet. */ | |
296 | ||
297 | tree | |
298 | gfc_get_label_decl (gfc_st_label * lp) | |
299 | { | |
4ee9c684 | 300 | if (lp->backend_decl) |
301 | return lp->backend_decl; | |
302 | else | |
303 | { | |
304 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
305 | tree label_decl; | |
306 | ||
307 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 308 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 309 | |
310 | /* Build a mangled name for the label. */ | |
311 | sprintf (label_name, "__label_%.6d", lp->value); | |
312 | ||
313 | /* Build the LABEL_DECL node. */ | |
314 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
315 | ||
316 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 317 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 318 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 319 | else |
320 | DECL_ARTIFICIAL (label_decl) = 1; | |
321 | ||
322 | /* Store the label in the label list and return the LABEL_DECL. */ | |
323 | lp->backend_decl = label_decl; | |
324 | return label_decl; | |
325 | } | |
326 | } | |
327 | ||
328 | ||
329 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
330 | ||
331 | static tree | |
332 | gfc_sym_identifier (gfc_symbol * sym) | |
333 | { | |
0509d0ee | 334 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
335 | return (get_identifier ("MAIN__")); | |
336 | else | |
337 | return (get_identifier (sym->name)); | |
4ee9c684 | 338 | } |
339 | ||
340 | ||
341 | /* Construct mangled name from symbol name. */ | |
342 | ||
343 | static tree | |
344 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
345 | { | |
346 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
347 | ||
c5d33754 | 348 | /* Prevent the mangling of identifiers that have an assigned |
349 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 350 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
351 | return get_identifier (sym->binding_label); | |
a90fe829 | 352 | |
4f0fae8e | 353 | if (sym->module == NULL) |
4ee9c684 | 354 | return gfc_sym_identifier (sym); |
355 | else | |
356 | { | |
f08a3f6f | 357 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 358 | return get_identifier (name); |
359 | } | |
360 | } | |
361 | ||
362 | ||
363 | /* Construct mangled function name from symbol name. */ | |
364 | ||
365 | static tree | |
366 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
367 | { | |
368 | int has_underscore; | |
369 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
370 | ||
c5d33754 | 371 | /* It may be possible to simply use the binding label if it's |
372 | provided, and remove the other checks. Then we could use it | |
373 | for other things if we wished. */ | |
374 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 375 | sym->binding_label) |
c5d33754 | 376 | /* use the binding label rather than the mangled name */ |
377 | return get_identifier (sym->binding_label); | |
378 | ||
4b8eb6ca | 379 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 380 | || (sym->module != NULL && (sym->attr.external |
381 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 382 | && !sym->attr.module_procedure) |
4ee9c684 | 383 | { |
a2f97da7 | 384 | /* Main program is mangled into MAIN__. */ |
385 | if (sym->attr.is_main_program) | |
386 | return get_identifier ("MAIN__"); | |
387 | ||
388 | /* Intrinsic procedures are never mangled. */ | |
389 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 390 | return get_identifier (sym->name); |
391 | ||
829d7a08 | 392 | if (flag_underscoring) |
4ee9c684 | 393 | { |
394 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 395 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 396 | snprintf (name, sizeof name, "%s__", sym->name); |
397 | else | |
398 | snprintf (name, sizeof name, "%s_", sym->name); | |
399 | return get_identifier (name); | |
400 | } | |
401 | else | |
402 | return get_identifier (sym->name); | |
403 | } | |
404 | else | |
405 | { | |
f08a3f6f | 406 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 407 | return get_identifier (name); |
408 | } | |
409 | } | |
410 | ||
411 | ||
1236e28b | 412 | void |
413 | gfc_set_decl_assembler_name (tree decl, tree name) | |
414 | { | |
415 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
416 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
417 | } | |
418 | ||
419 | ||
5ed82495 | 420 | /* Returns true if a variable of specified size should go on the stack. */ |
421 | ||
422 | int | |
423 | gfc_can_put_var_on_stack (tree size) | |
424 | { | |
425 | unsigned HOST_WIDE_INT low; | |
426 | ||
427 | if (!INTEGER_CST_P (size)) | |
428 | return 0; | |
429 | ||
eb106faf | 430 | if (flag_max_stack_var_size < 0) |
5ed82495 | 431 | return 1; |
432 | ||
e1d65c9f | 433 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 434 | return 0; |
435 | ||
f9ae6f95 | 436 | low = TREE_INT_CST_LOW (size); |
eb106faf | 437 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 438 | return 0; |
439 | ||
440 | /* TODO: Set a per-function stack size limit. */ | |
441 | ||
442 | return 1; | |
443 | } | |
444 | ||
445 | ||
b7bf3f81 | 446 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
447 | an expression involving its corresponding pointer. There are | |
448 | 2 cases; one for variable size arrays, and one for everything else, | |
449 | because variable-sized arrays require one fewer level of | |
450 | indirection. */ | |
451 | ||
452 | static void | |
453 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
454 | { | |
455 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
456 | tree value; | |
457 | ||
458 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 459 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 460 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
461 | ptr_decl); | |
b7bf3f81 | 462 | |
463 | /* Check to see if we're dealing with a variable-sized array. */ | |
464 | if (sym->attr.dimension | |
a90fe829 | 465 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
466 | { | |
942043f8 | 467 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 468 | them here. */ |
469 | value = convert (TREE_TYPE (decl), ptr_decl); | |
470 | } | |
471 | else | |
472 | { | |
473 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
474 | ptr_decl); | |
389dd41b | 475 | value = build_fold_indirect_ref_loc (input_location, |
476 | ptr_decl); | |
b7bf3f81 | 477 | } |
478 | ||
479 | SET_DECL_VALUE_EXPR (decl, value); | |
480 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 481 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 482 | } |
483 | ||
484 | ||
b9c7fce7 | 485 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 486 | |
487 | static void | |
b9c7fce7 | 488 | gfc_finish_decl (tree decl) |
4ee9c684 | 489 | { |
b9c7fce7 | 490 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
491 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 492 | |
b9c7fce7 | 493 | if (TREE_CODE (decl) != VAR_DECL) |
494 | return; | |
4ee9c684 | 495 | |
b9c7fce7 | 496 | if (DECL_SIZE (decl) == NULL_TREE |
497 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
498 | layout_decl (decl, 0); | |
499 | ||
500 | /* A few consistency checks. */ | |
501 | /* A static variable with an incomplete type is an error if it is | |
502 | initialized. Also if it is not file scope. Otherwise, let it | |
503 | through, but if it is not `extern' then it may cause an error | |
504 | message later. */ | |
505 | /* An automatic variable with an incomplete type is an error. */ | |
506 | ||
507 | /* We should know the storage size. */ | |
508 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 509 | || (TREE_STATIC (decl) |
b9c7fce7 | 510 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
511 | : DECL_EXTERNAL (decl))); | |
512 | ||
513 | /* The storage size should be constant. */ | |
514 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
515 | || !DECL_SIZE (decl) | |
516 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 517 | } |
518 | ||
519 | ||
cf5f881f | 520 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
521 | ||
522 | void | |
523 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
524 | { | |
525 | if (!attr->dimension && !attr->codimension) | |
526 | { | |
527 | /* Handle scalar allocatable variables. */ | |
528 | if (attr->allocatable) | |
529 | { | |
530 | gfc_allocate_lang_decl (decl); | |
531 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
532 | } | |
533 | /* Handle scalar pointer variables. */ | |
534 | if (attr->pointer) | |
535 | { | |
536 | gfc_allocate_lang_decl (decl); | |
537 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
538 | } | |
539 | } | |
540 | } | |
541 | ||
542 | ||
4ee9c684 | 543 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
544 | ||
545 | static void | |
546 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
547 | { | |
c1977dbe | 548 | tree new_type; |
b549d2a5 | 549 | |
b7bf3f81 | 550 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 551 | if (sym->attr.cray_pointee) |
b7bf3f81 | 552 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 553 | |
845a9546 | 554 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
555 | This is the equivalent of the TARGET variables. | |
556 | We also need to set this if the variable is passed by reference in a | |
557 | CALL statement. */ | |
4ee9c684 | 558 | if (sym->attr.target) |
559 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 560 | |
4ee9c684 | 561 | /* If it wasn't used we wouldn't be getting it. */ |
562 | TREE_USED (decl) = 1; | |
563 | ||
7415cfe4 | 564 | if (sym->attr.flavor == FL_PARAMETER |
565 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
566 | TREE_READONLY (decl) = 1; | |
567 | ||
4ee9c684 | 568 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
569 | because this would add them to the current scope rather than the | |
570 | function scope. */ | |
571 | if (current_function_decl != NULL_TREE) | |
572 | { | |
7af6a4af | 573 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 574 | || sym->result == sym) |
4ee9c684 | 575 | gfc_add_decl_to_function (decl); |
6a7084d7 | 576 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
577 | /* This is a BLOCK construct. */ | |
578 | add_decl_as_local (decl); | |
4ee9c684 | 579 | else |
580 | gfc_add_decl_to_parent_function (decl); | |
581 | } | |
582 | ||
b7bf3f81 | 583 | if (sym->attr.cray_pointee) |
584 | return; | |
585 | ||
c5cb468c | 586 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 587 | { |
588 | /* We need to put variables that are bind(c) into the common | |
589 | segment of the object file, because this is what C would do. | |
590 | gfortran would typically put them in either the BSS or | |
591 | initialized data segments, and only mark them as common if | |
592 | they were part of common blocks. However, if they are not put | |
ea657963 | 593 | into common space, then C cannot initialize global Fortran |
c5d33754 | 594 | variables that it interoperates with and the draft says that |
595 | either Fortran or C should be able to initialize it (but not | |
596 | both, of course.) (J3/04-007, section 15.3). */ | |
597 | TREE_PUBLIC(decl) = 1; | |
598 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 599 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
600 | { | |
601 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
602 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
603 | } | |
c5d33754 | 604 | } |
a90fe829 | 605 | |
4ee9c684 | 606 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 607 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 608 | { |
609 | DECL_EXTERNAL (decl) = 1; | |
610 | TREE_PUBLIC (decl) = 1; | |
611 | } | |
4f0fae8e | 612 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 613 | { |
6b20224d | 614 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 615 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 616 | |
c8ddfd5d | 617 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 618 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 619 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
620 | { | |
621 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
622 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
623 | } | |
4ee9c684 | 624 | } |
625 | ||
f0d4969f | 626 | /* Derived types are a bit peculiar because of the possibility of |
627 | a default initializer; this must be applied each time the variable | |
628 | comes into scope it therefore need not be static. These variables | |
629 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 630 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 631 | SAVE_EXPLICIT. */ |
632 | if (!sym->attr.use_assoc | |
633 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 634 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 635 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 636 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 637 | TREE_STATIC (decl) = 1; |
ef814c81 | 638 | |
639 | if (sym->attr.volatile_) | |
640 | { | |
ef814c81 | 641 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 642 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 643 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
644 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 645 | } |
ef814c81 | 646 | |
4ee9c684 | 647 | /* Keep variables larger than max-stack-var-size off stack. */ |
648 | if (!sym->ns->proc_name->attr.recursive | |
649 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 650 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
651 | /* Put variable length auto array pointers always into stack. */ | |
652 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
653 | || sym->attr.dimension == 0 | |
654 | || sym->as->type != AS_EXPLICIT | |
655 | || sym->attr.pointer | |
656 | || sym->attr.allocatable) | |
657 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 658 | TREE_STATIC (decl) = 1; |
764f1175 | 659 | |
660 | /* Handle threadprivate variables. */ | |
9dda1f80 | 661 | if (sym->attr.threadprivate |
764f1175 | 662 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 663 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 664 | |
665 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 666 | } |
667 | ||
668 | ||
669 | /* Allocate the lang-specific part of a decl. */ | |
670 | ||
671 | void | |
672 | gfc_allocate_lang_decl (tree decl) | |
673 | { | |
cf5f881f | 674 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
675 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 676 | } |
677 | ||
678 | /* Remember a symbol to generate initialization/cleanup code at function | |
679 | entry/exit. */ | |
680 | ||
681 | static void | |
682 | gfc_defer_symbol_init (gfc_symbol * sym) | |
683 | { | |
684 | gfc_symbol *p; | |
685 | gfc_symbol *last; | |
686 | gfc_symbol *head; | |
687 | ||
688 | /* Don't add a symbol twice. */ | |
689 | if (sym->tlink) | |
690 | return; | |
691 | ||
692 | last = head = sym->ns->proc_name; | |
693 | p = last->tlink; | |
694 | ||
695 | /* Make sure that setup code for dummy variables which are used in the | |
696 | setup of other variables is generated first. */ | |
697 | if (sym->attr.dummy) | |
698 | { | |
699 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
700 | This is a circular list, so don't go past the head. */ | |
701 | while (p != head | |
702 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
703 | { | |
704 | last = p; | |
705 | p = p->tlink; | |
706 | } | |
707 | } | |
708 | /* Insert in between last and p. */ | |
709 | last->tlink = sym; | |
710 | sym->tlink = p; | |
711 | } | |
712 | ||
713 | ||
9f5a9ac5 | 714 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
715 | backend_decl for a module symbol, if it all ready exists. If the | |
716 | module gsymbol does not exist, it is created. If the symbol does | |
717 | not exist, it is added to the gsymbol namespace. Returns true if | |
718 | an existing backend_decl is found. */ | |
719 | ||
720 | bool | |
721 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
722 | { | |
723 | gfc_gsymbol *gsym; | |
724 | gfc_symbol *s; | |
725 | gfc_symtree *st; | |
726 | ||
727 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
728 | ||
729 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
730 | { | |
731 | st = NULL; | |
732 | s = NULL; | |
733 | ||
734 | if (gsym) | |
735 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
736 | ||
737 | if (!s) | |
738 | { | |
739 | if (!gsym) | |
740 | { | |
741 | gsym = gfc_get_gsymbol (sym->module); | |
742 | gsym->type = GSYM_MODULE; | |
743 | gsym->ns = gfc_get_namespace (NULL, 0); | |
744 | } | |
745 | ||
746 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
747 | st->n.sym = sym; | |
748 | sym->refs++; | |
749 | } | |
750 | else if (sym->attr.flavor == FL_DERIVED) | |
751 | { | |
c2958b6b | 752 | if (s && s->attr.flavor == FL_PROCEDURE) |
753 | { | |
754 | gfc_interface *intr; | |
755 | gcc_assert (s->attr.generic); | |
756 | for (intr = s->generic; intr; intr = intr->next) | |
757 | if (intr->sym->attr.flavor == FL_DERIVED) | |
758 | { | |
759 | s = intr->sym; | |
760 | break; | |
761 | } | |
762 | } | |
763 | ||
9f5a9ac5 | 764 | if (!s->backend_decl) |
765 | s->backend_decl = gfc_get_derived_type (s); | |
766 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
767 | return true; | |
768 | } | |
769 | else if (s->backend_decl) | |
770 | { | |
85ec2f13 | 771 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 772 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
773 | true); | |
774 | else if (sym->ts.type == BT_CHARACTER) | |
775 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
776 | sym->backend_decl = s->backend_decl; | |
777 | return true; | |
778 | } | |
779 | } | |
780 | return false; | |
781 | } | |
782 | ||
783 | ||
4ee9c684 | 784 | /* Create an array index type variable with function scope. */ |
785 | ||
786 | static tree | |
787 | create_index_var (const char * pfx, int nest) | |
788 | { | |
789 | tree decl; | |
790 | ||
791 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
792 | if (nest) | |
793 | gfc_add_decl_to_parent_function (decl); | |
794 | else | |
795 | gfc_add_decl_to_function (decl); | |
796 | return decl; | |
797 | } | |
798 | ||
799 | ||
800 | /* Create variables to hold all the non-constant bits of info for a | |
801 | descriptorless array. Remember these in the lang-specific part of the | |
802 | type. */ | |
803 | ||
804 | static void | |
805 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
806 | { | |
807 | tree type; | |
808 | int dim; | |
809 | int nest; | |
7b82374f | 810 | gfc_namespace* procns; |
c6793847 | 811 | symbol_attribute *array_attr; |
812 | gfc_array_spec *as; | |
813 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 814 | |
815 | type = TREE_TYPE (decl); | |
c6793847 | 816 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
817 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 818 | |
819 | /* We just use the descriptor, if there is one. */ | |
820 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
821 | return; | |
822 | ||
22d678e8 | 823 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 824 | procns = gfc_find_proc_namespace (sym->ns); |
825 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 826 | && !sym->attr.contained; |
827 | ||
c6793847 | 828 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
829 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 830 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
831 | { | |
832 | tree token; | |
ac36faf0 | 833 | tree token_type = build_qualified_type (pvoid_type_node, |
834 | TYPE_QUAL_RESTRICT); | |
835 | ||
836 | if (sym->module && (sym->attr.use_assoc | |
837 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
838 | { | |
839 | tree token_name | |
840 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
841 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
842 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
843 | token_type); | |
3adf245a | 844 | if (sym->attr.use_assoc) |
845 | DECL_EXTERNAL (token) = 1; | |
846 | else | |
847 | TREE_STATIC (token) = 1; | |
848 | ||
c8ddfd5d | 849 | TREE_PUBLIC (token) = 1; |
850 | ||
851 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
852 | { | |
853 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
854 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
855 | } | |
ac36faf0 | 856 | } |
857 | else | |
3adf245a | 858 | { |
859 | token = gfc_create_var_np (token_type, "caf_token"); | |
860 | TREE_STATIC (token) = 1; | |
861 | } | |
a961ca30 | 862 | |
a961ca30 | 863 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
864 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 865 | DECL_NONALIASED (token) = 1; |
866 | ||
867 | if (sym->module && !sym->attr.use_assoc) | |
868 | { | |
869 | pushdecl (token); | |
870 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
871 | gfc_module_add_decl (cur_module, token); | |
872 | } | |
873 | else | |
874 | gfc_add_decl_to_function (token); | |
a961ca30 | 875 | } |
876 | ||
4ee9c684 | 877 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
878 | { | |
879 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 880 | { |
881 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
882 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
883 | } | |
9ca15c9b | 884 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 885 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 886 | && (as->type != AS_ASSUMED_SIZE |
887 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 888 | { |
889 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
890 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
891 | } | |
4ee9c684 | 892 | |
893 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 894 | { |
895 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
896 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
897 | } | |
4ee9c684 | 898 | } |
076094b7 | 899 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
900 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
901 | { | |
902 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
903 | { | |
904 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
905 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
906 | } | |
907 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
908 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
909 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
910 | { | |
911 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
912 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
913 | } | |
914 | } | |
4ee9c684 | 915 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
916 | { | |
917 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
918 | "offset"); | |
86254bbf | 919 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
920 | ||
4ee9c684 | 921 | if (nest) |
922 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
923 | else | |
924 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
925 | } | |
d4163395 | 926 | |
927 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 928 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 929 | { |
930 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
931 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
932 | } | |
d4163395 | 933 | |
934 | if (POINTER_TYPE_P (type)) | |
935 | { | |
936 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
937 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
938 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
939 | type = TREE_TYPE (type); | |
940 | } | |
941 | ||
942 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
943 | { | |
944 | tree size, range; | |
945 | ||
fd779e1d | 946 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
947 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 948 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
949 | size); | |
950 | TYPE_DOMAIN (type) = range; | |
951 | layout_type (type); | |
952 | } | |
6cf159a6 | 953 | |
6cf159a6 | 954 | if (TYPE_NAME (type) != NULL_TREE |
c6793847 | 955 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
956 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)) == VAR_DECL) | |
6cf159a6 | 957 | { |
958 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
959 | ||
c6793847 | 960 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 961 | { |
962 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
963 | gtype = TREE_TYPE (gtype); | |
964 | } | |
965 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
966 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
967 | TYPE_NAME (type) = NULL_TREE; | |
968 | } | |
969 | ||
970 | if (TYPE_NAME (type) == NULL_TREE) | |
971 | { | |
972 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
973 | ||
c6793847 | 974 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 975 | { |
7130ec9d | 976 | tree lbound, ubound; |
977 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
978 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
979 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 980 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 981 | /* Ensure the bound variables aren't optimized out at -O0. |
982 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 983 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
984 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
985 | end up in debug info. */ | |
7130ec9d | 986 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
987 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
988 | { | |
989 | if (DECL_NAME (lbound) | |
990 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
991 | "lbound") != 0) | |
84bfaaeb | 992 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 993 | DECL_IGNORED_P (lbound) = 0; |
994 | } | |
995 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
996 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
997 | { | |
998 | if (DECL_NAME (ubound) | |
999 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1000 | "ubound") != 0) | |
84bfaaeb | 1001 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1002 | DECL_IGNORED_P (ubound) = 0; |
1003 | } | |
6cf159a6 | 1004 | } |
e60a6f7b | 1005 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1006 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1007 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1008 | } | |
4ee9c684 | 1009 | } |
1010 | ||
1011 | ||
1012 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1013 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1014 | initialization, and construct full type information. */ |
1015 | ||
1016 | static tree | |
1017 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1018 | { | |
1019 | tree decl; | |
1020 | tree type; | |
1021 | gfc_array_spec *as; | |
c6793847 | 1022 | symbol_attribute *array_attr; |
4ee9c684 | 1023 | char *name; |
3d8dea5a | 1024 | gfc_packed packed; |
4ee9c684 | 1025 | int n; |
1026 | bool known_size; | |
c6793847 | 1027 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1028 | ||
1029 | /* Use the array as and attr. */ | |
1030 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1031 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1032 | ||
1033 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1034 | For class arrays the information if sym is an allocatable or pointer | |
1035 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1036 | too many reasons to be of use here). */ | |
1037 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1038 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1039 | || array_attr->allocatable | |
1040 | || (as && as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1041 | return dummy; |
1042 | ||
c6793847 | 1043 | /* Add to list of variables if not a fake result variable. |
1044 | These symbols are set on the symbol only, not on the class component. */ | |
4ee9c684 | 1045 | if (sym->attr.result || sym->attr.dummy) |
1046 | gfc_defer_symbol_init (sym); | |
1047 | ||
c6793847 | 1048 | /* For a class array the array descriptor is in the _data component, while |
1049 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1050 | descriptor. */ | |
1051 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1052 | : TREE_TYPE (dummy)); | |
1053 | /* type now is the array descriptor w/o any indirection. */ | |
22d678e8 | 1054 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1055 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1056 | |
f888a3fb | 1057 | /* Do we know the element size? */ |
4ee9c684 | 1058 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1059 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1060 | |
c6793847 | 1061 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1062 | { |
1063 | /* For descriptorless arrays with known element size the actual | |
1064 | argument is sufficient. */ | |
4ee9c684 | 1065 | gfc_build_qualified_array (dummy, sym); |
1066 | return dummy; | |
1067 | } | |
1068 | ||
4ee9c684 | 1069 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1070 | { | |
cb8e3560 | 1071 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1072 | packed = PACKED_NO; |
3d235846 | 1073 | |
1074 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1075 | are not repacked. */ | |
829d7a08 | 1076 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1077 | { |
1078 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1079 | packed = PACKED_FULL; |
4ee9c684 | 1080 | } |
1081 | else | |
1082 | { | |
1083 | if (as->type == AS_EXPLICIT) | |
1084 | { | |
3d8dea5a | 1085 | packed = PACKED_FULL; |
4ee9c684 | 1086 | for (n = 0; n < as->rank; n++) |
1087 | { | |
1088 | if (!(as->upper[n] | |
1089 | && as->lower[n] | |
1090 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1091 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1092 | { |
1093 | packed = PACKED_PARTIAL; | |
1094 | break; | |
1095 | } | |
4ee9c684 | 1096 | } |
1097 | } | |
1098 | else | |
3d8dea5a | 1099 | packed = PACKED_PARTIAL; |
4ee9c684 | 1100 | } |
1101 | ||
c6793847 | 1102 | /* For classarrays the element type is required, but |
1103 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1104 | type = is_classarray ? gfc_get_element_type (type) | |
1105 | : gfc_typenode_for_spec (&sym->ts); | |
1106 | type = gfc_get_nodesc_array_type (type, as, packed, | |
e1b3b79b | 1107 | !sym->attr.target); |
4ee9c684 | 1108 | } |
1109 | else | |
1110 | { | |
1111 | /* We now have an expression for the element size, so create a fully | |
1112 | qualified type. Reset sym->backend decl or this will just return the | |
1113 | old type. */ | |
d95efb59 | 1114 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1115 | sym->backend_decl = NULL_TREE; |
1116 | type = gfc_sym_type (sym); | |
3d8dea5a | 1117 | packed = PACKED_FULL; |
4ee9c684 | 1118 | } |
1119 | ||
1120 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1121 | decl = build_decl (input_location, |
1122 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1123 | |
1124 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1125 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1126 | TREE_PUBLIC (decl) = 0; |
1127 | TREE_STATIC (decl) = 0; | |
1128 | DECL_EXTERNAL (decl) = 0; | |
1129 | ||
a1f1e248 | 1130 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1131 | if (sym->attr.optional) | |
1132 | TREE_NO_WARNING (decl) = 1; | |
1133 | ||
4ee9c684 | 1134 | /* We should never get deferred shape arrays here. We used to because of |
1135 | frontend bugs. */ | |
c6793847 | 1136 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1137 | |
3d8dea5a | 1138 | if (packed == PACKED_PARTIAL) |
1139 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1140 | else if (packed == PACKED_FULL) | |
1141 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1142 | |
1143 | gfc_build_qualified_array (decl, sym); | |
1144 | ||
1145 | if (DECL_LANG_SPECIFIC (dummy)) | |
1146 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1147 | else | |
1148 | gfc_allocate_lang_decl (decl); | |
1149 | ||
1150 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1151 | ||
1152 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1153 | || sym->attr.contained) | |
1154 | gfc_add_decl_to_function (decl); | |
1155 | else | |
1156 | gfc_add_decl_to_parent_function (decl); | |
1157 | ||
1158 | return decl; | |
1159 | } | |
1160 | ||
9579733e | 1161 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1162 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1163 | pointing to the artificial variable for debug info purposes. */ | |
1164 | ||
1165 | static void | |
1166 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1167 | { | |
1168 | tree decl, dummy; | |
1169 | ||
1170 | if (! nonlocal_dummy_decl_pset) | |
431205b7 | 1171 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
9579733e | 1172 | |
431205b7 | 1173 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
9579733e | 1174 | return; |
1175 | ||
1176 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1177 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1178 | TREE_TYPE (sym->backend_decl)); |
1179 | DECL_ARTIFICIAL (decl) = 0; | |
1180 | TREE_USED (decl) = 1; | |
1181 | TREE_PUBLIC (decl) = 0; | |
1182 | TREE_STATIC (decl) = 0; | |
1183 | DECL_EXTERNAL (decl) = 0; | |
1184 | if (DECL_BY_REFERENCE (dummy)) | |
1185 | DECL_BY_REFERENCE (decl) = 1; | |
1186 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1187 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1188 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1189 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1190 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1191 | nonlocal_dummy_decls = decl; |
1192 | } | |
4ee9c684 | 1193 | |
1194 | /* Return a constant or a variable to use as a string length. Does not | |
1195 | add the decl to the current scope. */ | |
1196 | ||
1197 | static tree | |
1198 | gfc_create_string_length (gfc_symbol * sym) | |
1199 | { | |
eeebe20b | 1200 | gcc_assert (sym->ts.u.cl); |
1201 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1202 | |
eeebe20b | 1203 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1204 | { |
a4abf8a0 | 1205 | tree length; |
774bbd60 | 1206 | const char *name; |
4ee9c684 | 1207 | |
873f242d | 1208 | /* The string length variable shall be in static memory if it is either |
1209 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1210 | relevant is "len=:" - otherwise, it is either a constant length or | |
1211 | it is an automatic variable. */ | |
be125be0 | 1212 | bool static_length = sym->attr.save |
1213 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1214 | || (flag_max_stack_var_size == 0 |
873f242d | 1215 | && sym->ts.deferred && !sym->attr.dummy |
1216 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1217 | |
1218 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1219 | variables as some systems do not support the "." in the assembler name. | |
1220 | For nonstatic variables, the "." does not appear in assembler. */ | |
1221 | if (static_length) | |
1222 | { | |
1223 | if (sym->module) | |
1224 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1225 | sym->name); | |
1226 | else | |
1227 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1228 | } | |
1229 | else if (sym->module) | |
774bbd60 | 1230 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1231 | else | |
1232 | name = gfc_get_string (".%s", sym->name); | |
1233 | ||
e60a6f7b | 1234 | length = build_decl (input_location, |
1235 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1236 | gfc_charlen_type_node); |
4ee9c684 | 1237 | DECL_ARTIFICIAL (length) = 1; |
1238 | TREE_USED (length) = 1; | |
d4163395 | 1239 | if (sym->ns->proc_name->tlink != NULL) |
1240 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1241 | |
eeebe20b | 1242 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1243 | |
be125be0 | 1244 | if (static_length) |
774bbd60 | 1245 | TREE_STATIC (length) = 1; |
1246 | ||
1247 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1248 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1249 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1250 | } |
1251 | ||
eeebe20b | 1252 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1253 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1254 | } |
1255 | ||
c8f1568f | 1256 | /* If a variable is assigned a label, we add another two auxiliary |
1257 | variables. */ | |
1258 | ||
1259 | static void | |
1260 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1261 | { | |
1262 | tree addr; | |
1263 | tree length; | |
1264 | tree decl; | |
1265 | ||
1266 | gcc_assert (sym->backend_decl); | |
1267 | ||
1268 | decl = sym->backend_decl; | |
1269 | gfc_allocate_lang_decl (decl); | |
1270 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1271 | length = build_decl (input_location, |
1272 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1273 | gfc_charlen_type_node); |
e60a6f7b | 1274 | addr = build_decl (input_location, |
1275 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1276 | pvoid_type_node); |
1277 | gfc_finish_var_decl (length, sym); | |
1278 | gfc_finish_var_decl (addr, sym); | |
1279 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1280 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1281 | target label's address. Otherwise, value is the length of a format string | |
1282 | and ASSIGN_ADDR is its address. */ | |
1283 | if (TREE_STATIC (length)) | |
35bf1214 | 1284 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1285 | else |
1286 | gfc_defer_symbol_init (sym); | |
1287 | ||
1288 | GFC_DECL_STRING_LEN (decl) = length; | |
1289 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1290 | } | |
4ee9c684 | 1291 | |
36b0a1b0 | 1292 | |
1293 | static tree | |
1294 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1295 | { | |
1296 | unsigned id; | |
1297 | tree attr; | |
1298 | ||
1299 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1300 | if (sym_attr.ext_attr & (1 << id)) | |
1301 | { | |
1302 | attr = build_tree_list ( | |
1303 | get_identifier (ext_attr_list[id].middle_end_name), | |
1304 | NULL_TREE); | |
1305 | list = chainon (list, attr); | |
1306 | } | |
1307 | ||
691447ab | 1308 | if (sym_attr.omp_declare_target) |
1309 | list = tree_cons (get_identifier ("omp declare target"), | |
1310 | NULL_TREE, list); | |
1311 | ||
36b0a1b0 | 1312 | return list; |
1313 | } | |
1314 | ||
1315 | ||
802532b9 | 1316 | static void build_function_decl (gfc_symbol * sym, bool global); |
1317 | ||
1318 | ||
4ee9c684 | 1319 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1320 | exist. */ | |
1321 | ||
1322 | tree | |
1323 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1324 | { | |
1325 | tree decl; | |
1326 | tree length = NULL_TREE; | |
36b0a1b0 | 1327 | tree attributes; |
4ee9c684 | 1328 | int byref; |
cd2c99b8 | 1329 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1330 | bool fun_or_res; |
4ee9c684 | 1331 | |
0b5dc8b5 | 1332 | gcc_assert (sym->attr.referenced |
9e45357a | 1333 | || sym->attr.flavor == FL_PROCEDURE |
1334 | || sym->attr.use_assoc | |
4b8eb6ca | 1335 | || sym->attr.used_in_submodule |
9e45357a | 1336 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1337 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1338 | && sym->backend_decl)); | |
4ee9c684 | 1339 | |
ff70e443 | 1340 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1341 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1342 | else | |
1343 | byref = 0; | |
1344 | ||
09c509ed | 1345 | /* Make sure that the vtab for the declared type is completed. */ |
1346 | if (sym->ts.type == BT_CLASS) | |
1347 | { | |
50b4b37b | 1348 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1349 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1350 | { |
1351 | gfc_find_derived_vtab (c->ts.u.derived); | |
1352 | gfc_get_derived_type (sym->ts.u.derived); | |
1353 | } | |
09c509ed | 1354 | } |
1355 | ||
617125a6 | 1356 | /* All deferred character length procedures need to retain the backend |
1357 | decl, which is a pointer to the character length in the caller's | |
1358 | namespace and to declare a local character length. */ | |
1359 | if (!byref && sym->attr.function | |
1360 | && sym->ts.type == BT_CHARACTER | |
1361 | && sym->ts.deferred | |
1362 | && sym->ts.u.cl->passed_length == NULL | |
1363 | && sym->ts.u.cl->backend_decl | |
1364 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1365 | { | |
1366 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1367 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1368 | length = gfc_create_string_length (sym); | |
1369 | } | |
1370 | ||
8b9eb27e | 1371 | fun_or_res = byref && (sym->attr.result |
1372 | || (sym->attr.function && sym->ts.deferred)); | |
1373 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1374 | { |
1375 | /* Return via extra parameter. */ | |
1376 | if (sym->attr.result && byref | |
1377 | && !sym->backend_decl) | |
1378 | { | |
1379 | sym->backend_decl = | |
1380 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1381 | /* For entry master function skip over the __entry |
1382 | argument. */ | |
1383 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1384 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1385 | } |
1386 | ||
1387 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1388 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1389 | |
1390 | /* Create a character length variable. */ | |
1391 | if (sym->ts.type == BT_CHARACTER) | |
1392 | { | |
617125a6 | 1393 | /* For a deferred dummy, make a new string length variable. */ |
1394 | if (sym->ts.deferred | |
1395 | && | |
1396 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1397 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1398 | ||
d1b1479f | 1399 | if (sym->ts.deferred && byref) |
617125a6 | 1400 | { |
d1b1479f | 1401 | /* The string length of a deferred char array is stored in the |
1402 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1403 | marked as a result. Exempt this variable from generating a | |
1404 | temporary for it. */ | |
1405 | if (sym->attr.result) | |
1406 | { | |
1407 | /* We need to insert a indirect ref for param decls. */ | |
1408 | if (sym->ts.u.cl->backend_decl | |
1409 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1410 | sym->ts.u.cl->backend_decl = | |
1411 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1412 | } | |
1413 | /* For all other parameters make sure, that they are copied so | |
1414 | that the value and any modifications are local to the routine | |
1415 | by generating a temporary variable. */ | |
1416 | else if (sym->attr.function | |
1417 | && sym->ts.u.cl->passed_length == NULL | |
1418 | && sym->ts.u.cl->backend_decl) | |
1419 | { | |
1420 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1421 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1422 | } | |
617125a6 | 1423 | } |
1424 | ||
eeebe20b | 1425 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1426 | length = gfc_create_string_length (sym); |
1427 | else | |
eeebe20b | 1428 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1429 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1430 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1431 | { |
d95efb59 | 1432 | /* Add the string length to the same context as the symbol. */ |
1433 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1434 | gfc_add_decl_to_function (length); | |
1435 | else | |
1436 | gfc_add_decl_to_parent_function (length); | |
1437 | ||
1438 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1439 | DECL_CONTEXT (length)); | |
1440 | ||
d4163395 | 1441 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1442 | } |
4ee9c684 | 1443 | } |
1444 | ||
1445 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1446 | if ((sym->attr.dimension || sym->attr.codimension) |
1447 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1448 | { |
d95efb59 | 1449 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1450 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1451 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1452 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1453 | sym->backend_decl = decl; | |
4ee9c684 | 1454 | } |
1455 | ||
c6793847 | 1456 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1457 | some caller is expecting an expression to apply the component refs to. | |
1458 | Therefore the descriptor is only created and stored in | |
1459 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1460 | responsible to extract it from there, when the descriptor is | |
1461 | desired. */ | |
1462 | if (IS_CLASS_ARRAY (sym) | |
1463 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1464 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1465 | { | |
1466 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1467 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1468 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1469 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1470 | sym->backend_decl = decl; | |
1471 | } | |
1472 | ||
4ee9c684 | 1473 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1474 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1475 | { | |
1476 | gfc_add_assign_aux_vars (sym); | |
1477 | } | |
9579733e | 1478 | |
c6793847 | 1479 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
9579733e | 1480 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1481 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1482 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1483 | gfc_nonlocal_dummy_array_decl (sym); | |
1484 | ||
fd23cc08 | 1485 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1486 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1487 | ||
fd23cc08 | 1488 | return sym->backend_decl; |
4ee9c684 | 1489 | } |
1490 | ||
1491 | if (sym->backend_decl) | |
1492 | return sym->backend_decl; | |
1493 | ||
a25debd0 | 1494 | /* Special case for array-valued named constants from intrinsic |
1495 | procedures; those are inlined. */ | |
d566c3e0 | 1496 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1497 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1498 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1499 | intrinsic_array_parameter = true; |
1500 | ||
044bbd71 | 1501 | /* If use associated compilation, use the module |
094bca96 | 1502 | declaration. */ |
044bbd71 | 1503 | if ((sym->attr.flavor == FL_VARIABLE |
1504 | || sym->attr.flavor == FL_PARAMETER) | |
1505 | && sym->attr.use_assoc | |
1506 | && !intrinsic_array_parameter | |
1507 | && sym->module | |
1508 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1509 | { |
1510 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1511 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1512 | return sym->backend_decl; | |
1513 | } | |
7ea64434 | 1514 | |
4ee9c684 | 1515 | if (sym->attr.flavor == FL_PROCEDURE) |
1516 | { | |
77d080ca | 1517 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1518 | procedure pointers and procptr initialization targets. */ |
77d080ca | 1519 | if (sym->attr.use_assoc || sym->attr.intrinsic |
1520 | || sym->attr.if_source != IFSRC_DECL) | |
802532b9 | 1521 | { |
1522 | decl = gfc_get_extern_function_decl (sym); | |
1523 | gfc_set_decl_location (decl, &sym->declared_at); | |
1524 | } | |
1525 | else | |
1526 | { | |
1527 | if (!sym->backend_decl) | |
1528 | build_function_decl (sym, false); | |
1529 | decl = sym->backend_decl; | |
1530 | } | |
4ee9c684 | 1531 | return decl; |
1532 | } | |
1533 | ||
1534 | if (sym->attr.intrinsic) | |
382ad5c3 | 1535 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1536 | |
1537 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1538 | type declaration. For associate names, the target character |
1539 | length is used. Set 'length' to a constant so that if the | |
1540 | string lenght is a variable, it is not finished a second time. */ | |
4ee9c684 | 1541 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1542 | { |
1543 | if (sym->attr.associate_var | |
1544 | && sym->ts.u.cl->backend_decl | |
1545 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
1546 | length = gfc_index_zero_node; | |
1547 | else | |
1548 | length = gfc_create_string_length (sym); | |
1549 | } | |
4ee9c684 | 1550 | |
1551 | /* Create the decl for the variable. */ | |
e60a6f7b | 1552 | decl = build_decl (sym->declared_at.lb->location, |
1553 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1554 | |
1236e28b | 1555 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1556 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1557 | decl_attributes (&decl, attributes, 0); | |
1558 | ||
f888a3fb | 1559 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1560 | This is done here rather than in gfc_finish_var_decl because it |
1561 | is different for string length variables. */ | |
4f0fae8e | 1562 | if (sym->module) |
df4d540f | 1563 | { |
1236e28b | 1564 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1565 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1566 | DECL_IGNORED_P (decl) = 1; |
1567 | } | |
4ee9c684 | 1568 | |
bc5663df | 1569 | if (sym->attr.select_type_temporary) |
1570 | { | |
1571 | DECL_ARTIFICIAL (decl) = 1; | |
1572 | DECL_IGNORED_P (decl) = 1; | |
1573 | } | |
1574 | ||
7a777e43 | 1575 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1576 | { |
1577 | /* Create variables to hold the non-constant bits of array info. */ | |
1578 | gfc_build_qualified_array (decl, sym); | |
1579 | ||
b3c3927c | 1580 | if (sym->attr.contiguous |
1581 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1582 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1583 | } | |
1584 | ||
0a96a7cc | 1585 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1586 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1587 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1588 | (CLASS_DATA (sym)->attr.dimension |
1589 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1590 | || (sym->ts.type == BT_DERIVED |
1591 | && (sym->ts.u.derived->attr.alloc_comp | |
1592 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1593 | && !sym->ns->proc_name->attr.is_main_program | |
1594 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1595 | /* This applies a derived type default initializer. */ |
1596 | || (sym->ts.type == BT_DERIVED | |
1597 | && sym->attr.save == SAVE_NONE | |
1598 | && !sym->attr.data | |
1599 | && !sym->attr.allocatable | |
1600 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1601 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1602 | gfc_defer_symbol_init (sym); |
2294b616 | 1603 | |
4ee9c684 | 1604 | gfc_finish_var_decl (decl, sym); |
1605 | ||
bda1f152 | 1606 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1607 | { |
4ee9c684 | 1608 | /* Character variables need special handling. */ |
1609 | gfc_allocate_lang_decl (decl); | |
1610 | ||
c3639856 | 1611 | /* Associate names can use the hidden string length variable |
1612 | of their associated target. */ | |
bda1f152 | 1613 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1614 | { |
4ee9c684 | 1615 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1616 | gcc_assert (!sym->value); |
4ee9c684 | 1617 | } |
4ee9c684 | 1618 | } |
1033248c | 1619 | else if (sym->attr.subref_array_pointer) |
1620 | { | |
1621 | /* We need the span for these beasts. */ | |
1622 | gfc_allocate_lang_decl (decl); | |
1623 | } | |
1624 | ||
1625 | if (sym->attr.subref_array_pointer) | |
1626 | { | |
1627 | tree span; | |
1628 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1629 | span = build_decl (input_location, |
1630 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1631 | gfc_array_index_type); |
1632 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1633 | TREE_STATIC (span) = TREE_STATIC (decl); |
1634 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1635 | |
1636 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1637 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1638 | } |
1639 | ||
fd23cc08 | 1640 | if (sym->ts.type == BT_CLASS) |
1641 | GFC_DECL_CLASS(decl) = 1; | |
1642 | ||
4ee9c684 | 1643 | sym->backend_decl = decl; |
1644 | ||
c8f1568f | 1645 | if (sym->attr.assign) |
21ebda4d | 1646 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1647 | |
cd2c99b8 | 1648 | if (intrinsic_array_parameter) |
1649 | { | |
1650 | TREE_STATIC (decl) = 1; | |
1651 | DECL_EXTERNAL (decl) = 0; | |
1652 | } | |
1653 | ||
1654 | if (TREE_STATIC (decl) | |
1655 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1656 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
eb106faf | 1657 | || flag_max_stack_var_size == 0 |
a961ca30 | 1658 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1659 | && (flag_coarray != GFC_FCOARRAY_LIB |
0d3bb1de | 1660 | || !sym->attr.codimension || sym->attr.allocatable)) |
a545a8f8 | 1661 | { |
1662 | /* Add static initializer. For procedures, it is only needed if | |
1663 | SAVE is specified otherwise they need to be reinitialized | |
1664 | every time the procedure is entered. The TREE_STATIC is | |
1665 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1666 | |
bda1f152 | 1667 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1668 | TREE_TYPE (decl), sym->attr.dimension |
1669 | || (sym->attr.codimension | |
1670 | && sym->attr.allocatable), | |
1671 | sym->attr.pointer || sym->attr.allocatable | |
1672 | || sym->ts.type == BT_CLASS, | |
1673 | sym->attr.proc_pointer); | |
bda1f152 | 1674 | } |
1675 | ||
9579733e | 1676 | if (!TREE_STATIC (decl) |
1677 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1678 | && !sym->attr.pointer | |
1679 | && !sym->attr.allocatable | |
bc5663df | 1680 | && !sym->attr.proc_pointer |
1681 | && !sym->attr.select_type_temporary) | |
9579733e | 1682 | DECL_BY_REFERENCE (decl) = 1; |
1683 | ||
cf5f881f | 1684 | if (sym->attr.associate_var) |
1685 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1686 | ||
ebad7c3e | 1687 | if (sym->attr.vtab |
1688 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1689 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1690 | |
4ee9c684 | 1691 | return decl; |
1692 | } | |
1693 | ||
1694 | ||
dbe60343 | 1695 | /* Substitute a temporary variable in place of the real one. */ |
1696 | ||
1697 | void | |
1698 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1699 | { | |
1700 | save->attr = sym->attr; | |
1701 | save->decl = sym->backend_decl; | |
1702 | ||
1703 | gfc_clear_attr (&sym->attr); | |
1704 | sym->attr.referenced = 1; | |
1705 | sym->attr.flavor = FL_VARIABLE; | |
1706 | ||
1707 | sym->backend_decl = decl; | |
1708 | } | |
1709 | ||
1710 | ||
1711 | /* Restore the original variable. */ | |
1712 | ||
1713 | void | |
1714 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1715 | { | |
1716 | sym->attr = save->attr; | |
1717 | sym->backend_decl = save->decl; | |
1718 | } | |
1719 | ||
1720 | ||
cad0ddcf | 1721 | /* Declare a procedure pointer. */ |
1722 | ||
1723 | static tree | |
1724 | get_proc_pointer_decl (gfc_symbol *sym) | |
1725 | { | |
1726 | tree decl; | |
36b0a1b0 | 1727 | tree attributes; |
cad0ddcf | 1728 | |
1729 | decl = sym->backend_decl; | |
1730 | if (decl) | |
1731 | return decl; | |
1732 | ||
e60a6f7b | 1733 | decl = build_decl (input_location, |
1734 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1735 | build_pointer_type (gfc_get_function_type (sym))); |
1736 | ||
ea6f8461 | 1737 | if (sym->module) |
1738 | { | |
1739 | /* Apply name mangling. */ | |
1740 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1741 | if (sym->attr.use_assoc) | |
1742 | DECL_IGNORED_P (decl) = 1; | |
1743 | } | |
a90fe829 | 1744 | |
e72f979a | 1745 | if ((sym->ns->proc_name |
1746 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1747 | || sym->attr.contained) |
1748 | gfc_add_decl_to_function (decl); | |
cf269acc | 1749 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1750 | gfc_add_decl_to_parent_function (decl); |
1751 | ||
1752 | sym->backend_decl = decl; | |
1753 | ||
cf269acc | 1754 | /* If a variable is USE associated, it's always external. */ |
1755 | if (sym->attr.use_assoc) | |
1756 | { | |
1757 | DECL_EXTERNAL (decl) = 1; | |
1758 | TREE_PUBLIC (decl) = 1; | |
1759 | } | |
1760 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1761 | { | |
1762 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1763 | TREE_PUBLIC (decl) = 1; |
1764 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1765 | { | |
1766 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1767 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1768 | } | |
cf269acc | 1769 | TREE_STATIC (decl) = 1; |
1770 | } | |
1771 | ||
cad0ddcf | 1772 | if (!sym->attr.use_assoc |
1773 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1774 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1775 | TREE_STATIC (decl) = 1; | |
1776 | ||
1777 | if (TREE_STATIC (decl) && sym->value) | |
1778 | { | |
1779 | /* Add static initializer. */ | |
1780 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1781 | TREE_TYPE (decl), |
1782 | sym->attr.dimension, | |
1783 | false, true); | |
cad0ddcf | 1784 | } |
1785 | ||
8fb1768c | 1786 | /* Handle threadprivate procedure pointers. */ |
1787 | if (sym->attr.threadprivate | |
1788 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1789 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1790 | |
36b0a1b0 | 1791 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1792 | decl_attributes (&decl, attributes, 0); | |
1793 | ||
cad0ddcf | 1794 | return decl; |
1795 | } | |
1796 | ||
1797 | ||
4ee9c684 | 1798 | /* Get a basic decl for an external function. */ |
1799 | ||
1800 | tree | |
1801 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1802 | { | |
1803 | tree type; | |
1804 | tree fndecl; | |
36b0a1b0 | 1805 | tree attributes; |
4ee9c684 | 1806 | gfc_expr e; |
1807 | gfc_intrinsic_sym *isym; | |
1808 | gfc_expr argexpr; | |
17000b91 | 1809 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1810 | tree name; |
1811 | tree mangled_name; | |
83aeedb9 | 1812 | gfc_gsymbol *gsym; |
4ee9c684 | 1813 | |
1814 | if (sym->backend_decl) | |
1815 | return sym->backend_decl; | |
1816 | ||
1b716045 | 1817 | /* We should never be creating external decls for alternate entry points. |
1818 | The procedure may be an alternate entry point, but we don't want/need | |
1819 | to know that. */ | |
22d678e8 | 1820 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1821 | |
cad0ddcf | 1822 | if (sym->attr.proc_pointer) |
1823 | return get_proc_pointer_decl (sym); | |
1824 | ||
83aeedb9 | 1825 | /* See if this is an external procedure from the same file. If so, |
1826 | return the backend_decl. */ | |
da5c730d | 1827 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1828 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1829 | |
c8b913ab | 1830 | if (gsym && !gsym->defined) |
1831 | gsym = NULL; | |
1832 | ||
1833 | /* This can happen because of C binding. */ | |
1834 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1835 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1836 | goto module_sym; | |
1837 | ||
044bbd71 | 1838 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1839 | && !sym->backend_decl | |
1840 | && gsym && gsym->ns | |
1841 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1842 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1843 | { |
d896f9b3 | 1844 | if (!gsym->ns->proc_name->backend_decl) |
1845 | { | |
1846 | /* By construction, the external function cannot be | |
1847 | a contained procedure. */ | |
1848 | locus old_loc; | |
d896f9b3 | 1849 | |
4671339c | 1850 | gfc_save_backend_locus (&old_loc); |
9078126c | 1851 | push_cfun (NULL); |
d896f9b3 | 1852 | |
1853 | gfc_create_function_decl (gsym->ns, true); | |
1854 | ||
1855 | pop_cfun (); | |
4671339c | 1856 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1857 | } |
1858 | ||
83aeedb9 | 1859 | /* If the namespace has entries, the proc_name is the |
1860 | entry master. Find the entry and use its backend_decl. | |
1861 | otherwise, use the proc_name backend_decl. */ | |
1862 | if (gsym->ns->entries) | |
1863 | { | |
1864 | gfc_entry_list *entry = gsym->ns->entries; | |
1865 | ||
1866 | for (; entry; entry = entry->next) | |
1867 | { | |
1868 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1869 | { | |
1870 | sym->backend_decl = entry->sym->backend_decl; | |
1871 | break; | |
1872 | } | |
1873 | } | |
1874 | } | |
1875 | else | |
40c74b02 | 1876 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1877 | |
1878 | if (sym->backend_decl) | |
40c74b02 | 1879 | { |
1880 | /* Avoid problems of double deallocation of the backend declaration | |
1881 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1882 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1883 | sym->attr.use_assoc = 0; | |
1884 | ||
1885 | return sym->backend_decl; | |
1886 | } | |
83aeedb9 | 1887 | } |
1888 | ||
7ea64434 | 1889 | /* See if this is a module procedure from the same file. If so, |
1890 | return the backend_decl. */ | |
1891 | if (sym->module) | |
1892 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1893 | ||
c8b913ab | 1894 | module_sym: |
1895 | if (gsym && gsym->ns | |
1896 | && (gsym->type == GSYM_MODULE | |
1897 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 1898 | { |
1899 | gfc_symbol *s; | |
1900 | ||
1901 | s = NULL; | |
c8b913ab | 1902 | if (gsym->type == GSYM_MODULE) |
1903 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1904 | else | |
1905 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
1906 | ||
7ea64434 | 1907 | if (s && s->backend_decl) |
1908 | { | |
85ec2f13 | 1909 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1910 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1911 | true); | |
1912 | else if (sym->ts.type == BT_CHARACTER) | |
1913 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1914 | sym->backend_decl = s->backend_decl; |
1915 | return sym->backend_decl; | |
1916 | } | |
1917 | } | |
1918 | ||
4ee9c684 | 1919 | if (sym->attr.intrinsic) |
1920 | { | |
1921 | /* Call the resolution function to get the actual name. This is | |
1922 | a nasty hack which relies on the resolution functions only looking | |
1923 | at the first argument. We pass NULL for the second argument | |
1924 | otherwise things like AINT get confused. */ | |
1925 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1926 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1927 | |
1928 | memset (&e, 0, sizeof (e)); | |
1929 | e.expr_type = EXPR_FUNCTION; | |
1930 | ||
1931 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1932 | gcc_assert (isym->formal); |
4ee9c684 | 1933 | argexpr.ts = isym->formal->ts; |
1934 | ||
1935 | if (isym->formal->next == NULL) | |
1936 | isym->resolve.f1 (&e, &argexpr); | |
1937 | else | |
1938 | { | |
37e0271a | 1939 | if (isym->formal->next->next == NULL) |
1940 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1941 | else | |
1942 | { | |
7fe55cc9 | 1943 | if (isym->formal->next->next->next == NULL) |
1944 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1945 | else | |
1946 | { | |
1947 | /* All specific intrinsics take less than 5 arguments. */ | |
1948 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1949 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1950 | } | |
37e0271a | 1951 | } |
4ee9c684 | 1952 | } |
bdaed7d2 | 1953 | |
829d7a08 | 1954 | if (flag_f2c |
bdaed7d2 | 1955 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
1956 | || e.ts.type == BT_COMPLEX)) | |
1957 | { | |
1958 | /* Specific which needs a different implementation if f2c | |
1959 | calling conventions are used. */ | |
17000b91 | 1960 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1961 | } |
1962 | else | |
17000b91 | 1963 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1964 | |
4ee9c684 | 1965 | name = get_identifier (s); |
1966 | mangled_name = name; | |
1967 | } | |
1968 | else | |
1969 | { | |
1970 | name = gfc_sym_identifier (sym); | |
1971 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1972 | } | |
1973 | ||
1974 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1975 | fndecl = build_decl (input_location, |
1976 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1977 | |
e27454ee | 1978 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1979 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1980 | the opposite of declaring a function as static in C). */ |
e27454ee | 1981 | DECL_EXTERNAL (fndecl) = 1; |
1982 | TREE_PUBLIC (fndecl) = 1; | |
1983 | ||
1236e28b | 1984 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1985 | decl_attributes (&fndecl, attributes, 0); | |
1986 | ||
1987 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 1988 | |
1989 | /* Set the context of this decl. */ | |
1990 | if (0 && sym->ns && sym->ns->proc_name) | |
1991 | { | |
1992 | /* TODO: Add external decls to the appropriate scope. */ | |
1993 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
1994 | } | |
1995 | else | |
1996 | { | |
f888a3fb | 1997 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 1998 | DECL_CONTEXT (fndecl) = NULL_TREE; |
1999 | } | |
2000 | ||
4ee9c684 | 2001 | /* Set attributes for PURE functions. A call to PURE function in the |
2002 | Fortran 95 sense is both pure and without side effects in the C | |
2003 | sense. */ | |
bead0399 | 2004 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2005 | { |
4d4b9f0e | 2006 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2007 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2008 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2009 | parameters and don't use alternate returns (is this | |
2010 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2011 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2012 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2013 | } |
2014 | ||
6e27d773 | 2015 | /* Mark non-returning functions. */ |
2016 | if (sym->attr.noreturn) | |
2017 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2018 | ||
4ee9c684 | 2019 | sym->backend_decl = fndecl; |
2020 | ||
2021 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2022 | pushdecl_top_level (fndecl); | |
2023 | ||
15b28553 | 2024 | if (sym->formal_ns |
2025 | && sym->formal_ns->proc_name == sym | |
2026 | && sym->formal_ns->omp_declare_simd) | |
2027 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2028 | ||
4ee9c684 | 2029 | return fndecl; |
2030 | } | |
2031 | ||
2032 | ||
2033 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2034 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2035 | a master function with alternate entry points. */ | |
4ee9c684 | 2036 | |
1b716045 | 2037 | static void |
d896f9b3 | 2038 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2039 | { |
36b0a1b0 | 2040 | tree fndecl, type, attributes; |
4ee9c684 | 2041 | symbol_attribute attr; |
1b716045 | 2042 | tree result_decl; |
4ee9c684 | 2043 | gfc_formal_arglist *f; |
2044 | ||
22d678e8 | 2045 | gcc_assert (!sym->attr.external); |
4ee9c684 | 2046 | |
802532b9 | 2047 | if (sym->backend_decl) |
2048 | return; | |
2049 | ||
b31f705b | 2050 | /* Set the line and filename. sym->declared_at seems to point to the |
2051 | last statement for subroutines, but it'll do for now. */ | |
2052 | gfc_set_backend_locus (&sym->declared_at); | |
2053 | ||
4ee9c684 | 2054 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2055 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2056 | || DECL_FILE_SCOPE_P (current_function_decl) |
2057 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2058 | == NAMESPACE_DECL)); | |
4ee9c684 | 2059 | |
2060 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2061 | fndecl = build_decl (input_location, |
2062 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2063 | |
1236e28b | 2064 | attr = sym->attr; |
2065 | ||
e27454ee | 2066 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2067 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2068 | the opposite of declaring a function as static in C). */ |
e27454ee | 2069 | DECL_EXTERNAL (fndecl) = 0; |
2070 | ||
7d6b5754 | 2071 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2072 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2073 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2074 | && flag_module_private))) |
7d6b5754 | 2075 | sym->attr.access = ACCESS_PRIVATE; |
2076 | ||
e27454ee | 2077 | if (!current_function_decl |
c5cb468c | 2078 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2079 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2080 | || sym->attr.public_used)) | |
e27454ee | 2081 | TREE_PUBLIC (fndecl) = 1; |
2082 | ||
9e45357a | 2083 | if (sym->attr.referenced || sym->attr.entry_master) |
2084 | TREE_USED (fndecl) = 1; | |
2085 | ||
1236e28b | 2086 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2087 | decl_attributes (&fndecl, attributes, 0); | |
2088 | ||
4ee9c684 | 2089 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2090 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2091 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2092 | result_decl = NULL_TREE; |
2093 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2094 | if (attr.function) | |
2095 | { | |
2096 | if (gfc_return_by_reference (sym)) | |
2097 | type = void_type_node; | |
2098 | else | |
2099 | { | |
2100 | if (sym->result != sym) | |
2101 | result_decl = gfc_sym_identifier (sym->result); | |
2102 | ||
2103 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2104 | } | |
2105 | } | |
2106 | else | |
2107 | { | |
2108 | /* Look for alternate return placeholders. */ | |
2109 | int has_alternate_returns = 0; | |
6777213b | 2110 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2111 | { |
2112 | if (f->sym == NULL) | |
2113 | { | |
2114 | has_alternate_returns = 1; | |
2115 | break; | |
2116 | } | |
2117 | } | |
2118 | ||
2119 | if (has_alternate_returns) | |
2120 | type = integer_type_node; | |
2121 | else | |
2122 | type = void_type_node; | |
2123 | } | |
2124 | ||
e60a6f7b | 2125 | result_decl = build_decl (input_location, |
2126 | RESULT_DECL, result_decl, type); | |
540edea7 | 2127 | DECL_ARTIFICIAL (result_decl) = 1; |
2128 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2129 | DECL_CONTEXT (result_decl) = fndecl; |
2130 | DECL_RESULT (fndecl) = result_decl; | |
2131 | ||
2132 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2133 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2134 | |
4ee9c684 | 2135 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2136 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2137 | |
f888a3fb | 2138 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2139 | Fortran 95 sense is both pure and without side effects in the C |
2140 | sense. */ | |
bead0399 | 2141 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2142 | { |
be393645 | 2143 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2144 | including an alternate return. In that case it can also be |
231e961a | 2145 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2146 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2147 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2148 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2149 | } | |
2150 | ||
36b0a1b0 | 2151 | |
4ee9c684 | 2152 | /* Layout the function declaration and put it in the binding level |
2153 | of the current function. */ | |
d896f9b3 | 2154 | |
4c197fd0 | 2155 | if (global) |
d896f9b3 | 2156 | pushdecl_top_level (fndecl); |
2157 | else | |
2158 | pushdecl (fndecl); | |
1b716045 | 2159 | |
16a40513 | 2160 | /* Perform name mangling if this is a top level or module procedure. */ |
2161 | if (current_function_decl == NULL_TREE) | |
2162 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2163 | ||
1b716045 | 2164 | sym->backend_decl = fndecl; |
2165 | } | |
2166 | ||
2167 | ||
2168 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2169 | ||
2170 | static void | |
2171 | create_function_arglist (gfc_symbol * sym) | |
2172 | { | |
2173 | tree fndecl; | |
2174 | gfc_formal_arglist *f; | |
d4163395 | 2175 | tree typelist, hidden_typelist; |
2176 | tree arglist, hidden_arglist; | |
1b716045 | 2177 | tree type; |
2178 | tree parm; | |
2179 | ||
2180 | fndecl = sym->backend_decl; | |
2181 | ||
e4b2c26c | 2182 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2183 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2184 | arglist = NULL_TREE; |
d4163395 | 2185 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2186 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2187 | |
2188 | if (sym->attr.entry_master) | |
2189 | { | |
2190 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2191 | parm = build_decl (input_location, |
2192 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2193 | |
1b716045 | 2194 | DECL_CONTEXT (parm) = fndecl; |
2195 | DECL_ARG_TYPE (parm) = type; | |
2196 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2197 | gfc_finish_decl (parm); |
d95efb59 | 2198 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2199 | |
2200 | arglist = chainon (arglist, parm); | |
2201 | typelist = TREE_CHAIN (typelist); | |
2202 | } | |
2203 | ||
e4b2c26c | 2204 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2205 | { |
d4163395 | 2206 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2207 | |
e4b2c26c | 2208 | if (sym->ts.type == BT_CHARACTER) |
2209 | { | |
e4b2c26c | 2210 | /* Length of character result. */ |
d4163395 | 2211 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2212 | |
e60a6f7b | 2213 | length = build_decl (input_location, |
2214 | PARM_DECL, | |
e4b2c26c | 2215 | get_identifier (".__result"), |
d4163395 | 2216 | len_type); |
eeebe20b | 2217 | if (!sym->ts.u.cl->length) |
e4b2c26c | 2218 | { |
eeebe20b | 2219 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2220 | TREE_USED (length) = 1; |
4ee9c684 | 2221 | } |
22d678e8 | 2222 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2223 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2224 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2225 | TREE_READONLY (length) = 1; |
b5b40b3f | 2226 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2227 | gfc_finish_decl (length); |
eeebe20b | 2228 | if (sym->ts.u.cl->backend_decl == NULL |
2229 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2230 | { |
2231 | gfc_symbol *arg; | |
2232 | tree backend_decl; | |
4ee9c684 | 2233 | |
eeebe20b | 2234 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2235 | { |
e60a6f7b | 2236 | tree len = build_decl (input_location, |
2237 | VAR_DECL, | |
d4163395 | 2238 | get_identifier ("..__result"), |
2239 | gfc_charlen_type_node); | |
2240 | DECL_ARTIFICIAL (len) = 1; | |
2241 | TREE_USED (len) = 1; | |
eeebe20b | 2242 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2243 | } |
4ee9c684 | 2244 | |
d4163395 | 2245 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2246 | arg = sym->result ? sym->result : sym; | |
2247 | backend_decl = arg->backend_decl; | |
2248 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2249 | type. */ | |
2250 | arg->backend_decl = NULL; | |
2251 | type = gfc_sym_type (arg); | |
2252 | arg->backend_decl = backend_decl; | |
2253 | type = build_reference_type (type); | |
2254 | } | |
2255 | } | |
4ee9c684 | 2256 | |
e60a6f7b | 2257 | parm = build_decl (input_location, |
2258 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2259 | |
d4163395 | 2260 | DECL_CONTEXT (parm) = fndecl; |
2261 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2262 | TREE_READONLY (parm) = 1; | |
2263 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2264 | gfc_finish_decl (parm); |
4ee9c684 | 2265 | |
d4163395 | 2266 | arglist = chainon (arglist, parm); |
2267 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2268 | |
d4163395 | 2269 | if (sym->ts.type == BT_CHARACTER) |
2270 | { | |
2271 | gfc_allocate_lang_decl (parm); | |
2272 | arglist = chainon (arglist, length); | |
e4b2c26c | 2273 | typelist = TREE_CHAIN (typelist); |
2274 | } | |
2275 | } | |
4ee9c684 | 2276 | |
d4163395 | 2277 | hidden_typelist = typelist; |
6777213b | 2278 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2279 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2280 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2281 | ||
6777213b | 2282 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2283 | { |
2284 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2285 | |
e4b2c26c | 2286 | /* Ignore alternate returns. */ |
2287 | if (f->sym == NULL) | |
2288 | continue; | |
4ee9c684 | 2289 | |
e4b2c26c | 2290 | type = TREE_VALUE (typelist); |
4ee9c684 | 2291 | |
296db1d1 | 2292 | if (f->sym->ts.type == BT_CHARACTER |
2293 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2294 | { |
2295 | tree len_type = TREE_VALUE (hidden_typelist); | |
2296 | tree length = NULL_TREE; | |
617125a6 | 2297 | if (!f->sym->ts.deferred) |
2298 | gcc_assert (len_type == gfc_charlen_type_node); | |
2299 | else | |
2300 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2301 | |
2302 | strcpy (&name[1], f->sym->name); | |
2303 | name[0] = '_'; | |
e60a6f7b | 2304 | length = build_decl (input_location, |
2305 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2306 | |
d4163395 | 2307 | hidden_arglist = chainon (hidden_arglist, length); |
2308 | DECL_CONTEXT (length) = fndecl; | |
2309 | DECL_ARTIFICIAL (length) = 1; | |
2310 | DECL_ARG_TYPE (length) = len_type; | |
2311 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2312 | gfc_finish_decl (length); |
4ee9c684 | 2313 | |
a4abf8a0 | 2314 | /* Remember the passed value. */ |
a90fe829 | 2315 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2316 | { |
2317 | /* This can happen if the same type is used for multiple | |
2318 | arguments. We need to copy cl as otherwise | |
2319 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2320 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2321 | } |
eeebe20b | 2322 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2323 | |
d4163395 | 2324 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2325 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2326 | { |
d4163395 | 2327 | TREE_USED (length) = 1; |
eeebe20b | 2328 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2329 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2330 | } |
2331 | ||
2332 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2333 | ||
eeebe20b | 2334 | if (f->sym->ts.u.cl->backend_decl == NULL |
2335 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2336 | { |
eeebe20b | 2337 | if (f->sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2338 | gfc_create_string_length (f->sym); |
2339 | ||
2340 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2341 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2342 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2343 | else | |
2344 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2345 | } |
4ee9c684 | 2346 | } |
532c2d79 | 2347 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2348 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2349 | Thus, we will use a hidden argument in that case. */ |
2350 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2351 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
532c2d79 | 2352 | && f->sym->ts.type != BT_DERIVED) |
2353 | { | |
2354 | tree tmp; | |
2355 | strcpy (&name[1], f->sym->name); | |
2356 | name[0] = '_'; | |
2357 | tmp = build_decl (input_location, | |
2358 | PARM_DECL, get_identifier (name), | |
2359 | boolean_type_node); | |
2360 | ||
2361 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2362 | DECL_CONTEXT (tmp) = fndecl; | |
2363 | DECL_ARTIFICIAL (tmp) = 1; | |
2364 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2365 | TREE_READONLY (tmp) = 1; | |
2366 | gfc_finish_decl (tmp); | |
2367 | } | |
4ee9c684 | 2368 | |
d4163395 | 2369 | /* For non-constant length array arguments, make sure they use |
2370 | a different type node from TYPE_ARG_TYPES type. */ | |
2371 | if (f->sym->attr.dimension | |
2372 | && type == TREE_VALUE (typelist) | |
2373 | && TREE_CODE (type) == POINTER_TYPE | |
2374 | && GFC_ARRAY_TYPE_P (type) | |
2375 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2376 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2377 | { | |
2378 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2379 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2380 | else | |
2381 | type = gfc_sym_type (f->sym); | |
2382 | } | |
2383 | ||
cad0ddcf | 2384 | if (f->sym->attr.proc_pointer) |
2385 | type = build_pointer_type (type); | |
2386 | ||
2364aa60 | 2387 | if (f->sym->attr.volatile_) |
2388 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2389 | ||
69b1505f | 2390 | /* Build the argument declaration. */ |
e60a6f7b | 2391 | parm = build_decl (input_location, |
2392 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2393 | |
2364aa60 | 2394 | if (f->sym->attr.volatile_) |
2395 | { | |
2396 | TREE_THIS_VOLATILE (parm) = 1; | |
2397 | TREE_SIDE_EFFECTS (parm) = 1; | |
2398 | } | |
2399 | ||
d4163395 | 2400 | /* Fill in arg stuff. */ |
2401 | DECL_CONTEXT (parm) = fndecl; | |
2402 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2403 | /* All implementation args except for VALUE are read-only. */ |
2404 | if (!f->sym->attr.value) | |
2405 | TREE_READONLY (parm) = 1; | |
98923a84 | 2406 | if (POINTER_TYPE_P (type) |
2407 | && (!f->sym->attr.proc_pointer | |
2408 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2409 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2410 | |
b9c7fce7 | 2411 | gfc_finish_decl (parm); |
cf5f881f | 2412 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2413 | |
2414 | f->sym->backend_decl = parm; | |
2415 | ||
7dce33fe | 2416 | /* Coarrays which are descriptorless or assumed-shape pass with |
2417 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2418 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2419 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2420 | && !f->sym->attr.allocatable) | |
2421 | || (f->sym->ts.type == BT_CLASS | |
2422 | && CLASS_DATA (f->sym)->attr.codimension | |
2423 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2424 | { |
2425 | tree caf_type; | |
2426 | tree token; | |
2427 | tree offset; | |
2428 | ||
2429 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2430 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2431 | caf_type = f->sym->ts.type == BT_CLASS |
2432 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2433 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2434 | |
85c94a64 | 2435 | token = build_decl (input_location, PARM_DECL, |
2436 | create_tmp_var_name ("caf_token"), | |
2437 | build_qualified_type (pvoid_type_node, | |
2438 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2439 | if ((f->sym->ts.type != BT_CLASS |
2440 | && f->sym->as->type != AS_DEFERRED) | |
2441 | || (f->sym->ts.type == BT_CLASS | |
2442 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2443 | { |
2444 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2445 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2446 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2447 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2448 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2449 | } | |
2450 | else | |
2451 | { | |
2452 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2453 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2454 | } | |
a90fe829 | 2455 | |
85c94a64 | 2456 | DECL_CONTEXT (token) = fndecl; |
2457 | DECL_ARTIFICIAL (token) = 1; | |
2458 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2459 | TREE_READONLY (token) = 1; | |
2460 | hidden_arglist = chainon (hidden_arglist, token); | |
2461 | gfc_finish_decl (token); | |
2462 | ||
85c94a64 | 2463 | offset = build_decl (input_location, PARM_DECL, |
2464 | create_tmp_var_name ("caf_offset"), | |
2465 | gfc_array_index_type); | |
2466 | ||
d44f2f7c | 2467 | if ((f->sym->ts.type != BT_CLASS |
2468 | && f->sym->as->type != AS_DEFERRED) | |
2469 | || (f->sym->ts.type == BT_CLASS | |
2470 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2471 | { |
2472 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2473 | == NULL_TREE); | |
2474 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2475 | } | |
2476 | else | |
2477 | { | |
2478 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2479 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2480 | } | |
85c94a64 | 2481 | DECL_CONTEXT (offset) = fndecl; |
2482 | DECL_ARTIFICIAL (offset) = 1; | |
2483 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2484 | TREE_READONLY (offset) = 1; | |
2485 | hidden_arglist = chainon (hidden_arglist, offset); | |
2486 | gfc_finish_decl (offset); | |
2487 | } | |
2488 | ||
d4163395 | 2489 | arglist = chainon (arglist, parm); |
e4b2c26c | 2490 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2491 | } |
e4b2c26c | 2492 | |
465e4a95 | 2493 | /* Add the hidden string length parameters, unless the procedure |
2494 | is bind(C). */ | |
2495 | if (!sym->attr.is_bind_c) | |
2496 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2497 | |
ebe27ea2 | 2498 | gcc_assert (hidden_typelist == NULL_TREE |
2499 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2500 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2501 | } |
e4b2c26c | 2502 | |
1b716045 | 2503 | /* Do the setup necessary before generating the body of a function. */ |
2504 | ||
2505 | static void | |
2506 | trans_function_start (gfc_symbol * sym) | |
2507 | { | |
2508 | tree fndecl; | |
2509 | ||
2510 | fndecl = sym->backend_decl; | |
2511 | ||
f888a3fb | 2512 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2513 | current_function_decl = fndecl; |
2514 | ||
f888a3fb | 2515 | /* Let the world know what we're about to do. */ |
1b716045 | 2516 | announce_function (fndecl); |
2517 | ||
16a40513 | 2518 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2519 | { |
f888a3fb | 2520 | /* Create RTL for function declaration. */ |
1b716045 | 2521 | rest_of_decl_compilation (fndecl, 1, 0); |
2522 | } | |
2523 | ||
f888a3fb | 2524 | /* Create RTL for function definition. */ |
1b716045 | 2525 | make_decl_rtl (fndecl); |
2526 | ||
00cf115c | 2527 | allocate_struct_function (fndecl, false); |
1b716045 | 2528 | |
f888a3fb | 2529 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2530 | pushlevel (); |
1b716045 | 2531 | } |
2532 | ||
2533 | /* Create thunks for alternate entry points. */ | |
2534 | ||
2535 | static void | |
d896f9b3 | 2536 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2537 | { |
2538 | gfc_formal_arglist *formal; | |
2539 | gfc_formal_arglist *thunk_formal; | |
2540 | gfc_entry_list *el; | |
2541 | gfc_symbol *thunk_sym; | |
2542 | stmtblock_t body; | |
2543 | tree thunk_fndecl; | |
1b716045 | 2544 | tree tmp; |
b31f705b | 2545 | locus old_loc; |
1b716045 | 2546 | |
2547 | /* This should always be a toplevel function. */ | |
22d678e8 | 2548 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2549 | |
4671339c | 2550 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2551 | for (el = ns->entries; el; el = el->next) |
2552 | { | |
f1f41a6c | 2553 | vec<tree, va_gc> *args = NULL; |
2554 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2555 | |
1b716045 | 2556 | thunk_sym = el->sym; |
a90fe829 | 2557 | |
d896f9b3 | 2558 | build_function_decl (thunk_sym, global); |
1b716045 | 2559 | create_function_arglist (thunk_sym); |
2560 | ||
2561 | trans_function_start (thunk_sym); | |
2562 | ||
2563 | thunk_fndecl = thunk_sym->backend_decl; | |
2564 | ||
e5004242 | 2565 | gfc_init_block (&body); |
1b716045 | 2566 | |
f888a3fb | 2567 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2568 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2569 | vec_safe_push (args, tmp); |
1b716045 | 2570 | |
c6871095 | 2571 | if (thunk_sym->attr.function) |
2572 | { | |
2573 | if (gfc_return_by_reference (ns->proc_name)) | |
2574 | { | |
2575 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2576 | vec_safe_push (args, ref); |
c6871095 | 2577 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2578 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2579 | } |
2580 | } | |
2581 | ||
6777213b | 2582 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2583 | formal = formal->next) | |
1b716045 | 2584 | { |
c6871095 | 2585 | /* Ignore alternate returns. */ |
2586 | if (formal->sym == NULL) | |
2587 | continue; | |
2588 | ||
1b716045 | 2589 | /* We don't have a clever way of identifying arguments, so resort to |
2590 | a brute-force search. */ | |
6777213b | 2591 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2592 | thunk_formal; |
2593 | thunk_formal = thunk_formal->next) | |
2594 | { | |
2595 | if (thunk_formal->sym == formal->sym) | |
2596 | break; | |
2597 | } | |
2598 | ||
2599 | if (thunk_formal) | |
2600 | { | |
2601 | /* Pass the argument. */ | |
d95efb59 | 2602 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2603 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2604 | if (formal->sym->ts.type == BT_CHARACTER) |
2605 | { | |
eeebe20b | 2606 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2607 | vec_safe_push (string_args, tmp); |
1b716045 | 2608 | } |
2609 | } | |
2610 | else | |
2611 | { | |
2612 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2613 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2614 | if (formal->sym->ts.type == BT_CHARACTER) |
2615 | { | |
7d3075f6 | 2616 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2617 | vec_safe_push (string_args, tmp); |
1b716045 | 2618 | } |
2619 | } | |
2620 | } | |
2621 | ||
2622 | /* Call the master function. */ | |
f1f41a6c | 2623 | vec_safe_splice (args, string_args); |
1b716045 | 2624 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2625 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2626 | if (ns->proc_name->attr.mixed_entry_master) |
2627 | { | |
2628 | tree union_decl, field; | |
2629 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2630 | ||
e60a6f7b | 2631 | union_decl = build_decl (input_location, |
2632 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2633 | TREE_TYPE (master_type)); |
2634 | DECL_ARTIFICIAL (union_decl) = 1; | |
2635 | DECL_EXTERNAL (union_decl) = 0; | |
2636 | TREE_PUBLIC (union_decl) = 0; | |
2637 | TREE_USED (union_decl) = 1; | |
2638 | layout_decl (union_decl, 0); | |
2639 | pushdecl (union_decl); | |
2640 | ||
2641 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2642 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2643 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2644 | gfc_add_expr_to_block (&body, tmp); |
2645 | ||
2646 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2647 | field; field = DECL_CHAIN (field)) |
c6871095 | 2648 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2649 | thunk_sym->result->name) == 0) | |
2650 | break; | |
2651 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2652 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2653 | TREE_TYPE (field), union_decl, field, | |
2654 | NULL_TREE); | |
a90fe829 | 2655 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2656 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2657 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2658 | tmp = build1_v (RETURN_EXPR, tmp); |
2659 | } | |
2660 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2661 | != void_type_node) | |
2662 | { | |
fd779e1d | 2663 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2664 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2665 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2666 | tmp = build1_v (RETURN_EXPR, tmp); |
2667 | } | |
1b716045 | 2668 | gfc_add_expr_to_block (&body, tmp); |
2669 | ||
2670 | /* Finish off this function and send it for code generation. */ | |
2671 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2672 | tmp = getdecls (); |
cde2be84 | 2673 | poplevel (1, 1); |
1b716045 | 2674 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2675 | DECL_SAVED_TREE (thunk_fndecl) |
2676 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2677 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2678 | |
2679 | /* Output the GENERIC tree. */ | |
2680 | dump_function (TDI_original, thunk_fndecl); | |
2681 | ||
2682 | /* Store the end of the function, so that we get good line number | |
2683 | info for the epilogue. */ | |
2684 | cfun->function_end_locus = input_location; | |
2685 | ||
2686 | /* We're leaving the context of this function, so zap cfun. | |
2687 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2688 | tree_rest_of_compilation. */ | |
87d4aa85 | 2689 | set_cfun (NULL); |
1b716045 | 2690 | |
2691 | current_function_decl = NULL_TREE; | |
2692 | ||
35ee1c66 | 2693 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2694 | |
2695 | /* We share the symbols in the formal argument list with other entry | |
2696 | points and the master function. Clear them so that they are | |
2697 | recreated for each function. */ | |
6777213b | 2698 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2699 | formal = formal->next) | |
c6871095 | 2700 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2701 | { | |
2702 | formal->sym->backend_decl = NULL_TREE; | |
2703 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2704 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2705 | } |
2706 | ||
2707 | if (thunk_sym->attr.function) | |
1b716045 | 2708 | { |
c6871095 | 2709 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2710 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2711 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2712 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2713 | } |
2714 | } | |
b31f705b | 2715 | |
4671339c | 2716 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2717 | } |
2718 | ||
2719 | ||
2720 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2721 | points. If global is true, generate the function in the global binding |
2722 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2723 | |
2724 | void | |
d896f9b3 | 2725 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2726 | { |
2727 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2728 | build_function_decl (ns->proc_name, global); |
1b716045 | 2729 | |
f888a3fb | 2730 | /* Compile the entry thunks. */ |
1b716045 | 2731 | if (ns->entries) |
d896f9b3 | 2732 | build_entry_thunks (ns, global); |
1b716045 | 2733 | |
2734 | /* Now create the read argument list. */ | |
2735 | create_function_arglist (ns->proc_name); | |
15b28553 | 2736 | |
2737 | if (ns->omp_declare_simd) | |
2738 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2739 | } |
2740 | ||
c750cc52 | 2741 | /* Return the decl used to hold the function return value. If |
3350e716 | 2742 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2743 | |
2744 | tree | |
c750cc52 | 2745 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2746 | { |
c750cc52 | 2747 | tree decl; |
2748 | tree length; | |
2749 | tree this_fake_result_decl; | |
2750 | tree this_function_decl; | |
4ee9c684 | 2751 | |
2752 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2753 | ||
c750cc52 | 2754 | if (parent_flag) |
2755 | { | |
2756 | this_fake_result_decl = parent_fake_result_decl; | |
2757 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2758 | } | |
2759 | else | |
2760 | { | |
2761 | this_fake_result_decl = current_fake_result_decl; | |
2762 | this_function_decl = current_function_decl; | |
2763 | } | |
2764 | ||
c6871095 | 2765 | if (sym |
c750cc52 | 2766 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2767 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2768 | && sym != sym->ns->proc_name) |
2769 | { | |
d4163395 | 2770 | tree t = NULL, var; |
c750cc52 | 2771 | if (this_fake_result_decl != NULL) |
2772 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2773 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2774 | break; | |
2775 | if (t) | |
2776 | return TREE_VALUE (t); | |
c750cc52 | 2777 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2778 | ||
2779 | if (parent_flag) | |
2780 | this_fake_result_decl = parent_fake_result_decl; | |
2781 | else | |
2782 | this_fake_result_decl = current_fake_result_decl; | |
2783 | ||
d4163395 | 2784 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2785 | { |
2786 | tree field; | |
2787 | ||
2788 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2789 | field; field = DECL_CHAIN (field)) |
c6871095 | 2790 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2791 | sym->name) == 0) | |
2792 | break; | |
2793 | ||
2794 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2795 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2796 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2797 | } |
c750cc52 | 2798 | |
2799 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2800 | if (parent_flag) | |
2801 | gfc_add_decl_to_parent_function (var); | |
2802 | else | |
2803 | gfc_add_decl_to_function (var); | |
2804 | ||
d4163395 | 2805 | SET_DECL_VALUE_EXPR (var, decl); |
2806 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2807 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2808 | |
2809 | TREE_CHAIN (this_fake_result_decl) | |
2810 | = tree_cons (get_identifier (sym->name), var, | |
2811 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2812 | return var; |
c6871095 | 2813 | } |
2814 | ||
c750cc52 | 2815 | if (this_fake_result_decl != NULL_TREE) |
2816 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2817 | |
2818 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2819 | sym is NULL. */ | |
2820 | if (!sym) | |
2821 | return NULL_TREE; | |
2822 | ||
d4163395 | 2823 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2824 | { |
eeebe20b | 2825 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2826 | length = gfc_create_string_length (sym); |
2827 | else | |
eeebe20b | 2828 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2829 | if (TREE_CODE (length) == VAR_DECL |
2830 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2831 | gfc_add_decl_to_function (length); |
4ee9c684 | 2832 | } |
2833 | ||
2834 | if (gfc_return_by_reference (sym)) | |
2835 | { | |
c750cc52 | 2836 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2837 | |
c750cc52 | 2838 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2839 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2840 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2841 | |
2842 | TREE_USED (decl) = 1; | |
2843 | if (sym->as) | |
2844 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2845 | } | |
2846 | else | |
2847 | { | |
2848 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2849 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2850 | |
3350e716 | 2851 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2852 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2853 | VAR_DECL, get_identifier (name), |
3350e716 | 2854 | gfc_sym_type (sym)); |
2855 | else | |
1e71b314 | 2856 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2857 | VAR_DECL, get_identifier (name), |
3350e716 | 2858 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2859 | DECL_ARTIFICIAL (decl) = 1; |
2860 | DECL_EXTERNAL (decl) = 0; | |
2861 | TREE_PUBLIC (decl) = 0; | |
2862 | TREE_USED (decl) = 1; | |
764f1175 | 2863 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2864 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2865 | |
2866 | layout_decl (decl, 0); | |
cf5f881f | 2867 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 2868 | |
c750cc52 | 2869 | if (parent_flag) |
2870 | gfc_add_decl_to_parent_function (decl); | |
2871 | else | |
2872 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2873 | } |
2874 | ||
c750cc52 | 2875 | if (parent_flag) |
2876 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2877 | else | |
2878 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2879 | |
2880 | return decl; | |
2881 | } | |
2882 | ||
2883 | ||
2884 | /* Builds a function decl. The remaining parameters are the types of the | |
2885 | function arguments. Negative nargs indicates a varargs function. */ | |
2886 | ||
8ce86007 | 2887 | static tree |
2888 | build_library_function_decl_1 (tree name, const char *spec, | |
2889 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2890 | { |
f1f41a6c | 2891 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2892 | tree fntype; |
2893 | tree fndecl; | |
4ee9c684 | 2894 | int n; |
2895 | ||
2896 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2897 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2898 | |
4ee9c684 | 2899 | /* Create a list of the argument types. */ |
f1f41a6c | 2900 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2901 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2902 | { |
5edc3af9 | 2903 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2904 | arglist->quick_push (argtype); |
4ee9c684 | 2905 | } |
2906 | ||
2907 | /* Build the function type and decl. */ | |
5edc3af9 | 2908 | if (nargs >= 0) |
2909 | fntype = build_function_type_vec (rettype, arglist); | |
2910 | else | |
2911 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2912 | if (spec) |
2913 | { | |
2914 | tree attr_args = build_tree_list (NULL_TREE, | |
2915 | build_string (strlen (spec), spec)); | |
2916 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2917 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2918 | fntype = build_type_attribute_variant (fntype, attrs); | |
2919 | } | |
e60a6f7b | 2920 | fndecl = build_decl (input_location, |
2921 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2922 | |
2923 | /* Mark this decl as external. */ | |
2924 | DECL_EXTERNAL (fndecl) = 1; | |
2925 | TREE_PUBLIC (fndecl) = 1; | |
2926 | ||
4ee9c684 | 2927 | pushdecl (fndecl); |
2928 | ||
b2c4af5e | 2929 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2930 | |
2931 | return fndecl; | |
2932 | } | |
2933 | ||
8ce86007 | 2934 | /* Builds a function decl. The remaining parameters are the types of the |
2935 | function arguments. Negative nargs indicates a varargs function. */ | |
2936 | ||
2937 | tree | |
2938 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2939 | { | |
2940 | tree ret; | |
2941 | va_list args; | |
2942 | va_start (args, nargs); | |
2943 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2944 | va_end (args); | |
2945 | return ret; | |
2946 | } | |
2947 | ||
2948 | /* Builds a function decl. The remaining parameters are the types of the | |
2949 | function arguments. Negative nargs indicates a varargs function. | |
2950 | The SPEC parameter specifies the function argument and return type | |
2951 | specification according to the fnspec function type attribute. */ | |
2952 | ||
4bf69bc3 | 2953 | tree |
8ce86007 | 2954 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2955 | tree rettype, int nargs, ...) | |
2956 | { | |
2957 | tree ret; | |
2958 | va_list args; | |
2959 | va_start (args, nargs); | |
2960 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2961 | va_end (args); | |
2962 | return ret; | |
2963 | } | |
2964 | ||
4ee9c684 | 2965 | static void |
2966 | gfc_build_intrinsic_function_decls (void) | |
2967 | { | |
90ba9145 | 2968 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 2969 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 2970 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 2971 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 2972 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 2973 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 2974 | tree pchar1_type_node = gfc_get_pchar_type (1); |
2975 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 2976 | |
4ee9c684 | 2977 | /* String functions. */ |
241ecdc7 | 2978 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
2979 | get_identifier (PREFIX("compare_string")), "..R.R", | |
2980 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
2981 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2982 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 2983 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 2984 | |
2985 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
2986 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
2987 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
2988 | gfc_charlen_type_node, pchar1_type_node, | |
2989 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 2990 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 2991 | |
2992 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
2993 | get_identifier (PREFIX("string_len_trim")), "..R", | |
2994 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2995 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 2996 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 2997 | |
2998 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
2999 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3000 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3001 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3002 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3003 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3004 | |
3005 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3006 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3007 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3008 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3009 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3010 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3011 | |
3012 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3013 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3014 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3015 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3016 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3017 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3018 | |
3019 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3020 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3021 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3022 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3023 | pchar1_type_node); | |
3024 | ||
3025 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3026 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3027 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3028 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3029 | integer_type_node); | |
3030 | ||
3031 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3032 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3033 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3034 | pchar1_type_node); | |
bc351485 | 3035 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3036 | |
3037 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3038 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3039 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3040 | pchar1_type_node); | |
bc351485 | 3041 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3042 | |
3043 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3044 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3045 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3046 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3047 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3048 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3049 | |
3050 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3051 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3052 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3053 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3054 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3055 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3056 | |
3057 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3058 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3059 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3060 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3061 | pchar4_type_node); | |
bc351485 | 3062 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3063 | |
3064 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3065 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3066 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3067 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3068 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3069 | |
3070 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3071 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3072 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3073 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3074 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3075 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3076 | |
3077 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3078 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3079 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3080 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3081 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3082 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3083 | |
3084 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3085 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3086 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3087 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3088 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3089 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3090 | |
3091 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3092 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3093 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3094 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3095 | pchar4_type_node); | |
3096 | ||
3097 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3098 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3099 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3100 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3101 | integer_type_node); | |
3102 | ||
3103 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3104 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3105 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3106 | pchar4_type_node); | |
bc351485 | 3107 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3108 | |
3109 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3110 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3111 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3112 | pchar4_type_node); | |
bc351485 | 3113 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3114 | |
3115 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3116 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3117 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3118 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3119 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3120 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3121 | |
3122 | ||
3123 | /* Conversion between character kinds. */ | |
3124 | ||
241ecdc7 | 3125 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3126 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3127 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3128 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3129 | |
241ecdc7 | 3130 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3131 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3132 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3133 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3134 | |
40b806de | 3135 | /* Misc. functions. */ |
5fcc6ec2 | 3136 | |
241ecdc7 | 3137 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3138 | get_identifier (PREFIX("ttynam")), ".W", | |
3139 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3140 | integer_type_node); | |
3141 | ||
3142 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3143 | get_identifier (PREFIX("fdate")), ".W", | |
3144 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3145 | ||
3146 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3147 | get_identifier (PREFIX("ctime")), ".W", | |
3148 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3149 | gfc_int8_type_node); | |
3150 | ||
3151 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3152 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3153 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3154 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3155 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3156 | |
3157 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3158 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3159 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3160 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3161 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3162 | |
3163 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3164 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3165 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3166 | pvoid_type_node); | |
537824d1 | 3167 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3168 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3169 | |
72ce5390 | 3170 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3171 | get_identifier (PREFIX("system_clock_4")), | |
3172 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3173 | gfc_pint4_type_node); | |
3174 | ||
3175 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3176 | get_identifier (PREFIX("system_clock_8")), | |
3177 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3178 | gfc_pint8_type_node); | |
3179 | ||
4ee9c684 | 3180 | /* Power functions. */ |
76834664 | 3181 | { |
920e54ef | 3182 | tree ctype, rtype, itype, jtype; |
3183 | int rkind, ikind, jkind; | |
3184 | #define NIKINDS 3 | |
3185 | #define NRKINDS 4 | |
3186 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3187 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3188 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3189 | ||
3190 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3191 | { |
920e54ef | 3192 | itype = gfc_get_int_type (ikinds[ikind]); |
3193 | ||
3194 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3195 | { | |
3196 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3197 | if (itype && jtype) | |
3198 | { | |
3199 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3200 | ikinds[jkind]); | |
3201 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3202 | gfc_build_library_function_decl (get_identifier (name), | |
3203 | jtype, 2, jtype, itype); | |
2177d98b | 3204 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3205 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3206 | } |
3207 | } | |
3208 | ||
3209 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3210 | { |
920e54ef | 3211 | rtype = gfc_get_real_type (rkinds[rkind]); |
3212 | if (rtype && itype) | |
3213 | { | |
3214 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3215 | ikinds[ikind]); | |
3216 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3217 | gfc_build_library_function_decl (get_identifier (name), | |
3218 | rtype, 2, rtype, itype); | |
2177d98b | 3219 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3220 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3221 | } |
3222 | ||
3223 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3224 | if (ctype && itype) | |
3225 | { | |
3226 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3227 | ikinds[ikind]); | |
3228 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3229 | gfc_build_library_function_decl (get_identifier (name), | |
3230 | ctype, 2,ctype, itype); | |
2177d98b | 3231 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3232 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3233 | } |
76834664 | 3234 | } |
3235 | } | |
920e54ef | 3236 | #undef NIKINDS |
3237 | #undef NRKINDS | |
76834664 | 3238 | } |
3239 | ||
241ecdc7 | 3240 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3241 | get_identifier (PREFIX("ishftc4")), | |
3242 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3243 | gfc_int4_type_node); | |
bc351485 | 3244 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3245 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3246 | |
241ecdc7 | 3247 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3248 | get_identifier (PREFIX("ishftc8")), | |
3249 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3250 | gfc_int4_type_node); | |
bc351485 | 3251 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3252 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3253 | |
920e54ef | 3254 | if (gfc_int16_type_node) |
bc351485 | 3255 | { |
3256 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3257 | get_identifier (PREFIX("ishftc16")), |
3258 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3259 | gfc_int4_type_node); | |
bc351485 | 3260 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3261 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3262 | } | |
920e54ef | 3263 | |
4e8e57b0 | 3264 | /* BLAS functions. */ |
3265 | { | |
36c921b9 | 3266 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3267 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3268 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3269 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3270 | tree pz = build_pointer_type | |
3271 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3272 | ||
3273 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3274 | (get_identifier | |
829d7a08 | 3275 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3276 | void_type_node, 15, pchar_type_node, |
3277 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3278 | ps, pint, ps, ps, pint, integer_type_node, |
3279 | integer_type_node); | |
4e8e57b0 | 3280 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3281 | (get_identifier | |
829d7a08 | 3282 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3283 | void_type_node, 15, pchar_type_node, |
3284 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3285 | pd, pint, pd, pd, pint, integer_type_node, |
3286 | integer_type_node); | |
4e8e57b0 | 3287 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3288 | (get_identifier | |
829d7a08 | 3289 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3290 | void_type_node, 15, pchar_type_node, |
3291 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3292 | pc, pint, pc, pc, pint, integer_type_node, |
3293 | integer_type_node); | |
4e8e57b0 | 3294 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3295 | (get_identifier | |
829d7a08 | 3296 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3297 | void_type_node, 15, pchar_type_node, |
3298 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3299 | pz, pint, pz, pz, pint, integer_type_node, |
3300 | integer_type_node); | |
4e8e57b0 | 3301 | } |
3302 | ||
4ee9c684 | 3303 | /* Other functions. */ |
241ecdc7 | 3304 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3305 | get_identifier (PREFIX("size0")), ".R", | |
3306 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3307 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3308 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3309 | |
3310 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3311 | get_identifier (PREFIX("size1")), ".R", | |
3312 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3313 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3314 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3315 | |
3316 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3317 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3318 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3319 | } |
3320 | ||
3321 | ||
3322 | /* Make prototypes for runtime library functions. */ | |
3323 | ||
3324 | void | |
3325 | gfc_build_builtin_function_decls (void) | |
3326 | { | |
90ba9145 | 3327 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3328 | |
241ecdc7 | 3329 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3330 | get_identifier (PREFIX("stop_numeric")), | |
3331 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3332 | /* STOP doesn't return. */ |
98ccec97 | 3333 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3334 | ||
dff2ea5f | 3335 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3336 | get_identifier (PREFIX("stop_numeric_f08")), | |
3337 | void_type_node, 1, gfc_int4_type_node); | |
3338 | /* STOP doesn't return. */ | |
3339 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3340 | ||
241ecdc7 | 3341 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3342 | get_identifier (PREFIX("stop_string")), ".R.", | |
3343 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3344 | /* STOP doesn't return. */ |
241ecdc7 | 3345 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3346 | |
241ecdc7 | 3347 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3348 | get_identifier (PREFIX("error_stop_numeric")), | |
3349 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3350 | /* ERROR STOP doesn't return. */ |
3351 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3352 | ||
241ecdc7 | 3353 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3354 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3355 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3356 | /* ERROR STOP doesn't return. */ |
3357 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3358 | ||
241ecdc7 | 3359 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3360 | get_identifier (PREFIX("pause_numeric")), | |
3361 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3362 | |
241ecdc7 | 3363 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3364 | get_identifier (PREFIX("pause_string")), ".R.", | |
3365 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3366 | |
241ecdc7 | 3367 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3368 | get_identifier (PREFIX("runtime_error")), ".R", | |
3369 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3370 | /* The runtime_error function does not return. */ |
3371 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3372 | |
241ecdc7 | 3373 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3374 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3375 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3376 | /* The runtime_error_at function does not return. */ |
3377 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3378 | |
241ecdc7 | 3379 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3380 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3381 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3382 | ||
3383 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3384 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3385 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3386 | pchar_type_node); | |
3387 | ||
3388 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3389 | get_identifier (PREFIX("os_error")), ".R", | |
3390 | void_type_node, 1, pchar_type_node); | |
9915365e | 3391 | /* The runtime_error function does not return. */ |
3392 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3393 | ||
241ecdc7 | 3394 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3395 | get_identifier (PREFIX("set_args")), | |
3396 | void_type_node, 2, integer_type_node, | |
3397 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3398 | |
241ecdc7 | 3399 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3400 | get_identifier (PREFIX("set_fpe")), | |
3401 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3402 | |
d566c3e0 | 3403 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3404 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3405 | void_type_node, 1, pvoid_type_node); | |
3406 | ||
3407 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3408 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3409 | void_type_node, 1, pvoid_type_node); | |
3410 | ||
56c7c2d7 | 3411 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3412 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3413 | get_identifier (PREFIX("set_options")), "..R", | |
3414 | void_type_node, 2, integer_type_node, | |
3415 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3416 | |
241ecdc7 | 3417 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3418 | get_identifier (PREFIX("set_convert")), | |
3419 | void_type_node, 1, integer_type_node); | |
15774a8b | 3420 | |
241ecdc7 | 3421 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3422 | get_identifier (PREFIX("set_record_marker")), | |
3423 | void_type_node, 1, integer_type_node); | |
f23886ab | 3424 | |
241ecdc7 | 3425 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3426 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3427 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3428 | |
8ce86007 | 3429 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3430 | get_identifier (PREFIX("internal_pack")), ".r", |
3431 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3432 | |
8ce86007 | 3433 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3434 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3435 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3436 | ||
3437 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3438 | get_identifier (PREFIX("associated")), ".RR", | |
3439 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3440 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3441 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3442 | |
70b5944a | 3443 | /* Coarray library calls. */ |
4fe73152 | 3444 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3445 | { |
3446 | tree pint_type, pppchar_type; | |
3447 | ||
3448 | pint_type = build_pointer_type (integer_type_node); | |
3449 | pppchar_type | |
3450 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3451 | ||
3452 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3453 | get_identifier (PREFIX("caf_init")), void_type_node, | |
53687b4e | 3454 | 2, pint_type, pppchar_type); |
70b5944a | 3455 | |
3456 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3457 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3458 | ||
d44f2f7c | 3459 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
3460 | get_identifier (PREFIX("caf_this_image")), integer_type_node, | |
3461 | 1, integer_type_node); | |
3462 | ||
3463 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
3464 | get_identifier (PREFIX("caf_num_images")), integer_type_node, | |
da82fa7c | 3465 | 2, integer_type_node, integer_type_node); |
d44f2f7c | 3466 | |
a961ca30 | 3467 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3468 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3469 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3470 | pchar_type_node, integer_type_node); |
3471 | ||
3472 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3473 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3474 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3475 | |
5f4a118e | 3476 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
9f1c76f9 | 3477 | get_identifier (PREFIX("caf_get")), ".R.RRRW", void_type_node, 9, |
5f4a118e | 3478 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3479 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3480 | boolean_type_node); | |
5f4a118e | 3481 | |
3482 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
9f1c76f9 | 3483 | get_identifier (PREFIX("caf_send")), ".R.RRRR", void_type_node, 9, |
5f4a118e | 3484 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3485 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3486 | boolean_type_node); | |
5f4a118e | 3487 | |
3488 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3489 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRR", void_type_node, | |
9f1c76f9 | 3490 | 13, pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
5f4a118e | 3491 | pvoid_type_node, pvoid_type_node, size_type_node, integer_type_node, |
9f1c76f9 | 3492 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3493 | boolean_type_node); | |
5f4a118e | 3494 | |
70b5944a | 3495 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3496 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3497 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3498 | |
71cf3ae6 | 3499 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3500 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3501 | 3, pint_type, pchar_type_node, integer_type_node); | |
3502 | ||
70b5944a | 3503 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3504 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3505 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3506 | pchar_type_node, integer_type_node); |
70b5944a | 3507 | |
3508 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3509 | get_identifier (PREFIX("caf_error_stop")), | |
3510 | void_type_node, 1, gfc_int4_type_node); | |
3511 | /* CAF's ERROR STOP doesn't return. */ | |
3512 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3513 | ||
3514 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3515 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3516 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3517 | /* CAF's ERROR STOP doesn't return. */ | |
3518 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3519 | |
97b9ac34 | 3520 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3521 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3522 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3523 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3524 | ||
3525 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3526 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3527 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3528 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3529 | ||
3530 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3531 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3532 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
3533 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3534 | integer_type_node, integer_type_node); | |
3535 | ||
3536 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3537 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3538 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3539 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3540 | integer_type_node, integer_type_node); | |
3541 | ||
498b946e | 3542 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3543 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3544 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3545 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3546 | ||
3547 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3548 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3549 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
498b946e | 3550 | pint_type, pchar_type_node, integer_type_node); |
3551 | ||
52306a18 | 3552 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3553 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3554 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3555 | pint_type, pchar_type_node, integer_type_node); | |
3556 | ||
79ed4a8e | 3557 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3558 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3559 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3560 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3561 | ||
3562 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3563 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3564 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3565 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3566 | ||
e39efcef | 3567 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3568 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3569 | void_type_node, 8, pvoid_type_node, | |
3570 | build_pointer_type (build_varargs_function_type_list (void_type_node, | |
3571 | NULL_TREE)), | |
3572 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3573 | integer_type_node, integer_type_node); | |
3574 | ||
79ed4a8e | 3575 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3576 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3577 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3578 | pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3579 | } |
3580 | ||
4ee9c684 | 3581 | gfc_build_intrinsic_function_decls (); |
3582 | gfc_build_intrinsic_lib_fndecls (); | |
3583 | gfc_build_io_library_fndecls (); | |
3584 | } | |
3585 | ||
3586 | ||
231e961a | 3587 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3588 | |
c5faa799 | 3589 | static void |
3590 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3591 | gfc_wrapped_block *block) | |
4ee9c684 | 3592 | { |
c5faa799 | 3593 | stmtblock_t init; |
4ee9c684 | 3594 | |
b9c7fce7 | 3595 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3596 | |
c5faa799 | 3597 | gfc_start_block (&init); |
4ee9c684 | 3598 | |
3599 | /* Evaluate the string length expression. */ | |
c5faa799 | 3600 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3601 | |
c5faa799 | 3602 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3603 | |
c5faa799 | 3604 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3605 | } |
3606 | ||
3607 | ||
3608 | /* Allocate and cleanup an automatic character variable. */ | |
3609 | ||
c5faa799 | 3610 | static void |
3611 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3612 | { |
c5faa799 | 3613 | stmtblock_t init; |
4ee9c684 | 3614 | tree decl; |
4ee9c684 | 3615 | tree tmp; |
3616 | ||
22d678e8 | 3617 | gcc_assert (sym->backend_decl); |
eeebe20b | 3618 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3619 | |
3714c8b6 | 3620 | gfc_init_block (&init); |
4ee9c684 | 3621 | |
3622 | /* Evaluate the string length expression. */ | |
c5faa799 | 3623 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3624 | |
c5faa799 | 3625 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3626 | |
4ee9c684 | 3627 | decl = sym->backend_decl; |
3628 | ||
afcf285e | 3629 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3630 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3631 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3632 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3633 | |
c5faa799 | 3634 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3635 | } |
3636 | ||
c8f1568f | 3637 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3638 | ||
c5faa799 | 3639 | static void |
3640 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3641 | { |
c5faa799 | 3642 | stmtblock_t init; |
c8f1568f | 3643 | |
3644 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3645 | gfc_start_block (&init); |
c8f1568f | 3646 | |
3647 | /* Set the initial value to length. See the comments in | |
3648 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3649 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3650 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3651 | |
c5faa799 | 3652 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3653 | } |
3654 | ||
d4163395 | 3655 | static void |
3656 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3657 | { | |
3658 | tree t = *tp, var, val; | |
3659 | ||
3660 | if (t == NULL || t == error_mark_node) | |
3661 | return; | |
3662 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3663 | return; | |
3664 | ||
3665 | if (TREE_CODE (t) == SAVE_EXPR) | |
3666 | { | |
3667 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3668 | { | |
3669 | *tp = TREE_OPERAND (t, 0); | |
3670 | return; | |
3671 | } | |
3672 | val = TREE_OPERAND (t, 0); | |
3673 | } | |
3674 | else | |
3675 | val = t; | |
3676 | ||
3677 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3678 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3679 | gfc_add_modify (body, var, val); |
d4163395 | 3680 | if (TREE_CODE (t) == SAVE_EXPR) |
3681 | TREE_OPERAND (t, 0) = var; | |
3682 | *tp = var; | |
3683 | } | |
3684 | ||
3685 | static void | |
3686 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3687 | { | |
3688 | tree t; | |
3689 | ||
3690 | if (type == NULL || type == error_mark_node) | |
3691 | return; | |
3692 | ||
3693 | type = TYPE_MAIN_VARIANT (type); | |
3694 | ||
3695 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3696 | { | |
3697 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3698 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3699 | ||
3700 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3701 | { | |
3702 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3703 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3704 | } | |
3705 | } | |
3706 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3707 | { | |
3708 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3709 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3710 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3711 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3712 | ||
3713 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3714 | { | |
3715 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3716 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3717 | } | |
3718 | } | |
3719 | } | |
3720 | ||
3721 | /* Make sure all type sizes and array domains are either constant, | |
3722 | or variable or parameter decls. This is a simplified variant | |
3723 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3724 | variables in the expressions have been gimplified yet. | |
3725 | As type sizes and domains for various variable length arrays | |
3726 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3727 | time, without this routine gimplify_type_sizes in the middle-end | |
3728 | could result in the type sizes being gimplified earlier than where | |
3729 | those variables are initialized. */ | |
3730 | ||
3731 | void | |
3732 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3733 | { | |
3734 | tree type = TREE_TYPE (sym->backend_decl); | |
3735 | ||
3736 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3737 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3738 | { | |
3739 | if (! current_fake_result_decl) | |
3740 | return; | |
3741 | ||
3742 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3743 | } | |
3744 | ||
3745 | while (POINTER_TYPE_P (type)) | |
3746 | type = TREE_TYPE (type); | |
3747 | ||
3748 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3749 | { | |
3750 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3751 | ||
3752 | while (POINTER_TYPE_P (etype)) | |
3753 | etype = TREE_TYPE (etype); | |
3754 | ||
3755 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3756 | } | |
3757 | ||
3758 | gfc_trans_vla_type_sizes_1 (type, body); | |
3759 | } | |
3760 | ||
4ee9c684 | 3761 | |
f0d4969f | 3762 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3763 | and using trans_assignment to do the work. Set dealloc to false |
3764 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3765 | void |
3766 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3767 | { |
f0d4969f | 3768 | gfc_expr *e; |
87114d2e | 3769 | tree tmp; |
3770 | tree present; | |
3771 | ||
c5faa799 | 3772 | gcc_assert (block); |
3773 | ||
f0d4969f | 3774 | gcc_assert (!sym->attr.allocatable); |
3775 | gfc_set_sym_referenced (sym); | |
3776 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3777 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3778 | if (sym->attr.dummy && (sym->attr.optional |
3779 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3780 | { |
f0d4969f | 3781 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3782 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3783 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3784 | } |
c5faa799 | 3785 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3786 | gfc_free_expr (e); |
87114d2e | 3787 | } |
3788 | ||
3789 | ||
8714fc76 | 3790 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3791 | them their default initializer, if they do not have allocatable | |
293d72e0 | 3792 | components, they have their allocatable components deallocated. */ |
8714fc76 | 3793 | |
c5faa799 | 3794 | static void |
3795 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3796 | { |
c5faa799 | 3797 | stmtblock_t init; |
f0d4969f | 3798 | gfc_formal_arglist *f; |
8714fc76 | 3799 | tree tmp; |
5907c3ea | 3800 | tree present; |
f0d4969f | 3801 | |
c5faa799 | 3802 | gfc_init_block (&init); |
6777213b | 3803 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3804 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3805 | && !f->sym->attr.pointer |
3806 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3807 | { |
942ba353 | 3808 | tmp = NULL_TREE; |
3809 | ||
3810 | /* Note: Allocatables are excluded as they are already handled | |
3811 | by the caller. */ | |
3812 | if (!f->sym->attr.allocatable | |
3813 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3814 | { |
942ba353 | 3815 | stmtblock_t block; |
3816 | gfc_expr *e; | |
3817 | ||
3818 | gfc_init_block (&block); | |
3819 | f->sym->attr.referenced = 1; | |
3820 | e = gfc_lval_expr_from_sym (f->sym); | |
3821 | gfc_add_finalizer_call (&block, e); | |
3822 | gfc_free_expr (e); | |
3823 | tmp = gfc_finish_block (&block); | |
3824 | } | |
5907c3ea | 3825 | |
942ba353 | 3826 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
3827 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
3828 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
3829 | f->sym->backend_decl, | |
3830 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3831 | |
942ba353 | 3832 | if (tmp != NULL_TREE && (f->sym->attr.optional |
3833 | || f->sym->ns->proc_name->attr.entry_master)) | |
3834 | { | |
3835 | present = gfc_conv_expr_present (f->sym); | |
3836 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3837 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 3838 | } |
942ba353 | 3839 | |
3840 | if (tmp != NULL_TREE) | |
3841 | gfc_add_expr_to_block (&init, tmp); | |
3842 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 3843 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3844 | } |
c56d57d6 | 3845 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3846 | && f->sym->ts.type == BT_CLASS | |
3847 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 3848 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 3849 | { |
942ba353 | 3850 | stmtblock_t block; |
3851 | gfc_expr *e; | |
3852 | ||
3853 | gfc_init_block (&block); | |
3854 | f->sym->attr.referenced = 1; | |
3855 | e = gfc_lval_expr_from_sym (f->sym); | |
3856 | gfc_add_finalizer_call (&block, e); | |
3857 | gfc_free_expr (e); | |
3858 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 3859 | |
3860 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3861 | { | |
3862 | present = gfc_conv_expr_present (f->sym); | |
3863 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3864 | present, tmp, | |
3865 | build_empty_stmt (input_location)); | |
3866 | } | |
3867 | ||
3868 | gfc_add_expr_to_block (&init, tmp); | |
3869 | } | |
f0d4969f | 3870 | |
c5faa799 | 3871 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3872 | } |
3873 | ||
87114d2e | 3874 | |
4ee9c684 | 3875 | /* Generate function entry and exit code, and add it to the function body. |
3876 | This includes: | |
f888a3fb | 3877 | Allocation and initialization of array variables. |
4ee9c684 | 3878 | Allocation of character string variables. |
c8f1568f | 3879 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3880 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3881 | Initialization of ASSOCIATE names. |
0a96a7cc | 3882 | Automatic deallocation. */ |
4ee9c684 | 3883 | |
89ac8ba1 | 3884 | void |
3885 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3886 | { |
3887 | locus loc; | |
3888 | gfc_symbol *sym; | |
d4163395 | 3889 | gfc_formal_arglist *f; |
c5faa799 | 3890 | stmtblock_t tmpblock; |
25dd7350 | 3891 | bool seen_trans_deferred_array = false; |
617125a6 | 3892 | tree tmp = NULL; |
3893 | gfc_expr *e; | |
3894 | gfc_se se; | |
3895 | stmtblock_t init; | |
4ee9c684 | 3896 | |
3897 | /* Deal with implicit return variables. Explicit return variables will | |
3898 | already have been added. */ | |
3899 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3900 | { | |
3901 | if (!current_fake_result_decl) | |
3902 | { | |
c6871095 | 3903 | gfc_entry_list *el = NULL; |
3904 | if (proc_sym->attr.entry_master) | |
3905 | { | |
3906 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3907 | if (el->sym != el->sym->result) | |
3908 | break; | |
3909 | } | |
fa7b6574 | 3910 | /* TODO: move to the appropriate place in resolve.c. */ |
3911 | if (warn_return_type && el == NULL) | |
4166acc7 | 3912 | gfc_warning (OPT_Wreturn_type, |
3913 | "Return value of function %qs at %L not set", | |
fa7b6574 | 3914 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 3915 | } |
c6871095 | 3916 | else if (proc_sym->as) |
4ee9c684 | 3917 | { |
d4163395 | 3918 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3919 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3920 | |
3921 | /* An automatic character length, pointer array result. */ | |
3922 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3923 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3924 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3925 | } |
3926 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3927 | { | |
617125a6 | 3928 | if (proc_sym->ts.deferred) |
3929 | { | |
3930 | tmp = NULL; | |
da2c4122 | 3931 | gfc_save_backend_locus (&loc); |
3932 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3933 | gfc_start_block (&init); |
3934 | /* Zero the string length on entry. */ | |
3935 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3936 | build_int_cst (gfc_charlen_type_node, 0)); | |
3937 | /* Null the pointer. */ | |
3938 | e = gfc_lval_expr_from_sym (proc_sym); | |
3939 | gfc_init_se (&se, NULL); | |
3940 | se.want_pointer = 1; | |
3941 | gfc_conv_expr (&se, e); | |
3942 | gfc_free_expr (e); | |
3943 | tmp = se.expr; | |
3944 | gfc_add_modify (&init, tmp, | |
3945 | fold_convert (TREE_TYPE (se.expr), | |
3946 | null_pointer_node)); | |
da2c4122 | 3947 | gfc_restore_backend_locus (&loc); |
617125a6 | 3948 | |
3949 | /* Pass back the string length on exit. */ | |
3950 | tmp = proc_sym->ts.u.cl->passed_length; | |
3951 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3952 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3953 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3954 | gfc_charlen_type_node, tmp, | |
3955 | proc_sym->ts.u.cl->backend_decl); | |
3956 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3957 | } | |
3958 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 3959 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3960 | } |
3961 | else | |
829d7a08 | 3962 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 3963 | } |
3964 | ||
87114d2e | 3965 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
3966 | should be done here so that the offsets and lbounds of arrays | |
3967 | are available. */ | |
da2c4122 | 3968 | gfc_save_backend_locus (&loc); |
3969 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 3970 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 3971 | gfc_restore_backend_locus (&loc); |
87114d2e | 3972 | |
4ee9c684 | 3973 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
3974 | { | |
6b3ceb4e | 3975 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
3976 | && (sym->ts.u.derived->attr.alloc_comp | |
3977 | || gfc_is_finalizable (sym->ts.u.derived, | |
3978 | NULL)); | |
8f3f9eab | 3979 | if (sym->assoc) |
3c82e013 | 3980 | continue; |
3981 | ||
a56d63bc | 3982 | if (sym->attr.subref_array_pointer |
3983 | && GFC_DECL_SPAN (sym->backend_decl) | |
3984 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
3985 | { | |
3986 | gfc_init_block (&tmpblock); | |
3987 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
3988 | build_int_cst (gfc_array_index_type, 0)); | |
3989 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3990 | NULL_TREE); | |
3991 | } | |
3992 | ||
85ae3cab | 3993 | if (sym->ts.type == BT_CLASS |
eb106faf | 3994 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 3995 | && CLASS_DATA (sym)->attr.allocatable) |
3996 | { | |
3997 | tree vptr; | |
3998 | ||
3999 | if (UNLIMITED_POLY (sym)) | |
4000 | vptr = null_pointer_node; | |
4001 | else | |
4002 | { | |
4003 | gfc_symbol *vsym; | |
4004 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4005 | vptr = gfc_get_symbol_decl (vsym); | |
4006 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4007 | } | |
4008 | ||
4009 | if (CLASS_DATA (sym)->attr.dimension | |
4010 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4011 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4012 | { |
4013 | tmp = gfc_class_data_get (sym->backend_decl); | |
4014 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4015 | } | |
4016 | else | |
4017 | tmp = null_pointer_node; | |
4018 | ||
4019 | DECL_INITIAL (sym->backend_decl) | |
4020 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4021 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4022 | } | |
c6793847 | 4023 | else if (sym->attr.dimension || sym->attr.codimension |
4024 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable)) | |
4ee9c684 | 4025 | { |
c6793847 | 4026 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4027 | symbol_attribute *array_attr; | |
4028 | gfc_array_spec *as; | |
4029 | array_type tmp; | |
4030 | ||
4031 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4032 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4033 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
4034 | tmp = as->type; | |
4035 | if (tmp == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4036 | tmp = AS_EXPLICIT; | |
4037 | switch (tmp) | |
4ee9c684 | 4038 | { |
4039 | case AS_EXPLICIT: | |
4040 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4041 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4042 | /* Allocatable and pointer arrays need to processed |
4043 | explicitly. */ | |
4044 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4045 | || (sym->ts.type == BT_CLASS | |
4046 | && CLASS_DATA (sym)->attr.class_pointer) | |
4047 | || array_attr->allocatable) | |
4ee9c684 | 4048 | { |
4049 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4050 | { |
4051 | gfc_save_backend_locus (&loc); | |
4052 | gfc_set_backend_locus (&sym->declared_at); | |
4053 | gfc_trans_static_array_pointer (sym); | |
4054 | gfc_restore_backend_locus (&loc); | |
4055 | } | |
4ee9c684 | 4056 | else |
25dd7350 | 4057 | { |
4058 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4059 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4060 | } |
4ee9c684 | 4061 | } |
c6793847 | 4062 | else if (sym->attr.codimension |
4063 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4064 | { |
4065 | gfc_init_block (&tmpblock); | |
4066 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4067 | &tmpblock, sym); | |
4068 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4069 | NULL_TREE); | |
4070 | continue; | |
4071 | } | |
197423f5 | 4072 | else |
4ee9c684 | 4073 | { |
da2c4122 | 4074 | gfc_save_backend_locus (&loc); |
4075 | gfc_set_backend_locus (&sym->declared_at); | |
4076 | ||
6b3ceb4e | 4077 | if (alloc_comp_or_fini) |
25dd7350 | 4078 | { |
4079 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4080 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4081 | } |
f0d4969f | 4082 | else if (sym->ts.type == BT_DERIVED |
4083 | && sym->value | |
4084 | && !sym->attr.data | |
4085 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4086 | { |
4087 | gfc_start_block (&tmpblock); | |
4088 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4089 | gfc_add_init_cleanup (block, |
c5faa799 | 4090 | gfc_finish_block (&tmpblock), |
4091 | NULL_TREE); | |
4092 | } | |
25dd7350 | 4093 | |
c5faa799 | 4094 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4095 | sym, block); |
4671339c | 4096 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4097 | } |
4098 | break; | |
4099 | ||
4100 | case AS_ASSUMED_SIZE: | |
4101 | /* Must be a dummy parameter. */ | |
c6793847 | 4102 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4103 | |
4104 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4105 | if (sym->attr.dummy) |
89ac8ba1 | 4106 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4107 | break; |
4ee9c684 | 4108 | |
4109 | case AS_ASSUMED_SHAPE: | |
4110 | /* Must be a dummy parameter. */ | |
22d678e8 | 4111 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4112 | |
89ac8ba1 | 4113 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4114 | break; |
4115 | ||
f00f6dd6 | 4116 | case AS_ASSUMED_RANK: |
4ee9c684 | 4117 | case AS_DEFERRED: |
25dd7350 | 4118 | seen_trans_deferred_array = true; |
89ac8ba1 | 4119 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4120 | break; |
4121 | ||
4122 | default: | |
22d678e8 | 4123 | gcc_unreachable (); |
4ee9c684 | 4124 | } |
6b3ceb4e | 4125 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4126 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4127 | } |
fd23cc08 | 4128 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4129 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4130 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4131 | continue; |
617125a6 | 4132 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4133 | && (sym->attr.allocatable |
4134 | || (sym->ts.type == BT_CLASS | |
4135 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4136 | { |
eb106faf | 4137 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4138 | { |
d0d776fb | 4139 | tree descriptor = NULL_TREE; |
4140 | ||
908e9973 | 4141 | /* Nullify and automatic deallocation of allocatable |
4142 | scalars. */ | |
908e9973 | 4143 | e = gfc_lval_expr_from_sym (sym); |
4144 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 4145 | gfc_add_data_component (e); |
908e9973 | 4146 | |
4147 | gfc_init_se (&se, NULL); | |
fd23cc08 | 4148 | if (sym->ts.type != BT_CLASS |
4149 | || sym->ts.u.derived->attr.dimension | |
4150 | || sym->ts.u.derived->attr.codimension) | |
4151 | { | |
4152 | se.want_pointer = 1; | |
4153 | gfc_conv_expr (&se, e); | |
4154 | } | |
4155 | else if (sym->ts.type == BT_CLASS | |
4156 | && !CLASS_DATA (sym)->attr.dimension | |
4157 | && !CLASS_DATA (sym)->attr.codimension) | |
4158 | { | |
4159 | se.want_pointer = 1; | |
4160 | gfc_conv_expr (&se, e); | |
4161 | } | |
4162 | else | |
4163 | { | |
c6793847 | 4164 | se.descriptor_only = 1; |
fd23cc08 | 4165 | gfc_conv_expr (&se, e); |
d0d776fb | 4166 | descriptor = se.expr; |
fd23cc08 | 4167 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
4168 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
4169 | } | |
908e9973 | 4170 | gfc_free_expr (e); |
4171 | ||
da2c4122 | 4172 | gfc_save_backend_locus (&loc); |
4173 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4174 | gfc_start_block (&init); |
617125a6 | 4175 | |
4176 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4177 | { | |
4178 | /* Nullify when entering the scope. */ | |
883d6776 | 4179 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
4180 | TREE_TYPE (se.expr), se.expr, | |
4181 | fold_convert (TREE_TYPE (se.expr), | |
4182 | null_pointer_node)); | |
4183 | if (sym->attr.optional) | |
4184 | { | |
4185 | tree present = gfc_conv_expr_present (sym); | |
4186 | tmp = build3_loc (input_location, COND_EXPR, | |
4187 | void_type_node, present, tmp, | |
4188 | build_empty_stmt (input_location)); | |
4189 | } | |
4190 | gfc_add_expr_to_block (&init, tmp); | |
617125a6 | 4191 | } |
4192 | ||
883d6776 | 4193 | if ((sym->attr.dummy || sym->attr.result) |
617125a6 | 4194 | && sym->ts.type == BT_CHARACTER |
4195 | && sym->ts.deferred) | |
4196 | { | |
4197 | /* Character length passed by reference. */ | |
4198 | tmp = sym->ts.u.cl->passed_length; | |
4199 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4200 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4201 | ||
4202 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4203 | /* Zero the string length when entering the scope. */ | |
4204 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
4205 | build_int_cst (gfc_charlen_type_node, 0)); | |
4206 | else | |
883d6776 | 4207 | { |
4208 | tree tmp2; | |
4209 | ||
4210 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4211 | gfc_charlen_type_node, | |
4212 | sym->ts.u.cl->backend_decl, tmp); | |
4213 | if (sym->attr.optional) | |
4214 | { | |
4215 | tree present = gfc_conv_expr_present (sym); | |
4216 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4217 | void_type_node, present, tmp2, | |
4218 | build_empty_stmt (input_location)); | |
4219 | } | |
4220 | gfc_add_expr_to_block (&init, tmp2); | |
4221 | } | |
617125a6 | 4222 | |
da2c4122 | 4223 | gfc_restore_backend_locus (&loc); |
4224 | ||
617125a6 | 4225 | /* Pass the final character length back. */ |
4226 | if (sym->attr.intent != INTENT_IN) | |
883d6776 | 4227 | { |
4228 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4229 | gfc_charlen_type_node, tmp, | |
4230 | sym->ts.u.cl->backend_decl); | |
4231 | if (sym->attr.optional) | |
4232 | { | |
4233 | tree present = gfc_conv_expr_present (sym); | |
4234 | tmp = build3_loc (input_location, COND_EXPR, | |
4235 | void_type_node, present, tmp, | |
4236 | build_empty_stmt (input_location)); | |
4237 | } | |
4238 | } | |
617125a6 | 4239 | else |
4240 | tmp = NULL_TREE; | |
4241 | } | |
da2c4122 | 4242 | else |
4243 | gfc_restore_backend_locus (&loc); | |
908e9973 | 4244 | |
4245 | /* Deallocate when leaving the scope. Nullifying is not | |
4246 | needed. */ | |
afb69dbf | 4247 | if (!sym->attr.result && !sym->attr.dummy |
4248 | && !sym->ns->proc_name->attr.is_main_program) | |
d0d776fb | 4249 | { |
4250 | if (sym->ts.type == BT_CLASS | |
4251 | && CLASS_DATA (sym)->attr.codimension) | |
4252 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4253 | NULL_TREE, NULL_TREE, | |
4254 | NULL_TREE, true, NULL, | |
4255 | true); | |
4256 | else | |
c23adf93 | 4257 | { |
4258 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
4259 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, | |
4260 | true, expr, sym->ts); | |
4261 | gfc_free_expr (expr); | |
4262 | } | |
d0d776fb | 4263 | } |
afc44c79 | 4264 | if (sym->ts.type == BT_CLASS) |
4265 | { | |
4266 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4267 | gfc_symbol *vtab; |
afc44c79 | 4268 | tree rhs; |
da2c4122 | 4269 | |
4270 | gfc_save_backend_locus (&loc); | |
4271 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4272 | e = gfc_lval_expr_from_sym (sym); |
4273 | gfc_add_vptr_component (e); | |
4274 | gfc_init_se (&se, NULL); | |
4275 | se.want_pointer = 1; | |
4276 | gfc_conv_expr (&se, e); | |
4277 | gfc_free_expr (e); | |
a90fe829 | 4278 | if (UNLIMITED_POLY (sym)) |
4279 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4280 | else | |
4281 | { | |
4282 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4283 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4284 | gfc_get_symbol_decl (vtab)); | |
4285 | } | |
afc44c79 | 4286 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4287 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4288 | } |
4289 | ||
89ac8ba1 | 4290 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4291 | } |
0a96a7cc | 4292 | } |
617125a6 | 4293 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4294 | { | |
4295 | tree tmp = NULL; | |
4296 | stmtblock_t init; | |
4297 | ||
4298 | /* If we get to here, all that should be left are pointers. */ | |
4299 | gcc_assert (sym->attr.pointer); | |
4300 | ||
4301 | if (sym->attr.dummy) | |
4302 | { | |
4303 | gfc_start_block (&init); | |
4304 | ||
4305 | /* Character length passed by reference. */ | |
4306 | tmp = sym->ts.u.cl->passed_length; | |
4307 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4308 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4309 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
4310 | /* Pass the final character length back. */ | |
4311 | if (sym->attr.intent != INTENT_IN) | |
4312 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4313 | gfc_charlen_type_node, tmp, | |
4314 | sym->ts.u.cl->backend_decl); | |
4315 | else | |
4316 | tmp = NULL_TREE; | |
4317 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4318 | } | |
4319 | } | |
3e715c81 | 4320 | else if (sym->ts.deferred) |
4321 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4322 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4323 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4324 | else if (sym->ts.type == BT_CHARACTER) |
4325 | { | |
4671339c | 4326 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4327 | gfc_set_backend_locus (&sym->declared_at); |
4328 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4329 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4330 | else |
89ac8ba1 | 4331 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4332 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4333 | } |
c8f1568f | 4334 | else if (sym->attr.assign) |
4335 | { | |
4671339c | 4336 | gfc_save_backend_locus (&loc); |
c8f1568f | 4337 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4338 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4339 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4340 | } |
f0d4969f | 4341 | else if (sym->ts.type == BT_DERIVED |
4342 | && sym->value | |
4343 | && !sym->attr.data | |
4344 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4345 | { |
4346 | gfc_start_block (&tmpblock); | |
4347 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4348 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4349 | NULL_TREE); |
4350 | } | |
a90fe829 | 4351 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 4352 | gcc_unreachable (); |
4ee9c684 | 4353 | } |
4354 | ||
c5faa799 | 4355 | gfc_init_block (&tmpblock); |
d4163395 | 4356 | |
6777213b | 4357 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4358 | { |
4359 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4360 | { | |
eeebe20b | 4361 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4362 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4363 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4364 | } |
1e853e89 | 4365 | } |
d4163395 | 4366 | |
4367 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4368 | && current_fake_result_decl != NULL) | |
4369 | { | |
eeebe20b | 4370 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4371 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4372 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4373 | } |
4374 | ||
89ac8ba1 | 4375 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4376 | } |
4377 | ||
b594087e | 4378 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4379 | { |
2ef51f0e | 4380 | typedef const char *compare_type; |
df4d540f | 4381 | |
2ef51f0e | 4382 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4383 | static bool | |
4384 | equal (module_htab_entry *a, const char *b) | |
4385 | { | |
4386 | return !strcmp (a->name, b); | |
4387 | } | |
4388 | }; | |
4389 | ||
4390 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4391 | |
4392 | /* Hash and equality functions for module_htab's decls. */ | |
4393 | ||
2ef51f0e | 4394 | hashval_t |
4395 | module_decl_hasher::hash (tree t) | |
df4d540f | 4396 | { |
df4d540f | 4397 | const_tree n = DECL_NAME (t); |
4398 | if (n == NULL_TREE) | |
4399 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4400 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4401 | } |
4402 | ||
2ef51f0e | 4403 | bool |
4404 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4405 | { |
df4d540f | 4406 | const_tree n1 = DECL_NAME (t1); |
4407 | if (n1 == NULL_TREE) | |
4408 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4409 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4410 | } |
4411 | ||
4412 | struct module_htab_entry * | |
4413 | gfc_find_module (const char *name) | |
4414 | { | |
df4d540f | 4415 | if (! module_htab) |
2ef51f0e | 4416 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4417 | |
2ef51f0e | 4418 | module_htab_entry **slot |
4419 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4420 | if (*slot == NULL) |
4421 | { | |
25a27413 | 4422 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4423 | |
4424 | entry->name = gfc_get_string (name); | |
2ef51f0e | 4425 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4426 | *slot = entry; | |
df4d540f | 4427 | } |
2ef51f0e | 4428 | return *slot; |
df4d540f | 4429 | } |
4430 | ||
4431 | void | |
4432 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4433 | { | |
df4d540f | 4434 | const char *name; |
4435 | ||
4436 | if (DECL_NAME (decl)) | |
4437 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4438 | else | |
4439 | { | |
4440 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4441 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4442 | } | |
2ef51f0e | 4443 | tree *slot |
4444 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4445 | INSERT); | |
df4d540f | 4446 | if (*slot == NULL) |
2ef51f0e | 4447 | *slot = decl; |
df4d540f | 4448 | } |
4449 | ||
c40a5c1b | 4450 | |
4451 | /* Generate debugging symbols for namelists. This function must come after | |
4452 | generate_local_decl to ensure that the variables in the namelist are | |
4453 | already declared. */ | |
4454 | ||
4455 | static tree | |
4456 | generate_namelist_decl (gfc_symbol * sym) | |
4457 | { | |
4458 | gfc_namelist *nml; | |
4459 | tree decl; | |
4460 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4461 | ||
4462 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4463 | for (nml = sym->namelist; nml; nml = nml->next) | |
4464 | { | |
4465 | if (nml->sym->backend_decl == NULL_TREE) | |
4466 | { | |
4467 | nml->sym->attr.referenced = 1; | |
4468 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4469 | } | |
0a32260c | 4470 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4471 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4472 | } | |
4473 | ||
4474 | decl = make_node (NAMELIST_DECL); | |
4475 | TREE_TYPE (decl) = void_type_node; | |
4476 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4477 | DECL_NAME (decl) = get_identifier (sym->name); | |
4478 | return decl; | |
4479 | } | |
4480 | ||
4481 | ||
4ee9c684 | 4482 | /* Output an initialized decl for a module variable. */ |
4483 | ||
4484 | static void | |
4485 | gfc_create_module_variable (gfc_symbol * sym) | |
4486 | { | |
4487 | tree decl; | |
4ee9c684 | 4488 | |
d77f260f | 4489 | /* Module functions with alternate entries are dealt with later and |
4490 | would get caught by the next condition. */ | |
4491 | if (sym->attr.entry) | |
4492 | return; | |
4493 | ||
c5d33754 | 4494 | /* Make sure we convert the types of the derived types from iso_c_binding |
4495 | into (void *). */ | |
4496 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4497 | && sym->ts.type == BT_DERIVED) | |
4498 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4499 | ||
df4d540f | 4500 | if (sym->attr.flavor == FL_DERIVED |
4501 | && sym->backend_decl | |
4502 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4503 | { | |
4504 | decl = sym->backend_decl; | |
4505 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4506 | |
044bbd71 | 4507 | if (!sym->attr.use_assoc) |
9f1470cb | 4508 | { |
4509 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4510 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4511 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4512 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4513 | == sym->ns->proc_name->backend_decl); | |
4514 | } | |
df4d540f | 4515 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4516 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4517 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4518 | } | |
4519 | ||
cf269acc | 4520 | /* Only output variables, procedure pointers and array valued, |
4521 | or derived type, parameters. */ | |
4ee9c684 | 4522 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4523 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4524 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4525 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4526 | return; |
4527 | ||
df4d540f | 4528 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4529 | { | |
4530 | decl = sym->backend_decl; | |
16a40513 | 4531 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4532 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4533 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4534 | gfc_module_add_decl (cur_module, decl); | |
4535 | } | |
4536 | ||
d43a7f7f | 4537 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4538 | COMMONs and Cray pointees will already have been generated. */ |
4539 | if (sym->attr.use_assoc || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4540 | return; |
4541 | ||
2b685f8e | 4542 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4543 | if (sym->backend_decl |
df4d540f | 4544 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4545 | return; | |
2b685f8e | 4546 | |
23d075f4 | 4547 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4548 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4549 | sym->name); | |
4ee9c684 | 4550 | |
92983bfd | 4551 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4552 | && (sym->attr.access == ACCESS_UNKNOWN | |
4553 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4554 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4555 | && flag_module_private)))) |
92983bfd | 4556 | sym->attr.access = ACCESS_PRIVATE; |
4557 | ||
4558 | if (warn_unused_variable && !sym->attr.referenced | |
4559 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4560 | gfc_warning (OPT_Wunused_value, |
4561 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4562 | sym->name, &sym->declared_at); |
4563 | ||
4ee9c684 | 4564 | /* We always want module variables to be created. */ |
4565 | sym->attr.referenced = 1; | |
4566 | /* Create the decl. */ | |
4567 | decl = gfc_get_symbol_decl (sym); | |
4568 | ||
4ee9c684 | 4569 | /* Create the variable. */ |
4570 | pushdecl (decl); | |
df4d540f | 4571 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4572 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4573 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4574 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4575 | |
4576 | /* Also add length of strings. */ | |
4577 | if (sym->ts.type == BT_CHARACTER) | |
4578 | { | |
4579 | tree length; | |
4580 | ||
eeebe20b | 4581 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4582 | gcc_assert (length || sym->attr.proc_pointer); |
4583 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4584 | { |
4585 | pushdecl (length); | |
b2c4af5e | 4586 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4587 | } |
4588 | } | |
a961ca30 | 4589 | |
4590 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4591 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4592 | has_coarray_vars = true; | |
4ee9c684 | 4593 | } |
4594 | ||
51d9479b | 4595 | /* Emit debug information for USE statements. */ |
df4d540f | 4596 | |
4597 | static void | |
4598 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4599 | { | |
4600 | gfc_use_list *use_stmt; | |
4601 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4602 | { | |
4603 | struct module_htab_entry *entry | |
4604 | = gfc_find_module (use_stmt->module_name); | |
4605 | gfc_use_rename *rent; | |
4606 | ||
4607 | if (entry->namespace_decl == NULL) | |
4608 | { | |
4609 | entry->namespace_decl | |
e60a6f7b | 4610 | = build_decl (input_location, |
4611 | NAMESPACE_DECL, | |
df4d540f | 4612 | get_identifier (use_stmt->module_name), |
4613 | void_type_node); | |
4614 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4615 | } | |
51d9479b | 4616 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4617 | if (!use_stmt->only_flag) |
4618 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4619 | NULL_TREE, | |
4620 | ns->proc_name->backend_decl, | |
4621 | false); | |
4622 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4623 | { | |
4624 | tree decl, local_name; | |
df4d540f | 4625 | |
4626 | if (rent->op != INTRINSIC_NONE) | |
4627 | continue; | |
4628 | ||
2ef51f0e | 4629 | hashval_t hash = htab_hash_string (rent->use_name); |
4630 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
4631 | INSERT); | |
df4d540f | 4632 | if (*slot == NULL) |
4633 | { | |
4634 | gfc_symtree *st; | |
4635 | ||
4636 | st = gfc_find_symtree (ns->sym_root, | |
4637 | rent->local_name[0] | |
4638 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4639 | |
4640 | /* The following can happen if a derived type is renamed. */ | |
4641 | if (!st) | |
4642 | { | |
4643 | char *name; | |
4644 | name = xstrdup (rent->local_name[0] | |
4645 | ? rent->local_name : rent->use_name); | |
4646 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4647 | st = gfc_find_symtree (ns->sym_root, name); | |
4648 | free (name); | |
4649 | gcc_assert (st); | |
4650 | } | |
857c96ba | 4651 | |
4652 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4653 | local symbol (see PR41062). */ | |
4654 | if (!st->n.sym->attr.use_assoc) | |
4655 | continue; | |
4656 | ||
51d9479b | 4657 | if (st->n.sym->backend_decl |
4658 | && DECL_P (st->n.sym->backend_decl) | |
4659 | && st->n.sym->module | |
4660 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4661 | { |
51d9479b | 4662 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4663 | || (TREE_CODE (st->n.sym->backend_decl) | |
4664 | != VAR_DECL)); | |
df4d540f | 4665 | decl = copy_node (st->n.sym->backend_decl); |
4666 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4667 | DECL_EXTERNAL (decl) = 1; | |
4668 | DECL_IGNORED_P (decl) = 0; | |
4669 | DECL_INITIAL (decl) = NULL_TREE; | |
4670 | } | |
c40a5c1b | 4671 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
4672 | && st->n.sym->attr.use_only | |
4673 | && st->n.sym->module | |
4674 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
4675 | == 0) | |
4676 | { | |
4677 | decl = generate_namelist_decl (st->n.sym); | |
4678 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4679 | DECL_EXTERNAL (decl) = 1; | |
4680 | DECL_IGNORED_P (decl) = 0; | |
4681 | DECL_INITIAL (decl) = NULL_TREE; | |
4682 | } | |
df4d540f | 4683 | else |
4684 | { | |
4685 | *slot = error_mark_node; | |
2ef51f0e | 4686 | entry->decls->clear_slot (slot); |
df4d540f | 4687 | continue; |
4688 | } | |
4689 | *slot = decl; | |
4690 | } | |
4691 | decl = (tree) *slot; | |
4692 | if (rent->local_name[0]) | |
4693 | local_name = get_identifier (rent->local_name); | |
4694 | else | |
4695 | local_name = NULL_TREE; | |
51d9479b | 4696 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4697 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4698 | ns->proc_name->backend_decl, | |
4699 | !use_stmt->only_flag); | |
4700 | } | |
4701 | } | |
4ee9c684 | 4702 | } |
4703 | ||
51d9479b | 4704 | |
2eb674c9 | 4705 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4706 | will handle. */ | |
4707 | ||
4708 | static bool | |
4709 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4710 | bool pointer) | |
4711 | { | |
4712 | gfc_constructor *c; | |
4713 | gfc_component *cm; | |
4714 | ||
4715 | if (pointer) | |
4716 | return true; | |
4717 | else if (array) | |
4718 | { | |
4719 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4720 | return true; | |
4721 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4722 | return check_constant_initializer (expr, ts, false, false); | |
4723 | else if (expr->expr_type != EXPR_ARRAY) | |
4724 | return false; | |
126387b5 | 4725 | for (c = gfc_constructor_first (expr->value.constructor); |
4726 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4727 | { |
4728 | if (c->iterator) | |
4729 | return false; | |
4730 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4731 | { | |
4732 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4733 | return false; | |
4734 | } | |
4735 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4736 | return false; | |
4737 | } | |
4738 | return true; | |
4739 | } | |
4740 | else switch (ts->type) | |
4741 | { | |
4742 | case BT_DERIVED: | |
4743 | if (expr->expr_type != EXPR_STRUCTURE) | |
4744 | return false; | |
eeebe20b | 4745 | cm = expr->ts.u.derived->components; |
126387b5 | 4746 | for (c = gfc_constructor_first (expr->value.constructor); |
4747 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4748 | { |
4749 | if (!c->expr || cm->attr.allocatable) | |
4750 | continue; | |
4751 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4752 | cm->attr.dimension, | |
4753 | cm->attr.pointer)) | |
4754 | return false; | |
4755 | } | |
4756 | return true; | |
4757 | default: | |
4758 | return expr->expr_type == EXPR_CONSTANT; | |
4759 | } | |
4760 | } | |
4761 | ||
4762 | /* Emit debug info for parameters and unreferenced variables with | |
4763 | initializers. */ | |
4764 | ||
4765 | static void | |
4766 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4767 | { | |
4768 | tree decl; | |
4769 | ||
4770 | if (sym->attr.flavor != FL_PARAMETER | |
4771 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4772 | return; | |
4773 | ||
4774 | if (sym->backend_decl != NULL | |
4775 | || sym->value == NULL | |
4776 | || sym->attr.use_assoc | |
4777 | || sym->attr.dummy | |
4778 | || sym->attr.result | |
4779 | || sym->attr.function | |
4780 | || sym->attr.intrinsic | |
4781 | || sym->attr.pointer | |
4782 | || sym->attr.allocatable | |
4783 | || sym->attr.cray_pointee | |
4784 | || sym->attr.threadprivate | |
4785 | || sym->attr.is_bind_c | |
4786 | || sym->attr.subref_array_pointer | |
4787 | || sym->attr.assign) | |
4788 | return; | |
4789 | ||
4790 | if (sym->ts.type == BT_CHARACTER) | |
4791 | { | |
eeebe20b | 4792 | gfc_conv_const_charlen (sym->ts.u.cl); |
4793 | if (sym->ts.u.cl->backend_decl == NULL | |
4794 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4795 | return; |
4796 | } | |
eeebe20b | 4797 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4798 | return; |
4799 | ||
4800 | if (sym->as) | |
4801 | { | |
4802 | int n; | |
4803 | ||
4804 | if (sym->as->type != AS_EXPLICIT) | |
4805 | return; | |
4806 | for (n = 0; n < sym->as->rank; n++) | |
4807 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4808 | || sym->as->upper[n] == NULL | |
4809 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4810 | return; | |
4811 | } | |
4812 | ||
4813 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4814 | sym->attr.dimension, false)) | |
4815 | return; | |
4816 | ||
4fe73152 | 4817 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 4818 | return; |
4819 | ||
2eb674c9 | 4820 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4821 | decl = build_decl (input_location, |
4822 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4823 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4824 | if (sym->attr.flavor == FL_PARAMETER) | |
4825 | TREE_READONLY (decl) = 1; | |
4826 | gfc_set_decl_location (decl, &sym->declared_at); | |
4827 | if (sym->attr.dimension) | |
4828 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4829 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4830 | TREE_STATIC (decl) = 1; | |
4831 | TREE_USED (decl) = 1; | |
4832 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4833 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4834 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4835 | TREE_TYPE (decl), | |
4836 | sym->attr.dimension, | |
4837 | false, false); | |
3a1c9df2 | 4838 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 4839 | } |
4840 | ||
a961ca30 | 4841 | |
4842 | static void | |
4843 | generate_coarray_sym_init (gfc_symbol *sym) | |
4844 | { | |
4845 | tree tmp, size, decl, token; | |
498b946e | 4846 | bool is_lock_type; |
4847 | int reg_type; | |
a961ca30 | 4848 | |
4849 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 4850 | || sym->attr.use_assoc || !sym->attr.referenced |
4851 | || sym->attr.select_type_temporary) | |
a961ca30 | 4852 | return; |
4853 | ||
4854 | decl = sym->backend_decl; | |
4855 | TREE_USED(decl) = 1; | |
4856 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4857 | ||
498b946e | 4858 | is_lock_type = sym->ts.type == BT_DERIVED |
4859 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
4860 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
4861 | ||
a961ca30 | 4862 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
4863 | to make sure the variable is not optimized away. */ | |
4864 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4865 | ||
498b946e | 4866 | /* For lock types, we pass the array size as only the library knows the |
4867 | size of the variable. */ | |
4868 | if (is_lock_type) | |
4869 | size = gfc_index_one_node; | |
4870 | else | |
4871 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 4872 | |
a90fe829 | 4873 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 4874 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
4875 | fold_convert (size_type_node, size), | |
4876 | build_int_cst (size_type_node, 1)); | |
4877 | ||
a961ca30 | 4878 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4879 | { | |
4880 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4881 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4882 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4883 | } |
4884 | ||
4885 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4886 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4887 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 4888 | if (is_lock_type) |
4889 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
4890 | else | |
4891 | reg_type = GFC_CAF_COARRAY_STATIC; | |
a961ca30 | 4892 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, |
498b946e | 4893 | build_int_cst (integer_type_node, reg_type), |
a961ca30 | 4894 | token, null_pointer_node, /* token, stat. */ |
4895 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4896 | build_int_cst (integer_type_node, 0)); | |
a961ca30 | 4897 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); |
4898 | ||
a961ca30 | 4899 | /* Handle "static" initializer. */ |
4900 | if (sym->value) | |
4901 | { | |
4902 | sym->attr.pointer = 1; | |
4903 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4904 | true, false); | |
4905 | sym->attr.pointer = 0; | |
4906 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4907 | } | |
4908 | } | |
4909 | ||
4910 | ||
4911 | /* Generate constructor function to initialize static, nonallocatable | |
4912 | coarrays. */ | |
4913 | ||
4914 | static void | |
4915 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4916 | { | |
4917 | tree fndecl, tmp, decl, save_fn_decl; | |
4918 | ||
4919 | save_fn_decl = current_function_decl; | |
4920 | push_function_context (); | |
4921 | ||
4922 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4923 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4924 | create_tmp_var_name ("_caf_init"), tmp); | |
4925 | ||
4926 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4927 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4928 | ||
4929 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4930 | DECL_ARTIFICIAL (decl) = 1; | |
4931 | DECL_IGNORED_P (decl) = 1; | |
4932 | DECL_CONTEXT (decl) = fndecl; | |
4933 | DECL_RESULT (fndecl) = decl; | |
4934 | ||
4935 | pushdecl (fndecl); | |
4936 | current_function_decl = fndecl; | |
4937 | announce_function (fndecl); | |
4938 | ||
4939 | rest_of_decl_compilation (fndecl, 0, 0); | |
4940 | make_decl_rtl (fndecl); | |
00cf115c | 4941 | allocate_struct_function (fndecl, false); |
a961ca30 | 4942 | |
cde2be84 | 4943 | pushlevel (); |
a961ca30 | 4944 | gfc_init_block (&caf_init_block); |
4945 | ||
4946 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
4947 | ||
4948 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
4949 | decl = getdecls (); | |
4950 | ||
cde2be84 | 4951 | poplevel (1, 1); |
a961ca30 | 4952 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
4953 | ||
4954 | DECL_SAVED_TREE (fndecl) | |
4955 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
4956 | DECL_INITIAL (fndecl)); | |
4957 | dump_function (TDI_original, fndecl); | |
4958 | ||
4959 | cfun->function_end_locus = input_location; | |
4960 | set_cfun (NULL); | |
4961 | ||
4962 | if (decl_function_context (fndecl)) | |
415d1b9a | 4963 | (void) cgraph_node::create (fndecl); |
a961ca30 | 4964 | else |
35ee1c66 | 4965 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 4966 | |
4967 | pop_function_context (); | |
4968 | current_function_decl = save_fn_decl; | |
4969 | } | |
4970 | ||
4971 | ||
c40a5c1b | 4972 | static void |
4973 | create_module_nml_decl (gfc_symbol *sym) | |
4974 | { | |
4975 | if (sym->attr.flavor == FL_NAMELIST) | |
4976 | { | |
4977 | tree decl = generate_namelist_decl (sym); | |
4978 | pushdecl (decl); | |
4979 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
4980 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4981 | rest_of_decl_compilation (decl, 1, 0); | |
4982 | gfc_module_add_decl (cur_module, decl); | |
4983 | } | |
4984 | } | |
4985 | ||
4986 | ||
51d9479b | 4987 | /* Generate all the required code for module variables. */ |
4988 | ||
4989 | void | |
4990 | gfc_generate_module_vars (gfc_namespace * ns) | |
4991 | { | |
4992 | module_namespace = ns; | |
4993 | cur_module = gfc_find_module (ns->proc_name->name); | |
4994 | ||
4995 | /* Check if the frontend left the namespace in a reasonable state. */ | |
4996 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
4997 | ||
4998 | /* Generate COMMON blocks. */ | |
4999 | gfc_trans_common (ns); | |
5000 | ||
a961ca30 | 5001 | has_coarray_vars = false; |
5002 | ||
51d9479b | 5003 | /* Create decls for all the module variables. */ |
5004 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5005 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5006 | |
4fe73152 | 5007 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5008 | generate_coarray_init (ns); |
5009 | ||
51d9479b | 5010 | cur_module = NULL; |
5011 | ||
5012 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5013 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5014 | } |
5015 | ||
5016 | ||
4ee9c684 | 5017 | static void |
5018 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5019 | { | |
5020 | gfc_namespace *ns; | |
5021 | ||
5022 | /* We create all the prototypes before generating any code. */ | |
5023 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5024 | { | |
5025 | /* Skip namespaces from used modules. */ | |
5026 | if (ns->parent != parent) | |
5027 | continue; | |
5028 | ||
d896f9b3 | 5029 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5030 | } |
5031 | ||
5032 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5033 | { | |
5034 | /* Skip namespaces from used modules. */ | |
5035 | if (ns->parent != parent) | |
5036 | continue; | |
5037 | ||
5038 | gfc_generate_function_code (ns); | |
5039 | } | |
5040 | } | |
5041 | ||
5042 | ||
d95efb59 | 5043 | /* Drill down through expressions for the array specification bounds and |
5044 | character length calling generate_local_decl for all those variables | |
5045 | that have not already been declared. */ | |
5046 | ||
5047 | static void | |
5048 | generate_local_decl (gfc_symbol *); | |
5049 | ||
1acb400a | 5050 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5051 | |
1acb400a | 5052 | static bool |
5053 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5054 | int *f ATTRIBUTE_UNUSED) | |
5055 | { | |
5056 | if (e->expr_type != EXPR_VARIABLE | |
5057 | || sym == e->symtree->n.sym | |
d95efb59 | 5058 | || e->symtree->n.sym->mark |
5059 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5060 | return false; |
d95efb59 | 5061 | |
1acb400a | 5062 | generate_local_decl (e->symtree->n.sym); |
5063 | return false; | |
5064 | } | |
d95efb59 | 5065 | |
1acb400a | 5066 | static void |
5067 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5068 | { | |
5069 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5070 | } |
5071 | ||
5072 | ||
f6d0e37a | 5073 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5074 | |
5075 | static void | |
5076 | generate_dependency_declarations (gfc_symbol *sym) | |
5077 | { | |
5078 | int i; | |
5079 | ||
5080 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5081 | && sym->ts.u.cl |
5082 | && sym->ts.u.cl->length | |
5083 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5084 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5085 | |
5086 | if (sym->as && sym->as->rank) | |
5087 | { | |
5088 | for (i = 0; i < sym->as->rank; i++) | |
5089 | { | |
5090 | generate_expr_decls (sym, sym->as->lower[i]); | |
5091 | generate_expr_decls (sym, sym->as->upper[i]); | |
5092 | } | |
5093 | } | |
5094 | } | |
5095 | ||
5096 | ||
4ee9c684 | 5097 | /* Generate decls for all local variables. We do this to ensure correct |
5098 | handling of expressions which only appear in the specification of | |
5099 | other functions. */ | |
5100 | ||
5101 | static void | |
5102 | generate_local_decl (gfc_symbol * sym) | |
5103 | { | |
5104 | if (sym->attr.flavor == FL_VARIABLE) | |
5105 | { | |
a961ca30 | 5106 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5107 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5108 | has_coarray_vars = true; | |
5109 | ||
d95efb59 | 5110 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5111 | generate_dependency_declarations (sym); |
d95efb59 | 5112 | |
4ee9c684 | 5113 | if (sym->attr.referenced) |
8714fc76 | 5114 | gfc_get_symbol_decl (sym); |
4acad347 | 5115 | |
5116 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5117 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5118 | { |
4acad347 | 5119 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5120 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5121 | { |
5122 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5123 | gfc_warning (OPT_Wunused_dummy_argument, |
5124 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5125 | "INTENT(OUT) but was not set", sym->name, |
5126 | &sym->declared_at); | |
48cb4748 | 5127 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5128 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5129 | gfc_warning (OPT_Wunused_dummy_argument, |
5130 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5131 | "declared INTENT(OUT) but was not set and " |
5132 | "does not have a default initializer", | |
5133 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5134 | if (sym->backend_decl != NULL_TREE) |
5135 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5136 | } |
8290d53f | 5137 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5138 | { |
4166acc7 | 5139 | gfc_warning (OPT_Wunused_dummy_argument, |
5140 | "Unused dummy argument %qs at %L", sym->name, | |
5141 | &sym->declared_at); | |
90a4a5a6 | 5142 | if (sym->backend_decl != NULL_TREE) |
5143 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5144 | } | |
7c0ca46e | 5145 | } |
4acad347 | 5146 | |
f888a3fb | 5147 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5148 | block or a namelist. */ |
36609028 | 5149 | else if (warn_unused_variable |
1dbfac29 | 5150 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5151 | { |
1dbfac29 | 5152 | if (sym->attr.use_only) |
5153 | { | |
4166acc7 | 5154 | gfc_warning (OPT_Wunused_variable, |
5155 | "Unused module variable %qs which has been " | |
1dbfac29 | 5156 | "explicitly imported at %L", sym->name, |
5157 | &sym->declared_at); | |
5158 | if (sym->backend_decl != NULL_TREE) | |
5159 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5160 | } | |
5161 | else if (!sym->attr.use_assoc) | |
5162 | { | |
4166acc7 | 5163 | gfc_warning (OPT_Wunused_variable, |
5164 | "Unused variable %qs declared at %L", | |
1dbfac29 | 5165 | sym->name, &sym->declared_at); |
5166 | if (sym->backend_decl != NULL_TREE) | |
5167 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5168 | } | |
90a4a5a6 | 5169 | } |
8714fc76 | 5170 | |
d4163395 | 5171 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5172 | references the length variable, so force gfc_get_symbol_decl | |
5173 | even when not referenced. If optimize > 0, it will be optimized | |
5174 | away anyway. But do this only after emitting -Wunused-parameter | |
5175 | warning if requested. */ | |
8714fc76 | 5176 | if (sym->attr.dummy && !sym->attr.referenced |
5177 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5178 | && sym->ts.u.cl->backend_decl != NULL |
5179 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 5180 | { |
5181 | sym->attr.referenced = 1; | |
5182 | gfc_get_symbol_decl (sym); | |
5183 | } | |
76776e6d | 5184 | |
d0163401 | 5185 | /* INTENT(out) dummy arguments and result variables with allocatable |
5186 | components are reset by default and need to be set referenced to | |
5187 | generate the code for nullification and automatic lengths. */ | |
5188 | if (!sym->attr.referenced | |
8714fc76 | 5189 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5190 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5191 | && !sym->attr.pointer |
d0163401 | 5192 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5193 | || | |
5194 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5195 | { |
5196 | sym->attr.referenced = 1; | |
5197 | gfc_get_symbol_decl (sym); | |
5198 | } | |
5199 | ||
e72f979a | 5200 | /* Check for dependencies in the array specification and string |
5201 | length, adding the necessary declarations to the function. We | |
5202 | mark the symbol now, as well as in traverse_ns, to prevent | |
5203 | getting stuck in a circular dependency. */ | |
5204 | sym->mark = 1; | |
4ee9c684 | 5205 | } |
5dd246c1 | 5206 | else if (sym->attr.flavor == FL_PARAMETER) |
5207 | { | |
6ecfe89d | 5208 | if (warn_unused_parameter |
f326eb81 | 5209 | && !sym->attr.referenced) |
5210 | { | |
5211 | if (!sym->attr.use_assoc) | |
4166acc7 | 5212 | gfc_warning (OPT_Wunused_parameter, |
5213 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5214 | &sym->declared_at); |
5215 | else if (sym->attr.use_only) | |
4166acc7 | 5216 | gfc_warning (OPT_Wunused_parameter, |
5217 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5218 | "imported at %L", sym->name, &sym->declared_at); |
5219 | } | |
5dd246c1 | 5220 | } |
fa7b6574 | 5221 | else if (sym->attr.flavor == FL_PROCEDURE) |
5222 | { | |
5223 | /* TODO: move to the appropriate place in resolve.c. */ | |
5224 | if (warn_return_type | |
5225 | && sym->attr.function | |
5226 | && sym->result | |
5227 | && sym != sym->result | |
5228 | && !sym->result->attr.referenced | |
5229 | && !sym->attr.use_assoc | |
5230 | && sym->attr.if_source != IFSRC_IFBODY) | |
5231 | { | |
4166acc7 | 5232 | gfc_warning (OPT_Wreturn_type, |
5233 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5234 | "%L not set", sym->result->name, sym->name, |
5235 | &sym->result->declared_at); | |
5236 | ||
5237 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5238 | sym->result->mark = 1; |
fa7b6574 | 5239 | } |
5240 | } | |
c5d33754 | 5241 | |
19ba2ad8 | 5242 | if (sym->attr.dummy == 1) |
5243 | { | |
5244 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5245 | procedures if they are passed by value. The tree type for them will | |
5246 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5247 | what C would do with characters passed by-value. The value attribute | |
5248 | implies the dummy is a scalar. */ | |
5249 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5250 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5251 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5252 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5253 | |
5254 | /* Unused procedure passed as dummy argument. */ | |
5255 | if (sym->attr.flavor == FL_PROCEDURE) | |
5256 | { | |
5257 | if (!sym->attr.referenced) | |
5258 | { | |
8290d53f | 5259 | if (warn_unused_dummy_argument) |
4166acc7 | 5260 | gfc_warning (OPT_Wunused_dummy_argument, |
5261 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5262 | &sym->declared_at); |
fc6338c7 | 5263 | } |
5264 | ||
5265 | /* Silence bogus "unused parameter" warnings from the | |
5266 | middle end. */ | |
5267 | if (sym->backend_decl != NULL_TREE) | |
5268 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5269 | } | |
19ba2ad8 | 5270 | } |
5271 | ||
c5d33754 | 5272 | /* Make sure we convert the types of the derived types from iso_c_binding |
5273 | into (void *). */ | |
5274 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5275 | && sym->ts.type == BT_DERIVED) | |
5276 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5277 | } |
5278 | ||
c40a5c1b | 5279 | |
5280 | static void | |
5281 | generate_local_nml_decl (gfc_symbol * sym) | |
5282 | { | |
5283 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5284 | { | |
5285 | tree decl = generate_namelist_decl (sym); | |
5286 | pushdecl (decl); | |
5287 | } | |
5288 | } | |
5289 | ||
5290 | ||
4ee9c684 | 5291 | static void |
5292 | generate_local_vars (gfc_namespace * ns) | |
5293 | { | |
5294 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5295 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5296 | } |
5297 | ||
5298 | ||
1b716045 | 5299 | /* Generate a switch statement to jump to the correct entry point. Also |
5300 | creates the label decls for the entry points. */ | |
4ee9c684 | 5301 | |
1b716045 | 5302 | static tree |
5303 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5304 | { |
1b716045 | 5305 | stmtblock_t block; |
5306 | tree label; | |
5307 | tree tmp; | |
5308 | tree val; | |
4ee9c684 | 5309 | |
1b716045 | 5310 | gfc_init_block (&block); |
5311 | for (; el; el = el->next) | |
5312 | { | |
5313 | /* Add the case label. */ | |
b797d6d3 | 5314 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5315 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5316 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5317 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5318 | |
1b716045 | 5319 | /* And jump to the actual entry point. */ |
5320 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5321 | tmp = build1_v (GOTO_EXPR, label); |
5322 | gfc_add_expr_to_block (&block, tmp); | |
5323 | ||
5324 | /* Save the label decl. */ | |
5325 | el->label = label; | |
5326 | } | |
5327 | tmp = gfc_finish_block (&block); | |
5328 | /* The first argument selects the entry point. */ | |
5329 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 5330 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
5331 | val, tmp, NULL_TREE); | |
1b716045 | 5332 | return tmp; |
4ee9c684 | 5333 | } |
5334 | ||
6374121b | 5335 | |
a4abf8a0 | 5336 | /* Add code to string lengths of actual arguments passed to a function against |
5337 | the expected lengths of the dummy arguments. */ | |
5338 | ||
5339 | static void | |
5340 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5341 | { | |
5342 | gfc_formal_arglist *formal; | |
5343 | ||
6777213b | 5344 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5345 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5346 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5347 | { |
5348 | enum tree_code comparison; | |
5349 | tree cond; | |
5350 | tree argname; | |
5351 | gfc_symbol *fsym; | |
5352 | gfc_charlen *cl; | |
5353 | const char *message; | |
5354 | ||
5355 | fsym = formal->sym; | |
eeebe20b | 5356 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5357 | |
5358 | gcc_assert (cl); | |
5359 | gcc_assert (cl->passed_length != NULL_TREE); | |
5360 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5361 | ||
5362 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5363 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5364 | that the actual string length is *at least* the expected one. |
5365 | Sequence association allows for a mismatch of the string length | |
5366 | if the actual argument is (part of) an array, but only if the | |
5367 | dummy argument is an array. (See "Sequence association" in | |
5368 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5369 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5370 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5371 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5372 | { |
5373 | comparison = NE_EXPR; | |
5374 | message = _("Actual string length does not match the declared one" | |
5375 | " for dummy argument '%s' (%ld/%ld)"); | |
5376 | } | |
be4be771 | 5377 | else if (fsym->as && fsym->as->rank != 0) |
5378 | continue; | |
a4abf8a0 | 5379 | else |
5380 | { | |
5381 | comparison = LT_EXPR; | |
5382 | message = _("Actual string length is shorter than the declared one" | |
5383 | " for dummy argument '%s' (%ld/%ld)"); | |
5384 | } | |
5385 | ||
5386 | /* Build the condition. For optional arguments, an actual length | |
5387 | of 0 is also acceptable if the associated string is NULL, which | |
5388 | means the argument was not passed. */ | |
fd779e1d | 5389 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
5390 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 5391 | if (fsym->attr.optional) |
5392 | { | |
5393 | tree not_absent; | |
5394 | tree not_0length; | |
5395 | tree absent_failed; | |
5396 | ||
fd779e1d | 5397 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
5398 | boolean_type_node, | |
5399 | cl->passed_length, | |
385f3f36 | 5400 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5401 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5402 | fsym->attr.referenced = 1; | |
5403 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5404 | |
fd779e1d | 5405 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
5406 | boolean_type_node, not_0length, | |
5407 | not_absent); | |
a4abf8a0 | 5408 | |
fd779e1d | 5409 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
5410 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 5411 | } |
5412 | ||
5413 | /* Build the runtime check. */ | |
5414 | argname = gfc_build_cstring_const (fsym->name); | |
5415 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5416 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5417 | message, argname, | |
5418 | fold_convert (long_integer_type_node, | |
5419 | cl->passed_length), | |
5420 | fold_convert (long_integer_type_node, | |
5421 | cl->backend_decl)); | |
5422 | } | |
5423 | } | |
5424 | ||
5425 | ||
7257a5d2 | 5426 | static void |
5427 | create_main_function (tree fndecl) | |
5428 | { | |
43702da6 | 5429 | tree old_context; |
7257a5d2 | 5430 | tree ftn_main; |
5431 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5432 | stmtblock_t body; | |
5433 | ||
43702da6 | 5434 | old_context = current_function_decl; |
5435 | ||
5436 | if (old_context) | |
5437 | { | |
5438 | push_function_context (); | |
5439 | saved_parent_function_decls = saved_function_decls; | |
5440 | saved_function_decls = NULL_TREE; | |
5441 | } | |
5442 | ||
7257a5d2 | 5443 | /* main() function must be declared with global scope. */ |
5444 | gcc_assert (current_function_decl == NULL_TREE); | |
5445 | ||
5446 | /* Declare the function. */ | |
5447 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5448 | build_pointer_type (pchar_type_node), | |
5449 | NULL_TREE); | |
0509d0ee | 5450 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5451 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5452 | main_identifier_node, tmp); | |
7257a5d2 | 5453 | DECL_EXTERNAL (ftn_main) = 0; |
5454 | TREE_PUBLIC (ftn_main) = 1; | |
5455 | TREE_STATIC (ftn_main) = 1; | |
5456 | DECL_ATTRIBUTES (ftn_main) | |
5457 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5458 | ||
5459 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5460 | result_decl = build_decl (input_location, |
5461 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5462 | DECL_ARTIFICIAL (result_decl) = 1; |
5463 | DECL_IGNORED_P (result_decl) = 1; | |
5464 | DECL_CONTEXT (result_decl) = ftn_main; | |
5465 | DECL_RESULT (ftn_main) = result_decl; | |
5466 | ||
5467 | pushdecl (ftn_main); | |
5468 | ||
5469 | /* Get the arguments. */ | |
5470 | ||
5471 | arglist = NULL_TREE; | |
5472 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5473 | ||
5474 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5475 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5476 | DECL_CONTEXT (argc) = ftn_main; |
5477 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5478 | TREE_READONLY (argc) = 1; | |
5479 | gfc_finish_decl (argc); | |
5480 | arglist = chainon (arglist, argc); | |
5481 | ||
5482 | typelist = TREE_CHAIN (typelist); | |
5483 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5484 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5485 | DECL_CONTEXT (argv) = ftn_main; |
5486 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5487 | TREE_READONLY (argv) = 1; | |
5488 | DECL_BY_REFERENCE (argv) = 1; | |
5489 | gfc_finish_decl (argv); | |
5490 | arglist = chainon (arglist, argv); | |
5491 | ||
5492 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5493 | current_function_decl = ftn_main; | |
5494 | announce_function (ftn_main); | |
5495 | ||
5496 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5497 | make_decl_rtl (ftn_main); | |
00cf115c | 5498 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5499 | pushlevel (); |
7257a5d2 | 5500 | |
5501 | gfc_init_block (&body); | |
5502 | ||
293d72e0 | 5503 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5504 | |
d44f2f7c | 5505 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5506 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5507 | { |
5508 | tree pint_type, pppchar_type; | |
5509 | pint_type = build_pointer_type (integer_type_node); | |
5510 | pppchar_type | |
5511 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5512 | ||
d44f2f7c | 5513 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5514 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5515 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5516 | gfc_add_expr_to_block (&body, tmp); |
5517 | } | |
5518 | ||
7257a5d2 | 5519 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5520 | TREE_USED (argc) = 1; |
5521 | TREE_USED (argv) = 1; | |
389dd41b | 5522 | tmp = build_call_expr_loc (input_location, |
5523 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5524 | gfc_add_expr_to_block (&body, tmp); |
5525 | ||
5526 | /* Add a call to set_options to set up the runtime library Fortran | |
5527 | language standard parameters. */ | |
5528 | { | |
5529 | tree array_type, array, var; | |
f1f41a6c | 5530 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5531 | |
5532 | /* Passing a new option to the library requires four modifications: | |
5533 | + add it to the tree_cons list below | |
5534 | + change the array size in the call to build_array_type | |
5535 | + change the first argument to the library call | |
5536 | gfor_fndecl_set_options | |
5537 | + modify the library (runtime/compile_options.c)! */ | |
5538 | ||
06f13dc1 | 5539 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5540 | build_int_cst (integer_type_node, | |
5541 | gfc_option.warn_std)); | |
5542 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5543 | build_int_cst (integer_type_node, | |
5544 | gfc_option.allow_std)); | |
5545 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5546 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5547 | /* TODO: This is the old -fdump-core option, which is unused but |
5548 | passed due to ABI compatibility; remove when bumping the | |
5549 | library ABI. */ | |
06f13dc1 | 5550 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5551 | build_int_cst (integer_type_node, | |
b2130263 | 5552 | 0)); |
06f13dc1 | 5553 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5554 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 5555 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5556 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 5557 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5558 | build_int_cst (integer_type_node, | |
5559 | (gfc_option.rtcheck | |
5560 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5561 | /* TODO: This is the -frange-check option, which no longer affects |
5562 | library behavior; when bumping the library ABI this slot can be | |
5563 | reused for something else. As it is the last element in the | |
293d72e0 | 5564 | array, we can instead leave it out altogether. */ |
553e7cef | 5565 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5566 | build_int_cst (integer_type_node, 0)); | |
06f13dc1 | 5567 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5568 | build_int_cst (integer_type_node, | |
553e7cef | 5569 | gfc_option.fpe_summary)); |
7257a5d2 | 5570 | |
5571 | array_type = build_array_type (integer_type_node, | |
553e7cef | 5572 | build_index_type (size_int (8))); |
06f13dc1 | 5573 | array = build_constructor (array_type, v); |
7257a5d2 | 5574 | TREE_CONSTANT (array) = 1; |
5575 | TREE_STATIC (array) = 1; | |
5576 | ||
5577 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 5578 | var = build_decl (input_location, VAR_DECL, |
5579 | create_tmp_var_name ("options"), | |
5580 | array_type); | |
5581 | DECL_ARTIFICIAL (var) = 1; | |
5582 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 5583 | TREE_CONSTANT (var) = 1; |
5584 | TREE_STATIC (var) = 1; | |
5585 | TREE_READONLY (var) = 1; | |
5586 | DECL_INITIAL (var) = array; | |
bf77f8ee | 5587 | pushdecl (var); |
7257a5d2 | 5588 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
5589 | ||
389dd41b | 5590 | tmp = build_call_expr_loc (input_location, |
5591 | gfor_fndecl_set_options, 2, | |
553e7cef | 5592 | build_int_cst (integer_type_node, 9), var); |
7257a5d2 | 5593 | gfc_add_expr_to_block (&body, tmp); |
5594 | } | |
5595 | ||
5596 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5597 | the library will raise a FPE when needed. */ | |
5598 | if (gfc_option.fpe != 0) | |
5599 | { | |
389dd41b | 5600 | tmp = build_call_expr_loc (input_location, |
5601 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5602 | build_int_cst (integer_type_node, |
5603 | gfc_option.fpe)); | |
5604 | gfc_add_expr_to_block (&body, tmp); | |
5605 | } | |
5606 | ||
5607 | /* If this is the main program and an -fconvert option was provided, | |
5608 | add a call to set_convert. */ | |
5609 | ||
4fe73152 | 5610 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 5611 | { |
389dd41b | 5612 | tmp = build_call_expr_loc (input_location, |
5613 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 5614 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 5615 | gfc_add_expr_to_block (&body, tmp); |
5616 | } | |
5617 | ||
5618 | /* If this is the main program and an -frecord-marker option was provided, | |
5619 | add a call to set_record_marker. */ | |
5620 | ||
eb106faf | 5621 | if (flag_record_marker != 0) |
7257a5d2 | 5622 | { |
389dd41b | 5623 | tmp = build_call_expr_loc (input_location, |
5624 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5625 | build_int_cst (integer_type_node, |
eb106faf | 5626 | flag_record_marker)); |
7257a5d2 | 5627 | gfc_add_expr_to_block (&body, tmp); |
5628 | } | |
5629 | ||
eb106faf | 5630 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 5631 | { |
389dd41b | 5632 | tmp = build_call_expr_loc (input_location, |
5633 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5634 | build_int_cst (integer_type_node, |
eb106faf | 5635 | flag_max_subrecord_length)); |
7257a5d2 | 5636 | gfc_add_expr_to_block (&body, tmp); |
5637 | } | |
5638 | ||
5639 | /* Call MAIN__(). */ | |
389dd41b | 5640 | tmp = build_call_expr_loc (input_location, |
5641 | fndecl, 0); | |
7257a5d2 | 5642 | gfc_add_expr_to_block (&body, tmp); |
5643 | ||
43702da6 | 5644 | /* Mark MAIN__ as used. */ |
5645 | TREE_USED (fndecl) = 1; | |
5646 | ||
70b5944a | 5647 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 5648 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 5649 | { |
70b5944a | 5650 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
5651 | gfc_add_expr_to_block (&body, tmp); | |
5652 | } | |
5653 | ||
7257a5d2 | 5654 | /* "return 0". */ |
fd779e1d | 5655 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5656 | DECL_RESULT (ftn_main), | |
5657 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5658 | tmp = build1_v (RETURN_EXPR, tmp); |
5659 | gfc_add_expr_to_block (&body, tmp); | |
5660 | ||
5661 | ||
5662 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5663 | decl = getdecls (); | |
5664 | ||
5665 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5666 | poplevel (1, 1); |
7257a5d2 | 5667 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5668 | ||
5669 | DECL_SAVED_TREE (ftn_main) | |
5670 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5671 | DECL_INITIAL (ftn_main)); | |
5672 | ||
5673 | /* Output the GENERIC tree. */ | |
5674 | dump_function (TDI_original, ftn_main); | |
5675 | ||
35ee1c66 | 5676 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 5677 | |
5678 | if (old_context) | |
5679 | { | |
5680 | pop_function_context (); | |
5681 | saved_function_decls = saved_parent_function_decls; | |
5682 | } | |
5683 | current_function_decl = old_context; | |
7257a5d2 | 5684 | } |
5685 | ||
5686 | ||
89ac8ba1 | 5687 | /* Get the result expression for a procedure. */ |
5688 | ||
5689 | static tree | |
5690 | get_proc_result (gfc_symbol* sym) | |
5691 | { | |
5692 | if (sym->attr.subroutine || sym == sym->result) | |
5693 | { | |
5694 | if (current_fake_result_decl != NULL) | |
5695 | return TREE_VALUE (current_fake_result_decl); | |
5696 | ||
5697 | return NULL_TREE; | |
5698 | } | |
5699 | ||
5700 | return sym->result->backend_decl; | |
5701 | } | |
5702 | ||
5703 | ||
5704 | /* Generate an appropriate return-statement for a procedure. */ | |
5705 | ||
5706 | tree | |
5707 | gfc_generate_return (void) | |
5708 | { | |
5709 | gfc_symbol* sym; | |
5710 | tree result; | |
5711 | tree fndecl; | |
5712 | ||
5713 | sym = current_procedure_symbol; | |
5714 | fndecl = sym->backend_decl; | |
5715 | ||
5716 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5717 | result = NULL_TREE; | |
5718 | else | |
5719 | { | |
5720 | result = get_proc_result (sym); | |
5721 | ||
5722 | /* Set the return value to the dummy result variable. The | |
5723 | types may be different for scalar default REAL functions | |
5724 | with -ff2c, therefore we have to convert. */ | |
5725 | if (result != NULL_TREE) | |
5726 | { | |
5727 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5728 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5729 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5730 | result); | |
89ac8ba1 | 5731 | } |
5732 | } | |
5733 | ||
5734 | return build1_v (RETURN_EXPR, result); | |
5735 | } | |
5736 | ||
5737 | ||
d566c3e0 | 5738 | static void |
5739 | is_from_ieee_module (gfc_symbol *sym) | |
5740 | { | |
5741 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
5742 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
5743 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
5744 | seen_ieee_symbol = 1; | |
5745 | } | |
5746 | ||
5747 | ||
5748 | static int | |
5749 | is_ieee_module_used (gfc_namespace *ns) | |
5750 | { | |
5751 | seen_ieee_symbol = 0; | |
5752 | gfc_traverse_ns (ns, is_from_ieee_module); | |
5753 | return seen_ieee_symbol; | |
5754 | } | |
5755 | ||
5756 | ||
4ee9c684 | 5757 | /* Generate code for a function. */ |
5758 | ||
5759 | void | |
5760 | gfc_generate_function_code (gfc_namespace * ns) | |
5761 | { | |
5762 | tree fndecl; | |
5763 | tree old_context; | |
5764 | tree decl; | |
5765 | tree tmp; | |
d566c3e0 | 5766 | tree fpstate = NULL_TREE; |
89ac8ba1 | 5767 | stmtblock_t init, cleanup; |
4ee9c684 | 5768 | stmtblock_t body; |
89ac8ba1 | 5769 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5770 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5771 | gfc_symbol *sym; |
89ac8ba1 | 5772 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 5773 | int rank, ieee; |
e50e62f5 | 5774 | bool is_recursive; |
4ee9c684 | 5775 | |
5776 | sym = ns->proc_name; | |
89ac8ba1 | 5777 | previous_procedure_symbol = current_procedure_symbol; |
5778 | current_procedure_symbol = sym; | |
1b716045 | 5779 | |
4ee9c684 | 5780 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5781 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5782 | sym->tlink = sym; |
5783 | ||
5784 | /* Create the declaration for functions with global scope. */ | |
5785 | if (!sym->backend_decl) | |
d896f9b3 | 5786 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5787 | |
5788 | fndecl = sym->backend_decl; | |
5789 | old_context = current_function_decl; | |
5790 | ||
5791 | if (old_context) | |
5792 | { | |
5793 | push_function_context (); | |
5794 | saved_parent_function_decls = saved_function_decls; | |
5795 | saved_function_decls = NULL_TREE; | |
5796 | } | |
5797 | ||
1b716045 | 5798 | trans_function_start (sym); |
4ee9c684 | 5799 | |
89ac8ba1 | 5800 | gfc_init_block (&init); |
4ee9c684 | 5801 | |
c6871095 | 5802 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
5803 | { | |
5804 | /* Copy length backend_decls to all entry point result | |
5805 | symbols. */ | |
5806 | gfc_entry_list *el; | |
5807 | tree backend_decl; | |
5808 | ||
eeebe20b | 5809 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
5810 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 5811 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 5812 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 5813 | } |
5814 | ||
4ee9c684 | 5815 | /* Translate COMMON blocks. */ |
5816 | gfc_trans_common (ns); | |
5817 | ||
c750cc52 | 5818 | /* Null the parent fake result declaration if this namespace is |
5819 | a module function or an external procedures. */ | |
5820 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5821 | || ns->parent == NULL) | |
5822 | parent_fake_result_decl = NULL_TREE; | |
5823 | ||
2b685f8e | 5824 | gfc_generate_contained_functions (ns); |
5825 | ||
9579733e | 5826 | nonlocal_dummy_decls = NULL; |
5827 | nonlocal_dummy_decl_pset = NULL; | |
5828 | ||
a961ca30 | 5829 | has_coarray_vars = false; |
4ee9c684 | 5830 | generate_local_vars (ns); |
5b11d932 | 5831 | |
4fe73152 | 5832 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5833 | generate_coarray_init (ns); |
5834 | ||
c750cc52 | 5835 | /* Keep the parent fake result declaration in module functions |
5836 | or external procedures. */ | |
5837 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5838 | || ns->parent == NULL) | |
5839 | current_fake_result_decl = parent_fake_result_decl; | |
5840 | else | |
5841 | current_fake_result_decl = NULL_TREE; | |
5842 | ||
89ac8ba1 | 5843 | is_recursive = sym->attr.recursive |
5844 | || (sym->attr.entry_master | |
5845 | && sym->ns->entries->sym->attr.recursive); | |
5846 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 5847 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 5848 | { |
5849 | char * msg; | |
5850 | ||
87fda26c | 5851 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
5852 | sym->name); | |
89ac8ba1 | 5853 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); |
5854 | TREE_STATIC (recurcheckvar) = 1; | |
5855 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
5856 | gfc_add_expr_to_block (&init, recurcheckvar); | |
5857 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
5858 | &sym->declared_at, msg); | |
5859 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 5860 | free (msg); |
89ac8ba1 | 5861 | } |
4ee9c684 | 5862 | |
d566c3e0 | 5863 | /* Check if an IEEE module is used in the procedure. If so, save |
5864 | the floating point state. */ | |
5865 | ieee = is_ieee_module_used (ns); | |
5866 | if (ieee) | |
d7333535 | 5867 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 5868 | |
4ee9c684 | 5869 | /* Now generate the code for the body of this function. */ |
5870 | gfc_init_block (&body); | |
5871 | ||
5872 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 5873 | && sym->attr.subroutine) |
4ee9c684 | 5874 | { |
5875 | tree alternate_return; | |
c750cc52 | 5876 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 5877 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 5878 | } |
5879 | ||
1b716045 | 5880 | if (ns->entries) |
5881 | { | |
5882 | /* Jump to the correct entry point. */ | |
5883 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
5884 | gfc_add_expr_to_block (&body, tmp); | |
5885 | } | |
5886 | ||
a4abf8a0 | 5887 | /* If bounds-checking is enabled, generate code to check passed in actual |
5888 | arguments against the expected dummy argument attributes (e.g. string | |
5889 | lengths). */ | |
c1630d65 | 5890 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 5891 | add_argument_checking (&body, sym); |
5892 | ||
ca4c3545 | 5893 | /* Generate !$ACC DECLARE directive. */ |
5894 | if (ns->oacc_declare_clauses) | |
5895 | { | |
5896 | tree tmp = gfc_trans_oacc_declare (&body, ns); | |
5897 | gfc_add_expr_to_block (&body, tmp); | |
5898 | } | |
5899 | ||
4ee9c684 | 5900 | tmp = gfc_trans_code (ns->code); |
5901 | gfc_add_expr_to_block (&body, tmp); | |
5902 | ||
1caa6ab1 | 5903 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
5904 | || (sym->result && sym->result != sym | |
5905 | && sym->result->ts.type == BT_DERIVED | |
5906 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 5907 | { |
1caa6ab1 | 5908 | bool artificial_result_decl = false; |
89ac8ba1 | 5909 | tree result = get_proc_result (sym); |
1caa6ab1 | 5910 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
5911 | ||
5912 | /* Make sure that a function returning an object with | |
5913 | alloc/pointer_components always has a result, where at least | |
5914 | the allocatable/pointer components are set to zero. */ | |
5915 | if (result == NULL_TREE && sym->attr.function | |
5916 | && ((sym->result->ts.type == BT_DERIVED | |
5917 | && (sym->attr.allocatable | |
5918 | || sym->attr.pointer | |
5919 | || sym->result->ts.u.derived->attr.alloc_comp | |
5920 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
5921 | || (sym->result->ts.type == BT_CLASS | |
5922 | && (CLASS_DATA (sym)->attr.allocatable | |
5923 | || CLASS_DATA (sym)->attr.class_pointer | |
5924 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
5925 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
5926 | { | |
5927 | artificial_result_decl = true; | |
5928 | result = gfc_get_fake_result_decl (sym, 0); | |
5929 | } | |
4ee9c684 | 5930 | |
42766cb3 | 5931 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 5932 | { |
deb7edfc | 5933 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
5934 | && sym->result == sym) | |
5935 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
5936 | null_pointer_node)); | |
42766cb3 | 5937 | else if (sym->ts.type == BT_CLASS |
5938 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 5939 | && CLASS_DATA (sym)->attr.dimension == 0 |
5940 | && sym->result == sym) | |
42766cb3 | 5941 | { |
5942 | tmp = CLASS_DATA (sym)->backend_decl; | |
5943 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
5944 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
5945 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
5946 | null_pointer_node)); | |
5947 | } | |
deb7edfc | 5948 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 5949 | && !sym->attr.allocatable) |
53169279 | 5950 | { |
1caa6ab1 | 5951 | gfc_expr *init_exp; |
5952 | /* Arrays are not initialized using the default initializer of | |
5953 | their elements. Therefore only check if a default | |
5954 | initializer is available when the result is scalar. */ | |
5955 | init_exp = rsym->as ? NULL : gfc_default_initializer (&rsym->ts); | |
5956 | if (init_exp) | |
5957 | { | |
5958 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
5959 | gfc_free_expr (init_exp); | |
5960 | gfc_add_expr_to_block (&init, tmp); | |
5961 | } | |
5962 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
5963 | { | |
5964 | rank = rsym->as ? rsym->as->rank : 0; | |
5965 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
5966 | rank); | |
5967 | gfc_prepend_expr_to_block (&body, tmp); | |
5968 | } | |
53169279 | 5969 | } |
5176859a | 5970 | } |
e50e62f5 | 5971 | |
1caa6ab1 | 5972 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 5973 | { |
5974 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 5975 | if (warn_return_type && sym == sym->result) |
4166acc7 | 5976 | gfc_warning (OPT_Wreturn_type, |
5977 | "Return value of function %qs at %L not set", | |
fa7b6574 | 5978 | sym->name, &sym->declared_at); |
90a4a5a6 | 5979 | if (warn_return_type) |
5980 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 5981 | } |
1caa6ab1 | 5982 | if (result != NULL_TREE) |
89ac8ba1 | 5983 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 5984 | } |
89ac8ba1 | 5985 | |
5986 | gfc_init_block (&cleanup); | |
5987 | ||
5988 | /* Reset recursion-check variable. */ | |
5989 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 5990 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 5991 | { |
89ac8ba1 | 5992 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
5993 | recurcheckvar = NULL; | |
e50e62f5 | 5994 | } |
2294b616 | 5995 | |
d566c3e0 | 5996 | /* If IEEE modules are loaded, restore the floating-point state. */ |
5997 | if (ieee) | |
d7333535 | 5998 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 5999 | |
89ac8ba1 | 6000 | /* Finish the function body and add init and cleanup code. */ |
6001 | tmp = gfc_finish_block (&body); | |
6002 | gfc_start_wrapped_block (&try_block, tmp); | |
6003 | /* Add code to create and cleanup arrays. */ | |
6004 | gfc_trans_deferred_vars (sym, &try_block); | |
6005 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6006 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6007 | |
6008 | /* Add all the decls we created during processing. */ | |
6009 | decl = saved_function_decls; | |
6010 | while (decl) | |
6011 | { | |
6012 | tree next; | |
6013 | ||
1767a056 | 6014 | next = DECL_CHAIN (decl); |
6015 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6016 | pushdecl (decl); |
4ee9c684 | 6017 | decl = next; |
6018 | } | |
6019 | saved_function_decls = NULL_TREE; | |
6020 | ||
89ac8ba1 | 6021 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6022 | decl = getdecls (); |
4ee9c684 | 6023 | |
6024 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6025 | poplevel (1, 1); |
4ee9c684 | 6026 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6027 | ||
e5004242 | 6028 | DECL_SAVED_TREE (fndecl) |
6029 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6030 | DECL_INITIAL (fndecl)); | |
6031 | ||
9579733e | 6032 | if (nonlocal_dummy_decls) |
6033 | { | |
6034 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6035 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
431205b7 | 6036 | delete nonlocal_dummy_decl_pset; |
9579733e | 6037 | nonlocal_dummy_decls = NULL; |
6038 | nonlocal_dummy_decl_pset = NULL; | |
6039 | } | |
6040 | ||
4ee9c684 | 6041 | /* Output the GENERIC tree. */ |
6042 | dump_function (TDI_original, fndecl); | |
6043 | ||
6044 | /* Store the end of the function, so that we get good line number | |
6045 | info for the epilogue. */ | |
6046 | cfun->function_end_locus = input_location; | |
6047 | ||
6048 | /* We're leaving the context of this function, so zap cfun. | |
6049 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6050 | tree_rest_of_compilation. */ | |
87d4aa85 | 6051 | set_cfun (NULL); |
4ee9c684 | 6052 | |
6053 | if (old_context) | |
6054 | { | |
6055 | pop_function_context (); | |
6056 | saved_function_decls = saved_parent_function_decls; | |
6057 | } | |
6058 | current_function_decl = old_context; | |
6059 | ||
1f7747bd | 6060 | if (decl_function_context (fndecl)) |
6061 | { | |
6062 | /* Register this function with cgraph just far enough to get it | |
6063 | added to our parent's nested function list. | |
6064 | If there are static coarrays in this function, the nested _caf_init | |
6065 | function has already called cgraph_create_node, which also created | |
6066 | the cgraph node for this function. */ | |
4fe73152 | 6067 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
415d1b9a | 6068 | (void) cgraph_node::create (fndecl); |
1f7747bd | 6069 | } |
4ee9c684 | 6070 | else |
35ee1c66 | 6071 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6072 | |
6073 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6074 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6075 | |
6076 | if (sym->attr.is_main_program) | |
6077 | create_main_function (fndecl); | |
89ac8ba1 | 6078 | |
6079 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6080 | } |
6081 | ||
7257a5d2 | 6082 | |
4ee9c684 | 6083 | void |
6084 | gfc_generate_constructors (void) | |
6085 | { | |
22d678e8 | 6086 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6087 | #if 0 |
6088 | tree fnname; | |
6089 | tree type; | |
6090 | tree fndecl; | |
6091 | tree decl; | |
6092 | tree tmp; | |
6093 | ||
6094 | if (gfc_static_ctors == NULL_TREE) | |
6095 | return; | |
6096 | ||
db85cc4f | 6097 | fnname = get_file_function_name ("I"); |
e1036019 | 6098 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6099 | |
e60a6f7b | 6100 | fndecl = build_decl (input_location, |
6101 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6102 | TREE_PUBLIC (fndecl) = 1; |
6103 | ||
e60a6f7b | 6104 | decl = build_decl (input_location, |
6105 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6106 | DECL_ARTIFICIAL (decl) = 1; |
6107 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6108 | DECL_CONTEXT (decl) = fndecl; |
6109 | DECL_RESULT (fndecl) = decl; | |
6110 | ||
6111 | pushdecl (fndecl); | |
6112 | ||
6113 | current_function_decl = fndecl; | |
6114 | ||
b2c4af5e | 6115 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6116 | |
b2c4af5e | 6117 | make_decl_rtl (fndecl); |
4ee9c684 | 6118 | |
00cf115c | 6119 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6120 | |
cde2be84 | 6121 | pushlevel (); |
4ee9c684 | 6122 | |
6123 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6124 | { | |
389dd41b | 6125 | tmp = build_call_expr_loc (input_location, |
6126 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6127 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6128 | } |
6129 | ||
e5004242 | 6130 | decl = getdecls (); |
cde2be84 | 6131 | poplevel (1, 1); |
4ee9c684 | 6132 | |
6133 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6134 | DECL_SAVED_TREE (fndecl) |
6135 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6136 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6137 | |
6138 | free_after_parsing (cfun); | |
6139 | free_after_compilation (cfun); | |
6140 | ||
6148a911 | 6141 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6142 | |
6143 | current_function_decl = NULL_TREE; | |
6144 | #endif | |
6145 | } | |
6146 | ||
9ec7c303 | 6147 | /* Translates a BLOCK DATA program unit. This means emitting the |
6148 | commons contained therein plus their initializations. We also emit | |
6149 | a globally visible symbol to make sure that each BLOCK DATA program | |
6150 | unit remains unique. */ | |
6151 | ||
6152 | void | |
6153 | gfc_generate_block_data (gfc_namespace * ns) | |
6154 | { | |
6155 | tree decl; | |
6156 | tree id; | |
6157 | ||
b31f705b | 6158 | /* Tell the backend the source location of the block data. */ |
6159 | if (ns->proc_name) | |
6160 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6161 | else | |
6162 | gfc_set_backend_locus (&gfc_current_locus); | |
6163 | ||
6164 | /* Process the DATA statements. */ | |
9ec7c303 | 6165 | gfc_trans_common (ns); |
6166 | ||
b31f705b | 6167 | /* Create a global symbol with the mane of the block data. This is to |
6168 | generate linker errors if the same name is used twice. It is never | |
6169 | really used. */ | |
9ec7c303 | 6170 | if (ns->proc_name) |
6171 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6172 | else | |
6173 | id = get_identifier ("__BLOCK_DATA__"); | |
6174 | ||
e60a6f7b | 6175 | decl = build_decl (input_location, |
6176 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6177 | TREE_PUBLIC (decl) = 1; |
6178 | TREE_STATIC (decl) = 1; | |
df4d540f | 6179 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6180 | |
6181 | pushdecl (decl); | |
6182 | rest_of_decl_compilation (decl, 1, 0); | |
6183 | } | |
6184 | ||
b549d2a5 | 6185 | |
6a7084d7 | 6186 | /* Process the local variables of a BLOCK construct. */ |
6187 | ||
6188 | void | |
3c82e013 | 6189 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6190 | { |
6191 | tree decl; | |
6192 | ||
6193 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 6194 | has_coarray_vars = false; |
6195 | ||
6a7084d7 | 6196 | generate_local_vars (ns); |
6197 | ||
4fe73152 | 6198 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6199 | generate_coarray_init (ns); |
6200 | ||
6a7084d7 | 6201 | decl = saved_local_decls; |
6202 | while (decl) | |
6203 | { | |
6204 | tree next; | |
6205 | ||
1767a056 | 6206 | next = DECL_CHAIN (decl); |
6207 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6208 | pushdecl (decl); |
6209 | decl = next; | |
6210 | } | |
6211 | saved_local_decls = NULL_TREE; | |
6212 | } | |
6213 | ||
6214 | ||
4ee9c684 | 6215 | #include "gt-fortran-trans-decl.h" |