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Commit | Line | Data |
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6de9cd9a | 1 | /* Backend function setup |
85ec4feb | 2 | Copyright (C) 2002-2018 Free Software Foundation, Inc. |
6de9cd9a DN |
3 | Contributed by Paul Brook |
4 | ||
9fc4d79b | 5 | This file is part of GCC. |
6de9cd9a | 6 | |
9fc4d79b TS |
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 | |
d234d788 | 9 | Software Foundation; either version 3, or (at your option) any later |
9fc4d79b | 10 | version. |
6de9cd9a | 11 | |
9fc4d79b TS |
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. | |
6de9cd9a DN |
16 | |
17 | You should have received a copy of the GNU General Public License | |
d234d788 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
6de9cd9a DN |
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" | |
2adfab87 AM |
26 | #include "target.h" |
27 | #include "function.h" | |
28 | #include "tree.h" | |
8e54f6d3 | 29 | #include "gfortran.h" |
2adfab87 AM |
30 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
31 | #include "trans.h" | |
32 | #include "stringpool.h" | |
33 | #include "cgraph.h" | |
40e23961 | 34 | #include "fold-const.h" |
d8a2d370 DN |
35 | #include "stor-layout.h" |
36 | #include "varasm.h" | |
37 | #include "attribs.h" | |
c24e924f | 38 | #include "dumpfile.h" |
c829d016 | 39 | #include "toplev.h" /* For announce_function. */ |
a64f5186 | 40 | #include "debug.h" |
b7e75771 | 41 | #include "constructor.h" |
6de9cd9a DN |
42 | #include "trans-types.h" |
43 | #include "trans-array.h" | |
44 | #include "trans-const.h" | |
45 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
46 | #include "trans-stmt.h" | |
db941d7e | 47 | #include "gomp-constants.h" |
7a27d38f | 48 | #include "gimplify.h" |
6de9cd9a DN |
49 | |
50 | #define MAX_LABEL_VALUE 99999 | |
51 | ||
52 | ||
53 | /* Holds the result of the function if no result variable specified. */ | |
54 | ||
55 | static GTY(()) tree current_fake_result_decl; | |
5f20c93a | 56 | static GTY(()) tree parent_fake_result_decl; |
6de9cd9a | 57 | |
6de9cd9a DN |
58 | |
59 | /* Holds the variable DECLs for the current function. */ | |
60 | ||
417ab240 JJ |
61 | static GTY(()) tree saved_function_decls; |
62 | static GTY(()) tree saved_parent_function_decls; | |
6de9cd9a | 63 | |
6e2830c3 | 64 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
77f2a970 | 65 | static GTY(()) tree nonlocal_dummy_decls; |
6de9cd9a | 66 | |
9abe5e56 DK |
67 | /* Holds the variable DECLs that are locals. */ |
68 | ||
69 | static GTY(()) tree saved_local_decls; | |
70 | ||
6de9cd9a DN |
71 | /* The namespace of the module we're currently generating. Only used while |
72 | outputting decls for module variables. Do not rely on this being set. */ | |
73 | ||
74 | static gfc_namespace *module_namespace; | |
75 | ||
d74d8807 DK |
76 | /* The currently processed procedure symbol. */ |
77 | static gfc_symbol* current_procedure_symbol = NULL; | |
78 | ||
de1184c0 TB |
79 | /* The currently processed module. */ |
80 | static struct module_htab_entry *cur_module; | |
6de9cd9a | 81 | |
b8ff4e88 TB |
82 | /* With -fcoarray=lib: For generating the registering call |
83 | of static coarrays. */ | |
84 | static bool has_coarray_vars; | |
85 | static stmtblock_t caf_init_block; | |
86 | ||
87 | ||
6de9cd9a DN |
88 | /* List of static constructor functions. */ |
89 | ||
90 | tree gfc_static_ctors; | |
91 | ||
92 | ||
8b198102 FXC |
93 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
94 | static int seen_ieee_symbol; | |
95 | ||
6de9cd9a DN |
96 | /* Function declarations for builtin library functions. */ |
97 | ||
6de9cd9a DN |
98 | tree gfor_fndecl_pause_numeric; |
99 | tree gfor_fndecl_pause_string; | |
100 | tree gfor_fndecl_stop_numeric; | |
101 | tree gfor_fndecl_stop_string; | |
6d1b0f92 | 102 | tree gfor_fndecl_error_stop_numeric; |
d0a4a61c | 103 | tree gfor_fndecl_error_stop_string; |
6de9cd9a | 104 | tree gfor_fndecl_runtime_error; |
f96d606f | 105 | tree gfor_fndecl_runtime_error_at; |
0d52899f | 106 | tree gfor_fndecl_runtime_warning_at; |
1529b8d9 | 107 | tree gfor_fndecl_os_error; |
f96d606f | 108 | tree gfor_fndecl_generate_error; |
092231a8 | 109 | tree gfor_fndecl_set_args; |
944b8b35 | 110 | tree gfor_fndecl_set_fpe; |
68d2e027 | 111 | tree gfor_fndecl_set_options; |
eaa90d25 | 112 | tree gfor_fndecl_set_convert; |
d67ab5ee | 113 | tree gfor_fndecl_set_record_marker; |
07b3bbf2 | 114 | tree gfor_fndecl_set_max_subrecord_length; |
35059811 FXC |
115 | tree gfor_fndecl_ctime; |
116 | tree gfor_fndecl_fdate; | |
25fc05eb | 117 | tree gfor_fndecl_ttynam; |
6de9cd9a DN |
118 | tree gfor_fndecl_in_pack; |
119 | tree gfor_fndecl_in_unpack; | |
120 | tree gfor_fndecl_associated; | |
a416c4c7 FXC |
121 | tree gfor_fndecl_system_clock4; |
122 | tree gfor_fndecl_system_clock8; | |
8b198102 FXC |
123 | tree gfor_fndecl_ieee_procedure_entry; |
124 | tree gfor_fndecl_ieee_procedure_exit; | |
6de9cd9a DN |
125 | |
126 | ||
60386f50 TB |
127 | /* Coarray run-time library function decls. */ |
128 | tree gfor_fndecl_caf_init; | |
129 | tree gfor_fndecl_caf_finalize; | |
a8a5f4a9 TB |
130 | tree gfor_fndecl_caf_this_image; |
131 | tree gfor_fndecl_caf_num_images; | |
b8ff4e88 | 132 | tree gfor_fndecl_caf_register; |
5d81ddd0 | 133 | tree gfor_fndecl_caf_deregister; |
b5116268 TB |
134 | tree gfor_fndecl_caf_get; |
135 | tree gfor_fndecl_caf_send; | |
136 | tree gfor_fndecl_caf_sendget; | |
3c9f5092 AV |
137 | tree gfor_fndecl_caf_get_by_ref; |
138 | tree gfor_fndecl_caf_send_by_ref; | |
139 | tree gfor_fndecl_caf_sendget_by_ref; | |
60386f50 | 140 | tree gfor_fndecl_caf_sync_all; |
9315dff0 | 141 | tree gfor_fndecl_caf_sync_memory; |
60386f50 | 142 | tree gfor_fndecl_caf_sync_images; |
0daa7ed9 AF |
143 | tree gfor_fndecl_caf_stop_str; |
144 | tree gfor_fndecl_caf_stop_numeric; | |
60386f50 TB |
145 | tree gfor_fndecl_caf_error_stop; |
146 | tree gfor_fndecl_caf_error_stop_str; | |
42a8246d TB |
147 | tree gfor_fndecl_caf_atomic_def; |
148 | tree gfor_fndecl_caf_atomic_ref; | |
149 | tree gfor_fndecl_caf_atomic_cas; | |
150 | tree gfor_fndecl_caf_atomic_op; | |
bc0229f9 TB |
151 | tree gfor_fndecl_caf_lock; |
152 | tree gfor_fndecl_caf_unlock; | |
5df445a2 TB |
153 | tree gfor_fndecl_caf_event_post; |
154 | tree gfor_fndecl_caf_event_wait; | |
155 | tree gfor_fndecl_caf_event_query; | |
ef78bc3c AV |
156 | tree gfor_fndecl_caf_fail_image; |
157 | tree gfor_fndecl_caf_failed_images; | |
158 | tree gfor_fndecl_caf_image_status; | |
159 | tree gfor_fndecl_caf_stopped_images; | |
a16ee379 | 160 | tree gfor_fndecl_co_broadcast; |
d62cf3df TB |
161 | tree gfor_fndecl_co_max; |
162 | tree gfor_fndecl_co_min; | |
229c5919 | 163 | tree gfor_fndecl_co_reduce; |
d62cf3df | 164 | tree gfor_fndecl_co_sum; |
ba85c8c3 | 165 | tree gfor_fndecl_caf_is_present; |
60386f50 | 166 | |
60386f50 | 167 | |
6de9cd9a DN |
168 | /* Math functions. Many other math functions are handled in |
169 | trans-intrinsic.c. */ | |
170 | ||
644cb69f | 171 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
6de9cd9a DN |
172 | tree gfor_fndecl_math_ishftc4; |
173 | tree gfor_fndecl_math_ishftc8; | |
644cb69f | 174 | tree gfor_fndecl_math_ishftc16; |
6de9cd9a DN |
175 | |
176 | ||
177 | /* String functions. */ | |
178 | ||
6de9cd9a DN |
179 | tree gfor_fndecl_compare_string; |
180 | tree gfor_fndecl_concat_string; | |
181 | tree gfor_fndecl_string_len_trim; | |
182 | tree gfor_fndecl_string_index; | |
183 | tree gfor_fndecl_string_scan; | |
184 | tree gfor_fndecl_string_verify; | |
185 | tree gfor_fndecl_string_trim; | |
2263c775 | 186 | tree gfor_fndecl_string_minmax; |
6de9cd9a DN |
187 | tree gfor_fndecl_adjustl; |
188 | tree gfor_fndecl_adjustr; | |
d393bbd7 | 189 | tree gfor_fndecl_select_string; |
374929b2 FXC |
190 | tree gfor_fndecl_compare_string_char4; |
191 | tree gfor_fndecl_concat_string_char4; | |
192 | tree gfor_fndecl_string_len_trim_char4; | |
193 | tree gfor_fndecl_string_index_char4; | |
194 | tree gfor_fndecl_string_scan_char4; | |
195 | tree gfor_fndecl_string_verify_char4; | |
196 | tree gfor_fndecl_string_trim_char4; | |
197 | tree gfor_fndecl_string_minmax_char4; | |
198 | tree gfor_fndecl_adjustl_char4; | |
199 | tree gfor_fndecl_adjustr_char4; | |
d393bbd7 FXC |
200 | tree gfor_fndecl_select_string_char4; |
201 | ||
202 | ||
203 | /* Conversion between character kinds. */ | |
204 | tree gfor_fndecl_convert_char1_to_char4; | |
205 | tree gfor_fndecl_convert_char4_to_char1; | |
6de9cd9a DN |
206 | |
207 | ||
208 | /* Other misc. runtime library functions. */ | |
6de9cd9a DN |
209 | tree gfor_fndecl_size0; |
210 | tree gfor_fndecl_size1; | |
b41b2534 | 211 | tree gfor_fndecl_iargc; |
6de9cd9a | 212 | |
a39fafac FXC |
213 | /* Intrinsic functions implemented in Fortran. */ |
214 | tree gfor_fndecl_sc_kind; | |
6de9cd9a DN |
215 | tree gfor_fndecl_si_kind; |
216 | tree gfor_fndecl_sr_kind; | |
217 | ||
5a0aad31 FXC |
218 | /* BLAS gemm functions. */ |
219 | tree gfor_fndecl_sgemm; | |
220 | tree gfor_fndecl_dgemm; | |
221 | tree gfor_fndecl_cgemm; | |
222 | tree gfor_fndecl_zgemm; | |
223 | ||
6de9cd9a DN |
224 | |
225 | static void | |
226 | gfc_add_decl_to_parent_function (tree decl) | |
227 | { | |
6e45f57b | 228 | gcc_assert (decl); |
6de9cd9a DN |
229 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
230 | DECL_NONLOCAL (decl) = 1; | |
910ad8de | 231 | DECL_CHAIN (decl) = saved_parent_function_decls; |
6de9cd9a DN |
232 | saved_parent_function_decls = decl; |
233 | } | |
234 | ||
235 | void | |
236 | gfc_add_decl_to_function (tree decl) | |
237 | { | |
6e45f57b | 238 | gcc_assert (decl); |
6de9cd9a DN |
239 | TREE_USED (decl) = 1; |
240 | DECL_CONTEXT (decl) = current_function_decl; | |
910ad8de | 241 | DECL_CHAIN (decl) = saved_function_decls; |
6de9cd9a DN |
242 | saved_function_decls = decl; |
243 | } | |
244 | ||
9abe5e56 DK |
245 | static void |
246 | add_decl_as_local (tree decl) | |
247 | { | |
248 | gcc_assert (decl); | |
249 | TREE_USED (decl) = 1; | |
250 | DECL_CONTEXT (decl) = current_function_decl; | |
910ad8de | 251 | DECL_CHAIN (decl) = saved_local_decls; |
9abe5e56 DK |
252 | saved_local_decls = decl; |
253 | } | |
254 | ||
6de9cd9a | 255 | |
c006df4e SB |
256 | /* Build a backend label declaration. Set TREE_USED for named labels. |
257 | The context of the label is always the current_function_decl. All | |
258 | labels are marked artificial. */ | |
6de9cd9a DN |
259 | |
260 | tree | |
261 | gfc_build_label_decl (tree label_id) | |
262 | { | |
263 | /* 2^32 temporaries should be enough. */ | |
264 | static unsigned int tmp_num = 1; | |
265 | tree label_decl; | |
266 | char *label_name; | |
267 | ||
268 | if (label_id == NULL_TREE) | |
269 | { | |
270 | /* Build an internal label name. */ | |
271 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
272 | label_id = get_identifier (label_name); | |
273 | } | |
274 | else | |
275 | label_name = NULL; | |
276 | ||
277 | /* Build the LABEL_DECL node. Labels have no type. */ | |
c2255bc4 AH |
278 | label_decl = build_decl (input_location, |
279 | LABEL_DECL, label_id, void_type_node); | |
6de9cd9a | 280 | DECL_CONTEXT (label_decl) = current_function_decl; |
899ca90e | 281 | SET_DECL_MODE (label_decl, VOIDmode); |
6de9cd9a | 282 | |
c006df4e SB |
283 | /* We always define the label as used, even if the original source |
284 | file never references the label. We don't want all kinds of | |
285 | spurious warnings for old-style Fortran code with too many | |
286 | labels. */ | |
287 | TREE_USED (label_decl) = 1; | |
6de9cd9a | 288 | |
c006df4e | 289 | DECL_ARTIFICIAL (label_decl) = 1; |
6de9cd9a DN |
290 | return label_decl; |
291 | } | |
292 | ||
293 | ||
c8cc8542 PB |
294 | /* Set the backend source location of a decl. */ |
295 | ||
296 | void | |
297 | gfc_set_decl_location (tree decl, locus * loc) | |
298 | { | |
c8cc8542 | 299 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
c8cc8542 PB |
300 | } |
301 | ||
302 | ||
6de9cd9a DN |
303 | /* Return the backend label declaration for a given label structure, |
304 | or create it if it doesn't exist yet. */ | |
305 | ||
306 | tree | |
307 | gfc_get_label_decl (gfc_st_label * lp) | |
308 | { | |
6de9cd9a DN |
309 | if (lp->backend_decl) |
310 | return lp->backend_decl; | |
311 | else | |
312 | { | |
313 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
314 | tree label_decl; | |
315 | ||
316 | /* Validate the label declaration from the front end. */ | |
6e45f57b | 317 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
6de9cd9a DN |
318 | |
319 | /* Build a mangled name for the label. */ | |
320 | sprintf (label_name, "__label_%.6d", lp->value); | |
321 | ||
322 | /* Build the LABEL_DECL node. */ | |
323 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
324 | ||
325 | /* Tell the debugger where the label came from. */ | |
f8d0aee5 | 326 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
c8cc8542 | 327 | gfc_set_decl_location (label_decl, &lp->where); |
6de9cd9a DN |
328 | else |
329 | DECL_ARTIFICIAL (label_decl) = 1; | |
330 | ||
331 | /* Store the label in the label list and return the LABEL_DECL. */ | |
332 | lp->backend_decl = label_decl; | |
333 | return label_decl; | |
334 | } | |
335 | } | |
336 | ||
337 | ||
338 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
339 | ||
340 | static tree | |
341 | gfc_sym_identifier (gfc_symbol * sym) | |
342 | { | |
a7ad6c2d TB |
343 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
344 | return (get_identifier ("MAIN__")); | |
345 | else | |
346 | return (get_identifier (sym->name)); | |
6de9cd9a DN |
347 | } |
348 | ||
349 | ||
350 | /* Construct mangled name from symbol name. */ | |
351 | ||
352 | static tree | |
353 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
354 | { | |
355 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
356 | ||
a8b3b0b6 CR |
357 | /* Prevent the mangling of identifiers that have an assigned |
358 | binding label (mainly those that are bind(c)). */ | |
62603fae JB |
359 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
360 | return get_identifier (sym->binding_label); | |
8b704316 | 361 | |
345bd7eb PT |
362 | if (!sym->fn_result_spec) |
363 | { | |
364 | if (sym->module == NULL) | |
365 | return gfc_sym_identifier (sym); | |
366 | else | |
367 | { | |
368 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); | |
369 | return get_identifier (name); | |
370 | } | |
371 | } | |
6de9cd9a DN |
372 | else |
373 | { | |
345bd7eb PT |
374 | /* This is an entity that is actually local to a module procedure |
375 | that appears in the result specification expression. Since | |
376 | sym->module will be a zero length string, we use ns->proc_name | |
377 | instead. */ | |
378 | if (sym->ns->proc_name && sym->ns->proc_name->module) | |
379 | { | |
380 | snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s", | |
381 | sym->ns->proc_name->module, | |
382 | sym->ns->proc_name->name, | |
383 | sym->name); | |
384 | return get_identifier (name); | |
385 | } | |
386 | else | |
387 | { | |
388 | snprintf (name, sizeof name, "__%s_PROC_%s", | |
389 | sym->ns->proc_name->name, sym->name); | |
390 | return get_identifier (name); | |
391 | } | |
6de9cd9a DN |
392 | } |
393 | } | |
394 | ||
395 | ||
396 | /* Construct mangled function name from symbol name. */ | |
397 | ||
398 | static tree | |
399 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
400 | { | |
401 | int has_underscore; | |
402 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
403 | ||
a8b3b0b6 CR |
404 | /* It may be possible to simply use the binding label if it's |
405 | provided, and remove the other checks. Then we could use it | |
406 | for other things if we wished. */ | |
407 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
62603fae | 408 | sym->binding_label) |
a8b3b0b6 CR |
409 | /* use the binding label rather than the mangled name */ |
410 | return get_identifier (sym->binding_label); | |
411 | ||
4668d6f9 | 412 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
c89686a8 PT |
413 | || (sym->module != NULL && (sym->attr.external |
414 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4668d6f9 | 415 | && !sym->attr.module_procedure) |
6de9cd9a | 416 | { |
ecf24057 FXC |
417 | /* Main program is mangled into MAIN__. */ |
418 | if (sym->attr.is_main_program) | |
419 | return get_identifier ("MAIN__"); | |
420 | ||
421 | /* Intrinsic procedures are never mangled. */ | |
422 | if (sym->attr.proc == PROC_INTRINSIC) | |
6de9cd9a DN |
423 | return get_identifier (sym->name); |
424 | ||
c61819ff | 425 | if (flag_underscoring) |
6de9cd9a DN |
426 | { |
427 | has_underscore = strchr (sym->name, '_') != 0; | |
203c7ebf | 428 | if (flag_second_underscore && has_underscore) |
6de9cd9a DN |
429 | snprintf (name, sizeof name, "%s__", sym->name); |
430 | else | |
431 | snprintf (name, sizeof name, "%s_", sym->name); | |
432 | return get_identifier (name); | |
433 | } | |
434 | else | |
435 | return get_identifier (sym->name); | |
436 | } | |
437 | else | |
438 | { | |
9998ef84 | 439 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
6de9cd9a DN |
440 | return get_identifier (name); |
441 | } | |
442 | } | |
443 | ||
444 | ||
43ce5e52 FXC |
445 | void |
446 | gfc_set_decl_assembler_name (tree decl, tree name) | |
447 | { | |
448 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
449 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
450 | } | |
451 | ||
452 | ||
bae88af6 TS |
453 | /* Returns true if a variable of specified size should go on the stack. */ |
454 | ||
455 | int | |
456 | gfc_can_put_var_on_stack (tree size) | |
457 | { | |
458 | unsigned HOST_WIDE_INT low; | |
459 | ||
460 | if (!INTEGER_CST_P (size)) | |
461 | return 0; | |
462 | ||
203c7ebf | 463 | if (flag_max_stack_var_size < 0) |
bae88af6 TS |
464 | return 1; |
465 | ||
807e902e | 466 | if (!tree_fits_uhwi_p (size)) |
bae88af6 TS |
467 | return 0; |
468 | ||
469 | low = TREE_INT_CST_LOW (size); | |
203c7ebf | 470 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
bae88af6 TS |
471 | return 0; |
472 | ||
473 | /* TODO: Set a per-function stack size limit. */ | |
474 | ||
475 | return 1; | |
476 | } | |
477 | ||
478 | ||
b122dc6a JJ |
479 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
480 | an expression involving its corresponding pointer. There are | |
481 | 2 cases; one for variable size arrays, and one for everything else, | |
482 | because variable-sized arrays require one fewer level of | |
483 | indirection. */ | |
484 | ||
485 | static void | |
486 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
487 | { | |
488 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
489 | tree value; | |
490 | ||
491 | /* Parameters need to be dereferenced. */ | |
8b704316 | 492 | if (sym->cp_pointer->attr.dummy) |
db3927fb AH |
493 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
494 | ptr_decl); | |
b122dc6a JJ |
495 | |
496 | /* Check to see if we're dealing with a variable-sized array. */ | |
497 | if (sym->attr.dimension | |
8b704316 PT |
498 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
499 | { | |
831d7813 | 500 | /* These decls will be dereferenced later, so we don't dereference |
b122dc6a JJ |
501 | them here. */ |
502 | value = convert (TREE_TYPE (decl), ptr_decl); | |
503 | } | |
504 | else | |
505 | { | |
506 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
507 | ptr_decl); | |
db3927fb AH |
508 | value = build_fold_indirect_ref_loc (input_location, |
509 | ptr_decl); | |
b122dc6a JJ |
510 | } |
511 | ||
512 | SET_DECL_VALUE_EXPR (decl, value); | |
513 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
6c7a4dfd | 514 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b122dc6a JJ |
515 | } |
516 | ||
517 | ||
faf28b3a | 518 | /* Finish processing of a declaration without an initial value. */ |
6de9cd9a DN |
519 | |
520 | static void | |
faf28b3a | 521 | gfc_finish_decl (tree decl) |
6de9cd9a | 522 | { |
faf28b3a TS |
523 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
524 | || DECL_INITIAL (decl) == NULL_TREE); | |
6de9cd9a | 525 | |
d168c883 | 526 | if (!VAR_P (decl)) |
faf28b3a | 527 | return; |
6de9cd9a | 528 | |
faf28b3a TS |
529 | if (DECL_SIZE (decl) == NULL_TREE |
530 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
531 | layout_decl (decl, 0); | |
532 | ||
533 | /* A few consistency checks. */ | |
534 | /* A static variable with an incomplete type is an error if it is | |
535 | initialized. Also if it is not file scope. Otherwise, let it | |
536 | through, but if it is not `extern' then it may cause an error | |
537 | message later. */ | |
538 | /* An automatic variable with an incomplete type is an error. */ | |
539 | ||
540 | /* We should know the storage size. */ | |
541 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
8b704316 | 542 | || (TREE_STATIC (decl) |
faf28b3a TS |
543 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
544 | : DECL_EXTERNAL (decl))); | |
545 | ||
546 | /* The storage size should be constant. */ | |
547 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
548 | || !DECL_SIZE (decl) | |
549 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
6de9cd9a DN |
550 | } |
551 | ||
552 | ||
92d28cbb JJ |
553 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
554 | ||
555 | void | |
556 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
557 | { | |
558 | if (!attr->dimension && !attr->codimension) | |
559 | { | |
560 | /* Handle scalar allocatable variables. */ | |
561 | if (attr->allocatable) | |
562 | { | |
563 | gfc_allocate_lang_decl (decl); | |
564 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
565 | } | |
566 | /* Handle scalar pointer variables. */ | |
567 | if (attr->pointer) | |
568 | { | |
569 | gfc_allocate_lang_decl (decl); | |
570 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
571 | } | |
572 | } | |
573 | } | |
574 | ||
575 | ||
6de9cd9a DN |
576 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
577 | ||
578 | static void | |
579 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
580 | { | |
7b901ac4 | 581 | tree new_type; |
83d890b9 | 582 | |
b122dc6a | 583 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
83d890b9 | 584 | if (sym->attr.cray_pointee) |
b122dc6a | 585 | gfc_finish_cray_pointee (decl, sym); |
83d890b9 | 586 | |
63a1dd10 AV |
587 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
588 | This is the equivalent of the TARGET variables. | |
589 | We also need to set this if the variable is passed by reference in a | |
590 | CALL statement. */ | |
6de9cd9a DN |
591 | if (sym->attr.target) |
592 | TREE_ADDRESSABLE (decl) = 1; | |
63a1dd10 | 593 | |
6de9cd9a DN |
594 | /* If it wasn't used we wouldn't be getting it. */ |
595 | TREE_USED (decl) = 1; | |
596 | ||
1e4b1376 TB |
597 | if (sym->attr.flavor == FL_PARAMETER |
598 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
599 | TREE_READONLY (decl) = 1; | |
600 | ||
6de9cd9a DN |
601 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
602 | because this would add them to the current scope rather than the | |
603 | function scope. */ | |
604 | if (current_function_decl != NULL_TREE) | |
605 | { | |
d48734ef | 606 | if (sym->ns->proc_name->backend_decl == current_function_decl |
9abe5e56 | 607 | || sym->result == sym) |
6de9cd9a | 608 | gfc_add_decl_to_function (decl); |
9abe5e56 DK |
609 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
610 | /* This is a BLOCK construct. */ | |
611 | add_decl_as_local (decl); | |
6de9cd9a DN |
612 | else |
613 | gfc_add_decl_to_parent_function (decl); | |
614 | } | |
615 | ||
b122dc6a JJ |
616 | if (sym->attr.cray_pointee) |
617 | return; | |
618 | ||
5af6fa0b | 619 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
a8b3b0b6 CR |
620 | { |
621 | /* We need to put variables that are bind(c) into the common | |
622 | segment of the object file, because this is what C would do. | |
623 | gfortran would typically put them in either the BSS or | |
624 | initialized data segments, and only mark them as common if | |
625 | they were part of common blocks. However, if they are not put | |
93c71688 | 626 | into common space, then C cannot initialize global Fortran |
a8b3b0b6 CR |
627 | variables that it interoperates with and the draft says that |
628 | either Fortran or C should be able to initialize it (but not | |
629 | both, of course.) (J3/04-007, section 15.3). */ | |
630 | TREE_PUBLIC(decl) = 1; | |
631 | DECL_COMMON(decl) = 1; | |
a56ea54a PT |
632 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
633 | { | |
634 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
635 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
636 | } | |
a8b3b0b6 | 637 | } |
8b704316 | 638 | |
6de9cd9a | 639 | /* If a variable is USE associated, it's always external. */ |
4668d6f9 | 640 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
6de9cd9a DN |
641 | { |
642 | DECL_EXTERNAL (decl) = 1; | |
643 | TREE_PUBLIC (decl) = 1; | |
644 | } | |
345bd7eb PT |
645 | else if (sym->fn_result_spec && !sym->ns->proc_name->module) |
646 | { | |
647 | ||
648 | if (sym->ns->proc_name->attr.if_source != IFSRC_DECL) | |
649 | DECL_EXTERNAL (decl) = 1; | |
650 | else | |
651 | TREE_STATIC (decl) = 1; | |
652 | ||
653 | TREE_PUBLIC (decl) = 1; | |
654 | } | |
cb9e4f55 | 655 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
6de9cd9a | 656 | { |
adf3ed3f | 657 | /* TODO: Don't set sym->module for result or dummy variables. */ |
d48734ef | 658 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
58341a42 | 659 | |
a56ea54a | 660 | TREE_PUBLIC (decl) = 1; |
6de9cd9a | 661 | TREE_STATIC (decl) = 1; |
a56ea54a PT |
662 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
663 | { | |
664 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
665 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
666 | } | |
6de9cd9a DN |
667 | } |
668 | ||
b7b184a8 PT |
669 | /* Derived types are a bit peculiar because of the possibility of |
670 | a default initializer; this must be applied each time the variable | |
671 | comes into scope it therefore need not be static. These variables | |
672 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
df2fba9e | 673 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
b7b184a8 PT |
674 | SAVE_EXPLICIT. */ |
675 | if (!sym->attr.use_assoc | |
676 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
b8ff4e88 | 677 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
f19626cf | 678 | || (flag_coarray == GFC_FCOARRAY_LIB |
b8ff4e88 | 679 | && sym->attr.codimension && !sym->attr.allocatable))) |
6de9cd9a | 680 | TREE_STATIC (decl) = 1; |
775e6c3a | 681 | |
e73d3ca6 PT |
682 | /* If derived-type variables with DTIO procedures are not made static |
683 | some bits of code referencing them get optimized away. | |
684 | TODO Understand why this is so and fix it. */ | |
685 | if (!sym->attr.use_assoc | |
686 | && ((sym->ts.type == BT_DERIVED | |
687 | && sym->ts.u.derived->attr.has_dtio_procs) | |
688 | || (sym->ts.type == BT_CLASS | |
689 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
690 | TREE_STATIC (decl) = 1; | |
691 | ||
775e6c3a TB |
692 | if (sym->attr.volatile_) |
693 | { | |
775e6c3a | 694 | TREE_THIS_VOLATILE (decl) = 1; |
c28d1d9b | 695 | TREE_SIDE_EFFECTS (decl) = 1; |
7b901ac4 KG |
696 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
697 | TREE_TYPE (decl) = new_type; | |
8b704316 | 698 | } |
775e6c3a | 699 | |
6de9cd9a | 700 | /* Keep variables larger than max-stack-var-size off stack. */ |
34d567d1 | 701 | if (!sym->ns->proc_name->attr.recursive && !sym->attr.automatic |
6de9cd9a | 702 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
9eccb94d JJ |
703 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
704 | /* Put variable length auto array pointers always into stack. */ | |
705 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
706 | || sym->attr.dimension == 0 | |
707 | || sym->as->type != AS_EXPLICIT | |
708 | || sym->attr.pointer | |
709 | || sym->attr.allocatable) | |
710 | && !DECL_ARTIFICIAL (decl)) | |
43068916 FR |
711 | { |
712 | TREE_STATIC (decl) = 1; | |
713 | ||
714 | /* Because the size of this variable isn't known until now, we may have | |
715 | greedily added an initializer to this variable (in build_init_assign) | |
716 | even though the max-stack-var-size indicates the variable should be | |
717 | static. Therefore we rip out the automatic initializer here and | |
718 | replace it with a static one. */ | |
719 | gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); | |
720 | gfc_code *prev = NULL; | |
721 | gfc_code *code = sym->ns->code; | |
722 | while (code && code->op == EXEC_INIT_ASSIGN) | |
723 | { | |
724 | /* Look for an initializer meant for this symbol. */ | |
725 | if (code->expr1->symtree == st) | |
726 | { | |
727 | if (prev) | |
728 | prev->next = code->next; | |
729 | else | |
730 | sym->ns->code = code->next; | |
731 | ||
732 | break; | |
733 | } | |
734 | ||
735 | prev = code; | |
736 | code = code->next; | |
737 | } | |
738 | if (code && code->op == EXEC_INIT_ASSIGN) | |
739 | { | |
740 | /* Keep the init expression for a static initializer. */ | |
741 | sym->value = code->expr2; | |
742 | /* Cleanup the defunct code object, without freeing the init expr. */ | |
743 | code->expr2 = NULL; | |
744 | gfc_free_statement (code); | |
745 | free (code); | |
746 | } | |
747 | } | |
6c7a4dfd JJ |
748 | |
749 | /* Handle threadprivate variables. */ | |
8893239d | 750 | if (sym->attr.threadprivate |
6c7a4dfd | 751 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
56363ffd | 752 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
92d28cbb JJ |
753 | |
754 | gfc_finish_decl_attrs (decl, &sym->attr); | |
6de9cd9a DN |
755 | } |
756 | ||
757 | ||
758 | /* Allocate the lang-specific part of a decl. */ | |
759 | ||
760 | void | |
761 | gfc_allocate_lang_decl (tree decl) | |
762 | { | |
92d28cbb JJ |
763 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
764 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
6de9cd9a DN |
765 | } |
766 | ||
767 | /* Remember a symbol to generate initialization/cleanup code at function | |
768 | entry/exit. */ | |
769 | ||
770 | static void | |
771 | gfc_defer_symbol_init (gfc_symbol * sym) | |
772 | { | |
773 | gfc_symbol *p; | |
774 | gfc_symbol *last; | |
775 | gfc_symbol *head; | |
776 | ||
777 | /* Don't add a symbol twice. */ | |
778 | if (sym->tlink) | |
779 | return; | |
780 | ||
781 | last = head = sym->ns->proc_name; | |
782 | p = last->tlink; | |
783 | ||
784 | /* Make sure that setup code for dummy variables which are used in the | |
785 | setup of other variables is generated first. */ | |
786 | if (sym->attr.dummy) | |
787 | { | |
788 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
789 | This is a circular list, so don't go past the head. */ | |
790 | while (p != head | |
791 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
792 | { | |
793 | last = p; | |
794 | p = p->tlink; | |
795 | } | |
796 | } | |
797 | /* Insert in between last and p. */ | |
798 | last->tlink = sym; | |
799 | sym->tlink = p; | |
800 | } | |
801 | ||
802 | ||
0101807c PT |
803 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
804 | backend_decl for a module symbol, if it all ready exists. If the | |
805 | module gsymbol does not exist, it is created. If the symbol does | |
806 | not exist, it is added to the gsymbol namespace. Returns true if | |
807 | an existing backend_decl is found. */ | |
808 | ||
809 | bool | |
810 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
811 | { | |
812 | gfc_gsymbol *gsym; | |
813 | gfc_symbol *s; | |
814 | gfc_symtree *st; | |
815 | ||
816 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
817 | ||
818 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
819 | { | |
820 | st = NULL; | |
821 | s = NULL; | |
822 | ||
f6288c24 | 823 | /* Check for a symbol with the same name. */ |
0101807c PT |
824 | if (gsym) |
825 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
826 | ||
827 | if (!s) | |
828 | { | |
829 | if (!gsym) | |
830 | { | |
831 | gsym = gfc_get_gsymbol (sym->module); | |
832 | gsym->type = GSYM_MODULE; | |
833 | gsym->ns = gfc_get_namespace (NULL, 0); | |
834 | } | |
835 | ||
836 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
837 | st->n.sym = sym; | |
838 | sym->refs++; | |
839 | } | |
f6288c24 | 840 | else if (gfc_fl_struct (sym->attr.flavor)) |
0101807c | 841 | { |
c3f34952 TB |
842 | if (s && s->attr.flavor == FL_PROCEDURE) |
843 | { | |
844 | gfc_interface *intr; | |
845 | gcc_assert (s->attr.generic); | |
846 | for (intr = s->generic; intr; intr = intr->next) | |
f6288c24 | 847 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c3f34952 TB |
848 | { |
849 | s = intr->sym; | |
850 | break; | |
851 | } | |
852 | } | |
853 | ||
f6288c24 FR |
854 | /* Normally we can assume that s is a derived-type symbol since it |
855 | shares a name with the derived-type sym. However if sym is a | |
856 | STRUCTURE, it may in fact share a name with any other basic type | |
857 | variable. If s is in fact of derived type then we can continue | |
858 | looking for a duplicate type declaration. */ | |
859 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
860 | { | |
861 | s = s->ts.u.derived; | |
862 | } | |
863 | ||
864 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
865 | { | |
866 | if (s->attr.flavor == FL_UNION) | |
867 | s->backend_decl = gfc_get_union_type (s); | |
868 | else | |
869 | s->backend_decl = gfc_get_derived_type (s); | |
870 | } | |
0101807c PT |
871 | gfc_copy_dt_decls_ifequal (s, sym, true); |
872 | return true; | |
873 | } | |
874 | else if (s->backend_decl) | |
875 | { | |
f29bda83 | 876 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
0101807c PT |
877 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
878 | true); | |
879 | else if (sym->ts.type == BT_CHARACTER) | |
880 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
881 | sym->backend_decl = s->backend_decl; | |
882 | return true; | |
883 | } | |
884 | } | |
885 | return false; | |
886 | } | |
887 | ||
888 | ||
6de9cd9a DN |
889 | /* Create an array index type variable with function scope. */ |
890 | ||
891 | static tree | |
892 | create_index_var (const char * pfx, int nest) | |
893 | { | |
894 | tree decl; | |
895 | ||
896 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
897 | if (nest) | |
898 | gfc_add_decl_to_parent_function (decl); | |
899 | else | |
900 | gfc_add_decl_to_function (decl); | |
901 | return decl; | |
902 | } | |
903 | ||
904 | ||
905 | /* Create variables to hold all the non-constant bits of info for a | |
906 | descriptorless array. Remember these in the lang-specific part of the | |
907 | type. */ | |
908 | ||
909 | static void | |
910 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
911 | { | |
912 | tree type; | |
913 | int dim; | |
914 | int nest; | |
52bf62f9 | 915 | gfc_namespace* procns; |
f3b0bb7a AV |
916 | symbol_attribute *array_attr; |
917 | gfc_array_spec *as; | |
918 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
6de9cd9a DN |
919 | |
920 | type = TREE_TYPE (decl); | |
f3b0bb7a AV |
921 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
922 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
6de9cd9a DN |
923 | |
924 | /* We just use the descriptor, if there is one. */ | |
925 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
926 | return; | |
927 | ||
6e45f57b | 928 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
52bf62f9 DK |
929 | procns = gfc_find_proc_namespace (sym->ns); |
930 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
6de9cd9a DN |
931 | && !sym->attr.contained; |
932 | ||
f3b0bb7a AV |
933 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
934 | && as->type != AS_ASSUMED_SHAPE | |
b8ff4e88 TB |
935 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
936 | { | |
937 | tree token; | |
213ab0a6 TB |
938 | tree token_type = build_qualified_type (pvoid_type_node, |
939 | TYPE_QUAL_RESTRICT); | |
940 | ||
941 | if (sym->module && (sym->attr.use_assoc | |
942 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
943 | { | |
944 | tree token_name | |
945 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
946 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
947 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
948 | token_type); | |
de1184c0 TB |
949 | if (sym->attr.use_assoc) |
950 | DECL_EXTERNAL (token) = 1; | |
951 | else | |
952 | TREE_STATIC (token) = 1; | |
953 | ||
a56ea54a PT |
954 | TREE_PUBLIC (token) = 1; |
955 | ||
956 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
957 | { | |
958 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
959 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
960 | } | |
213ab0a6 TB |
961 | } |
962 | else | |
de1184c0 TB |
963 | { |
964 | token = gfc_create_var_np (token_type, "caf_token"); | |
965 | TREE_STATIC (token) = 1; | |
966 | } | |
b8ff4e88 | 967 | |
b8ff4e88 TB |
968 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
969 | DECL_ARTIFICIAL (token) = 1; | |
de1184c0 TB |
970 | DECL_NONALIASED (token) = 1; |
971 | ||
972 | if (sym->module && !sym->attr.use_assoc) | |
973 | { | |
974 | pushdecl (token); | |
975 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
976 | gfc_module_add_decl (cur_module, token); | |
977 | } | |
118d5ed3 AV |
978 | else if (sym->attr.host_assoc |
979 | && TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
980 | != TRANSLATION_UNIT_DECL) | |
3083fc56 | 981 | gfc_add_decl_to_parent_function (token); |
de1184c0 TB |
982 | else |
983 | gfc_add_decl_to_function (token); | |
b8ff4e88 TB |
984 | } |
985 | ||
6de9cd9a DN |
986 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
987 | { | |
988 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
01306727 FXC |
989 | { |
990 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
991 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
992 | } | |
aa9c57ec | 993 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
6de9cd9a | 994 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
f3b0bb7a AV |
995 | && (as->type != AS_ASSUMED_SIZE |
996 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
01306727 FXC |
997 | { |
998 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
999 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1000 | } | |
6de9cd9a DN |
1001 | |
1002 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
01306727 FXC |
1003 | { |
1004 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
1005 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
1006 | } | |
6de9cd9a | 1007 | } |
a3935ffc TB |
1008 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
1009 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
1010 | { | |
1011 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
1012 | { | |
1013 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1014 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1015 | } | |
1016 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
1017 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
1018 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
1019 | { | |
1020 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1021 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1022 | } | |
1023 | } | |
6de9cd9a DN |
1024 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
1025 | { | |
1026 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
1027 | "offset"); | |
01306727 FXC |
1028 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
1029 | ||
6de9cd9a DN |
1030 | if (nest) |
1031 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1032 | else | |
1033 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1034 | } | |
417ab240 JJ |
1035 | |
1036 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
f3b0bb7a | 1037 | && as->type != AS_ASSUMED_SIZE) |
01306727 FXC |
1038 | { |
1039 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
1040 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
1041 | } | |
417ab240 JJ |
1042 | |
1043 | if (POINTER_TYPE_P (type)) | |
1044 | { | |
1045 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
1046 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
1047 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
1048 | type = TREE_TYPE (type); | |
1049 | } | |
1050 | ||
1051 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
1052 | { | |
1053 | tree size, range; | |
1054 | ||
bc98ed60 TB |
1055 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1056 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
417ab240 JJ |
1057 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
1058 | size); | |
1059 | TYPE_DOMAIN (type) = range; | |
1060 | layout_type (type); | |
1061 | } | |
25c29c56 | 1062 | |
eb401400 | 1063 | if (TYPE_NAME (type) != NULL_TREE && as->rank > 0 |
f3b0bb7a | 1064 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
d168c883 | 1065 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
25c29c56 JJ |
1066 | { |
1067 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1068 | ||
f3b0bb7a | 1069 | for (dim = 0; dim < as->rank - 1; dim++) |
25c29c56 JJ |
1070 | { |
1071 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1072 | gtype = TREE_TYPE (gtype); | |
1073 | } | |
1074 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1075 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
1076 | TYPE_NAME (type) = NULL_TREE; | |
1077 | } | |
1078 | ||
1079 | if (TYPE_NAME (type) == NULL_TREE) | |
1080 | { | |
1081 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
1082 | ||
f3b0bb7a | 1083 | for (dim = as->rank - 1; dim >= 0; dim--) |
25c29c56 | 1084 | { |
fcd3c5a9 JJ |
1085 | tree lbound, ubound; |
1086 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
1087 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
1088 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
25c29c56 | 1089 | gtype = build_array_type (gtype, rtype); |
e429bb49 JJ |
1090 | /* Ensure the bound variables aren't optimized out at -O0. |
1091 | For -O1 and above they often will be optimized out, but | |
cd3f04c8 JJ |
1092 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1093 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1094 | end up in debug info. */ | |
d168c883 JJ |
1095 | if (lbound |
1096 | && VAR_P (lbound) | |
1097 | && DECL_ARTIFICIAL (lbound) | |
1098 | && DECL_IGNORED_P (lbound)) | |
fcd3c5a9 JJ |
1099 | { |
1100 | if (DECL_NAME (lbound) | |
1101 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1102 | "lbound") != 0) | |
cd3f04c8 | 1103 | DECL_NAMELESS (lbound) = 1; |
fcd3c5a9 JJ |
1104 | DECL_IGNORED_P (lbound) = 0; |
1105 | } | |
d168c883 JJ |
1106 | if (ubound |
1107 | && VAR_P (ubound) | |
1108 | && DECL_ARTIFICIAL (ubound) | |
1109 | && DECL_IGNORED_P (ubound)) | |
fcd3c5a9 JJ |
1110 | { |
1111 | if (DECL_NAME (ubound) | |
1112 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1113 | "ubound") != 0) | |
cd3f04c8 | 1114 | DECL_NAMELESS (ubound) = 1; |
fcd3c5a9 JJ |
1115 | DECL_IGNORED_P (ubound) = 0; |
1116 | } | |
25c29c56 | 1117 | } |
c2255bc4 AH |
1118 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1119 | TYPE_DECL, NULL, gtype); | |
25c29c56 JJ |
1120 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1121 | } | |
6de9cd9a DN |
1122 | } |
1123 | ||
1124 | ||
1125 | /* For some dummy arguments we don't use the actual argument directly. | |
bae88af6 | 1126 | Instead we create a local decl and use that. This allows us to perform |
6de9cd9a DN |
1127 | initialization, and construct full type information. */ |
1128 | ||
1129 | static tree | |
1130 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1131 | { | |
1132 | tree decl; | |
1133 | tree type; | |
1134 | gfc_array_spec *as; | |
f3b0bb7a | 1135 | symbol_attribute *array_attr; |
6de9cd9a | 1136 | char *name; |
dcfef7d4 | 1137 | gfc_packed packed; |
6de9cd9a DN |
1138 | int n; |
1139 | bool known_size; | |
f3b0bb7a AV |
1140 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1141 | ||
1142 | /* Use the array as and attr. */ | |
1143 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1144 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1145 | ||
1146 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1147 | For class arrays the information if sym is an allocatable or pointer | |
1148 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1149 | too many reasons to be of use here). */ | |
1150 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1151 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1152 | || array_attr->allocatable | |
1153 | || (as && as->type == AS_ASSUMED_RANK)) | |
6de9cd9a DN |
1154 | return dummy; |
1155 | ||
f3b0bb7a AV |
1156 | /* Add to list of variables if not a fake result variable. |
1157 | These symbols are set on the symbol only, not on the class component. */ | |
6de9cd9a DN |
1158 | if (sym->attr.result || sym->attr.dummy) |
1159 | gfc_defer_symbol_init (sym); | |
1160 | ||
f3b0bb7a AV |
1161 | /* For a class array the array descriptor is in the _data component, while |
1162 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1163 | descriptor. */ | |
1164 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1165 | : TREE_TYPE (dummy)); | |
1166 | /* type now is the array descriptor w/o any indirection. */ | |
6e45f57b | 1167 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
f3b0bb7a | 1168 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
6de9cd9a | 1169 | |
f8d0aee5 | 1170 | /* Do we know the element size? */ |
6de9cd9a | 1171 | known_size = sym->ts.type != BT_CHARACTER |
bc21d315 | 1172 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
8b704316 | 1173 | |
f3b0bb7a | 1174 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
6de9cd9a DN |
1175 | { |
1176 | /* For descriptorless arrays with known element size the actual | |
1177 | argument is sufficient. */ | |
6de9cd9a DN |
1178 | gfc_build_qualified_array (dummy, sym); |
1179 | return dummy; | |
1180 | } | |
1181 | ||
6de9cd9a DN |
1182 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1183 | { | |
fa951694 | 1184 | /* Create a descriptorless array pointer. */ |
dcfef7d4 | 1185 | packed = PACKED_NO; |
1c3339af FXC |
1186 | |
1187 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1188 | are not repacked. */ | |
c61819ff | 1189 | if (!flag_repack_arrays || sym->attr.target) |
6de9cd9a DN |
1190 | { |
1191 | if (as->type == AS_ASSUMED_SIZE) | |
dcfef7d4 | 1192 | packed = PACKED_FULL; |
6de9cd9a DN |
1193 | } |
1194 | else | |
1195 | { | |
1196 | if (as->type == AS_EXPLICIT) | |
1197 | { | |
dcfef7d4 | 1198 | packed = PACKED_FULL; |
6de9cd9a DN |
1199 | for (n = 0; n < as->rank; n++) |
1200 | { | |
1201 | if (!(as->upper[n] | |
1202 | && as->lower[n] | |
1203 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1204 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
ae382ebd PCC |
1205 | { |
1206 | packed = PACKED_PARTIAL; | |
1207 | break; | |
1208 | } | |
6de9cd9a DN |
1209 | } |
1210 | } | |
1211 | else | |
dcfef7d4 | 1212 | packed = PACKED_PARTIAL; |
6de9cd9a DN |
1213 | } |
1214 | ||
f3b0bb7a AV |
1215 | /* For classarrays the element type is required, but |
1216 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1217 | type = is_classarray ? gfc_get_element_type (type) | |
1218 | : gfc_typenode_for_spec (&sym->ts); | |
1219 | type = gfc_get_nodesc_array_type (type, as, packed, | |
10174ddf | 1220 | !sym->attr.target); |
6de9cd9a DN |
1221 | } |
1222 | else | |
1223 | { | |
1224 | /* We now have an expression for the element size, so create a fully | |
1225 | qualified type. Reset sym->backend decl or this will just return the | |
1226 | old type. */ | |
3e978d30 | 1227 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
6de9cd9a DN |
1228 | sym->backend_decl = NULL_TREE; |
1229 | type = gfc_sym_type (sym); | |
dcfef7d4 | 1230 | packed = PACKED_FULL; |
6de9cd9a DN |
1231 | } |
1232 | ||
1233 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
c2255bc4 AH |
1234 | decl = build_decl (input_location, |
1235 | VAR_DECL, get_identifier (name), type); | |
6de9cd9a DN |
1236 | |
1237 | DECL_ARTIFICIAL (decl) = 1; | |
cd3f04c8 | 1238 | DECL_NAMELESS (decl) = 1; |
6de9cd9a DN |
1239 | TREE_PUBLIC (decl) = 0; |
1240 | TREE_STATIC (decl) = 0; | |
1241 | DECL_EXTERNAL (decl) = 0; | |
1242 | ||
879287d9 JJ |
1243 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1244 | if (sym->attr.optional) | |
1245 | TREE_NO_WARNING (decl) = 1; | |
1246 | ||
6de9cd9a DN |
1247 | /* We should never get deferred shape arrays here. We used to because of |
1248 | frontend bugs. */ | |
f3b0bb7a | 1249 | gcc_assert (as->type != AS_DEFERRED); |
6de9cd9a | 1250 | |
dcfef7d4 TS |
1251 | if (packed == PACKED_PARTIAL) |
1252 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1253 | else if (packed == PACKED_FULL) | |
1254 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
6de9cd9a DN |
1255 | |
1256 | gfc_build_qualified_array (decl, sym); | |
1257 | ||
1258 | if (DECL_LANG_SPECIFIC (dummy)) | |
1259 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1260 | else | |
1261 | gfc_allocate_lang_decl (decl); | |
1262 | ||
1263 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1264 | ||
1265 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1266 | || sym->attr.contained) | |
1267 | gfc_add_decl_to_function (decl); | |
1268 | else | |
1269 | gfc_add_decl_to_parent_function (decl); | |
1270 | ||
1271 | return decl; | |
1272 | } | |
1273 | ||
77f2a970 JJ |
1274 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1275 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1276 | pointing to the artificial variable for debug info purposes. */ | |
1277 | ||
1278 | static void | |
1279 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1280 | { | |
1281 | tree decl, dummy; | |
1282 | ||
1283 | if (! nonlocal_dummy_decl_pset) | |
6e2830c3 | 1284 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
77f2a970 | 1285 | |
6e2830c3 | 1286 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
77f2a970 JJ |
1287 | return; |
1288 | ||
1289 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
c2255bc4 | 1290 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
77f2a970 JJ |
1291 | TREE_TYPE (sym->backend_decl)); |
1292 | DECL_ARTIFICIAL (decl) = 0; | |
1293 | TREE_USED (decl) = 1; | |
1294 | TREE_PUBLIC (decl) = 0; | |
1295 | TREE_STATIC (decl) = 0; | |
1296 | DECL_EXTERNAL (decl) = 0; | |
1297 | if (DECL_BY_REFERENCE (dummy)) | |
1298 | DECL_BY_REFERENCE (decl) = 1; | |
1299 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1300 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1301 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1302 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
910ad8de | 1303 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
77f2a970 JJ |
1304 | nonlocal_dummy_decls = decl; |
1305 | } | |
6de9cd9a DN |
1306 | |
1307 | /* Return a constant or a variable to use as a string length. Does not | |
1308 | add the decl to the current scope. */ | |
1309 | ||
1310 | static tree | |
1311 | gfc_create_string_length (gfc_symbol * sym) | |
1312 | { | |
bc21d315 JW |
1313 | gcc_assert (sym->ts.u.cl); |
1314 | gfc_conv_const_charlen (sym->ts.u.cl); | |
cadb8f42 | 1315 | |
bc21d315 | 1316 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
6de9cd9a | 1317 | { |
cadb8f42 | 1318 | tree length; |
6052c299 | 1319 | const char *name; |
6de9cd9a | 1320 | |
26c08c03 TB |
1321 | /* The string length variable shall be in static memory if it is either |
1322 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1323 | relevant is "len=:" - otherwise, it is either a constant length or | |
1324 | it is an automatic variable. */ | |
36085529 TB |
1325 | bool static_length = sym->attr.save |
1326 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
203c7ebf | 1327 | || (flag_max_stack_var_size == 0 |
26c08c03 TB |
1328 | && sym->ts.deferred && !sym->attr.dummy |
1329 | && !sym->attr.result && !sym->attr.function); | |
36085529 TB |
1330 | |
1331 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1332 | variables as some systems do not support the "." in the assembler name. | |
1333 | For nonstatic variables, the "." does not appear in assembler. */ | |
1334 | if (static_length) | |
1335 | { | |
1336 | if (sym->module) | |
1337 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1338 | sym->name); | |
1339 | else | |
1340 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1341 | } | |
1342 | else if (sym->module) | |
6052c299 TB |
1343 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1344 | else | |
1345 | name = gfc_get_string (".%s", sym->name); | |
1346 | ||
c2255bc4 AH |
1347 | length = build_decl (input_location, |
1348 | VAR_DECL, get_identifier (name), | |
d7177ab2 | 1349 | gfc_charlen_type_node); |
6de9cd9a DN |
1350 | DECL_ARTIFICIAL (length) = 1; |
1351 | TREE_USED (length) = 1; | |
417ab240 JJ |
1352 | if (sym->ns->proc_name->tlink != NULL) |
1353 | gfc_defer_symbol_init (sym); | |
cadb8f42 | 1354 | |
bc21d315 | 1355 | sym->ts.u.cl->backend_decl = length; |
6052c299 | 1356 | |
36085529 | 1357 | if (static_length) |
6052c299 TB |
1358 | TREE_STATIC (length) = 1; |
1359 | ||
1360 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1361 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1362 | TREE_PUBLIC (length) = 1; | |
6de9cd9a DN |
1363 | } |
1364 | ||
bc21d315 JW |
1365 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1366 | return sym->ts.u.cl->backend_decl; | |
6de9cd9a DN |
1367 | } |
1368 | ||
910450c1 FW |
1369 | /* If a variable is assigned a label, we add another two auxiliary |
1370 | variables. */ | |
1371 | ||
1372 | static void | |
1373 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1374 | { | |
1375 | tree addr; | |
1376 | tree length; | |
1377 | tree decl; | |
1378 | ||
1379 | gcc_assert (sym->backend_decl); | |
1380 | ||
1381 | decl = sym->backend_decl; | |
1382 | gfc_allocate_lang_decl (decl); | |
1383 | GFC_DECL_ASSIGN (decl) = 1; | |
c2255bc4 AH |
1384 | length = build_decl (input_location, |
1385 | VAR_DECL, create_tmp_var_name (sym->name), | |
910450c1 | 1386 | gfc_charlen_type_node); |
c2255bc4 AH |
1387 | addr = build_decl (input_location, |
1388 | VAR_DECL, create_tmp_var_name (sym->name), | |
910450c1 FW |
1389 | pvoid_type_node); |
1390 | gfc_finish_var_decl (length, sym); | |
1391 | gfc_finish_var_decl (addr, sym); | |
1392 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1393 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1394 | target label's address. Otherwise, value is the length of a format string | |
1395 | and ASSIGN_ADDR is its address. */ | |
1396 | if (TREE_STATIC (length)) | |
df09d1d5 | 1397 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
910450c1 FW |
1398 | else |
1399 | gfc_defer_symbol_init (sym); | |
1400 | ||
1401 | GFC_DECL_STRING_LEN (decl) = length; | |
1402 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1403 | } | |
6de9cd9a | 1404 | |
08a6b8e0 TB |
1405 | |
1406 | static tree | |
1407 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1408 | { | |
1409 | unsigned id; | |
1410 | tree attr; | |
1411 | ||
1412 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1413 | if (sym_attr.ext_attr & (1 << id)) | |
1414 | { | |
1415 | attr = build_tree_list ( | |
1416 | get_identifier (ext_attr_list[id].middle_end_name), | |
1417 | NULL_TREE); | |
1418 | list = chainon (list, attr); | |
1419 | } | |
1420 | ||
b4c3a85b JJ |
1421 | if (sym_attr.omp_declare_target_link) |
1422 | list = tree_cons (get_identifier ("omp declare target link"), | |
1423 | NULL_TREE, list); | |
1424 | else if (sym_attr.omp_declare_target) | |
f014c653 JJ |
1425 | list = tree_cons (get_identifier ("omp declare target"), |
1426 | NULL_TREE, list); | |
1427 | ||
db941d7e CP |
1428 | if (sym_attr.oacc_function) |
1429 | { | |
1430 | tree dims = NULL_TREE; | |
1431 | int ix; | |
1432 | int level = sym_attr.oacc_function - 1; | |
1433 | ||
1434 | for (ix = GOMP_DIM_MAX; ix--;) | |
1435 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1436 | integer_zero_node, dims); | |
1437 | ||
1438 | list = tree_cons (get_identifier ("oacc function"), | |
1439 | dims, list); | |
1440 | } | |
1441 | ||
08a6b8e0 TB |
1442 | return list; |
1443 | } | |
1444 | ||
1445 | ||
1d0134b3 JW |
1446 | static void build_function_decl (gfc_symbol * sym, bool global); |
1447 | ||
1448 | ||
6de9cd9a DN |
1449 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1450 | exist. */ | |
1451 | ||
1452 | tree | |
1453 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1454 | { | |
1455 | tree decl; | |
1456 | tree length = NULL_TREE; | |
08a6b8e0 | 1457 | tree attributes; |
6de9cd9a | 1458 | int byref; |
be1f1ed9 | 1459 | bool intrinsic_array_parameter = false; |
431e4685 | 1460 | bool fun_or_res; |
6de9cd9a | 1461 | |
61321991 | 1462 | gcc_assert (sym->attr.referenced |
29be7510 JW |
1463 | || sym->attr.flavor == FL_PROCEDURE |
1464 | || sym->attr.use_assoc | |
4668d6f9 | 1465 | || sym->attr.used_in_submodule |
29be7510 JW |
1466 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1467 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1468 | && sym->backend_decl)); | |
6de9cd9a | 1469 | |
f64edc8b | 1470 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
6de9cd9a DN |
1471 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1472 | else | |
1473 | byref = 0; | |
1474 | ||
eece1eb9 PT |
1475 | /* Make sure that the vtab for the declared type is completed. */ |
1476 | if (sym->ts.type == BT_CLASS) | |
1477 | { | |
7a08eda1 | 1478 | gfc_component *c = CLASS_DATA (sym); |
eece1eb9 | 1479 | if (!c->ts.u.derived->backend_decl) |
58eba515 JW |
1480 | { |
1481 | gfc_find_derived_vtab (c->ts.u.derived); | |
1482 | gfc_get_derived_type (sym->ts.u.derived); | |
1483 | } | |
eece1eb9 PT |
1484 | } |
1485 | ||
5bab4c96 PT |
1486 | /* PDT parameterized array components and string_lengths must have the |
1487 | 'len' parameters substituted for the expressions appearing in the | |
1488 | declaration of the entity and memory allocated/deallocated. */ | |
1489 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1490 | && sym->param_list != NULL | |
1491 | && !(sym->attr.host_assoc || sym->attr.use_assoc || sym->attr.dummy)) | |
1492 | gfc_defer_symbol_init (sym); | |
1493 | ||
1494 | /* Dummy PDT 'len' parameters should be checked when they are explicit. */ | |
1495 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1496 | && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) | |
1497 | && sym->param_list != NULL | |
1498 | && sym->attr.dummy) | |
1499 | gfc_defer_symbol_init (sym); | |
1500 | ||
8d51f26f PT |
1501 | /* All deferred character length procedures need to retain the backend |
1502 | decl, which is a pointer to the character length in the caller's | |
1503 | namespace and to declare a local character length. */ | |
1504 | if (!byref && sym->attr.function | |
1505 | && sym->ts.type == BT_CHARACTER | |
1506 | && sym->ts.deferred | |
1507 | && sym->ts.u.cl->passed_length == NULL | |
1508 | && sym->ts.u.cl->backend_decl | |
1509 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1510 | { | |
1511 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
afbc5ae8 PT |
1512 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1513 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
8d51f26f PT |
1514 | } |
1515 | ||
431e4685 TB |
1516 | fun_or_res = byref && (sym->attr.result |
1517 | || (sym->attr.function && sym->ts.deferred)); | |
1518 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
6de9cd9a DN |
1519 | { |
1520 | /* Return via extra parameter. */ | |
1521 | if (sym->attr.result && byref | |
1522 | && !sym->backend_decl) | |
1523 | { | |
1524 | sym->backend_decl = | |
1525 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
d198b59a JJ |
1526 | /* For entry master function skip over the __entry |
1527 | argument. */ | |
1528 | if (sym->ns->proc_name->attr.entry_master) | |
910ad8de | 1529 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
6de9cd9a DN |
1530 | } |
1531 | ||
1532 | /* Dummy variables should already have been created. */ | |
6e45f57b | 1533 | gcc_assert (sym->backend_decl); |
6de9cd9a | 1534 | |
ff3598bc PT |
1535 | if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS) |
1536 | GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1; | |
1537 | ||
6de9cd9a DN |
1538 | /* Create a character length variable. */ |
1539 | if (sym->ts.type == BT_CHARACTER) | |
1540 | { | |
8d51f26f PT |
1541 | /* For a deferred dummy, make a new string length variable. */ |
1542 | if (sym->ts.deferred | |
1543 | && | |
1544 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1545 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1546 | ||
adbfb3f8 | 1547 | if (sym->ts.deferred && byref) |
8d51f26f | 1548 | { |
adbfb3f8 AV |
1549 | /* The string length of a deferred char array is stored in the |
1550 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1551 | marked as a result. Exempt this variable from generating a | |
1552 | temporary for it. */ | |
1553 | if (sym->attr.result) | |
1554 | { | |
1555 | /* We need to insert a indirect ref for param decls. */ | |
1556 | if (sym->ts.u.cl->backend_decl | |
1557 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
afbc5ae8 PT |
1558 | { |
1559 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
b62df3bf | 1560 | sym->ts.u.cl->backend_decl = |
adbfb3f8 | 1561 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
b62df3bf | 1562 | } |
afbc5ae8 | 1563 | } |
adbfb3f8 AV |
1564 | /* For all other parameters make sure, that they are copied so |
1565 | that the value and any modifications are local to the routine | |
1566 | by generating a temporary variable. */ | |
1567 | else if (sym->attr.function | |
1568 | && sym->ts.u.cl->passed_length == NULL | |
1569 | && sym->ts.u.cl->backend_decl) | |
1570 | { | |
1571 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
afbc5ae8 PT |
1572 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1573 | sym->ts.u.cl->backend_decl | |
1574 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1575 | else | |
b62df3bf | 1576 | sym->ts.u.cl->backend_decl = NULL_TREE; |
adbfb3f8 | 1577 | } |
8d51f26f PT |
1578 | } |
1579 | ||
bc21d315 | 1580 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
417ab240 JJ |
1581 | length = gfc_create_string_length (sym); |
1582 | else | |
bc21d315 | 1583 | length = sym->ts.u.cl->backend_decl; |
d168c883 | 1584 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
6de9cd9a | 1585 | { |
3e978d30 PT |
1586 | /* Add the string length to the same context as the symbol. */ |
1587 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1588 | gfc_add_decl_to_function (length); | |
1589 | else | |
1590 | gfc_add_decl_to_parent_function (length); | |
1591 | ||
1592 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1593 | DECL_CONTEXT (length)); | |
1594 | ||
417ab240 | 1595 | gfc_defer_symbol_init (sym); |
a41baa64 | 1596 | } |
6de9cd9a DN |
1597 | } |
1598 | ||
1599 | /* Use a copy of the descriptor for dummy arrays. */ | |
4ca9939b TB |
1600 | if ((sym->attr.dimension || sym->attr.codimension) |
1601 | && !TREE_USED (sym->backend_decl)) | |
6de9cd9a | 1602 | { |
3e978d30 PT |
1603 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1604 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1605 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1606 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1607 | sym->backend_decl = decl; | |
6de9cd9a DN |
1608 | } |
1609 | ||
f3b0bb7a AV |
1610 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1611 | some caller is expecting an expression to apply the component refs to. | |
1612 | Therefore the descriptor is only created and stored in | |
1613 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1614 | responsible to extract it from there, when the descriptor is | |
1615 | desired. */ | |
1616 | if (IS_CLASS_ARRAY (sym) | |
1617 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1618 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1619 | { | |
1620 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1621 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1622 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1623 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1624 | sym->backend_decl = decl; | |
1625 | } | |
1626 | ||
6de9cd9a | 1627 | TREE_USED (sym->backend_decl) = 1; |
910450c1 FW |
1628 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1629 | { | |
1630 | gfc_add_assign_aux_vars (sym); | |
1631 | } | |
77f2a970 | 1632 | |
f3b0bb7a | 1633 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
77f2a970 JJ |
1634 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1635 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1636 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1637 | gfc_nonlocal_dummy_array_decl (sym); | |
1638 | ||
c49ea23d PT |
1639 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1640 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1641 | ||
c49ea23d | 1642 | return sym->backend_decl; |
6de9cd9a DN |
1643 | } |
1644 | ||
1645 | if (sym->backend_decl) | |
1646 | return sym->backend_decl; | |
1647 | ||
4ed5664e TB |
1648 | /* Special case for array-valued named constants from intrinsic |
1649 | procedures; those are inlined. */ | |
8b198102 FXC |
1650 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1651 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1652 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
4ed5664e TB |
1653 | intrinsic_array_parameter = true; |
1654 | ||
9fa52231 | 1655 | /* If use associated compilation, use the module |
43afc047 | 1656 | declaration. */ |
9fa52231 TB |
1657 | if ((sym->attr.flavor == FL_VARIABLE |
1658 | || sym->attr.flavor == FL_PARAMETER) | |
cded7919 | 1659 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
9fa52231 TB |
1660 | && !intrinsic_array_parameter |
1661 | && sym->module | |
1662 | && gfc_get_module_backend_decl (sym)) | |
c49ea23d PT |
1663 | { |
1664 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1665 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1666 | return sym->backend_decl; | |
1667 | } | |
3af8d8cb | 1668 | |
6de9cd9a DN |
1669 | if (sym->attr.flavor == FL_PROCEDURE) |
1670 | { | |
ab1668f6 | 1671 | /* Catch functions. Only used for actual parameters, |
1d0134b3 | 1672 | procedure pointers and procptr initialization targets. */ |
ee077fcb PT |
1673 | if (sym->attr.use_assoc |
1674 | || sym->attr.used_in_submodule | |
1675 | || sym->attr.intrinsic | |
ab1668f6 | 1676 | || sym->attr.if_source != IFSRC_DECL) |
1d0134b3 JW |
1677 | { |
1678 | decl = gfc_get_extern_function_decl (sym); | |
1679 | gfc_set_decl_location (decl, &sym->declared_at); | |
1680 | } | |
1681 | else | |
1682 | { | |
1683 | if (!sym->backend_decl) | |
1684 | build_function_decl (sym, false); | |
1685 | decl = sym->backend_decl; | |
1686 | } | |
6de9cd9a DN |
1687 | return decl; |
1688 | } | |
1689 | ||
1690 | if (sym->attr.intrinsic) | |
17d5d49f | 1691 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
6de9cd9a DN |
1692 | |
1693 | /* Create string length decl first so that they can be used in the | |
e207c522 PT |
1694 | type declaration. For associate names, the target character |
1695 | length is used. Set 'length' to a constant so that if the | |
345bd7eb | 1696 | string length is a variable, it is not finished a second time. */ |
6de9cd9a | 1697 | if (sym->ts.type == BT_CHARACTER) |
e207c522 | 1698 | { |
707905d0 PT |
1699 | if (sym->attr.associate_var |
1700 | && sym->ts.deferred | |
1701 | && sym->assoc && sym->assoc->target | |
1702 | && ((sym->assoc->target->expr_type == EXPR_VARIABLE | |
1703 | && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER) | |
1704 | || sym->assoc->target->expr_type == EXPR_FUNCTION)) | |
1705 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1706 | ||
e207c522 PT |
1707 | if (sym->attr.associate_var |
1708 | && sym->ts.u.cl->backend_decl | |
d168c883 | 1709 | && VAR_P (sym->ts.u.cl->backend_decl)) |
e207c522 PT |
1710 | length = gfc_index_zero_node; |
1711 | else | |
1712 | length = gfc_create_string_length (sym); | |
1713 | } | |
6de9cd9a DN |
1714 | |
1715 | /* Create the decl for the variable. */ | |
c2255bc4 AH |
1716 | decl = build_decl (sym->declared_at.lb->location, |
1717 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
c8cc8542 | 1718 | |
43ce5e52 FXC |
1719 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1720 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1721 | decl_attributes (&decl, attributes, 0); | |
1722 | ||
f8d0aee5 | 1723 | /* Symbols from modules should have their assembler names mangled. |
6de9cd9a DN |
1724 | This is done here rather than in gfc_finish_var_decl because it |
1725 | is different for string length variables. */ | |
345bd7eb | 1726 | if (sym->module || sym->fn_result_spec) |
a64f5186 | 1727 | { |
43ce5e52 | 1728 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
be1f1ed9 | 1729 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
a64f5186 JJ |
1730 | DECL_IGNORED_P (decl) = 1; |
1731 | } | |
6de9cd9a | 1732 | |
b3996898 JJ |
1733 | if (sym->attr.select_type_temporary) |
1734 | { | |
1735 | DECL_ARTIFICIAL (decl) = 1; | |
1736 | DECL_IGNORED_P (decl) = 1; | |
1737 | } | |
1738 | ||
4ca9939b | 1739 | if (sym->attr.dimension || sym->attr.codimension) |
6de9cd9a DN |
1740 | { |
1741 | /* Create variables to hold the non-constant bits of array info. */ | |
1742 | gfc_build_qualified_array (decl, sym); | |
1743 | ||
fe4e525c TB |
1744 | if (sym->attr.contiguous |
1745 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
6de9cd9a DN |
1746 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1747 | } | |
1748 | ||
1517fd57 | 1749 | /* Remember this variable for allocation/cleanup. */ |
9f3761c5 | 1750 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
1517fd57 | 1751 | || (sym->ts.type == BT_CLASS && |
7a08eda1 JW |
1752 | (CLASS_DATA (sym)->attr.dimension |
1753 | || CLASS_DATA (sym)->attr.allocatable)) | |
ea8b72e6 TB |
1754 | || (sym->ts.type == BT_DERIVED |
1755 | && (sym->ts.u.derived->attr.alloc_comp | |
1756 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1757 | && !sym->ns->proc_name->attr.is_main_program | |
1758 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
1517fd57 JW |
1759 | /* This applies a derived type default initializer. */ |
1760 | || (sym->ts.type == BT_DERIVED | |
1761 | && sym->attr.save == SAVE_NONE | |
1762 | && !sym->attr.data | |
1763 | && !sym->attr.allocatable | |
1764 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
be1f1ed9 | 1765 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
b7b184a8 | 1766 | gfc_defer_symbol_init (sym); |
5046aff5 | 1767 | |
8ae261c0 JJ |
1768 | /* Associate names can use the hidden string length variable |
1769 | of their associated target. */ | |
1770 | if (sym->ts.type == BT_CHARACTER | |
1771 | && TREE_CODE (length) != INTEGER_CST) | |
1772 | { | |
1773 | gfc_finish_var_decl (length, sym); | |
1774 | gcc_assert (!sym->value); | |
1775 | } | |
1776 | ||
6de9cd9a DN |
1777 | gfc_finish_var_decl (decl, sym); |
1778 | ||
597073ac | 1779 | if (sym->ts.type == BT_CHARACTER) |
8ae261c0 JJ |
1780 | /* Character variables need special handling. */ |
1781 | gfc_allocate_lang_decl (decl); | |
1d6b7f39 | 1782 | |
ff3598bc PT |
1783 | if (sym->assoc && sym->attr.subref_array_pointer) |
1784 | sym->attr.pointer = 1; | |
1785 | ||
1786 | if (sym->attr.pointer && sym->attr.dimension | |
1787 | && !sym->ts.deferred | |
1788 | && !(sym->attr.select_type_temporary | |
1789 | && !sym->attr.subref_array_pointer)) | |
1790 | GFC_DECL_PTR_ARRAY_P (decl) = 1; | |
1d6b7f39 | 1791 | |
c49ea23d | 1792 | if (sym->ts.type == BT_CLASS) |
ff3598bc | 1793 | GFC_DECL_CLASS(decl) = 1; |
c49ea23d | 1794 | |
6de9cd9a DN |
1795 | sym->backend_decl = decl; |
1796 | ||
910450c1 | 1797 | if (sym->attr.assign) |
6c0e51c4 | 1798 | gfc_add_assign_aux_vars (sym); |
910450c1 | 1799 | |
be1f1ed9 TB |
1800 | if (intrinsic_array_parameter) |
1801 | { | |
1802 | TREE_STATIC (decl) = 1; | |
1803 | DECL_EXTERNAL (decl) = 0; | |
1804 | } | |
1805 | ||
1806 | if (TREE_STATIC (decl) | |
1807 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
2b56d6a4 | 1808 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
43068916 | 1809 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
b8ff4e88 | 1810 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
f19626cf | 1811 | && (flag_coarray != GFC_FCOARRAY_LIB |
276515e6 PT |
1812 | || !sym->attr.codimension || sym->attr.allocatable) |
1813 | && !(sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
1814 | && !(sym->ts.type == BT_CLASS | |
1815 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type)) | |
2b56d6a4 TB |
1816 | { |
1817 | /* Add static initializer. For procedures, it is only needed if | |
1818 | SAVE is specified otherwise they need to be reinitialized | |
1819 | every time the procedure is entered. The TREE_STATIC is | |
1820 | in this case due to -fmax-stack-var-size=. */ | |
2cc6320d | 1821 | |
597073ac | 1822 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2cc6320d JW |
1823 | TREE_TYPE (decl), sym->attr.dimension |
1824 | || (sym->attr.codimension | |
1825 | && sym->attr.allocatable), | |
1826 | sym->attr.pointer || sym->attr.allocatable | |
1827 | || sym->ts.type == BT_CLASS, | |
1828 | sym->attr.proc_pointer); | |
597073ac PB |
1829 | } |
1830 | ||
77f2a970 JJ |
1831 | if (!TREE_STATIC (decl) |
1832 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1833 | && !sym->attr.pointer | |
1834 | && !sym->attr.allocatable | |
b3996898 JJ |
1835 | && !sym->attr.proc_pointer |
1836 | && !sym->attr.select_type_temporary) | |
77f2a970 JJ |
1837 | DECL_BY_REFERENCE (decl) = 1; |
1838 | ||
92d28cbb JJ |
1839 | if (sym->attr.associate_var) |
1840 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1841 | ||
cf651ca2 TB |
1842 | if (sym->attr.vtab |
1843 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
755634e6 | 1844 | TREE_READONLY (decl) = 1; |
cf651ca2 | 1845 | |
6de9cd9a DN |
1846 | return decl; |
1847 | } | |
1848 | ||
1849 | ||
7b5b57b7 PB |
1850 | /* Substitute a temporary variable in place of the real one. */ |
1851 | ||
1852 | void | |
1853 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1854 | { | |
1855 | save->attr = sym->attr; | |
1856 | save->decl = sym->backend_decl; | |
1857 | ||
1858 | gfc_clear_attr (&sym->attr); | |
1859 | sym->attr.referenced = 1; | |
1860 | sym->attr.flavor = FL_VARIABLE; | |
1861 | ||
1862 | sym->backend_decl = decl; | |
1863 | } | |
1864 | ||
1865 | ||
1866 | /* Restore the original variable. */ | |
1867 | ||
1868 | void | |
1869 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1870 | { | |
1871 | sym->attr = save->attr; | |
1872 | sym->backend_decl = save->decl; | |
1873 | } | |
1874 | ||
1875 | ||
8fb74da4 JW |
1876 | /* Declare a procedure pointer. */ |
1877 | ||
1878 | static tree | |
1879 | get_proc_pointer_decl (gfc_symbol *sym) | |
1880 | { | |
1881 | tree decl; | |
08a6b8e0 | 1882 | tree attributes; |
8fb74da4 JW |
1883 | |
1884 | decl = sym->backend_decl; | |
1885 | if (decl) | |
1886 | return decl; | |
1887 | ||
c2255bc4 AH |
1888 | decl = build_decl (input_location, |
1889 | VAR_DECL, get_identifier (sym->name), | |
8fb74da4 JW |
1890 | build_pointer_type (gfc_get_function_type (sym))); |
1891 | ||
5e4404b8 JW |
1892 | if (sym->module) |
1893 | { | |
1894 | /* Apply name mangling. */ | |
1895 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1896 | if (sym->attr.use_assoc) | |
1897 | DECL_IGNORED_P (decl) = 1; | |
1898 | } | |
8b704316 | 1899 | |
06c7153f TB |
1900 | if ((sym->ns->proc_name |
1901 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
8fb74da4 JW |
1902 | || sym->attr.contained) |
1903 | gfc_add_decl_to_function (decl); | |
6e0d2de7 | 1904 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
8fb74da4 JW |
1905 | gfc_add_decl_to_parent_function (decl); |
1906 | ||
1907 | sym->backend_decl = decl; | |
1908 | ||
6e0d2de7 JW |
1909 | /* If a variable is USE associated, it's always external. */ |
1910 | if (sym->attr.use_assoc) | |
1911 | { | |
1912 | DECL_EXTERNAL (decl) = 1; | |
1913 | TREE_PUBLIC (decl) = 1; | |
1914 | } | |
1915 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1916 | { | |
1917 | /* This is the declaration of a module variable. */ | |
a56ea54a PT |
1918 | TREE_PUBLIC (decl) = 1; |
1919 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1920 | { | |
1921 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1922 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1923 | } | |
6e0d2de7 JW |
1924 | TREE_STATIC (decl) = 1; |
1925 | } | |
1926 | ||
8fb74da4 JW |
1927 | if (!sym->attr.use_assoc |
1928 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1929 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1930 | TREE_STATIC (decl) = 1; | |
1931 | ||
1932 | if (TREE_STATIC (decl) && sym->value) | |
1933 | { | |
1934 | /* Add static initializer. */ | |
1935 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
1d0134b3 JW |
1936 | TREE_TYPE (decl), |
1937 | sym->attr.dimension, | |
1938 | false, true); | |
8fb74da4 JW |
1939 | } |
1940 | ||
a6c975bd JJ |
1941 | /* Handle threadprivate procedure pointers. */ |
1942 | if (sym->attr.threadprivate | |
1943 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
56363ffd | 1944 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
a6c975bd | 1945 | |
08a6b8e0 TB |
1946 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1947 | decl_attributes (&decl, attributes, 0); | |
1948 | ||
8fb74da4 JW |
1949 | return decl; |
1950 | } | |
1951 | ||
1952 | ||
6de9cd9a DN |
1953 | /* Get a basic decl for an external function. */ |
1954 | ||
1955 | tree | |
1956 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1957 | { | |
1958 | tree type; | |
1959 | tree fndecl; | |
08a6b8e0 | 1960 | tree attributes; |
6de9cd9a DN |
1961 | gfc_expr e; |
1962 | gfc_intrinsic_sym *isym; | |
1963 | gfc_expr argexpr; | |
e6472bce | 1964 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
6de9cd9a DN |
1965 | tree name; |
1966 | tree mangled_name; | |
71a7778c | 1967 | gfc_gsymbol *gsym; |
6de9cd9a DN |
1968 | |
1969 | if (sym->backend_decl) | |
1970 | return sym->backend_decl; | |
1971 | ||
3d79abbd PB |
1972 | /* We should never be creating external decls for alternate entry points. |
1973 | The procedure may be an alternate entry point, but we don't want/need | |
1974 | to know that. */ | |
6e45f57b | 1975 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
3d79abbd | 1976 | |
8fb74da4 JW |
1977 | if (sym->attr.proc_pointer) |
1978 | return get_proc_pointer_decl (sym); | |
1979 | ||
71a7778c PT |
1980 | /* See if this is an external procedure from the same file. If so, |
1981 | return the backend_decl. */ | |
f11de7c5 TB |
1982 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1983 | ? sym->binding_label : sym->name); | |
71a7778c | 1984 | |
77f8682b TB |
1985 | if (gsym && !gsym->defined) |
1986 | gsym = NULL; | |
1987 | ||
1988 | /* This can happen because of C binding. */ | |
1989 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1990 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1991 | goto module_sym; | |
1992 | ||
9fa52231 TB |
1993 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1994 | && !sym->backend_decl | |
1995 | && gsym && gsym->ns | |
1996 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1997 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
71a7778c | 1998 | { |
fb55ca75 TB |
1999 | if (!gsym->ns->proc_name->backend_decl) |
2000 | { | |
2001 | /* By construction, the external function cannot be | |
2002 | a contained procedure. */ | |
2003 | locus old_loc; | |
fb55ca75 | 2004 | |
363aab21 | 2005 | gfc_save_backend_locus (&old_loc); |
af16bc76 | 2006 | push_cfun (NULL); |
fb55ca75 TB |
2007 | |
2008 | gfc_create_function_decl (gsym->ns, true); | |
2009 | ||
2010 | pop_cfun (); | |
363aab21 | 2011 | gfc_restore_backend_locus (&old_loc); |
fb55ca75 TB |
2012 | } |
2013 | ||
71a7778c PT |
2014 | /* If the namespace has entries, the proc_name is the |
2015 | entry master. Find the entry and use its backend_decl. | |
2016 | otherwise, use the proc_name backend_decl. */ | |
2017 | if (gsym->ns->entries) | |
2018 | { | |
2019 | gfc_entry_list *entry = gsym->ns->entries; | |
2020 | ||
2021 | for (; entry; entry = entry->next) | |
2022 | { | |
2023 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
2024 | { | |
2025 | sym->backend_decl = entry->sym->backend_decl; | |
2026 | break; | |
2027 | } | |
2028 | } | |
2029 | } | |
2030 | else | |
6a018495 | 2031 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
71a7778c PT |
2032 | |
2033 | if (sym->backend_decl) | |
6a018495 TB |
2034 | { |
2035 | /* Avoid problems of double deallocation of the backend declaration | |
2036 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2037 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2038 | sym->attr.use_assoc = 0; | |
2039 | ||
2040 | return sym->backend_decl; | |
2041 | } | |
71a7778c PT |
2042 | } |
2043 | ||
3af8d8cb PT |
2044 | /* See if this is a module procedure from the same file. If so, |
2045 | return the backend_decl. */ | |
2046 | if (sym->module) | |
2047 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2048 | ||
77f8682b TB |
2049 | module_sym: |
2050 | if (gsym && gsym->ns | |
2051 | && (gsym->type == GSYM_MODULE | |
2052 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
3af8d8cb PT |
2053 | { |
2054 | gfc_symbol *s; | |
2055 | ||
2056 | s = NULL; | |
77f8682b TB |
2057 | if (gsym->type == GSYM_MODULE) |
2058 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2059 | else | |
2060 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2061 | ||
3af8d8cb PT |
2062 | if (s && s->backend_decl) |
2063 | { | |
f29bda83 TB |
2064 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2065 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2066 | true); | |
2067 | else if (sym->ts.type == BT_CHARACTER) | |
2068 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
3af8d8cb PT |
2069 | sym->backend_decl = s->backend_decl; |
2070 | return sym->backend_decl; | |
2071 | } | |
2072 | } | |
2073 | ||
6de9cd9a DN |
2074 | if (sym->attr.intrinsic) |
2075 | { | |
2076 | /* Call the resolution function to get the actual name. This is | |
2077 | a nasty hack which relies on the resolution functions only looking | |
2078 | at the first argument. We pass NULL for the second argument | |
2079 | otherwise things like AINT get confused. */ | |
2080 | isym = gfc_find_function (sym->name); | |
6e45f57b | 2081 | gcc_assert (isym->resolve.f0 != NULL); |
6de9cd9a DN |
2082 | |
2083 | memset (&e, 0, sizeof (e)); | |
2084 | e.expr_type = EXPR_FUNCTION; | |
2085 | ||
2086 | memset (&argexpr, 0, sizeof (argexpr)); | |
6e45f57b | 2087 | gcc_assert (isym->formal); |
6de9cd9a DN |
2088 | argexpr.ts = isym->formal->ts; |
2089 | ||
2090 | if (isym->formal->next == NULL) | |
2091 | isym->resolve.f1 (&e, &argexpr); | |
2092 | else | |
2093 | { | |
0e7e7e6e FXC |
2094 | if (isym->formal->next->next == NULL) |
2095 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2096 | else | |
2097 | { | |
5cda5098 FXC |
2098 | if (isym->formal->next->next->next == NULL) |
2099 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2100 | else | |
2101 | { | |
2102 | /* All specific intrinsics take less than 5 arguments. */ | |
2103 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2104 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2105 | } | |
0e7e7e6e | 2106 | } |
6de9cd9a | 2107 | } |
973ff4c0 | 2108 | |
c61819ff | 2109 | if (flag_f2c |
973ff4c0 TS |
2110 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2111 | || e.ts.type == BT_COMPLEX)) | |
2112 | { | |
2113 | /* Specific which needs a different implementation if f2c | |
2114 | calling conventions are used. */ | |
e6472bce | 2115 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
973ff4c0 TS |
2116 | } |
2117 | else | |
e6472bce | 2118 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
973ff4c0 | 2119 | |
6de9cd9a DN |
2120 | name = get_identifier (s); |
2121 | mangled_name = name; | |
2122 | } | |
2123 | else | |
2124 | { | |
2125 | name = gfc_sym_identifier (sym); | |
2126 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2127 | } | |
2128 | ||
2129 | type = gfc_get_function_type (sym); | |
c2255bc4 AH |
2130 | fndecl = build_decl (input_location, |
2131 | FUNCTION_DECL, name, type); | |
6de9cd9a | 2132 | |
384f586a KT |
2133 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2134 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
dd5a833e | 2135 | the opposite of declaring a function as static in C). */ |
384f586a KT |
2136 | DECL_EXTERNAL (fndecl) = 1; |
2137 | TREE_PUBLIC (fndecl) = 1; | |
2138 | ||
43ce5e52 FXC |
2139 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2140 | decl_attributes (&fndecl, attributes, 0); | |
2141 | ||
2142 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
6de9cd9a DN |
2143 | |
2144 | /* Set the context of this decl. */ | |
2145 | if (0 && sym->ns && sym->ns->proc_name) | |
2146 | { | |
2147 | /* TODO: Add external decls to the appropriate scope. */ | |
2148 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2149 | } | |
2150 | else | |
2151 | { | |
f8d0aee5 | 2152 | /* Global declaration, e.g. intrinsic subroutine. */ |
6de9cd9a DN |
2153 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2154 | } | |
2155 | ||
6de9cd9a DN |
2156 | /* Set attributes for PURE functions. A call to PURE function in the |
2157 | Fortran 95 sense is both pure and without side effects in the C | |
2158 | sense. */ | |
033418dc | 2159 | if (sym->attr.pure || sym->attr.implicit_pure) |
6de9cd9a | 2160 | { |
cf013e9f | 2161 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
becfd6e5 | 2162 | DECL_PURE_P (fndecl) = 1; |
b7e6a6b3 TS |
2163 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2164 | parameters and don't use alternate returns (is this | |
2165 | allowed?). In that case, calls to them are meaningless, and | |
3d79abbd | 2166 | can be optimized away. See also in build_function_decl(). */ |
b7e6a6b3 | 2167 | TREE_SIDE_EFFECTS (fndecl) = 0; |
6de9cd9a DN |
2168 | } |
2169 | ||
fe58e076 TK |
2170 | /* Mark non-returning functions. */ |
2171 | if (sym->attr.noreturn) | |
2172 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2173 | ||
6de9cd9a DN |
2174 | sym->backend_decl = fndecl; |
2175 | ||
2176 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2177 | pushdecl_top_level (fndecl); | |
2178 | ||
dd2fc525 JJ |
2179 | if (sym->formal_ns |
2180 | && sym->formal_ns->proc_name == sym | |
2181 | && sym->formal_ns->omp_declare_simd) | |
2182 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2183 | ||
6de9cd9a DN |
2184 | return fndecl; |
2185 | } | |
2186 | ||
2187 | ||
2188 | /* Create a declaration for a procedure. For external functions (in the C | |
3d79abbd PB |
2189 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2190 | a master function with alternate entry points. */ | |
6de9cd9a | 2191 | |
3d79abbd | 2192 | static void |
fb55ca75 | 2193 | build_function_decl (gfc_symbol * sym, bool global) |
6de9cd9a | 2194 | { |
08a6b8e0 | 2195 | tree fndecl, type, attributes; |
6de9cd9a | 2196 | symbol_attribute attr; |
3d79abbd | 2197 | tree result_decl; |
6de9cd9a DN |
2198 | gfc_formal_arglist *f; |
2199 | ||
70112e2a PT |
2200 | bool module_procedure = sym->attr.module_procedure |
2201 | && sym->ns | |
2202 | && sym->ns->proc_name | |
2203 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2204 | ||
2205 | gcc_assert (!sym->attr.external || module_procedure); | |
6de9cd9a | 2206 | |
1d0134b3 JW |
2207 | if (sym->backend_decl) |
2208 | return; | |
2209 | ||
c8cc8542 PB |
2210 | /* Set the line and filename. sym->declared_at seems to point to the |
2211 | last statement for subroutines, but it'll do for now. */ | |
2212 | gfc_set_backend_locus (&sym->declared_at); | |
2213 | ||
6de9cd9a | 2214 | /* Allow only one nesting level. Allow public declarations. */ |
6e45f57b | 2215 | gcc_assert (current_function_decl == NULL_TREE |
e5b16755 RG |
2216 | || DECL_FILE_SCOPE_P (current_function_decl) |
2217 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2218 | == NAMESPACE_DECL)); | |
6de9cd9a DN |
2219 | |
2220 | type = gfc_get_function_type (sym); | |
c2255bc4 AH |
2221 | fndecl = build_decl (input_location, |
2222 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
6de9cd9a | 2223 | |
43ce5e52 FXC |
2224 | attr = sym->attr; |
2225 | ||
384f586a KT |
2226 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2227 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
dd5a833e | 2228 | the opposite of declaring a function as static in C). */ |
384f586a KT |
2229 | DECL_EXTERNAL (fndecl) = 0; |
2230 | ||
58341a42 TB |
2231 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2232 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2233 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
c61819ff | 2234 | && flag_module_private))) |
58341a42 TB |
2235 | sym->attr.access = ACCESS_PRIVATE; |
2236 | ||
384f586a | 2237 | if (!current_function_decl |
5af6fa0b | 2238 | && !sym->attr.entry_master && !sym->attr.is_main_program |
cdd244b8 TB |
2239 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2240 | || sym->attr.public_used)) | |
384f586a KT |
2241 | TREE_PUBLIC (fndecl) = 1; |
2242 | ||
29be7510 JW |
2243 | if (sym->attr.referenced || sym->attr.entry_master) |
2244 | TREE_USED (fndecl) = 1; | |
2245 | ||
43ce5e52 FXC |
2246 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2247 | decl_attributes (&fndecl, attributes, 0); | |
2248 | ||
6de9cd9a | 2249 | /* Figure out the return type of the declared function, and build a |
f8d0aee5 | 2250 | RESULT_DECL for it. If this is a subroutine with alternate |
6de9cd9a | 2251 | returns, build a RESULT_DECL for it. */ |
6de9cd9a DN |
2252 | result_decl = NULL_TREE; |
2253 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2254 | if (attr.function) | |
2255 | { | |
2256 | if (gfc_return_by_reference (sym)) | |
2257 | type = void_type_node; | |
2258 | else | |
2259 | { | |
2260 | if (sym->result != sym) | |
2261 | result_decl = gfc_sym_identifier (sym->result); | |
2262 | ||
2263 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2264 | } | |
2265 | } | |
2266 | else | |
2267 | { | |
2268 | /* Look for alternate return placeholders. */ | |
2269 | int has_alternate_returns = 0; | |
4cbc9039 | 2270 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
6de9cd9a DN |
2271 | { |
2272 | if (f->sym == NULL) | |
2273 | { | |
2274 | has_alternate_returns = 1; | |
2275 | break; | |
2276 | } | |
2277 | } | |
2278 | ||
2279 | if (has_alternate_returns) | |
2280 | type = integer_type_node; | |
2281 | else | |
2282 | type = void_type_node; | |
2283 | } | |
2284 | ||
c2255bc4 AH |
2285 | result_decl = build_decl (input_location, |
2286 | RESULT_DECL, result_decl, type); | |
b785f485 RH |
2287 | DECL_ARTIFICIAL (result_decl) = 1; |
2288 | DECL_IGNORED_P (result_decl) = 1; | |
6de9cd9a DN |
2289 | DECL_CONTEXT (result_decl) = fndecl; |
2290 | DECL_RESULT (fndecl) = result_decl; | |
2291 | ||
2292 | /* Don't call layout_decl for a RESULT_DECL. | |
f8d0aee5 | 2293 | layout_decl (result_decl, 0); */ |
6de9cd9a | 2294 | |
6de9cd9a | 2295 | /* TREE_STATIC means the function body is defined here. */ |
1d754240 | 2296 | TREE_STATIC (fndecl) = 1; |
6de9cd9a | 2297 | |
f8d0aee5 | 2298 | /* Set attributes for PURE functions. A call to a PURE function in the |
6de9cd9a DN |
2299 | Fortran 95 sense is both pure and without side effects in the C |
2300 | sense. */ | |
033418dc | 2301 | if (attr.pure || attr.implicit_pure) |
6de9cd9a | 2302 | { |
b7e6a6b3 | 2303 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
86bf520d | 2304 | including an alternate return. In that case it can also be |
1f2959f0 | 2305 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
a01db3bf | 2306 | if (attr.function && !gfc_return_by_reference (sym)) |
becfd6e5 | 2307 | DECL_PURE_P (fndecl) = 1; |
6de9cd9a DN |
2308 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2309 | } | |
2310 | ||
08a6b8e0 | 2311 | |
6de9cd9a DN |
2312 | /* Layout the function declaration and put it in the binding level |
2313 | of the current function. */ | |
fb55ca75 | 2314 | |
755634e6 | 2315 | if (global) |
fb55ca75 TB |
2316 | pushdecl_top_level (fndecl); |
2317 | else | |
2318 | pushdecl (fndecl); | |
3d79abbd | 2319 | |
e5b16755 RG |
2320 | /* Perform name mangling if this is a top level or module procedure. */ |
2321 | if (current_function_decl == NULL_TREE) | |
2322 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2323 | ||
3d79abbd PB |
2324 | sym->backend_decl = fndecl; |
2325 | } | |
2326 | ||
2327 | ||
2328 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2329 | ||
2330 | static void | |
2331 | create_function_arglist (gfc_symbol * sym) | |
2332 | { | |
2333 | tree fndecl; | |
2334 | gfc_formal_arglist *f; | |
417ab240 JJ |
2335 | tree typelist, hidden_typelist; |
2336 | tree arglist, hidden_arglist; | |
3d79abbd PB |
2337 | tree type; |
2338 | tree parm; | |
2339 | ||
2340 | fndecl = sym->backend_decl; | |
2341 | ||
1d754240 PB |
2342 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2343 | the new FUNCTION_DECL node. */ | |
1d754240 | 2344 | arglist = NULL_TREE; |
417ab240 | 2345 | hidden_arglist = NULL_TREE; |
1d754240 | 2346 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
3d79abbd PB |
2347 | |
2348 | if (sym->attr.entry_master) | |
2349 | { | |
2350 | type = TREE_VALUE (typelist); | |
c2255bc4 AH |
2351 | parm = build_decl (input_location, |
2352 | PARM_DECL, get_identifier ("__entry"), type); | |
8b704316 | 2353 | |
3d79abbd PB |
2354 | DECL_CONTEXT (parm) = fndecl; |
2355 | DECL_ARG_TYPE (parm) = type; | |
2356 | TREE_READONLY (parm) = 1; | |
faf28b3a | 2357 | gfc_finish_decl (parm); |
3e978d30 | 2358 | DECL_ARTIFICIAL (parm) = 1; |
3d79abbd PB |
2359 | |
2360 | arglist = chainon (arglist, parm); | |
2361 | typelist = TREE_CHAIN (typelist); | |
2362 | } | |
2363 | ||
1d754240 | 2364 | if (gfc_return_by_reference (sym)) |
6de9cd9a | 2365 | { |
417ab240 | 2366 | tree type = TREE_VALUE (typelist), length = NULL; |
6de9cd9a | 2367 | |
1d754240 PB |
2368 | if (sym->ts.type == BT_CHARACTER) |
2369 | { | |
1d754240 | 2370 | /* Length of character result. */ |
417ab240 | 2371 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
6de9cd9a | 2372 | |
c2255bc4 AH |
2373 | length = build_decl (input_location, |
2374 | PARM_DECL, | |
1d754240 | 2375 | get_identifier (".__result"), |
417ab240 | 2376 | len_type); |
ce1ff48e PT |
2377 | if (POINTER_TYPE_P (len_type)) |
2378 | { | |
2379 | sym->ts.u.cl->passed_length = length; | |
2380 | TREE_USED (length) = 1; | |
2381 | } | |
2382 | else if (!sym->ts.u.cl->length) | |
1d754240 | 2383 | { |
bc21d315 | 2384 | sym->ts.u.cl->backend_decl = length; |
1d754240 | 2385 | TREE_USED (length) = 1; |
6de9cd9a | 2386 | } |
6e45f57b | 2387 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
1d754240 | 2388 | DECL_CONTEXT (length) = fndecl; |
417ab240 | 2389 | DECL_ARG_TYPE (length) = len_type; |
1d754240 | 2390 | TREE_READONLY (length) = 1; |
ca0e9281 | 2391 | DECL_ARTIFICIAL (length) = 1; |
faf28b3a | 2392 | gfc_finish_decl (length); |
bc21d315 JW |
2393 | if (sym->ts.u.cl->backend_decl == NULL |
2394 | || sym->ts.u.cl->backend_decl == length) | |
417ab240 JJ |
2395 | { |
2396 | gfc_symbol *arg; | |
2397 | tree backend_decl; | |
6de9cd9a | 2398 | |
bc21d315 | 2399 | if (sym->ts.u.cl->backend_decl == NULL) |
417ab240 | 2400 | { |
c2255bc4 AH |
2401 | tree len = build_decl (input_location, |
2402 | VAR_DECL, | |
417ab240 JJ |
2403 | get_identifier ("..__result"), |
2404 | gfc_charlen_type_node); | |
2405 | DECL_ARTIFICIAL (len) = 1; | |
2406 | TREE_USED (len) = 1; | |
bc21d315 | 2407 | sym->ts.u.cl->backend_decl = len; |
417ab240 | 2408 | } |
6de9cd9a | 2409 | |
417ab240 JJ |
2410 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2411 | arg = sym->result ? sym->result : sym; | |
2412 | backend_decl = arg->backend_decl; | |
2413 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2414 | type. */ | |
2415 | arg->backend_decl = NULL; | |
2416 | type = gfc_sym_type (arg); | |
2417 | arg->backend_decl = backend_decl; | |
2418 | type = build_reference_type (type); | |
2419 | } | |
2420 | } | |
6de9cd9a | 2421 | |
c2255bc4 AH |
2422 | parm = build_decl (input_location, |
2423 | PARM_DECL, get_identifier ("__result"), type); | |
6de9cd9a | 2424 | |
417ab240 JJ |
2425 | DECL_CONTEXT (parm) = fndecl; |
2426 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2427 | TREE_READONLY (parm) = 1; | |
2428 | DECL_ARTIFICIAL (parm) = 1; | |
faf28b3a | 2429 | gfc_finish_decl (parm); |
6de9cd9a | 2430 | |
417ab240 JJ |
2431 | arglist = chainon (arglist, parm); |
2432 | typelist = TREE_CHAIN (typelist); | |
6de9cd9a | 2433 | |
417ab240 JJ |
2434 | if (sym->ts.type == BT_CHARACTER) |
2435 | { | |
2436 | gfc_allocate_lang_decl (parm); | |
2437 | arglist = chainon (arglist, length); | |
1d754240 PB |
2438 | typelist = TREE_CHAIN (typelist); |
2439 | } | |
2440 | } | |
6de9cd9a | 2441 | |
417ab240 | 2442 | hidden_typelist = typelist; |
4cbc9039 | 2443 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
417ab240 JJ |
2444 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2445 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2446 | ||
4cbc9039 | 2447 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
1d754240 PB |
2448 | { |
2449 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
417ab240 | 2450 | |
1d754240 PB |
2451 | /* Ignore alternate returns. */ |
2452 | if (f->sym == NULL) | |
2453 | continue; | |
6de9cd9a | 2454 | |
1d754240 | 2455 | type = TREE_VALUE (typelist); |
6de9cd9a | 2456 | |
33215bb3 TB |
2457 | if (f->sym->ts.type == BT_CHARACTER |
2458 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
417ab240 JJ |
2459 | { |
2460 | tree len_type = TREE_VALUE (hidden_typelist); | |
2461 | tree length = NULL_TREE; | |
8d51f26f PT |
2462 | if (!f->sym->ts.deferred) |
2463 | gcc_assert (len_type == gfc_charlen_type_node); | |
2464 | else | |
2465 | gcc_assert (POINTER_TYPE_P (len_type)); | |
417ab240 JJ |
2466 | |
2467 | strcpy (&name[1], f->sym->name); | |
2468 | name[0] = '_'; | |
c2255bc4 AH |
2469 | length = build_decl (input_location, |
2470 | PARM_DECL, get_identifier (name), len_type); | |
6de9cd9a | 2471 | |
417ab240 JJ |
2472 | hidden_arglist = chainon (hidden_arglist, length); |
2473 | DECL_CONTEXT (length) = fndecl; | |
2474 | DECL_ARTIFICIAL (length) = 1; | |
2475 | DECL_ARG_TYPE (length) = len_type; | |
2476 | TREE_READONLY (length) = 1; | |
faf28b3a | 2477 | gfc_finish_decl (length); |
6de9cd9a | 2478 | |
cadb8f42 | 2479 | /* Remember the passed value. */ |
8b704316 | 2480 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
3ba558db TB |
2481 | { |
2482 | /* This can happen if the same type is used for multiple | |
2483 | arguments. We need to copy cl as otherwise | |
2484 | cl->passed_length gets overwritten. */ | |
b76e28c6 | 2485 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
3ba558db | 2486 | } |
bc21d315 | 2487 | f->sym->ts.u.cl->passed_length = length; |
6de9cd9a | 2488 | |
417ab240 | 2489 | /* Use the passed value for assumed length variables. */ |
bc21d315 | 2490 | if (!f->sym->ts.u.cl->length) |
6de9cd9a | 2491 | { |
417ab240 | 2492 | TREE_USED (length) = 1; |
bc21d315 JW |
2493 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2494 | f->sym->ts.u.cl->backend_decl = length; | |
417ab240 JJ |
2495 | } |
2496 | ||
2497 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2498 | ||
bc21d315 JW |
2499 | if (f->sym->ts.u.cl->backend_decl == NULL |
2500 | || f->sym->ts.u.cl->backend_decl == length) | |
417ab240 | 2501 | { |
afbc5ae8 PT |
2502 | if (POINTER_TYPE_P (len_type)) |
2503 | f->sym->ts.u.cl->backend_decl = | |
2504 | build_fold_indirect_ref_loc (input_location, length); | |
2505 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
417ab240 JJ |
2506 | gfc_create_string_length (f->sym); |
2507 | ||
2508 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2509 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2510 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2511 | else | |
2512 | type = gfc_sym_type (f->sym); | |
6de9cd9a | 2513 | } |
6de9cd9a | 2514 | } |
60f97ac8 | 2515 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
9b110be2 | 2516 | hence, the optional status cannot be transferred via a NULL pointer. |
60f97ac8 TB |
2517 | Thus, we will use a hidden argument in that case. */ |
2518 | else if (f->sym->attr.optional && f->sym->attr.value | |
adede54c | 2519 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
f6288c24 | 2520 | && !gfc_bt_struct (f->sym->ts.type)) |
60f97ac8 TB |
2521 | { |
2522 | tree tmp; | |
2523 | strcpy (&name[1], f->sym->name); | |
2524 | name[0] = '_'; | |
2525 | tmp = build_decl (input_location, | |
2526 | PARM_DECL, get_identifier (name), | |
2527 | boolean_type_node); | |
2528 | ||
2529 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2530 | DECL_CONTEXT (tmp) = fndecl; | |
2531 | DECL_ARTIFICIAL (tmp) = 1; | |
2532 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2533 | TREE_READONLY (tmp) = 1; | |
2534 | gfc_finish_decl (tmp); | |
2535 | } | |
6de9cd9a | 2536 | |
417ab240 JJ |
2537 | /* For non-constant length array arguments, make sure they use |
2538 | a different type node from TYPE_ARG_TYPES type. */ | |
2539 | if (f->sym->attr.dimension | |
2540 | && type == TREE_VALUE (typelist) | |
2541 | && TREE_CODE (type) == POINTER_TYPE | |
2542 | && GFC_ARRAY_TYPE_P (type) | |
2543 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2544 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2545 | { | |
2546 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2547 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2548 | else | |
2549 | type = gfc_sym_type (f->sym); | |
2550 | } | |
2551 | ||
8fb74da4 JW |
2552 | if (f->sym->attr.proc_pointer) |
2553 | type = build_pointer_type (type); | |
2554 | ||
c28d1d9b TB |
2555 | if (f->sym->attr.volatile_) |
2556 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2557 | ||
df2fba9e | 2558 | /* Build the argument declaration. */ |
c2255bc4 AH |
2559 | parm = build_decl (input_location, |
2560 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
417ab240 | 2561 | |
c28d1d9b TB |
2562 | if (f->sym->attr.volatile_) |
2563 | { | |
2564 | TREE_THIS_VOLATILE (parm) = 1; | |
2565 | TREE_SIDE_EFFECTS (parm) = 1; | |
2566 | } | |
2567 | ||
417ab240 JJ |
2568 | /* Fill in arg stuff. */ |
2569 | DECL_CONTEXT (parm) = fndecl; | |
2570 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
31ec3535 JJ |
2571 | /* All implementation args except for VALUE are read-only. */ |
2572 | if (!f->sym->attr.value) | |
2573 | TREE_READONLY (parm) = 1; | |
714495cd JJ |
2574 | if (POINTER_TYPE_P (type) |
2575 | && (!f->sym->attr.proc_pointer | |
2576 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2577 | DECL_BY_REFERENCE (parm) = 1; | |
417ab240 | 2578 | |
faf28b3a | 2579 | gfc_finish_decl (parm); |
92d28cbb | 2580 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
417ab240 JJ |
2581 | |
2582 | f->sym->backend_decl = parm; | |
2583 | ||
aa13dc3c TB |
2584 | /* Coarrays which are descriptorless or assumed-shape pass with |
2585 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
f19626cf | 2586 | if (flag_coarray == GFC_FCOARRAY_LIB |
598cc4fa TB |
2587 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2588 | && !f->sym->attr.allocatable) | |
2589 | || (f->sym->ts.type == BT_CLASS | |
2590 | && CLASS_DATA (f->sym)->attr.codimension | |
2591 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
0c53708e TB |
2592 | { |
2593 | tree caf_type; | |
2594 | tree token; | |
2595 | tree offset; | |
2596 | ||
2597 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2598 | && !sym->attr.is_bind_c); | |
598cc4fa TB |
2599 | caf_type = f->sym->ts.type == BT_CLASS |
2600 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2601 | : TREE_TYPE (f->sym->backend_decl); | |
0c53708e | 2602 | |
0c53708e TB |
2603 | token = build_decl (input_location, PARM_DECL, |
2604 | create_tmp_var_name ("caf_token"), | |
2605 | build_qualified_type (pvoid_type_node, | |
2606 | TYPE_QUAL_RESTRICT)); | |
598cc4fa TB |
2607 | if ((f->sym->ts.type != BT_CLASS |
2608 | && f->sym->as->type != AS_DEFERRED) | |
2609 | || (f->sym->ts.type == BT_CLASS | |
2610 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
aa13dc3c TB |
2611 | { |
2612 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2613 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2614 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2615 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2616 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2617 | } | |
2618 | else | |
2619 | { | |
2620 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2621 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2622 | } | |
8b704316 | 2623 | |
0c53708e TB |
2624 | DECL_CONTEXT (token) = fndecl; |
2625 | DECL_ARTIFICIAL (token) = 1; | |
2626 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2627 | TREE_READONLY (token) = 1; | |
2628 | hidden_arglist = chainon (hidden_arglist, token); | |
2629 | gfc_finish_decl (token); | |
2630 | ||
0c53708e TB |
2631 | offset = build_decl (input_location, PARM_DECL, |
2632 | create_tmp_var_name ("caf_offset"), | |
2633 | gfc_array_index_type); | |
2634 | ||
598cc4fa TB |
2635 | if ((f->sym->ts.type != BT_CLASS |
2636 | && f->sym->as->type != AS_DEFERRED) | |
2637 | || (f->sym->ts.type == BT_CLASS | |
2638 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
aa13dc3c TB |
2639 | { |
2640 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2641 | == NULL_TREE); | |
2642 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2643 | } | |
2644 | else | |
2645 | { | |
2646 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2647 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2648 | } | |
0c53708e TB |
2649 | DECL_CONTEXT (offset) = fndecl; |
2650 | DECL_ARTIFICIAL (offset) = 1; | |
2651 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2652 | TREE_READONLY (offset) = 1; | |
2653 | hidden_arglist = chainon (hidden_arglist, offset); | |
2654 | gfc_finish_decl (offset); | |
2655 | } | |
2656 | ||
417ab240 | 2657 | arglist = chainon (arglist, parm); |
1d754240 | 2658 | typelist = TREE_CHAIN (typelist); |
6de9cd9a | 2659 | } |
1d754240 | 2660 | |
7861a5ce TB |
2661 | /* Add the hidden string length parameters, unless the procedure |
2662 | is bind(C). */ | |
2663 | if (!sym->attr.is_bind_c) | |
2664 | arglist = chainon (arglist, hidden_arglist); | |
417ab240 | 2665 | |
884d2e6b SE |
2666 | gcc_assert (hidden_typelist == NULL_TREE |
2667 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
1d754240 | 2668 | DECL_ARGUMENTS (fndecl) = arglist; |
3d79abbd | 2669 | } |
1d754240 | 2670 | |
3d79abbd PB |
2671 | /* Do the setup necessary before generating the body of a function. */ |
2672 | ||
2673 | static void | |
2674 | trans_function_start (gfc_symbol * sym) | |
2675 | { | |
2676 | tree fndecl; | |
2677 | ||
2678 | fndecl = sym->backend_decl; | |
2679 | ||
f8d0aee5 | 2680 | /* Let GCC know the current scope is this function. */ |
3d79abbd PB |
2681 | current_function_decl = fndecl; |
2682 | ||
f8d0aee5 | 2683 | /* Let the world know what we're about to do. */ |
3d79abbd PB |
2684 | announce_function (fndecl); |
2685 | ||
e5b16755 | 2686 | if (DECL_FILE_SCOPE_P (fndecl)) |
3d79abbd | 2687 | { |
f8d0aee5 | 2688 | /* Create RTL for function declaration. */ |
3d79abbd PB |
2689 | rest_of_decl_compilation (fndecl, 1, 0); |
2690 | } | |
2691 | ||
f8d0aee5 | 2692 | /* Create RTL for function definition. */ |
3d79abbd PB |
2693 | make_decl_rtl (fndecl); |
2694 | ||
b6b27e98 | 2695 | allocate_struct_function (fndecl, false); |
3d79abbd | 2696 | |
f8d0aee5 | 2697 | /* function.c requires a push at the start of the function. */ |
87a60f68 | 2698 | pushlevel (); |
3d79abbd PB |
2699 | } |
2700 | ||
2701 | /* Create thunks for alternate entry points. */ | |
2702 | ||
2703 | static void | |
fb55ca75 | 2704 | build_entry_thunks (gfc_namespace * ns, bool global) |
3d79abbd PB |
2705 | { |
2706 | gfc_formal_arglist *formal; | |
2707 | gfc_formal_arglist *thunk_formal; | |
2708 | gfc_entry_list *el; | |
2709 | gfc_symbol *thunk_sym; | |
2710 | stmtblock_t body; | |
2711 | tree thunk_fndecl; | |
3d79abbd | 2712 | tree tmp; |
c8cc8542 | 2713 | locus old_loc; |
3d79abbd PB |
2714 | |
2715 | /* This should always be a toplevel function. */ | |
6e45f57b | 2716 | gcc_assert (current_function_decl == NULL_TREE); |
3d79abbd | 2717 | |
363aab21 | 2718 | gfc_save_backend_locus (&old_loc); |
3d79abbd PB |
2719 | for (el = ns->entries; el; el = el->next) |
2720 | { | |
9771b263 DN |
2721 | vec<tree, va_gc> *args = NULL; |
2722 | vec<tree, va_gc> *string_args = NULL; | |
3bb06db4 | 2723 | |
3d79abbd | 2724 | thunk_sym = el->sym; |
8b704316 | 2725 | |
fb55ca75 | 2726 | build_function_decl (thunk_sym, global); |
3d79abbd PB |
2727 | create_function_arglist (thunk_sym); |
2728 | ||
2729 | trans_function_start (thunk_sym); | |
2730 | ||
2731 | thunk_fndecl = thunk_sym->backend_decl; | |
2732 | ||
c7c79a09 | 2733 | gfc_init_block (&body); |
3d79abbd | 2734 | |
f8d0aee5 | 2735 | /* Pass extra parameter identifying this entry point. */ |
7d60be94 | 2736 | tmp = build_int_cst (gfc_array_index_type, el->id); |
9771b263 | 2737 | vec_safe_push (args, tmp); |
3d79abbd | 2738 | |
d198b59a JJ |
2739 | if (thunk_sym->attr.function) |
2740 | { | |
2741 | if (gfc_return_by_reference (ns->proc_name)) | |
2742 | { | |
2743 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
9771b263 | 2744 | vec_safe_push (args, ref); |
d198b59a | 2745 | if (ns->proc_name->ts.type == BT_CHARACTER) |
9771b263 | 2746 | vec_safe_push (args, DECL_CHAIN (ref)); |
d198b59a JJ |
2747 | } |
2748 | } | |
2749 | ||
4cbc9039 JW |
2750 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2751 | formal = formal->next) | |
3d79abbd | 2752 | { |
d198b59a JJ |
2753 | /* Ignore alternate returns. */ |
2754 | if (formal->sym == NULL) | |
2755 | continue; | |
2756 | ||
3d79abbd PB |
2757 | /* We don't have a clever way of identifying arguments, so resort to |
2758 | a brute-force search. */ | |
4cbc9039 | 2759 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
3d79abbd PB |
2760 | thunk_formal; |
2761 | thunk_formal = thunk_formal->next) | |
2762 | { | |
2763 | if (thunk_formal->sym == formal->sym) | |
2764 | break; | |
2765 | } | |
2766 | ||
2767 | if (thunk_formal) | |
2768 | { | |
2769 | /* Pass the argument. */ | |
3e978d30 | 2770 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
9771b263 | 2771 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
3d79abbd PB |
2772 | if (formal->sym->ts.type == BT_CHARACTER) |
2773 | { | |
bc21d315 | 2774 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
9771b263 | 2775 | vec_safe_push (string_args, tmp); |
3d79abbd PB |
2776 | } |
2777 | } | |
2778 | else | |
2779 | { | |
2780 | /* Pass NULL for a missing argument. */ | |
9771b263 | 2781 | vec_safe_push (args, null_pointer_node); |
3d79abbd PB |
2782 | if (formal->sym->ts.type == BT_CHARACTER) |
2783 | { | |
c3238e32 | 2784 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
9771b263 | 2785 | vec_safe_push (string_args, tmp); |
3d79abbd PB |
2786 | } |
2787 | } | |
2788 | } | |
2789 | ||
2790 | /* Call the master function. */ | |
9771b263 | 2791 | vec_safe_splice (args, string_args); |
3d79abbd | 2792 | tmp = ns->proc_name->backend_decl; |
3bb06db4 | 2793 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
d198b59a JJ |
2794 | if (ns->proc_name->attr.mixed_entry_master) |
2795 | { | |
2796 | tree union_decl, field; | |
2797 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2798 | ||
c2255bc4 AH |
2799 | union_decl = build_decl (input_location, |
2800 | VAR_DECL, get_identifier ("__result"), | |
d198b59a JJ |
2801 | TREE_TYPE (master_type)); |
2802 | DECL_ARTIFICIAL (union_decl) = 1; | |
2803 | DECL_EXTERNAL (union_decl) = 0; | |
2804 | TREE_PUBLIC (union_decl) = 0; | |
2805 | TREE_USED (union_decl) = 1; | |
2806 | layout_decl (union_decl, 0); | |
2807 | pushdecl (union_decl); | |
2808 | ||
2809 | DECL_CONTEXT (union_decl) = current_function_decl; | |
bc98ed60 TB |
2810 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2811 | TREE_TYPE (union_decl), union_decl, tmp); | |
d198b59a JJ |
2812 | gfc_add_expr_to_block (&body, tmp); |
2813 | ||
2814 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
910ad8de | 2815 | field; field = DECL_CHAIN (field)) |
d198b59a JJ |
2816 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2817 | thunk_sym->result->name) == 0) | |
2818 | break; | |
2819 | gcc_assert (field != NULL_TREE); | |
bc98ed60 TB |
2820 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2821 | TREE_TYPE (field), union_decl, field, | |
2822 | NULL_TREE); | |
8b704316 | 2823 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
44855d8c TS |
2824 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2825 | DECL_RESULT (current_function_decl), tmp); | |
d198b59a JJ |
2826 | tmp = build1_v (RETURN_EXPR, tmp); |
2827 | } | |
2828 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2829 | != void_type_node) | |
2830 | { | |
bc98ed60 | 2831 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
44855d8c TS |
2832 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2833 | DECL_RESULT (current_function_decl), tmp); | |
d198b59a JJ |
2834 | tmp = build1_v (RETURN_EXPR, tmp); |
2835 | } | |
3d79abbd PB |
2836 | gfc_add_expr_to_block (&body, tmp); |
2837 | ||
2838 | /* Finish off this function and send it for code generation. */ | |
2839 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
c7c79a09 | 2840 | tmp = getdecls (); |
87a60f68 | 2841 | poplevel (1, 1); |
3d79abbd | 2842 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
c7c79a09 JJ |
2843 | DECL_SAVED_TREE (thunk_fndecl) |
2844 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2845 | DECL_INITIAL (thunk_fndecl)); | |
3d79abbd PB |
2846 | |
2847 | /* Output the GENERIC tree. */ | |
2848 | dump_function (TDI_original, thunk_fndecl); | |
2849 | ||
2850 | /* Store the end of the function, so that we get good line number | |
2851 | info for the epilogue. */ | |
2852 | cfun->function_end_locus = input_location; | |
2853 | ||
2854 | /* We're leaving the context of this function, so zap cfun. | |
2855 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2856 | tree_rest_of_compilation. */ | |
db2960f4 | 2857 | set_cfun (NULL); |
3d79abbd PB |
2858 | |
2859 | current_function_decl = NULL_TREE; | |
2860 | ||
3dafb85c | 2861 | cgraph_node::finalize_function (thunk_fndecl, true); |
3d79abbd PB |
2862 | |
2863 | /* We share the symbols in the formal argument list with other entry | |
2864 | points and the master function. Clear them so that they are | |
2865 | recreated for each function. */ | |
4cbc9039 JW |
2866 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2867 | formal = formal->next) | |
d198b59a JJ |
2868 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2869 | { | |
2870 | formal->sym->backend_decl = NULL_TREE; | |
2871 | if (formal->sym->ts.type == BT_CHARACTER) | |
bc21d315 | 2872 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
d198b59a JJ |
2873 | } |
2874 | ||
2875 | if (thunk_sym->attr.function) | |
3d79abbd | 2876 | { |
d198b59a | 2877 | if (thunk_sym->ts.type == BT_CHARACTER) |
bc21d315 | 2878 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
d198b59a | 2879 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
bc21d315 | 2880 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
3d79abbd PB |
2881 | } |
2882 | } | |
c8cc8542 | 2883 | |
363aab21 | 2884 | gfc_restore_backend_locus (&old_loc); |
3d79abbd PB |
2885 | } |
2886 | ||
2887 | ||
2888 | /* Create a decl for a function, and create any thunks for alternate entry | |
fb55ca75 TB |
2889 | points. If global is true, generate the function in the global binding |
2890 | level, otherwise in the current binding level (which can be global). */ | |
3d79abbd PB |
2891 | |
2892 | void | |
fb55ca75 | 2893 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
3d79abbd PB |
2894 | { |
2895 | /* Create a declaration for the master function. */ | |
fb55ca75 | 2896 | build_function_decl (ns->proc_name, global); |
3d79abbd | 2897 | |
f8d0aee5 | 2898 | /* Compile the entry thunks. */ |
3d79abbd | 2899 | if (ns->entries) |
fb55ca75 | 2900 | build_entry_thunks (ns, global); |
3d79abbd PB |
2901 | |
2902 | /* Now create the read argument list. */ | |
2903 | create_function_arglist (ns->proc_name); | |
dd2fc525 JJ |
2904 | |
2905 | if (ns->omp_declare_simd) | |
2906 | gfc_trans_omp_declare_simd (ns); | |
3d79abbd PB |
2907 | } |
2908 | ||
5f20c93a | 2909 | /* Return the decl used to hold the function return value. If |
da4c6ed8 | 2910 | parent_flag is set, the context is the parent_scope. */ |
6de9cd9a DN |
2911 | |
2912 | tree | |
5f20c93a | 2913 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
6de9cd9a | 2914 | { |
5f20c93a PT |
2915 | tree decl; |
2916 | tree length; | |
2917 | tree this_fake_result_decl; | |
2918 | tree this_function_decl; | |
6de9cd9a DN |
2919 | |
2920 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2921 | ||
5f20c93a PT |
2922 | if (parent_flag) |
2923 | { | |
2924 | this_fake_result_decl = parent_fake_result_decl; | |
2925 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2926 | } | |
2927 | else | |
2928 | { | |
2929 | this_fake_result_decl = current_fake_result_decl; | |
2930 | this_function_decl = current_function_decl; | |
2931 | } | |
2932 | ||
d198b59a | 2933 | if (sym |
5f20c93a | 2934 | && sym->ns->proc_name->backend_decl == this_function_decl |
417ab240 | 2935 | && sym->ns->proc_name->attr.entry_master |
d198b59a JJ |
2936 | && sym != sym->ns->proc_name) |
2937 | { | |
417ab240 | 2938 | tree t = NULL, var; |
5f20c93a PT |
2939 | if (this_fake_result_decl != NULL) |
2940 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
417ab240 JJ |
2941 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2942 | break; | |
2943 | if (t) | |
2944 | return TREE_VALUE (t); | |
5f20c93a PT |
2945 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2946 | ||
2947 | if (parent_flag) | |
2948 | this_fake_result_decl = parent_fake_result_decl; | |
2949 | else | |
2950 | this_fake_result_decl = current_fake_result_decl; | |
2951 | ||
417ab240 | 2952 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
d198b59a JJ |
2953 | { |
2954 | tree field; | |
2955 | ||
2956 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
910ad8de | 2957 | field; field = DECL_CHAIN (field)) |
d198b59a JJ |
2958 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2959 | sym->name) == 0) | |
2960 | break; | |
2961 | ||
2962 | gcc_assert (field != NULL_TREE); | |
bc98ed60 TB |
2963 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2964 | TREE_TYPE (field), decl, field, NULL_TREE); | |
d198b59a | 2965 | } |
5f20c93a PT |
2966 | |
2967 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2968 | if (parent_flag) | |
2969 | gfc_add_decl_to_parent_function (var); | |
2970 | else | |
2971 | gfc_add_decl_to_function (var); | |
2972 | ||
417ab240 JJ |
2973 | SET_DECL_VALUE_EXPR (var, decl); |
2974 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
4b8ae4db | 2975 | GFC_DECL_RESULT (var) = 1; |
5f20c93a PT |
2976 | |
2977 | TREE_CHAIN (this_fake_result_decl) | |
2978 | = tree_cons (get_identifier (sym->name), var, | |
2979 | TREE_CHAIN (this_fake_result_decl)); | |
417ab240 | 2980 | return var; |
d198b59a JJ |
2981 | } |
2982 | ||
5f20c93a PT |
2983 | if (this_fake_result_decl != NULL_TREE) |
2984 | return TREE_VALUE (this_fake_result_decl); | |
6de9cd9a DN |
2985 | |
2986 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2987 | sym is NULL. */ | |
2988 | if (!sym) | |
2989 | return NULL_TREE; | |
2990 | ||
417ab240 | 2991 | if (sym->ts.type == BT_CHARACTER) |
6de9cd9a | 2992 | { |
bc21d315 | 2993 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
417ab240 JJ |
2994 | length = gfc_create_string_length (sym); |
2995 | else | |
bc21d315 | 2996 | length = sym->ts.u.cl->backend_decl; |
d168c883 | 2997 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
a7d6b765 | 2998 | gfc_add_decl_to_function (length); |
6de9cd9a DN |
2999 | } |
3000 | ||
3001 | if (gfc_return_by_reference (sym)) | |
3002 | { | |
5f20c93a | 3003 | decl = DECL_ARGUMENTS (this_function_decl); |
d198b59a | 3004 | |
5f20c93a | 3005 | if (sym->ns->proc_name->backend_decl == this_function_decl |
d198b59a | 3006 | && sym->ns->proc_name->attr.entry_master) |
910ad8de | 3007 | decl = DECL_CHAIN (decl); |
6de9cd9a DN |
3008 | |
3009 | TREE_USED (decl) = 1; | |
3010 | if (sym->as) | |
3011 | decl = gfc_build_dummy_array_decl (sym, decl); | |
3012 | } | |
3013 | else | |
3014 | { | |
3015 | sprintf (name, "__result_%.20s", | |
5f20c93a | 3016 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
6de9cd9a | 3017 | |
da4c6ed8 | 3018 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
88e09c79 | 3019 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
c2255bc4 | 3020 | VAR_DECL, get_identifier (name), |
da4c6ed8 TS |
3021 | gfc_sym_type (sym)); |
3022 | else | |
88e09c79 | 3023 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
c2255bc4 | 3024 | VAR_DECL, get_identifier (name), |
da4c6ed8 | 3025 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
6de9cd9a DN |
3026 | DECL_ARTIFICIAL (decl) = 1; |
3027 | DECL_EXTERNAL (decl) = 0; | |
3028 | TREE_PUBLIC (decl) = 0; | |
3029 | TREE_USED (decl) = 1; | |
6c7a4dfd | 3030 | GFC_DECL_RESULT (decl) = 1; |
c55cebda | 3031 | TREE_ADDRESSABLE (decl) = 1; |
6de9cd9a DN |
3032 | |
3033 | layout_decl (decl, 0); | |
92d28cbb | 3034 | gfc_finish_decl_attrs (decl, &sym->attr); |
6de9cd9a | 3035 | |
5f20c93a PT |
3036 | if (parent_flag) |
3037 | gfc_add_decl_to_parent_function (decl); | |
3038 | else | |
3039 | gfc_add_decl_to_function (decl); | |
6de9cd9a DN |
3040 | } |
3041 | ||
5f20c93a PT |
3042 | if (parent_flag) |
3043 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3044 | else | |
3045 | current_fake_result_decl = build_tree_list (NULL, decl); | |
6de9cd9a DN |
3046 | |
3047 | return decl; | |
3048 | } | |
3049 | ||
3050 | ||
3051 | /* Builds a function decl. The remaining parameters are the types of the | |
3052 | function arguments. Negative nargs indicates a varargs function. */ | |
3053 | ||
0b7b376d RG |
3054 | static tree |
3055 | build_library_function_decl_1 (tree name, const char *spec, | |
3056 | tree rettype, int nargs, va_list p) | |
6de9cd9a | 3057 | { |
9771b263 | 3058 | vec<tree, va_gc> *arglist; |
6de9cd9a DN |
3059 | tree fntype; |
3060 | tree fndecl; | |
6de9cd9a DN |
3061 | int n; |
3062 | ||
3063 | /* Library functions must be declared with global scope. */ | |
6e45f57b | 3064 | gcc_assert (current_function_decl == NULL_TREE); |
6de9cd9a | 3065 | |
6de9cd9a | 3066 | /* Create a list of the argument types. */ |
9771b263 | 3067 | vec_alloc (arglist, abs (nargs)); |
6c32445b | 3068 | for (n = abs (nargs); n > 0; n--) |
6de9cd9a | 3069 | { |
6c32445b | 3070 | tree argtype = va_arg (p, tree); |
9771b263 | 3071 | arglist->quick_push (argtype); |
6de9cd9a DN |
3072 | } |
3073 | ||
3074 | /* Build the function type and decl. */ | |
6c32445b NF |
3075 | if (nargs >= 0) |
3076 | fntype = build_function_type_vec (rettype, arglist); | |
3077 | else | |
3078 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
0b7b376d RG |
3079 | if (spec) |
3080 | { | |
3081 | tree attr_args = build_tree_list (NULL_TREE, | |
3082 | build_string (strlen (spec), spec)); | |
3083 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3084 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3085 | fntype = build_type_attribute_variant (fntype, attrs); | |
3086 | } | |
c2255bc4 AH |
3087 | fndecl = build_decl (input_location, |
3088 | FUNCTION_DECL, name, fntype); | |
6de9cd9a DN |
3089 | |
3090 | /* Mark this decl as external. */ | |
3091 | DECL_EXTERNAL (fndecl) = 1; | |
3092 | TREE_PUBLIC (fndecl) = 1; | |
3093 | ||
6de9cd9a DN |
3094 | pushdecl (fndecl); |
3095 | ||
0e6df31e | 3096 | rest_of_decl_compilation (fndecl, 1, 0); |
6de9cd9a DN |
3097 | |
3098 | return fndecl; | |
3099 | } | |
3100 | ||
0b7b376d RG |
3101 | /* Builds a function decl. The remaining parameters are the types of the |
3102 | function arguments. Negative nargs indicates a varargs function. */ | |
3103 | ||
3104 | tree | |
3105 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3106 | { | |
3107 | tree ret; | |
3108 | va_list args; | |
3109 | va_start (args, nargs); | |
3110 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3111 | va_end (args); | |
3112 | return ret; | |
3113 | } | |
3114 | ||
3115 | /* Builds a function decl. The remaining parameters are the types of the | |
3116 | function arguments. Negative nargs indicates a varargs function. | |
3117 | The SPEC parameter specifies the function argument and return type | |
3118 | specification according to the fnspec function type attribute. */ | |
3119 | ||
3f34855a | 3120 | tree |
0b7b376d RG |
3121 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3122 | tree rettype, int nargs, ...) | |
3123 | { | |
3124 | tree ret; | |
3125 | va_list args; | |
3126 | va_start (args, nargs); | |
3127 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3128 | va_end (args); | |
3129 | return ret; | |
3130 | } | |
3131 | ||
6de9cd9a DN |
3132 | static void |
3133 | gfc_build_intrinsic_function_decls (void) | |
3134 | { | |
e2cad04b | 3135 | tree gfc_int4_type_node = gfc_get_int_type (4); |
a416c4c7 | 3136 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
e2cad04b | 3137 | tree gfc_int8_type_node = gfc_get_int_type (8); |
a416c4c7 | 3138 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
644cb69f | 3139 | tree gfc_int16_type_node = gfc_get_int_type (16); |
e2cad04b | 3140 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
374929b2 FXC |
3141 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3142 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
e2cad04b | 3143 | |
6de9cd9a | 3144 | /* String functions. */ |
6368f166 DF |
3145 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3146 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3147 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3148 | gfc_charlen_type_node, pchar1_type_node); | |
4ca4be7f | 3149 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
22b139e1 | 3150 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
6368f166 DF |
3151 | |
3152 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3153 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3154 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3155 | gfc_charlen_type_node, pchar1_type_node, | |
3156 | gfc_charlen_type_node, pchar1_type_node); | |
22b139e1 | 3157 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
6368f166 DF |
3158 | |
3159 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3160 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3161 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
4ca4be7f | 3162 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
22b139e1 | 3163 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
6368f166 DF |
3164 | |
3165 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3166 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3167 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3168 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3169 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
22b139e1 | 3170 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
6368f166 DF |
3171 | |
3172 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3173 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3174 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3175 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3176 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
22b139e1 | 3177 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
6368f166 DF |
3178 | |
3179 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3180 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3181 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3182 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3183 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
22b139e1 | 3184 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
6368f166 DF |
3185 | |
3186 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3187 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3188 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3189 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3190 | pchar1_type_node); | |
3191 | ||
3192 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3193 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3194 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3195 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3196 | integer_type_node); | |
3197 | ||
3198 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3199 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3200 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3201 | pchar1_type_node); | |
22b139e1 | 3202 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
6368f166 DF |
3203 | |
3204 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3205 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3206 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3207 | pchar1_type_node); | |
22b139e1 | 3208 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
6368f166 DF |
3209 | |
3210 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3211 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3212 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3213 | pchar1_type_node, gfc_charlen_type_node); | |
4ca4be7f | 3214 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
22b139e1 | 3215 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
6368f166 DF |
3216 | |
3217 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3218 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3219 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3220 | gfc_charlen_type_node, pchar4_type_node); | |
4ca4be7f | 3221 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
22b139e1 | 3222 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
6368f166 DF |
3223 | |
3224 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3225 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3226 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3227 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3228 | pchar4_type_node); | |
22b139e1 | 3229 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
6368f166 DF |
3230 | |
3231 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3232 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3233 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
4ca4be7f | 3234 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
22b139e1 | 3235 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
6368f166 DF |
3236 | |
3237 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3238 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3239 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3240 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3241 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
22b139e1 | 3242 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
6368f166 DF |
3243 | |
3244 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3245 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3246 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3247 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3248 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
22b139e1 | 3249 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
6368f166 DF |
3250 | |
3251 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3252 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3253 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3254 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3255 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
22b139e1 | 3256 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
6368f166 DF |
3257 | |
3258 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3259 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3260 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3261 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3262 | pchar4_type_node); | |
3263 | ||
3264 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3265 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3266 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3267 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3268 | integer_type_node); | |
3269 | ||
3270 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3271 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3272 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3273 | pchar4_type_node); | |
22b139e1 | 3274 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
6368f166 DF |
3275 | |
3276 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3277 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3278 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3279 | pchar4_type_node); | |
22b139e1 | 3280 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
6368f166 DF |
3281 | |
3282 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3283 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3284 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3285 | pvoid_type_node, gfc_charlen_type_node); | |
4ca4be7f | 3286 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
22b139e1 | 3287 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
d393bbd7 FXC |
3288 | |
3289 | ||
3290 | /* Conversion between character kinds. */ | |
3291 | ||
6368f166 DF |
3292 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3293 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3294 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3295 | gfc_charlen_type_node, pchar1_type_node); | |
d393bbd7 | 3296 | |
6368f166 DF |
3297 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3298 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3299 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3300 | gfc_charlen_type_node, pchar4_type_node); | |
d393bbd7 | 3301 | |
374929b2 | 3302 | /* Misc. functions. */ |
2263c775 | 3303 | |
6368f166 DF |
3304 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3305 | get_identifier (PREFIX("ttynam")), ".W", | |
3306 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3307 | integer_type_node); | |
3308 | ||
3309 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3310 | get_identifier (PREFIX("fdate")), ".W", | |
3311 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3312 | ||
3313 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3314 | get_identifier (PREFIX("ctime")), ".W", | |
3315 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3316 | gfc_int8_type_node); | |
3317 | ||
3318 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3319 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3320 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
4ca4be7f | 3321 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
22b139e1 | 3322 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
6368f166 DF |
3323 | |
3324 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3325 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3326 | gfc_int4_type_node, 1, pvoid_type_node); | |
4ca4be7f | 3327 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
22b139e1 | 3328 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
6368f166 DF |
3329 | |
3330 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3331 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3332 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3333 | pvoid_type_node); | |
4ca4be7f | 3334 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
22b139e1 | 3335 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
6de9cd9a | 3336 | |
a416c4c7 FXC |
3337 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3338 | get_identifier (PREFIX("system_clock_4")), | |
3339 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3340 | gfc_pint4_type_node); | |
3341 | ||
3342 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3343 | get_identifier (PREFIX("system_clock_8")), | |
3344 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3345 | gfc_pint8_type_node); | |
3346 | ||
6de9cd9a | 3347 | /* Power functions. */ |
5b200ac2 | 3348 | { |
644cb69f FXC |
3349 | tree ctype, rtype, itype, jtype; |
3350 | int rkind, ikind, jkind; | |
3351 | #define NIKINDS 3 | |
3352 | #define NRKINDS 4 | |
3353 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3354 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3355 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3356 | ||
3357 | for (ikind=0; ikind < NIKINDS; ikind++) | |
5b200ac2 | 3358 | { |
644cb69f FXC |
3359 | itype = gfc_get_int_type (ikinds[ikind]); |
3360 | ||
3361 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3362 | { | |
3363 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3364 | if (itype && jtype) | |
3365 | { | |
3366 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3367 | ikinds[jkind]); | |
3368 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3369 | gfc_build_library_function_decl (get_identifier (name), | |
3370 | jtype, 2, jtype, itype); | |
67fdae36 | 3371 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
22b139e1 | 3372 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
644cb69f FXC |
3373 | } |
3374 | } | |
3375 | ||
3376 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
5b200ac2 | 3377 | { |
644cb69f FXC |
3378 | rtype = gfc_get_real_type (rkinds[rkind]); |
3379 | if (rtype && itype) | |
3380 | { | |
3381 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3382 | ikinds[ikind]); | |
3383 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3384 | gfc_build_library_function_decl (get_identifier (name), | |
3385 | rtype, 2, rtype, itype); | |
67fdae36 | 3386 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
22b139e1 | 3387 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
644cb69f FXC |
3388 | } |
3389 | ||
3390 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3391 | if (ctype && itype) | |
3392 | { | |
3393 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3394 | ikinds[ikind]); | |
3395 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3396 | gfc_build_library_function_decl (get_identifier (name), | |
3397 | ctype, 2,ctype, itype); | |
67fdae36 | 3398 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
22b139e1 | 3399 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
644cb69f | 3400 | } |
5b200ac2 FW |
3401 | } |
3402 | } | |
644cb69f FXC |
3403 | #undef NIKINDS |
3404 | #undef NRKINDS | |
5b200ac2 FW |
3405 | } |
3406 | ||
6368f166 DF |
3407 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3408 | get_identifier (PREFIX("ishftc4")), | |
3409 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3410 | gfc_int4_type_node); | |
22b139e1 JJ |
3411 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3412 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
8b704316 | 3413 | |
6368f166 DF |
3414 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3415 | get_identifier (PREFIX("ishftc8")), | |
3416 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3417 | gfc_int4_type_node); | |
22b139e1 JJ |
3418 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3419 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
6368f166 | 3420 | |
644cb69f | 3421 | if (gfc_int16_type_node) |
22b139e1 JJ |
3422 | { |
3423 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
6368f166 DF |
3424 | get_identifier (PREFIX("ishftc16")), |
3425 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3426 | gfc_int4_type_node); | |
22b139e1 JJ |
3427 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3428 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3429 | } | |
644cb69f | 3430 | |
5a0aad31 FXC |
3431 | /* BLAS functions. */ |
3432 | { | |
dd52ecb0 | 3433 | tree pint = build_pointer_type (integer_type_node); |
5a0aad31 FXC |
3434 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3435 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3436 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3437 | tree pz = build_pointer_type | |
3438 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3439 | ||
3440 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3441 | (get_identifier | |
c61819ff | 3442 | (flag_underscoring ? "sgemm_" : "sgemm"), |
5a0aad31 FXC |
3443 | void_type_node, 15, pchar_type_node, |
3444 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
dd52ecb0 JB |
3445 | ps, pint, ps, ps, pint, integer_type_node, |
3446 | integer_type_node); | |
5a0aad31 FXC |
3447 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3448 | (get_identifier | |
c61819ff | 3449 | (flag_underscoring ? "dgemm_" : "dgemm"), |
5a0aad31 FXC |
3450 | void_type_node, 15, pchar_type_node, |
3451 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
dd52ecb0 JB |
3452 | pd, pint, pd, pd, pint, integer_type_node, |
3453 | integer_type_node); | |
5a0aad31 FXC |
3454 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3455 | (get_identifier | |
c61819ff | 3456 | (flag_underscoring ? "cgemm_" : "cgemm"), |
5a0aad31 FXC |
3457 | void_type_node, 15, pchar_type_node, |
3458 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
dd52ecb0 JB |
3459 | pc, pint, pc, pc, pint, integer_type_node, |
3460 | integer_type_node); | |
5a0aad31 FXC |
3461 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3462 | (get_identifier | |
c61819ff | 3463 | (flag_underscoring ? "zgemm_" : "zgemm"), |
5a0aad31 FXC |
3464 | void_type_node, 15, pchar_type_node, |
3465 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
dd52ecb0 JB |
3466 | pz, pint, pz, pz, pint, integer_type_node, |
3467 | integer_type_node); | |
5a0aad31 FXC |
3468 | } |
3469 | ||
6de9cd9a | 3470 | /* Other functions. */ |
6368f166 DF |
3471 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3472 | get_identifier (PREFIX("size0")), ".R", | |
3473 | gfc_array_index_type, 1, pvoid_type_node); | |
4ca4be7f | 3474 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
22b139e1 | 3475 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
6368f166 DF |
3476 | |
3477 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3478 | get_identifier (PREFIX("size1")), ".R", | |
3479 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
4ca4be7f | 3480 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
22b139e1 | 3481 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
6368f166 DF |
3482 | |
3483 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3484 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
22b139e1 | 3485 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
6de9cd9a DN |
3486 | } |
3487 | ||
3488 | ||
3489 | /* Make prototypes for runtime library functions. */ | |
3490 | ||
3491 | void | |
3492 | gfc_build_builtin_function_decls (void) | |
3493 | { | |
e2cad04b | 3494 | tree gfc_int4_type_node = gfc_get_int_type (4); |
6de9cd9a | 3495 | |
6368f166 DF |
3496 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3497 | get_identifier (PREFIX("stop_numeric")), | |
3498 | void_type_node, 1, gfc_int4_type_node); | |
6d1b0f92 | 3499 | /* STOP doesn't return. */ |
eed61baa TK |
3500 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3501 | ||
6368f166 DF |
3502 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3503 | get_identifier (PREFIX("stop_string")), ".R.", | |
3504 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
6d1b0f92 | 3505 | /* STOP doesn't return. */ |
6368f166 | 3506 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
4ca4be7f | 3507 | |
6368f166 DF |
3508 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3509 | get_identifier (PREFIX("error_stop_numeric")), | |
3510 | void_type_node, 1, gfc_int4_type_node); | |
6d1b0f92 JD |
3511 | /* ERROR STOP doesn't return. */ |
3512 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3513 | ||
6368f166 DF |
3514 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3515 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3516 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
d0a4a61c TB |
3517 | /* ERROR STOP doesn't return. */ |
3518 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3519 | ||
6368f166 DF |
3520 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3521 | get_identifier (PREFIX("pause_numeric")), | |
3522 | void_type_node, 1, gfc_int4_type_node); | |
6d1b0f92 | 3523 | |
6368f166 DF |
3524 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3525 | get_identifier (PREFIX("pause_string")), ".R.", | |
3526 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
6de9cd9a | 3527 | |
6368f166 DF |
3528 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3529 | get_identifier (PREFIX("runtime_error")), ".R", | |
3530 | void_type_node, -1, pchar_type_node); | |
16275f18 SB |
3531 | /* The runtime_error function does not return. */ |
3532 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
6de9cd9a | 3533 | |
6368f166 DF |
3534 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3535 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3536 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
f96d606f JD |
3537 | /* The runtime_error_at function does not return. */ |
3538 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
8b704316 | 3539 | |
6368f166 DF |
3540 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3541 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3542 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3543 | ||
3544 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3545 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3546 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3547 | pchar_type_node); | |
3548 | ||
3549 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3550 | get_identifier (PREFIX("os_error")), ".R", | |
3551 | void_type_node, 1, pchar_type_node); | |
1529b8d9 FXC |
3552 | /* The runtime_error function does not return. */ |
3553 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3554 | ||
6368f166 DF |
3555 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3556 | get_identifier (PREFIX("set_args")), | |
3557 | void_type_node, 2, integer_type_node, | |
3558 | build_pointer_type (pchar_type_node)); | |
092231a8 | 3559 | |
6368f166 DF |
3560 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3561 | get_identifier (PREFIX("set_fpe")), | |
3562 | void_type_node, 1, integer_type_node); | |
944b8b35 | 3563 | |
8b198102 FXC |
3564 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3565 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3566 | void_type_node, 1, pvoid_type_node); | |
3567 | ||
3568 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3569 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3570 | void_type_node, 1, pvoid_type_node); | |
3571 | ||
68d2e027 | 3572 | /* Keep the array dimension in sync with the call, later in this file. */ |
6368f166 DF |
3573 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3574 | get_identifier (PREFIX("set_options")), "..R", | |
3575 | void_type_node, 2, integer_type_node, | |
3576 | build_pointer_type (integer_type_node)); | |
8b67b708 | 3577 | |
6368f166 DF |
3578 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3579 | get_identifier (PREFIX("set_convert")), | |
3580 | void_type_node, 1, integer_type_node); | |
eaa90d25 | 3581 | |
6368f166 DF |
3582 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3583 | get_identifier (PREFIX("set_record_marker")), | |
3584 | void_type_node, 1, integer_type_node); | |
d67ab5ee | 3585 | |
6368f166 DF |
3586 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3587 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3588 | void_type_node, 1, integer_type_node); | |
07b3bbf2 | 3589 | |
0b7b376d | 3590 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
6368f166 DF |
3591 | get_identifier (PREFIX("internal_pack")), ".r", |
3592 | pvoid_type_node, 1, pvoid_type_node); | |
6de9cd9a | 3593 | |
0b7b376d | 3594 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
6368f166 DF |
3595 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3596 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3597 | ||
3598 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3599 | get_identifier (PREFIX("associated")), ".RR", | |
3600 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
4ca4be7f | 3601 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
22b139e1 | 3602 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
6de9cd9a | 3603 | |
60386f50 | 3604 | /* Coarray library calls. */ |
f19626cf | 3605 | if (flag_coarray == GFC_FCOARRAY_LIB) |
60386f50 TB |
3606 | { |
3607 | tree pint_type, pppchar_type; | |
3608 | ||
3609 | pint_type = build_pointer_type (integer_type_node); | |
3610 | pppchar_type | |
3611 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3612 | ||
3613 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
4971dd80 AV |
3614 | get_identifier (PREFIX("caf_init")), void_type_node, |
3615 | 2, pint_type, pppchar_type); | |
60386f50 TB |
3616 | |
3617 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3618 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3619 | ||
a8a5f4a9 | 3620 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
4971dd80 AV |
3621 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3622 | 1, integer_type_node); | |
a8a5f4a9 TB |
3623 | |
3624 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
4971dd80 AV |
3625 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3626 | 2, integer_type_node, integer_type_node); | |
a8a5f4a9 | 3627 | |
b8ff4e88 | 3628 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3c9f5092 AV |
3629 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3630 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
3631 | pint_type, pchar_type_node, integer_type_node); | |
5d81ddd0 TB |
3632 | |
3633 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
ba85c8c3 AV |
3634 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3635 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
3636 | integer_type_node); | |
b8ff4e88 | 3637 | |
b5116268 | 3638 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
4971dd80 AV |
3639 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3640 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
93e2e046 | 3641 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
20d0bfce | 3642 | boolean_type_node, pint_type); |
b5116268 TB |
3643 | |
3644 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
4971dd80 AV |
3645 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRW", void_type_node, 10, |
3646 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
93e2e046 | 3647 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
20d0bfce | 3648 | boolean_type_node, pint_type); |
b5116268 TB |
3649 | |
3650 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3c9f5092 AV |
3651 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3652 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3653 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3654 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3655 | integer_type_node, boolean_type_node, integer_type_node); | |
3656 | ||
3657 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
3658 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRW", void_type_node, | |
3659 | 9, pvoid_type_node, integer_type_node, pvoid_type_node, pvoid_type_node, | |
3660 | integer_type_node, integer_type_node, boolean_type_node, | |
3661 | boolean_type_node, pint_type); | |
3662 | ||
3663 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
3664 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRW", void_type_node, | |
3665 | 9, pvoid_type_node, integer_type_node, pvoid_type_node, pvoid_type_node, | |
3666 | integer_type_node, integer_type_node, boolean_type_node, | |
3667 | boolean_type_node, pint_type); | |
3668 | ||
3669 | gfor_fndecl_caf_sendget_by_ref | |
3670 | = gfc_build_library_function_decl_with_spec ( | |
3671 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWW", | |
3672 | void_type_node, 11, pvoid_type_node, integer_type_node, | |
3673 | pvoid_type_node, pvoid_type_node, integer_type_node, | |
3674 | pvoid_type_node, integer_type_node, integer_type_node, | |
3675 | boolean_type_node, pint_type, pint_type); | |
b5116268 | 3676 | |
60386f50 | 3677 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
f5c01f5b | 3678 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
d62cf3df | 3679 | 3, pint_type, pchar_type_node, integer_type_node); |
60386f50 | 3680 | |
9315dff0 AF |
3681 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3682 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3683 | 3, pint_type, pchar_type_node, integer_type_node); | |
3684 | ||
60386f50 | 3685 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
f5c01f5b DC |
3686 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3687 | 5, integer_type_node, pint_type, pint_type, | |
d62cf3df | 3688 | pchar_type_node, integer_type_node); |
60386f50 TB |
3689 | |
3690 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3691 | get_identifier (PREFIX("caf_error_stop")), | |
3692 | void_type_node, 1, gfc_int4_type_node); | |
3693 | /* CAF's ERROR STOP doesn't return. */ | |
3694 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3695 | ||
3696 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3697 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3698 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3699 | /* CAF's ERROR STOP doesn't return. */ | |
3700 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
d62cf3df | 3701 | |
0daa7ed9 | 3702 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
4971dd80 AV |
3703 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
3704 | void_type_node, 1, gfc_int4_type_node); | |
0daa7ed9 AF |
3705 | /* CAF's STOP doesn't return. */ |
3706 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3707 | ||
3708 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
4971dd80 AV |
3709 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
3710 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
0daa7ed9 AF |
3711 | /* CAF's STOP doesn't return. */ |
3712 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3713 | ||
42a8246d TB |
3714 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3715 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3716 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3717 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
42a8246d TB |
3718 | |
3719 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3720 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3721 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3722 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
42a8246d TB |
3723 | |
3724 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3725 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3726 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3727 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
42a8246d TB |
3728 | integer_type_node, integer_type_node); |
3729 | ||
3730 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3731 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3732 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3733 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3734 | integer_type_node, integer_type_node); | |
3735 | ||
bc0229f9 TB |
3736 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3737 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3738 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3739 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3740 | ||
3741 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3742 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
772e797a | 3743 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
bc0229f9 TB |
3744 | pint_type, pchar_type_node, integer_type_node); |
3745 | ||
5df445a2 TB |
3746 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3747 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3748 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3749 | pint_type, pchar_type_node, integer_type_node); | |
3750 | ||
3751 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3752 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3753 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3754 | pint_type, pchar_type_node, integer_type_node); | |
3755 | ||
3756 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3757 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3758 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3759 | pint_type, pint_type); | |
3760 | ||
ef78bc3c AV |
3761 | gfor_fndecl_caf_fail_image = gfc_build_library_function_decl ( |
3762 | get_identifier (PREFIX("caf_fail_image")), void_type_node, 0); | |
3763 | /* CAF's FAIL doesn't return. */ | |
3764 | TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1; | |
3765 | ||
3766 | gfor_fndecl_caf_failed_images | |
3767 | = gfc_build_library_function_decl_with_spec ( | |
3768 | get_identifier (PREFIX("caf_failed_images")), "WRR", | |
3769 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3770 | integer_type_node); | |
3771 | ||
3772 | gfor_fndecl_caf_image_status | |
3773 | = gfc_build_library_function_decl_with_spec ( | |
3774 | get_identifier (PREFIX("caf_image_status")), "RR", | |
3775 | integer_type_node, 2, integer_type_node, ppvoid_type_node); | |
3776 | ||
3777 | gfor_fndecl_caf_stopped_images | |
3778 | = gfc_build_library_function_decl_with_spec ( | |
3779 | get_identifier (PREFIX("caf_stopped_images")), "WRR", | |
3780 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3781 | integer_type_node); | |
3782 | ||
a16ee379 TB |
3783 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3784 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3785 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3786 | pint_type, pchar_type_node, integer_type_node); | |
3787 | ||
d62cf3df | 3788 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
b5116268 TB |
3789 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3790 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
d62cf3df TB |
3791 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3792 | ||
3793 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
b5116268 TB |
3794 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3795 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
d62cf3df TB |
3796 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3797 | ||
229c5919 TB |
3798 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3799 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3800 | void_type_node, 8, pvoid_type_node, | |
4971dd80 | 3801 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
229c5919 TB |
3802 | NULL_TREE)), |
3803 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3804 | integer_type_node, integer_type_node); | |
3805 | ||
d62cf3df | 3806 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
b5116268 TB |
3807 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3808 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
d62cf3df | 3809 | pint_type, pchar_type_node, integer_type_node); |
ba85c8c3 AV |
3810 | |
3811 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3812 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3813 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3814 | pvoid_type_node); | |
60386f50 TB |
3815 | } |
3816 | ||
6de9cd9a DN |
3817 | gfc_build_intrinsic_function_decls (); |
3818 | gfc_build_intrinsic_lib_fndecls (); | |
3819 | gfc_build_io_library_fndecls (); | |
3820 | } | |
3821 | ||
3822 | ||
1f2959f0 | 3823 | /* Evaluate the length of dummy character variables. */ |
6de9cd9a | 3824 | |
0019d498 DK |
3825 | static void |
3826 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3827 | gfc_wrapped_block *block) | |
6de9cd9a | 3828 | { |
0019d498 | 3829 | stmtblock_t init; |
6de9cd9a | 3830 | |
faf28b3a | 3831 | gfc_finish_decl (cl->backend_decl); |
6de9cd9a | 3832 | |
0019d498 | 3833 | gfc_start_block (&init); |
6de9cd9a DN |
3834 | |
3835 | /* Evaluate the string length expression. */ | |
0019d498 | 3836 | gfc_conv_string_length (cl, NULL, &init); |
417ab240 | 3837 | |
0019d498 | 3838 | gfc_trans_vla_type_sizes (sym, &init); |
417ab240 | 3839 | |
0019d498 | 3840 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
6de9cd9a DN |
3841 | } |
3842 | ||
3843 | ||
3844 | /* Allocate and cleanup an automatic character variable. */ | |
3845 | ||
0019d498 DK |
3846 | static void |
3847 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
6de9cd9a | 3848 | { |
0019d498 | 3849 | stmtblock_t init; |
6de9cd9a | 3850 | tree decl; |
6de9cd9a DN |
3851 | tree tmp; |
3852 | ||
6e45f57b | 3853 | gcc_assert (sym->backend_decl); |
bc21d315 | 3854 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
6de9cd9a | 3855 | |
323cea66 | 3856 | gfc_init_block (&init); |
6de9cd9a DN |
3857 | |
3858 | /* Evaluate the string length expression. */ | |
0019d498 | 3859 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
6de9cd9a | 3860 | |
0019d498 | 3861 | gfc_trans_vla_type_sizes (sym, &init); |
417ab240 | 3862 | |
6de9cd9a DN |
3863 | decl = sym->backend_decl; |
3864 | ||
1a186ec5 | 3865 | /* Emit a DECL_EXPR for this variable, which will cause the |
4ab2db93 | 3866 | gimplifier to allocate storage, and all that good stuff. */ |
bc98ed60 | 3867 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
0019d498 | 3868 | gfc_add_expr_to_block (&init, tmp); |
1a186ec5 | 3869 | |
0019d498 | 3870 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
6de9cd9a DN |
3871 | } |
3872 | ||
910450c1 FW |
3873 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3874 | ||
0019d498 DK |
3875 | static void |
3876 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
910450c1 | 3877 | { |
0019d498 | 3878 | stmtblock_t init; |
910450c1 FW |
3879 | |
3880 | gcc_assert (sym->backend_decl); | |
0019d498 | 3881 | gfc_start_block (&init); |
910450c1 FW |
3882 | |
3883 | /* Set the initial value to length. See the comments in | |
3884 | function gfc_add_assign_aux_vars in this file. */ | |
0019d498 | 3885 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
df09d1d5 | 3886 | build_int_cst (gfc_charlen_type_node, -2)); |
910450c1 | 3887 | |
0019d498 | 3888 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
910450c1 FW |
3889 | } |
3890 | ||
417ab240 JJ |
3891 | static void |
3892 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3893 | { | |
3894 | tree t = *tp, var, val; | |
3895 | ||
3896 | if (t == NULL || t == error_mark_node) | |
3897 | return; | |
3898 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3899 | return; | |
3900 | ||
3901 | if (TREE_CODE (t) == SAVE_EXPR) | |
3902 | { | |
3903 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3904 | { | |
3905 | *tp = TREE_OPERAND (t, 0); | |
3906 | return; | |
3907 | } | |
3908 | val = TREE_OPERAND (t, 0); | |
3909 | } | |
3910 | else | |
3911 | val = t; | |
3912 | ||
3913 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3914 | gfc_add_decl_to_function (var); | |
7a27d38f | 3915 | gfc_add_modify (body, var, unshare_expr (val)); |
417ab240 JJ |
3916 | if (TREE_CODE (t) == SAVE_EXPR) |
3917 | TREE_OPERAND (t, 0) = var; | |
3918 | *tp = var; | |
3919 | } | |
3920 | ||
3921 | static void | |
3922 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3923 | { | |
3924 | tree t; | |
3925 | ||
3926 | if (type == NULL || type == error_mark_node) | |
3927 | return; | |
3928 | ||
3929 | type = TYPE_MAIN_VARIANT (type); | |
3930 | ||
3931 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3932 | { | |
3933 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3934 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3935 | ||
3936 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3937 | { | |
3938 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3939 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3940 | } | |
3941 | } | |
3942 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3943 | { | |
3944 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3945 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3946 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3947 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3948 | ||
3949 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3950 | { | |
3951 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3952 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3953 | } | |
3954 | } | |
3955 | } | |
3956 | ||
3957 | /* Make sure all type sizes and array domains are either constant, | |
3958 | or variable or parameter decls. This is a simplified variant | |
3959 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3960 | variables in the expressions have been gimplified yet. | |
3961 | As type sizes and domains for various variable length arrays | |
3962 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3963 | time, without this routine gimplify_type_sizes in the middle-end | |
3964 | could result in the type sizes being gimplified earlier than where | |
3965 | those variables are initialized. */ | |
3966 | ||
3967 | void | |
3968 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3969 | { | |
3970 | tree type = TREE_TYPE (sym->backend_decl); | |
3971 | ||
3972 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3973 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3974 | { | |
3975 | if (! current_fake_result_decl) | |
3976 | return; | |
3977 | ||
3978 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3979 | } | |
3980 | ||
3981 | while (POINTER_TYPE_P (type)) | |
3982 | type = TREE_TYPE (type); | |
3983 | ||
3984 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3985 | { | |
3986 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3987 | ||
3988 | while (POINTER_TYPE_P (etype)) | |
3989 | etype = TREE_TYPE (etype); | |
3990 | ||
3991 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3992 | } | |
3993 | ||
3994 | gfc_trans_vla_type_sizes_1 (type, body); | |
3995 | } | |
3996 | ||
6de9cd9a | 3997 | |
b7b184a8 | 3998 | /* Initialize a derived type by building an lvalue from the symbol |
2b56d6a4 TB |
3999 | and using trans_assignment to do the work. Set dealloc to false |
4000 | if no deallocation prior the assignment is needed. */ | |
0019d498 DK |
4001 | void |
4002 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
d3837072 | 4003 | { |
b7b184a8 | 4004 | gfc_expr *e; |
d3837072 PT |
4005 | tree tmp; |
4006 | tree present; | |
4007 | ||
0019d498 DK |
4008 | gcc_assert (block); |
4009 | ||
276515e6 PT |
4010 | /* Initialization of PDTs is done elsewhere. */ |
4011 | if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
4012 | return; | |
4013 | ||
b7b184a8 PT |
4014 | gcc_assert (!sym->attr.allocatable); |
4015 | gfc_set_sym_referenced (sym); | |
4016 | e = gfc_lval_expr_from_sym (sym); | |
2b56d6a4 | 4017 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
ba6f7079 TB |
4018 | if (sym->attr.dummy && (sym->attr.optional |
4019 | || sym->ns->proc_name->attr.entry_master)) | |
d3837072 | 4020 | { |
b7b184a8 | 4021 | present = gfc_conv_expr_present (sym); |
5d44e5c8 TB |
4022 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
4023 | tmp, build_empty_stmt (input_location)); | |
d3837072 | 4024 | } |
0019d498 | 4025 | gfc_add_expr_to_block (block, tmp); |
b7b184a8 | 4026 | gfc_free_expr (e); |
d3837072 PT |
4027 | } |
4028 | ||
4029 | ||
2c69d527 PT |
4030 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
4031 | them their default initializer, if they do not have allocatable | |
1cc0e193 | 4032 | components, they have their allocatable components deallocated. */ |
2c69d527 | 4033 | |
0019d498 DK |
4034 | static void |
4035 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
b7b184a8 | 4036 | { |
0019d498 | 4037 | stmtblock_t init; |
b7b184a8 | 4038 | gfc_formal_arglist *f; |
2c69d527 | 4039 | tree tmp; |
8a272531 | 4040 | tree present; |
b7b184a8 | 4041 | |
0019d498 | 4042 | gfc_init_block (&init); |
4cbc9039 | 4043 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
b7b184a8 | 4044 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
758e12af TB |
4045 | && !f->sym->attr.pointer |
4046 | && f->sym->ts.type == BT_DERIVED) | |
2c69d527 | 4047 | { |
ed3f1ef2 TB |
4048 | tmp = NULL_TREE; |
4049 | ||
4050 | /* Note: Allocatables are excluded as they are already handled | |
4051 | by the caller. */ | |
4052 | if (!f->sym->attr.allocatable | |
4053 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
2c69d527 | 4054 | { |
ed3f1ef2 TB |
4055 | stmtblock_t block; |
4056 | gfc_expr *e; | |
4057 | ||
4058 | gfc_init_block (&block); | |
4059 | f->sym->attr.referenced = 1; | |
4060 | e = gfc_lval_expr_from_sym (f->sym); | |
4061 | gfc_add_finalizer_call (&block, e); | |
4062 | gfc_free_expr (e); | |
4063 | tmp = gfc_finish_block (&block); | |
4064 | } | |
8a272531 | 4065 | |
ed3f1ef2 TB |
4066 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4067 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4068 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4069 | f->sym->backend_decl, | |
4070 | f->sym->as ? f->sym->as->rank : 0); | |
8a272531 | 4071 | |
ed3f1ef2 TB |
4072 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4073 | || f->sym->ns->proc_name->attr.entry_master)) | |
4074 | { | |
4075 | present = gfc_conv_expr_present (f->sym); | |
4076 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4077 | present, tmp, build_empty_stmt (input_location)); | |
2c69d527 | 4078 | } |
ed3f1ef2 TB |
4079 | |
4080 | if (tmp != NULL_TREE) | |
4081 | gfc_add_expr_to_block (&init, tmp); | |
4082 | else if (f->sym->value && !f->sym->attr.allocatable) | |
0019d498 | 4083 | gfc_init_default_dt (f->sym, &init, true); |
2c69d527 | 4084 | } |
c7f17815 JW |
4085 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4086 | && f->sym->ts.type == BT_CLASS | |
4087 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
ed3f1ef2 | 4088 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c7f17815 | 4089 | { |
ed3f1ef2 TB |
4090 | stmtblock_t block; |
4091 | gfc_expr *e; | |
4092 | ||
4093 | gfc_init_block (&block); | |
4094 | f->sym->attr.referenced = 1; | |
4095 | e = gfc_lval_expr_from_sym (f->sym); | |
4096 | gfc_add_finalizer_call (&block, e); | |
4097 | gfc_free_expr (e); | |
4098 | tmp = gfc_finish_block (&block); | |
c7f17815 JW |
4099 | |
4100 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4101 | { | |
4102 | present = gfc_conv_expr_present (f->sym); | |
4103 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4104 | present, tmp, | |
4105 | build_empty_stmt (input_location)); | |
4106 | } | |
4107 | ||
4108 | gfc_add_expr_to_block (&init, tmp); | |
4109 | } | |
b7b184a8 | 4110 | |
0019d498 | 4111 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
b7b184a8 PT |
4112 | } |
4113 | ||
d3837072 | 4114 | |
ce1ff48e PT |
4115 | /* Helper function to manage deferred string lengths. */ |
4116 | ||
4117 | static tree | |
4118 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4119 | locus *loc) | |
4120 | { | |
4121 | tree tmp; | |
4122 | ||
4123 | /* Character length passed by reference. */ | |
4124 | tmp = sym->ts.u.cl->passed_length; | |
4125 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4126 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4127 | ||
4128 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4129 | /* Zero the string length when entering the scope. */ | |
4130 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4131 | build_int_cst (gfc_charlen_type_node, 0)); | |
4132 | else | |
4133 | { | |
4134 | tree tmp2; | |
4135 | ||
4136 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4137 | gfc_charlen_type_node, | |
4138 | sym->ts.u.cl->backend_decl, tmp); | |
4139 | if (sym->attr.optional) | |
4140 | { | |
4141 | tree present = gfc_conv_expr_present (sym); | |
4142 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4143 | void_type_node, present, tmp2, | |
4144 | build_empty_stmt (input_location)); | |
4145 | } | |
4146 | gfc_add_expr_to_block (init, tmp2); | |
4147 | } | |
4148 | ||
4149 | gfc_restore_backend_locus (loc); | |
4150 | ||
4151 | /* Pass the final character length back. */ | |
4152 | if (sym->attr.intent != INTENT_IN) | |
4153 | { | |
4154 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4155 | gfc_charlen_type_node, tmp, | |
4156 | sym->ts.u.cl->backend_decl); | |
4157 | if (sym->attr.optional) | |
4158 | { | |
4159 | tree present = gfc_conv_expr_present (sym); | |
4160 | tmp = build3_loc (input_location, COND_EXPR, | |
4161 | void_type_node, present, tmp, | |
4162 | build_empty_stmt (input_location)); | |
4163 | } | |
4164 | } | |
4165 | else | |
4166 | tmp = NULL_TREE; | |
4167 | ||
4168 | return tmp; | |
4169 | } | |
4170 | ||
a6b22eea PT |
4171 | |
4172 | /* Get the result expression for a procedure. */ | |
4173 | ||
4174 | static tree | |
4175 | get_proc_result (gfc_symbol* sym) | |
4176 | { | |
4177 | if (sym->attr.subroutine || sym == sym->result) | |
4178 | { | |
4179 | if (current_fake_result_decl != NULL) | |
4180 | return TREE_VALUE (current_fake_result_decl); | |
4181 | ||
4182 | return NULL_TREE; | |
4183 | } | |
4184 | ||
4185 | return sym->result->backend_decl; | |
4186 | } | |
4187 | ||
4188 | ||
6de9cd9a DN |
4189 | /* Generate function entry and exit code, and add it to the function body. |
4190 | This includes: | |
f8d0aee5 | 4191 | Allocation and initialization of array variables. |
6de9cd9a | 4192 | Allocation of character string variables. |
910450c1 | 4193 | Initialization and possibly repacking of dummy arrays. |
1517fd57 | 4194 | Initialization of ASSIGN statement auxiliary variable. |
571d54de | 4195 | Initialization of ASSOCIATE names. |
1517fd57 | 4196 | Automatic deallocation. */ |
6de9cd9a | 4197 | |
d74d8807 DK |
4198 | void |
4199 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
6de9cd9a DN |
4200 | { |
4201 | locus loc; | |
4202 | gfc_symbol *sym; | |
417ab240 | 4203 | gfc_formal_arglist *f; |
0019d498 | 4204 | stmtblock_t tmpblock; |
7114edca | 4205 | bool seen_trans_deferred_array = false; |
5bab4c96 | 4206 | bool is_pdt_type = false; |
8d51f26f PT |
4207 | tree tmp = NULL; |
4208 | gfc_expr *e; | |
4209 | gfc_se se; | |
4210 | stmtblock_t init; | |
6de9cd9a DN |
4211 | |
4212 | /* Deal with implicit return variables. Explicit return variables will | |
4213 | already have been added. */ | |
4214 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4215 | { | |
4216 | if (!current_fake_result_decl) | |
4217 | { | |
d198b59a JJ |
4218 | gfc_entry_list *el = NULL; |
4219 | if (proc_sym->attr.entry_master) | |
4220 | { | |
4221 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4222 | if (el->sym != el->sym->result) | |
4223 | break; | |
4224 | } | |
766d0c8c | 4225 | /* TODO: move to the appropriate place in resolve.c. */ |
134d2354 | 4226 | if (warn_return_type > 0 && el == NULL) |
48749dbc MLI |
4227 | gfc_warning (OPT_Wreturn_type, |
4228 | "Return value of function %qs at %L not set", | |
766d0c8c | 4229 | proc_sym->name, &proc_sym->declared_at); |
6de9cd9a | 4230 | } |
d198b59a | 4231 | else if (proc_sym->as) |
6de9cd9a | 4232 | { |
417ab240 | 4233 | tree result = TREE_VALUE (current_fake_result_decl); |
8e9218f2 AV |
4234 | gfc_save_backend_locus (&loc); |
4235 | gfc_set_backend_locus (&proc_sym->declared_at); | |
d74d8807 | 4236 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
f5f701ad PT |
4237 | |
4238 | /* An automatic character length, pointer array result. */ | |
4239 | if (proc_sym->ts.type == BT_CHARACTER | |
d168c883 | 4240 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
ce1ff48e PT |
4241 | { |
4242 | tmp = NULL; | |
4243 | if (proc_sym->ts.deferred) | |
4244 | { | |
ce1ff48e PT |
4245 | gfc_start_block (&init); |
4246 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4247 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4248 | } | |
4249 | else | |
4250 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4251 | } | |
6de9cd9a DN |
4252 | } |
4253 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4254 | { | |
8d51f26f PT |
4255 | if (proc_sym->ts.deferred) |
4256 | { | |
4257 | tmp = NULL; | |
ceccaacf TB |
4258 | gfc_save_backend_locus (&loc); |
4259 | gfc_set_backend_locus (&proc_sym->declared_at); | |
8d51f26f PT |
4260 | gfc_start_block (&init); |
4261 | /* Zero the string length on entry. */ | |
4262 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4263 | build_int_cst (gfc_charlen_type_node, 0)); | |
4264 | /* Null the pointer. */ | |
4265 | e = gfc_lval_expr_from_sym (proc_sym); | |
4266 | gfc_init_se (&se, NULL); | |
4267 | se.want_pointer = 1; | |
4268 | gfc_conv_expr (&se, e); | |
4269 | gfc_free_expr (e); | |
4270 | tmp = se.expr; | |
4271 | gfc_add_modify (&init, tmp, | |
4272 | fold_convert (TREE_TYPE (se.expr), | |
4273 | null_pointer_node)); | |
ceccaacf | 4274 | gfc_restore_backend_locus (&loc); |
8d51f26f PT |
4275 | |
4276 | /* Pass back the string length on exit. */ | |
afbc5ae8 | 4277 | tmp = proc_sym->ts.u.cl->backend_decl; |
ce1ff48e PT |
4278 | if (TREE_CODE (tmp) != INDIRECT_REF |
4279 | && proc_sym->ts.u.cl->passed_length) | |
afbc5ae8 | 4280 | { |
b62df3bf PT |
4281 | tmp = proc_sym->ts.u.cl->passed_length; |
4282 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4283 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4284 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4285 | gfc_charlen_type_node, tmp, | |
4286 | proc_sym->ts.u.cl->backend_decl); | |
afbc5ae8 PT |
4287 | } |
4288 | else | |
4289 | tmp = NULL_TREE; | |
4290 | ||
8d51f26f PT |
4291 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4292 | } | |
d168c883 | 4293 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
d74d8807 | 4294 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
6de9cd9a DN |
4295 | } |
4296 | else | |
c61819ff | 4297 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
6de9cd9a | 4298 | } |
a6b22eea PT |
4299 | else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym)) |
4300 | { | |
4301 | /* Nullify explicit return class arrays on entry. */ | |
4302 | tree type; | |
4303 | tmp = get_proc_result (proc_sym); | |
4304 | if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp))) | |
4305 | { | |
4306 | gfc_start_block (&init); | |
4307 | tmp = gfc_class_data_get (tmp); | |
4308 | type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp)); | |
4309 | gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0)); | |
4310 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); | |
4311 | } | |
4312 | } | |
4313 | ||
6de9cd9a | 4314 | |
d3837072 PT |
4315 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4316 | should be done here so that the offsets and lbounds of arrays | |
4317 | are available. */ | |
ceccaacf TB |
4318 | gfc_save_backend_locus (&loc); |
4319 | gfc_set_backend_locus (&proc_sym->declared_at); | |
d74d8807 | 4320 | init_intent_out_dt (proc_sym, block); |
ceccaacf | 4321 | gfc_restore_backend_locus (&loc); |
d3837072 | 4322 | |
6de9cd9a DN |
4323 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4324 | { | |
ea8b72e6 TB |
4325 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4326 | && (sym->ts.u.derived->attr.alloc_comp | |
4327 | || gfc_is_finalizable (sym->ts.u.derived, | |
4328 | NULL)); | |
571d54de | 4329 | if (sym->assoc) |
6312ef45 JW |
4330 | continue; |
4331 | ||
5bab4c96 PT |
4332 | if (sym->ts.type == BT_DERIVED |
4333 | && sym->ts.u.derived | |
4334 | && sym->ts.u.derived->attr.pdt_type) | |
4335 | { | |
4336 | is_pdt_type = true; | |
4337 | gfc_init_block (&tmpblock); | |
4338 | if (!(sym->attr.dummy | |
4339 | || sym->attr.pointer | |
4340 | || sym->attr.allocatable)) | |
4341 | { | |
4342 | tmp = gfc_allocate_pdt_comp (sym->ts.u.derived, | |
4343 | sym->backend_decl, | |
4344 | sym->as ? sym->as->rank : 0, | |
4345 | sym->param_list); | |
4346 | gfc_add_expr_to_block (&tmpblock, tmp); | |
96acdb8d PT |
4347 | if (!sym->attr.result) |
4348 | tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived, | |
4349 | sym->backend_decl, | |
4350 | sym->as ? sym->as->rank : 0); | |
4351 | else | |
4352 | tmp = NULL_TREE; | |
5bab4c96 PT |
4353 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4354 | } | |
4355 | else if (sym->attr.dummy) | |
4356 | { | |
4357 | tmp = gfc_check_pdt_dummy (sym->ts.u.derived, | |
4358 | sym->backend_decl, | |
4359 | sym->as ? sym->as->rank : 0, | |
4360 | sym->param_list); | |
4361 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4362 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4363 | } | |
4364 | } | |
4365 | else if (sym->ts.type == BT_CLASS | |
4366 | && CLASS_DATA (sym)->ts.u.derived | |
4367 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type) | |
4368 | { | |
4369 | gfc_component *data = CLASS_DATA (sym); | |
4370 | is_pdt_type = true; | |
4371 | gfc_init_block (&tmpblock); | |
4372 | if (!(sym->attr.dummy | |
4373 | || CLASS_DATA (sym)->attr.pointer | |
4374 | || CLASS_DATA (sym)->attr.allocatable)) | |
4375 | { | |
4376 | tmp = gfc_class_data_get (sym->backend_decl); | |
4377 | tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp, | |
4378 | data->as ? data->as->rank : 0, | |
4379 | sym->param_list); | |
4380 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4381 | tmp = gfc_class_data_get (sym->backend_decl); | |
96acdb8d PT |
4382 | if (!sym->attr.result) |
4383 | tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp, | |
4384 | data->as ? data->as->rank : 0); | |
4385 | else | |
4386 | tmp = NULL_TREE; | |
5bab4c96 PT |
4387 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4388 | } | |
4389 | else if (sym->attr.dummy) | |
4390 | { | |
4391 | tmp = gfc_class_data_get (sym->backend_decl); | |
4392 | tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp, | |
4393 | data->as ? data->as->rank : 0, | |
4394 | sym->param_list); | |
4395 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4396 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4397 | } | |
4398 | } | |
4399 | ||
ff3598bc | 4400 | if (sym->attr.pointer && sym->attr.dimension |
22d07ec2 | 4401 | && sym->attr.save == SAVE_NONE |
ff3598bc PT |
4402 | && !sym->attr.use_assoc |
4403 | && !sym->attr.host_assoc | |
4404 | && !sym->attr.dummy | |
4405 | && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))) | |
0c1e1df8 JJ |
4406 | { |
4407 | gfc_init_block (&tmpblock); | |
ff3598bc PT |
4408 | gfc_conv_descriptor_span_set (&tmpblock, sym->backend_decl, |
4409 | build_int_cst (gfc_array_index_type, 0)); | |
0c1e1df8 JJ |
4410 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
4411 | NULL_TREE); | |
4412 | } | |
4413 | ||
e1e3b9d3 | 4414 | if (sym->ts.type == BT_CLASS |
203c7ebf | 4415 | && (sym->attr.save || flag_max_stack_var_size == 0) |
f118468a TB |
4416 | && CLASS_DATA (sym)->attr.allocatable) |
4417 | { | |
4418 | tree vptr; | |
4419 | ||
4420 | if (UNLIMITED_POLY (sym)) | |
4421 | vptr = null_pointer_node; | |
4422 | else | |
4423 | { | |
4424 | gfc_symbol *vsym; | |
4425 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4426 | vptr = gfc_get_symbol_decl (vsym); | |
4427 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4428 | } | |
4429 | ||
4430 | if (CLASS_DATA (sym)->attr.dimension | |
4431 | || (CLASS_DATA (sym)->attr.codimension | |
f19626cf | 4432 | && flag_coarray != GFC_FCOARRAY_LIB)) |
f118468a TB |
4433 | { |
4434 | tmp = gfc_class_data_get (sym->backend_decl); | |
4435 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4436 | } | |
4437 | else | |
4438 | tmp = null_pointer_node; | |
4439 | ||
4440 | DECL_INITIAL (sym->backend_decl) | |
4441 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4442 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4443 | } | |
ce1ff48e PT |
4444 | else if ((sym->attr.dimension || sym->attr.codimension |
4445 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
6de9cd9a | 4446 | { |
f3b0bb7a AV |
4447 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4448 | symbol_attribute *array_attr; | |
4449 | gfc_array_spec *as; | |
ce1ff48e | 4450 | array_type type_of_array; |
f3b0bb7a AV |
4451 | |
4452 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4453 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4454 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
ce1ff48e PT |
4455 | type_of_array = as->type; |
4456 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4457 | type_of_array = AS_EXPLICIT; | |
4458 | switch (type_of_array) | |
6de9cd9a DN |
4459 | { |
4460 | case AS_EXPLICIT: | |
4461 | if (sym->attr.dummy || sym->attr.result) | |
d74d8807 | 4462 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
f3b0bb7a AV |
4463 | /* Allocatable and pointer arrays need to processed |
4464 | explicitly. */ | |
4465 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4466 | || (sym->ts.type == BT_CLASS | |
4467 | && CLASS_DATA (sym)->attr.class_pointer) | |
4468 | || array_attr->allocatable) | |
6de9cd9a DN |
4469 | { |
4470 | if (TREE_STATIC (sym->backend_decl)) | |
ceccaacf TB |
4471 | { |
4472 | gfc_save_backend_locus (&loc); | |
4473 | gfc_set_backend_locus (&sym->declared_at); | |
4474 | gfc_trans_static_array_pointer (sym); | |
4475 | gfc_restore_backend_locus (&loc); | |
4476 | } | |
6de9cd9a | 4477 | else |
7114edca PT |
4478 | { |
4479 | seen_trans_deferred_array = true; | |
d74d8807 | 4480 | gfc_trans_deferred_array (sym, block); |
7114edca | 4481 | } |
6de9cd9a | 4482 | } |
f3b0bb7a AV |
4483 | else if (sym->attr.codimension |
4484 | && TREE_STATIC (sym->backend_decl)) | |
9f3761c5 TB |
4485 | { |
4486 | gfc_init_block (&tmpblock); | |
4487 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4488 | &tmpblock, sym); | |
4489 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4490 | NULL_TREE); | |
4491 | continue; | |
4492 | } | |
b0936265 | 4493 | else |
6de9cd9a | 4494 | { |
ceccaacf TB |
4495 | gfc_save_backend_locus (&loc); |
4496 | gfc_set_backend_locus (&sym->declared_at); | |
4497 | ||
ea8b72e6 | 4498 | if (alloc_comp_or_fini) |
7114edca PT |
4499 | { |
4500 | seen_trans_deferred_array = true; | |
d74d8807 | 4501 | gfc_trans_deferred_array (sym, block); |
7114edca | 4502 | } |
b7b184a8 PT |
4503 | else if (sym->ts.type == BT_DERIVED |
4504 | && sym->value | |
4505 | && !sym->attr.data | |
4506 | && sym->attr.save == SAVE_NONE) | |
0019d498 DK |
4507 | { |
4508 | gfc_start_block (&tmpblock); | |
4509 | gfc_init_default_dt (sym, &tmpblock, false); | |
d74d8807 | 4510 | gfc_add_init_cleanup (block, |
0019d498 DK |
4511 | gfc_finish_block (&tmpblock), |
4512 | NULL_TREE); | |
4513 | } | |
7114edca | 4514 | |
0019d498 | 4515 | gfc_trans_auto_array_allocation (sym->backend_decl, |
d74d8807 | 4516 | sym, block); |
363aab21 | 4517 | gfc_restore_backend_locus (&loc); |
6de9cd9a DN |
4518 | } |
4519 | break; | |
4520 | ||
4521 | case AS_ASSUMED_SIZE: | |
4522 | /* Must be a dummy parameter. */ | |
f3b0bb7a | 4523 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
6de9cd9a DN |
4524 | |
4525 | /* We should always pass assumed size arrays the g77 way. */ | |
b3aefde2 | 4526 | if (sym->attr.dummy) |
d74d8807 | 4527 | gfc_trans_g77_array (sym, block); |
0019d498 | 4528 | break; |
6de9cd9a DN |
4529 | |
4530 | case AS_ASSUMED_SHAPE: | |
4531 | /* Must be a dummy parameter. */ | |
6e45f57b | 4532 | gcc_assert (sym->attr.dummy); |
6de9cd9a | 4533 | |
d74d8807 | 4534 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
6de9cd9a DN |
4535 | break; |
4536 | ||
c62c6622 | 4537 | case AS_ASSUMED_RANK: |
6de9cd9a | 4538 | case AS_DEFERRED: |
7114edca | 4539 | seen_trans_deferred_array = true; |
d74d8807 | 4540 | gfc_trans_deferred_array (sym, block); |
ce1ff48e PT |
4541 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4542 | && sym->attr.result) | |
4543 | { | |
4544 | gfc_start_block (&init); | |
4545 | gfc_save_backend_locus (&loc); | |
4546 | gfc_set_backend_locus (&sym->declared_at); | |
4547 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4548 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4549 | } | |
6de9cd9a DN |
4550 | break; |
4551 | ||
4552 | default: | |
6e45f57b | 4553 | gcc_unreachable (); |
6de9cd9a | 4554 | } |
ea8b72e6 | 4555 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
d74d8807 | 4556 | gfc_trans_deferred_array (sym, block); |
6de9cd9a | 4557 | } |
c49ea23d PT |
4558 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4559 | && (sym->ts.type == BT_CLASS | |
102344e2 | 4560 | && CLASS_DATA (sym)->attr.class_pointer)) |
1b26c26b | 4561 | continue; |
8d51f26f | 4562 | else if ((!sym->attr.dummy || sym->ts.deferred) |
25cbe58f | 4563 | && (sym->attr.allocatable |
ce1ff48e | 4564 | || (sym->attr.pointer && sym->attr.result) |
25cbe58f TB |
4565 | || (sym->ts.type == BT_CLASS |
4566 | && CLASS_DATA (sym)->attr.allocatable))) | |
1517fd57 | 4567 | { |
203c7ebf | 4568 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
64b33a7e | 4569 | { |
5d81ddd0 TB |
4570 | tree descriptor = NULL_TREE; |
4571 | ||
ceccaacf TB |
4572 | gfc_save_backend_locus (&loc); |
4573 | gfc_set_backend_locus (&sym->declared_at); | |
0019d498 | 4574 | gfc_start_block (&init); |
8d51f26f | 4575 | |
ce1ff48e | 4576 | if (!sym->attr.pointer) |
8d51f26f | 4577 | { |
ce1ff48e PT |
4578 | /* Nullify and automatic deallocation of allocatable |
4579 | scalars. */ | |
4580 | e = gfc_lval_expr_from_sym (sym); | |
4581 | if (sym->ts.type == BT_CLASS) | |
4582 | gfc_add_data_component (e); | |
4583 | ||
4584 | gfc_init_se (&se, NULL); | |
4585 | if (sym->ts.type != BT_CLASS | |
4586 | || sym->ts.u.derived->attr.dimension | |
4587 | || sym->ts.u.derived->attr.codimension) | |
48f316ea | 4588 | { |
ce1ff48e PT |
4589 | se.want_pointer = 1; |
4590 | gfc_conv_expr (&se, e); | |
4591 | } | |
4592 | else if (sym->ts.type == BT_CLASS | |
4593 | && !CLASS_DATA (sym)->attr.dimension | |
4594 | && !CLASS_DATA (sym)->attr.codimension) | |
4595 | { | |
4596 | se.want_pointer = 1; | |
4597 | gfc_conv_expr (&se, e); | |
48f316ea | 4598 | } |
8d51f26f | 4599 | else |
48f316ea | 4600 | { |
ce1ff48e PT |
4601 | se.descriptor_only = 1; |
4602 | gfc_conv_expr (&se, e); | |
4603 | descriptor = se.expr; | |
4604 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4605 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
48f316ea | 4606 | } |
ce1ff48e | 4607 | gfc_free_expr (e); |
8d51f26f | 4608 | |
ce1ff48e | 4609 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
48f316ea | 4610 | { |
ce1ff48e | 4611 | /* Nullify when entering the scope. */ |
48f316ea | 4612 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
ce1ff48e PT |
4613 | TREE_TYPE (se.expr), se.expr, |
4614 | fold_convert (TREE_TYPE (se.expr), | |
4615 | null_pointer_node)); | |
48f316ea TB |
4616 | if (sym->attr.optional) |
4617 | { | |
4618 | tree present = gfc_conv_expr_present (sym); | |
4619 | tmp = build3_loc (input_location, COND_EXPR, | |
4620 | void_type_node, present, tmp, | |
4621 | build_empty_stmt (input_location)); | |
4622 | } | |
ce1ff48e | 4623 | gfc_add_expr_to_block (&init, tmp); |
48f316ea | 4624 | } |
8d51f26f | 4625 | } |
ce1ff48e PT |
4626 | |
4627 | if ((sym->attr.dummy || sym->attr.result) | |
4628 | && sym->ts.type == BT_CHARACTER | |
4629 | && sym->ts.deferred | |
4630 | && sym->ts.u.cl->passed_length) | |
4631 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
ceccaacf | 4632 | else |
77dacf9d PT |
4633 | { |
4634 | gfc_restore_backend_locus (&loc); | |
4635 | tmp = NULL_TREE; | |
4636 | } | |
64b33a7e TB |
4637 | |
4638 | /* Deallocate when leaving the scope. Nullifying is not | |
4639 | needed. */ | |
ce1ff48e | 4640 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
ef292537 | 4641 | && !sym->ns->proc_name->attr.is_main_program) |
5d81ddd0 TB |
4642 | { |
4643 | if (sym->ts.type == BT_CLASS | |
4644 | && CLASS_DATA (sym)->attr.codimension) | |
4645 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4646 | NULL_TREE, NULL_TREE, | |
4647 | NULL_TREE, true, NULL, | |
ba85c8c3 | 4648 | GFC_CAF_COARRAY_ANALYZE); |
5d81ddd0 | 4649 | else |
76c1a7ec TB |
4650 | { |
4651 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
ba85c8c3 AV |
4652 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4653 | NULL_TREE, | |
4654 | NULL_TREE, | |
4655 | true, expr, | |
4656 | sym->ts); | |
76c1a7ec TB |
4657 | gfc_free_expr (expr); |
4658 | } | |
5d81ddd0 | 4659 | } |
ce1ff48e | 4660 | |
8c077737 JW |
4661 | if (sym->ts.type == BT_CLASS) |
4662 | { | |
4663 | /* Initialize _vptr to declared type. */ | |
8b704316 | 4664 | gfc_symbol *vtab; |
8c077737 | 4665 | tree rhs; |
ceccaacf TB |
4666 | |
4667 | gfc_save_backend_locus (&loc); | |
4668 | gfc_set_backend_locus (&sym->declared_at); | |
8c077737 JW |
4669 | e = gfc_lval_expr_from_sym (sym); |
4670 | gfc_add_vptr_component (e); | |
4671 | gfc_init_se (&se, NULL); | |
4672 | se.want_pointer = 1; | |
4673 | gfc_conv_expr (&se, e); | |
4674 | gfc_free_expr (e); | |
8b704316 PT |
4675 | if (UNLIMITED_POLY (sym)) |
4676 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4677 | else | |
4678 | { | |
4679 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4680 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4681 | gfc_get_symbol_decl (vtab)); | |
4682 | } | |
8c077737 | 4683 | gfc_add_modify (&init, se.expr, rhs); |
ceccaacf | 4684 | gfc_restore_backend_locus (&loc); |
8c077737 JW |
4685 | } |
4686 | ||
d74d8807 | 4687 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
64b33a7e | 4688 | } |
1517fd57 | 4689 | } |
8d51f26f PT |
4690 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4691 | { | |
4692 | tree tmp = NULL; | |
4693 | stmtblock_t init; | |
4694 | ||
4695 | /* If we get to here, all that should be left are pointers. */ | |
4696 | gcc_assert (sym->attr.pointer); | |
4697 | ||
4698 | if (sym->attr.dummy) | |
4699 | { | |
4700 | gfc_start_block (&init); | |
ce1ff48e PT |
4701 | gfc_save_backend_locus (&loc); |
4702 | gfc_set_backend_locus (&sym->declared_at); | |
4703 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
8d51f26f PT |
4704 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4705 | } | |
4706 | } | |
e69afb29 SK |
4707 | else if (sym->ts.deferred) |
4708 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
ea8b72e6 | 4709 | else if (alloc_comp_or_fini) |
d74d8807 | 4710 | gfc_trans_deferred_array (sym, block); |
6de9cd9a DN |
4711 | else if (sym->ts.type == BT_CHARACTER) |
4712 | { | |
363aab21 | 4713 | gfc_save_backend_locus (&loc); |
6de9cd9a DN |
4714 | gfc_set_backend_locus (&sym->declared_at); |
4715 | if (sym->attr.dummy || sym->attr.result) | |
d74d8807 | 4716 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
6de9cd9a | 4717 | else |
d74d8807 | 4718 | gfc_trans_auto_character_variable (sym, block); |
363aab21 | 4719 | gfc_restore_backend_locus (&loc); |
6de9cd9a | 4720 | } |
910450c1 FW |
4721 | else if (sym->attr.assign) |
4722 | { | |
363aab21 | 4723 | gfc_save_backend_locus (&loc); |
910450c1 | 4724 | gfc_set_backend_locus (&sym->declared_at); |
d74d8807 | 4725 | gfc_trans_assign_aux_var (sym, block); |
363aab21 | 4726 | gfc_restore_backend_locus (&loc); |
910450c1 | 4727 | } |
b7b184a8 PT |
4728 | else if (sym->ts.type == BT_DERIVED |
4729 | && sym->value | |
4730 | && !sym->attr.data | |
4731 | && sym->attr.save == SAVE_NONE) | |
0019d498 DK |
4732 | { |
4733 | gfc_start_block (&tmpblock); | |
4734 | gfc_init_default_dt (sym, &tmpblock, false); | |
d74d8807 | 4735 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
0019d498 DK |
4736 | NULL_TREE); |
4737 | } | |
5bab4c96 | 4738 | else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type) |
6e45f57b | 4739 | gcc_unreachable (); |
6de9cd9a DN |
4740 | } |
4741 | ||
0019d498 | 4742 | gfc_init_block (&tmpblock); |
417ab240 | 4743 | |
4cbc9039 | 4744 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
08113c73 PT |
4745 | { |
4746 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4747 | { | |
bc21d315 JW |
4748 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4749 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
0019d498 | 4750 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
08113c73 | 4751 | } |
08113c73 | 4752 | } |
417ab240 JJ |
4753 | |
4754 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4755 | && current_fake_result_decl != NULL) | |
4756 | { | |
bc21d315 JW |
4757 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4758 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
0019d498 | 4759 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
417ab240 JJ |
4760 | } |
4761 | ||
d74d8807 | 4762 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
6de9cd9a DN |
4763 | } |
4764 | ||
ce1ff48e | 4765 | |
ca752f39 | 4766 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
a64f5186 | 4767 | { |
2a22f99c | 4768 | typedef const char *compare_type; |
a64f5186 | 4769 | |
2a22f99c TS |
4770 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4771 | static bool | |
4772 | equal (module_htab_entry *a, const char *b) | |
4773 | { | |
4774 | return !strcmp (a->name, b); | |
4775 | } | |
4776 | }; | |
4777 | ||
4778 | static GTY (()) hash_table<module_hasher> *module_htab; | |
a64f5186 JJ |
4779 | |
4780 | /* Hash and equality functions for module_htab's decls. */ | |
4781 | ||
2a22f99c TS |
4782 | hashval_t |
4783 | module_decl_hasher::hash (tree t) | |
a64f5186 | 4784 | { |
a64f5186 JJ |
4785 | const_tree n = DECL_NAME (t); |
4786 | if (n == NULL_TREE) | |
4787 | n = TYPE_NAME (TREE_TYPE (t)); | |
afdda4b4 | 4788 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
a64f5186 JJ |
4789 | } |
4790 | ||
2a22f99c TS |
4791 | bool |
4792 | module_decl_hasher::equal (tree t1, const char *x2) | |
a64f5186 | 4793 | { |
a64f5186 JJ |
4794 | const_tree n1 = DECL_NAME (t1); |
4795 | if (n1 == NULL_TREE) | |
4796 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2a22f99c | 4797 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
a64f5186 JJ |
4798 | } |
4799 | ||
4800 | struct module_htab_entry * | |
4801 | gfc_find_module (const char *name) | |
4802 | { | |
a64f5186 | 4803 | if (! module_htab) |
2a22f99c | 4804 | module_htab = hash_table<module_hasher>::create_ggc (10); |
a64f5186 | 4805 | |
2a22f99c TS |
4806 | module_htab_entry **slot |
4807 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
a64f5186 JJ |
4808 | if (*slot == NULL) |
4809 | { | |
766090c2 | 4810 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
a64f5186 | 4811 | |
51f03c6b | 4812 | entry->name = gfc_get_string ("%s", name); |
2a22f99c TS |
4813 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4814 | *slot = entry; | |
a64f5186 | 4815 | } |
2a22f99c | 4816 | return *slot; |
a64f5186 JJ |
4817 | } |
4818 | ||
4819 | void | |
4820 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4821 | { | |
a64f5186 JJ |
4822 | const char *name; |
4823 | ||
4824 | if (DECL_NAME (decl)) | |
4825 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4826 | else | |
4827 | { | |
4828 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4829 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4830 | } | |
2a22f99c TS |
4831 | tree *slot |
4832 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4833 | INSERT); | |
a64f5186 | 4834 | if (*slot == NULL) |
2a22f99c | 4835 | *slot = decl; |
a64f5186 JJ |
4836 | } |
4837 | ||
5f673c6a TB |
4838 | |
4839 | /* Generate debugging symbols for namelists. This function must come after | |
4840 | generate_local_decl to ensure that the variables in the namelist are | |
4841 | already declared. */ | |
4842 | ||
4843 | static tree | |
4844 | generate_namelist_decl (gfc_symbol * sym) | |
4845 | { | |
4846 | gfc_namelist *nml; | |
4847 | tree decl; | |
4848 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4849 | ||
4850 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4851 | for (nml = sym->namelist; nml; nml = nml->next) | |
4852 | { | |
4853 | if (nml->sym->backend_decl == NULL_TREE) | |
4854 | { | |
4855 | nml->sym->attr.referenced = 1; | |
4856 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4857 | } | |
96d91784 | 4858 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
5f673c6a TB |
4859 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4860 | } | |
4861 | ||
4862 | decl = make_node (NAMELIST_DECL); | |
4863 | TREE_TYPE (decl) = void_type_node; | |
4864 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4865 | DECL_NAME (decl) = get_identifier (sym->name); | |
4866 | return decl; | |
4867 | } | |
4868 | ||
4869 | ||
6de9cd9a DN |
4870 | /* Output an initialized decl for a module variable. */ |
4871 | ||
4872 | static void | |
4873 | gfc_create_module_variable (gfc_symbol * sym) | |
4874 | { | |
4875 | tree decl; | |
6de9cd9a | 4876 | |
1a492601 PT |
4877 | /* Module functions with alternate entries are dealt with later and |
4878 | would get caught by the next condition. */ | |
4879 | if (sym->attr.entry) | |
4880 | return; | |
4881 | ||
a8b3b0b6 CR |
4882 | /* Make sure we convert the types of the derived types from iso_c_binding |
4883 | into (void *). */ | |
4884 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4885 | && sym->ts.type == BT_DERIVED) | |
4886 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4887 | ||
f6288c24 | 4888 | if (gfc_fl_struct (sym->attr.flavor) |
a64f5186 JJ |
4889 | && sym->backend_decl |
4890 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4891 | { | |
4892 | decl = sym->backend_decl; | |
4893 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
b8849663 | 4894 | |
cded7919 | 4895 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
b8849663 PT |
4896 | { |
4897 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4898 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4899 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4900 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4901 | == sym->ns->proc_name->backend_decl); | |
4902 | } | |
a64f5186 JJ |
4903 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4904 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4905 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4906 | } | |
4907 | ||
6e0d2de7 JW |
4908 | /* Only output variables, procedure pointers and array valued, |
4909 | or derived type, parameters. */ | |
6de9cd9a | 4910 | if (sym->attr.flavor != FL_VARIABLE |
fdc55763 | 4911 | && !(sym->attr.flavor == FL_PARAMETER |
6e0d2de7 JW |
4912 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4913 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
6de9cd9a DN |
4914 | return; |
4915 | ||
a64f5186 JJ |
4916 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4917 | { | |
4918 | decl = sym->backend_decl; | |
e5b16755 | 4919 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
a64f5186 JJ |
4920 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4921 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4922 | gfc_module_add_decl (cur_module, decl); | |
4923 | } | |
4924 | ||
9cbf8b41 | 4925 | /* Don't generate variables from other modules. Variables from |
f84c6bd9 | 4926 | COMMONs and Cray pointees will already have been generated. */ |
cded7919 PT |
4927 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4928 | || sym->attr.in_common || sym->attr.cray_pointee) | |
6de9cd9a DN |
4929 | return; |
4930 | ||
30aabb86 | 4931 | /* Equivalenced variables arrive here after creation. */ |
b95605fb | 4932 | if (sym->backend_decl |
a64f5186 JJ |
4933 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4934 | return; | |
30aabb86 | 4935 | |
80f95228 | 4936 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
17d5d49f TB |
4937 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4938 | sym->name); | |
6de9cd9a | 4939 | |
38945cfe TK |
4940 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4941 | && (sym->attr.access == ACCESS_UNKNOWN | |
4942 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4943 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
c61819ff | 4944 | && flag_module_private)))) |
38945cfe TK |
4945 | sym->attr.access = ACCESS_PRIVATE; |
4946 | ||
4947 | if (warn_unused_variable && !sym->attr.referenced | |
4948 | && sym->attr.access == ACCESS_PRIVATE) | |
48749dbc MLI |
4949 | gfc_warning (OPT_Wunused_value, |
4950 | "Unused PRIVATE module variable %qs declared at %L", | |
38945cfe TK |
4951 | sym->name, &sym->declared_at); |
4952 | ||
6de9cd9a DN |
4953 | /* We always want module variables to be created. */ |
4954 | sym->attr.referenced = 1; | |
4955 | /* Create the decl. */ | |
4956 | decl = gfc_get_symbol_decl (sym); | |
4957 | ||
6de9cd9a DN |
4958 | /* Create the variable. */ |
4959 | pushdecl (decl); | |
345bd7eb PT |
4960 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
4961 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
4962 | && sym->fn_result_spec)); | |
a64f5186 | 4963 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
0e6df31e | 4964 | rest_of_decl_compilation (decl, 1, 0); |
a64f5186 | 4965 | gfc_module_add_decl (cur_module, decl); |
6de9cd9a DN |
4966 | |
4967 | /* Also add length of strings. */ | |
4968 | if (sym->ts.type == BT_CHARACTER) | |
4969 | { | |
4970 | tree length; | |
4971 | ||
bc21d315 | 4972 | length = sym->ts.u.cl->backend_decl; |
9c4174d8 PT |
4973 | gcc_assert (length || sym->attr.proc_pointer); |
4974 | if (length && !INTEGER_CST_P (length)) | |
6de9cd9a DN |
4975 | { |
4976 | pushdecl (length); | |
0e6df31e | 4977 | rest_of_decl_compilation (length, 1, 0); |
6de9cd9a DN |
4978 | } |
4979 | } | |
b8ff4e88 TB |
4980 | |
4981 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4982 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4983 | has_coarray_vars = true; | |
6de9cd9a DN |
4984 | } |
4985 | ||
9268ba9a | 4986 | /* Emit debug information for USE statements. */ |
a64f5186 JJ |
4987 | |
4988 | static void | |
4989 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4990 | { | |
4991 | gfc_use_list *use_stmt; | |
4992 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4993 | { | |
4994 | struct module_htab_entry *entry | |
4995 | = gfc_find_module (use_stmt->module_name); | |
4996 | gfc_use_rename *rent; | |
4997 | ||
4998 | if (entry->namespace_decl == NULL) | |
4999 | { | |
5000 | entry->namespace_decl | |
c2255bc4 AH |
5001 | = build_decl (input_location, |
5002 | NAMESPACE_DECL, | |
a64f5186 JJ |
5003 | get_identifier (use_stmt->module_name), |
5004 | void_type_node); | |
5005 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
5006 | } | |
9268ba9a | 5007 | gfc_set_backend_locus (&use_stmt->where); |
a64f5186 JJ |
5008 | if (!use_stmt->only_flag) |
5009 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
5010 | NULL_TREE, | |
5011 | ns->proc_name->backend_decl, | |
e071b767 | 5012 | false, false); |
a64f5186 JJ |
5013 | for (rent = use_stmt->rename; rent; rent = rent->next) |
5014 | { | |
5015 | tree decl, local_name; | |
a64f5186 JJ |
5016 | |
5017 | if (rent->op != INTRINSIC_NONE) | |
5018 | continue; | |
5019 | ||
2a22f99c TS |
5020 | hashval_t hash = htab_hash_string (rent->use_name); |
5021 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
5022 | INSERT); | |
a64f5186 JJ |
5023 | if (*slot == NULL) |
5024 | { | |
5025 | gfc_symtree *st; | |
5026 | ||
5027 | st = gfc_find_symtree (ns->sym_root, | |
5028 | rent->local_name[0] | |
5029 | ? rent->local_name : rent->use_name); | |
c3f34952 TB |
5030 | |
5031 | /* The following can happen if a derived type is renamed. */ | |
5032 | if (!st) | |
5033 | { | |
5034 | char *name; | |
5035 | name = xstrdup (rent->local_name[0] | |
5036 | ? rent->local_name : rent->use_name); | |
5037 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
5038 | st = gfc_find_symtree (ns->sym_root, name); | |
5039 | free (name); | |
5040 | gcc_assert (st); | |
5041 | } | |
1151ccc9 PT |
5042 | |
5043 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
5044 | local symbol (see PR41062). */ | |
5045 | if (!st->n.sym->attr.use_assoc) | |
5046 | continue; | |
5047 | ||
9268ba9a JJ |
5048 | if (st->n.sym->backend_decl |
5049 | && DECL_P (st->n.sym->backend_decl) | |
5050 | && st->n.sym->module | |
5051 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
a64f5186 | 5052 | { |
9268ba9a | 5053 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
d168c883 | 5054 | || !VAR_P (st->n.sym->backend_decl)); |
a64f5186 JJ |
5055 | decl = copy_node (st->n.sym->backend_decl); |
5056 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5057 | DECL_EXTERNAL (decl) = 1; | |
5058 | DECL_IGNORED_P (decl) = 0; | |
5059 | DECL_INITIAL (decl) = NULL_TREE; | |
5060 | } | |
5f673c6a TB |
5061 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
5062 | && st->n.sym->attr.use_only | |
5063 | && st->n.sym->module | |
5064 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
5065 | == 0) | |
5066 | { | |
5067 | decl = generate_namelist_decl (st->n.sym); | |
5068 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5069 | DECL_EXTERNAL (decl) = 1; | |
5070 | DECL_IGNORED_P (decl) = 0; | |
5071 | DECL_INITIAL (decl) = NULL_TREE; | |
5072 | } | |
a64f5186 JJ |
5073 | else |
5074 | { | |
5075 | *slot = error_mark_node; | |
2a22f99c | 5076 | entry->decls->clear_slot (slot); |
a64f5186 JJ |
5077 | continue; |
5078 | } | |
5079 | *slot = decl; | |
5080 | } | |
5081 | decl = (tree) *slot; | |
5082 | if (rent->local_name[0]) | |
5083 | local_name = get_identifier (rent->local_name); | |
5084 | else | |
5085 | local_name = NULL_TREE; | |
9268ba9a | 5086 | gfc_set_backend_locus (&rent->where); |
a64f5186 JJ |
5087 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
5088 | ns->proc_name->backend_decl, | |
e071b767 JJ |
5089 | !use_stmt->only_flag, |
5090 | false); | |
a64f5186 JJ |
5091 | } |
5092 | } | |
6de9cd9a DN |
5093 | } |
5094 | ||
9268ba9a | 5095 | |
bd11e37d JJ |
5096 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
5097 | will handle. */ | |
5098 | ||
5099 | static bool | |
5100 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
5101 | bool pointer) | |
5102 | { | |
5103 | gfc_constructor *c; | |
5104 | gfc_component *cm; | |
5105 | ||
5106 | if (pointer) | |
5107 | return true; | |
5108 | else if (array) | |
5109 | { | |
5110 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
5111 | return true; | |
5112 | else if (expr->expr_type == EXPR_STRUCTURE) | |
5113 | return check_constant_initializer (expr, ts, false, false); | |
5114 | else if (expr->expr_type != EXPR_ARRAY) | |
5115 | return false; | |
b7e75771 JD |
5116 | for (c = gfc_constructor_first (expr->value.constructor); |
5117 | c; c = gfc_constructor_next (c)) | |
bd11e37d JJ |
5118 | { |
5119 | if (c->iterator) | |
5120 | return false; | |
5121 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
5122 | { | |
5123 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
5124 | return false; | |
5125 | } | |
5126 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
5127 | return false; | |
5128 | } | |
5129 | return true; | |
5130 | } | |
5131 | else switch (ts->type) | |
5132 | { | |
f6288c24 | 5133 | case_bt_struct: |
bd11e37d JJ |
5134 | if (expr->expr_type != EXPR_STRUCTURE) |
5135 | return false; | |
bc21d315 | 5136 | cm = expr->ts.u.derived->components; |
b7e75771 JD |
5137 | for (c = gfc_constructor_first (expr->value.constructor); |
5138 | c; c = gfc_constructor_next (c), cm = cm->next) | |
bd11e37d JJ |
5139 | { |
5140 | if (!c->expr || cm->attr.allocatable) | |
5141 | continue; | |
5142 | if (!check_constant_initializer (c->expr, &cm->ts, | |
5143 | cm->attr.dimension, | |
5144 | cm->attr.pointer)) | |
5145 | return false; | |
5146 | } | |
5147 | return true; | |
5148 | default: | |
5149 | return expr->expr_type == EXPR_CONSTANT; | |
5150 | } | |
5151 | } | |
5152 | ||
5153 | /* Emit debug info for parameters and unreferenced variables with | |
5154 | initializers. */ | |
5155 | ||
5156 | static void | |
5157 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
5158 | { | |
5159 | tree decl; | |
5160 | ||
5161 | if (sym->attr.flavor != FL_PARAMETER | |
5162 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
5163 | return; | |
5164 | ||
5165 | if (sym->backend_decl != NULL | |
5166 | || sym->value == NULL | |
5167 | || sym->attr.use_assoc | |
5168 | || sym->attr.dummy | |
5169 | || sym->attr.result | |
5170 | || sym->attr.function | |
5171 | || sym->attr.intrinsic | |
5172 | || sym->attr.pointer | |
5173 | || sym->attr.allocatable | |
5174 | || sym->attr.cray_pointee | |
5175 | || sym->attr.threadprivate | |
5176 | || sym->attr.is_bind_c | |
5177 | || sym->attr.subref_array_pointer | |
5178 | || sym->attr.assign) | |
5179 | return; | |
5180 | ||
5181 | if (sym->ts.type == BT_CHARACTER) | |
5182 | { | |
bc21d315 JW |
5183 | gfc_conv_const_charlen (sym->ts.u.cl); |
5184 | if (sym->ts.u.cl->backend_decl == NULL | |
5185 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
bd11e37d JJ |
5186 | return; |
5187 | } | |
bc21d315 | 5188 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
bd11e37d JJ |
5189 | return; |
5190 | ||
5191 | if (sym->as) | |
5192 | { | |
5193 | int n; | |
5194 | ||
5195 | if (sym->as->type != AS_EXPLICIT) | |
5196 | return; | |
5197 | for (n = 0; n < sym->as->rank; n++) | |
5198 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5199 | || sym->as->upper[n] == NULL | |
5200 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5201 | return; | |
5202 | } | |
5203 | ||
5204 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5205 | sym->attr.dimension, false)) | |
5206 | return; | |
5207 | ||
f19626cf | 5208 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
b8ff4e88 TB |
5209 | return; |
5210 | ||
bd11e37d | 5211 | /* Create the decl for the variable or constant. */ |
c2255bc4 AH |
5212 | decl = build_decl (input_location, |
5213 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
bd11e37d JJ |
5214 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5215 | if (sym->attr.flavor == FL_PARAMETER) | |
5216 | TREE_READONLY (decl) = 1; | |
5217 | gfc_set_decl_location (decl, &sym->declared_at); | |
5218 | if (sym->attr.dimension) | |
5219 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5220 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5221 | TREE_STATIC (decl) = 1; | |
5222 | TREE_USED (decl) = 1; | |
5223 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5224 | TREE_PUBLIC (decl) = 1; | |
1d0134b3 JW |
5225 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5226 | TREE_TYPE (decl), | |
5227 | sym->attr.dimension, | |
5228 | false, false); | |
d7438551 | 5229 | debug_hooks->early_global_decl (decl); |
bd11e37d JJ |
5230 | } |
5231 | ||
b8ff4e88 TB |
5232 | |
5233 | static void | |
5234 | generate_coarray_sym_init (gfc_symbol *sym) | |
5235 | { | |
3c9f5092 | 5236 | tree tmp, size, decl, token, desc; |
5df445a2 | 5237 | bool is_lock_type, is_event_type; |
bc0229f9 | 5238 | int reg_type; |
3c9f5092 AV |
5239 | gfc_se se; |
5240 | symbol_attribute attr; | |
b8ff4e88 TB |
5241 | |
5242 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
d7463e5b TB |
5243 | || sym->attr.use_assoc || !sym->attr.referenced |
5244 | || sym->attr.select_type_temporary) | |
b8ff4e88 TB |
5245 | return; |
5246 | ||
5247 | decl = sym->backend_decl; | |
5248 | TREE_USED(decl) = 1; | |
5249 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5250 | ||
bc0229f9 TB |
5251 | is_lock_type = sym->ts.type == BT_DERIVED |
5252 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5253 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5254 | ||
5df445a2 TB |
5255 | is_event_type = sym->ts.type == BT_DERIVED |
5256 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5257 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5258 | ||
b8ff4e88 TB |
5259 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5260 | to make sure the variable is not optimized away. */ | |
5261 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5262 | ||
bc0229f9 TB |
5263 | /* For lock types, we pass the array size as only the library knows the |
5264 | size of the variable. */ | |
5df445a2 | 5265 | if (is_lock_type || is_event_type) |
bc0229f9 TB |
5266 | size = gfc_index_one_node; |
5267 | else | |
5268 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
b8ff4e88 | 5269 | |
8b704316 | 5270 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
107a9bc9 TB |
5271 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5272 | fold_convert (size_type_node, size), | |
5273 | build_int_cst (size_type_node, 1)); | |
5274 | ||
b8ff4e88 TB |
5275 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5276 | { | |
5277 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5278 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
107a9bc9 | 5279 | fold_convert (size_type_node, tmp), size); |
b8ff4e88 TB |
5280 | } |
5281 | ||
5282 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5283 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5284 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
bc0229f9 TB |
5285 | if (is_lock_type) |
5286 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
5df445a2 TB |
5287 | else if (is_event_type) |
5288 | reg_type = GFC_CAF_EVENT_STATIC; | |
bc0229f9 TB |
5289 | else |
5290 | reg_type = GFC_CAF_COARRAY_STATIC; | |
3c9f5092 | 5291 | |
ea06c7b0 AV |
5292 | /* Compile the symbol attribute. */ |
5293 | if (sym->ts.type == BT_CLASS) | |
5294 | { | |
5295 | attr = CLASS_DATA (sym)->attr; | |
5296 | /* The pointer attribute is always set on classes, overwrite it with the | |
5297 | class_pointer attribute, which denotes the pointer for classes. */ | |
5298 | attr.pointer = attr.class_pointer; | |
5299 | } | |
5300 | else | |
5301 | attr = sym->attr; | |
3c9f5092 AV |
5302 | gfc_init_se (&se, NULL); |
5303 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5304 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5305 | ||
5306 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
bc0229f9 | 5307 | build_int_cst (integer_type_node, reg_type), |
3c9f5092 AV |
5308 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5309 | null_pointer_node, /* stat. */ | |
ba85c8c3 AV |
5310 | null_pointer_node, /* errgmsg. */ |
5311 | integer_zero_node); /* errmsg_len. */ | |
3c9f5092 AV |
5312 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5313 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5314 | gfc_conv_descriptor_data_get (desc))); | |
b8ff4e88 | 5315 | |
b8ff4e88 TB |
5316 | /* Handle "static" initializer. */ |
5317 | if (sym->value) | |
5318 | { | |
5319 | sym->attr.pointer = 1; | |
5320 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5321 | true, false); | |
5322 | sym->attr.pointer = 0; | |
5323 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5324 | } | |
de91486c AV |
5325 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp) |
5326 | { | |
5327 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as | |
5328 | ? sym->as->rank : 0, | |
5329 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY); | |
5330 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5331 | } | |
b8ff4e88 TB |
5332 | } |
5333 | ||
5334 | ||
5335 | /* Generate constructor function to initialize static, nonallocatable | |
5336 | coarrays. */ | |
5337 | ||
5338 | static void | |
5339 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5340 | { | |
5341 | tree fndecl, tmp, decl, save_fn_decl; | |
5342 | ||
5343 | save_fn_decl = current_function_decl; | |
5344 | push_function_context (); | |
5345 | ||
5346 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5347 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5348 | create_tmp_var_name ("_caf_init"), tmp); | |
5349 | ||
5350 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5351 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5352 | ||
5353 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5354 | DECL_ARTIFICIAL (decl) = 1; | |
5355 | DECL_IGNORED_P (decl) = 1; | |
5356 | DECL_CONTEXT (decl) = fndecl; | |
5357 | DECL_RESULT (fndecl) = decl; | |
5358 | ||
5359 | pushdecl (fndecl); | |
5360 | current_function_decl = fndecl; | |
5361 | announce_function (fndecl); | |
5362 | ||
5363 | rest_of_decl_compilation (fndecl, 0, 0); | |
5364 | make_decl_rtl (fndecl); | |
b6b27e98 | 5365 | allocate_struct_function (fndecl, false); |
b8ff4e88 | 5366 | |
87a60f68 | 5367 | pushlevel (); |
b8ff4e88 TB |
5368 | gfc_init_block (&caf_init_block); |
5369 | ||
5370 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5371 | ||
5372 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5373 | decl = getdecls (); | |
5374 | ||
87a60f68 | 5375 | poplevel (1, 1); |
b8ff4e88 TB |
5376 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5377 | ||
5378 | DECL_SAVED_TREE (fndecl) | |
5379 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5380 | DECL_INITIAL (fndecl)); | |
5381 | dump_function (TDI_original, fndecl); | |
5382 | ||
5383 | cfun->function_end_locus = input_location; | |
5384 | set_cfun (NULL); | |
5385 | ||
5386 | if (decl_function_context (fndecl)) | |
d52f5295 | 5387 | (void) cgraph_node::create (fndecl); |
b8ff4e88 | 5388 | else |
3dafb85c | 5389 | cgraph_node::finalize_function (fndecl, true); |
b8ff4e88 TB |
5390 | |
5391 | pop_function_context (); | |
5392 | current_function_decl = save_fn_decl; | |
5393 | } | |
5394 | ||
5395 | ||
5f673c6a TB |
5396 | static void |
5397 | create_module_nml_decl (gfc_symbol *sym) | |
5398 | { | |
5399 | if (sym->attr.flavor == FL_NAMELIST) | |
5400 | { | |
5401 | tree decl = generate_namelist_decl (sym); | |
5402 | pushdecl (decl); | |
5403 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5404 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5405 | rest_of_decl_compilation (decl, 1, 0); | |
5406 | gfc_module_add_decl (cur_module, decl); | |
5407 | } | |
5408 | } | |
5409 | ||
5410 | ||
9268ba9a JJ |
5411 | /* Generate all the required code for module variables. */ |
5412 | ||
5413 | void | |
5414 | gfc_generate_module_vars (gfc_namespace * ns) | |
5415 | { | |
5416 | module_namespace = ns; | |
5417 | cur_module = gfc_find_module (ns->proc_name->name); | |
5418 | ||
5419 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5420 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5421 | ||
5422 | /* Generate COMMON blocks. */ | |
5423 | gfc_trans_common (ns); | |
5424 | ||
b8ff4e88 TB |
5425 | has_coarray_vars = false; |
5426 | ||
9268ba9a JJ |
5427 | /* Create decls for all the module variables. */ |
5428 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
5f673c6a | 5429 | gfc_traverse_ns (ns, create_module_nml_decl); |
9268ba9a | 5430 | |
f19626cf | 5431 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
5432 | generate_coarray_init (ns); |
5433 | ||
9268ba9a JJ |
5434 | cur_module = NULL; |
5435 | ||
5436 | gfc_trans_use_stmts (ns); | |
bd11e37d | 5437 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
9268ba9a JJ |
5438 | } |
5439 | ||
5440 | ||
6de9cd9a DN |
5441 | static void |
5442 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5443 | { | |
5444 | gfc_namespace *ns; | |
5445 | ||
5446 | /* We create all the prototypes before generating any code. */ | |
5447 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5448 | { | |
5449 | /* Skip namespaces from used modules. */ | |
5450 | if (ns->parent != parent) | |
5451 | continue; | |
5452 | ||
fb55ca75 | 5453 | gfc_create_function_decl (ns, false); |
6de9cd9a DN |
5454 | } |
5455 | ||
5456 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5457 | { | |
5458 | /* Skip namespaces from used modules. */ | |
5459 | if (ns->parent != parent) | |
5460 | continue; | |
5461 | ||
5462 | gfc_generate_function_code (ns); | |
5463 | } | |
5464 | } | |
5465 | ||
5466 | ||
3e978d30 PT |
5467 | /* Drill down through expressions for the array specification bounds and |
5468 | character length calling generate_local_decl for all those variables | |
5469 | that have not already been declared. */ | |
5470 | ||
5471 | static void | |
5472 | generate_local_decl (gfc_symbol *); | |
5473 | ||
908a2235 | 5474 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
3e978d30 | 5475 | |
908a2235 PT |
5476 | static bool |
5477 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5478 | int *f ATTRIBUTE_UNUSED) | |
5479 | { | |
5480 | if (e->expr_type != EXPR_VARIABLE | |
5481 | || sym == e->symtree->n.sym | |
3e978d30 PT |
5482 | || e->symtree->n.sym->mark |
5483 | || e->symtree->n.sym->ns != sym->ns) | |
908a2235 | 5484 | return false; |
3e978d30 | 5485 | |
908a2235 PT |
5486 | generate_local_decl (e->symtree->n.sym); |
5487 | return false; | |
5488 | } | |
3e978d30 | 5489 | |
908a2235 PT |
5490 | static void |
5491 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5492 | { | |
5493 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
3e978d30 PT |
5494 | } |
5495 | ||
5496 | ||
66e4ab31 | 5497 | /* Check for dependencies in the character length and array spec. */ |
3e978d30 PT |
5498 | |
5499 | static void | |
5500 | generate_dependency_declarations (gfc_symbol *sym) | |
5501 | { | |
5502 | int i; | |
5503 | ||
5504 | if (sym->ts.type == BT_CHARACTER | |
bc21d315 JW |
5505 | && sym->ts.u.cl |
5506 | && sym->ts.u.cl->length | |
5507 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5508 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
3e978d30 PT |
5509 | |
5510 | if (sym->as && sym->as->rank) | |
5511 | { | |
5512 | for (i = 0; i < sym->as->rank; i++) | |
5513 | { | |
5514 | generate_expr_decls (sym, sym->as->lower[i]); | |
5515 | generate_expr_decls (sym, sym->as->upper[i]); | |
5516 | } | |
5517 | } | |
5518 | } | |
5519 | ||
5520 | ||
6de9cd9a DN |
5521 | /* Generate decls for all local variables. We do this to ensure correct |
5522 | handling of expressions which only appear in the specification of | |
5523 | other functions. */ | |
5524 | ||
5525 | static void | |
5526 | generate_local_decl (gfc_symbol * sym) | |
5527 | { | |
5528 | if (sym->attr.flavor == FL_VARIABLE) | |
5529 | { | |
b8ff4e88 TB |
5530 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5531 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5532 | has_coarray_vars = true; | |
5533 | ||
3e978d30 | 5534 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
2c69d527 | 5535 | generate_dependency_declarations (sym); |
3e978d30 | 5536 | |
6de9cd9a | 5537 | if (sym->attr.referenced) |
2c69d527 | 5538 | gfc_get_symbol_decl (sym); |
4ed44ccc DF |
5539 | |
5540 | /* Warnings for unused dummy arguments. */ | |
c8877f40 | 5541 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
ad6d42e1 | 5542 | { |
4ed44ccc | 5543 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
73e42eef | 5544 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4ed44ccc DF |
5545 | { |
5546 | if (sym->ts.type != BT_DERIVED) | |
48749dbc MLI |
5547 | gfc_warning (OPT_Wunused_dummy_argument, |
5548 | "Dummy argument %qs at %L was declared " | |
4ed44ccc DF |
5549 | "INTENT(OUT) but was not set", sym->name, |
5550 | &sym->declared_at); | |
bf7a6c1c JW |
5551 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5552 | && !sym->ts.u.derived->attr.zero_comp) | |
48749dbc MLI |
5553 | gfc_warning (OPT_Wunused_dummy_argument, |
5554 | "Derived-type dummy argument %qs at %L was " | |
4ed44ccc DF |
5555 | "declared INTENT(OUT) but was not set and " |
5556 | "does not have a default initializer", | |
5557 | sym->name, &sym->declared_at); | |
fba5ace0 TB |
5558 | if (sym->backend_decl != NULL_TREE) |
5559 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4ed44ccc | 5560 | } |
73e42eef | 5561 | else if (warn_unused_dummy_argument) |
fba5ace0 | 5562 | { |
48749dbc MLI |
5563 | gfc_warning (OPT_Wunused_dummy_argument, |
5564 | "Unused dummy argument %qs at %L", sym->name, | |
5565 | &sym->declared_at); | |
fba5ace0 TB |
5566 | if (sym->backend_decl != NULL_TREE) |
5567 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5568 | } | |
ad6d42e1 | 5569 | } |
4ed44ccc | 5570 | |
f8d0aee5 | 5571 | /* Warn for unused variables, but not if they're inside a common |
ecdbf2cd | 5572 | block or a namelist. */ |
ce738b86 | 5573 | else if (warn_unused_variable |
ecdbf2cd | 5574 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
fba5ace0 | 5575 | { |
ecdbf2cd JW |
5576 | if (sym->attr.use_only) |
5577 | { | |
48749dbc MLI |
5578 | gfc_warning (OPT_Wunused_variable, |
5579 | "Unused module variable %qs which has been " | |
ecdbf2cd JW |
5580 | "explicitly imported at %L", sym->name, |
5581 | &sym->declared_at); | |
5582 | if (sym->backend_decl != NULL_TREE) | |
5583 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5584 | } | |
5585 | else if (!sym->attr.use_assoc) | |
5586 | { | |
ad7a5a8f SK |
5587 | /* Corner case: the symbol may be an entry point. At this point, |
5588 | it may appear to be an unused variable. Suppress warning. */ | |
5589 | bool enter = false; | |
5590 | gfc_entry_list *el; | |
5591 | ||
5592 | for (el = sym->ns->entries; el; el=el->next) | |
5593 | if (strcmp(sym->name, el->sym->name) == 0) | |
5594 | enter = true; | |
5595 | ||
5596 | if (!enter) | |
5597 | gfc_warning (OPT_Wunused_variable, | |
5598 | "Unused variable %qs declared at %L", | |
5599 | sym->name, &sym->declared_at); | |
ecdbf2cd JW |
5600 | if (sym->backend_decl != NULL_TREE) |
5601 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5602 | } | |
fba5ace0 | 5603 | } |
2c69d527 | 5604 | |
417ab240 JJ |
5605 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5606 | references the length variable, so force gfc_get_symbol_decl | |
5607 | even when not referenced. If optimize > 0, it will be optimized | |
5608 | away anyway. But do this only after emitting -Wunused-parameter | |
5609 | warning if requested. */ | |
2c69d527 PT |
5610 | if (sym->attr.dummy && !sym->attr.referenced |
5611 | && sym->ts.type == BT_CHARACTER | |
bc21d315 | 5612 | && sym->ts.u.cl->backend_decl != NULL |
d168c883 | 5613 | && VAR_P (sym->ts.u.cl->backend_decl)) |
417ab240 JJ |
5614 | { |
5615 | sym->attr.referenced = 1; | |
5616 | gfc_get_symbol_decl (sym); | |
5617 | } | |
534fd534 | 5618 | |
5af2eace PT |
5619 | /* INTENT(out) dummy arguments and result variables with allocatable |
5620 | components are reset by default and need to be set referenced to | |
5621 | generate the code for nullification and automatic lengths. */ | |
5622 | if (!sym->attr.referenced | |
2c69d527 | 5623 | && sym->ts.type == BT_DERIVED |
bc21d315 | 5624 | && sym->ts.u.derived->attr.alloc_comp |
758e12af | 5625 | && !sym->attr.pointer |
5af2eace PT |
5626 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5627 | || | |
5628 | (sym->attr.result && sym != sym->result))) | |
2c69d527 PT |
5629 | { |
5630 | sym->attr.referenced = 1; | |
5631 | gfc_get_symbol_decl (sym); | |
5632 | } | |
5633 | ||
06c7153f TB |
5634 | /* Check for dependencies in the array specification and string |
5635 | length, adding the necessary declarations to the function. We | |
5636 | mark the symbol now, as well as in traverse_ns, to prevent | |
5637 | getting stuck in a circular dependency. */ | |
5638 | sym->mark = 1; | |
6de9cd9a | 5639 | } |
33c0c5e9 DF |
5640 | else if (sym->attr.flavor == FL_PARAMETER) |
5641 | { | |
d92693b4 | 5642 | if (warn_unused_parameter |
dbad8e71 TB |
5643 | && !sym->attr.referenced) |
5644 | { | |
5645 | if (!sym->attr.use_assoc) | |
48749dbc MLI |
5646 | gfc_warning (OPT_Wunused_parameter, |
5647 | "Unused parameter %qs declared at %L", sym->name, | |
dbad8e71 TB |
5648 | &sym->declared_at); |
5649 | else if (sym->attr.use_only) | |
48749dbc MLI |
5650 | gfc_warning (OPT_Wunused_parameter, |
5651 | "Unused parameter %qs which has been explicitly " | |
dbad8e71 TB |
5652 | "imported at %L", sym->name, &sym->declared_at); |
5653 | } | |
285b1f01 SK |
5654 | |
5655 | if (sym->ns | |
5656 | && sym->ns->parent | |
5657 | && sym->ns->parent->code | |
5658 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5659 | { | |
5660 | if (sym->attr.referenced) | |
5661 | gfc_get_symbol_decl (sym); | |
5662 | sym->mark = 1; | |
5663 | } | |
33c0c5e9 | 5664 | } |
766d0c8c DF |
5665 | else if (sym->attr.flavor == FL_PROCEDURE) |
5666 | { | |
5667 | /* TODO: move to the appropriate place in resolve.c. */ | |
134d2354 | 5668 | if (warn_return_type > 0 |
766d0c8c DF |
5669 | && sym->attr.function |
5670 | && sym->result | |
5671 | && sym != sym->result | |
5672 | && !sym->result->attr.referenced | |
5673 | && !sym->attr.use_assoc | |
5674 | && sym->attr.if_source != IFSRC_IFBODY) | |
5675 | { | |
48749dbc MLI |
5676 | gfc_warning (OPT_Wreturn_type, |
5677 | "Return value %qs of function %qs declared at " | |
766d0c8c DF |
5678 | "%L not set", sym->result->name, sym->name, |
5679 | &sym->result->declared_at); | |
5680 | ||
5681 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
06c7153f | 5682 | sym->result->mark = 1; |
766d0c8c DF |
5683 | } |
5684 | } | |
a8b3b0b6 | 5685 | |
8b16d231 CR |
5686 | if (sym->attr.dummy == 1) |
5687 | { | |
5688 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5689 | procedures if they are passed by value. The tree type for them will | |
5690 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5691 | what C would do with characters passed by-value. The value attribute | |
5692 | implies the dummy is a scalar. */ | |
5693 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5694 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5695 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
e032c2a1 | 5696 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
d20597cb TK |
5697 | |
5698 | /* Unused procedure passed as dummy argument. */ | |
5699 | if (sym->attr.flavor == FL_PROCEDURE) | |
5700 | { | |
5701 | if (!sym->attr.referenced) | |
5702 | { | |
73e42eef | 5703 | if (warn_unused_dummy_argument) |
48749dbc MLI |
5704 | gfc_warning (OPT_Wunused_dummy_argument, |
5705 | "Unused dummy argument %qs at %L", sym->name, | |
8b704316 | 5706 | &sym->declared_at); |
d20597cb TK |
5707 | } |
5708 | ||
5709 | /* Silence bogus "unused parameter" warnings from the | |
5710 | middle end. */ | |
5711 | if (sym->backend_decl != NULL_TREE) | |
5712 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5713 | } | |
8b16d231 CR |
5714 | } |
5715 | ||
a8b3b0b6 CR |
5716 | /* Make sure we convert the types of the derived types from iso_c_binding |
5717 | into (void *). */ | |
5718 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5719 | && sym->ts.type == BT_DERIVED) | |
5720 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
6de9cd9a DN |
5721 | } |
5722 | ||
5f673c6a TB |
5723 | |
5724 | static void | |
5725 | generate_local_nml_decl (gfc_symbol * sym) | |
5726 | { | |
5727 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5728 | { | |
5729 | tree decl = generate_namelist_decl (sym); | |
5730 | pushdecl (decl); | |
5731 | } | |
5732 | } | |
5733 | ||
5734 | ||
6de9cd9a DN |
5735 | static void |
5736 | generate_local_vars (gfc_namespace * ns) | |
5737 | { | |
5738 | gfc_traverse_ns (ns, generate_local_decl); | |
5f673c6a | 5739 | gfc_traverse_ns (ns, generate_local_nml_decl); |
6de9cd9a DN |
5740 | } |
5741 | ||
5742 | ||
3d79abbd PB |
5743 | /* Generate a switch statement to jump to the correct entry point. Also |
5744 | creates the label decls for the entry points. */ | |
6de9cd9a | 5745 | |
3d79abbd PB |
5746 | static tree |
5747 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
6de9cd9a | 5748 | { |
3d79abbd PB |
5749 | stmtblock_t block; |
5750 | tree label; | |
5751 | tree tmp; | |
5752 | tree val; | |
6de9cd9a | 5753 | |
3d79abbd PB |
5754 | gfc_init_block (&block); |
5755 | for (; el; el = el->next) | |
5756 | { | |
5757 | /* Add the case label. */ | |
c006df4e | 5758 | label = gfc_build_label_decl (NULL_TREE); |
7d60be94 | 5759 | val = build_int_cst (gfc_array_index_type, el->id); |
3d528853 | 5760 | tmp = build_case_label (val, NULL_TREE, label); |
3d79abbd | 5761 | gfc_add_expr_to_block (&block, tmp); |
7389bce6 | 5762 | |
3d79abbd PB |
5763 | /* And jump to the actual entry point. */ |
5764 | label = gfc_build_label_decl (NULL_TREE); | |
3d79abbd PB |
5765 | tmp = build1_v (GOTO_EXPR, label); |
5766 | gfc_add_expr_to_block (&block, tmp); | |
5767 | ||
5768 | /* Save the label decl. */ | |
5769 | el->label = label; | |
5770 | } | |
5771 | tmp = gfc_finish_block (&block); | |
5772 | /* The first argument selects the entry point. */ | |
5773 | val = DECL_ARGUMENTS (current_function_decl); | |
9e851845 | 5774 | tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp); |
3d79abbd | 5775 | return tmp; |
6de9cd9a DN |
5776 | } |
5777 | ||
44de5aeb | 5778 | |
cadb8f42 DK |
5779 | /* Add code to string lengths of actual arguments passed to a function against |
5780 | the expected lengths of the dummy arguments. */ | |
5781 | ||
5782 | static void | |
5783 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5784 | { | |
5785 | gfc_formal_arglist *formal; | |
5786 | ||
4cbc9039 | 5787 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
be94c034 | 5788 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
9be1227b | 5789 | && !formal->sym->ts.deferred) |
cadb8f42 DK |
5790 | { |
5791 | enum tree_code comparison; | |
5792 | tree cond; | |
5793 | tree argname; | |
5794 | gfc_symbol *fsym; | |
5795 | gfc_charlen *cl; | |
5796 | const char *message; | |
5797 | ||
5798 | fsym = formal->sym; | |
bc21d315 | 5799 | cl = fsym->ts.u.cl; |
cadb8f42 DK |
5800 | |
5801 | gcc_assert (cl); | |
5802 | gcc_assert (cl->passed_length != NULL_TREE); | |
5803 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5804 | ||
5805 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5806 | string lengths must match exactly. Otherwise, it is only required | |
cb7a8961 TB |
5807 | that the actual string length is *at least* the expected one. |
5808 | Sequence association allows for a mismatch of the string length | |
5809 | if the actual argument is (part of) an array, but only if the | |
5810 | dummy argument is an array. (See "Sequence association" in | |
5811 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
be94c034 | 5812 | if (fsym->attr.pointer || fsym->attr.allocatable |
c62c6622 TB |
5813 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5814 | || fsym->as->type == AS_ASSUMED_RANK))) | |
cadb8f42 DK |
5815 | { |
5816 | comparison = NE_EXPR; | |
5817 | message = _("Actual string length does not match the declared one" | |
5818 | " for dummy argument '%s' (%ld/%ld)"); | |
5819 | } | |
cb7a8961 TB |
5820 | else if (fsym->as && fsym->as->rank != 0) |
5821 | continue; | |
cadb8f42 DK |
5822 | else |
5823 | { | |
5824 | comparison = LT_EXPR; | |
5825 | message = _("Actual string length is shorter than the declared one" | |
5826 | " for dummy argument '%s' (%ld/%ld)"); | |
5827 | } | |
5828 | ||
5829 | /* Build the condition. For optional arguments, an actual length | |
5830 | of 0 is also acceptable if the associated string is NULL, which | |
5831 | means the argument was not passed. */ | |
63ee5404 | 5832 | cond = fold_build2_loc (input_location, comparison, logical_type_node, |
bc98ed60 | 5833 | cl->passed_length, cl->backend_decl); |
cadb8f42 DK |
5834 | if (fsym->attr.optional) |
5835 | { | |
5836 | tree not_absent; | |
5837 | tree not_0length; | |
5838 | tree absent_failed; | |
5839 | ||
bc98ed60 | 5840 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
63ee5404 | 5841 | logical_type_node, |
bc98ed60 | 5842 | cl->passed_length, |
e8160c9a | 5843 | build_zero_cst (gfc_charlen_type_node)); |
702a738b PT |
5844 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5845 | fsym->attr.referenced = 1; | |
5846 | not_absent = gfc_conv_expr_present (fsym); | |
cadb8f42 | 5847 | |
bc98ed60 | 5848 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
63ee5404 | 5849 | logical_type_node, not_0length, |
bc98ed60 | 5850 | not_absent); |
cadb8f42 | 5851 | |
bc98ed60 | 5852 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
63ee5404 | 5853 | logical_type_node, cond, absent_failed); |
cadb8f42 DK |
5854 | } |
5855 | ||
5856 | /* Build the runtime check. */ | |
5857 | argname = gfc_build_cstring_const (fsym->name); | |
5858 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5859 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5860 | message, argname, | |
5861 | fold_convert (long_integer_type_node, | |
5862 | cl->passed_length), | |
5863 | fold_convert (long_integer_type_node, | |
5864 | cl->backend_decl)); | |
5865 | } | |
5866 | } | |
5867 | ||
5868 | ||
092231a8 TB |
5869 | static void |
5870 | create_main_function (tree fndecl) | |
5871 | { | |
86c3c481 | 5872 | tree old_context; |
092231a8 TB |
5873 | tree ftn_main; |
5874 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5875 | stmtblock_t body; | |
5876 | ||
86c3c481 TB |
5877 | old_context = current_function_decl; |
5878 | ||
5879 | if (old_context) | |
5880 | { | |
5881 | push_function_context (); | |
5882 | saved_parent_function_decls = saved_function_decls; | |
5883 | saved_function_decls = NULL_TREE; | |
5884 | } | |
5885 | ||
092231a8 TB |
5886 | /* main() function must be declared with global scope. */ |
5887 | gcc_assert (current_function_decl == NULL_TREE); | |
5888 | ||
5889 | /* Declare the function. */ | |
5890 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5891 | build_pointer_type (pchar_type_node), | |
5892 | NULL_TREE); | |
a7ad6c2d | 5893 | main_identifier_node = get_identifier ("main"); |
c2255bc4 AH |
5894 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5895 | main_identifier_node, tmp); | |
092231a8 TB |
5896 | DECL_EXTERNAL (ftn_main) = 0; |
5897 | TREE_PUBLIC (ftn_main) = 1; | |
5898 | TREE_STATIC (ftn_main) = 1; | |
5899 | DECL_ATTRIBUTES (ftn_main) | |
5900 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5901 | ||
5902 | /* Setup the result declaration (for "return 0"). */ | |
c2255bc4 AH |
5903 | result_decl = build_decl (input_location, |
5904 | RESULT_DECL, NULL_TREE, integer_type_node); | |
092231a8 TB |
5905 | DECL_ARTIFICIAL (result_decl) = 1; |
5906 | DECL_IGNORED_P (result_decl) = 1; | |
5907 | DECL_CONTEXT (result_decl) = ftn_main; | |
5908 | DECL_RESULT (ftn_main) = result_decl; | |
5909 | ||
5910 | pushdecl (ftn_main); | |
5911 | ||
5912 | /* Get the arguments. */ | |
5913 | ||
5914 | arglist = NULL_TREE; | |
5915 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5916 | ||
5917 | tmp = TREE_VALUE (typelist); | |
c2255bc4 | 5918 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
092231a8 TB |
5919 | DECL_CONTEXT (argc) = ftn_main; |
5920 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5921 | TREE_READONLY (argc) = 1; | |
5922 | gfc_finish_decl (argc); | |
5923 | arglist = chainon (arglist, argc); | |
5924 | ||
5925 | typelist = TREE_CHAIN (typelist); | |
5926 | tmp = TREE_VALUE (typelist); | |
c2255bc4 | 5927 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
092231a8 TB |
5928 | DECL_CONTEXT (argv) = ftn_main; |
5929 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5930 | TREE_READONLY (argv) = 1; | |
5931 | DECL_BY_REFERENCE (argv) = 1; | |
5932 | gfc_finish_decl (argv); | |
5933 | arglist = chainon (arglist, argv); | |
5934 | ||
5935 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5936 | current_function_decl = ftn_main; | |
5937 | announce_function (ftn_main); | |
5938 | ||
5939 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5940 | make_decl_rtl (ftn_main); | |
b6b27e98 | 5941 | allocate_struct_function (ftn_main, false); |
87a60f68 | 5942 | pushlevel (); |
092231a8 TB |
5943 | |
5944 | gfc_init_block (&body); | |
5945 | ||
1cc0e193 | 5946 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
092231a8 | 5947 | |
a8a5f4a9 | 5948 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
f19626cf | 5949 | if (flag_coarray == GFC_FCOARRAY_LIB) |
60386f50 TB |
5950 | { |
5951 | tree pint_type, pppchar_type; | |
5952 | pint_type = build_pointer_type (integer_type_node); | |
5953 | pppchar_type | |
5954 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5955 | ||
a8a5f4a9 | 5956 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
60386f50 | 5957 | gfc_build_addr_expr (pint_type, argc), |
a8a5f4a9 | 5958 | gfc_build_addr_expr (pppchar_type, argv)); |
60386f50 TB |
5959 | gfc_add_expr_to_block (&body, tmp); |
5960 | } | |
5961 | ||
092231a8 | 5962 | /* Call _gfortran_set_args (argc, argv). */ |
86c3c481 TB |
5963 | TREE_USED (argc) = 1; |
5964 | TREE_USED (argv) = 1; | |
db3927fb AH |
5965 | tmp = build_call_expr_loc (input_location, |
5966 | gfor_fndecl_set_args, 2, argc, argv); | |
092231a8 TB |
5967 | gfc_add_expr_to_block (&body, tmp); |
5968 | ||
5969 | /* Add a call to set_options to set up the runtime library Fortran | |
5970 | language standard parameters. */ | |
5971 | { | |
5972 | tree array_type, array, var; | |
9771b263 | 5973 | vec<constructor_elt, va_gc> *v = NULL; |
75b07bb4 | 5974 | static const int noptions = 7; |
092231a8 | 5975 | |
75b07bb4 FXC |
5976 | /* Passing a new option to the library requires three modifications: |
5977 | + add it to the tree_cons list below | |
5978 | + change the noptions variable above | |
092231a8 TB |
5979 | + modify the library (runtime/compile_options.c)! */ |
5980 | ||
8748ad99 NF |
5981 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5982 | build_int_cst (integer_type_node, | |
5983 | gfc_option.warn_std)); | |
5984 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5985 | build_int_cst (integer_type_node, | |
5986 | gfc_option.allow_std)); | |
5987 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5988 | build_int_cst (integer_type_node, pedantic)); | |
8748ad99 | 5989 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
c61819ff | 5990 | build_int_cst (integer_type_node, flag_backtrace)); |
8748ad99 | 5991 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
c61819ff | 5992 | build_int_cst (integer_type_node, flag_sign_zero)); |
8748ad99 NF |
5993 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5994 | build_int_cst (integer_type_node, | |
5995 | (gfc_option.rtcheck | |
5996 | & GFC_RTCHECK_BOUNDS))); | |
5997 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5998 | build_int_cst (integer_type_node, | |
fa86f4f9 | 5999 | gfc_option.fpe_summary)); |
092231a8 | 6000 | |
75b07bb4 | 6001 | array_type = build_array_type_nelts (integer_type_node, noptions); |
8748ad99 | 6002 | array = build_constructor (array_type, v); |
092231a8 TB |
6003 | TREE_CONSTANT (array) = 1; |
6004 | TREE_STATIC (array) = 1; | |
6005 | ||
6006 | /* Create a static variable to hold the jump table. */ | |
059345ce | 6007 | var = build_decl (input_location, VAR_DECL, |
75b07bb4 | 6008 | create_tmp_var_name ("options"), array_type); |
059345ce BS |
6009 | DECL_ARTIFICIAL (var) = 1; |
6010 | DECL_IGNORED_P (var) = 1; | |
092231a8 TB |
6011 | TREE_CONSTANT (var) = 1; |
6012 | TREE_STATIC (var) = 1; | |
6013 | TREE_READONLY (var) = 1; | |
6014 | DECL_INITIAL (var) = array; | |
059345ce | 6015 | pushdecl (var); |
092231a8 TB |
6016 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
6017 | ||
db3927fb AH |
6018 | tmp = build_call_expr_loc (input_location, |
6019 | gfor_fndecl_set_options, 2, | |
75b07bb4 | 6020 | build_int_cst (integer_type_node, noptions), var); |
092231a8 TB |
6021 | gfc_add_expr_to_block (&body, tmp); |
6022 | } | |
6023 | ||
6024 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
6025 | the library will raise a FPE when needed. */ | |
6026 | if (gfc_option.fpe != 0) | |
6027 | { | |
db3927fb AH |
6028 | tmp = build_call_expr_loc (input_location, |
6029 | gfor_fndecl_set_fpe, 1, | |
092231a8 TB |
6030 | build_int_cst (integer_type_node, |
6031 | gfc_option.fpe)); | |
6032 | gfc_add_expr_to_block (&body, tmp); | |
6033 | } | |
6034 | ||
6035 | /* If this is the main program and an -fconvert option was provided, | |
6036 | add a call to set_convert. */ | |
6037 | ||
f19626cf | 6038 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
092231a8 | 6039 | { |
db3927fb AH |
6040 | tmp = build_call_expr_loc (input_location, |
6041 | gfor_fndecl_set_convert, 1, | |
f19626cf | 6042 | build_int_cst (integer_type_node, flag_convert)); |
092231a8 TB |
6043 | gfc_add_expr_to_block (&body, tmp); |
6044 | } | |
6045 | ||
6046 | /* If this is the main program and an -frecord-marker option was provided, | |
6047 | add a call to set_record_marker. */ | |
6048 | ||
203c7ebf | 6049 | if (flag_record_marker != 0) |
092231a8 | 6050 | { |
db3927fb AH |
6051 | tmp = build_call_expr_loc (input_location, |
6052 | gfor_fndecl_set_record_marker, 1, | |
092231a8 | 6053 | build_int_cst (integer_type_node, |
203c7ebf | 6054 | flag_record_marker)); |
092231a8 TB |
6055 | gfc_add_expr_to_block (&body, tmp); |
6056 | } | |
6057 | ||
203c7ebf | 6058 | if (flag_max_subrecord_length != 0) |
092231a8 | 6059 | { |
db3927fb AH |
6060 | tmp = build_call_expr_loc (input_location, |
6061 | gfor_fndecl_set_max_subrecord_length, 1, | |
092231a8 | 6062 | build_int_cst (integer_type_node, |
203c7ebf | 6063 | flag_max_subrecord_length)); |
092231a8 TB |
6064 | gfc_add_expr_to_block (&body, tmp); |
6065 | } | |
6066 | ||
6067 | /* Call MAIN__(). */ | |
db3927fb AH |
6068 | tmp = build_call_expr_loc (input_location, |
6069 | fndecl, 0); | |
092231a8 TB |
6070 | gfc_add_expr_to_block (&body, tmp); |
6071 | ||
86c3c481 TB |
6072 | /* Mark MAIN__ as used. */ |
6073 | TREE_USED (fndecl) = 1; | |
6074 | ||
60386f50 | 6075 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
f19626cf | 6076 | if (flag_coarray == GFC_FCOARRAY_LIB) |
8b704316 | 6077 | { |
60386f50 TB |
6078 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
6079 | gfc_add_expr_to_block (&body, tmp); | |
6080 | } | |
6081 | ||
092231a8 | 6082 | /* "return 0". */ |
bc98ed60 TB |
6083 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
6084 | DECL_RESULT (ftn_main), | |
6085 | build_int_cst (integer_type_node, 0)); | |
092231a8 TB |
6086 | tmp = build1_v (RETURN_EXPR, tmp); |
6087 | gfc_add_expr_to_block (&body, tmp); | |
6088 | ||
6089 | ||
6090 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
6091 | decl = getdecls (); | |
6092 | ||
6093 | /* Finish off this function and send it for code generation. */ | |
87a60f68 | 6094 | poplevel (1, 1); |
092231a8 TB |
6095 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
6096 | ||
6097 | DECL_SAVED_TREE (ftn_main) | |
6098 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
6099 | DECL_INITIAL (ftn_main)); | |
6100 | ||
6101 | /* Output the GENERIC tree. */ | |
6102 | dump_function (TDI_original, ftn_main); | |
6103 | ||
3dafb85c | 6104 | cgraph_node::finalize_function (ftn_main, true); |
86c3c481 TB |
6105 | |
6106 | if (old_context) | |
6107 | { | |
6108 | pop_function_context (); | |
6109 | saved_function_decls = saved_parent_function_decls; | |
6110 | } | |
6111 | current_function_decl = old_context; | |
092231a8 TB |
6112 | } |
6113 | ||
6114 | ||
d74d8807 DK |
6115 | /* Generate an appropriate return-statement for a procedure. */ |
6116 | ||
6117 | tree | |
6118 | gfc_generate_return (void) | |
6119 | { | |
6120 | gfc_symbol* sym; | |
6121 | tree result; | |
6122 | tree fndecl; | |
6123 | ||
6124 | sym = current_procedure_symbol; | |
6125 | fndecl = sym->backend_decl; | |
6126 | ||
6127 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
6128 | result = NULL_TREE; | |
6129 | else | |
6130 | { | |
6131 | result = get_proc_result (sym); | |
6132 | ||
6133 | /* Set the return value to the dummy result variable. The | |
6134 | types may be different for scalar default REAL functions | |
6135 | with -ff2c, therefore we have to convert. */ | |
6136 | if (result != NULL_TREE) | |
6137 | { | |
6138 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
bc98ed60 TB |
6139 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
6140 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
6141 | result); | |
d74d8807 DK |
6142 | } |
6143 | } | |
6144 | ||
6145 | return build1_v (RETURN_EXPR, result); | |
6146 | } | |
6147 | ||
6148 | ||
8b198102 FXC |
6149 | static void |
6150 | is_from_ieee_module (gfc_symbol *sym) | |
6151 | { | |
6152 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6153 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6154 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6155 | seen_ieee_symbol = 1; | |
6156 | } | |
6157 | ||
6158 | ||
6159 | static int | |
6160 | is_ieee_module_used (gfc_namespace *ns) | |
6161 | { | |
6162 | seen_ieee_symbol = 0; | |
6163 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6164 | return seen_ieee_symbol; | |
6165 | } | |
6166 | ||
6167 | ||
dc7a8b4b JN |
6168 | static gfc_omp_clauses *module_oacc_clauses; |
6169 | ||
6170 | ||
6171 | static void | |
6172 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6173 | { | |
6174 | gfc_omp_namelist *n; | |
6175 | ||
6176 | n = gfc_get_omp_namelist (); | |
6177 | n->sym = sym; | |
6178 | n->u.map_op = map_op; | |
6179 | ||
6180 | if (!module_oacc_clauses) | |
6181 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6182 | ||
6183 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6184 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6185 | ||
6186 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6187 | } | |
6188 | ||
6189 | ||
6190 | static void | |
6191 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6192 | { | |
6193 | if (sym->attr.use_assoc) | |
6194 | { | |
6195 | gfc_omp_map_op map_op; | |
6196 | ||
6197 | if (sym->attr.oacc_declare_create) | |
6198 | map_op = OMP_MAP_FORCE_ALLOC; | |
6199 | ||
6200 | if (sym->attr.oacc_declare_copyin) | |
6201 | map_op = OMP_MAP_FORCE_TO; | |
6202 | ||
6203 | if (sym->attr.oacc_declare_deviceptr) | |
6204 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6205 | ||
6206 | if (sym->attr.oacc_declare_device_resident) | |
6207 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6208 | ||
6209 | if (sym->attr.oacc_declare_create | |
6210 | || sym->attr.oacc_declare_copyin | |
6211 | || sym->attr.oacc_declare_deviceptr | |
6212 | || sym->attr.oacc_declare_device_resident) | |
6213 | { | |
6214 | sym->attr.referenced = 1; | |
6215 | add_clause (sym, map_op); | |
6216 | } | |
6217 | } | |
6218 | } | |
6219 | ||
6220 | ||
6221 | void | |
6222 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6223 | { | |
6224 | gfc_code *code; | |
6225 | gfc_oacc_declare *oc; | |
6226 | locus where = gfc_current_locus; | |
6227 | gfc_omp_clauses *omp_clauses = NULL; | |
6228 | gfc_omp_namelist *n, *p; | |
6229 | ||
6230 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
6231 | ||
6232 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6233 | { | |
6234 | gfc_oacc_declare *new_oc; | |
6235 | ||
6236 | new_oc = gfc_get_oacc_declare (); | |
6237 | new_oc->next = ns->oacc_declare; | |
6238 | new_oc->clauses = module_oacc_clauses; | |
6239 | ||
6240 | ns->oacc_declare = new_oc; | |
6241 | module_oacc_clauses = NULL; | |
6242 | } | |
6243 | ||
6244 | if (!ns->oacc_declare) | |
6245 | return; | |
6246 | ||
6247 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6248 | { | |
6249 | if (oc->module_var) | |
6250 | continue; | |
6251 | ||
6252 | if (block) | |
e711928b | 6253 | gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed " |
dc7a8b4b JN |
6254 | "in BLOCK construct", &oc->loc); |
6255 | ||
6256 | ||
6257 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6258 | { | |
6259 | if (omp_clauses == NULL) | |
6260 | { | |
6261 | omp_clauses = oc->clauses; | |
6262 | continue; | |
6263 | } | |
6264 | ||
6265 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6266 | ; | |
6267 | ||
6268 | gcc_assert (p->next == NULL); | |
6269 | ||
6270 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6271 | omp_clauses = oc->clauses; | |
6272 | } | |
6273 | } | |
6274 | ||
6275 | if (!omp_clauses) | |
6276 | return; | |
6277 | ||
6278 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6279 | { | |
6280 | switch (n->u.map_op) | |
6281 | { | |
6282 | case OMP_MAP_DEVICE_RESIDENT: | |
6283 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6284 | break; | |
6285 | ||
6286 | default: | |
6287 | break; | |
6288 | } | |
6289 | } | |
6290 | ||
6291 | code = XCNEW (gfc_code); | |
6292 | code->op = EXEC_OACC_DECLARE; | |
6293 | code->loc = where; | |
6294 | ||
6295 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6296 | code->ext.oacc_declare->clauses = omp_clauses; | |
6297 | ||
6298 | code->block = XCNEW (gfc_code); | |
6299 | code->block->op = EXEC_OACC_DECLARE; | |
6300 | code->block->loc = where; | |
6301 | ||
6302 | if (ns->code) | |
6303 | code->block->next = ns->code; | |
6304 | ||
6305 | ns->code = code; | |
6306 | ||
6307 | return; | |
6308 | } | |
6309 | ||
6310 | ||
6de9cd9a DN |
6311 | /* Generate code for a function. */ |
6312 | ||
6313 | void | |
6314 | gfc_generate_function_code (gfc_namespace * ns) | |
6315 | { | |
6316 | tree fndecl; | |
6317 | tree old_context; | |
6318 | tree decl; | |
6319 | tree tmp; | |
8b198102 | 6320 | tree fpstate = NULL_TREE; |
d74d8807 | 6321 | stmtblock_t init, cleanup; |
6de9cd9a | 6322 | stmtblock_t body; |
d74d8807 | 6323 | gfc_wrapped_block try_block; |
702a738b | 6324 | tree recurcheckvar = NULL_TREE; |
6de9cd9a | 6325 | gfc_symbol *sym; |
d74d8807 | 6326 | gfc_symbol *previous_procedure_symbol; |
8b198102 | 6327 | int rank, ieee; |
cf7d2eb0 | 6328 | bool is_recursive; |
6de9cd9a DN |
6329 | |
6330 | sym = ns->proc_name; | |
d74d8807 DK |
6331 | previous_procedure_symbol = current_procedure_symbol; |
6332 | current_procedure_symbol = sym; | |
3d79abbd | 6333 | |
345bd7eb PT |
6334 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6335 | lost or worse. */ | |
6de9cd9a DN |
6336 | sym->tlink = sym; |
6337 | ||
6338 | /* Create the declaration for functions with global scope. */ | |
6339 | if (!sym->backend_decl) | |
fb55ca75 | 6340 | gfc_create_function_decl (ns, false); |
6de9cd9a DN |
6341 | |
6342 | fndecl = sym->backend_decl; | |
6343 | old_context = current_function_decl; | |
6344 | ||
6345 | if (old_context) | |
6346 | { | |
6347 | push_function_context (); | |
6348 | saved_parent_function_decls = saved_function_decls; | |
6349 | saved_function_decls = NULL_TREE; | |
6350 | } | |
6351 | ||
3d79abbd | 6352 | trans_function_start (sym); |
6de9cd9a | 6353 | |
d74d8807 | 6354 | gfc_init_block (&init); |
6de9cd9a | 6355 | |
d198b59a JJ |
6356 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6357 | { | |
6358 | /* Copy length backend_decls to all entry point result | |
6359 | symbols. */ | |
6360 | gfc_entry_list *el; | |
6361 | tree backend_decl; | |
6362 | ||
bc21d315 JW |
6363 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6364 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
d198b59a | 6365 | for (el = ns->entries; el; el = el->next) |
bc21d315 | 6366 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
d198b59a JJ |
6367 | } |
6368 | ||
6de9cd9a DN |
6369 | /* Translate COMMON blocks. */ |
6370 | gfc_trans_common (ns); | |
6371 | ||
5f20c93a PT |
6372 | /* Null the parent fake result declaration if this namespace is |
6373 | a module function or an external procedures. */ | |
6374 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6375 | || ns->parent == NULL) | |
6376 | parent_fake_result_decl = NULL_TREE; | |
6377 | ||
30aabb86 PT |
6378 | gfc_generate_contained_functions (ns); |
6379 | ||
77f2a970 JJ |
6380 | nonlocal_dummy_decls = NULL; |
6381 | nonlocal_dummy_decl_pset = NULL; | |
6382 | ||
b8ff4e88 | 6383 | has_coarray_vars = false; |
6de9cd9a | 6384 | generate_local_vars (ns); |
7389bce6 | 6385 | |
f19626cf | 6386 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
6387 | generate_coarray_init (ns); |
6388 | ||
5f20c93a PT |
6389 | /* Keep the parent fake result declaration in module functions |
6390 | or external procedures. */ | |
6391 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6392 | || ns->parent == NULL) | |
6393 | current_fake_result_decl = parent_fake_result_decl; | |
6394 | else | |
6395 | current_fake_result_decl = NULL_TREE; | |
6396 | ||
d74d8807 DK |
6397 | is_recursive = sym->attr.recursive |
6398 | || (sym->attr.entry_master | |
6399 | && sym->ns->entries->sym->attr.recursive); | |
6400 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
c61819ff | 6401 | && !is_recursive && !flag_recursive) |
d74d8807 DK |
6402 | { |
6403 | char * msg; | |
6404 | ||
1a33dc9e UB |
6405 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6406 | sym->name); | |
63ee5404 | 6407 | recurcheckvar = gfc_create_var (logical_type_node, "is_recursive"); |
d74d8807 | 6408 | TREE_STATIC (recurcheckvar) = 1; |
63ee5404 | 6409 | DECL_INITIAL (recurcheckvar) = logical_false_node; |
d74d8807 DK |
6410 | gfc_add_expr_to_block (&init, recurcheckvar); |
6411 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6412 | &sym->declared_at, msg); | |
63ee5404 | 6413 | gfc_add_modify (&init, recurcheckvar, logical_true_node); |
cede9502 | 6414 | free (msg); |
d74d8807 | 6415 | } |
6de9cd9a | 6416 | |
8b198102 FXC |
6417 | /* Check if an IEEE module is used in the procedure. If so, save |
6418 | the floating point state. */ | |
6419 | ieee = is_ieee_module_used (ns); | |
6420 | if (ieee) | |
3b7ea188 | 6421 | fpstate = gfc_save_fp_state (&init); |
8b198102 | 6422 | |
6de9cd9a DN |
6423 | /* Now generate the code for the body of this function. */ |
6424 | gfc_init_block (&body); | |
6425 | ||
6426 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
d74d8807 | 6427 | && sym->attr.subroutine) |
6de9cd9a DN |
6428 | { |
6429 | tree alternate_return; | |
5f20c93a | 6430 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
726a989a | 6431 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
6de9cd9a DN |
6432 | } |
6433 | ||
3d79abbd PB |
6434 | if (ns->entries) |
6435 | { | |
6436 | /* Jump to the correct entry point. */ | |
6437 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6438 | gfc_add_expr_to_block (&body, tmp); | |
6439 | } | |
6440 | ||
cadb8f42 DK |
6441 | /* If bounds-checking is enabled, generate code to check passed in actual |
6442 | arguments against the expected dummy argument attributes (e.g. string | |
6443 | lengths). */ | |
975d3303 | 6444 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
cadb8f42 DK |
6445 | add_argument_checking (&body, sym); |
6446 | ||
dc7a8b4b | 6447 | finish_oacc_declare (ns, sym, false); |
41dbbb37 | 6448 | |
6de9cd9a DN |
6449 | tmp = gfc_trans_code (ns->code); |
6450 | gfc_add_expr_to_block (&body, tmp); | |
6451 | ||
c16126ac AV |
6452 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6453 | || (sym->result && sym->result != sym | |
6454 | && sym->result->ts.type == BT_DERIVED | |
6455 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
6de9cd9a | 6456 | { |
c16126ac | 6457 | bool artificial_result_decl = false; |
d74d8807 | 6458 | tree result = get_proc_result (sym); |
c16126ac AV |
6459 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6460 | ||
6461 | /* Make sure that a function returning an object with | |
6462 | alloc/pointer_components always has a result, where at least | |
6463 | the allocatable/pointer components are set to zero. */ | |
6464 | if (result == NULL_TREE && sym->attr.function | |
6465 | && ((sym->result->ts.type == BT_DERIVED | |
6466 | && (sym->attr.allocatable | |
6467 | || sym->attr.pointer | |
6468 | || sym->result->ts.u.derived->attr.alloc_comp | |
6469 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6470 | || (sym->result->ts.type == BT_CLASS | |
6471 | && (CLASS_DATA (sym)->attr.allocatable | |
6472 | || CLASS_DATA (sym)->attr.class_pointer | |
6473 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6474 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6475 | { | |
6476 | artificial_result_decl = true; | |
6477 | result = gfc_get_fake_result_decl (sym, 0); | |
6478 | } | |
6de9cd9a | 6479 | |
7a3eeb85 | 6480 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
5046aff5 | 6481 | { |
f18694de TB |
6482 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6483 | && sym->result == sym) | |
6484 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6485 | null_pointer_node)); | |
7a3eeb85 JW |
6486 | else if (sym->ts.type == BT_CLASS |
6487 | && CLASS_DATA (sym)->attr.allocatable | |
102344e2 TB |
6488 | && CLASS_DATA (sym)->attr.dimension == 0 |
6489 | && sym->result == sym) | |
7a3eeb85 JW |
6490 | { |
6491 | tmp = CLASS_DATA (sym)->backend_decl; | |
6492 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6493 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6494 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6495 | null_pointer_node)); | |
6496 | } | |
f18694de | 6497 | else if (sym->ts.type == BT_DERIVED |
7a3eeb85 | 6498 | && !sym->attr.allocatable) |
5b130807 | 6499 | { |
c16126ac AV |
6500 | gfc_expr *init_exp; |
6501 | /* Arrays are not initialized using the default initializer of | |
6502 | their elements. Therefore only check if a default | |
6503 | initializer is available when the result is scalar. */ | |
7fc61626 FR |
6504 | init_exp = rsym->as ? NULL |
6505 | : gfc_generate_initializer (&rsym->ts, true); | |
c16126ac AV |
6506 | if (init_exp) |
6507 | { | |
6508 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6509 | gfc_free_expr (init_exp); | |
6510 | gfc_add_expr_to_block (&init, tmp); | |
6511 | } | |
6512 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6513 | { | |
6514 | rank = rsym->as ? rsym->as->rank : 0; | |
6515 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6516 | rank); | |
6517 | gfc_prepend_expr_to_block (&body, tmp); | |
6518 | } | |
5b130807 | 6519 | } |
958dd42b | 6520 | } |
cf7d2eb0 | 6521 | |
c16126ac | 6522 | if (result == NULL_TREE || artificial_result_decl) |
766d0c8c DF |
6523 | { |
6524 | /* TODO: move to the appropriate place in resolve.c. */ | |
134d2354 | 6525 | if (warn_return_type > 0 && sym == sym->result) |
48749dbc MLI |
6526 | gfc_warning (OPT_Wreturn_type, |
6527 | "Return value of function %qs at %L not set", | |
766d0c8c | 6528 | sym->name, &sym->declared_at); |
134d2354 | 6529 | if (warn_return_type > 0) |
fba5ace0 | 6530 | TREE_NO_WARNING(sym->backend_decl) = 1; |
766d0c8c | 6531 | } |
c16126ac | 6532 | if (result != NULL_TREE) |
d74d8807 | 6533 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
6de9cd9a | 6534 | } |
d74d8807 DK |
6535 | |
6536 | gfc_init_block (&cleanup); | |
6537 | ||
6538 | /* Reset recursion-check variable. */ | |
6539 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
c61819ff | 6540 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
cf7d2eb0 | 6541 | { |
63ee5404 | 6542 | gfc_add_modify (&cleanup, recurcheckvar, logical_false_node); |
d74d8807 | 6543 | recurcheckvar = NULL; |
cf7d2eb0 | 6544 | } |
5046aff5 | 6545 | |
8b198102 FXC |
6546 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6547 | if (ieee) | |
3b7ea188 | 6548 | gfc_restore_fp_state (&cleanup, fpstate); |
8b198102 | 6549 | |
d74d8807 DK |
6550 | /* Finish the function body and add init and cleanup code. */ |
6551 | tmp = gfc_finish_block (&body); | |
6552 | gfc_start_wrapped_block (&try_block, tmp); | |
6553 | /* Add code to create and cleanup arrays. */ | |
6554 | gfc_trans_deferred_vars (sym, &try_block); | |
6555 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6556 | gfc_finish_block (&cleanup)); | |
6de9cd9a DN |
6557 | |
6558 | /* Add all the decls we created during processing. */ | |
79a592e3 | 6559 | decl = nreverse (saved_function_decls); |
6de9cd9a DN |
6560 | while (decl) |
6561 | { | |
6562 | tree next; | |
6563 | ||
910ad8de NF |
6564 | next = DECL_CHAIN (decl); |
6565 | DECL_CHAIN (decl) = NULL_TREE; | |
755634e6 | 6566 | pushdecl (decl); |
6de9cd9a DN |
6567 | decl = next; |
6568 | } | |
6569 | saved_function_decls = NULL_TREE; | |
6570 | ||
d74d8807 | 6571 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
c7c79a09 | 6572 | decl = getdecls (); |
6de9cd9a DN |
6573 | |
6574 | /* Finish off this function and send it for code generation. */ | |
87a60f68 | 6575 | poplevel (1, 1); |
6de9cd9a DN |
6576 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6577 | ||
c7c79a09 JJ |
6578 | DECL_SAVED_TREE (fndecl) |
6579 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6580 | DECL_INITIAL (fndecl)); | |
6581 | ||
77f2a970 JJ |
6582 | if (nonlocal_dummy_decls) |
6583 | { | |
6584 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6585 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
6e2830c3 | 6586 | delete nonlocal_dummy_decl_pset; |
77f2a970 JJ |
6587 | nonlocal_dummy_decls = NULL; |
6588 | nonlocal_dummy_decl_pset = NULL; | |
6589 | } | |
6590 | ||
6de9cd9a DN |
6591 | /* Output the GENERIC tree. */ |
6592 | dump_function (TDI_original, fndecl); | |
6593 | ||
6594 | /* Store the end of the function, so that we get good line number | |
6595 | info for the epilogue. */ | |
6596 | cfun->function_end_locus = input_location; | |
6597 | ||
6598 | /* We're leaving the context of this function, so zap cfun. | |
6599 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6600 | tree_rest_of_compilation. */ | |
db2960f4 | 6601 | set_cfun (NULL); |
6de9cd9a DN |
6602 | |
6603 | if (old_context) | |
6604 | { | |
6605 | pop_function_context (); | |
6606 | saved_function_decls = saved_parent_function_decls; | |
6607 | } | |
6608 | current_function_decl = old_context; | |
6609 | ||
15682f24 MJ |
6610 | if (decl_function_context (fndecl)) |
6611 | { | |
6612 | /* Register this function with cgraph just far enough to get it | |
6613 | added to our parent's nested function list. | |
6614 | If there are static coarrays in this function, the nested _caf_init | |
6615 | function has already called cgraph_create_node, which also created | |
6616 | the cgraph node for this function. */ | |
f19626cf | 6617 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
e7980add | 6618 | (void) cgraph_node::get_create (fndecl); |
15682f24 | 6619 | } |
6de9cd9a | 6620 | else |
3dafb85c | 6621 | cgraph_node::finalize_function (fndecl, true); |
a64f5186 JJ |
6622 | |
6623 | gfc_trans_use_stmts (ns); | |
bd11e37d | 6624 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
092231a8 TB |
6625 | |
6626 | if (sym->attr.is_main_program) | |
6627 | create_main_function (fndecl); | |
d74d8807 DK |
6628 | |
6629 | current_procedure_symbol = previous_procedure_symbol; | |
6de9cd9a DN |
6630 | } |
6631 | ||
092231a8 | 6632 | |
6de9cd9a DN |
6633 | void |
6634 | gfc_generate_constructors (void) | |
6635 | { | |
6e45f57b | 6636 | gcc_assert (gfc_static_ctors == NULL_TREE); |
6de9cd9a DN |
6637 | #if 0 |
6638 | tree fnname; | |
6639 | tree type; | |
6640 | tree fndecl; | |
6641 | tree decl; | |
6642 | tree tmp; | |
6643 | ||
6644 | if (gfc_static_ctors == NULL_TREE) | |
6645 | return; | |
6646 | ||
5880f14f | 6647 | fnname = get_file_function_name ("I"); |
b64fca63 | 6648 | type = build_function_type_list (void_type_node, NULL_TREE); |
6de9cd9a | 6649 | |
c2255bc4 AH |
6650 | fndecl = build_decl (input_location, |
6651 | FUNCTION_DECL, fnname, type); | |
6de9cd9a DN |
6652 | TREE_PUBLIC (fndecl) = 1; |
6653 | ||
c2255bc4 AH |
6654 | decl = build_decl (input_location, |
6655 | RESULT_DECL, NULL_TREE, void_type_node); | |
b785f485 RH |
6656 | DECL_ARTIFICIAL (decl) = 1; |
6657 | DECL_IGNORED_P (decl) = 1; | |
6de9cd9a DN |
6658 | DECL_CONTEXT (decl) = fndecl; |
6659 | DECL_RESULT (fndecl) = decl; | |
6660 | ||
6661 | pushdecl (fndecl); | |
6662 | ||
6663 | current_function_decl = fndecl; | |
6664 | ||
0e6df31e | 6665 | rest_of_decl_compilation (fndecl, 1, 0); |
6de9cd9a | 6666 | |
0e6df31e | 6667 | make_decl_rtl (fndecl); |
6de9cd9a | 6668 | |
b6b27e98 | 6669 | allocate_struct_function (fndecl, false); |
6de9cd9a | 6670 | |
87a60f68 | 6671 | pushlevel (); |
6de9cd9a DN |
6672 | |
6673 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6674 | { | |
db3927fb AH |
6675 | tmp = build_call_expr_loc (input_location, |
6676 | TREE_VALUE (gfc_static_ctors), 0); | |
c2255bc4 | 6677 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
6de9cd9a DN |
6678 | } |
6679 | ||
c7c79a09 | 6680 | decl = getdecls (); |
87a60f68 | 6681 | poplevel (1, 1); |
6de9cd9a DN |
6682 | |
6683 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
c7c79a09 JJ |
6684 | DECL_SAVED_TREE (fndecl) |
6685 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6686 | DECL_INITIAL (fndecl)); | |
6de9cd9a DN |
6687 | |
6688 | free_after_parsing (cfun); | |
6689 | free_after_compilation (cfun); | |
6690 | ||
0f0377f6 | 6691 | tree_rest_of_compilation (fndecl); |
6de9cd9a DN |
6692 | |
6693 | current_function_decl = NULL_TREE; | |
6694 | #endif | |
6695 | } | |
6696 | ||
0de4325e TS |
6697 | /* Translates a BLOCK DATA program unit. This means emitting the |
6698 | commons contained therein plus their initializations. We also emit | |
6699 | a globally visible symbol to make sure that each BLOCK DATA program | |
6700 | unit remains unique. */ | |
6701 | ||
6702 | void | |
6703 | gfc_generate_block_data (gfc_namespace * ns) | |
6704 | { | |
6705 | tree decl; | |
6706 | tree id; | |
6707 | ||
c8cc8542 PB |
6708 | /* Tell the backend the source location of the block data. */ |
6709 | if (ns->proc_name) | |
6710 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6711 | else | |
6712 | gfc_set_backend_locus (&gfc_current_locus); | |
6713 | ||
6714 | /* Process the DATA statements. */ | |
0de4325e TS |
6715 | gfc_trans_common (ns); |
6716 | ||
c8cc8542 PB |
6717 | /* Create a global symbol with the mane of the block data. This is to |
6718 | generate linker errors if the same name is used twice. It is never | |
6719 | really used. */ | |
0de4325e TS |
6720 | if (ns->proc_name) |
6721 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6722 | else | |
6723 | id = get_identifier ("__BLOCK_DATA__"); | |
6724 | ||
c2255bc4 AH |
6725 | decl = build_decl (input_location, |
6726 | VAR_DECL, id, gfc_array_index_type); | |
0de4325e TS |
6727 | TREE_PUBLIC (decl) = 1; |
6728 | TREE_STATIC (decl) = 1; | |
a64f5186 | 6729 | DECL_IGNORED_P (decl) = 1; |
0de4325e TS |
6730 | |
6731 | pushdecl (decl); | |
6732 | rest_of_decl_compilation (decl, 1, 0); | |
6733 | } | |
6734 | ||
83d890b9 | 6735 | |
9abe5e56 DK |
6736 | /* Process the local variables of a BLOCK construct. */ |
6737 | ||
6738 | void | |
6312ef45 | 6739 | gfc_process_block_locals (gfc_namespace* ns) |
9abe5e56 DK |
6740 | { |
6741 | tree decl; | |
6742 | ||
6743 | gcc_assert (saved_local_decls == NULL_TREE); | |
b8ff4e88 TB |
6744 | has_coarray_vars = false; |
6745 | ||
9abe5e56 DK |
6746 | generate_local_vars (ns); |
6747 | ||
f19626cf | 6748 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
6749 | generate_coarray_init (ns); |
6750 | ||
79a592e3 | 6751 | decl = nreverse (saved_local_decls); |
9abe5e56 DK |
6752 | while (decl) |
6753 | { | |
6754 | tree next; | |
6755 | ||
910ad8de NF |
6756 | next = DECL_CHAIN (decl); |
6757 | DECL_CHAIN (decl) = NULL_TREE; | |
9abe5e56 DK |
6758 | pushdecl (decl); |
6759 | decl = next; | |
6760 | } | |
6761 | saved_local_decls = NULL_TREE; | |
6762 | } | |
6763 | ||
6764 | ||
6de9cd9a | 6765 | #include "gt-fortran-trans-decl.h" |