]>
Commit | Line | Data |
---|---|---|
4ee9c684 | 1 | /* Backend function setup |
711789cc | 2 | Copyright (C) 2002-2013 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
cb4070e0 | 26 | #include "tm.h" |
4ee9c684 | 27 | #include "tree.h" |
28 | #include "tree-dump.h" | |
989adef3 | 29 | #include "gimple.h" /* For create_tmp_var_raw. */ |
4ee9c684 | 30 | #include "ggc.h" |
7cbc820e | 31 | #include "diagnostic-core.h" /* For internal_error. */ |
32 | #include "toplev.h" /* For announce_function. */ | |
4ee9c684 | 33 | #include "target.h" |
34 | #include "function.h" | |
4ee9c684 | 35 | #include "flags.h" |
36 | #include "cgraph.h" | |
df4d540f | 37 | #include "debug.h" |
4ee9c684 | 38 | #include "gfortran.h" |
9579733e | 39 | #include "pointer-set.h" |
126387b5 | 40 | #include "constructor.h" |
4ee9c684 | 41 | #include "trans.h" |
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" | |
47 | ||
48 | #define MAX_LABEL_VALUE 99999 | |
49 | ||
50 | ||
51 | /* Holds the result of the function if no result variable specified. */ | |
52 | ||
53 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 54 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 55 | |
4ee9c684 | 56 | |
57 | /* Holds the variable DECLs for the current function. */ | |
58 | ||
d4163395 | 59 | static GTY(()) tree saved_function_decls; |
60 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 61 | |
9579733e | 62 | static struct pointer_set_t *nonlocal_dummy_decl_pset; |
63 | static GTY(()) tree nonlocal_dummy_decls; | |
4ee9c684 | 64 | |
6a7084d7 | 65 | /* Holds the variable DECLs that are locals. */ |
66 | ||
67 | static GTY(()) tree saved_local_decls; | |
68 | ||
4ee9c684 | 69 | /* The namespace of the module we're currently generating. Only used while |
70 | outputting decls for module variables. Do not rely on this being set. */ | |
71 | ||
72 | static gfc_namespace *module_namespace; | |
73 | ||
89ac8ba1 | 74 | /* The currently processed procedure symbol. */ |
75 | static gfc_symbol* current_procedure_symbol = NULL; | |
76 | ||
4ee9c684 | 77 | |
a961ca30 | 78 | /* With -fcoarray=lib: For generating the registering call |
79 | of static coarrays. */ | |
80 | static bool has_coarray_vars; | |
81 | static stmtblock_t caf_init_block; | |
82 | ||
83 | ||
4ee9c684 | 84 | /* List of static constructor functions. */ |
85 | ||
86 | tree gfc_static_ctors; | |
87 | ||
88 | ||
89 | /* Function declarations for builtin library functions. */ | |
90 | ||
4ee9c684 | 91 | tree gfor_fndecl_pause_numeric; |
92 | tree gfor_fndecl_pause_string; | |
93 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 94 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 95 | tree gfor_fndecl_stop_string; |
070cc790 | 96 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 97 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 98 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 99 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 100 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 101 | tree gfor_fndecl_os_error; |
50ad5fa2 | 102 | tree gfor_fndecl_generate_error; |
7257a5d2 | 103 | tree gfor_fndecl_set_args; |
8c84a5de | 104 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 105 | tree gfor_fndecl_set_options; |
15774a8b | 106 | tree gfor_fndecl_set_convert; |
f23886ab | 107 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 108 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 109 | tree gfor_fndecl_ctime; |
110 | tree gfor_fndecl_fdate; | |
dbc97b88 | 111 | tree gfor_fndecl_ttynam; |
4ee9c684 | 112 | tree gfor_fndecl_in_pack; |
113 | tree gfor_fndecl_in_unpack; | |
114 | tree gfor_fndecl_associated; | |
115 | ||
116 | ||
70b5944a | 117 | /* Coarray run-time library function decls. */ |
118 | tree gfor_fndecl_caf_init; | |
119 | tree gfor_fndecl_caf_finalize; | |
a961ca30 | 120 | tree gfor_fndecl_caf_register; |
d0d776fb | 121 | tree gfor_fndecl_caf_deregister; |
70b5944a | 122 | tree gfor_fndecl_caf_critical; |
123 | tree gfor_fndecl_caf_end_critical; | |
124 | tree gfor_fndecl_caf_sync_all; | |
125 | tree gfor_fndecl_caf_sync_images; | |
126 | tree gfor_fndecl_caf_error_stop; | |
127 | tree gfor_fndecl_caf_error_stop_str; | |
128 | ||
129 | /* Coarray global variables for num_images/this_image. */ | |
130 | ||
131 | tree gfort_gvar_caf_num_images; | |
132 | tree gfort_gvar_caf_this_image; | |
133 | ||
134 | ||
4ee9c684 | 135 | /* Math functions. Many other math functions are handled in |
136 | trans-intrinsic.c. */ | |
137 | ||
920e54ef | 138 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 139 | tree gfor_fndecl_math_ishftc4; |
140 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 141 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 142 | |
143 | ||
144 | /* String functions. */ | |
145 | ||
4ee9c684 | 146 | tree gfor_fndecl_compare_string; |
147 | tree gfor_fndecl_concat_string; | |
148 | tree gfor_fndecl_string_len_trim; | |
149 | tree gfor_fndecl_string_index; | |
150 | tree gfor_fndecl_string_scan; | |
151 | tree gfor_fndecl_string_verify; | |
152 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 153 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 154 | tree gfor_fndecl_adjustl; |
155 | tree gfor_fndecl_adjustr; | |
b44437b9 | 156 | tree gfor_fndecl_select_string; |
40b806de | 157 | tree gfor_fndecl_compare_string_char4; |
158 | tree gfor_fndecl_concat_string_char4; | |
159 | tree gfor_fndecl_string_len_trim_char4; | |
160 | tree gfor_fndecl_string_index_char4; | |
161 | tree gfor_fndecl_string_scan_char4; | |
162 | tree gfor_fndecl_string_verify_char4; | |
163 | tree gfor_fndecl_string_trim_char4; | |
164 | tree gfor_fndecl_string_minmax_char4; | |
165 | tree gfor_fndecl_adjustl_char4; | |
166 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 167 | tree gfor_fndecl_select_string_char4; |
168 | ||
169 | ||
170 | /* Conversion between character kinds. */ | |
171 | tree gfor_fndecl_convert_char1_to_char4; | |
172 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 173 | |
174 | ||
175 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 176 | tree gfor_fndecl_size0; |
177 | tree gfor_fndecl_size1; | |
9b057c29 | 178 | tree gfor_fndecl_iargc; |
4ee9c684 | 179 | |
59e2a584 | 180 | /* Intrinsic functions implemented in Fortran. */ |
181 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 182 | tree gfor_fndecl_si_kind; |
183 | tree gfor_fndecl_sr_kind; | |
184 | ||
4e8e57b0 | 185 | /* BLAS gemm functions. */ |
186 | tree gfor_fndecl_sgemm; | |
187 | tree gfor_fndecl_dgemm; | |
188 | tree gfor_fndecl_cgemm; | |
189 | tree gfor_fndecl_zgemm; | |
190 | ||
4ee9c684 | 191 | |
192 | static void | |
193 | gfc_add_decl_to_parent_function (tree decl) | |
194 | { | |
22d678e8 | 195 | gcc_assert (decl); |
4ee9c684 | 196 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
197 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 198 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 199 | saved_parent_function_decls = decl; |
200 | } | |
201 | ||
202 | void | |
203 | gfc_add_decl_to_function (tree decl) | |
204 | { | |
22d678e8 | 205 | gcc_assert (decl); |
4ee9c684 | 206 | TREE_USED (decl) = 1; |
207 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 208 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 209 | saved_function_decls = decl; |
210 | } | |
211 | ||
6a7084d7 | 212 | static void |
213 | add_decl_as_local (tree decl) | |
214 | { | |
215 | gcc_assert (decl); | |
216 | TREE_USED (decl) = 1; | |
217 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 218 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 219 | saved_local_decls = decl; |
220 | } | |
221 | ||
4ee9c684 | 222 | |
b797d6d3 | 223 | /* Build a backend label declaration. Set TREE_USED for named labels. |
224 | The context of the label is always the current_function_decl. All | |
225 | labels are marked artificial. */ | |
4ee9c684 | 226 | |
227 | tree | |
228 | gfc_build_label_decl (tree label_id) | |
229 | { | |
230 | /* 2^32 temporaries should be enough. */ | |
231 | static unsigned int tmp_num = 1; | |
232 | tree label_decl; | |
233 | char *label_name; | |
234 | ||
235 | if (label_id == NULL_TREE) | |
236 | { | |
237 | /* Build an internal label name. */ | |
238 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
239 | label_id = get_identifier (label_name); | |
240 | } | |
241 | else | |
242 | label_name = NULL; | |
243 | ||
244 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 245 | label_decl = build_decl (input_location, |
246 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 247 | DECL_CONTEXT (label_decl) = current_function_decl; |
248 | DECL_MODE (label_decl) = VOIDmode; | |
249 | ||
b797d6d3 | 250 | /* We always define the label as used, even if the original source |
251 | file never references the label. We don't want all kinds of | |
252 | spurious warnings for old-style Fortran code with too many | |
253 | labels. */ | |
254 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 255 | |
b797d6d3 | 256 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 257 | return label_decl; |
258 | } | |
259 | ||
260 | ||
b31f705b | 261 | /* Set the backend source location of a decl. */ |
262 | ||
263 | void | |
264 | gfc_set_decl_location (tree decl, locus * loc) | |
265 | { | |
b31f705b | 266 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 267 | } |
268 | ||
269 | ||
4ee9c684 | 270 | /* Return the backend label declaration for a given label structure, |
271 | or create it if it doesn't exist yet. */ | |
272 | ||
273 | tree | |
274 | gfc_get_label_decl (gfc_st_label * lp) | |
275 | { | |
4ee9c684 | 276 | if (lp->backend_decl) |
277 | return lp->backend_decl; | |
278 | else | |
279 | { | |
280 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
281 | tree label_decl; | |
282 | ||
283 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 284 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 285 | |
286 | /* Build a mangled name for the label. */ | |
287 | sprintf (label_name, "__label_%.6d", lp->value); | |
288 | ||
289 | /* Build the LABEL_DECL node. */ | |
290 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
291 | ||
292 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 293 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 294 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 295 | else |
296 | DECL_ARTIFICIAL (label_decl) = 1; | |
297 | ||
298 | /* Store the label in the label list and return the LABEL_DECL. */ | |
299 | lp->backend_decl = label_decl; | |
300 | return label_decl; | |
301 | } | |
302 | } | |
303 | ||
304 | ||
305 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
306 | ||
307 | static tree | |
308 | gfc_sym_identifier (gfc_symbol * sym) | |
309 | { | |
0509d0ee | 310 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
311 | return (get_identifier ("MAIN__")); | |
312 | else | |
313 | return (get_identifier (sym->name)); | |
4ee9c684 | 314 | } |
315 | ||
316 | ||
317 | /* Construct mangled name from symbol name. */ | |
318 | ||
319 | static tree | |
320 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
321 | { | |
322 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
323 | ||
c5d33754 | 324 | /* Prevent the mangling of identifiers that have an assigned |
325 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 326 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
327 | return get_identifier (sym->binding_label); | |
a90fe829 | 328 | |
4f0fae8e | 329 | if (sym->module == NULL) |
4ee9c684 | 330 | return gfc_sym_identifier (sym); |
331 | else | |
332 | { | |
f08a3f6f | 333 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 334 | return get_identifier (name); |
335 | } | |
336 | } | |
337 | ||
338 | ||
339 | /* Construct mangled function name from symbol name. */ | |
340 | ||
341 | static tree | |
342 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
343 | { | |
344 | int has_underscore; | |
345 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
346 | ||
c5d33754 | 347 | /* It may be possible to simply use the binding label if it's |
348 | provided, and remove the other checks. Then we could use it | |
349 | for other things if we wished. */ | |
350 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 351 | sym->binding_label) |
c5d33754 | 352 | /* use the binding label rather than the mangled name */ |
353 | return get_identifier (sym->binding_label); | |
354 | ||
4f0fae8e | 355 | if (sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 356 | || (sym->module != NULL && (sym->attr.external |
357 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4ee9c684 | 358 | { |
a2f97da7 | 359 | /* Main program is mangled into MAIN__. */ |
360 | if (sym->attr.is_main_program) | |
361 | return get_identifier ("MAIN__"); | |
362 | ||
363 | /* Intrinsic procedures are never mangled. */ | |
364 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 365 | return get_identifier (sym->name); |
366 | ||
367 | if (gfc_option.flag_underscoring) | |
368 | { | |
369 | has_underscore = strchr (sym->name, '_') != 0; | |
370 | if (gfc_option.flag_second_underscore && has_underscore) | |
371 | snprintf (name, sizeof name, "%s__", sym->name); | |
372 | else | |
373 | snprintf (name, sizeof name, "%s_", sym->name); | |
374 | return get_identifier (name); | |
375 | } | |
376 | else | |
377 | return get_identifier (sym->name); | |
378 | } | |
379 | else | |
380 | { | |
f08a3f6f | 381 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 382 | return get_identifier (name); |
383 | } | |
384 | } | |
385 | ||
386 | ||
1236e28b | 387 | void |
388 | gfc_set_decl_assembler_name (tree decl, tree name) | |
389 | { | |
390 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
391 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
392 | } | |
393 | ||
394 | ||
5ed82495 | 395 | /* Returns true if a variable of specified size should go on the stack. */ |
396 | ||
397 | int | |
398 | gfc_can_put_var_on_stack (tree size) | |
399 | { | |
400 | unsigned HOST_WIDE_INT low; | |
401 | ||
402 | if (!INTEGER_CST_P (size)) | |
403 | return 0; | |
404 | ||
405 | if (gfc_option.flag_max_stack_var_size < 0) | |
406 | return 1; | |
407 | ||
408 | if (TREE_INT_CST_HIGH (size) != 0) | |
409 | return 0; | |
410 | ||
411 | low = TREE_INT_CST_LOW (size); | |
412 | if (low > (unsigned HOST_WIDE_INT) gfc_option.flag_max_stack_var_size) | |
413 | return 0; | |
414 | ||
415 | /* TODO: Set a per-function stack size limit. */ | |
416 | ||
417 | return 1; | |
418 | } | |
419 | ||
420 | ||
b7bf3f81 | 421 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
422 | an expression involving its corresponding pointer. There are | |
423 | 2 cases; one for variable size arrays, and one for everything else, | |
424 | because variable-sized arrays require one fewer level of | |
425 | indirection. */ | |
426 | ||
427 | static void | |
428 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
429 | { | |
430 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
431 | tree value; | |
432 | ||
433 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 434 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 435 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
436 | ptr_decl); | |
b7bf3f81 | 437 | |
438 | /* Check to see if we're dealing with a variable-sized array. */ | |
439 | if (sym->attr.dimension | |
a90fe829 | 440 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
441 | { | |
942043f8 | 442 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 443 | them here. */ |
444 | value = convert (TREE_TYPE (decl), ptr_decl); | |
445 | } | |
446 | else | |
447 | { | |
448 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
449 | ptr_decl); | |
389dd41b | 450 | value = build_fold_indirect_ref_loc (input_location, |
451 | ptr_decl); | |
b7bf3f81 | 452 | } |
453 | ||
454 | SET_DECL_VALUE_EXPR (decl, value); | |
455 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 456 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 457 | } |
458 | ||
459 | ||
b9c7fce7 | 460 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 461 | |
462 | static void | |
b9c7fce7 | 463 | gfc_finish_decl (tree decl) |
4ee9c684 | 464 | { |
b9c7fce7 | 465 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
466 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 467 | |
b9c7fce7 | 468 | if (TREE_CODE (decl) != VAR_DECL) |
469 | return; | |
4ee9c684 | 470 | |
b9c7fce7 | 471 | if (DECL_SIZE (decl) == NULL_TREE |
472 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
473 | layout_decl (decl, 0); | |
474 | ||
475 | /* A few consistency checks. */ | |
476 | /* A static variable with an incomplete type is an error if it is | |
477 | initialized. Also if it is not file scope. Otherwise, let it | |
478 | through, but if it is not `extern' then it may cause an error | |
479 | message later. */ | |
480 | /* An automatic variable with an incomplete type is an error. */ | |
481 | ||
482 | /* We should know the storage size. */ | |
483 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 484 | || (TREE_STATIC (decl) |
b9c7fce7 | 485 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
486 | : DECL_EXTERNAL (decl))); | |
487 | ||
488 | /* The storage size should be constant. */ | |
489 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
490 | || !DECL_SIZE (decl) | |
491 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 492 | } |
493 | ||
494 | ||
495 | /* Apply symbol attributes to a variable, and add it to the function scope. */ | |
496 | ||
497 | static void | |
498 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
499 | { | |
c1977dbe | 500 | tree new_type; |
f888a3fb | 501 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
4ee9c684 | 502 | This is the equivalent of the TARGET variables. |
503 | We also need to set this if the variable is passed by reference in a | |
504 | CALL statement. */ | |
b549d2a5 | 505 | |
b7bf3f81 | 506 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 507 | if (sym->attr.cray_pointee) |
b7bf3f81 | 508 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 509 | |
4ee9c684 | 510 | if (sym->attr.target) |
511 | TREE_ADDRESSABLE (decl) = 1; | |
512 | /* If it wasn't used we wouldn't be getting it. */ | |
513 | TREE_USED (decl) = 1; | |
514 | ||
7415cfe4 | 515 | if (sym->attr.flavor == FL_PARAMETER |
516 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
517 | TREE_READONLY (decl) = 1; | |
518 | ||
4ee9c684 | 519 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
520 | because this would add them to the current scope rather than the | |
521 | function scope. */ | |
522 | if (current_function_decl != NULL_TREE) | |
523 | { | |
7af6a4af | 524 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 525 | || sym->result == sym) |
4ee9c684 | 526 | gfc_add_decl_to_function (decl); |
6a7084d7 | 527 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
528 | /* This is a BLOCK construct. */ | |
529 | add_decl_as_local (decl); | |
4ee9c684 | 530 | else |
531 | gfc_add_decl_to_parent_function (decl); | |
532 | } | |
533 | ||
b7bf3f81 | 534 | if (sym->attr.cray_pointee) |
535 | return; | |
536 | ||
c5cb468c | 537 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 538 | { |
539 | /* We need to put variables that are bind(c) into the common | |
540 | segment of the object file, because this is what C would do. | |
541 | gfortran would typically put them in either the BSS or | |
542 | initialized data segments, and only mark them as common if | |
543 | they were part of common blocks. However, if they are not put | |
ea657963 | 544 | into common space, then C cannot initialize global Fortran |
c5d33754 | 545 | variables that it interoperates with and the draft says that |
546 | either Fortran or C should be able to initialize it (but not | |
547 | both, of course.) (J3/04-007, section 15.3). */ | |
548 | TREE_PUBLIC(decl) = 1; | |
549 | DECL_COMMON(decl) = 1; | |
550 | } | |
a90fe829 | 551 | |
4ee9c684 | 552 | /* If a variable is USE associated, it's always external. */ |
553 | if (sym->attr.use_assoc) | |
554 | { | |
555 | DECL_EXTERNAL (decl) = 1; | |
556 | TREE_PUBLIC (decl) = 1; | |
557 | } | |
4f0fae8e | 558 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 559 | { |
6b20224d | 560 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 561 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
4ee9c684 | 562 | /* This is the declaration of a module variable. */ |
7d6b5754 | 563 | if (sym->attr.access == ACCESS_UNKNOWN |
564 | && (sym->ns->default_access == ACCESS_PRIVATE | |
565 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
566 | && gfc_option.flag_module_private))) | |
567 | sym->attr.access = ACCESS_PRIVATE; | |
568 | ||
87d9f569 | 569 | if (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used) |
c5cb468c | 570 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 571 | TREE_STATIC (decl) = 1; |
572 | } | |
573 | ||
f0d4969f | 574 | /* Derived types are a bit peculiar because of the possibility of |
575 | a default initializer; this must be applied each time the variable | |
576 | comes into scope it therefore need not be static. These variables | |
577 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 578 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 579 | SAVE_EXPLICIT. */ |
580 | if (!sym->attr.use_assoc | |
581 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 582 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
583 | || (gfc_option.coarray == GFC_FCOARRAY_LIB | |
584 | && sym->attr.codimension && !sym->attr.allocatable))) | |
4ee9c684 | 585 | TREE_STATIC (decl) = 1; |
ef814c81 | 586 | |
587 | if (sym->attr.volatile_) | |
588 | { | |
ef814c81 | 589 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 590 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 591 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
592 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 593 | } |
ef814c81 | 594 | |
4ee9c684 | 595 | /* Keep variables larger than max-stack-var-size off stack. */ |
596 | if (!sym->ns->proc_name->attr.recursive | |
597 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 598 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
599 | /* Put variable length auto array pointers always into stack. */ | |
600 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
601 | || sym->attr.dimension == 0 | |
602 | || sym->as->type != AS_EXPLICIT | |
603 | || sym->attr.pointer | |
604 | || sym->attr.allocatable) | |
605 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 606 | TREE_STATIC (decl) = 1; |
764f1175 | 607 | |
608 | /* Handle threadprivate variables. */ | |
9dda1f80 | 609 | if (sym->attr.threadprivate |
764f1175 | 610 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
611 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
4ee9c684 | 612 | } |
613 | ||
614 | ||
615 | /* Allocate the lang-specific part of a decl. */ | |
616 | ||
617 | void | |
618 | gfc_allocate_lang_decl (tree decl) | |
619 | { | |
ba72912a | 620 | DECL_LANG_SPECIFIC (decl) = ggc_alloc_cleared_lang_decl(sizeof |
621 | (struct lang_decl)); | |
4ee9c684 | 622 | } |
623 | ||
624 | /* Remember a symbol to generate initialization/cleanup code at function | |
625 | entry/exit. */ | |
626 | ||
627 | static void | |
628 | gfc_defer_symbol_init (gfc_symbol * sym) | |
629 | { | |
630 | gfc_symbol *p; | |
631 | gfc_symbol *last; | |
632 | gfc_symbol *head; | |
633 | ||
634 | /* Don't add a symbol twice. */ | |
635 | if (sym->tlink) | |
636 | return; | |
637 | ||
638 | last = head = sym->ns->proc_name; | |
639 | p = last->tlink; | |
640 | ||
641 | /* Make sure that setup code for dummy variables which are used in the | |
642 | setup of other variables is generated first. */ | |
643 | if (sym->attr.dummy) | |
644 | { | |
645 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
646 | This is a circular list, so don't go past the head. */ | |
647 | while (p != head | |
648 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
649 | { | |
650 | last = p; | |
651 | p = p->tlink; | |
652 | } | |
653 | } | |
654 | /* Insert in between last and p. */ | |
655 | last->tlink = sym; | |
656 | sym->tlink = p; | |
657 | } | |
658 | ||
659 | ||
9f5a9ac5 | 660 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
661 | backend_decl for a module symbol, if it all ready exists. If the | |
662 | module gsymbol does not exist, it is created. If the symbol does | |
663 | not exist, it is added to the gsymbol namespace. Returns true if | |
664 | an existing backend_decl is found. */ | |
665 | ||
666 | bool | |
667 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
668 | { | |
669 | gfc_gsymbol *gsym; | |
670 | gfc_symbol *s; | |
671 | gfc_symtree *st; | |
672 | ||
673 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
674 | ||
675 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
676 | { | |
677 | st = NULL; | |
678 | s = NULL; | |
679 | ||
680 | if (gsym) | |
681 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
682 | ||
683 | if (!s) | |
684 | { | |
685 | if (!gsym) | |
686 | { | |
687 | gsym = gfc_get_gsymbol (sym->module); | |
688 | gsym->type = GSYM_MODULE; | |
689 | gsym->ns = gfc_get_namespace (NULL, 0); | |
690 | } | |
691 | ||
692 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
693 | st->n.sym = sym; | |
694 | sym->refs++; | |
695 | } | |
696 | else if (sym->attr.flavor == FL_DERIVED) | |
697 | { | |
c2958b6b | 698 | if (s && s->attr.flavor == FL_PROCEDURE) |
699 | { | |
700 | gfc_interface *intr; | |
701 | gcc_assert (s->attr.generic); | |
702 | for (intr = s->generic; intr; intr = intr->next) | |
703 | if (intr->sym->attr.flavor == FL_DERIVED) | |
704 | { | |
705 | s = intr->sym; | |
706 | break; | |
707 | } | |
708 | } | |
709 | ||
9f5a9ac5 | 710 | if (!s->backend_decl) |
711 | s->backend_decl = gfc_get_derived_type (s); | |
712 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
713 | return true; | |
714 | } | |
715 | else if (s->backend_decl) | |
716 | { | |
85ec2f13 | 717 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 718 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
719 | true); | |
720 | else if (sym->ts.type == BT_CHARACTER) | |
721 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
722 | sym->backend_decl = s->backend_decl; | |
723 | return true; | |
724 | } | |
725 | } | |
726 | return false; | |
727 | } | |
728 | ||
729 | ||
4ee9c684 | 730 | /* Create an array index type variable with function scope. */ |
731 | ||
732 | static tree | |
733 | create_index_var (const char * pfx, int nest) | |
734 | { | |
735 | tree decl; | |
736 | ||
737 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
738 | if (nest) | |
739 | gfc_add_decl_to_parent_function (decl); | |
740 | else | |
741 | gfc_add_decl_to_function (decl); | |
742 | return decl; | |
743 | } | |
744 | ||
745 | ||
746 | /* Create variables to hold all the non-constant bits of info for a | |
747 | descriptorless array. Remember these in the lang-specific part of the | |
748 | type. */ | |
749 | ||
750 | static void | |
751 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
752 | { | |
753 | tree type; | |
754 | int dim; | |
755 | int nest; | |
7b82374f | 756 | gfc_namespace* procns; |
4ee9c684 | 757 | |
758 | type = TREE_TYPE (decl); | |
759 | ||
760 | /* We just use the descriptor, if there is one. */ | |
761 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
762 | return; | |
763 | ||
22d678e8 | 764 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 765 | procns = gfc_find_proc_namespace (sym->ns); |
766 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 767 | && !sym->attr.contained; |
768 | ||
a961ca30 | 769 | if (sym->attr.codimension && gfc_option.coarray == GFC_FCOARRAY_LIB |
7dce33fe | 770 | && sym->as->type != AS_ASSUMED_SHAPE |
a961ca30 | 771 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
772 | { | |
773 | tree token; | |
774 | ||
d881175c | 775 | token = gfc_create_var_np (build_qualified_type (pvoid_type_node, |
776 | TYPE_QUAL_RESTRICT), | |
777 | "caf_token"); | |
a961ca30 | 778 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
779 | DECL_ARTIFICIAL (token) = 1; | |
780 | TREE_STATIC (token) = 1; | |
781 | gfc_add_decl_to_function (token); | |
782 | } | |
783 | ||
4ee9c684 | 784 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
785 | { | |
786 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 787 | { |
788 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
789 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
790 | } | |
9ca15c9b | 791 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 792 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
793 | && (sym->as->type != AS_ASSUMED_SIZE | |
794 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 795 | { |
796 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
797 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
798 | } | |
4ee9c684 | 799 | |
800 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 801 | { |
802 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
803 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
804 | } | |
4ee9c684 | 805 | } |
076094b7 | 806 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
807 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
808 | { | |
809 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
810 | { | |
811 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
812 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
813 | } | |
814 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
815 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
816 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
817 | { | |
818 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
819 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
820 | } | |
821 | } | |
4ee9c684 | 822 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
823 | { | |
824 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
825 | "offset"); | |
86254bbf | 826 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
827 | ||
4ee9c684 | 828 | if (nest) |
829 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
830 | else | |
831 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
832 | } | |
d4163395 | 833 | |
834 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
835 | && sym->as->type != AS_ASSUMED_SIZE) | |
86254bbf | 836 | { |
837 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
838 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
839 | } | |
d4163395 | 840 | |
841 | if (POINTER_TYPE_P (type)) | |
842 | { | |
843 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
844 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
845 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
846 | type = TREE_TYPE (type); | |
847 | } | |
848 | ||
849 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
850 | { | |
851 | tree size, range; | |
852 | ||
fd779e1d | 853 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
854 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 855 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
856 | size); | |
857 | TYPE_DOMAIN (type) = range; | |
858 | layout_type (type); | |
859 | } | |
6cf159a6 | 860 | |
6cf159a6 | 861 | if (TYPE_NAME (type) != NULL_TREE |
862 | && GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1) != NULL_TREE | |
863 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1)) == VAR_DECL) | |
864 | { | |
865 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
866 | ||
867 | for (dim = 0; dim < sym->as->rank - 1; dim++) | |
868 | { | |
869 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
870 | gtype = TREE_TYPE (gtype); | |
871 | } | |
872 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
873 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
874 | TYPE_NAME (type) = NULL_TREE; | |
875 | } | |
876 | ||
877 | if (TYPE_NAME (type) == NULL_TREE) | |
878 | { | |
879 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
880 | ||
881 | for (dim = sym->as->rank - 1; dim >= 0; dim--) | |
882 | { | |
7130ec9d | 883 | tree lbound, ubound; |
884 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
885 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
886 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 887 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 888 | /* Ensure the bound variables aren't optimized out at -O0. |
889 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 890 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
891 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
892 | end up in debug info. */ | |
7130ec9d | 893 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
894 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
895 | { | |
896 | if (DECL_NAME (lbound) | |
897 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
898 | "lbound") != 0) | |
84bfaaeb | 899 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 900 | DECL_IGNORED_P (lbound) = 0; |
901 | } | |
902 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
903 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
904 | { | |
905 | if (DECL_NAME (ubound) | |
906 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
907 | "ubound") != 0) | |
84bfaaeb | 908 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 909 | DECL_IGNORED_P (ubound) = 0; |
910 | } | |
6cf159a6 | 911 | } |
e60a6f7b | 912 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
913 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 914 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
915 | } | |
4ee9c684 | 916 | } |
917 | ||
918 | ||
919 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 920 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 921 | initialization, and construct full type information. */ |
922 | ||
923 | static tree | |
924 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
925 | { | |
926 | tree decl; | |
927 | tree type; | |
928 | gfc_array_spec *as; | |
929 | char *name; | |
3d8dea5a | 930 | gfc_packed packed; |
4ee9c684 | 931 | int n; |
932 | bool known_size; | |
933 | ||
f00f6dd6 | 934 | if (sym->attr.pointer || sym->attr.allocatable |
935 | || (sym->as && sym->as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 936 | return dummy; |
937 | ||
938 | /* Add to list of variables if not a fake result variable. */ | |
939 | if (sym->attr.result || sym->attr.dummy) | |
940 | gfc_defer_symbol_init (sym); | |
941 | ||
942 | type = TREE_TYPE (dummy); | |
22d678e8 | 943 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
4ee9c684 | 944 | && POINTER_TYPE_P (type)); |
945 | ||
f888a3fb | 946 | /* Do we know the element size? */ |
4ee9c684 | 947 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 948 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 949 | |
4ee9c684 | 950 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (type))) |
951 | { | |
952 | /* For descriptorless arrays with known element size the actual | |
953 | argument is sufficient. */ | |
22d678e8 | 954 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
4ee9c684 | 955 | gfc_build_qualified_array (dummy, sym); |
956 | return dummy; | |
957 | } | |
958 | ||
959 | type = TREE_TYPE (type); | |
960 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
961 | { | |
cb8e3560 | 962 | /* Create a descriptorless array pointer. */ |
4ee9c684 | 963 | as = sym->as; |
3d8dea5a | 964 | packed = PACKED_NO; |
3d235846 | 965 | |
966 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
967 | are not repacked. */ | |
968 | if (!gfc_option.flag_repack_arrays || sym->attr.target) | |
4ee9c684 | 969 | { |
970 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 971 | packed = PACKED_FULL; |
4ee9c684 | 972 | } |
973 | else | |
974 | { | |
975 | if (as->type == AS_EXPLICIT) | |
976 | { | |
3d8dea5a | 977 | packed = PACKED_FULL; |
4ee9c684 | 978 | for (n = 0; n < as->rank; n++) |
979 | { | |
980 | if (!(as->upper[n] | |
981 | && as->lower[n] | |
982 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
983 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
3d8dea5a | 984 | packed = PACKED_PARTIAL; |
4ee9c684 | 985 | } |
986 | } | |
987 | else | |
3d8dea5a | 988 | packed = PACKED_PARTIAL; |
4ee9c684 | 989 | } |
990 | ||
991 | type = gfc_typenode_for_spec (&sym->ts); | |
e1b3b79b | 992 | type = gfc_get_nodesc_array_type (type, sym->as, packed, |
993 | !sym->attr.target); | |
4ee9c684 | 994 | } |
995 | else | |
996 | { | |
997 | /* We now have an expression for the element size, so create a fully | |
998 | qualified type. Reset sym->backend decl or this will just return the | |
999 | old type. */ | |
d95efb59 | 1000 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1001 | sym->backend_decl = NULL_TREE; |
1002 | type = gfc_sym_type (sym); | |
3d8dea5a | 1003 | packed = PACKED_FULL; |
4ee9c684 | 1004 | } |
1005 | ||
1006 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1007 | decl = build_decl (input_location, |
1008 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1009 | |
1010 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1011 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1012 | TREE_PUBLIC (decl) = 0; |
1013 | TREE_STATIC (decl) = 0; | |
1014 | DECL_EXTERNAL (decl) = 0; | |
1015 | ||
1016 | /* We should never get deferred shape arrays here. We used to because of | |
1017 | frontend bugs. */ | |
22d678e8 | 1018 | gcc_assert (sym->as->type != AS_DEFERRED); |
4ee9c684 | 1019 | |
3d8dea5a | 1020 | if (packed == PACKED_PARTIAL) |
1021 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1022 | else if (packed == PACKED_FULL) | |
1023 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1024 | |
1025 | gfc_build_qualified_array (decl, sym); | |
1026 | ||
1027 | if (DECL_LANG_SPECIFIC (dummy)) | |
1028 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1029 | else | |
1030 | gfc_allocate_lang_decl (decl); | |
1031 | ||
1032 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1033 | ||
1034 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1035 | || sym->attr.contained) | |
1036 | gfc_add_decl_to_function (decl); | |
1037 | else | |
1038 | gfc_add_decl_to_parent_function (decl); | |
1039 | ||
1040 | return decl; | |
1041 | } | |
1042 | ||
9579733e | 1043 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1044 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1045 | pointing to the artificial variable for debug info purposes. */ | |
1046 | ||
1047 | static void | |
1048 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1049 | { | |
1050 | tree decl, dummy; | |
1051 | ||
1052 | if (! nonlocal_dummy_decl_pset) | |
1053 | nonlocal_dummy_decl_pset = pointer_set_create (); | |
1054 | ||
1055 | if (pointer_set_insert (nonlocal_dummy_decl_pset, sym->backend_decl)) | |
1056 | return; | |
1057 | ||
1058 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1059 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1060 | TREE_TYPE (sym->backend_decl)); |
1061 | DECL_ARTIFICIAL (decl) = 0; | |
1062 | TREE_USED (decl) = 1; | |
1063 | TREE_PUBLIC (decl) = 0; | |
1064 | TREE_STATIC (decl) = 0; | |
1065 | DECL_EXTERNAL (decl) = 0; | |
1066 | if (DECL_BY_REFERENCE (dummy)) | |
1067 | DECL_BY_REFERENCE (decl) = 1; | |
1068 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1069 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1070 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1071 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1072 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1073 | nonlocal_dummy_decls = decl; |
1074 | } | |
4ee9c684 | 1075 | |
1076 | /* Return a constant or a variable to use as a string length. Does not | |
1077 | add the decl to the current scope. */ | |
1078 | ||
1079 | static tree | |
1080 | gfc_create_string_length (gfc_symbol * sym) | |
1081 | { | |
eeebe20b | 1082 | gcc_assert (sym->ts.u.cl); |
1083 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1084 | |
eeebe20b | 1085 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1086 | { |
a4abf8a0 | 1087 | tree length; |
774bbd60 | 1088 | const char *name; |
4ee9c684 | 1089 | |
873f242d | 1090 | /* The string length variable shall be in static memory if it is either |
1091 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1092 | relevant is "len=:" - otherwise, it is either a constant length or | |
1093 | it is an automatic variable. */ | |
be125be0 | 1094 | bool static_length = sym->attr.save |
1095 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
873f242d | 1096 | || (gfc_option.flag_max_stack_var_size == 0 |
1097 | && sym->ts.deferred && !sym->attr.dummy | |
1098 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1099 | |
1100 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1101 | variables as some systems do not support the "." in the assembler name. | |
1102 | For nonstatic variables, the "." does not appear in assembler. */ | |
1103 | if (static_length) | |
1104 | { | |
1105 | if (sym->module) | |
1106 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1107 | sym->name); | |
1108 | else | |
1109 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1110 | } | |
1111 | else if (sym->module) | |
774bbd60 | 1112 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1113 | else | |
1114 | name = gfc_get_string (".%s", sym->name); | |
1115 | ||
e60a6f7b | 1116 | length = build_decl (input_location, |
1117 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1118 | gfc_charlen_type_node); |
4ee9c684 | 1119 | DECL_ARTIFICIAL (length) = 1; |
1120 | TREE_USED (length) = 1; | |
d4163395 | 1121 | if (sym->ns->proc_name->tlink != NULL) |
1122 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1123 | |
eeebe20b | 1124 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1125 | |
be125be0 | 1126 | if (static_length) |
774bbd60 | 1127 | TREE_STATIC (length) = 1; |
1128 | ||
1129 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1130 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1131 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1132 | } |
1133 | ||
eeebe20b | 1134 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1135 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1136 | } |
1137 | ||
c8f1568f | 1138 | /* If a variable is assigned a label, we add another two auxiliary |
1139 | variables. */ | |
1140 | ||
1141 | static void | |
1142 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1143 | { | |
1144 | tree addr; | |
1145 | tree length; | |
1146 | tree decl; | |
1147 | ||
1148 | gcc_assert (sym->backend_decl); | |
1149 | ||
1150 | decl = sym->backend_decl; | |
1151 | gfc_allocate_lang_decl (decl); | |
1152 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1153 | length = build_decl (input_location, |
1154 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1155 | gfc_charlen_type_node); |
e60a6f7b | 1156 | addr = build_decl (input_location, |
1157 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1158 | pvoid_type_node); |
1159 | gfc_finish_var_decl (length, sym); | |
1160 | gfc_finish_var_decl (addr, sym); | |
1161 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1162 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1163 | target label's address. Otherwise, value is the length of a format string | |
1164 | and ASSIGN_ADDR is its address. */ | |
1165 | if (TREE_STATIC (length)) | |
35bf1214 | 1166 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1167 | else |
1168 | gfc_defer_symbol_init (sym); | |
1169 | ||
1170 | GFC_DECL_STRING_LEN (decl) = length; | |
1171 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1172 | } | |
4ee9c684 | 1173 | |
36b0a1b0 | 1174 | |
1175 | static tree | |
1176 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1177 | { | |
1178 | unsigned id; | |
1179 | tree attr; | |
1180 | ||
1181 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1182 | if (sym_attr.ext_attr & (1 << id)) | |
1183 | { | |
1184 | attr = build_tree_list ( | |
1185 | get_identifier (ext_attr_list[id].middle_end_name), | |
1186 | NULL_TREE); | |
1187 | list = chainon (list, attr); | |
1188 | } | |
1189 | ||
1190 | return list; | |
1191 | } | |
1192 | ||
1193 | ||
802532b9 | 1194 | static void build_function_decl (gfc_symbol * sym, bool global); |
1195 | ||
1196 | ||
4ee9c684 | 1197 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1198 | exist. */ | |
1199 | ||
1200 | tree | |
1201 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1202 | { | |
1203 | tree decl; | |
1204 | tree length = NULL_TREE; | |
36b0a1b0 | 1205 | tree attributes; |
4ee9c684 | 1206 | int byref; |
cd2c99b8 | 1207 | bool intrinsic_array_parameter = false; |
4ee9c684 | 1208 | |
0b5dc8b5 | 1209 | gcc_assert (sym->attr.referenced |
9e45357a | 1210 | || sym->attr.flavor == FL_PROCEDURE |
1211 | || sym->attr.use_assoc | |
1212 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY | |
1213 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1214 | && sym->backend_decl)); | |
4ee9c684 | 1215 | |
ff70e443 | 1216 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1217 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1218 | else | |
1219 | byref = 0; | |
1220 | ||
09c509ed | 1221 | /* Make sure that the vtab for the declared type is completed. */ |
1222 | if (sym->ts.type == BT_CLASS) | |
1223 | { | |
50b4b37b | 1224 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1225 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1226 | { |
1227 | gfc_find_derived_vtab (c->ts.u.derived); | |
1228 | gfc_get_derived_type (sym->ts.u.derived); | |
1229 | } | |
09c509ed | 1230 | } |
1231 | ||
617125a6 | 1232 | /* All deferred character length procedures need to retain the backend |
1233 | decl, which is a pointer to the character length in the caller's | |
1234 | namespace and to declare a local character length. */ | |
1235 | if (!byref && sym->attr.function | |
1236 | && sym->ts.type == BT_CHARACTER | |
1237 | && sym->ts.deferred | |
1238 | && sym->ts.u.cl->passed_length == NULL | |
1239 | && sym->ts.u.cl->backend_decl | |
1240 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1241 | { | |
1242 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1243 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1244 | length = gfc_create_string_length (sym); | |
1245 | } | |
1246 | ||
4ee9c684 | 1247 | if ((sym->attr.dummy && ! sym->attr.function) || (sym->attr.result && byref)) |
1248 | { | |
1249 | /* Return via extra parameter. */ | |
1250 | if (sym->attr.result && byref | |
1251 | && !sym->backend_decl) | |
1252 | { | |
1253 | sym->backend_decl = | |
1254 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1255 | /* For entry master function skip over the __entry |
1256 | argument. */ | |
1257 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1258 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1259 | } |
1260 | ||
1261 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1262 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1263 | |
1264 | /* Create a character length variable. */ | |
1265 | if (sym->ts.type == BT_CHARACTER) | |
1266 | { | |
617125a6 | 1267 | /* For a deferred dummy, make a new string length variable. */ |
1268 | if (sym->ts.deferred | |
1269 | && | |
1270 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1271 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1272 | ||
1273 | if (sym->ts.deferred && sym->attr.result | |
1274 | && sym->ts.u.cl->passed_length == NULL | |
1275 | && sym->ts.u.cl->backend_decl) | |
1276 | { | |
1277 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1278 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1279 | } | |
1280 | ||
eeebe20b | 1281 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1282 | length = gfc_create_string_length (sym); |
1283 | else | |
eeebe20b | 1284 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1285 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1286 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1287 | { |
d95efb59 | 1288 | /* Add the string length to the same context as the symbol. */ |
1289 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1290 | gfc_add_decl_to_function (length); | |
1291 | else | |
1292 | gfc_add_decl_to_parent_function (length); | |
1293 | ||
1294 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1295 | DECL_CONTEXT (length)); | |
1296 | ||
d4163395 | 1297 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1298 | } |
4ee9c684 | 1299 | } |
1300 | ||
1301 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1302 | if ((sym->attr.dimension || sym->attr.codimension) |
1303 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1304 | { |
d95efb59 | 1305 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1306 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1307 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1308 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1309 | sym->backend_decl = decl; | |
4ee9c684 | 1310 | } |
1311 | ||
1312 | TREE_USED (sym->backend_decl) = 1; | |
c8f1568f | 1313 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1314 | { | |
1315 | gfc_add_assign_aux_vars (sym); | |
1316 | } | |
9579733e | 1317 | |
1318 | if (sym->attr.dimension | |
1319 | && DECL_LANG_SPECIFIC (sym->backend_decl) | |
1320 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1321 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1322 | gfc_nonlocal_dummy_array_decl (sym); | |
1323 | ||
fd23cc08 | 1324 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1325 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1326 | ||
1327 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1328 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1329 | return sym->backend_decl; | |
4ee9c684 | 1330 | } |
1331 | ||
1332 | if (sym->backend_decl) | |
1333 | return sym->backend_decl; | |
1334 | ||
a25debd0 | 1335 | /* Special case for array-valued named constants from intrinsic |
1336 | procedures; those are inlined. */ | |
1337 | if (sym->attr.use_assoc && sym->from_intmod | |
1338 | && sym->attr.flavor == FL_PARAMETER) | |
1339 | intrinsic_array_parameter = true; | |
1340 | ||
7ea64434 | 1341 | /* If use associated and whole file compilation, use the module |
094bca96 | 1342 | declaration. */ |
7ea64434 | 1343 | if (gfc_option.flag_whole_file |
a25debd0 | 1344 | && (sym->attr.flavor == FL_VARIABLE |
1345 | || sym->attr.flavor == FL_PARAMETER) | |
9f5a9ac5 | 1346 | && sym->attr.use_assoc |
1347 | && !intrinsic_array_parameter | |
1348 | && sym->module | |
1349 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1350 | { |
1351 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1352 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1353 | return sym->backend_decl; | |
1354 | } | |
7ea64434 | 1355 | |
4ee9c684 | 1356 | if (sym->attr.flavor == FL_PROCEDURE) |
1357 | { | |
802532b9 | 1358 | /* Catch function declarations. Only used for actual parameters, |
1359 | procedure pointers and procptr initialization targets. */ | |
1360 | if (sym->attr.external || sym->attr.use_assoc || sym->attr.intrinsic) | |
1361 | { | |
1362 | decl = gfc_get_extern_function_decl (sym); | |
1363 | gfc_set_decl_location (decl, &sym->declared_at); | |
1364 | } | |
1365 | else | |
1366 | { | |
1367 | if (!sym->backend_decl) | |
1368 | build_function_decl (sym, false); | |
1369 | decl = sym->backend_decl; | |
1370 | } | |
4ee9c684 | 1371 | return decl; |
1372 | } | |
1373 | ||
1374 | if (sym->attr.intrinsic) | |
1375 | internal_error ("intrinsic variable which isn't a procedure"); | |
1376 | ||
1377 | /* Create string length decl first so that they can be used in the | |
1378 | type declaration. */ | |
1379 | if (sym->ts.type == BT_CHARACTER) | |
1380 | length = gfc_create_string_length (sym); | |
1381 | ||
1382 | /* Create the decl for the variable. */ | |
e60a6f7b | 1383 | decl = build_decl (sym->declared_at.lb->location, |
1384 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1385 | |
1236e28b | 1386 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1387 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1388 | decl_attributes (&decl, attributes, 0); | |
1389 | ||
f888a3fb | 1390 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1391 | This is done here rather than in gfc_finish_var_decl because it |
1392 | is different for string length variables. */ | |
4f0fae8e | 1393 | if (sym->module) |
df4d540f | 1394 | { |
1236e28b | 1395 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1396 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1397 | DECL_IGNORED_P (decl) = 1; |
1398 | } | |
4ee9c684 | 1399 | |
bc5663df | 1400 | if (sym->attr.select_type_temporary) |
1401 | { | |
1402 | DECL_ARTIFICIAL (decl) = 1; | |
1403 | DECL_IGNORED_P (decl) = 1; | |
1404 | } | |
1405 | ||
7a777e43 | 1406 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1407 | { |
1408 | /* Create variables to hold the non-constant bits of array info. */ | |
1409 | gfc_build_qualified_array (decl, sym); | |
1410 | ||
b3c3927c | 1411 | if (sym->attr.contiguous |
1412 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1413 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1414 | } | |
1415 | ||
0a96a7cc | 1416 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1417 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1418 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1419 | (CLASS_DATA (sym)->attr.dimension |
1420 | || CLASS_DATA (sym)->attr.allocatable)) | |
0a96a7cc | 1421 | || (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
1422 | /* This applies a derived type default initializer. */ | |
1423 | || (sym->ts.type == BT_DERIVED | |
1424 | && sym->attr.save == SAVE_NONE | |
1425 | && !sym->attr.data | |
1426 | && !sym->attr.allocatable | |
1427 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1428 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1429 | gfc_defer_symbol_init (sym); |
2294b616 | 1430 | |
4ee9c684 | 1431 | gfc_finish_var_decl (decl, sym); |
1432 | ||
bda1f152 | 1433 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1434 | { |
4ee9c684 | 1435 | /* Character variables need special handling. */ |
1436 | gfc_allocate_lang_decl (decl); | |
1437 | ||
bda1f152 | 1438 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1439 | { |
4ee9c684 | 1440 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1441 | gcc_assert (!sym->value); |
4ee9c684 | 1442 | } |
4ee9c684 | 1443 | } |
1033248c | 1444 | else if (sym->attr.subref_array_pointer) |
1445 | { | |
1446 | /* We need the span for these beasts. */ | |
1447 | gfc_allocate_lang_decl (decl); | |
1448 | } | |
1449 | ||
1450 | if (sym->attr.subref_array_pointer) | |
1451 | { | |
1452 | tree span; | |
1453 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1454 | span = build_decl (input_location, |
1455 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1456 | gfc_array_index_type); |
1457 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1458 | TREE_STATIC (span) = TREE_STATIC (decl); |
1459 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1460 | |
1461 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1462 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1463 | } |
1464 | ||
fd23cc08 | 1465 | if (sym->ts.type == BT_CLASS) |
1466 | GFC_DECL_CLASS(decl) = 1; | |
1467 | ||
4ee9c684 | 1468 | sym->backend_decl = decl; |
1469 | ||
c8f1568f | 1470 | if (sym->attr.assign) |
21ebda4d | 1471 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1472 | |
cd2c99b8 | 1473 | if (intrinsic_array_parameter) |
1474 | { | |
1475 | TREE_STATIC (decl) = 1; | |
1476 | DECL_EXTERNAL (decl) = 0; | |
1477 | } | |
1478 | ||
1479 | if (TREE_STATIC (decl) | |
1480 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1481 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
1482 | || gfc_option.flag_max_stack_var_size == 0 | |
a961ca30 | 1483 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
0d3bb1de | 1484 | && (gfc_option.coarray != GFC_FCOARRAY_LIB |
1485 | || !sym->attr.codimension || sym->attr.allocatable)) | |
a545a8f8 | 1486 | { |
1487 | /* Add static initializer. For procedures, it is only needed if | |
1488 | SAVE is specified otherwise they need to be reinitialized | |
1489 | every time the procedure is entered. The TREE_STATIC is | |
1490 | in this case due to -fmax-stack-var-size=. */ | |
bda1f152 | 1491 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
802532b9 | 1492 | TREE_TYPE (decl), |
0d3bb1de | 1493 | sym->attr.dimension |
1494 | || (sym->attr.codimension | |
1495 | && sym->attr.allocatable), | |
802532b9 | 1496 | sym->attr.pointer |
1497 | || sym->attr.allocatable, | |
1498 | sym->attr.proc_pointer); | |
bda1f152 | 1499 | } |
1500 | ||
9579733e | 1501 | if (!TREE_STATIC (decl) |
1502 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1503 | && !sym->attr.pointer | |
1504 | && !sym->attr.allocatable | |
bc5663df | 1505 | && !sym->attr.proc_pointer |
1506 | && !sym->attr.select_type_temporary) | |
9579733e | 1507 | DECL_BY_REFERENCE (decl) = 1; |
1508 | ||
ebad7c3e | 1509 | if (sym->attr.vtab |
1510 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1511 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1512 | |
4ee9c684 | 1513 | return decl; |
1514 | } | |
1515 | ||
1516 | ||
dbe60343 | 1517 | /* Substitute a temporary variable in place of the real one. */ |
1518 | ||
1519 | void | |
1520 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1521 | { | |
1522 | save->attr = sym->attr; | |
1523 | save->decl = sym->backend_decl; | |
1524 | ||
1525 | gfc_clear_attr (&sym->attr); | |
1526 | sym->attr.referenced = 1; | |
1527 | sym->attr.flavor = FL_VARIABLE; | |
1528 | ||
1529 | sym->backend_decl = decl; | |
1530 | } | |
1531 | ||
1532 | ||
1533 | /* Restore the original variable. */ | |
1534 | ||
1535 | void | |
1536 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1537 | { | |
1538 | sym->attr = save->attr; | |
1539 | sym->backend_decl = save->decl; | |
1540 | } | |
1541 | ||
1542 | ||
cad0ddcf | 1543 | /* Declare a procedure pointer. */ |
1544 | ||
1545 | static tree | |
1546 | get_proc_pointer_decl (gfc_symbol *sym) | |
1547 | { | |
1548 | tree decl; | |
36b0a1b0 | 1549 | tree attributes; |
cad0ddcf | 1550 | |
1551 | decl = sym->backend_decl; | |
1552 | if (decl) | |
1553 | return decl; | |
1554 | ||
e60a6f7b | 1555 | decl = build_decl (input_location, |
1556 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1557 | build_pointer_type (gfc_get_function_type (sym))); |
1558 | ||
ea6f8461 | 1559 | if (sym->module) |
1560 | { | |
1561 | /* Apply name mangling. */ | |
1562 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1563 | if (sym->attr.use_assoc) | |
1564 | DECL_IGNORED_P (decl) = 1; | |
1565 | } | |
a90fe829 | 1566 | |
e72f979a | 1567 | if ((sym->ns->proc_name |
1568 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1569 | || sym->attr.contained) |
1570 | gfc_add_decl_to_function (decl); | |
cf269acc | 1571 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1572 | gfc_add_decl_to_parent_function (decl); |
1573 | ||
1574 | sym->backend_decl = decl; | |
1575 | ||
cf269acc | 1576 | /* If a variable is USE associated, it's always external. */ |
1577 | if (sym->attr.use_assoc) | |
1578 | { | |
1579 | DECL_EXTERNAL (decl) = 1; | |
1580 | TREE_PUBLIC (decl) = 1; | |
1581 | } | |
1582 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1583 | { | |
1584 | /* This is the declaration of a module variable. */ | |
1585 | TREE_PUBLIC (decl) = 1; | |
1586 | TREE_STATIC (decl) = 1; | |
1587 | } | |
1588 | ||
cad0ddcf | 1589 | if (!sym->attr.use_assoc |
1590 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1591 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1592 | TREE_STATIC (decl) = 1; | |
1593 | ||
1594 | if (TREE_STATIC (decl) && sym->value) | |
1595 | { | |
1596 | /* Add static initializer. */ | |
1597 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1598 | TREE_TYPE (decl), |
1599 | sym->attr.dimension, | |
1600 | false, true); | |
cad0ddcf | 1601 | } |
1602 | ||
8fb1768c | 1603 | /* Handle threadprivate procedure pointers. */ |
1604 | if (sym->attr.threadprivate | |
1605 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
1606 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
1607 | ||
36b0a1b0 | 1608 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1609 | decl_attributes (&decl, attributes, 0); | |
1610 | ||
cad0ddcf | 1611 | return decl; |
1612 | } | |
1613 | ||
1614 | ||
4ee9c684 | 1615 | /* Get a basic decl for an external function. */ |
1616 | ||
1617 | tree | |
1618 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1619 | { | |
1620 | tree type; | |
1621 | tree fndecl; | |
36b0a1b0 | 1622 | tree attributes; |
4ee9c684 | 1623 | gfc_expr e; |
1624 | gfc_intrinsic_sym *isym; | |
1625 | gfc_expr argexpr; | |
17000b91 | 1626 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1627 | tree name; |
1628 | tree mangled_name; | |
83aeedb9 | 1629 | gfc_gsymbol *gsym; |
4ee9c684 | 1630 | |
1631 | if (sym->backend_decl) | |
1632 | return sym->backend_decl; | |
1633 | ||
1b716045 | 1634 | /* We should never be creating external decls for alternate entry points. |
1635 | The procedure may be an alternate entry point, but we don't want/need | |
1636 | to know that. */ | |
22d678e8 | 1637 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1638 | |
cad0ddcf | 1639 | if (sym->attr.proc_pointer) |
1640 | return get_proc_pointer_decl (sym); | |
1641 | ||
83aeedb9 | 1642 | /* See if this is an external procedure from the same file. If so, |
1643 | return the backend_decl. */ | |
1644 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name); | |
1645 | ||
1646 | if (gfc_option.flag_whole_file | |
40c74b02 | 1647 | && (!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
83aeedb9 | 1648 | && !sym->backend_decl |
1649 | && gsym && gsym->ns | |
1650 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
d896f9b3 | 1651 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) |
83aeedb9 | 1652 | { |
d896f9b3 | 1653 | if (!gsym->ns->proc_name->backend_decl) |
1654 | { | |
1655 | /* By construction, the external function cannot be | |
1656 | a contained procedure. */ | |
1657 | locus old_loc; | |
d896f9b3 | 1658 | |
4671339c | 1659 | gfc_save_backend_locus (&old_loc); |
9078126c | 1660 | push_cfun (NULL); |
d896f9b3 | 1661 | |
1662 | gfc_create_function_decl (gsym->ns, true); | |
1663 | ||
1664 | pop_cfun (); | |
4671339c | 1665 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1666 | } |
1667 | ||
83aeedb9 | 1668 | /* If the namespace has entries, the proc_name is the |
1669 | entry master. Find the entry and use its backend_decl. | |
1670 | otherwise, use the proc_name backend_decl. */ | |
1671 | if (gsym->ns->entries) | |
1672 | { | |
1673 | gfc_entry_list *entry = gsym->ns->entries; | |
1674 | ||
1675 | for (; entry; entry = entry->next) | |
1676 | { | |
1677 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1678 | { | |
1679 | sym->backend_decl = entry->sym->backend_decl; | |
1680 | break; | |
1681 | } | |
1682 | } | |
1683 | } | |
1684 | else | |
40c74b02 | 1685 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1686 | |
1687 | if (sym->backend_decl) | |
40c74b02 | 1688 | { |
1689 | /* Avoid problems of double deallocation of the backend declaration | |
1690 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1691 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1692 | sym->attr.use_assoc = 0; | |
1693 | ||
1694 | return sym->backend_decl; | |
1695 | } | |
83aeedb9 | 1696 | } |
1697 | ||
7ea64434 | 1698 | /* See if this is a module procedure from the same file. If so, |
1699 | return the backend_decl. */ | |
1700 | if (sym->module) | |
1701 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1702 | ||
1703 | if (gfc_option.flag_whole_file | |
1704 | && gsym && gsym->ns | |
1705 | && gsym->type == GSYM_MODULE) | |
1706 | { | |
1707 | gfc_symbol *s; | |
1708 | ||
1709 | s = NULL; | |
1710 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1711 | if (s && s->backend_decl) | |
1712 | { | |
85ec2f13 | 1713 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1714 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1715 | true); | |
1716 | else if (sym->ts.type == BT_CHARACTER) | |
1717 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1718 | sym->backend_decl = s->backend_decl; |
1719 | return sym->backend_decl; | |
1720 | } | |
1721 | } | |
1722 | ||
4ee9c684 | 1723 | if (sym->attr.intrinsic) |
1724 | { | |
1725 | /* Call the resolution function to get the actual name. This is | |
1726 | a nasty hack which relies on the resolution functions only looking | |
1727 | at the first argument. We pass NULL for the second argument | |
1728 | otherwise things like AINT get confused. */ | |
1729 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1730 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1731 | |
1732 | memset (&e, 0, sizeof (e)); | |
1733 | e.expr_type = EXPR_FUNCTION; | |
1734 | ||
1735 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1736 | gcc_assert (isym->formal); |
4ee9c684 | 1737 | argexpr.ts = isym->formal->ts; |
1738 | ||
1739 | if (isym->formal->next == NULL) | |
1740 | isym->resolve.f1 (&e, &argexpr); | |
1741 | else | |
1742 | { | |
37e0271a | 1743 | if (isym->formal->next->next == NULL) |
1744 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1745 | else | |
1746 | { | |
7fe55cc9 | 1747 | if (isym->formal->next->next->next == NULL) |
1748 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1749 | else | |
1750 | { | |
1751 | /* All specific intrinsics take less than 5 arguments. */ | |
1752 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1753 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1754 | } | |
37e0271a | 1755 | } |
4ee9c684 | 1756 | } |
bdaed7d2 | 1757 | |
1758 | if (gfc_option.flag_f2c | |
1759 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) | |
1760 | || e.ts.type == BT_COMPLEX)) | |
1761 | { | |
1762 | /* Specific which needs a different implementation if f2c | |
1763 | calling conventions are used. */ | |
17000b91 | 1764 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1765 | } |
1766 | else | |
17000b91 | 1767 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1768 | |
4ee9c684 | 1769 | name = get_identifier (s); |
1770 | mangled_name = name; | |
1771 | } | |
1772 | else | |
1773 | { | |
1774 | name = gfc_sym_identifier (sym); | |
1775 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1776 | } | |
1777 | ||
1778 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1779 | fndecl = build_decl (input_location, |
1780 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1781 | |
e27454ee | 1782 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1783 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1784 | the opposite of declaring a function as static in C). */ |
e27454ee | 1785 | DECL_EXTERNAL (fndecl) = 1; |
1786 | TREE_PUBLIC (fndecl) = 1; | |
1787 | ||
1236e28b | 1788 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1789 | decl_attributes (&fndecl, attributes, 0); | |
1790 | ||
1791 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 1792 | |
1793 | /* Set the context of this decl. */ | |
1794 | if (0 && sym->ns && sym->ns->proc_name) | |
1795 | { | |
1796 | /* TODO: Add external decls to the appropriate scope. */ | |
1797 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
1798 | } | |
1799 | else | |
1800 | { | |
f888a3fb | 1801 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 1802 | DECL_CONTEXT (fndecl) = NULL_TREE; |
1803 | } | |
1804 | ||
4ee9c684 | 1805 | /* Set attributes for PURE functions. A call to PURE function in the |
1806 | Fortran 95 sense is both pure and without side effects in the C | |
1807 | sense. */ | |
bead0399 | 1808 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 1809 | { |
4d4b9f0e | 1810 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1811 | DECL_PURE_P (fndecl) = 1; |
be393645 | 1812 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
1813 | parameters and don't use alternate returns (is this | |
1814 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 1815 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 1816 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 1817 | } |
1818 | ||
6e27d773 | 1819 | /* Mark non-returning functions. */ |
1820 | if (sym->attr.noreturn) | |
1821 | TREE_THIS_VOLATILE(fndecl) = 1; | |
1822 | ||
4ee9c684 | 1823 | sym->backend_decl = fndecl; |
1824 | ||
1825 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
1826 | pushdecl_top_level (fndecl); | |
1827 | ||
1828 | return fndecl; | |
1829 | } | |
1830 | ||
1831 | ||
1832 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 1833 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
1834 | a master function with alternate entry points. */ | |
4ee9c684 | 1835 | |
1b716045 | 1836 | static void |
d896f9b3 | 1837 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 1838 | { |
36b0a1b0 | 1839 | tree fndecl, type, attributes; |
4ee9c684 | 1840 | symbol_attribute attr; |
1b716045 | 1841 | tree result_decl; |
4ee9c684 | 1842 | gfc_formal_arglist *f; |
1843 | ||
22d678e8 | 1844 | gcc_assert (!sym->attr.external); |
4ee9c684 | 1845 | |
802532b9 | 1846 | if (sym->backend_decl) |
1847 | return; | |
1848 | ||
b31f705b | 1849 | /* Set the line and filename. sym->declared_at seems to point to the |
1850 | last statement for subroutines, but it'll do for now. */ | |
1851 | gfc_set_backend_locus (&sym->declared_at); | |
1852 | ||
4ee9c684 | 1853 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 1854 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 1855 | || DECL_FILE_SCOPE_P (current_function_decl) |
1856 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
1857 | == NAMESPACE_DECL)); | |
4ee9c684 | 1858 | |
1859 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1860 | fndecl = build_decl (input_location, |
1861 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 1862 | |
1236e28b | 1863 | attr = sym->attr; |
1864 | ||
e27454ee | 1865 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1866 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1867 | the opposite of declaring a function as static in C). */ |
e27454ee | 1868 | DECL_EXTERNAL (fndecl) = 0; |
1869 | ||
7d6b5754 | 1870 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
1871 | && (sym->ns->default_access == ACCESS_PRIVATE | |
1872 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
1873 | && gfc_option.flag_module_private))) | |
1874 | sym->attr.access = ACCESS_PRIVATE; | |
1875 | ||
e27454ee | 1876 | if (!current_function_decl |
c5cb468c | 1877 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 1878 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
1879 | || sym->attr.public_used)) | |
e27454ee | 1880 | TREE_PUBLIC (fndecl) = 1; |
1881 | ||
9e45357a | 1882 | if (sym->attr.referenced || sym->attr.entry_master) |
1883 | TREE_USED (fndecl) = 1; | |
1884 | ||
1236e28b | 1885 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
1886 | decl_attributes (&fndecl, attributes, 0); | |
1887 | ||
4ee9c684 | 1888 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 1889 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 1890 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 1891 | result_decl = NULL_TREE; |
1892 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
1893 | if (attr.function) | |
1894 | { | |
1895 | if (gfc_return_by_reference (sym)) | |
1896 | type = void_type_node; | |
1897 | else | |
1898 | { | |
1899 | if (sym->result != sym) | |
1900 | result_decl = gfc_sym_identifier (sym->result); | |
1901 | ||
1902 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
1903 | } | |
1904 | } | |
1905 | else | |
1906 | { | |
1907 | /* Look for alternate return placeholders. */ | |
1908 | int has_alternate_returns = 0; | |
6777213b | 1909 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 1910 | { |
1911 | if (f->sym == NULL) | |
1912 | { | |
1913 | has_alternate_returns = 1; | |
1914 | break; | |
1915 | } | |
1916 | } | |
1917 | ||
1918 | if (has_alternate_returns) | |
1919 | type = integer_type_node; | |
1920 | else | |
1921 | type = void_type_node; | |
1922 | } | |
1923 | ||
e60a6f7b | 1924 | result_decl = build_decl (input_location, |
1925 | RESULT_DECL, result_decl, type); | |
540edea7 | 1926 | DECL_ARTIFICIAL (result_decl) = 1; |
1927 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 1928 | DECL_CONTEXT (result_decl) = fndecl; |
1929 | DECL_RESULT (fndecl) = result_decl; | |
1930 | ||
1931 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 1932 | layout_decl (result_decl, 0); */ |
4ee9c684 | 1933 | |
4ee9c684 | 1934 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 1935 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 1936 | |
f888a3fb | 1937 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 1938 | Fortran 95 sense is both pure and without side effects in the C |
1939 | sense. */ | |
bead0399 | 1940 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 1941 | { |
be393645 | 1942 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 1943 | including an alternate return. In that case it can also be |
231e961a | 1944 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 1945 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1946 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 1947 | TREE_SIDE_EFFECTS (fndecl) = 0; |
1948 | } | |
1949 | ||
36b0a1b0 | 1950 | |
4ee9c684 | 1951 | /* Layout the function declaration and put it in the binding level |
1952 | of the current function. */ | |
d896f9b3 | 1953 | |
4c197fd0 | 1954 | if (global) |
d896f9b3 | 1955 | pushdecl_top_level (fndecl); |
1956 | else | |
1957 | pushdecl (fndecl); | |
1b716045 | 1958 | |
16a40513 | 1959 | /* Perform name mangling if this is a top level or module procedure. */ |
1960 | if (current_function_decl == NULL_TREE) | |
1961 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
1962 | ||
1b716045 | 1963 | sym->backend_decl = fndecl; |
1964 | } | |
1965 | ||
1966 | ||
1967 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
1968 | ||
1969 | static void | |
1970 | create_function_arglist (gfc_symbol * sym) | |
1971 | { | |
1972 | tree fndecl; | |
1973 | gfc_formal_arglist *f; | |
d4163395 | 1974 | tree typelist, hidden_typelist; |
1975 | tree arglist, hidden_arglist; | |
1b716045 | 1976 | tree type; |
1977 | tree parm; | |
1978 | ||
1979 | fndecl = sym->backend_decl; | |
1980 | ||
e4b2c26c | 1981 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
1982 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 1983 | arglist = NULL_TREE; |
d4163395 | 1984 | hidden_arglist = NULL_TREE; |
e4b2c26c | 1985 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 1986 | |
1987 | if (sym->attr.entry_master) | |
1988 | { | |
1989 | type = TREE_VALUE (typelist); | |
e60a6f7b | 1990 | parm = build_decl (input_location, |
1991 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 1992 | |
1b716045 | 1993 | DECL_CONTEXT (parm) = fndecl; |
1994 | DECL_ARG_TYPE (parm) = type; | |
1995 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 1996 | gfc_finish_decl (parm); |
d95efb59 | 1997 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 1998 | |
1999 | arglist = chainon (arglist, parm); | |
2000 | typelist = TREE_CHAIN (typelist); | |
2001 | } | |
2002 | ||
e4b2c26c | 2003 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2004 | { |
d4163395 | 2005 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2006 | |
e4b2c26c | 2007 | if (sym->ts.type == BT_CHARACTER) |
2008 | { | |
e4b2c26c | 2009 | /* Length of character result. */ |
d4163395 | 2010 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2011 | |
e60a6f7b | 2012 | length = build_decl (input_location, |
2013 | PARM_DECL, | |
e4b2c26c | 2014 | get_identifier (".__result"), |
d4163395 | 2015 | len_type); |
eeebe20b | 2016 | if (!sym->ts.u.cl->length) |
e4b2c26c | 2017 | { |
eeebe20b | 2018 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2019 | TREE_USED (length) = 1; |
4ee9c684 | 2020 | } |
22d678e8 | 2021 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2022 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2023 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2024 | TREE_READONLY (length) = 1; |
b5b40b3f | 2025 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2026 | gfc_finish_decl (length); |
eeebe20b | 2027 | if (sym->ts.u.cl->backend_decl == NULL |
2028 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2029 | { |
2030 | gfc_symbol *arg; | |
2031 | tree backend_decl; | |
4ee9c684 | 2032 | |
eeebe20b | 2033 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2034 | { |
e60a6f7b | 2035 | tree len = build_decl (input_location, |
2036 | VAR_DECL, | |
d4163395 | 2037 | get_identifier ("..__result"), |
2038 | gfc_charlen_type_node); | |
2039 | DECL_ARTIFICIAL (len) = 1; | |
2040 | TREE_USED (len) = 1; | |
eeebe20b | 2041 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2042 | } |
4ee9c684 | 2043 | |
d4163395 | 2044 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2045 | arg = sym->result ? sym->result : sym; | |
2046 | backend_decl = arg->backend_decl; | |
2047 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2048 | type. */ | |
2049 | arg->backend_decl = NULL; | |
2050 | type = gfc_sym_type (arg); | |
2051 | arg->backend_decl = backend_decl; | |
2052 | type = build_reference_type (type); | |
2053 | } | |
2054 | } | |
4ee9c684 | 2055 | |
e60a6f7b | 2056 | parm = build_decl (input_location, |
2057 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2058 | |
d4163395 | 2059 | DECL_CONTEXT (parm) = fndecl; |
2060 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2061 | TREE_READONLY (parm) = 1; | |
2062 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2063 | gfc_finish_decl (parm); |
4ee9c684 | 2064 | |
d4163395 | 2065 | arglist = chainon (arglist, parm); |
2066 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2067 | |
d4163395 | 2068 | if (sym->ts.type == BT_CHARACTER) |
2069 | { | |
2070 | gfc_allocate_lang_decl (parm); | |
2071 | arglist = chainon (arglist, length); | |
e4b2c26c | 2072 | typelist = TREE_CHAIN (typelist); |
2073 | } | |
2074 | } | |
4ee9c684 | 2075 | |
d4163395 | 2076 | hidden_typelist = typelist; |
6777213b | 2077 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2078 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2079 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2080 | ||
6777213b | 2081 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2082 | { |
2083 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2084 | |
e4b2c26c | 2085 | /* Ignore alternate returns. */ |
2086 | if (f->sym == NULL) | |
2087 | continue; | |
4ee9c684 | 2088 | |
e4b2c26c | 2089 | type = TREE_VALUE (typelist); |
4ee9c684 | 2090 | |
296db1d1 | 2091 | if (f->sym->ts.type == BT_CHARACTER |
2092 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2093 | { |
2094 | tree len_type = TREE_VALUE (hidden_typelist); | |
2095 | tree length = NULL_TREE; | |
617125a6 | 2096 | if (!f->sym->ts.deferred) |
2097 | gcc_assert (len_type == gfc_charlen_type_node); | |
2098 | else | |
2099 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2100 | |
2101 | strcpy (&name[1], f->sym->name); | |
2102 | name[0] = '_'; | |
e60a6f7b | 2103 | length = build_decl (input_location, |
2104 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2105 | |
d4163395 | 2106 | hidden_arglist = chainon (hidden_arglist, length); |
2107 | DECL_CONTEXT (length) = fndecl; | |
2108 | DECL_ARTIFICIAL (length) = 1; | |
2109 | DECL_ARG_TYPE (length) = len_type; | |
2110 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2111 | gfc_finish_decl (length); |
4ee9c684 | 2112 | |
a4abf8a0 | 2113 | /* Remember the passed value. */ |
a90fe829 | 2114 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2115 | { |
2116 | /* This can happen if the same type is used for multiple | |
2117 | arguments. We need to copy cl as otherwise | |
2118 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2119 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2120 | } |
eeebe20b | 2121 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2122 | |
d4163395 | 2123 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2124 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2125 | { |
d4163395 | 2126 | TREE_USED (length) = 1; |
eeebe20b | 2127 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2128 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2129 | } |
2130 | ||
2131 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2132 | ||
eeebe20b | 2133 | if (f->sym->ts.u.cl->backend_decl == NULL |
2134 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2135 | { |
eeebe20b | 2136 | if (f->sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2137 | gfc_create_string_length (f->sym); |
2138 | ||
2139 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2140 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2141 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2142 | else | |
2143 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2144 | } |
4ee9c684 | 2145 | } |
2146 | ||
d4163395 | 2147 | /* For non-constant length array arguments, make sure they use |
2148 | a different type node from TYPE_ARG_TYPES type. */ | |
2149 | if (f->sym->attr.dimension | |
2150 | && type == TREE_VALUE (typelist) | |
2151 | && TREE_CODE (type) == POINTER_TYPE | |
2152 | && GFC_ARRAY_TYPE_P (type) | |
2153 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2154 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2155 | { | |
2156 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2157 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2158 | else | |
2159 | type = gfc_sym_type (f->sym); | |
2160 | } | |
2161 | ||
cad0ddcf | 2162 | if (f->sym->attr.proc_pointer) |
2163 | type = build_pointer_type (type); | |
2164 | ||
2364aa60 | 2165 | if (f->sym->attr.volatile_) |
2166 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2167 | ||
69b1505f | 2168 | /* Build the argument declaration. */ |
e60a6f7b | 2169 | parm = build_decl (input_location, |
2170 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2171 | |
2364aa60 | 2172 | if (f->sym->attr.volatile_) |
2173 | { | |
2174 | TREE_THIS_VOLATILE (parm) = 1; | |
2175 | TREE_SIDE_EFFECTS (parm) = 1; | |
2176 | } | |
2177 | ||
d4163395 | 2178 | /* Fill in arg stuff. */ |
2179 | DECL_CONTEXT (parm) = fndecl; | |
2180 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2181 | /* All implementation args are read-only. */ | |
2182 | TREE_READONLY (parm) = 1; | |
98923a84 | 2183 | if (POINTER_TYPE_P (type) |
2184 | && (!f->sym->attr.proc_pointer | |
2185 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2186 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2187 | |
b9c7fce7 | 2188 | gfc_finish_decl (parm); |
d4163395 | 2189 | |
2190 | f->sym->backend_decl = parm; | |
2191 | ||
7dce33fe | 2192 | /* Coarrays which are descriptorless or assumed-shape pass with |
2193 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
85c94a64 | 2194 | if (f->sym->attr.codimension |
2195 | && gfc_option.coarray == GFC_FCOARRAY_LIB | |
7dce33fe | 2196 | && !f->sym->attr.allocatable) |
85c94a64 | 2197 | { |
2198 | tree caf_type; | |
2199 | tree token; | |
2200 | tree offset; | |
2201 | ||
2202 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2203 | && !sym->attr.is_bind_c); | |
2204 | caf_type = TREE_TYPE (f->sym->backend_decl); | |
2205 | ||
85c94a64 | 2206 | token = build_decl (input_location, PARM_DECL, |
2207 | create_tmp_var_name ("caf_token"), | |
2208 | build_qualified_type (pvoid_type_node, | |
2209 | TYPE_QUAL_RESTRICT)); | |
7dce33fe | 2210 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2211 | { | |
2212 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2213 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2214 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2215 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2216 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2217 | } | |
2218 | else | |
2219 | { | |
2220 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2221 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2222 | } | |
a90fe829 | 2223 | |
85c94a64 | 2224 | DECL_CONTEXT (token) = fndecl; |
2225 | DECL_ARTIFICIAL (token) = 1; | |
2226 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2227 | TREE_READONLY (token) = 1; | |
2228 | hidden_arglist = chainon (hidden_arglist, token); | |
2229 | gfc_finish_decl (token); | |
2230 | ||
85c94a64 | 2231 | offset = build_decl (input_location, PARM_DECL, |
2232 | create_tmp_var_name ("caf_offset"), | |
2233 | gfc_array_index_type); | |
2234 | ||
7dce33fe | 2235 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2236 | { | |
2237 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2238 | == NULL_TREE); | |
2239 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2240 | } | |
2241 | else | |
2242 | { | |
2243 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2244 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2245 | } | |
85c94a64 | 2246 | DECL_CONTEXT (offset) = fndecl; |
2247 | DECL_ARTIFICIAL (offset) = 1; | |
2248 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2249 | TREE_READONLY (offset) = 1; | |
2250 | hidden_arglist = chainon (hidden_arglist, offset); | |
2251 | gfc_finish_decl (offset); | |
2252 | } | |
2253 | ||
d4163395 | 2254 | arglist = chainon (arglist, parm); |
e4b2c26c | 2255 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2256 | } |
e4b2c26c | 2257 | |
465e4a95 | 2258 | /* Add the hidden string length parameters, unless the procedure |
2259 | is bind(C). */ | |
2260 | if (!sym->attr.is_bind_c) | |
2261 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2262 | |
ebe27ea2 | 2263 | gcc_assert (hidden_typelist == NULL_TREE |
2264 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2265 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2266 | } |
e4b2c26c | 2267 | |
1b716045 | 2268 | /* Do the setup necessary before generating the body of a function. */ |
2269 | ||
2270 | static void | |
2271 | trans_function_start (gfc_symbol * sym) | |
2272 | { | |
2273 | tree fndecl; | |
2274 | ||
2275 | fndecl = sym->backend_decl; | |
2276 | ||
f888a3fb | 2277 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2278 | current_function_decl = fndecl; |
2279 | ||
f888a3fb | 2280 | /* Let the world know what we're about to do. */ |
1b716045 | 2281 | announce_function (fndecl); |
2282 | ||
16a40513 | 2283 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2284 | { |
f888a3fb | 2285 | /* Create RTL for function declaration. */ |
1b716045 | 2286 | rest_of_decl_compilation (fndecl, 1, 0); |
2287 | } | |
2288 | ||
f888a3fb | 2289 | /* Create RTL for function definition. */ |
1b716045 | 2290 | make_decl_rtl (fndecl); |
2291 | ||
00cf115c | 2292 | allocate_struct_function (fndecl, false); |
1b716045 | 2293 | |
f888a3fb | 2294 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2295 | pushlevel (); |
1b716045 | 2296 | } |
2297 | ||
2298 | /* Create thunks for alternate entry points. */ | |
2299 | ||
2300 | static void | |
d896f9b3 | 2301 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2302 | { |
2303 | gfc_formal_arglist *formal; | |
2304 | gfc_formal_arglist *thunk_formal; | |
2305 | gfc_entry_list *el; | |
2306 | gfc_symbol *thunk_sym; | |
2307 | stmtblock_t body; | |
2308 | tree thunk_fndecl; | |
1b716045 | 2309 | tree tmp; |
b31f705b | 2310 | locus old_loc; |
1b716045 | 2311 | |
2312 | /* This should always be a toplevel function. */ | |
22d678e8 | 2313 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2314 | |
4671339c | 2315 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2316 | for (el = ns->entries; el; el = el->next) |
2317 | { | |
f1f41a6c | 2318 | vec<tree, va_gc> *args = NULL; |
2319 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2320 | |
1b716045 | 2321 | thunk_sym = el->sym; |
a90fe829 | 2322 | |
d896f9b3 | 2323 | build_function_decl (thunk_sym, global); |
1b716045 | 2324 | create_function_arglist (thunk_sym); |
2325 | ||
2326 | trans_function_start (thunk_sym); | |
2327 | ||
2328 | thunk_fndecl = thunk_sym->backend_decl; | |
2329 | ||
e5004242 | 2330 | gfc_init_block (&body); |
1b716045 | 2331 | |
f888a3fb | 2332 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2333 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2334 | vec_safe_push (args, tmp); |
1b716045 | 2335 | |
c6871095 | 2336 | if (thunk_sym->attr.function) |
2337 | { | |
2338 | if (gfc_return_by_reference (ns->proc_name)) | |
2339 | { | |
2340 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2341 | vec_safe_push (args, ref); |
c6871095 | 2342 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2343 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2344 | } |
2345 | } | |
2346 | ||
6777213b | 2347 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2348 | formal = formal->next) | |
1b716045 | 2349 | { |
c6871095 | 2350 | /* Ignore alternate returns. */ |
2351 | if (formal->sym == NULL) | |
2352 | continue; | |
2353 | ||
1b716045 | 2354 | /* We don't have a clever way of identifying arguments, so resort to |
2355 | a brute-force search. */ | |
6777213b | 2356 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2357 | thunk_formal; |
2358 | thunk_formal = thunk_formal->next) | |
2359 | { | |
2360 | if (thunk_formal->sym == formal->sym) | |
2361 | break; | |
2362 | } | |
2363 | ||
2364 | if (thunk_formal) | |
2365 | { | |
2366 | /* Pass the argument. */ | |
d95efb59 | 2367 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2368 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2369 | if (formal->sym->ts.type == BT_CHARACTER) |
2370 | { | |
eeebe20b | 2371 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2372 | vec_safe_push (string_args, tmp); |
1b716045 | 2373 | } |
2374 | } | |
2375 | else | |
2376 | { | |
2377 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2378 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2379 | if (formal->sym->ts.type == BT_CHARACTER) |
2380 | { | |
7d3075f6 | 2381 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2382 | vec_safe_push (string_args, tmp); |
1b716045 | 2383 | } |
2384 | } | |
2385 | } | |
2386 | ||
2387 | /* Call the master function. */ | |
f1f41a6c | 2388 | vec_safe_splice (args, string_args); |
1b716045 | 2389 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2390 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2391 | if (ns->proc_name->attr.mixed_entry_master) |
2392 | { | |
2393 | tree union_decl, field; | |
2394 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2395 | ||
e60a6f7b | 2396 | union_decl = build_decl (input_location, |
2397 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2398 | TREE_TYPE (master_type)); |
2399 | DECL_ARTIFICIAL (union_decl) = 1; | |
2400 | DECL_EXTERNAL (union_decl) = 0; | |
2401 | TREE_PUBLIC (union_decl) = 0; | |
2402 | TREE_USED (union_decl) = 1; | |
2403 | layout_decl (union_decl, 0); | |
2404 | pushdecl (union_decl); | |
2405 | ||
2406 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2407 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2408 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2409 | gfc_add_expr_to_block (&body, tmp); |
2410 | ||
2411 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2412 | field; field = DECL_CHAIN (field)) |
c6871095 | 2413 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2414 | thunk_sym->result->name) == 0) | |
2415 | break; | |
2416 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2417 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2418 | TREE_TYPE (field), union_decl, field, | |
2419 | NULL_TREE); | |
a90fe829 | 2420 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2421 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2422 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2423 | tmp = build1_v (RETURN_EXPR, tmp); |
2424 | } | |
2425 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2426 | != void_type_node) | |
2427 | { | |
fd779e1d | 2428 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2429 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2430 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2431 | tmp = build1_v (RETURN_EXPR, tmp); |
2432 | } | |
1b716045 | 2433 | gfc_add_expr_to_block (&body, tmp); |
2434 | ||
2435 | /* Finish off this function and send it for code generation. */ | |
2436 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2437 | tmp = getdecls (); |
cde2be84 | 2438 | poplevel (1, 1); |
1b716045 | 2439 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2440 | DECL_SAVED_TREE (thunk_fndecl) |
2441 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2442 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2443 | |
2444 | /* Output the GENERIC tree. */ | |
2445 | dump_function (TDI_original, thunk_fndecl); | |
2446 | ||
2447 | /* Store the end of the function, so that we get good line number | |
2448 | info for the epilogue. */ | |
2449 | cfun->function_end_locus = input_location; | |
2450 | ||
2451 | /* We're leaving the context of this function, so zap cfun. | |
2452 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2453 | tree_rest_of_compilation. */ | |
87d4aa85 | 2454 | set_cfun (NULL); |
1b716045 | 2455 | |
2456 | current_function_decl = NULL_TREE; | |
2457 | ||
bb982f66 | 2458 | cgraph_finalize_function (thunk_fndecl, true); |
1b716045 | 2459 | |
2460 | /* We share the symbols in the formal argument list with other entry | |
2461 | points and the master function. Clear them so that they are | |
2462 | recreated for each function. */ | |
6777213b | 2463 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2464 | formal = formal->next) | |
c6871095 | 2465 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2466 | { | |
2467 | formal->sym->backend_decl = NULL_TREE; | |
2468 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2469 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2470 | } |
2471 | ||
2472 | if (thunk_sym->attr.function) | |
1b716045 | 2473 | { |
c6871095 | 2474 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2475 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2476 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2477 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2478 | } |
2479 | } | |
b31f705b | 2480 | |
4671339c | 2481 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2482 | } |
2483 | ||
2484 | ||
2485 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2486 | points. If global is true, generate the function in the global binding |
2487 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2488 | |
2489 | void | |
d896f9b3 | 2490 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2491 | { |
2492 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2493 | build_function_decl (ns->proc_name, global); |
1b716045 | 2494 | |
f888a3fb | 2495 | /* Compile the entry thunks. */ |
1b716045 | 2496 | if (ns->entries) |
d896f9b3 | 2497 | build_entry_thunks (ns, global); |
1b716045 | 2498 | |
2499 | /* Now create the read argument list. */ | |
2500 | create_function_arglist (ns->proc_name); | |
2501 | } | |
2502 | ||
c750cc52 | 2503 | /* Return the decl used to hold the function return value. If |
3350e716 | 2504 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2505 | |
2506 | tree | |
c750cc52 | 2507 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2508 | { |
c750cc52 | 2509 | tree decl; |
2510 | tree length; | |
2511 | tree this_fake_result_decl; | |
2512 | tree this_function_decl; | |
4ee9c684 | 2513 | |
2514 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2515 | ||
c750cc52 | 2516 | if (parent_flag) |
2517 | { | |
2518 | this_fake_result_decl = parent_fake_result_decl; | |
2519 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2520 | } | |
2521 | else | |
2522 | { | |
2523 | this_fake_result_decl = current_fake_result_decl; | |
2524 | this_function_decl = current_function_decl; | |
2525 | } | |
2526 | ||
c6871095 | 2527 | if (sym |
c750cc52 | 2528 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2529 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2530 | && sym != sym->ns->proc_name) |
2531 | { | |
d4163395 | 2532 | tree t = NULL, var; |
c750cc52 | 2533 | if (this_fake_result_decl != NULL) |
2534 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2535 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2536 | break; | |
2537 | if (t) | |
2538 | return TREE_VALUE (t); | |
c750cc52 | 2539 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2540 | ||
2541 | if (parent_flag) | |
2542 | this_fake_result_decl = parent_fake_result_decl; | |
2543 | else | |
2544 | this_fake_result_decl = current_fake_result_decl; | |
2545 | ||
d4163395 | 2546 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2547 | { |
2548 | tree field; | |
2549 | ||
2550 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2551 | field; field = DECL_CHAIN (field)) |
c6871095 | 2552 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2553 | sym->name) == 0) | |
2554 | break; | |
2555 | ||
2556 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2557 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2558 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2559 | } |
c750cc52 | 2560 | |
2561 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2562 | if (parent_flag) | |
2563 | gfc_add_decl_to_parent_function (var); | |
2564 | else | |
2565 | gfc_add_decl_to_function (var); | |
2566 | ||
d4163395 | 2567 | SET_DECL_VALUE_EXPR (var, decl); |
2568 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2569 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2570 | |
2571 | TREE_CHAIN (this_fake_result_decl) | |
2572 | = tree_cons (get_identifier (sym->name), var, | |
2573 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2574 | return var; |
c6871095 | 2575 | } |
2576 | ||
c750cc52 | 2577 | if (this_fake_result_decl != NULL_TREE) |
2578 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2579 | |
2580 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2581 | sym is NULL. */ | |
2582 | if (!sym) | |
2583 | return NULL_TREE; | |
2584 | ||
d4163395 | 2585 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2586 | { |
eeebe20b | 2587 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2588 | length = gfc_create_string_length (sym); |
2589 | else | |
eeebe20b | 2590 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2591 | if (TREE_CODE (length) == VAR_DECL |
2592 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2593 | gfc_add_decl_to_function (length); |
4ee9c684 | 2594 | } |
2595 | ||
2596 | if (gfc_return_by_reference (sym)) | |
2597 | { | |
c750cc52 | 2598 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2599 | |
c750cc52 | 2600 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2601 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2602 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2603 | |
2604 | TREE_USED (decl) = 1; | |
2605 | if (sym->as) | |
2606 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2607 | } | |
2608 | else | |
2609 | { | |
2610 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2611 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2612 | |
3350e716 | 2613 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2614 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2615 | VAR_DECL, get_identifier (name), |
3350e716 | 2616 | gfc_sym_type (sym)); |
2617 | else | |
1e71b314 | 2618 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2619 | VAR_DECL, get_identifier (name), |
3350e716 | 2620 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2621 | DECL_ARTIFICIAL (decl) = 1; |
2622 | DECL_EXTERNAL (decl) = 0; | |
2623 | TREE_PUBLIC (decl) = 0; | |
2624 | TREE_USED (decl) = 1; | |
764f1175 | 2625 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2626 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2627 | |
2628 | layout_decl (decl, 0); | |
2629 | ||
c750cc52 | 2630 | if (parent_flag) |
2631 | gfc_add_decl_to_parent_function (decl); | |
2632 | else | |
2633 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2634 | } |
2635 | ||
c750cc52 | 2636 | if (parent_flag) |
2637 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2638 | else | |
2639 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2640 | |
2641 | return decl; | |
2642 | } | |
2643 | ||
2644 | ||
2645 | /* Builds a function decl. The remaining parameters are the types of the | |
2646 | function arguments. Negative nargs indicates a varargs function. */ | |
2647 | ||
8ce86007 | 2648 | static tree |
2649 | build_library_function_decl_1 (tree name, const char *spec, | |
2650 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2651 | { |
f1f41a6c | 2652 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2653 | tree fntype; |
2654 | tree fndecl; | |
4ee9c684 | 2655 | int n; |
2656 | ||
2657 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2658 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2659 | |
4ee9c684 | 2660 | /* Create a list of the argument types. */ |
f1f41a6c | 2661 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2662 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2663 | { |
5edc3af9 | 2664 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2665 | arglist->quick_push (argtype); |
4ee9c684 | 2666 | } |
2667 | ||
2668 | /* Build the function type and decl. */ | |
5edc3af9 | 2669 | if (nargs >= 0) |
2670 | fntype = build_function_type_vec (rettype, arglist); | |
2671 | else | |
2672 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2673 | if (spec) |
2674 | { | |
2675 | tree attr_args = build_tree_list (NULL_TREE, | |
2676 | build_string (strlen (spec), spec)); | |
2677 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2678 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2679 | fntype = build_type_attribute_variant (fntype, attrs); | |
2680 | } | |
e60a6f7b | 2681 | fndecl = build_decl (input_location, |
2682 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2683 | |
2684 | /* Mark this decl as external. */ | |
2685 | DECL_EXTERNAL (fndecl) = 1; | |
2686 | TREE_PUBLIC (fndecl) = 1; | |
2687 | ||
4ee9c684 | 2688 | pushdecl (fndecl); |
2689 | ||
b2c4af5e | 2690 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2691 | |
2692 | return fndecl; | |
2693 | } | |
2694 | ||
8ce86007 | 2695 | /* Builds a function decl. The remaining parameters are the types of the |
2696 | function arguments. Negative nargs indicates a varargs function. */ | |
2697 | ||
2698 | tree | |
2699 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2700 | { | |
2701 | tree ret; | |
2702 | va_list args; | |
2703 | va_start (args, nargs); | |
2704 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2705 | va_end (args); | |
2706 | return ret; | |
2707 | } | |
2708 | ||
2709 | /* Builds a function decl. The remaining parameters are the types of the | |
2710 | function arguments. Negative nargs indicates a varargs function. | |
2711 | The SPEC parameter specifies the function argument and return type | |
2712 | specification according to the fnspec function type attribute. */ | |
2713 | ||
4bf69bc3 | 2714 | tree |
8ce86007 | 2715 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2716 | tree rettype, int nargs, ...) | |
2717 | { | |
2718 | tree ret; | |
2719 | va_list args; | |
2720 | va_start (args, nargs); | |
2721 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2722 | va_end (args); | |
2723 | return ret; | |
2724 | } | |
2725 | ||
4ee9c684 | 2726 | static void |
2727 | gfc_build_intrinsic_function_decls (void) | |
2728 | { | |
90ba9145 | 2729 | tree gfc_int4_type_node = gfc_get_int_type (4); |
2730 | tree gfc_int8_type_node = gfc_get_int_type (8); | |
920e54ef | 2731 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 2732 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 2733 | tree pchar1_type_node = gfc_get_pchar_type (1); |
2734 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 2735 | |
4ee9c684 | 2736 | /* String functions. */ |
241ecdc7 | 2737 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
2738 | get_identifier (PREFIX("compare_string")), "..R.R", | |
2739 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
2740 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2741 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 2742 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 2743 | |
2744 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
2745 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
2746 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
2747 | gfc_charlen_type_node, pchar1_type_node, | |
2748 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 2749 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 2750 | |
2751 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
2752 | get_identifier (PREFIX("string_len_trim")), "..R", | |
2753 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2754 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 2755 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 2756 | |
2757 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
2758 | get_identifier (PREFIX("string_index")), "..R.R.", | |
2759 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2760 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2761 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 2762 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 2763 | |
2764 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
2765 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
2766 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2767 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2768 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 2769 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 2770 | |
2771 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
2772 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
2773 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2774 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2775 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 2776 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 2777 | |
2778 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
2779 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
2780 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2781 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
2782 | pchar1_type_node); | |
2783 | ||
2784 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
2785 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
2786 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2787 | build_pointer_type (pchar1_type_node), integer_type_node, | |
2788 | integer_type_node); | |
2789 | ||
2790 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
2791 | get_identifier (PREFIX("adjustl")), ".W.R", | |
2792 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2793 | pchar1_type_node); | |
bc351485 | 2794 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 2795 | |
2796 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
2797 | get_identifier (PREFIX("adjustr")), ".W.R", | |
2798 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2799 | pchar1_type_node); | |
bc351485 | 2800 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 2801 | |
2802 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
2803 | get_identifier (PREFIX("select_string")), ".R.R.", | |
2804 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2805 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 2806 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 2807 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 2808 | |
2809 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2810 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
2811 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
2812 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2813 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 2814 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 2815 | |
2816 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2817 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
2818 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
2819 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
2820 | pchar4_type_node); | |
bc351485 | 2821 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 2822 | |
2823 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2824 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
2825 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2826 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 2827 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 2828 | |
2829 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
2830 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
2831 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2832 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2833 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 2834 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 2835 | |
2836 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
2837 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
2838 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2839 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2840 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 2841 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 2842 | |
2843 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
2844 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
2845 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2846 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2847 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 2848 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 2849 | |
2850 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2851 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
2852 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2853 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
2854 | pchar4_type_node); | |
2855 | ||
2856 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
2857 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
2858 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2859 | build_pointer_type (pchar4_type_node), integer_type_node, | |
2860 | integer_type_node); | |
2861 | ||
2862 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
2863 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
2864 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2865 | pchar4_type_node); | |
bc351485 | 2866 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 2867 | |
2868 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
2869 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
2870 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2871 | pchar4_type_node); | |
bc351485 | 2872 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 2873 | |
2874 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2875 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
2876 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2877 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 2878 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 2879 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 2880 | |
2881 | ||
2882 | /* Conversion between character kinds. */ | |
2883 | ||
241ecdc7 | 2884 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
2885 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
2886 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
2887 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 2888 | |
241ecdc7 | 2889 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
2890 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
2891 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
2892 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 2893 | |
40b806de | 2894 | /* Misc. functions. */ |
5fcc6ec2 | 2895 | |
241ecdc7 | 2896 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
2897 | get_identifier (PREFIX("ttynam")), ".W", | |
2898 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2899 | integer_type_node); | |
2900 | ||
2901 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
2902 | get_identifier (PREFIX("fdate")), ".W", | |
2903 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
2904 | ||
2905 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
2906 | get_identifier (PREFIX("ctime")), ".W", | |
2907 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2908 | gfc_int8_type_node); | |
2909 | ||
2910 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
2911 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
2912 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 2913 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 2914 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 2915 | |
2916 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
2917 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
2918 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 2919 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 2920 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 2921 | |
2922 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
2923 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
2924 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
2925 | pvoid_type_node); | |
537824d1 | 2926 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 2927 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 2928 | |
4ee9c684 | 2929 | /* Power functions. */ |
76834664 | 2930 | { |
920e54ef | 2931 | tree ctype, rtype, itype, jtype; |
2932 | int rkind, ikind, jkind; | |
2933 | #define NIKINDS 3 | |
2934 | #define NRKINDS 4 | |
2935 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
2936 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
2937 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
2938 | ||
2939 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 2940 | { |
920e54ef | 2941 | itype = gfc_get_int_type (ikinds[ikind]); |
2942 | ||
2943 | for (jkind=0; jkind < NIKINDS; jkind++) | |
2944 | { | |
2945 | jtype = gfc_get_int_type (ikinds[jkind]); | |
2946 | if (itype && jtype) | |
2947 | { | |
2948 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
2949 | ikinds[jkind]); | |
2950 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
2951 | gfc_build_library_function_decl (get_identifier (name), | |
2952 | jtype, 2, jtype, itype); | |
2177d98b | 2953 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 2954 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 2955 | } |
2956 | } | |
2957 | ||
2958 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 2959 | { |
920e54ef | 2960 | rtype = gfc_get_real_type (rkinds[rkind]); |
2961 | if (rtype && itype) | |
2962 | { | |
2963 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
2964 | ikinds[ikind]); | |
2965 | gfor_fndecl_math_powi[rkind][ikind].real = | |
2966 | gfc_build_library_function_decl (get_identifier (name), | |
2967 | rtype, 2, rtype, itype); | |
2177d98b | 2968 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 2969 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 2970 | } |
2971 | ||
2972 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
2973 | if (ctype && itype) | |
2974 | { | |
2975 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
2976 | ikinds[ikind]); | |
2977 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
2978 | gfc_build_library_function_decl (get_identifier (name), | |
2979 | ctype, 2,ctype, itype); | |
2177d98b | 2980 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 2981 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 2982 | } |
76834664 | 2983 | } |
2984 | } | |
920e54ef | 2985 | #undef NIKINDS |
2986 | #undef NRKINDS | |
76834664 | 2987 | } |
2988 | ||
241ecdc7 | 2989 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
2990 | get_identifier (PREFIX("ishftc4")), | |
2991 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
2992 | gfc_int4_type_node); | |
bc351485 | 2993 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
2994 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 2995 | |
241ecdc7 | 2996 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
2997 | get_identifier (PREFIX("ishftc8")), | |
2998 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
2999 | gfc_int4_type_node); | |
bc351485 | 3000 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3001 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3002 | |
920e54ef | 3003 | if (gfc_int16_type_node) |
bc351485 | 3004 | { |
3005 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3006 | get_identifier (PREFIX("ishftc16")), |
3007 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3008 | gfc_int4_type_node); | |
bc351485 | 3009 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3010 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3011 | } | |
920e54ef | 3012 | |
4e8e57b0 | 3013 | /* BLAS functions. */ |
3014 | { | |
36c921b9 | 3015 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3016 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3017 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3018 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3019 | tree pz = build_pointer_type | |
3020 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3021 | ||
3022 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3023 | (get_identifier | |
3024 | (gfc_option.flag_underscoring ? "sgemm_" | |
3025 | : "sgemm"), | |
3026 | void_type_node, 15, pchar_type_node, | |
3027 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3028 | ps, pint, ps, ps, pint, integer_type_node, |
3029 | integer_type_node); | |
4e8e57b0 | 3030 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3031 | (get_identifier | |
3032 | (gfc_option.flag_underscoring ? "dgemm_" | |
3033 | : "dgemm"), | |
3034 | void_type_node, 15, pchar_type_node, | |
3035 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3036 | pd, pint, pd, pd, pint, integer_type_node, |
3037 | integer_type_node); | |
4e8e57b0 | 3038 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3039 | (get_identifier | |
3040 | (gfc_option.flag_underscoring ? "cgemm_" | |
3041 | : "cgemm"), | |
3042 | void_type_node, 15, pchar_type_node, | |
3043 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3044 | pc, pint, pc, pc, pint, integer_type_node, |
3045 | integer_type_node); | |
4e8e57b0 | 3046 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3047 | (get_identifier | |
3048 | (gfc_option.flag_underscoring ? "zgemm_" | |
3049 | : "zgemm"), | |
3050 | void_type_node, 15, pchar_type_node, | |
3051 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3052 | pz, pint, pz, pz, pint, integer_type_node, |
3053 | integer_type_node); | |
4e8e57b0 | 3054 | } |
3055 | ||
4ee9c684 | 3056 | /* Other functions. */ |
241ecdc7 | 3057 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3058 | get_identifier (PREFIX("size0")), ".R", | |
3059 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3060 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3061 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3062 | |
3063 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3064 | get_identifier (PREFIX("size1")), ".R", | |
3065 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3066 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3067 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3068 | |
3069 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3070 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3071 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3072 | } |
3073 | ||
3074 | ||
3075 | /* Make prototypes for runtime library functions. */ | |
3076 | ||
3077 | void | |
3078 | gfc_build_builtin_function_decls (void) | |
3079 | { | |
90ba9145 | 3080 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3081 | |
241ecdc7 | 3082 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3083 | get_identifier (PREFIX("stop_numeric")), | |
3084 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3085 | /* STOP doesn't return. */ |
98ccec97 | 3086 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3087 | ||
dff2ea5f | 3088 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3089 | get_identifier (PREFIX("stop_numeric_f08")), | |
3090 | void_type_node, 1, gfc_int4_type_node); | |
3091 | /* STOP doesn't return. */ | |
3092 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3093 | ||
241ecdc7 | 3094 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3095 | get_identifier (PREFIX("stop_string")), ".R.", | |
3096 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3097 | /* STOP doesn't return. */ |
241ecdc7 | 3098 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3099 | |
241ecdc7 | 3100 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3101 | get_identifier (PREFIX("error_stop_numeric")), | |
3102 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3103 | /* ERROR STOP doesn't return. */ |
3104 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3105 | ||
241ecdc7 | 3106 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3107 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3108 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3109 | /* ERROR STOP doesn't return. */ |
3110 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3111 | ||
241ecdc7 | 3112 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3113 | get_identifier (PREFIX("pause_numeric")), | |
3114 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3115 | |
241ecdc7 | 3116 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3117 | get_identifier (PREFIX("pause_string")), ".R.", | |
3118 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3119 | |
241ecdc7 | 3120 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3121 | get_identifier (PREFIX("runtime_error")), ".R", | |
3122 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3123 | /* The runtime_error function does not return. */ |
3124 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3125 | |
241ecdc7 | 3126 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3127 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3128 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3129 | /* The runtime_error_at function does not return. */ |
3130 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3131 | |
241ecdc7 | 3132 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3133 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3134 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3135 | ||
3136 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3137 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3138 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3139 | pchar_type_node); | |
3140 | ||
3141 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3142 | get_identifier (PREFIX("os_error")), ".R", | |
3143 | void_type_node, 1, pchar_type_node); | |
9915365e | 3144 | /* The runtime_error function does not return. */ |
3145 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3146 | ||
241ecdc7 | 3147 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3148 | get_identifier (PREFIX("set_args")), | |
3149 | void_type_node, 2, integer_type_node, | |
3150 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3151 | |
241ecdc7 | 3152 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3153 | get_identifier (PREFIX("set_fpe")), | |
3154 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3155 | |
56c7c2d7 | 3156 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3157 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3158 | get_identifier (PREFIX("set_options")), "..R", | |
3159 | void_type_node, 2, integer_type_node, | |
3160 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3161 | |
241ecdc7 | 3162 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3163 | get_identifier (PREFIX("set_convert")), | |
3164 | void_type_node, 1, integer_type_node); | |
15774a8b | 3165 | |
241ecdc7 | 3166 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3167 | get_identifier (PREFIX("set_record_marker")), | |
3168 | void_type_node, 1, integer_type_node); | |
f23886ab | 3169 | |
241ecdc7 | 3170 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3171 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3172 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3173 | |
8ce86007 | 3174 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3175 | get_identifier (PREFIX("internal_pack")), ".r", |
3176 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3177 | |
8ce86007 | 3178 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3179 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3180 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3181 | ||
3182 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3183 | get_identifier (PREFIX("associated")), ".RR", | |
3184 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3185 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3186 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3187 | |
70b5944a | 3188 | /* Coarray library calls. */ |
3189 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
3190 | { | |
3191 | tree pint_type, pppchar_type; | |
3192 | ||
3193 | pint_type = build_pointer_type (integer_type_node); | |
3194 | pppchar_type | |
3195 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3196 | ||
3197 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3198 | get_identifier (PREFIX("caf_init")), void_type_node, | |
3199 | 4, pint_type, pppchar_type, pint_type, pint_type); | |
3200 | ||
3201 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3202 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3203 | ||
a961ca30 | 3204 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3205 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3206 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3207 | pchar_type_node, integer_type_node); |
3208 | ||
3209 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3210 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3211 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3212 | |
70b5944a | 3213 | gfor_fndecl_caf_critical = gfc_build_library_function_decl ( |
3214 | get_identifier (PREFIX("caf_critical")), void_type_node, 0); | |
3215 | ||
3216 | gfor_fndecl_caf_end_critical = gfc_build_library_function_decl ( | |
3217 | get_identifier (PREFIX("caf_end_critical")), void_type_node, 0); | |
3218 | ||
3219 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3220 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
3221 | 3, pint_type, build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3222 | |
3223 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3224 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3225 | 5, integer_type_node, pint_type, pint_type, | |
3226 | build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3227 | |
3228 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3229 | get_identifier (PREFIX("caf_error_stop")), | |
3230 | void_type_node, 1, gfc_int4_type_node); | |
3231 | /* CAF's ERROR STOP doesn't return. */ | |
3232 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3233 | ||
3234 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3235 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3236 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3237 | /* CAF's ERROR STOP doesn't return. */ | |
3238 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
3239 | } | |
3240 | ||
4ee9c684 | 3241 | gfc_build_intrinsic_function_decls (); |
3242 | gfc_build_intrinsic_lib_fndecls (); | |
3243 | gfc_build_io_library_fndecls (); | |
3244 | } | |
3245 | ||
3246 | ||
231e961a | 3247 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3248 | |
c5faa799 | 3249 | static void |
3250 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3251 | gfc_wrapped_block *block) | |
4ee9c684 | 3252 | { |
c5faa799 | 3253 | stmtblock_t init; |
4ee9c684 | 3254 | |
b9c7fce7 | 3255 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3256 | |
c5faa799 | 3257 | gfc_start_block (&init); |
4ee9c684 | 3258 | |
3259 | /* Evaluate the string length expression. */ | |
c5faa799 | 3260 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3261 | |
c5faa799 | 3262 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3263 | |
c5faa799 | 3264 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3265 | } |
3266 | ||
3267 | ||
3268 | /* Allocate and cleanup an automatic character variable. */ | |
3269 | ||
c5faa799 | 3270 | static void |
3271 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3272 | { |
c5faa799 | 3273 | stmtblock_t init; |
4ee9c684 | 3274 | tree decl; |
4ee9c684 | 3275 | tree tmp; |
3276 | ||
22d678e8 | 3277 | gcc_assert (sym->backend_decl); |
eeebe20b | 3278 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3279 | |
3714c8b6 | 3280 | gfc_init_block (&init); |
4ee9c684 | 3281 | |
3282 | /* Evaluate the string length expression. */ | |
c5faa799 | 3283 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3284 | |
c5faa799 | 3285 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3286 | |
4ee9c684 | 3287 | decl = sym->backend_decl; |
3288 | ||
afcf285e | 3289 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3290 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3291 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3292 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3293 | |
c5faa799 | 3294 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3295 | } |
3296 | ||
c8f1568f | 3297 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3298 | ||
c5faa799 | 3299 | static void |
3300 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3301 | { |
c5faa799 | 3302 | stmtblock_t init; |
c8f1568f | 3303 | |
3304 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3305 | gfc_start_block (&init); |
c8f1568f | 3306 | |
3307 | /* Set the initial value to length. See the comments in | |
3308 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3309 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3310 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3311 | |
c5faa799 | 3312 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3313 | } |
3314 | ||
d4163395 | 3315 | static void |
3316 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3317 | { | |
3318 | tree t = *tp, var, val; | |
3319 | ||
3320 | if (t == NULL || t == error_mark_node) | |
3321 | return; | |
3322 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3323 | return; | |
3324 | ||
3325 | if (TREE_CODE (t) == SAVE_EXPR) | |
3326 | { | |
3327 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3328 | { | |
3329 | *tp = TREE_OPERAND (t, 0); | |
3330 | return; | |
3331 | } | |
3332 | val = TREE_OPERAND (t, 0); | |
3333 | } | |
3334 | else | |
3335 | val = t; | |
3336 | ||
3337 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3338 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3339 | gfc_add_modify (body, var, val); |
d4163395 | 3340 | if (TREE_CODE (t) == SAVE_EXPR) |
3341 | TREE_OPERAND (t, 0) = var; | |
3342 | *tp = var; | |
3343 | } | |
3344 | ||
3345 | static void | |
3346 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3347 | { | |
3348 | tree t; | |
3349 | ||
3350 | if (type == NULL || type == error_mark_node) | |
3351 | return; | |
3352 | ||
3353 | type = TYPE_MAIN_VARIANT (type); | |
3354 | ||
3355 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3356 | { | |
3357 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3358 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3359 | ||
3360 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3361 | { | |
3362 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3363 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3364 | } | |
3365 | } | |
3366 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3367 | { | |
3368 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3369 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3370 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3371 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3372 | ||
3373 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3374 | { | |
3375 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3376 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3377 | } | |
3378 | } | |
3379 | } | |
3380 | ||
3381 | /* Make sure all type sizes and array domains are either constant, | |
3382 | or variable or parameter decls. This is a simplified variant | |
3383 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3384 | variables in the expressions have been gimplified yet. | |
3385 | As type sizes and domains for various variable length arrays | |
3386 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3387 | time, without this routine gimplify_type_sizes in the middle-end | |
3388 | could result in the type sizes being gimplified earlier than where | |
3389 | those variables are initialized. */ | |
3390 | ||
3391 | void | |
3392 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3393 | { | |
3394 | tree type = TREE_TYPE (sym->backend_decl); | |
3395 | ||
3396 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3397 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3398 | { | |
3399 | if (! current_fake_result_decl) | |
3400 | return; | |
3401 | ||
3402 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3403 | } | |
3404 | ||
3405 | while (POINTER_TYPE_P (type)) | |
3406 | type = TREE_TYPE (type); | |
3407 | ||
3408 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3409 | { | |
3410 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3411 | ||
3412 | while (POINTER_TYPE_P (etype)) | |
3413 | etype = TREE_TYPE (etype); | |
3414 | ||
3415 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3416 | } | |
3417 | ||
3418 | gfc_trans_vla_type_sizes_1 (type, body); | |
3419 | } | |
3420 | ||
4ee9c684 | 3421 | |
f0d4969f | 3422 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3423 | and using trans_assignment to do the work. Set dealloc to false |
3424 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3425 | void |
3426 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3427 | { |
f0d4969f | 3428 | gfc_expr *e; |
87114d2e | 3429 | tree tmp; |
3430 | tree present; | |
3431 | ||
c5faa799 | 3432 | gcc_assert (block); |
3433 | ||
f0d4969f | 3434 | gcc_assert (!sym->attr.allocatable); |
3435 | gfc_set_sym_referenced (sym); | |
3436 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3437 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3438 | if (sym->attr.dummy && (sym->attr.optional |
3439 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3440 | { |
f0d4969f | 3441 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3442 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3443 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3444 | } |
c5faa799 | 3445 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3446 | gfc_free_expr (e); |
87114d2e | 3447 | } |
3448 | ||
3449 | ||
8714fc76 | 3450 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3451 | them their default initializer, if they do not have allocatable | |
3452 | components, they have their allocatable components deallocated. */ | |
3453 | ||
c5faa799 | 3454 | static void |
3455 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3456 | { |
c5faa799 | 3457 | stmtblock_t init; |
f0d4969f | 3458 | gfc_formal_arglist *f; |
8714fc76 | 3459 | tree tmp; |
5907c3ea | 3460 | tree present; |
f0d4969f | 3461 | |
c5faa799 | 3462 | gfc_init_block (&init); |
6777213b | 3463 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3464 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3465 | && !f->sym->attr.pointer |
3466 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3467 | { |
c38054a8 | 3468 | if (f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) |
8714fc76 | 3469 | { |
eeebe20b | 3470 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, |
8714fc76 | 3471 | f->sym->backend_decl, |
3472 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3473 | |
c38054a8 | 3474 | if (f->sym->attr.optional |
3475 | || f->sym->ns->proc_name->attr.entry_master) | |
3476 | { | |
3477 | present = gfc_conv_expr_present (f->sym); | |
2be9d8f1 | 3478 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), |
3479 | present, tmp, | |
3480 | build_empty_stmt (input_location)); | |
c38054a8 | 3481 | } |
5907c3ea | 3482 | |
c5faa799 | 3483 | gfc_add_expr_to_block (&init, tmp); |
8714fc76 | 3484 | } |
c38054a8 | 3485 | else if (f->sym->value) |
c5faa799 | 3486 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3487 | } |
c56d57d6 | 3488 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3489 | && f->sym->ts.type == BT_CLASS | |
3490 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
3491 | && CLASS_DATA (f->sym)->ts.u.derived->attr.alloc_comp) | |
3492 | { | |
6b3952d7 | 3493 | tmp = gfc_class_data_get (f->sym->backend_decl); |
3494 | if (CLASS_DATA (f->sym)->as == NULL) | |
3495 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
c56d57d6 | 3496 | tmp = gfc_deallocate_alloc_comp (CLASS_DATA (f->sym)->ts.u.derived, |
3497 | tmp, | |
3498 | CLASS_DATA (f->sym)->as ? | |
3499 | CLASS_DATA (f->sym)->as->rank : 0); | |
3500 | ||
3501 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3502 | { | |
3503 | present = gfc_conv_expr_present (f->sym); | |
3504 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3505 | present, tmp, | |
3506 | build_empty_stmt (input_location)); | |
3507 | } | |
3508 | ||
3509 | gfc_add_expr_to_block (&init, tmp); | |
3510 | } | |
f0d4969f | 3511 | |
c5faa799 | 3512 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3513 | } |
3514 | ||
87114d2e | 3515 | |
4ee9c684 | 3516 | /* Generate function entry and exit code, and add it to the function body. |
3517 | This includes: | |
f888a3fb | 3518 | Allocation and initialization of array variables. |
4ee9c684 | 3519 | Allocation of character string variables. |
c8f1568f | 3520 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3521 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3522 | Initialization of ASSOCIATE names. |
0a96a7cc | 3523 | Automatic deallocation. */ |
4ee9c684 | 3524 | |
89ac8ba1 | 3525 | void |
3526 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3527 | { |
3528 | locus loc; | |
3529 | gfc_symbol *sym; | |
d4163395 | 3530 | gfc_formal_arglist *f; |
c5faa799 | 3531 | stmtblock_t tmpblock; |
25dd7350 | 3532 | bool seen_trans_deferred_array = false; |
617125a6 | 3533 | tree tmp = NULL; |
3534 | gfc_expr *e; | |
3535 | gfc_se se; | |
3536 | stmtblock_t init; | |
4ee9c684 | 3537 | |
3538 | /* Deal with implicit return variables. Explicit return variables will | |
3539 | already have been added. */ | |
3540 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3541 | { | |
3542 | if (!current_fake_result_decl) | |
3543 | { | |
c6871095 | 3544 | gfc_entry_list *el = NULL; |
3545 | if (proc_sym->attr.entry_master) | |
3546 | { | |
3547 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3548 | if (el->sym != el->sym->result) | |
3549 | break; | |
3550 | } | |
fa7b6574 | 3551 | /* TODO: move to the appropriate place in resolve.c. */ |
3552 | if (warn_return_type && el == NULL) | |
3553 | gfc_warning ("Return value of function '%s' at %L not set", | |
3554 | proc_sym->name, &proc_sym->declared_at); | |
4ee9c684 | 3555 | } |
c6871095 | 3556 | else if (proc_sym->as) |
4ee9c684 | 3557 | { |
d4163395 | 3558 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3559 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3560 | |
3561 | /* An automatic character length, pointer array result. */ | |
3562 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3563 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3564 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3565 | } |
3566 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3567 | { | |
617125a6 | 3568 | if (proc_sym->ts.deferred) |
3569 | { | |
3570 | tmp = NULL; | |
da2c4122 | 3571 | gfc_save_backend_locus (&loc); |
3572 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3573 | gfc_start_block (&init); |
3574 | /* Zero the string length on entry. */ | |
3575 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3576 | build_int_cst (gfc_charlen_type_node, 0)); | |
3577 | /* Null the pointer. */ | |
3578 | e = gfc_lval_expr_from_sym (proc_sym); | |
3579 | gfc_init_se (&se, NULL); | |
3580 | se.want_pointer = 1; | |
3581 | gfc_conv_expr (&se, e); | |
3582 | gfc_free_expr (e); | |
3583 | tmp = se.expr; | |
3584 | gfc_add_modify (&init, tmp, | |
3585 | fold_convert (TREE_TYPE (se.expr), | |
3586 | null_pointer_node)); | |
da2c4122 | 3587 | gfc_restore_backend_locus (&loc); |
617125a6 | 3588 | |
3589 | /* Pass back the string length on exit. */ | |
3590 | tmp = proc_sym->ts.u.cl->passed_length; | |
3591 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3592 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3593 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3594 | gfc_charlen_type_node, tmp, | |
3595 | proc_sym->ts.u.cl->backend_decl); | |
3596 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3597 | } | |
3598 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 3599 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3600 | } |
3601 | else | |
bdaed7d2 | 3602 | gcc_assert (gfc_option.flag_f2c |
3603 | && proc_sym->ts.type == BT_COMPLEX); | |
4ee9c684 | 3604 | } |
3605 | ||
87114d2e | 3606 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
3607 | should be done here so that the offsets and lbounds of arrays | |
3608 | are available. */ | |
da2c4122 | 3609 | gfc_save_backend_locus (&loc); |
3610 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 3611 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 3612 | gfc_restore_backend_locus (&loc); |
87114d2e | 3613 | |
4ee9c684 | 3614 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
3615 | { | |
2294b616 | 3616 | bool sym_has_alloc_comp = (sym->ts.type == BT_DERIVED) |
eeebe20b | 3617 | && sym->ts.u.derived->attr.alloc_comp; |
8f3f9eab | 3618 | if (sym->assoc) |
3c82e013 | 3619 | continue; |
3620 | ||
a56d63bc | 3621 | if (sym->attr.subref_array_pointer |
3622 | && GFC_DECL_SPAN (sym->backend_decl) | |
3623 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
3624 | { | |
3625 | gfc_init_block (&tmpblock); | |
3626 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
3627 | build_int_cst (gfc_array_index_type, 0)); | |
3628 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3629 | NULL_TREE); | |
3630 | } | |
3631 | ||
7a777e43 | 3632 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 3633 | { |
f7a6fca4 | 3634 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ |
3635 | array_type tmp = sym->as->type; | |
3636 | if (tmp == AS_ASSUMED_SIZE && sym->as->cp_was_assumed) | |
3637 | tmp = AS_EXPLICIT; | |
3638 | switch (tmp) | |
4ee9c684 | 3639 | { |
3640 | case AS_EXPLICIT: | |
3641 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3642 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3643 | else if (sym->attr.pointer || sym->attr.allocatable) |
3644 | { | |
3645 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 3646 | { |
3647 | gfc_save_backend_locus (&loc); | |
3648 | gfc_set_backend_locus (&sym->declared_at); | |
3649 | gfc_trans_static_array_pointer (sym); | |
3650 | gfc_restore_backend_locus (&loc); | |
3651 | } | |
4ee9c684 | 3652 | else |
25dd7350 | 3653 | { |
3654 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3655 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3656 | } |
4ee9c684 | 3657 | } |
7c7db7f6 | 3658 | else if (sym->attr.codimension && TREE_STATIC (sym->backend_decl)) |
3659 | { | |
3660 | gfc_init_block (&tmpblock); | |
3661 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
3662 | &tmpblock, sym); | |
3663 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3664 | NULL_TREE); | |
3665 | continue; | |
3666 | } | |
a961ca30 | 3667 | else if (gfc_option.coarray != GFC_FCOARRAY_LIB) |
4ee9c684 | 3668 | { |
da2c4122 | 3669 | gfc_save_backend_locus (&loc); |
3670 | gfc_set_backend_locus (&sym->declared_at); | |
3671 | ||
25dd7350 | 3672 | if (sym_has_alloc_comp) |
3673 | { | |
3674 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3675 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3676 | } |
f0d4969f | 3677 | else if (sym->ts.type == BT_DERIVED |
3678 | && sym->value | |
3679 | && !sym->attr.data | |
3680 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3681 | { |
3682 | gfc_start_block (&tmpblock); | |
3683 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3684 | gfc_add_init_cleanup (block, |
c5faa799 | 3685 | gfc_finish_block (&tmpblock), |
3686 | NULL_TREE); | |
3687 | } | |
25dd7350 | 3688 | |
c5faa799 | 3689 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 3690 | sym, block); |
4671339c | 3691 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3692 | } |
3693 | break; | |
3694 | ||
3695 | case AS_ASSUMED_SIZE: | |
3696 | /* Must be a dummy parameter. */ | |
452695a8 | 3697 | gcc_assert (sym->attr.dummy || sym->as->cp_was_assumed); |
4ee9c684 | 3698 | |
3699 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 3700 | if (sym->attr.dummy) |
89ac8ba1 | 3701 | gfc_trans_g77_array (sym, block); |
c5faa799 | 3702 | break; |
4ee9c684 | 3703 | |
3704 | case AS_ASSUMED_SHAPE: | |
3705 | /* Must be a dummy parameter. */ | |
22d678e8 | 3706 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 3707 | |
89ac8ba1 | 3708 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3709 | break; |
3710 | ||
f00f6dd6 | 3711 | case AS_ASSUMED_RANK: |
4ee9c684 | 3712 | case AS_DEFERRED: |
25dd7350 | 3713 | seen_trans_deferred_array = true; |
89ac8ba1 | 3714 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3715 | break; |
3716 | ||
3717 | default: | |
22d678e8 | 3718 | gcc_unreachable (); |
4ee9c684 | 3719 | } |
25dd7350 | 3720 | if (sym_has_alloc_comp && !seen_trans_deferred_array) |
89ac8ba1 | 3721 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3722 | } |
fd23cc08 | 3723 | else if ((!sym->attr.dummy || sym->ts.deferred) |
3724 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 3725 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 3726 | continue; |
617125a6 | 3727 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 3728 | && (sym->attr.allocatable |
3729 | || (sym->ts.type == BT_CLASS | |
3730 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 3731 | { |
be125be0 | 3732 | if (!sym->attr.save && gfc_option.flag_max_stack_var_size != 0) |
908e9973 | 3733 | { |
d0d776fb | 3734 | tree descriptor = NULL_TREE; |
3735 | ||
908e9973 | 3736 | /* Nullify and automatic deallocation of allocatable |
3737 | scalars. */ | |
908e9973 | 3738 | e = gfc_lval_expr_from_sym (sym); |
3739 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 3740 | gfc_add_data_component (e); |
908e9973 | 3741 | |
3742 | gfc_init_se (&se, NULL); | |
fd23cc08 | 3743 | if (sym->ts.type != BT_CLASS |
3744 | || sym->ts.u.derived->attr.dimension | |
3745 | || sym->ts.u.derived->attr.codimension) | |
3746 | { | |
3747 | se.want_pointer = 1; | |
3748 | gfc_conv_expr (&se, e); | |
3749 | } | |
3750 | else if (sym->ts.type == BT_CLASS | |
3751 | && !CLASS_DATA (sym)->attr.dimension | |
3752 | && !CLASS_DATA (sym)->attr.codimension) | |
3753 | { | |
3754 | se.want_pointer = 1; | |
3755 | gfc_conv_expr (&se, e); | |
3756 | } | |
3757 | else | |
3758 | { | |
3759 | gfc_conv_expr (&se, e); | |
d0d776fb | 3760 | descriptor = se.expr; |
fd23cc08 | 3761 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
3762 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
3763 | } | |
908e9973 | 3764 | gfc_free_expr (e); |
3765 | ||
da2c4122 | 3766 | gfc_save_backend_locus (&loc); |
3767 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 3768 | gfc_start_block (&init); |
617125a6 | 3769 | |
3770 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3771 | { | |
3772 | /* Nullify when entering the scope. */ | |
3773 | gfc_add_modify (&init, se.expr, | |
3774 | fold_convert (TREE_TYPE (se.expr), | |
3775 | null_pointer_node)); | |
3776 | } | |
3777 | ||
d0cfec1c | 3778 | if ((sym->attr.dummy || sym->attr.result || sym->result == sym) |
617125a6 | 3779 | && sym->ts.type == BT_CHARACTER |
3780 | && sym->ts.deferred) | |
3781 | { | |
3782 | /* Character length passed by reference. */ | |
3783 | tmp = sym->ts.u.cl->passed_length; | |
3784 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3785 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3786 | ||
3787 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3788 | /* Zero the string length when entering the scope. */ | |
3789 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
3790 | build_int_cst (gfc_charlen_type_node, 0)); | |
3791 | else | |
3792 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3793 | ||
da2c4122 | 3794 | gfc_restore_backend_locus (&loc); |
3795 | ||
617125a6 | 3796 | /* Pass the final character length back. */ |
3797 | if (sym->attr.intent != INTENT_IN) | |
3798 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3799 | gfc_charlen_type_node, tmp, | |
3800 | sym->ts.u.cl->backend_decl); | |
3801 | else | |
3802 | tmp = NULL_TREE; | |
3803 | } | |
da2c4122 | 3804 | else |
3805 | gfc_restore_backend_locus (&loc); | |
908e9973 | 3806 | |
3807 | /* Deallocate when leaving the scope. Nullifying is not | |
3808 | needed. */ | |
617125a6 | 3809 | if (!sym->attr.result && !sym->attr.dummy) |
d0d776fb | 3810 | { |
3811 | if (sym->ts.type == BT_CLASS | |
3812 | && CLASS_DATA (sym)->attr.codimension) | |
3813 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
3814 | NULL_TREE, NULL_TREE, | |
3815 | NULL_TREE, true, NULL, | |
3816 | true); | |
3817 | else | |
d92bcdec | 3818 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, |
3819 | true, | |
3820 | gfc_lval_expr_from_sym (sym), | |
3821 | sym->ts); | |
d0d776fb | 3822 | } |
afc44c79 | 3823 | if (sym->ts.type == BT_CLASS) |
3824 | { | |
3825 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 3826 | gfc_symbol *vtab; |
afc44c79 | 3827 | tree rhs; |
da2c4122 | 3828 | |
3829 | gfc_save_backend_locus (&loc); | |
3830 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 3831 | e = gfc_lval_expr_from_sym (sym); |
3832 | gfc_add_vptr_component (e); | |
3833 | gfc_init_se (&se, NULL); | |
3834 | se.want_pointer = 1; | |
3835 | gfc_conv_expr (&se, e); | |
3836 | gfc_free_expr (e); | |
a90fe829 | 3837 | if (UNLIMITED_POLY (sym)) |
3838 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
3839 | else | |
3840 | { | |
3841 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
3842 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
3843 | gfc_get_symbol_decl (vtab)); | |
3844 | } | |
afc44c79 | 3845 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 3846 | gfc_restore_backend_locus (&loc); |
afc44c79 | 3847 | } |
3848 | ||
89ac8ba1 | 3849 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 3850 | } |
0a96a7cc | 3851 | } |
617125a6 | 3852 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
3853 | { | |
3854 | tree tmp = NULL; | |
3855 | stmtblock_t init; | |
3856 | ||
3857 | /* If we get to here, all that should be left are pointers. */ | |
3858 | gcc_assert (sym->attr.pointer); | |
3859 | ||
3860 | if (sym->attr.dummy) | |
3861 | { | |
3862 | gfc_start_block (&init); | |
3863 | ||
3864 | /* Character length passed by reference. */ | |
3865 | tmp = sym->ts.u.cl->passed_length; | |
3866 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3867 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3868 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3869 | /* Pass the final character length back. */ | |
3870 | if (sym->attr.intent != INTENT_IN) | |
3871 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3872 | gfc_charlen_type_node, tmp, | |
3873 | sym->ts.u.cl->backend_decl); | |
3874 | else | |
3875 | tmp = NULL_TREE; | |
3876 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3877 | } | |
3878 | } | |
3e715c81 | 3879 | else if (sym->ts.deferred) |
3880 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
fabc1fc9 | 3881 | else if (sym_has_alloc_comp) |
89ac8ba1 | 3882 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3883 | else if (sym->ts.type == BT_CHARACTER) |
3884 | { | |
4671339c | 3885 | gfc_save_backend_locus (&loc); |
4ee9c684 | 3886 | gfc_set_backend_locus (&sym->declared_at); |
3887 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3888 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 3889 | else |
89ac8ba1 | 3890 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 3891 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3892 | } |
c8f1568f | 3893 | else if (sym->attr.assign) |
3894 | { | |
4671339c | 3895 | gfc_save_backend_locus (&loc); |
c8f1568f | 3896 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 3897 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 3898 | gfc_restore_backend_locus (&loc); |
c8f1568f | 3899 | } |
f0d4969f | 3900 | else if (sym->ts.type == BT_DERIVED |
3901 | && sym->value | |
3902 | && !sym->attr.data | |
3903 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3904 | { |
3905 | gfc_start_block (&tmpblock); | |
3906 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3907 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 3908 | NULL_TREE); |
3909 | } | |
a90fe829 | 3910 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 3911 | gcc_unreachable (); |
4ee9c684 | 3912 | } |
3913 | ||
c5faa799 | 3914 | gfc_init_block (&tmpblock); |
d4163395 | 3915 | |
6777213b | 3916 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 3917 | { |
3918 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
3919 | { | |
eeebe20b | 3920 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
3921 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 3922 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 3923 | } |
1e853e89 | 3924 | } |
d4163395 | 3925 | |
3926 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
3927 | && current_fake_result_decl != NULL) | |
3928 | { | |
eeebe20b | 3929 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
3930 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 3931 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 3932 | } |
3933 | ||
89ac8ba1 | 3934 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 3935 | } |
3936 | ||
df4d540f | 3937 | static GTY ((param_is (struct module_htab_entry))) htab_t module_htab; |
3938 | ||
3939 | /* Hash and equality functions for module_htab. */ | |
3940 | ||
3941 | static hashval_t | |
3942 | module_htab_do_hash (const void *x) | |
3943 | { | |
3944 | return htab_hash_string (((const struct module_htab_entry *)x)->name); | |
3945 | } | |
3946 | ||
3947 | static int | |
3948 | module_htab_eq (const void *x1, const void *x2) | |
3949 | { | |
3950 | return strcmp ((((const struct module_htab_entry *)x1)->name), | |
3951 | (const char *)x2) == 0; | |
3952 | } | |
3953 | ||
3954 | /* Hash and equality functions for module_htab's decls. */ | |
3955 | ||
3956 | static hashval_t | |
3957 | module_htab_decls_hash (const void *x) | |
3958 | { | |
3959 | const_tree t = (const_tree) x; | |
3960 | const_tree n = DECL_NAME (t); | |
3961 | if (n == NULL_TREE) | |
3962 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 3963 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 3964 | } |
3965 | ||
3966 | static int | |
3967 | module_htab_decls_eq (const void *x1, const void *x2) | |
3968 | { | |
3969 | const_tree t1 = (const_tree) x1; | |
3970 | const_tree n1 = DECL_NAME (t1); | |
3971 | if (n1 == NULL_TREE) | |
3972 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
3973 | return strcmp (IDENTIFIER_POINTER (n1), (const char *) x2) == 0; | |
3974 | } | |
3975 | ||
3976 | struct module_htab_entry * | |
3977 | gfc_find_module (const char *name) | |
3978 | { | |
3979 | void **slot; | |
3980 | ||
3981 | if (! module_htab) | |
3982 | module_htab = htab_create_ggc (10, module_htab_do_hash, | |
3983 | module_htab_eq, NULL); | |
3984 | ||
3985 | slot = htab_find_slot_with_hash (module_htab, name, | |
3986 | htab_hash_string (name), INSERT); | |
3987 | if (*slot == NULL) | |
3988 | { | |
ba72912a | 3989 | struct module_htab_entry *entry = ggc_alloc_cleared_module_htab_entry (); |
df4d540f | 3990 | |
3991 | entry->name = gfc_get_string (name); | |
3992 | entry->decls = htab_create_ggc (10, module_htab_decls_hash, | |
3993 | module_htab_decls_eq, NULL); | |
3994 | *slot = (void *) entry; | |
3995 | } | |
3996 | return (struct module_htab_entry *) *slot; | |
3997 | } | |
3998 | ||
3999 | void | |
4000 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4001 | { | |
4002 | void **slot; | |
4003 | const char *name; | |
4004 | ||
4005 | if (DECL_NAME (decl)) | |
4006 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4007 | else | |
4008 | { | |
4009 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4010 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4011 | } | |
4012 | slot = htab_find_slot_with_hash (entry->decls, name, | |
4013 | htab_hash_string (name), INSERT); | |
4014 | if (*slot == NULL) | |
4015 | *slot = (void *) decl; | |
4016 | } | |
4017 | ||
4018 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 4019 | |
4020 | /* Output an initialized decl for a module variable. */ | |
4021 | ||
4022 | static void | |
4023 | gfc_create_module_variable (gfc_symbol * sym) | |
4024 | { | |
4025 | tree decl; | |
4ee9c684 | 4026 | |
d77f260f | 4027 | /* Module functions with alternate entries are dealt with later and |
4028 | would get caught by the next condition. */ | |
4029 | if (sym->attr.entry) | |
4030 | return; | |
4031 | ||
c5d33754 | 4032 | /* Make sure we convert the types of the derived types from iso_c_binding |
4033 | into (void *). */ | |
4034 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4035 | && sym->ts.type == BT_DERIVED) | |
4036 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4037 | ||
df4d540f | 4038 | if (sym->attr.flavor == FL_DERIVED |
4039 | && sym->backend_decl | |
4040 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4041 | { | |
4042 | decl = sym->backend_decl; | |
4043 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4044 | |
4045 | /* -fwhole-file mixes up the contexts so these asserts are unnecessary. */ | |
4046 | if (!(gfc_option.flag_whole_file && sym->attr.use_assoc)) | |
4047 | { | |
4048 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4049 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4050 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4051 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4052 | == sym->ns->proc_name->backend_decl); | |
4053 | } | |
df4d540f | 4054 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4055 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4056 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4057 | } | |
4058 | ||
cf269acc | 4059 | /* Only output variables, procedure pointers and array valued, |
4060 | or derived type, parameters. */ | |
4ee9c684 | 4061 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4062 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4063 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4064 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4065 | return; |
4066 | ||
df4d540f | 4067 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4068 | { | |
4069 | decl = sym->backend_decl; | |
16a40513 | 4070 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4071 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4072 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4073 | gfc_module_add_decl (cur_module, decl); | |
4074 | } | |
4075 | ||
d43a7f7f | 4076 | /* Don't generate variables from other modules. Variables from |
4077 | COMMONs will already have been generated. */ | |
4078 | if (sym->attr.use_assoc || sym->attr.in_common) | |
4ee9c684 | 4079 | return; |
4080 | ||
2b685f8e | 4081 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4082 | if (sym->backend_decl |
df4d540f | 4083 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4084 | return; | |
2b685f8e | 4085 | |
23d075f4 | 4086 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
4ee9c684 | 4087 | internal_error ("backend decl for module variable %s already exists", |
4088 | sym->name); | |
4089 | ||
4090 | /* We always want module variables to be created. */ | |
4091 | sym->attr.referenced = 1; | |
4092 | /* Create the decl. */ | |
4093 | decl = gfc_get_symbol_decl (sym); | |
4094 | ||
4ee9c684 | 4095 | /* Create the variable. */ |
4096 | pushdecl (decl); | |
df4d540f | 4097 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4098 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4099 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4100 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4101 | |
4102 | /* Also add length of strings. */ | |
4103 | if (sym->ts.type == BT_CHARACTER) | |
4104 | { | |
4105 | tree length; | |
4106 | ||
eeebe20b | 4107 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4108 | gcc_assert (length || sym->attr.proc_pointer); |
4109 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4110 | { |
4111 | pushdecl (length); | |
b2c4af5e | 4112 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4113 | } |
4114 | } | |
a961ca30 | 4115 | |
4116 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4117 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4118 | has_coarray_vars = true; | |
4ee9c684 | 4119 | } |
4120 | ||
51d9479b | 4121 | /* Emit debug information for USE statements. */ |
df4d540f | 4122 | |
4123 | static void | |
4124 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4125 | { | |
4126 | gfc_use_list *use_stmt; | |
4127 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4128 | { | |
4129 | struct module_htab_entry *entry | |
4130 | = gfc_find_module (use_stmt->module_name); | |
4131 | gfc_use_rename *rent; | |
4132 | ||
4133 | if (entry->namespace_decl == NULL) | |
4134 | { | |
4135 | entry->namespace_decl | |
e60a6f7b | 4136 | = build_decl (input_location, |
4137 | NAMESPACE_DECL, | |
df4d540f | 4138 | get_identifier (use_stmt->module_name), |
4139 | void_type_node); | |
4140 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4141 | } | |
51d9479b | 4142 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4143 | if (!use_stmt->only_flag) |
4144 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4145 | NULL_TREE, | |
4146 | ns->proc_name->backend_decl, | |
4147 | false); | |
4148 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4149 | { | |
4150 | tree decl, local_name; | |
4151 | void **slot; | |
4152 | ||
4153 | if (rent->op != INTRINSIC_NONE) | |
4154 | continue; | |
4155 | ||
4156 | slot = htab_find_slot_with_hash (entry->decls, rent->use_name, | |
4157 | htab_hash_string (rent->use_name), | |
4158 | INSERT); | |
4159 | if (*slot == NULL) | |
4160 | { | |
4161 | gfc_symtree *st; | |
4162 | ||
4163 | st = gfc_find_symtree (ns->sym_root, | |
4164 | rent->local_name[0] | |
4165 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4166 | |
4167 | /* The following can happen if a derived type is renamed. */ | |
4168 | if (!st) | |
4169 | { | |
4170 | char *name; | |
4171 | name = xstrdup (rent->local_name[0] | |
4172 | ? rent->local_name : rent->use_name); | |
4173 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4174 | st = gfc_find_symtree (ns->sym_root, name); | |
4175 | free (name); | |
4176 | gcc_assert (st); | |
4177 | } | |
857c96ba | 4178 | |
4179 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4180 | local symbol (see PR41062). */ | |
4181 | if (!st->n.sym->attr.use_assoc) | |
4182 | continue; | |
4183 | ||
51d9479b | 4184 | if (st->n.sym->backend_decl |
4185 | && DECL_P (st->n.sym->backend_decl) | |
4186 | && st->n.sym->module | |
4187 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4188 | { |
51d9479b | 4189 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4190 | || (TREE_CODE (st->n.sym->backend_decl) | |
4191 | != VAR_DECL)); | |
df4d540f | 4192 | decl = copy_node (st->n.sym->backend_decl); |
4193 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4194 | DECL_EXTERNAL (decl) = 1; | |
4195 | DECL_IGNORED_P (decl) = 0; | |
4196 | DECL_INITIAL (decl) = NULL_TREE; | |
4197 | } | |
4198 | else | |
4199 | { | |
4200 | *slot = error_mark_node; | |
4201 | htab_clear_slot (entry->decls, slot); | |
4202 | continue; | |
4203 | } | |
4204 | *slot = decl; | |
4205 | } | |
4206 | decl = (tree) *slot; | |
4207 | if (rent->local_name[0]) | |
4208 | local_name = get_identifier (rent->local_name); | |
4209 | else | |
4210 | local_name = NULL_TREE; | |
51d9479b | 4211 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4212 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4213 | ns->proc_name->backend_decl, | |
4214 | !use_stmt->only_flag); | |
4215 | } | |
4216 | } | |
4ee9c684 | 4217 | } |
4218 | ||
51d9479b | 4219 | |
2eb674c9 | 4220 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4221 | will handle. */ | |
4222 | ||
4223 | static bool | |
4224 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4225 | bool pointer) | |
4226 | { | |
4227 | gfc_constructor *c; | |
4228 | gfc_component *cm; | |
4229 | ||
4230 | if (pointer) | |
4231 | return true; | |
4232 | else if (array) | |
4233 | { | |
4234 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4235 | return true; | |
4236 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4237 | return check_constant_initializer (expr, ts, false, false); | |
4238 | else if (expr->expr_type != EXPR_ARRAY) | |
4239 | return false; | |
126387b5 | 4240 | for (c = gfc_constructor_first (expr->value.constructor); |
4241 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4242 | { |
4243 | if (c->iterator) | |
4244 | return false; | |
4245 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4246 | { | |
4247 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4248 | return false; | |
4249 | } | |
4250 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4251 | return false; | |
4252 | } | |
4253 | return true; | |
4254 | } | |
4255 | else switch (ts->type) | |
4256 | { | |
4257 | case BT_DERIVED: | |
4258 | if (expr->expr_type != EXPR_STRUCTURE) | |
4259 | return false; | |
eeebe20b | 4260 | cm = expr->ts.u.derived->components; |
126387b5 | 4261 | for (c = gfc_constructor_first (expr->value.constructor); |
4262 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4263 | { |
4264 | if (!c->expr || cm->attr.allocatable) | |
4265 | continue; | |
4266 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4267 | cm->attr.dimension, | |
4268 | cm->attr.pointer)) | |
4269 | return false; | |
4270 | } | |
4271 | return true; | |
4272 | default: | |
4273 | return expr->expr_type == EXPR_CONSTANT; | |
4274 | } | |
4275 | } | |
4276 | ||
4277 | /* Emit debug info for parameters and unreferenced variables with | |
4278 | initializers. */ | |
4279 | ||
4280 | static void | |
4281 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4282 | { | |
4283 | tree decl; | |
4284 | ||
4285 | if (sym->attr.flavor != FL_PARAMETER | |
4286 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4287 | return; | |
4288 | ||
4289 | if (sym->backend_decl != NULL | |
4290 | || sym->value == NULL | |
4291 | || sym->attr.use_assoc | |
4292 | || sym->attr.dummy | |
4293 | || sym->attr.result | |
4294 | || sym->attr.function | |
4295 | || sym->attr.intrinsic | |
4296 | || sym->attr.pointer | |
4297 | || sym->attr.allocatable | |
4298 | || sym->attr.cray_pointee | |
4299 | || sym->attr.threadprivate | |
4300 | || sym->attr.is_bind_c | |
4301 | || sym->attr.subref_array_pointer | |
4302 | || sym->attr.assign) | |
4303 | return; | |
4304 | ||
4305 | if (sym->ts.type == BT_CHARACTER) | |
4306 | { | |
eeebe20b | 4307 | gfc_conv_const_charlen (sym->ts.u.cl); |
4308 | if (sym->ts.u.cl->backend_decl == NULL | |
4309 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4310 | return; |
4311 | } | |
eeebe20b | 4312 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4313 | return; |
4314 | ||
4315 | if (sym->as) | |
4316 | { | |
4317 | int n; | |
4318 | ||
4319 | if (sym->as->type != AS_EXPLICIT) | |
4320 | return; | |
4321 | for (n = 0; n < sym->as->rank; n++) | |
4322 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4323 | || sym->as->upper[n] == NULL | |
4324 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4325 | return; | |
4326 | } | |
4327 | ||
4328 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4329 | sym->attr.dimension, false)) | |
4330 | return; | |
4331 | ||
a961ca30 | 4332 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
4333 | return; | |
4334 | ||
2eb674c9 | 4335 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4336 | decl = build_decl (input_location, |
4337 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4338 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4339 | if (sym->attr.flavor == FL_PARAMETER) | |
4340 | TREE_READONLY (decl) = 1; | |
4341 | gfc_set_decl_location (decl, &sym->declared_at); | |
4342 | if (sym->attr.dimension) | |
4343 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4344 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4345 | TREE_STATIC (decl) = 1; | |
4346 | TREE_USED (decl) = 1; | |
4347 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4348 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4349 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4350 | TREE_TYPE (decl), | |
4351 | sym->attr.dimension, | |
4352 | false, false); | |
2eb674c9 | 4353 | debug_hooks->global_decl (decl); |
4354 | } | |
4355 | ||
a961ca30 | 4356 | |
4357 | static void | |
4358 | generate_coarray_sym_init (gfc_symbol *sym) | |
4359 | { | |
4360 | tree tmp, size, decl, token; | |
4361 | ||
4362 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
a90fe829 | 4363 | || sym->attr.use_assoc || !sym->attr.referenced) |
a961ca30 | 4364 | return; |
4365 | ||
4366 | decl = sym->backend_decl; | |
4367 | TREE_USED(decl) = 1; | |
4368 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4369 | ||
4370 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 | |
4371 | to make sure the variable is not optimized away. */ | |
4372 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4373 | ||
4374 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
4375 | ||
a90fe829 | 4376 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 4377 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
4378 | fold_convert (size_type_node, size), | |
4379 | build_int_cst (size_type_node, 1)); | |
4380 | ||
a961ca30 | 4381 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4382 | { | |
4383 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4384 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4385 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4386 | } |
4387 | ||
4388 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4389 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4390 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
4391 | ||
4392 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, | |
7b186db6 | 4393 | build_int_cst (integer_type_node, |
4f5fe475 | 4394 | GFC_CAF_COARRAY_STATIC), /* type. */ |
a961ca30 | 4395 | token, null_pointer_node, /* token, stat. */ |
4396 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4397 | build_int_cst (integer_type_node, 0)); | |
a90fe829 | 4398 | |
a961ca30 | 4399 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); |
4400 | ||
4401 | ||
4402 | /* Handle "static" initializer. */ | |
4403 | if (sym->value) | |
4404 | { | |
4405 | sym->attr.pointer = 1; | |
4406 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4407 | true, false); | |
4408 | sym->attr.pointer = 0; | |
4409 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4410 | } | |
4411 | } | |
4412 | ||
4413 | ||
4414 | /* Generate constructor function to initialize static, nonallocatable | |
4415 | coarrays. */ | |
4416 | ||
4417 | static void | |
4418 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4419 | { | |
4420 | tree fndecl, tmp, decl, save_fn_decl; | |
4421 | ||
4422 | save_fn_decl = current_function_decl; | |
4423 | push_function_context (); | |
4424 | ||
4425 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4426 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4427 | create_tmp_var_name ("_caf_init"), tmp); | |
4428 | ||
4429 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4430 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4431 | ||
4432 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4433 | DECL_ARTIFICIAL (decl) = 1; | |
4434 | DECL_IGNORED_P (decl) = 1; | |
4435 | DECL_CONTEXT (decl) = fndecl; | |
4436 | DECL_RESULT (fndecl) = decl; | |
4437 | ||
4438 | pushdecl (fndecl); | |
4439 | current_function_decl = fndecl; | |
4440 | announce_function (fndecl); | |
4441 | ||
4442 | rest_of_decl_compilation (fndecl, 0, 0); | |
4443 | make_decl_rtl (fndecl); | |
00cf115c | 4444 | allocate_struct_function (fndecl, false); |
a961ca30 | 4445 | |
cde2be84 | 4446 | pushlevel (); |
a961ca30 | 4447 | gfc_init_block (&caf_init_block); |
4448 | ||
4449 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
4450 | ||
4451 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
4452 | decl = getdecls (); | |
4453 | ||
cde2be84 | 4454 | poplevel (1, 1); |
a961ca30 | 4455 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
4456 | ||
4457 | DECL_SAVED_TREE (fndecl) | |
4458 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
4459 | DECL_INITIAL (fndecl)); | |
4460 | dump_function (TDI_original, fndecl); | |
4461 | ||
4462 | cfun->function_end_locus = input_location; | |
4463 | set_cfun (NULL); | |
4464 | ||
4465 | if (decl_function_context (fndecl)) | |
4466 | (void) cgraph_create_node (fndecl); | |
4467 | else | |
4468 | cgraph_finalize_function (fndecl, true); | |
4469 | ||
4470 | pop_function_context (); | |
4471 | current_function_decl = save_fn_decl; | |
4472 | } | |
4473 | ||
4474 | ||
51d9479b | 4475 | /* Generate all the required code for module variables. */ |
4476 | ||
4477 | void | |
4478 | gfc_generate_module_vars (gfc_namespace * ns) | |
4479 | { | |
4480 | module_namespace = ns; | |
4481 | cur_module = gfc_find_module (ns->proc_name->name); | |
4482 | ||
4483 | /* Check if the frontend left the namespace in a reasonable state. */ | |
4484 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
4485 | ||
4486 | /* Generate COMMON blocks. */ | |
4487 | gfc_trans_common (ns); | |
4488 | ||
a961ca30 | 4489 | has_coarray_vars = false; |
4490 | ||
51d9479b | 4491 | /* Create decls for all the module variables. */ |
4492 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
4493 | ||
a961ca30 | 4494 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
4495 | generate_coarray_init (ns); | |
4496 | ||
51d9479b | 4497 | cur_module = NULL; |
4498 | ||
4499 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 4500 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 4501 | } |
4502 | ||
4503 | ||
4ee9c684 | 4504 | static void |
4505 | gfc_generate_contained_functions (gfc_namespace * parent) | |
4506 | { | |
4507 | gfc_namespace *ns; | |
4508 | ||
4509 | /* We create all the prototypes before generating any code. */ | |
4510 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4511 | { | |
4512 | /* Skip namespaces from used modules. */ | |
4513 | if (ns->parent != parent) | |
4514 | continue; | |
4515 | ||
d896f9b3 | 4516 | gfc_create_function_decl (ns, false); |
4ee9c684 | 4517 | } |
4518 | ||
4519 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4520 | { | |
4521 | /* Skip namespaces from used modules. */ | |
4522 | if (ns->parent != parent) | |
4523 | continue; | |
4524 | ||
4525 | gfc_generate_function_code (ns); | |
4526 | } | |
4527 | } | |
4528 | ||
4529 | ||
d95efb59 | 4530 | /* Drill down through expressions for the array specification bounds and |
4531 | character length calling generate_local_decl for all those variables | |
4532 | that have not already been declared. */ | |
4533 | ||
4534 | static void | |
4535 | generate_local_decl (gfc_symbol *); | |
4536 | ||
1acb400a | 4537 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 4538 | |
1acb400a | 4539 | static bool |
4540 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
4541 | int *f ATTRIBUTE_UNUSED) | |
4542 | { | |
4543 | if (e->expr_type != EXPR_VARIABLE | |
4544 | || sym == e->symtree->n.sym | |
d95efb59 | 4545 | || e->symtree->n.sym->mark |
4546 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 4547 | return false; |
d95efb59 | 4548 | |
1acb400a | 4549 | generate_local_decl (e->symtree->n.sym); |
4550 | return false; | |
4551 | } | |
d95efb59 | 4552 | |
1acb400a | 4553 | static void |
4554 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
4555 | { | |
4556 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 4557 | } |
4558 | ||
4559 | ||
f6d0e37a | 4560 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 4561 | |
4562 | static void | |
4563 | generate_dependency_declarations (gfc_symbol *sym) | |
4564 | { | |
4565 | int i; | |
4566 | ||
4567 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 4568 | && sym->ts.u.cl |
4569 | && sym->ts.u.cl->length | |
4570 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
4571 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 4572 | |
4573 | if (sym->as && sym->as->rank) | |
4574 | { | |
4575 | for (i = 0; i < sym->as->rank; i++) | |
4576 | { | |
4577 | generate_expr_decls (sym, sym->as->lower[i]); | |
4578 | generate_expr_decls (sym, sym->as->upper[i]); | |
4579 | } | |
4580 | } | |
4581 | } | |
4582 | ||
4583 | ||
4ee9c684 | 4584 | /* Generate decls for all local variables. We do this to ensure correct |
4585 | handling of expressions which only appear in the specification of | |
4586 | other functions. */ | |
4587 | ||
4588 | static void | |
4589 | generate_local_decl (gfc_symbol * sym) | |
4590 | { | |
4591 | if (sym->attr.flavor == FL_VARIABLE) | |
4592 | { | |
a961ca30 | 4593 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
4594 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4595 | has_coarray_vars = true; | |
4596 | ||
d95efb59 | 4597 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 4598 | generate_dependency_declarations (sym); |
d95efb59 | 4599 | |
4ee9c684 | 4600 | if (sym->attr.referenced) |
8714fc76 | 4601 | gfc_get_symbol_decl (sym); |
4acad347 | 4602 | |
4603 | /* Warnings for unused dummy arguments. */ | |
4604 | else if (sym->attr.dummy) | |
7c0ca46e | 4605 | { |
4acad347 | 4606 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
4607 | if (gfc_option.warn_unused_dummy_argument | |
4608 | && sym->attr.intent == INTENT_OUT) | |
4609 | { | |
4610 | if (sym->ts.type != BT_DERIVED) | |
4611 | gfc_warning ("Dummy argument '%s' at %L was declared " | |
4612 | "INTENT(OUT) but was not set", sym->name, | |
4613 | &sym->declared_at); | |
4614 | else if (!gfc_has_default_initializer (sym->ts.u.derived)) | |
4615 | gfc_warning ("Derived-type dummy argument '%s' at %L was " | |
4616 | "declared INTENT(OUT) but was not set and " | |
4617 | "does not have a default initializer", | |
4618 | sym->name, &sym->declared_at); | |
90a4a5a6 | 4619 | if (sym->backend_decl != NULL_TREE) |
4620 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 4621 | } |
4622 | else if (gfc_option.warn_unused_dummy_argument) | |
90a4a5a6 | 4623 | { |
4624 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
4acad347 | 4625 | &sym->declared_at); |
90a4a5a6 | 4626 | if (sym->backend_decl != NULL_TREE) |
4627 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4628 | } | |
7c0ca46e | 4629 | } |
4acad347 | 4630 | |
f888a3fb | 4631 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 4632 | block or a namelist. */ |
36609028 | 4633 | else if (warn_unused_variable |
1dbfac29 | 4634 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 4635 | { |
1dbfac29 | 4636 | if (sym->attr.use_only) |
4637 | { | |
4638 | gfc_warning ("Unused module variable '%s' which has been " | |
4639 | "explicitly imported at %L", sym->name, | |
4640 | &sym->declared_at); | |
4641 | if (sym->backend_decl != NULL_TREE) | |
4642 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4643 | } | |
4644 | else if (!sym->attr.use_assoc) | |
4645 | { | |
4646 | gfc_warning ("Unused variable '%s' declared at %L", | |
4647 | sym->name, &sym->declared_at); | |
4648 | if (sym->backend_decl != NULL_TREE) | |
4649 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4650 | } | |
90a4a5a6 | 4651 | } |
8714fc76 | 4652 | |
d4163395 | 4653 | /* For variable length CHARACTER parameters, the PARM_DECL already |
4654 | references the length variable, so force gfc_get_symbol_decl | |
4655 | even when not referenced. If optimize > 0, it will be optimized | |
4656 | away anyway. But do this only after emitting -Wunused-parameter | |
4657 | warning if requested. */ | |
8714fc76 | 4658 | if (sym->attr.dummy && !sym->attr.referenced |
4659 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 4660 | && sym->ts.u.cl->backend_decl != NULL |
4661 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 4662 | { |
4663 | sym->attr.referenced = 1; | |
4664 | gfc_get_symbol_decl (sym); | |
4665 | } | |
76776e6d | 4666 | |
d0163401 | 4667 | /* INTENT(out) dummy arguments and result variables with allocatable |
4668 | components are reset by default and need to be set referenced to | |
4669 | generate the code for nullification and automatic lengths. */ | |
4670 | if (!sym->attr.referenced | |
8714fc76 | 4671 | && sym->ts.type == BT_DERIVED |
eeebe20b | 4672 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 4673 | && !sym->attr.pointer |
d0163401 | 4674 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
4675 | || | |
4676 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 4677 | { |
4678 | sym->attr.referenced = 1; | |
4679 | gfc_get_symbol_decl (sym); | |
4680 | } | |
4681 | ||
e72f979a | 4682 | /* Check for dependencies in the array specification and string |
4683 | length, adding the necessary declarations to the function. We | |
4684 | mark the symbol now, as well as in traverse_ns, to prevent | |
4685 | getting stuck in a circular dependency. */ | |
4686 | sym->mark = 1; | |
4ee9c684 | 4687 | } |
5dd246c1 | 4688 | else if (sym->attr.flavor == FL_PARAMETER) |
4689 | { | |
6ecfe89d | 4690 | if (warn_unused_parameter |
f326eb81 | 4691 | && !sym->attr.referenced) |
4692 | { | |
4693 | if (!sym->attr.use_assoc) | |
4694 | gfc_warning ("Unused parameter '%s' declared at %L", sym->name, | |
4695 | &sym->declared_at); | |
4696 | else if (sym->attr.use_only) | |
4697 | gfc_warning ("Unused parameter '%s' which has been explicitly " | |
4698 | "imported at %L", sym->name, &sym->declared_at); | |
4699 | } | |
5dd246c1 | 4700 | } |
fa7b6574 | 4701 | else if (sym->attr.flavor == FL_PROCEDURE) |
4702 | { | |
4703 | /* TODO: move to the appropriate place in resolve.c. */ | |
4704 | if (warn_return_type | |
4705 | && sym->attr.function | |
4706 | && sym->result | |
4707 | && sym != sym->result | |
4708 | && !sym->result->attr.referenced | |
4709 | && !sym->attr.use_assoc | |
4710 | && sym->attr.if_source != IFSRC_IFBODY) | |
4711 | { | |
4712 | gfc_warning ("Return value '%s' of function '%s' declared at " | |
4713 | "%L not set", sym->result->name, sym->name, | |
4714 | &sym->result->declared_at); | |
4715 | ||
4716 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 4717 | sym->result->mark = 1; |
fa7b6574 | 4718 | } |
4719 | } | |
c5d33754 | 4720 | |
19ba2ad8 | 4721 | if (sym->attr.dummy == 1) |
4722 | { | |
4723 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
4724 | procedures if they are passed by value. The tree type for them will | |
4725 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
4726 | what C would do with characters passed by-value. The value attribute | |
4727 | implies the dummy is a scalar. */ | |
4728 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
4729 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
4730 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 4731 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 4732 | |
4733 | /* Unused procedure passed as dummy argument. */ | |
4734 | if (sym->attr.flavor == FL_PROCEDURE) | |
4735 | { | |
4736 | if (!sym->attr.referenced) | |
4737 | { | |
4738 | if (gfc_option.warn_unused_dummy_argument) | |
4739 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
a90fe829 | 4740 | &sym->declared_at); |
fc6338c7 | 4741 | } |
4742 | ||
4743 | /* Silence bogus "unused parameter" warnings from the | |
4744 | middle end. */ | |
4745 | if (sym->backend_decl != NULL_TREE) | |
4746 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
4747 | } | |
19ba2ad8 | 4748 | } |
4749 | ||
c5d33754 | 4750 | /* Make sure we convert the types of the derived types from iso_c_binding |
4751 | into (void *). */ | |
4752 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4753 | && sym->ts.type == BT_DERIVED) | |
4754 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 4755 | } |
4756 | ||
4757 | static void | |
4758 | generate_local_vars (gfc_namespace * ns) | |
4759 | { | |
4760 | gfc_traverse_ns (ns, generate_local_decl); | |
4761 | } | |
4762 | ||
4763 | ||
1b716045 | 4764 | /* Generate a switch statement to jump to the correct entry point. Also |
4765 | creates the label decls for the entry points. */ | |
4ee9c684 | 4766 | |
1b716045 | 4767 | static tree |
4768 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 4769 | { |
1b716045 | 4770 | stmtblock_t block; |
4771 | tree label; | |
4772 | tree tmp; | |
4773 | tree val; | |
4ee9c684 | 4774 | |
1b716045 | 4775 | gfc_init_block (&block); |
4776 | for (; el; el = el->next) | |
4777 | { | |
4778 | /* Add the case label. */ | |
b797d6d3 | 4779 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 4780 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 4781 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 4782 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 4783 | |
1b716045 | 4784 | /* And jump to the actual entry point. */ |
4785 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 4786 | tmp = build1_v (GOTO_EXPR, label); |
4787 | gfc_add_expr_to_block (&block, tmp); | |
4788 | ||
4789 | /* Save the label decl. */ | |
4790 | el->label = label; | |
4791 | } | |
4792 | tmp = gfc_finish_block (&block); | |
4793 | /* The first argument selects the entry point. */ | |
4794 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 4795 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
4796 | val, tmp, NULL_TREE); | |
1b716045 | 4797 | return tmp; |
4ee9c684 | 4798 | } |
4799 | ||
6374121b | 4800 | |
a4abf8a0 | 4801 | /* Add code to string lengths of actual arguments passed to a function against |
4802 | the expected lengths of the dummy arguments. */ | |
4803 | ||
4804 | static void | |
4805 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
4806 | { | |
4807 | gfc_formal_arglist *formal; | |
4808 | ||
6777213b | 4809 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 4810 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 4811 | && !formal->sym->ts.deferred) |
a4abf8a0 | 4812 | { |
4813 | enum tree_code comparison; | |
4814 | tree cond; | |
4815 | tree argname; | |
4816 | gfc_symbol *fsym; | |
4817 | gfc_charlen *cl; | |
4818 | const char *message; | |
4819 | ||
4820 | fsym = formal->sym; | |
eeebe20b | 4821 | cl = fsym->ts.u.cl; |
a4abf8a0 | 4822 | |
4823 | gcc_assert (cl); | |
4824 | gcc_assert (cl->passed_length != NULL_TREE); | |
4825 | gcc_assert (cl->backend_decl != NULL_TREE); | |
4826 | ||
4827 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
4828 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 4829 | that the actual string length is *at least* the expected one. |
4830 | Sequence association allows for a mismatch of the string length | |
4831 | if the actual argument is (part of) an array, but only if the | |
4832 | dummy argument is an array. (See "Sequence association" in | |
4833 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 4834 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 4835 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
4836 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 4837 | { |
4838 | comparison = NE_EXPR; | |
4839 | message = _("Actual string length does not match the declared one" | |
4840 | " for dummy argument '%s' (%ld/%ld)"); | |
4841 | } | |
be4be771 | 4842 | else if (fsym->as && fsym->as->rank != 0) |
4843 | continue; | |
a4abf8a0 | 4844 | else |
4845 | { | |
4846 | comparison = LT_EXPR; | |
4847 | message = _("Actual string length is shorter than the declared one" | |
4848 | " for dummy argument '%s' (%ld/%ld)"); | |
4849 | } | |
4850 | ||
4851 | /* Build the condition. For optional arguments, an actual length | |
4852 | of 0 is also acceptable if the associated string is NULL, which | |
4853 | means the argument was not passed. */ | |
fd779e1d | 4854 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
4855 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 4856 | if (fsym->attr.optional) |
4857 | { | |
4858 | tree not_absent; | |
4859 | tree not_0length; | |
4860 | tree absent_failed; | |
4861 | ||
fd779e1d | 4862 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4863 | boolean_type_node, | |
4864 | cl->passed_length, | |
385f3f36 | 4865 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 4866 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
4867 | fsym->attr.referenced = 1; | |
4868 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 4869 | |
fd779e1d | 4870 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4871 | boolean_type_node, not_0length, | |
4872 | not_absent); | |
a4abf8a0 | 4873 | |
fd779e1d | 4874 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4875 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 4876 | } |
4877 | ||
4878 | /* Build the runtime check. */ | |
4879 | argname = gfc_build_cstring_const (fsym->name); | |
4880 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
4881 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
4882 | message, argname, | |
4883 | fold_convert (long_integer_type_node, | |
4884 | cl->passed_length), | |
4885 | fold_convert (long_integer_type_node, | |
4886 | cl->backend_decl)); | |
4887 | } | |
4888 | } | |
4889 | ||
4890 | ||
642970a3 | 4891 | /* Generate the _gfortran_caf_this_image and _gfortran_caf_num_images |
4892 | global variables for -fcoarray=lib. They are placed into the translation | |
4893 | unit of the main program. Make sure that in one TU (the one of the main | |
4894 | program), the first call to gfc_init_coarray_decl is done with true. | |
4895 | Otherwise, expect link errors. */ | |
4896 | ||
70b5944a | 4897 | void |
642970a3 | 4898 | gfc_init_coarray_decl (bool main_tu) |
70b5944a | 4899 | { |
70b5944a | 4900 | if (gfc_option.coarray != GFC_FCOARRAY_LIB) |
4901 | return; | |
4902 | ||
4903 | if (gfort_gvar_caf_this_image || gfort_gvar_caf_num_images) | |
4904 | return; | |
4905 | ||
70b5944a | 4906 | push_cfun (cfun); |
4907 | ||
642970a3 | 4908 | gfort_gvar_caf_this_image |
4909 | = build_decl (input_location, VAR_DECL, | |
4910 | get_identifier (PREFIX("caf_this_image")), | |
4911 | integer_type_node); | |
70b5944a | 4912 | DECL_ARTIFICIAL (gfort_gvar_caf_this_image) = 1; |
4913 | TREE_USED (gfort_gvar_caf_this_image) = 1; | |
4914 | TREE_PUBLIC (gfort_gvar_caf_this_image) = 1; | |
642970a3 | 4915 | TREE_READONLY (gfort_gvar_caf_this_image) = 0; |
4916 | ||
4917 | if (main_tu) | |
4918 | TREE_STATIC (gfort_gvar_caf_this_image) = 1; | |
4919 | else | |
4920 | DECL_EXTERNAL (gfort_gvar_caf_this_image) = 1; | |
4921 | ||
4922 | pushdecl_top_level (gfort_gvar_caf_this_image); | |
70b5944a | 4923 | |
642970a3 | 4924 | gfort_gvar_caf_num_images |
4925 | = build_decl (input_location, VAR_DECL, | |
4926 | get_identifier (PREFIX("caf_num_images")), | |
4927 | integer_type_node); | |
70b5944a | 4928 | DECL_ARTIFICIAL (gfort_gvar_caf_num_images) = 1; |
4929 | TREE_USED (gfort_gvar_caf_num_images) = 1; | |
4930 | TREE_PUBLIC (gfort_gvar_caf_num_images) = 1; | |
642970a3 | 4931 | TREE_READONLY (gfort_gvar_caf_num_images) = 0; |
4932 | ||
4933 | if (main_tu) | |
4934 | TREE_STATIC (gfort_gvar_caf_num_images) = 1; | |
4935 | else | |
4936 | DECL_EXTERNAL (gfort_gvar_caf_num_images) = 1; | |
4937 | ||
4938 | pushdecl_top_level (gfort_gvar_caf_num_images); | |
70b5944a | 4939 | |
4940 | pop_cfun (); | |
70b5944a | 4941 | } |
4942 | ||
4943 | ||
7257a5d2 | 4944 | static void |
4945 | create_main_function (tree fndecl) | |
4946 | { | |
43702da6 | 4947 | tree old_context; |
7257a5d2 | 4948 | tree ftn_main; |
4949 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
4950 | stmtblock_t body; | |
4951 | ||
43702da6 | 4952 | old_context = current_function_decl; |
4953 | ||
4954 | if (old_context) | |
4955 | { | |
4956 | push_function_context (); | |
4957 | saved_parent_function_decls = saved_function_decls; | |
4958 | saved_function_decls = NULL_TREE; | |
4959 | } | |
4960 | ||
7257a5d2 | 4961 | /* main() function must be declared with global scope. */ |
4962 | gcc_assert (current_function_decl == NULL_TREE); | |
4963 | ||
4964 | /* Declare the function. */ | |
4965 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
4966 | build_pointer_type (pchar_type_node), | |
4967 | NULL_TREE); | |
0509d0ee | 4968 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 4969 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
4970 | main_identifier_node, tmp); | |
7257a5d2 | 4971 | DECL_EXTERNAL (ftn_main) = 0; |
4972 | TREE_PUBLIC (ftn_main) = 1; | |
4973 | TREE_STATIC (ftn_main) = 1; | |
4974 | DECL_ATTRIBUTES (ftn_main) | |
4975 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
4976 | ||
4977 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 4978 | result_decl = build_decl (input_location, |
4979 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 4980 | DECL_ARTIFICIAL (result_decl) = 1; |
4981 | DECL_IGNORED_P (result_decl) = 1; | |
4982 | DECL_CONTEXT (result_decl) = ftn_main; | |
4983 | DECL_RESULT (ftn_main) = result_decl; | |
4984 | ||
4985 | pushdecl (ftn_main); | |
4986 | ||
4987 | /* Get the arguments. */ | |
4988 | ||
4989 | arglist = NULL_TREE; | |
4990 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
4991 | ||
4992 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 4993 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 4994 | DECL_CONTEXT (argc) = ftn_main; |
4995 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
4996 | TREE_READONLY (argc) = 1; | |
4997 | gfc_finish_decl (argc); | |
4998 | arglist = chainon (arglist, argc); | |
4999 | ||
5000 | typelist = TREE_CHAIN (typelist); | |
5001 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5002 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5003 | DECL_CONTEXT (argv) = ftn_main; |
5004 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5005 | TREE_READONLY (argv) = 1; | |
5006 | DECL_BY_REFERENCE (argv) = 1; | |
5007 | gfc_finish_decl (argv); | |
5008 | arglist = chainon (arglist, argv); | |
5009 | ||
5010 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5011 | current_function_decl = ftn_main; | |
5012 | announce_function (ftn_main); | |
5013 | ||
5014 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5015 | make_decl_rtl (ftn_main); | |
00cf115c | 5016 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5017 | pushlevel (); |
7257a5d2 | 5018 | |
5019 | gfc_init_block (&body); | |
5020 | ||
5021 | /* Call some libgfortran initialization routines, call then MAIN__(). */ | |
5022 | ||
70b5944a | 5023 | /* Call _gfortran_caf_init (*argc, ***argv, *this_image, *num_images). */ |
5024 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
5025 | { | |
5026 | tree pint_type, pppchar_type; | |
5027 | pint_type = build_pointer_type (integer_type_node); | |
5028 | pppchar_type | |
5029 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5030 | ||
642970a3 | 5031 | gfc_init_coarray_decl (true); |
70b5944a | 5032 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 4, |
5033 | gfc_build_addr_expr (pint_type, argc), | |
5034 | gfc_build_addr_expr (pppchar_type, argv), | |
5035 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_this_image), | |
5036 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_num_images)); | |
5037 | gfc_add_expr_to_block (&body, tmp); | |
5038 | } | |
5039 | ||
7257a5d2 | 5040 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5041 | TREE_USED (argc) = 1; |
5042 | TREE_USED (argv) = 1; | |
389dd41b | 5043 | tmp = build_call_expr_loc (input_location, |
5044 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5045 | gfc_add_expr_to_block (&body, tmp); |
5046 | ||
5047 | /* Add a call to set_options to set up the runtime library Fortran | |
5048 | language standard parameters. */ | |
5049 | { | |
5050 | tree array_type, array, var; | |
f1f41a6c | 5051 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5052 | |
5053 | /* Passing a new option to the library requires four modifications: | |
5054 | + add it to the tree_cons list below | |
5055 | + change the array size in the call to build_array_type | |
5056 | + change the first argument to the library call | |
5057 | gfor_fndecl_set_options | |
5058 | + modify the library (runtime/compile_options.c)! */ | |
5059 | ||
06f13dc1 | 5060 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5061 | build_int_cst (integer_type_node, | |
5062 | gfc_option.warn_std)); | |
5063 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5064 | build_int_cst (integer_type_node, | |
5065 | gfc_option.allow_std)); | |
5066 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5067 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5068 | /* TODO: This is the old -fdump-core option, which is unused but |
5069 | passed due to ABI compatibility; remove when bumping the | |
5070 | library ABI. */ | |
06f13dc1 | 5071 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5072 | build_int_cst (integer_type_node, | |
b2130263 | 5073 | 0)); |
06f13dc1 | 5074 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5075 | build_int_cst (integer_type_node, | |
5076 | gfc_option.flag_backtrace)); | |
5077 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5078 | build_int_cst (integer_type_node, | |
5079 | gfc_option.flag_sign_zero)); | |
5080 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5081 | build_int_cst (integer_type_node, | |
5082 | (gfc_option.rtcheck | |
5083 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5084 | /* TODO: This is the -frange-check option, which no longer affects |
5085 | library behavior; when bumping the library ABI this slot can be | |
5086 | reused for something else. As it is the last element in the | |
5087 | array, we can instead leave it out altogether. | |
06f13dc1 | 5088 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5089 | build_int_cst (integer_type_node, | |
5090 | gfc_option.flag_range_check)); | |
7f4f15dc | 5091 | */ |
7257a5d2 | 5092 | |
5093 | array_type = build_array_type (integer_type_node, | |
7f4f15dc | 5094 | build_index_type (size_int (6))); |
06f13dc1 | 5095 | array = build_constructor (array_type, v); |
7257a5d2 | 5096 | TREE_CONSTANT (array) = 1; |
5097 | TREE_STATIC (array) = 1; | |
5098 | ||
5099 | /* Create a static variable to hold the jump table. */ | |
5100 | var = gfc_create_var (array_type, "options"); | |
5101 | TREE_CONSTANT (var) = 1; | |
5102 | TREE_STATIC (var) = 1; | |
5103 | TREE_READONLY (var) = 1; | |
5104 | DECL_INITIAL (var) = array; | |
5105 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); | |
5106 | ||
389dd41b | 5107 | tmp = build_call_expr_loc (input_location, |
5108 | gfor_fndecl_set_options, 2, | |
7f4f15dc | 5109 | build_int_cst (integer_type_node, 7), var); |
7257a5d2 | 5110 | gfc_add_expr_to_block (&body, tmp); |
5111 | } | |
5112 | ||
5113 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5114 | the library will raise a FPE when needed. */ | |
5115 | if (gfc_option.fpe != 0) | |
5116 | { | |
389dd41b | 5117 | tmp = build_call_expr_loc (input_location, |
5118 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5119 | build_int_cst (integer_type_node, |
5120 | gfc_option.fpe)); | |
5121 | gfc_add_expr_to_block (&body, tmp); | |
5122 | } | |
5123 | ||
5124 | /* If this is the main program and an -fconvert option was provided, | |
5125 | add a call to set_convert. */ | |
5126 | ||
5127 | if (gfc_option.convert != GFC_CONVERT_NATIVE) | |
5128 | { | |
389dd41b | 5129 | tmp = build_call_expr_loc (input_location, |
5130 | gfor_fndecl_set_convert, 1, | |
7257a5d2 | 5131 | build_int_cst (integer_type_node, |
5132 | gfc_option.convert)); | |
5133 | gfc_add_expr_to_block (&body, tmp); | |
5134 | } | |
5135 | ||
5136 | /* If this is the main program and an -frecord-marker option was provided, | |
5137 | add a call to set_record_marker. */ | |
5138 | ||
5139 | if (gfc_option.record_marker != 0) | |
5140 | { | |
389dd41b | 5141 | tmp = build_call_expr_loc (input_location, |
5142 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5143 | build_int_cst (integer_type_node, |
5144 | gfc_option.record_marker)); | |
5145 | gfc_add_expr_to_block (&body, tmp); | |
5146 | } | |
5147 | ||
5148 | if (gfc_option.max_subrecord_length != 0) | |
5149 | { | |
389dd41b | 5150 | tmp = build_call_expr_loc (input_location, |
5151 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5152 | build_int_cst (integer_type_node, |
5153 | gfc_option.max_subrecord_length)); | |
5154 | gfc_add_expr_to_block (&body, tmp); | |
5155 | } | |
5156 | ||
5157 | /* Call MAIN__(). */ | |
389dd41b | 5158 | tmp = build_call_expr_loc (input_location, |
5159 | fndecl, 0); | |
7257a5d2 | 5160 | gfc_add_expr_to_block (&body, tmp); |
5161 | ||
43702da6 | 5162 | /* Mark MAIN__ as used. */ |
5163 | TREE_USED (fndecl) = 1; | |
5164 | ||
70b5944a | 5165 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
5166 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
a90fe829 | 5167 | { |
70b5944a | 5168 | /* Per F2008, 8.5.1 END of the main program implies a |
a90fe829 | 5169 | SYNC MEMORY. */ |
b9a16870 | 5170 | tmp = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
70b5944a | 5171 | tmp = build_call_expr_loc (input_location, tmp, 0); |
5172 | gfc_add_expr_to_block (&body, tmp); | |
5173 | ||
5174 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); | |
5175 | gfc_add_expr_to_block (&body, tmp); | |
5176 | } | |
5177 | ||
7257a5d2 | 5178 | /* "return 0". */ |
fd779e1d | 5179 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5180 | DECL_RESULT (ftn_main), | |
5181 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5182 | tmp = build1_v (RETURN_EXPR, tmp); |
5183 | gfc_add_expr_to_block (&body, tmp); | |
5184 | ||
5185 | ||
5186 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5187 | decl = getdecls (); | |
5188 | ||
5189 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5190 | poplevel (1, 1); |
7257a5d2 | 5191 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5192 | ||
5193 | DECL_SAVED_TREE (ftn_main) | |
5194 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5195 | DECL_INITIAL (ftn_main)); | |
5196 | ||
5197 | /* Output the GENERIC tree. */ | |
5198 | dump_function (TDI_original, ftn_main); | |
5199 | ||
bb982f66 | 5200 | cgraph_finalize_function (ftn_main, true); |
43702da6 | 5201 | |
5202 | if (old_context) | |
5203 | { | |
5204 | pop_function_context (); | |
5205 | saved_function_decls = saved_parent_function_decls; | |
5206 | } | |
5207 | current_function_decl = old_context; | |
7257a5d2 | 5208 | } |
5209 | ||
5210 | ||
89ac8ba1 | 5211 | /* Get the result expression for a procedure. */ |
5212 | ||
5213 | static tree | |
5214 | get_proc_result (gfc_symbol* sym) | |
5215 | { | |
5216 | if (sym->attr.subroutine || sym == sym->result) | |
5217 | { | |
5218 | if (current_fake_result_decl != NULL) | |
5219 | return TREE_VALUE (current_fake_result_decl); | |
5220 | ||
5221 | return NULL_TREE; | |
5222 | } | |
5223 | ||
5224 | return sym->result->backend_decl; | |
5225 | } | |
5226 | ||
5227 | ||
5228 | /* Generate an appropriate return-statement for a procedure. */ | |
5229 | ||
5230 | tree | |
5231 | gfc_generate_return (void) | |
5232 | { | |
5233 | gfc_symbol* sym; | |
5234 | tree result; | |
5235 | tree fndecl; | |
5236 | ||
5237 | sym = current_procedure_symbol; | |
5238 | fndecl = sym->backend_decl; | |
5239 | ||
5240 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5241 | result = NULL_TREE; | |
5242 | else | |
5243 | { | |
5244 | result = get_proc_result (sym); | |
5245 | ||
5246 | /* Set the return value to the dummy result variable. The | |
5247 | types may be different for scalar default REAL functions | |
5248 | with -ff2c, therefore we have to convert. */ | |
5249 | if (result != NULL_TREE) | |
5250 | { | |
5251 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5252 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5253 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5254 | result); | |
89ac8ba1 | 5255 | } |
5256 | } | |
5257 | ||
5258 | return build1_v (RETURN_EXPR, result); | |
5259 | } | |
5260 | ||
5261 | ||
4ee9c684 | 5262 | /* Generate code for a function. */ |
5263 | ||
5264 | void | |
5265 | gfc_generate_function_code (gfc_namespace * ns) | |
5266 | { | |
5267 | tree fndecl; | |
5268 | tree old_context; | |
5269 | tree decl; | |
5270 | tree tmp; | |
89ac8ba1 | 5271 | stmtblock_t init, cleanup; |
4ee9c684 | 5272 | stmtblock_t body; |
89ac8ba1 | 5273 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5274 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5275 | gfc_symbol *sym; |
89ac8ba1 | 5276 | gfc_symbol *previous_procedure_symbol; |
2294b616 | 5277 | int rank; |
e50e62f5 | 5278 | bool is_recursive; |
4ee9c684 | 5279 | |
5280 | sym = ns->proc_name; | |
89ac8ba1 | 5281 | previous_procedure_symbol = current_procedure_symbol; |
5282 | current_procedure_symbol = sym; | |
1b716045 | 5283 | |
4ee9c684 | 5284 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5285 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5286 | sym->tlink = sym; |
5287 | ||
5288 | /* Create the declaration for functions with global scope. */ | |
5289 | if (!sym->backend_decl) | |
d896f9b3 | 5290 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5291 | |
5292 | fndecl = sym->backend_decl; | |
5293 | old_context = current_function_decl; | |
5294 | ||
5295 | if (old_context) | |
5296 | { | |
5297 | push_function_context (); | |
5298 | saved_parent_function_decls = saved_function_decls; | |
5299 | saved_function_decls = NULL_TREE; | |
5300 | } | |
5301 | ||
1b716045 | 5302 | trans_function_start (sym); |
4ee9c684 | 5303 | |
89ac8ba1 | 5304 | gfc_init_block (&init); |
4ee9c684 | 5305 | |
c6871095 | 5306 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
5307 | { | |
5308 | /* Copy length backend_decls to all entry point result | |
5309 | symbols. */ | |
5310 | gfc_entry_list *el; | |
5311 | tree backend_decl; | |
5312 | ||
eeebe20b | 5313 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
5314 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 5315 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 5316 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 5317 | } |
5318 | ||
4ee9c684 | 5319 | /* Translate COMMON blocks. */ |
5320 | gfc_trans_common (ns); | |
5321 | ||
c750cc52 | 5322 | /* Null the parent fake result declaration if this namespace is |
5323 | a module function or an external procedures. */ | |
5324 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5325 | || ns->parent == NULL) | |
5326 | parent_fake_result_decl = NULL_TREE; | |
5327 | ||
2b685f8e | 5328 | gfc_generate_contained_functions (ns); |
5329 | ||
9579733e | 5330 | nonlocal_dummy_decls = NULL; |
5331 | nonlocal_dummy_decl_pset = NULL; | |
5332 | ||
a961ca30 | 5333 | has_coarray_vars = false; |
4ee9c684 | 5334 | generate_local_vars (ns); |
5b11d932 | 5335 | |
a961ca30 | 5336 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5337 | generate_coarray_init (ns); | |
5338 | ||
c750cc52 | 5339 | /* Keep the parent fake result declaration in module functions |
5340 | or external procedures. */ | |
5341 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5342 | || ns->parent == NULL) | |
5343 | current_fake_result_decl = parent_fake_result_decl; | |
5344 | else | |
5345 | current_fake_result_decl = NULL_TREE; | |
5346 | ||
89ac8ba1 | 5347 | is_recursive = sym->attr.recursive |
5348 | || (sym->attr.entry_master | |
5349 | && sym->ns->entries->sym->attr.recursive); | |
5350 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5351 | && !is_recursive | |
5352 | && !gfc_option.flag_recursive) | |
5353 | { | |
5354 | char * msg; | |
5355 | ||
5356 | asprintf (&msg, "Recursive call to nonrecursive procedure '%s'", | |
5357 | sym->name); | |
5358 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); | |
5359 | TREE_STATIC (recurcheckvar) = 1; | |
5360 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
5361 | gfc_add_expr_to_block (&init, recurcheckvar); | |
5362 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
5363 | &sym->declared_at, msg); | |
5364 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 5365 | free (msg); |
89ac8ba1 | 5366 | } |
4ee9c684 | 5367 | |
5368 | /* Now generate the code for the body of this function. */ | |
5369 | gfc_init_block (&body); | |
5370 | ||
5371 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 5372 | && sym->attr.subroutine) |
4ee9c684 | 5373 | { |
5374 | tree alternate_return; | |
c750cc52 | 5375 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 5376 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 5377 | } |
5378 | ||
1b716045 | 5379 | if (ns->entries) |
5380 | { | |
5381 | /* Jump to the correct entry point. */ | |
5382 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
5383 | gfc_add_expr_to_block (&body, tmp); | |
5384 | } | |
5385 | ||
a4abf8a0 | 5386 | /* If bounds-checking is enabled, generate code to check passed in actual |
5387 | arguments against the expected dummy argument attributes (e.g. string | |
5388 | lengths). */ | |
c1630d65 | 5389 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 5390 | add_argument_checking (&body, sym); |
5391 | ||
4ee9c684 | 5392 | tmp = gfc_trans_code (ns->code); |
5393 | gfc_add_expr_to_block (&body, tmp); | |
5394 | ||
4ee9c684 | 5395 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node) |
5396 | { | |
89ac8ba1 | 5397 | tree result = get_proc_result (sym); |
4ee9c684 | 5398 | |
42766cb3 | 5399 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 5400 | { |
deb7edfc | 5401 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
5402 | && sym->result == sym) | |
5403 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
5404 | null_pointer_node)); | |
42766cb3 | 5405 | else if (sym->ts.type == BT_CLASS |
5406 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 5407 | && CLASS_DATA (sym)->attr.dimension == 0 |
5408 | && sym->result == sym) | |
42766cb3 | 5409 | { |
5410 | tmp = CLASS_DATA (sym)->backend_decl; | |
5411 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
5412 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
5413 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
5414 | null_pointer_node)); | |
5415 | } | |
deb7edfc | 5416 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 5417 | && sym->ts.u.derived->attr.alloc_comp |
5418 | && !sym->attr.allocatable) | |
53169279 | 5419 | { |
5420 | rank = sym->as ? sym->as->rank : 0; | |
89ac8ba1 | 5421 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, result, rank); |
5422 | gfc_add_expr_to_block (&init, tmp); | |
53169279 | 5423 | } |
5176859a | 5424 | } |
e50e62f5 | 5425 | |
fa7b6574 | 5426 | if (result == NULL_TREE) |
5427 | { | |
5428 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 5429 | if (warn_return_type && sym == sym->result) |
fa7b6574 | 5430 | gfc_warning ("Return value of function '%s' at %L not set", |
5431 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5432 | if (warn_return_type) |
5433 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 5434 | } |
4ee9c684 | 5435 | else |
89ac8ba1 | 5436 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 5437 | } |
89ac8ba1 | 5438 | |
5439 | gfc_init_block (&cleanup); | |
5440 | ||
5441 | /* Reset recursion-check variable. */ | |
5442 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5443 | && !is_recursive | |
5ae82d58 | 5444 | && !gfc_option.gfc_flag_openmp |
89ac8ba1 | 5445 | && recurcheckvar != NULL_TREE) |
e50e62f5 | 5446 | { |
89ac8ba1 | 5447 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
5448 | recurcheckvar = NULL; | |
e50e62f5 | 5449 | } |
2294b616 | 5450 | |
89ac8ba1 | 5451 | /* Finish the function body and add init and cleanup code. */ |
5452 | tmp = gfc_finish_block (&body); | |
5453 | gfc_start_wrapped_block (&try_block, tmp); | |
5454 | /* Add code to create and cleanup arrays. */ | |
5455 | gfc_trans_deferred_vars (sym, &try_block); | |
5456 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
5457 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 5458 | |
5459 | /* Add all the decls we created during processing. */ | |
5460 | decl = saved_function_decls; | |
5461 | while (decl) | |
5462 | { | |
5463 | tree next; | |
5464 | ||
1767a056 | 5465 | next = DECL_CHAIN (decl); |
5466 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 5467 | pushdecl (decl); |
4ee9c684 | 5468 | decl = next; |
5469 | } | |
5470 | saved_function_decls = NULL_TREE; | |
5471 | ||
89ac8ba1 | 5472 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 5473 | decl = getdecls (); |
4ee9c684 | 5474 | |
5475 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5476 | poplevel (1, 1); |
4ee9c684 | 5477 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5478 | ||
e5004242 | 5479 | DECL_SAVED_TREE (fndecl) |
5480 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5481 | DECL_INITIAL (fndecl)); | |
5482 | ||
9579733e | 5483 | if (nonlocal_dummy_decls) |
5484 | { | |
5485 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
5486 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
5487 | pointer_set_destroy (nonlocal_dummy_decl_pset); | |
5488 | nonlocal_dummy_decls = NULL; | |
5489 | nonlocal_dummy_decl_pset = NULL; | |
5490 | } | |
5491 | ||
4ee9c684 | 5492 | /* Output the GENERIC tree. */ |
5493 | dump_function (TDI_original, fndecl); | |
5494 | ||
5495 | /* Store the end of the function, so that we get good line number | |
5496 | info for the epilogue. */ | |
5497 | cfun->function_end_locus = input_location; | |
5498 | ||
5499 | /* We're leaving the context of this function, so zap cfun. | |
5500 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
5501 | tree_rest_of_compilation. */ | |
87d4aa85 | 5502 | set_cfun (NULL); |
4ee9c684 | 5503 | |
5504 | if (old_context) | |
5505 | { | |
5506 | pop_function_context (); | |
5507 | saved_function_decls = saved_parent_function_decls; | |
5508 | } | |
5509 | current_function_decl = old_context; | |
5510 | ||
8b01dcb7 | 5511 | if (decl_function_context (fndecl) && gfc_option.coarray != GFC_FCOARRAY_LIB |
a961ca30 | 5512 | && has_coarray_vars) |
6374121b | 5513 | /* Register this function with cgraph just far enough to get it |
a961ca30 | 5514 | added to our parent's nested function list. |
5515 | If there are static coarrays in this function, the nested _caf_init | |
5516 | function has already called cgraph_create_node, which also created | |
5517 | the cgraph node for this function. */ | |
460beda6 | 5518 | (void) cgraph_create_node (fndecl); |
4ee9c684 | 5519 | else |
bb982f66 | 5520 | cgraph_finalize_function (fndecl, true); |
df4d540f | 5521 | |
5522 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5523 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 5524 | |
5525 | if (sym->attr.is_main_program) | |
5526 | create_main_function (fndecl); | |
89ac8ba1 | 5527 | |
5528 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 5529 | } |
5530 | ||
7257a5d2 | 5531 | |
4ee9c684 | 5532 | void |
5533 | gfc_generate_constructors (void) | |
5534 | { | |
22d678e8 | 5535 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 5536 | #if 0 |
5537 | tree fnname; | |
5538 | tree type; | |
5539 | tree fndecl; | |
5540 | tree decl; | |
5541 | tree tmp; | |
5542 | ||
5543 | if (gfc_static_ctors == NULL_TREE) | |
5544 | return; | |
5545 | ||
db85cc4f | 5546 | fnname = get_file_function_name ("I"); |
e1036019 | 5547 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 5548 | |
e60a6f7b | 5549 | fndecl = build_decl (input_location, |
5550 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 5551 | TREE_PUBLIC (fndecl) = 1; |
5552 | ||
e60a6f7b | 5553 | decl = build_decl (input_location, |
5554 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 5555 | DECL_ARTIFICIAL (decl) = 1; |
5556 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 5557 | DECL_CONTEXT (decl) = fndecl; |
5558 | DECL_RESULT (fndecl) = decl; | |
5559 | ||
5560 | pushdecl (fndecl); | |
5561 | ||
5562 | current_function_decl = fndecl; | |
5563 | ||
b2c4af5e | 5564 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 5565 | |
b2c4af5e | 5566 | make_decl_rtl (fndecl); |
4ee9c684 | 5567 | |
00cf115c | 5568 | allocate_struct_function (fndecl, false); |
4ee9c684 | 5569 | |
cde2be84 | 5570 | pushlevel (); |
4ee9c684 | 5571 | |
5572 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
5573 | { | |
389dd41b | 5574 | tmp = build_call_expr_loc (input_location, |
5575 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 5576 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 5577 | } |
5578 | ||
e5004242 | 5579 | decl = getdecls (); |
cde2be84 | 5580 | poplevel (1, 1); |
4ee9c684 | 5581 | |
5582 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 5583 | DECL_SAVED_TREE (fndecl) |
5584 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5585 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 5586 | |
5587 | free_after_parsing (cfun); | |
5588 | free_after_compilation (cfun); | |
5589 | ||
6148a911 | 5590 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 5591 | |
5592 | current_function_decl = NULL_TREE; | |
5593 | #endif | |
5594 | } | |
5595 | ||
9ec7c303 | 5596 | /* Translates a BLOCK DATA program unit. This means emitting the |
5597 | commons contained therein plus their initializations. We also emit | |
5598 | a globally visible symbol to make sure that each BLOCK DATA program | |
5599 | unit remains unique. */ | |
5600 | ||
5601 | void | |
5602 | gfc_generate_block_data (gfc_namespace * ns) | |
5603 | { | |
5604 | tree decl; | |
5605 | tree id; | |
5606 | ||
b31f705b | 5607 | /* Tell the backend the source location of the block data. */ |
5608 | if (ns->proc_name) | |
5609 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
5610 | else | |
5611 | gfc_set_backend_locus (&gfc_current_locus); | |
5612 | ||
5613 | /* Process the DATA statements. */ | |
9ec7c303 | 5614 | gfc_trans_common (ns); |
5615 | ||
b31f705b | 5616 | /* Create a global symbol with the mane of the block data. This is to |
5617 | generate linker errors if the same name is used twice. It is never | |
5618 | really used. */ | |
9ec7c303 | 5619 | if (ns->proc_name) |
5620 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
5621 | else | |
5622 | id = get_identifier ("__BLOCK_DATA__"); | |
5623 | ||
e60a6f7b | 5624 | decl = build_decl (input_location, |
5625 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 5626 | TREE_PUBLIC (decl) = 1; |
5627 | TREE_STATIC (decl) = 1; | |
df4d540f | 5628 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 5629 | |
5630 | pushdecl (decl); | |
5631 | rest_of_decl_compilation (decl, 1, 0); | |
5632 | } | |
5633 | ||
b549d2a5 | 5634 | |
6a7084d7 | 5635 | /* Process the local variables of a BLOCK construct. */ |
5636 | ||
5637 | void | |
3c82e013 | 5638 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 5639 | { |
5640 | tree decl; | |
5641 | ||
5642 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 5643 | has_coarray_vars = false; |
5644 | ||
6a7084d7 | 5645 | generate_local_vars (ns); |
5646 | ||
a961ca30 | 5647 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5648 | generate_coarray_init (ns); | |
5649 | ||
6a7084d7 | 5650 | decl = saved_local_decls; |
5651 | while (decl) | |
5652 | { | |
5653 | tree next; | |
5654 | ||
1767a056 | 5655 | next = DECL_CHAIN (decl); |
5656 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 5657 | pushdecl (decl); |
5658 | decl = next; | |
5659 | } | |
5660 | saved_local_decls = NULL_TREE; | |
5661 | } | |
5662 | ||
5663 | ||
4ee9c684 | 5664 | #include "gt-fortran-trans-decl.h" |