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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; |
8b9eb27e | 1208 | bool fun_or_res; |
4ee9c684 | 1209 | |
0b5dc8b5 | 1210 | gcc_assert (sym->attr.referenced |
9e45357a | 1211 | || sym->attr.flavor == FL_PROCEDURE |
1212 | || sym->attr.use_assoc | |
1213 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY | |
1214 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1215 | && sym->backend_decl)); | |
4ee9c684 | 1216 | |
ff70e443 | 1217 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1218 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1219 | else | |
1220 | byref = 0; | |
1221 | ||
09c509ed | 1222 | /* Make sure that the vtab for the declared type is completed. */ |
1223 | if (sym->ts.type == BT_CLASS) | |
1224 | { | |
50b4b37b | 1225 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1226 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1227 | { |
1228 | gfc_find_derived_vtab (c->ts.u.derived); | |
1229 | gfc_get_derived_type (sym->ts.u.derived); | |
1230 | } | |
09c509ed | 1231 | } |
1232 | ||
617125a6 | 1233 | /* All deferred character length procedures need to retain the backend |
1234 | decl, which is a pointer to the character length in the caller's | |
1235 | namespace and to declare a local character length. */ | |
1236 | if (!byref && sym->attr.function | |
1237 | && sym->ts.type == BT_CHARACTER | |
1238 | && sym->ts.deferred | |
1239 | && sym->ts.u.cl->passed_length == NULL | |
1240 | && sym->ts.u.cl->backend_decl | |
1241 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1242 | { | |
1243 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1244 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1245 | length = gfc_create_string_length (sym); | |
1246 | } | |
1247 | ||
8b9eb27e | 1248 | fun_or_res = byref && (sym->attr.result |
1249 | || (sym->attr.function && sym->ts.deferred)); | |
1250 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1251 | { |
1252 | /* Return via extra parameter. */ | |
1253 | if (sym->attr.result && byref | |
1254 | && !sym->backend_decl) | |
1255 | { | |
1256 | sym->backend_decl = | |
1257 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1258 | /* For entry master function skip over the __entry |
1259 | argument. */ | |
1260 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1261 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1262 | } |
1263 | ||
1264 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1265 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1266 | |
1267 | /* Create a character length variable. */ | |
1268 | if (sym->ts.type == BT_CHARACTER) | |
1269 | { | |
617125a6 | 1270 | /* For a deferred dummy, make a new string length variable. */ |
1271 | if (sym->ts.deferred | |
1272 | && | |
1273 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1274 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1275 | ||
8b9eb27e | 1276 | if (sym->ts.deferred && fun_or_res |
617125a6 | 1277 | && sym->ts.u.cl->passed_length == NULL |
1278 | && sym->ts.u.cl->backend_decl) | |
1279 | { | |
1280 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1281 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1282 | } | |
1283 | ||
eeebe20b | 1284 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1285 | length = gfc_create_string_length (sym); |
1286 | else | |
eeebe20b | 1287 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1288 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1289 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1290 | { |
d95efb59 | 1291 | /* Add the string length to the same context as the symbol. */ |
1292 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1293 | gfc_add_decl_to_function (length); | |
1294 | else | |
1295 | gfc_add_decl_to_parent_function (length); | |
1296 | ||
1297 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1298 | DECL_CONTEXT (length)); | |
1299 | ||
d4163395 | 1300 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1301 | } |
4ee9c684 | 1302 | } |
1303 | ||
1304 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1305 | if ((sym->attr.dimension || sym->attr.codimension) |
1306 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1307 | { |
d95efb59 | 1308 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1309 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1310 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1311 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1312 | sym->backend_decl = decl; | |
4ee9c684 | 1313 | } |
1314 | ||
1315 | TREE_USED (sym->backend_decl) = 1; | |
c8f1568f | 1316 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1317 | { | |
1318 | gfc_add_assign_aux_vars (sym); | |
1319 | } | |
9579733e | 1320 | |
1321 | if (sym->attr.dimension | |
1322 | && DECL_LANG_SPECIFIC (sym->backend_decl) | |
1323 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1324 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1325 | gfc_nonlocal_dummy_array_decl (sym); | |
1326 | ||
fd23cc08 | 1327 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1328 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1329 | ||
1330 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1331 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1332 | return sym->backend_decl; | |
4ee9c684 | 1333 | } |
1334 | ||
1335 | if (sym->backend_decl) | |
1336 | return sym->backend_decl; | |
1337 | ||
a25debd0 | 1338 | /* Special case for array-valued named constants from intrinsic |
1339 | procedures; those are inlined. */ | |
1340 | if (sym->attr.use_assoc && sym->from_intmod | |
1341 | && sym->attr.flavor == FL_PARAMETER) | |
1342 | intrinsic_array_parameter = true; | |
1343 | ||
044bbd71 | 1344 | /* If use associated compilation, use the module |
094bca96 | 1345 | declaration. */ |
044bbd71 | 1346 | if ((sym->attr.flavor == FL_VARIABLE |
1347 | || sym->attr.flavor == FL_PARAMETER) | |
1348 | && sym->attr.use_assoc | |
1349 | && !intrinsic_array_parameter | |
1350 | && sym->module | |
1351 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1352 | { |
1353 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1354 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1355 | return sym->backend_decl; | |
1356 | } | |
7ea64434 | 1357 | |
4ee9c684 | 1358 | if (sym->attr.flavor == FL_PROCEDURE) |
1359 | { | |
802532b9 | 1360 | /* Catch function declarations. Only used for actual parameters, |
1361 | procedure pointers and procptr initialization targets. */ | |
1362 | if (sym->attr.external || sym->attr.use_assoc || sym->attr.intrinsic) | |
1363 | { | |
1364 | decl = gfc_get_extern_function_decl (sym); | |
1365 | gfc_set_decl_location (decl, &sym->declared_at); | |
1366 | } | |
1367 | else | |
1368 | { | |
1369 | if (!sym->backend_decl) | |
1370 | build_function_decl (sym, false); | |
1371 | decl = sym->backend_decl; | |
1372 | } | |
4ee9c684 | 1373 | return decl; |
1374 | } | |
1375 | ||
1376 | if (sym->attr.intrinsic) | |
1377 | internal_error ("intrinsic variable which isn't a procedure"); | |
1378 | ||
1379 | /* Create string length decl first so that they can be used in the | |
1380 | type declaration. */ | |
1381 | if (sym->ts.type == BT_CHARACTER) | |
1382 | length = gfc_create_string_length (sym); | |
1383 | ||
1384 | /* Create the decl for the variable. */ | |
e60a6f7b | 1385 | decl = build_decl (sym->declared_at.lb->location, |
1386 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1387 | |
1236e28b | 1388 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1389 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1390 | decl_attributes (&decl, attributes, 0); | |
1391 | ||
f888a3fb | 1392 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1393 | This is done here rather than in gfc_finish_var_decl because it |
1394 | is different for string length variables. */ | |
4f0fae8e | 1395 | if (sym->module) |
df4d540f | 1396 | { |
1236e28b | 1397 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1398 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1399 | DECL_IGNORED_P (decl) = 1; |
1400 | } | |
4ee9c684 | 1401 | |
bc5663df | 1402 | if (sym->attr.select_type_temporary) |
1403 | { | |
1404 | DECL_ARTIFICIAL (decl) = 1; | |
1405 | DECL_IGNORED_P (decl) = 1; | |
1406 | } | |
1407 | ||
7a777e43 | 1408 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1409 | { |
1410 | /* Create variables to hold the non-constant bits of array info. */ | |
1411 | gfc_build_qualified_array (decl, sym); | |
1412 | ||
b3c3927c | 1413 | if (sym->attr.contiguous |
1414 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1415 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1416 | } | |
1417 | ||
0a96a7cc | 1418 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1419 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1420 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1421 | (CLASS_DATA (sym)->attr.dimension |
1422 | || CLASS_DATA (sym)->attr.allocatable)) | |
0a96a7cc | 1423 | || (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
1424 | /* This applies a derived type default initializer. */ | |
1425 | || (sym->ts.type == BT_DERIVED | |
1426 | && sym->attr.save == SAVE_NONE | |
1427 | && !sym->attr.data | |
1428 | && !sym->attr.allocatable | |
1429 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1430 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1431 | gfc_defer_symbol_init (sym); |
2294b616 | 1432 | |
4ee9c684 | 1433 | gfc_finish_var_decl (decl, sym); |
1434 | ||
bda1f152 | 1435 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1436 | { |
4ee9c684 | 1437 | /* Character variables need special handling. */ |
1438 | gfc_allocate_lang_decl (decl); | |
1439 | ||
bda1f152 | 1440 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1441 | { |
4ee9c684 | 1442 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1443 | gcc_assert (!sym->value); |
4ee9c684 | 1444 | } |
4ee9c684 | 1445 | } |
1033248c | 1446 | else if (sym->attr.subref_array_pointer) |
1447 | { | |
1448 | /* We need the span for these beasts. */ | |
1449 | gfc_allocate_lang_decl (decl); | |
1450 | } | |
1451 | ||
1452 | if (sym->attr.subref_array_pointer) | |
1453 | { | |
1454 | tree span; | |
1455 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1456 | span = build_decl (input_location, |
1457 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1458 | gfc_array_index_type); |
1459 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1460 | TREE_STATIC (span) = TREE_STATIC (decl); |
1461 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1462 | |
1463 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1464 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1465 | } |
1466 | ||
fd23cc08 | 1467 | if (sym->ts.type == BT_CLASS) |
1468 | GFC_DECL_CLASS(decl) = 1; | |
1469 | ||
4ee9c684 | 1470 | sym->backend_decl = decl; |
1471 | ||
c8f1568f | 1472 | if (sym->attr.assign) |
21ebda4d | 1473 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1474 | |
cd2c99b8 | 1475 | if (intrinsic_array_parameter) |
1476 | { | |
1477 | TREE_STATIC (decl) = 1; | |
1478 | DECL_EXTERNAL (decl) = 0; | |
1479 | } | |
1480 | ||
1481 | if (TREE_STATIC (decl) | |
1482 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1483 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
1484 | || gfc_option.flag_max_stack_var_size == 0 | |
a961ca30 | 1485 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
0d3bb1de | 1486 | && (gfc_option.coarray != GFC_FCOARRAY_LIB |
1487 | || !sym->attr.codimension || sym->attr.allocatable)) | |
a545a8f8 | 1488 | { |
1489 | /* Add static initializer. For procedures, it is only needed if | |
1490 | SAVE is specified otherwise they need to be reinitialized | |
1491 | every time the procedure is entered. The TREE_STATIC is | |
1492 | in this case due to -fmax-stack-var-size=. */ | |
bda1f152 | 1493 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
802532b9 | 1494 | TREE_TYPE (decl), |
0d3bb1de | 1495 | sym->attr.dimension |
1496 | || (sym->attr.codimension | |
1497 | && sym->attr.allocatable), | |
802532b9 | 1498 | sym->attr.pointer |
1499 | || sym->attr.allocatable, | |
1500 | sym->attr.proc_pointer); | |
bda1f152 | 1501 | } |
1502 | ||
9579733e | 1503 | if (!TREE_STATIC (decl) |
1504 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1505 | && !sym->attr.pointer | |
1506 | && !sym->attr.allocatable | |
bc5663df | 1507 | && !sym->attr.proc_pointer |
1508 | && !sym->attr.select_type_temporary) | |
9579733e | 1509 | DECL_BY_REFERENCE (decl) = 1; |
1510 | ||
ebad7c3e | 1511 | if (sym->attr.vtab |
1512 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1513 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1514 | |
4ee9c684 | 1515 | return decl; |
1516 | } | |
1517 | ||
1518 | ||
dbe60343 | 1519 | /* Substitute a temporary variable in place of the real one. */ |
1520 | ||
1521 | void | |
1522 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1523 | { | |
1524 | save->attr = sym->attr; | |
1525 | save->decl = sym->backend_decl; | |
1526 | ||
1527 | gfc_clear_attr (&sym->attr); | |
1528 | sym->attr.referenced = 1; | |
1529 | sym->attr.flavor = FL_VARIABLE; | |
1530 | ||
1531 | sym->backend_decl = decl; | |
1532 | } | |
1533 | ||
1534 | ||
1535 | /* Restore the original variable. */ | |
1536 | ||
1537 | void | |
1538 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1539 | { | |
1540 | sym->attr = save->attr; | |
1541 | sym->backend_decl = save->decl; | |
1542 | } | |
1543 | ||
1544 | ||
cad0ddcf | 1545 | /* Declare a procedure pointer. */ |
1546 | ||
1547 | static tree | |
1548 | get_proc_pointer_decl (gfc_symbol *sym) | |
1549 | { | |
1550 | tree decl; | |
36b0a1b0 | 1551 | tree attributes; |
cad0ddcf | 1552 | |
1553 | decl = sym->backend_decl; | |
1554 | if (decl) | |
1555 | return decl; | |
1556 | ||
e60a6f7b | 1557 | decl = build_decl (input_location, |
1558 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1559 | build_pointer_type (gfc_get_function_type (sym))); |
1560 | ||
ea6f8461 | 1561 | if (sym->module) |
1562 | { | |
1563 | /* Apply name mangling. */ | |
1564 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1565 | if (sym->attr.use_assoc) | |
1566 | DECL_IGNORED_P (decl) = 1; | |
1567 | } | |
a90fe829 | 1568 | |
e72f979a | 1569 | if ((sym->ns->proc_name |
1570 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1571 | || sym->attr.contained) |
1572 | gfc_add_decl_to_function (decl); | |
cf269acc | 1573 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1574 | gfc_add_decl_to_parent_function (decl); |
1575 | ||
1576 | sym->backend_decl = decl; | |
1577 | ||
cf269acc | 1578 | /* If a variable is USE associated, it's always external. */ |
1579 | if (sym->attr.use_assoc) | |
1580 | { | |
1581 | DECL_EXTERNAL (decl) = 1; | |
1582 | TREE_PUBLIC (decl) = 1; | |
1583 | } | |
1584 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1585 | { | |
1586 | /* This is the declaration of a module variable. */ | |
1587 | TREE_PUBLIC (decl) = 1; | |
1588 | TREE_STATIC (decl) = 1; | |
1589 | } | |
1590 | ||
cad0ddcf | 1591 | if (!sym->attr.use_assoc |
1592 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1593 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1594 | TREE_STATIC (decl) = 1; | |
1595 | ||
1596 | if (TREE_STATIC (decl) && sym->value) | |
1597 | { | |
1598 | /* Add static initializer. */ | |
1599 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1600 | TREE_TYPE (decl), |
1601 | sym->attr.dimension, | |
1602 | false, true); | |
cad0ddcf | 1603 | } |
1604 | ||
8fb1768c | 1605 | /* Handle threadprivate procedure pointers. */ |
1606 | if (sym->attr.threadprivate | |
1607 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
1608 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
1609 | ||
36b0a1b0 | 1610 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1611 | decl_attributes (&decl, attributes, 0); | |
1612 | ||
cad0ddcf | 1613 | return decl; |
1614 | } | |
1615 | ||
1616 | ||
4ee9c684 | 1617 | /* Get a basic decl for an external function. */ |
1618 | ||
1619 | tree | |
1620 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1621 | { | |
1622 | tree type; | |
1623 | tree fndecl; | |
36b0a1b0 | 1624 | tree attributes; |
4ee9c684 | 1625 | gfc_expr e; |
1626 | gfc_intrinsic_sym *isym; | |
1627 | gfc_expr argexpr; | |
17000b91 | 1628 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1629 | tree name; |
1630 | tree mangled_name; | |
83aeedb9 | 1631 | gfc_gsymbol *gsym; |
4ee9c684 | 1632 | |
1633 | if (sym->backend_decl) | |
1634 | return sym->backend_decl; | |
1635 | ||
1b716045 | 1636 | /* We should never be creating external decls for alternate entry points. |
1637 | The procedure may be an alternate entry point, but we don't want/need | |
1638 | to know that. */ | |
22d678e8 | 1639 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1640 | |
cad0ddcf | 1641 | if (sym->attr.proc_pointer) |
1642 | return get_proc_pointer_decl (sym); | |
1643 | ||
83aeedb9 | 1644 | /* See if this is an external procedure from the same file. If so, |
1645 | return the backend_decl. */ | |
da5c730d | 1646 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1647 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1648 | |
c8b913ab | 1649 | if (gsym && !gsym->defined) |
1650 | gsym = NULL; | |
1651 | ||
1652 | /* This can happen because of C binding. */ | |
1653 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1654 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1655 | goto module_sym; | |
1656 | ||
044bbd71 | 1657 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1658 | && !sym->backend_decl | |
1659 | && gsym && gsym->ns | |
1660 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1661 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1662 | { |
d896f9b3 | 1663 | if (!gsym->ns->proc_name->backend_decl) |
1664 | { | |
1665 | /* By construction, the external function cannot be | |
1666 | a contained procedure. */ | |
1667 | locus old_loc; | |
d896f9b3 | 1668 | |
4671339c | 1669 | gfc_save_backend_locus (&old_loc); |
9078126c | 1670 | push_cfun (NULL); |
d896f9b3 | 1671 | |
1672 | gfc_create_function_decl (gsym->ns, true); | |
1673 | ||
1674 | pop_cfun (); | |
4671339c | 1675 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1676 | } |
1677 | ||
83aeedb9 | 1678 | /* If the namespace has entries, the proc_name is the |
1679 | entry master. Find the entry and use its backend_decl. | |
1680 | otherwise, use the proc_name backend_decl. */ | |
1681 | if (gsym->ns->entries) | |
1682 | { | |
1683 | gfc_entry_list *entry = gsym->ns->entries; | |
1684 | ||
1685 | for (; entry; entry = entry->next) | |
1686 | { | |
1687 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1688 | { | |
1689 | sym->backend_decl = entry->sym->backend_decl; | |
1690 | break; | |
1691 | } | |
1692 | } | |
1693 | } | |
1694 | else | |
40c74b02 | 1695 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1696 | |
1697 | if (sym->backend_decl) | |
40c74b02 | 1698 | { |
1699 | /* Avoid problems of double deallocation of the backend declaration | |
1700 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1701 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1702 | sym->attr.use_assoc = 0; | |
1703 | ||
1704 | return sym->backend_decl; | |
1705 | } | |
83aeedb9 | 1706 | } |
1707 | ||
7ea64434 | 1708 | /* See if this is a module procedure from the same file. If so, |
1709 | return the backend_decl. */ | |
1710 | if (sym->module) | |
1711 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1712 | ||
c8b913ab | 1713 | module_sym: |
1714 | if (gsym && gsym->ns | |
1715 | && (gsym->type == GSYM_MODULE | |
1716 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 1717 | { |
1718 | gfc_symbol *s; | |
1719 | ||
1720 | s = NULL; | |
c8b913ab | 1721 | if (gsym->type == GSYM_MODULE) |
1722 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1723 | else | |
1724 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
1725 | ||
7ea64434 | 1726 | if (s && s->backend_decl) |
1727 | { | |
85ec2f13 | 1728 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1729 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1730 | true); | |
1731 | else if (sym->ts.type == BT_CHARACTER) | |
1732 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1733 | sym->backend_decl = s->backend_decl; |
1734 | return sym->backend_decl; | |
1735 | } | |
1736 | } | |
1737 | ||
4ee9c684 | 1738 | if (sym->attr.intrinsic) |
1739 | { | |
1740 | /* Call the resolution function to get the actual name. This is | |
1741 | a nasty hack which relies on the resolution functions only looking | |
1742 | at the first argument. We pass NULL for the second argument | |
1743 | otherwise things like AINT get confused. */ | |
1744 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1745 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1746 | |
1747 | memset (&e, 0, sizeof (e)); | |
1748 | e.expr_type = EXPR_FUNCTION; | |
1749 | ||
1750 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1751 | gcc_assert (isym->formal); |
4ee9c684 | 1752 | argexpr.ts = isym->formal->ts; |
1753 | ||
1754 | if (isym->formal->next == NULL) | |
1755 | isym->resolve.f1 (&e, &argexpr); | |
1756 | else | |
1757 | { | |
37e0271a | 1758 | if (isym->formal->next->next == NULL) |
1759 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1760 | else | |
1761 | { | |
7fe55cc9 | 1762 | if (isym->formal->next->next->next == NULL) |
1763 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1764 | else | |
1765 | { | |
1766 | /* All specific intrinsics take less than 5 arguments. */ | |
1767 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1768 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1769 | } | |
37e0271a | 1770 | } |
4ee9c684 | 1771 | } |
bdaed7d2 | 1772 | |
1773 | if (gfc_option.flag_f2c | |
1774 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) | |
1775 | || e.ts.type == BT_COMPLEX)) | |
1776 | { | |
1777 | /* Specific which needs a different implementation if f2c | |
1778 | calling conventions are used. */ | |
17000b91 | 1779 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1780 | } |
1781 | else | |
17000b91 | 1782 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1783 | |
4ee9c684 | 1784 | name = get_identifier (s); |
1785 | mangled_name = name; | |
1786 | } | |
1787 | else | |
1788 | { | |
1789 | name = gfc_sym_identifier (sym); | |
1790 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1791 | } | |
1792 | ||
1793 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1794 | fndecl = build_decl (input_location, |
1795 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1796 | |
e27454ee | 1797 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1798 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1799 | the opposite of declaring a function as static in C). */ |
e27454ee | 1800 | DECL_EXTERNAL (fndecl) = 1; |
1801 | TREE_PUBLIC (fndecl) = 1; | |
1802 | ||
1236e28b | 1803 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1804 | decl_attributes (&fndecl, attributes, 0); | |
1805 | ||
1806 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 1807 | |
1808 | /* Set the context of this decl. */ | |
1809 | if (0 && sym->ns && sym->ns->proc_name) | |
1810 | { | |
1811 | /* TODO: Add external decls to the appropriate scope. */ | |
1812 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
1813 | } | |
1814 | else | |
1815 | { | |
f888a3fb | 1816 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 1817 | DECL_CONTEXT (fndecl) = NULL_TREE; |
1818 | } | |
1819 | ||
4ee9c684 | 1820 | /* Set attributes for PURE functions. A call to PURE function in the |
1821 | Fortran 95 sense is both pure and without side effects in the C | |
1822 | sense. */ | |
bead0399 | 1823 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 1824 | { |
4d4b9f0e | 1825 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1826 | DECL_PURE_P (fndecl) = 1; |
be393645 | 1827 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
1828 | parameters and don't use alternate returns (is this | |
1829 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 1830 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 1831 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 1832 | } |
1833 | ||
6e27d773 | 1834 | /* Mark non-returning functions. */ |
1835 | if (sym->attr.noreturn) | |
1836 | TREE_THIS_VOLATILE(fndecl) = 1; | |
1837 | ||
4ee9c684 | 1838 | sym->backend_decl = fndecl; |
1839 | ||
1840 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
1841 | pushdecl_top_level (fndecl); | |
1842 | ||
1843 | return fndecl; | |
1844 | } | |
1845 | ||
1846 | ||
1847 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 1848 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
1849 | a master function with alternate entry points. */ | |
4ee9c684 | 1850 | |
1b716045 | 1851 | static void |
d896f9b3 | 1852 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 1853 | { |
36b0a1b0 | 1854 | tree fndecl, type, attributes; |
4ee9c684 | 1855 | symbol_attribute attr; |
1b716045 | 1856 | tree result_decl; |
4ee9c684 | 1857 | gfc_formal_arglist *f; |
1858 | ||
22d678e8 | 1859 | gcc_assert (!sym->attr.external); |
4ee9c684 | 1860 | |
802532b9 | 1861 | if (sym->backend_decl) |
1862 | return; | |
1863 | ||
b31f705b | 1864 | /* Set the line and filename. sym->declared_at seems to point to the |
1865 | last statement for subroutines, but it'll do for now. */ | |
1866 | gfc_set_backend_locus (&sym->declared_at); | |
1867 | ||
4ee9c684 | 1868 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 1869 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 1870 | || DECL_FILE_SCOPE_P (current_function_decl) |
1871 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
1872 | == NAMESPACE_DECL)); | |
4ee9c684 | 1873 | |
1874 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1875 | fndecl = build_decl (input_location, |
1876 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 1877 | |
1236e28b | 1878 | attr = sym->attr; |
1879 | ||
e27454ee | 1880 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1881 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1882 | the opposite of declaring a function as static in C). */ |
e27454ee | 1883 | DECL_EXTERNAL (fndecl) = 0; |
1884 | ||
7d6b5754 | 1885 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
1886 | && (sym->ns->default_access == ACCESS_PRIVATE | |
1887 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
1888 | && gfc_option.flag_module_private))) | |
1889 | sym->attr.access = ACCESS_PRIVATE; | |
1890 | ||
e27454ee | 1891 | if (!current_function_decl |
c5cb468c | 1892 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 1893 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
1894 | || sym->attr.public_used)) | |
e27454ee | 1895 | TREE_PUBLIC (fndecl) = 1; |
1896 | ||
9e45357a | 1897 | if (sym->attr.referenced || sym->attr.entry_master) |
1898 | TREE_USED (fndecl) = 1; | |
1899 | ||
1236e28b | 1900 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
1901 | decl_attributes (&fndecl, attributes, 0); | |
1902 | ||
4ee9c684 | 1903 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 1904 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 1905 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 1906 | result_decl = NULL_TREE; |
1907 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
1908 | if (attr.function) | |
1909 | { | |
1910 | if (gfc_return_by_reference (sym)) | |
1911 | type = void_type_node; | |
1912 | else | |
1913 | { | |
1914 | if (sym->result != sym) | |
1915 | result_decl = gfc_sym_identifier (sym->result); | |
1916 | ||
1917 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
1918 | } | |
1919 | } | |
1920 | else | |
1921 | { | |
1922 | /* Look for alternate return placeholders. */ | |
1923 | int has_alternate_returns = 0; | |
6777213b | 1924 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 1925 | { |
1926 | if (f->sym == NULL) | |
1927 | { | |
1928 | has_alternate_returns = 1; | |
1929 | break; | |
1930 | } | |
1931 | } | |
1932 | ||
1933 | if (has_alternate_returns) | |
1934 | type = integer_type_node; | |
1935 | else | |
1936 | type = void_type_node; | |
1937 | } | |
1938 | ||
e60a6f7b | 1939 | result_decl = build_decl (input_location, |
1940 | RESULT_DECL, result_decl, type); | |
540edea7 | 1941 | DECL_ARTIFICIAL (result_decl) = 1; |
1942 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 1943 | DECL_CONTEXT (result_decl) = fndecl; |
1944 | DECL_RESULT (fndecl) = result_decl; | |
1945 | ||
1946 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 1947 | layout_decl (result_decl, 0); */ |
4ee9c684 | 1948 | |
4ee9c684 | 1949 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 1950 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 1951 | |
f888a3fb | 1952 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 1953 | Fortran 95 sense is both pure and without side effects in the C |
1954 | sense. */ | |
bead0399 | 1955 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 1956 | { |
be393645 | 1957 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 1958 | including an alternate return. In that case it can also be |
231e961a | 1959 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 1960 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1961 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 1962 | TREE_SIDE_EFFECTS (fndecl) = 0; |
1963 | } | |
1964 | ||
36b0a1b0 | 1965 | |
4ee9c684 | 1966 | /* Layout the function declaration and put it in the binding level |
1967 | of the current function. */ | |
d896f9b3 | 1968 | |
4c197fd0 | 1969 | if (global) |
d896f9b3 | 1970 | pushdecl_top_level (fndecl); |
1971 | else | |
1972 | pushdecl (fndecl); | |
1b716045 | 1973 | |
16a40513 | 1974 | /* Perform name mangling if this is a top level or module procedure. */ |
1975 | if (current_function_decl == NULL_TREE) | |
1976 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
1977 | ||
1b716045 | 1978 | sym->backend_decl = fndecl; |
1979 | } | |
1980 | ||
1981 | ||
1982 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
1983 | ||
1984 | static void | |
1985 | create_function_arglist (gfc_symbol * sym) | |
1986 | { | |
1987 | tree fndecl; | |
1988 | gfc_formal_arglist *f; | |
d4163395 | 1989 | tree typelist, hidden_typelist; |
1990 | tree arglist, hidden_arglist; | |
1b716045 | 1991 | tree type; |
1992 | tree parm; | |
1993 | ||
1994 | fndecl = sym->backend_decl; | |
1995 | ||
e4b2c26c | 1996 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
1997 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 1998 | arglist = NULL_TREE; |
d4163395 | 1999 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2000 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2001 | |
2002 | if (sym->attr.entry_master) | |
2003 | { | |
2004 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2005 | parm = build_decl (input_location, |
2006 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2007 | |
1b716045 | 2008 | DECL_CONTEXT (parm) = fndecl; |
2009 | DECL_ARG_TYPE (parm) = type; | |
2010 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2011 | gfc_finish_decl (parm); |
d95efb59 | 2012 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2013 | |
2014 | arglist = chainon (arglist, parm); | |
2015 | typelist = TREE_CHAIN (typelist); | |
2016 | } | |
2017 | ||
e4b2c26c | 2018 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2019 | { |
d4163395 | 2020 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2021 | |
e4b2c26c | 2022 | if (sym->ts.type == BT_CHARACTER) |
2023 | { | |
e4b2c26c | 2024 | /* Length of character result. */ |
d4163395 | 2025 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2026 | |
e60a6f7b | 2027 | length = build_decl (input_location, |
2028 | PARM_DECL, | |
e4b2c26c | 2029 | get_identifier (".__result"), |
d4163395 | 2030 | len_type); |
eeebe20b | 2031 | if (!sym->ts.u.cl->length) |
e4b2c26c | 2032 | { |
eeebe20b | 2033 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2034 | TREE_USED (length) = 1; |
4ee9c684 | 2035 | } |
22d678e8 | 2036 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2037 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2038 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2039 | TREE_READONLY (length) = 1; |
b5b40b3f | 2040 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2041 | gfc_finish_decl (length); |
eeebe20b | 2042 | if (sym->ts.u.cl->backend_decl == NULL |
2043 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2044 | { |
2045 | gfc_symbol *arg; | |
2046 | tree backend_decl; | |
4ee9c684 | 2047 | |
eeebe20b | 2048 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2049 | { |
e60a6f7b | 2050 | tree len = build_decl (input_location, |
2051 | VAR_DECL, | |
d4163395 | 2052 | get_identifier ("..__result"), |
2053 | gfc_charlen_type_node); | |
2054 | DECL_ARTIFICIAL (len) = 1; | |
2055 | TREE_USED (len) = 1; | |
eeebe20b | 2056 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2057 | } |
4ee9c684 | 2058 | |
d4163395 | 2059 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2060 | arg = sym->result ? sym->result : sym; | |
2061 | backend_decl = arg->backend_decl; | |
2062 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2063 | type. */ | |
2064 | arg->backend_decl = NULL; | |
2065 | type = gfc_sym_type (arg); | |
2066 | arg->backend_decl = backend_decl; | |
2067 | type = build_reference_type (type); | |
2068 | } | |
2069 | } | |
4ee9c684 | 2070 | |
e60a6f7b | 2071 | parm = build_decl (input_location, |
2072 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2073 | |
d4163395 | 2074 | DECL_CONTEXT (parm) = fndecl; |
2075 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2076 | TREE_READONLY (parm) = 1; | |
2077 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2078 | gfc_finish_decl (parm); |
4ee9c684 | 2079 | |
d4163395 | 2080 | arglist = chainon (arglist, parm); |
2081 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2082 | |
d4163395 | 2083 | if (sym->ts.type == BT_CHARACTER) |
2084 | { | |
2085 | gfc_allocate_lang_decl (parm); | |
2086 | arglist = chainon (arglist, length); | |
e4b2c26c | 2087 | typelist = TREE_CHAIN (typelist); |
2088 | } | |
2089 | } | |
4ee9c684 | 2090 | |
d4163395 | 2091 | hidden_typelist = typelist; |
6777213b | 2092 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2093 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2094 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2095 | ||
6777213b | 2096 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2097 | { |
2098 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2099 | |
e4b2c26c | 2100 | /* Ignore alternate returns. */ |
2101 | if (f->sym == NULL) | |
2102 | continue; | |
4ee9c684 | 2103 | |
e4b2c26c | 2104 | type = TREE_VALUE (typelist); |
4ee9c684 | 2105 | |
296db1d1 | 2106 | if (f->sym->ts.type == BT_CHARACTER |
2107 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2108 | { |
2109 | tree len_type = TREE_VALUE (hidden_typelist); | |
2110 | tree length = NULL_TREE; | |
617125a6 | 2111 | if (!f->sym->ts.deferred) |
2112 | gcc_assert (len_type == gfc_charlen_type_node); | |
2113 | else | |
2114 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2115 | |
2116 | strcpy (&name[1], f->sym->name); | |
2117 | name[0] = '_'; | |
e60a6f7b | 2118 | length = build_decl (input_location, |
2119 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2120 | |
d4163395 | 2121 | hidden_arglist = chainon (hidden_arglist, length); |
2122 | DECL_CONTEXT (length) = fndecl; | |
2123 | DECL_ARTIFICIAL (length) = 1; | |
2124 | DECL_ARG_TYPE (length) = len_type; | |
2125 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2126 | gfc_finish_decl (length); |
4ee9c684 | 2127 | |
a4abf8a0 | 2128 | /* Remember the passed value. */ |
a90fe829 | 2129 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2130 | { |
2131 | /* This can happen if the same type is used for multiple | |
2132 | arguments. We need to copy cl as otherwise | |
2133 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2134 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2135 | } |
eeebe20b | 2136 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2137 | |
d4163395 | 2138 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2139 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2140 | { |
d4163395 | 2141 | TREE_USED (length) = 1; |
eeebe20b | 2142 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2143 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2144 | } |
2145 | ||
2146 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2147 | ||
eeebe20b | 2148 | if (f->sym->ts.u.cl->backend_decl == NULL |
2149 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2150 | { |
eeebe20b | 2151 | if (f->sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2152 | gfc_create_string_length (f->sym); |
2153 | ||
2154 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2155 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2156 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2157 | else | |
2158 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2159 | } |
4ee9c684 | 2160 | } |
532c2d79 | 2161 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
2162 | hence, the optional status cannot be transfered via a NULL pointer. | |
2163 | Thus, we will use a hidden argument in that case. */ | |
2164 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2165 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
532c2d79 | 2166 | && f->sym->ts.type != BT_DERIVED) |
2167 | { | |
2168 | tree tmp; | |
2169 | strcpy (&name[1], f->sym->name); | |
2170 | name[0] = '_'; | |
2171 | tmp = build_decl (input_location, | |
2172 | PARM_DECL, get_identifier (name), | |
2173 | boolean_type_node); | |
2174 | ||
2175 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2176 | DECL_CONTEXT (tmp) = fndecl; | |
2177 | DECL_ARTIFICIAL (tmp) = 1; | |
2178 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2179 | TREE_READONLY (tmp) = 1; | |
2180 | gfc_finish_decl (tmp); | |
2181 | } | |
4ee9c684 | 2182 | |
d4163395 | 2183 | /* For non-constant length array arguments, make sure they use |
2184 | a different type node from TYPE_ARG_TYPES type. */ | |
2185 | if (f->sym->attr.dimension | |
2186 | && type == TREE_VALUE (typelist) | |
2187 | && TREE_CODE (type) == POINTER_TYPE | |
2188 | && GFC_ARRAY_TYPE_P (type) | |
2189 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2190 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2191 | { | |
2192 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2193 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2194 | else | |
2195 | type = gfc_sym_type (f->sym); | |
2196 | } | |
2197 | ||
cad0ddcf | 2198 | if (f->sym->attr.proc_pointer) |
2199 | type = build_pointer_type (type); | |
2200 | ||
2364aa60 | 2201 | if (f->sym->attr.volatile_) |
2202 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2203 | ||
69b1505f | 2204 | /* Build the argument declaration. */ |
e60a6f7b | 2205 | parm = build_decl (input_location, |
2206 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2207 | |
2364aa60 | 2208 | if (f->sym->attr.volatile_) |
2209 | { | |
2210 | TREE_THIS_VOLATILE (parm) = 1; | |
2211 | TREE_SIDE_EFFECTS (parm) = 1; | |
2212 | } | |
2213 | ||
d4163395 | 2214 | /* Fill in arg stuff. */ |
2215 | DECL_CONTEXT (parm) = fndecl; | |
2216 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2217 | /* All implementation args are read-only. */ | |
2218 | TREE_READONLY (parm) = 1; | |
98923a84 | 2219 | if (POINTER_TYPE_P (type) |
2220 | && (!f->sym->attr.proc_pointer | |
2221 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2222 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2223 | |
b9c7fce7 | 2224 | gfc_finish_decl (parm); |
d4163395 | 2225 | |
2226 | f->sym->backend_decl = parm; | |
2227 | ||
7dce33fe | 2228 | /* Coarrays which are descriptorless or assumed-shape pass with |
2229 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
85c94a64 | 2230 | if (f->sym->attr.codimension |
2231 | && gfc_option.coarray == GFC_FCOARRAY_LIB | |
7dce33fe | 2232 | && !f->sym->attr.allocatable) |
85c94a64 | 2233 | { |
2234 | tree caf_type; | |
2235 | tree token; | |
2236 | tree offset; | |
2237 | ||
2238 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2239 | && !sym->attr.is_bind_c); | |
2240 | caf_type = TREE_TYPE (f->sym->backend_decl); | |
2241 | ||
85c94a64 | 2242 | token = build_decl (input_location, PARM_DECL, |
2243 | create_tmp_var_name ("caf_token"), | |
2244 | build_qualified_type (pvoid_type_node, | |
2245 | TYPE_QUAL_RESTRICT)); | |
7dce33fe | 2246 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2247 | { | |
2248 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2249 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2250 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2251 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2252 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2253 | } | |
2254 | else | |
2255 | { | |
2256 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2257 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2258 | } | |
a90fe829 | 2259 | |
85c94a64 | 2260 | DECL_CONTEXT (token) = fndecl; |
2261 | DECL_ARTIFICIAL (token) = 1; | |
2262 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2263 | TREE_READONLY (token) = 1; | |
2264 | hidden_arglist = chainon (hidden_arglist, token); | |
2265 | gfc_finish_decl (token); | |
2266 | ||
85c94a64 | 2267 | offset = build_decl (input_location, PARM_DECL, |
2268 | create_tmp_var_name ("caf_offset"), | |
2269 | gfc_array_index_type); | |
2270 | ||
7dce33fe | 2271 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2272 | { | |
2273 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2274 | == NULL_TREE); | |
2275 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2276 | } | |
2277 | else | |
2278 | { | |
2279 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2280 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2281 | } | |
85c94a64 | 2282 | DECL_CONTEXT (offset) = fndecl; |
2283 | DECL_ARTIFICIAL (offset) = 1; | |
2284 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2285 | TREE_READONLY (offset) = 1; | |
2286 | hidden_arglist = chainon (hidden_arglist, offset); | |
2287 | gfc_finish_decl (offset); | |
2288 | } | |
2289 | ||
d4163395 | 2290 | arglist = chainon (arglist, parm); |
e4b2c26c | 2291 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2292 | } |
e4b2c26c | 2293 | |
465e4a95 | 2294 | /* Add the hidden string length parameters, unless the procedure |
2295 | is bind(C). */ | |
2296 | if (!sym->attr.is_bind_c) | |
2297 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2298 | |
ebe27ea2 | 2299 | gcc_assert (hidden_typelist == NULL_TREE |
2300 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2301 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2302 | } |
e4b2c26c | 2303 | |
1b716045 | 2304 | /* Do the setup necessary before generating the body of a function. */ |
2305 | ||
2306 | static void | |
2307 | trans_function_start (gfc_symbol * sym) | |
2308 | { | |
2309 | tree fndecl; | |
2310 | ||
2311 | fndecl = sym->backend_decl; | |
2312 | ||
f888a3fb | 2313 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2314 | current_function_decl = fndecl; |
2315 | ||
f888a3fb | 2316 | /* Let the world know what we're about to do. */ |
1b716045 | 2317 | announce_function (fndecl); |
2318 | ||
16a40513 | 2319 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2320 | { |
f888a3fb | 2321 | /* Create RTL for function declaration. */ |
1b716045 | 2322 | rest_of_decl_compilation (fndecl, 1, 0); |
2323 | } | |
2324 | ||
f888a3fb | 2325 | /* Create RTL for function definition. */ |
1b716045 | 2326 | make_decl_rtl (fndecl); |
2327 | ||
00cf115c | 2328 | allocate_struct_function (fndecl, false); |
1b716045 | 2329 | |
f888a3fb | 2330 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2331 | pushlevel (); |
1b716045 | 2332 | } |
2333 | ||
2334 | /* Create thunks for alternate entry points. */ | |
2335 | ||
2336 | static void | |
d896f9b3 | 2337 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2338 | { |
2339 | gfc_formal_arglist *formal; | |
2340 | gfc_formal_arglist *thunk_formal; | |
2341 | gfc_entry_list *el; | |
2342 | gfc_symbol *thunk_sym; | |
2343 | stmtblock_t body; | |
2344 | tree thunk_fndecl; | |
1b716045 | 2345 | tree tmp; |
b31f705b | 2346 | locus old_loc; |
1b716045 | 2347 | |
2348 | /* This should always be a toplevel function. */ | |
22d678e8 | 2349 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2350 | |
4671339c | 2351 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2352 | for (el = ns->entries; el; el = el->next) |
2353 | { | |
f1f41a6c | 2354 | vec<tree, va_gc> *args = NULL; |
2355 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2356 | |
1b716045 | 2357 | thunk_sym = el->sym; |
a90fe829 | 2358 | |
d896f9b3 | 2359 | build_function_decl (thunk_sym, global); |
1b716045 | 2360 | create_function_arglist (thunk_sym); |
2361 | ||
2362 | trans_function_start (thunk_sym); | |
2363 | ||
2364 | thunk_fndecl = thunk_sym->backend_decl; | |
2365 | ||
e5004242 | 2366 | gfc_init_block (&body); |
1b716045 | 2367 | |
f888a3fb | 2368 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2369 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2370 | vec_safe_push (args, tmp); |
1b716045 | 2371 | |
c6871095 | 2372 | if (thunk_sym->attr.function) |
2373 | { | |
2374 | if (gfc_return_by_reference (ns->proc_name)) | |
2375 | { | |
2376 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2377 | vec_safe_push (args, ref); |
c6871095 | 2378 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2379 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2380 | } |
2381 | } | |
2382 | ||
6777213b | 2383 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2384 | formal = formal->next) | |
1b716045 | 2385 | { |
c6871095 | 2386 | /* Ignore alternate returns. */ |
2387 | if (formal->sym == NULL) | |
2388 | continue; | |
2389 | ||
1b716045 | 2390 | /* We don't have a clever way of identifying arguments, so resort to |
2391 | a brute-force search. */ | |
6777213b | 2392 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2393 | thunk_formal; |
2394 | thunk_formal = thunk_formal->next) | |
2395 | { | |
2396 | if (thunk_formal->sym == formal->sym) | |
2397 | break; | |
2398 | } | |
2399 | ||
2400 | if (thunk_formal) | |
2401 | { | |
2402 | /* Pass the argument. */ | |
d95efb59 | 2403 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2404 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2405 | if (formal->sym->ts.type == BT_CHARACTER) |
2406 | { | |
eeebe20b | 2407 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2408 | vec_safe_push (string_args, tmp); |
1b716045 | 2409 | } |
2410 | } | |
2411 | else | |
2412 | { | |
2413 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2414 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2415 | if (formal->sym->ts.type == BT_CHARACTER) |
2416 | { | |
7d3075f6 | 2417 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2418 | vec_safe_push (string_args, tmp); |
1b716045 | 2419 | } |
2420 | } | |
2421 | } | |
2422 | ||
2423 | /* Call the master function. */ | |
f1f41a6c | 2424 | vec_safe_splice (args, string_args); |
1b716045 | 2425 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2426 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2427 | if (ns->proc_name->attr.mixed_entry_master) |
2428 | { | |
2429 | tree union_decl, field; | |
2430 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2431 | ||
e60a6f7b | 2432 | union_decl = build_decl (input_location, |
2433 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2434 | TREE_TYPE (master_type)); |
2435 | DECL_ARTIFICIAL (union_decl) = 1; | |
2436 | DECL_EXTERNAL (union_decl) = 0; | |
2437 | TREE_PUBLIC (union_decl) = 0; | |
2438 | TREE_USED (union_decl) = 1; | |
2439 | layout_decl (union_decl, 0); | |
2440 | pushdecl (union_decl); | |
2441 | ||
2442 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2443 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2444 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2445 | gfc_add_expr_to_block (&body, tmp); |
2446 | ||
2447 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2448 | field; field = DECL_CHAIN (field)) |
c6871095 | 2449 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2450 | thunk_sym->result->name) == 0) | |
2451 | break; | |
2452 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2453 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2454 | TREE_TYPE (field), union_decl, field, | |
2455 | NULL_TREE); | |
a90fe829 | 2456 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2457 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2458 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2459 | tmp = build1_v (RETURN_EXPR, tmp); |
2460 | } | |
2461 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2462 | != void_type_node) | |
2463 | { | |
fd779e1d | 2464 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2465 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2466 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2467 | tmp = build1_v (RETURN_EXPR, tmp); |
2468 | } | |
1b716045 | 2469 | gfc_add_expr_to_block (&body, tmp); |
2470 | ||
2471 | /* Finish off this function and send it for code generation. */ | |
2472 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2473 | tmp = getdecls (); |
cde2be84 | 2474 | poplevel (1, 1); |
1b716045 | 2475 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2476 | DECL_SAVED_TREE (thunk_fndecl) |
2477 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2478 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2479 | |
2480 | /* Output the GENERIC tree. */ | |
2481 | dump_function (TDI_original, thunk_fndecl); | |
2482 | ||
2483 | /* Store the end of the function, so that we get good line number | |
2484 | info for the epilogue. */ | |
2485 | cfun->function_end_locus = input_location; | |
2486 | ||
2487 | /* We're leaving the context of this function, so zap cfun. | |
2488 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2489 | tree_rest_of_compilation. */ | |
87d4aa85 | 2490 | set_cfun (NULL); |
1b716045 | 2491 | |
2492 | current_function_decl = NULL_TREE; | |
2493 | ||
bb982f66 | 2494 | cgraph_finalize_function (thunk_fndecl, true); |
1b716045 | 2495 | |
2496 | /* We share the symbols in the formal argument list with other entry | |
2497 | points and the master function. Clear them so that they are | |
2498 | recreated for each function. */ | |
6777213b | 2499 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2500 | formal = formal->next) | |
c6871095 | 2501 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2502 | { | |
2503 | formal->sym->backend_decl = NULL_TREE; | |
2504 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2505 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2506 | } |
2507 | ||
2508 | if (thunk_sym->attr.function) | |
1b716045 | 2509 | { |
c6871095 | 2510 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2511 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2512 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2513 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2514 | } |
2515 | } | |
b31f705b | 2516 | |
4671339c | 2517 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2518 | } |
2519 | ||
2520 | ||
2521 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2522 | points. If global is true, generate the function in the global binding |
2523 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2524 | |
2525 | void | |
d896f9b3 | 2526 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2527 | { |
2528 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2529 | build_function_decl (ns->proc_name, global); |
1b716045 | 2530 | |
f888a3fb | 2531 | /* Compile the entry thunks. */ |
1b716045 | 2532 | if (ns->entries) |
d896f9b3 | 2533 | build_entry_thunks (ns, global); |
1b716045 | 2534 | |
2535 | /* Now create the read argument list. */ | |
2536 | create_function_arglist (ns->proc_name); | |
2537 | } | |
2538 | ||
c750cc52 | 2539 | /* Return the decl used to hold the function return value. If |
3350e716 | 2540 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2541 | |
2542 | tree | |
c750cc52 | 2543 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2544 | { |
c750cc52 | 2545 | tree decl; |
2546 | tree length; | |
2547 | tree this_fake_result_decl; | |
2548 | tree this_function_decl; | |
4ee9c684 | 2549 | |
2550 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2551 | ||
c750cc52 | 2552 | if (parent_flag) |
2553 | { | |
2554 | this_fake_result_decl = parent_fake_result_decl; | |
2555 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2556 | } | |
2557 | else | |
2558 | { | |
2559 | this_fake_result_decl = current_fake_result_decl; | |
2560 | this_function_decl = current_function_decl; | |
2561 | } | |
2562 | ||
c6871095 | 2563 | if (sym |
c750cc52 | 2564 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2565 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2566 | && sym != sym->ns->proc_name) |
2567 | { | |
d4163395 | 2568 | tree t = NULL, var; |
c750cc52 | 2569 | if (this_fake_result_decl != NULL) |
2570 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2571 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2572 | break; | |
2573 | if (t) | |
2574 | return TREE_VALUE (t); | |
c750cc52 | 2575 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2576 | ||
2577 | if (parent_flag) | |
2578 | this_fake_result_decl = parent_fake_result_decl; | |
2579 | else | |
2580 | this_fake_result_decl = current_fake_result_decl; | |
2581 | ||
d4163395 | 2582 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2583 | { |
2584 | tree field; | |
2585 | ||
2586 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2587 | field; field = DECL_CHAIN (field)) |
c6871095 | 2588 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2589 | sym->name) == 0) | |
2590 | break; | |
2591 | ||
2592 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2593 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2594 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2595 | } |
c750cc52 | 2596 | |
2597 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2598 | if (parent_flag) | |
2599 | gfc_add_decl_to_parent_function (var); | |
2600 | else | |
2601 | gfc_add_decl_to_function (var); | |
2602 | ||
d4163395 | 2603 | SET_DECL_VALUE_EXPR (var, decl); |
2604 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2605 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2606 | |
2607 | TREE_CHAIN (this_fake_result_decl) | |
2608 | = tree_cons (get_identifier (sym->name), var, | |
2609 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2610 | return var; |
c6871095 | 2611 | } |
2612 | ||
c750cc52 | 2613 | if (this_fake_result_decl != NULL_TREE) |
2614 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2615 | |
2616 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2617 | sym is NULL. */ | |
2618 | if (!sym) | |
2619 | return NULL_TREE; | |
2620 | ||
d4163395 | 2621 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2622 | { |
eeebe20b | 2623 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2624 | length = gfc_create_string_length (sym); |
2625 | else | |
eeebe20b | 2626 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2627 | if (TREE_CODE (length) == VAR_DECL |
2628 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2629 | gfc_add_decl_to_function (length); |
4ee9c684 | 2630 | } |
2631 | ||
2632 | if (gfc_return_by_reference (sym)) | |
2633 | { | |
c750cc52 | 2634 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2635 | |
c750cc52 | 2636 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2637 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2638 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2639 | |
2640 | TREE_USED (decl) = 1; | |
2641 | if (sym->as) | |
2642 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2643 | } | |
2644 | else | |
2645 | { | |
2646 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2647 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2648 | |
3350e716 | 2649 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2650 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2651 | VAR_DECL, get_identifier (name), |
3350e716 | 2652 | gfc_sym_type (sym)); |
2653 | else | |
1e71b314 | 2654 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2655 | VAR_DECL, get_identifier (name), |
3350e716 | 2656 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2657 | DECL_ARTIFICIAL (decl) = 1; |
2658 | DECL_EXTERNAL (decl) = 0; | |
2659 | TREE_PUBLIC (decl) = 0; | |
2660 | TREE_USED (decl) = 1; | |
764f1175 | 2661 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2662 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2663 | |
2664 | layout_decl (decl, 0); | |
2665 | ||
c750cc52 | 2666 | if (parent_flag) |
2667 | gfc_add_decl_to_parent_function (decl); | |
2668 | else | |
2669 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2670 | } |
2671 | ||
c750cc52 | 2672 | if (parent_flag) |
2673 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2674 | else | |
2675 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2676 | |
2677 | return decl; | |
2678 | } | |
2679 | ||
2680 | ||
2681 | /* Builds a function decl. The remaining parameters are the types of the | |
2682 | function arguments. Negative nargs indicates a varargs function. */ | |
2683 | ||
8ce86007 | 2684 | static tree |
2685 | build_library_function_decl_1 (tree name, const char *spec, | |
2686 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2687 | { |
f1f41a6c | 2688 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2689 | tree fntype; |
2690 | tree fndecl; | |
4ee9c684 | 2691 | int n; |
2692 | ||
2693 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2694 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2695 | |
4ee9c684 | 2696 | /* Create a list of the argument types. */ |
f1f41a6c | 2697 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2698 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2699 | { |
5edc3af9 | 2700 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2701 | arglist->quick_push (argtype); |
4ee9c684 | 2702 | } |
2703 | ||
2704 | /* Build the function type and decl. */ | |
5edc3af9 | 2705 | if (nargs >= 0) |
2706 | fntype = build_function_type_vec (rettype, arglist); | |
2707 | else | |
2708 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2709 | if (spec) |
2710 | { | |
2711 | tree attr_args = build_tree_list (NULL_TREE, | |
2712 | build_string (strlen (spec), spec)); | |
2713 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2714 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2715 | fntype = build_type_attribute_variant (fntype, attrs); | |
2716 | } | |
e60a6f7b | 2717 | fndecl = build_decl (input_location, |
2718 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2719 | |
2720 | /* Mark this decl as external. */ | |
2721 | DECL_EXTERNAL (fndecl) = 1; | |
2722 | TREE_PUBLIC (fndecl) = 1; | |
2723 | ||
4ee9c684 | 2724 | pushdecl (fndecl); |
2725 | ||
b2c4af5e | 2726 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2727 | |
2728 | return fndecl; | |
2729 | } | |
2730 | ||
8ce86007 | 2731 | /* Builds a function decl. The remaining parameters are the types of the |
2732 | function arguments. Negative nargs indicates a varargs function. */ | |
2733 | ||
2734 | tree | |
2735 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2736 | { | |
2737 | tree ret; | |
2738 | va_list args; | |
2739 | va_start (args, nargs); | |
2740 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2741 | va_end (args); | |
2742 | return ret; | |
2743 | } | |
2744 | ||
2745 | /* Builds a function decl. The remaining parameters are the types of the | |
2746 | function arguments. Negative nargs indicates a varargs function. | |
2747 | The SPEC parameter specifies the function argument and return type | |
2748 | specification according to the fnspec function type attribute. */ | |
2749 | ||
4bf69bc3 | 2750 | tree |
8ce86007 | 2751 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2752 | tree rettype, int nargs, ...) | |
2753 | { | |
2754 | tree ret; | |
2755 | va_list args; | |
2756 | va_start (args, nargs); | |
2757 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2758 | va_end (args); | |
2759 | return ret; | |
2760 | } | |
2761 | ||
4ee9c684 | 2762 | static void |
2763 | gfc_build_intrinsic_function_decls (void) | |
2764 | { | |
90ba9145 | 2765 | tree gfc_int4_type_node = gfc_get_int_type (4); |
2766 | tree gfc_int8_type_node = gfc_get_int_type (8); | |
920e54ef | 2767 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 2768 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 2769 | tree pchar1_type_node = gfc_get_pchar_type (1); |
2770 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 2771 | |
4ee9c684 | 2772 | /* String functions. */ |
241ecdc7 | 2773 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
2774 | get_identifier (PREFIX("compare_string")), "..R.R", | |
2775 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
2776 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2777 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 2778 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 2779 | |
2780 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
2781 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
2782 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
2783 | gfc_charlen_type_node, pchar1_type_node, | |
2784 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 2785 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 2786 | |
2787 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
2788 | get_identifier (PREFIX("string_len_trim")), "..R", | |
2789 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2790 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 2791 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 2792 | |
2793 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
2794 | get_identifier (PREFIX("string_index")), "..R.R.", | |
2795 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2796 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2797 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 2798 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 2799 | |
2800 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
2801 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
2802 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2803 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2804 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 2805 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 2806 | |
2807 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
2808 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
2809 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2810 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2811 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 2812 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 2813 | |
2814 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
2815 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
2816 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2817 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
2818 | pchar1_type_node); | |
2819 | ||
2820 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
2821 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
2822 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2823 | build_pointer_type (pchar1_type_node), integer_type_node, | |
2824 | integer_type_node); | |
2825 | ||
2826 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
2827 | get_identifier (PREFIX("adjustl")), ".W.R", | |
2828 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2829 | pchar1_type_node); | |
bc351485 | 2830 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 2831 | |
2832 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
2833 | get_identifier (PREFIX("adjustr")), ".W.R", | |
2834 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2835 | pchar1_type_node); | |
bc351485 | 2836 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 2837 | |
2838 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
2839 | get_identifier (PREFIX("select_string")), ".R.R.", | |
2840 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2841 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 2842 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 2843 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 2844 | |
2845 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2846 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
2847 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
2848 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2849 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 2850 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 2851 | |
2852 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2853 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
2854 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
2855 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
2856 | pchar4_type_node); | |
bc351485 | 2857 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 2858 | |
2859 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2860 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
2861 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2862 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 2863 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 2864 | |
2865 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
2866 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
2867 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2868 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2869 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 2870 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 2871 | |
2872 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
2873 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
2874 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2875 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2876 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 2877 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 2878 | |
2879 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
2880 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
2881 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2882 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2883 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 2884 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 2885 | |
2886 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2887 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
2888 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2889 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
2890 | pchar4_type_node); | |
2891 | ||
2892 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
2893 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
2894 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2895 | build_pointer_type (pchar4_type_node), integer_type_node, | |
2896 | integer_type_node); | |
2897 | ||
2898 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
2899 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
2900 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2901 | pchar4_type_node); | |
bc351485 | 2902 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 2903 | |
2904 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
2905 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
2906 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2907 | pchar4_type_node); | |
bc351485 | 2908 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 2909 | |
2910 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2911 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
2912 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2913 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 2914 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 2915 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 2916 | |
2917 | ||
2918 | /* Conversion between character kinds. */ | |
2919 | ||
241ecdc7 | 2920 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
2921 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
2922 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
2923 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 2924 | |
241ecdc7 | 2925 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
2926 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
2927 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
2928 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 2929 | |
40b806de | 2930 | /* Misc. functions. */ |
5fcc6ec2 | 2931 | |
241ecdc7 | 2932 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
2933 | get_identifier (PREFIX("ttynam")), ".W", | |
2934 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2935 | integer_type_node); | |
2936 | ||
2937 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
2938 | get_identifier (PREFIX("fdate")), ".W", | |
2939 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
2940 | ||
2941 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
2942 | get_identifier (PREFIX("ctime")), ".W", | |
2943 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2944 | gfc_int8_type_node); | |
2945 | ||
2946 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
2947 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
2948 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 2949 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 2950 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 2951 | |
2952 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
2953 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
2954 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 2955 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 2956 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 2957 | |
2958 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
2959 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
2960 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
2961 | pvoid_type_node); | |
537824d1 | 2962 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 2963 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 2964 | |
4ee9c684 | 2965 | /* Power functions. */ |
76834664 | 2966 | { |
920e54ef | 2967 | tree ctype, rtype, itype, jtype; |
2968 | int rkind, ikind, jkind; | |
2969 | #define NIKINDS 3 | |
2970 | #define NRKINDS 4 | |
2971 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
2972 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
2973 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
2974 | ||
2975 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 2976 | { |
920e54ef | 2977 | itype = gfc_get_int_type (ikinds[ikind]); |
2978 | ||
2979 | for (jkind=0; jkind < NIKINDS; jkind++) | |
2980 | { | |
2981 | jtype = gfc_get_int_type (ikinds[jkind]); | |
2982 | if (itype && jtype) | |
2983 | { | |
2984 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
2985 | ikinds[jkind]); | |
2986 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
2987 | gfc_build_library_function_decl (get_identifier (name), | |
2988 | jtype, 2, jtype, itype); | |
2177d98b | 2989 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 2990 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 2991 | } |
2992 | } | |
2993 | ||
2994 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 2995 | { |
920e54ef | 2996 | rtype = gfc_get_real_type (rkinds[rkind]); |
2997 | if (rtype && itype) | |
2998 | { | |
2999 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3000 | ikinds[ikind]); | |
3001 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3002 | gfc_build_library_function_decl (get_identifier (name), | |
3003 | rtype, 2, rtype, itype); | |
2177d98b | 3004 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3005 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3006 | } |
3007 | ||
3008 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3009 | if (ctype && itype) | |
3010 | { | |
3011 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3012 | ikinds[ikind]); | |
3013 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3014 | gfc_build_library_function_decl (get_identifier (name), | |
3015 | ctype, 2,ctype, itype); | |
2177d98b | 3016 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3017 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3018 | } |
76834664 | 3019 | } |
3020 | } | |
920e54ef | 3021 | #undef NIKINDS |
3022 | #undef NRKINDS | |
76834664 | 3023 | } |
3024 | ||
241ecdc7 | 3025 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3026 | get_identifier (PREFIX("ishftc4")), | |
3027 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3028 | gfc_int4_type_node); | |
bc351485 | 3029 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3030 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3031 | |
241ecdc7 | 3032 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3033 | get_identifier (PREFIX("ishftc8")), | |
3034 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3035 | gfc_int4_type_node); | |
bc351485 | 3036 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3037 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3038 | |
920e54ef | 3039 | if (gfc_int16_type_node) |
bc351485 | 3040 | { |
3041 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3042 | get_identifier (PREFIX("ishftc16")), |
3043 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3044 | gfc_int4_type_node); | |
bc351485 | 3045 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3046 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3047 | } | |
920e54ef | 3048 | |
4e8e57b0 | 3049 | /* BLAS functions. */ |
3050 | { | |
36c921b9 | 3051 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3052 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3053 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3054 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3055 | tree pz = build_pointer_type | |
3056 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3057 | ||
3058 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3059 | (get_identifier | |
3060 | (gfc_option.flag_underscoring ? "sgemm_" | |
3061 | : "sgemm"), | |
3062 | void_type_node, 15, pchar_type_node, | |
3063 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3064 | ps, pint, ps, ps, pint, integer_type_node, |
3065 | integer_type_node); | |
4e8e57b0 | 3066 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3067 | (get_identifier | |
3068 | (gfc_option.flag_underscoring ? "dgemm_" | |
3069 | : "dgemm"), | |
3070 | void_type_node, 15, pchar_type_node, | |
3071 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3072 | pd, pint, pd, pd, pint, integer_type_node, |
3073 | integer_type_node); | |
4e8e57b0 | 3074 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3075 | (get_identifier | |
3076 | (gfc_option.flag_underscoring ? "cgemm_" | |
3077 | : "cgemm"), | |
3078 | void_type_node, 15, pchar_type_node, | |
3079 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3080 | pc, pint, pc, pc, pint, integer_type_node, |
3081 | integer_type_node); | |
4e8e57b0 | 3082 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3083 | (get_identifier | |
3084 | (gfc_option.flag_underscoring ? "zgemm_" | |
3085 | : "zgemm"), | |
3086 | void_type_node, 15, pchar_type_node, | |
3087 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3088 | pz, pint, pz, pz, pint, integer_type_node, |
3089 | integer_type_node); | |
4e8e57b0 | 3090 | } |
3091 | ||
4ee9c684 | 3092 | /* Other functions. */ |
241ecdc7 | 3093 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3094 | get_identifier (PREFIX("size0")), ".R", | |
3095 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3096 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3097 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3098 | |
3099 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3100 | get_identifier (PREFIX("size1")), ".R", | |
3101 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3102 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3103 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3104 | |
3105 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3106 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3107 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3108 | } |
3109 | ||
3110 | ||
3111 | /* Make prototypes for runtime library functions. */ | |
3112 | ||
3113 | void | |
3114 | gfc_build_builtin_function_decls (void) | |
3115 | { | |
90ba9145 | 3116 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3117 | |
241ecdc7 | 3118 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3119 | get_identifier (PREFIX("stop_numeric")), | |
3120 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3121 | /* STOP doesn't return. */ |
98ccec97 | 3122 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3123 | ||
dff2ea5f | 3124 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3125 | get_identifier (PREFIX("stop_numeric_f08")), | |
3126 | void_type_node, 1, gfc_int4_type_node); | |
3127 | /* STOP doesn't return. */ | |
3128 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3129 | ||
241ecdc7 | 3130 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3131 | get_identifier (PREFIX("stop_string")), ".R.", | |
3132 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3133 | /* STOP doesn't return. */ |
241ecdc7 | 3134 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3135 | |
241ecdc7 | 3136 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3137 | get_identifier (PREFIX("error_stop_numeric")), | |
3138 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3139 | /* ERROR STOP doesn't return. */ |
3140 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3141 | ||
241ecdc7 | 3142 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3143 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3144 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3145 | /* ERROR STOP doesn't return. */ |
3146 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3147 | ||
241ecdc7 | 3148 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3149 | get_identifier (PREFIX("pause_numeric")), | |
3150 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3151 | |
241ecdc7 | 3152 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3153 | get_identifier (PREFIX("pause_string")), ".R.", | |
3154 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3155 | |
241ecdc7 | 3156 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3157 | get_identifier (PREFIX("runtime_error")), ".R", | |
3158 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3159 | /* The runtime_error function does not return. */ |
3160 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3161 | |
241ecdc7 | 3162 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3163 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3164 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3165 | /* The runtime_error_at function does not return. */ |
3166 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3167 | |
241ecdc7 | 3168 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3169 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3170 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3171 | ||
3172 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3173 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3174 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3175 | pchar_type_node); | |
3176 | ||
3177 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3178 | get_identifier (PREFIX("os_error")), ".R", | |
3179 | void_type_node, 1, pchar_type_node); | |
9915365e | 3180 | /* The runtime_error function does not return. */ |
3181 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3182 | ||
241ecdc7 | 3183 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3184 | get_identifier (PREFIX("set_args")), | |
3185 | void_type_node, 2, integer_type_node, | |
3186 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3187 | |
241ecdc7 | 3188 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3189 | get_identifier (PREFIX("set_fpe")), | |
3190 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3191 | |
56c7c2d7 | 3192 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3193 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3194 | get_identifier (PREFIX("set_options")), "..R", | |
3195 | void_type_node, 2, integer_type_node, | |
3196 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3197 | |
241ecdc7 | 3198 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3199 | get_identifier (PREFIX("set_convert")), | |
3200 | void_type_node, 1, integer_type_node); | |
15774a8b | 3201 | |
241ecdc7 | 3202 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3203 | get_identifier (PREFIX("set_record_marker")), | |
3204 | void_type_node, 1, integer_type_node); | |
f23886ab | 3205 | |
241ecdc7 | 3206 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3207 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3208 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3209 | |
8ce86007 | 3210 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3211 | get_identifier (PREFIX("internal_pack")), ".r", |
3212 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3213 | |
8ce86007 | 3214 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3215 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3216 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3217 | ||
3218 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3219 | get_identifier (PREFIX("associated")), ".RR", | |
3220 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3221 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3222 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3223 | |
70b5944a | 3224 | /* Coarray library calls. */ |
3225 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
3226 | { | |
3227 | tree pint_type, pppchar_type; | |
3228 | ||
3229 | pint_type = build_pointer_type (integer_type_node); | |
3230 | pppchar_type | |
3231 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3232 | ||
3233 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3234 | get_identifier (PREFIX("caf_init")), void_type_node, | |
3235 | 4, pint_type, pppchar_type, pint_type, pint_type); | |
3236 | ||
3237 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3238 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3239 | ||
a961ca30 | 3240 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3241 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3242 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3243 | pchar_type_node, integer_type_node); |
3244 | ||
3245 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3246 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3247 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3248 | |
70b5944a | 3249 | gfor_fndecl_caf_critical = gfc_build_library_function_decl ( |
3250 | get_identifier (PREFIX("caf_critical")), void_type_node, 0); | |
3251 | ||
3252 | gfor_fndecl_caf_end_critical = gfc_build_library_function_decl ( | |
3253 | get_identifier (PREFIX("caf_end_critical")), void_type_node, 0); | |
3254 | ||
3255 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3256 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
3257 | 3, pint_type, build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3258 | |
3259 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3260 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3261 | 5, integer_type_node, pint_type, pint_type, | |
3262 | build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3263 | |
3264 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3265 | get_identifier (PREFIX("caf_error_stop")), | |
3266 | void_type_node, 1, gfc_int4_type_node); | |
3267 | /* CAF's ERROR STOP doesn't return. */ | |
3268 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3269 | ||
3270 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3271 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3272 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3273 | /* CAF's ERROR STOP doesn't return. */ | |
3274 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
3275 | } | |
3276 | ||
4ee9c684 | 3277 | gfc_build_intrinsic_function_decls (); |
3278 | gfc_build_intrinsic_lib_fndecls (); | |
3279 | gfc_build_io_library_fndecls (); | |
3280 | } | |
3281 | ||
3282 | ||
231e961a | 3283 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3284 | |
c5faa799 | 3285 | static void |
3286 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3287 | gfc_wrapped_block *block) | |
4ee9c684 | 3288 | { |
c5faa799 | 3289 | stmtblock_t init; |
4ee9c684 | 3290 | |
b9c7fce7 | 3291 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3292 | |
c5faa799 | 3293 | gfc_start_block (&init); |
4ee9c684 | 3294 | |
3295 | /* Evaluate the string length expression. */ | |
c5faa799 | 3296 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3297 | |
c5faa799 | 3298 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3299 | |
c5faa799 | 3300 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3301 | } |
3302 | ||
3303 | ||
3304 | /* Allocate and cleanup an automatic character variable. */ | |
3305 | ||
c5faa799 | 3306 | static void |
3307 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3308 | { |
c5faa799 | 3309 | stmtblock_t init; |
4ee9c684 | 3310 | tree decl; |
4ee9c684 | 3311 | tree tmp; |
3312 | ||
22d678e8 | 3313 | gcc_assert (sym->backend_decl); |
eeebe20b | 3314 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3315 | |
3714c8b6 | 3316 | gfc_init_block (&init); |
4ee9c684 | 3317 | |
3318 | /* Evaluate the string length expression. */ | |
c5faa799 | 3319 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3320 | |
c5faa799 | 3321 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3322 | |
4ee9c684 | 3323 | decl = sym->backend_decl; |
3324 | ||
afcf285e | 3325 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3326 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3327 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3328 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3329 | |
c5faa799 | 3330 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3331 | } |
3332 | ||
c8f1568f | 3333 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3334 | ||
c5faa799 | 3335 | static void |
3336 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3337 | { |
c5faa799 | 3338 | stmtblock_t init; |
c8f1568f | 3339 | |
3340 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3341 | gfc_start_block (&init); |
c8f1568f | 3342 | |
3343 | /* Set the initial value to length. See the comments in | |
3344 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3345 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3346 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3347 | |
c5faa799 | 3348 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3349 | } |
3350 | ||
d4163395 | 3351 | static void |
3352 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3353 | { | |
3354 | tree t = *tp, var, val; | |
3355 | ||
3356 | if (t == NULL || t == error_mark_node) | |
3357 | return; | |
3358 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3359 | return; | |
3360 | ||
3361 | if (TREE_CODE (t) == SAVE_EXPR) | |
3362 | { | |
3363 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3364 | { | |
3365 | *tp = TREE_OPERAND (t, 0); | |
3366 | return; | |
3367 | } | |
3368 | val = TREE_OPERAND (t, 0); | |
3369 | } | |
3370 | else | |
3371 | val = t; | |
3372 | ||
3373 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3374 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3375 | gfc_add_modify (body, var, val); |
d4163395 | 3376 | if (TREE_CODE (t) == SAVE_EXPR) |
3377 | TREE_OPERAND (t, 0) = var; | |
3378 | *tp = var; | |
3379 | } | |
3380 | ||
3381 | static void | |
3382 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3383 | { | |
3384 | tree t; | |
3385 | ||
3386 | if (type == NULL || type == error_mark_node) | |
3387 | return; | |
3388 | ||
3389 | type = TYPE_MAIN_VARIANT (type); | |
3390 | ||
3391 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3392 | { | |
3393 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3394 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3395 | ||
3396 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3397 | { | |
3398 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3399 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3400 | } | |
3401 | } | |
3402 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3403 | { | |
3404 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3405 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3406 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3407 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3408 | ||
3409 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3410 | { | |
3411 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3412 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3413 | } | |
3414 | } | |
3415 | } | |
3416 | ||
3417 | /* Make sure all type sizes and array domains are either constant, | |
3418 | or variable or parameter decls. This is a simplified variant | |
3419 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3420 | variables in the expressions have been gimplified yet. | |
3421 | As type sizes and domains for various variable length arrays | |
3422 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3423 | time, without this routine gimplify_type_sizes in the middle-end | |
3424 | could result in the type sizes being gimplified earlier than where | |
3425 | those variables are initialized. */ | |
3426 | ||
3427 | void | |
3428 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3429 | { | |
3430 | tree type = TREE_TYPE (sym->backend_decl); | |
3431 | ||
3432 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3433 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3434 | { | |
3435 | if (! current_fake_result_decl) | |
3436 | return; | |
3437 | ||
3438 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3439 | } | |
3440 | ||
3441 | while (POINTER_TYPE_P (type)) | |
3442 | type = TREE_TYPE (type); | |
3443 | ||
3444 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3445 | { | |
3446 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3447 | ||
3448 | while (POINTER_TYPE_P (etype)) | |
3449 | etype = TREE_TYPE (etype); | |
3450 | ||
3451 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3452 | } | |
3453 | ||
3454 | gfc_trans_vla_type_sizes_1 (type, body); | |
3455 | } | |
3456 | ||
4ee9c684 | 3457 | |
f0d4969f | 3458 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3459 | and using trans_assignment to do the work. Set dealloc to false |
3460 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3461 | void |
3462 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3463 | { |
f0d4969f | 3464 | gfc_expr *e; |
87114d2e | 3465 | tree tmp; |
3466 | tree present; | |
3467 | ||
c5faa799 | 3468 | gcc_assert (block); |
3469 | ||
f0d4969f | 3470 | gcc_assert (!sym->attr.allocatable); |
3471 | gfc_set_sym_referenced (sym); | |
3472 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3473 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3474 | if (sym->attr.dummy && (sym->attr.optional |
3475 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3476 | { |
f0d4969f | 3477 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3478 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3479 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3480 | } |
c5faa799 | 3481 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3482 | gfc_free_expr (e); |
87114d2e | 3483 | } |
3484 | ||
3485 | ||
8714fc76 | 3486 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3487 | them their default initializer, if they do not have allocatable | |
3488 | components, they have their allocatable components deallocated. */ | |
3489 | ||
c5faa799 | 3490 | static void |
3491 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3492 | { |
c5faa799 | 3493 | stmtblock_t init; |
f0d4969f | 3494 | gfc_formal_arglist *f; |
8714fc76 | 3495 | tree tmp; |
5907c3ea | 3496 | tree present; |
f0d4969f | 3497 | |
c5faa799 | 3498 | gfc_init_block (&init); |
6777213b | 3499 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3500 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3501 | && !f->sym->attr.pointer |
3502 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3503 | { |
942ba353 | 3504 | tmp = NULL_TREE; |
3505 | ||
3506 | /* Note: Allocatables are excluded as they are already handled | |
3507 | by the caller. */ | |
3508 | if (!f->sym->attr.allocatable | |
3509 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3510 | { |
942ba353 | 3511 | stmtblock_t block; |
3512 | gfc_expr *e; | |
3513 | ||
3514 | gfc_init_block (&block); | |
3515 | f->sym->attr.referenced = 1; | |
3516 | e = gfc_lval_expr_from_sym (f->sym); | |
3517 | gfc_add_finalizer_call (&block, e); | |
3518 | gfc_free_expr (e); | |
3519 | tmp = gfc_finish_block (&block); | |
3520 | } | |
5907c3ea | 3521 | |
942ba353 | 3522 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
3523 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
3524 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
3525 | f->sym->backend_decl, | |
3526 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3527 | |
942ba353 | 3528 | if (tmp != NULL_TREE && (f->sym->attr.optional |
3529 | || f->sym->ns->proc_name->attr.entry_master)) | |
3530 | { | |
3531 | present = gfc_conv_expr_present (f->sym); | |
3532 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3533 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 3534 | } |
942ba353 | 3535 | |
3536 | if (tmp != NULL_TREE) | |
3537 | gfc_add_expr_to_block (&init, tmp); | |
3538 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 3539 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3540 | } |
c56d57d6 | 3541 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3542 | && f->sym->ts.type == BT_CLASS | |
3543 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 3544 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 3545 | { |
942ba353 | 3546 | stmtblock_t block; |
3547 | gfc_expr *e; | |
3548 | ||
3549 | gfc_init_block (&block); | |
3550 | f->sym->attr.referenced = 1; | |
3551 | e = gfc_lval_expr_from_sym (f->sym); | |
3552 | gfc_add_finalizer_call (&block, e); | |
3553 | gfc_free_expr (e); | |
3554 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 3555 | |
3556 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3557 | { | |
3558 | present = gfc_conv_expr_present (f->sym); | |
3559 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3560 | present, tmp, | |
3561 | build_empty_stmt (input_location)); | |
3562 | } | |
3563 | ||
3564 | gfc_add_expr_to_block (&init, tmp); | |
3565 | } | |
f0d4969f | 3566 | |
c5faa799 | 3567 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3568 | } |
3569 | ||
87114d2e | 3570 | |
4ee9c684 | 3571 | /* Generate function entry and exit code, and add it to the function body. |
3572 | This includes: | |
f888a3fb | 3573 | Allocation and initialization of array variables. |
4ee9c684 | 3574 | Allocation of character string variables. |
c8f1568f | 3575 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3576 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3577 | Initialization of ASSOCIATE names. |
0a96a7cc | 3578 | Automatic deallocation. */ |
4ee9c684 | 3579 | |
89ac8ba1 | 3580 | void |
3581 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3582 | { |
3583 | locus loc; | |
3584 | gfc_symbol *sym; | |
d4163395 | 3585 | gfc_formal_arglist *f; |
c5faa799 | 3586 | stmtblock_t tmpblock; |
25dd7350 | 3587 | bool seen_trans_deferred_array = false; |
617125a6 | 3588 | tree tmp = NULL; |
3589 | gfc_expr *e; | |
3590 | gfc_se se; | |
3591 | stmtblock_t init; | |
4ee9c684 | 3592 | |
3593 | /* Deal with implicit return variables. Explicit return variables will | |
3594 | already have been added. */ | |
3595 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3596 | { | |
3597 | if (!current_fake_result_decl) | |
3598 | { | |
c6871095 | 3599 | gfc_entry_list *el = NULL; |
3600 | if (proc_sym->attr.entry_master) | |
3601 | { | |
3602 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3603 | if (el->sym != el->sym->result) | |
3604 | break; | |
3605 | } | |
fa7b6574 | 3606 | /* TODO: move to the appropriate place in resolve.c. */ |
3607 | if (warn_return_type && el == NULL) | |
3608 | gfc_warning ("Return value of function '%s' at %L not set", | |
3609 | proc_sym->name, &proc_sym->declared_at); | |
4ee9c684 | 3610 | } |
c6871095 | 3611 | else if (proc_sym->as) |
4ee9c684 | 3612 | { |
d4163395 | 3613 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3614 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3615 | |
3616 | /* An automatic character length, pointer array result. */ | |
3617 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3618 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3619 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3620 | } |
3621 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3622 | { | |
617125a6 | 3623 | if (proc_sym->ts.deferred) |
3624 | { | |
3625 | tmp = NULL; | |
da2c4122 | 3626 | gfc_save_backend_locus (&loc); |
3627 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3628 | gfc_start_block (&init); |
3629 | /* Zero the string length on entry. */ | |
3630 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3631 | build_int_cst (gfc_charlen_type_node, 0)); | |
3632 | /* Null the pointer. */ | |
3633 | e = gfc_lval_expr_from_sym (proc_sym); | |
3634 | gfc_init_se (&se, NULL); | |
3635 | se.want_pointer = 1; | |
3636 | gfc_conv_expr (&se, e); | |
3637 | gfc_free_expr (e); | |
3638 | tmp = se.expr; | |
3639 | gfc_add_modify (&init, tmp, | |
3640 | fold_convert (TREE_TYPE (se.expr), | |
3641 | null_pointer_node)); | |
da2c4122 | 3642 | gfc_restore_backend_locus (&loc); |
617125a6 | 3643 | |
3644 | /* Pass back the string length on exit. */ | |
3645 | tmp = proc_sym->ts.u.cl->passed_length; | |
3646 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3647 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3648 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3649 | gfc_charlen_type_node, tmp, | |
3650 | proc_sym->ts.u.cl->backend_decl); | |
3651 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3652 | } | |
3653 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 3654 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3655 | } |
3656 | else | |
bdaed7d2 | 3657 | gcc_assert (gfc_option.flag_f2c |
3658 | && proc_sym->ts.type == BT_COMPLEX); | |
4ee9c684 | 3659 | } |
3660 | ||
87114d2e | 3661 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
3662 | should be done here so that the offsets and lbounds of arrays | |
3663 | are available. */ | |
da2c4122 | 3664 | gfc_save_backend_locus (&loc); |
3665 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 3666 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 3667 | gfc_restore_backend_locus (&loc); |
87114d2e | 3668 | |
4ee9c684 | 3669 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
3670 | { | |
2294b616 | 3671 | bool sym_has_alloc_comp = (sym->ts.type == BT_DERIVED) |
eeebe20b | 3672 | && sym->ts.u.derived->attr.alloc_comp; |
8f3f9eab | 3673 | if (sym->assoc) |
3c82e013 | 3674 | continue; |
3675 | ||
a56d63bc | 3676 | if (sym->attr.subref_array_pointer |
3677 | && GFC_DECL_SPAN (sym->backend_decl) | |
3678 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
3679 | { | |
3680 | gfc_init_block (&tmpblock); | |
3681 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
3682 | build_int_cst (gfc_array_index_type, 0)); | |
3683 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3684 | NULL_TREE); | |
3685 | } | |
3686 | ||
85ae3cab | 3687 | if (sym->ts.type == BT_CLASS |
3688 | && (sym->attr.save || gfc_option.flag_max_stack_var_size == 0) | |
fb139b21 | 3689 | && CLASS_DATA (sym)->attr.allocatable) |
3690 | { | |
3691 | tree vptr; | |
3692 | ||
3693 | if (UNLIMITED_POLY (sym)) | |
3694 | vptr = null_pointer_node; | |
3695 | else | |
3696 | { | |
3697 | gfc_symbol *vsym; | |
3698 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
3699 | vptr = gfc_get_symbol_decl (vsym); | |
3700 | vptr = gfc_build_addr_expr (NULL, vptr); | |
3701 | } | |
3702 | ||
3703 | if (CLASS_DATA (sym)->attr.dimension | |
3704 | || (CLASS_DATA (sym)->attr.codimension | |
3705 | && gfc_option.coarray != GFC_FCOARRAY_LIB)) | |
3706 | { | |
3707 | tmp = gfc_class_data_get (sym->backend_decl); | |
3708 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
3709 | } | |
3710 | else | |
3711 | tmp = null_pointer_node; | |
3712 | ||
3713 | DECL_INITIAL (sym->backend_decl) | |
3714 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
3715 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
3716 | } | |
3717 | else if (sym->attr.dimension || sym->attr.codimension) | |
4ee9c684 | 3718 | { |
f7a6fca4 | 3719 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ |
3720 | array_type tmp = sym->as->type; | |
3721 | if (tmp == AS_ASSUMED_SIZE && sym->as->cp_was_assumed) | |
3722 | tmp = AS_EXPLICIT; | |
3723 | switch (tmp) | |
4ee9c684 | 3724 | { |
3725 | case AS_EXPLICIT: | |
3726 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3727 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3728 | else if (sym->attr.pointer || sym->attr.allocatable) |
3729 | { | |
3730 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 3731 | { |
3732 | gfc_save_backend_locus (&loc); | |
3733 | gfc_set_backend_locus (&sym->declared_at); | |
3734 | gfc_trans_static_array_pointer (sym); | |
3735 | gfc_restore_backend_locus (&loc); | |
3736 | } | |
4ee9c684 | 3737 | else |
25dd7350 | 3738 | { |
3739 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3740 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3741 | } |
4ee9c684 | 3742 | } |
7c7db7f6 | 3743 | else if (sym->attr.codimension && TREE_STATIC (sym->backend_decl)) |
3744 | { | |
3745 | gfc_init_block (&tmpblock); | |
3746 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
3747 | &tmpblock, sym); | |
3748 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3749 | NULL_TREE); | |
3750 | continue; | |
3751 | } | |
a961ca30 | 3752 | else if (gfc_option.coarray != GFC_FCOARRAY_LIB) |
4ee9c684 | 3753 | { |
da2c4122 | 3754 | gfc_save_backend_locus (&loc); |
3755 | gfc_set_backend_locus (&sym->declared_at); | |
3756 | ||
25dd7350 | 3757 | if (sym_has_alloc_comp) |
3758 | { | |
3759 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3760 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3761 | } |
f0d4969f | 3762 | else if (sym->ts.type == BT_DERIVED |
3763 | && sym->value | |
3764 | && !sym->attr.data | |
3765 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3766 | { |
3767 | gfc_start_block (&tmpblock); | |
3768 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3769 | gfc_add_init_cleanup (block, |
c5faa799 | 3770 | gfc_finish_block (&tmpblock), |
3771 | NULL_TREE); | |
3772 | } | |
25dd7350 | 3773 | |
c5faa799 | 3774 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 3775 | sym, block); |
4671339c | 3776 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3777 | } |
3778 | break; | |
3779 | ||
3780 | case AS_ASSUMED_SIZE: | |
3781 | /* Must be a dummy parameter. */ | |
452695a8 | 3782 | gcc_assert (sym->attr.dummy || sym->as->cp_was_assumed); |
4ee9c684 | 3783 | |
3784 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 3785 | if (sym->attr.dummy) |
89ac8ba1 | 3786 | gfc_trans_g77_array (sym, block); |
c5faa799 | 3787 | break; |
4ee9c684 | 3788 | |
3789 | case AS_ASSUMED_SHAPE: | |
3790 | /* Must be a dummy parameter. */ | |
22d678e8 | 3791 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 3792 | |
89ac8ba1 | 3793 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3794 | break; |
3795 | ||
f00f6dd6 | 3796 | case AS_ASSUMED_RANK: |
4ee9c684 | 3797 | case AS_DEFERRED: |
25dd7350 | 3798 | seen_trans_deferred_array = true; |
89ac8ba1 | 3799 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3800 | break; |
3801 | ||
3802 | default: | |
22d678e8 | 3803 | gcc_unreachable (); |
4ee9c684 | 3804 | } |
25dd7350 | 3805 | if (sym_has_alloc_comp && !seen_trans_deferred_array) |
89ac8ba1 | 3806 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3807 | } |
fd23cc08 | 3808 | else if ((!sym->attr.dummy || sym->ts.deferred) |
3809 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 3810 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 3811 | continue; |
617125a6 | 3812 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 3813 | && (sym->attr.allocatable |
3814 | || (sym->ts.type == BT_CLASS | |
3815 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 3816 | { |
be125be0 | 3817 | if (!sym->attr.save && gfc_option.flag_max_stack_var_size != 0) |
908e9973 | 3818 | { |
d0d776fb | 3819 | tree descriptor = NULL_TREE; |
3820 | ||
908e9973 | 3821 | /* Nullify and automatic deallocation of allocatable |
3822 | scalars. */ | |
908e9973 | 3823 | e = gfc_lval_expr_from_sym (sym); |
3824 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 3825 | gfc_add_data_component (e); |
908e9973 | 3826 | |
3827 | gfc_init_se (&se, NULL); | |
fd23cc08 | 3828 | if (sym->ts.type != BT_CLASS |
3829 | || sym->ts.u.derived->attr.dimension | |
3830 | || sym->ts.u.derived->attr.codimension) | |
3831 | { | |
3832 | se.want_pointer = 1; | |
3833 | gfc_conv_expr (&se, e); | |
3834 | } | |
3835 | else if (sym->ts.type == BT_CLASS | |
3836 | && !CLASS_DATA (sym)->attr.dimension | |
3837 | && !CLASS_DATA (sym)->attr.codimension) | |
3838 | { | |
3839 | se.want_pointer = 1; | |
3840 | gfc_conv_expr (&se, e); | |
3841 | } | |
3842 | else | |
3843 | { | |
3844 | gfc_conv_expr (&se, e); | |
d0d776fb | 3845 | descriptor = se.expr; |
fd23cc08 | 3846 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
3847 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
3848 | } | |
908e9973 | 3849 | gfc_free_expr (e); |
3850 | ||
da2c4122 | 3851 | gfc_save_backend_locus (&loc); |
3852 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 3853 | gfc_start_block (&init); |
617125a6 | 3854 | |
3855 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3856 | { | |
3857 | /* Nullify when entering the scope. */ | |
3858 | gfc_add_modify (&init, se.expr, | |
3859 | fold_convert (TREE_TYPE (se.expr), | |
3860 | null_pointer_node)); | |
3861 | } | |
3862 | ||
8b9eb27e | 3863 | if ((sym->attr.dummy ||sym->attr.result) |
617125a6 | 3864 | && sym->ts.type == BT_CHARACTER |
3865 | && sym->ts.deferred) | |
3866 | { | |
3867 | /* Character length passed by reference. */ | |
3868 | tmp = sym->ts.u.cl->passed_length; | |
3869 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3870 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3871 | ||
3872 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3873 | /* Zero the string length when entering the scope. */ | |
3874 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
3875 | build_int_cst (gfc_charlen_type_node, 0)); | |
3876 | else | |
3877 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3878 | ||
da2c4122 | 3879 | gfc_restore_backend_locus (&loc); |
3880 | ||
617125a6 | 3881 | /* Pass the final character length back. */ |
3882 | if (sym->attr.intent != INTENT_IN) | |
3883 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3884 | gfc_charlen_type_node, tmp, | |
3885 | sym->ts.u.cl->backend_decl); | |
3886 | else | |
3887 | tmp = NULL_TREE; | |
3888 | } | |
da2c4122 | 3889 | else |
3890 | gfc_restore_backend_locus (&loc); | |
908e9973 | 3891 | |
3892 | /* Deallocate when leaving the scope. Nullifying is not | |
3893 | needed. */ | |
afb69dbf | 3894 | if (!sym->attr.result && !sym->attr.dummy |
3895 | && !sym->ns->proc_name->attr.is_main_program) | |
d0d776fb | 3896 | { |
3897 | if (sym->ts.type == BT_CLASS | |
3898 | && CLASS_DATA (sym)->attr.codimension) | |
3899 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
3900 | NULL_TREE, NULL_TREE, | |
3901 | NULL_TREE, true, NULL, | |
3902 | true); | |
3903 | else | |
c23adf93 | 3904 | { |
3905 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
3906 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, | |
3907 | true, expr, sym->ts); | |
3908 | gfc_free_expr (expr); | |
3909 | } | |
d0d776fb | 3910 | } |
afc44c79 | 3911 | if (sym->ts.type == BT_CLASS) |
3912 | { | |
3913 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 3914 | gfc_symbol *vtab; |
afc44c79 | 3915 | tree rhs; |
da2c4122 | 3916 | |
3917 | gfc_save_backend_locus (&loc); | |
3918 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 3919 | e = gfc_lval_expr_from_sym (sym); |
3920 | gfc_add_vptr_component (e); | |
3921 | gfc_init_se (&se, NULL); | |
3922 | se.want_pointer = 1; | |
3923 | gfc_conv_expr (&se, e); | |
3924 | gfc_free_expr (e); | |
a90fe829 | 3925 | if (UNLIMITED_POLY (sym)) |
3926 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
3927 | else | |
3928 | { | |
3929 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
3930 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
3931 | gfc_get_symbol_decl (vtab)); | |
3932 | } | |
afc44c79 | 3933 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 3934 | gfc_restore_backend_locus (&loc); |
afc44c79 | 3935 | } |
3936 | ||
89ac8ba1 | 3937 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 3938 | } |
0a96a7cc | 3939 | } |
617125a6 | 3940 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
3941 | { | |
3942 | tree tmp = NULL; | |
3943 | stmtblock_t init; | |
3944 | ||
3945 | /* If we get to here, all that should be left are pointers. */ | |
3946 | gcc_assert (sym->attr.pointer); | |
3947 | ||
3948 | if (sym->attr.dummy) | |
3949 | { | |
3950 | gfc_start_block (&init); | |
3951 | ||
3952 | /* Character length passed by reference. */ | |
3953 | tmp = sym->ts.u.cl->passed_length; | |
3954 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3955 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3956 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3957 | /* Pass the final character length back. */ | |
3958 | if (sym->attr.intent != INTENT_IN) | |
3959 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3960 | gfc_charlen_type_node, tmp, | |
3961 | sym->ts.u.cl->backend_decl); | |
3962 | else | |
3963 | tmp = NULL_TREE; | |
3964 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3965 | } | |
3966 | } | |
3e715c81 | 3967 | else if (sym->ts.deferred) |
3968 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
fabc1fc9 | 3969 | else if (sym_has_alloc_comp) |
89ac8ba1 | 3970 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3971 | else if (sym->ts.type == BT_CHARACTER) |
3972 | { | |
4671339c | 3973 | gfc_save_backend_locus (&loc); |
4ee9c684 | 3974 | gfc_set_backend_locus (&sym->declared_at); |
3975 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3976 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 3977 | else |
89ac8ba1 | 3978 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 3979 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3980 | } |
c8f1568f | 3981 | else if (sym->attr.assign) |
3982 | { | |
4671339c | 3983 | gfc_save_backend_locus (&loc); |
c8f1568f | 3984 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 3985 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 3986 | gfc_restore_backend_locus (&loc); |
c8f1568f | 3987 | } |
f0d4969f | 3988 | else if (sym->ts.type == BT_DERIVED |
3989 | && sym->value | |
3990 | && !sym->attr.data | |
3991 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3992 | { |
3993 | gfc_start_block (&tmpblock); | |
3994 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3995 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 3996 | NULL_TREE); |
3997 | } | |
a90fe829 | 3998 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 3999 | gcc_unreachable (); |
4ee9c684 | 4000 | } |
4001 | ||
c5faa799 | 4002 | gfc_init_block (&tmpblock); |
d4163395 | 4003 | |
6777213b | 4004 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4005 | { |
4006 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4007 | { | |
eeebe20b | 4008 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4009 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4010 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4011 | } |
1e853e89 | 4012 | } |
d4163395 | 4013 | |
4014 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4015 | && current_fake_result_decl != NULL) | |
4016 | { | |
eeebe20b | 4017 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4018 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4019 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4020 | } |
4021 | ||
89ac8ba1 | 4022 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4023 | } |
4024 | ||
df4d540f | 4025 | static GTY ((param_is (struct module_htab_entry))) htab_t module_htab; |
4026 | ||
4027 | /* Hash and equality functions for module_htab. */ | |
4028 | ||
4029 | static hashval_t | |
4030 | module_htab_do_hash (const void *x) | |
4031 | { | |
4032 | return htab_hash_string (((const struct module_htab_entry *)x)->name); | |
4033 | } | |
4034 | ||
4035 | static int | |
4036 | module_htab_eq (const void *x1, const void *x2) | |
4037 | { | |
4038 | return strcmp ((((const struct module_htab_entry *)x1)->name), | |
4039 | (const char *)x2) == 0; | |
4040 | } | |
4041 | ||
4042 | /* Hash and equality functions for module_htab's decls. */ | |
4043 | ||
4044 | static hashval_t | |
4045 | module_htab_decls_hash (const void *x) | |
4046 | { | |
4047 | const_tree t = (const_tree) x; | |
4048 | const_tree n = DECL_NAME (t); | |
4049 | if (n == NULL_TREE) | |
4050 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4051 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4052 | } |
4053 | ||
4054 | static int | |
4055 | module_htab_decls_eq (const void *x1, const void *x2) | |
4056 | { | |
4057 | const_tree t1 = (const_tree) x1; | |
4058 | const_tree n1 = DECL_NAME (t1); | |
4059 | if (n1 == NULL_TREE) | |
4060 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
4061 | return strcmp (IDENTIFIER_POINTER (n1), (const char *) x2) == 0; | |
4062 | } | |
4063 | ||
4064 | struct module_htab_entry * | |
4065 | gfc_find_module (const char *name) | |
4066 | { | |
4067 | void **slot; | |
4068 | ||
4069 | if (! module_htab) | |
4070 | module_htab = htab_create_ggc (10, module_htab_do_hash, | |
4071 | module_htab_eq, NULL); | |
4072 | ||
4073 | slot = htab_find_slot_with_hash (module_htab, name, | |
4074 | htab_hash_string (name), INSERT); | |
4075 | if (*slot == NULL) | |
4076 | { | |
ba72912a | 4077 | struct module_htab_entry *entry = ggc_alloc_cleared_module_htab_entry (); |
df4d540f | 4078 | |
4079 | entry->name = gfc_get_string (name); | |
4080 | entry->decls = htab_create_ggc (10, module_htab_decls_hash, | |
4081 | module_htab_decls_eq, NULL); | |
4082 | *slot = (void *) entry; | |
4083 | } | |
4084 | return (struct module_htab_entry *) *slot; | |
4085 | } | |
4086 | ||
4087 | void | |
4088 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4089 | { | |
4090 | void **slot; | |
4091 | const char *name; | |
4092 | ||
4093 | if (DECL_NAME (decl)) | |
4094 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4095 | else | |
4096 | { | |
4097 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4098 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4099 | } | |
4100 | slot = htab_find_slot_with_hash (entry->decls, name, | |
4101 | htab_hash_string (name), INSERT); | |
4102 | if (*slot == NULL) | |
4103 | *slot = (void *) decl; | |
4104 | } | |
4105 | ||
4106 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 4107 | |
4108 | /* Output an initialized decl for a module variable. */ | |
4109 | ||
4110 | static void | |
4111 | gfc_create_module_variable (gfc_symbol * sym) | |
4112 | { | |
4113 | tree decl; | |
4ee9c684 | 4114 | |
d77f260f | 4115 | /* Module functions with alternate entries are dealt with later and |
4116 | would get caught by the next condition. */ | |
4117 | if (sym->attr.entry) | |
4118 | return; | |
4119 | ||
c5d33754 | 4120 | /* Make sure we convert the types of the derived types from iso_c_binding |
4121 | into (void *). */ | |
4122 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4123 | && sym->ts.type == BT_DERIVED) | |
4124 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4125 | ||
df4d540f | 4126 | if (sym->attr.flavor == FL_DERIVED |
4127 | && sym->backend_decl | |
4128 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4129 | { | |
4130 | decl = sym->backend_decl; | |
4131 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4132 | |
044bbd71 | 4133 | if (!sym->attr.use_assoc) |
9f1470cb | 4134 | { |
4135 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4136 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4137 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4138 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4139 | == sym->ns->proc_name->backend_decl); | |
4140 | } | |
df4d540f | 4141 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4142 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4143 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4144 | } | |
4145 | ||
cf269acc | 4146 | /* Only output variables, procedure pointers and array valued, |
4147 | or derived type, parameters. */ | |
4ee9c684 | 4148 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4149 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4150 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4151 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4152 | return; |
4153 | ||
df4d540f | 4154 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4155 | { | |
4156 | decl = sym->backend_decl; | |
16a40513 | 4157 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4158 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4159 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4160 | gfc_module_add_decl (cur_module, decl); | |
4161 | } | |
4162 | ||
d43a7f7f | 4163 | /* Don't generate variables from other modules. Variables from |
4164 | COMMONs will already have been generated. */ | |
4165 | if (sym->attr.use_assoc || sym->attr.in_common) | |
4ee9c684 | 4166 | return; |
4167 | ||
2b685f8e | 4168 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4169 | if (sym->backend_decl |
df4d540f | 4170 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4171 | return; | |
2b685f8e | 4172 | |
23d075f4 | 4173 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
4ee9c684 | 4174 | internal_error ("backend decl for module variable %s already exists", |
4175 | sym->name); | |
4176 | ||
4177 | /* We always want module variables to be created. */ | |
4178 | sym->attr.referenced = 1; | |
4179 | /* Create the decl. */ | |
4180 | decl = gfc_get_symbol_decl (sym); | |
4181 | ||
4ee9c684 | 4182 | /* Create the variable. */ |
4183 | pushdecl (decl); | |
df4d540f | 4184 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4185 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4186 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4187 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4188 | |
4189 | /* Also add length of strings. */ | |
4190 | if (sym->ts.type == BT_CHARACTER) | |
4191 | { | |
4192 | tree length; | |
4193 | ||
eeebe20b | 4194 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4195 | gcc_assert (length || sym->attr.proc_pointer); |
4196 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4197 | { |
4198 | pushdecl (length); | |
b2c4af5e | 4199 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4200 | } |
4201 | } | |
a961ca30 | 4202 | |
4203 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4204 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4205 | has_coarray_vars = true; | |
4ee9c684 | 4206 | } |
4207 | ||
51d9479b | 4208 | /* Emit debug information for USE statements. */ |
df4d540f | 4209 | |
4210 | static void | |
4211 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4212 | { | |
4213 | gfc_use_list *use_stmt; | |
4214 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4215 | { | |
4216 | struct module_htab_entry *entry | |
4217 | = gfc_find_module (use_stmt->module_name); | |
4218 | gfc_use_rename *rent; | |
4219 | ||
4220 | if (entry->namespace_decl == NULL) | |
4221 | { | |
4222 | entry->namespace_decl | |
e60a6f7b | 4223 | = build_decl (input_location, |
4224 | NAMESPACE_DECL, | |
df4d540f | 4225 | get_identifier (use_stmt->module_name), |
4226 | void_type_node); | |
4227 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4228 | } | |
51d9479b | 4229 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4230 | if (!use_stmt->only_flag) |
4231 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4232 | NULL_TREE, | |
4233 | ns->proc_name->backend_decl, | |
4234 | false); | |
4235 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4236 | { | |
4237 | tree decl, local_name; | |
4238 | void **slot; | |
4239 | ||
4240 | if (rent->op != INTRINSIC_NONE) | |
4241 | continue; | |
4242 | ||
4243 | slot = htab_find_slot_with_hash (entry->decls, rent->use_name, | |
4244 | htab_hash_string (rent->use_name), | |
4245 | INSERT); | |
4246 | if (*slot == NULL) | |
4247 | { | |
4248 | gfc_symtree *st; | |
4249 | ||
4250 | st = gfc_find_symtree (ns->sym_root, | |
4251 | rent->local_name[0] | |
4252 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4253 | |
4254 | /* The following can happen if a derived type is renamed. */ | |
4255 | if (!st) | |
4256 | { | |
4257 | char *name; | |
4258 | name = xstrdup (rent->local_name[0] | |
4259 | ? rent->local_name : rent->use_name); | |
4260 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4261 | st = gfc_find_symtree (ns->sym_root, name); | |
4262 | free (name); | |
4263 | gcc_assert (st); | |
4264 | } | |
857c96ba | 4265 | |
4266 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4267 | local symbol (see PR41062). */ | |
4268 | if (!st->n.sym->attr.use_assoc) | |
4269 | continue; | |
4270 | ||
51d9479b | 4271 | if (st->n.sym->backend_decl |
4272 | && DECL_P (st->n.sym->backend_decl) | |
4273 | && st->n.sym->module | |
4274 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4275 | { |
51d9479b | 4276 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4277 | || (TREE_CODE (st->n.sym->backend_decl) | |
4278 | != VAR_DECL)); | |
df4d540f | 4279 | decl = copy_node (st->n.sym->backend_decl); |
4280 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4281 | DECL_EXTERNAL (decl) = 1; | |
4282 | DECL_IGNORED_P (decl) = 0; | |
4283 | DECL_INITIAL (decl) = NULL_TREE; | |
4284 | } | |
4285 | else | |
4286 | { | |
4287 | *slot = error_mark_node; | |
4288 | htab_clear_slot (entry->decls, slot); | |
4289 | continue; | |
4290 | } | |
4291 | *slot = decl; | |
4292 | } | |
4293 | decl = (tree) *slot; | |
4294 | if (rent->local_name[0]) | |
4295 | local_name = get_identifier (rent->local_name); | |
4296 | else | |
4297 | local_name = NULL_TREE; | |
51d9479b | 4298 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4299 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4300 | ns->proc_name->backend_decl, | |
4301 | !use_stmt->only_flag); | |
4302 | } | |
4303 | } | |
4ee9c684 | 4304 | } |
4305 | ||
51d9479b | 4306 | |
2eb674c9 | 4307 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4308 | will handle. */ | |
4309 | ||
4310 | static bool | |
4311 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4312 | bool pointer) | |
4313 | { | |
4314 | gfc_constructor *c; | |
4315 | gfc_component *cm; | |
4316 | ||
4317 | if (pointer) | |
4318 | return true; | |
4319 | else if (array) | |
4320 | { | |
4321 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4322 | return true; | |
4323 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4324 | return check_constant_initializer (expr, ts, false, false); | |
4325 | else if (expr->expr_type != EXPR_ARRAY) | |
4326 | return false; | |
126387b5 | 4327 | for (c = gfc_constructor_first (expr->value.constructor); |
4328 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4329 | { |
4330 | if (c->iterator) | |
4331 | return false; | |
4332 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4333 | { | |
4334 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4335 | return false; | |
4336 | } | |
4337 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4338 | return false; | |
4339 | } | |
4340 | return true; | |
4341 | } | |
4342 | else switch (ts->type) | |
4343 | { | |
4344 | case BT_DERIVED: | |
4345 | if (expr->expr_type != EXPR_STRUCTURE) | |
4346 | return false; | |
eeebe20b | 4347 | cm = expr->ts.u.derived->components; |
126387b5 | 4348 | for (c = gfc_constructor_first (expr->value.constructor); |
4349 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4350 | { |
4351 | if (!c->expr || cm->attr.allocatable) | |
4352 | continue; | |
4353 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4354 | cm->attr.dimension, | |
4355 | cm->attr.pointer)) | |
4356 | return false; | |
4357 | } | |
4358 | return true; | |
4359 | default: | |
4360 | return expr->expr_type == EXPR_CONSTANT; | |
4361 | } | |
4362 | } | |
4363 | ||
4364 | /* Emit debug info for parameters and unreferenced variables with | |
4365 | initializers. */ | |
4366 | ||
4367 | static void | |
4368 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4369 | { | |
4370 | tree decl; | |
4371 | ||
4372 | if (sym->attr.flavor != FL_PARAMETER | |
4373 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4374 | return; | |
4375 | ||
4376 | if (sym->backend_decl != NULL | |
4377 | || sym->value == NULL | |
4378 | || sym->attr.use_assoc | |
4379 | || sym->attr.dummy | |
4380 | || sym->attr.result | |
4381 | || sym->attr.function | |
4382 | || sym->attr.intrinsic | |
4383 | || sym->attr.pointer | |
4384 | || sym->attr.allocatable | |
4385 | || sym->attr.cray_pointee | |
4386 | || sym->attr.threadprivate | |
4387 | || sym->attr.is_bind_c | |
4388 | || sym->attr.subref_array_pointer | |
4389 | || sym->attr.assign) | |
4390 | return; | |
4391 | ||
4392 | if (sym->ts.type == BT_CHARACTER) | |
4393 | { | |
eeebe20b | 4394 | gfc_conv_const_charlen (sym->ts.u.cl); |
4395 | if (sym->ts.u.cl->backend_decl == NULL | |
4396 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4397 | return; |
4398 | } | |
eeebe20b | 4399 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4400 | return; |
4401 | ||
4402 | if (sym->as) | |
4403 | { | |
4404 | int n; | |
4405 | ||
4406 | if (sym->as->type != AS_EXPLICIT) | |
4407 | return; | |
4408 | for (n = 0; n < sym->as->rank; n++) | |
4409 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4410 | || sym->as->upper[n] == NULL | |
4411 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4412 | return; | |
4413 | } | |
4414 | ||
4415 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4416 | sym->attr.dimension, false)) | |
4417 | return; | |
4418 | ||
a961ca30 | 4419 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
4420 | return; | |
4421 | ||
2eb674c9 | 4422 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4423 | decl = build_decl (input_location, |
4424 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4425 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4426 | if (sym->attr.flavor == FL_PARAMETER) | |
4427 | TREE_READONLY (decl) = 1; | |
4428 | gfc_set_decl_location (decl, &sym->declared_at); | |
4429 | if (sym->attr.dimension) | |
4430 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4431 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4432 | TREE_STATIC (decl) = 1; | |
4433 | TREE_USED (decl) = 1; | |
4434 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4435 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4436 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4437 | TREE_TYPE (decl), | |
4438 | sym->attr.dimension, | |
4439 | false, false); | |
2eb674c9 | 4440 | debug_hooks->global_decl (decl); |
4441 | } | |
4442 | ||
a961ca30 | 4443 | |
4444 | static void | |
4445 | generate_coarray_sym_init (gfc_symbol *sym) | |
4446 | { | |
4447 | tree tmp, size, decl, token; | |
4448 | ||
4449 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
a90fe829 | 4450 | || sym->attr.use_assoc || !sym->attr.referenced) |
a961ca30 | 4451 | return; |
4452 | ||
4453 | decl = sym->backend_decl; | |
4454 | TREE_USED(decl) = 1; | |
4455 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4456 | ||
4457 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 | |
4458 | to make sure the variable is not optimized away. */ | |
4459 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4460 | ||
4461 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
4462 | ||
a90fe829 | 4463 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 4464 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
4465 | fold_convert (size_type_node, size), | |
4466 | build_int_cst (size_type_node, 1)); | |
4467 | ||
a961ca30 | 4468 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4469 | { | |
4470 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4471 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4472 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4473 | } |
4474 | ||
4475 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4476 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4477 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
4478 | ||
4479 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, | |
7b186db6 | 4480 | build_int_cst (integer_type_node, |
4f5fe475 | 4481 | GFC_CAF_COARRAY_STATIC), /* type. */ |
a961ca30 | 4482 | token, null_pointer_node, /* token, stat. */ |
4483 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4484 | build_int_cst (integer_type_node, 0)); | |
a90fe829 | 4485 | |
a961ca30 | 4486 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); |
4487 | ||
4488 | ||
4489 | /* Handle "static" initializer. */ | |
4490 | if (sym->value) | |
4491 | { | |
4492 | sym->attr.pointer = 1; | |
4493 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4494 | true, false); | |
4495 | sym->attr.pointer = 0; | |
4496 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4497 | } | |
4498 | } | |
4499 | ||
4500 | ||
4501 | /* Generate constructor function to initialize static, nonallocatable | |
4502 | coarrays. */ | |
4503 | ||
4504 | static void | |
4505 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4506 | { | |
4507 | tree fndecl, tmp, decl, save_fn_decl; | |
4508 | ||
4509 | save_fn_decl = current_function_decl; | |
4510 | push_function_context (); | |
4511 | ||
4512 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4513 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4514 | create_tmp_var_name ("_caf_init"), tmp); | |
4515 | ||
4516 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4517 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4518 | ||
4519 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4520 | DECL_ARTIFICIAL (decl) = 1; | |
4521 | DECL_IGNORED_P (decl) = 1; | |
4522 | DECL_CONTEXT (decl) = fndecl; | |
4523 | DECL_RESULT (fndecl) = decl; | |
4524 | ||
4525 | pushdecl (fndecl); | |
4526 | current_function_decl = fndecl; | |
4527 | announce_function (fndecl); | |
4528 | ||
4529 | rest_of_decl_compilation (fndecl, 0, 0); | |
4530 | make_decl_rtl (fndecl); | |
00cf115c | 4531 | allocate_struct_function (fndecl, false); |
a961ca30 | 4532 | |
cde2be84 | 4533 | pushlevel (); |
a961ca30 | 4534 | gfc_init_block (&caf_init_block); |
4535 | ||
4536 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
4537 | ||
4538 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
4539 | decl = getdecls (); | |
4540 | ||
cde2be84 | 4541 | poplevel (1, 1); |
a961ca30 | 4542 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
4543 | ||
4544 | DECL_SAVED_TREE (fndecl) | |
4545 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
4546 | DECL_INITIAL (fndecl)); | |
4547 | dump_function (TDI_original, fndecl); | |
4548 | ||
4549 | cfun->function_end_locus = input_location; | |
4550 | set_cfun (NULL); | |
4551 | ||
4552 | if (decl_function_context (fndecl)) | |
4553 | (void) cgraph_create_node (fndecl); | |
4554 | else | |
4555 | cgraph_finalize_function (fndecl, true); | |
4556 | ||
4557 | pop_function_context (); | |
4558 | current_function_decl = save_fn_decl; | |
4559 | } | |
4560 | ||
4561 | ||
51d9479b | 4562 | /* Generate all the required code for module variables. */ |
4563 | ||
4564 | void | |
4565 | gfc_generate_module_vars (gfc_namespace * ns) | |
4566 | { | |
4567 | module_namespace = ns; | |
4568 | cur_module = gfc_find_module (ns->proc_name->name); | |
4569 | ||
4570 | /* Check if the frontend left the namespace in a reasonable state. */ | |
4571 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
4572 | ||
4573 | /* Generate COMMON blocks. */ | |
4574 | gfc_trans_common (ns); | |
4575 | ||
a961ca30 | 4576 | has_coarray_vars = false; |
4577 | ||
51d9479b | 4578 | /* Create decls for all the module variables. */ |
4579 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
4580 | ||
a961ca30 | 4581 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
4582 | generate_coarray_init (ns); | |
4583 | ||
51d9479b | 4584 | cur_module = NULL; |
4585 | ||
4586 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 4587 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 4588 | } |
4589 | ||
4590 | ||
4ee9c684 | 4591 | static void |
4592 | gfc_generate_contained_functions (gfc_namespace * parent) | |
4593 | { | |
4594 | gfc_namespace *ns; | |
4595 | ||
4596 | /* We create all the prototypes before generating any code. */ | |
4597 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4598 | { | |
4599 | /* Skip namespaces from used modules. */ | |
4600 | if (ns->parent != parent) | |
4601 | continue; | |
4602 | ||
d896f9b3 | 4603 | gfc_create_function_decl (ns, false); |
4ee9c684 | 4604 | } |
4605 | ||
4606 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4607 | { | |
4608 | /* Skip namespaces from used modules. */ | |
4609 | if (ns->parent != parent) | |
4610 | continue; | |
4611 | ||
4612 | gfc_generate_function_code (ns); | |
4613 | } | |
4614 | } | |
4615 | ||
4616 | ||
d95efb59 | 4617 | /* Drill down through expressions for the array specification bounds and |
4618 | character length calling generate_local_decl for all those variables | |
4619 | that have not already been declared. */ | |
4620 | ||
4621 | static void | |
4622 | generate_local_decl (gfc_symbol *); | |
4623 | ||
1acb400a | 4624 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 4625 | |
1acb400a | 4626 | static bool |
4627 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
4628 | int *f ATTRIBUTE_UNUSED) | |
4629 | { | |
4630 | if (e->expr_type != EXPR_VARIABLE | |
4631 | || sym == e->symtree->n.sym | |
d95efb59 | 4632 | || e->symtree->n.sym->mark |
4633 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 4634 | return false; |
d95efb59 | 4635 | |
1acb400a | 4636 | generate_local_decl (e->symtree->n.sym); |
4637 | return false; | |
4638 | } | |
d95efb59 | 4639 | |
1acb400a | 4640 | static void |
4641 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
4642 | { | |
4643 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 4644 | } |
4645 | ||
4646 | ||
f6d0e37a | 4647 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 4648 | |
4649 | static void | |
4650 | generate_dependency_declarations (gfc_symbol *sym) | |
4651 | { | |
4652 | int i; | |
4653 | ||
4654 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 4655 | && sym->ts.u.cl |
4656 | && sym->ts.u.cl->length | |
4657 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
4658 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 4659 | |
4660 | if (sym->as && sym->as->rank) | |
4661 | { | |
4662 | for (i = 0; i < sym->as->rank; i++) | |
4663 | { | |
4664 | generate_expr_decls (sym, sym->as->lower[i]); | |
4665 | generate_expr_decls (sym, sym->as->upper[i]); | |
4666 | } | |
4667 | } | |
4668 | } | |
4669 | ||
4670 | ||
4ee9c684 | 4671 | /* Generate decls for all local variables. We do this to ensure correct |
4672 | handling of expressions which only appear in the specification of | |
4673 | other functions. */ | |
4674 | ||
4675 | static void | |
4676 | generate_local_decl (gfc_symbol * sym) | |
4677 | { | |
4678 | if (sym->attr.flavor == FL_VARIABLE) | |
4679 | { | |
a961ca30 | 4680 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
4681 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4682 | has_coarray_vars = true; | |
4683 | ||
d95efb59 | 4684 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 4685 | generate_dependency_declarations (sym); |
d95efb59 | 4686 | |
4ee9c684 | 4687 | if (sym->attr.referenced) |
8714fc76 | 4688 | gfc_get_symbol_decl (sym); |
4acad347 | 4689 | |
4690 | /* Warnings for unused dummy arguments. */ | |
4691 | else if (sym->attr.dummy) | |
7c0ca46e | 4692 | { |
4acad347 | 4693 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
4694 | if (gfc_option.warn_unused_dummy_argument | |
4695 | && sym->attr.intent == INTENT_OUT) | |
4696 | { | |
4697 | if (sym->ts.type != BT_DERIVED) | |
4698 | gfc_warning ("Dummy argument '%s' at %L was declared " | |
4699 | "INTENT(OUT) but was not set", sym->name, | |
4700 | &sym->declared_at); | |
4701 | else if (!gfc_has_default_initializer (sym->ts.u.derived)) | |
4702 | gfc_warning ("Derived-type dummy argument '%s' at %L was " | |
4703 | "declared INTENT(OUT) but was not set and " | |
4704 | "does not have a default initializer", | |
4705 | sym->name, &sym->declared_at); | |
90a4a5a6 | 4706 | if (sym->backend_decl != NULL_TREE) |
4707 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 4708 | } |
4709 | else if (gfc_option.warn_unused_dummy_argument) | |
90a4a5a6 | 4710 | { |
4711 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
4acad347 | 4712 | &sym->declared_at); |
90a4a5a6 | 4713 | if (sym->backend_decl != NULL_TREE) |
4714 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4715 | } | |
7c0ca46e | 4716 | } |
4acad347 | 4717 | |
f888a3fb | 4718 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 4719 | block or a namelist. */ |
36609028 | 4720 | else if (warn_unused_variable |
1dbfac29 | 4721 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 4722 | { |
1dbfac29 | 4723 | if (sym->attr.use_only) |
4724 | { | |
4725 | gfc_warning ("Unused module variable '%s' which has been " | |
4726 | "explicitly imported at %L", sym->name, | |
4727 | &sym->declared_at); | |
4728 | if (sym->backend_decl != NULL_TREE) | |
4729 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4730 | } | |
4731 | else if (!sym->attr.use_assoc) | |
4732 | { | |
4733 | gfc_warning ("Unused variable '%s' declared at %L", | |
4734 | sym->name, &sym->declared_at); | |
4735 | if (sym->backend_decl != NULL_TREE) | |
4736 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4737 | } | |
90a4a5a6 | 4738 | } |
8714fc76 | 4739 | |
d4163395 | 4740 | /* For variable length CHARACTER parameters, the PARM_DECL already |
4741 | references the length variable, so force gfc_get_symbol_decl | |
4742 | even when not referenced. If optimize > 0, it will be optimized | |
4743 | away anyway. But do this only after emitting -Wunused-parameter | |
4744 | warning if requested. */ | |
8714fc76 | 4745 | if (sym->attr.dummy && !sym->attr.referenced |
4746 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 4747 | && sym->ts.u.cl->backend_decl != NULL |
4748 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 4749 | { |
4750 | sym->attr.referenced = 1; | |
4751 | gfc_get_symbol_decl (sym); | |
4752 | } | |
76776e6d | 4753 | |
d0163401 | 4754 | /* INTENT(out) dummy arguments and result variables with allocatable |
4755 | components are reset by default and need to be set referenced to | |
4756 | generate the code for nullification and automatic lengths. */ | |
4757 | if (!sym->attr.referenced | |
8714fc76 | 4758 | && sym->ts.type == BT_DERIVED |
eeebe20b | 4759 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 4760 | && !sym->attr.pointer |
d0163401 | 4761 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
4762 | || | |
4763 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 4764 | { |
4765 | sym->attr.referenced = 1; | |
4766 | gfc_get_symbol_decl (sym); | |
4767 | } | |
4768 | ||
e72f979a | 4769 | /* Check for dependencies in the array specification and string |
4770 | length, adding the necessary declarations to the function. We | |
4771 | mark the symbol now, as well as in traverse_ns, to prevent | |
4772 | getting stuck in a circular dependency. */ | |
4773 | sym->mark = 1; | |
4ee9c684 | 4774 | } |
5dd246c1 | 4775 | else if (sym->attr.flavor == FL_PARAMETER) |
4776 | { | |
6ecfe89d | 4777 | if (warn_unused_parameter |
f326eb81 | 4778 | && !sym->attr.referenced) |
4779 | { | |
4780 | if (!sym->attr.use_assoc) | |
4781 | gfc_warning ("Unused parameter '%s' declared at %L", sym->name, | |
4782 | &sym->declared_at); | |
4783 | else if (sym->attr.use_only) | |
4784 | gfc_warning ("Unused parameter '%s' which has been explicitly " | |
4785 | "imported at %L", sym->name, &sym->declared_at); | |
4786 | } | |
5dd246c1 | 4787 | } |
fa7b6574 | 4788 | else if (sym->attr.flavor == FL_PROCEDURE) |
4789 | { | |
4790 | /* TODO: move to the appropriate place in resolve.c. */ | |
4791 | if (warn_return_type | |
4792 | && sym->attr.function | |
4793 | && sym->result | |
4794 | && sym != sym->result | |
4795 | && !sym->result->attr.referenced | |
4796 | && !sym->attr.use_assoc | |
4797 | && sym->attr.if_source != IFSRC_IFBODY) | |
4798 | { | |
4799 | gfc_warning ("Return value '%s' of function '%s' declared at " | |
4800 | "%L not set", sym->result->name, sym->name, | |
4801 | &sym->result->declared_at); | |
4802 | ||
4803 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 4804 | sym->result->mark = 1; |
fa7b6574 | 4805 | } |
4806 | } | |
c5d33754 | 4807 | |
19ba2ad8 | 4808 | if (sym->attr.dummy == 1) |
4809 | { | |
4810 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
4811 | procedures if they are passed by value. The tree type for them will | |
4812 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
4813 | what C would do with characters passed by-value. The value attribute | |
4814 | implies the dummy is a scalar. */ | |
4815 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
4816 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
4817 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 4818 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 4819 | |
4820 | /* Unused procedure passed as dummy argument. */ | |
4821 | if (sym->attr.flavor == FL_PROCEDURE) | |
4822 | { | |
4823 | if (!sym->attr.referenced) | |
4824 | { | |
4825 | if (gfc_option.warn_unused_dummy_argument) | |
4826 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
a90fe829 | 4827 | &sym->declared_at); |
fc6338c7 | 4828 | } |
4829 | ||
4830 | /* Silence bogus "unused parameter" warnings from the | |
4831 | middle end. */ | |
4832 | if (sym->backend_decl != NULL_TREE) | |
4833 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
4834 | } | |
19ba2ad8 | 4835 | } |
4836 | ||
c5d33754 | 4837 | /* Make sure we convert the types of the derived types from iso_c_binding |
4838 | into (void *). */ | |
4839 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4840 | && sym->ts.type == BT_DERIVED) | |
4841 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 4842 | } |
4843 | ||
4844 | static void | |
4845 | generate_local_vars (gfc_namespace * ns) | |
4846 | { | |
4847 | gfc_traverse_ns (ns, generate_local_decl); | |
4848 | } | |
4849 | ||
4850 | ||
1b716045 | 4851 | /* Generate a switch statement to jump to the correct entry point. Also |
4852 | creates the label decls for the entry points. */ | |
4ee9c684 | 4853 | |
1b716045 | 4854 | static tree |
4855 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 4856 | { |
1b716045 | 4857 | stmtblock_t block; |
4858 | tree label; | |
4859 | tree tmp; | |
4860 | tree val; | |
4ee9c684 | 4861 | |
1b716045 | 4862 | gfc_init_block (&block); |
4863 | for (; el; el = el->next) | |
4864 | { | |
4865 | /* Add the case label. */ | |
b797d6d3 | 4866 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 4867 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 4868 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 4869 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 4870 | |
1b716045 | 4871 | /* And jump to the actual entry point. */ |
4872 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 4873 | tmp = build1_v (GOTO_EXPR, label); |
4874 | gfc_add_expr_to_block (&block, tmp); | |
4875 | ||
4876 | /* Save the label decl. */ | |
4877 | el->label = label; | |
4878 | } | |
4879 | tmp = gfc_finish_block (&block); | |
4880 | /* The first argument selects the entry point. */ | |
4881 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 4882 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
4883 | val, tmp, NULL_TREE); | |
1b716045 | 4884 | return tmp; |
4ee9c684 | 4885 | } |
4886 | ||
6374121b | 4887 | |
a4abf8a0 | 4888 | /* Add code to string lengths of actual arguments passed to a function against |
4889 | the expected lengths of the dummy arguments. */ | |
4890 | ||
4891 | static void | |
4892 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
4893 | { | |
4894 | gfc_formal_arglist *formal; | |
4895 | ||
6777213b | 4896 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 4897 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 4898 | && !formal->sym->ts.deferred) |
a4abf8a0 | 4899 | { |
4900 | enum tree_code comparison; | |
4901 | tree cond; | |
4902 | tree argname; | |
4903 | gfc_symbol *fsym; | |
4904 | gfc_charlen *cl; | |
4905 | const char *message; | |
4906 | ||
4907 | fsym = formal->sym; | |
eeebe20b | 4908 | cl = fsym->ts.u.cl; |
a4abf8a0 | 4909 | |
4910 | gcc_assert (cl); | |
4911 | gcc_assert (cl->passed_length != NULL_TREE); | |
4912 | gcc_assert (cl->backend_decl != NULL_TREE); | |
4913 | ||
4914 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
4915 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 4916 | that the actual string length is *at least* the expected one. |
4917 | Sequence association allows for a mismatch of the string length | |
4918 | if the actual argument is (part of) an array, but only if the | |
4919 | dummy argument is an array. (See "Sequence association" in | |
4920 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 4921 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 4922 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
4923 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 4924 | { |
4925 | comparison = NE_EXPR; | |
4926 | message = _("Actual string length does not match the declared one" | |
4927 | " for dummy argument '%s' (%ld/%ld)"); | |
4928 | } | |
be4be771 | 4929 | else if (fsym->as && fsym->as->rank != 0) |
4930 | continue; | |
a4abf8a0 | 4931 | else |
4932 | { | |
4933 | comparison = LT_EXPR; | |
4934 | message = _("Actual string length is shorter than the declared one" | |
4935 | " for dummy argument '%s' (%ld/%ld)"); | |
4936 | } | |
4937 | ||
4938 | /* Build the condition. For optional arguments, an actual length | |
4939 | of 0 is also acceptable if the associated string is NULL, which | |
4940 | means the argument was not passed. */ | |
fd779e1d | 4941 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
4942 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 4943 | if (fsym->attr.optional) |
4944 | { | |
4945 | tree not_absent; | |
4946 | tree not_0length; | |
4947 | tree absent_failed; | |
4948 | ||
fd779e1d | 4949 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4950 | boolean_type_node, | |
4951 | cl->passed_length, | |
385f3f36 | 4952 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 4953 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
4954 | fsym->attr.referenced = 1; | |
4955 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 4956 | |
fd779e1d | 4957 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4958 | boolean_type_node, not_0length, | |
4959 | not_absent); | |
a4abf8a0 | 4960 | |
fd779e1d | 4961 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4962 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 4963 | } |
4964 | ||
4965 | /* Build the runtime check. */ | |
4966 | argname = gfc_build_cstring_const (fsym->name); | |
4967 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
4968 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
4969 | message, argname, | |
4970 | fold_convert (long_integer_type_node, | |
4971 | cl->passed_length), | |
4972 | fold_convert (long_integer_type_node, | |
4973 | cl->backend_decl)); | |
4974 | } | |
4975 | } | |
4976 | ||
4977 | ||
642970a3 | 4978 | /* Generate the _gfortran_caf_this_image and _gfortran_caf_num_images |
4979 | global variables for -fcoarray=lib. They are placed into the translation | |
4980 | unit of the main program. Make sure that in one TU (the one of the main | |
4981 | program), the first call to gfc_init_coarray_decl is done with true. | |
4982 | Otherwise, expect link errors. */ | |
4983 | ||
70b5944a | 4984 | void |
642970a3 | 4985 | gfc_init_coarray_decl (bool main_tu) |
70b5944a | 4986 | { |
70b5944a | 4987 | if (gfc_option.coarray != GFC_FCOARRAY_LIB) |
4988 | return; | |
4989 | ||
4990 | if (gfort_gvar_caf_this_image || gfort_gvar_caf_num_images) | |
4991 | return; | |
4992 | ||
70b5944a | 4993 | push_cfun (cfun); |
4994 | ||
642970a3 | 4995 | gfort_gvar_caf_this_image |
4996 | = build_decl (input_location, VAR_DECL, | |
4997 | get_identifier (PREFIX("caf_this_image")), | |
4998 | integer_type_node); | |
70b5944a | 4999 | DECL_ARTIFICIAL (gfort_gvar_caf_this_image) = 1; |
5000 | TREE_USED (gfort_gvar_caf_this_image) = 1; | |
5001 | TREE_PUBLIC (gfort_gvar_caf_this_image) = 1; | |
642970a3 | 5002 | TREE_READONLY (gfort_gvar_caf_this_image) = 0; |
5003 | ||
5004 | if (main_tu) | |
5005 | TREE_STATIC (gfort_gvar_caf_this_image) = 1; | |
5006 | else | |
5007 | DECL_EXTERNAL (gfort_gvar_caf_this_image) = 1; | |
5008 | ||
5009 | pushdecl_top_level (gfort_gvar_caf_this_image); | |
70b5944a | 5010 | |
642970a3 | 5011 | gfort_gvar_caf_num_images |
5012 | = build_decl (input_location, VAR_DECL, | |
5013 | get_identifier (PREFIX("caf_num_images")), | |
5014 | integer_type_node); | |
70b5944a | 5015 | DECL_ARTIFICIAL (gfort_gvar_caf_num_images) = 1; |
5016 | TREE_USED (gfort_gvar_caf_num_images) = 1; | |
5017 | TREE_PUBLIC (gfort_gvar_caf_num_images) = 1; | |
642970a3 | 5018 | TREE_READONLY (gfort_gvar_caf_num_images) = 0; |
5019 | ||
5020 | if (main_tu) | |
5021 | TREE_STATIC (gfort_gvar_caf_num_images) = 1; | |
5022 | else | |
5023 | DECL_EXTERNAL (gfort_gvar_caf_num_images) = 1; | |
5024 | ||
5025 | pushdecl_top_level (gfort_gvar_caf_num_images); | |
70b5944a | 5026 | |
5027 | pop_cfun (); | |
70b5944a | 5028 | } |
5029 | ||
5030 | ||
7257a5d2 | 5031 | static void |
5032 | create_main_function (tree fndecl) | |
5033 | { | |
43702da6 | 5034 | tree old_context; |
7257a5d2 | 5035 | tree ftn_main; |
5036 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5037 | stmtblock_t body; | |
5038 | ||
43702da6 | 5039 | old_context = current_function_decl; |
5040 | ||
5041 | if (old_context) | |
5042 | { | |
5043 | push_function_context (); | |
5044 | saved_parent_function_decls = saved_function_decls; | |
5045 | saved_function_decls = NULL_TREE; | |
5046 | } | |
5047 | ||
7257a5d2 | 5048 | /* main() function must be declared with global scope. */ |
5049 | gcc_assert (current_function_decl == NULL_TREE); | |
5050 | ||
5051 | /* Declare the function. */ | |
5052 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5053 | build_pointer_type (pchar_type_node), | |
5054 | NULL_TREE); | |
0509d0ee | 5055 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5056 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5057 | main_identifier_node, tmp); | |
7257a5d2 | 5058 | DECL_EXTERNAL (ftn_main) = 0; |
5059 | TREE_PUBLIC (ftn_main) = 1; | |
5060 | TREE_STATIC (ftn_main) = 1; | |
5061 | DECL_ATTRIBUTES (ftn_main) | |
5062 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5063 | ||
5064 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5065 | result_decl = build_decl (input_location, |
5066 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5067 | DECL_ARTIFICIAL (result_decl) = 1; |
5068 | DECL_IGNORED_P (result_decl) = 1; | |
5069 | DECL_CONTEXT (result_decl) = ftn_main; | |
5070 | DECL_RESULT (ftn_main) = result_decl; | |
5071 | ||
5072 | pushdecl (ftn_main); | |
5073 | ||
5074 | /* Get the arguments. */ | |
5075 | ||
5076 | arglist = NULL_TREE; | |
5077 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5078 | ||
5079 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5080 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5081 | DECL_CONTEXT (argc) = ftn_main; |
5082 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5083 | TREE_READONLY (argc) = 1; | |
5084 | gfc_finish_decl (argc); | |
5085 | arglist = chainon (arglist, argc); | |
5086 | ||
5087 | typelist = TREE_CHAIN (typelist); | |
5088 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5089 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5090 | DECL_CONTEXT (argv) = ftn_main; |
5091 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5092 | TREE_READONLY (argv) = 1; | |
5093 | DECL_BY_REFERENCE (argv) = 1; | |
5094 | gfc_finish_decl (argv); | |
5095 | arglist = chainon (arglist, argv); | |
5096 | ||
5097 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5098 | current_function_decl = ftn_main; | |
5099 | announce_function (ftn_main); | |
5100 | ||
5101 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5102 | make_decl_rtl (ftn_main); | |
00cf115c | 5103 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5104 | pushlevel (); |
7257a5d2 | 5105 | |
5106 | gfc_init_block (&body); | |
5107 | ||
5108 | /* Call some libgfortran initialization routines, call then MAIN__(). */ | |
5109 | ||
70b5944a | 5110 | /* Call _gfortran_caf_init (*argc, ***argv, *this_image, *num_images). */ |
5111 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
5112 | { | |
5113 | tree pint_type, pppchar_type; | |
5114 | pint_type = build_pointer_type (integer_type_node); | |
5115 | pppchar_type | |
5116 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5117 | ||
642970a3 | 5118 | gfc_init_coarray_decl (true); |
70b5944a | 5119 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 4, |
5120 | gfc_build_addr_expr (pint_type, argc), | |
5121 | gfc_build_addr_expr (pppchar_type, argv), | |
5122 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_this_image), | |
5123 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_num_images)); | |
5124 | gfc_add_expr_to_block (&body, tmp); | |
5125 | } | |
5126 | ||
7257a5d2 | 5127 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5128 | TREE_USED (argc) = 1; |
5129 | TREE_USED (argv) = 1; | |
389dd41b | 5130 | tmp = build_call_expr_loc (input_location, |
5131 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5132 | gfc_add_expr_to_block (&body, tmp); |
5133 | ||
5134 | /* Add a call to set_options to set up the runtime library Fortran | |
5135 | language standard parameters. */ | |
5136 | { | |
5137 | tree array_type, array, var; | |
f1f41a6c | 5138 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5139 | |
5140 | /* Passing a new option to the library requires four modifications: | |
5141 | + add it to the tree_cons list below | |
5142 | + change the array size in the call to build_array_type | |
5143 | + change the first argument to the library call | |
5144 | gfor_fndecl_set_options | |
5145 | + modify the library (runtime/compile_options.c)! */ | |
5146 | ||
06f13dc1 | 5147 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5148 | build_int_cst (integer_type_node, | |
5149 | gfc_option.warn_std)); | |
5150 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5151 | build_int_cst (integer_type_node, | |
5152 | gfc_option.allow_std)); | |
5153 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5154 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5155 | /* TODO: This is the old -fdump-core option, which is unused but |
5156 | passed due to ABI compatibility; remove when bumping the | |
5157 | library ABI. */ | |
06f13dc1 | 5158 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5159 | build_int_cst (integer_type_node, | |
b2130263 | 5160 | 0)); |
06f13dc1 | 5161 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5162 | build_int_cst (integer_type_node, | |
5163 | gfc_option.flag_backtrace)); | |
5164 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5165 | build_int_cst (integer_type_node, | |
5166 | gfc_option.flag_sign_zero)); | |
5167 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5168 | build_int_cst (integer_type_node, | |
5169 | (gfc_option.rtcheck | |
5170 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5171 | /* TODO: This is the -frange-check option, which no longer affects |
5172 | library behavior; when bumping the library ABI this slot can be | |
5173 | reused for something else. As it is the last element in the | |
5174 | array, we can instead leave it out altogether. | |
06f13dc1 | 5175 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5176 | build_int_cst (integer_type_node, | |
5177 | gfc_option.flag_range_check)); | |
7f4f15dc | 5178 | */ |
7257a5d2 | 5179 | |
5180 | array_type = build_array_type (integer_type_node, | |
7f4f15dc | 5181 | build_index_type (size_int (6))); |
06f13dc1 | 5182 | array = build_constructor (array_type, v); |
7257a5d2 | 5183 | TREE_CONSTANT (array) = 1; |
5184 | TREE_STATIC (array) = 1; | |
5185 | ||
5186 | /* Create a static variable to hold the jump table. */ | |
5187 | var = gfc_create_var (array_type, "options"); | |
5188 | TREE_CONSTANT (var) = 1; | |
5189 | TREE_STATIC (var) = 1; | |
5190 | TREE_READONLY (var) = 1; | |
5191 | DECL_INITIAL (var) = array; | |
5192 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); | |
5193 | ||
389dd41b | 5194 | tmp = build_call_expr_loc (input_location, |
5195 | gfor_fndecl_set_options, 2, | |
7f4f15dc | 5196 | build_int_cst (integer_type_node, 7), var); |
7257a5d2 | 5197 | gfc_add_expr_to_block (&body, tmp); |
5198 | } | |
5199 | ||
5200 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5201 | the library will raise a FPE when needed. */ | |
5202 | if (gfc_option.fpe != 0) | |
5203 | { | |
389dd41b | 5204 | tmp = build_call_expr_loc (input_location, |
5205 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5206 | build_int_cst (integer_type_node, |
5207 | gfc_option.fpe)); | |
5208 | gfc_add_expr_to_block (&body, tmp); | |
5209 | } | |
5210 | ||
5211 | /* If this is the main program and an -fconvert option was provided, | |
5212 | add a call to set_convert. */ | |
5213 | ||
5214 | if (gfc_option.convert != GFC_CONVERT_NATIVE) | |
5215 | { | |
389dd41b | 5216 | tmp = build_call_expr_loc (input_location, |
5217 | gfor_fndecl_set_convert, 1, | |
7257a5d2 | 5218 | build_int_cst (integer_type_node, |
5219 | gfc_option.convert)); | |
5220 | gfc_add_expr_to_block (&body, tmp); | |
5221 | } | |
5222 | ||
5223 | /* If this is the main program and an -frecord-marker option was provided, | |
5224 | add a call to set_record_marker. */ | |
5225 | ||
5226 | if (gfc_option.record_marker != 0) | |
5227 | { | |
389dd41b | 5228 | tmp = build_call_expr_loc (input_location, |
5229 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5230 | build_int_cst (integer_type_node, |
5231 | gfc_option.record_marker)); | |
5232 | gfc_add_expr_to_block (&body, tmp); | |
5233 | } | |
5234 | ||
5235 | if (gfc_option.max_subrecord_length != 0) | |
5236 | { | |
389dd41b | 5237 | tmp = build_call_expr_loc (input_location, |
5238 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5239 | build_int_cst (integer_type_node, |
5240 | gfc_option.max_subrecord_length)); | |
5241 | gfc_add_expr_to_block (&body, tmp); | |
5242 | } | |
5243 | ||
5244 | /* Call MAIN__(). */ | |
389dd41b | 5245 | tmp = build_call_expr_loc (input_location, |
5246 | fndecl, 0); | |
7257a5d2 | 5247 | gfc_add_expr_to_block (&body, tmp); |
5248 | ||
43702da6 | 5249 | /* Mark MAIN__ as used. */ |
5250 | TREE_USED (fndecl) = 1; | |
5251 | ||
70b5944a | 5252 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
5253 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
a90fe829 | 5254 | { |
70b5944a | 5255 | /* Per F2008, 8.5.1 END of the main program implies a |
a90fe829 | 5256 | SYNC MEMORY. */ |
b9a16870 | 5257 | tmp = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
70b5944a | 5258 | tmp = build_call_expr_loc (input_location, tmp, 0); |
5259 | gfc_add_expr_to_block (&body, tmp); | |
5260 | ||
5261 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); | |
5262 | gfc_add_expr_to_block (&body, tmp); | |
5263 | } | |
5264 | ||
7257a5d2 | 5265 | /* "return 0". */ |
fd779e1d | 5266 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5267 | DECL_RESULT (ftn_main), | |
5268 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5269 | tmp = build1_v (RETURN_EXPR, tmp); |
5270 | gfc_add_expr_to_block (&body, tmp); | |
5271 | ||
5272 | ||
5273 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5274 | decl = getdecls (); | |
5275 | ||
5276 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5277 | poplevel (1, 1); |
7257a5d2 | 5278 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5279 | ||
5280 | DECL_SAVED_TREE (ftn_main) | |
5281 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5282 | DECL_INITIAL (ftn_main)); | |
5283 | ||
5284 | /* Output the GENERIC tree. */ | |
5285 | dump_function (TDI_original, ftn_main); | |
5286 | ||
bb982f66 | 5287 | cgraph_finalize_function (ftn_main, true); |
43702da6 | 5288 | |
5289 | if (old_context) | |
5290 | { | |
5291 | pop_function_context (); | |
5292 | saved_function_decls = saved_parent_function_decls; | |
5293 | } | |
5294 | current_function_decl = old_context; | |
7257a5d2 | 5295 | } |
5296 | ||
5297 | ||
89ac8ba1 | 5298 | /* Get the result expression for a procedure. */ |
5299 | ||
5300 | static tree | |
5301 | get_proc_result (gfc_symbol* sym) | |
5302 | { | |
5303 | if (sym->attr.subroutine || sym == sym->result) | |
5304 | { | |
5305 | if (current_fake_result_decl != NULL) | |
5306 | return TREE_VALUE (current_fake_result_decl); | |
5307 | ||
5308 | return NULL_TREE; | |
5309 | } | |
5310 | ||
5311 | return sym->result->backend_decl; | |
5312 | } | |
5313 | ||
5314 | ||
5315 | /* Generate an appropriate return-statement for a procedure. */ | |
5316 | ||
5317 | tree | |
5318 | gfc_generate_return (void) | |
5319 | { | |
5320 | gfc_symbol* sym; | |
5321 | tree result; | |
5322 | tree fndecl; | |
5323 | ||
5324 | sym = current_procedure_symbol; | |
5325 | fndecl = sym->backend_decl; | |
5326 | ||
5327 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5328 | result = NULL_TREE; | |
5329 | else | |
5330 | { | |
5331 | result = get_proc_result (sym); | |
5332 | ||
5333 | /* Set the return value to the dummy result variable. The | |
5334 | types may be different for scalar default REAL functions | |
5335 | with -ff2c, therefore we have to convert. */ | |
5336 | if (result != NULL_TREE) | |
5337 | { | |
5338 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5339 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5340 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5341 | result); | |
89ac8ba1 | 5342 | } |
5343 | } | |
5344 | ||
5345 | return build1_v (RETURN_EXPR, result); | |
5346 | } | |
5347 | ||
5348 | ||
4ee9c684 | 5349 | /* Generate code for a function. */ |
5350 | ||
5351 | void | |
5352 | gfc_generate_function_code (gfc_namespace * ns) | |
5353 | { | |
5354 | tree fndecl; | |
5355 | tree old_context; | |
5356 | tree decl; | |
5357 | tree tmp; | |
89ac8ba1 | 5358 | stmtblock_t init, cleanup; |
4ee9c684 | 5359 | stmtblock_t body; |
89ac8ba1 | 5360 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5361 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5362 | gfc_symbol *sym; |
89ac8ba1 | 5363 | gfc_symbol *previous_procedure_symbol; |
2294b616 | 5364 | int rank; |
e50e62f5 | 5365 | bool is_recursive; |
4ee9c684 | 5366 | |
5367 | sym = ns->proc_name; | |
89ac8ba1 | 5368 | previous_procedure_symbol = current_procedure_symbol; |
5369 | current_procedure_symbol = sym; | |
1b716045 | 5370 | |
4ee9c684 | 5371 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5372 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5373 | sym->tlink = sym; |
5374 | ||
5375 | /* Create the declaration for functions with global scope. */ | |
5376 | if (!sym->backend_decl) | |
d896f9b3 | 5377 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5378 | |
5379 | fndecl = sym->backend_decl; | |
5380 | old_context = current_function_decl; | |
5381 | ||
5382 | if (old_context) | |
5383 | { | |
5384 | push_function_context (); | |
5385 | saved_parent_function_decls = saved_function_decls; | |
5386 | saved_function_decls = NULL_TREE; | |
5387 | } | |
5388 | ||
1b716045 | 5389 | trans_function_start (sym); |
4ee9c684 | 5390 | |
89ac8ba1 | 5391 | gfc_init_block (&init); |
4ee9c684 | 5392 | |
c6871095 | 5393 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
5394 | { | |
5395 | /* Copy length backend_decls to all entry point result | |
5396 | symbols. */ | |
5397 | gfc_entry_list *el; | |
5398 | tree backend_decl; | |
5399 | ||
eeebe20b | 5400 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
5401 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 5402 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 5403 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 5404 | } |
5405 | ||
4ee9c684 | 5406 | /* Translate COMMON blocks. */ |
5407 | gfc_trans_common (ns); | |
5408 | ||
c750cc52 | 5409 | /* Null the parent fake result declaration if this namespace is |
5410 | a module function or an external procedures. */ | |
5411 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5412 | || ns->parent == NULL) | |
5413 | parent_fake_result_decl = NULL_TREE; | |
5414 | ||
2b685f8e | 5415 | gfc_generate_contained_functions (ns); |
5416 | ||
9579733e | 5417 | nonlocal_dummy_decls = NULL; |
5418 | nonlocal_dummy_decl_pset = NULL; | |
5419 | ||
a961ca30 | 5420 | has_coarray_vars = false; |
4ee9c684 | 5421 | generate_local_vars (ns); |
5b11d932 | 5422 | |
a961ca30 | 5423 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5424 | generate_coarray_init (ns); | |
5425 | ||
c750cc52 | 5426 | /* Keep the parent fake result declaration in module functions |
5427 | or external procedures. */ | |
5428 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5429 | || ns->parent == NULL) | |
5430 | current_fake_result_decl = parent_fake_result_decl; | |
5431 | else | |
5432 | current_fake_result_decl = NULL_TREE; | |
5433 | ||
89ac8ba1 | 5434 | is_recursive = sym->attr.recursive |
5435 | || (sym->attr.entry_master | |
5436 | && sym->ns->entries->sym->attr.recursive); | |
5437 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5438 | && !is_recursive | |
5439 | && !gfc_option.flag_recursive) | |
5440 | { | |
5441 | char * msg; | |
5442 | ||
5443 | asprintf (&msg, "Recursive call to nonrecursive procedure '%s'", | |
5444 | sym->name); | |
5445 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); | |
5446 | TREE_STATIC (recurcheckvar) = 1; | |
5447 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
5448 | gfc_add_expr_to_block (&init, recurcheckvar); | |
5449 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
5450 | &sym->declared_at, msg); | |
5451 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 5452 | free (msg); |
89ac8ba1 | 5453 | } |
4ee9c684 | 5454 | |
5455 | /* Now generate the code for the body of this function. */ | |
5456 | gfc_init_block (&body); | |
5457 | ||
5458 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 5459 | && sym->attr.subroutine) |
4ee9c684 | 5460 | { |
5461 | tree alternate_return; | |
c750cc52 | 5462 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 5463 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 5464 | } |
5465 | ||
1b716045 | 5466 | if (ns->entries) |
5467 | { | |
5468 | /* Jump to the correct entry point. */ | |
5469 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
5470 | gfc_add_expr_to_block (&body, tmp); | |
5471 | } | |
5472 | ||
a4abf8a0 | 5473 | /* If bounds-checking is enabled, generate code to check passed in actual |
5474 | arguments against the expected dummy argument attributes (e.g. string | |
5475 | lengths). */ | |
c1630d65 | 5476 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 5477 | add_argument_checking (&body, sym); |
5478 | ||
4ee9c684 | 5479 | tmp = gfc_trans_code (ns->code); |
5480 | gfc_add_expr_to_block (&body, tmp); | |
5481 | ||
4ee9c684 | 5482 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node) |
5483 | { | |
89ac8ba1 | 5484 | tree result = get_proc_result (sym); |
4ee9c684 | 5485 | |
42766cb3 | 5486 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 5487 | { |
deb7edfc | 5488 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
5489 | && sym->result == sym) | |
5490 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
5491 | null_pointer_node)); | |
42766cb3 | 5492 | else if (sym->ts.type == BT_CLASS |
5493 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 5494 | && CLASS_DATA (sym)->attr.dimension == 0 |
5495 | && sym->result == sym) | |
42766cb3 | 5496 | { |
5497 | tmp = CLASS_DATA (sym)->backend_decl; | |
5498 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
5499 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
5500 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
5501 | null_pointer_node)); | |
5502 | } | |
deb7edfc | 5503 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 5504 | && sym->ts.u.derived->attr.alloc_comp |
5505 | && !sym->attr.allocatable) | |
53169279 | 5506 | { |
5507 | rank = sym->as ? sym->as->rank : 0; | |
89ac8ba1 | 5508 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, result, rank); |
5509 | gfc_add_expr_to_block (&init, tmp); | |
53169279 | 5510 | } |
5176859a | 5511 | } |
e50e62f5 | 5512 | |
fa7b6574 | 5513 | if (result == NULL_TREE) |
5514 | { | |
5515 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 5516 | if (warn_return_type && sym == sym->result) |
fa7b6574 | 5517 | gfc_warning ("Return value of function '%s' at %L not set", |
5518 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5519 | if (warn_return_type) |
5520 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 5521 | } |
4ee9c684 | 5522 | else |
89ac8ba1 | 5523 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 5524 | } |
89ac8ba1 | 5525 | |
5526 | gfc_init_block (&cleanup); | |
5527 | ||
5528 | /* Reset recursion-check variable. */ | |
5529 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5530 | && !is_recursive | |
5ae82d58 | 5531 | && !gfc_option.gfc_flag_openmp |
89ac8ba1 | 5532 | && recurcheckvar != NULL_TREE) |
e50e62f5 | 5533 | { |
89ac8ba1 | 5534 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
5535 | recurcheckvar = NULL; | |
e50e62f5 | 5536 | } |
2294b616 | 5537 | |
89ac8ba1 | 5538 | /* Finish the function body and add init and cleanup code. */ |
5539 | tmp = gfc_finish_block (&body); | |
5540 | gfc_start_wrapped_block (&try_block, tmp); | |
5541 | /* Add code to create and cleanup arrays. */ | |
5542 | gfc_trans_deferred_vars (sym, &try_block); | |
5543 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
5544 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 5545 | |
5546 | /* Add all the decls we created during processing. */ | |
5547 | decl = saved_function_decls; | |
5548 | while (decl) | |
5549 | { | |
5550 | tree next; | |
5551 | ||
1767a056 | 5552 | next = DECL_CHAIN (decl); |
5553 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 5554 | pushdecl (decl); |
4ee9c684 | 5555 | decl = next; |
5556 | } | |
5557 | saved_function_decls = NULL_TREE; | |
5558 | ||
89ac8ba1 | 5559 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 5560 | decl = getdecls (); |
4ee9c684 | 5561 | |
5562 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5563 | poplevel (1, 1); |
4ee9c684 | 5564 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5565 | ||
e5004242 | 5566 | DECL_SAVED_TREE (fndecl) |
5567 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5568 | DECL_INITIAL (fndecl)); | |
5569 | ||
9579733e | 5570 | if (nonlocal_dummy_decls) |
5571 | { | |
5572 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
5573 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
5574 | pointer_set_destroy (nonlocal_dummy_decl_pset); | |
5575 | nonlocal_dummy_decls = NULL; | |
5576 | nonlocal_dummy_decl_pset = NULL; | |
5577 | } | |
5578 | ||
4ee9c684 | 5579 | /* Output the GENERIC tree. */ |
5580 | dump_function (TDI_original, fndecl); | |
5581 | ||
5582 | /* Store the end of the function, so that we get good line number | |
5583 | info for the epilogue. */ | |
5584 | cfun->function_end_locus = input_location; | |
5585 | ||
5586 | /* We're leaving the context of this function, so zap cfun. | |
5587 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
5588 | tree_rest_of_compilation. */ | |
87d4aa85 | 5589 | set_cfun (NULL); |
4ee9c684 | 5590 | |
5591 | if (old_context) | |
5592 | { | |
5593 | pop_function_context (); | |
5594 | saved_function_decls = saved_parent_function_decls; | |
5595 | } | |
5596 | current_function_decl = old_context; | |
5597 | ||
8b01dcb7 | 5598 | if (decl_function_context (fndecl) && gfc_option.coarray != GFC_FCOARRAY_LIB |
a961ca30 | 5599 | && has_coarray_vars) |
6374121b | 5600 | /* Register this function with cgraph just far enough to get it |
a961ca30 | 5601 | added to our parent's nested function list. |
5602 | If there are static coarrays in this function, the nested _caf_init | |
5603 | function has already called cgraph_create_node, which also created | |
5604 | the cgraph node for this function. */ | |
460beda6 | 5605 | (void) cgraph_create_node (fndecl); |
4ee9c684 | 5606 | else |
bb982f66 | 5607 | cgraph_finalize_function (fndecl, true); |
df4d540f | 5608 | |
5609 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5610 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 5611 | |
5612 | if (sym->attr.is_main_program) | |
5613 | create_main_function (fndecl); | |
89ac8ba1 | 5614 | |
5615 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 5616 | } |
5617 | ||
7257a5d2 | 5618 | |
4ee9c684 | 5619 | void |
5620 | gfc_generate_constructors (void) | |
5621 | { | |
22d678e8 | 5622 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 5623 | #if 0 |
5624 | tree fnname; | |
5625 | tree type; | |
5626 | tree fndecl; | |
5627 | tree decl; | |
5628 | tree tmp; | |
5629 | ||
5630 | if (gfc_static_ctors == NULL_TREE) | |
5631 | return; | |
5632 | ||
db85cc4f | 5633 | fnname = get_file_function_name ("I"); |
e1036019 | 5634 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 5635 | |
e60a6f7b | 5636 | fndecl = build_decl (input_location, |
5637 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 5638 | TREE_PUBLIC (fndecl) = 1; |
5639 | ||
e60a6f7b | 5640 | decl = build_decl (input_location, |
5641 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 5642 | DECL_ARTIFICIAL (decl) = 1; |
5643 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 5644 | DECL_CONTEXT (decl) = fndecl; |
5645 | DECL_RESULT (fndecl) = decl; | |
5646 | ||
5647 | pushdecl (fndecl); | |
5648 | ||
5649 | current_function_decl = fndecl; | |
5650 | ||
b2c4af5e | 5651 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 5652 | |
b2c4af5e | 5653 | make_decl_rtl (fndecl); |
4ee9c684 | 5654 | |
00cf115c | 5655 | allocate_struct_function (fndecl, false); |
4ee9c684 | 5656 | |
cde2be84 | 5657 | pushlevel (); |
4ee9c684 | 5658 | |
5659 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
5660 | { | |
389dd41b | 5661 | tmp = build_call_expr_loc (input_location, |
5662 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 5663 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 5664 | } |
5665 | ||
e5004242 | 5666 | decl = getdecls (); |
cde2be84 | 5667 | poplevel (1, 1); |
4ee9c684 | 5668 | |
5669 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 5670 | DECL_SAVED_TREE (fndecl) |
5671 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5672 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 5673 | |
5674 | free_after_parsing (cfun); | |
5675 | free_after_compilation (cfun); | |
5676 | ||
6148a911 | 5677 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 5678 | |
5679 | current_function_decl = NULL_TREE; | |
5680 | #endif | |
5681 | } | |
5682 | ||
9ec7c303 | 5683 | /* Translates a BLOCK DATA program unit. This means emitting the |
5684 | commons contained therein plus their initializations. We also emit | |
5685 | a globally visible symbol to make sure that each BLOCK DATA program | |
5686 | unit remains unique. */ | |
5687 | ||
5688 | void | |
5689 | gfc_generate_block_data (gfc_namespace * ns) | |
5690 | { | |
5691 | tree decl; | |
5692 | tree id; | |
5693 | ||
b31f705b | 5694 | /* Tell the backend the source location of the block data. */ |
5695 | if (ns->proc_name) | |
5696 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
5697 | else | |
5698 | gfc_set_backend_locus (&gfc_current_locus); | |
5699 | ||
5700 | /* Process the DATA statements. */ | |
9ec7c303 | 5701 | gfc_trans_common (ns); |
5702 | ||
b31f705b | 5703 | /* Create a global symbol with the mane of the block data. This is to |
5704 | generate linker errors if the same name is used twice. It is never | |
5705 | really used. */ | |
9ec7c303 | 5706 | if (ns->proc_name) |
5707 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
5708 | else | |
5709 | id = get_identifier ("__BLOCK_DATA__"); | |
5710 | ||
e60a6f7b | 5711 | decl = build_decl (input_location, |
5712 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 5713 | TREE_PUBLIC (decl) = 1; |
5714 | TREE_STATIC (decl) = 1; | |
df4d540f | 5715 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 5716 | |
5717 | pushdecl (decl); | |
5718 | rest_of_decl_compilation (decl, 1, 0); | |
5719 | } | |
5720 | ||
b549d2a5 | 5721 | |
6a7084d7 | 5722 | /* Process the local variables of a BLOCK construct. */ |
5723 | ||
5724 | void | |
3c82e013 | 5725 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 5726 | { |
5727 | tree decl; | |
5728 | ||
5729 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 5730 | has_coarray_vars = false; |
5731 | ||
6a7084d7 | 5732 | generate_local_vars (ns); |
5733 | ||
a961ca30 | 5734 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5735 | generate_coarray_init (ns); | |
5736 | ||
6a7084d7 | 5737 | decl = saved_local_decls; |
5738 | while (decl) | |
5739 | { | |
5740 | tree next; | |
5741 | ||
1767a056 | 5742 | next = DECL_CHAIN (decl); |
5743 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 5744 | pushdecl (decl); |
5745 | decl = next; | |
5746 | } | |
5747 | saved_local_decls = NULL_TREE; | |
5748 | } | |
5749 | ||
5750 | ||
4ee9c684 | 5751 | #include "gt-fortran-trans-decl.h" |