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Commit | Line | Data |
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4ee9c684 | 1 | /* Backend function setup |
617125a6 | 2 | Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, |
d0d776fb | 3 | 2011, 2012 |
cfaf579d | 4 | Free Software Foundation, Inc. |
4ee9c684 | 5 | Contributed by Paul Brook |
6 | ||
c84b470d | 7 | This file is part of GCC. |
4ee9c684 | 8 | |
c84b470d | 9 | GCC is free software; you can redistribute it and/or modify it under |
10 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 11 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 12 | version. |
4ee9c684 | 13 | |
c84b470d | 14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
4ee9c684 | 18 | |
19 | You should have received a copy of the GNU General Public License | |
bdabe786 | 20 | along with GCC; see the file COPYING3. If not see |
21 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 22 | |
23 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
24 | ||
25 | #include "config.h" | |
26 | #include "system.h" | |
27 | #include "coretypes.h" | |
cb4070e0 | 28 | #include "tm.h" |
4ee9c684 | 29 | #include "tree.h" |
30 | #include "tree-dump.h" | |
989adef3 | 31 | #include "gimple.h" /* For create_tmp_var_raw. */ |
4ee9c684 | 32 | #include "ggc.h" |
7cbc820e | 33 | #include "diagnostic-core.h" /* For internal_error. */ |
34 | #include "toplev.h" /* For announce_function. */ | |
4ee9c684 | 35 | #include "target.h" |
36 | #include "function.h" | |
4ee9c684 | 37 | #include "flags.h" |
38 | #include "cgraph.h" | |
df4d540f | 39 | #include "debug.h" |
4ee9c684 | 40 | #include "gfortran.h" |
9579733e | 41 | #include "pointer-set.h" |
126387b5 | 42 | #include "constructor.h" |
4ee9c684 | 43 | #include "trans.h" |
44 | #include "trans-types.h" | |
45 | #include "trans-array.h" | |
46 | #include "trans-const.h" | |
47 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
48 | #include "trans-stmt.h" | |
49 | ||
50 | #define MAX_LABEL_VALUE 99999 | |
51 | ||
52 | ||
53 | /* Holds the result of the function if no result variable specified. */ | |
54 | ||
55 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 56 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 57 | |
4ee9c684 | 58 | |
59 | /* Holds the variable DECLs for the current function. */ | |
60 | ||
d4163395 | 61 | static GTY(()) tree saved_function_decls; |
62 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 63 | |
9579733e | 64 | static struct pointer_set_t *nonlocal_dummy_decl_pset; |
65 | static GTY(()) tree nonlocal_dummy_decls; | |
4ee9c684 | 66 | |
6a7084d7 | 67 | /* Holds the variable DECLs that are locals. */ |
68 | ||
69 | static GTY(()) tree saved_local_decls; | |
70 | ||
4ee9c684 | 71 | /* The namespace of the module we're currently generating. Only used while |
72 | outputting decls for module variables. Do not rely on this being set. */ | |
73 | ||
74 | static gfc_namespace *module_namespace; | |
75 | ||
89ac8ba1 | 76 | /* The currently processed procedure symbol. */ |
77 | static gfc_symbol* current_procedure_symbol = NULL; | |
78 | ||
4ee9c684 | 79 | |
a961ca30 | 80 | /* With -fcoarray=lib: For generating the registering call |
81 | of static coarrays. */ | |
82 | static bool has_coarray_vars; | |
83 | static stmtblock_t caf_init_block; | |
84 | ||
85 | ||
4ee9c684 | 86 | /* List of static constructor functions. */ |
87 | ||
88 | tree gfc_static_ctors; | |
89 | ||
90 | ||
91 | /* Function declarations for builtin library functions. */ | |
92 | ||
4ee9c684 | 93 | tree gfor_fndecl_pause_numeric; |
94 | tree gfor_fndecl_pause_string; | |
95 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 96 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 97 | tree gfor_fndecl_stop_string; |
070cc790 | 98 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 99 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 100 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 101 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 102 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 103 | tree gfor_fndecl_os_error; |
50ad5fa2 | 104 | tree gfor_fndecl_generate_error; |
7257a5d2 | 105 | tree gfor_fndecl_set_args; |
8c84a5de | 106 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 107 | tree gfor_fndecl_set_options; |
15774a8b | 108 | tree gfor_fndecl_set_convert; |
f23886ab | 109 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 110 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 111 | tree gfor_fndecl_ctime; |
112 | tree gfor_fndecl_fdate; | |
dbc97b88 | 113 | tree gfor_fndecl_ttynam; |
4ee9c684 | 114 | tree gfor_fndecl_in_pack; |
115 | tree gfor_fndecl_in_unpack; | |
116 | tree gfor_fndecl_associated; | |
117 | ||
118 | ||
70b5944a | 119 | /* Coarray run-time library function decls. */ |
120 | tree gfor_fndecl_caf_init; | |
121 | tree gfor_fndecl_caf_finalize; | |
a961ca30 | 122 | tree gfor_fndecl_caf_register; |
d0d776fb | 123 | tree gfor_fndecl_caf_deregister; |
70b5944a | 124 | tree gfor_fndecl_caf_critical; |
125 | tree gfor_fndecl_caf_end_critical; | |
126 | tree gfor_fndecl_caf_sync_all; | |
127 | tree gfor_fndecl_caf_sync_images; | |
128 | tree gfor_fndecl_caf_error_stop; | |
129 | tree gfor_fndecl_caf_error_stop_str; | |
130 | ||
131 | /* Coarray global variables for num_images/this_image. */ | |
132 | ||
133 | tree gfort_gvar_caf_num_images; | |
134 | tree gfort_gvar_caf_this_image; | |
135 | ||
136 | ||
4ee9c684 | 137 | /* Math functions. Many other math functions are handled in |
138 | trans-intrinsic.c. */ | |
139 | ||
920e54ef | 140 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 141 | tree gfor_fndecl_math_ishftc4; |
142 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 143 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 144 | |
145 | ||
146 | /* String functions. */ | |
147 | ||
4ee9c684 | 148 | tree gfor_fndecl_compare_string; |
149 | tree gfor_fndecl_concat_string; | |
150 | tree gfor_fndecl_string_len_trim; | |
151 | tree gfor_fndecl_string_index; | |
152 | tree gfor_fndecl_string_scan; | |
153 | tree gfor_fndecl_string_verify; | |
154 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 155 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 156 | tree gfor_fndecl_adjustl; |
157 | tree gfor_fndecl_adjustr; | |
b44437b9 | 158 | tree gfor_fndecl_select_string; |
40b806de | 159 | tree gfor_fndecl_compare_string_char4; |
160 | tree gfor_fndecl_concat_string_char4; | |
161 | tree gfor_fndecl_string_len_trim_char4; | |
162 | tree gfor_fndecl_string_index_char4; | |
163 | tree gfor_fndecl_string_scan_char4; | |
164 | tree gfor_fndecl_string_verify_char4; | |
165 | tree gfor_fndecl_string_trim_char4; | |
166 | tree gfor_fndecl_string_minmax_char4; | |
167 | tree gfor_fndecl_adjustl_char4; | |
168 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 169 | tree gfor_fndecl_select_string_char4; |
170 | ||
171 | ||
172 | /* Conversion between character kinds. */ | |
173 | tree gfor_fndecl_convert_char1_to_char4; | |
174 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 175 | |
176 | ||
177 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 178 | tree gfor_fndecl_size0; |
179 | tree gfor_fndecl_size1; | |
9b057c29 | 180 | tree gfor_fndecl_iargc; |
4ee9c684 | 181 | |
59e2a584 | 182 | /* Intrinsic functions implemented in Fortran. */ |
183 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 184 | tree gfor_fndecl_si_kind; |
185 | tree gfor_fndecl_sr_kind; | |
186 | ||
4e8e57b0 | 187 | /* BLAS gemm functions. */ |
188 | tree gfor_fndecl_sgemm; | |
189 | tree gfor_fndecl_dgemm; | |
190 | tree gfor_fndecl_cgemm; | |
191 | tree gfor_fndecl_zgemm; | |
192 | ||
4ee9c684 | 193 | |
194 | static void | |
195 | gfc_add_decl_to_parent_function (tree decl) | |
196 | { | |
22d678e8 | 197 | gcc_assert (decl); |
4ee9c684 | 198 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
199 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 200 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 201 | saved_parent_function_decls = decl; |
202 | } | |
203 | ||
204 | void | |
205 | gfc_add_decl_to_function (tree decl) | |
206 | { | |
22d678e8 | 207 | gcc_assert (decl); |
4ee9c684 | 208 | TREE_USED (decl) = 1; |
209 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 210 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 211 | saved_function_decls = decl; |
212 | } | |
213 | ||
6a7084d7 | 214 | static void |
215 | add_decl_as_local (tree decl) | |
216 | { | |
217 | gcc_assert (decl); | |
218 | TREE_USED (decl) = 1; | |
219 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 220 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 221 | saved_local_decls = decl; |
222 | } | |
223 | ||
4ee9c684 | 224 | |
b797d6d3 | 225 | /* Build a backend label declaration. Set TREE_USED for named labels. |
226 | The context of the label is always the current_function_decl. All | |
227 | labels are marked artificial. */ | |
4ee9c684 | 228 | |
229 | tree | |
230 | gfc_build_label_decl (tree label_id) | |
231 | { | |
232 | /* 2^32 temporaries should be enough. */ | |
233 | static unsigned int tmp_num = 1; | |
234 | tree label_decl; | |
235 | char *label_name; | |
236 | ||
237 | if (label_id == NULL_TREE) | |
238 | { | |
239 | /* Build an internal label name. */ | |
240 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
241 | label_id = get_identifier (label_name); | |
242 | } | |
243 | else | |
244 | label_name = NULL; | |
245 | ||
246 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 247 | label_decl = build_decl (input_location, |
248 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 249 | DECL_CONTEXT (label_decl) = current_function_decl; |
250 | DECL_MODE (label_decl) = VOIDmode; | |
251 | ||
b797d6d3 | 252 | /* We always define the label as used, even if the original source |
253 | file never references the label. We don't want all kinds of | |
254 | spurious warnings for old-style Fortran code with too many | |
255 | labels. */ | |
256 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 257 | |
b797d6d3 | 258 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 259 | return label_decl; |
260 | } | |
261 | ||
262 | ||
b31f705b | 263 | /* Set the backend source location of a decl. */ |
264 | ||
265 | void | |
266 | gfc_set_decl_location (tree decl, locus * loc) | |
267 | { | |
b31f705b | 268 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 269 | } |
270 | ||
271 | ||
4ee9c684 | 272 | /* Return the backend label declaration for a given label structure, |
273 | or create it if it doesn't exist yet. */ | |
274 | ||
275 | tree | |
276 | gfc_get_label_decl (gfc_st_label * lp) | |
277 | { | |
4ee9c684 | 278 | if (lp->backend_decl) |
279 | return lp->backend_decl; | |
280 | else | |
281 | { | |
282 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
283 | tree label_decl; | |
284 | ||
285 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 286 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 287 | |
288 | /* Build a mangled name for the label. */ | |
289 | sprintf (label_name, "__label_%.6d", lp->value); | |
290 | ||
291 | /* Build the LABEL_DECL node. */ | |
292 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
293 | ||
294 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 295 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 296 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 297 | else |
298 | DECL_ARTIFICIAL (label_decl) = 1; | |
299 | ||
300 | /* Store the label in the label list and return the LABEL_DECL. */ | |
301 | lp->backend_decl = label_decl; | |
302 | return label_decl; | |
303 | } | |
304 | } | |
305 | ||
306 | ||
307 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
308 | ||
309 | static tree | |
310 | gfc_sym_identifier (gfc_symbol * sym) | |
311 | { | |
0509d0ee | 312 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
313 | return (get_identifier ("MAIN__")); | |
314 | else | |
315 | return (get_identifier (sym->name)); | |
4ee9c684 | 316 | } |
317 | ||
318 | ||
319 | /* Construct mangled name from symbol name. */ | |
320 | ||
321 | static tree | |
322 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
323 | { | |
324 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
325 | ||
c5d33754 | 326 | /* Prevent the mangling of identifiers that have an assigned |
327 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 328 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
329 | return get_identifier (sym->binding_label); | |
c5d33754 | 330 | |
4f0fae8e | 331 | if (sym->module == NULL) |
4ee9c684 | 332 | return gfc_sym_identifier (sym); |
333 | else | |
334 | { | |
f08a3f6f | 335 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 336 | return get_identifier (name); |
337 | } | |
338 | } | |
339 | ||
340 | ||
341 | /* Construct mangled function name from symbol name. */ | |
342 | ||
343 | static tree | |
344 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
345 | { | |
346 | int has_underscore; | |
347 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
348 | ||
c5d33754 | 349 | /* It may be possible to simply use the binding label if it's |
350 | provided, and remove the other checks. Then we could use it | |
351 | for other things if we wished. */ | |
352 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 353 | sym->binding_label) |
c5d33754 | 354 | /* use the binding label rather than the mangled name */ |
355 | return get_identifier (sym->binding_label); | |
356 | ||
4f0fae8e | 357 | if (sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 358 | || (sym->module != NULL && (sym->attr.external |
359 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4ee9c684 | 360 | { |
a2f97da7 | 361 | /* Main program is mangled into MAIN__. */ |
362 | if (sym->attr.is_main_program) | |
363 | return get_identifier ("MAIN__"); | |
364 | ||
365 | /* Intrinsic procedures are never mangled. */ | |
366 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 367 | return get_identifier (sym->name); |
368 | ||
369 | if (gfc_option.flag_underscoring) | |
370 | { | |
371 | has_underscore = strchr (sym->name, '_') != 0; | |
372 | if (gfc_option.flag_second_underscore && has_underscore) | |
373 | snprintf (name, sizeof name, "%s__", sym->name); | |
374 | else | |
375 | snprintf (name, sizeof name, "%s_", sym->name); | |
376 | return get_identifier (name); | |
377 | } | |
378 | else | |
379 | return get_identifier (sym->name); | |
380 | } | |
381 | else | |
382 | { | |
f08a3f6f | 383 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 384 | return get_identifier (name); |
385 | } | |
386 | } | |
387 | ||
388 | ||
1236e28b | 389 | void |
390 | gfc_set_decl_assembler_name (tree decl, tree name) | |
391 | { | |
392 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
393 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
394 | } | |
395 | ||
396 | ||
5ed82495 | 397 | /* Returns true if a variable of specified size should go on the stack. */ |
398 | ||
399 | int | |
400 | gfc_can_put_var_on_stack (tree size) | |
401 | { | |
402 | unsigned HOST_WIDE_INT low; | |
403 | ||
404 | if (!INTEGER_CST_P (size)) | |
405 | return 0; | |
406 | ||
407 | if (gfc_option.flag_max_stack_var_size < 0) | |
408 | return 1; | |
409 | ||
410 | if (TREE_INT_CST_HIGH (size) != 0) | |
411 | return 0; | |
412 | ||
413 | low = TREE_INT_CST_LOW (size); | |
414 | if (low > (unsigned HOST_WIDE_INT) gfc_option.flag_max_stack_var_size) | |
415 | return 0; | |
416 | ||
417 | /* TODO: Set a per-function stack size limit. */ | |
418 | ||
419 | return 1; | |
420 | } | |
421 | ||
422 | ||
b7bf3f81 | 423 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
424 | an expression involving its corresponding pointer. There are | |
425 | 2 cases; one for variable size arrays, and one for everything else, | |
426 | because variable-sized arrays require one fewer level of | |
427 | indirection. */ | |
428 | ||
429 | static void | |
430 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
431 | { | |
432 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
433 | tree value; | |
434 | ||
435 | /* Parameters need to be dereferenced. */ | |
436 | if (sym->cp_pointer->attr.dummy) | |
389dd41b | 437 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
438 | ptr_decl); | |
b7bf3f81 | 439 | |
440 | /* Check to see if we're dealing with a variable-sized array. */ | |
441 | if (sym->attr.dimension | |
442 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) | |
443 | { | |
942043f8 | 444 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 445 | them here. */ |
446 | value = convert (TREE_TYPE (decl), ptr_decl); | |
447 | } | |
448 | else | |
449 | { | |
450 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
451 | ptr_decl); | |
389dd41b | 452 | value = build_fold_indirect_ref_loc (input_location, |
453 | ptr_decl); | |
b7bf3f81 | 454 | } |
455 | ||
456 | SET_DECL_VALUE_EXPR (decl, value); | |
457 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 458 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 459 | } |
460 | ||
461 | ||
b9c7fce7 | 462 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 463 | |
464 | static void | |
b9c7fce7 | 465 | gfc_finish_decl (tree decl) |
4ee9c684 | 466 | { |
b9c7fce7 | 467 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
468 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 469 | |
b9c7fce7 | 470 | if (TREE_CODE (decl) != VAR_DECL) |
471 | return; | |
4ee9c684 | 472 | |
b9c7fce7 | 473 | if (DECL_SIZE (decl) == NULL_TREE |
474 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
475 | layout_decl (decl, 0); | |
476 | ||
477 | /* A few consistency checks. */ | |
478 | /* A static variable with an incomplete type is an error if it is | |
479 | initialized. Also if it is not file scope. Otherwise, let it | |
480 | through, but if it is not `extern' then it may cause an error | |
481 | message later. */ | |
482 | /* An automatic variable with an incomplete type is an error. */ | |
483 | ||
484 | /* We should know the storage size. */ | |
485 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
486 | || (TREE_STATIC (decl) | |
487 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) | |
488 | : DECL_EXTERNAL (decl))); | |
489 | ||
490 | /* The storage size should be constant. */ | |
491 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
492 | || !DECL_SIZE (decl) | |
493 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 494 | } |
495 | ||
496 | ||
497 | /* Apply symbol attributes to a variable, and add it to the function scope. */ | |
498 | ||
499 | static void | |
500 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
501 | { | |
c1977dbe | 502 | tree new_type; |
f888a3fb | 503 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
4ee9c684 | 504 | This is the equivalent of the TARGET variables. |
505 | We also need to set this if the variable is passed by reference in a | |
506 | CALL statement. */ | |
b549d2a5 | 507 | |
b7bf3f81 | 508 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 509 | if (sym->attr.cray_pointee) |
b7bf3f81 | 510 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 511 | |
4ee9c684 | 512 | if (sym->attr.target) |
513 | TREE_ADDRESSABLE (decl) = 1; | |
514 | /* If it wasn't used we wouldn't be getting it. */ | |
515 | TREE_USED (decl) = 1; | |
516 | ||
7415cfe4 | 517 | if (sym->attr.flavor == FL_PARAMETER |
518 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
519 | TREE_READONLY (decl) = 1; | |
520 | ||
4ee9c684 | 521 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
522 | because this would add them to the current scope rather than the | |
523 | function scope. */ | |
524 | if (current_function_decl != NULL_TREE) | |
525 | { | |
7af6a4af | 526 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 527 | || sym->result == sym) |
4ee9c684 | 528 | gfc_add_decl_to_function (decl); |
6a7084d7 | 529 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
530 | /* This is a BLOCK construct. */ | |
531 | add_decl_as_local (decl); | |
4ee9c684 | 532 | else |
533 | gfc_add_decl_to_parent_function (decl); | |
534 | } | |
535 | ||
b7bf3f81 | 536 | if (sym->attr.cray_pointee) |
537 | return; | |
538 | ||
c5cb468c | 539 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 540 | { |
541 | /* We need to put variables that are bind(c) into the common | |
542 | segment of the object file, because this is what C would do. | |
543 | gfortran would typically put them in either the BSS or | |
544 | initialized data segments, and only mark them as common if | |
545 | they were part of common blocks. However, if they are not put | |
ea657963 | 546 | into common space, then C cannot initialize global Fortran |
c5d33754 | 547 | variables that it interoperates with and the draft says that |
548 | either Fortran or C should be able to initialize it (but not | |
549 | both, of course.) (J3/04-007, section 15.3). */ | |
550 | TREE_PUBLIC(decl) = 1; | |
551 | DECL_COMMON(decl) = 1; | |
552 | } | |
553 | ||
4ee9c684 | 554 | /* If a variable is USE associated, it's always external. */ |
555 | if (sym->attr.use_assoc) | |
556 | { | |
557 | DECL_EXTERNAL (decl) = 1; | |
558 | TREE_PUBLIC (decl) = 1; | |
559 | } | |
4f0fae8e | 560 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 561 | { |
6b20224d | 562 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 563 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
4ee9c684 | 564 | /* This is the declaration of a module variable. */ |
7d6b5754 | 565 | if (sym->attr.access == ACCESS_UNKNOWN |
566 | && (sym->ns->default_access == ACCESS_PRIVATE | |
567 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
568 | && gfc_option.flag_module_private))) | |
569 | sym->attr.access = ACCESS_PRIVATE; | |
570 | ||
87d9f569 | 571 | if (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used) |
c5cb468c | 572 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 573 | TREE_STATIC (decl) = 1; |
574 | } | |
575 | ||
f0d4969f | 576 | /* Derived types are a bit peculiar because of the possibility of |
577 | a default initializer; this must be applied each time the variable | |
578 | comes into scope it therefore need not be static. These variables | |
579 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 580 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 581 | SAVE_EXPLICIT. */ |
582 | if (!sym->attr.use_assoc | |
583 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 584 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
585 | || (gfc_option.coarray == GFC_FCOARRAY_LIB | |
586 | && sym->attr.codimension && !sym->attr.allocatable))) | |
4ee9c684 | 587 | TREE_STATIC (decl) = 1; |
ef814c81 | 588 | |
589 | if (sym->attr.volatile_) | |
590 | { | |
ef814c81 | 591 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 592 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 593 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
594 | TREE_TYPE (decl) = new_type; | |
ef814c81 | 595 | } |
596 | ||
4ee9c684 | 597 | /* Keep variables larger than max-stack-var-size off stack. */ |
598 | if (!sym->ns->proc_name->attr.recursive | |
599 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 600 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
601 | /* Put variable length auto array pointers always into stack. */ | |
602 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
603 | || sym->attr.dimension == 0 | |
604 | || sym->as->type != AS_EXPLICIT | |
605 | || sym->attr.pointer | |
606 | || sym->attr.allocatable) | |
607 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 608 | TREE_STATIC (decl) = 1; |
764f1175 | 609 | |
610 | /* Handle threadprivate variables. */ | |
9dda1f80 | 611 | if (sym->attr.threadprivate |
764f1175 | 612 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
613 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
e1b3b79b | 614 | |
615 | if (!sym->attr.target | |
616 | && !sym->attr.pointer | |
452695a8 | 617 | && !sym->attr.cray_pointee |
8bb76364 | 618 | && !sym->attr.proc_pointer) |
619 | DECL_RESTRICTED_P (decl) = 1; | |
4ee9c684 | 620 | } |
621 | ||
622 | ||
623 | /* Allocate the lang-specific part of a decl. */ | |
624 | ||
625 | void | |
626 | gfc_allocate_lang_decl (tree decl) | |
627 | { | |
ba72912a | 628 | DECL_LANG_SPECIFIC (decl) = ggc_alloc_cleared_lang_decl(sizeof |
629 | (struct lang_decl)); | |
4ee9c684 | 630 | } |
631 | ||
632 | /* Remember a symbol to generate initialization/cleanup code at function | |
633 | entry/exit. */ | |
634 | ||
635 | static void | |
636 | gfc_defer_symbol_init (gfc_symbol * sym) | |
637 | { | |
638 | gfc_symbol *p; | |
639 | gfc_symbol *last; | |
640 | gfc_symbol *head; | |
641 | ||
642 | /* Don't add a symbol twice. */ | |
643 | if (sym->tlink) | |
644 | return; | |
645 | ||
646 | last = head = sym->ns->proc_name; | |
647 | p = last->tlink; | |
648 | ||
649 | /* Make sure that setup code for dummy variables which are used in the | |
650 | setup of other variables is generated first. */ | |
651 | if (sym->attr.dummy) | |
652 | { | |
653 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
654 | This is a circular list, so don't go past the head. */ | |
655 | while (p != head | |
656 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
657 | { | |
658 | last = p; | |
659 | p = p->tlink; | |
660 | } | |
661 | } | |
662 | /* Insert in between last and p. */ | |
663 | last->tlink = sym; | |
664 | sym->tlink = p; | |
665 | } | |
666 | ||
667 | ||
9f5a9ac5 | 668 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
669 | backend_decl for a module symbol, if it all ready exists. If the | |
670 | module gsymbol does not exist, it is created. If the symbol does | |
671 | not exist, it is added to the gsymbol namespace. Returns true if | |
672 | an existing backend_decl is found. */ | |
673 | ||
674 | bool | |
675 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
676 | { | |
677 | gfc_gsymbol *gsym; | |
678 | gfc_symbol *s; | |
679 | gfc_symtree *st; | |
680 | ||
681 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
682 | ||
683 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
684 | { | |
685 | st = NULL; | |
686 | s = NULL; | |
687 | ||
688 | if (gsym) | |
689 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
690 | ||
691 | if (!s) | |
692 | { | |
693 | if (!gsym) | |
694 | { | |
695 | gsym = gfc_get_gsymbol (sym->module); | |
696 | gsym->type = GSYM_MODULE; | |
697 | gsym->ns = gfc_get_namespace (NULL, 0); | |
698 | } | |
699 | ||
700 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
701 | st->n.sym = sym; | |
702 | sym->refs++; | |
703 | } | |
704 | else if (sym->attr.flavor == FL_DERIVED) | |
705 | { | |
c2958b6b | 706 | if (s && s->attr.flavor == FL_PROCEDURE) |
707 | { | |
708 | gfc_interface *intr; | |
709 | gcc_assert (s->attr.generic); | |
710 | for (intr = s->generic; intr; intr = intr->next) | |
711 | if (intr->sym->attr.flavor == FL_DERIVED) | |
712 | { | |
713 | s = intr->sym; | |
714 | break; | |
715 | } | |
716 | } | |
717 | ||
9f5a9ac5 | 718 | if (!s->backend_decl) |
719 | s->backend_decl = gfc_get_derived_type (s); | |
720 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
721 | return true; | |
722 | } | |
723 | else if (s->backend_decl) | |
724 | { | |
85ec2f13 | 725 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 726 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
727 | true); | |
728 | else if (sym->ts.type == BT_CHARACTER) | |
729 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
730 | sym->backend_decl = s->backend_decl; | |
731 | return true; | |
732 | } | |
733 | } | |
734 | return false; | |
735 | } | |
736 | ||
737 | ||
4ee9c684 | 738 | /* Create an array index type variable with function scope. */ |
739 | ||
740 | static tree | |
741 | create_index_var (const char * pfx, int nest) | |
742 | { | |
743 | tree decl; | |
744 | ||
745 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
746 | if (nest) | |
747 | gfc_add_decl_to_parent_function (decl); | |
748 | else | |
749 | gfc_add_decl_to_function (decl); | |
750 | return decl; | |
751 | } | |
752 | ||
753 | ||
754 | /* Create variables to hold all the non-constant bits of info for a | |
755 | descriptorless array. Remember these in the lang-specific part of the | |
756 | type. */ | |
757 | ||
758 | static void | |
759 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
760 | { | |
761 | tree type; | |
762 | int dim; | |
763 | int nest; | |
7b82374f | 764 | gfc_namespace* procns; |
4ee9c684 | 765 | |
766 | type = TREE_TYPE (decl); | |
767 | ||
768 | /* We just use the descriptor, if there is one. */ | |
769 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
770 | return; | |
771 | ||
22d678e8 | 772 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 773 | procns = gfc_find_proc_namespace (sym->ns); |
774 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 775 | && !sym->attr.contained; |
776 | ||
a961ca30 | 777 | if (sym->attr.codimension && gfc_option.coarray == GFC_FCOARRAY_LIB |
7dce33fe | 778 | && sym->as->type != AS_ASSUMED_SHAPE |
a961ca30 | 779 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
780 | { | |
781 | tree token; | |
782 | ||
d881175c | 783 | token = gfc_create_var_np (build_qualified_type (pvoid_type_node, |
784 | TYPE_QUAL_RESTRICT), | |
785 | "caf_token"); | |
a961ca30 | 786 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
787 | DECL_ARTIFICIAL (token) = 1; | |
788 | TREE_STATIC (token) = 1; | |
789 | gfc_add_decl_to_function (token); | |
790 | } | |
791 | ||
4ee9c684 | 792 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
793 | { | |
794 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 795 | { |
796 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
797 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
798 | } | |
9ca15c9b | 799 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 800 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
801 | && (sym->as->type != AS_ASSUMED_SIZE | |
802 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 803 | { |
804 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
805 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
806 | } | |
4ee9c684 | 807 | |
808 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 809 | { |
810 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
811 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
812 | } | |
4ee9c684 | 813 | } |
076094b7 | 814 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
815 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
816 | { | |
817 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
818 | { | |
819 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
820 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
821 | } | |
822 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
823 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
824 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
825 | { | |
826 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
827 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
828 | } | |
829 | } | |
4ee9c684 | 830 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
831 | { | |
832 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
833 | "offset"); | |
86254bbf | 834 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
835 | ||
4ee9c684 | 836 | if (nest) |
837 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
838 | else | |
839 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
840 | } | |
d4163395 | 841 | |
842 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
843 | && sym->as->type != AS_ASSUMED_SIZE) | |
86254bbf | 844 | { |
845 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
846 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
847 | } | |
d4163395 | 848 | |
849 | if (POINTER_TYPE_P (type)) | |
850 | { | |
851 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
852 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
853 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
854 | type = TREE_TYPE (type); | |
855 | } | |
856 | ||
857 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
858 | { | |
859 | tree size, range; | |
860 | ||
fd779e1d | 861 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
862 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 863 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
864 | size); | |
865 | TYPE_DOMAIN (type) = range; | |
866 | layout_type (type); | |
867 | } | |
6cf159a6 | 868 | |
6cf159a6 | 869 | if (TYPE_NAME (type) != NULL_TREE |
870 | && GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1) != NULL_TREE | |
871 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1)) == VAR_DECL) | |
872 | { | |
873 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
874 | ||
875 | for (dim = 0; dim < sym->as->rank - 1; dim++) | |
876 | { | |
877 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
878 | gtype = TREE_TYPE (gtype); | |
879 | } | |
880 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
881 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
882 | TYPE_NAME (type) = NULL_TREE; | |
883 | } | |
884 | ||
885 | if (TYPE_NAME (type) == NULL_TREE) | |
886 | { | |
887 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
888 | ||
889 | for (dim = sym->as->rank - 1; dim >= 0; dim--) | |
890 | { | |
7130ec9d | 891 | tree lbound, ubound; |
892 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
893 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
894 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 895 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 896 | /* Ensure the bound variables aren't optimized out at -O0. |
897 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 898 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
899 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
900 | end up in debug info. */ | |
7130ec9d | 901 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
902 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
903 | { | |
904 | if (DECL_NAME (lbound) | |
905 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
906 | "lbound") != 0) | |
84bfaaeb | 907 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 908 | DECL_IGNORED_P (lbound) = 0; |
909 | } | |
910 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
911 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
912 | { | |
913 | if (DECL_NAME (ubound) | |
914 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
915 | "ubound") != 0) | |
84bfaaeb | 916 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 917 | DECL_IGNORED_P (ubound) = 0; |
918 | } | |
6cf159a6 | 919 | } |
e60a6f7b | 920 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
921 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 922 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
923 | } | |
4ee9c684 | 924 | } |
925 | ||
926 | ||
927 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 928 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 929 | initialization, and construct full type information. */ |
930 | ||
931 | static tree | |
932 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
933 | { | |
934 | tree decl; | |
935 | tree type; | |
936 | gfc_array_spec *as; | |
937 | char *name; | |
3d8dea5a | 938 | gfc_packed packed; |
4ee9c684 | 939 | int n; |
940 | bool known_size; | |
941 | ||
f00f6dd6 | 942 | if (sym->attr.pointer || sym->attr.allocatable |
943 | || (sym->as && sym->as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 944 | return dummy; |
945 | ||
946 | /* Add to list of variables if not a fake result variable. */ | |
947 | if (sym->attr.result || sym->attr.dummy) | |
948 | gfc_defer_symbol_init (sym); | |
949 | ||
950 | type = TREE_TYPE (dummy); | |
22d678e8 | 951 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
4ee9c684 | 952 | && POINTER_TYPE_P (type)); |
953 | ||
f888a3fb | 954 | /* Do we know the element size? */ |
4ee9c684 | 955 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 956 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
4ee9c684 | 957 | |
958 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (type))) | |
959 | { | |
960 | /* For descriptorless arrays with known element size the actual | |
961 | argument is sufficient. */ | |
22d678e8 | 962 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
4ee9c684 | 963 | gfc_build_qualified_array (dummy, sym); |
964 | return dummy; | |
965 | } | |
966 | ||
967 | type = TREE_TYPE (type); | |
968 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
969 | { | |
cb8e3560 | 970 | /* Create a descriptorless array pointer. */ |
4ee9c684 | 971 | as = sym->as; |
3d8dea5a | 972 | packed = PACKED_NO; |
3d235846 | 973 | |
974 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
975 | are not repacked. */ | |
976 | if (!gfc_option.flag_repack_arrays || sym->attr.target) | |
4ee9c684 | 977 | { |
978 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 979 | packed = PACKED_FULL; |
4ee9c684 | 980 | } |
981 | else | |
982 | { | |
983 | if (as->type == AS_EXPLICIT) | |
984 | { | |
3d8dea5a | 985 | packed = PACKED_FULL; |
4ee9c684 | 986 | for (n = 0; n < as->rank; n++) |
987 | { | |
988 | if (!(as->upper[n] | |
989 | && as->lower[n] | |
990 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
991 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
3d8dea5a | 992 | packed = PACKED_PARTIAL; |
4ee9c684 | 993 | } |
994 | } | |
995 | else | |
3d8dea5a | 996 | packed = PACKED_PARTIAL; |
4ee9c684 | 997 | } |
998 | ||
999 | type = gfc_typenode_for_spec (&sym->ts); | |
e1b3b79b | 1000 | type = gfc_get_nodesc_array_type (type, sym->as, packed, |
1001 | !sym->attr.target); | |
4ee9c684 | 1002 | } |
1003 | else | |
1004 | { | |
1005 | /* We now have an expression for the element size, so create a fully | |
1006 | qualified type. Reset sym->backend decl or this will just return the | |
1007 | old type. */ | |
d95efb59 | 1008 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1009 | sym->backend_decl = NULL_TREE; |
1010 | type = gfc_sym_type (sym); | |
3d8dea5a | 1011 | packed = PACKED_FULL; |
4ee9c684 | 1012 | } |
1013 | ||
1014 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1015 | decl = build_decl (input_location, |
1016 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1017 | |
1018 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1019 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1020 | TREE_PUBLIC (decl) = 0; |
1021 | TREE_STATIC (decl) = 0; | |
1022 | DECL_EXTERNAL (decl) = 0; | |
1023 | ||
1024 | /* We should never get deferred shape arrays here. We used to because of | |
1025 | frontend bugs. */ | |
22d678e8 | 1026 | gcc_assert (sym->as->type != AS_DEFERRED); |
4ee9c684 | 1027 | |
3d8dea5a | 1028 | if (packed == PACKED_PARTIAL) |
1029 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1030 | else if (packed == PACKED_FULL) | |
1031 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1032 | |
1033 | gfc_build_qualified_array (decl, sym); | |
1034 | ||
1035 | if (DECL_LANG_SPECIFIC (dummy)) | |
1036 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1037 | else | |
1038 | gfc_allocate_lang_decl (decl); | |
1039 | ||
1040 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1041 | ||
1042 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1043 | || sym->attr.contained) | |
1044 | gfc_add_decl_to_function (decl); | |
1045 | else | |
1046 | gfc_add_decl_to_parent_function (decl); | |
1047 | ||
1048 | return decl; | |
1049 | } | |
1050 | ||
9579733e | 1051 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1052 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1053 | pointing to the artificial variable for debug info purposes. */ | |
1054 | ||
1055 | static void | |
1056 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1057 | { | |
1058 | tree decl, dummy; | |
1059 | ||
1060 | if (! nonlocal_dummy_decl_pset) | |
1061 | nonlocal_dummy_decl_pset = pointer_set_create (); | |
1062 | ||
1063 | if (pointer_set_insert (nonlocal_dummy_decl_pset, sym->backend_decl)) | |
1064 | return; | |
1065 | ||
1066 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1067 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1068 | TREE_TYPE (sym->backend_decl)); |
1069 | DECL_ARTIFICIAL (decl) = 0; | |
1070 | TREE_USED (decl) = 1; | |
1071 | TREE_PUBLIC (decl) = 0; | |
1072 | TREE_STATIC (decl) = 0; | |
1073 | DECL_EXTERNAL (decl) = 0; | |
1074 | if (DECL_BY_REFERENCE (dummy)) | |
1075 | DECL_BY_REFERENCE (decl) = 1; | |
1076 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1077 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1078 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1079 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1080 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1081 | nonlocal_dummy_decls = decl; |
1082 | } | |
4ee9c684 | 1083 | |
1084 | /* Return a constant or a variable to use as a string length. Does not | |
1085 | add the decl to the current scope. */ | |
1086 | ||
1087 | static tree | |
1088 | gfc_create_string_length (gfc_symbol * sym) | |
1089 | { | |
eeebe20b | 1090 | gcc_assert (sym->ts.u.cl); |
1091 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1092 | |
eeebe20b | 1093 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1094 | { |
a4abf8a0 | 1095 | tree length; |
774bbd60 | 1096 | const char *name; |
4ee9c684 | 1097 | |
1098 | /* Also prefix the mangled name. */ | |
774bbd60 | 1099 | if (sym->module) |
1100 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); | |
1101 | else | |
1102 | name = gfc_get_string (".%s", sym->name); | |
1103 | ||
e60a6f7b | 1104 | length = build_decl (input_location, |
1105 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1106 | gfc_charlen_type_node); |
4ee9c684 | 1107 | DECL_ARTIFICIAL (length) = 1; |
1108 | TREE_USED (length) = 1; | |
d4163395 | 1109 | if (sym->ns->proc_name->tlink != NULL) |
1110 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1111 | |
eeebe20b | 1112 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1113 | |
1114 | if (sym->attr.save || sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1115 | TREE_STATIC (length) = 1; | |
1116 | ||
1117 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1118 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1119 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1120 | } |
1121 | ||
eeebe20b | 1122 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1123 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1124 | } |
1125 | ||
c8f1568f | 1126 | /* If a variable is assigned a label, we add another two auxiliary |
1127 | variables. */ | |
1128 | ||
1129 | static void | |
1130 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1131 | { | |
1132 | tree addr; | |
1133 | tree length; | |
1134 | tree decl; | |
1135 | ||
1136 | gcc_assert (sym->backend_decl); | |
1137 | ||
1138 | decl = sym->backend_decl; | |
1139 | gfc_allocate_lang_decl (decl); | |
1140 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1141 | length = build_decl (input_location, |
1142 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1143 | gfc_charlen_type_node); |
e60a6f7b | 1144 | addr = build_decl (input_location, |
1145 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1146 | pvoid_type_node); |
1147 | gfc_finish_var_decl (length, sym); | |
1148 | gfc_finish_var_decl (addr, sym); | |
1149 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1150 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1151 | target label's address. Otherwise, value is the length of a format string | |
1152 | and ASSIGN_ADDR is its address. */ | |
1153 | if (TREE_STATIC (length)) | |
35bf1214 | 1154 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1155 | else |
1156 | gfc_defer_symbol_init (sym); | |
1157 | ||
1158 | GFC_DECL_STRING_LEN (decl) = length; | |
1159 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1160 | } | |
4ee9c684 | 1161 | |
36b0a1b0 | 1162 | |
1163 | static tree | |
1164 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1165 | { | |
1166 | unsigned id; | |
1167 | tree attr; | |
1168 | ||
1169 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1170 | if (sym_attr.ext_attr & (1 << id)) | |
1171 | { | |
1172 | attr = build_tree_list ( | |
1173 | get_identifier (ext_attr_list[id].middle_end_name), | |
1174 | NULL_TREE); | |
1175 | list = chainon (list, attr); | |
1176 | } | |
1177 | ||
1178 | return list; | |
1179 | } | |
1180 | ||
1181 | ||
802532b9 | 1182 | static void build_function_decl (gfc_symbol * sym, bool global); |
1183 | ||
1184 | ||
4ee9c684 | 1185 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1186 | exist. */ | |
1187 | ||
1188 | tree | |
1189 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1190 | { | |
1191 | tree decl; | |
1192 | tree length = NULL_TREE; | |
36b0a1b0 | 1193 | tree attributes; |
4ee9c684 | 1194 | int byref; |
cd2c99b8 | 1195 | bool intrinsic_array_parameter = false; |
4ee9c684 | 1196 | |
0b5dc8b5 | 1197 | gcc_assert (sym->attr.referenced |
d0f6ad22 | 1198 | || sym->attr.use_assoc |
40c74b02 | 1199 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1200 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1201 | && sym->backend_decl)); | |
4ee9c684 | 1202 | |
ff70e443 | 1203 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1204 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1205 | else | |
1206 | byref = 0; | |
1207 | ||
09c509ed | 1208 | /* Make sure that the vtab for the declared type is completed. */ |
1209 | if (sym->ts.type == BT_CLASS) | |
1210 | { | |
50b4b37b | 1211 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1212 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1213 | { |
1214 | gfc_find_derived_vtab (c->ts.u.derived); | |
1215 | gfc_get_derived_type (sym->ts.u.derived); | |
1216 | } | |
09c509ed | 1217 | } |
1218 | ||
617125a6 | 1219 | /* All deferred character length procedures need to retain the backend |
1220 | decl, which is a pointer to the character length in the caller's | |
1221 | namespace and to declare a local character length. */ | |
1222 | if (!byref && sym->attr.function | |
1223 | && sym->ts.type == BT_CHARACTER | |
1224 | && sym->ts.deferred | |
1225 | && sym->ts.u.cl->passed_length == NULL | |
1226 | && sym->ts.u.cl->backend_decl | |
1227 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1228 | { | |
1229 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1230 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1231 | length = gfc_create_string_length (sym); | |
1232 | } | |
1233 | ||
4ee9c684 | 1234 | if ((sym->attr.dummy && ! sym->attr.function) || (sym->attr.result && byref)) |
1235 | { | |
1236 | /* Return via extra parameter. */ | |
1237 | if (sym->attr.result && byref | |
1238 | && !sym->backend_decl) | |
1239 | { | |
1240 | sym->backend_decl = | |
1241 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1242 | /* For entry master function skip over the __entry |
1243 | argument. */ | |
1244 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1245 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1246 | } |
1247 | ||
1248 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1249 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1250 | |
1251 | /* Create a character length variable. */ | |
1252 | if (sym->ts.type == BT_CHARACTER) | |
1253 | { | |
617125a6 | 1254 | /* For a deferred dummy, make a new string length variable. */ |
1255 | if (sym->ts.deferred | |
1256 | && | |
1257 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1258 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1259 | ||
1260 | if (sym->ts.deferred && sym->attr.result | |
1261 | && sym->ts.u.cl->passed_length == NULL | |
1262 | && sym->ts.u.cl->backend_decl) | |
1263 | { | |
1264 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1265 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1266 | } | |
1267 | ||
eeebe20b | 1268 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1269 | length = gfc_create_string_length (sym); |
1270 | else | |
eeebe20b | 1271 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1272 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1273 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1274 | { |
d95efb59 | 1275 | /* Add the string length to the same context as the symbol. */ |
1276 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1277 | gfc_add_decl_to_function (length); | |
1278 | else | |
1279 | gfc_add_decl_to_parent_function (length); | |
1280 | ||
1281 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1282 | DECL_CONTEXT (length)); | |
1283 | ||
d4163395 | 1284 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1285 | } |
4ee9c684 | 1286 | } |
1287 | ||
1288 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1289 | if ((sym->attr.dimension || sym->attr.codimension) |
1290 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1291 | { |
d95efb59 | 1292 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1293 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1294 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1295 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1296 | sym->backend_decl = decl; | |
4ee9c684 | 1297 | } |
1298 | ||
1299 | TREE_USED (sym->backend_decl) = 1; | |
c8f1568f | 1300 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1301 | { | |
1302 | gfc_add_assign_aux_vars (sym); | |
1303 | } | |
9579733e | 1304 | |
1305 | if (sym->attr.dimension | |
1306 | && DECL_LANG_SPECIFIC (sym->backend_decl) | |
1307 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1308 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1309 | gfc_nonlocal_dummy_array_decl (sym); | |
1310 | ||
fd23cc08 | 1311 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1312 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1313 | ||
1314 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1315 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1316 | return sym->backend_decl; | |
4ee9c684 | 1317 | } |
1318 | ||
1319 | if (sym->backend_decl) | |
1320 | return sym->backend_decl; | |
1321 | ||
a25debd0 | 1322 | /* Special case for array-valued named constants from intrinsic |
1323 | procedures; those are inlined. */ | |
1324 | if (sym->attr.use_assoc && sym->from_intmod | |
1325 | && sym->attr.flavor == FL_PARAMETER) | |
1326 | intrinsic_array_parameter = true; | |
1327 | ||
7ea64434 | 1328 | /* If use associated and whole file compilation, use the module |
094bca96 | 1329 | declaration. */ |
7ea64434 | 1330 | if (gfc_option.flag_whole_file |
a25debd0 | 1331 | && (sym->attr.flavor == FL_VARIABLE |
1332 | || sym->attr.flavor == FL_PARAMETER) | |
9f5a9ac5 | 1333 | && sym->attr.use_assoc |
1334 | && !intrinsic_array_parameter | |
1335 | && sym->module | |
1336 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1337 | { |
1338 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1339 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1340 | return sym->backend_decl; | |
1341 | } | |
7ea64434 | 1342 | |
4ee9c684 | 1343 | if (sym->attr.flavor == FL_PROCEDURE) |
1344 | { | |
802532b9 | 1345 | /* Catch function declarations. Only used for actual parameters, |
1346 | procedure pointers and procptr initialization targets. */ | |
1347 | if (sym->attr.external || sym->attr.use_assoc || sym->attr.intrinsic) | |
1348 | { | |
1349 | decl = gfc_get_extern_function_decl (sym); | |
1350 | gfc_set_decl_location (decl, &sym->declared_at); | |
1351 | } | |
1352 | else | |
1353 | { | |
1354 | if (!sym->backend_decl) | |
1355 | build_function_decl (sym, false); | |
1356 | decl = sym->backend_decl; | |
1357 | } | |
4ee9c684 | 1358 | return decl; |
1359 | } | |
1360 | ||
1361 | if (sym->attr.intrinsic) | |
1362 | internal_error ("intrinsic variable which isn't a procedure"); | |
1363 | ||
1364 | /* Create string length decl first so that they can be used in the | |
1365 | type declaration. */ | |
1366 | if (sym->ts.type == BT_CHARACTER) | |
1367 | length = gfc_create_string_length (sym); | |
1368 | ||
1369 | /* Create the decl for the variable. */ | |
e60a6f7b | 1370 | decl = build_decl (sym->declared_at.lb->location, |
1371 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1372 | |
1236e28b | 1373 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1374 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1375 | decl_attributes (&decl, attributes, 0); | |
1376 | ||
f888a3fb | 1377 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1378 | This is done here rather than in gfc_finish_var_decl because it |
1379 | is different for string length variables. */ | |
4f0fae8e | 1380 | if (sym->module) |
df4d540f | 1381 | { |
1236e28b | 1382 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1383 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1384 | DECL_IGNORED_P (decl) = 1; |
1385 | } | |
4ee9c684 | 1386 | |
7a777e43 | 1387 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1388 | { |
1389 | /* Create variables to hold the non-constant bits of array info. */ | |
1390 | gfc_build_qualified_array (decl, sym); | |
1391 | ||
b3c3927c | 1392 | if (sym->attr.contiguous |
1393 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1394 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1395 | } | |
1396 | ||
0a96a7cc | 1397 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1398 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1399 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1400 | (CLASS_DATA (sym)->attr.dimension |
1401 | || CLASS_DATA (sym)->attr.allocatable)) | |
0a96a7cc | 1402 | || (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
1403 | /* This applies a derived type default initializer. */ | |
1404 | || (sym->ts.type == BT_DERIVED | |
1405 | && sym->attr.save == SAVE_NONE | |
1406 | && !sym->attr.data | |
1407 | && !sym->attr.allocatable | |
1408 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1409 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1410 | gfc_defer_symbol_init (sym); |
2294b616 | 1411 | |
4ee9c684 | 1412 | gfc_finish_var_decl (decl, sym); |
1413 | ||
bda1f152 | 1414 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1415 | { |
4ee9c684 | 1416 | /* Character variables need special handling. */ |
1417 | gfc_allocate_lang_decl (decl); | |
1418 | ||
bda1f152 | 1419 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1420 | { |
4ee9c684 | 1421 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1422 | gcc_assert (!sym->value); |
4ee9c684 | 1423 | } |
4ee9c684 | 1424 | } |
1033248c | 1425 | else if (sym->attr.subref_array_pointer) |
1426 | { | |
1427 | /* We need the span for these beasts. */ | |
1428 | gfc_allocate_lang_decl (decl); | |
1429 | } | |
1430 | ||
1431 | if (sym->attr.subref_array_pointer) | |
1432 | { | |
1433 | tree span; | |
1434 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1435 | span = build_decl (input_location, |
1436 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1437 | gfc_array_index_type); |
1438 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1439 | TREE_STATIC (span) = TREE_STATIC (decl); |
1440 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1441 | |
1442 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1443 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1444 | } |
1445 | ||
fd23cc08 | 1446 | if (sym->ts.type == BT_CLASS) |
1447 | GFC_DECL_CLASS(decl) = 1; | |
1448 | ||
4ee9c684 | 1449 | sym->backend_decl = decl; |
1450 | ||
c8f1568f | 1451 | if (sym->attr.assign) |
21ebda4d | 1452 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1453 | |
cd2c99b8 | 1454 | if (intrinsic_array_parameter) |
1455 | { | |
1456 | TREE_STATIC (decl) = 1; | |
1457 | DECL_EXTERNAL (decl) = 0; | |
1458 | } | |
1459 | ||
1460 | if (TREE_STATIC (decl) | |
1461 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1462 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
1463 | || gfc_option.flag_max_stack_var_size == 0 | |
a961ca30 | 1464 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
0d3bb1de | 1465 | && (gfc_option.coarray != GFC_FCOARRAY_LIB |
1466 | || !sym->attr.codimension || sym->attr.allocatable)) | |
a545a8f8 | 1467 | { |
1468 | /* Add static initializer. For procedures, it is only needed if | |
1469 | SAVE is specified otherwise they need to be reinitialized | |
1470 | every time the procedure is entered. The TREE_STATIC is | |
1471 | in this case due to -fmax-stack-var-size=. */ | |
bda1f152 | 1472 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
802532b9 | 1473 | TREE_TYPE (decl), |
0d3bb1de | 1474 | sym->attr.dimension |
1475 | || (sym->attr.codimension | |
1476 | && sym->attr.allocatable), | |
802532b9 | 1477 | sym->attr.pointer |
1478 | || sym->attr.allocatable, | |
1479 | sym->attr.proc_pointer); | |
bda1f152 | 1480 | } |
1481 | ||
9579733e | 1482 | if (!TREE_STATIC (decl) |
1483 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1484 | && !sym->attr.pointer | |
1485 | && !sym->attr.allocatable | |
1486 | && !sym->attr.proc_pointer) | |
1487 | DECL_BY_REFERENCE (decl) = 1; | |
1488 | ||
ebad7c3e | 1489 | if (sym->attr.vtab |
1490 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1491 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1492 | |
4ee9c684 | 1493 | return decl; |
1494 | } | |
1495 | ||
1496 | ||
dbe60343 | 1497 | /* Substitute a temporary variable in place of the real one. */ |
1498 | ||
1499 | void | |
1500 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1501 | { | |
1502 | save->attr = sym->attr; | |
1503 | save->decl = sym->backend_decl; | |
1504 | ||
1505 | gfc_clear_attr (&sym->attr); | |
1506 | sym->attr.referenced = 1; | |
1507 | sym->attr.flavor = FL_VARIABLE; | |
1508 | ||
1509 | sym->backend_decl = decl; | |
1510 | } | |
1511 | ||
1512 | ||
1513 | /* Restore the original variable. */ | |
1514 | ||
1515 | void | |
1516 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1517 | { | |
1518 | sym->attr = save->attr; | |
1519 | sym->backend_decl = save->decl; | |
1520 | } | |
1521 | ||
1522 | ||
cad0ddcf | 1523 | /* Declare a procedure pointer. */ |
1524 | ||
1525 | static tree | |
1526 | get_proc_pointer_decl (gfc_symbol *sym) | |
1527 | { | |
1528 | tree decl; | |
36b0a1b0 | 1529 | tree attributes; |
cad0ddcf | 1530 | |
1531 | decl = sym->backend_decl; | |
1532 | if (decl) | |
1533 | return decl; | |
1534 | ||
e60a6f7b | 1535 | decl = build_decl (input_location, |
1536 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1537 | build_pointer_type (gfc_get_function_type (sym))); |
1538 | ||
e72f979a | 1539 | if ((sym->ns->proc_name |
1540 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1541 | || sym->attr.contained) |
1542 | gfc_add_decl_to_function (decl); | |
cf269acc | 1543 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1544 | gfc_add_decl_to_parent_function (decl); |
1545 | ||
1546 | sym->backend_decl = decl; | |
1547 | ||
cf269acc | 1548 | /* If a variable is USE associated, it's always external. */ |
1549 | if (sym->attr.use_assoc) | |
1550 | { | |
1551 | DECL_EXTERNAL (decl) = 1; | |
1552 | TREE_PUBLIC (decl) = 1; | |
1553 | } | |
1554 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1555 | { | |
1556 | /* This is the declaration of a module variable. */ | |
1557 | TREE_PUBLIC (decl) = 1; | |
1558 | TREE_STATIC (decl) = 1; | |
1559 | } | |
1560 | ||
cad0ddcf | 1561 | if (!sym->attr.use_assoc |
1562 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1563 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1564 | TREE_STATIC (decl) = 1; | |
1565 | ||
1566 | if (TREE_STATIC (decl) && sym->value) | |
1567 | { | |
1568 | /* Add static initializer. */ | |
1569 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1570 | TREE_TYPE (decl), |
1571 | sym->attr.dimension, | |
1572 | false, true); | |
cad0ddcf | 1573 | } |
1574 | ||
8fb1768c | 1575 | /* Handle threadprivate procedure pointers. */ |
1576 | if (sym->attr.threadprivate | |
1577 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
1578 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
1579 | ||
36b0a1b0 | 1580 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1581 | decl_attributes (&decl, attributes, 0); | |
1582 | ||
cad0ddcf | 1583 | return decl; |
1584 | } | |
1585 | ||
1586 | ||
4ee9c684 | 1587 | /* Get a basic decl for an external function. */ |
1588 | ||
1589 | tree | |
1590 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1591 | { | |
1592 | tree type; | |
1593 | tree fndecl; | |
36b0a1b0 | 1594 | tree attributes; |
4ee9c684 | 1595 | gfc_expr e; |
1596 | gfc_intrinsic_sym *isym; | |
1597 | gfc_expr argexpr; | |
17000b91 | 1598 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1599 | tree name; |
1600 | tree mangled_name; | |
83aeedb9 | 1601 | gfc_gsymbol *gsym; |
4ee9c684 | 1602 | |
1603 | if (sym->backend_decl) | |
1604 | return sym->backend_decl; | |
1605 | ||
1b716045 | 1606 | /* We should never be creating external decls for alternate entry points. |
1607 | The procedure may be an alternate entry point, but we don't want/need | |
1608 | to know that. */ | |
22d678e8 | 1609 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1610 | |
cad0ddcf | 1611 | if (sym->attr.proc_pointer) |
1612 | return get_proc_pointer_decl (sym); | |
1613 | ||
83aeedb9 | 1614 | /* See if this is an external procedure from the same file. If so, |
1615 | return the backend_decl. */ | |
1616 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name); | |
1617 | ||
1618 | if (gfc_option.flag_whole_file | |
40c74b02 | 1619 | && (!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
83aeedb9 | 1620 | && !sym->backend_decl |
1621 | && gsym && gsym->ns | |
1622 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
d896f9b3 | 1623 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) |
83aeedb9 | 1624 | { |
d896f9b3 | 1625 | if (!gsym->ns->proc_name->backend_decl) |
1626 | { | |
1627 | /* By construction, the external function cannot be | |
1628 | a contained procedure. */ | |
1629 | locus old_loc; | |
d896f9b3 | 1630 | |
4671339c | 1631 | gfc_save_backend_locus (&old_loc); |
9078126c | 1632 | push_cfun (NULL); |
d896f9b3 | 1633 | |
1634 | gfc_create_function_decl (gsym->ns, true); | |
1635 | ||
1636 | pop_cfun (); | |
4671339c | 1637 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1638 | } |
1639 | ||
83aeedb9 | 1640 | /* If the namespace has entries, the proc_name is the |
1641 | entry master. Find the entry and use its backend_decl. | |
1642 | otherwise, use the proc_name backend_decl. */ | |
1643 | if (gsym->ns->entries) | |
1644 | { | |
1645 | gfc_entry_list *entry = gsym->ns->entries; | |
1646 | ||
1647 | for (; entry; entry = entry->next) | |
1648 | { | |
1649 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1650 | { | |
1651 | sym->backend_decl = entry->sym->backend_decl; | |
1652 | break; | |
1653 | } | |
1654 | } | |
1655 | } | |
1656 | else | |
40c74b02 | 1657 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1658 | |
1659 | if (sym->backend_decl) | |
40c74b02 | 1660 | { |
1661 | /* Avoid problems of double deallocation of the backend declaration | |
1662 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1663 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1664 | sym->attr.use_assoc = 0; | |
1665 | ||
1666 | return sym->backend_decl; | |
1667 | } | |
83aeedb9 | 1668 | } |
1669 | ||
7ea64434 | 1670 | /* See if this is a module procedure from the same file. If so, |
1671 | return the backend_decl. */ | |
1672 | if (sym->module) | |
1673 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1674 | ||
1675 | if (gfc_option.flag_whole_file | |
1676 | && gsym && gsym->ns | |
1677 | && gsym->type == GSYM_MODULE) | |
1678 | { | |
1679 | gfc_symbol *s; | |
1680 | ||
1681 | s = NULL; | |
1682 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1683 | if (s && s->backend_decl) | |
1684 | { | |
85ec2f13 | 1685 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1686 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1687 | true); | |
1688 | else if (sym->ts.type == BT_CHARACTER) | |
1689 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1690 | sym->backend_decl = s->backend_decl; |
1691 | return sym->backend_decl; | |
1692 | } | |
1693 | } | |
1694 | ||
4ee9c684 | 1695 | if (sym->attr.intrinsic) |
1696 | { | |
1697 | /* Call the resolution function to get the actual name. This is | |
1698 | a nasty hack which relies on the resolution functions only looking | |
1699 | at the first argument. We pass NULL for the second argument | |
1700 | otherwise things like AINT get confused. */ | |
1701 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1702 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1703 | |
1704 | memset (&e, 0, sizeof (e)); | |
1705 | e.expr_type = EXPR_FUNCTION; | |
1706 | ||
1707 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1708 | gcc_assert (isym->formal); |
4ee9c684 | 1709 | argexpr.ts = isym->formal->ts; |
1710 | ||
1711 | if (isym->formal->next == NULL) | |
1712 | isym->resolve.f1 (&e, &argexpr); | |
1713 | else | |
1714 | { | |
37e0271a | 1715 | if (isym->formal->next->next == NULL) |
1716 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1717 | else | |
1718 | { | |
7fe55cc9 | 1719 | if (isym->formal->next->next->next == NULL) |
1720 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1721 | else | |
1722 | { | |
1723 | /* All specific intrinsics take less than 5 arguments. */ | |
1724 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1725 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1726 | } | |
37e0271a | 1727 | } |
4ee9c684 | 1728 | } |
bdaed7d2 | 1729 | |
1730 | if (gfc_option.flag_f2c | |
1731 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) | |
1732 | || e.ts.type == BT_COMPLEX)) | |
1733 | { | |
1734 | /* Specific which needs a different implementation if f2c | |
1735 | calling conventions are used. */ | |
17000b91 | 1736 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1737 | } |
1738 | else | |
17000b91 | 1739 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1740 | |
4ee9c684 | 1741 | name = get_identifier (s); |
1742 | mangled_name = name; | |
1743 | } | |
1744 | else | |
1745 | { | |
1746 | name = gfc_sym_identifier (sym); | |
1747 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1748 | } | |
1749 | ||
1750 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1751 | fndecl = build_decl (input_location, |
1752 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1753 | |
e27454ee | 1754 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1755 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1756 | the opposite of declaring a function as static in C). */ |
e27454ee | 1757 | DECL_EXTERNAL (fndecl) = 1; |
1758 | TREE_PUBLIC (fndecl) = 1; | |
1759 | ||
1236e28b | 1760 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1761 | decl_attributes (&fndecl, attributes, 0); | |
1762 | ||
1763 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 1764 | |
1765 | /* Set the context of this decl. */ | |
1766 | if (0 && sym->ns && sym->ns->proc_name) | |
1767 | { | |
1768 | /* TODO: Add external decls to the appropriate scope. */ | |
1769 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
1770 | } | |
1771 | else | |
1772 | { | |
f888a3fb | 1773 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 1774 | DECL_CONTEXT (fndecl) = NULL_TREE; |
1775 | } | |
1776 | ||
4ee9c684 | 1777 | /* Set attributes for PURE functions. A call to PURE function in the |
1778 | Fortran 95 sense is both pure and without side effects in the C | |
1779 | sense. */ | |
bead0399 | 1780 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 1781 | { |
4d4b9f0e | 1782 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1783 | DECL_PURE_P (fndecl) = 1; |
be393645 | 1784 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
1785 | parameters and don't use alternate returns (is this | |
1786 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 1787 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 1788 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 1789 | } |
1790 | ||
6e27d773 | 1791 | /* Mark non-returning functions. */ |
1792 | if (sym->attr.noreturn) | |
1793 | TREE_THIS_VOLATILE(fndecl) = 1; | |
1794 | ||
4ee9c684 | 1795 | sym->backend_decl = fndecl; |
1796 | ||
1797 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
1798 | pushdecl_top_level (fndecl); | |
1799 | ||
1800 | return fndecl; | |
1801 | } | |
1802 | ||
1803 | ||
1804 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 1805 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
1806 | a master function with alternate entry points. */ | |
4ee9c684 | 1807 | |
1b716045 | 1808 | static void |
d896f9b3 | 1809 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 1810 | { |
36b0a1b0 | 1811 | tree fndecl, type, attributes; |
4ee9c684 | 1812 | symbol_attribute attr; |
1b716045 | 1813 | tree result_decl; |
4ee9c684 | 1814 | gfc_formal_arglist *f; |
1815 | ||
22d678e8 | 1816 | gcc_assert (!sym->attr.external); |
4ee9c684 | 1817 | |
802532b9 | 1818 | if (sym->backend_decl) |
1819 | return; | |
1820 | ||
b31f705b | 1821 | /* Set the line and filename. sym->declared_at seems to point to the |
1822 | last statement for subroutines, but it'll do for now. */ | |
1823 | gfc_set_backend_locus (&sym->declared_at); | |
1824 | ||
4ee9c684 | 1825 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 1826 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 1827 | || DECL_FILE_SCOPE_P (current_function_decl) |
1828 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
1829 | == NAMESPACE_DECL)); | |
4ee9c684 | 1830 | |
1831 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1832 | fndecl = build_decl (input_location, |
1833 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 1834 | |
1236e28b | 1835 | attr = sym->attr; |
1836 | ||
e27454ee | 1837 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1838 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1839 | the opposite of declaring a function as static in C). */ |
e27454ee | 1840 | DECL_EXTERNAL (fndecl) = 0; |
1841 | ||
7d6b5754 | 1842 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
1843 | && (sym->ns->default_access == ACCESS_PRIVATE | |
1844 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
1845 | && gfc_option.flag_module_private))) | |
1846 | sym->attr.access = ACCESS_PRIVATE; | |
1847 | ||
e27454ee | 1848 | if (!current_function_decl |
c5cb468c | 1849 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 1850 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
1851 | || sym->attr.public_used)) | |
e27454ee | 1852 | TREE_PUBLIC (fndecl) = 1; |
1853 | ||
1236e28b | 1854 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
1855 | decl_attributes (&fndecl, attributes, 0); | |
1856 | ||
4ee9c684 | 1857 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 1858 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 1859 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 1860 | result_decl = NULL_TREE; |
1861 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
1862 | if (attr.function) | |
1863 | { | |
1864 | if (gfc_return_by_reference (sym)) | |
1865 | type = void_type_node; | |
1866 | else | |
1867 | { | |
1868 | if (sym->result != sym) | |
1869 | result_decl = gfc_sym_identifier (sym->result); | |
1870 | ||
1871 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
1872 | } | |
1873 | } | |
1874 | else | |
1875 | { | |
1876 | /* Look for alternate return placeholders. */ | |
1877 | int has_alternate_returns = 0; | |
1878 | for (f = sym->formal; f; f = f->next) | |
1879 | { | |
1880 | if (f->sym == NULL) | |
1881 | { | |
1882 | has_alternate_returns = 1; | |
1883 | break; | |
1884 | } | |
1885 | } | |
1886 | ||
1887 | if (has_alternate_returns) | |
1888 | type = integer_type_node; | |
1889 | else | |
1890 | type = void_type_node; | |
1891 | } | |
1892 | ||
e60a6f7b | 1893 | result_decl = build_decl (input_location, |
1894 | RESULT_DECL, result_decl, type); | |
540edea7 | 1895 | DECL_ARTIFICIAL (result_decl) = 1; |
1896 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 1897 | DECL_CONTEXT (result_decl) = fndecl; |
1898 | DECL_RESULT (fndecl) = result_decl; | |
1899 | ||
1900 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 1901 | layout_decl (result_decl, 0); */ |
4ee9c684 | 1902 | |
4ee9c684 | 1903 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 1904 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 1905 | |
f888a3fb | 1906 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 1907 | Fortran 95 sense is both pure and without side effects in the C |
1908 | sense. */ | |
bead0399 | 1909 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 1910 | { |
be393645 | 1911 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 1912 | including an alternate return. In that case it can also be |
231e961a | 1913 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 1914 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1915 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 1916 | TREE_SIDE_EFFECTS (fndecl) = 0; |
1917 | } | |
1918 | ||
36b0a1b0 | 1919 | |
4ee9c684 | 1920 | /* Layout the function declaration and put it in the binding level |
1921 | of the current function. */ | |
d896f9b3 | 1922 | |
4c197fd0 | 1923 | if (global) |
d896f9b3 | 1924 | pushdecl_top_level (fndecl); |
1925 | else | |
1926 | pushdecl (fndecl); | |
1b716045 | 1927 | |
16a40513 | 1928 | /* Perform name mangling if this is a top level or module procedure. */ |
1929 | if (current_function_decl == NULL_TREE) | |
1930 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
1931 | ||
1b716045 | 1932 | sym->backend_decl = fndecl; |
1933 | } | |
1934 | ||
1935 | ||
1936 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
1937 | ||
1938 | static void | |
1939 | create_function_arglist (gfc_symbol * sym) | |
1940 | { | |
1941 | tree fndecl; | |
1942 | gfc_formal_arglist *f; | |
d4163395 | 1943 | tree typelist, hidden_typelist; |
1944 | tree arglist, hidden_arglist; | |
1b716045 | 1945 | tree type; |
1946 | tree parm; | |
1947 | ||
1948 | fndecl = sym->backend_decl; | |
1949 | ||
e4b2c26c | 1950 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
1951 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 1952 | arglist = NULL_TREE; |
d4163395 | 1953 | hidden_arglist = NULL_TREE; |
e4b2c26c | 1954 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 1955 | |
1956 | if (sym->attr.entry_master) | |
1957 | { | |
1958 | type = TREE_VALUE (typelist); | |
e60a6f7b | 1959 | parm = build_decl (input_location, |
1960 | PARM_DECL, get_identifier ("__entry"), type); | |
1b716045 | 1961 | |
1962 | DECL_CONTEXT (parm) = fndecl; | |
1963 | DECL_ARG_TYPE (parm) = type; | |
1964 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 1965 | gfc_finish_decl (parm); |
d95efb59 | 1966 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 1967 | |
1968 | arglist = chainon (arglist, parm); | |
1969 | typelist = TREE_CHAIN (typelist); | |
1970 | } | |
1971 | ||
e4b2c26c | 1972 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 1973 | { |
d4163395 | 1974 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 1975 | |
e4b2c26c | 1976 | if (sym->ts.type == BT_CHARACTER) |
1977 | { | |
e4b2c26c | 1978 | /* Length of character result. */ |
d4163395 | 1979 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 1980 | |
e60a6f7b | 1981 | length = build_decl (input_location, |
1982 | PARM_DECL, | |
e4b2c26c | 1983 | get_identifier (".__result"), |
d4163395 | 1984 | len_type); |
eeebe20b | 1985 | if (!sym->ts.u.cl->length) |
e4b2c26c | 1986 | { |
eeebe20b | 1987 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 1988 | TREE_USED (length) = 1; |
4ee9c684 | 1989 | } |
22d678e8 | 1990 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 1991 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 1992 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 1993 | TREE_READONLY (length) = 1; |
b5b40b3f | 1994 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 1995 | gfc_finish_decl (length); |
eeebe20b | 1996 | if (sym->ts.u.cl->backend_decl == NULL |
1997 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 1998 | { |
1999 | gfc_symbol *arg; | |
2000 | tree backend_decl; | |
4ee9c684 | 2001 | |
eeebe20b | 2002 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2003 | { |
e60a6f7b | 2004 | tree len = build_decl (input_location, |
2005 | VAR_DECL, | |
d4163395 | 2006 | get_identifier ("..__result"), |
2007 | gfc_charlen_type_node); | |
2008 | DECL_ARTIFICIAL (len) = 1; | |
2009 | TREE_USED (len) = 1; | |
eeebe20b | 2010 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2011 | } |
4ee9c684 | 2012 | |
d4163395 | 2013 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2014 | arg = sym->result ? sym->result : sym; | |
2015 | backend_decl = arg->backend_decl; | |
2016 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2017 | type. */ | |
2018 | arg->backend_decl = NULL; | |
2019 | type = gfc_sym_type (arg); | |
2020 | arg->backend_decl = backend_decl; | |
2021 | type = build_reference_type (type); | |
2022 | } | |
2023 | } | |
4ee9c684 | 2024 | |
e60a6f7b | 2025 | parm = build_decl (input_location, |
2026 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2027 | |
d4163395 | 2028 | DECL_CONTEXT (parm) = fndecl; |
2029 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2030 | TREE_READONLY (parm) = 1; | |
2031 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2032 | gfc_finish_decl (parm); |
4ee9c684 | 2033 | |
d4163395 | 2034 | arglist = chainon (arglist, parm); |
2035 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2036 | |
d4163395 | 2037 | if (sym->ts.type == BT_CHARACTER) |
2038 | { | |
2039 | gfc_allocate_lang_decl (parm); | |
2040 | arglist = chainon (arglist, length); | |
e4b2c26c | 2041 | typelist = TREE_CHAIN (typelist); |
2042 | } | |
2043 | } | |
4ee9c684 | 2044 | |
d4163395 | 2045 | hidden_typelist = typelist; |
2046 | for (f = sym->formal; f; f = f->next) | |
2047 | if (f->sym != NULL) /* Ignore alternate returns. */ | |
2048 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2049 | ||
e4b2c26c | 2050 | for (f = sym->formal; f; f = f->next) |
2051 | { | |
2052 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2053 | |
e4b2c26c | 2054 | /* Ignore alternate returns. */ |
2055 | if (f->sym == NULL) | |
2056 | continue; | |
4ee9c684 | 2057 | |
e4b2c26c | 2058 | type = TREE_VALUE (typelist); |
4ee9c684 | 2059 | |
296db1d1 | 2060 | if (f->sym->ts.type == BT_CHARACTER |
2061 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2062 | { |
2063 | tree len_type = TREE_VALUE (hidden_typelist); | |
2064 | tree length = NULL_TREE; | |
617125a6 | 2065 | if (!f->sym->ts.deferred) |
2066 | gcc_assert (len_type == gfc_charlen_type_node); | |
2067 | else | |
2068 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2069 | |
2070 | strcpy (&name[1], f->sym->name); | |
2071 | name[0] = '_'; | |
e60a6f7b | 2072 | length = build_decl (input_location, |
2073 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2074 | |
d4163395 | 2075 | hidden_arglist = chainon (hidden_arglist, length); |
2076 | DECL_CONTEXT (length) = fndecl; | |
2077 | DECL_ARTIFICIAL (length) = 1; | |
2078 | DECL_ARG_TYPE (length) = len_type; | |
2079 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2080 | gfc_finish_decl (length); |
4ee9c684 | 2081 | |
a4abf8a0 | 2082 | /* Remember the passed value. */ |
eeebe20b | 2083 | if (f->sym->ts.u.cl->passed_length != NULL) |
6be7c32c | 2084 | { |
2085 | /* This can happen if the same type is used for multiple | |
2086 | arguments. We need to copy cl as otherwise | |
2087 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2088 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2089 | } |
eeebe20b | 2090 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2091 | |
d4163395 | 2092 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2093 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2094 | { |
d4163395 | 2095 | TREE_USED (length) = 1; |
eeebe20b | 2096 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2097 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2098 | } |
2099 | ||
2100 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2101 | ||
eeebe20b | 2102 | if (f->sym->ts.u.cl->backend_decl == NULL |
2103 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2104 | { |
eeebe20b | 2105 | if (f->sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2106 | gfc_create_string_length (f->sym); |
2107 | ||
2108 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2109 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2110 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2111 | else | |
2112 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2113 | } |
4ee9c684 | 2114 | } |
2115 | ||
d4163395 | 2116 | /* For non-constant length array arguments, make sure they use |
2117 | a different type node from TYPE_ARG_TYPES type. */ | |
2118 | if (f->sym->attr.dimension | |
2119 | && type == TREE_VALUE (typelist) | |
2120 | && TREE_CODE (type) == POINTER_TYPE | |
2121 | && GFC_ARRAY_TYPE_P (type) | |
2122 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2123 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2124 | { | |
2125 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2126 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2127 | else | |
2128 | type = gfc_sym_type (f->sym); | |
2129 | } | |
2130 | ||
cad0ddcf | 2131 | if (f->sym->attr.proc_pointer) |
2132 | type = build_pointer_type (type); | |
2133 | ||
2364aa60 | 2134 | if (f->sym->attr.volatile_) |
2135 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2136 | ||
69b1505f | 2137 | /* Build the argument declaration. */ |
e60a6f7b | 2138 | parm = build_decl (input_location, |
2139 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2140 | |
2364aa60 | 2141 | if (f->sym->attr.volatile_) |
2142 | { | |
2143 | TREE_THIS_VOLATILE (parm) = 1; | |
2144 | TREE_SIDE_EFFECTS (parm) = 1; | |
2145 | } | |
2146 | ||
d4163395 | 2147 | /* Fill in arg stuff. */ |
2148 | DECL_CONTEXT (parm) = fndecl; | |
2149 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2150 | /* All implementation args are read-only. */ | |
2151 | TREE_READONLY (parm) = 1; | |
98923a84 | 2152 | if (POINTER_TYPE_P (type) |
2153 | && (!f->sym->attr.proc_pointer | |
2154 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2155 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2156 | |
b9c7fce7 | 2157 | gfc_finish_decl (parm); |
d4163395 | 2158 | |
2159 | f->sym->backend_decl = parm; | |
2160 | ||
7dce33fe | 2161 | /* Coarrays which are descriptorless or assumed-shape pass with |
2162 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
85c94a64 | 2163 | if (f->sym->attr.codimension |
2164 | && gfc_option.coarray == GFC_FCOARRAY_LIB | |
7dce33fe | 2165 | && !f->sym->attr.allocatable) |
85c94a64 | 2166 | { |
2167 | tree caf_type; | |
2168 | tree token; | |
2169 | tree offset; | |
2170 | ||
2171 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2172 | && !sym->attr.is_bind_c); | |
2173 | caf_type = TREE_TYPE (f->sym->backend_decl); | |
2174 | ||
85c94a64 | 2175 | token = build_decl (input_location, PARM_DECL, |
2176 | create_tmp_var_name ("caf_token"), | |
2177 | build_qualified_type (pvoid_type_node, | |
2178 | TYPE_QUAL_RESTRICT)); | |
7dce33fe | 2179 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2180 | { | |
2181 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2182 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2183 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2184 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2185 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2186 | } | |
2187 | else | |
2188 | { | |
2189 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2190 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2191 | } | |
2192 | ||
85c94a64 | 2193 | DECL_CONTEXT (token) = fndecl; |
2194 | DECL_ARTIFICIAL (token) = 1; | |
2195 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2196 | TREE_READONLY (token) = 1; | |
2197 | hidden_arglist = chainon (hidden_arglist, token); | |
2198 | gfc_finish_decl (token); | |
2199 | ||
85c94a64 | 2200 | offset = build_decl (input_location, PARM_DECL, |
2201 | create_tmp_var_name ("caf_offset"), | |
2202 | gfc_array_index_type); | |
2203 | ||
7dce33fe | 2204 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2205 | { | |
2206 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2207 | == NULL_TREE); | |
2208 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2209 | } | |
2210 | else | |
2211 | { | |
2212 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2213 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2214 | } | |
85c94a64 | 2215 | DECL_CONTEXT (offset) = fndecl; |
2216 | DECL_ARTIFICIAL (offset) = 1; | |
2217 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2218 | TREE_READONLY (offset) = 1; | |
2219 | hidden_arglist = chainon (hidden_arglist, offset); | |
2220 | gfc_finish_decl (offset); | |
2221 | } | |
2222 | ||
d4163395 | 2223 | arglist = chainon (arglist, parm); |
e4b2c26c | 2224 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2225 | } |
e4b2c26c | 2226 | |
465e4a95 | 2227 | /* Add the hidden string length parameters, unless the procedure |
2228 | is bind(C). */ | |
2229 | if (!sym->attr.is_bind_c) | |
2230 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2231 | |
ebe27ea2 | 2232 | gcc_assert (hidden_typelist == NULL_TREE |
2233 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2234 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2235 | } |
e4b2c26c | 2236 | |
1b716045 | 2237 | /* Do the setup necessary before generating the body of a function. */ |
2238 | ||
2239 | static void | |
2240 | trans_function_start (gfc_symbol * sym) | |
2241 | { | |
2242 | tree fndecl; | |
2243 | ||
2244 | fndecl = sym->backend_decl; | |
2245 | ||
f888a3fb | 2246 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2247 | current_function_decl = fndecl; |
2248 | ||
f888a3fb | 2249 | /* Let the world know what we're about to do. */ |
1b716045 | 2250 | announce_function (fndecl); |
2251 | ||
16a40513 | 2252 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2253 | { |
f888a3fb | 2254 | /* Create RTL for function declaration. */ |
1b716045 | 2255 | rest_of_decl_compilation (fndecl, 1, 0); |
2256 | } | |
2257 | ||
f888a3fb | 2258 | /* Create RTL for function definition. */ |
1b716045 | 2259 | make_decl_rtl (fndecl); |
2260 | ||
00cf115c | 2261 | allocate_struct_function (fndecl, false); |
1b716045 | 2262 | |
f888a3fb | 2263 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2264 | pushlevel (); |
1b716045 | 2265 | } |
2266 | ||
2267 | /* Create thunks for alternate entry points. */ | |
2268 | ||
2269 | static void | |
d896f9b3 | 2270 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2271 | { |
2272 | gfc_formal_arglist *formal; | |
2273 | gfc_formal_arglist *thunk_formal; | |
2274 | gfc_entry_list *el; | |
2275 | gfc_symbol *thunk_sym; | |
2276 | stmtblock_t body; | |
2277 | tree thunk_fndecl; | |
1b716045 | 2278 | tree tmp; |
b31f705b | 2279 | locus old_loc; |
1b716045 | 2280 | |
2281 | /* This should always be a toplevel function. */ | |
22d678e8 | 2282 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2283 | |
4671339c | 2284 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2285 | for (el = ns->entries; el; el = el->next) |
2286 | { | |
f1f41a6c | 2287 | vec<tree, va_gc> *args = NULL; |
2288 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2289 | |
1b716045 | 2290 | thunk_sym = el->sym; |
2291 | ||
d896f9b3 | 2292 | build_function_decl (thunk_sym, global); |
1b716045 | 2293 | create_function_arglist (thunk_sym); |
2294 | ||
2295 | trans_function_start (thunk_sym); | |
2296 | ||
2297 | thunk_fndecl = thunk_sym->backend_decl; | |
2298 | ||
e5004242 | 2299 | gfc_init_block (&body); |
1b716045 | 2300 | |
f888a3fb | 2301 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2302 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2303 | vec_safe_push (args, tmp); |
1b716045 | 2304 | |
c6871095 | 2305 | if (thunk_sym->attr.function) |
2306 | { | |
2307 | if (gfc_return_by_reference (ns->proc_name)) | |
2308 | { | |
2309 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2310 | vec_safe_push (args, ref); |
c6871095 | 2311 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2312 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2313 | } |
2314 | } | |
2315 | ||
1b716045 | 2316 | for (formal = ns->proc_name->formal; formal; formal = formal->next) |
2317 | { | |
c6871095 | 2318 | /* Ignore alternate returns. */ |
2319 | if (formal->sym == NULL) | |
2320 | continue; | |
2321 | ||
1b716045 | 2322 | /* We don't have a clever way of identifying arguments, so resort to |
2323 | a brute-force search. */ | |
2324 | for (thunk_formal = thunk_sym->formal; | |
2325 | thunk_formal; | |
2326 | thunk_formal = thunk_formal->next) | |
2327 | { | |
2328 | if (thunk_formal->sym == formal->sym) | |
2329 | break; | |
2330 | } | |
2331 | ||
2332 | if (thunk_formal) | |
2333 | { | |
2334 | /* Pass the argument. */ | |
d95efb59 | 2335 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2336 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2337 | if (formal->sym->ts.type == BT_CHARACTER) |
2338 | { | |
eeebe20b | 2339 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2340 | vec_safe_push (string_args, tmp); |
1b716045 | 2341 | } |
2342 | } | |
2343 | else | |
2344 | { | |
2345 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2346 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2347 | if (formal->sym->ts.type == BT_CHARACTER) |
2348 | { | |
7d3075f6 | 2349 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2350 | vec_safe_push (string_args, tmp); |
1b716045 | 2351 | } |
2352 | } | |
2353 | } | |
2354 | ||
2355 | /* Call the master function. */ | |
f1f41a6c | 2356 | vec_safe_splice (args, string_args); |
1b716045 | 2357 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2358 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2359 | if (ns->proc_name->attr.mixed_entry_master) |
2360 | { | |
2361 | tree union_decl, field; | |
2362 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2363 | ||
e60a6f7b | 2364 | union_decl = build_decl (input_location, |
2365 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2366 | TREE_TYPE (master_type)); |
2367 | DECL_ARTIFICIAL (union_decl) = 1; | |
2368 | DECL_EXTERNAL (union_decl) = 0; | |
2369 | TREE_PUBLIC (union_decl) = 0; | |
2370 | TREE_USED (union_decl) = 1; | |
2371 | layout_decl (union_decl, 0); | |
2372 | pushdecl (union_decl); | |
2373 | ||
2374 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2375 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2376 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2377 | gfc_add_expr_to_block (&body, tmp); |
2378 | ||
2379 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2380 | field; field = DECL_CHAIN (field)) |
c6871095 | 2381 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2382 | thunk_sym->result->name) == 0) | |
2383 | break; | |
2384 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2385 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2386 | TREE_TYPE (field), union_decl, field, | |
2387 | NULL_TREE); | |
2388 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
f75d6b8a | 2389 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2390 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2391 | tmp = build1_v (RETURN_EXPR, tmp); |
2392 | } | |
2393 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2394 | != void_type_node) | |
2395 | { | |
fd779e1d | 2396 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2397 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2398 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2399 | tmp = build1_v (RETURN_EXPR, tmp); |
2400 | } | |
1b716045 | 2401 | gfc_add_expr_to_block (&body, tmp); |
2402 | ||
2403 | /* Finish off this function and send it for code generation. */ | |
2404 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2405 | tmp = getdecls (); |
cde2be84 | 2406 | poplevel (1, 1); |
1b716045 | 2407 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2408 | DECL_SAVED_TREE (thunk_fndecl) |
2409 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2410 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2411 | |
2412 | /* Output the GENERIC tree. */ | |
2413 | dump_function (TDI_original, thunk_fndecl); | |
2414 | ||
2415 | /* Store the end of the function, so that we get good line number | |
2416 | info for the epilogue. */ | |
2417 | cfun->function_end_locus = input_location; | |
2418 | ||
2419 | /* We're leaving the context of this function, so zap cfun. | |
2420 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2421 | tree_rest_of_compilation. */ | |
87d4aa85 | 2422 | set_cfun (NULL); |
1b716045 | 2423 | |
2424 | current_function_decl = NULL_TREE; | |
2425 | ||
bb982f66 | 2426 | cgraph_finalize_function (thunk_fndecl, true); |
1b716045 | 2427 | |
2428 | /* We share the symbols in the formal argument list with other entry | |
2429 | points and the master function. Clear them so that they are | |
2430 | recreated for each function. */ | |
2431 | for (formal = thunk_sym->formal; formal; formal = formal->next) | |
c6871095 | 2432 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2433 | { | |
2434 | formal->sym->backend_decl = NULL_TREE; | |
2435 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2436 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2437 | } |
2438 | ||
2439 | if (thunk_sym->attr.function) | |
1b716045 | 2440 | { |
c6871095 | 2441 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2442 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2443 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2444 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2445 | } |
2446 | } | |
b31f705b | 2447 | |
4671339c | 2448 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2449 | } |
2450 | ||
2451 | ||
2452 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2453 | points. If global is true, generate the function in the global binding |
2454 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2455 | |
2456 | void | |
d896f9b3 | 2457 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2458 | { |
2459 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2460 | build_function_decl (ns->proc_name, global); |
1b716045 | 2461 | |
f888a3fb | 2462 | /* Compile the entry thunks. */ |
1b716045 | 2463 | if (ns->entries) |
d896f9b3 | 2464 | build_entry_thunks (ns, global); |
1b716045 | 2465 | |
2466 | /* Now create the read argument list. */ | |
2467 | create_function_arglist (ns->proc_name); | |
2468 | } | |
2469 | ||
c750cc52 | 2470 | /* Return the decl used to hold the function return value. If |
3350e716 | 2471 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2472 | |
2473 | tree | |
c750cc52 | 2474 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2475 | { |
c750cc52 | 2476 | tree decl; |
2477 | tree length; | |
2478 | tree this_fake_result_decl; | |
2479 | tree this_function_decl; | |
4ee9c684 | 2480 | |
2481 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2482 | ||
c750cc52 | 2483 | if (parent_flag) |
2484 | { | |
2485 | this_fake_result_decl = parent_fake_result_decl; | |
2486 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2487 | } | |
2488 | else | |
2489 | { | |
2490 | this_fake_result_decl = current_fake_result_decl; | |
2491 | this_function_decl = current_function_decl; | |
2492 | } | |
2493 | ||
c6871095 | 2494 | if (sym |
c750cc52 | 2495 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2496 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2497 | && sym != sym->ns->proc_name) |
2498 | { | |
d4163395 | 2499 | tree t = NULL, var; |
c750cc52 | 2500 | if (this_fake_result_decl != NULL) |
2501 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2502 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2503 | break; | |
2504 | if (t) | |
2505 | return TREE_VALUE (t); | |
c750cc52 | 2506 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2507 | ||
2508 | if (parent_flag) | |
2509 | this_fake_result_decl = parent_fake_result_decl; | |
2510 | else | |
2511 | this_fake_result_decl = current_fake_result_decl; | |
2512 | ||
d4163395 | 2513 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2514 | { |
2515 | tree field; | |
2516 | ||
2517 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2518 | field; field = DECL_CHAIN (field)) |
c6871095 | 2519 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2520 | sym->name) == 0) | |
2521 | break; | |
2522 | ||
2523 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2524 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2525 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2526 | } |
c750cc52 | 2527 | |
2528 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2529 | if (parent_flag) | |
2530 | gfc_add_decl_to_parent_function (var); | |
2531 | else | |
2532 | gfc_add_decl_to_function (var); | |
2533 | ||
d4163395 | 2534 | SET_DECL_VALUE_EXPR (var, decl); |
2535 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2536 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2537 | |
2538 | TREE_CHAIN (this_fake_result_decl) | |
2539 | = tree_cons (get_identifier (sym->name), var, | |
2540 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2541 | return var; |
c6871095 | 2542 | } |
2543 | ||
c750cc52 | 2544 | if (this_fake_result_decl != NULL_TREE) |
2545 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2546 | |
2547 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2548 | sym is NULL. */ | |
2549 | if (!sym) | |
2550 | return NULL_TREE; | |
2551 | ||
d4163395 | 2552 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2553 | { |
eeebe20b | 2554 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2555 | length = gfc_create_string_length (sym); |
2556 | else | |
eeebe20b | 2557 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2558 | if (TREE_CODE (length) == VAR_DECL |
2559 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2560 | gfc_add_decl_to_function (length); |
4ee9c684 | 2561 | } |
2562 | ||
2563 | if (gfc_return_by_reference (sym)) | |
2564 | { | |
c750cc52 | 2565 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2566 | |
c750cc52 | 2567 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2568 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2569 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2570 | |
2571 | TREE_USED (decl) = 1; | |
2572 | if (sym->as) | |
2573 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2574 | } | |
2575 | else | |
2576 | { | |
2577 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2578 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2579 | |
3350e716 | 2580 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2581 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2582 | VAR_DECL, get_identifier (name), |
3350e716 | 2583 | gfc_sym_type (sym)); |
2584 | else | |
1e71b314 | 2585 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2586 | VAR_DECL, get_identifier (name), |
3350e716 | 2587 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2588 | DECL_ARTIFICIAL (decl) = 1; |
2589 | DECL_EXTERNAL (decl) = 0; | |
2590 | TREE_PUBLIC (decl) = 0; | |
2591 | TREE_USED (decl) = 1; | |
764f1175 | 2592 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2593 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2594 | |
2595 | layout_decl (decl, 0); | |
2596 | ||
c750cc52 | 2597 | if (parent_flag) |
2598 | gfc_add_decl_to_parent_function (decl); | |
2599 | else | |
2600 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2601 | } |
2602 | ||
c750cc52 | 2603 | if (parent_flag) |
2604 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2605 | else | |
2606 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2607 | |
2608 | return decl; | |
2609 | } | |
2610 | ||
2611 | ||
2612 | /* Builds a function decl. The remaining parameters are the types of the | |
2613 | function arguments. Negative nargs indicates a varargs function. */ | |
2614 | ||
8ce86007 | 2615 | static tree |
2616 | build_library_function_decl_1 (tree name, const char *spec, | |
2617 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2618 | { |
f1f41a6c | 2619 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2620 | tree fntype; |
2621 | tree fndecl; | |
4ee9c684 | 2622 | int n; |
2623 | ||
2624 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2625 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2626 | |
4ee9c684 | 2627 | /* Create a list of the argument types. */ |
f1f41a6c | 2628 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2629 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2630 | { |
5edc3af9 | 2631 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2632 | arglist->quick_push (argtype); |
4ee9c684 | 2633 | } |
2634 | ||
2635 | /* Build the function type and decl. */ | |
5edc3af9 | 2636 | if (nargs >= 0) |
2637 | fntype = build_function_type_vec (rettype, arglist); | |
2638 | else | |
2639 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2640 | if (spec) |
2641 | { | |
2642 | tree attr_args = build_tree_list (NULL_TREE, | |
2643 | build_string (strlen (spec), spec)); | |
2644 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2645 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2646 | fntype = build_type_attribute_variant (fntype, attrs); | |
2647 | } | |
e60a6f7b | 2648 | fndecl = build_decl (input_location, |
2649 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2650 | |
2651 | /* Mark this decl as external. */ | |
2652 | DECL_EXTERNAL (fndecl) = 1; | |
2653 | TREE_PUBLIC (fndecl) = 1; | |
2654 | ||
4ee9c684 | 2655 | pushdecl (fndecl); |
2656 | ||
b2c4af5e | 2657 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2658 | |
2659 | return fndecl; | |
2660 | } | |
2661 | ||
8ce86007 | 2662 | /* Builds a function decl. The remaining parameters are the types of the |
2663 | function arguments. Negative nargs indicates a varargs function. */ | |
2664 | ||
2665 | tree | |
2666 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2667 | { | |
2668 | tree ret; | |
2669 | va_list args; | |
2670 | va_start (args, nargs); | |
2671 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2672 | va_end (args); | |
2673 | return ret; | |
2674 | } | |
2675 | ||
2676 | /* Builds a function decl. The remaining parameters are the types of the | |
2677 | function arguments. Negative nargs indicates a varargs function. | |
2678 | The SPEC parameter specifies the function argument and return type | |
2679 | specification according to the fnspec function type attribute. */ | |
2680 | ||
4bf69bc3 | 2681 | tree |
8ce86007 | 2682 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2683 | tree rettype, int nargs, ...) | |
2684 | { | |
2685 | tree ret; | |
2686 | va_list args; | |
2687 | va_start (args, nargs); | |
2688 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2689 | va_end (args); | |
2690 | return ret; | |
2691 | } | |
2692 | ||
4ee9c684 | 2693 | static void |
2694 | gfc_build_intrinsic_function_decls (void) | |
2695 | { | |
90ba9145 | 2696 | tree gfc_int4_type_node = gfc_get_int_type (4); |
2697 | tree gfc_int8_type_node = gfc_get_int_type (8); | |
920e54ef | 2698 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 2699 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 2700 | tree pchar1_type_node = gfc_get_pchar_type (1); |
2701 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 2702 | |
4ee9c684 | 2703 | /* String functions. */ |
241ecdc7 | 2704 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
2705 | get_identifier (PREFIX("compare_string")), "..R.R", | |
2706 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
2707 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2708 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 2709 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 2710 | |
2711 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
2712 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
2713 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
2714 | gfc_charlen_type_node, pchar1_type_node, | |
2715 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 2716 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 2717 | |
2718 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
2719 | get_identifier (PREFIX("string_len_trim")), "..R", | |
2720 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2721 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 2722 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 2723 | |
2724 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
2725 | get_identifier (PREFIX("string_index")), "..R.R.", | |
2726 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2727 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2728 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 2729 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 2730 | |
2731 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
2732 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
2733 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2734 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2735 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 2736 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 2737 | |
2738 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
2739 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
2740 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2741 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2742 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 2743 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 2744 | |
2745 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
2746 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
2747 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2748 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
2749 | pchar1_type_node); | |
2750 | ||
2751 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
2752 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
2753 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2754 | build_pointer_type (pchar1_type_node), integer_type_node, | |
2755 | integer_type_node); | |
2756 | ||
2757 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
2758 | get_identifier (PREFIX("adjustl")), ".W.R", | |
2759 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2760 | pchar1_type_node); | |
bc351485 | 2761 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 2762 | |
2763 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
2764 | get_identifier (PREFIX("adjustr")), ".W.R", | |
2765 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2766 | pchar1_type_node); | |
bc351485 | 2767 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 2768 | |
2769 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
2770 | get_identifier (PREFIX("select_string")), ".R.R.", | |
2771 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2772 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 2773 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 2774 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 2775 | |
2776 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2777 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
2778 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
2779 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2780 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 2781 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 2782 | |
2783 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2784 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
2785 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
2786 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
2787 | pchar4_type_node); | |
bc351485 | 2788 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 2789 | |
2790 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2791 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
2792 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2793 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 2794 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 2795 | |
2796 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
2797 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
2798 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2799 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2800 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 2801 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 2802 | |
2803 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
2804 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
2805 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2806 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2807 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 2808 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 2809 | |
2810 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
2811 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
2812 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2813 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2814 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 2815 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 2816 | |
2817 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2818 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
2819 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2820 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
2821 | pchar4_type_node); | |
2822 | ||
2823 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
2824 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
2825 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2826 | build_pointer_type (pchar4_type_node), integer_type_node, | |
2827 | integer_type_node); | |
2828 | ||
2829 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
2830 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
2831 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2832 | pchar4_type_node); | |
bc351485 | 2833 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 2834 | |
2835 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
2836 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
2837 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2838 | pchar4_type_node); | |
bc351485 | 2839 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 2840 | |
2841 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2842 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
2843 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2844 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 2845 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 2846 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 2847 | |
2848 | ||
2849 | /* Conversion between character kinds. */ | |
2850 | ||
241ecdc7 | 2851 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
2852 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
2853 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
2854 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 2855 | |
241ecdc7 | 2856 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
2857 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
2858 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
2859 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 2860 | |
40b806de | 2861 | /* Misc. functions. */ |
5fcc6ec2 | 2862 | |
241ecdc7 | 2863 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
2864 | get_identifier (PREFIX("ttynam")), ".W", | |
2865 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2866 | integer_type_node); | |
2867 | ||
2868 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
2869 | get_identifier (PREFIX("fdate")), ".W", | |
2870 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
2871 | ||
2872 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
2873 | get_identifier (PREFIX("ctime")), ".W", | |
2874 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2875 | gfc_int8_type_node); | |
2876 | ||
2877 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
2878 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
2879 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 2880 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 2881 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 2882 | |
2883 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
2884 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
2885 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 2886 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 2887 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 2888 | |
2889 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
2890 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
2891 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
2892 | pvoid_type_node); | |
537824d1 | 2893 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 2894 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 2895 | |
4ee9c684 | 2896 | /* Power functions. */ |
76834664 | 2897 | { |
920e54ef | 2898 | tree ctype, rtype, itype, jtype; |
2899 | int rkind, ikind, jkind; | |
2900 | #define NIKINDS 3 | |
2901 | #define NRKINDS 4 | |
2902 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
2903 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
2904 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
2905 | ||
2906 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 2907 | { |
920e54ef | 2908 | itype = gfc_get_int_type (ikinds[ikind]); |
2909 | ||
2910 | for (jkind=0; jkind < NIKINDS; jkind++) | |
2911 | { | |
2912 | jtype = gfc_get_int_type (ikinds[jkind]); | |
2913 | if (itype && jtype) | |
2914 | { | |
2915 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
2916 | ikinds[jkind]); | |
2917 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
2918 | gfc_build_library_function_decl (get_identifier (name), | |
2919 | jtype, 2, jtype, itype); | |
2177d98b | 2920 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 2921 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 2922 | } |
2923 | } | |
2924 | ||
2925 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 2926 | { |
920e54ef | 2927 | rtype = gfc_get_real_type (rkinds[rkind]); |
2928 | if (rtype && itype) | |
2929 | { | |
2930 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
2931 | ikinds[ikind]); | |
2932 | gfor_fndecl_math_powi[rkind][ikind].real = | |
2933 | gfc_build_library_function_decl (get_identifier (name), | |
2934 | rtype, 2, rtype, itype); | |
2177d98b | 2935 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 2936 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 2937 | } |
2938 | ||
2939 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
2940 | if (ctype && itype) | |
2941 | { | |
2942 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
2943 | ikinds[ikind]); | |
2944 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
2945 | gfc_build_library_function_decl (get_identifier (name), | |
2946 | ctype, 2,ctype, itype); | |
2177d98b | 2947 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 2948 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 2949 | } |
76834664 | 2950 | } |
2951 | } | |
920e54ef | 2952 | #undef NIKINDS |
2953 | #undef NRKINDS | |
76834664 | 2954 | } |
2955 | ||
241ecdc7 | 2956 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
2957 | get_identifier (PREFIX("ishftc4")), | |
2958 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
2959 | gfc_int4_type_node); | |
bc351485 | 2960 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
2961 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
241ecdc7 | 2962 | |
2963 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( | |
2964 | get_identifier (PREFIX("ishftc8")), | |
2965 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
2966 | gfc_int4_type_node); | |
bc351485 | 2967 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
2968 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 2969 | |
920e54ef | 2970 | if (gfc_int16_type_node) |
bc351485 | 2971 | { |
2972 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 2973 | get_identifier (PREFIX("ishftc16")), |
2974 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
2975 | gfc_int4_type_node); | |
bc351485 | 2976 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
2977 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
2978 | } | |
920e54ef | 2979 | |
4e8e57b0 | 2980 | /* BLAS functions. */ |
2981 | { | |
36c921b9 | 2982 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 2983 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
2984 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
2985 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
2986 | tree pz = build_pointer_type | |
2987 | (gfc_get_complex_type (gfc_default_double_kind)); | |
2988 | ||
2989 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
2990 | (get_identifier | |
2991 | (gfc_option.flag_underscoring ? "sgemm_" | |
2992 | : "sgemm"), | |
2993 | void_type_node, 15, pchar_type_node, | |
2994 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 2995 | ps, pint, ps, ps, pint, integer_type_node, |
2996 | integer_type_node); | |
4e8e57b0 | 2997 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
2998 | (get_identifier | |
2999 | (gfc_option.flag_underscoring ? "dgemm_" | |
3000 | : "dgemm"), | |
3001 | void_type_node, 15, pchar_type_node, | |
3002 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3003 | pd, pint, pd, pd, pint, integer_type_node, |
3004 | integer_type_node); | |
4e8e57b0 | 3005 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3006 | (get_identifier | |
3007 | (gfc_option.flag_underscoring ? "cgemm_" | |
3008 | : "cgemm"), | |
3009 | void_type_node, 15, pchar_type_node, | |
3010 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3011 | pc, pint, pc, pc, pint, integer_type_node, |
3012 | integer_type_node); | |
4e8e57b0 | 3013 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3014 | (get_identifier | |
3015 | (gfc_option.flag_underscoring ? "zgemm_" | |
3016 | : "zgemm"), | |
3017 | void_type_node, 15, pchar_type_node, | |
3018 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3019 | pz, pint, pz, pz, pint, integer_type_node, |
3020 | integer_type_node); | |
4e8e57b0 | 3021 | } |
3022 | ||
4ee9c684 | 3023 | /* Other functions. */ |
241ecdc7 | 3024 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3025 | get_identifier (PREFIX("size0")), ".R", | |
3026 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3027 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3028 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3029 | |
3030 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3031 | get_identifier (PREFIX("size1")), ".R", | |
3032 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3033 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3034 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3035 | |
3036 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3037 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3038 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3039 | } |
3040 | ||
3041 | ||
3042 | /* Make prototypes for runtime library functions. */ | |
3043 | ||
3044 | void | |
3045 | gfc_build_builtin_function_decls (void) | |
3046 | { | |
90ba9145 | 3047 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3048 | |
241ecdc7 | 3049 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3050 | get_identifier (PREFIX("stop_numeric")), | |
3051 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3052 | /* STOP doesn't return. */ |
98ccec97 | 3053 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3054 | ||
dff2ea5f | 3055 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3056 | get_identifier (PREFIX("stop_numeric_f08")), | |
3057 | void_type_node, 1, gfc_int4_type_node); | |
3058 | /* STOP doesn't return. */ | |
3059 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3060 | ||
241ecdc7 | 3061 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3062 | get_identifier (PREFIX("stop_string")), ".R.", | |
3063 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3064 | /* STOP doesn't return. */ |
241ecdc7 | 3065 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3066 | |
241ecdc7 | 3067 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3068 | get_identifier (PREFIX("error_stop_numeric")), | |
3069 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3070 | /* ERROR STOP doesn't return. */ |
3071 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3072 | ||
241ecdc7 | 3073 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3074 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3075 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3076 | /* ERROR STOP doesn't return. */ |
3077 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3078 | ||
241ecdc7 | 3079 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3080 | get_identifier (PREFIX("pause_numeric")), | |
3081 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3082 | |
241ecdc7 | 3083 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3084 | get_identifier (PREFIX("pause_string")), ".R.", | |
3085 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3086 | |
241ecdc7 | 3087 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3088 | get_identifier (PREFIX("runtime_error")), ".R", | |
3089 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3090 | /* The runtime_error function does not return. */ |
3091 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3092 | |
241ecdc7 | 3093 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3094 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3095 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3096 | /* The runtime_error_at function does not return. */ |
3097 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
3098 | ||
241ecdc7 | 3099 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3100 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3101 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3102 | ||
3103 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3104 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3105 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3106 | pchar_type_node); | |
3107 | ||
3108 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3109 | get_identifier (PREFIX("os_error")), ".R", | |
3110 | void_type_node, 1, pchar_type_node); | |
9915365e | 3111 | /* The runtime_error function does not return. */ |
3112 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3113 | ||
241ecdc7 | 3114 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3115 | get_identifier (PREFIX("set_args")), | |
3116 | void_type_node, 2, integer_type_node, | |
3117 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3118 | |
241ecdc7 | 3119 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3120 | get_identifier (PREFIX("set_fpe")), | |
3121 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3122 | |
56c7c2d7 | 3123 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3124 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3125 | get_identifier (PREFIX("set_options")), "..R", | |
3126 | void_type_node, 2, integer_type_node, | |
3127 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3128 | |
241ecdc7 | 3129 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3130 | get_identifier (PREFIX("set_convert")), | |
3131 | void_type_node, 1, integer_type_node); | |
15774a8b | 3132 | |
241ecdc7 | 3133 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3134 | get_identifier (PREFIX("set_record_marker")), | |
3135 | void_type_node, 1, integer_type_node); | |
f23886ab | 3136 | |
241ecdc7 | 3137 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3138 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3139 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3140 | |
8ce86007 | 3141 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3142 | get_identifier (PREFIX("internal_pack")), ".r", |
3143 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3144 | |
8ce86007 | 3145 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3146 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3147 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3148 | ||
3149 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3150 | get_identifier (PREFIX("associated")), ".RR", | |
3151 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3152 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3153 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3154 | |
70b5944a | 3155 | /* Coarray library calls. */ |
3156 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
3157 | { | |
3158 | tree pint_type, pppchar_type; | |
3159 | ||
3160 | pint_type = build_pointer_type (integer_type_node); | |
3161 | pppchar_type | |
3162 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3163 | ||
3164 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3165 | get_identifier (PREFIX("caf_init")), void_type_node, | |
3166 | 4, pint_type, pppchar_type, pint_type, pint_type); | |
3167 | ||
3168 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3169 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3170 | ||
a961ca30 | 3171 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3172 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3173 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3174 | pchar_type_node, integer_type_node); |
3175 | ||
3176 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3177 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3178 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3179 | |
70b5944a | 3180 | gfor_fndecl_caf_critical = gfc_build_library_function_decl ( |
3181 | get_identifier (PREFIX("caf_critical")), void_type_node, 0); | |
3182 | ||
3183 | gfor_fndecl_caf_end_critical = gfc_build_library_function_decl ( | |
3184 | get_identifier (PREFIX("caf_end_critical")), void_type_node, 0); | |
3185 | ||
3186 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3187 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
3188 | 3, pint_type, build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3189 | |
3190 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3191 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3192 | 5, integer_type_node, pint_type, pint_type, | |
3193 | build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3194 | |
3195 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3196 | get_identifier (PREFIX("caf_error_stop")), | |
3197 | void_type_node, 1, gfc_int4_type_node); | |
3198 | /* CAF's ERROR STOP doesn't return. */ | |
3199 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3200 | ||
3201 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3202 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3203 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3204 | /* CAF's ERROR STOP doesn't return. */ | |
3205 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
3206 | } | |
3207 | ||
4ee9c684 | 3208 | gfc_build_intrinsic_function_decls (); |
3209 | gfc_build_intrinsic_lib_fndecls (); | |
3210 | gfc_build_io_library_fndecls (); | |
3211 | } | |
3212 | ||
3213 | ||
231e961a | 3214 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3215 | |
c5faa799 | 3216 | static void |
3217 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3218 | gfc_wrapped_block *block) | |
4ee9c684 | 3219 | { |
c5faa799 | 3220 | stmtblock_t init; |
4ee9c684 | 3221 | |
b9c7fce7 | 3222 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3223 | |
c5faa799 | 3224 | gfc_start_block (&init); |
4ee9c684 | 3225 | |
3226 | /* Evaluate the string length expression. */ | |
c5faa799 | 3227 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3228 | |
c5faa799 | 3229 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3230 | |
c5faa799 | 3231 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3232 | } |
3233 | ||
3234 | ||
3235 | /* Allocate and cleanup an automatic character variable. */ | |
3236 | ||
c5faa799 | 3237 | static void |
3238 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3239 | { |
c5faa799 | 3240 | stmtblock_t init; |
4ee9c684 | 3241 | tree decl; |
4ee9c684 | 3242 | tree tmp; |
3243 | ||
22d678e8 | 3244 | gcc_assert (sym->backend_decl); |
eeebe20b | 3245 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3246 | |
3714c8b6 | 3247 | gfc_init_block (&init); |
4ee9c684 | 3248 | |
3249 | /* Evaluate the string length expression. */ | |
c5faa799 | 3250 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3251 | |
c5faa799 | 3252 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3253 | |
4ee9c684 | 3254 | decl = sym->backend_decl; |
3255 | ||
afcf285e | 3256 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3257 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3258 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3259 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3260 | |
c5faa799 | 3261 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3262 | } |
3263 | ||
c8f1568f | 3264 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3265 | ||
c5faa799 | 3266 | static void |
3267 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3268 | { |
c5faa799 | 3269 | stmtblock_t init; |
c8f1568f | 3270 | |
3271 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3272 | gfc_start_block (&init); |
c8f1568f | 3273 | |
3274 | /* Set the initial value to length. See the comments in | |
3275 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3276 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3277 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3278 | |
c5faa799 | 3279 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3280 | } |
3281 | ||
d4163395 | 3282 | static void |
3283 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3284 | { | |
3285 | tree t = *tp, var, val; | |
3286 | ||
3287 | if (t == NULL || t == error_mark_node) | |
3288 | return; | |
3289 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3290 | return; | |
3291 | ||
3292 | if (TREE_CODE (t) == SAVE_EXPR) | |
3293 | { | |
3294 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3295 | { | |
3296 | *tp = TREE_OPERAND (t, 0); | |
3297 | return; | |
3298 | } | |
3299 | val = TREE_OPERAND (t, 0); | |
3300 | } | |
3301 | else | |
3302 | val = t; | |
3303 | ||
3304 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3305 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3306 | gfc_add_modify (body, var, val); |
d4163395 | 3307 | if (TREE_CODE (t) == SAVE_EXPR) |
3308 | TREE_OPERAND (t, 0) = var; | |
3309 | *tp = var; | |
3310 | } | |
3311 | ||
3312 | static void | |
3313 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3314 | { | |
3315 | tree t; | |
3316 | ||
3317 | if (type == NULL || type == error_mark_node) | |
3318 | return; | |
3319 | ||
3320 | type = TYPE_MAIN_VARIANT (type); | |
3321 | ||
3322 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3323 | { | |
3324 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3325 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3326 | ||
3327 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3328 | { | |
3329 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3330 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3331 | } | |
3332 | } | |
3333 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3334 | { | |
3335 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3336 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3337 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3338 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3339 | ||
3340 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3341 | { | |
3342 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3343 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3344 | } | |
3345 | } | |
3346 | } | |
3347 | ||
3348 | /* Make sure all type sizes and array domains are either constant, | |
3349 | or variable or parameter decls. This is a simplified variant | |
3350 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3351 | variables in the expressions have been gimplified yet. | |
3352 | As type sizes and domains for various variable length arrays | |
3353 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3354 | time, without this routine gimplify_type_sizes in the middle-end | |
3355 | could result in the type sizes being gimplified earlier than where | |
3356 | those variables are initialized. */ | |
3357 | ||
3358 | void | |
3359 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3360 | { | |
3361 | tree type = TREE_TYPE (sym->backend_decl); | |
3362 | ||
3363 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3364 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3365 | { | |
3366 | if (! current_fake_result_decl) | |
3367 | return; | |
3368 | ||
3369 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3370 | } | |
3371 | ||
3372 | while (POINTER_TYPE_P (type)) | |
3373 | type = TREE_TYPE (type); | |
3374 | ||
3375 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3376 | { | |
3377 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3378 | ||
3379 | while (POINTER_TYPE_P (etype)) | |
3380 | etype = TREE_TYPE (etype); | |
3381 | ||
3382 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3383 | } | |
3384 | ||
3385 | gfc_trans_vla_type_sizes_1 (type, body); | |
3386 | } | |
3387 | ||
4ee9c684 | 3388 | |
f0d4969f | 3389 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3390 | and using trans_assignment to do the work. Set dealloc to false |
3391 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3392 | void |
3393 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3394 | { |
f0d4969f | 3395 | gfc_expr *e; |
87114d2e | 3396 | tree tmp; |
3397 | tree present; | |
3398 | ||
c5faa799 | 3399 | gcc_assert (block); |
3400 | ||
f0d4969f | 3401 | gcc_assert (!sym->attr.allocatable); |
3402 | gfc_set_sym_referenced (sym); | |
3403 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3404 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3405 | if (sym->attr.dummy && (sym->attr.optional |
3406 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3407 | { |
f0d4969f | 3408 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3409 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3410 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3411 | } |
c5faa799 | 3412 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3413 | gfc_free_expr (e); |
87114d2e | 3414 | } |
3415 | ||
3416 | ||
8714fc76 | 3417 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3418 | them their default initializer, if they do not have allocatable | |
3419 | components, they have their allocatable components deallocated. */ | |
3420 | ||
c5faa799 | 3421 | static void |
3422 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3423 | { |
c5faa799 | 3424 | stmtblock_t init; |
f0d4969f | 3425 | gfc_formal_arglist *f; |
8714fc76 | 3426 | tree tmp; |
5907c3ea | 3427 | tree present; |
f0d4969f | 3428 | |
c5faa799 | 3429 | gfc_init_block (&init); |
f0d4969f | 3430 | for (f = proc_sym->formal; f; f = f->next) |
3431 | if (f->sym && f->sym->attr.intent == INTENT_OUT | |
c49db15e | 3432 | && !f->sym->attr.pointer |
3433 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3434 | { |
c38054a8 | 3435 | if (f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) |
8714fc76 | 3436 | { |
eeebe20b | 3437 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, |
8714fc76 | 3438 | f->sym->backend_decl, |
3439 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3440 | |
c38054a8 | 3441 | if (f->sym->attr.optional |
3442 | || f->sym->ns->proc_name->attr.entry_master) | |
3443 | { | |
3444 | present = gfc_conv_expr_present (f->sym); | |
2be9d8f1 | 3445 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), |
3446 | present, tmp, | |
3447 | build_empty_stmt (input_location)); | |
c38054a8 | 3448 | } |
5907c3ea | 3449 | |
c5faa799 | 3450 | gfc_add_expr_to_block (&init, tmp); |
8714fc76 | 3451 | } |
c38054a8 | 3452 | else if (f->sym->value) |
c5faa799 | 3453 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3454 | } |
c56d57d6 | 3455 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3456 | && f->sym->ts.type == BT_CLASS | |
3457 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
3458 | && CLASS_DATA (f->sym)->ts.u.derived->attr.alloc_comp) | |
3459 | { | |
6b3952d7 | 3460 | tmp = gfc_class_data_get (f->sym->backend_decl); |
3461 | if (CLASS_DATA (f->sym)->as == NULL) | |
3462 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
c56d57d6 | 3463 | tmp = gfc_deallocate_alloc_comp (CLASS_DATA (f->sym)->ts.u.derived, |
3464 | tmp, | |
3465 | CLASS_DATA (f->sym)->as ? | |
3466 | CLASS_DATA (f->sym)->as->rank : 0); | |
3467 | ||
3468 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3469 | { | |
3470 | present = gfc_conv_expr_present (f->sym); | |
3471 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3472 | present, tmp, | |
3473 | build_empty_stmt (input_location)); | |
3474 | } | |
3475 | ||
3476 | gfc_add_expr_to_block (&init, tmp); | |
3477 | } | |
f0d4969f | 3478 | |
c5faa799 | 3479 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3480 | } |
3481 | ||
87114d2e | 3482 | |
4ee9c684 | 3483 | /* Generate function entry and exit code, and add it to the function body. |
3484 | This includes: | |
f888a3fb | 3485 | Allocation and initialization of array variables. |
4ee9c684 | 3486 | Allocation of character string variables. |
c8f1568f | 3487 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3488 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3489 | Initialization of ASSOCIATE names. |
0a96a7cc | 3490 | Automatic deallocation. */ |
4ee9c684 | 3491 | |
89ac8ba1 | 3492 | void |
3493 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3494 | { |
3495 | locus loc; | |
3496 | gfc_symbol *sym; | |
d4163395 | 3497 | gfc_formal_arglist *f; |
c5faa799 | 3498 | stmtblock_t tmpblock; |
25dd7350 | 3499 | bool seen_trans_deferred_array = false; |
617125a6 | 3500 | tree tmp = NULL; |
3501 | gfc_expr *e; | |
3502 | gfc_se se; | |
3503 | stmtblock_t init; | |
4ee9c684 | 3504 | |
3505 | /* Deal with implicit return variables. Explicit return variables will | |
3506 | already have been added. */ | |
3507 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3508 | { | |
3509 | if (!current_fake_result_decl) | |
3510 | { | |
c6871095 | 3511 | gfc_entry_list *el = NULL; |
3512 | if (proc_sym->attr.entry_master) | |
3513 | { | |
3514 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3515 | if (el->sym != el->sym->result) | |
3516 | break; | |
3517 | } | |
fa7b6574 | 3518 | /* TODO: move to the appropriate place in resolve.c. */ |
3519 | if (warn_return_type && el == NULL) | |
3520 | gfc_warning ("Return value of function '%s' at %L not set", | |
3521 | proc_sym->name, &proc_sym->declared_at); | |
4ee9c684 | 3522 | } |
c6871095 | 3523 | else if (proc_sym->as) |
4ee9c684 | 3524 | { |
d4163395 | 3525 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3526 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3527 | |
3528 | /* An automatic character length, pointer array result. */ | |
3529 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3530 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3531 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3532 | } |
3533 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3534 | { | |
617125a6 | 3535 | if (proc_sym->ts.deferred) |
3536 | { | |
3537 | tmp = NULL; | |
da2c4122 | 3538 | gfc_save_backend_locus (&loc); |
3539 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3540 | gfc_start_block (&init); |
3541 | /* Zero the string length on entry. */ | |
3542 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3543 | build_int_cst (gfc_charlen_type_node, 0)); | |
3544 | /* Null the pointer. */ | |
3545 | e = gfc_lval_expr_from_sym (proc_sym); | |
3546 | gfc_init_se (&se, NULL); | |
3547 | se.want_pointer = 1; | |
3548 | gfc_conv_expr (&se, e); | |
3549 | gfc_free_expr (e); | |
3550 | tmp = se.expr; | |
3551 | gfc_add_modify (&init, tmp, | |
3552 | fold_convert (TREE_TYPE (se.expr), | |
3553 | null_pointer_node)); | |
da2c4122 | 3554 | gfc_restore_backend_locus (&loc); |
617125a6 | 3555 | |
3556 | /* Pass back the string length on exit. */ | |
3557 | tmp = proc_sym->ts.u.cl->passed_length; | |
3558 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3559 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3560 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3561 | gfc_charlen_type_node, tmp, | |
3562 | proc_sym->ts.u.cl->backend_decl); | |
3563 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3564 | } | |
3565 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 3566 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3567 | } |
3568 | else | |
bdaed7d2 | 3569 | gcc_assert (gfc_option.flag_f2c |
3570 | && proc_sym->ts.type == BT_COMPLEX); | |
4ee9c684 | 3571 | } |
3572 | ||
87114d2e | 3573 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
3574 | should be done here so that the offsets and lbounds of arrays | |
3575 | are available. */ | |
da2c4122 | 3576 | gfc_save_backend_locus (&loc); |
3577 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 3578 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 3579 | gfc_restore_backend_locus (&loc); |
87114d2e | 3580 | |
4ee9c684 | 3581 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
3582 | { | |
2294b616 | 3583 | bool sym_has_alloc_comp = (sym->ts.type == BT_DERIVED) |
eeebe20b | 3584 | && sym->ts.u.derived->attr.alloc_comp; |
8f3f9eab | 3585 | if (sym->assoc) |
3c82e013 | 3586 | continue; |
3587 | ||
a56d63bc | 3588 | if (sym->attr.subref_array_pointer |
3589 | && GFC_DECL_SPAN (sym->backend_decl) | |
3590 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
3591 | { | |
3592 | gfc_init_block (&tmpblock); | |
3593 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
3594 | build_int_cst (gfc_array_index_type, 0)); | |
3595 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3596 | NULL_TREE); | |
3597 | } | |
3598 | ||
7a777e43 | 3599 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 3600 | { |
f7a6fca4 | 3601 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ |
3602 | array_type tmp = sym->as->type; | |
3603 | if (tmp == AS_ASSUMED_SIZE && sym->as->cp_was_assumed) | |
3604 | tmp = AS_EXPLICIT; | |
3605 | switch (tmp) | |
4ee9c684 | 3606 | { |
3607 | case AS_EXPLICIT: | |
3608 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3609 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3610 | else if (sym->attr.pointer || sym->attr.allocatable) |
3611 | { | |
3612 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 3613 | { |
3614 | gfc_save_backend_locus (&loc); | |
3615 | gfc_set_backend_locus (&sym->declared_at); | |
3616 | gfc_trans_static_array_pointer (sym); | |
3617 | gfc_restore_backend_locus (&loc); | |
3618 | } | |
4ee9c684 | 3619 | else |
25dd7350 | 3620 | { |
3621 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3622 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3623 | } |
4ee9c684 | 3624 | } |
7c7db7f6 | 3625 | else if (sym->attr.codimension && TREE_STATIC (sym->backend_decl)) |
3626 | { | |
3627 | gfc_init_block (&tmpblock); | |
3628 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
3629 | &tmpblock, sym); | |
3630 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3631 | NULL_TREE); | |
3632 | continue; | |
3633 | } | |
a961ca30 | 3634 | else if (gfc_option.coarray != GFC_FCOARRAY_LIB) |
4ee9c684 | 3635 | { |
da2c4122 | 3636 | gfc_save_backend_locus (&loc); |
3637 | gfc_set_backend_locus (&sym->declared_at); | |
3638 | ||
25dd7350 | 3639 | if (sym_has_alloc_comp) |
3640 | { | |
3641 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3642 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3643 | } |
f0d4969f | 3644 | else if (sym->ts.type == BT_DERIVED |
3645 | && sym->value | |
3646 | && !sym->attr.data | |
3647 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3648 | { |
3649 | gfc_start_block (&tmpblock); | |
3650 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3651 | gfc_add_init_cleanup (block, |
c5faa799 | 3652 | gfc_finish_block (&tmpblock), |
3653 | NULL_TREE); | |
3654 | } | |
25dd7350 | 3655 | |
c5faa799 | 3656 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 3657 | sym, block); |
4671339c | 3658 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3659 | } |
3660 | break; | |
3661 | ||
3662 | case AS_ASSUMED_SIZE: | |
3663 | /* Must be a dummy parameter. */ | |
452695a8 | 3664 | gcc_assert (sym->attr.dummy || sym->as->cp_was_assumed); |
4ee9c684 | 3665 | |
3666 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 3667 | if (sym->attr.dummy) |
89ac8ba1 | 3668 | gfc_trans_g77_array (sym, block); |
c5faa799 | 3669 | break; |
4ee9c684 | 3670 | |
3671 | case AS_ASSUMED_SHAPE: | |
3672 | /* Must be a dummy parameter. */ | |
22d678e8 | 3673 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 3674 | |
89ac8ba1 | 3675 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3676 | break; |
3677 | ||
f00f6dd6 | 3678 | case AS_ASSUMED_RANK: |
4ee9c684 | 3679 | case AS_DEFERRED: |
25dd7350 | 3680 | seen_trans_deferred_array = true; |
89ac8ba1 | 3681 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3682 | break; |
3683 | ||
3684 | default: | |
22d678e8 | 3685 | gcc_unreachable (); |
4ee9c684 | 3686 | } |
25dd7350 | 3687 | if (sym_has_alloc_comp && !seen_trans_deferred_array) |
89ac8ba1 | 3688 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3689 | } |
fd23cc08 | 3690 | else if ((!sym->attr.dummy || sym->ts.deferred) |
3691 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 3692 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 3693 | continue; |
617125a6 | 3694 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 3695 | && (sym->attr.allocatable |
3696 | || (sym->ts.type == BT_CLASS | |
3697 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 3698 | { |
908e9973 | 3699 | if (!sym->attr.save) |
3700 | { | |
d0d776fb | 3701 | tree descriptor = NULL_TREE; |
3702 | ||
908e9973 | 3703 | /* Nullify and automatic deallocation of allocatable |
3704 | scalars. */ | |
908e9973 | 3705 | e = gfc_lval_expr_from_sym (sym); |
3706 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 3707 | gfc_add_data_component (e); |
908e9973 | 3708 | |
3709 | gfc_init_se (&se, NULL); | |
fd23cc08 | 3710 | if (sym->ts.type != BT_CLASS |
3711 | || sym->ts.u.derived->attr.dimension | |
3712 | || sym->ts.u.derived->attr.codimension) | |
3713 | { | |
3714 | se.want_pointer = 1; | |
3715 | gfc_conv_expr (&se, e); | |
3716 | } | |
3717 | else if (sym->ts.type == BT_CLASS | |
3718 | && !CLASS_DATA (sym)->attr.dimension | |
3719 | && !CLASS_DATA (sym)->attr.codimension) | |
3720 | { | |
3721 | se.want_pointer = 1; | |
3722 | gfc_conv_expr (&se, e); | |
3723 | } | |
3724 | else | |
3725 | { | |
3726 | gfc_conv_expr (&se, e); | |
d0d776fb | 3727 | descriptor = se.expr; |
fd23cc08 | 3728 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
3729 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
3730 | } | |
908e9973 | 3731 | gfc_free_expr (e); |
3732 | ||
da2c4122 | 3733 | gfc_save_backend_locus (&loc); |
3734 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 3735 | gfc_start_block (&init); |
617125a6 | 3736 | |
3737 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3738 | { | |
3739 | /* Nullify when entering the scope. */ | |
3740 | gfc_add_modify (&init, se.expr, | |
3741 | fold_convert (TREE_TYPE (se.expr), | |
3742 | null_pointer_node)); | |
3743 | } | |
3744 | ||
3745 | if ((sym->attr.dummy ||sym->attr.result) | |
3746 | && sym->ts.type == BT_CHARACTER | |
3747 | && sym->ts.deferred) | |
3748 | { | |
3749 | /* Character length passed by reference. */ | |
3750 | tmp = sym->ts.u.cl->passed_length; | |
3751 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3752 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3753 | ||
3754 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3755 | /* Zero the string length when entering the scope. */ | |
3756 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
3757 | build_int_cst (gfc_charlen_type_node, 0)); | |
3758 | else | |
3759 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3760 | ||
da2c4122 | 3761 | gfc_restore_backend_locus (&loc); |
3762 | ||
617125a6 | 3763 | /* Pass the final character length back. */ |
3764 | if (sym->attr.intent != INTENT_IN) | |
3765 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3766 | gfc_charlen_type_node, tmp, | |
3767 | sym->ts.u.cl->backend_decl); | |
3768 | else | |
3769 | tmp = NULL_TREE; | |
3770 | } | |
da2c4122 | 3771 | else |
3772 | gfc_restore_backend_locus (&loc); | |
908e9973 | 3773 | |
3774 | /* Deallocate when leaving the scope. Nullifying is not | |
3775 | needed. */ | |
617125a6 | 3776 | if (!sym->attr.result && !sym->attr.dummy) |
d0d776fb | 3777 | { |
3778 | if (sym->ts.type == BT_CLASS | |
3779 | && CLASS_DATA (sym)->attr.codimension) | |
3780 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
3781 | NULL_TREE, NULL_TREE, | |
3782 | NULL_TREE, true, NULL, | |
3783 | true); | |
3784 | else | |
3785 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL, | |
3786 | true, NULL, | |
3787 | sym->ts); | |
3788 | } | |
afc44c79 | 3789 | if (sym->ts.type == BT_CLASS) |
3790 | { | |
3791 | /* Initialize _vptr to declared type. */ | |
3792 | gfc_symbol *vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
3793 | tree rhs; | |
da2c4122 | 3794 | |
3795 | gfc_save_backend_locus (&loc); | |
3796 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 3797 | e = gfc_lval_expr_from_sym (sym); |
3798 | gfc_add_vptr_component (e); | |
3799 | gfc_init_se (&se, NULL); | |
3800 | se.want_pointer = 1; | |
3801 | gfc_conv_expr (&se, e); | |
3802 | gfc_free_expr (e); | |
3803 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
3804 | gfc_get_symbol_decl (vtab)); | |
3805 | gfc_add_modify (&init, se.expr, rhs); | |
da2c4122 | 3806 | gfc_restore_backend_locus (&loc); |
afc44c79 | 3807 | } |
3808 | ||
89ac8ba1 | 3809 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 3810 | } |
0a96a7cc | 3811 | } |
617125a6 | 3812 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
3813 | { | |
3814 | tree tmp = NULL; | |
3815 | stmtblock_t init; | |
3816 | ||
3817 | /* If we get to here, all that should be left are pointers. */ | |
3818 | gcc_assert (sym->attr.pointer); | |
3819 | ||
3820 | if (sym->attr.dummy) | |
3821 | { | |
3822 | gfc_start_block (&init); | |
3823 | ||
3824 | /* Character length passed by reference. */ | |
3825 | tmp = sym->ts.u.cl->passed_length; | |
3826 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3827 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3828 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3829 | /* Pass the final character length back. */ | |
3830 | if (sym->attr.intent != INTENT_IN) | |
3831 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3832 | gfc_charlen_type_node, tmp, | |
3833 | sym->ts.u.cl->backend_decl); | |
3834 | else | |
3835 | tmp = NULL_TREE; | |
3836 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3837 | } | |
3838 | } | |
3e715c81 | 3839 | else if (sym->ts.deferred) |
3840 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
fabc1fc9 | 3841 | else if (sym_has_alloc_comp) |
89ac8ba1 | 3842 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3843 | else if (sym->ts.type == BT_CHARACTER) |
3844 | { | |
4671339c | 3845 | gfc_save_backend_locus (&loc); |
4ee9c684 | 3846 | gfc_set_backend_locus (&sym->declared_at); |
3847 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3848 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 3849 | else |
89ac8ba1 | 3850 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 3851 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3852 | } |
c8f1568f | 3853 | else if (sym->attr.assign) |
3854 | { | |
4671339c | 3855 | gfc_save_backend_locus (&loc); |
c8f1568f | 3856 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 3857 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 3858 | gfc_restore_backend_locus (&loc); |
c8f1568f | 3859 | } |
f0d4969f | 3860 | else if (sym->ts.type == BT_DERIVED |
3861 | && sym->value | |
3862 | && !sym->attr.data | |
3863 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3864 | { |
3865 | gfc_start_block (&tmpblock); | |
3866 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3867 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 3868 | NULL_TREE); |
3869 | } | |
4ee9c684 | 3870 | else |
22d678e8 | 3871 | gcc_unreachable (); |
4ee9c684 | 3872 | } |
3873 | ||
c5faa799 | 3874 | gfc_init_block (&tmpblock); |
d4163395 | 3875 | |
3876 | for (f = proc_sym->formal; f; f = f->next) | |
1e853e89 | 3877 | { |
3878 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
3879 | { | |
eeebe20b | 3880 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
3881 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 3882 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 3883 | } |
1e853e89 | 3884 | } |
d4163395 | 3885 | |
3886 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
3887 | && current_fake_result_decl != NULL) | |
3888 | { | |
eeebe20b | 3889 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
3890 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 3891 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 3892 | } |
3893 | ||
89ac8ba1 | 3894 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 3895 | } |
3896 | ||
df4d540f | 3897 | static GTY ((param_is (struct module_htab_entry))) htab_t module_htab; |
3898 | ||
3899 | /* Hash and equality functions for module_htab. */ | |
3900 | ||
3901 | static hashval_t | |
3902 | module_htab_do_hash (const void *x) | |
3903 | { | |
3904 | return htab_hash_string (((const struct module_htab_entry *)x)->name); | |
3905 | } | |
3906 | ||
3907 | static int | |
3908 | module_htab_eq (const void *x1, const void *x2) | |
3909 | { | |
3910 | return strcmp ((((const struct module_htab_entry *)x1)->name), | |
3911 | (const char *)x2) == 0; | |
3912 | } | |
3913 | ||
3914 | /* Hash and equality functions for module_htab's decls. */ | |
3915 | ||
3916 | static hashval_t | |
3917 | module_htab_decls_hash (const void *x) | |
3918 | { | |
3919 | const_tree t = (const_tree) x; | |
3920 | const_tree n = DECL_NAME (t); | |
3921 | if (n == NULL_TREE) | |
3922 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 3923 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 3924 | } |
3925 | ||
3926 | static int | |
3927 | module_htab_decls_eq (const void *x1, const void *x2) | |
3928 | { | |
3929 | const_tree t1 = (const_tree) x1; | |
3930 | const_tree n1 = DECL_NAME (t1); | |
3931 | if (n1 == NULL_TREE) | |
3932 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
3933 | return strcmp (IDENTIFIER_POINTER (n1), (const char *) x2) == 0; | |
3934 | } | |
3935 | ||
3936 | struct module_htab_entry * | |
3937 | gfc_find_module (const char *name) | |
3938 | { | |
3939 | void **slot; | |
3940 | ||
3941 | if (! module_htab) | |
3942 | module_htab = htab_create_ggc (10, module_htab_do_hash, | |
3943 | module_htab_eq, NULL); | |
3944 | ||
3945 | slot = htab_find_slot_with_hash (module_htab, name, | |
3946 | htab_hash_string (name), INSERT); | |
3947 | if (*slot == NULL) | |
3948 | { | |
ba72912a | 3949 | struct module_htab_entry *entry = ggc_alloc_cleared_module_htab_entry (); |
df4d540f | 3950 | |
3951 | entry->name = gfc_get_string (name); | |
3952 | entry->decls = htab_create_ggc (10, module_htab_decls_hash, | |
3953 | module_htab_decls_eq, NULL); | |
3954 | *slot = (void *) entry; | |
3955 | } | |
3956 | return (struct module_htab_entry *) *slot; | |
3957 | } | |
3958 | ||
3959 | void | |
3960 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
3961 | { | |
3962 | void **slot; | |
3963 | const char *name; | |
3964 | ||
3965 | if (DECL_NAME (decl)) | |
3966 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
3967 | else | |
3968 | { | |
3969 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
3970 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
3971 | } | |
3972 | slot = htab_find_slot_with_hash (entry->decls, name, | |
3973 | htab_hash_string (name), INSERT); | |
3974 | if (*slot == NULL) | |
3975 | *slot = (void *) decl; | |
3976 | } | |
3977 | ||
3978 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 3979 | |
3980 | /* Output an initialized decl for a module variable. */ | |
3981 | ||
3982 | static void | |
3983 | gfc_create_module_variable (gfc_symbol * sym) | |
3984 | { | |
3985 | tree decl; | |
4ee9c684 | 3986 | |
d77f260f | 3987 | /* Module functions with alternate entries are dealt with later and |
3988 | would get caught by the next condition. */ | |
3989 | if (sym->attr.entry) | |
3990 | return; | |
3991 | ||
c5d33754 | 3992 | /* Make sure we convert the types of the derived types from iso_c_binding |
3993 | into (void *). */ | |
3994 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
3995 | && sym->ts.type == BT_DERIVED) | |
3996 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
3997 | ||
df4d540f | 3998 | if (sym->attr.flavor == FL_DERIVED |
3999 | && sym->backend_decl | |
4000 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4001 | { | |
4002 | decl = sym->backend_decl; | |
4003 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4004 | |
4005 | /* -fwhole-file mixes up the contexts so these asserts are unnecessary. */ | |
4006 | if (!(gfc_option.flag_whole_file && sym->attr.use_assoc)) | |
4007 | { | |
4008 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4009 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4010 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4011 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4012 | == sym->ns->proc_name->backend_decl); | |
4013 | } | |
df4d540f | 4014 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4015 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4016 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4017 | } | |
4018 | ||
cf269acc | 4019 | /* Only output variables, procedure pointers and array valued, |
4020 | or derived type, parameters. */ | |
4ee9c684 | 4021 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4022 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4023 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4024 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4025 | return; |
4026 | ||
df4d540f | 4027 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4028 | { | |
4029 | decl = sym->backend_decl; | |
16a40513 | 4030 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4031 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4032 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4033 | gfc_module_add_decl (cur_module, decl); | |
4034 | } | |
4035 | ||
d43a7f7f | 4036 | /* Don't generate variables from other modules. Variables from |
4037 | COMMONs will already have been generated. */ | |
4038 | if (sym->attr.use_assoc || sym->attr.in_common) | |
4ee9c684 | 4039 | return; |
4040 | ||
2b685f8e | 4041 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4042 | if (sym->backend_decl |
df4d540f | 4043 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4044 | return; | |
2b685f8e | 4045 | |
23d075f4 | 4046 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
4ee9c684 | 4047 | internal_error ("backend decl for module variable %s already exists", |
4048 | sym->name); | |
4049 | ||
4050 | /* We always want module variables to be created. */ | |
4051 | sym->attr.referenced = 1; | |
4052 | /* Create the decl. */ | |
4053 | decl = gfc_get_symbol_decl (sym); | |
4054 | ||
4ee9c684 | 4055 | /* Create the variable. */ |
4056 | pushdecl (decl); | |
df4d540f | 4057 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4058 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4059 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4060 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4061 | |
4062 | /* Also add length of strings. */ | |
4063 | if (sym->ts.type == BT_CHARACTER) | |
4064 | { | |
4065 | tree length; | |
4066 | ||
eeebe20b | 4067 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4068 | gcc_assert (length || sym->attr.proc_pointer); |
4069 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4070 | { |
4071 | pushdecl (length); | |
b2c4af5e | 4072 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4073 | } |
4074 | } | |
a961ca30 | 4075 | |
4076 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4077 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4078 | has_coarray_vars = true; | |
4ee9c684 | 4079 | } |
4080 | ||
51d9479b | 4081 | /* Emit debug information for USE statements. */ |
df4d540f | 4082 | |
4083 | static void | |
4084 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4085 | { | |
4086 | gfc_use_list *use_stmt; | |
4087 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4088 | { | |
4089 | struct module_htab_entry *entry | |
4090 | = gfc_find_module (use_stmt->module_name); | |
4091 | gfc_use_rename *rent; | |
4092 | ||
4093 | if (entry->namespace_decl == NULL) | |
4094 | { | |
4095 | entry->namespace_decl | |
e60a6f7b | 4096 | = build_decl (input_location, |
4097 | NAMESPACE_DECL, | |
df4d540f | 4098 | get_identifier (use_stmt->module_name), |
4099 | void_type_node); | |
4100 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4101 | } | |
51d9479b | 4102 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4103 | if (!use_stmt->only_flag) |
4104 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4105 | NULL_TREE, | |
4106 | ns->proc_name->backend_decl, | |
4107 | false); | |
4108 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4109 | { | |
4110 | tree decl, local_name; | |
4111 | void **slot; | |
4112 | ||
4113 | if (rent->op != INTRINSIC_NONE) | |
4114 | continue; | |
4115 | ||
4116 | slot = htab_find_slot_with_hash (entry->decls, rent->use_name, | |
4117 | htab_hash_string (rent->use_name), | |
4118 | INSERT); | |
4119 | if (*slot == NULL) | |
4120 | { | |
4121 | gfc_symtree *st; | |
4122 | ||
4123 | st = gfc_find_symtree (ns->sym_root, | |
4124 | rent->local_name[0] | |
4125 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4126 | |
4127 | /* The following can happen if a derived type is renamed. */ | |
4128 | if (!st) | |
4129 | { | |
4130 | char *name; | |
4131 | name = xstrdup (rent->local_name[0] | |
4132 | ? rent->local_name : rent->use_name); | |
4133 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4134 | st = gfc_find_symtree (ns->sym_root, name); | |
4135 | free (name); | |
4136 | gcc_assert (st); | |
4137 | } | |
857c96ba | 4138 | |
4139 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4140 | local symbol (see PR41062). */ | |
4141 | if (!st->n.sym->attr.use_assoc) | |
4142 | continue; | |
4143 | ||
51d9479b | 4144 | if (st->n.sym->backend_decl |
4145 | && DECL_P (st->n.sym->backend_decl) | |
4146 | && st->n.sym->module | |
4147 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4148 | { |
51d9479b | 4149 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4150 | || (TREE_CODE (st->n.sym->backend_decl) | |
4151 | != VAR_DECL)); | |
df4d540f | 4152 | decl = copy_node (st->n.sym->backend_decl); |
4153 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4154 | DECL_EXTERNAL (decl) = 1; | |
4155 | DECL_IGNORED_P (decl) = 0; | |
4156 | DECL_INITIAL (decl) = NULL_TREE; | |
4157 | } | |
4158 | else | |
4159 | { | |
4160 | *slot = error_mark_node; | |
4161 | htab_clear_slot (entry->decls, slot); | |
4162 | continue; | |
4163 | } | |
4164 | *slot = decl; | |
4165 | } | |
4166 | decl = (tree) *slot; | |
4167 | if (rent->local_name[0]) | |
4168 | local_name = get_identifier (rent->local_name); | |
4169 | else | |
4170 | local_name = NULL_TREE; | |
51d9479b | 4171 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4172 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4173 | ns->proc_name->backend_decl, | |
4174 | !use_stmt->only_flag); | |
4175 | } | |
4176 | } | |
4ee9c684 | 4177 | } |
4178 | ||
51d9479b | 4179 | |
2eb674c9 | 4180 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4181 | will handle. */ | |
4182 | ||
4183 | static bool | |
4184 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4185 | bool pointer) | |
4186 | { | |
4187 | gfc_constructor *c; | |
4188 | gfc_component *cm; | |
4189 | ||
4190 | if (pointer) | |
4191 | return true; | |
4192 | else if (array) | |
4193 | { | |
4194 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4195 | return true; | |
4196 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4197 | return check_constant_initializer (expr, ts, false, false); | |
4198 | else if (expr->expr_type != EXPR_ARRAY) | |
4199 | return false; | |
126387b5 | 4200 | for (c = gfc_constructor_first (expr->value.constructor); |
4201 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4202 | { |
4203 | if (c->iterator) | |
4204 | return false; | |
4205 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4206 | { | |
4207 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4208 | return false; | |
4209 | } | |
4210 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4211 | return false; | |
4212 | } | |
4213 | return true; | |
4214 | } | |
4215 | else switch (ts->type) | |
4216 | { | |
4217 | case BT_DERIVED: | |
4218 | if (expr->expr_type != EXPR_STRUCTURE) | |
4219 | return false; | |
eeebe20b | 4220 | cm = expr->ts.u.derived->components; |
126387b5 | 4221 | for (c = gfc_constructor_first (expr->value.constructor); |
4222 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4223 | { |
4224 | if (!c->expr || cm->attr.allocatable) | |
4225 | continue; | |
4226 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4227 | cm->attr.dimension, | |
4228 | cm->attr.pointer)) | |
4229 | return false; | |
4230 | } | |
4231 | return true; | |
4232 | default: | |
4233 | return expr->expr_type == EXPR_CONSTANT; | |
4234 | } | |
4235 | } | |
4236 | ||
4237 | /* Emit debug info for parameters and unreferenced variables with | |
4238 | initializers. */ | |
4239 | ||
4240 | static void | |
4241 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4242 | { | |
4243 | tree decl; | |
4244 | ||
4245 | if (sym->attr.flavor != FL_PARAMETER | |
4246 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4247 | return; | |
4248 | ||
4249 | if (sym->backend_decl != NULL | |
4250 | || sym->value == NULL | |
4251 | || sym->attr.use_assoc | |
4252 | || sym->attr.dummy | |
4253 | || sym->attr.result | |
4254 | || sym->attr.function | |
4255 | || sym->attr.intrinsic | |
4256 | || sym->attr.pointer | |
4257 | || sym->attr.allocatable | |
4258 | || sym->attr.cray_pointee | |
4259 | || sym->attr.threadprivate | |
4260 | || sym->attr.is_bind_c | |
4261 | || sym->attr.subref_array_pointer | |
4262 | || sym->attr.assign) | |
4263 | return; | |
4264 | ||
4265 | if (sym->ts.type == BT_CHARACTER) | |
4266 | { | |
eeebe20b | 4267 | gfc_conv_const_charlen (sym->ts.u.cl); |
4268 | if (sym->ts.u.cl->backend_decl == NULL | |
4269 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4270 | return; |
4271 | } | |
eeebe20b | 4272 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4273 | return; |
4274 | ||
4275 | if (sym->as) | |
4276 | { | |
4277 | int n; | |
4278 | ||
4279 | if (sym->as->type != AS_EXPLICIT) | |
4280 | return; | |
4281 | for (n = 0; n < sym->as->rank; n++) | |
4282 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4283 | || sym->as->upper[n] == NULL | |
4284 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4285 | return; | |
4286 | } | |
4287 | ||
4288 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4289 | sym->attr.dimension, false)) | |
4290 | return; | |
4291 | ||
a961ca30 | 4292 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
4293 | return; | |
4294 | ||
2eb674c9 | 4295 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4296 | decl = build_decl (input_location, |
4297 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4298 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4299 | if (sym->attr.flavor == FL_PARAMETER) | |
4300 | TREE_READONLY (decl) = 1; | |
4301 | gfc_set_decl_location (decl, &sym->declared_at); | |
4302 | if (sym->attr.dimension) | |
4303 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4304 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4305 | TREE_STATIC (decl) = 1; | |
4306 | TREE_USED (decl) = 1; | |
4307 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4308 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4309 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4310 | TREE_TYPE (decl), | |
4311 | sym->attr.dimension, | |
4312 | false, false); | |
2eb674c9 | 4313 | debug_hooks->global_decl (decl); |
4314 | } | |
4315 | ||
a961ca30 | 4316 | |
4317 | static void | |
4318 | generate_coarray_sym_init (gfc_symbol *sym) | |
4319 | { | |
4320 | tree tmp, size, decl, token; | |
4321 | ||
4322 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
4323 | || sym->attr.use_assoc || !sym->attr.referenced) | |
4324 | return; | |
4325 | ||
4326 | decl = sym->backend_decl; | |
4327 | TREE_USED(decl) = 1; | |
4328 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4329 | ||
4330 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 | |
4331 | to make sure the variable is not optimized away. */ | |
4332 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4333 | ||
4334 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
4335 | ||
ee4e7a5e | 4336 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
4337 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, | |
4338 | fold_convert (size_type_node, size), | |
4339 | build_int_cst (size_type_node, 1)); | |
4340 | ||
a961ca30 | 4341 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4342 | { | |
4343 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4344 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4345 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4346 | } |
4347 | ||
4348 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4349 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4350 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
4351 | ||
4352 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, | |
7b186db6 | 4353 | build_int_cst (integer_type_node, |
4f5fe475 | 4354 | GFC_CAF_COARRAY_STATIC), /* type. */ |
a961ca30 | 4355 | token, null_pointer_node, /* token, stat. */ |
4356 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4357 | build_int_cst (integer_type_node, 0)); | |
4358 | ||
4359 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); | |
4360 | ||
4361 | ||
4362 | /* Handle "static" initializer. */ | |
4363 | if (sym->value) | |
4364 | { | |
4365 | sym->attr.pointer = 1; | |
4366 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4367 | true, false); | |
4368 | sym->attr.pointer = 0; | |
4369 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4370 | } | |
4371 | } | |
4372 | ||
4373 | ||
4374 | /* Generate constructor function to initialize static, nonallocatable | |
4375 | coarrays. */ | |
4376 | ||
4377 | static void | |
4378 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4379 | { | |
4380 | tree fndecl, tmp, decl, save_fn_decl; | |
4381 | ||
4382 | save_fn_decl = current_function_decl; | |
4383 | push_function_context (); | |
4384 | ||
4385 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4386 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4387 | create_tmp_var_name ("_caf_init"), tmp); | |
4388 | ||
4389 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4390 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4391 | ||
4392 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4393 | DECL_ARTIFICIAL (decl) = 1; | |
4394 | DECL_IGNORED_P (decl) = 1; | |
4395 | DECL_CONTEXT (decl) = fndecl; | |
4396 | DECL_RESULT (fndecl) = decl; | |
4397 | ||
4398 | pushdecl (fndecl); | |
4399 | current_function_decl = fndecl; | |
4400 | announce_function (fndecl); | |
4401 | ||
4402 | rest_of_decl_compilation (fndecl, 0, 0); | |
4403 | make_decl_rtl (fndecl); | |
00cf115c | 4404 | allocate_struct_function (fndecl, false); |
a961ca30 | 4405 | |
cde2be84 | 4406 | pushlevel (); |
a961ca30 | 4407 | gfc_init_block (&caf_init_block); |
4408 | ||
4409 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
4410 | ||
4411 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
4412 | decl = getdecls (); | |
4413 | ||
cde2be84 | 4414 | poplevel (1, 1); |
a961ca30 | 4415 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
4416 | ||
4417 | DECL_SAVED_TREE (fndecl) | |
4418 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
4419 | DECL_INITIAL (fndecl)); | |
4420 | dump_function (TDI_original, fndecl); | |
4421 | ||
4422 | cfun->function_end_locus = input_location; | |
4423 | set_cfun (NULL); | |
4424 | ||
4425 | if (decl_function_context (fndecl)) | |
4426 | (void) cgraph_create_node (fndecl); | |
4427 | else | |
4428 | cgraph_finalize_function (fndecl, true); | |
4429 | ||
4430 | pop_function_context (); | |
4431 | current_function_decl = save_fn_decl; | |
4432 | } | |
4433 | ||
4434 | ||
51d9479b | 4435 | /* Generate all the required code for module variables. */ |
4436 | ||
4437 | void | |
4438 | gfc_generate_module_vars (gfc_namespace * ns) | |
4439 | { | |
4440 | module_namespace = ns; | |
4441 | cur_module = gfc_find_module (ns->proc_name->name); | |
4442 | ||
4443 | /* Check if the frontend left the namespace in a reasonable state. */ | |
4444 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
4445 | ||
4446 | /* Generate COMMON blocks. */ | |
4447 | gfc_trans_common (ns); | |
4448 | ||
a961ca30 | 4449 | has_coarray_vars = false; |
4450 | ||
51d9479b | 4451 | /* Create decls for all the module variables. */ |
4452 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
4453 | ||
a961ca30 | 4454 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
4455 | generate_coarray_init (ns); | |
4456 | ||
51d9479b | 4457 | cur_module = NULL; |
4458 | ||
4459 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 4460 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 4461 | } |
4462 | ||
4463 | ||
4ee9c684 | 4464 | static void |
4465 | gfc_generate_contained_functions (gfc_namespace * parent) | |
4466 | { | |
4467 | gfc_namespace *ns; | |
4468 | ||
4469 | /* We create all the prototypes before generating any code. */ | |
4470 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4471 | { | |
4472 | /* Skip namespaces from used modules. */ | |
4473 | if (ns->parent != parent) | |
4474 | continue; | |
4475 | ||
d896f9b3 | 4476 | gfc_create_function_decl (ns, false); |
4ee9c684 | 4477 | } |
4478 | ||
4479 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4480 | { | |
4481 | /* Skip namespaces from used modules. */ | |
4482 | if (ns->parent != parent) | |
4483 | continue; | |
4484 | ||
4485 | gfc_generate_function_code (ns); | |
4486 | } | |
4487 | } | |
4488 | ||
4489 | ||
d95efb59 | 4490 | /* Drill down through expressions for the array specification bounds and |
4491 | character length calling generate_local_decl for all those variables | |
4492 | that have not already been declared. */ | |
4493 | ||
4494 | static void | |
4495 | generate_local_decl (gfc_symbol *); | |
4496 | ||
1acb400a | 4497 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 4498 | |
1acb400a | 4499 | static bool |
4500 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
4501 | int *f ATTRIBUTE_UNUSED) | |
4502 | { | |
4503 | if (e->expr_type != EXPR_VARIABLE | |
4504 | || sym == e->symtree->n.sym | |
d95efb59 | 4505 | || e->symtree->n.sym->mark |
4506 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 4507 | return false; |
d95efb59 | 4508 | |
1acb400a | 4509 | generate_local_decl (e->symtree->n.sym); |
4510 | return false; | |
4511 | } | |
d95efb59 | 4512 | |
1acb400a | 4513 | static void |
4514 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
4515 | { | |
4516 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 4517 | } |
4518 | ||
4519 | ||
f6d0e37a | 4520 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 4521 | |
4522 | static void | |
4523 | generate_dependency_declarations (gfc_symbol *sym) | |
4524 | { | |
4525 | int i; | |
4526 | ||
4527 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 4528 | && sym->ts.u.cl |
4529 | && sym->ts.u.cl->length | |
4530 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
4531 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 4532 | |
4533 | if (sym->as && sym->as->rank) | |
4534 | { | |
4535 | for (i = 0; i < sym->as->rank; i++) | |
4536 | { | |
4537 | generate_expr_decls (sym, sym->as->lower[i]); | |
4538 | generate_expr_decls (sym, sym->as->upper[i]); | |
4539 | } | |
4540 | } | |
4541 | } | |
4542 | ||
4543 | ||
4ee9c684 | 4544 | /* Generate decls for all local variables. We do this to ensure correct |
4545 | handling of expressions which only appear in the specification of | |
4546 | other functions. */ | |
4547 | ||
4548 | static void | |
4549 | generate_local_decl (gfc_symbol * sym) | |
4550 | { | |
4551 | if (sym->attr.flavor == FL_VARIABLE) | |
4552 | { | |
a961ca30 | 4553 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
4554 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4555 | has_coarray_vars = true; | |
4556 | ||
d95efb59 | 4557 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 4558 | generate_dependency_declarations (sym); |
d95efb59 | 4559 | |
4ee9c684 | 4560 | if (sym->attr.referenced) |
8714fc76 | 4561 | gfc_get_symbol_decl (sym); |
4acad347 | 4562 | |
4563 | /* Warnings for unused dummy arguments. */ | |
4564 | else if (sym->attr.dummy) | |
7c0ca46e | 4565 | { |
4acad347 | 4566 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
4567 | if (gfc_option.warn_unused_dummy_argument | |
4568 | && sym->attr.intent == INTENT_OUT) | |
4569 | { | |
4570 | if (sym->ts.type != BT_DERIVED) | |
4571 | gfc_warning ("Dummy argument '%s' at %L was declared " | |
4572 | "INTENT(OUT) but was not set", sym->name, | |
4573 | &sym->declared_at); | |
4574 | else if (!gfc_has_default_initializer (sym->ts.u.derived)) | |
4575 | gfc_warning ("Derived-type dummy argument '%s' at %L was " | |
4576 | "declared INTENT(OUT) but was not set and " | |
4577 | "does not have a default initializer", | |
4578 | sym->name, &sym->declared_at); | |
90a4a5a6 | 4579 | if (sym->backend_decl != NULL_TREE) |
4580 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 4581 | } |
4582 | else if (gfc_option.warn_unused_dummy_argument) | |
90a4a5a6 | 4583 | { |
4584 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
4acad347 | 4585 | &sym->declared_at); |
90a4a5a6 | 4586 | if (sym->backend_decl != NULL_TREE) |
4587 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4588 | } | |
7c0ca46e | 4589 | } |
4acad347 | 4590 | |
f888a3fb | 4591 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 4592 | block or a namelist. */ |
36609028 | 4593 | else if (warn_unused_variable |
1dbfac29 | 4594 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 4595 | { |
1dbfac29 | 4596 | if (sym->attr.use_only) |
4597 | { | |
4598 | gfc_warning ("Unused module variable '%s' which has been " | |
4599 | "explicitly imported at %L", sym->name, | |
4600 | &sym->declared_at); | |
4601 | if (sym->backend_decl != NULL_TREE) | |
4602 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4603 | } | |
4604 | else if (!sym->attr.use_assoc) | |
4605 | { | |
4606 | gfc_warning ("Unused variable '%s' declared at %L", | |
4607 | sym->name, &sym->declared_at); | |
4608 | if (sym->backend_decl != NULL_TREE) | |
4609 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4610 | } | |
90a4a5a6 | 4611 | } |
8714fc76 | 4612 | |
d4163395 | 4613 | /* For variable length CHARACTER parameters, the PARM_DECL already |
4614 | references the length variable, so force gfc_get_symbol_decl | |
4615 | even when not referenced. If optimize > 0, it will be optimized | |
4616 | away anyway. But do this only after emitting -Wunused-parameter | |
4617 | warning if requested. */ | |
8714fc76 | 4618 | if (sym->attr.dummy && !sym->attr.referenced |
4619 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 4620 | && sym->ts.u.cl->backend_decl != NULL |
4621 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 4622 | { |
4623 | sym->attr.referenced = 1; | |
4624 | gfc_get_symbol_decl (sym); | |
4625 | } | |
76776e6d | 4626 | |
d0163401 | 4627 | /* INTENT(out) dummy arguments and result variables with allocatable |
4628 | components are reset by default and need to be set referenced to | |
4629 | generate the code for nullification and automatic lengths. */ | |
4630 | if (!sym->attr.referenced | |
8714fc76 | 4631 | && sym->ts.type == BT_DERIVED |
eeebe20b | 4632 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 4633 | && !sym->attr.pointer |
d0163401 | 4634 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
4635 | || | |
4636 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 4637 | { |
4638 | sym->attr.referenced = 1; | |
4639 | gfc_get_symbol_decl (sym); | |
4640 | } | |
4641 | ||
e72f979a | 4642 | /* Check for dependencies in the array specification and string |
4643 | length, adding the necessary declarations to the function. We | |
4644 | mark the symbol now, as well as in traverse_ns, to prevent | |
4645 | getting stuck in a circular dependency. */ | |
4646 | sym->mark = 1; | |
4ee9c684 | 4647 | } |
5dd246c1 | 4648 | else if (sym->attr.flavor == FL_PARAMETER) |
4649 | { | |
6ecfe89d | 4650 | if (warn_unused_parameter |
f326eb81 | 4651 | && !sym->attr.referenced) |
4652 | { | |
4653 | if (!sym->attr.use_assoc) | |
4654 | gfc_warning ("Unused parameter '%s' declared at %L", sym->name, | |
4655 | &sym->declared_at); | |
4656 | else if (sym->attr.use_only) | |
4657 | gfc_warning ("Unused parameter '%s' which has been explicitly " | |
4658 | "imported at %L", sym->name, &sym->declared_at); | |
4659 | } | |
5dd246c1 | 4660 | } |
fa7b6574 | 4661 | else if (sym->attr.flavor == FL_PROCEDURE) |
4662 | { | |
4663 | /* TODO: move to the appropriate place in resolve.c. */ | |
4664 | if (warn_return_type | |
4665 | && sym->attr.function | |
4666 | && sym->result | |
4667 | && sym != sym->result | |
4668 | && !sym->result->attr.referenced | |
4669 | && !sym->attr.use_assoc | |
4670 | && sym->attr.if_source != IFSRC_IFBODY) | |
4671 | { | |
4672 | gfc_warning ("Return value '%s' of function '%s' declared at " | |
4673 | "%L not set", sym->result->name, sym->name, | |
4674 | &sym->result->declared_at); | |
4675 | ||
4676 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 4677 | sym->result->mark = 1; |
fa7b6574 | 4678 | } |
4679 | } | |
c5d33754 | 4680 | |
19ba2ad8 | 4681 | if (sym->attr.dummy == 1) |
4682 | { | |
4683 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
4684 | procedures if they are passed by value. The tree type for them will | |
4685 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
4686 | what C would do with characters passed by-value. The value attribute | |
4687 | implies the dummy is a scalar. */ | |
4688 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
4689 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
4690 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 4691 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 4692 | |
4693 | /* Unused procedure passed as dummy argument. */ | |
4694 | if (sym->attr.flavor == FL_PROCEDURE) | |
4695 | { | |
4696 | if (!sym->attr.referenced) | |
4697 | { | |
4698 | if (gfc_option.warn_unused_dummy_argument) | |
4699 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
4700 | &sym->declared_at); | |
4701 | } | |
4702 | ||
4703 | /* Silence bogus "unused parameter" warnings from the | |
4704 | middle end. */ | |
4705 | if (sym->backend_decl != NULL_TREE) | |
4706 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
4707 | } | |
19ba2ad8 | 4708 | } |
4709 | ||
c5d33754 | 4710 | /* Make sure we convert the types of the derived types from iso_c_binding |
4711 | into (void *). */ | |
4712 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4713 | && sym->ts.type == BT_DERIVED) | |
4714 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 4715 | } |
4716 | ||
4717 | static void | |
4718 | generate_local_vars (gfc_namespace * ns) | |
4719 | { | |
4720 | gfc_traverse_ns (ns, generate_local_decl); | |
4721 | } | |
4722 | ||
4723 | ||
1b716045 | 4724 | /* Generate a switch statement to jump to the correct entry point. Also |
4725 | creates the label decls for the entry points. */ | |
4ee9c684 | 4726 | |
1b716045 | 4727 | static tree |
4728 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 4729 | { |
1b716045 | 4730 | stmtblock_t block; |
4731 | tree label; | |
4732 | tree tmp; | |
4733 | tree val; | |
4ee9c684 | 4734 | |
1b716045 | 4735 | gfc_init_block (&block); |
4736 | for (; el; el = el->next) | |
4737 | { | |
4738 | /* Add the case label. */ | |
b797d6d3 | 4739 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 4740 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 4741 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 4742 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 4743 | |
1b716045 | 4744 | /* And jump to the actual entry point. */ |
4745 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 4746 | tmp = build1_v (GOTO_EXPR, label); |
4747 | gfc_add_expr_to_block (&block, tmp); | |
4748 | ||
4749 | /* Save the label decl. */ | |
4750 | el->label = label; | |
4751 | } | |
4752 | tmp = gfc_finish_block (&block); | |
4753 | /* The first argument selects the entry point. */ | |
4754 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 4755 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
4756 | val, tmp, NULL_TREE); | |
1b716045 | 4757 | return tmp; |
4ee9c684 | 4758 | } |
4759 | ||
6374121b | 4760 | |
a4abf8a0 | 4761 | /* Add code to string lengths of actual arguments passed to a function against |
4762 | the expected lengths of the dummy arguments. */ | |
4763 | ||
4764 | static void | |
4765 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
4766 | { | |
4767 | gfc_formal_arglist *formal; | |
4768 | ||
4769 | for (formal = sym->formal; formal; formal = formal->next) | |
517c89e5 | 4770 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 4771 | && !formal->sym->ts.deferred) |
a4abf8a0 | 4772 | { |
4773 | enum tree_code comparison; | |
4774 | tree cond; | |
4775 | tree argname; | |
4776 | gfc_symbol *fsym; | |
4777 | gfc_charlen *cl; | |
4778 | const char *message; | |
4779 | ||
4780 | fsym = formal->sym; | |
eeebe20b | 4781 | cl = fsym->ts.u.cl; |
a4abf8a0 | 4782 | |
4783 | gcc_assert (cl); | |
4784 | gcc_assert (cl->passed_length != NULL_TREE); | |
4785 | gcc_assert (cl->backend_decl != NULL_TREE); | |
4786 | ||
4787 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
4788 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 4789 | that the actual string length is *at least* the expected one. |
4790 | Sequence association allows for a mismatch of the string length | |
4791 | if the actual argument is (part of) an array, but only if the | |
4792 | dummy argument is an array. (See "Sequence association" in | |
4793 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 4794 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 4795 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
4796 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 4797 | { |
4798 | comparison = NE_EXPR; | |
4799 | message = _("Actual string length does not match the declared one" | |
4800 | " for dummy argument '%s' (%ld/%ld)"); | |
4801 | } | |
be4be771 | 4802 | else if (fsym->as && fsym->as->rank != 0) |
4803 | continue; | |
a4abf8a0 | 4804 | else |
4805 | { | |
4806 | comparison = LT_EXPR; | |
4807 | message = _("Actual string length is shorter than the declared one" | |
4808 | " for dummy argument '%s' (%ld/%ld)"); | |
4809 | } | |
4810 | ||
4811 | /* Build the condition. For optional arguments, an actual length | |
4812 | of 0 is also acceptable if the associated string is NULL, which | |
4813 | means the argument was not passed. */ | |
fd779e1d | 4814 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
4815 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 4816 | if (fsym->attr.optional) |
4817 | { | |
4818 | tree not_absent; | |
4819 | tree not_0length; | |
4820 | tree absent_failed; | |
4821 | ||
fd779e1d | 4822 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4823 | boolean_type_node, | |
4824 | cl->passed_length, | |
385f3f36 | 4825 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 4826 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
4827 | fsym->attr.referenced = 1; | |
4828 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 4829 | |
fd779e1d | 4830 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4831 | boolean_type_node, not_0length, | |
4832 | not_absent); | |
a4abf8a0 | 4833 | |
fd779e1d | 4834 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4835 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 4836 | } |
4837 | ||
4838 | /* Build the runtime check. */ | |
4839 | argname = gfc_build_cstring_const (fsym->name); | |
4840 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
4841 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
4842 | message, argname, | |
4843 | fold_convert (long_integer_type_node, | |
4844 | cl->passed_length), | |
4845 | fold_convert (long_integer_type_node, | |
4846 | cl->backend_decl)); | |
4847 | } | |
4848 | } | |
4849 | ||
4850 | ||
642970a3 | 4851 | /* Generate the _gfortran_caf_this_image and _gfortran_caf_num_images |
4852 | global variables for -fcoarray=lib. They are placed into the translation | |
4853 | unit of the main program. Make sure that in one TU (the one of the main | |
4854 | program), the first call to gfc_init_coarray_decl is done with true. | |
4855 | Otherwise, expect link errors. */ | |
4856 | ||
70b5944a | 4857 | void |
642970a3 | 4858 | gfc_init_coarray_decl (bool main_tu) |
70b5944a | 4859 | { |
70b5944a | 4860 | if (gfc_option.coarray != GFC_FCOARRAY_LIB) |
4861 | return; | |
4862 | ||
4863 | if (gfort_gvar_caf_this_image || gfort_gvar_caf_num_images) | |
4864 | return; | |
4865 | ||
70b5944a | 4866 | push_cfun (cfun); |
4867 | ||
642970a3 | 4868 | gfort_gvar_caf_this_image |
4869 | = build_decl (input_location, VAR_DECL, | |
4870 | get_identifier (PREFIX("caf_this_image")), | |
4871 | integer_type_node); | |
70b5944a | 4872 | DECL_ARTIFICIAL (gfort_gvar_caf_this_image) = 1; |
4873 | TREE_USED (gfort_gvar_caf_this_image) = 1; | |
4874 | TREE_PUBLIC (gfort_gvar_caf_this_image) = 1; | |
642970a3 | 4875 | TREE_READONLY (gfort_gvar_caf_this_image) = 0; |
4876 | ||
4877 | if (main_tu) | |
4878 | TREE_STATIC (gfort_gvar_caf_this_image) = 1; | |
4879 | else | |
4880 | DECL_EXTERNAL (gfort_gvar_caf_this_image) = 1; | |
4881 | ||
4882 | pushdecl_top_level (gfort_gvar_caf_this_image); | |
70b5944a | 4883 | |
642970a3 | 4884 | gfort_gvar_caf_num_images |
4885 | = build_decl (input_location, VAR_DECL, | |
4886 | get_identifier (PREFIX("caf_num_images")), | |
4887 | integer_type_node); | |
70b5944a | 4888 | DECL_ARTIFICIAL (gfort_gvar_caf_num_images) = 1; |
4889 | TREE_USED (gfort_gvar_caf_num_images) = 1; | |
4890 | TREE_PUBLIC (gfort_gvar_caf_num_images) = 1; | |
642970a3 | 4891 | TREE_READONLY (gfort_gvar_caf_num_images) = 0; |
4892 | ||
4893 | if (main_tu) | |
4894 | TREE_STATIC (gfort_gvar_caf_num_images) = 1; | |
4895 | else | |
4896 | DECL_EXTERNAL (gfort_gvar_caf_num_images) = 1; | |
4897 | ||
4898 | pushdecl_top_level (gfort_gvar_caf_num_images); | |
70b5944a | 4899 | |
4900 | pop_cfun (); | |
70b5944a | 4901 | } |
4902 | ||
4903 | ||
7257a5d2 | 4904 | static void |
4905 | create_main_function (tree fndecl) | |
4906 | { | |
43702da6 | 4907 | tree old_context; |
7257a5d2 | 4908 | tree ftn_main; |
4909 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
4910 | stmtblock_t body; | |
4911 | ||
43702da6 | 4912 | old_context = current_function_decl; |
4913 | ||
4914 | if (old_context) | |
4915 | { | |
4916 | push_function_context (); | |
4917 | saved_parent_function_decls = saved_function_decls; | |
4918 | saved_function_decls = NULL_TREE; | |
4919 | } | |
4920 | ||
7257a5d2 | 4921 | /* main() function must be declared with global scope. */ |
4922 | gcc_assert (current_function_decl == NULL_TREE); | |
4923 | ||
4924 | /* Declare the function. */ | |
4925 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
4926 | build_pointer_type (pchar_type_node), | |
4927 | NULL_TREE); | |
0509d0ee | 4928 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 4929 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
4930 | main_identifier_node, tmp); | |
7257a5d2 | 4931 | DECL_EXTERNAL (ftn_main) = 0; |
4932 | TREE_PUBLIC (ftn_main) = 1; | |
4933 | TREE_STATIC (ftn_main) = 1; | |
4934 | DECL_ATTRIBUTES (ftn_main) | |
4935 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
4936 | ||
4937 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 4938 | result_decl = build_decl (input_location, |
4939 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 4940 | DECL_ARTIFICIAL (result_decl) = 1; |
4941 | DECL_IGNORED_P (result_decl) = 1; | |
4942 | DECL_CONTEXT (result_decl) = ftn_main; | |
4943 | DECL_RESULT (ftn_main) = result_decl; | |
4944 | ||
4945 | pushdecl (ftn_main); | |
4946 | ||
4947 | /* Get the arguments. */ | |
4948 | ||
4949 | arglist = NULL_TREE; | |
4950 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
4951 | ||
4952 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 4953 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 4954 | DECL_CONTEXT (argc) = ftn_main; |
4955 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
4956 | TREE_READONLY (argc) = 1; | |
4957 | gfc_finish_decl (argc); | |
4958 | arglist = chainon (arglist, argc); | |
4959 | ||
4960 | typelist = TREE_CHAIN (typelist); | |
4961 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 4962 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 4963 | DECL_CONTEXT (argv) = ftn_main; |
4964 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
4965 | TREE_READONLY (argv) = 1; | |
4966 | DECL_BY_REFERENCE (argv) = 1; | |
4967 | gfc_finish_decl (argv); | |
4968 | arglist = chainon (arglist, argv); | |
4969 | ||
4970 | DECL_ARGUMENTS (ftn_main) = arglist; | |
4971 | current_function_decl = ftn_main; | |
4972 | announce_function (ftn_main); | |
4973 | ||
4974 | rest_of_decl_compilation (ftn_main, 1, 0); | |
4975 | make_decl_rtl (ftn_main); | |
00cf115c | 4976 | allocate_struct_function (ftn_main, false); |
cde2be84 | 4977 | pushlevel (); |
7257a5d2 | 4978 | |
4979 | gfc_init_block (&body); | |
4980 | ||
4981 | /* Call some libgfortran initialization routines, call then MAIN__(). */ | |
4982 | ||
70b5944a | 4983 | /* Call _gfortran_caf_init (*argc, ***argv, *this_image, *num_images). */ |
4984 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
4985 | { | |
4986 | tree pint_type, pppchar_type; | |
4987 | pint_type = build_pointer_type (integer_type_node); | |
4988 | pppchar_type | |
4989 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
4990 | ||
642970a3 | 4991 | gfc_init_coarray_decl (true); |
70b5944a | 4992 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 4, |
4993 | gfc_build_addr_expr (pint_type, argc), | |
4994 | gfc_build_addr_expr (pppchar_type, argv), | |
4995 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_this_image), | |
4996 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_num_images)); | |
4997 | gfc_add_expr_to_block (&body, tmp); | |
4998 | } | |
4999 | ||
7257a5d2 | 5000 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5001 | TREE_USED (argc) = 1; |
5002 | TREE_USED (argv) = 1; | |
389dd41b | 5003 | tmp = build_call_expr_loc (input_location, |
5004 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5005 | gfc_add_expr_to_block (&body, tmp); |
5006 | ||
5007 | /* Add a call to set_options to set up the runtime library Fortran | |
5008 | language standard parameters. */ | |
5009 | { | |
5010 | tree array_type, array, var; | |
f1f41a6c | 5011 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5012 | |
5013 | /* Passing a new option to the library requires four modifications: | |
5014 | + add it to the tree_cons list below | |
5015 | + change the array size in the call to build_array_type | |
5016 | + change the first argument to the library call | |
5017 | gfor_fndecl_set_options | |
5018 | + modify the library (runtime/compile_options.c)! */ | |
5019 | ||
06f13dc1 | 5020 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5021 | build_int_cst (integer_type_node, | |
5022 | gfc_option.warn_std)); | |
5023 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5024 | build_int_cst (integer_type_node, | |
5025 | gfc_option.allow_std)); | |
5026 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5027 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5028 | /* TODO: This is the old -fdump-core option, which is unused but |
5029 | passed due to ABI compatibility; remove when bumping the | |
5030 | library ABI. */ | |
06f13dc1 | 5031 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5032 | build_int_cst (integer_type_node, | |
b2130263 | 5033 | 0)); |
06f13dc1 | 5034 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5035 | build_int_cst (integer_type_node, | |
5036 | gfc_option.flag_backtrace)); | |
5037 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5038 | build_int_cst (integer_type_node, | |
5039 | gfc_option.flag_sign_zero)); | |
5040 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5041 | build_int_cst (integer_type_node, | |
5042 | (gfc_option.rtcheck | |
5043 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5044 | /* TODO: This is the -frange-check option, which no longer affects |
5045 | library behavior; when bumping the library ABI this slot can be | |
5046 | reused for something else. As it is the last element in the | |
5047 | array, we can instead leave it out altogether. | |
06f13dc1 | 5048 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5049 | build_int_cst (integer_type_node, | |
5050 | gfc_option.flag_range_check)); | |
7f4f15dc | 5051 | */ |
7257a5d2 | 5052 | |
5053 | array_type = build_array_type (integer_type_node, | |
7f4f15dc | 5054 | build_index_type (size_int (6))); |
06f13dc1 | 5055 | array = build_constructor (array_type, v); |
7257a5d2 | 5056 | TREE_CONSTANT (array) = 1; |
5057 | TREE_STATIC (array) = 1; | |
5058 | ||
5059 | /* Create a static variable to hold the jump table. */ | |
5060 | var = gfc_create_var (array_type, "options"); | |
5061 | TREE_CONSTANT (var) = 1; | |
5062 | TREE_STATIC (var) = 1; | |
5063 | TREE_READONLY (var) = 1; | |
5064 | DECL_INITIAL (var) = array; | |
5065 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); | |
5066 | ||
389dd41b | 5067 | tmp = build_call_expr_loc (input_location, |
5068 | gfor_fndecl_set_options, 2, | |
7f4f15dc | 5069 | build_int_cst (integer_type_node, 7), var); |
7257a5d2 | 5070 | gfc_add_expr_to_block (&body, tmp); |
5071 | } | |
5072 | ||
5073 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5074 | the library will raise a FPE when needed. */ | |
5075 | if (gfc_option.fpe != 0) | |
5076 | { | |
389dd41b | 5077 | tmp = build_call_expr_loc (input_location, |
5078 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5079 | build_int_cst (integer_type_node, |
5080 | gfc_option.fpe)); | |
5081 | gfc_add_expr_to_block (&body, tmp); | |
5082 | } | |
5083 | ||
5084 | /* If this is the main program and an -fconvert option was provided, | |
5085 | add a call to set_convert. */ | |
5086 | ||
5087 | if (gfc_option.convert != GFC_CONVERT_NATIVE) | |
5088 | { | |
389dd41b | 5089 | tmp = build_call_expr_loc (input_location, |
5090 | gfor_fndecl_set_convert, 1, | |
7257a5d2 | 5091 | build_int_cst (integer_type_node, |
5092 | gfc_option.convert)); | |
5093 | gfc_add_expr_to_block (&body, tmp); | |
5094 | } | |
5095 | ||
5096 | /* If this is the main program and an -frecord-marker option was provided, | |
5097 | add a call to set_record_marker. */ | |
5098 | ||
5099 | if (gfc_option.record_marker != 0) | |
5100 | { | |
389dd41b | 5101 | tmp = build_call_expr_loc (input_location, |
5102 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5103 | build_int_cst (integer_type_node, |
5104 | gfc_option.record_marker)); | |
5105 | gfc_add_expr_to_block (&body, tmp); | |
5106 | } | |
5107 | ||
5108 | if (gfc_option.max_subrecord_length != 0) | |
5109 | { | |
389dd41b | 5110 | tmp = build_call_expr_loc (input_location, |
5111 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5112 | build_int_cst (integer_type_node, |
5113 | gfc_option.max_subrecord_length)); | |
5114 | gfc_add_expr_to_block (&body, tmp); | |
5115 | } | |
5116 | ||
5117 | /* Call MAIN__(). */ | |
389dd41b | 5118 | tmp = build_call_expr_loc (input_location, |
5119 | fndecl, 0); | |
7257a5d2 | 5120 | gfc_add_expr_to_block (&body, tmp); |
5121 | ||
43702da6 | 5122 | /* Mark MAIN__ as used. */ |
5123 | TREE_USED (fndecl) = 1; | |
5124 | ||
70b5944a | 5125 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
5126 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
5127 | { | |
5128 | /* Per F2008, 8.5.1 END of the main program implies a | |
5129 | SYNC MEMORY. */ | |
b9a16870 | 5130 | tmp = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
70b5944a | 5131 | tmp = build_call_expr_loc (input_location, tmp, 0); |
5132 | gfc_add_expr_to_block (&body, tmp); | |
5133 | ||
5134 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); | |
5135 | gfc_add_expr_to_block (&body, tmp); | |
5136 | } | |
5137 | ||
7257a5d2 | 5138 | /* "return 0". */ |
fd779e1d | 5139 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5140 | DECL_RESULT (ftn_main), | |
5141 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5142 | tmp = build1_v (RETURN_EXPR, tmp); |
5143 | gfc_add_expr_to_block (&body, tmp); | |
5144 | ||
5145 | ||
5146 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5147 | decl = getdecls (); | |
5148 | ||
5149 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5150 | poplevel (1, 1); |
7257a5d2 | 5151 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5152 | ||
5153 | DECL_SAVED_TREE (ftn_main) | |
5154 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5155 | DECL_INITIAL (ftn_main)); | |
5156 | ||
5157 | /* Output the GENERIC tree. */ | |
5158 | dump_function (TDI_original, ftn_main); | |
5159 | ||
bb982f66 | 5160 | cgraph_finalize_function (ftn_main, true); |
43702da6 | 5161 | |
5162 | if (old_context) | |
5163 | { | |
5164 | pop_function_context (); | |
5165 | saved_function_decls = saved_parent_function_decls; | |
5166 | } | |
5167 | current_function_decl = old_context; | |
7257a5d2 | 5168 | } |
5169 | ||
5170 | ||
89ac8ba1 | 5171 | /* Get the result expression for a procedure. */ |
5172 | ||
5173 | static tree | |
5174 | get_proc_result (gfc_symbol* sym) | |
5175 | { | |
5176 | if (sym->attr.subroutine || sym == sym->result) | |
5177 | { | |
5178 | if (current_fake_result_decl != NULL) | |
5179 | return TREE_VALUE (current_fake_result_decl); | |
5180 | ||
5181 | return NULL_TREE; | |
5182 | } | |
5183 | ||
5184 | return sym->result->backend_decl; | |
5185 | } | |
5186 | ||
5187 | ||
5188 | /* Generate an appropriate return-statement for a procedure. */ | |
5189 | ||
5190 | tree | |
5191 | gfc_generate_return (void) | |
5192 | { | |
5193 | gfc_symbol* sym; | |
5194 | tree result; | |
5195 | tree fndecl; | |
5196 | ||
5197 | sym = current_procedure_symbol; | |
5198 | fndecl = sym->backend_decl; | |
5199 | ||
5200 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5201 | result = NULL_TREE; | |
5202 | else | |
5203 | { | |
5204 | result = get_proc_result (sym); | |
5205 | ||
5206 | /* Set the return value to the dummy result variable. The | |
5207 | types may be different for scalar default REAL functions | |
5208 | with -ff2c, therefore we have to convert. */ | |
5209 | if (result != NULL_TREE) | |
5210 | { | |
5211 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5212 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5213 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5214 | result); | |
89ac8ba1 | 5215 | } |
5216 | } | |
5217 | ||
5218 | return build1_v (RETURN_EXPR, result); | |
5219 | } | |
5220 | ||
5221 | ||
4ee9c684 | 5222 | /* Generate code for a function. */ |
5223 | ||
5224 | void | |
5225 | gfc_generate_function_code (gfc_namespace * ns) | |
5226 | { | |
5227 | tree fndecl; | |
5228 | tree old_context; | |
5229 | tree decl; | |
5230 | tree tmp; | |
89ac8ba1 | 5231 | stmtblock_t init, cleanup; |
4ee9c684 | 5232 | stmtblock_t body; |
89ac8ba1 | 5233 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5234 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5235 | gfc_symbol *sym; |
89ac8ba1 | 5236 | gfc_symbol *previous_procedure_symbol; |
2294b616 | 5237 | int rank; |
e50e62f5 | 5238 | bool is_recursive; |
4ee9c684 | 5239 | |
5240 | sym = ns->proc_name; | |
89ac8ba1 | 5241 | previous_procedure_symbol = current_procedure_symbol; |
5242 | current_procedure_symbol = sym; | |
1b716045 | 5243 | |
4ee9c684 | 5244 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5245 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5246 | sym->tlink = sym; |
5247 | ||
5248 | /* Create the declaration for functions with global scope. */ | |
5249 | if (!sym->backend_decl) | |
d896f9b3 | 5250 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5251 | |
5252 | fndecl = sym->backend_decl; | |
5253 | old_context = current_function_decl; | |
5254 | ||
5255 | if (old_context) | |
5256 | { | |
5257 | push_function_context (); | |
5258 | saved_parent_function_decls = saved_function_decls; | |
5259 | saved_function_decls = NULL_TREE; | |
5260 | } | |
5261 | ||
1b716045 | 5262 | trans_function_start (sym); |
4ee9c684 | 5263 | |
89ac8ba1 | 5264 | gfc_init_block (&init); |
4ee9c684 | 5265 | |
c6871095 | 5266 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
5267 | { | |
5268 | /* Copy length backend_decls to all entry point result | |
5269 | symbols. */ | |
5270 | gfc_entry_list *el; | |
5271 | tree backend_decl; | |
5272 | ||
eeebe20b | 5273 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
5274 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 5275 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 5276 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 5277 | } |
5278 | ||
4ee9c684 | 5279 | /* Translate COMMON blocks. */ |
5280 | gfc_trans_common (ns); | |
5281 | ||
c750cc52 | 5282 | /* Null the parent fake result declaration if this namespace is |
5283 | a module function or an external procedures. */ | |
5284 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5285 | || ns->parent == NULL) | |
5286 | parent_fake_result_decl = NULL_TREE; | |
5287 | ||
2b685f8e | 5288 | gfc_generate_contained_functions (ns); |
5289 | ||
9579733e | 5290 | nonlocal_dummy_decls = NULL; |
5291 | nonlocal_dummy_decl_pset = NULL; | |
5292 | ||
a961ca30 | 5293 | has_coarray_vars = false; |
4ee9c684 | 5294 | generate_local_vars (ns); |
5b11d932 | 5295 | |
a961ca30 | 5296 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5297 | generate_coarray_init (ns); | |
5298 | ||
c750cc52 | 5299 | /* Keep the parent fake result declaration in module functions |
5300 | or external procedures. */ | |
5301 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5302 | || ns->parent == NULL) | |
5303 | current_fake_result_decl = parent_fake_result_decl; | |
5304 | else | |
5305 | current_fake_result_decl = NULL_TREE; | |
5306 | ||
89ac8ba1 | 5307 | is_recursive = sym->attr.recursive |
5308 | || (sym->attr.entry_master | |
5309 | && sym->ns->entries->sym->attr.recursive); | |
5310 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5311 | && !is_recursive | |
5312 | && !gfc_option.flag_recursive) | |
5313 | { | |
5314 | char * msg; | |
5315 | ||
5316 | asprintf (&msg, "Recursive call to nonrecursive procedure '%s'", | |
5317 | sym->name); | |
5318 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); | |
5319 | TREE_STATIC (recurcheckvar) = 1; | |
5320 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
5321 | gfc_add_expr_to_block (&init, recurcheckvar); | |
5322 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
5323 | &sym->declared_at, msg); | |
5324 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 5325 | free (msg); |
89ac8ba1 | 5326 | } |
4ee9c684 | 5327 | |
5328 | /* Now generate the code for the body of this function. */ | |
5329 | gfc_init_block (&body); | |
5330 | ||
5331 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 5332 | && sym->attr.subroutine) |
4ee9c684 | 5333 | { |
5334 | tree alternate_return; | |
c750cc52 | 5335 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 5336 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 5337 | } |
5338 | ||
1b716045 | 5339 | if (ns->entries) |
5340 | { | |
5341 | /* Jump to the correct entry point. */ | |
5342 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
5343 | gfc_add_expr_to_block (&body, tmp); | |
5344 | } | |
5345 | ||
a4abf8a0 | 5346 | /* If bounds-checking is enabled, generate code to check passed in actual |
5347 | arguments against the expected dummy argument attributes (e.g. string | |
5348 | lengths). */ | |
c1630d65 | 5349 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 5350 | add_argument_checking (&body, sym); |
5351 | ||
4ee9c684 | 5352 | tmp = gfc_trans_code (ns->code); |
5353 | gfc_add_expr_to_block (&body, tmp); | |
5354 | ||
4ee9c684 | 5355 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node) |
5356 | { | |
89ac8ba1 | 5357 | tree result = get_proc_result (sym); |
4ee9c684 | 5358 | |
42766cb3 | 5359 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 5360 | { |
deb7edfc | 5361 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
5362 | && sym->result == sym) | |
5363 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
5364 | null_pointer_node)); | |
42766cb3 | 5365 | else if (sym->ts.type == BT_CLASS |
5366 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 5367 | && CLASS_DATA (sym)->attr.dimension == 0 |
5368 | && sym->result == sym) | |
42766cb3 | 5369 | { |
5370 | tmp = CLASS_DATA (sym)->backend_decl; | |
5371 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
5372 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
5373 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
5374 | null_pointer_node)); | |
5375 | } | |
deb7edfc | 5376 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 5377 | && sym->ts.u.derived->attr.alloc_comp |
5378 | && !sym->attr.allocatable) | |
53169279 | 5379 | { |
5380 | rank = sym->as ? sym->as->rank : 0; | |
89ac8ba1 | 5381 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, result, rank); |
5382 | gfc_add_expr_to_block (&init, tmp); | |
53169279 | 5383 | } |
5176859a | 5384 | } |
e50e62f5 | 5385 | |
fa7b6574 | 5386 | if (result == NULL_TREE) |
5387 | { | |
5388 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 5389 | if (warn_return_type && sym == sym->result) |
fa7b6574 | 5390 | gfc_warning ("Return value of function '%s' at %L not set", |
5391 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5392 | if (warn_return_type) |
5393 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 5394 | } |
4ee9c684 | 5395 | else |
89ac8ba1 | 5396 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 5397 | } |
89ac8ba1 | 5398 | |
5399 | gfc_init_block (&cleanup); | |
5400 | ||
5401 | /* Reset recursion-check variable. */ | |
5402 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5403 | && !is_recursive | |
5ae82d58 | 5404 | && !gfc_option.gfc_flag_openmp |
89ac8ba1 | 5405 | && recurcheckvar != NULL_TREE) |
e50e62f5 | 5406 | { |
89ac8ba1 | 5407 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
5408 | recurcheckvar = NULL; | |
e50e62f5 | 5409 | } |
2294b616 | 5410 | |
89ac8ba1 | 5411 | /* Finish the function body and add init and cleanup code. */ |
5412 | tmp = gfc_finish_block (&body); | |
5413 | gfc_start_wrapped_block (&try_block, tmp); | |
5414 | /* Add code to create and cleanup arrays. */ | |
5415 | gfc_trans_deferred_vars (sym, &try_block); | |
5416 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
5417 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 5418 | |
5419 | /* Add all the decls we created during processing. */ | |
5420 | decl = saved_function_decls; | |
5421 | while (decl) | |
5422 | { | |
5423 | tree next; | |
5424 | ||
1767a056 | 5425 | next = DECL_CHAIN (decl); |
5426 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 5427 | pushdecl (decl); |
4ee9c684 | 5428 | decl = next; |
5429 | } | |
5430 | saved_function_decls = NULL_TREE; | |
5431 | ||
89ac8ba1 | 5432 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 5433 | decl = getdecls (); |
4ee9c684 | 5434 | |
5435 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5436 | poplevel (1, 1); |
4ee9c684 | 5437 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5438 | ||
e5004242 | 5439 | DECL_SAVED_TREE (fndecl) |
5440 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5441 | DECL_INITIAL (fndecl)); | |
5442 | ||
9579733e | 5443 | if (nonlocal_dummy_decls) |
5444 | { | |
5445 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
5446 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
5447 | pointer_set_destroy (nonlocal_dummy_decl_pset); | |
5448 | nonlocal_dummy_decls = NULL; | |
5449 | nonlocal_dummy_decl_pset = NULL; | |
5450 | } | |
5451 | ||
4ee9c684 | 5452 | /* Output the GENERIC tree. */ |
5453 | dump_function (TDI_original, fndecl); | |
5454 | ||
5455 | /* Store the end of the function, so that we get good line number | |
5456 | info for the epilogue. */ | |
5457 | cfun->function_end_locus = input_location; | |
5458 | ||
5459 | /* We're leaving the context of this function, so zap cfun. | |
5460 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
5461 | tree_rest_of_compilation. */ | |
87d4aa85 | 5462 | set_cfun (NULL); |
4ee9c684 | 5463 | |
5464 | if (old_context) | |
5465 | { | |
5466 | pop_function_context (); | |
5467 | saved_function_decls = saved_parent_function_decls; | |
5468 | } | |
5469 | current_function_decl = old_context; | |
5470 | ||
8b01dcb7 | 5471 | if (decl_function_context (fndecl) && gfc_option.coarray != GFC_FCOARRAY_LIB |
a961ca30 | 5472 | && has_coarray_vars) |
6374121b | 5473 | /* Register this function with cgraph just far enough to get it |
a961ca30 | 5474 | added to our parent's nested function list. |
5475 | If there are static coarrays in this function, the nested _caf_init | |
5476 | function has already called cgraph_create_node, which also created | |
5477 | the cgraph node for this function. */ | |
460beda6 | 5478 | (void) cgraph_create_node (fndecl); |
4ee9c684 | 5479 | else |
bb982f66 | 5480 | cgraph_finalize_function (fndecl, true); |
df4d540f | 5481 | |
5482 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5483 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 5484 | |
5485 | if (sym->attr.is_main_program) | |
5486 | create_main_function (fndecl); | |
89ac8ba1 | 5487 | |
5488 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 5489 | } |
5490 | ||
7257a5d2 | 5491 | |
4ee9c684 | 5492 | void |
5493 | gfc_generate_constructors (void) | |
5494 | { | |
22d678e8 | 5495 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 5496 | #if 0 |
5497 | tree fnname; | |
5498 | tree type; | |
5499 | tree fndecl; | |
5500 | tree decl; | |
5501 | tree tmp; | |
5502 | ||
5503 | if (gfc_static_ctors == NULL_TREE) | |
5504 | return; | |
5505 | ||
db85cc4f | 5506 | fnname = get_file_function_name ("I"); |
e1036019 | 5507 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 5508 | |
e60a6f7b | 5509 | fndecl = build_decl (input_location, |
5510 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 5511 | TREE_PUBLIC (fndecl) = 1; |
5512 | ||
e60a6f7b | 5513 | decl = build_decl (input_location, |
5514 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 5515 | DECL_ARTIFICIAL (decl) = 1; |
5516 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 5517 | DECL_CONTEXT (decl) = fndecl; |
5518 | DECL_RESULT (fndecl) = decl; | |
5519 | ||
5520 | pushdecl (fndecl); | |
5521 | ||
5522 | current_function_decl = fndecl; | |
5523 | ||
b2c4af5e | 5524 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 5525 | |
b2c4af5e | 5526 | make_decl_rtl (fndecl); |
4ee9c684 | 5527 | |
00cf115c | 5528 | allocate_struct_function (fndecl, false); |
4ee9c684 | 5529 | |
cde2be84 | 5530 | pushlevel (); |
4ee9c684 | 5531 | |
5532 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
5533 | { | |
389dd41b | 5534 | tmp = build_call_expr_loc (input_location, |
5535 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 5536 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 5537 | } |
5538 | ||
e5004242 | 5539 | decl = getdecls (); |
cde2be84 | 5540 | poplevel (1, 1); |
4ee9c684 | 5541 | |
5542 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 5543 | DECL_SAVED_TREE (fndecl) |
5544 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5545 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 5546 | |
5547 | free_after_parsing (cfun); | |
5548 | free_after_compilation (cfun); | |
5549 | ||
6148a911 | 5550 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 5551 | |
5552 | current_function_decl = NULL_TREE; | |
5553 | #endif | |
5554 | } | |
5555 | ||
9ec7c303 | 5556 | /* Translates a BLOCK DATA program unit. This means emitting the |
5557 | commons contained therein plus their initializations. We also emit | |
5558 | a globally visible symbol to make sure that each BLOCK DATA program | |
5559 | unit remains unique. */ | |
5560 | ||
5561 | void | |
5562 | gfc_generate_block_data (gfc_namespace * ns) | |
5563 | { | |
5564 | tree decl; | |
5565 | tree id; | |
5566 | ||
b31f705b | 5567 | /* Tell the backend the source location of the block data. */ |
5568 | if (ns->proc_name) | |
5569 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
5570 | else | |
5571 | gfc_set_backend_locus (&gfc_current_locus); | |
5572 | ||
5573 | /* Process the DATA statements. */ | |
9ec7c303 | 5574 | gfc_trans_common (ns); |
5575 | ||
b31f705b | 5576 | /* Create a global symbol with the mane of the block data. This is to |
5577 | generate linker errors if the same name is used twice. It is never | |
5578 | really used. */ | |
9ec7c303 | 5579 | if (ns->proc_name) |
5580 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
5581 | else | |
5582 | id = get_identifier ("__BLOCK_DATA__"); | |
5583 | ||
e60a6f7b | 5584 | decl = build_decl (input_location, |
5585 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 5586 | TREE_PUBLIC (decl) = 1; |
5587 | TREE_STATIC (decl) = 1; | |
df4d540f | 5588 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 5589 | |
5590 | pushdecl (decl); | |
5591 | rest_of_decl_compilation (decl, 1, 0); | |
5592 | } | |
5593 | ||
b549d2a5 | 5594 | |
6a7084d7 | 5595 | /* Process the local variables of a BLOCK construct. */ |
5596 | ||
5597 | void | |
3c82e013 | 5598 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 5599 | { |
5600 | tree decl; | |
5601 | ||
5602 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 5603 | has_coarray_vars = false; |
5604 | ||
6a7084d7 | 5605 | generate_local_vars (ns); |
5606 | ||
a961ca30 | 5607 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5608 | generate_coarray_init (ns); | |
5609 | ||
6a7084d7 | 5610 | decl = saved_local_decls; |
5611 | while (decl) | |
5612 | { | |
5613 | tree next; | |
5614 | ||
1767a056 | 5615 | next = DECL_CHAIN (decl); |
5616 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 5617 | pushdecl (decl); |
5618 | decl = next; | |
5619 | } | |
5620 | saved_local_decls = NULL_TREE; | |
5621 | } | |
5622 | ||
5623 | ||
4ee9c684 | 5624 | #include "gt-fortran-trans-decl.h" |