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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. */ | |
cb4070e0 | 35 | #include "output.h" /* For decl_default_tls_model. */ |
4ee9c684 | 36 | #include "target.h" |
37 | #include "function.h" | |
4ee9c684 | 38 | #include "flags.h" |
39 | #include "cgraph.h" | |
df4d540f | 40 | #include "debug.h" |
4ee9c684 | 41 | #include "gfortran.h" |
9579733e | 42 | #include "pointer-set.h" |
126387b5 | 43 | #include "constructor.h" |
4ee9c684 | 44 | #include "trans.h" |
45 | #include "trans-types.h" | |
46 | #include "trans-array.h" | |
47 | #include "trans-const.h" | |
48 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
49 | #include "trans-stmt.h" | |
50 | ||
51 | #define MAX_LABEL_VALUE 99999 | |
52 | ||
53 | ||
54 | /* Holds the result of the function if no result variable specified. */ | |
55 | ||
56 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 57 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 58 | |
4ee9c684 | 59 | |
60 | /* Holds the variable DECLs for the current function. */ | |
61 | ||
d4163395 | 62 | static GTY(()) tree saved_function_decls; |
63 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 64 | |
9579733e | 65 | static struct pointer_set_t *nonlocal_dummy_decl_pset; |
66 | static GTY(()) tree nonlocal_dummy_decls; | |
4ee9c684 | 67 | |
6a7084d7 | 68 | /* Holds the variable DECLs that are locals. */ |
69 | ||
70 | static GTY(()) tree saved_local_decls; | |
71 | ||
4ee9c684 | 72 | /* The namespace of the module we're currently generating. Only used while |
73 | outputting decls for module variables. Do not rely on this being set. */ | |
74 | ||
75 | static gfc_namespace *module_namespace; | |
76 | ||
89ac8ba1 | 77 | /* The currently processed procedure symbol. */ |
78 | static gfc_symbol* current_procedure_symbol = NULL; | |
79 | ||
4ee9c684 | 80 | |
a961ca30 | 81 | /* With -fcoarray=lib: For generating the registering call |
82 | of static coarrays. */ | |
83 | static bool has_coarray_vars; | |
84 | static stmtblock_t caf_init_block; | |
85 | ||
86 | ||
4ee9c684 | 87 | /* List of static constructor functions. */ |
88 | ||
89 | tree gfc_static_ctors; | |
90 | ||
91 | ||
92 | /* Function declarations for builtin library functions. */ | |
93 | ||
4ee9c684 | 94 | tree gfor_fndecl_pause_numeric; |
95 | tree gfor_fndecl_pause_string; | |
96 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 97 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 98 | tree gfor_fndecl_stop_string; |
070cc790 | 99 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 100 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 101 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 102 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 103 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 104 | tree gfor_fndecl_os_error; |
50ad5fa2 | 105 | tree gfor_fndecl_generate_error; |
7257a5d2 | 106 | tree gfor_fndecl_set_args; |
8c84a5de | 107 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 108 | tree gfor_fndecl_set_options; |
15774a8b | 109 | tree gfor_fndecl_set_convert; |
f23886ab | 110 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 111 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 112 | tree gfor_fndecl_ctime; |
113 | tree gfor_fndecl_fdate; | |
dbc97b88 | 114 | tree gfor_fndecl_ttynam; |
4ee9c684 | 115 | tree gfor_fndecl_in_pack; |
116 | tree gfor_fndecl_in_unpack; | |
117 | tree gfor_fndecl_associated; | |
118 | ||
119 | ||
70b5944a | 120 | /* Coarray run-time library function decls. */ |
121 | tree gfor_fndecl_caf_init; | |
122 | tree gfor_fndecl_caf_finalize; | |
a961ca30 | 123 | tree gfor_fndecl_caf_register; |
d0d776fb | 124 | tree gfor_fndecl_caf_deregister; |
70b5944a | 125 | tree gfor_fndecl_caf_critical; |
126 | tree gfor_fndecl_caf_end_critical; | |
127 | tree gfor_fndecl_caf_sync_all; | |
128 | tree gfor_fndecl_caf_sync_images; | |
129 | tree gfor_fndecl_caf_error_stop; | |
130 | tree gfor_fndecl_caf_error_stop_str; | |
131 | ||
132 | /* Coarray global variables for num_images/this_image. */ | |
133 | ||
134 | tree gfort_gvar_caf_num_images; | |
135 | tree gfort_gvar_caf_this_image; | |
136 | ||
137 | ||
4ee9c684 | 138 | /* Math functions. Many other math functions are handled in |
139 | trans-intrinsic.c. */ | |
140 | ||
920e54ef | 141 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 142 | tree gfor_fndecl_math_ishftc4; |
143 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 144 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 145 | |
146 | ||
147 | /* String functions. */ | |
148 | ||
4ee9c684 | 149 | tree gfor_fndecl_compare_string; |
150 | tree gfor_fndecl_concat_string; | |
151 | tree gfor_fndecl_string_len_trim; | |
152 | tree gfor_fndecl_string_index; | |
153 | tree gfor_fndecl_string_scan; | |
154 | tree gfor_fndecl_string_verify; | |
155 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 156 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 157 | tree gfor_fndecl_adjustl; |
158 | tree gfor_fndecl_adjustr; | |
b44437b9 | 159 | tree gfor_fndecl_select_string; |
40b806de | 160 | tree gfor_fndecl_compare_string_char4; |
161 | tree gfor_fndecl_concat_string_char4; | |
162 | tree gfor_fndecl_string_len_trim_char4; | |
163 | tree gfor_fndecl_string_index_char4; | |
164 | tree gfor_fndecl_string_scan_char4; | |
165 | tree gfor_fndecl_string_verify_char4; | |
166 | tree gfor_fndecl_string_trim_char4; | |
167 | tree gfor_fndecl_string_minmax_char4; | |
168 | tree gfor_fndecl_adjustl_char4; | |
169 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 170 | tree gfor_fndecl_select_string_char4; |
171 | ||
172 | ||
173 | /* Conversion between character kinds. */ | |
174 | tree gfor_fndecl_convert_char1_to_char4; | |
175 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 176 | |
177 | ||
178 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 179 | tree gfor_fndecl_size0; |
180 | tree gfor_fndecl_size1; | |
9b057c29 | 181 | tree gfor_fndecl_iargc; |
4ee9c684 | 182 | |
59e2a584 | 183 | /* Intrinsic functions implemented in Fortran. */ |
184 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 185 | tree gfor_fndecl_si_kind; |
186 | tree gfor_fndecl_sr_kind; | |
187 | ||
4e8e57b0 | 188 | /* BLAS gemm functions. */ |
189 | tree gfor_fndecl_sgemm; | |
190 | tree gfor_fndecl_dgemm; | |
191 | tree gfor_fndecl_cgemm; | |
192 | tree gfor_fndecl_zgemm; | |
193 | ||
4ee9c684 | 194 | |
195 | static void | |
196 | gfc_add_decl_to_parent_function (tree decl) | |
197 | { | |
22d678e8 | 198 | gcc_assert (decl); |
4ee9c684 | 199 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
200 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 201 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 202 | saved_parent_function_decls = decl; |
203 | } | |
204 | ||
205 | void | |
206 | gfc_add_decl_to_function (tree decl) | |
207 | { | |
22d678e8 | 208 | gcc_assert (decl); |
4ee9c684 | 209 | TREE_USED (decl) = 1; |
210 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 211 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 212 | saved_function_decls = decl; |
213 | } | |
214 | ||
6a7084d7 | 215 | static void |
216 | add_decl_as_local (tree decl) | |
217 | { | |
218 | gcc_assert (decl); | |
219 | TREE_USED (decl) = 1; | |
220 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 221 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 222 | saved_local_decls = decl; |
223 | } | |
224 | ||
4ee9c684 | 225 | |
b797d6d3 | 226 | /* Build a backend label declaration. Set TREE_USED for named labels. |
227 | The context of the label is always the current_function_decl. All | |
228 | labels are marked artificial. */ | |
4ee9c684 | 229 | |
230 | tree | |
231 | gfc_build_label_decl (tree label_id) | |
232 | { | |
233 | /* 2^32 temporaries should be enough. */ | |
234 | static unsigned int tmp_num = 1; | |
235 | tree label_decl; | |
236 | char *label_name; | |
237 | ||
238 | if (label_id == NULL_TREE) | |
239 | { | |
240 | /* Build an internal label name. */ | |
241 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
242 | label_id = get_identifier (label_name); | |
243 | } | |
244 | else | |
245 | label_name = NULL; | |
246 | ||
247 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 248 | label_decl = build_decl (input_location, |
249 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 250 | DECL_CONTEXT (label_decl) = current_function_decl; |
251 | DECL_MODE (label_decl) = VOIDmode; | |
252 | ||
b797d6d3 | 253 | /* We always define the label as used, even if the original source |
254 | file never references the label. We don't want all kinds of | |
255 | spurious warnings for old-style Fortran code with too many | |
256 | labels. */ | |
257 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 258 | |
b797d6d3 | 259 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 260 | return label_decl; |
261 | } | |
262 | ||
263 | ||
b31f705b | 264 | /* Set the backend source location of a decl. */ |
265 | ||
266 | void | |
267 | gfc_set_decl_location (tree decl, locus * loc) | |
268 | { | |
b31f705b | 269 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 270 | } |
271 | ||
272 | ||
4ee9c684 | 273 | /* Return the backend label declaration for a given label structure, |
274 | or create it if it doesn't exist yet. */ | |
275 | ||
276 | tree | |
277 | gfc_get_label_decl (gfc_st_label * lp) | |
278 | { | |
4ee9c684 | 279 | if (lp->backend_decl) |
280 | return lp->backend_decl; | |
281 | else | |
282 | { | |
283 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
284 | tree label_decl; | |
285 | ||
286 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 287 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 288 | |
289 | /* Build a mangled name for the label. */ | |
290 | sprintf (label_name, "__label_%.6d", lp->value); | |
291 | ||
292 | /* Build the LABEL_DECL node. */ | |
293 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
294 | ||
295 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 296 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 297 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 298 | else |
299 | DECL_ARTIFICIAL (label_decl) = 1; | |
300 | ||
301 | /* Store the label in the label list and return the LABEL_DECL. */ | |
302 | lp->backend_decl = label_decl; | |
303 | return label_decl; | |
304 | } | |
305 | } | |
306 | ||
307 | ||
308 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
309 | ||
310 | static tree | |
311 | gfc_sym_identifier (gfc_symbol * sym) | |
312 | { | |
0509d0ee | 313 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
314 | return (get_identifier ("MAIN__")); | |
315 | else | |
316 | return (get_identifier (sym->name)); | |
4ee9c684 | 317 | } |
318 | ||
319 | ||
320 | /* Construct mangled name from symbol name. */ | |
321 | ||
322 | static tree | |
323 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
324 | { | |
325 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
326 | ||
c5d33754 | 327 | /* Prevent the mangling of identifiers that have an assigned |
328 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 329 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
330 | return get_identifier (sym->binding_label); | |
c5d33754 | 331 | |
4f0fae8e | 332 | if (sym->module == NULL) |
4ee9c684 | 333 | return gfc_sym_identifier (sym); |
334 | else | |
335 | { | |
f08a3f6f | 336 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 337 | return get_identifier (name); |
338 | } | |
339 | } | |
340 | ||
341 | ||
342 | /* Construct mangled function name from symbol name. */ | |
343 | ||
344 | static tree | |
345 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
346 | { | |
347 | int has_underscore; | |
348 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
349 | ||
c5d33754 | 350 | /* It may be possible to simply use the binding label if it's |
351 | provided, and remove the other checks. Then we could use it | |
352 | for other things if we wished. */ | |
353 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 354 | sym->binding_label) |
c5d33754 | 355 | /* use the binding label rather than the mangled name */ |
356 | return get_identifier (sym->binding_label); | |
357 | ||
4f0fae8e | 358 | if (sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 359 | || (sym->module != NULL && (sym->attr.external |
360 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4ee9c684 | 361 | { |
a2f97da7 | 362 | /* Main program is mangled into MAIN__. */ |
363 | if (sym->attr.is_main_program) | |
364 | return get_identifier ("MAIN__"); | |
365 | ||
366 | /* Intrinsic procedures are never mangled. */ | |
367 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 368 | return get_identifier (sym->name); |
369 | ||
370 | if (gfc_option.flag_underscoring) | |
371 | { | |
372 | has_underscore = strchr (sym->name, '_') != 0; | |
373 | if (gfc_option.flag_second_underscore && has_underscore) | |
374 | snprintf (name, sizeof name, "%s__", sym->name); | |
375 | else | |
376 | snprintf (name, sizeof name, "%s_", sym->name); | |
377 | return get_identifier (name); | |
378 | } | |
379 | else | |
380 | return get_identifier (sym->name); | |
381 | } | |
382 | else | |
383 | { | |
f08a3f6f | 384 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 385 | return get_identifier (name); |
386 | } | |
387 | } | |
388 | ||
389 | ||
1236e28b | 390 | void |
391 | gfc_set_decl_assembler_name (tree decl, tree name) | |
392 | { | |
393 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
394 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
395 | } | |
396 | ||
397 | ||
5ed82495 | 398 | /* Returns true if a variable of specified size should go on the stack. */ |
399 | ||
400 | int | |
401 | gfc_can_put_var_on_stack (tree size) | |
402 | { | |
403 | unsigned HOST_WIDE_INT low; | |
404 | ||
405 | if (!INTEGER_CST_P (size)) | |
406 | return 0; | |
407 | ||
408 | if (gfc_option.flag_max_stack_var_size < 0) | |
409 | return 1; | |
410 | ||
411 | if (TREE_INT_CST_HIGH (size) != 0) | |
412 | return 0; | |
413 | ||
414 | low = TREE_INT_CST_LOW (size); | |
415 | if (low > (unsigned HOST_WIDE_INT) gfc_option.flag_max_stack_var_size) | |
416 | return 0; | |
417 | ||
418 | /* TODO: Set a per-function stack size limit. */ | |
419 | ||
420 | return 1; | |
421 | } | |
422 | ||
423 | ||
b7bf3f81 | 424 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
425 | an expression involving its corresponding pointer. There are | |
426 | 2 cases; one for variable size arrays, and one for everything else, | |
427 | because variable-sized arrays require one fewer level of | |
428 | indirection. */ | |
429 | ||
430 | static void | |
431 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
432 | { | |
433 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
434 | tree value; | |
435 | ||
436 | /* Parameters need to be dereferenced. */ | |
437 | if (sym->cp_pointer->attr.dummy) | |
389dd41b | 438 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
439 | ptr_decl); | |
b7bf3f81 | 440 | |
441 | /* Check to see if we're dealing with a variable-sized array. */ | |
442 | if (sym->attr.dimension | |
443 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) | |
444 | { | |
942043f8 | 445 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 446 | them here. */ |
447 | value = convert (TREE_TYPE (decl), ptr_decl); | |
448 | } | |
449 | else | |
450 | { | |
451 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
452 | ptr_decl); | |
389dd41b | 453 | value = build_fold_indirect_ref_loc (input_location, |
454 | ptr_decl); | |
b7bf3f81 | 455 | } |
456 | ||
457 | SET_DECL_VALUE_EXPR (decl, value); | |
458 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 459 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 460 | } |
461 | ||
462 | ||
b9c7fce7 | 463 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 464 | |
465 | static void | |
b9c7fce7 | 466 | gfc_finish_decl (tree decl) |
4ee9c684 | 467 | { |
b9c7fce7 | 468 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
469 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 470 | |
b9c7fce7 | 471 | if (TREE_CODE (decl) != VAR_DECL) |
472 | return; | |
4ee9c684 | 473 | |
b9c7fce7 | 474 | if (DECL_SIZE (decl) == NULL_TREE |
475 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
476 | layout_decl (decl, 0); | |
477 | ||
478 | /* A few consistency checks. */ | |
479 | /* A static variable with an incomplete type is an error if it is | |
480 | initialized. Also if it is not file scope. Otherwise, let it | |
481 | through, but if it is not `extern' then it may cause an error | |
482 | message later. */ | |
483 | /* An automatic variable with an incomplete type is an error. */ | |
484 | ||
485 | /* We should know the storage size. */ | |
486 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
487 | || (TREE_STATIC (decl) | |
488 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) | |
489 | : DECL_EXTERNAL (decl))); | |
490 | ||
491 | /* The storage size should be constant. */ | |
492 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
493 | || !DECL_SIZE (decl) | |
494 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 495 | } |
496 | ||
497 | ||
498 | /* Apply symbol attributes to a variable, and add it to the function scope. */ | |
499 | ||
500 | static void | |
501 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
502 | { | |
c1977dbe | 503 | tree new_type; |
f888a3fb | 504 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
4ee9c684 | 505 | This is the equivalent of the TARGET variables. |
506 | We also need to set this if the variable is passed by reference in a | |
507 | CALL statement. */ | |
b549d2a5 | 508 | |
b7bf3f81 | 509 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 510 | if (sym->attr.cray_pointee) |
b7bf3f81 | 511 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 512 | |
4ee9c684 | 513 | if (sym->attr.target) |
514 | TREE_ADDRESSABLE (decl) = 1; | |
515 | /* If it wasn't used we wouldn't be getting it. */ | |
516 | TREE_USED (decl) = 1; | |
517 | ||
7415cfe4 | 518 | if (sym->attr.flavor == FL_PARAMETER |
519 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
520 | TREE_READONLY (decl) = 1; | |
521 | ||
4ee9c684 | 522 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
523 | because this would add them to the current scope rather than the | |
524 | function scope. */ | |
525 | if (current_function_decl != NULL_TREE) | |
526 | { | |
7af6a4af | 527 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 528 | || sym->result == sym) |
4ee9c684 | 529 | gfc_add_decl_to_function (decl); |
6a7084d7 | 530 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
531 | /* This is a BLOCK construct. */ | |
532 | add_decl_as_local (decl); | |
4ee9c684 | 533 | else |
534 | gfc_add_decl_to_parent_function (decl); | |
535 | } | |
536 | ||
b7bf3f81 | 537 | if (sym->attr.cray_pointee) |
538 | return; | |
539 | ||
c5cb468c | 540 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 541 | { |
542 | /* We need to put variables that are bind(c) into the common | |
543 | segment of the object file, because this is what C would do. | |
544 | gfortran would typically put them in either the BSS or | |
545 | initialized data segments, and only mark them as common if | |
546 | they were part of common blocks. However, if they are not put | |
ea657963 | 547 | into common space, then C cannot initialize global Fortran |
c5d33754 | 548 | variables that it interoperates with and the draft says that |
549 | either Fortran or C should be able to initialize it (but not | |
550 | both, of course.) (J3/04-007, section 15.3). */ | |
551 | TREE_PUBLIC(decl) = 1; | |
552 | DECL_COMMON(decl) = 1; | |
553 | } | |
554 | ||
4ee9c684 | 555 | /* If a variable is USE associated, it's always external. */ |
556 | if (sym->attr.use_assoc) | |
557 | { | |
558 | DECL_EXTERNAL (decl) = 1; | |
559 | TREE_PUBLIC (decl) = 1; | |
560 | } | |
4f0fae8e | 561 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 562 | { |
6b20224d | 563 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 564 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
4ee9c684 | 565 | /* This is the declaration of a module variable. */ |
87d9f569 | 566 | if (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used) |
c5cb468c | 567 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 568 | TREE_STATIC (decl) = 1; |
569 | } | |
570 | ||
f0d4969f | 571 | /* Derived types are a bit peculiar because of the possibility of |
572 | a default initializer; this must be applied each time the variable | |
573 | comes into scope it therefore need not be static. These variables | |
574 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 575 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 576 | SAVE_EXPLICIT. */ |
577 | if (!sym->attr.use_assoc | |
578 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 579 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
580 | || (gfc_option.coarray == GFC_FCOARRAY_LIB | |
581 | && sym->attr.codimension && !sym->attr.allocatable))) | |
4ee9c684 | 582 | TREE_STATIC (decl) = 1; |
ef814c81 | 583 | |
584 | if (sym->attr.volatile_) | |
585 | { | |
ef814c81 | 586 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 587 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 588 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
589 | TREE_TYPE (decl) = new_type; | |
ef814c81 | 590 | } |
591 | ||
4ee9c684 | 592 | /* Keep variables larger than max-stack-var-size off stack. */ |
593 | if (!sym->ns->proc_name->attr.recursive | |
594 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 595 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
596 | /* Put variable length auto array pointers always into stack. */ | |
597 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
598 | || sym->attr.dimension == 0 | |
599 | || sym->as->type != AS_EXPLICIT | |
600 | || sym->attr.pointer | |
601 | || sym->attr.allocatable) | |
602 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 603 | TREE_STATIC (decl) = 1; |
764f1175 | 604 | |
605 | /* Handle threadprivate variables. */ | |
9dda1f80 | 606 | if (sym->attr.threadprivate |
764f1175 | 607 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
608 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
e1b3b79b | 609 | |
610 | if (!sym->attr.target | |
611 | && !sym->attr.pointer | |
452695a8 | 612 | && !sym->attr.cray_pointee |
8bb76364 | 613 | && !sym->attr.proc_pointer) |
614 | DECL_RESTRICTED_P (decl) = 1; | |
4ee9c684 | 615 | } |
616 | ||
617 | ||
618 | /* Allocate the lang-specific part of a decl. */ | |
619 | ||
620 | void | |
621 | gfc_allocate_lang_decl (tree decl) | |
622 | { | |
ba72912a | 623 | DECL_LANG_SPECIFIC (decl) = ggc_alloc_cleared_lang_decl(sizeof |
624 | (struct lang_decl)); | |
4ee9c684 | 625 | } |
626 | ||
627 | /* Remember a symbol to generate initialization/cleanup code at function | |
628 | entry/exit. */ | |
629 | ||
630 | static void | |
631 | gfc_defer_symbol_init (gfc_symbol * sym) | |
632 | { | |
633 | gfc_symbol *p; | |
634 | gfc_symbol *last; | |
635 | gfc_symbol *head; | |
636 | ||
637 | /* Don't add a symbol twice. */ | |
638 | if (sym->tlink) | |
639 | return; | |
640 | ||
641 | last = head = sym->ns->proc_name; | |
642 | p = last->tlink; | |
643 | ||
644 | /* Make sure that setup code for dummy variables which are used in the | |
645 | setup of other variables is generated first. */ | |
646 | if (sym->attr.dummy) | |
647 | { | |
648 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
649 | This is a circular list, so don't go past the head. */ | |
650 | while (p != head | |
651 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
652 | { | |
653 | last = p; | |
654 | p = p->tlink; | |
655 | } | |
656 | } | |
657 | /* Insert in between last and p. */ | |
658 | last->tlink = sym; | |
659 | sym->tlink = p; | |
660 | } | |
661 | ||
662 | ||
9f5a9ac5 | 663 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
664 | backend_decl for a module symbol, if it all ready exists. If the | |
665 | module gsymbol does not exist, it is created. If the symbol does | |
666 | not exist, it is added to the gsymbol namespace. Returns true if | |
667 | an existing backend_decl is found. */ | |
668 | ||
669 | bool | |
670 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
671 | { | |
672 | gfc_gsymbol *gsym; | |
673 | gfc_symbol *s; | |
674 | gfc_symtree *st; | |
675 | ||
676 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
677 | ||
678 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
679 | { | |
680 | st = NULL; | |
681 | s = NULL; | |
682 | ||
683 | if (gsym) | |
684 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
685 | ||
686 | if (!s) | |
687 | { | |
688 | if (!gsym) | |
689 | { | |
690 | gsym = gfc_get_gsymbol (sym->module); | |
691 | gsym->type = GSYM_MODULE; | |
692 | gsym->ns = gfc_get_namespace (NULL, 0); | |
693 | } | |
694 | ||
695 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
696 | st->n.sym = sym; | |
697 | sym->refs++; | |
698 | } | |
699 | else if (sym->attr.flavor == FL_DERIVED) | |
700 | { | |
c2958b6b | 701 | if (s && s->attr.flavor == FL_PROCEDURE) |
702 | { | |
703 | gfc_interface *intr; | |
704 | gcc_assert (s->attr.generic); | |
705 | for (intr = s->generic; intr; intr = intr->next) | |
706 | if (intr->sym->attr.flavor == FL_DERIVED) | |
707 | { | |
708 | s = intr->sym; | |
709 | break; | |
710 | } | |
711 | } | |
712 | ||
9f5a9ac5 | 713 | if (!s->backend_decl) |
714 | s->backend_decl = gfc_get_derived_type (s); | |
715 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
716 | return true; | |
717 | } | |
718 | else if (s->backend_decl) | |
719 | { | |
85ec2f13 | 720 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 721 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
722 | true); | |
723 | else if (sym->ts.type == BT_CHARACTER) | |
724 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
725 | sym->backend_decl = s->backend_decl; | |
726 | return true; | |
727 | } | |
728 | } | |
729 | return false; | |
730 | } | |
731 | ||
732 | ||
4ee9c684 | 733 | /* Create an array index type variable with function scope. */ |
734 | ||
735 | static tree | |
736 | create_index_var (const char * pfx, int nest) | |
737 | { | |
738 | tree decl; | |
739 | ||
740 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
741 | if (nest) | |
742 | gfc_add_decl_to_parent_function (decl); | |
743 | else | |
744 | gfc_add_decl_to_function (decl); | |
745 | return decl; | |
746 | } | |
747 | ||
748 | ||
749 | /* Create variables to hold all the non-constant bits of info for a | |
750 | descriptorless array. Remember these in the lang-specific part of the | |
751 | type. */ | |
752 | ||
753 | static void | |
754 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
755 | { | |
756 | tree type; | |
757 | int dim; | |
758 | int nest; | |
7b82374f | 759 | gfc_namespace* procns; |
4ee9c684 | 760 | |
761 | type = TREE_TYPE (decl); | |
762 | ||
763 | /* We just use the descriptor, if there is one. */ | |
764 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
765 | return; | |
766 | ||
22d678e8 | 767 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 768 | procns = gfc_find_proc_namespace (sym->ns); |
769 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 770 | && !sym->attr.contained; |
771 | ||
a961ca30 | 772 | if (sym->attr.codimension && gfc_option.coarray == GFC_FCOARRAY_LIB |
7dce33fe | 773 | && sym->as->type != AS_ASSUMED_SHAPE |
a961ca30 | 774 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
775 | { | |
776 | tree token; | |
777 | ||
d881175c | 778 | token = gfc_create_var_np (build_qualified_type (pvoid_type_node, |
779 | TYPE_QUAL_RESTRICT), | |
780 | "caf_token"); | |
a961ca30 | 781 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
782 | DECL_ARTIFICIAL (token) = 1; | |
783 | TREE_STATIC (token) = 1; | |
784 | gfc_add_decl_to_function (token); | |
785 | } | |
786 | ||
4ee9c684 | 787 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
788 | { | |
789 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 790 | { |
791 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
792 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
793 | } | |
9ca15c9b | 794 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 795 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
796 | && (sym->as->type != AS_ASSUMED_SIZE | |
797 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 798 | { |
799 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
800 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
801 | } | |
4ee9c684 | 802 | |
803 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 804 | { |
805 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
806 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
807 | } | |
4ee9c684 | 808 | } |
076094b7 | 809 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
810 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
811 | { | |
812 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
813 | { | |
814 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
815 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
816 | } | |
817 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
818 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
819 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
820 | { | |
821 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
822 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
823 | } | |
824 | } | |
4ee9c684 | 825 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
826 | { | |
827 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
828 | "offset"); | |
86254bbf | 829 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
830 | ||
4ee9c684 | 831 | if (nest) |
832 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
833 | else | |
834 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
835 | } | |
d4163395 | 836 | |
837 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
838 | && sym->as->type != AS_ASSUMED_SIZE) | |
86254bbf | 839 | { |
840 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
841 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
842 | } | |
d4163395 | 843 | |
844 | if (POINTER_TYPE_P (type)) | |
845 | { | |
846 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
847 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
848 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
849 | type = TREE_TYPE (type); | |
850 | } | |
851 | ||
852 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
853 | { | |
854 | tree size, range; | |
855 | ||
fd779e1d | 856 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
857 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 858 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
859 | size); | |
860 | TYPE_DOMAIN (type) = range; | |
861 | layout_type (type); | |
862 | } | |
6cf159a6 | 863 | |
6cf159a6 | 864 | if (TYPE_NAME (type) != NULL_TREE |
865 | && GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1) != NULL_TREE | |
866 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1)) == VAR_DECL) | |
867 | { | |
868 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
869 | ||
870 | for (dim = 0; dim < sym->as->rank - 1; dim++) | |
871 | { | |
872 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
873 | gtype = TREE_TYPE (gtype); | |
874 | } | |
875 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
876 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
877 | TYPE_NAME (type) = NULL_TREE; | |
878 | } | |
879 | ||
880 | if (TYPE_NAME (type) == NULL_TREE) | |
881 | { | |
882 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
883 | ||
884 | for (dim = sym->as->rank - 1; dim >= 0; dim--) | |
885 | { | |
7130ec9d | 886 | tree lbound, ubound; |
887 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
888 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
889 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 890 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 891 | /* Ensure the bound variables aren't optimized out at -O0. |
892 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 893 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
894 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
895 | end up in debug info. */ | |
7130ec9d | 896 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
897 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
898 | { | |
899 | if (DECL_NAME (lbound) | |
900 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
901 | "lbound") != 0) | |
84bfaaeb | 902 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 903 | DECL_IGNORED_P (lbound) = 0; |
904 | } | |
905 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
906 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
907 | { | |
908 | if (DECL_NAME (ubound) | |
909 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
910 | "ubound") != 0) | |
84bfaaeb | 911 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 912 | DECL_IGNORED_P (ubound) = 0; |
913 | } | |
6cf159a6 | 914 | } |
e60a6f7b | 915 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
916 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 917 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
918 | } | |
4ee9c684 | 919 | } |
920 | ||
921 | ||
922 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 923 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 924 | initialization, and construct full type information. */ |
925 | ||
926 | static tree | |
927 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
928 | { | |
929 | tree decl; | |
930 | tree type; | |
931 | gfc_array_spec *as; | |
932 | char *name; | |
3d8dea5a | 933 | gfc_packed packed; |
4ee9c684 | 934 | int n; |
935 | bool known_size; | |
936 | ||
937 | if (sym->attr.pointer || sym->attr.allocatable) | |
938 | return dummy; | |
939 | ||
940 | /* Add to list of variables if not a fake result variable. */ | |
941 | if (sym->attr.result || sym->attr.dummy) | |
942 | gfc_defer_symbol_init (sym); | |
943 | ||
944 | type = TREE_TYPE (dummy); | |
22d678e8 | 945 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
4ee9c684 | 946 | && POINTER_TYPE_P (type)); |
947 | ||
f888a3fb | 948 | /* Do we know the element size? */ |
4ee9c684 | 949 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 950 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
4ee9c684 | 951 | |
952 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (type))) | |
953 | { | |
954 | /* For descriptorless arrays with known element size the actual | |
955 | argument is sufficient. */ | |
22d678e8 | 956 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
4ee9c684 | 957 | gfc_build_qualified_array (dummy, sym); |
958 | return dummy; | |
959 | } | |
960 | ||
961 | type = TREE_TYPE (type); | |
962 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
963 | { | |
cb8e3560 | 964 | /* Create a descriptorless array pointer. */ |
4ee9c684 | 965 | as = sym->as; |
3d8dea5a | 966 | packed = PACKED_NO; |
3d235846 | 967 | |
968 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
969 | are not repacked. */ | |
970 | if (!gfc_option.flag_repack_arrays || sym->attr.target) | |
4ee9c684 | 971 | { |
972 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 973 | packed = PACKED_FULL; |
4ee9c684 | 974 | } |
975 | else | |
976 | { | |
977 | if (as->type == AS_EXPLICIT) | |
978 | { | |
3d8dea5a | 979 | packed = PACKED_FULL; |
4ee9c684 | 980 | for (n = 0; n < as->rank; n++) |
981 | { | |
982 | if (!(as->upper[n] | |
983 | && as->lower[n] | |
984 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
985 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
3d8dea5a | 986 | packed = PACKED_PARTIAL; |
4ee9c684 | 987 | } |
988 | } | |
989 | else | |
3d8dea5a | 990 | packed = PACKED_PARTIAL; |
4ee9c684 | 991 | } |
992 | ||
993 | type = gfc_typenode_for_spec (&sym->ts); | |
e1b3b79b | 994 | type = gfc_get_nodesc_array_type (type, sym->as, packed, |
995 | !sym->attr.target); | |
4ee9c684 | 996 | } |
997 | else | |
998 | { | |
999 | /* We now have an expression for the element size, so create a fully | |
1000 | qualified type. Reset sym->backend decl or this will just return the | |
1001 | old type. */ | |
d95efb59 | 1002 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1003 | sym->backend_decl = NULL_TREE; |
1004 | type = gfc_sym_type (sym); | |
3d8dea5a | 1005 | packed = PACKED_FULL; |
4ee9c684 | 1006 | } |
1007 | ||
1008 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1009 | decl = build_decl (input_location, |
1010 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1011 | |
1012 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1013 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1014 | TREE_PUBLIC (decl) = 0; |
1015 | TREE_STATIC (decl) = 0; | |
1016 | DECL_EXTERNAL (decl) = 0; | |
1017 | ||
1018 | /* We should never get deferred shape arrays here. We used to because of | |
1019 | frontend bugs. */ | |
22d678e8 | 1020 | gcc_assert (sym->as->type != AS_DEFERRED); |
4ee9c684 | 1021 | |
3d8dea5a | 1022 | if (packed == PACKED_PARTIAL) |
1023 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1024 | else if (packed == PACKED_FULL) | |
1025 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1026 | |
1027 | gfc_build_qualified_array (decl, sym); | |
1028 | ||
1029 | if (DECL_LANG_SPECIFIC (dummy)) | |
1030 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1031 | else | |
1032 | gfc_allocate_lang_decl (decl); | |
1033 | ||
1034 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1035 | ||
1036 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1037 | || sym->attr.contained) | |
1038 | gfc_add_decl_to_function (decl); | |
1039 | else | |
1040 | gfc_add_decl_to_parent_function (decl); | |
1041 | ||
1042 | return decl; | |
1043 | } | |
1044 | ||
9579733e | 1045 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1046 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1047 | pointing to the artificial variable for debug info purposes. */ | |
1048 | ||
1049 | static void | |
1050 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1051 | { | |
1052 | tree decl, dummy; | |
1053 | ||
1054 | if (! nonlocal_dummy_decl_pset) | |
1055 | nonlocal_dummy_decl_pset = pointer_set_create (); | |
1056 | ||
1057 | if (pointer_set_insert (nonlocal_dummy_decl_pset, sym->backend_decl)) | |
1058 | return; | |
1059 | ||
1060 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1061 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1062 | TREE_TYPE (sym->backend_decl)); |
1063 | DECL_ARTIFICIAL (decl) = 0; | |
1064 | TREE_USED (decl) = 1; | |
1065 | TREE_PUBLIC (decl) = 0; | |
1066 | TREE_STATIC (decl) = 0; | |
1067 | DECL_EXTERNAL (decl) = 0; | |
1068 | if (DECL_BY_REFERENCE (dummy)) | |
1069 | DECL_BY_REFERENCE (decl) = 1; | |
1070 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1071 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1072 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1073 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1074 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1075 | nonlocal_dummy_decls = decl; |
1076 | } | |
4ee9c684 | 1077 | |
1078 | /* Return a constant or a variable to use as a string length. Does not | |
1079 | add the decl to the current scope. */ | |
1080 | ||
1081 | static tree | |
1082 | gfc_create_string_length (gfc_symbol * sym) | |
1083 | { | |
eeebe20b | 1084 | gcc_assert (sym->ts.u.cl); |
1085 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1086 | |
eeebe20b | 1087 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1088 | { |
a4abf8a0 | 1089 | tree length; |
4ee9c684 | 1090 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 2]; |
1091 | ||
1092 | /* Also prefix the mangled name. */ | |
1093 | strcpy (&name[1], sym->name); | |
1094 | name[0] = '.'; | |
e60a6f7b | 1095 | length = build_decl (input_location, |
1096 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1097 | gfc_charlen_type_node); |
4ee9c684 | 1098 | DECL_ARTIFICIAL (length) = 1; |
1099 | TREE_USED (length) = 1; | |
d4163395 | 1100 | if (sym->ns->proc_name->tlink != NULL) |
1101 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1102 | |
eeebe20b | 1103 | sym->ts.u.cl->backend_decl = length; |
4ee9c684 | 1104 | } |
1105 | ||
eeebe20b | 1106 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1107 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1108 | } |
1109 | ||
c8f1568f | 1110 | /* If a variable is assigned a label, we add another two auxiliary |
1111 | variables. */ | |
1112 | ||
1113 | static void | |
1114 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1115 | { | |
1116 | tree addr; | |
1117 | tree length; | |
1118 | tree decl; | |
1119 | ||
1120 | gcc_assert (sym->backend_decl); | |
1121 | ||
1122 | decl = sym->backend_decl; | |
1123 | gfc_allocate_lang_decl (decl); | |
1124 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1125 | length = build_decl (input_location, |
1126 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1127 | gfc_charlen_type_node); |
e60a6f7b | 1128 | addr = build_decl (input_location, |
1129 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1130 | pvoid_type_node); |
1131 | gfc_finish_var_decl (length, sym); | |
1132 | gfc_finish_var_decl (addr, sym); | |
1133 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1134 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1135 | target label's address. Otherwise, value is the length of a format string | |
1136 | and ASSIGN_ADDR is its address. */ | |
1137 | if (TREE_STATIC (length)) | |
35bf1214 | 1138 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1139 | else |
1140 | gfc_defer_symbol_init (sym); | |
1141 | ||
1142 | GFC_DECL_STRING_LEN (decl) = length; | |
1143 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1144 | } | |
4ee9c684 | 1145 | |
36b0a1b0 | 1146 | |
1147 | static tree | |
1148 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1149 | { | |
1150 | unsigned id; | |
1151 | tree attr; | |
1152 | ||
1153 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1154 | if (sym_attr.ext_attr & (1 << id)) | |
1155 | { | |
1156 | attr = build_tree_list ( | |
1157 | get_identifier (ext_attr_list[id].middle_end_name), | |
1158 | NULL_TREE); | |
1159 | list = chainon (list, attr); | |
1160 | } | |
1161 | ||
1162 | return list; | |
1163 | } | |
1164 | ||
1165 | ||
802532b9 | 1166 | static void build_function_decl (gfc_symbol * sym, bool global); |
1167 | ||
1168 | ||
4ee9c684 | 1169 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1170 | exist. */ | |
1171 | ||
1172 | tree | |
1173 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1174 | { | |
1175 | tree decl; | |
1176 | tree length = NULL_TREE; | |
36b0a1b0 | 1177 | tree attributes; |
4ee9c684 | 1178 | int byref; |
cd2c99b8 | 1179 | bool intrinsic_array_parameter = false; |
4ee9c684 | 1180 | |
0b5dc8b5 | 1181 | gcc_assert (sym->attr.referenced |
d0f6ad22 | 1182 | || sym->attr.use_assoc |
40c74b02 | 1183 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1184 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1185 | && sym->backend_decl)); | |
4ee9c684 | 1186 | |
ff70e443 | 1187 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1188 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1189 | else | |
1190 | byref = 0; | |
1191 | ||
09c509ed | 1192 | /* Make sure that the vtab for the declared type is completed. */ |
1193 | if (sym->ts.type == BT_CLASS) | |
1194 | { | |
50b4b37b | 1195 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1196 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1197 | { |
1198 | gfc_find_derived_vtab (c->ts.u.derived); | |
1199 | gfc_get_derived_type (sym->ts.u.derived); | |
1200 | } | |
09c509ed | 1201 | } |
1202 | ||
617125a6 | 1203 | /* All deferred character length procedures need to retain the backend |
1204 | decl, which is a pointer to the character length in the caller's | |
1205 | namespace and to declare a local character length. */ | |
1206 | if (!byref && sym->attr.function | |
1207 | && sym->ts.type == BT_CHARACTER | |
1208 | && sym->ts.deferred | |
1209 | && sym->ts.u.cl->passed_length == NULL | |
1210 | && sym->ts.u.cl->backend_decl | |
1211 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1212 | { | |
1213 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1214 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1215 | length = gfc_create_string_length (sym); | |
1216 | } | |
1217 | ||
4ee9c684 | 1218 | if ((sym->attr.dummy && ! sym->attr.function) || (sym->attr.result && byref)) |
1219 | { | |
1220 | /* Return via extra parameter. */ | |
1221 | if (sym->attr.result && byref | |
1222 | && !sym->backend_decl) | |
1223 | { | |
1224 | sym->backend_decl = | |
1225 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1226 | /* For entry master function skip over the __entry |
1227 | argument. */ | |
1228 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1229 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1230 | } |
1231 | ||
1232 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1233 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1234 | |
1235 | /* Create a character length variable. */ | |
1236 | if (sym->ts.type == BT_CHARACTER) | |
1237 | { | |
617125a6 | 1238 | /* For a deferred dummy, make a new string length variable. */ |
1239 | if (sym->ts.deferred | |
1240 | && | |
1241 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1242 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1243 | ||
1244 | if (sym->ts.deferred && sym->attr.result | |
1245 | && sym->ts.u.cl->passed_length == NULL | |
1246 | && sym->ts.u.cl->backend_decl) | |
1247 | { | |
1248 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1249 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1250 | } | |
1251 | ||
eeebe20b | 1252 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1253 | length = gfc_create_string_length (sym); |
1254 | else | |
eeebe20b | 1255 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1256 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1257 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1258 | { |
d95efb59 | 1259 | /* Add the string length to the same context as the symbol. */ |
1260 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1261 | gfc_add_decl_to_function (length); | |
1262 | else | |
1263 | gfc_add_decl_to_parent_function (length); | |
1264 | ||
1265 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1266 | DECL_CONTEXT (length)); | |
1267 | ||
d4163395 | 1268 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1269 | } |
4ee9c684 | 1270 | } |
1271 | ||
1272 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1273 | if ((sym->attr.dimension || sym->attr.codimension) |
1274 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1275 | { |
d95efb59 | 1276 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1277 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1278 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1279 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1280 | sym->backend_decl = decl; | |
4ee9c684 | 1281 | } |
1282 | ||
1283 | TREE_USED (sym->backend_decl) = 1; | |
c8f1568f | 1284 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1285 | { | |
1286 | gfc_add_assign_aux_vars (sym); | |
1287 | } | |
9579733e | 1288 | |
1289 | if (sym->attr.dimension | |
1290 | && DECL_LANG_SPECIFIC (sym->backend_decl) | |
1291 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1292 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1293 | gfc_nonlocal_dummy_array_decl (sym); | |
1294 | ||
fd23cc08 | 1295 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1296 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1297 | ||
1298 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1299 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1300 | return sym->backend_decl; | |
4ee9c684 | 1301 | } |
1302 | ||
1303 | if (sym->backend_decl) | |
1304 | return sym->backend_decl; | |
1305 | ||
a25debd0 | 1306 | /* Special case for array-valued named constants from intrinsic |
1307 | procedures; those are inlined. */ | |
1308 | if (sym->attr.use_assoc && sym->from_intmod | |
1309 | && sym->attr.flavor == FL_PARAMETER) | |
1310 | intrinsic_array_parameter = true; | |
1311 | ||
7ea64434 | 1312 | /* If use associated and whole file compilation, use the module |
094bca96 | 1313 | declaration. */ |
7ea64434 | 1314 | if (gfc_option.flag_whole_file |
a25debd0 | 1315 | && (sym->attr.flavor == FL_VARIABLE |
1316 | || sym->attr.flavor == FL_PARAMETER) | |
9f5a9ac5 | 1317 | && sym->attr.use_assoc |
1318 | && !intrinsic_array_parameter | |
1319 | && sym->module | |
1320 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1321 | { |
1322 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1323 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1324 | return sym->backend_decl; | |
1325 | } | |
7ea64434 | 1326 | |
4ee9c684 | 1327 | if (sym->attr.flavor == FL_PROCEDURE) |
1328 | { | |
802532b9 | 1329 | /* Catch function declarations. Only used for actual parameters, |
1330 | procedure pointers and procptr initialization targets. */ | |
1331 | if (sym->attr.external || sym->attr.use_assoc || sym->attr.intrinsic) | |
1332 | { | |
1333 | decl = gfc_get_extern_function_decl (sym); | |
1334 | gfc_set_decl_location (decl, &sym->declared_at); | |
1335 | } | |
1336 | else | |
1337 | { | |
1338 | if (!sym->backend_decl) | |
1339 | build_function_decl (sym, false); | |
1340 | decl = sym->backend_decl; | |
1341 | } | |
4ee9c684 | 1342 | return decl; |
1343 | } | |
1344 | ||
1345 | if (sym->attr.intrinsic) | |
1346 | internal_error ("intrinsic variable which isn't a procedure"); | |
1347 | ||
1348 | /* Create string length decl first so that they can be used in the | |
1349 | type declaration. */ | |
1350 | if (sym->ts.type == BT_CHARACTER) | |
1351 | length = gfc_create_string_length (sym); | |
1352 | ||
1353 | /* Create the decl for the variable. */ | |
e60a6f7b | 1354 | decl = build_decl (sym->declared_at.lb->location, |
1355 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1356 | |
1236e28b | 1357 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1358 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1359 | decl_attributes (&decl, attributes, 0); | |
1360 | ||
f888a3fb | 1361 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1362 | This is done here rather than in gfc_finish_var_decl because it |
1363 | is different for string length variables. */ | |
4f0fae8e | 1364 | if (sym->module) |
df4d540f | 1365 | { |
1236e28b | 1366 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1367 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1368 | DECL_IGNORED_P (decl) = 1; |
1369 | } | |
4ee9c684 | 1370 | |
7a777e43 | 1371 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1372 | { |
1373 | /* Create variables to hold the non-constant bits of array info. */ | |
1374 | gfc_build_qualified_array (decl, sym); | |
1375 | ||
b3c3927c | 1376 | if (sym->attr.contiguous |
1377 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1378 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1379 | } | |
1380 | ||
0a96a7cc | 1381 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1382 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1383 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1384 | (CLASS_DATA (sym)->attr.dimension |
1385 | || CLASS_DATA (sym)->attr.allocatable)) | |
0a96a7cc | 1386 | || (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
1387 | /* This applies a derived type default initializer. */ | |
1388 | || (sym->ts.type == BT_DERIVED | |
1389 | && sym->attr.save == SAVE_NONE | |
1390 | && !sym->attr.data | |
1391 | && !sym->attr.allocatable | |
1392 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1393 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1394 | gfc_defer_symbol_init (sym); |
2294b616 | 1395 | |
4ee9c684 | 1396 | gfc_finish_var_decl (decl, sym); |
1397 | ||
bda1f152 | 1398 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1399 | { |
4ee9c684 | 1400 | /* Character variables need special handling. */ |
1401 | gfc_allocate_lang_decl (decl); | |
1402 | ||
bda1f152 | 1403 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1404 | { |
1405 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 2]; | |
1406 | ||
4f0fae8e | 1407 | if (sym->module) |
4ee9c684 | 1408 | { |
1409 | /* Also prefix the mangled name for symbols from modules. */ | |
1410 | strcpy (&name[1], sym->name); | |
1411 | name[0] = '.'; | |
1412 | strcpy (&name[1], | |
1413 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (length))); | |
1236e28b | 1414 | gfc_set_decl_assembler_name (decl, get_identifier (name)); |
4ee9c684 | 1415 | } |
1416 | gfc_finish_var_decl (length, sym); | |
22d678e8 | 1417 | gcc_assert (!sym->value); |
4ee9c684 | 1418 | } |
4ee9c684 | 1419 | } |
1033248c | 1420 | else if (sym->attr.subref_array_pointer) |
1421 | { | |
1422 | /* We need the span for these beasts. */ | |
1423 | gfc_allocate_lang_decl (decl); | |
1424 | } | |
1425 | ||
1426 | if (sym->attr.subref_array_pointer) | |
1427 | { | |
1428 | tree span; | |
1429 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1430 | span = build_decl (input_location, |
1431 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1432 | gfc_array_index_type); |
1433 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1434 | TREE_STATIC (span) = TREE_STATIC (decl); |
1435 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1436 | |
1437 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1438 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1439 | } |
1440 | ||
fd23cc08 | 1441 | if (sym->ts.type == BT_CLASS) |
1442 | GFC_DECL_CLASS(decl) = 1; | |
1443 | ||
4ee9c684 | 1444 | sym->backend_decl = decl; |
1445 | ||
c8f1568f | 1446 | if (sym->attr.assign) |
21ebda4d | 1447 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1448 | |
cd2c99b8 | 1449 | if (intrinsic_array_parameter) |
1450 | { | |
1451 | TREE_STATIC (decl) = 1; | |
1452 | DECL_EXTERNAL (decl) = 0; | |
1453 | } | |
1454 | ||
1455 | if (TREE_STATIC (decl) | |
1456 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1457 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
1458 | || gfc_option.flag_max_stack_var_size == 0 | |
a961ca30 | 1459 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
0d3bb1de | 1460 | && (gfc_option.coarray != GFC_FCOARRAY_LIB |
1461 | || !sym->attr.codimension || sym->attr.allocatable)) | |
a545a8f8 | 1462 | { |
1463 | /* Add static initializer. For procedures, it is only needed if | |
1464 | SAVE is specified otherwise they need to be reinitialized | |
1465 | every time the procedure is entered. The TREE_STATIC is | |
1466 | in this case due to -fmax-stack-var-size=. */ | |
bda1f152 | 1467 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
802532b9 | 1468 | TREE_TYPE (decl), |
0d3bb1de | 1469 | sym->attr.dimension |
1470 | || (sym->attr.codimension | |
1471 | && sym->attr.allocatable), | |
802532b9 | 1472 | sym->attr.pointer |
1473 | || sym->attr.allocatable, | |
1474 | sym->attr.proc_pointer); | |
bda1f152 | 1475 | } |
1476 | ||
9579733e | 1477 | if (!TREE_STATIC (decl) |
1478 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1479 | && !sym->attr.pointer | |
1480 | && !sym->attr.allocatable | |
1481 | && !sym->attr.proc_pointer) | |
1482 | DECL_BY_REFERENCE (decl) = 1; | |
1483 | ||
ebad7c3e | 1484 | if (sym->attr.vtab |
1485 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
98976ae1 | 1486 | { |
1487 | TREE_READONLY (decl) = 1; | |
1488 | GFC_DECL_PUSH_TOPLEVEL (decl) = 1; | |
1489 | } | |
ebad7c3e | 1490 | |
4ee9c684 | 1491 | return decl; |
1492 | } | |
1493 | ||
1494 | ||
dbe60343 | 1495 | /* Substitute a temporary variable in place of the real one. */ |
1496 | ||
1497 | void | |
1498 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1499 | { | |
1500 | save->attr = sym->attr; | |
1501 | save->decl = sym->backend_decl; | |
1502 | ||
1503 | gfc_clear_attr (&sym->attr); | |
1504 | sym->attr.referenced = 1; | |
1505 | sym->attr.flavor = FL_VARIABLE; | |
1506 | ||
1507 | sym->backend_decl = decl; | |
1508 | } | |
1509 | ||
1510 | ||
1511 | /* Restore the original variable. */ | |
1512 | ||
1513 | void | |
1514 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1515 | { | |
1516 | sym->attr = save->attr; | |
1517 | sym->backend_decl = save->decl; | |
1518 | } | |
1519 | ||
1520 | ||
cad0ddcf | 1521 | /* Declare a procedure pointer. */ |
1522 | ||
1523 | static tree | |
1524 | get_proc_pointer_decl (gfc_symbol *sym) | |
1525 | { | |
1526 | tree decl; | |
36b0a1b0 | 1527 | tree attributes; |
cad0ddcf | 1528 | |
1529 | decl = sym->backend_decl; | |
1530 | if (decl) | |
1531 | return decl; | |
1532 | ||
e60a6f7b | 1533 | decl = build_decl (input_location, |
1534 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1535 | build_pointer_type (gfc_get_function_type (sym))); |
1536 | ||
e72f979a | 1537 | if ((sym->ns->proc_name |
1538 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1539 | || sym->attr.contained) |
1540 | gfc_add_decl_to_function (decl); | |
cf269acc | 1541 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1542 | gfc_add_decl_to_parent_function (decl); |
1543 | ||
1544 | sym->backend_decl = decl; | |
1545 | ||
cf269acc | 1546 | /* If a variable is USE associated, it's always external. */ |
1547 | if (sym->attr.use_assoc) | |
1548 | { | |
1549 | DECL_EXTERNAL (decl) = 1; | |
1550 | TREE_PUBLIC (decl) = 1; | |
1551 | } | |
1552 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1553 | { | |
1554 | /* This is the declaration of a module variable. */ | |
1555 | TREE_PUBLIC (decl) = 1; | |
1556 | TREE_STATIC (decl) = 1; | |
1557 | } | |
1558 | ||
cad0ddcf | 1559 | if (!sym->attr.use_assoc |
1560 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1561 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1562 | TREE_STATIC (decl) = 1; | |
1563 | ||
1564 | if (TREE_STATIC (decl) && sym->value) | |
1565 | { | |
1566 | /* Add static initializer. */ | |
1567 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1568 | TREE_TYPE (decl), |
1569 | sym->attr.dimension, | |
1570 | false, true); | |
cad0ddcf | 1571 | } |
1572 | ||
8fb1768c | 1573 | /* Handle threadprivate procedure pointers. */ |
1574 | if (sym->attr.threadprivate | |
1575 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
1576 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
1577 | ||
36b0a1b0 | 1578 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1579 | decl_attributes (&decl, attributes, 0); | |
1580 | ||
cad0ddcf | 1581 | return decl; |
1582 | } | |
1583 | ||
1584 | ||
4ee9c684 | 1585 | /* Get a basic decl for an external function. */ |
1586 | ||
1587 | tree | |
1588 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1589 | { | |
1590 | tree type; | |
1591 | tree fndecl; | |
36b0a1b0 | 1592 | tree attributes; |
4ee9c684 | 1593 | gfc_expr e; |
1594 | gfc_intrinsic_sym *isym; | |
1595 | gfc_expr argexpr; | |
17000b91 | 1596 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1597 | tree name; |
1598 | tree mangled_name; | |
83aeedb9 | 1599 | gfc_gsymbol *gsym; |
4ee9c684 | 1600 | |
1601 | if (sym->backend_decl) | |
1602 | return sym->backend_decl; | |
1603 | ||
1b716045 | 1604 | /* We should never be creating external decls for alternate entry points. |
1605 | The procedure may be an alternate entry point, but we don't want/need | |
1606 | to know that. */ | |
22d678e8 | 1607 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1608 | |
cad0ddcf | 1609 | if (sym->attr.proc_pointer) |
1610 | return get_proc_pointer_decl (sym); | |
1611 | ||
83aeedb9 | 1612 | /* See if this is an external procedure from the same file. If so, |
1613 | return the backend_decl. */ | |
1614 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name); | |
1615 | ||
1616 | if (gfc_option.flag_whole_file | |
40c74b02 | 1617 | && (!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
83aeedb9 | 1618 | && !sym->backend_decl |
1619 | && gsym && gsym->ns | |
1620 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
d896f9b3 | 1621 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) |
83aeedb9 | 1622 | { |
d896f9b3 | 1623 | if (!gsym->ns->proc_name->backend_decl) |
1624 | { | |
1625 | /* By construction, the external function cannot be | |
1626 | a contained procedure. */ | |
1627 | locus old_loc; | |
1628 | tree save_fn_decl = current_function_decl; | |
1629 | ||
1630 | current_function_decl = NULL_TREE; | |
4671339c | 1631 | gfc_save_backend_locus (&old_loc); |
d896f9b3 | 1632 | push_cfun (cfun); |
1633 | ||
1634 | gfc_create_function_decl (gsym->ns, true); | |
1635 | ||
1636 | pop_cfun (); | |
4671339c | 1637 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1638 | current_function_decl = save_fn_decl; |
1639 | } | |
1640 | ||
83aeedb9 | 1641 | /* If the namespace has entries, the proc_name is the |
1642 | entry master. Find the entry and use its backend_decl. | |
1643 | otherwise, use the proc_name backend_decl. */ | |
1644 | if (gsym->ns->entries) | |
1645 | { | |
1646 | gfc_entry_list *entry = gsym->ns->entries; | |
1647 | ||
1648 | for (; entry; entry = entry->next) | |
1649 | { | |
1650 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1651 | { | |
1652 | sym->backend_decl = entry->sym->backend_decl; | |
1653 | break; | |
1654 | } | |
1655 | } | |
1656 | } | |
1657 | else | |
40c74b02 | 1658 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1659 | |
1660 | if (sym->backend_decl) | |
40c74b02 | 1661 | { |
1662 | /* Avoid problems of double deallocation of the backend declaration | |
1663 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1664 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1665 | sym->attr.use_assoc = 0; | |
1666 | ||
1667 | return sym->backend_decl; | |
1668 | } | |
83aeedb9 | 1669 | } |
1670 | ||
7ea64434 | 1671 | /* See if this is a module procedure from the same file. If so, |
1672 | return the backend_decl. */ | |
1673 | if (sym->module) | |
1674 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1675 | ||
1676 | if (gfc_option.flag_whole_file | |
1677 | && gsym && gsym->ns | |
1678 | && gsym->type == GSYM_MODULE) | |
1679 | { | |
1680 | gfc_symbol *s; | |
1681 | ||
1682 | s = NULL; | |
1683 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1684 | if (s && s->backend_decl) | |
1685 | { | |
85ec2f13 | 1686 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1687 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1688 | true); | |
1689 | else if (sym->ts.type == BT_CHARACTER) | |
1690 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1691 | sym->backend_decl = s->backend_decl; |
1692 | return sym->backend_decl; | |
1693 | } | |
1694 | } | |
1695 | ||
4ee9c684 | 1696 | if (sym->attr.intrinsic) |
1697 | { | |
1698 | /* Call the resolution function to get the actual name. This is | |
1699 | a nasty hack which relies on the resolution functions only looking | |
1700 | at the first argument. We pass NULL for the second argument | |
1701 | otherwise things like AINT get confused. */ | |
1702 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1703 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1704 | |
1705 | memset (&e, 0, sizeof (e)); | |
1706 | e.expr_type = EXPR_FUNCTION; | |
1707 | ||
1708 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1709 | gcc_assert (isym->formal); |
4ee9c684 | 1710 | argexpr.ts = isym->formal->ts; |
1711 | ||
1712 | if (isym->formal->next == NULL) | |
1713 | isym->resolve.f1 (&e, &argexpr); | |
1714 | else | |
1715 | { | |
37e0271a | 1716 | if (isym->formal->next->next == NULL) |
1717 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1718 | else | |
1719 | { | |
7fe55cc9 | 1720 | if (isym->formal->next->next->next == NULL) |
1721 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1722 | else | |
1723 | { | |
1724 | /* All specific intrinsics take less than 5 arguments. */ | |
1725 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1726 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1727 | } | |
37e0271a | 1728 | } |
4ee9c684 | 1729 | } |
bdaed7d2 | 1730 | |
1731 | if (gfc_option.flag_f2c | |
1732 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) | |
1733 | || e.ts.type == BT_COMPLEX)) | |
1734 | { | |
1735 | /* Specific which needs a different implementation if f2c | |
1736 | calling conventions are used. */ | |
17000b91 | 1737 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1738 | } |
1739 | else | |
17000b91 | 1740 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1741 | |
4ee9c684 | 1742 | name = get_identifier (s); |
1743 | mangled_name = name; | |
1744 | } | |
1745 | else | |
1746 | { | |
1747 | name = gfc_sym_identifier (sym); | |
1748 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1749 | } | |
1750 | ||
1751 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1752 | fndecl = build_decl (input_location, |
1753 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1754 | |
e27454ee | 1755 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1756 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1757 | the opposite of declaring a function as static in C). */ |
e27454ee | 1758 | DECL_EXTERNAL (fndecl) = 1; |
1759 | TREE_PUBLIC (fndecl) = 1; | |
1760 | ||
1236e28b | 1761 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1762 | decl_attributes (&fndecl, attributes, 0); | |
1763 | ||
1764 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 1765 | |
1766 | /* Set the context of this decl. */ | |
1767 | if (0 && sym->ns && sym->ns->proc_name) | |
1768 | { | |
1769 | /* TODO: Add external decls to the appropriate scope. */ | |
1770 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
1771 | } | |
1772 | else | |
1773 | { | |
f888a3fb | 1774 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 1775 | DECL_CONTEXT (fndecl) = NULL_TREE; |
1776 | } | |
1777 | ||
4ee9c684 | 1778 | /* Set attributes for PURE functions. A call to PURE function in the |
1779 | Fortran 95 sense is both pure and without side effects in the C | |
1780 | sense. */ | |
1781 | if (sym->attr.pure || sym->attr.elemental) | |
1782 | { | |
4d4b9f0e | 1783 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1784 | DECL_PURE_P (fndecl) = 1; |
be393645 | 1785 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
1786 | parameters and don't use alternate returns (is this | |
1787 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 1788 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 1789 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 1790 | } |
1791 | ||
6e27d773 | 1792 | /* Mark non-returning functions. */ |
1793 | if (sym->attr.noreturn) | |
1794 | TREE_THIS_VOLATILE(fndecl) = 1; | |
1795 | ||
4ee9c684 | 1796 | sym->backend_decl = fndecl; |
1797 | ||
1798 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
1799 | pushdecl_top_level (fndecl); | |
1800 | ||
1801 | return fndecl; | |
1802 | } | |
1803 | ||
1804 | ||
1805 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 1806 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
1807 | a master function with alternate entry points. */ | |
4ee9c684 | 1808 | |
1b716045 | 1809 | static void |
d896f9b3 | 1810 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 1811 | { |
36b0a1b0 | 1812 | tree fndecl, type, attributes; |
4ee9c684 | 1813 | symbol_attribute attr; |
1b716045 | 1814 | tree result_decl; |
4ee9c684 | 1815 | gfc_formal_arglist *f; |
1816 | ||
22d678e8 | 1817 | gcc_assert (!sym->attr.external); |
4ee9c684 | 1818 | |
802532b9 | 1819 | if (sym->backend_decl) |
1820 | return; | |
1821 | ||
b31f705b | 1822 | /* Set the line and filename. sym->declared_at seems to point to the |
1823 | last statement for subroutines, but it'll do for now. */ | |
1824 | gfc_set_backend_locus (&sym->declared_at); | |
1825 | ||
4ee9c684 | 1826 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 1827 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 1828 | || DECL_FILE_SCOPE_P (current_function_decl) |
1829 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
1830 | == NAMESPACE_DECL)); | |
4ee9c684 | 1831 | |
1832 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1833 | fndecl = build_decl (input_location, |
1834 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 1835 | |
1236e28b | 1836 | attr = sym->attr; |
1837 | ||
e27454ee | 1838 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1839 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1840 | the opposite of declaring a function as static in C). */ |
e27454ee | 1841 | DECL_EXTERNAL (fndecl) = 0; |
1842 | ||
1843 | if (!current_function_decl | |
c5cb468c | 1844 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 1845 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
1846 | || sym->attr.public_used)) | |
e27454ee | 1847 | TREE_PUBLIC (fndecl) = 1; |
1848 | ||
1236e28b | 1849 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
1850 | decl_attributes (&fndecl, attributes, 0); | |
1851 | ||
4ee9c684 | 1852 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 1853 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 1854 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 1855 | result_decl = NULL_TREE; |
1856 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
1857 | if (attr.function) | |
1858 | { | |
1859 | if (gfc_return_by_reference (sym)) | |
1860 | type = void_type_node; | |
1861 | else | |
1862 | { | |
1863 | if (sym->result != sym) | |
1864 | result_decl = gfc_sym_identifier (sym->result); | |
1865 | ||
1866 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
1867 | } | |
1868 | } | |
1869 | else | |
1870 | { | |
1871 | /* Look for alternate return placeholders. */ | |
1872 | int has_alternate_returns = 0; | |
1873 | for (f = sym->formal; f; f = f->next) | |
1874 | { | |
1875 | if (f->sym == NULL) | |
1876 | { | |
1877 | has_alternate_returns = 1; | |
1878 | break; | |
1879 | } | |
1880 | } | |
1881 | ||
1882 | if (has_alternate_returns) | |
1883 | type = integer_type_node; | |
1884 | else | |
1885 | type = void_type_node; | |
1886 | } | |
1887 | ||
e60a6f7b | 1888 | result_decl = build_decl (input_location, |
1889 | RESULT_DECL, result_decl, type); | |
540edea7 | 1890 | DECL_ARTIFICIAL (result_decl) = 1; |
1891 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 1892 | DECL_CONTEXT (result_decl) = fndecl; |
1893 | DECL_RESULT (fndecl) = result_decl; | |
1894 | ||
1895 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 1896 | layout_decl (result_decl, 0); */ |
4ee9c684 | 1897 | |
4ee9c684 | 1898 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 1899 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 1900 | |
f888a3fb | 1901 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 1902 | Fortran 95 sense is both pure and without side effects in the C |
1903 | sense. */ | |
1904 | if (attr.pure || attr.elemental) | |
1905 | { | |
be393645 | 1906 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 1907 | including an alternate return. In that case it can also be |
231e961a | 1908 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 1909 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1910 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 1911 | TREE_SIDE_EFFECTS (fndecl) = 0; |
1912 | } | |
1913 | ||
36b0a1b0 | 1914 | |
4ee9c684 | 1915 | /* Layout the function declaration and put it in the binding level |
1916 | of the current function. */ | |
d896f9b3 | 1917 | |
ebad7c3e | 1918 | if (global |
1919 | || (sym->name[0] == '_' && strncmp ("__copy", sym->name, 6) == 0)) | |
d896f9b3 | 1920 | pushdecl_top_level (fndecl); |
1921 | else | |
1922 | pushdecl (fndecl); | |
1b716045 | 1923 | |
16a40513 | 1924 | /* Perform name mangling if this is a top level or module procedure. */ |
1925 | if (current_function_decl == NULL_TREE) | |
1926 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
1927 | ||
1b716045 | 1928 | sym->backend_decl = fndecl; |
1929 | } | |
1930 | ||
1931 | ||
1932 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
1933 | ||
1934 | static void | |
1935 | create_function_arglist (gfc_symbol * sym) | |
1936 | { | |
1937 | tree fndecl; | |
1938 | gfc_formal_arglist *f; | |
d4163395 | 1939 | tree typelist, hidden_typelist; |
1940 | tree arglist, hidden_arglist; | |
1b716045 | 1941 | tree type; |
1942 | tree parm; | |
1943 | ||
1944 | fndecl = sym->backend_decl; | |
1945 | ||
e4b2c26c | 1946 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
1947 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 1948 | arglist = NULL_TREE; |
d4163395 | 1949 | hidden_arglist = NULL_TREE; |
e4b2c26c | 1950 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 1951 | |
1952 | if (sym->attr.entry_master) | |
1953 | { | |
1954 | type = TREE_VALUE (typelist); | |
e60a6f7b | 1955 | parm = build_decl (input_location, |
1956 | PARM_DECL, get_identifier ("__entry"), type); | |
1b716045 | 1957 | |
1958 | DECL_CONTEXT (parm) = fndecl; | |
1959 | DECL_ARG_TYPE (parm) = type; | |
1960 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 1961 | gfc_finish_decl (parm); |
d95efb59 | 1962 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 1963 | |
1964 | arglist = chainon (arglist, parm); | |
1965 | typelist = TREE_CHAIN (typelist); | |
1966 | } | |
1967 | ||
e4b2c26c | 1968 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 1969 | { |
d4163395 | 1970 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 1971 | |
e4b2c26c | 1972 | if (sym->ts.type == BT_CHARACTER) |
1973 | { | |
e4b2c26c | 1974 | /* Length of character result. */ |
d4163395 | 1975 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 1976 | |
e60a6f7b | 1977 | length = build_decl (input_location, |
1978 | PARM_DECL, | |
e4b2c26c | 1979 | get_identifier (".__result"), |
d4163395 | 1980 | len_type); |
eeebe20b | 1981 | if (!sym->ts.u.cl->length) |
e4b2c26c | 1982 | { |
eeebe20b | 1983 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 1984 | TREE_USED (length) = 1; |
4ee9c684 | 1985 | } |
22d678e8 | 1986 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 1987 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 1988 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 1989 | TREE_READONLY (length) = 1; |
b5b40b3f | 1990 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 1991 | gfc_finish_decl (length); |
eeebe20b | 1992 | if (sym->ts.u.cl->backend_decl == NULL |
1993 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 1994 | { |
1995 | gfc_symbol *arg; | |
1996 | tree backend_decl; | |
4ee9c684 | 1997 | |
eeebe20b | 1998 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 1999 | { |
e60a6f7b | 2000 | tree len = build_decl (input_location, |
2001 | VAR_DECL, | |
d4163395 | 2002 | get_identifier ("..__result"), |
2003 | gfc_charlen_type_node); | |
2004 | DECL_ARTIFICIAL (len) = 1; | |
2005 | TREE_USED (len) = 1; | |
eeebe20b | 2006 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2007 | } |
4ee9c684 | 2008 | |
d4163395 | 2009 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2010 | arg = sym->result ? sym->result : sym; | |
2011 | backend_decl = arg->backend_decl; | |
2012 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2013 | type. */ | |
2014 | arg->backend_decl = NULL; | |
2015 | type = gfc_sym_type (arg); | |
2016 | arg->backend_decl = backend_decl; | |
2017 | type = build_reference_type (type); | |
2018 | } | |
2019 | } | |
4ee9c684 | 2020 | |
e60a6f7b | 2021 | parm = build_decl (input_location, |
2022 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2023 | |
d4163395 | 2024 | DECL_CONTEXT (parm) = fndecl; |
2025 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2026 | TREE_READONLY (parm) = 1; | |
2027 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2028 | gfc_finish_decl (parm); |
4ee9c684 | 2029 | |
d4163395 | 2030 | arglist = chainon (arglist, parm); |
2031 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2032 | |
d4163395 | 2033 | if (sym->ts.type == BT_CHARACTER) |
2034 | { | |
2035 | gfc_allocate_lang_decl (parm); | |
2036 | arglist = chainon (arglist, length); | |
e4b2c26c | 2037 | typelist = TREE_CHAIN (typelist); |
2038 | } | |
2039 | } | |
4ee9c684 | 2040 | |
d4163395 | 2041 | hidden_typelist = typelist; |
2042 | for (f = sym->formal; f; f = f->next) | |
2043 | if (f->sym != NULL) /* Ignore alternate returns. */ | |
2044 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2045 | ||
e4b2c26c | 2046 | for (f = sym->formal; f; f = f->next) |
2047 | { | |
2048 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2049 | |
e4b2c26c | 2050 | /* Ignore alternate returns. */ |
2051 | if (f->sym == NULL) | |
2052 | continue; | |
4ee9c684 | 2053 | |
e4b2c26c | 2054 | type = TREE_VALUE (typelist); |
4ee9c684 | 2055 | |
296db1d1 | 2056 | if (f->sym->ts.type == BT_CHARACTER |
2057 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2058 | { |
2059 | tree len_type = TREE_VALUE (hidden_typelist); | |
2060 | tree length = NULL_TREE; | |
617125a6 | 2061 | if (!f->sym->ts.deferred) |
2062 | gcc_assert (len_type == gfc_charlen_type_node); | |
2063 | else | |
2064 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2065 | |
2066 | strcpy (&name[1], f->sym->name); | |
2067 | name[0] = '_'; | |
e60a6f7b | 2068 | length = build_decl (input_location, |
2069 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2070 | |
d4163395 | 2071 | hidden_arglist = chainon (hidden_arglist, length); |
2072 | DECL_CONTEXT (length) = fndecl; | |
2073 | DECL_ARTIFICIAL (length) = 1; | |
2074 | DECL_ARG_TYPE (length) = len_type; | |
2075 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2076 | gfc_finish_decl (length); |
4ee9c684 | 2077 | |
a4abf8a0 | 2078 | /* Remember the passed value. */ |
eeebe20b | 2079 | if (f->sym->ts.u.cl->passed_length != NULL) |
6be7c32c | 2080 | { |
2081 | /* This can happen if the same type is used for multiple | |
2082 | arguments. We need to copy cl as otherwise | |
2083 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2084 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2085 | } |
eeebe20b | 2086 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2087 | |
d4163395 | 2088 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2089 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2090 | { |
d4163395 | 2091 | TREE_USED (length) = 1; |
eeebe20b | 2092 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2093 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2094 | } |
2095 | ||
2096 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2097 | ||
eeebe20b | 2098 | if (f->sym->ts.u.cl->backend_decl == NULL |
2099 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2100 | { |
eeebe20b | 2101 | if (f->sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2102 | gfc_create_string_length (f->sym); |
2103 | ||
2104 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2105 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2106 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2107 | else | |
2108 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2109 | } |
4ee9c684 | 2110 | } |
2111 | ||
d4163395 | 2112 | /* For non-constant length array arguments, make sure they use |
2113 | a different type node from TYPE_ARG_TYPES type. */ | |
2114 | if (f->sym->attr.dimension | |
2115 | && type == TREE_VALUE (typelist) | |
2116 | && TREE_CODE (type) == POINTER_TYPE | |
2117 | && GFC_ARRAY_TYPE_P (type) | |
2118 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2119 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2120 | { | |
2121 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2122 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2123 | else | |
2124 | type = gfc_sym_type (f->sym); | |
2125 | } | |
2126 | ||
cad0ddcf | 2127 | if (f->sym->attr.proc_pointer) |
2128 | type = build_pointer_type (type); | |
2129 | ||
2364aa60 | 2130 | if (f->sym->attr.volatile_) |
2131 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2132 | ||
69b1505f | 2133 | /* Build the argument declaration. */ |
e60a6f7b | 2134 | parm = build_decl (input_location, |
2135 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2136 | |
2364aa60 | 2137 | if (f->sym->attr.volatile_) |
2138 | { | |
2139 | TREE_THIS_VOLATILE (parm) = 1; | |
2140 | TREE_SIDE_EFFECTS (parm) = 1; | |
2141 | } | |
2142 | ||
d4163395 | 2143 | /* Fill in arg stuff. */ |
2144 | DECL_CONTEXT (parm) = fndecl; | |
2145 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2146 | /* All implementation args are read-only. */ | |
2147 | TREE_READONLY (parm) = 1; | |
98923a84 | 2148 | if (POINTER_TYPE_P (type) |
2149 | && (!f->sym->attr.proc_pointer | |
2150 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2151 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2152 | |
b9c7fce7 | 2153 | gfc_finish_decl (parm); |
d4163395 | 2154 | |
2155 | f->sym->backend_decl = parm; | |
2156 | ||
7dce33fe | 2157 | /* Coarrays which are descriptorless or assumed-shape pass with |
2158 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
85c94a64 | 2159 | if (f->sym->attr.codimension |
2160 | && gfc_option.coarray == GFC_FCOARRAY_LIB | |
7dce33fe | 2161 | && !f->sym->attr.allocatable) |
85c94a64 | 2162 | { |
2163 | tree caf_type; | |
2164 | tree token; | |
2165 | tree offset; | |
2166 | ||
2167 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2168 | && !sym->attr.is_bind_c); | |
2169 | caf_type = TREE_TYPE (f->sym->backend_decl); | |
2170 | ||
85c94a64 | 2171 | token = build_decl (input_location, PARM_DECL, |
2172 | create_tmp_var_name ("caf_token"), | |
2173 | build_qualified_type (pvoid_type_node, | |
2174 | TYPE_QUAL_RESTRICT)); | |
7dce33fe | 2175 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2176 | { | |
2177 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2178 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2179 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2180 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2181 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2182 | } | |
2183 | else | |
2184 | { | |
2185 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2186 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2187 | } | |
2188 | ||
85c94a64 | 2189 | DECL_CONTEXT (token) = fndecl; |
2190 | DECL_ARTIFICIAL (token) = 1; | |
2191 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2192 | TREE_READONLY (token) = 1; | |
2193 | hidden_arglist = chainon (hidden_arglist, token); | |
2194 | gfc_finish_decl (token); | |
2195 | ||
85c94a64 | 2196 | offset = build_decl (input_location, PARM_DECL, |
2197 | create_tmp_var_name ("caf_offset"), | |
2198 | gfc_array_index_type); | |
2199 | ||
7dce33fe | 2200 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2201 | { | |
2202 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2203 | == NULL_TREE); | |
2204 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2205 | } | |
2206 | else | |
2207 | { | |
2208 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2209 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2210 | } | |
85c94a64 | 2211 | DECL_CONTEXT (offset) = fndecl; |
2212 | DECL_ARTIFICIAL (offset) = 1; | |
2213 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2214 | TREE_READONLY (offset) = 1; | |
2215 | hidden_arglist = chainon (hidden_arglist, offset); | |
2216 | gfc_finish_decl (offset); | |
2217 | } | |
2218 | ||
d4163395 | 2219 | arglist = chainon (arglist, parm); |
e4b2c26c | 2220 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2221 | } |
e4b2c26c | 2222 | |
465e4a95 | 2223 | /* Add the hidden string length parameters, unless the procedure |
2224 | is bind(C). */ | |
2225 | if (!sym->attr.is_bind_c) | |
2226 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2227 | |
ebe27ea2 | 2228 | gcc_assert (hidden_typelist == NULL_TREE |
2229 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2230 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2231 | } |
e4b2c26c | 2232 | |
1b716045 | 2233 | /* Do the setup necessary before generating the body of a function. */ |
2234 | ||
2235 | static void | |
2236 | trans_function_start (gfc_symbol * sym) | |
2237 | { | |
2238 | tree fndecl; | |
2239 | ||
2240 | fndecl = sym->backend_decl; | |
2241 | ||
f888a3fb | 2242 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2243 | current_function_decl = fndecl; |
2244 | ||
f888a3fb | 2245 | /* Let the world know what we're about to do. */ |
1b716045 | 2246 | announce_function (fndecl); |
2247 | ||
16a40513 | 2248 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2249 | { |
f888a3fb | 2250 | /* Create RTL for function declaration. */ |
1b716045 | 2251 | rest_of_decl_compilation (fndecl, 1, 0); |
2252 | } | |
2253 | ||
f888a3fb | 2254 | /* Create RTL for function definition. */ |
1b716045 | 2255 | make_decl_rtl (fndecl); |
2256 | ||
1b716045 | 2257 | init_function_start (fndecl); |
2258 | ||
f888a3fb | 2259 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2260 | pushlevel (); |
1b716045 | 2261 | } |
2262 | ||
2263 | /* Create thunks for alternate entry points. */ | |
2264 | ||
2265 | static void | |
d896f9b3 | 2266 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2267 | { |
2268 | gfc_formal_arglist *formal; | |
2269 | gfc_formal_arglist *thunk_formal; | |
2270 | gfc_entry_list *el; | |
2271 | gfc_symbol *thunk_sym; | |
2272 | stmtblock_t body; | |
2273 | tree thunk_fndecl; | |
1b716045 | 2274 | tree tmp; |
b31f705b | 2275 | locus old_loc; |
1b716045 | 2276 | |
2277 | /* This should always be a toplevel function. */ | |
22d678e8 | 2278 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2279 | |
4671339c | 2280 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2281 | for (el = ns->entries; el; el = el->next) |
2282 | { | |
414c3a2c | 2283 | VEC(tree,gc) *args = NULL; |
2284 | VEC(tree,gc) *string_args = NULL; | |
2285 | ||
1b716045 | 2286 | thunk_sym = el->sym; |
2287 | ||
d896f9b3 | 2288 | build_function_decl (thunk_sym, global); |
1b716045 | 2289 | create_function_arglist (thunk_sym); |
2290 | ||
2291 | trans_function_start (thunk_sym); | |
2292 | ||
2293 | thunk_fndecl = thunk_sym->backend_decl; | |
2294 | ||
e5004242 | 2295 | gfc_init_block (&body); |
1b716045 | 2296 | |
f888a3fb | 2297 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2298 | tmp = build_int_cst (gfc_array_index_type, el->id); |
414c3a2c | 2299 | VEC_safe_push (tree, gc, args, tmp); |
1b716045 | 2300 | |
c6871095 | 2301 | if (thunk_sym->attr.function) |
2302 | { | |
2303 | if (gfc_return_by_reference (ns->proc_name)) | |
2304 | { | |
2305 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
414c3a2c | 2306 | VEC_safe_push (tree, gc, args, ref); |
c6871095 | 2307 | if (ns->proc_name->ts.type == BT_CHARACTER) |
1767a056 | 2308 | VEC_safe_push (tree, gc, args, DECL_CHAIN (ref)); |
c6871095 | 2309 | } |
2310 | } | |
2311 | ||
1b716045 | 2312 | for (formal = ns->proc_name->formal; formal; formal = formal->next) |
2313 | { | |
c6871095 | 2314 | /* Ignore alternate returns. */ |
2315 | if (formal->sym == NULL) | |
2316 | continue; | |
2317 | ||
1b716045 | 2318 | /* We don't have a clever way of identifying arguments, so resort to |
2319 | a brute-force search. */ | |
2320 | for (thunk_formal = thunk_sym->formal; | |
2321 | thunk_formal; | |
2322 | thunk_formal = thunk_formal->next) | |
2323 | { | |
2324 | if (thunk_formal->sym == formal->sym) | |
2325 | break; | |
2326 | } | |
2327 | ||
2328 | if (thunk_formal) | |
2329 | { | |
2330 | /* Pass the argument. */ | |
d95efb59 | 2331 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
414c3a2c | 2332 | VEC_safe_push (tree, gc, args, thunk_formal->sym->backend_decl); |
1b716045 | 2333 | if (formal->sym->ts.type == BT_CHARACTER) |
2334 | { | |
eeebe20b | 2335 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
414c3a2c | 2336 | VEC_safe_push (tree, gc, string_args, tmp); |
1b716045 | 2337 | } |
2338 | } | |
2339 | else | |
2340 | { | |
2341 | /* Pass NULL for a missing argument. */ | |
414c3a2c | 2342 | VEC_safe_push (tree, gc, args, null_pointer_node); |
1b716045 | 2343 | if (formal->sym->ts.type == BT_CHARACTER) |
2344 | { | |
7d3075f6 | 2345 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
414c3a2c | 2346 | VEC_safe_push (tree, gc, string_args, tmp); |
1b716045 | 2347 | } |
2348 | } | |
2349 | } | |
2350 | ||
2351 | /* Call the master function. */ | |
414c3a2c | 2352 | VEC_safe_splice (tree, gc, args, string_args); |
1b716045 | 2353 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2354 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2355 | if (ns->proc_name->attr.mixed_entry_master) |
2356 | { | |
2357 | tree union_decl, field; | |
2358 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2359 | ||
e60a6f7b | 2360 | union_decl = build_decl (input_location, |
2361 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2362 | TREE_TYPE (master_type)); |
2363 | DECL_ARTIFICIAL (union_decl) = 1; | |
2364 | DECL_EXTERNAL (union_decl) = 0; | |
2365 | TREE_PUBLIC (union_decl) = 0; | |
2366 | TREE_USED (union_decl) = 1; | |
2367 | layout_decl (union_decl, 0); | |
2368 | pushdecl (union_decl); | |
2369 | ||
2370 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2371 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2372 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2373 | gfc_add_expr_to_block (&body, tmp); |
2374 | ||
2375 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2376 | field; field = DECL_CHAIN (field)) |
c6871095 | 2377 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2378 | thunk_sym->result->name) == 0) | |
2379 | break; | |
2380 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2381 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2382 | TREE_TYPE (field), union_decl, field, | |
2383 | NULL_TREE); | |
2384 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
f75d6b8a | 2385 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2386 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2387 | tmp = build1_v (RETURN_EXPR, tmp); |
2388 | } | |
2389 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2390 | != void_type_node) | |
2391 | { | |
fd779e1d | 2392 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2393 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2394 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2395 | tmp = build1_v (RETURN_EXPR, tmp); |
2396 | } | |
1b716045 | 2397 | gfc_add_expr_to_block (&body, tmp); |
2398 | ||
2399 | /* Finish off this function and send it for code generation. */ | |
2400 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2401 | tmp = getdecls (); |
cde2be84 | 2402 | poplevel (1, 1); |
1b716045 | 2403 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2404 | DECL_SAVED_TREE (thunk_fndecl) |
2405 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2406 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2407 | |
2408 | /* Output the GENERIC tree. */ | |
2409 | dump_function (TDI_original, thunk_fndecl); | |
2410 | ||
2411 | /* Store the end of the function, so that we get good line number | |
2412 | info for the epilogue. */ | |
2413 | cfun->function_end_locus = input_location; | |
2414 | ||
2415 | /* We're leaving the context of this function, so zap cfun. | |
2416 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2417 | tree_rest_of_compilation. */ | |
87d4aa85 | 2418 | set_cfun (NULL); |
1b716045 | 2419 | |
2420 | current_function_decl = NULL_TREE; | |
2421 | ||
bb982f66 | 2422 | cgraph_finalize_function (thunk_fndecl, true); |
1b716045 | 2423 | |
2424 | /* We share the symbols in the formal argument list with other entry | |
2425 | points and the master function. Clear them so that they are | |
2426 | recreated for each function. */ | |
2427 | for (formal = thunk_sym->formal; formal; formal = formal->next) | |
c6871095 | 2428 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2429 | { | |
2430 | formal->sym->backend_decl = NULL_TREE; | |
2431 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2432 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2433 | } |
2434 | ||
2435 | if (thunk_sym->attr.function) | |
1b716045 | 2436 | { |
c6871095 | 2437 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2438 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2439 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2440 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2441 | } |
2442 | } | |
b31f705b | 2443 | |
4671339c | 2444 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2445 | } |
2446 | ||
2447 | ||
2448 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2449 | points. If global is true, generate the function in the global binding |
2450 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2451 | |
2452 | void | |
d896f9b3 | 2453 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2454 | { |
2455 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2456 | build_function_decl (ns->proc_name, global); |
1b716045 | 2457 | |
f888a3fb | 2458 | /* Compile the entry thunks. */ |
1b716045 | 2459 | if (ns->entries) |
d896f9b3 | 2460 | build_entry_thunks (ns, global); |
1b716045 | 2461 | |
2462 | /* Now create the read argument list. */ | |
2463 | create_function_arglist (ns->proc_name); | |
2464 | } | |
2465 | ||
c750cc52 | 2466 | /* Return the decl used to hold the function return value. If |
3350e716 | 2467 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2468 | |
2469 | tree | |
c750cc52 | 2470 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2471 | { |
c750cc52 | 2472 | tree decl; |
2473 | tree length; | |
2474 | tree this_fake_result_decl; | |
2475 | tree this_function_decl; | |
4ee9c684 | 2476 | |
2477 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2478 | ||
c750cc52 | 2479 | if (parent_flag) |
2480 | { | |
2481 | this_fake_result_decl = parent_fake_result_decl; | |
2482 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2483 | } | |
2484 | else | |
2485 | { | |
2486 | this_fake_result_decl = current_fake_result_decl; | |
2487 | this_function_decl = current_function_decl; | |
2488 | } | |
2489 | ||
c6871095 | 2490 | if (sym |
c750cc52 | 2491 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2492 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2493 | && sym != sym->ns->proc_name) |
2494 | { | |
d4163395 | 2495 | tree t = NULL, var; |
c750cc52 | 2496 | if (this_fake_result_decl != NULL) |
2497 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2498 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2499 | break; | |
2500 | if (t) | |
2501 | return TREE_VALUE (t); | |
c750cc52 | 2502 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2503 | ||
2504 | if (parent_flag) | |
2505 | this_fake_result_decl = parent_fake_result_decl; | |
2506 | else | |
2507 | this_fake_result_decl = current_fake_result_decl; | |
2508 | ||
d4163395 | 2509 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2510 | { |
2511 | tree field; | |
2512 | ||
2513 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2514 | field; field = DECL_CHAIN (field)) |
c6871095 | 2515 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2516 | sym->name) == 0) | |
2517 | break; | |
2518 | ||
2519 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2520 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2521 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2522 | } |
c750cc52 | 2523 | |
2524 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2525 | if (parent_flag) | |
2526 | gfc_add_decl_to_parent_function (var); | |
2527 | else | |
2528 | gfc_add_decl_to_function (var); | |
2529 | ||
d4163395 | 2530 | SET_DECL_VALUE_EXPR (var, decl); |
2531 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2532 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2533 | |
2534 | TREE_CHAIN (this_fake_result_decl) | |
2535 | = tree_cons (get_identifier (sym->name), var, | |
2536 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2537 | return var; |
c6871095 | 2538 | } |
2539 | ||
c750cc52 | 2540 | if (this_fake_result_decl != NULL_TREE) |
2541 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2542 | |
2543 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2544 | sym is NULL. */ | |
2545 | if (!sym) | |
2546 | return NULL_TREE; | |
2547 | ||
d4163395 | 2548 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2549 | { |
eeebe20b | 2550 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2551 | length = gfc_create_string_length (sym); |
2552 | else | |
eeebe20b | 2553 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2554 | if (TREE_CODE (length) == VAR_DECL |
2555 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2556 | gfc_add_decl_to_function (length); |
4ee9c684 | 2557 | } |
2558 | ||
2559 | if (gfc_return_by_reference (sym)) | |
2560 | { | |
c750cc52 | 2561 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2562 | |
c750cc52 | 2563 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2564 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2565 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2566 | |
2567 | TREE_USED (decl) = 1; | |
2568 | if (sym->as) | |
2569 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2570 | } | |
2571 | else | |
2572 | { | |
2573 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2574 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2575 | |
3350e716 | 2576 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2577 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2578 | VAR_DECL, get_identifier (name), |
3350e716 | 2579 | gfc_sym_type (sym)); |
2580 | else | |
1e71b314 | 2581 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2582 | VAR_DECL, get_identifier (name), |
3350e716 | 2583 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2584 | DECL_ARTIFICIAL (decl) = 1; |
2585 | DECL_EXTERNAL (decl) = 0; | |
2586 | TREE_PUBLIC (decl) = 0; | |
2587 | TREE_USED (decl) = 1; | |
764f1175 | 2588 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2589 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2590 | |
2591 | layout_decl (decl, 0); | |
2592 | ||
c750cc52 | 2593 | if (parent_flag) |
2594 | gfc_add_decl_to_parent_function (decl); | |
2595 | else | |
2596 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2597 | } |
2598 | ||
c750cc52 | 2599 | if (parent_flag) |
2600 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2601 | else | |
2602 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2603 | |
2604 | return decl; | |
2605 | } | |
2606 | ||
2607 | ||
2608 | /* Builds a function decl. The remaining parameters are the types of the | |
2609 | function arguments. Negative nargs indicates a varargs function. */ | |
2610 | ||
8ce86007 | 2611 | static tree |
2612 | build_library_function_decl_1 (tree name, const char *spec, | |
2613 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2614 | { |
5edc3af9 | 2615 | VEC(tree,gc) *arglist; |
4ee9c684 | 2616 | tree fntype; |
2617 | tree fndecl; | |
4ee9c684 | 2618 | int n; |
2619 | ||
2620 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2621 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2622 | |
4ee9c684 | 2623 | /* Create a list of the argument types. */ |
5edc3af9 | 2624 | arglist = VEC_alloc (tree, gc, abs (nargs)); |
2625 | for (n = abs (nargs); n > 0; n--) | |
4ee9c684 | 2626 | { |
5edc3af9 | 2627 | tree argtype = va_arg (p, tree); |
2628 | VEC_quick_push (tree, arglist, argtype); | |
4ee9c684 | 2629 | } |
2630 | ||
2631 | /* Build the function type and decl. */ | |
5edc3af9 | 2632 | if (nargs >= 0) |
2633 | fntype = build_function_type_vec (rettype, arglist); | |
2634 | else | |
2635 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2636 | if (spec) |
2637 | { | |
2638 | tree attr_args = build_tree_list (NULL_TREE, | |
2639 | build_string (strlen (spec), spec)); | |
2640 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2641 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2642 | fntype = build_type_attribute_variant (fntype, attrs); | |
2643 | } | |
e60a6f7b | 2644 | fndecl = build_decl (input_location, |
2645 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2646 | |
2647 | /* Mark this decl as external. */ | |
2648 | DECL_EXTERNAL (fndecl) = 1; | |
2649 | TREE_PUBLIC (fndecl) = 1; | |
2650 | ||
4ee9c684 | 2651 | pushdecl (fndecl); |
2652 | ||
b2c4af5e | 2653 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2654 | |
2655 | return fndecl; | |
2656 | } | |
2657 | ||
8ce86007 | 2658 | /* Builds a function decl. The remaining parameters are the types of the |
2659 | function arguments. Negative nargs indicates a varargs function. */ | |
2660 | ||
2661 | tree | |
2662 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2663 | { | |
2664 | tree ret; | |
2665 | va_list args; | |
2666 | va_start (args, nargs); | |
2667 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2668 | va_end (args); | |
2669 | return ret; | |
2670 | } | |
2671 | ||
2672 | /* Builds a function decl. The remaining parameters are the types of the | |
2673 | function arguments. Negative nargs indicates a varargs function. | |
2674 | The SPEC parameter specifies the function argument and return type | |
2675 | specification according to the fnspec function type attribute. */ | |
2676 | ||
4bf69bc3 | 2677 | tree |
8ce86007 | 2678 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2679 | tree rettype, int nargs, ...) | |
2680 | { | |
2681 | tree ret; | |
2682 | va_list args; | |
2683 | va_start (args, nargs); | |
2684 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2685 | va_end (args); | |
2686 | return ret; | |
2687 | } | |
2688 | ||
4ee9c684 | 2689 | static void |
2690 | gfc_build_intrinsic_function_decls (void) | |
2691 | { | |
90ba9145 | 2692 | tree gfc_int4_type_node = gfc_get_int_type (4); |
2693 | tree gfc_int8_type_node = gfc_get_int_type (8); | |
920e54ef | 2694 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 2695 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 2696 | tree pchar1_type_node = gfc_get_pchar_type (1); |
2697 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 2698 | |
4ee9c684 | 2699 | /* String functions. */ |
241ecdc7 | 2700 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
2701 | get_identifier (PREFIX("compare_string")), "..R.R", | |
2702 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
2703 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2704 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 2705 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 2706 | |
2707 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
2708 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
2709 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
2710 | gfc_charlen_type_node, pchar1_type_node, | |
2711 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 2712 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 2713 | |
2714 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
2715 | get_identifier (PREFIX("string_len_trim")), "..R", | |
2716 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2717 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 2718 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 2719 | |
2720 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
2721 | get_identifier (PREFIX("string_index")), "..R.R.", | |
2722 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2723 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2724 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 2725 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 2726 | |
2727 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
2728 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
2729 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2730 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2731 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 2732 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 2733 | |
2734 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
2735 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
2736 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2737 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2738 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 2739 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 2740 | |
2741 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
2742 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
2743 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2744 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
2745 | pchar1_type_node); | |
2746 | ||
2747 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
2748 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
2749 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2750 | build_pointer_type (pchar1_type_node), integer_type_node, | |
2751 | integer_type_node); | |
2752 | ||
2753 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
2754 | get_identifier (PREFIX("adjustl")), ".W.R", | |
2755 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2756 | pchar1_type_node); | |
bc351485 | 2757 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 2758 | |
2759 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
2760 | get_identifier (PREFIX("adjustr")), ".W.R", | |
2761 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2762 | pchar1_type_node); | |
bc351485 | 2763 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 2764 | |
2765 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
2766 | get_identifier (PREFIX("select_string")), ".R.R.", | |
2767 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2768 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 2769 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 2770 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 2771 | |
2772 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2773 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
2774 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
2775 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2776 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 2777 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 2778 | |
2779 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2780 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
2781 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
2782 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
2783 | pchar4_type_node); | |
bc351485 | 2784 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 2785 | |
2786 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2787 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
2788 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2789 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 2790 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 2791 | |
2792 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
2793 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
2794 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2795 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2796 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 2797 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 2798 | |
2799 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
2800 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
2801 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2802 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2803 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 2804 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 2805 | |
2806 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
2807 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
2808 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2809 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2810 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 2811 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 2812 | |
2813 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2814 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
2815 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2816 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
2817 | pchar4_type_node); | |
2818 | ||
2819 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
2820 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
2821 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2822 | build_pointer_type (pchar4_type_node), integer_type_node, | |
2823 | integer_type_node); | |
2824 | ||
2825 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
2826 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
2827 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2828 | pchar4_type_node); | |
bc351485 | 2829 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 2830 | |
2831 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
2832 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
2833 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2834 | pchar4_type_node); | |
bc351485 | 2835 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 2836 | |
2837 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2838 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
2839 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2840 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 2841 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 2842 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 2843 | |
2844 | ||
2845 | /* Conversion between character kinds. */ | |
2846 | ||
241ecdc7 | 2847 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
2848 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
2849 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
2850 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 2851 | |
241ecdc7 | 2852 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
2853 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
2854 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
2855 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 2856 | |
40b806de | 2857 | /* Misc. functions. */ |
5fcc6ec2 | 2858 | |
241ecdc7 | 2859 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
2860 | get_identifier (PREFIX("ttynam")), ".W", | |
2861 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2862 | integer_type_node); | |
2863 | ||
2864 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
2865 | get_identifier (PREFIX("fdate")), ".W", | |
2866 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
2867 | ||
2868 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
2869 | get_identifier (PREFIX("ctime")), ".W", | |
2870 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2871 | gfc_int8_type_node); | |
2872 | ||
2873 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
2874 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
2875 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 2876 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 2877 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 2878 | |
2879 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
2880 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
2881 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 2882 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 2883 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 2884 | |
2885 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
2886 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
2887 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
2888 | pvoid_type_node); | |
537824d1 | 2889 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 2890 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 2891 | |
4ee9c684 | 2892 | /* Power functions. */ |
76834664 | 2893 | { |
920e54ef | 2894 | tree ctype, rtype, itype, jtype; |
2895 | int rkind, ikind, jkind; | |
2896 | #define NIKINDS 3 | |
2897 | #define NRKINDS 4 | |
2898 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
2899 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
2900 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
2901 | ||
2902 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 2903 | { |
920e54ef | 2904 | itype = gfc_get_int_type (ikinds[ikind]); |
2905 | ||
2906 | for (jkind=0; jkind < NIKINDS; jkind++) | |
2907 | { | |
2908 | jtype = gfc_get_int_type (ikinds[jkind]); | |
2909 | if (itype && jtype) | |
2910 | { | |
2911 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
2912 | ikinds[jkind]); | |
2913 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
2914 | gfc_build_library_function_decl (get_identifier (name), | |
2915 | jtype, 2, jtype, itype); | |
2177d98b | 2916 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 2917 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 2918 | } |
2919 | } | |
2920 | ||
2921 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 2922 | { |
920e54ef | 2923 | rtype = gfc_get_real_type (rkinds[rkind]); |
2924 | if (rtype && itype) | |
2925 | { | |
2926 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
2927 | ikinds[ikind]); | |
2928 | gfor_fndecl_math_powi[rkind][ikind].real = | |
2929 | gfc_build_library_function_decl (get_identifier (name), | |
2930 | rtype, 2, rtype, itype); | |
2177d98b | 2931 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 2932 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 2933 | } |
2934 | ||
2935 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
2936 | if (ctype && itype) | |
2937 | { | |
2938 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
2939 | ikinds[ikind]); | |
2940 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
2941 | gfc_build_library_function_decl (get_identifier (name), | |
2942 | ctype, 2,ctype, itype); | |
2177d98b | 2943 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 2944 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 2945 | } |
76834664 | 2946 | } |
2947 | } | |
920e54ef | 2948 | #undef NIKINDS |
2949 | #undef NRKINDS | |
76834664 | 2950 | } |
2951 | ||
241ecdc7 | 2952 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
2953 | get_identifier (PREFIX("ishftc4")), | |
2954 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
2955 | gfc_int4_type_node); | |
bc351485 | 2956 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
2957 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
241ecdc7 | 2958 | |
2959 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( | |
2960 | get_identifier (PREFIX("ishftc8")), | |
2961 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
2962 | gfc_int4_type_node); | |
bc351485 | 2963 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
2964 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 2965 | |
920e54ef | 2966 | if (gfc_int16_type_node) |
bc351485 | 2967 | { |
2968 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 2969 | get_identifier (PREFIX("ishftc16")), |
2970 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
2971 | gfc_int4_type_node); | |
bc351485 | 2972 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
2973 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
2974 | } | |
920e54ef | 2975 | |
4e8e57b0 | 2976 | /* BLAS functions. */ |
2977 | { | |
36c921b9 | 2978 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 2979 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
2980 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
2981 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
2982 | tree pz = build_pointer_type | |
2983 | (gfc_get_complex_type (gfc_default_double_kind)); | |
2984 | ||
2985 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
2986 | (get_identifier | |
2987 | (gfc_option.flag_underscoring ? "sgemm_" | |
2988 | : "sgemm"), | |
2989 | void_type_node, 15, pchar_type_node, | |
2990 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 2991 | ps, pint, ps, ps, pint, integer_type_node, |
2992 | integer_type_node); | |
4e8e57b0 | 2993 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
2994 | (get_identifier | |
2995 | (gfc_option.flag_underscoring ? "dgemm_" | |
2996 | : "dgemm"), | |
2997 | void_type_node, 15, pchar_type_node, | |
2998 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 2999 | pd, pint, pd, pd, pint, integer_type_node, |
3000 | integer_type_node); | |
4e8e57b0 | 3001 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3002 | (get_identifier | |
3003 | (gfc_option.flag_underscoring ? "cgemm_" | |
3004 | : "cgemm"), | |
3005 | void_type_node, 15, pchar_type_node, | |
3006 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3007 | pc, pint, pc, pc, pint, integer_type_node, |
3008 | integer_type_node); | |
4e8e57b0 | 3009 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3010 | (get_identifier | |
3011 | (gfc_option.flag_underscoring ? "zgemm_" | |
3012 | : "zgemm"), | |
3013 | void_type_node, 15, pchar_type_node, | |
3014 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3015 | pz, pint, pz, pz, pint, integer_type_node, |
3016 | integer_type_node); | |
4e8e57b0 | 3017 | } |
3018 | ||
4ee9c684 | 3019 | /* Other functions. */ |
241ecdc7 | 3020 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3021 | get_identifier (PREFIX("size0")), ".R", | |
3022 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3023 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3024 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3025 | |
3026 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3027 | get_identifier (PREFIX("size1")), ".R", | |
3028 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3029 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3030 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3031 | |
3032 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3033 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3034 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3035 | } |
3036 | ||
3037 | ||
3038 | /* Make prototypes for runtime library functions. */ | |
3039 | ||
3040 | void | |
3041 | gfc_build_builtin_function_decls (void) | |
3042 | { | |
90ba9145 | 3043 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3044 | |
241ecdc7 | 3045 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3046 | get_identifier (PREFIX("stop_numeric")), | |
3047 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3048 | /* STOP doesn't return. */ |
98ccec97 | 3049 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3050 | ||
dff2ea5f | 3051 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3052 | get_identifier (PREFIX("stop_numeric_f08")), | |
3053 | void_type_node, 1, gfc_int4_type_node); | |
3054 | /* STOP doesn't return. */ | |
3055 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3056 | ||
241ecdc7 | 3057 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3058 | get_identifier (PREFIX("stop_string")), ".R.", | |
3059 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3060 | /* STOP doesn't return. */ |
241ecdc7 | 3061 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3062 | |
241ecdc7 | 3063 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3064 | get_identifier (PREFIX("error_stop_numeric")), | |
3065 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3066 | /* ERROR STOP doesn't return. */ |
3067 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3068 | ||
241ecdc7 | 3069 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3070 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3071 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3072 | /* ERROR STOP doesn't return. */ |
3073 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3074 | ||
241ecdc7 | 3075 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3076 | get_identifier (PREFIX("pause_numeric")), | |
3077 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3078 | |
241ecdc7 | 3079 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3080 | get_identifier (PREFIX("pause_string")), ".R.", | |
3081 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3082 | |
241ecdc7 | 3083 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3084 | get_identifier (PREFIX("runtime_error")), ".R", | |
3085 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3086 | /* The runtime_error function does not return. */ |
3087 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3088 | |
241ecdc7 | 3089 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3090 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3091 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3092 | /* The runtime_error_at function does not return. */ |
3093 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
3094 | ||
241ecdc7 | 3095 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3096 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3097 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3098 | ||
3099 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3100 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3101 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3102 | pchar_type_node); | |
3103 | ||
3104 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3105 | get_identifier (PREFIX("os_error")), ".R", | |
3106 | void_type_node, 1, pchar_type_node); | |
9915365e | 3107 | /* The runtime_error function does not return. */ |
3108 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3109 | ||
241ecdc7 | 3110 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3111 | get_identifier (PREFIX("set_args")), | |
3112 | void_type_node, 2, integer_type_node, | |
3113 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3114 | |
241ecdc7 | 3115 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3116 | get_identifier (PREFIX("set_fpe")), | |
3117 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3118 | |
56c7c2d7 | 3119 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3120 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3121 | get_identifier (PREFIX("set_options")), "..R", | |
3122 | void_type_node, 2, integer_type_node, | |
3123 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3124 | |
241ecdc7 | 3125 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3126 | get_identifier (PREFIX("set_convert")), | |
3127 | void_type_node, 1, integer_type_node); | |
15774a8b | 3128 | |
241ecdc7 | 3129 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3130 | get_identifier (PREFIX("set_record_marker")), | |
3131 | void_type_node, 1, integer_type_node); | |
f23886ab | 3132 | |
241ecdc7 | 3133 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3134 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3135 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3136 | |
8ce86007 | 3137 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3138 | get_identifier (PREFIX("internal_pack")), ".r", |
3139 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3140 | |
8ce86007 | 3141 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3142 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3143 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3144 | ||
3145 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3146 | get_identifier (PREFIX("associated")), ".RR", | |
3147 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3148 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3149 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3150 | |
70b5944a | 3151 | /* Coarray library calls. */ |
3152 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
3153 | { | |
3154 | tree pint_type, pppchar_type; | |
3155 | ||
3156 | pint_type = build_pointer_type (integer_type_node); | |
3157 | pppchar_type | |
3158 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3159 | ||
3160 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3161 | get_identifier (PREFIX("caf_init")), void_type_node, | |
3162 | 4, pint_type, pppchar_type, pint_type, pint_type); | |
3163 | ||
3164 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3165 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3166 | ||
a961ca30 | 3167 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3168 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3169 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3170 | pchar_type_node, integer_type_node); |
3171 | ||
3172 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3173 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3174 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3175 | |
70b5944a | 3176 | gfor_fndecl_caf_critical = gfc_build_library_function_decl ( |
3177 | get_identifier (PREFIX("caf_critical")), void_type_node, 0); | |
3178 | ||
3179 | gfor_fndecl_caf_end_critical = gfc_build_library_function_decl ( | |
3180 | get_identifier (PREFIX("caf_end_critical")), void_type_node, 0); | |
3181 | ||
3182 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3183 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
3184 | 3, pint_type, build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3185 | |
3186 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3187 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3188 | 5, integer_type_node, pint_type, pint_type, | |
3189 | build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3190 | |
3191 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3192 | get_identifier (PREFIX("caf_error_stop")), | |
3193 | void_type_node, 1, gfc_int4_type_node); | |
3194 | /* CAF's ERROR STOP doesn't return. */ | |
3195 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3196 | ||
3197 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3198 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3199 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3200 | /* CAF's ERROR STOP doesn't return. */ | |
3201 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
3202 | } | |
3203 | ||
4ee9c684 | 3204 | gfc_build_intrinsic_function_decls (); |
3205 | gfc_build_intrinsic_lib_fndecls (); | |
3206 | gfc_build_io_library_fndecls (); | |
3207 | } | |
3208 | ||
3209 | ||
231e961a | 3210 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3211 | |
c5faa799 | 3212 | static void |
3213 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3214 | gfc_wrapped_block *block) | |
4ee9c684 | 3215 | { |
c5faa799 | 3216 | stmtblock_t init; |
4ee9c684 | 3217 | |
b9c7fce7 | 3218 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3219 | |
c5faa799 | 3220 | gfc_start_block (&init); |
4ee9c684 | 3221 | |
3222 | /* Evaluate the string length expression. */ | |
c5faa799 | 3223 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3224 | |
c5faa799 | 3225 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3226 | |
c5faa799 | 3227 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3228 | } |
3229 | ||
3230 | ||
3231 | /* Allocate and cleanup an automatic character variable. */ | |
3232 | ||
c5faa799 | 3233 | static void |
3234 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3235 | { |
c5faa799 | 3236 | stmtblock_t init; |
4ee9c684 | 3237 | tree decl; |
4ee9c684 | 3238 | tree tmp; |
3239 | ||
22d678e8 | 3240 | gcc_assert (sym->backend_decl); |
eeebe20b | 3241 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3242 | |
3714c8b6 | 3243 | gfc_init_block (&init); |
4ee9c684 | 3244 | |
3245 | /* Evaluate the string length expression. */ | |
c5faa799 | 3246 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3247 | |
c5faa799 | 3248 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3249 | |
4ee9c684 | 3250 | decl = sym->backend_decl; |
3251 | ||
afcf285e | 3252 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3253 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3254 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3255 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3256 | |
c5faa799 | 3257 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3258 | } |
3259 | ||
c8f1568f | 3260 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3261 | ||
c5faa799 | 3262 | static void |
3263 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3264 | { |
c5faa799 | 3265 | stmtblock_t init; |
c8f1568f | 3266 | |
3267 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3268 | gfc_start_block (&init); |
c8f1568f | 3269 | |
3270 | /* Set the initial value to length. See the comments in | |
3271 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3272 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3273 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3274 | |
c5faa799 | 3275 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3276 | } |
3277 | ||
d4163395 | 3278 | static void |
3279 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3280 | { | |
3281 | tree t = *tp, var, val; | |
3282 | ||
3283 | if (t == NULL || t == error_mark_node) | |
3284 | return; | |
3285 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3286 | return; | |
3287 | ||
3288 | if (TREE_CODE (t) == SAVE_EXPR) | |
3289 | { | |
3290 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3291 | { | |
3292 | *tp = TREE_OPERAND (t, 0); | |
3293 | return; | |
3294 | } | |
3295 | val = TREE_OPERAND (t, 0); | |
3296 | } | |
3297 | else | |
3298 | val = t; | |
3299 | ||
3300 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3301 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3302 | gfc_add_modify (body, var, val); |
d4163395 | 3303 | if (TREE_CODE (t) == SAVE_EXPR) |
3304 | TREE_OPERAND (t, 0) = var; | |
3305 | *tp = var; | |
3306 | } | |
3307 | ||
3308 | static void | |
3309 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3310 | { | |
3311 | tree t; | |
3312 | ||
3313 | if (type == NULL || type == error_mark_node) | |
3314 | return; | |
3315 | ||
3316 | type = TYPE_MAIN_VARIANT (type); | |
3317 | ||
3318 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3319 | { | |
3320 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3321 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3322 | ||
3323 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3324 | { | |
3325 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3326 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3327 | } | |
3328 | } | |
3329 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3330 | { | |
3331 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3332 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3333 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3334 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3335 | ||
3336 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3337 | { | |
3338 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3339 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3340 | } | |
3341 | } | |
3342 | } | |
3343 | ||
3344 | /* Make sure all type sizes and array domains are either constant, | |
3345 | or variable or parameter decls. This is a simplified variant | |
3346 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3347 | variables in the expressions have been gimplified yet. | |
3348 | As type sizes and domains for various variable length arrays | |
3349 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3350 | time, without this routine gimplify_type_sizes in the middle-end | |
3351 | could result in the type sizes being gimplified earlier than where | |
3352 | those variables are initialized. */ | |
3353 | ||
3354 | void | |
3355 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3356 | { | |
3357 | tree type = TREE_TYPE (sym->backend_decl); | |
3358 | ||
3359 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3360 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3361 | { | |
3362 | if (! current_fake_result_decl) | |
3363 | return; | |
3364 | ||
3365 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3366 | } | |
3367 | ||
3368 | while (POINTER_TYPE_P (type)) | |
3369 | type = TREE_TYPE (type); | |
3370 | ||
3371 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3372 | { | |
3373 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3374 | ||
3375 | while (POINTER_TYPE_P (etype)) | |
3376 | etype = TREE_TYPE (etype); | |
3377 | ||
3378 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3379 | } | |
3380 | ||
3381 | gfc_trans_vla_type_sizes_1 (type, body); | |
3382 | } | |
3383 | ||
4ee9c684 | 3384 | |
f0d4969f | 3385 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3386 | and using trans_assignment to do the work. Set dealloc to false |
3387 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3388 | void |
3389 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3390 | { |
f0d4969f | 3391 | gfc_expr *e; |
87114d2e | 3392 | tree tmp; |
3393 | tree present; | |
3394 | ||
c5faa799 | 3395 | gcc_assert (block); |
3396 | ||
f0d4969f | 3397 | gcc_assert (!sym->attr.allocatable); |
3398 | gfc_set_sym_referenced (sym); | |
3399 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3400 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3401 | if (sym->attr.dummy && (sym->attr.optional |
3402 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3403 | { |
f0d4969f | 3404 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3405 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3406 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3407 | } |
c5faa799 | 3408 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3409 | gfc_free_expr (e); |
87114d2e | 3410 | } |
3411 | ||
3412 | ||
8714fc76 | 3413 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3414 | them their default initializer, if they do not have allocatable | |
3415 | components, they have their allocatable components deallocated. */ | |
3416 | ||
c5faa799 | 3417 | static void |
3418 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3419 | { |
c5faa799 | 3420 | stmtblock_t init; |
f0d4969f | 3421 | gfc_formal_arglist *f; |
8714fc76 | 3422 | tree tmp; |
5907c3ea | 3423 | tree present; |
f0d4969f | 3424 | |
c5faa799 | 3425 | gfc_init_block (&init); |
f0d4969f | 3426 | for (f = proc_sym->formal; f; f = f->next) |
3427 | if (f->sym && f->sym->attr.intent == INTENT_OUT | |
c49db15e | 3428 | && !f->sym->attr.pointer |
3429 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3430 | { |
c38054a8 | 3431 | if (f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) |
8714fc76 | 3432 | { |
eeebe20b | 3433 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, |
8714fc76 | 3434 | f->sym->backend_decl, |
3435 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3436 | |
c38054a8 | 3437 | if (f->sym->attr.optional |
3438 | || f->sym->ns->proc_name->attr.entry_master) | |
3439 | { | |
3440 | present = gfc_conv_expr_present (f->sym); | |
2be9d8f1 | 3441 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), |
3442 | present, tmp, | |
3443 | build_empty_stmt (input_location)); | |
c38054a8 | 3444 | } |
5907c3ea | 3445 | |
c5faa799 | 3446 | gfc_add_expr_to_block (&init, tmp); |
8714fc76 | 3447 | } |
c38054a8 | 3448 | else if (f->sym->value) |
c5faa799 | 3449 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3450 | } |
c56d57d6 | 3451 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3452 | && f->sym->ts.type == BT_CLASS | |
3453 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
3454 | && CLASS_DATA (f->sym)->ts.u.derived->attr.alloc_comp) | |
3455 | { | |
3456 | tree decl = build_fold_indirect_ref_loc (input_location, | |
3457 | f->sym->backend_decl); | |
3458 | tmp = CLASS_DATA (f->sym)->backend_decl; | |
3459 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
3460 | TREE_TYPE (tmp), decl, tmp, NULL_TREE); | |
3461 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3462 | tmp = gfc_deallocate_alloc_comp (CLASS_DATA (f->sym)->ts.u.derived, | |
3463 | tmp, | |
3464 | CLASS_DATA (f->sym)->as ? | |
3465 | CLASS_DATA (f->sym)->as->rank : 0); | |
3466 | ||
3467 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3468 | { | |
3469 | present = gfc_conv_expr_present (f->sym); | |
3470 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3471 | present, tmp, | |
3472 | build_empty_stmt (input_location)); | |
3473 | } | |
3474 | ||
3475 | gfc_add_expr_to_block (&init, tmp); | |
3476 | } | |
f0d4969f | 3477 | |
c5faa799 | 3478 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3479 | } |
3480 | ||
87114d2e | 3481 | |
4ee9c684 | 3482 | /* Generate function entry and exit code, and add it to the function body. |
3483 | This includes: | |
f888a3fb | 3484 | Allocation and initialization of array variables. |
4ee9c684 | 3485 | Allocation of character string variables. |
c8f1568f | 3486 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3487 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3488 | Initialization of ASSOCIATE names. |
0a96a7cc | 3489 | Automatic deallocation. */ |
4ee9c684 | 3490 | |
89ac8ba1 | 3491 | void |
3492 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3493 | { |
3494 | locus loc; | |
3495 | gfc_symbol *sym; | |
d4163395 | 3496 | gfc_formal_arglist *f; |
c5faa799 | 3497 | stmtblock_t tmpblock; |
25dd7350 | 3498 | bool seen_trans_deferred_array = false; |
617125a6 | 3499 | tree tmp = NULL; |
3500 | gfc_expr *e; | |
3501 | gfc_se se; | |
3502 | stmtblock_t init; | |
4ee9c684 | 3503 | |
3504 | /* Deal with implicit return variables. Explicit return variables will | |
3505 | already have been added. */ | |
3506 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3507 | { | |
3508 | if (!current_fake_result_decl) | |
3509 | { | |
c6871095 | 3510 | gfc_entry_list *el = NULL; |
3511 | if (proc_sym->attr.entry_master) | |
3512 | { | |
3513 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3514 | if (el->sym != el->sym->result) | |
3515 | break; | |
3516 | } | |
fa7b6574 | 3517 | /* TODO: move to the appropriate place in resolve.c. */ |
3518 | if (warn_return_type && el == NULL) | |
3519 | gfc_warning ("Return value of function '%s' at %L not set", | |
3520 | proc_sym->name, &proc_sym->declared_at); | |
4ee9c684 | 3521 | } |
c6871095 | 3522 | else if (proc_sym->as) |
4ee9c684 | 3523 | { |
d4163395 | 3524 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3525 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3526 | |
3527 | /* An automatic character length, pointer array result. */ | |
3528 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3529 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3530 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3531 | } |
3532 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3533 | { | |
617125a6 | 3534 | if (proc_sym->ts.deferred) |
3535 | { | |
3536 | tmp = NULL; | |
da2c4122 | 3537 | gfc_save_backend_locus (&loc); |
3538 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3539 | gfc_start_block (&init); |
3540 | /* Zero the string length on entry. */ | |
3541 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3542 | build_int_cst (gfc_charlen_type_node, 0)); | |
3543 | /* Null the pointer. */ | |
3544 | e = gfc_lval_expr_from_sym (proc_sym); | |
3545 | gfc_init_se (&se, NULL); | |
3546 | se.want_pointer = 1; | |
3547 | gfc_conv_expr (&se, e); | |
3548 | gfc_free_expr (e); | |
3549 | tmp = se.expr; | |
3550 | gfc_add_modify (&init, tmp, | |
3551 | fold_convert (TREE_TYPE (se.expr), | |
3552 | null_pointer_node)); | |
da2c4122 | 3553 | gfc_restore_backend_locus (&loc); |
617125a6 | 3554 | |
3555 | /* Pass back the string length on exit. */ | |
3556 | tmp = proc_sym->ts.u.cl->passed_length; | |
3557 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3558 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3559 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3560 | gfc_charlen_type_node, tmp, | |
3561 | proc_sym->ts.u.cl->backend_decl); | |
3562 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3563 | } | |
3564 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 3565 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3566 | } |
3567 | else | |
bdaed7d2 | 3568 | gcc_assert (gfc_option.flag_f2c |
3569 | && proc_sym->ts.type == BT_COMPLEX); | |
4ee9c684 | 3570 | } |
3571 | ||
87114d2e | 3572 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
3573 | should be done here so that the offsets and lbounds of arrays | |
3574 | are available. */ | |
da2c4122 | 3575 | gfc_save_backend_locus (&loc); |
3576 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 3577 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 3578 | gfc_restore_backend_locus (&loc); |
87114d2e | 3579 | |
4ee9c684 | 3580 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
3581 | { | |
2294b616 | 3582 | bool sym_has_alloc_comp = (sym->ts.type == BT_DERIVED) |
eeebe20b | 3583 | && sym->ts.u.derived->attr.alloc_comp; |
8f3f9eab | 3584 | if (sym->assoc) |
3c82e013 | 3585 | continue; |
3586 | ||
a56d63bc | 3587 | if (sym->attr.subref_array_pointer |
3588 | && GFC_DECL_SPAN (sym->backend_decl) | |
3589 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
3590 | { | |
3591 | gfc_init_block (&tmpblock); | |
3592 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
3593 | build_int_cst (gfc_array_index_type, 0)); | |
3594 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3595 | NULL_TREE); | |
3596 | } | |
3597 | ||
7a777e43 | 3598 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 3599 | { |
f7a6fca4 | 3600 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ |
3601 | array_type tmp = sym->as->type; | |
3602 | if (tmp == AS_ASSUMED_SIZE && sym->as->cp_was_assumed) | |
3603 | tmp = AS_EXPLICIT; | |
3604 | switch (tmp) | |
4ee9c684 | 3605 | { |
3606 | case AS_EXPLICIT: | |
3607 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3608 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3609 | else if (sym->attr.pointer || sym->attr.allocatable) |
3610 | { | |
3611 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 3612 | { |
3613 | gfc_save_backend_locus (&loc); | |
3614 | gfc_set_backend_locus (&sym->declared_at); | |
3615 | gfc_trans_static_array_pointer (sym); | |
3616 | gfc_restore_backend_locus (&loc); | |
3617 | } | |
4ee9c684 | 3618 | else |
25dd7350 | 3619 | { |
3620 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3621 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3622 | } |
4ee9c684 | 3623 | } |
7c7db7f6 | 3624 | else if (sym->attr.codimension && TREE_STATIC (sym->backend_decl)) |
3625 | { | |
3626 | gfc_init_block (&tmpblock); | |
3627 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
3628 | &tmpblock, sym); | |
3629 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3630 | NULL_TREE); | |
3631 | continue; | |
3632 | } | |
a961ca30 | 3633 | else if (gfc_option.coarray != GFC_FCOARRAY_LIB) |
4ee9c684 | 3634 | { |
da2c4122 | 3635 | gfc_save_backend_locus (&loc); |
3636 | gfc_set_backend_locus (&sym->declared_at); | |
3637 | ||
25dd7350 | 3638 | if (sym_has_alloc_comp) |
3639 | { | |
3640 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3641 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3642 | } |
f0d4969f | 3643 | else if (sym->ts.type == BT_DERIVED |
3644 | && sym->value | |
3645 | && !sym->attr.data | |
3646 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3647 | { |
3648 | gfc_start_block (&tmpblock); | |
3649 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3650 | gfc_add_init_cleanup (block, |
c5faa799 | 3651 | gfc_finish_block (&tmpblock), |
3652 | NULL_TREE); | |
3653 | } | |
25dd7350 | 3654 | |
c5faa799 | 3655 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 3656 | sym, block); |
4671339c | 3657 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3658 | } |
3659 | break; | |
3660 | ||
3661 | case AS_ASSUMED_SIZE: | |
3662 | /* Must be a dummy parameter. */ | |
452695a8 | 3663 | gcc_assert (sym->attr.dummy || sym->as->cp_was_assumed); |
4ee9c684 | 3664 | |
3665 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 3666 | if (sym->attr.dummy) |
89ac8ba1 | 3667 | gfc_trans_g77_array (sym, block); |
c5faa799 | 3668 | break; |
4ee9c684 | 3669 | |
3670 | case AS_ASSUMED_SHAPE: | |
3671 | /* Must be a dummy parameter. */ | |
22d678e8 | 3672 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 3673 | |
89ac8ba1 | 3674 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3675 | break; |
3676 | ||
3677 | case AS_DEFERRED: | |
25dd7350 | 3678 | seen_trans_deferred_array = true; |
89ac8ba1 | 3679 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3680 | break; |
3681 | ||
3682 | default: | |
22d678e8 | 3683 | gcc_unreachable (); |
4ee9c684 | 3684 | } |
25dd7350 | 3685 | if (sym_has_alloc_comp && !seen_trans_deferred_array) |
89ac8ba1 | 3686 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3687 | } |
fd23cc08 | 3688 | else if ((!sym->attr.dummy || sym->ts.deferred) |
3689 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 3690 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 3691 | continue; |
617125a6 | 3692 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 3693 | && (sym->attr.allocatable |
3694 | || (sym->ts.type == BT_CLASS | |
3695 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 3696 | { |
908e9973 | 3697 | if (!sym->attr.save) |
3698 | { | |
d0d776fb | 3699 | tree descriptor = NULL_TREE; |
3700 | ||
908e9973 | 3701 | /* Nullify and automatic deallocation of allocatable |
3702 | scalars. */ | |
908e9973 | 3703 | e = gfc_lval_expr_from_sym (sym); |
3704 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 3705 | gfc_add_data_component (e); |
908e9973 | 3706 | |
3707 | gfc_init_se (&se, NULL); | |
fd23cc08 | 3708 | if (sym->ts.type != BT_CLASS |
3709 | || sym->ts.u.derived->attr.dimension | |
3710 | || sym->ts.u.derived->attr.codimension) | |
3711 | { | |
3712 | se.want_pointer = 1; | |
3713 | gfc_conv_expr (&se, e); | |
3714 | } | |
3715 | else if (sym->ts.type == BT_CLASS | |
3716 | && !CLASS_DATA (sym)->attr.dimension | |
3717 | && !CLASS_DATA (sym)->attr.codimension) | |
3718 | { | |
3719 | se.want_pointer = 1; | |
3720 | gfc_conv_expr (&se, e); | |
3721 | } | |
3722 | else | |
3723 | { | |
3724 | gfc_conv_expr (&se, e); | |
d0d776fb | 3725 | descriptor = se.expr; |
fd23cc08 | 3726 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
3727 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
3728 | } | |
908e9973 | 3729 | gfc_free_expr (e); |
3730 | ||
da2c4122 | 3731 | gfc_save_backend_locus (&loc); |
3732 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 3733 | gfc_start_block (&init); |
617125a6 | 3734 | |
3735 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3736 | { | |
3737 | /* Nullify when entering the scope. */ | |
3738 | gfc_add_modify (&init, se.expr, | |
3739 | fold_convert (TREE_TYPE (se.expr), | |
3740 | null_pointer_node)); | |
3741 | } | |
3742 | ||
3743 | if ((sym->attr.dummy ||sym->attr.result) | |
3744 | && sym->ts.type == BT_CHARACTER | |
3745 | && sym->ts.deferred) | |
3746 | { | |
3747 | /* Character length passed by reference. */ | |
3748 | tmp = sym->ts.u.cl->passed_length; | |
3749 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3750 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3751 | ||
3752 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3753 | /* Zero the string length when entering the scope. */ | |
3754 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
3755 | build_int_cst (gfc_charlen_type_node, 0)); | |
3756 | else | |
3757 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3758 | ||
da2c4122 | 3759 | gfc_restore_backend_locus (&loc); |
3760 | ||
617125a6 | 3761 | /* Pass the final character length back. */ |
3762 | if (sym->attr.intent != INTENT_IN) | |
3763 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3764 | gfc_charlen_type_node, tmp, | |
3765 | sym->ts.u.cl->backend_decl); | |
3766 | else | |
3767 | tmp = NULL_TREE; | |
3768 | } | |
da2c4122 | 3769 | else |
3770 | gfc_restore_backend_locus (&loc); | |
908e9973 | 3771 | |
3772 | /* Deallocate when leaving the scope. Nullifying is not | |
3773 | needed. */ | |
617125a6 | 3774 | if (!sym->attr.result && !sym->attr.dummy) |
d0d776fb | 3775 | { |
3776 | if (sym->ts.type == BT_CLASS | |
3777 | && CLASS_DATA (sym)->attr.codimension) | |
3778 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
3779 | NULL_TREE, NULL_TREE, | |
3780 | NULL_TREE, true, NULL, | |
3781 | true); | |
3782 | else | |
3783 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL, | |
3784 | true, NULL, | |
3785 | sym->ts); | |
3786 | } | |
afc44c79 | 3787 | if (sym->ts.type == BT_CLASS) |
3788 | { | |
3789 | /* Initialize _vptr to declared type. */ | |
3790 | gfc_symbol *vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
3791 | tree rhs; | |
da2c4122 | 3792 | |
3793 | gfc_save_backend_locus (&loc); | |
3794 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 3795 | e = gfc_lval_expr_from_sym (sym); |
3796 | gfc_add_vptr_component (e); | |
3797 | gfc_init_se (&se, NULL); | |
3798 | se.want_pointer = 1; | |
3799 | gfc_conv_expr (&se, e); | |
3800 | gfc_free_expr (e); | |
3801 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
3802 | gfc_get_symbol_decl (vtab)); | |
3803 | gfc_add_modify (&init, se.expr, rhs); | |
da2c4122 | 3804 | gfc_restore_backend_locus (&loc); |
afc44c79 | 3805 | } |
3806 | ||
89ac8ba1 | 3807 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 3808 | } |
0a96a7cc | 3809 | } |
617125a6 | 3810 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
3811 | { | |
3812 | tree tmp = NULL; | |
3813 | stmtblock_t init; | |
3814 | ||
3815 | /* If we get to here, all that should be left are pointers. */ | |
3816 | gcc_assert (sym->attr.pointer); | |
3817 | ||
3818 | if (sym->attr.dummy) | |
3819 | { | |
3820 | gfc_start_block (&init); | |
3821 | ||
3822 | /* Character length passed by reference. */ | |
3823 | tmp = sym->ts.u.cl->passed_length; | |
3824 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3825 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3826 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3827 | /* Pass the final character length back. */ | |
3828 | if (sym->attr.intent != INTENT_IN) | |
3829 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3830 | gfc_charlen_type_node, tmp, | |
3831 | sym->ts.u.cl->backend_decl); | |
3832 | else | |
3833 | tmp = NULL_TREE; | |
3834 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3835 | } | |
3836 | } | |
3e715c81 | 3837 | else if (sym->ts.deferred) |
3838 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
fabc1fc9 | 3839 | else if (sym_has_alloc_comp) |
89ac8ba1 | 3840 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3841 | else if (sym->ts.type == BT_CHARACTER) |
3842 | { | |
4671339c | 3843 | gfc_save_backend_locus (&loc); |
4ee9c684 | 3844 | gfc_set_backend_locus (&sym->declared_at); |
3845 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3846 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 3847 | else |
89ac8ba1 | 3848 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 3849 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3850 | } |
c8f1568f | 3851 | else if (sym->attr.assign) |
3852 | { | |
4671339c | 3853 | gfc_save_backend_locus (&loc); |
c8f1568f | 3854 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 3855 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 3856 | gfc_restore_backend_locus (&loc); |
c8f1568f | 3857 | } |
f0d4969f | 3858 | else if (sym->ts.type == BT_DERIVED |
3859 | && sym->value | |
3860 | && !sym->attr.data | |
3861 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3862 | { |
3863 | gfc_start_block (&tmpblock); | |
3864 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3865 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 3866 | NULL_TREE); |
3867 | } | |
4ee9c684 | 3868 | else |
22d678e8 | 3869 | gcc_unreachable (); |
4ee9c684 | 3870 | } |
3871 | ||
c5faa799 | 3872 | gfc_init_block (&tmpblock); |
d4163395 | 3873 | |
3874 | for (f = proc_sym->formal; f; f = f->next) | |
1e853e89 | 3875 | { |
3876 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
3877 | { | |
eeebe20b | 3878 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
3879 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 3880 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 3881 | } |
1e853e89 | 3882 | } |
d4163395 | 3883 | |
3884 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
3885 | && current_fake_result_decl != NULL) | |
3886 | { | |
eeebe20b | 3887 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
3888 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 3889 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 3890 | } |
3891 | ||
89ac8ba1 | 3892 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 3893 | } |
3894 | ||
df4d540f | 3895 | static GTY ((param_is (struct module_htab_entry))) htab_t module_htab; |
3896 | ||
3897 | /* Hash and equality functions for module_htab. */ | |
3898 | ||
3899 | static hashval_t | |
3900 | module_htab_do_hash (const void *x) | |
3901 | { | |
3902 | return htab_hash_string (((const struct module_htab_entry *)x)->name); | |
3903 | } | |
3904 | ||
3905 | static int | |
3906 | module_htab_eq (const void *x1, const void *x2) | |
3907 | { | |
3908 | return strcmp ((((const struct module_htab_entry *)x1)->name), | |
3909 | (const char *)x2) == 0; | |
3910 | } | |
3911 | ||
3912 | /* Hash and equality functions for module_htab's decls. */ | |
3913 | ||
3914 | static hashval_t | |
3915 | module_htab_decls_hash (const void *x) | |
3916 | { | |
3917 | const_tree t = (const_tree) x; | |
3918 | const_tree n = DECL_NAME (t); | |
3919 | if (n == NULL_TREE) | |
3920 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 3921 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 3922 | } |
3923 | ||
3924 | static int | |
3925 | module_htab_decls_eq (const void *x1, const void *x2) | |
3926 | { | |
3927 | const_tree t1 = (const_tree) x1; | |
3928 | const_tree n1 = DECL_NAME (t1); | |
3929 | if (n1 == NULL_TREE) | |
3930 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
3931 | return strcmp (IDENTIFIER_POINTER (n1), (const char *) x2) == 0; | |
3932 | } | |
3933 | ||
3934 | struct module_htab_entry * | |
3935 | gfc_find_module (const char *name) | |
3936 | { | |
3937 | void **slot; | |
3938 | ||
3939 | if (! module_htab) | |
3940 | module_htab = htab_create_ggc (10, module_htab_do_hash, | |
3941 | module_htab_eq, NULL); | |
3942 | ||
3943 | slot = htab_find_slot_with_hash (module_htab, name, | |
3944 | htab_hash_string (name), INSERT); | |
3945 | if (*slot == NULL) | |
3946 | { | |
ba72912a | 3947 | struct module_htab_entry *entry = ggc_alloc_cleared_module_htab_entry (); |
df4d540f | 3948 | |
3949 | entry->name = gfc_get_string (name); | |
3950 | entry->decls = htab_create_ggc (10, module_htab_decls_hash, | |
3951 | module_htab_decls_eq, NULL); | |
3952 | *slot = (void *) entry; | |
3953 | } | |
3954 | return (struct module_htab_entry *) *slot; | |
3955 | } | |
3956 | ||
3957 | void | |
3958 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
3959 | { | |
3960 | void **slot; | |
3961 | const char *name; | |
3962 | ||
3963 | if (DECL_NAME (decl)) | |
3964 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
3965 | else | |
3966 | { | |
3967 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
3968 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
3969 | } | |
3970 | slot = htab_find_slot_with_hash (entry->decls, name, | |
3971 | htab_hash_string (name), INSERT); | |
3972 | if (*slot == NULL) | |
3973 | *slot = (void *) decl; | |
3974 | } | |
3975 | ||
3976 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 3977 | |
3978 | /* Output an initialized decl for a module variable. */ | |
3979 | ||
3980 | static void | |
3981 | gfc_create_module_variable (gfc_symbol * sym) | |
3982 | { | |
3983 | tree decl; | |
4ee9c684 | 3984 | |
d77f260f | 3985 | /* Module functions with alternate entries are dealt with later and |
3986 | would get caught by the next condition. */ | |
3987 | if (sym->attr.entry) | |
3988 | return; | |
3989 | ||
c5d33754 | 3990 | /* Make sure we convert the types of the derived types from iso_c_binding |
3991 | into (void *). */ | |
3992 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
3993 | && sym->ts.type == BT_DERIVED) | |
3994 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
3995 | ||
df4d540f | 3996 | if (sym->attr.flavor == FL_DERIVED |
3997 | && sym->backend_decl | |
3998 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
3999 | { | |
4000 | decl = sym->backend_decl; | |
4001 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4002 | |
4003 | /* -fwhole-file mixes up the contexts so these asserts are unnecessary. */ | |
4004 | if (!(gfc_option.flag_whole_file && sym->attr.use_assoc)) | |
4005 | { | |
4006 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4007 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4008 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4009 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4010 | == sym->ns->proc_name->backend_decl); | |
4011 | } | |
df4d540f | 4012 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4013 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4014 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4015 | } | |
4016 | ||
cf269acc | 4017 | /* Only output variables, procedure pointers and array valued, |
4018 | or derived type, parameters. */ | |
4ee9c684 | 4019 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4020 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4021 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4022 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4023 | return; |
4024 | ||
df4d540f | 4025 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4026 | { | |
4027 | decl = sym->backend_decl; | |
16a40513 | 4028 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4029 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4030 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4031 | gfc_module_add_decl (cur_module, decl); | |
4032 | } | |
4033 | ||
d43a7f7f | 4034 | /* Don't generate variables from other modules. Variables from |
4035 | COMMONs will already have been generated. */ | |
4036 | if (sym->attr.use_assoc || sym->attr.in_common) | |
4ee9c684 | 4037 | return; |
4038 | ||
2b685f8e | 4039 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4040 | if (sym->backend_decl |
df4d540f | 4041 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4042 | return; | |
2b685f8e | 4043 | |
23d075f4 | 4044 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
4ee9c684 | 4045 | internal_error ("backend decl for module variable %s already exists", |
4046 | sym->name); | |
4047 | ||
4048 | /* We always want module variables to be created. */ | |
4049 | sym->attr.referenced = 1; | |
4050 | /* Create the decl. */ | |
4051 | decl = gfc_get_symbol_decl (sym); | |
4052 | ||
4ee9c684 | 4053 | /* Create the variable. */ |
4054 | pushdecl (decl); | |
df4d540f | 4055 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4056 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4057 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4058 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4059 | |
4060 | /* Also add length of strings. */ | |
4061 | if (sym->ts.type == BT_CHARACTER) | |
4062 | { | |
4063 | tree length; | |
4064 | ||
eeebe20b | 4065 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4066 | gcc_assert (length || sym->attr.proc_pointer); |
4067 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4068 | { |
4069 | pushdecl (length); | |
b2c4af5e | 4070 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4071 | } |
4072 | } | |
a961ca30 | 4073 | |
4074 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4075 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4076 | has_coarray_vars = true; | |
4ee9c684 | 4077 | } |
4078 | ||
51d9479b | 4079 | /* Emit debug information for USE statements. */ |
df4d540f | 4080 | |
4081 | static void | |
4082 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4083 | { | |
4084 | gfc_use_list *use_stmt; | |
4085 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4086 | { | |
4087 | struct module_htab_entry *entry | |
4088 | = gfc_find_module (use_stmt->module_name); | |
4089 | gfc_use_rename *rent; | |
4090 | ||
4091 | if (entry->namespace_decl == NULL) | |
4092 | { | |
4093 | entry->namespace_decl | |
e60a6f7b | 4094 | = build_decl (input_location, |
4095 | NAMESPACE_DECL, | |
df4d540f | 4096 | get_identifier (use_stmt->module_name), |
4097 | void_type_node); | |
4098 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4099 | } | |
51d9479b | 4100 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4101 | if (!use_stmt->only_flag) |
4102 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4103 | NULL_TREE, | |
4104 | ns->proc_name->backend_decl, | |
4105 | false); | |
4106 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4107 | { | |
4108 | tree decl, local_name; | |
4109 | void **slot; | |
4110 | ||
4111 | if (rent->op != INTRINSIC_NONE) | |
4112 | continue; | |
4113 | ||
4114 | slot = htab_find_slot_with_hash (entry->decls, rent->use_name, | |
4115 | htab_hash_string (rent->use_name), | |
4116 | INSERT); | |
4117 | if (*slot == NULL) | |
4118 | { | |
4119 | gfc_symtree *st; | |
4120 | ||
4121 | st = gfc_find_symtree (ns->sym_root, | |
4122 | rent->local_name[0] | |
4123 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4124 | |
4125 | /* The following can happen if a derived type is renamed. */ | |
4126 | if (!st) | |
4127 | { | |
4128 | char *name; | |
4129 | name = xstrdup (rent->local_name[0] | |
4130 | ? rent->local_name : rent->use_name); | |
4131 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4132 | st = gfc_find_symtree (ns->sym_root, name); | |
4133 | free (name); | |
4134 | gcc_assert (st); | |
4135 | } | |
857c96ba | 4136 | |
4137 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4138 | local symbol (see PR41062). */ | |
4139 | if (!st->n.sym->attr.use_assoc) | |
4140 | continue; | |
4141 | ||
51d9479b | 4142 | if (st->n.sym->backend_decl |
4143 | && DECL_P (st->n.sym->backend_decl) | |
4144 | && st->n.sym->module | |
4145 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4146 | { |
51d9479b | 4147 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4148 | || (TREE_CODE (st->n.sym->backend_decl) | |
4149 | != VAR_DECL)); | |
df4d540f | 4150 | decl = copy_node (st->n.sym->backend_decl); |
4151 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4152 | DECL_EXTERNAL (decl) = 1; | |
4153 | DECL_IGNORED_P (decl) = 0; | |
4154 | DECL_INITIAL (decl) = NULL_TREE; | |
4155 | } | |
4156 | else | |
4157 | { | |
4158 | *slot = error_mark_node; | |
4159 | htab_clear_slot (entry->decls, slot); | |
4160 | continue; | |
4161 | } | |
4162 | *slot = decl; | |
4163 | } | |
4164 | decl = (tree) *slot; | |
4165 | if (rent->local_name[0]) | |
4166 | local_name = get_identifier (rent->local_name); | |
4167 | else | |
4168 | local_name = NULL_TREE; | |
51d9479b | 4169 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4170 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4171 | ns->proc_name->backend_decl, | |
4172 | !use_stmt->only_flag); | |
4173 | } | |
4174 | } | |
4ee9c684 | 4175 | } |
4176 | ||
51d9479b | 4177 | |
2eb674c9 | 4178 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4179 | will handle. */ | |
4180 | ||
4181 | static bool | |
4182 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4183 | bool pointer) | |
4184 | { | |
4185 | gfc_constructor *c; | |
4186 | gfc_component *cm; | |
4187 | ||
4188 | if (pointer) | |
4189 | return true; | |
4190 | else if (array) | |
4191 | { | |
4192 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4193 | return true; | |
4194 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4195 | return check_constant_initializer (expr, ts, false, false); | |
4196 | else if (expr->expr_type != EXPR_ARRAY) | |
4197 | return false; | |
126387b5 | 4198 | for (c = gfc_constructor_first (expr->value.constructor); |
4199 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4200 | { |
4201 | if (c->iterator) | |
4202 | return false; | |
4203 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4204 | { | |
4205 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4206 | return false; | |
4207 | } | |
4208 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4209 | return false; | |
4210 | } | |
4211 | return true; | |
4212 | } | |
4213 | else switch (ts->type) | |
4214 | { | |
4215 | case BT_DERIVED: | |
4216 | if (expr->expr_type != EXPR_STRUCTURE) | |
4217 | return false; | |
eeebe20b | 4218 | cm = expr->ts.u.derived->components; |
126387b5 | 4219 | for (c = gfc_constructor_first (expr->value.constructor); |
4220 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4221 | { |
4222 | if (!c->expr || cm->attr.allocatable) | |
4223 | continue; | |
4224 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4225 | cm->attr.dimension, | |
4226 | cm->attr.pointer)) | |
4227 | return false; | |
4228 | } | |
4229 | return true; | |
4230 | default: | |
4231 | return expr->expr_type == EXPR_CONSTANT; | |
4232 | } | |
4233 | } | |
4234 | ||
4235 | /* Emit debug info for parameters and unreferenced variables with | |
4236 | initializers. */ | |
4237 | ||
4238 | static void | |
4239 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4240 | { | |
4241 | tree decl; | |
4242 | ||
4243 | if (sym->attr.flavor != FL_PARAMETER | |
4244 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4245 | return; | |
4246 | ||
4247 | if (sym->backend_decl != NULL | |
4248 | || sym->value == NULL | |
4249 | || sym->attr.use_assoc | |
4250 | || sym->attr.dummy | |
4251 | || sym->attr.result | |
4252 | || sym->attr.function | |
4253 | || sym->attr.intrinsic | |
4254 | || sym->attr.pointer | |
4255 | || sym->attr.allocatable | |
4256 | || sym->attr.cray_pointee | |
4257 | || sym->attr.threadprivate | |
4258 | || sym->attr.is_bind_c | |
4259 | || sym->attr.subref_array_pointer | |
4260 | || sym->attr.assign) | |
4261 | return; | |
4262 | ||
4263 | if (sym->ts.type == BT_CHARACTER) | |
4264 | { | |
eeebe20b | 4265 | gfc_conv_const_charlen (sym->ts.u.cl); |
4266 | if (sym->ts.u.cl->backend_decl == NULL | |
4267 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4268 | return; |
4269 | } | |
eeebe20b | 4270 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4271 | return; |
4272 | ||
4273 | if (sym->as) | |
4274 | { | |
4275 | int n; | |
4276 | ||
4277 | if (sym->as->type != AS_EXPLICIT) | |
4278 | return; | |
4279 | for (n = 0; n < sym->as->rank; n++) | |
4280 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4281 | || sym->as->upper[n] == NULL | |
4282 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4283 | return; | |
4284 | } | |
4285 | ||
4286 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4287 | sym->attr.dimension, false)) | |
4288 | return; | |
4289 | ||
a961ca30 | 4290 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
4291 | return; | |
4292 | ||
2eb674c9 | 4293 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4294 | decl = build_decl (input_location, |
4295 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4296 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4297 | if (sym->attr.flavor == FL_PARAMETER) | |
4298 | TREE_READONLY (decl) = 1; | |
4299 | gfc_set_decl_location (decl, &sym->declared_at); | |
4300 | if (sym->attr.dimension) | |
4301 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4302 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4303 | TREE_STATIC (decl) = 1; | |
4304 | TREE_USED (decl) = 1; | |
4305 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4306 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4307 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4308 | TREE_TYPE (decl), | |
4309 | sym->attr.dimension, | |
4310 | false, false); | |
2eb674c9 | 4311 | debug_hooks->global_decl (decl); |
4312 | } | |
4313 | ||
a961ca30 | 4314 | |
4315 | static void | |
4316 | generate_coarray_sym_init (gfc_symbol *sym) | |
4317 | { | |
4318 | tree tmp, size, decl, token; | |
4319 | ||
4320 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
4321 | || sym->attr.use_assoc || !sym->attr.referenced) | |
4322 | return; | |
4323 | ||
4324 | decl = sym->backend_decl; | |
4325 | TREE_USED(decl) = 1; | |
4326 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4327 | ||
4328 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 | |
4329 | to make sure the variable is not optimized away. */ | |
4330 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4331 | ||
4332 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
4333 | ||
ee4e7a5e | 4334 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
4335 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, | |
4336 | fold_convert (size_type_node, size), | |
4337 | build_int_cst (size_type_node, 1)); | |
4338 | ||
a961ca30 | 4339 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4340 | { | |
4341 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4342 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4343 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4344 | } |
4345 | ||
4346 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4347 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4348 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
4349 | ||
4350 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, | |
7b186db6 | 4351 | build_int_cst (integer_type_node, |
4f5fe475 | 4352 | GFC_CAF_COARRAY_STATIC), /* type. */ |
a961ca30 | 4353 | token, null_pointer_node, /* token, stat. */ |
4354 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4355 | build_int_cst (integer_type_node, 0)); | |
4356 | ||
4357 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); | |
4358 | ||
4359 | ||
4360 | /* Handle "static" initializer. */ | |
4361 | if (sym->value) | |
4362 | { | |
4363 | sym->attr.pointer = 1; | |
4364 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4365 | true, false); | |
4366 | sym->attr.pointer = 0; | |
4367 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4368 | } | |
4369 | } | |
4370 | ||
4371 | ||
4372 | /* Generate constructor function to initialize static, nonallocatable | |
4373 | coarrays. */ | |
4374 | ||
4375 | static void | |
4376 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4377 | { | |
4378 | tree fndecl, tmp, decl, save_fn_decl; | |
4379 | ||
4380 | save_fn_decl = current_function_decl; | |
4381 | push_function_context (); | |
4382 | ||
4383 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4384 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4385 | create_tmp_var_name ("_caf_init"), tmp); | |
4386 | ||
4387 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4388 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4389 | ||
4390 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4391 | DECL_ARTIFICIAL (decl) = 1; | |
4392 | DECL_IGNORED_P (decl) = 1; | |
4393 | DECL_CONTEXT (decl) = fndecl; | |
4394 | DECL_RESULT (fndecl) = decl; | |
4395 | ||
4396 | pushdecl (fndecl); | |
4397 | current_function_decl = fndecl; | |
4398 | announce_function (fndecl); | |
4399 | ||
4400 | rest_of_decl_compilation (fndecl, 0, 0); | |
4401 | make_decl_rtl (fndecl); | |
4402 | init_function_start (fndecl); | |
4403 | ||
cde2be84 | 4404 | pushlevel (); |
a961ca30 | 4405 | gfc_init_block (&caf_init_block); |
4406 | ||
4407 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
4408 | ||
4409 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
4410 | decl = getdecls (); | |
4411 | ||
cde2be84 | 4412 | poplevel (1, 1); |
a961ca30 | 4413 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
4414 | ||
4415 | DECL_SAVED_TREE (fndecl) | |
4416 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
4417 | DECL_INITIAL (fndecl)); | |
4418 | dump_function (TDI_original, fndecl); | |
4419 | ||
4420 | cfun->function_end_locus = input_location; | |
4421 | set_cfun (NULL); | |
4422 | ||
4423 | if (decl_function_context (fndecl)) | |
4424 | (void) cgraph_create_node (fndecl); | |
4425 | else | |
4426 | cgraph_finalize_function (fndecl, true); | |
4427 | ||
4428 | pop_function_context (); | |
4429 | current_function_decl = save_fn_decl; | |
4430 | } | |
4431 | ||
4432 | ||
51d9479b | 4433 | /* Generate all the required code for module variables. */ |
4434 | ||
4435 | void | |
4436 | gfc_generate_module_vars (gfc_namespace * ns) | |
4437 | { | |
4438 | module_namespace = ns; | |
4439 | cur_module = gfc_find_module (ns->proc_name->name); | |
4440 | ||
4441 | /* Check if the frontend left the namespace in a reasonable state. */ | |
4442 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
4443 | ||
4444 | /* Generate COMMON blocks. */ | |
4445 | gfc_trans_common (ns); | |
4446 | ||
a961ca30 | 4447 | has_coarray_vars = false; |
4448 | ||
51d9479b | 4449 | /* Create decls for all the module variables. */ |
4450 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
4451 | ||
a961ca30 | 4452 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
4453 | generate_coarray_init (ns); | |
4454 | ||
51d9479b | 4455 | cur_module = NULL; |
4456 | ||
4457 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 4458 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 4459 | } |
4460 | ||
4461 | ||
4ee9c684 | 4462 | static void |
4463 | gfc_generate_contained_functions (gfc_namespace * parent) | |
4464 | { | |
4465 | gfc_namespace *ns; | |
4466 | ||
4467 | /* We create all the prototypes before generating any code. */ | |
4468 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4469 | { | |
4470 | /* Skip namespaces from used modules. */ | |
4471 | if (ns->parent != parent) | |
4472 | continue; | |
4473 | ||
d896f9b3 | 4474 | gfc_create_function_decl (ns, false); |
4ee9c684 | 4475 | } |
4476 | ||
4477 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4478 | { | |
4479 | /* Skip namespaces from used modules. */ | |
4480 | if (ns->parent != parent) | |
4481 | continue; | |
4482 | ||
4483 | gfc_generate_function_code (ns); | |
4484 | } | |
4485 | } | |
4486 | ||
4487 | ||
d95efb59 | 4488 | /* Drill down through expressions for the array specification bounds and |
4489 | character length calling generate_local_decl for all those variables | |
4490 | that have not already been declared. */ | |
4491 | ||
4492 | static void | |
4493 | generate_local_decl (gfc_symbol *); | |
4494 | ||
1acb400a | 4495 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 4496 | |
1acb400a | 4497 | static bool |
4498 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
4499 | int *f ATTRIBUTE_UNUSED) | |
4500 | { | |
4501 | if (e->expr_type != EXPR_VARIABLE | |
4502 | || sym == e->symtree->n.sym | |
d95efb59 | 4503 | || e->symtree->n.sym->mark |
4504 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 4505 | return false; |
d95efb59 | 4506 | |
1acb400a | 4507 | generate_local_decl (e->symtree->n.sym); |
4508 | return false; | |
4509 | } | |
d95efb59 | 4510 | |
1acb400a | 4511 | static void |
4512 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
4513 | { | |
4514 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 4515 | } |
4516 | ||
4517 | ||
f6d0e37a | 4518 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 4519 | |
4520 | static void | |
4521 | generate_dependency_declarations (gfc_symbol *sym) | |
4522 | { | |
4523 | int i; | |
4524 | ||
4525 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 4526 | && sym->ts.u.cl |
4527 | && sym->ts.u.cl->length | |
4528 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
4529 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 4530 | |
4531 | if (sym->as && sym->as->rank) | |
4532 | { | |
4533 | for (i = 0; i < sym->as->rank; i++) | |
4534 | { | |
4535 | generate_expr_decls (sym, sym->as->lower[i]); | |
4536 | generate_expr_decls (sym, sym->as->upper[i]); | |
4537 | } | |
4538 | } | |
4539 | } | |
4540 | ||
4541 | ||
4ee9c684 | 4542 | /* Generate decls for all local variables. We do this to ensure correct |
4543 | handling of expressions which only appear in the specification of | |
4544 | other functions. */ | |
4545 | ||
4546 | static void | |
4547 | generate_local_decl (gfc_symbol * sym) | |
4548 | { | |
4549 | if (sym->attr.flavor == FL_VARIABLE) | |
4550 | { | |
a961ca30 | 4551 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
4552 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4553 | has_coarray_vars = true; | |
4554 | ||
d95efb59 | 4555 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 4556 | generate_dependency_declarations (sym); |
d95efb59 | 4557 | |
4ee9c684 | 4558 | if (sym->attr.referenced) |
8714fc76 | 4559 | gfc_get_symbol_decl (sym); |
4acad347 | 4560 | |
4561 | /* Warnings for unused dummy arguments. */ | |
4562 | else if (sym->attr.dummy) | |
7c0ca46e | 4563 | { |
4acad347 | 4564 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
4565 | if (gfc_option.warn_unused_dummy_argument | |
4566 | && sym->attr.intent == INTENT_OUT) | |
4567 | { | |
4568 | if (sym->ts.type != BT_DERIVED) | |
4569 | gfc_warning ("Dummy argument '%s' at %L was declared " | |
4570 | "INTENT(OUT) but was not set", sym->name, | |
4571 | &sym->declared_at); | |
4572 | else if (!gfc_has_default_initializer (sym->ts.u.derived)) | |
4573 | gfc_warning ("Derived-type dummy argument '%s' at %L was " | |
4574 | "declared INTENT(OUT) but was not set and " | |
4575 | "does not have a default initializer", | |
4576 | sym->name, &sym->declared_at); | |
90a4a5a6 | 4577 | if (sym->backend_decl != NULL_TREE) |
4578 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 4579 | } |
4580 | else if (gfc_option.warn_unused_dummy_argument) | |
90a4a5a6 | 4581 | { |
4582 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
4acad347 | 4583 | &sym->declared_at); |
90a4a5a6 | 4584 | if (sym->backend_decl != NULL_TREE) |
4585 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4586 | } | |
7c0ca46e | 4587 | } |
4acad347 | 4588 | |
f888a3fb | 4589 | /* Warn for unused variables, but not if they're inside a common |
72c9bfbc | 4590 | block, a namelist, or are use-associated. */ |
36609028 | 4591 | else if (warn_unused_variable |
72c9bfbc | 4592 | && !(sym->attr.in_common || sym->attr.use_assoc || sym->mark |
4593 | || sym->attr.in_namelist)) | |
90a4a5a6 | 4594 | { |
4595 | gfc_warning ("Unused variable '%s' declared at %L", sym->name, | |
4596 | &sym->declared_at); | |
4597 | if (sym->backend_decl != NULL_TREE) | |
4598 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4599 | } | |
f326eb81 | 4600 | else if (warn_unused_variable && sym->attr.use_only) |
90a4a5a6 | 4601 | { |
4602 | gfc_warning ("Unused module variable '%s' which has been explicitly " | |
4603 | "imported at %L", sym->name, &sym->declared_at); | |
4604 | if (sym->backend_decl != NULL_TREE) | |
4605 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4606 | } | |
8714fc76 | 4607 | |
d4163395 | 4608 | /* For variable length CHARACTER parameters, the PARM_DECL already |
4609 | references the length variable, so force gfc_get_symbol_decl | |
4610 | even when not referenced. If optimize > 0, it will be optimized | |
4611 | away anyway. But do this only after emitting -Wunused-parameter | |
4612 | warning if requested. */ | |
8714fc76 | 4613 | if (sym->attr.dummy && !sym->attr.referenced |
4614 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 4615 | && sym->ts.u.cl->backend_decl != NULL |
4616 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 4617 | { |
4618 | sym->attr.referenced = 1; | |
4619 | gfc_get_symbol_decl (sym); | |
4620 | } | |
76776e6d | 4621 | |
d0163401 | 4622 | /* INTENT(out) dummy arguments and result variables with allocatable |
4623 | components are reset by default and need to be set referenced to | |
4624 | generate the code for nullification and automatic lengths. */ | |
4625 | if (!sym->attr.referenced | |
8714fc76 | 4626 | && sym->ts.type == BT_DERIVED |
eeebe20b | 4627 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 4628 | && !sym->attr.pointer |
d0163401 | 4629 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
4630 | || | |
4631 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 4632 | { |
4633 | sym->attr.referenced = 1; | |
4634 | gfc_get_symbol_decl (sym); | |
4635 | } | |
4636 | ||
e72f979a | 4637 | /* Check for dependencies in the array specification and string |
4638 | length, adding the necessary declarations to the function. We | |
4639 | mark the symbol now, as well as in traverse_ns, to prevent | |
4640 | getting stuck in a circular dependency. */ | |
4641 | sym->mark = 1; | |
4ee9c684 | 4642 | } |
5dd246c1 | 4643 | else if (sym->attr.flavor == FL_PARAMETER) |
4644 | { | |
6ecfe89d | 4645 | if (warn_unused_parameter |
f326eb81 | 4646 | && !sym->attr.referenced) |
4647 | { | |
4648 | if (!sym->attr.use_assoc) | |
4649 | gfc_warning ("Unused parameter '%s' declared at %L", sym->name, | |
4650 | &sym->declared_at); | |
4651 | else if (sym->attr.use_only) | |
4652 | gfc_warning ("Unused parameter '%s' which has been explicitly " | |
4653 | "imported at %L", sym->name, &sym->declared_at); | |
4654 | } | |
5dd246c1 | 4655 | } |
fa7b6574 | 4656 | else if (sym->attr.flavor == FL_PROCEDURE) |
4657 | { | |
4658 | /* TODO: move to the appropriate place in resolve.c. */ | |
4659 | if (warn_return_type | |
4660 | && sym->attr.function | |
4661 | && sym->result | |
4662 | && sym != sym->result | |
4663 | && !sym->result->attr.referenced | |
4664 | && !sym->attr.use_assoc | |
4665 | && sym->attr.if_source != IFSRC_IFBODY) | |
4666 | { | |
4667 | gfc_warning ("Return value '%s' of function '%s' declared at " | |
4668 | "%L not set", sym->result->name, sym->name, | |
4669 | &sym->result->declared_at); | |
4670 | ||
4671 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 4672 | sym->result->mark = 1; |
fa7b6574 | 4673 | } |
4674 | } | |
c5d33754 | 4675 | |
19ba2ad8 | 4676 | if (sym->attr.dummy == 1) |
4677 | { | |
4678 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
4679 | procedures if they are passed by value. The tree type for them will | |
4680 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
4681 | what C would do with characters passed by-value. The value attribute | |
4682 | implies the dummy is a scalar. */ | |
4683 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
4684 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
4685 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 4686 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 4687 | |
4688 | /* Unused procedure passed as dummy argument. */ | |
4689 | if (sym->attr.flavor == FL_PROCEDURE) | |
4690 | { | |
4691 | if (!sym->attr.referenced) | |
4692 | { | |
4693 | if (gfc_option.warn_unused_dummy_argument) | |
4694 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
4695 | &sym->declared_at); | |
4696 | } | |
4697 | ||
4698 | /* Silence bogus "unused parameter" warnings from the | |
4699 | middle end. */ | |
4700 | if (sym->backend_decl != NULL_TREE) | |
4701 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
4702 | } | |
19ba2ad8 | 4703 | } |
4704 | ||
c5d33754 | 4705 | /* Make sure we convert the types of the derived types from iso_c_binding |
4706 | into (void *). */ | |
4707 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4708 | && sym->ts.type == BT_DERIVED) | |
4709 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 4710 | } |
4711 | ||
4712 | static void | |
4713 | generate_local_vars (gfc_namespace * ns) | |
4714 | { | |
4715 | gfc_traverse_ns (ns, generate_local_decl); | |
4716 | } | |
4717 | ||
4718 | ||
1b716045 | 4719 | /* Generate a switch statement to jump to the correct entry point. Also |
4720 | creates the label decls for the entry points. */ | |
4ee9c684 | 4721 | |
1b716045 | 4722 | static tree |
4723 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 4724 | { |
1b716045 | 4725 | stmtblock_t block; |
4726 | tree label; | |
4727 | tree tmp; | |
4728 | tree val; | |
4ee9c684 | 4729 | |
1b716045 | 4730 | gfc_init_block (&block); |
4731 | for (; el; el = el->next) | |
4732 | { | |
4733 | /* Add the case label. */ | |
b797d6d3 | 4734 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 4735 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 4736 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 4737 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 4738 | |
1b716045 | 4739 | /* And jump to the actual entry point. */ |
4740 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 4741 | tmp = build1_v (GOTO_EXPR, label); |
4742 | gfc_add_expr_to_block (&block, tmp); | |
4743 | ||
4744 | /* Save the label decl. */ | |
4745 | el->label = label; | |
4746 | } | |
4747 | tmp = gfc_finish_block (&block); | |
4748 | /* The first argument selects the entry point. */ | |
4749 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 4750 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
4751 | val, tmp, NULL_TREE); | |
1b716045 | 4752 | return tmp; |
4ee9c684 | 4753 | } |
4754 | ||
6374121b | 4755 | |
a4abf8a0 | 4756 | /* Add code to string lengths of actual arguments passed to a function against |
4757 | the expected lengths of the dummy arguments. */ | |
4758 | ||
4759 | static void | |
4760 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
4761 | { | |
4762 | gfc_formal_arglist *formal; | |
4763 | ||
4764 | for (formal = sym->formal; formal; formal = formal->next) | |
517c89e5 | 4765 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 4766 | && !formal->sym->ts.deferred) |
a4abf8a0 | 4767 | { |
4768 | enum tree_code comparison; | |
4769 | tree cond; | |
4770 | tree argname; | |
4771 | gfc_symbol *fsym; | |
4772 | gfc_charlen *cl; | |
4773 | const char *message; | |
4774 | ||
4775 | fsym = formal->sym; | |
eeebe20b | 4776 | cl = fsym->ts.u.cl; |
a4abf8a0 | 4777 | |
4778 | gcc_assert (cl); | |
4779 | gcc_assert (cl->passed_length != NULL_TREE); | |
4780 | gcc_assert (cl->backend_decl != NULL_TREE); | |
4781 | ||
4782 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
4783 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 4784 | that the actual string length is *at least* the expected one. |
4785 | Sequence association allows for a mismatch of the string length | |
4786 | if the actual argument is (part of) an array, but only if the | |
4787 | dummy argument is an array. (See "Sequence association" in | |
4788 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 4789 | if (fsym->attr.pointer || fsym->attr.allocatable |
4790 | || (fsym->as && fsym->as->type == AS_ASSUMED_SHAPE)) | |
a4abf8a0 | 4791 | { |
4792 | comparison = NE_EXPR; | |
4793 | message = _("Actual string length does not match the declared one" | |
4794 | " for dummy argument '%s' (%ld/%ld)"); | |
4795 | } | |
be4be771 | 4796 | else if (fsym->as && fsym->as->rank != 0) |
4797 | continue; | |
a4abf8a0 | 4798 | else |
4799 | { | |
4800 | comparison = LT_EXPR; | |
4801 | message = _("Actual string length is shorter than the declared one" | |
4802 | " for dummy argument '%s' (%ld/%ld)"); | |
4803 | } | |
4804 | ||
4805 | /* Build the condition. For optional arguments, an actual length | |
4806 | of 0 is also acceptable if the associated string is NULL, which | |
4807 | means the argument was not passed. */ | |
fd779e1d | 4808 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
4809 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 4810 | if (fsym->attr.optional) |
4811 | { | |
4812 | tree not_absent; | |
4813 | tree not_0length; | |
4814 | tree absent_failed; | |
4815 | ||
fd779e1d | 4816 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4817 | boolean_type_node, | |
4818 | cl->passed_length, | |
385f3f36 | 4819 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 4820 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
4821 | fsym->attr.referenced = 1; | |
4822 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 4823 | |
fd779e1d | 4824 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4825 | boolean_type_node, not_0length, | |
4826 | not_absent); | |
a4abf8a0 | 4827 | |
fd779e1d | 4828 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4829 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 4830 | } |
4831 | ||
4832 | /* Build the runtime check. */ | |
4833 | argname = gfc_build_cstring_const (fsym->name); | |
4834 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
4835 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
4836 | message, argname, | |
4837 | fold_convert (long_integer_type_node, | |
4838 | cl->passed_length), | |
4839 | fold_convert (long_integer_type_node, | |
4840 | cl->backend_decl)); | |
4841 | } | |
4842 | } | |
4843 | ||
4844 | ||
642970a3 | 4845 | /* Generate the _gfortran_caf_this_image and _gfortran_caf_num_images |
4846 | global variables for -fcoarray=lib. They are placed into the translation | |
4847 | unit of the main program. Make sure that in one TU (the one of the main | |
4848 | program), the first call to gfc_init_coarray_decl is done with true. | |
4849 | Otherwise, expect link errors. */ | |
4850 | ||
70b5944a | 4851 | void |
642970a3 | 4852 | gfc_init_coarray_decl (bool main_tu) |
70b5944a | 4853 | { |
642970a3 | 4854 | tree save_fn_decl; |
70b5944a | 4855 | |
4856 | if (gfc_option.coarray != GFC_FCOARRAY_LIB) | |
4857 | return; | |
4858 | ||
4859 | if (gfort_gvar_caf_this_image || gfort_gvar_caf_num_images) | |
4860 | return; | |
4861 | ||
4862 | save_fn_decl = current_function_decl; | |
4863 | current_function_decl = NULL_TREE; | |
4864 | push_cfun (cfun); | |
4865 | ||
642970a3 | 4866 | gfort_gvar_caf_this_image |
4867 | = build_decl (input_location, VAR_DECL, | |
4868 | get_identifier (PREFIX("caf_this_image")), | |
4869 | integer_type_node); | |
70b5944a | 4870 | DECL_ARTIFICIAL (gfort_gvar_caf_this_image) = 1; |
4871 | TREE_USED (gfort_gvar_caf_this_image) = 1; | |
4872 | TREE_PUBLIC (gfort_gvar_caf_this_image) = 1; | |
642970a3 | 4873 | TREE_READONLY (gfort_gvar_caf_this_image) = 0; |
4874 | ||
4875 | if (main_tu) | |
4876 | TREE_STATIC (gfort_gvar_caf_this_image) = 1; | |
4877 | else | |
4878 | DECL_EXTERNAL (gfort_gvar_caf_this_image) = 1; | |
4879 | ||
4880 | pushdecl_top_level (gfort_gvar_caf_this_image); | |
70b5944a | 4881 | |
642970a3 | 4882 | gfort_gvar_caf_num_images |
4883 | = build_decl (input_location, VAR_DECL, | |
4884 | get_identifier (PREFIX("caf_num_images")), | |
4885 | integer_type_node); | |
70b5944a | 4886 | DECL_ARTIFICIAL (gfort_gvar_caf_num_images) = 1; |
4887 | TREE_USED (gfort_gvar_caf_num_images) = 1; | |
4888 | TREE_PUBLIC (gfort_gvar_caf_num_images) = 1; | |
642970a3 | 4889 | TREE_READONLY (gfort_gvar_caf_num_images) = 0; |
4890 | ||
4891 | if (main_tu) | |
4892 | TREE_STATIC (gfort_gvar_caf_num_images) = 1; | |
4893 | else | |
4894 | DECL_EXTERNAL (gfort_gvar_caf_num_images) = 1; | |
4895 | ||
4896 | pushdecl_top_level (gfort_gvar_caf_num_images); | |
70b5944a | 4897 | |
4898 | pop_cfun (); | |
4899 | current_function_decl = save_fn_decl; | |
4900 | } | |
4901 | ||
4902 | ||
7257a5d2 | 4903 | static void |
4904 | create_main_function (tree fndecl) | |
4905 | { | |
43702da6 | 4906 | tree old_context; |
7257a5d2 | 4907 | tree ftn_main; |
4908 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
4909 | stmtblock_t body; | |
4910 | ||
43702da6 | 4911 | old_context = current_function_decl; |
4912 | ||
4913 | if (old_context) | |
4914 | { | |
4915 | push_function_context (); | |
4916 | saved_parent_function_decls = saved_function_decls; | |
4917 | saved_function_decls = NULL_TREE; | |
4918 | } | |
4919 | ||
7257a5d2 | 4920 | /* main() function must be declared with global scope. */ |
4921 | gcc_assert (current_function_decl == NULL_TREE); | |
4922 | ||
4923 | /* Declare the function. */ | |
4924 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
4925 | build_pointer_type (pchar_type_node), | |
4926 | NULL_TREE); | |
0509d0ee | 4927 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 4928 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
4929 | main_identifier_node, tmp); | |
7257a5d2 | 4930 | DECL_EXTERNAL (ftn_main) = 0; |
4931 | TREE_PUBLIC (ftn_main) = 1; | |
4932 | TREE_STATIC (ftn_main) = 1; | |
4933 | DECL_ATTRIBUTES (ftn_main) | |
4934 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
4935 | ||
4936 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 4937 | result_decl = build_decl (input_location, |
4938 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 4939 | DECL_ARTIFICIAL (result_decl) = 1; |
4940 | DECL_IGNORED_P (result_decl) = 1; | |
4941 | DECL_CONTEXT (result_decl) = ftn_main; | |
4942 | DECL_RESULT (ftn_main) = result_decl; | |
4943 | ||
4944 | pushdecl (ftn_main); | |
4945 | ||
4946 | /* Get the arguments. */ | |
4947 | ||
4948 | arglist = NULL_TREE; | |
4949 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
4950 | ||
4951 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 4952 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 4953 | DECL_CONTEXT (argc) = ftn_main; |
4954 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
4955 | TREE_READONLY (argc) = 1; | |
4956 | gfc_finish_decl (argc); | |
4957 | arglist = chainon (arglist, argc); | |
4958 | ||
4959 | typelist = TREE_CHAIN (typelist); | |
4960 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 4961 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 4962 | DECL_CONTEXT (argv) = ftn_main; |
4963 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
4964 | TREE_READONLY (argv) = 1; | |
4965 | DECL_BY_REFERENCE (argv) = 1; | |
4966 | gfc_finish_decl (argv); | |
4967 | arglist = chainon (arglist, argv); | |
4968 | ||
4969 | DECL_ARGUMENTS (ftn_main) = arglist; | |
4970 | current_function_decl = ftn_main; | |
4971 | announce_function (ftn_main); | |
4972 | ||
4973 | rest_of_decl_compilation (ftn_main, 1, 0); | |
4974 | make_decl_rtl (ftn_main); | |
4975 | init_function_start (ftn_main); | |
cde2be84 | 4976 | pushlevel (); |
7257a5d2 | 4977 | |
4978 | gfc_init_block (&body); | |
4979 | ||
4980 | /* Call some libgfortran initialization routines, call then MAIN__(). */ | |
4981 | ||
70b5944a | 4982 | /* Call _gfortran_caf_init (*argc, ***argv, *this_image, *num_images). */ |
4983 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
4984 | { | |
4985 | tree pint_type, pppchar_type; | |
4986 | pint_type = build_pointer_type (integer_type_node); | |
4987 | pppchar_type | |
4988 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
4989 | ||
642970a3 | 4990 | gfc_init_coarray_decl (true); |
70b5944a | 4991 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 4, |
4992 | gfc_build_addr_expr (pint_type, argc), | |
4993 | gfc_build_addr_expr (pppchar_type, argv), | |
4994 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_this_image), | |
4995 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_num_images)); | |
4996 | gfc_add_expr_to_block (&body, tmp); | |
4997 | } | |
4998 | ||
7257a5d2 | 4999 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5000 | TREE_USED (argc) = 1; |
5001 | TREE_USED (argv) = 1; | |
389dd41b | 5002 | tmp = build_call_expr_loc (input_location, |
5003 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5004 | gfc_add_expr_to_block (&body, tmp); |
5005 | ||
5006 | /* Add a call to set_options to set up the runtime library Fortran | |
5007 | language standard parameters. */ | |
5008 | { | |
5009 | tree array_type, array, var; | |
06f13dc1 | 5010 | VEC(constructor_elt,gc) *v = NULL; |
7257a5d2 | 5011 | |
5012 | /* Passing a new option to the library requires four modifications: | |
5013 | + add it to the tree_cons list below | |
5014 | + change the array size in the call to build_array_type | |
5015 | + change the first argument to the library call | |
5016 | gfor_fndecl_set_options | |
5017 | + modify the library (runtime/compile_options.c)! */ | |
5018 | ||
06f13dc1 | 5019 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5020 | build_int_cst (integer_type_node, | |
5021 | gfc_option.warn_std)); | |
5022 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5023 | build_int_cst (integer_type_node, | |
5024 | gfc_option.allow_std)); | |
5025 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5026 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5027 | /* TODO: This is the old -fdump-core option, which is unused but |
5028 | passed due to ABI compatibility; remove when bumping the | |
5029 | library ABI. */ | |
06f13dc1 | 5030 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5031 | build_int_cst (integer_type_node, | |
b2130263 | 5032 | 0)); |
06f13dc1 | 5033 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5034 | build_int_cst (integer_type_node, | |
5035 | gfc_option.flag_backtrace)); | |
5036 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5037 | build_int_cst (integer_type_node, | |
5038 | gfc_option.flag_sign_zero)); | |
5039 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5040 | build_int_cst (integer_type_node, | |
5041 | (gfc_option.rtcheck | |
5042 | & GFC_RTCHECK_BOUNDS))); | |
5043 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5044 | build_int_cst (integer_type_node, | |
5045 | gfc_option.flag_range_check)); | |
7257a5d2 | 5046 | |
5047 | array_type = build_array_type (integer_type_node, | |
35bf1214 | 5048 | build_index_type (size_int (7))); |
06f13dc1 | 5049 | array = build_constructor (array_type, v); |
7257a5d2 | 5050 | TREE_CONSTANT (array) = 1; |
5051 | TREE_STATIC (array) = 1; | |
5052 | ||
5053 | /* Create a static variable to hold the jump table. */ | |
5054 | var = gfc_create_var (array_type, "options"); | |
5055 | TREE_CONSTANT (var) = 1; | |
5056 | TREE_STATIC (var) = 1; | |
5057 | TREE_READONLY (var) = 1; | |
5058 | DECL_INITIAL (var) = array; | |
5059 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); | |
5060 | ||
389dd41b | 5061 | tmp = build_call_expr_loc (input_location, |
5062 | gfor_fndecl_set_options, 2, | |
7257a5d2 | 5063 | build_int_cst (integer_type_node, 8), var); |
5064 | gfc_add_expr_to_block (&body, tmp); | |
5065 | } | |
5066 | ||
5067 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5068 | the library will raise a FPE when needed. */ | |
5069 | if (gfc_option.fpe != 0) | |
5070 | { | |
389dd41b | 5071 | tmp = build_call_expr_loc (input_location, |
5072 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5073 | build_int_cst (integer_type_node, |
5074 | gfc_option.fpe)); | |
5075 | gfc_add_expr_to_block (&body, tmp); | |
5076 | } | |
5077 | ||
5078 | /* If this is the main program and an -fconvert option was provided, | |
5079 | add a call to set_convert. */ | |
5080 | ||
5081 | if (gfc_option.convert != GFC_CONVERT_NATIVE) | |
5082 | { | |
389dd41b | 5083 | tmp = build_call_expr_loc (input_location, |
5084 | gfor_fndecl_set_convert, 1, | |
7257a5d2 | 5085 | build_int_cst (integer_type_node, |
5086 | gfc_option.convert)); | |
5087 | gfc_add_expr_to_block (&body, tmp); | |
5088 | } | |
5089 | ||
5090 | /* If this is the main program and an -frecord-marker option was provided, | |
5091 | add a call to set_record_marker. */ | |
5092 | ||
5093 | if (gfc_option.record_marker != 0) | |
5094 | { | |
389dd41b | 5095 | tmp = build_call_expr_loc (input_location, |
5096 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5097 | build_int_cst (integer_type_node, |
5098 | gfc_option.record_marker)); | |
5099 | gfc_add_expr_to_block (&body, tmp); | |
5100 | } | |
5101 | ||
5102 | if (gfc_option.max_subrecord_length != 0) | |
5103 | { | |
389dd41b | 5104 | tmp = build_call_expr_loc (input_location, |
5105 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5106 | build_int_cst (integer_type_node, |
5107 | gfc_option.max_subrecord_length)); | |
5108 | gfc_add_expr_to_block (&body, tmp); | |
5109 | } | |
5110 | ||
5111 | /* Call MAIN__(). */ | |
389dd41b | 5112 | tmp = build_call_expr_loc (input_location, |
5113 | fndecl, 0); | |
7257a5d2 | 5114 | gfc_add_expr_to_block (&body, tmp); |
5115 | ||
43702da6 | 5116 | /* Mark MAIN__ as used. */ |
5117 | TREE_USED (fndecl) = 1; | |
5118 | ||
70b5944a | 5119 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
5120 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
5121 | { | |
5122 | /* Per F2008, 8.5.1 END of the main program implies a | |
5123 | SYNC MEMORY. */ | |
b9a16870 | 5124 | tmp = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
70b5944a | 5125 | tmp = build_call_expr_loc (input_location, tmp, 0); |
5126 | gfc_add_expr_to_block (&body, tmp); | |
5127 | ||
5128 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); | |
5129 | gfc_add_expr_to_block (&body, tmp); | |
5130 | } | |
5131 | ||
7257a5d2 | 5132 | /* "return 0". */ |
fd779e1d | 5133 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5134 | DECL_RESULT (ftn_main), | |
5135 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5136 | tmp = build1_v (RETURN_EXPR, tmp); |
5137 | gfc_add_expr_to_block (&body, tmp); | |
5138 | ||
5139 | ||
5140 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5141 | decl = getdecls (); | |
5142 | ||
5143 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5144 | poplevel (1, 1); |
7257a5d2 | 5145 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5146 | ||
5147 | DECL_SAVED_TREE (ftn_main) | |
5148 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5149 | DECL_INITIAL (ftn_main)); | |
5150 | ||
5151 | /* Output the GENERIC tree. */ | |
5152 | dump_function (TDI_original, ftn_main); | |
5153 | ||
bb982f66 | 5154 | cgraph_finalize_function (ftn_main, true); |
43702da6 | 5155 | |
5156 | if (old_context) | |
5157 | { | |
5158 | pop_function_context (); | |
5159 | saved_function_decls = saved_parent_function_decls; | |
5160 | } | |
5161 | current_function_decl = old_context; | |
7257a5d2 | 5162 | } |
5163 | ||
5164 | ||
89ac8ba1 | 5165 | /* Get the result expression for a procedure. */ |
5166 | ||
5167 | static tree | |
5168 | get_proc_result (gfc_symbol* sym) | |
5169 | { | |
5170 | if (sym->attr.subroutine || sym == sym->result) | |
5171 | { | |
5172 | if (current_fake_result_decl != NULL) | |
5173 | return TREE_VALUE (current_fake_result_decl); | |
5174 | ||
5175 | return NULL_TREE; | |
5176 | } | |
5177 | ||
5178 | return sym->result->backend_decl; | |
5179 | } | |
5180 | ||
5181 | ||
5182 | /* Generate an appropriate return-statement for a procedure. */ | |
5183 | ||
5184 | tree | |
5185 | gfc_generate_return (void) | |
5186 | { | |
5187 | gfc_symbol* sym; | |
5188 | tree result; | |
5189 | tree fndecl; | |
5190 | ||
5191 | sym = current_procedure_symbol; | |
5192 | fndecl = sym->backend_decl; | |
5193 | ||
5194 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5195 | result = NULL_TREE; | |
5196 | else | |
5197 | { | |
5198 | result = get_proc_result (sym); | |
5199 | ||
5200 | /* Set the return value to the dummy result variable. The | |
5201 | types may be different for scalar default REAL functions | |
5202 | with -ff2c, therefore we have to convert. */ | |
5203 | if (result != NULL_TREE) | |
5204 | { | |
5205 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5206 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5207 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5208 | result); | |
89ac8ba1 | 5209 | } |
5210 | } | |
5211 | ||
5212 | return build1_v (RETURN_EXPR, result); | |
5213 | } | |
5214 | ||
5215 | ||
4ee9c684 | 5216 | /* Generate code for a function. */ |
5217 | ||
5218 | void | |
5219 | gfc_generate_function_code (gfc_namespace * ns) | |
5220 | { | |
5221 | tree fndecl; | |
5222 | tree old_context; | |
5223 | tree decl; | |
5224 | tree tmp; | |
89ac8ba1 | 5225 | stmtblock_t init, cleanup; |
4ee9c684 | 5226 | stmtblock_t body; |
89ac8ba1 | 5227 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5228 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5229 | gfc_symbol *sym; |
89ac8ba1 | 5230 | gfc_symbol *previous_procedure_symbol; |
2294b616 | 5231 | int rank; |
e50e62f5 | 5232 | bool is_recursive; |
4ee9c684 | 5233 | |
5234 | sym = ns->proc_name; | |
89ac8ba1 | 5235 | previous_procedure_symbol = current_procedure_symbol; |
5236 | current_procedure_symbol = sym; | |
1b716045 | 5237 | |
4ee9c684 | 5238 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5239 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5240 | sym->tlink = sym; |
5241 | ||
5242 | /* Create the declaration for functions with global scope. */ | |
5243 | if (!sym->backend_decl) | |
d896f9b3 | 5244 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5245 | |
5246 | fndecl = sym->backend_decl; | |
5247 | old_context = current_function_decl; | |
5248 | ||
5249 | if (old_context) | |
5250 | { | |
5251 | push_function_context (); | |
5252 | saved_parent_function_decls = saved_function_decls; | |
5253 | saved_function_decls = NULL_TREE; | |
5254 | } | |
5255 | ||
1b716045 | 5256 | trans_function_start (sym); |
4ee9c684 | 5257 | |
89ac8ba1 | 5258 | gfc_init_block (&init); |
4ee9c684 | 5259 | |
c6871095 | 5260 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
5261 | { | |
5262 | /* Copy length backend_decls to all entry point result | |
5263 | symbols. */ | |
5264 | gfc_entry_list *el; | |
5265 | tree backend_decl; | |
5266 | ||
eeebe20b | 5267 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
5268 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 5269 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 5270 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 5271 | } |
5272 | ||
4ee9c684 | 5273 | /* Translate COMMON blocks. */ |
5274 | gfc_trans_common (ns); | |
5275 | ||
c750cc52 | 5276 | /* Null the parent fake result declaration if this namespace is |
5277 | a module function or an external procedures. */ | |
5278 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5279 | || ns->parent == NULL) | |
5280 | parent_fake_result_decl = NULL_TREE; | |
5281 | ||
2b685f8e | 5282 | gfc_generate_contained_functions (ns); |
5283 | ||
9579733e | 5284 | nonlocal_dummy_decls = NULL; |
5285 | nonlocal_dummy_decl_pset = NULL; | |
5286 | ||
a961ca30 | 5287 | has_coarray_vars = false; |
4ee9c684 | 5288 | generate_local_vars (ns); |
5b11d932 | 5289 | |
a961ca30 | 5290 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5291 | generate_coarray_init (ns); | |
5292 | ||
c750cc52 | 5293 | /* Keep the parent fake result declaration in module functions |
5294 | or external procedures. */ | |
5295 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5296 | || ns->parent == NULL) | |
5297 | current_fake_result_decl = parent_fake_result_decl; | |
5298 | else | |
5299 | current_fake_result_decl = NULL_TREE; | |
5300 | ||
89ac8ba1 | 5301 | is_recursive = sym->attr.recursive |
5302 | || (sym->attr.entry_master | |
5303 | && sym->ns->entries->sym->attr.recursive); | |
5304 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5305 | && !is_recursive | |
5306 | && !gfc_option.flag_recursive) | |
5307 | { | |
5308 | char * msg; | |
5309 | ||
5310 | asprintf (&msg, "Recursive call to nonrecursive procedure '%s'", | |
5311 | sym->name); | |
5312 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); | |
5313 | TREE_STATIC (recurcheckvar) = 1; | |
5314 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
5315 | gfc_add_expr_to_block (&init, recurcheckvar); | |
5316 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
5317 | &sym->declared_at, msg); | |
5318 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 5319 | free (msg); |
89ac8ba1 | 5320 | } |
4ee9c684 | 5321 | |
5322 | /* Now generate the code for the body of this function. */ | |
5323 | gfc_init_block (&body); | |
5324 | ||
5325 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 5326 | && sym->attr.subroutine) |
4ee9c684 | 5327 | { |
5328 | tree alternate_return; | |
c750cc52 | 5329 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 5330 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 5331 | } |
5332 | ||
1b716045 | 5333 | if (ns->entries) |
5334 | { | |
5335 | /* Jump to the correct entry point. */ | |
5336 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
5337 | gfc_add_expr_to_block (&body, tmp); | |
5338 | } | |
5339 | ||
a4abf8a0 | 5340 | /* If bounds-checking is enabled, generate code to check passed in actual |
5341 | arguments against the expected dummy argument attributes (e.g. string | |
5342 | lengths). */ | |
c1630d65 | 5343 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 5344 | add_argument_checking (&body, sym); |
5345 | ||
4ee9c684 | 5346 | tmp = gfc_trans_code (ns->code); |
5347 | gfc_add_expr_to_block (&body, tmp); | |
5348 | ||
4ee9c684 | 5349 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node) |
5350 | { | |
89ac8ba1 | 5351 | tree result = get_proc_result (sym); |
4ee9c684 | 5352 | |
42766cb3 | 5353 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 5354 | { |
deb7edfc | 5355 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
5356 | && sym->result == sym) | |
5357 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
5358 | null_pointer_node)); | |
42766cb3 | 5359 | else if (sym->ts.type == BT_CLASS |
5360 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 5361 | && CLASS_DATA (sym)->attr.dimension == 0 |
5362 | && sym->result == sym) | |
42766cb3 | 5363 | { |
5364 | tmp = CLASS_DATA (sym)->backend_decl; | |
5365 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
5366 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
5367 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
5368 | null_pointer_node)); | |
5369 | } | |
deb7edfc | 5370 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 5371 | && sym->ts.u.derived->attr.alloc_comp |
5372 | && !sym->attr.allocatable) | |
53169279 | 5373 | { |
5374 | rank = sym->as ? sym->as->rank : 0; | |
89ac8ba1 | 5375 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, result, rank); |
5376 | gfc_add_expr_to_block (&init, tmp); | |
53169279 | 5377 | } |
5176859a | 5378 | } |
e50e62f5 | 5379 | |
fa7b6574 | 5380 | if (result == NULL_TREE) |
5381 | { | |
5382 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 5383 | if (warn_return_type && sym == sym->result) |
fa7b6574 | 5384 | gfc_warning ("Return value of function '%s' at %L not set", |
5385 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5386 | if (warn_return_type) |
5387 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 5388 | } |
4ee9c684 | 5389 | else |
89ac8ba1 | 5390 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 5391 | } |
89ac8ba1 | 5392 | |
5393 | gfc_init_block (&cleanup); | |
5394 | ||
5395 | /* Reset recursion-check variable. */ | |
5396 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5397 | && !is_recursive | |
5ae82d58 | 5398 | && !gfc_option.gfc_flag_openmp |
89ac8ba1 | 5399 | && recurcheckvar != NULL_TREE) |
e50e62f5 | 5400 | { |
89ac8ba1 | 5401 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
5402 | recurcheckvar = NULL; | |
e50e62f5 | 5403 | } |
2294b616 | 5404 | |
89ac8ba1 | 5405 | /* Finish the function body and add init and cleanup code. */ |
5406 | tmp = gfc_finish_block (&body); | |
5407 | gfc_start_wrapped_block (&try_block, tmp); | |
5408 | /* Add code to create and cleanup arrays. */ | |
5409 | gfc_trans_deferred_vars (sym, &try_block); | |
5410 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
5411 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 5412 | |
5413 | /* Add all the decls we created during processing. */ | |
5414 | decl = saved_function_decls; | |
5415 | while (decl) | |
5416 | { | |
5417 | tree next; | |
5418 | ||
1767a056 | 5419 | next = DECL_CHAIN (decl); |
5420 | DECL_CHAIN (decl) = NULL_TREE; | |
ebad7c3e | 5421 | if (GFC_DECL_PUSH_TOPLEVEL (decl)) |
5422 | pushdecl_top_level (decl); | |
5423 | else | |
5424 | pushdecl (decl); | |
4ee9c684 | 5425 | decl = next; |
5426 | } | |
5427 | saved_function_decls = NULL_TREE; | |
5428 | ||
89ac8ba1 | 5429 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 5430 | decl = getdecls (); |
4ee9c684 | 5431 | |
5432 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5433 | poplevel (1, 1); |
4ee9c684 | 5434 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5435 | ||
e5004242 | 5436 | DECL_SAVED_TREE (fndecl) |
5437 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5438 | DECL_INITIAL (fndecl)); | |
5439 | ||
9579733e | 5440 | if (nonlocal_dummy_decls) |
5441 | { | |
5442 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
5443 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
5444 | pointer_set_destroy (nonlocal_dummy_decl_pset); | |
5445 | nonlocal_dummy_decls = NULL; | |
5446 | nonlocal_dummy_decl_pset = NULL; | |
5447 | } | |
5448 | ||
4ee9c684 | 5449 | /* Output the GENERIC tree. */ |
5450 | dump_function (TDI_original, fndecl); | |
5451 | ||
5452 | /* Store the end of the function, so that we get good line number | |
5453 | info for the epilogue. */ | |
5454 | cfun->function_end_locus = input_location; | |
5455 | ||
5456 | /* We're leaving the context of this function, so zap cfun. | |
5457 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
5458 | tree_rest_of_compilation. */ | |
87d4aa85 | 5459 | set_cfun (NULL); |
4ee9c684 | 5460 | |
5461 | if (old_context) | |
5462 | { | |
5463 | pop_function_context (); | |
5464 | saved_function_decls = saved_parent_function_decls; | |
5465 | } | |
5466 | current_function_decl = old_context; | |
5467 | ||
a961ca30 | 5468 | if (decl_function_context (fndecl) && !gfc_option.coarray == GFC_FCOARRAY_LIB |
5469 | && has_coarray_vars) | |
6374121b | 5470 | /* Register this function with cgraph just far enough to get it |
a961ca30 | 5471 | added to our parent's nested function list. |
5472 | If there are static coarrays in this function, the nested _caf_init | |
5473 | function has already called cgraph_create_node, which also created | |
5474 | the cgraph node for this function. */ | |
460beda6 | 5475 | (void) cgraph_create_node (fndecl); |
4ee9c684 | 5476 | else |
bb982f66 | 5477 | cgraph_finalize_function (fndecl, true); |
df4d540f | 5478 | |
5479 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5480 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 5481 | |
5482 | if (sym->attr.is_main_program) | |
5483 | create_main_function (fndecl); | |
89ac8ba1 | 5484 | |
5485 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 5486 | } |
5487 | ||
7257a5d2 | 5488 | |
4ee9c684 | 5489 | void |
5490 | gfc_generate_constructors (void) | |
5491 | { | |
22d678e8 | 5492 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 5493 | #if 0 |
5494 | tree fnname; | |
5495 | tree type; | |
5496 | tree fndecl; | |
5497 | tree decl; | |
5498 | tree tmp; | |
5499 | ||
5500 | if (gfc_static_ctors == NULL_TREE) | |
5501 | return; | |
5502 | ||
db85cc4f | 5503 | fnname = get_file_function_name ("I"); |
e1036019 | 5504 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 5505 | |
e60a6f7b | 5506 | fndecl = build_decl (input_location, |
5507 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 5508 | TREE_PUBLIC (fndecl) = 1; |
5509 | ||
e60a6f7b | 5510 | decl = build_decl (input_location, |
5511 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 5512 | DECL_ARTIFICIAL (decl) = 1; |
5513 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 5514 | DECL_CONTEXT (decl) = fndecl; |
5515 | DECL_RESULT (fndecl) = decl; | |
5516 | ||
5517 | pushdecl (fndecl); | |
5518 | ||
5519 | current_function_decl = fndecl; | |
5520 | ||
b2c4af5e | 5521 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 5522 | |
b2c4af5e | 5523 | make_decl_rtl (fndecl); |
4ee9c684 | 5524 | |
b31f705b | 5525 | init_function_start (fndecl); |
4ee9c684 | 5526 | |
cde2be84 | 5527 | pushlevel (); |
4ee9c684 | 5528 | |
5529 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
5530 | { | |
389dd41b | 5531 | tmp = build_call_expr_loc (input_location, |
5532 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 5533 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 5534 | } |
5535 | ||
e5004242 | 5536 | decl = getdecls (); |
cde2be84 | 5537 | poplevel (1, 1); |
4ee9c684 | 5538 | |
5539 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 5540 | DECL_SAVED_TREE (fndecl) |
5541 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5542 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 5543 | |
5544 | free_after_parsing (cfun); | |
5545 | free_after_compilation (cfun); | |
5546 | ||
6148a911 | 5547 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 5548 | |
5549 | current_function_decl = NULL_TREE; | |
5550 | #endif | |
5551 | } | |
5552 | ||
9ec7c303 | 5553 | /* Translates a BLOCK DATA program unit. This means emitting the |
5554 | commons contained therein plus their initializations. We also emit | |
5555 | a globally visible symbol to make sure that each BLOCK DATA program | |
5556 | unit remains unique. */ | |
5557 | ||
5558 | void | |
5559 | gfc_generate_block_data (gfc_namespace * ns) | |
5560 | { | |
5561 | tree decl; | |
5562 | tree id; | |
5563 | ||
b31f705b | 5564 | /* Tell the backend the source location of the block data. */ |
5565 | if (ns->proc_name) | |
5566 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
5567 | else | |
5568 | gfc_set_backend_locus (&gfc_current_locus); | |
5569 | ||
5570 | /* Process the DATA statements. */ | |
9ec7c303 | 5571 | gfc_trans_common (ns); |
5572 | ||
b31f705b | 5573 | /* Create a global symbol with the mane of the block data. This is to |
5574 | generate linker errors if the same name is used twice. It is never | |
5575 | really used. */ | |
9ec7c303 | 5576 | if (ns->proc_name) |
5577 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
5578 | else | |
5579 | id = get_identifier ("__BLOCK_DATA__"); | |
5580 | ||
e60a6f7b | 5581 | decl = build_decl (input_location, |
5582 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 5583 | TREE_PUBLIC (decl) = 1; |
5584 | TREE_STATIC (decl) = 1; | |
df4d540f | 5585 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 5586 | |
5587 | pushdecl (decl); | |
5588 | rest_of_decl_compilation (decl, 1, 0); | |
5589 | } | |
5590 | ||
b549d2a5 | 5591 | |
6a7084d7 | 5592 | /* Process the local variables of a BLOCK construct. */ |
5593 | ||
5594 | void | |
3c82e013 | 5595 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 5596 | { |
5597 | tree decl; | |
5598 | ||
5599 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 5600 | has_coarray_vars = false; |
5601 | ||
6a7084d7 | 5602 | generate_local_vars (ns); |
5603 | ||
a961ca30 | 5604 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5605 | generate_coarray_init (ns); | |
5606 | ||
6a7084d7 | 5607 | decl = saved_local_decls; |
5608 | while (decl) | |
5609 | { | |
5610 | tree next; | |
5611 | ||
1767a056 | 5612 | next = DECL_CHAIN (decl); |
5613 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 5614 | pushdecl (decl); |
5615 | decl = next; | |
5616 | } | |
5617 | saved_local_decls = NULL_TREE; | |
5618 | } | |
5619 | ||
5620 | ||
4ee9c684 | 5621 | #include "gt-fortran-trans-decl.h" |