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Commit | Line | Data |
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4ee9c684 | 1 | /* Backend function setup |
617125a6 | 2 | Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, |
d0d776fb | 3 | 2011, 2012 |
cfaf579d | 4 | Free Software Foundation, Inc. |
4ee9c684 | 5 | Contributed by Paul Brook |
6 | ||
c84b470d | 7 | This file is part of GCC. |
4ee9c684 | 8 | |
c84b470d | 9 | GCC is free software; you can redistribute it and/or modify it under |
10 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 11 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 12 | version. |
4ee9c684 | 13 | |
c84b470d | 14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
4ee9c684 | 18 | |
19 | You should have received a copy of the GNU General Public License | |
bdabe786 | 20 | along with GCC; see the file COPYING3. If not see |
21 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 22 | |
23 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
24 | ||
25 | #include "config.h" | |
26 | #include "system.h" | |
27 | #include "coretypes.h" | |
cb4070e0 | 28 | #include "tm.h" |
4ee9c684 | 29 | #include "tree.h" |
30 | #include "tree-dump.h" | |
989adef3 | 31 | #include "gimple.h" /* For create_tmp_var_raw. */ |
4ee9c684 | 32 | #include "ggc.h" |
7cbc820e | 33 | #include "diagnostic-core.h" /* For internal_error. */ |
34 | #include "toplev.h" /* For announce_function. */ | |
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 | /* This is a fake variable just for debugging purposes. */ |
461 | TREE_ASM_WRITTEN (decl) = 1; | |
462 | } | |
463 | ||
464 | ||
b9c7fce7 | 465 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 466 | |
467 | static void | |
b9c7fce7 | 468 | gfc_finish_decl (tree decl) |
4ee9c684 | 469 | { |
b9c7fce7 | 470 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
471 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 472 | |
b9c7fce7 | 473 | if (TREE_CODE (decl) != VAR_DECL) |
474 | return; | |
4ee9c684 | 475 | |
b9c7fce7 | 476 | if (DECL_SIZE (decl) == NULL_TREE |
477 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
478 | layout_decl (decl, 0); | |
479 | ||
480 | /* A few consistency checks. */ | |
481 | /* A static variable with an incomplete type is an error if it is | |
482 | initialized. Also if it is not file scope. Otherwise, let it | |
483 | through, but if it is not `extern' then it may cause an error | |
484 | message later. */ | |
485 | /* An automatic variable with an incomplete type is an error. */ | |
486 | ||
487 | /* We should know the storage size. */ | |
488 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
489 | || (TREE_STATIC (decl) | |
490 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) | |
491 | : DECL_EXTERNAL (decl))); | |
492 | ||
493 | /* The storage size should be constant. */ | |
494 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
495 | || !DECL_SIZE (decl) | |
496 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 497 | } |
498 | ||
499 | ||
500 | /* Apply symbol attributes to a variable, and add it to the function scope. */ | |
501 | ||
502 | static void | |
503 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
504 | { | |
c1977dbe | 505 | tree new_type; |
f888a3fb | 506 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
4ee9c684 | 507 | This is the equivalent of the TARGET variables. |
508 | We also need to set this if the variable is passed by reference in a | |
509 | CALL statement. */ | |
b549d2a5 | 510 | |
b7bf3f81 | 511 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 512 | if (sym->attr.cray_pointee) |
b7bf3f81 | 513 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 514 | |
4ee9c684 | 515 | if (sym->attr.target) |
516 | TREE_ADDRESSABLE (decl) = 1; | |
517 | /* If it wasn't used we wouldn't be getting it. */ | |
518 | TREE_USED (decl) = 1; | |
519 | ||
7415cfe4 | 520 | if (sym->attr.flavor == FL_PARAMETER |
521 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
522 | TREE_READONLY (decl) = 1; | |
523 | ||
4ee9c684 | 524 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
525 | because this would add them to the current scope rather than the | |
526 | function scope. */ | |
527 | if (current_function_decl != NULL_TREE) | |
528 | { | |
7af6a4af | 529 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 530 | || sym->result == sym) |
4ee9c684 | 531 | gfc_add_decl_to_function (decl); |
6a7084d7 | 532 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
533 | /* This is a BLOCK construct. */ | |
534 | add_decl_as_local (decl); | |
4ee9c684 | 535 | else |
536 | gfc_add_decl_to_parent_function (decl); | |
537 | } | |
538 | ||
b7bf3f81 | 539 | if (sym->attr.cray_pointee) |
540 | return; | |
541 | ||
c5d33754 | 542 | if(sym->attr.is_bind_c == 1) |
543 | { | |
544 | /* We need to put variables that are bind(c) into the common | |
545 | segment of the object file, because this is what C would do. | |
546 | gfortran would typically put them in either the BSS or | |
547 | initialized data segments, and only mark them as common if | |
548 | they were part of common blocks. However, if they are not put | |
ea657963 | 549 | into common space, then C cannot initialize global Fortran |
c5d33754 | 550 | variables that it interoperates with and the draft says that |
551 | either Fortran or C should be able to initialize it (but not | |
552 | both, of course.) (J3/04-007, section 15.3). */ | |
553 | TREE_PUBLIC(decl) = 1; | |
554 | DECL_COMMON(decl) = 1; | |
555 | } | |
556 | ||
4ee9c684 | 557 | /* If a variable is USE associated, it's always external. */ |
558 | if (sym->attr.use_assoc) | |
559 | { | |
560 | DECL_EXTERNAL (decl) = 1; | |
561 | TREE_PUBLIC (decl) = 1; | |
562 | } | |
4f0fae8e | 563 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 564 | { |
6b20224d | 565 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 566 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
4ee9c684 | 567 | /* This is the declaration of a module variable. */ |
568 | TREE_PUBLIC (decl) = 1; | |
569 | TREE_STATIC (decl) = 1; | |
570 | } | |
571 | ||
f0d4969f | 572 | /* Derived types are a bit peculiar because of the possibility of |
573 | a default initializer; this must be applied each time the variable | |
574 | comes into scope it therefore need not be static. These variables | |
575 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 576 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 577 | SAVE_EXPLICIT. */ |
578 | if (!sym->attr.use_assoc | |
579 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 580 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
581 | || (gfc_option.coarray == GFC_FCOARRAY_LIB | |
582 | && sym->attr.codimension && !sym->attr.allocatable))) | |
4ee9c684 | 583 | TREE_STATIC (decl) = 1; |
ef814c81 | 584 | |
585 | if (sym->attr.volatile_) | |
586 | { | |
ef814c81 | 587 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 588 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 589 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
590 | TREE_TYPE (decl) = new_type; | |
ef814c81 | 591 | } |
592 | ||
4ee9c684 | 593 | /* Keep variables larger than max-stack-var-size off stack. */ |
594 | if (!sym->ns->proc_name->attr.recursive | |
595 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 596 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
597 | /* Put variable length auto array pointers always into stack. */ | |
598 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
599 | || sym->attr.dimension == 0 | |
600 | || sym->as->type != AS_EXPLICIT | |
601 | || sym->attr.pointer | |
602 | || sym->attr.allocatable) | |
603 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 604 | TREE_STATIC (decl) = 1; |
764f1175 | 605 | |
606 | /* Handle threadprivate variables. */ | |
9dda1f80 | 607 | if (sym->attr.threadprivate |
764f1175 | 608 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
609 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
e1b3b79b | 610 | |
611 | if (!sym->attr.target | |
612 | && !sym->attr.pointer | |
452695a8 | 613 | && !sym->attr.cray_pointee |
8bb76364 | 614 | && !sym->attr.proc_pointer) |
615 | DECL_RESTRICTED_P (decl) = 1; | |
4ee9c684 | 616 | } |
617 | ||
618 | ||
619 | /* Allocate the lang-specific part of a decl. */ | |
620 | ||
621 | void | |
622 | gfc_allocate_lang_decl (tree decl) | |
623 | { | |
ba72912a | 624 | DECL_LANG_SPECIFIC (decl) = ggc_alloc_cleared_lang_decl(sizeof |
625 | (struct lang_decl)); | |
4ee9c684 | 626 | } |
627 | ||
628 | /* Remember a symbol to generate initialization/cleanup code at function | |
629 | entry/exit. */ | |
630 | ||
631 | static void | |
632 | gfc_defer_symbol_init (gfc_symbol * sym) | |
633 | { | |
634 | gfc_symbol *p; | |
635 | gfc_symbol *last; | |
636 | gfc_symbol *head; | |
637 | ||
638 | /* Don't add a symbol twice. */ | |
639 | if (sym->tlink) | |
640 | return; | |
641 | ||
642 | last = head = sym->ns->proc_name; | |
643 | p = last->tlink; | |
644 | ||
645 | /* Make sure that setup code for dummy variables which are used in the | |
646 | setup of other variables is generated first. */ | |
647 | if (sym->attr.dummy) | |
648 | { | |
649 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
650 | This is a circular list, so don't go past the head. */ | |
651 | while (p != head | |
652 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
653 | { | |
654 | last = p; | |
655 | p = p->tlink; | |
656 | } | |
657 | } | |
658 | /* Insert in between last and p. */ | |
659 | last->tlink = sym; | |
660 | sym->tlink = p; | |
661 | } | |
662 | ||
663 | ||
9f5a9ac5 | 664 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
665 | backend_decl for a module symbol, if it all ready exists. If the | |
666 | module gsymbol does not exist, it is created. If the symbol does | |
667 | not exist, it is added to the gsymbol namespace. Returns true if | |
668 | an existing backend_decl is found. */ | |
669 | ||
670 | bool | |
671 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
672 | { | |
673 | gfc_gsymbol *gsym; | |
674 | gfc_symbol *s; | |
675 | gfc_symtree *st; | |
676 | ||
677 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
678 | ||
679 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
680 | { | |
681 | st = NULL; | |
682 | s = NULL; | |
683 | ||
684 | if (gsym) | |
685 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
686 | ||
687 | if (!s) | |
688 | { | |
689 | if (!gsym) | |
690 | { | |
691 | gsym = gfc_get_gsymbol (sym->module); | |
692 | gsym->type = GSYM_MODULE; | |
693 | gsym->ns = gfc_get_namespace (NULL, 0); | |
694 | } | |
695 | ||
696 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
697 | st->n.sym = sym; | |
698 | sym->refs++; | |
699 | } | |
700 | else if (sym->attr.flavor == FL_DERIVED) | |
701 | { | |
c2958b6b | 702 | if (s && s->attr.flavor == FL_PROCEDURE) |
703 | { | |
704 | gfc_interface *intr; | |
705 | gcc_assert (s->attr.generic); | |
706 | for (intr = s->generic; intr; intr = intr->next) | |
707 | if (intr->sym->attr.flavor == FL_DERIVED) | |
708 | { | |
709 | s = intr->sym; | |
710 | break; | |
711 | } | |
712 | } | |
713 | ||
9f5a9ac5 | 714 | if (!s->backend_decl) |
715 | s->backend_decl = gfc_get_derived_type (s); | |
716 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
717 | return true; | |
718 | } | |
719 | else if (s->backend_decl) | |
720 | { | |
85ec2f13 | 721 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 722 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
723 | true); | |
724 | else if (sym->ts.type == BT_CHARACTER) | |
725 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
726 | sym->backend_decl = s->backend_decl; | |
727 | return true; | |
728 | } | |
729 | } | |
730 | return false; | |
731 | } | |
732 | ||
733 | ||
4ee9c684 | 734 | /* Create an array index type variable with function scope. */ |
735 | ||
736 | static tree | |
737 | create_index_var (const char * pfx, int nest) | |
738 | { | |
739 | tree decl; | |
740 | ||
741 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
742 | if (nest) | |
743 | gfc_add_decl_to_parent_function (decl); | |
744 | else | |
745 | gfc_add_decl_to_function (decl); | |
746 | return decl; | |
747 | } | |
748 | ||
749 | ||
750 | /* Create variables to hold all the non-constant bits of info for a | |
751 | descriptorless array. Remember these in the lang-specific part of the | |
752 | type. */ | |
753 | ||
754 | static void | |
755 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
756 | { | |
757 | tree type; | |
758 | int dim; | |
759 | int nest; | |
7b82374f | 760 | gfc_namespace* procns; |
4ee9c684 | 761 | |
762 | type = TREE_TYPE (decl); | |
763 | ||
764 | /* We just use the descriptor, if there is one. */ | |
765 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
766 | return; | |
767 | ||
22d678e8 | 768 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 769 | procns = gfc_find_proc_namespace (sym->ns); |
770 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 771 | && !sym->attr.contained; |
772 | ||
a961ca30 | 773 | if (sym->attr.codimension && gfc_option.coarray == GFC_FCOARRAY_LIB |
7dce33fe | 774 | && sym->as->type != AS_ASSUMED_SHAPE |
a961ca30 | 775 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
776 | { | |
777 | tree token; | |
778 | ||
d881175c | 779 | token = gfc_create_var_np (build_qualified_type (pvoid_type_node, |
780 | TYPE_QUAL_RESTRICT), | |
781 | "caf_token"); | |
a961ca30 | 782 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
783 | DECL_ARTIFICIAL (token) = 1; | |
784 | TREE_STATIC (token) = 1; | |
785 | gfc_add_decl_to_function (token); | |
786 | } | |
787 | ||
4ee9c684 | 788 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
789 | { | |
790 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 791 | { |
792 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
793 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
794 | } | |
9ca15c9b | 795 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 796 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
797 | && (sym->as->type != AS_ASSUMED_SIZE | |
798 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 799 | { |
800 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
801 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
802 | } | |
4ee9c684 | 803 | |
804 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 805 | { |
806 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
807 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
808 | } | |
4ee9c684 | 809 | } |
076094b7 | 810 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
811 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
812 | { | |
813 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
814 | { | |
815 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
816 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
817 | } | |
818 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
819 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
820 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
821 | { | |
822 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
823 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
824 | } | |
825 | } | |
4ee9c684 | 826 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
827 | { | |
828 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
829 | "offset"); | |
86254bbf | 830 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
831 | ||
4ee9c684 | 832 | if (nest) |
833 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
834 | else | |
835 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
836 | } | |
d4163395 | 837 | |
838 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
839 | && sym->as->type != AS_ASSUMED_SIZE) | |
86254bbf | 840 | { |
841 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
842 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
843 | } | |
d4163395 | 844 | |
845 | if (POINTER_TYPE_P (type)) | |
846 | { | |
847 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
848 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
849 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
850 | type = TREE_TYPE (type); | |
851 | } | |
852 | ||
853 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
854 | { | |
855 | tree size, range; | |
856 | ||
fd779e1d | 857 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
858 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 859 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
860 | size); | |
861 | TYPE_DOMAIN (type) = range; | |
862 | layout_type (type); | |
863 | } | |
6cf159a6 | 864 | |
6cf159a6 | 865 | if (TYPE_NAME (type) != NULL_TREE |
866 | && GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1) != NULL_TREE | |
867 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1)) == VAR_DECL) | |
868 | { | |
869 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
870 | ||
871 | for (dim = 0; dim < sym->as->rank - 1; dim++) | |
872 | { | |
873 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
874 | gtype = TREE_TYPE (gtype); | |
875 | } | |
876 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
877 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
878 | TYPE_NAME (type) = NULL_TREE; | |
879 | } | |
880 | ||
881 | if (TYPE_NAME (type) == NULL_TREE) | |
882 | { | |
883 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
884 | ||
885 | for (dim = sym->as->rank - 1; dim >= 0; dim--) | |
886 | { | |
7130ec9d | 887 | tree lbound, ubound; |
888 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
889 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
890 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 891 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 892 | /* Ensure the bound variables aren't optimized out at -O0. |
893 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 894 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
895 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
896 | end up in debug info. */ | |
7130ec9d | 897 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
898 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
899 | { | |
900 | if (DECL_NAME (lbound) | |
901 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
902 | "lbound") != 0) | |
84bfaaeb | 903 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 904 | DECL_IGNORED_P (lbound) = 0; |
905 | } | |
906 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
907 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
908 | { | |
909 | if (DECL_NAME (ubound) | |
910 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
911 | "ubound") != 0) | |
84bfaaeb | 912 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 913 | DECL_IGNORED_P (ubound) = 0; |
914 | } | |
6cf159a6 | 915 | } |
e60a6f7b | 916 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
917 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 918 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
919 | } | |
4ee9c684 | 920 | } |
921 | ||
922 | ||
923 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 924 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 925 | initialization, and construct full type information. */ |
926 | ||
927 | static tree | |
928 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
929 | { | |
930 | tree decl; | |
931 | tree type; | |
932 | gfc_array_spec *as; | |
933 | char *name; | |
3d8dea5a | 934 | gfc_packed packed; |
4ee9c684 | 935 | int n; |
936 | bool known_size; | |
937 | ||
938 | if (sym->attr.pointer || sym->attr.allocatable) | |
939 | return dummy; | |
940 | ||
941 | /* Add to list of variables if not a fake result variable. */ | |
942 | if (sym->attr.result || sym->attr.dummy) | |
943 | gfc_defer_symbol_init (sym); | |
944 | ||
945 | type = TREE_TYPE (dummy); | |
22d678e8 | 946 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
4ee9c684 | 947 | && POINTER_TYPE_P (type)); |
948 | ||
f888a3fb | 949 | /* Do we know the element size? */ |
4ee9c684 | 950 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 951 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
4ee9c684 | 952 | |
953 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (type))) | |
954 | { | |
955 | /* For descriptorless arrays with known element size the actual | |
956 | argument is sufficient. */ | |
22d678e8 | 957 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
4ee9c684 | 958 | gfc_build_qualified_array (dummy, sym); |
959 | return dummy; | |
960 | } | |
961 | ||
962 | type = TREE_TYPE (type); | |
963 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
964 | { | |
cb8e3560 | 965 | /* Create a descriptorless array pointer. */ |
4ee9c684 | 966 | as = sym->as; |
3d8dea5a | 967 | packed = PACKED_NO; |
3d235846 | 968 | |
969 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
970 | are not repacked. */ | |
971 | if (!gfc_option.flag_repack_arrays || sym->attr.target) | |
4ee9c684 | 972 | { |
973 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 974 | packed = PACKED_FULL; |
4ee9c684 | 975 | } |
976 | else | |
977 | { | |
978 | if (as->type == AS_EXPLICIT) | |
979 | { | |
3d8dea5a | 980 | packed = PACKED_FULL; |
4ee9c684 | 981 | for (n = 0; n < as->rank; n++) |
982 | { | |
983 | if (!(as->upper[n] | |
984 | && as->lower[n] | |
985 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
986 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
3d8dea5a | 987 | packed = PACKED_PARTIAL; |
4ee9c684 | 988 | } |
989 | } | |
990 | else | |
3d8dea5a | 991 | packed = PACKED_PARTIAL; |
4ee9c684 | 992 | } |
993 | ||
994 | type = gfc_typenode_for_spec (&sym->ts); | |
e1b3b79b | 995 | type = gfc_get_nodesc_array_type (type, sym->as, packed, |
996 | !sym->attr.target); | |
4ee9c684 | 997 | } |
998 | else | |
999 | { | |
1000 | /* We now have an expression for the element size, so create a fully | |
1001 | qualified type. Reset sym->backend decl or this will just return the | |
1002 | old type. */ | |
d95efb59 | 1003 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1004 | sym->backend_decl = NULL_TREE; |
1005 | type = gfc_sym_type (sym); | |
3d8dea5a | 1006 | packed = PACKED_FULL; |
4ee9c684 | 1007 | } |
1008 | ||
1009 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1010 | decl = build_decl (input_location, |
1011 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1012 | |
1013 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1014 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1015 | TREE_PUBLIC (decl) = 0; |
1016 | TREE_STATIC (decl) = 0; | |
1017 | DECL_EXTERNAL (decl) = 0; | |
1018 | ||
1019 | /* We should never get deferred shape arrays here. We used to because of | |
1020 | frontend bugs. */ | |
22d678e8 | 1021 | gcc_assert (sym->as->type != AS_DEFERRED); |
4ee9c684 | 1022 | |
3d8dea5a | 1023 | if (packed == PACKED_PARTIAL) |
1024 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1025 | else if (packed == PACKED_FULL) | |
1026 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1027 | |
1028 | gfc_build_qualified_array (decl, sym); | |
1029 | ||
1030 | if (DECL_LANG_SPECIFIC (dummy)) | |
1031 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1032 | else | |
1033 | gfc_allocate_lang_decl (decl); | |
1034 | ||
1035 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1036 | ||
1037 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1038 | || sym->attr.contained) | |
1039 | gfc_add_decl_to_function (decl); | |
1040 | else | |
1041 | gfc_add_decl_to_parent_function (decl); | |
1042 | ||
1043 | return decl; | |
1044 | } | |
1045 | ||
9579733e | 1046 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1047 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1048 | pointing to the artificial variable for debug info purposes. */ | |
1049 | ||
1050 | static void | |
1051 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1052 | { | |
1053 | tree decl, dummy; | |
1054 | ||
1055 | if (! nonlocal_dummy_decl_pset) | |
1056 | nonlocal_dummy_decl_pset = pointer_set_create (); | |
1057 | ||
1058 | if (pointer_set_insert (nonlocal_dummy_decl_pset, sym->backend_decl)) | |
1059 | return; | |
1060 | ||
1061 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1062 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1063 | TREE_TYPE (sym->backend_decl)); |
1064 | DECL_ARTIFICIAL (decl) = 0; | |
1065 | TREE_USED (decl) = 1; | |
1066 | TREE_PUBLIC (decl) = 0; | |
1067 | TREE_STATIC (decl) = 0; | |
1068 | DECL_EXTERNAL (decl) = 0; | |
1069 | if (DECL_BY_REFERENCE (dummy)) | |
1070 | DECL_BY_REFERENCE (decl) = 1; | |
1071 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1072 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1073 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1074 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1075 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1076 | nonlocal_dummy_decls = decl; |
1077 | } | |
4ee9c684 | 1078 | |
1079 | /* Return a constant or a variable to use as a string length. Does not | |
1080 | add the decl to the current scope. */ | |
1081 | ||
1082 | static tree | |
1083 | gfc_create_string_length (gfc_symbol * sym) | |
1084 | { | |
eeebe20b | 1085 | gcc_assert (sym->ts.u.cl); |
1086 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1087 | |
eeebe20b | 1088 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1089 | { |
a4abf8a0 | 1090 | tree length; |
4ee9c684 | 1091 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 2]; |
1092 | ||
1093 | /* Also prefix the mangled name. */ | |
1094 | strcpy (&name[1], sym->name); | |
1095 | name[0] = '.'; | |
e60a6f7b | 1096 | length = build_decl (input_location, |
1097 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1098 | gfc_charlen_type_node); |
4ee9c684 | 1099 | DECL_ARTIFICIAL (length) = 1; |
1100 | TREE_USED (length) = 1; | |
d4163395 | 1101 | if (sym->ns->proc_name->tlink != NULL) |
1102 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1103 | |
eeebe20b | 1104 | sym->ts.u.cl->backend_decl = length; |
4ee9c684 | 1105 | } |
1106 | ||
eeebe20b | 1107 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1108 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1109 | } |
1110 | ||
c8f1568f | 1111 | /* If a variable is assigned a label, we add another two auxiliary |
1112 | variables. */ | |
1113 | ||
1114 | static void | |
1115 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1116 | { | |
1117 | tree addr; | |
1118 | tree length; | |
1119 | tree decl; | |
1120 | ||
1121 | gcc_assert (sym->backend_decl); | |
1122 | ||
1123 | decl = sym->backend_decl; | |
1124 | gfc_allocate_lang_decl (decl); | |
1125 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1126 | length = build_decl (input_location, |
1127 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1128 | gfc_charlen_type_node); |
e60a6f7b | 1129 | addr = build_decl (input_location, |
1130 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1131 | pvoid_type_node); |
1132 | gfc_finish_var_decl (length, sym); | |
1133 | gfc_finish_var_decl (addr, sym); | |
1134 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1135 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1136 | target label's address. Otherwise, value is the length of a format string | |
1137 | and ASSIGN_ADDR is its address. */ | |
1138 | if (TREE_STATIC (length)) | |
35bf1214 | 1139 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1140 | else |
1141 | gfc_defer_symbol_init (sym); | |
1142 | ||
1143 | GFC_DECL_STRING_LEN (decl) = length; | |
1144 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1145 | } | |
4ee9c684 | 1146 | |
36b0a1b0 | 1147 | |
1148 | static tree | |
1149 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1150 | { | |
1151 | unsigned id; | |
1152 | tree attr; | |
1153 | ||
1154 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1155 | if (sym_attr.ext_attr & (1 << id)) | |
1156 | { | |
1157 | attr = build_tree_list ( | |
1158 | get_identifier (ext_attr_list[id].middle_end_name), | |
1159 | NULL_TREE); | |
1160 | list = chainon (list, attr); | |
1161 | } | |
1162 | ||
1163 | return list; | |
1164 | } | |
1165 | ||
1166 | ||
802532b9 | 1167 | static void build_function_decl (gfc_symbol * sym, bool global); |
1168 | ||
1169 | ||
4ee9c684 | 1170 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1171 | exist. */ | |
1172 | ||
1173 | tree | |
1174 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1175 | { | |
1176 | tree decl; | |
1177 | tree length = NULL_TREE; | |
36b0a1b0 | 1178 | tree attributes; |
4ee9c684 | 1179 | int byref; |
cd2c99b8 | 1180 | bool intrinsic_array_parameter = false; |
4ee9c684 | 1181 | |
0b5dc8b5 | 1182 | gcc_assert (sym->attr.referenced |
d0f6ad22 | 1183 | || sym->attr.use_assoc |
40c74b02 | 1184 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1185 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1186 | && sym->backend_decl)); | |
4ee9c684 | 1187 | |
ff70e443 | 1188 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1189 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1190 | else | |
1191 | byref = 0; | |
1192 | ||
09c509ed | 1193 | /* Make sure that the vtab for the declared type is completed. */ |
1194 | if (sym->ts.type == BT_CLASS) | |
1195 | { | |
50b4b37b | 1196 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1197 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1198 | { |
1199 | gfc_find_derived_vtab (c->ts.u.derived); | |
1200 | gfc_get_derived_type (sym->ts.u.derived); | |
1201 | } | |
09c509ed | 1202 | } |
1203 | ||
617125a6 | 1204 | /* All deferred character length procedures need to retain the backend |
1205 | decl, which is a pointer to the character length in the caller's | |
1206 | namespace and to declare a local character length. */ | |
1207 | if (!byref && sym->attr.function | |
1208 | && sym->ts.type == BT_CHARACTER | |
1209 | && sym->ts.deferred | |
1210 | && sym->ts.u.cl->passed_length == NULL | |
1211 | && sym->ts.u.cl->backend_decl | |
1212 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1213 | { | |
1214 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1215 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1216 | length = gfc_create_string_length (sym); | |
1217 | } | |
1218 | ||
4ee9c684 | 1219 | if ((sym->attr.dummy && ! sym->attr.function) || (sym->attr.result && byref)) |
1220 | { | |
1221 | /* Return via extra parameter. */ | |
1222 | if (sym->attr.result && byref | |
1223 | && !sym->backend_decl) | |
1224 | { | |
1225 | sym->backend_decl = | |
1226 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1227 | /* For entry master function skip over the __entry |
1228 | argument. */ | |
1229 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1230 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1231 | } |
1232 | ||
1233 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1234 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1235 | |
1236 | /* Create a character length variable. */ | |
1237 | if (sym->ts.type == BT_CHARACTER) | |
1238 | { | |
617125a6 | 1239 | /* For a deferred dummy, make a new string length variable. */ |
1240 | if (sym->ts.deferred | |
1241 | && | |
1242 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1243 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1244 | ||
1245 | if (sym->ts.deferred && sym->attr.result | |
1246 | && sym->ts.u.cl->passed_length == NULL | |
1247 | && sym->ts.u.cl->backend_decl) | |
1248 | { | |
1249 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1250 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1251 | } | |
1252 | ||
eeebe20b | 1253 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1254 | length = gfc_create_string_length (sym); |
1255 | else | |
eeebe20b | 1256 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1257 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1258 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1259 | { |
d95efb59 | 1260 | /* Add the string length to the same context as the symbol. */ |
1261 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1262 | gfc_add_decl_to_function (length); | |
1263 | else | |
1264 | gfc_add_decl_to_parent_function (length); | |
1265 | ||
1266 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1267 | DECL_CONTEXT (length)); | |
1268 | ||
d4163395 | 1269 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1270 | } |
4ee9c684 | 1271 | } |
1272 | ||
1273 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1274 | if ((sym->attr.dimension || sym->attr.codimension) |
1275 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1276 | { |
d95efb59 | 1277 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1278 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1279 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1280 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1281 | sym->backend_decl = decl; | |
4ee9c684 | 1282 | } |
1283 | ||
1284 | TREE_USED (sym->backend_decl) = 1; | |
c8f1568f | 1285 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1286 | { | |
1287 | gfc_add_assign_aux_vars (sym); | |
1288 | } | |
9579733e | 1289 | |
1290 | if (sym->attr.dimension | |
1291 | && DECL_LANG_SPECIFIC (sym->backend_decl) | |
1292 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1293 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1294 | gfc_nonlocal_dummy_array_decl (sym); | |
1295 | ||
fd23cc08 | 1296 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1297 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1298 | ||
1299 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1300 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1301 | return sym->backend_decl; | |
4ee9c684 | 1302 | } |
1303 | ||
1304 | if (sym->backend_decl) | |
1305 | return sym->backend_decl; | |
1306 | ||
a25debd0 | 1307 | /* Special case for array-valued named constants from intrinsic |
1308 | procedures; those are inlined. */ | |
1309 | if (sym->attr.use_assoc && sym->from_intmod | |
1310 | && sym->attr.flavor == FL_PARAMETER) | |
1311 | intrinsic_array_parameter = true; | |
1312 | ||
7ea64434 | 1313 | /* If use associated and whole file compilation, use the module |
094bca96 | 1314 | declaration. */ |
7ea64434 | 1315 | if (gfc_option.flag_whole_file |
a25debd0 | 1316 | && (sym->attr.flavor == FL_VARIABLE |
1317 | || sym->attr.flavor == FL_PARAMETER) | |
9f5a9ac5 | 1318 | && sym->attr.use_assoc |
1319 | && !intrinsic_array_parameter | |
1320 | && sym->module | |
1321 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1322 | { |
1323 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1324 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1325 | return sym->backend_decl; | |
1326 | } | |
7ea64434 | 1327 | |
4ee9c684 | 1328 | if (sym->attr.flavor == FL_PROCEDURE) |
1329 | { | |
802532b9 | 1330 | /* Catch function declarations. Only used for actual parameters, |
1331 | procedure pointers and procptr initialization targets. */ | |
1332 | if (sym->attr.external || sym->attr.use_assoc || sym->attr.intrinsic) | |
1333 | { | |
1334 | decl = gfc_get_extern_function_decl (sym); | |
1335 | gfc_set_decl_location (decl, &sym->declared_at); | |
1336 | } | |
1337 | else | |
1338 | { | |
1339 | if (!sym->backend_decl) | |
1340 | build_function_decl (sym, false); | |
1341 | decl = sym->backend_decl; | |
1342 | } | |
4ee9c684 | 1343 | return decl; |
1344 | } | |
1345 | ||
1346 | if (sym->attr.intrinsic) | |
1347 | internal_error ("intrinsic variable which isn't a procedure"); | |
1348 | ||
1349 | /* Create string length decl first so that they can be used in the | |
1350 | type declaration. */ | |
1351 | if (sym->ts.type == BT_CHARACTER) | |
1352 | length = gfc_create_string_length (sym); | |
1353 | ||
1354 | /* Create the decl for the variable. */ | |
e60a6f7b | 1355 | decl = build_decl (sym->declared_at.lb->location, |
1356 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1357 | |
1236e28b | 1358 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1359 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1360 | decl_attributes (&decl, attributes, 0); | |
1361 | ||
f888a3fb | 1362 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1363 | This is done here rather than in gfc_finish_var_decl because it |
1364 | is different for string length variables. */ | |
4f0fae8e | 1365 | if (sym->module) |
df4d540f | 1366 | { |
1236e28b | 1367 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1368 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1369 | DECL_IGNORED_P (decl) = 1; |
1370 | } | |
4ee9c684 | 1371 | |
7a777e43 | 1372 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1373 | { |
1374 | /* Create variables to hold the non-constant bits of array info. */ | |
1375 | gfc_build_qualified_array (decl, sym); | |
1376 | ||
b3c3927c | 1377 | if (sym->attr.contiguous |
1378 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1379 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1380 | } | |
1381 | ||
0a96a7cc | 1382 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1383 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1384 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1385 | (CLASS_DATA (sym)->attr.dimension |
1386 | || CLASS_DATA (sym)->attr.allocatable)) | |
0a96a7cc | 1387 | || (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
1388 | /* This applies a derived type default initializer. */ | |
1389 | || (sym->ts.type == BT_DERIVED | |
1390 | && sym->attr.save == SAVE_NONE | |
1391 | && !sym->attr.data | |
1392 | && !sym->attr.allocatable | |
1393 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1394 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1395 | gfc_defer_symbol_init (sym); |
2294b616 | 1396 | |
4ee9c684 | 1397 | gfc_finish_var_decl (decl, sym); |
1398 | ||
bda1f152 | 1399 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1400 | { |
4ee9c684 | 1401 | /* Character variables need special handling. */ |
1402 | gfc_allocate_lang_decl (decl); | |
1403 | ||
bda1f152 | 1404 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1405 | { |
1406 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 2]; | |
1407 | ||
4f0fae8e | 1408 | if (sym->module) |
4ee9c684 | 1409 | { |
1410 | /* Also prefix the mangled name for symbols from modules. */ | |
1411 | strcpy (&name[1], sym->name); | |
1412 | name[0] = '.'; | |
1413 | strcpy (&name[1], | |
1414 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (length))); | |
1236e28b | 1415 | gfc_set_decl_assembler_name (decl, get_identifier (name)); |
4ee9c684 | 1416 | } |
1417 | gfc_finish_var_decl (length, sym); | |
22d678e8 | 1418 | gcc_assert (!sym->value); |
4ee9c684 | 1419 | } |
4ee9c684 | 1420 | } |
1033248c | 1421 | else if (sym->attr.subref_array_pointer) |
1422 | { | |
1423 | /* We need the span for these beasts. */ | |
1424 | gfc_allocate_lang_decl (decl); | |
1425 | } | |
1426 | ||
1427 | if (sym->attr.subref_array_pointer) | |
1428 | { | |
1429 | tree span; | |
1430 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1431 | span = build_decl (input_location, |
1432 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1433 | gfc_array_index_type); |
1434 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1435 | TREE_STATIC (span) = TREE_STATIC (decl); |
1436 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1437 | |
1438 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1439 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1440 | } |
1441 | ||
fd23cc08 | 1442 | if (sym->ts.type == BT_CLASS) |
1443 | GFC_DECL_CLASS(decl) = 1; | |
1444 | ||
4ee9c684 | 1445 | sym->backend_decl = decl; |
1446 | ||
c8f1568f | 1447 | if (sym->attr.assign) |
21ebda4d | 1448 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1449 | |
cd2c99b8 | 1450 | if (intrinsic_array_parameter) |
1451 | { | |
1452 | TREE_STATIC (decl) = 1; | |
1453 | DECL_EXTERNAL (decl) = 0; | |
1454 | } | |
1455 | ||
1456 | if (TREE_STATIC (decl) | |
1457 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1458 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
1459 | || gfc_option.flag_max_stack_var_size == 0 | |
a961ca30 | 1460 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
0d3bb1de | 1461 | && (gfc_option.coarray != GFC_FCOARRAY_LIB |
1462 | || !sym->attr.codimension || sym->attr.allocatable)) | |
a545a8f8 | 1463 | { |
1464 | /* Add static initializer. For procedures, it is only needed if | |
1465 | SAVE is specified otherwise they need to be reinitialized | |
1466 | every time the procedure is entered. The TREE_STATIC is | |
1467 | in this case due to -fmax-stack-var-size=. */ | |
bda1f152 | 1468 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
802532b9 | 1469 | TREE_TYPE (decl), |
0d3bb1de | 1470 | sym->attr.dimension |
1471 | || (sym->attr.codimension | |
1472 | && sym->attr.allocatable), | |
802532b9 | 1473 | sym->attr.pointer |
1474 | || sym->attr.allocatable, | |
1475 | sym->attr.proc_pointer); | |
bda1f152 | 1476 | } |
1477 | ||
9579733e | 1478 | if (!TREE_STATIC (decl) |
1479 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1480 | && !sym->attr.pointer | |
1481 | && !sym->attr.allocatable | |
1482 | && !sym->attr.proc_pointer) | |
1483 | DECL_BY_REFERENCE (decl) = 1; | |
1484 | ||
ebad7c3e | 1485 | if (sym->attr.vtab |
1486 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
98976ae1 | 1487 | { |
1488 | TREE_READONLY (decl) = 1; | |
1489 | GFC_DECL_PUSH_TOPLEVEL (decl) = 1; | |
1490 | } | |
ebad7c3e | 1491 | |
4ee9c684 | 1492 | return decl; |
1493 | } | |
1494 | ||
1495 | ||
dbe60343 | 1496 | /* Substitute a temporary variable in place of the real one. */ |
1497 | ||
1498 | void | |
1499 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1500 | { | |
1501 | save->attr = sym->attr; | |
1502 | save->decl = sym->backend_decl; | |
1503 | ||
1504 | gfc_clear_attr (&sym->attr); | |
1505 | sym->attr.referenced = 1; | |
1506 | sym->attr.flavor = FL_VARIABLE; | |
1507 | ||
1508 | sym->backend_decl = decl; | |
1509 | } | |
1510 | ||
1511 | ||
1512 | /* Restore the original variable. */ | |
1513 | ||
1514 | void | |
1515 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1516 | { | |
1517 | sym->attr = save->attr; | |
1518 | sym->backend_decl = save->decl; | |
1519 | } | |
1520 | ||
1521 | ||
cad0ddcf | 1522 | /* Declare a procedure pointer. */ |
1523 | ||
1524 | static tree | |
1525 | get_proc_pointer_decl (gfc_symbol *sym) | |
1526 | { | |
1527 | tree decl; | |
36b0a1b0 | 1528 | tree attributes; |
cad0ddcf | 1529 | |
1530 | decl = sym->backend_decl; | |
1531 | if (decl) | |
1532 | return decl; | |
1533 | ||
e60a6f7b | 1534 | decl = build_decl (input_location, |
1535 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1536 | build_pointer_type (gfc_get_function_type (sym))); |
1537 | ||
e72f979a | 1538 | if ((sym->ns->proc_name |
1539 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1540 | || sym->attr.contained) |
1541 | gfc_add_decl_to_function (decl); | |
cf269acc | 1542 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1543 | gfc_add_decl_to_parent_function (decl); |
1544 | ||
1545 | sym->backend_decl = decl; | |
1546 | ||
cf269acc | 1547 | /* If a variable is USE associated, it's always external. */ |
1548 | if (sym->attr.use_assoc) | |
1549 | { | |
1550 | DECL_EXTERNAL (decl) = 1; | |
1551 | TREE_PUBLIC (decl) = 1; | |
1552 | } | |
1553 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1554 | { | |
1555 | /* This is the declaration of a module variable. */ | |
1556 | TREE_PUBLIC (decl) = 1; | |
1557 | TREE_STATIC (decl) = 1; | |
1558 | } | |
1559 | ||
cad0ddcf | 1560 | if (!sym->attr.use_assoc |
1561 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1562 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1563 | TREE_STATIC (decl) = 1; | |
1564 | ||
1565 | if (TREE_STATIC (decl) && sym->value) | |
1566 | { | |
1567 | /* Add static initializer. */ | |
1568 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1569 | TREE_TYPE (decl), |
1570 | sym->attr.dimension, | |
1571 | false, true); | |
cad0ddcf | 1572 | } |
1573 | ||
8fb1768c | 1574 | /* Handle threadprivate procedure pointers. */ |
1575 | if (sym->attr.threadprivate | |
1576 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
1577 | DECL_TLS_MODEL (decl) = decl_default_tls_model (decl); | |
1578 | ||
36b0a1b0 | 1579 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1580 | decl_attributes (&decl, attributes, 0); | |
1581 | ||
cad0ddcf | 1582 | return decl; |
1583 | } | |
1584 | ||
1585 | ||
4ee9c684 | 1586 | /* Get a basic decl for an external function. */ |
1587 | ||
1588 | tree | |
1589 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1590 | { | |
1591 | tree type; | |
1592 | tree fndecl; | |
36b0a1b0 | 1593 | tree attributes; |
4ee9c684 | 1594 | gfc_expr e; |
1595 | gfc_intrinsic_sym *isym; | |
1596 | gfc_expr argexpr; | |
17000b91 | 1597 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1598 | tree name; |
1599 | tree mangled_name; | |
83aeedb9 | 1600 | gfc_gsymbol *gsym; |
4ee9c684 | 1601 | |
1602 | if (sym->backend_decl) | |
1603 | return sym->backend_decl; | |
1604 | ||
1b716045 | 1605 | /* We should never be creating external decls for alternate entry points. |
1606 | The procedure may be an alternate entry point, but we don't want/need | |
1607 | to know that. */ | |
22d678e8 | 1608 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1609 | |
cad0ddcf | 1610 | if (sym->attr.proc_pointer) |
1611 | return get_proc_pointer_decl (sym); | |
1612 | ||
83aeedb9 | 1613 | /* See if this is an external procedure from the same file. If so, |
1614 | return the backend_decl. */ | |
1615 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name); | |
1616 | ||
1617 | if (gfc_option.flag_whole_file | |
40c74b02 | 1618 | && (!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
83aeedb9 | 1619 | && !sym->backend_decl |
1620 | && gsym && gsym->ns | |
1621 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
d896f9b3 | 1622 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) |
83aeedb9 | 1623 | { |
d896f9b3 | 1624 | if (!gsym->ns->proc_name->backend_decl) |
1625 | { | |
1626 | /* By construction, the external function cannot be | |
1627 | a contained procedure. */ | |
1628 | locus old_loc; | |
1629 | tree save_fn_decl = current_function_decl; | |
1630 | ||
1631 | current_function_decl = NULL_TREE; | |
4671339c | 1632 | gfc_save_backend_locus (&old_loc); |
d896f9b3 | 1633 | push_cfun (cfun); |
1634 | ||
1635 | gfc_create_function_decl (gsym->ns, true); | |
1636 | ||
1637 | pop_cfun (); | |
4671339c | 1638 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1639 | current_function_decl = save_fn_decl; |
1640 | } | |
1641 | ||
83aeedb9 | 1642 | /* If the namespace has entries, the proc_name is the |
1643 | entry master. Find the entry and use its backend_decl. | |
1644 | otherwise, use the proc_name backend_decl. */ | |
1645 | if (gsym->ns->entries) | |
1646 | { | |
1647 | gfc_entry_list *entry = gsym->ns->entries; | |
1648 | ||
1649 | for (; entry; entry = entry->next) | |
1650 | { | |
1651 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1652 | { | |
1653 | sym->backend_decl = entry->sym->backend_decl; | |
1654 | break; | |
1655 | } | |
1656 | } | |
1657 | } | |
1658 | else | |
40c74b02 | 1659 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1660 | |
1661 | if (sym->backend_decl) | |
40c74b02 | 1662 | { |
1663 | /* Avoid problems of double deallocation of the backend declaration | |
1664 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1665 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1666 | sym->attr.use_assoc = 0; | |
1667 | ||
1668 | return sym->backend_decl; | |
1669 | } | |
83aeedb9 | 1670 | } |
1671 | ||
7ea64434 | 1672 | /* See if this is a module procedure from the same file. If so, |
1673 | return the backend_decl. */ | |
1674 | if (sym->module) | |
1675 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1676 | ||
1677 | if (gfc_option.flag_whole_file | |
1678 | && gsym && gsym->ns | |
1679 | && gsym->type == GSYM_MODULE) | |
1680 | { | |
1681 | gfc_symbol *s; | |
1682 | ||
1683 | s = NULL; | |
1684 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1685 | if (s && s->backend_decl) | |
1686 | { | |
85ec2f13 | 1687 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1688 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1689 | true); | |
1690 | else if (sym->ts.type == BT_CHARACTER) | |
1691 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1692 | sym->backend_decl = s->backend_decl; |
1693 | return sym->backend_decl; | |
1694 | } | |
1695 | } | |
1696 | ||
4ee9c684 | 1697 | if (sym->attr.intrinsic) |
1698 | { | |
1699 | /* Call the resolution function to get the actual name. This is | |
1700 | a nasty hack which relies on the resolution functions only looking | |
1701 | at the first argument. We pass NULL for the second argument | |
1702 | otherwise things like AINT get confused. */ | |
1703 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1704 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1705 | |
1706 | memset (&e, 0, sizeof (e)); | |
1707 | e.expr_type = EXPR_FUNCTION; | |
1708 | ||
1709 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1710 | gcc_assert (isym->formal); |
4ee9c684 | 1711 | argexpr.ts = isym->formal->ts; |
1712 | ||
1713 | if (isym->formal->next == NULL) | |
1714 | isym->resolve.f1 (&e, &argexpr); | |
1715 | else | |
1716 | { | |
37e0271a | 1717 | if (isym->formal->next->next == NULL) |
1718 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1719 | else | |
1720 | { | |
7fe55cc9 | 1721 | if (isym->formal->next->next->next == NULL) |
1722 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1723 | else | |
1724 | { | |
1725 | /* All specific intrinsics take less than 5 arguments. */ | |
1726 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1727 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1728 | } | |
37e0271a | 1729 | } |
4ee9c684 | 1730 | } |
bdaed7d2 | 1731 | |
1732 | if (gfc_option.flag_f2c | |
1733 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) | |
1734 | || e.ts.type == BT_COMPLEX)) | |
1735 | { | |
1736 | /* Specific which needs a different implementation if f2c | |
1737 | calling conventions are used. */ | |
17000b91 | 1738 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1739 | } |
1740 | else | |
17000b91 | 1741 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1742 | |
4ee9c684 | 1743 | name = get_identifier (s); |
1744 | mangled_name = name; | |
1745 | } | |
1746 | else | |
1747 | { | |
1748 | name = gfc_sym_identifier (sym); | |
1749 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1750 | } | |
1751 | ||
1752 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1753 | fndecl = build_decl (input_location, |
1754 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1755 | |
e27454ee | 1756 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1757 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1758 | the opposite of declaring a function as static in C). */ |
e27454ee | 1759 | DECL_EXTERNAL (fndecl) = 1; |
1760 | TREE_PUBLIC (fndecl) = 1; | |
1761 | ||
1236e28b | 1762 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1763 | decl_attributes (&fndecl, attributes, 0); | |
1764 | ||
1765 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 1766 | |
1767 | /* Set the context of this decl. */ | |
1768 | if (0 && sym->ns && sym->ns->proc_name) | |
1769 | { | |
1770 | /* TODO: Add external decls to the appropriate scope. */ | |
1771 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
1772 | } | |
1773 | else | |
1774 | { | |
f888a3fb | 1775 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 1776 | DECL_CONTEXT (fndecl) = NULL_TREE; |
1777 | } | |
1778 | ||
4ee9c684 | 1779 | /* Set attributes for PURE functions. A call to PURE function in the |
1780 | Fortran 95 sense is both pure and without side effects in the C | |
1781 | sense. */ | |
1782 | if (sym->attr.pure || sym->attr.elemental) | |
1783 | { | |
4d4b9f0e | 1784 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1785 | DECL_PURE_P (fndecl) = 1; |
be393645 | 1786 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
1787 | parameters and don't use alternate returns (is this | |
1788 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 1789 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 1790 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 1791 | } |
1792 | ||
6e27d773 | 1793 | /* Mark non-returning functions. */ |
1794 | if (sym->attr.noreturn) | |
1795 | TREE_THIS_VOLATILE(fndecl) = 1; | |
1796 | ||
4ee9c684 | 1797 | sym->backend_decl = fndecl; |
1798 | ||
1799 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
1800 | pushdecl_top_level (fndecl); | |
1801 | ||
1802 | return fndecl; | |
1803 | } | |
1804 | ||
1805 | ||
1806 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 1807 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
1808 | a master function with alternate entry points. */ | |
4ee9c684 | 1809 | |
1b716045 | 1810 | static void |
d896f9b3 | 1811 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 1812 | { |
36b0a1b0 | 1813 | tree fndecl, type, attributes; |
4ee9c684 | 1814 | symbol_attribute attr; |
1b716045 | 1815 | tree result_decl; |
4ee9c684 | 1816 | gfc_formal_arglist *f; |
1817 | ||
22d678e8 | 1818 | gcc_assert (!sym->attr.external); |
4ee9c684 | 1819 | |
802532b9 | 1820 | if (sym->backend_decl) |
1821 | return; | |
1822 | ||
b31f705b | 1823 | /* Set the line and filename. sym->declared_at seems to point to the |
1824 | last statement for subroutines, but it'll do for now. */ | |
1825 | gfc_set_backend_locus (&sym->declared_at); | |
1826 | ||
4ee9c684 | 1827 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 1828 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 1829 | || DECL_FILE_SCOPE_P (current_function_decl) |
1830 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
1831 | == NAMESPACE_DECL)); | |
4ee9c684 | 1832 | |
1833 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1834 | fndecl = build_decl (input_location, |
1835 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 1836 | |
1236e28b | 1837 | attr = sym->attr; |
1838 | ||
e27454ee | 1839 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1840 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1841 | the opposite of declaring a function as static in C). */ |
e27454ee | 1842 | DECL_EXTERNAL (fndecl) = 0; |
1843 | ||
1844 | if (!current_function_decl | |
1845 | && !sym->attr.entry_master && !sym->attr.is_main_program) | |
1846 | TREE_PUBLIC (fndecl) = 1; | |
1847 | ||
1236e28b | 1848 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
1849 | decl_attributes (&fndecl, attributes, 0); | |
1850 | ||
4ee9c684 | 1851 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 1852 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 1853 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 1854 | result_decl = NULL_TREE; |
1855 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
1856 | if (attr.function) | |
1857 | { | |
1858 | if (gfc_return_by_reference (sym)) | |
1859 | type = void_type_node; | |
1860 | else | |
1861 | { | |
1862 | if (sym->result != sym) | |
1863 | result_decl = gfc_sym_identifier (sym->result); | |
1864 | ||
1865 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
1866 | } | |
1867 | } | |
1868 | else | |
1869 | { | |
1870 | /* Look for alternate return placeholders. */ | |
1871 | int has_alternate_returns = 0; | |
1872 | for (f = sym->formal; f; f = f->next) | |
1873 | { | |
1874 | if (f->sym == NULL) | |
1875 | { | |
1876 | has_alternate_returns = 1; | |
1877 | break; | |
1878 | } | |
1879 | } | |
1880 | ||
1881 | if (has_alternate_returns) | |
1882 | type = integer_type_node; | |
1883 | else | |
1884 | type = void_type_node; | |
1885 | } | |
1886 | ||
e60a6f7b | 1887 | result_decl = build_decl (input_location, |
1888 | RESULT_DECL, result_decl, type); | |
540edea7 | 1889 | DECL_ARTIFICIAL (result_decl) = 1; |
1890 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 1891 | DECL_CONTEXT (result_decl) = fndecl; |
1892 | DECL_RESULT (fndecl) = result_decl; | |
1893 | ||
1894 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 1895 | layout_decl (result_decl, 0); */ |
4ee9c684 | 1896 | |
4ee9c684 | 1897 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 1898 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 1899 | |
f888a3fb | 1900 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 1901 | Fortran 95 sense is both pure and without side effects in the C |
1902 | sense. */ | |
1903 | if (attr.pure || attr.elemental) | |
1904 | { | |
be393645 | 1905 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 1906 | including an alternate return. In that case it can also be |
231e961a | 1907 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 1908 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1909 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 1910 | TREE_SIDE_EFFECTS (fndecl) = 0; |
1911 | } | |
1912 | ||
36b0a1b0 | 1913 | |
4ee9c684 | 1914 | /* Layout the function declaration and put it in the binding level |
1915 | of the current function. */ | |
d896f9b3 | 1916 | |
ebad7c3e | 1917 | if (global |
1918 | || (sym->name[0] == '_' && strncmp ("__copy", sym->name, 6) == 0)) | |
d896f9b3 | 1919 | pushdecl_top_level (fndecl); |
1920 | else | |
1921 | pushdecl (fndecl); | |
1b716045 | 1922 | |
16a40513 | 1923 | /* Perform name mangling if this is a top level or module procedure. */ |
1924 | if (current_function_decl == NULL_TREE) | |
1925 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
1926 | ||
1b716045 | 1927 | sym->backend_decl = fndecl; |
1928 | } | |
1929 | ||
1930 | ||
1931 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
1932 | ||
1933 | static void | |
1934 | create_function_arglist (gfc_symbol * sym) | |
1935 | { | |
1936 | tree fndecl; | |
1937 | gfc_formal_arglist *f; | |
d4163395 | 1938 | tree typelist, hidden_typelist; |
1939 | tree arglist, hidden_arglist; | |
1b716045 | 1940 | tree type; |
1941 | tree parm; | |
1942 | ||
1943 | fndecl = sym->backend_decl; | |
1944 | ||
e4b2c26c | 1945 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
1946 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 1947 | arglist = NULL_TREE; |
d4163395 | 1948 | hidden_arglist = NULL_TREE; |
e4b2c26c | 1949 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 1950 | |
1951 | if (sym->attr.entry_master) | |
1952 | { | |
1953 | type = TREE_VALUE (typelist); | |
e60a6f7b | 1954 | parm = build_decl (input_location, |
1955 | PARM_DECL, get_identifier ("__entry"), type); | |
1b716045 | 1956 | |
1957 | DECL_CONTEXT (parm) = fndecl; | |
1958 | DECL_ARG_TYPE (parm) = type; | |
1959 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 1960 | gfc_finish_decl (parm); |
d95efb59 | 1961 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 1962 | |
1963 | arglist = chainon (arglist, parm); | |
1964 | typelist = TREE_CHAIN (typelist); | |
1965 | } | |
1966 | ||
e4b2c26c | 1967 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 1968 | { |
d4163395 | 1969 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 1970 | |
e4b2c26c | 1971 | if (sym->ts.type == BT_CHARACTER) |
1972 | { | |
e4b2c26c | 1973 | /* Length of character result. */ |
d4163395 | 1974 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 1975 | |
e60a6f7b | 1976 | length = build_decl (input_location, |
1977 | PARM_DECL, | |
e4b2c26c | 1978 | get_identifier (".__result"), |
d4163395 | 1979 | len_type); |
eeebe20b | 1980 | if (!sym->ts.u.cl->length) |
e4b2c26c | 1981 | { |
eeebe20b | 1982 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 1983 | TREE_USED (length) = 1; |
4ee9c684 | 1984 | } |
22d678e8 | 1985 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 1986 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 1987 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 1988 | TREE_READONLY (length) = 1; |
b5b40b3f | 1989 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 1990 | gfc_finish_decl (length); |
eeebe20b | 1991 | if (sym->ts.u.cl->backend_decl == NULL |
1992 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 1993 | { |
1994 | gfc_symbol *arg; | |
1995 | tree backend_decl; | |
4ee9c684 | 1996 | |
eeebe20b | 1997 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 1998 | { |
e60a6f7b | 1999 | tree len = build_decl (input_location, |
2000 | VAR_DECL, | |
d4163395 | 2001 | get_identifier ("..__result"), |
2002 | gfc_charlen_type_node); | |
2003 | DECL_ARTIFICIAL (len) = 1; | |
2004 | TREE_USED (len) = 1; | |
eeebe20b | 2005 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2006 | } |
4ee9c684 | 2007 | |
d4163395 | 2008 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2009 | arg = sym->result ? sym->result : sym; | |
2010 | backend_decl = arg->backend_decl; | |
2011 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2012 | type. */ | |
2013 | arg->backend_decl = NULL; | |
2014 | type = gfc_sym_type (arg); | |
2015 | arg->backend_decl = backend_decl; | |
2016 | type = build_reference_type (type); | |
2017 | } | |
2018 | } | |
4ee9c684 | 2019 | |
e60a6f7b | 2020 | parm = build_decl (input_location, |
2021 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2022 | |
d4163395 | 2023 | DECL_CONTEXT (parm) = fndecl; |
2024 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2025 | TREE_READONLY (parm) = 1; | |
2026 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2027 | gfc_finish_decl (parm); |
4ee9c684 | 2028 | |
d4163395 | 2029 | arglist = chainon (arglist, parm); |
2030 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2031 | |
d4163395 | 2032 | if (sym->ts.type == BT_CHARACTER) |
2033 | { | |
2034 | gfc_allocate_lang_decl (parm); | |
2035 | arglist = chainon (arglist, length); | |
e4b2c26c | 2036 | typelist = TREE_CHAIN (typelist); |
2037 | } | |
2038 | } | |
4ee9c684 | 2039 | |
d4163395 | 2040 | hidden_typelist = typelist; |
2041 | for (f = sym->formal; f; f = f->next) | |
2042 | if (f->sym != NULL) /* Ignore alternate returns. */ | |
2043 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2044 | ||
e4b2c26c | 2045 | for (f = sym->formal; f; f = f->next) |
2046 | { | |
2047 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2048 | |
e4b2c26c | 2049 | /* Ignore alternate returns. */ |
2050 | if (f->sym == NULL) | |
2051 | continue; | |
4ee9c684 | 2052 | |
e4b2c26c | 2053 | type = TREE_VALUE (typelist); |
4ee9c684 | 2054 | |
296db1d1 | 2055 | if (f->sym->ts.type == BT_CHARACTER |
2056 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2057 | { |
2058 | tree len_type = TREE_VALUE (hidden_typelist); | |
2059 | tree length = NULL_TREE; | |
617125a6 | 2060 | if (!f->sym->ts.deferred) |
2061 | gcc_assert (len_type == gfc_charlen_type_node); | |
2062 | else | |
2063 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2064 | |
2065 | strcpy (&name[1], f->sym->name); | |
2066 | name[0] = '_'; | |
e60a6f7b | 2067 | length = build_decl (input_location, |
2068 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2069 | |
d4163395 | 2070 | hidden_arglist = chainon (hidden_arglist, length); |
2071 | DECL_CONTEXT (length) = fndecl; | |
2072 | DECL_ARTIFICIAL (length) = 1; | |
2073 | DECL_ARG_TYPE (length) = len_type; | |
2074 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2075 | gfc_finish_decl (length); |
4ee9c684 | 2076 | |
a4abf8a0 | 2077 | /* Remember the passed value. */ |
eeebe20b | 2078 | if (f->sym->ts.u.cl->passed_length != NULL) |
6be7c32c | 2079 | { |
2080 | /* This can happen if the same type is used for multiple | |
2081 | arguments. We need to copy cl as otherwise | |
2082 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2083 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2084 | } |
eeebe20b | 2085 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2086 | |
d4163395 | 2087 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2088 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2089 | { |
d4163395 | 2090 | TREE_USED (length) = 1; |
eeebe20b | 2091 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2092 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2093 | } |
2094 | ||
2095 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2096 | ||
eeebe20b | 2097 | if (f->sym->ts.u.cl->backend_decl == NULL |
2098 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2099 | { |
eeebe20b | 2100 | if (f->sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2101 | gfc_create_string_length (f->sym); |
2102 | ||
2103 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2104 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2105 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2106 | else | |
2107 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2108 | } |
4ee9c684 | 2109 | } |
2110 | ||
d4163395 | 2111 | /* For non-constant length array arguments, make sure they use |
2112 | a different type node from TYPE_ARG_TYPES type. */ | |
2113 | if (f->sym->attr.dimension | |
2114 | && type == TREE_VALUE (typelist) | |
2115 | && TREE_CODE (type) == POINTER_TYPE | |
2116 | && GFC_ARRAY_TYPE_P (type) | |
2117 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2118 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2119 | { | |
2120 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2121 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2122 | else | |
2123 | type = gfc_sym_type (f->sym); | |
2124 | } | |
2125 | ||
cad0ddcf | 2126 | if (f->sym->attr.proc_pointer) |
2127 | type = build_pointer_type (type); | |
2128 | ||
2364aa60 | 2129 | if (f->sym->attr.volatile_) |
2130 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2131 | ||
69b1505f | 2132 | /* Build the argument declaration. */ |
e60a6f7b | 2133 | parm = build_decl (input_location, |
2134 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2135 | |
2364aa60 | 2136 | if (f->sym->attr.volatile_) |
2137 | { | |
2138 | TREE_THIS_VOLATILE (parm) = 1; | |
2139 | TREE_SIDE_EFFECTS (parm) = 1; | |
2140 | } | |
2141 | ||
d4163395 | 2142 | /* Fill in arg stuff. */ |
2143 | DECL_CONTEXT (parm) = fndecl; | |
2144 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2145 | /* All implementation args are read-only. */ | |
2146 | TREE_READONLY (parm) = 1; | |
98923a84 | 2147 | if (POINTER_TYPE_P (type) |
2148 | && (!f->sym->attr.proc_pointer | |
2149 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2150 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2151 | |
b9c7fce7 | 2152 | gfc_finish_decl (parm); |
d4163395 | 2153 | |
2154 | f->sym->backend_decl = parm; | |
2155 | ||
7dce33fe | 2156 | /* Coarrays which are descriptorless or assumed-shape pass with |
2157 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
85c94a64 | 2158 | if (f->sym->attr.codimension |
2159 | && gfc_option.coarray == GFC_FCOARRAY_LIB | |
7dce33fe | 2160 | && !f->sym->attr.allocatable) |
85c94a64 | 2161 | { |
2162 | tree caf_type; | |
2163 | tree token; | |
2164 | tree offset; | |
2165 | ||
2166 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2167 | && !sym->attr.is_bind_c); | |
2168 | caf_type = TREE_TYPE (f->sym->backend_decl); | |
2169 | ||
85c94a64 | 2170 | token = build_decl (input_location, PARM_DECL, |
2171 | create_tmp_var_name ("caf_token"), | |
2172 | build_qualified_type (pvoid_type_node, | |
2173 | TYPE_QUAL_RESTRICT)); | |
7dce33fe | 2174 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2175 | { | |
2176 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2177 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2178 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2179 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2180 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2181 | } | |
2182 | else | |
2183 | { | |
2184 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2185 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2186 | } | |
2187 | ||
85c94a64 | 2188 | DECL_CONTEXT (token) = fndecl; |
2189 | DECL_ARTIFICIAL (token) = 1; | |
2190 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2191 | TREE_READONLY (token) = 1; | |
2192 | hidden_arglist = chainon (hidden_arglist, token); | |
2193 | gfc_finish_decl (token); | |
2194 | ||
85c94a64 | 2195 | offset = build_decl (input_location, PARM_DECL, |
2196 | create_tmp_var_name ("caf_offset"), | |
2197 | gfc_array_index_type); | |
2198 | ||
7dce33fe | 2199 | if (f->sym->as->type == AS_ASSUMED_SHAPE) |
2200 | { | |
2201 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2202 | == NULL_TREE); | |
2203 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2204 | } | |
2205 | else | |
2206 | { | |
2207 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2208 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2209 | } | |
85c94a64 | 2210 | DECL_CONTEXT (offset) = fndecl; |
2211 | DECL_ARTIFICIAL (offset) = 1; | |
2212 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2213 | TREE_READONLY (offset) = 1; | |
2214 | hidden_arglist = chainon (hidden_arglist, offset); | |
2215 | gfc_finish_decl (offset); | |
2216 | } | |
2217 | ||
d4163395 | 2218 | arglist = chainon (arglist, parm); |
e4b2c26c | 2219 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2220 | } |
e4b2c26c | 2221 | |
465e4a95 | 2222 | /* Add the hidden string length parameters, unless the procedure |
2223 | is bind(C). */ | |
2224 | if (!sym->attr.is_bind_c) | |
2225 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2226 | |
ebe27ea2 | 2227 | gcc_assert (hidden_typelist == NULL_TREE |
2228 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2229 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2230 | } |
e4b2c26c | 2231 | |
1b716045 | 2232 | /* Do the setup necessary before generating the body of a function. */ |
2233 | ||
2234 | static void | |
2235 | trans_function_start (gfc_symbol * sym) | |
2236 | { | |
2237 | tree fndecl; | |
2238 | ||
2239 | fndecl = sym->backend_decl; | |
2240 | ||
f888a3fb | 2241 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2242 | current_function_decl = fndecl; |
2243 | ||
f888a3fb | 2244 | /* Let the world know what we're about to do. */ |
1b716045 | 2245 | announce_function (fndecl); |
2246 | ||
16a40513 | 2247 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2248 | { |
f888a3fb | 2249 | /* Create RTL for function declaration. */ |
1b716045 | 2250 | rest_of_decl_compilation (fndecl, 1, 0); |
2251 | } | |
2252 | ||
f888a3fb | 2253 | /* Create RTL for function definition. */ |
1b716045 | 2254 | make_decl_rtl (fndecl); |
2255 | ||
1b716045 | 2256 | init_function_start (fndecl); |
2257 | ||
f888a3fb | 2258 | /* function.c requires a push at the start of the function. */ |
1b716045 | 2259 | pushlevel (0); |
2260 | } | |
2261 | ||
2262 | /* Create thunks for alternate entry points. */ | |
2263 | ||
2264 | static void | |
d896f9b3 | 2265 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2266 | { |
2267 | gfc_formal_arglist *formal; | |
2268 | gfc_formal_arglist *thunk_formal; | |
2269 | gfc_entry_list *el; | |
2270 | gfc_symbol *thunk_sym; | |
2271 | stmtblock_t body; | |
2272 | tree thunk_fndecl; | |
1b716045 | 2273 | tree tmp; |
b31f705b | 2274 | locus old_loc; |
1b716045 | 2275 | |
2276 | /* This should always be a toplevel function. */ | |
22d678e8 | 2277 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2278 | |
4671339c | 2279 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2280 | for (el = ns->entries; el; el = el->next) |
2281 | { | |
414c3a2c | 2282 | VEC(tree,gc) *args = NULL; |
2283 | VEC(tree,gc) *string_args = NULL; | |
2284 | ||
1b716045 | 2285 | thunk_sym = el->sym; |
2286 | ||
d896f9b3 | 2287 | build_function_decl (thunk_sym, global); |
1b716045 | 2288 | create_function_arglist (thunk_sym); |
2289 | ||
2290 | trans_function_start (thunk_sym); | |
2291 | ||
2292 | thunk_fndecl = thunk_sym->backend_decl; | |
2293 | ||
e5004242 | 2294 | gfc_init_block (&body); |
1b716045 | 2295 | |
f888a3fb | 2296 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2297 | tmp = build_int_cst (gfc_array_index_type, el->id); |
414c3a2c | 2298 | VEC_safe_push (tree, gc, args, tmp); |
1b716045 | 2299 | |
c6871095 | 2300 | if (thunk_sym->attr.function) |
2301 | { | |
2302 | if (gfc_return_by_reference (ns->proc_name)) | |
2303 | { | |
2304 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
414c3a2c | 2305 | VEC_safe_push (tree, gc, args, ref); |
c6871095 | 2306 | if (ns->proc_name->ts.type == BT_CHARACTER) |
1767a056 | 2307 | VEC_safe_push (tree, gc, args, DECL_CHAIN (ref)); |
c6871095 | 2308 | } |
2309 | } | |
2310 | ||
1b716045 | 2311 | for (formal = ns->proc_name->formal; formal; formal = formal->next) |
2312 | { | |
c6871095 | 2313 | /* Ignore alternate returns. */ |
2314 | if (formal->sym == NULL) | |
2315 | continue; | |
2316 | ||
1b716045 | 2317 | /* We don't have a clever way of identifying arguments, so resort to |
2318 | a brute-force search. */ | |
2319 | for (thunk_formal = thunk_sym->formal; | |
2320 | thunk_formal; | |
2321 | thunk_formal = thunk_formal->next) | |
2322 | { | |
2323 | if (thunk_formal->sym == formal->sym) | |
2324 | break; | |
2325 | } | |
2326 | ||
2327 | if (thunk_formal) | |
2328 | { | |
2329 | /* Pass the argument. */ | |
d95efb59 | 2330 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
414c3a2c | 2331 | VEC_safe_push (tree, gc, args, thunk_formal->sym->backend_decl); |
1b716045 | 2332 | if (formal->sym->ts.type == BT_CHARACTER) |
2333 | { | |
eeebe20b | 2334 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
414c3a2c | 2335 | VEC_safe_push (tree, gc, string_args, tmp); |
1b716045 | 2336 | } |
2337 | } | |
2338 | else | |
2339 | { | |
2340 | /* Pass NULL for a missing argument. */ | |
414c3a2c | 2341 | VEC_safe_push (tree, gc, args, null_pointer_node); |
1b716045 | 2342 | if (formal->sym->ts.type == BT_CHARACTER) |
2343 | { | |
7d3075f6 | 2344 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
414c3a2c | 2345 | VEC_safe_push (tree, gc, string_args, tmp); |
1b716045 | 2346 | } |
2347 | } | |
2348 | } | |
2349 | ||
2350 | /* Call the master function. */ | |
414c3a2c | 2351 | VEC_safe_splice (tree, gc, args, string_args); |
1b716045 | 2352 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2353 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2354 | if (ns->proc_name->attr.mixed_entry_master) |
2355 | { | |
2356 | tree union_decl, field; | |
2357 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2358 | ||
e60a6f7b | 2359 | union_decl = build_decl (input_location, |
2360 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2361 | TREE_TYPE (master_type)); |
2362 | DECL_ARTIFICIAL (union_decl) = 1; | |
2363 | DECL_EXTERNAL (union_decl) = 0; | |
2364 | TREE_PUBLIC (union_decl) = 0; | |
2365 | TREE_USED (union_decl) = 1; | |
2366 | layout_decl (union_decl, 0); | |
2367 | pushdecl (union_decl); | |
2368 | ||
2369 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2370 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2371 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2372 | gfc_add_expr_to_block (&body, tmp); |
2373 | ||
2374 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2375 | field; field = DECL_CHAIN (field)) |
c6871095 | 2376 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2377 | thunk_sym->result->name) == 0) | |
2378 | break; | |
2379 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2380 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2381 | TREE_TYPE (field), union_decl, field, | |
2382 | NULL_TREE); | |
2383 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
f75d6b8a | 2384 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2385 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2386 | tmp = build1_v (RETURN_EXPR, tmp); |
2387 | } | |
2388 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2389 | != void_type_node) | |
2390 | { | |
fd779e1d | 2391 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2392 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2393 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2394 | tmp = build1_v (RETURN_EXPR, tmp); |
2395 | } | |
1b716045 | 2396 | gfc_add_expr_to_block (&body, tmp); |
2397 | ||
2398 | /* Finish off this function and send it for code generation. */ | |
2399 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2400 | tmp = getdecls (); |
1b716045 | 2401 | poplevel (1, 0, 1); |
2402 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; | |
e5004242 | 2403 | DECL_SAVED_TREE (thunk_fndecl) |
2404 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2405 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2406 | |
2407 | /* Output the GENERIC tree. */ | |
2408 | dump_function (TDI_original, thunk_fndecl); | |
2409 | ||
2410 | /* Store the end of the function, so that we get good line number | |
2411 | info for the epilogue. */ | |
2412 | cfun->function_end_locus = input_location; | |
2413 | ||
2414 | /* We're leaving the context of this function, so zap cfun. | |
2415 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2416 | tree_rest_of_compilation. */ | |
87d4aa85 | 2417 | set_cfun (NULL); |
1b716045 | 2418 | |
2419 | current_function_decl = NULL_TREE; | |
2420 | ||
bb982f66 | 2421 | cgraph_finalize_function (thunk_fndecl, true); |
1b716045 | 2422 | |
2423 | /* We share the symbols in the formal argument list with other entry | |
2424 | points and the master function. Clear them so that they are | |
2425 | recreated for each function. */ | |
2426 | for (formal = thunk_sym->formal; formal; formal = formal->next) | |
c6871095 | 2427 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2428 | { | |
2429 | formal->sym->backend_decl = NULL_TREE; | |
2430 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2431 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2432 | } |
2433 | ||
2434 | if (thunk_sym->attr.function) | |
1b716045 | 2435 | { |
c6871095 | 2436 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2437 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2438 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2439 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2440 | } |
2441 | } | |
b31f705b | 2442 | |
4671339c | 2443 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2444 | } |
2445 | ||
2446 | ||
2447 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2448 | points. If global is true, generate the function in the global binding |
2449 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2450 | |
2451 | void | |
d896f9b3 | 2452 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2453 | { |
2454 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2455 | build_function_decl (ns->proc_name, global); |
1b716045 | 2456 | |
f888a3fb | 2457 | /* Compile the entry thunks. */ |
1b716045 | 2458 | if (ns->entries) |
d896f9b3 | 2459 | build_entry_thunks (ns, global); |
1b716045 | 2460 | |
2461 | /* Now create the read argument list. */ | |
2462 | create_function_arglist (ns->proc_name); | |
2463 | } | |
2464 | ||
c750cc52 | 2465 | /* Return the decl used to hold the function return value. If |
3350e716 | 2466 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2467 | |
2468 | tree | |
c750cc52 | 2469 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2470 | { |
c750cc52 | 2471 | tree decl; |
2472 | tree length; | |
2473 | tree this_fake_result_decl; | |
2474 | tree this_function_decl; | |
4ee9c684 | 2475 | |
2476 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2477 | ||
c750cc52 | 2478 | if (parent_flag) |
2479 | { | |
2480 | this_fake_result_decl = parent_fake_result_decl; | |
2481 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2482 | } | |
2483 | else | |
2484 | { | |
2485 | this_fake_result_decl = current_fake_result_decl; | |
2486 | this_function_decl = current_function_decl; | |
2487 | } | |
2488 | ||
c6871095 | 2489 | if (sym |
c750cc52 | 2490 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2491 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2492 | && sym != sym->ns->proc_name) |
2493 | { | |
d4163395 | 2494 | tree t = NULL, var; |
c750cc52 | 2495 | if (this_fake_result_decl != NULL) |
2496 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2497 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2498 | break; | |
2499 | if (t) | |
2500 | return TREE_VALUE (t); | |
c750cc52 | 2501 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2502 | ||
2503 | if (parent_flag) | |
2504 | this_fake_result_decl = parent_fake_result_decl; | |
2505 | else | |
2506 | this_fake_result_decl = current_fake_result_decl; | |
2507 | ||
d4163395 | 2508 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2509 | { |
2510 | tree field; | |
2511 | ||
2512 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2513 | field; field = DECL_CHAIN (field)) |
c6871095 | 2514 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2515 | sym->name) == 0) | |
2516 | break; | |
2517 | ||
2518 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2519 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2520 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2521 | } |
c750cc52 | 2522 | |
2523 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2524 | if (parent_flag) | |
2525 | gfc_add_decl_to_parent_function (var); | |
2526 | else | |
2527 | gfc_add_decl_to_function (var); | |
2528 | ||
d4163395 | 2529 | SET_DECL_VALUE_EXPR (var, decl); |
2530 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2531 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2532 | |
2533 | TREE_CHAIN (this_fake_result_decl) | |
2534 | = tree_cons (get_identifier (sym->name), var, | |
2535 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2536 | return var; |
c6871095 | 2537 | } |
2538 | ||
c750cc52 | 2539 | if (this_fake_result_decl != NULL_TREE) |
2540 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2541 | |
2542 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2543 | sym is NULL. */ | |
2544 | if (!sym) | |
2545 | return NULL_TREE; | |
2546 | ||
d4163395 | 2547 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2548 | { |
eeebe20b | 2549 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2550 | length = gfc_create_string_length (sym); |
2551 | else | |
eeebe20b | 2552 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2553 | if (TREE_CODE (length) == VAR_DECL |
2554 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2555 | gfc_add_decl_to_function (length); |
4ee9c684 | 2556 | } |
2557 | ||
2558 | if (gfc_return_by_reference (sym)) | |
2559 | { | |
c750cc52 | 2560 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2561 | |
c750cc52 | 2562 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2563 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2564 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2565 | |
2566 | TREE_USED (decl) = 1; | |
2567 | if (sym->as) | |
2568 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2569 | } | |
2570 | else | |
2571 | { | |
2572 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2573 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2574 | |
3350e716 | 2575 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2576 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2577 | VAR_DECL, get_identifier (name), |
3350e716 | 2578 | gfc_sym_type (sym)); |
2579 | else | |
1e71b314 | 2580 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2581 | VAR_DECL, get_identifier (name), |
3350e716 | 2582 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2583 | DECL_ARTIFICIAL (decl) = 1; |
2584 | DECL_EXTERNAL (decl) = 0; | |
2585 | TREE_PUBLIC (decl) = 0; | |
2586 | TREE_USED (decl) = 1; | |
764f1175 | 2587 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2588 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2589 | |
2590 | layout_decl (decl, 0); | |
2591 | ||
c750cc52 | 2592 | if (parent_flag) |
2593 | gfc_add_decl_to_parent_function (decl); | |
2594 | else | |
2595 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2596 | } |
2597 | ||
c750cc52 | 2598 | if (parent_flag) |
2599 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2600 | else | |
2601 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2602 | |
2603 | return decl; | |
2604 | } | |
2605 | ||
2606 | ||
2607 | /* Builds a function decl. The remaining parameters are the types of the | |
2608 | function arguments. Negative nargs indicates a varargs function. */ | |
2609 | ||
8ce86007 | 2610 | static tree |
2611 | build_library_function_decl_1 (tree name, const char *spec, | |
2612 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2613 | { |
5edc3af9 | 2614 | VEC(tree,gc) *arglist; |
4ee9c684 | 2615 | tree fntype; |
2616 | tree fndecl; | |
4ee9c684 | 2617 | int n; |
2618 | ||
2619 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2620 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2621 | |
4ee9c684 | 2622 | /* Create a list of the argument types. */ |
5edc3af9 | 2623 | arglist = VEC_alloc (tree, gc, abs (nargs)); |
2624 | for (n = abs (nargs); n > 0; n--) | |
4ee9c684 | 2625 | { |
5edc3af9 | 2626 | tree argtype = va_arg (p, tree); |
2627 | VEC_quick_push (tree, arglist, argtype); | |
4ee9c684 | 2628 | } |
2629 | ||
2630 | /* Build the function type and decl. */ | |
5edc3af9 | 2631 | if (nargs >= 0) |
2632 | fntype = build_function_type_vec (rettype, arglist); | |
2633 | else | |
2634 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2635 | if (spec) |
2636 | { | |
2637 | tree attr_args = build_tree_list (NULL_TREE, | |
2638 | build_string (strlen (spec), spec)); | |
2639 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2640 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2641 | fntype = build_type_attribute_variant (fntype, attrs); | |
2642 | } | |
e60a6f7b | 2643 | fndecl = build_decl (input_location, |
2644 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2645 | |
2646 | /* Mark this decl as external. */ | |
2647 | DECL_EXTERNAL (fndecl) = 1; | |
2648 | TREE_PUBLIC (fndecl) = 1; | |
2649 | ||
4ee9c684 | 2650 | pushdecl (fndecl); |
2651 | ||
b2c4af5e | 2652 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2653 | |
2654 | return fndecl; | |
2655 | } | |
2656 | ||
8ce86007 | 2657 | /* Builds a function decl. The remaining parameters are the types of the |
2658 | function arguments. Negative nargs indicates a varargs function. */ | |
2659 | ||
2660 | tree | |
2661 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2662 | { | |
2663 | tree ret; | |
2664 | va_list args; | |
2665 | va_start (args, nargs); | |
2666 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2667 | va_end (args); | |
2668 | return ret; | |
2669 | } | |
2670 | ||
2671 | /* Builds a function decl. The remaining parameters are the types of the | |
2672 | function arguments. Negative nargs indicates a varargs function. | |
2673 | The SPEC parameter specifies the function argument and return type | |
2674 | specification according to the fnspec function type attribute. */ | |
2675 | ||
4bf69bc3 | 2676 | tree |
8ce86007 | 2677 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2678 | tree rettype, int nargs, ...) | |
2679 | { | |
2680 | tree ret; | |
2681 | va_list args; | |
2682 | va_start (args, nargs); | |
2683 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2684 | va_end (args); | |
2685 | return ret; | |
2686 | } | |
2687 | ||
4ee9c684 | 2688 | static void |
2689 | gfc_build_intrinsic_function_decls (void) | |
2690 | { | |
90ba9145 | 2691 | tree gfc_int4_type_node = gfc_get_int_type (4); |
2692 | tree gfc_int8_type_node = gfc_get_int_type (8); | |
920e54ef | 2693 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 2694 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 2695 | tree pchar1_type_node = gfc_get_pchar_type (1); |
2696 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 2697 | |
4ee9c684 | 2698 | /* String functions. */ |
241ecdc7 | 2699 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
2700 | get_identifier (PREFIX("compare_string")), "..R.R", | |
2701 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
2702 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2703 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 2704 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 2705 | |
2706 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
2707 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
2708 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
2709 | gfc_charlen_type_node, pchar1_type_node, | |
2710 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 2711 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 2712 | |
2713 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
2714 | get_identifier (PREFIX("string_len_trim")), "..R", | |
2715 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2716 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 2717 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 2718 | |
2719 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
2720 | get_identifier (PREFIX("string_index")), "..R.R.", | |
2721 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2722 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2723 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 2724 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 2725 | |
2726 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
2727 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
2728 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2729 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2730 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 2731 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 2732 | |
2733 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
2734 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
2735 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2736 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2737 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 2738 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 2739 | |
2740 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
2741 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
2742 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2743 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
2744 | pchar1_type_node); | |
2745 | ||
2746 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
2747 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
2748 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2749 | build_pointer_type (pchar1_type_node), integer_type_node, | |
2750 | integer_type_node); | |
2751 | ||
2752 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
2753 | get_identifier (PREFIX("adjustl")), ".W.R", | |
2754 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2755 | pchar1_type_node); | |
bc351485 | 2756 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 2757 | |
2758 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
2759 | get_identifier (PREFIX("adjustr")), ".W.R", | |
2760 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2761 | pchar1_type_node); | |
bc351485 | 2762 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 2763 | |
2764 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
2765 | get_identifier (PREFIX("select_string")), ".R.R.", | |
2766 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2767 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 2768 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 2769 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 2770 | |
2771 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2772 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
2773 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
2774 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2775 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 2776 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 2777 | |
2778 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2779 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
2780 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
2781 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
2782 | pchar4_type_node); | |
bc351485 | 2783 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 2784 | |
2785 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2786 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
2787 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2788 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 2789 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 2790 | |
2791 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
2792 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
2793 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2794 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2795 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 2796 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 2797 | |
2798 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
2799 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
2800 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2801 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2802 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 2803 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 2804 | |
2805 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
2806 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
2807 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2808 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2809 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 2810 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 2811 | |
2812 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2813 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
2814 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2815 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
2816 | pchar4_type_node); | |
2817 | ||
2818 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
2819 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
2820 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2821 | build_pointer_type (pchar4_type_node), integer_type_node, | |
2822 | integer_type_node); | |
2823 | ||
2824 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
2825 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
2826 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2827 | pchar4_type_node); | |
bc351485 | 2828 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 2829 | |
2830 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
2831 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
2832 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2833 | pchar4_type_node); | |
bc351485 | 2834 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 2835 | |
2836 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2837 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
2838 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2839 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 2840 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 2841 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 2842 | |
2843 | ||
2844 | /* Conversion between character kinds. */ | |
2845 | ||
241ecdc7 | 2846 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
2847 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
2848 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
2849 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 2850 | |
241ecdc7 | 2851 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
2852 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
2853 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
2854 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 2855 | |
40b806de | 2856 | /* Misc. functions. */ |
5fcc6ec2 | 2857 | |
241ecdc7 | 2858 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
2859 | get_identifier (PREFIX("ttynam")), ".W", | |
2860 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2861 | integer_type_node); | |
2862 | ||
2863 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
2864 | get_identifier (PREFIX("fdate")), ".W", | |
2865 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
2866 | ||
2867 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
2868 | get_identifier (PREFIX("ctime")), ".W", | |
2869 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
2870 | gfc_int8_type_node); | |
2871 | ||
2872 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
2873 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
2874 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 2875 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 2876 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 2877 | |
2878 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
2879 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
2880 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 2881 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 2882 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 2883 | |
2884 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
2885 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
2886 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
2887 | pvoid_type_node); | |
537824d1 | 2888 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 2889 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 2890 | |
4ee9c684 | 2891 | /* Power functions. */ |
76834664 | 2892 | { |
920e54ef | 2893 | tree ctype, rtype, itype, jtype; |
2894 | int rkind, ikind, jkind; | |
2895 | #define NIKINDS 3 | |
2896 | #define NRKINDS 4 | |
2897 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
2898 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
2899 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
2900 | ||
2901 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 2902 | { |
920e54ef | 2903 | itype = gfc_get_int_type (ikinds[ikind]); |
2904 | ||
2905 | for (jkind=0; jkind < NIKINDS; jkind++) | |
2906 | { | |
2907 | jtype = gfc_get_int_type (ikinds[jkind]); | |
2908 | if (itype && jtype) | |
2909 | { | |
2910 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
2911 | ikinds[jkind]); | |
2912 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
2913 | gfc_build_library_function_decl (get_identifier (name), | |
2914 | jtype, 2, jtype, itype); | |
2177d98b | 2915 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 2916 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 2917 | } |
2918 | } | |
2919 | ||
2920 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 2921 | { |
920e54ef | 2922 | rtype = gfc_get_real_type (rkinds[rkind]); |
2923 | if (rtype && itype) | |
2924 | { | |
2925 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
2926 | ikinds[ikind]); | |
2927 | gfor_fndecl_math_powi[rkind][ikind].real = | |
2928 | gfc_build_library_function_decl (get_identifier (name), | |
2929 | rtype, 2, rtype, itype); | |
2177d98b | 2930 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 2931 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 2932 | } |
2933 | ||
2934 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
2935 | if (ctype && itype) | |
2936 | { | |
2937 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
2938 | ikinds[ikind]); | |
2939 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
2940 | gfc_build_library_function_decl (get_identifier (name), | |
2941 | ctype, 2,ctype, itype); | |
2177d98b | 2942 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 2943 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 2944 | } |
76834664 | 2945 | } |
2946 | } | |
920e54ef | 2947 | #undef NIKINDS |
2948 | #undef NRKINDS | |
76834664 | 2949 | } |
2950 | ||
241ecdc7 | 2951 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
2952 | get_identifier (PREFIX("ishftc4")), | |
2953 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
2954 | gfc_int4_type_node); | |
bc351485 | 2955 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
2956 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
241ecdc7 | 2957 | |
2958 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( | |
2959 | get_identifier (PREFIX("ishftc8")), | |
2960 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
2961 | gfc_int4_type_node); | |
bc351485 | 2962 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
2963 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 2964 | |
920e54ef | 2965 | if (gfc_int16_type_node) |
bc351485 | 2966 | { |
2967 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 2968 | get_identifier (PREFIX("ishftc16")), |
2969 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
2970 | gfc_int4_type_node); | |
bc351485 | 2971 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
2972 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
2973 | } | |
920e54ef | 2974 | |
4e8e57b0 | 2975 | /* BLAS functions. */ |
2976 | { | |
36c921b9 | 2977 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 2978 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
2979 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
2980 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
2981 | tree pz = build_pointer_type | |
2982 | (gfc_get_complex_type (gfc_default_double_kind)); | |
2983 | ||
2984 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
2985 | (get_identifier | |
2986 | (gfc_option.flag_underscoring ? "sgemm_" | |
2987 | : "sgemm"), | |
2988 | void_type_node, 15, pchar_type_node, | |
2989 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 2990 | ps, pint, ps, ps, pint, integer_type_node, |
2991 | integer_type_node); | |
4e8e57b0 | 2992 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
2993 | (get_identifier | |
2994 | (gfc_option.flag_underscoring ? "dgemm_" | |
2995 | : "dgemm"), | |
2996 | void_type_node, 15, pchar_type_node, | |
2997 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 2998 | pd, pint, pd, pd, pint, integer_type_node, |
2999 | integer_type_node); | |
4e8e57b0 | 3000 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3001 | (get_identifier | |
3002 | (gfc_option.flag_underscoring ? "cgemm_" | |
3003 | : "cgemm"), | |
3004 | void_type_node, 15, pchar_type_node, | |
3005 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3006 | pc, pint, pc, pc, pint, integer_type_node, |
3007 | integer_type_node); | |
4e8e57b0 | 3008 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3009 | (get_identifier | |
3010 | (gfc_option.flag_underscoring ? "zgemm_" | |
3011 | : "zgemm"), | |
3012 | void_type_node, 15, pchar_type_node, | |
3013 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3014 | pz, pint, pz, pz, pint, integer_type_node, |
3015 | integer_type_node); | |
4e8e57b0 | 3016 | } |
3017 | ||
4ee9c684 | 3018 | /* Other functions. */ |
241ecdc7 | 3019 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3020 | get_identifier (PREFIX("size0")), ".R", | |
3021 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3022 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3023 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3024 | |
3025 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3026 | get_identifier (PREFIX("size1")), ".R", | |
3027 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3028 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3029 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3030 | |
3031 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3032 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3033 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3034 | } |
3035 | ||
3036 | ||
3037 | /* Make prototypes for runtime library functions. */ | |
3038 | ||
3039 | void | |
3040 | gfc_build_builtin_function_decls (void) | |
3041 | { | |
90ba9145 | 3042 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3043 | |
241ecdc7 | 3044 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3045 | get_identifier (PREFIX("stop_numeric")), | |
3046 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3047 | /* STOP doesn't return. */ |
98ccec97 | 3048 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3049 | ||
dff2ea5f | 3050 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3051 | get_identifier (PREFIX("stop_numeric_f08")), | |
3052 | void_type_node, 1, gfc_int4_type_node); | |
3053 | /* STOP doesn't return. */ | |
3054 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3055 | ||
241ecdc7 | 3056 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3057 | get_identifier (PREFIX("stop_string")), ".R.", | |
3058 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3059 | /* STOP doesn't return. */ |
241ecdc7 | 3060 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3061 | |
241ecdc7 | 3062 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3063 | get_identifier (PREFIX("error_stop_numeric")), | |
3064 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3065 | /* ERROR STOP doesn't return. */ |
3066 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3067 | ||
241ecdc7 | 3068 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3069 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3070 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3071 | /* ERROR STOP doesn't return. */ |
3072 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3073 | ||
241ecdc7 | 3074 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3075 | get_identifier (PREFIX("pause_numeric")), | |
3076 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3077 | |
241ecdc7 | 3078 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3079 | get_identifier (PREFIX("pause_string")), ".R.", | |
3080 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3081 | |
241ecdc7 | 3082 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3083 | get_identifier (PREFIX("runtime_error")), ".R", | |
3084 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3085 | /* The runtime_error function does not return. */ |
3086 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3087 | |
241ecdc7 | 3088 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3089 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3090 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3091 | /* The runtime_error_at function does not return. */ |
3092 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
3093 | ||
241ecdc7 | 3094 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3095 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3096 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3097 | ||
3098 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3099 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3100 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3101 | pchar_type_node); | |
3102 | ||
3103 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3104 | get_identifier (PREFIX("os_error")), ".R", | |
3105 | void_type_node, 1, pchar_type_node); | |
9915365e | 3106 | /* The runtime_error function does not return. */ |
3107 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3108 | ||
241ecdc7 | 3109 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3110 | get_identifier (PREFIX("set_args")), | |
3111 | void_type_node, 2, integer_type_node, | |
3112 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3113 | |
241ecdc7 | 3114 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3115 | get_identifier (PREFIX("set_fpe")), | |
3116 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3117 | |
56c7c2d7 | 3118 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3119 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3120 | get_identifier (PREFIX("set_options")), "..R", | |
3121 | void_type_node, 2, integer_type_node, | |
3122 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3123 | |
241ecdc7 | 3124 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3125 | get_identifier (PREFIX("set_convert")), | |
3126 | void_type_node, 1, integer_type_node); | |
15774a8b | 3127 | |
241ecdc7 | 3128 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3129 | get_identifier (PREFIX("set_record_marker")), | |
3130 | void_type_node, 1, integer_type_node); | |
f23886ab | 3131 | |
241ecdc7 | 3132 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3133 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3134 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3135 | |
8ce86007 | 3136 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3137 | get_identifier (PREFIX("internal_pack")), ".r", |
3138 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3139 | |
8ce86007 | 3140 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3141 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3142 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3143 | ||
3144 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3145 | get_identifier (PREFIX("associated")), ".RR", | |
3146 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3147 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3148 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3149 | |
70b5944a | 3150 | /* Coarray library calls. */ |
3151 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
3152 | { | |
3153 | tree pint_type, pppchar_type; | |
3154 | ||
3155 | pint_type = build_pointer_type (integer_type_node); | |
3156 | pppchar_type | |
3157 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3158 | ||
3159 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3160 | get_identifier (PREFIX("caf_init")), void_type_node, | |
3161 | 4, pint_type, pppchar_type, pint_type, pint_type); | |
3162 | ||
3163 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3164 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3165 | ||
a961ca30 | 3166 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3167 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3168 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3169 | pchar_type_node, integer_type_node); |
3170 | ||
3171 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3172 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3173 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3174 | |
70b5944a | 3175 | gfor_fndecl_caf_critical = gfc_build_library_function_decl ( |
3176 | get_identifier (PREFIX("caf_critical")), void_type_node, 0); | |
3177 | ||
3178 | gfor_fndecl_caf_end_critical = gfc_build_library_function_decl ( | |
3179 | get_identifier (PREFIX("caf_end_critical")), void_type_node, 0); | |
3180 | ||
3181 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3182 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
3183 | 3, pint_type, build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3184 | |
3185 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3186 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3187 | 5, integer_type_node, pint_type, pint_type, | |
3188 | build_pointer_type (pchar_type_node), integer_type_node); | |
70b5944a | 3189 | |
3190 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3191 | get_identifier (PREFIX("caf_error_stop")), | |
3192 | void_type_node, 1, gfc_int4_type_node); | |
3193 | /* CAF's ERROR STOP doesn't return. */ | |
3194 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3195 | ||
3196 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3197 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3198 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3199 | /* CAF's ERROR STOP doesn't return. */ | |
3200 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
3201 | } | |
3202 | ||
4ee9c684 | 3203 | gfc_build_intrinsic_function_decls (); |
3204 | gfc_build_intrinsic_lib_fndecls (); | |
3205 | gfc_build_io_library_fndecls (); | |
3206 | } | |
3207 | ||
3208 | ||
231e961a | 3209 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3210 | |
c5faa799 | 3211 | static void |
3212 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3213 | gfc_wrapped_block *block) | |
4ee9c684 | 3214 | { |
c5faa799 | 3215 | stmtblock_t init; |
4ee9c684 | 3216 | |
b9c7fce7 | 3217 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3218 | |
c5faa799 | 3219 | gfc_start_block (&init); |
4ee9c684 | 3220 | |
3221 | /* Evaluate the string length expression. */ | |
c5faa799 | 3222 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3223 | |
c5faa799 | 3224 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3225 | |
c5faa799 | 3226 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3227 | } |
3228 | ||
3229 | ||
3230 | /* Allocate and cleanup an automatic character variable. */ | |
3231 | ||
c5faa799 | 3232 | static void |
3233 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3234 | { |
c5faa799 | 3235 | stmtblock_t init; |
4ee9c684 | 3236 | tree decl; |
4ee9c684 | 3237 | tree tmp; |
3238 | ||
22d678e8 | 3239 | gcc_assert (sym->backend_decl); |
eeebe20b | 3240 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3241 | |
3714c8b6 | 3242 | gfc_init_block (&init); |
4ee9c684 | 3243 | |
3244 | /* Evaluate the string length expression. */ | |
c5faa799 | 3245 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3246 | |
c5faa799 | 3247 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3248 | |
4ee9c684 | 3249 | decl = sym->backend_decl; |
3250 | ||
afcf285e | 3251 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3252 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3253 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3254 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3255 | |
c5faa799 | 3256 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3257 | } |
3258 | ||
c8f1568f | 3259 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3260 | ||
c5faa799 | 3261 | static void |
3262 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3263 | { |
c5faa799 | 3264 | stmtblock_t init; |
c8f1568f | 3265 | |
3266 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3267 | gfc_start_block (&init); |
c8f1568f | 3268 | |
3269 | /* Set the initial value to length. See the comments in | |
3270 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3271 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3272 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3273 | |
c5faa799 | 3274 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3275 | } |
3276 | ||
d4163395 | 3277 | static void |
3278 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3279 | { | |
3280 | tree t = *tp, var, val; | |
3281 | ||
3282 | if (t == NULL || t == error_mark_node) | |
3283 | return; | |
3284 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3285 | return; | |
3286 | ||
3287 | if (TREE_CODE (t) == SAVE_EXPR) | |
3288 | { | |
3289 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3290 | { | |
3291 | *tp = TREE_OPERAND (t, 0); | |
3292 | return; | |
3293 | } | |
3294 | val = TREE_OPERAND (t, 0); | |
3295 | } | |
3296 | else | |
3297 | val = t; | |
3298 | ||
3299 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3300 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3301 | gfc_add_modify (body, var, val); |
d4163395 | 3302 | if (TREE_CODE (t) == SAVE_EXPR) |
3303 | TREE_OPERAND (t, 0) = var; | |
3304 | *tp = var; | |
3305 | } | |
3306 | ||
3307 | static void | |
3308 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3309 | { | |
3310 | tree t; | |
3311 | ||
3312 | if (type == NULL || type == error_mark_node) | |
3313 | return; | |
3314 | ||
3315 | type = TYPE_MAIN_VARIANT (type); | |
3316 | ||
3317 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3318 | { | |
3319 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3320 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3321 | ||
3322 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3323 | { | |
3324 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3325 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3326 | } | |
3327 | } | |
3328 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3329 | { | |
3330 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3331 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3332 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3333 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3334 | ||
3335 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3336 | { | |
3337 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3338 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3339 | } | |
3340 | } | |
3341 | } | |
3342 | ||
3343 | /* Make sure all type sizes and array domains are either constant, | |
3344 | or variable or parameter decls. This is a simplified variant | |
3345 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3346 | variables in the expressions have been gimplified yet. | |
3347 | As type sizes and domains for various variable length arrays | |
3348 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3349 | time, without this routine gimplify_type_sizes in the middle-end | |
3350 | could result in the type sizes being gimplified earlier than where | |
3351 | those variables are initialized. */ | |
3352 | ||
3353 | void | |
3354 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3355 | { | |
3356 | tree type = TREE_TYPE (sym->backend_decl); | |
3357 | ||
3358 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3359 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3360 | { | |
3361 | if (! current_fake_result_decl) | |
3362 | return; | |
3363 | ||
3364 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3365 | } | |
3366 | ||
3367 | while (POINTER_TYPE_P (type)) | |
3368 | type = TREE_TYPE (type); | |
3369 | ||
3370 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3371 | { | |
3372 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3373 | ||
3374 | while (POINTER_TYPE_P (etype)) | |
3375 | etype = TREE_TYPE (etype); | |
3376 | ||
3377 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3378 | } | |
3379 | ||
3380 | gfc_trans_vla_type_sizes_1 (type, body); | |
3381 | } | |
3382 | ||
4ee9c684 | 3383 | |
f0d4969f | 3384 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3385 | and using trans_assignment to do the work. Set dealloc to false |
3386 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3387 | void |
3388 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3389 | { |
f0d4969f | 3390 | gfc_expr *e; |
87114d2e | 3391 | tree tmp; |
3392 | tree present; | |
3393 | ||
c5faa799 | 3394 | gcc_assert (block); |
3395 | ||
f0d4969f | 3396 | gcc_assert (!sym->attr.allocatable); |
3397 | gfc_set_sym_referenced (sym); | |
3398 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3399 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3400 | if (sym->attr.dummy && (sym->attr.optional |
3401 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3402 | { |
f0d4969f | 3403 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3404 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3405 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3406 | } |
c5faa799 | 3407 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3408 | gfc_free_expr (e); |
87114d2e | 3409 | } |
3410 | ||
3411 | ||
8714fc76 | 3412 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3413 | them their default initializer, if they do not have allocatable | |
3414 | components, they have their allocatable components deallocated. */ | |
3415 | ||
c5faa799 | 3416 | static void |
3417 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3418 | { |
c5faa799 | 3419 | stmtblock_t init; |
f0d4969f | 3420 | gfc_formal_arglist *f; |
8714fc76 | 3421 | tree tmp; |
5907c3ea | 3422 | tree present; |
f0d4969f | 3423 | |
c5faa799 | 3424 | gfc_init_block (&init); |
f0d4969f | 3425 | for (f = proc_sym->formal; f; f = f->next) |
3426 | if (f->sym && f->sym->attr.intent == INTENT_OUT | |
c49db15e | 3427 | && !f->sym->attr.pointer |
3428 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3429 | { |
c38054a8 | 3430 | if (f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) |
8714fc76 | 3431 | { |
eeebe20b | 3432 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, |
8714fc76 | 3433 | f->sym->backend_decl, |
3434 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3435 | |
c38054a8 | 3436 | if (f->sym->attr.optional |
3437 | || f->sym->ns->proc_name->attr.entry_master) | |
3438 | { | |
3439 | present = gfc_conv_expr_present (f->sym); | |
2be9d8f1 | 3440 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), |
3441 | present, tmp, | |
3442 | build_empty_stmt (input_location)); | |
c38054a8 | 3443 | } |
5907c3ea | 3444 | |
c5faa799 | 3445 | gfc_add_expr_to_block (&init, tmp); |
8714fc76 | 3446 | } |
c38054a8 | 3447 | else if (f->sym->value) |
c5faa799 | 3448 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3449 | } |
c56d57d6 | 3450 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3451 | && f->sym->ts.type == BT_CLASS | |
3452 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
3453 | && CLASS_DATA (f->sym)->ts.u.derived->attr.alloc_comp) | |
3454 | { | |
3455 | tree decl = build_fold_indirect_ref_loc (input_location, | |
3456 | f->sym->backend_decl); | |
3457 | tmp = CLASS_DATA (f->sym)->backend_decl; | |
3458 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
3459 | TREE_TYPE (tmp), decl, tmp, NULL_TREE); | |
3460 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3461 | tmp = gfc_deallocate_alloc_comp (CLASS_DATA (f->sym)->ts.u.derived, | |
3462 | tmp, | |
3463 | CLASS_DATA (f->sym)->as ? | |
3464 | CLASS_DATA (f->sym)->as->rank : 0); | |
3465 | ||
3466 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3467 | { | |
3468 | present = gfc_conv_expr_present (f->sym); | |
3469 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3470 | present, tmp, | |
3471 | build_empty_stmt (input_location)); | |
3472 | } | |
3473 | ||
3474 | gfc_add_expr_to_block (&init, tmp); | |
3475 | } | |
f0d4969f | 3476 | |
c5faa799 | 3477 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3478 | } |
3479 | ||
87114d2e | 3480 | |
4ee9c684 | 3481 | /* Generate function entry and exit code, and add it to the function body. |
3482 | This includes: | |
f888a3fb | 3483 | Allocation and initialization of array variables. |
4ee9c684 | 3484 | Allocation of character string variables. |
c8f1568f | 3485 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3486 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3487 | Initialization of ASSOCIATE names. |
0a96a7cc | 3488 | Automatic deallocation. */ |
4ee9c684 | 3489 | |
89ac8ba1 | 3490 | void |
3491 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3492 | { |
3493 | locus loc; | |
3494 | gfc_symbol *sym; | |
d4163395 | 3495 | gfc_formal_arglist *f; |
c5faa799 | 3496 | stmtblock_t tmpblock; |
25dd7350 | 3497 | bool seen_trans_deferred_array = false; |
617125a6 | 3498 | tree tmp = NULL; |
3499 | gfc_expr *e; | |
3500 | gfc_se se; | |
3501 | stmtblock_t init; | |
4ee9c684 | 3502 | |
3503 | /* Deal with implicit return variables. Explicit return variables will | |
3504 | already have been added. */ | |
3505 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3506 | { | |
3507 | if (!current_fake_result_decl) | |
3508 | { | |
c6871095 | 3509 | gfc_entry_list *el = NULL; |
3510 | if (proc_sym->attr.entry_master) | |
3511 | { | |
3512 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3513 | if (el->sym != el->sym->result) | |
3514 | break; | |
3515 | } | |
fa7b6574 | 3516 | /* TODO: move to the appropriate place in resolve.c. */ |
3517 | if (warn_return_type && el == NULL) | |
3518 | gfc_warning ("Return value of function '%s' at %L not set", | |
3519 | proc_sym->name, &proc_sym->declared_at); | |
4ee9c684 | 3520 | } |
c6871095 | 3521 | else if (proc_sym->as) |
4ee9c684 | 3522 | { |
d4163395 | 3523 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3524 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3525 | |
3526 | /* An automatic character length, pointer array result. */ | |
3527 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3528 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3529 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3530 | } |
3531 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3532 | { | |
617125a6 | 3533 | if (proc_sym->ts.deferred) |
3534 | { | |
3535 | tmp = NULL; | |
da2c4122 | 3536 | gfc_save_backend_locus (&loc); |
3537 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3538 | gfc_start_block (&init); |
3539 | /* Zero the string length on entry. */ | |
3540 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3541 | build_int_cst (gfc_charlen_type_node, 0)); | |
3542 | /* Null the pointer. */ | |
3543 | e = gfc_lval_expr_from_sym (proc_sym); | |
3544 | gfc_init_se (&se, NULL); | |
3545 | se.want_pointer = 1; | |
3546 | gfc_conv_expr (&se, e); | |
3547 | gfc_free_expr (e); | |
3548 | tmp = se.expr; | |
3549 | gfc_add_modify (&init, tmp, | |
3550 | fold_convert (TREE_TYPE (se.expr), | |
3551 | null_pointer_node)); | |
da2c4122 | 3552 | gfc_restore_backend_locus (&loc); |
617125a6 | 3553 | |
3554 | /* Pass back the string length on exit. */ | |
3555 | tmp = proc_sym->ts.u.cl->passed_length; | |
3556 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3557 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3558 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3559 | gfc_charlen_type_node, tmp, | |
3560 | proc_sym->ts.u.cl->backend_decl); | |
3561 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3562 | } | |
3563 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 3564 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3565 | } |
3566 | else | |
bdaed7d2 | 3567 | gcc_assert (gfc_option.flag_f2c |
3568 | && proc_sym->ts.type == BT_COMPLEX); | |
4ee9c684 | 3569 | } |
3570 | ||
87114d2e | 3571 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
3572 | should be done here so that the offsets and lbounds of arrays | |
3573 | are available. */ | |
da2c4122 | 3574 | gfc_save_backend_locus (&loc); |
3575 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 3576 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 3577 | gfc_restore_backend_locus (&loc); |
87114d2e | 3578 | |
4ee9c684 | 3579 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
3580 | { | |
2294b616 | 3581 | bool sym_has_alloc_comp = (sym->ts.type == BT_DERIVED) |
eeebe20b | 3582 | && sym->ts.u.derived->attr.alloc_comp; |
8f3f9eab | 3583 | if (sym->assoc) |
3c82e013 | 3584 | continue; |
3585 | ||
a56d63bc | 3586 | if (sym->attr.subref_array_pointer |
3587 | && GFC_DECL_SPAN (sym->backend_decl) | |
3588 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
3589 | { | |
3590 | gfc_init_block (&tmpblock); | |
3591 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
3592 | build_int_cst (gfc_array_index_type, 0)); | |
3593 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3594 | NULL_TREE); | |
3595 | } | |
3596 | ||
7a777e43 | 3597 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 3598 | { |
f7a6fca4 | 3599 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ |
3600 | array_type tmp = sym->as->type; | |
3601 | if (tmp == AS_ASSUMED_SIZE && sym->as->cp_was_assumed) | |
3602 | tmp = AS_EXPLICIT; | |
3603 | switch (tmp) | |
4ee9c684 | 3604 | { |
3605 | case AS_EXPLICIT: | |
3606 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3607 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3608 | else if (sym->attr.pointer || sym->attr.allocatable) |
3609 | { | |
3610 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 3611 | { |
3612 | gfc_save_backend_locus (&loc); | |
3613 | gfc_set_backend_locus (&sym->declared_at); | |
3614 | gfc_trans_static_array_pointer (sym); | |
3615 | gfc_restore_backend_locus (&loc); | |
3616 | } | |
4ee9c684 | 3617 | else |
25dd7350 | 3618 | { |
3619 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3620 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3621 | } |
4ee9c684 | 3622 | } |
7c7db7f6 | 3623 | else if (sym->attr.codimension && TREE_STATIC (sym->backend_decl)) |
3624 | { | |
3625 | gfc_init_block (&tmpblock); | |
3626 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
3627 | &tmpblock, sym); | |
3628 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3629 | NULL_TREE); | |
3630 | continue; | |
3631 | } | |
a961ca30 | 3632 | else if (gfc_option.coarray != GFC_FCOARRAY_LIB) |
4ee9c684 | 3633 | { |
da2c4122 | 3634 | gfc_save_backend_locus (&loc); |
3635 | gfc_set_backend_locus (&sym->declared_at); | |
3636 | ||
25dd7350 | 3637 | if (sym_has_alloc_comp) |
3638 | { | |
3639 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3640 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3641 | } |
f0d4969f | 3642 | else if (sym->ts.type == BT_DERIVED |
3643 | && sym->value | |
3644 | && !sym->attr.data | |
3645 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3646 | { |
3647 | gfc_start_block (&tmpblock); | |
3648 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3649 | gfc_add_init_cleanup (block, |
c5faa799 | 3650 | gfc_finish_block (&tmpblock), |
3651 | NULL_TREE); | |
3652 | } | |
25dd7350 | 3653 | |
c5faa799 | 3654 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 3655 | sym, block); |
4671339c | 3656 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3657 | } |
3658 | break; | |
3659 | ||
3660 | case AS_ASSUMED_SIZE: | |
3661 | /* Must be a dummy parameter. */ | |
452695a8 | 3662 | gcc_assert (sym->attr.dummy || sym->as->cp_was_assumed); |
4ee9c684 | 3663 | |
3664 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 3665 | if (sym->attr.dummy) |
89ac8ba1 | 3666 | gfc_trans_g77_array (sym, block); |
c5faa799 | 3667 | break; |
4ee9c684 | 3668 | |
3669 | case AS_ASSUMED_SHAPE: | |
3670 | /* Must be a dummy parameter. */ | |
22d678e8 | 3671 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 3672 | |
89ac8ba1 | 3673 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3674 | break; |
3675 | ||
3676 | case AS_DEFERRED: | |
25dd7350 | 3677 | seen_trans_deferred_array = true; |
89ac8ba1 | 3678 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3679 | break; |
3680 | ||
3681 | default: | |
22d678e8 | 3682 | gcc_unreachable (); |
4ee9c684 | 3683 | } |
25dd7350 | 3684 | if (sym_has_alloc_comp && !seen_trans_deferred_array) |
89ac8ba1 | 3685 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3686 | } |
fd23cc08 | 3687 | else if ((!sym->attr.dummy || sym->ts.deferred) |
3688 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 3689 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 3690 | continue; |
617125a6 | 3691 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 3692 | && (sym->attr.allocatable |
3693 | || (sym->ts.type == BT_CLASS | |
3694 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 3695 | { |
908e9973 | 3696 | if (!sym->attr.save) |
3697 | { | |
d0d776fb | 3698 | tree descriptor = NULL_TREE; |
3699 | ||
908e9973 | 3700 | /* Nullify and automatic deallocation of allocatable |
3701 | scalars. */ | |
908e9973 | 3702 | e = gfc_lval_expr_from_sym (sym); |
3703 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 3704 | gfc_add_data_component (e); |
908e9973 | 3705 | |
3706 | gfc_init_se (&se, NULL); | |
fd23cc08 | 3707 | if (sym->ts.type != BT_CLASS |
3708 | || sym->ts.u.derived->attr.dimension | |
3709 | || sym->ts.u.derived->attr.codimension) | |
3710 | { | |
3711 | se.want_pointer = 1; | |
3712 | gfc_conv_expr (&se, e); | |
3713 | } | |
3714 | else if (sym->ts.type == BT_CLASS | |
3715 | && !CLASS_DATA (sym)->attr.dimension | |
3716 | && !CLASS_DATA (sym)->attr.codimension) | |
3717 | { | |
3718 | se.want_pointer = 1; | |
3719 | gfc_conv_expr (&se, e); | |
3720 | } | |
3721 | else | |
3722 | { | |
3723 | gfc_conv_expr (&se, e); | |
d0d776fb | 3724 | descriptor = se.expr; |
fd23cc08 | 3725 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
3726 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
3727 | } | |
908e9973 | 3728 | gfc_free_expr (e); |
3729 | ||
da2c4122 | 3730 | gfc_save_backend_locus (&loc); |
3731 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 3732 | gfc_start_block (&init); |
617125a6 | 3733 | |
3734 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3735 | { | |
3736 | /* Nullify when entering the scope. */ | |
3737 | gfc_add_modify (&init, se.expr, | |
3738 | fold_convert (TREE_TYPE (se.expr), | |
3739 | null_pointer_node)); | |
3740 | } | |
3741 | ||
3742 | if ((sym->attr.dummy ||sym->attr.result) | |
3743 | && sym->ts.type == BT_CHARACTER | |
3744 | && sym->ts.deferred) | |
3745 | { | |
3746 | /* Character length passed by reference. */ | |
3747 | tmp = sym->ts.u.cl->passed_length; | |
3748 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3749 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3750 | ||
3751 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3752 | /* Zero the string length when entering the scope. */ | |
3753 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
3754 | build_int_cst (gfc_charlen_type_node, 0)); | |
3755 | else | |
3756 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3757 | ||
da2c4122 | 3758 | gfc_restore_backend_locus (&loc); |
3759 | ||
617125a6 | 3760 | /* Pass the final character length back. */ |
3761 | if (sym->attr.intent != INTENT_IN) | |
3762 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3763 | gfc_charlen_type_node, tmp, | |
3764 | sym->ts.u.cl->backend_decl); | |
3765 | else | |
3766 | tmp = NULL_TREE; | |
3767 | } | |
da2c4122 | 3768 | else |
3769 | gfc_restore_backend_locus (&loc); | |
908e9973 | 3770 | |
3771 | /* Deallocate when leaving the scope. Nullifying is not | |
3772 | needed. */ | |
617125a6 | 3773 | if (!sym->attr.result && !sym->attr.dummy) |
d0d776fb | 3774 | { |
3775 | if (sym->ts.type == BT_CLASS | |
3776 | && CLASS_DATA (sym)->attr.codimension) | |
3777 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
3778 | NULL_TREE, NULL_TREE, | |
3779 | NULL_TREE, true, NULL, | |
3780 | true); | |
3781 | else | |
3782 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL, | |
3783 | true, NULL, | |
3784 | sym->ts); | |
3785 | } | |
afc44c79 | 3786 | if (sym->ts.type == BT_CLASS) |
3787 | { | |
3788 | /* Initialize _vptr to declared type. */ | |
3789 | gfc_symbol *vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
3790 | tree rhs; | |
da2c4122 | 3791 | |
3792 | gfc_save_backend_locus (&loc); | |
3793 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 3794 | e = gfc_lval_expr_from_sym (sym); |
3795 | gfc_add_vptr_component (e); | |
3796 | gfc_init_se (&se, NULL); | |
3797 | se.want_pointer = 1; | |
3798 | gfc_conv_expr (&se, e); | |
3799 | gfc_free_expr (e); | |
3800 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
3801 | gfc_get_symbol_decl (vtab)); | |
3802 | gfc_add_modify (&init, se.expr, rhs); | |
da2c4122 | 3803 | gfc_restore_backend_locus (&loc); |
afc44c79 | 3804 | } |
3805 | ||
89ac8ba1 | 3806 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 3807 | } |
0a96a7cc | 3808 | } |
617125a6 | 3809 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
3810 | { | |
3811 | tree tmp = NULL; | |
3812 | stmtblock_t init; | |
3813 | ||
3814 | /* If we get to here, all that should be left are pointers. */ | |
3815 | gcc_assert (sym->attr.pointer); | |
3816 | ||
3817 | if (sym->attr.dummy) | |
3818 | { | |
3819 | gfc_start_block (&init); | |
3820 | ||
3821 | /* Character length passed by reference. */ | |
3822 | tmp = sym->ts.u.cl->passed_length; | |
3823 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3824 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3825 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
3826 | /* Pass the final character length back. */ | |
3827 | if (sym->attr.intent != INTENT_IN) | |
3828 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3829 | gfc_charlen_type_node, tmp, | |
3830 | sym->ts.u.cl->backend_decl); | |
3831 | else | |
3832 | tmp = NULL_TREE; | |
3833 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3834 | } | |
3835 | } | |
3e715c81 | 3836 | else if (sym->ts.deferred) |
3837 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
fabc1fc9 | 3838 | else if (sym_has_alloc_comp) |
89ac8ba1 | 3839 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3840 | else if (sym->ts.type == BT_CHARACTER) |
3841 | { | |
4671339c | 3842 | gfc_save_backend_locus (&loc); |
4ee9c684 | 3843 | gfc_set_backend_locus (&sym->declared_at); |
3844 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3845 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 3846 | else |
89ac8ba1 | 3847 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 3848 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3849 | } |
c8f1568f | 3850 | else if (sym->attr.assign) |
3851 | { | |
4671339c | 3852 | gfc_save_backend_locus (&loc); |
c8f1568f | 3853 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 3854 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 3855 | gfc_restore_backend_locus (&loc); |
c8f1568f | 3856 | } |
f0d4969f | 3857 | else if (sym->ts.type == BT_DERIVED |
3858 | && sym->value | |
3859 | && !sym->attr.data | |
3860 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3861 | { |
3862 | gfc_start_block (&tmpblock); | |
3863 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3864 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 3865 | NULL_TREE); |
3866 | } | |
4ee9c684 | 3867 | else |
22d678e8 | 3868 | gcc_unreachable (); |
4ee9c684 | 3869 | } |
3870 | ||
c5faa799 | 3871 | gfc_init_block (&tmpblock); |
d4163395 | 3872 | |
3873 | for (f = proc_sym->formal; f; f = f->next) | |
1e853e89 | 3874 | { |
3875 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
3876 | { | |
eeebe20b | 3877 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
3878 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 3879 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 3880 | } |
1e853e89 | 3881 | } |
d4163395 | 3882 | |
3883 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
3884 | && current_fake_result_decl != NULL) | |
3885 | { | |
eeebe20b | 3886 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
3887 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 3888 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 3889 | } |
3890 | ||
89ac8ba1 | 3891 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 3892 | } |
3893 | ||
df4d540f | 3894 | static GTY ((param_is (struct module_htab_entry))) htab_t module_htab; |
3895 | ||
3896 | /* Hash and equality functions for module_htab. */ | |
3897 | ||
3898 | static hashval_t | |
3899 | module_htab_do_hash (const void *x) | |
3900 | { | |
3901 | return htab_hash_string (((const struct module_htab_entry *)x)->name); | |
3902 | } | |
3903 | ||
3904 | static int | |
3905 | module_htab_eq (const void *x1, const void *x2) | |
3906 | { | |
3907 | return strcmp ((((const struct module_htab_entry *)x1)->name), | |
3908 | (const char *)x2) == 0; | |
3909 | } | |
3910 | ||
3911 | /* Hash and equality functions for module_htab's decls. */ | |
3912 | ||
3913 | static hashval_t | |
3914 | module_htab_decls_hash (const void *x) | |
3915 | { | |
3916 | const_tree t = (const_tree) x; | |
3917 | const_tree n = DECL_NAME (t); | |
3918 | if (n == NULL_TREE) | |
3919 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 3920 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 3921 | } |
3922 | ||
3923 | static int | |
3924 | module_htab_decls_eq (const void *x1, const void *x2) | |
3925 | { | |
3926 | const_tree t1 = (const_tree) x1; | |
3927 | const_tree n1 = DECL_NAME (t1); | |
3928 | if (n1 == NULL_TREE) | |
3929 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
3930 | return strcmp (IDENTIFIER_POINTER (n1), (const char *) x2) == 0; | |
3931 | } | |
3932 | ||
3933 | struct module_htab_entry * | |
3934 | gfc_find_module (const char *name) | |
3935 | { | |
3936 | void **slot; | |
3937 | ||
3938 | if (! module_htab) | |
3939 | module_htab = htab_create_ggc (10, module_htab_do_hash, | |
3940 | module_htab_eq, NULL); | |
3941 | ||
3942 | slot = htab_find_slot_with_hash (module_htab, name, | |
3943 | htab_hash_string (name), INSERT); | |
3944 | if (*slot == NULL) | |
3945 | { | |
ba72912a | 3946 | struct module_htab_entry *entry = ggc_alloc_cleared_module_htab_entry (); |
df4d540f | 3947 | |
3948 | entry->name = gfc_get_string (name); | |
3949 | entry->decls = htab_create_ggc (10, module_htab_decls_hash, | |
3950 | module_htab_decls_eq, NULL); | |
3951 | *slot = (void *) entry; | |
3952 | } | |
3953 | return (struct module_htab_entry *) *slot; | |
3954 | } | |
3955 | ||
3956 | void | |
3957 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
3958 | { | |
3959 | void **slot; | |
3960 | const char *name; | |
3961 | ||
3962 | if (DECL_NAME (decl)) | |
3963 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
3964 | else | |
3965 | { | |
3966 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
3967 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
3968 | } | |
3969 | slot = htab_find_slot_with_hash (entry->decls, name, | |
3970 | htab_hash_string (name), INSERT); | |
3971 | if (*slot == NULL) | |
3972 | *slot = (void *) decl; | |
3973 | } | |
3974 | ||
3975 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 3976 | |
3977 | /* Output an initialized decl for a module variable. */ | |
3978 | ||
3979 | static void | |
3980 | gfc_create_module_variable (gfc_symbol * sym) | |
3981 | { | |
3982 | tree decl; | |
4ee9c684 | 3983 | |
d77f260f | 3984 | /* Module functions with alternate entries are dealt with later and |
3985 | would get caught by the next condition. */ | |
3986 | if (sym->attr.entry) | |
3987 | return; | |
3988 | ||
c5d33754 | 3989 | /* Make sure we convert the types of the derived types from iso_c_binding |
3990 | into (void *). */ | |
3991 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
3992 | && sym->ts.type == BT_DERIVED) | |
3993 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
3994 | ||
df4d540f | 3995 | if (sym->attr.flavor == FL_DERIVED |
3996 | && sym->backend_decl | |
3997 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
3998 | { | |
3999 | decl = sym->backend_decl; | |
4000 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4001 | |
4002 | /* -fwhole-file mixes up the contexts so these asserts are unnecessary. */ | |
4003 | if (!(gfc_option.flag_whole_file && sym->attr.use_assoc)) | |
4004 | { | |
4005 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4006 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4007 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4008 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4009 | == sym->ns->proc_name->backend_decl); | |
4010 | } | |
df4d540f | 4011 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4012 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4013 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4014 | } | |
4015 | ||
cf269acc | 4016 | /* Only output variables, procedure pointers and array valued, |
4017 | or derived type, parameters. */ | |
4ee9c684 | 4018 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4019 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4020 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4021 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4022 | return; |
4023 | ||
df4d540f | 4024 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4025 | { | |
4026 | decl = sym->backend_decl; | |
16a40513 | 4027 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4028 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4029 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4030 | gfc_module_add_decl (cur_module, decl); | |
4031 | } | |
4032 | ||
d43a7f7f | 4033 | /* Don't generate variables from other modules. Variables from |
4034 | COMMONs will already have been generated. */ | |
4035 | if (sym->attr.use_assoc || sym->attr.in_common) | |
4ee9c684 | 4036 | return; |
4037 | ||
2b685f8e | 4038 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4039 | if (sym->backend_decl |
df4d540f | 4040 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4041 | return; | |
2b685f8e | 4042 | |
23d075f4 | 4043 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
4ee9c684 | 4044 | internal_error ("backend decl for module variable %s already exists", |
4045 | sym->name); | |
4046 | ||
4047 | /* We always want module variables to be created. */ | |
4048 | sym->attr.referenced = 1; | |
4049 | /* Create the decl. */ | |
4050 | decl = gfc_get_symbol_decl (sym); | |
4051 | ||
4ee9c684 | 4052 | /* Create the variable. */ |
4053 | pushdecl (decl); | |
df4d540f | 4054 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4055 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4056 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4057 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4058 | |
4059 | /* Also add length of strings. */ | |
4060 | if (sym->ts.type == BT_CHARACTER) | |
4061 | { | |
4062 | tree length; | |
4063 | ||
eeebe20b | 4064 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4065 | gcc_assert (length || sym->attr.proc_pointer); |
4066 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4067 | { |
4068 | pushdecl (length); | |
b2c4af5e | 4069 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4070 | } |
4071 | } | |
a961ca30 | 4072 | |
4073 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4074 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4075 | has_coarray_vars = true; | |
4ee9c684 | 4076 | } |
4077 | ||
51d9479b | 4078 | /* Emit debug information for USE statements. */ |
df4d540f | 4079 | |
4080 | static void | |
4081 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4082 | { | |
4083 | gfc_use_list *use_stmt; | |
4084 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4085 | { | |
4086 | struct module_htab_entry *entry | |
4087 | = gfc_find_module (use_stmt->module_name); | |
4088 | gfc_use_rename *rent; | |
4089 | ||
4090 | if (entry->namespace_decl == NULL) | |
4091 | { | |
4092 | entry->namespace_decl | |
e60a6f7b | 4093 | = build_decl (input_location, |
4094 | NAMESPACE_DECL, | |
df4d540f | 4095 | get_identifier (use_stmt->module_name), |
4096 | void_type_node); | |
4097 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4098 | } | |
51d9479b | 4099 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4100 | if (!use_stmt->only_flag) |
4101 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4102 | NULL_TREE, | |
4103 | ns->proc_name->backend_decl, | |
4104 | false); | |
4105 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4106 | { | |
4107 | tree decl, local_name; | |
4108 | void **slot; | |
4109 | ||
4110 | if (rent->op != INTRINSIC_NONE) | |
4111 | continue; | |
4112 | ||
4113 | slot = htab_find_slot_with_hash (entry->decls, rent->use_name, | |
4114 | htab_hash_string (rent->use_name), | |
4115 | INSERT); | |
4116 | if (*slot == NULL) | |
4117 | { | |
4118 | gfc_symtree *st; | |
4119 | ||
4120 | st = gfc_find_symtree (ns->sym_root, | |
4121 | rent->local_name[0] | |
4122 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4123 | |
4124 | /* The following can happen if a derived type is renamed. */ | |
4125 | if (!st) | |
4126 | { | |
4127 | char *name; | |
4128 | name = xstrdup (rent->local_name[0] | |
4129 | ? rent->local_name : rent->use_name); | |
4130 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4131 | st = gfc_find_symtree (ns->sym_root, name); | |
4132 | free (name); | |
4133 | gcc_assert (st); | |
4134 | } | |
857c96ba | 4135 | |
4136 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4137 | local symbol (see PR41062). */ | |
4138 | if (!st->n.sym->attr.use_assoc) | |
4139 | continue; | |
4140 | ||
51d9479b | 4141 | if (st->n.sym->backend_decl |
4142 | && DECL_P (st->n.sym->backend_decl) | |
4143 | && st->n.sym->module | |
4144 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4145 | { |
51d9479b | 4146 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4147 | || (TREE_CODE (st->n.sym->backend_decl) | |
4148 | != VAR_DECL)); | |
df4d540f | 4149 | decl = copy_node (st->n.sym->backend_decl); |
4150 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4151 | DECL_EXTERNAL (decl) = 1; | |
4152 | DECL_IGNORED_P (decl) = 0; | |
4153 | DECL_INITIAL (decl) = NULL_TREE; | |
4154 | } | |
4155 | else | |
4156 | { | |
4157 | *slot = error_mark_node; | |
4158 | htab_clear_slot (entry->decls, slot); | |
4159 | continue; | |
4160 | } | |
4161 | *slot = decl; | |
4162 | } | |
4163 | decl = (tree) *slot; | |
4164 | if (rent->local_name[0]) | |
4165 | local_name = get_identifier (rent->local_name); | |
4166 | else | |
4167 | local_name = NULL_TREE; | |
51d9479b | 4168 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4169 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4170 | ns->proc_name->backend_decl, | |
4171 | !use_stmt->only_flag); | |
4172 | } | |
4173 | } | |
4ee9c684 | 4174 | } |
4175 | ||
51d9479b | 4176 | |
2eb674c9 | 4177 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4178 | will handle. */ | |
4179 | ||
4180 | static bool | |
4181 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4182 | bool pointer) | |
4183 | { | |
4184 | gfc_constructor *c; | |
4185 | gfc_component *cm; | |
4186 | ||
4187 | if (pointer) | |
4188 | return true; | |
4189 | else if (array) | |
4190 | { | |
4191 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4192 | return true; | |
4193 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4194 | return check_constant_initializer (expr, ts, false, false); | |
4195 | else if (expr->expr_type != EXPR_ARRAY) | |
4196 | return false; | |
126387b5 | 4197 | for (c = gfc_constructor_first (expr->value.constructor); |
4198 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4199 | { |
4200 | if (c->iterator) | |
4201 | return false; | |
4202 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4203 | { | |
4204 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4205 | return false; | |
4206 | } | |
4207 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4208 | return false; | |
4209 | } | |
4210 | return true; | |
4211 | } | |
4212 | else switch (ts->type) | |
4213 | { | |
4214 | case BT_DERIVED: | |
4215 | if (expr->expr_type != EXPR_STRUCTURE) | |
4216 | return false; | |
eeebe20b | 4217 | cm = expr->ts.u.derived->components; |
126387b5 | 4218 | for (c = gfc_constructor_first (expr->value.constructor); |
4219 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4220 | { |
4221 | if (!c->expr || cm->attr.allocatable) | |
4222 | continue; | |
4223 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4224 | cm->attr.dimension, | |
4225 | cm->attr.pointer)) | |
4226 | return false; | |
4227 | } | |
4228 | return true; | |
4229 | default: | |
4230 | return expr->expr_type == EXPR_CONSTANT; | |
4231 | } | |
4232 | } | |
4233 | ||
4234 | /* Emit debug info for parameters and unreferenced variables with | |
4235 | initializers. */ | |
4236 | ||
4237 | static void | |
4238 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4239 | { | |
4240 | tree decl; | |
4241 | ||
4242 | if (sym->attr.flavor != FL_PARAMETER | |
4243 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4244 | return; | |
4245 | ||
4246 | if (sym->backend_decl != NULL | |
4247 | || sym->value == NULL | |
4248 | || sym->attr.use_assoc | |
4249 | || sym->attr.dummy | |
4250 | || sym->attr.result | |
4251 | || sym->attr.function | |
4252 | || sym->attr.intrinsic | |
4253 | || sym->attr.pointer | |
4254 | || sym->attr.allocatable | |
4255 | || sym->attr.cray_pointee | |
4256 | || sym->attr.threadprivate | |
4257 | || sym->attr.is_bind_c | |
4258 | || sym->attr.subref_array_pointer | |
4259 | || sym->attr.assign) | |
4260 | return; | |
4261 | ||
4262 | if (sym->ts.type == BT_CHARACTER) | |
4263 | { | |
eeebe20b | 4264 | gfc_conv_const_charlen (sym->ts.u.cl); |
4265 | if (sym->ts.u.cl->backend_decl == NULL | |
4266 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4267 | return; |
4268 | } | |
eeebe20b | 4269 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4270 | return; |
4271 | ||
4272 | if (sym->as) | |
4273 | { | |
4274 | int n; | |
4275 | ||
4276 | if (sym->as->type != AS_EXPLICIT) | |
4277 | return; | |
4278 | for (n = 0; n < sym->as->rank; n++) | |
4279 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4280 | || sym->as->upper[n] == NULL | |
4281 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4282 | return; | |
4283 | } | |
4284 | ||
4285 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4286 | sym->attr.dimension, false)) | |
4287 | return; | |
4288 | ||
a961ca30 | 4289 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
4290 | return; | |
4291 | ||
2eb674c9 | 4292 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4293 | decl = build_decl (input_location, |
4294 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4295 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4296 | if (sym->attr.flavor == FL_PARAMETER) | |
4297 | TREE_READONLY (decl) = 1; | |
4298 | gfc_set_decl_location (decl, &sym->declared_at); | |
4299 | if (sym->attr.dimension) | |
4300 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4301 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4302 | TREE_STATIC (decl) = 1; | |
4303 | TREE_USED (decl) = 1; | |
4304 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4305 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4306 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4307 | TREE_TYPE (decl), | |
4308 | sym->attr.dimension, | |
4309 | false, false); | |
2eb674c9 | 4310 | debug_hooks->global_decl (decl); |
4311 | } | |
4312 | ||
a961ca30 | 4313 | |
4314 | static void | |
4315 | generate_coarray_sym_init (gfc_symbol *sym) | |
4316 | { | |
4317 | tree tmp, size, decl, token; | |
4318 | ||
4319 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
4320 | || sym->attr.use_assoc || !sym->attr.referenced) | |
4321 | return; | |
4322 | ||
4323 | decl = sym->backend_decl; | |
4324 | TREE_USED(decl) = 1; | |
4325 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4326 | ||
4327 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 | |
4328 | to make sure the variable is not optimized away. */ | |
4329 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4330 | ||
4331 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
4332 | ||
ee4e7a5e | 4333 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
4334 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, | |
4335 | fold_convert (size_type_node, size), | |
4336 | build_int_cst (size_type_node, 1)); | |
4337 | ||
a961ca30 | 4338 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4339 | { | |
4340 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4341 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4342 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4343 | } |
4344 | ||
4345 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4346 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4347 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
4348 | ||
4349 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, | |
7b186db6 | 4350 | build_int_cst (integer_type_node, |
4f5fe475 | 4351 | GFC_CAF_COARRAY_STATIC), /* type. */ |
a961ca30 | 4352 | token, null_pointer_node, /* token, stat. */ |
4353 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4354 | build_int_cst (integer_type_node, 0)); | |
4355 | ||
4356 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); | |
4357 | ||
4358 | ||
4359 | /* Handle "static" initializer. */ | |
4360 | if (sym->value) | |
4361 | { | |
4362 | sym->attr.pointer = 1; | |
4363 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4364 | true, false); | |
4365 | sym->attr.pointer = 0; | |
4366 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4367 | } | |
4368 | } | |
4369 | ||
4370 | ||
4371 | /* Generate constructor function to initialize static, nonallocatable | |
4372 | coarrays. */ | |
4373 | ||
4374 | static void | |
4375 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4376 | { | |
4377 | tree fndecl, tmp, decl, save_fn_decl; | |
4378 | ||
4379 | save_fn_decl = current_function_decl; | |
4380 | push_function_context (); | |
4381 | ||
4382 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4383 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4384 | create_tmp_var_name ("_caf_init"), tmp); | |
4385 | ||
4386 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4387 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4388 | ||
4389 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4390 | DECL_ARTIFICIAL (decl) = 1; | |
4391 | DECL_IGNORED_P (decl) = 1; | |
4392 | DECL_CONTEXT (decl) = fndecl; | |
4393 | DECL_RESULT (fndecl) = decl; | |
4394 | ||
4395 | pushdecl (fndecl); | |
4396 | current_function_decl = fndecl; | |
4397 | announce_function (fndecl); | |
4398 | ||
4399 | rest_of_decl_compilation (fndecl, 0, 0); | |
4400 | make_decl_rtl (fndecl); | |
4401 | init_function_start (fndecl); | |
4402 | ||
4403 | pushlevel (0); | |
4404 | gfc_init_block (&caf_init_block); | |
4405 | ||
4406 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
4407 | ||
4408 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
4409 | decl = getdecls (); | |
4410 | ||
4411 | poplevel (1, 0, 1); | |
4412 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
4413 | ||
4414 | DECL_SAVED_TREE (fndecl) | |
4415 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
4416 | DECL_INITIAL (fndecl)); | |
4417 | dump_function (TDI_original, fndecl); | |
4418 | ||
4419 | cfun->function_end_locus = input_location; | |
4420 | set_cfun (NULL); | |
4421 | ||
4422 | if (decl_function_context (fndecl)) | |
4423 | (void) cgraph_create_node (fndecl); | |
4424 | else | |
4425 | cgraph_finalize_function (fndecl, true); | |
4426 | ||
4427 | pop_function_context (); | |
4428 | current_function_decl = save_fn_decl; | |
4429 | } | |
4430 | ||
4431 | ||
51d9479b | 4432 | /* Generate all the required code for module variables. */ |
4433 | ||
4434 | void | |
4435 | gfc_generate_module_vars (gfc_namespace * ns) | |
4436 | { | |
4437 | module_namespace = ns; | |
4438 | cur_module = gfc_find_module (ns->proc_name->name); | |
4439 | ||
4440 | /* Check if the frontend left the namespace in a reasonable state. */ | |
4441 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
4442 | ||
4443 | /* Generate COMMON blocks. */ | |
4444 | gfc_trans_common (ns); | |
4445 | ||
a961ca30 | 4446 | has_coarray_vars = false; |
4447 | ||
51d9479b | 4448 | /* Create decls for all the module variables. */ |
4449 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
4450 | ||
a961ca30 | 4451 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
4452 | generate_coarray_init (ns); | |
4453 | ||
51d9479b | 4454 | cur_module = NULL; |
4455 | ||
4456 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 4457 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 4458 | } |
4459 | ||
4460 | ||
4ee9c684 | 4461 | static void |
4462 | gfc_generate_contained_functions (gfc_namespace * parent) | |
4463 | { | |
4464 | gfc_namespace *ns; | |
4465 | ||
4466 | /* We create all the prototypes before generating any code. */ | |
4467 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4468 | { | |
4469 | /* Skip namespaces from used modules. */ | |
4470 | if (ns->parent != parent) | |
4471 | continue; | |
4472 | ||
d896f9b3 | 4473 | gfc_create_function_decl (ns, false); |
4ee9c684 | 4474 | } |
4475 | ||
4476 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4477 | { | |
4478 | /* Skip namespaces from used modules. */ | |
4479 | if (ns->parent != parent) | |
4480 | continue; | |
4481 | ||
4482 | gfc_generate_function_code (ns); | |
4483 | } | |
4484 | } | |
4485 | ||
4486 | ||
d95efb59 | 4487 | /* Drill down through expressions for the array specification bounds and |
4488 | character length calling generate_local_decl for all those variables | |
4489 | that have not already been declared. */ | |
4490 | ||
4491 | static void | |
4492 | generate_local_decl (gfc_symbol *); | |
4493 | ||
1acb400a | 4494 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 4495 | |
1acb400a | 4496 | static bool |
4497 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
4498 | int *f ATTRIBUTE_UNUSED) | |
4499 | { | |
4500 | if (e->expr_type != EXPR_VARIABLE | |
4501 | || sym == e->symtree->n.sym | |
d95efb59 | 4502 | || e->symtree->n.sym->mark |
4503 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 4504 | return false; |
d95efb59 | 4505 | |
1acb400a | 4506 | generate_local_decl (e->symtree->n.sym); |
4507 | return false; | |
4508 | } | |
d95efb59 | 4509 | |
1acb400a | 4510 | static void |
4511 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
4512 | { | |
4513 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 4514 | } |
4515 | ||
4516 | ||
f6d0e37a | 4517 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 4518 | |
4519 | static void | |
4520 | generate_dependency_declarations (gfc_symbol *sym) | |
4521 | { | |
4522 | int i; | |
4523 | ||
4524 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 4525 | && sym->ts.u.cl |
4526 | && sym->ts.u.cl->length | |
4527 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
4528 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 4529 | |
4530 | if (sym->as && sym->as->rank) | |
4531 | { | |
4532 | for (i = 0; i < sym->as->rank; i++) | |
4533 | { | |
4534 | generate_expr_decls (sym, sym->as->lower[i]); | |
4535 | generate_expr_decls (sym, sym->as->upper[i]); | |
4536 | } | |
4537 | } | |
4538 | } | |
4539 | ||
4540 | ||
4ee9c684 | 4541 | /* Generate decls for all local variables. We do this to ensure correct |
4542 | handling of expressions which only appear in the specification of | |
4543 | other functions. */ | |
4544 | ||
4545 | static void | |
4546 | generate_local_decl (gfc_symbol * sym) | |
4547 | { | |
4548 | if (sym->attr.flavor == FL_VARIABLE) | |
4549 | { | |
a961ca30 | 4550 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
4551 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4552 | has_coarray_vars = true; | |
4553 | ||
d95efb59 | 4554 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 4555 | generate_dependency_declarations (sym); |
d95efb59 | 4556 | |
4ee9c684 | 4557 | if (sym->attr.referenced) |
8714fc76 | 4558 | gfc_get_symbol_decl (sym); |
4acad347 | 4559 | |
4560 | /* Warnings for unused dummy arguments. */ | |
4561 | else if (sym->attr.dummy) | |
7c0ca46e | 4562 | { |
4acad347 | 4563 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
4564 | if (gfc_option.warn_unused_dummy_argument | |
4565 | && sym->attr.intent == INTENT_OUT) | |
4566 | { | |
4567 | if (sym->ts.type != BT_DERIVED) | |
4568 | gfc_warning ("Dummy argument '%s' at %L was declared " | |
4569 | "INTENT(OUT) but was not set", sym->name, | |
4570 | &sym->declared_at); | |
4571 | else if (!gfc_has_default_initializer (sym->ts.u.derived)) | |
4572 | gfc_warning ("Derived-type dummy argument '%s' at %L was " | |
4573 | "declared INTENT(OUT) but was not set and " | |
4574 | "does not have a default initializer", | |
4575 | sym->name, &sym->declared_at); | |
90a4a5a6 | 4576 | if (sym->backend_decl != NULL_TREE) |
4577 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 4578 | } |
4579 | else if (gfc_option.warn_unused_dummy_argument) | |
90a4a5a6 | 4580 | { |
4581 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
4acad347 | 4582 | &sym->declared_at); |
90a4a5a6 | 4583 | if (sym->backend_decl != NULL_TREE) |
4584 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4585 | } | |
7c0ca46e | 4586 | } |
4acad347 | 4587 | |
f888a3fb | 4588 | /* Warn for unused variables, but not if they're inside a common |
72c9bfbc | 4589 | block, a namelist, or are use-associated. */ |
36609028 | 4590 | else if (warn_unused_variable |
72c9bfbc | 4591 | && !(sym->attr.in_common || sym->attr.use_assoc || sym->mark |
4592 | || sym->attr.in_namelist)) | |
90a4a5a6 | 4593 | { |
4594 | gfc_warning ("Unused variable '%s' declared at %L", sym->name, | |
4595 | &sym->declared_at); | |
4596 | if (sym->backend_decl != NULL_TREE) | |
4597 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4598 | } | |
f326eb81 | 4599 | else if (warn_unused_variable && sym->attr.use_only) |
90a4a5a6 | 4600 | { |
4601 | gfc_warning ("Unused module variable '%s' which has been explicitly " | |
4602 | "imported at %L", sym->name, &sym->declared_at); | |
4603 | if (sym->backend_decl != NULL_TREE) | |
4604 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4605 | } | |
8714fc76 | 4606 | |
d4163395 | 4607 | /* For variable length CHARACTER parameters, the PARM_DECL already |
4608 | references the length variable, so force gfc_get_symbol_decl | |
4609 | even when not referenced. If optimize > 0, it will be optimized | |
4610 | away anyway. But do this only after emitting -Wunused-parameter | |
4611 | warning if requested. */ | |
8714fc76 | 4612 | if (sym->attr.dummy && !sym->attr.referenced |
4613 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 4614 | && sym->ts.u.cl->backend_decl != NULL |
4615 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 4616 | { |
4617 | sym->attr.referenced = 1; | |
4618 | gfc_get_symbol_decl (sym); | |
4619 | } | |
76776e6d | 4620 | |
d0163401 | 4621 | /* INTENT(out) dummy arguments and result variables with allocatable |
4622 | components are reset by default and need to be set referenced to | |
4623 | generate the code for nullification and automatic lengths. */ | |
4624 | if (!sym->attr.referenced | |
8714fc76 | 4625 | && sym->ts.type == BT_DERIVED |
eeebe20b | 4626 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 4627 | && !sym->attr.pointer |
d0163401 | 4628 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
4629 | || | |
4630 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 4631 | { |
4632 | sym->attr.referenced = 1; | |
4633 | gfc_get_symbol_decl (sym); | |
4634 | } | |
4635 | ||
e72f979a | 4636 | /* Check for dependencies in the array specification and string |
4637 | length, adding the necessary declarations to the function. We | |
4638 | mark the symbol now, as well as in traverse_ns, to prevent | |
4639 | getting stuck in a circular dependency. */ | |
4640 | sym->mark = 1; | |
4ee9c684 | 4641 | } |
5dd246c1 | 4642 | else if (sym->attr.flavor == FL_PARAMETER) |
4643 | { | |
6ecfe89d | 4644 | if (warn_unused_parameter |
f326eb81 | 4645 | && !sym->attr.referenced) |
4646 | { | |
4647 | if (!sym->attr.use_assoc) | |
4648 | gfc_warning ("Unused parameter '%s' declared at %L", sym->name, | |
4649 | &sym->declared_at); | |
4650 | else if (sym->attr.use_only) | |
4651 | gfc_warning ("Unused parameter '%s' which has been explicitly " | |
4652 | "imported at %L", sym->name, &sym->declared_at); | |
4653 | } | |
5dd246c1 | 4654 | } |
fa7b6574 | 4655 | else if (sym->attr.flavor == FL_PROCEDURE) |
4656 | { | |
4657 | /* TODO: move to the appropriate place in resolve.c. */ | |
4658 | if (warn_return_type | |
4659 | && sym->attr.function | |
4660 | && sym->result | |
4661 | && sym != sym->result | |
4662 | && !sym->result->attr.referenced | |
4663 | && !sym->attr.use_assoc | |
4664 | && sym->attr.if_source != IFSRC_IFBODY) | |
4665 | { | |
4666 | gfc_warning ("Return value '%s' of function '%s' declared at " | |
4667 | "%L not set", sym->result->name, sym->name, | |
4668 | &sym->result->declared_at); | |
4669 | ||
4670 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 4671 | sym->result->mark = 1; |
fa7b6574 | 4672 | } |
4673 | } | |
c5d33754 | 4674 | |
19ba2ad8 | 4675 | if (sym->attr.dummy == 1) |
4676 | { | |
4677 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
4678 | procedures if they are passed by value. The tree type for them will | |
4679 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
4680 | what C would do with characters passed by-value. The value attribute | |
4681 | implies the dummy is a scalar. */ | |
4682 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
4683 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
4684 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 4685 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
19ba2ad8 | 4686 | } |
4687 | ||
c5d33754 | 4688 | /* Make sure we convert the types of the derived types from iso_c_binding |
4689 | into (void *). */ | |
4690 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4691 | && sym->ts.type == BT_DERIVED) | |
4692 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 4693 | } |
4694 | ||
4695 | static void | |
4696 | generate_local_vars (gfc_namespace * ns) | |
4697 | { | |
4698 | gfc_traverse_ns (ns, generate_local_decl); | |
4699 | } | |
4700 | ||
4701 | ||
1b716045 | 4702 | /* Generate a switch statement to jump to the correct entry point. Also |
4703 | creates the label decls for the entry points. */ | |
4ee9c684 | 4704 | |
1b716045 | 4705 | static tree |
4706 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 4707 | { |
1b716045 | 4708 | stmtblock_t block; |
4709 | tree label; | |
4710 | tree tmp; | |
4711 | tree val; | |
4ee9c684 | 4712 | |
1b716045 | 4713 | gfc_init_block (&block); |
4714 | for (; el; el = el->next) | |
4715 | { | |
4716 | /* Add the case label. */ | |
b797d6d3 | 4717 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 4718 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 4719 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 4720 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 4721 | |
1b716045 | 4722 | /* And jump to the actual entry point. */ |
4723 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 4724 | tmp = build1_v (GOTO_EXPR, label); |
4725 | gfc_add_expr_to_block (&block, tmp); | |
4726 | ||
4727 | /* Save the label decl. */ | |
4728 | el->label = label; | |
4729 | } | |
4730 | tmp = gfc_finish_block (&block); | |
4731 | /* The first argument selects the entry point. */ | |
4732 | val = DECL_ARGUMENTS (current_function_decl); | |
ed52ef8b | 4733 | tmp = build3_v (SWITCH_EXPR, val, tmp, NULL_TREE); |
1b716045 | 4734 | return tmp; |
4ee9c684 | 4735 | } |
4736 | ||
6374121b | 4737 | |
a4abf8a0 | 4738 | /* Add code to string lengths of actual arguments passed to a function against |
4739 | the expected lengths of the dummy arguments. */ | |
4740 | ||
4741 | static void | |
4742 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
4743 | { | |
4744 | gfc_formal_arglist *formal; | |
4745 | ||
4746 | for (formal = sym->formal; formal; formal = formal->next) | |
517c89e5 | 4747 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 4748 | && !formal->sym->ts.deferred) |
a4abf8a0 | 4749 | { |
4750 | enum tree_code comparison; | |
4751 | tree cond; | |
4752 | tree argname; | |
4753 | gfc_symbol *fsym; | |
4754 | gfc_charlen *cl; | |
4755 | const char *message; | |
4756 | ||
4757 | fsym = formal->sym; | |
eeebe20b | 4758 | cl = fsym->ts.u.cl; |
a4abf8a0 | 4759 | |
4760 | gcc_assert (cl); | |
4761 | gcc_assert (cl->passed_length != NULL_TREE); | |
4762 | gcc_assert (cl->backend_decl != NULL_TREE); | |
4763 | ||
4764 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
4765 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 4766 | that the actual string length is *at least* the expected one. |
4767 | Sequence association allows for a mismatch of the string length | |
4768 | if the actual argument is (part of) an array, but only if the | |
4769 | dummy argument is an array. (See "Sequence association" in | |
4770 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 4771 | if (fsym->attr.pointer || fsym->attr.allocatable |
4772 | || (fsym->as && fsym->as->type == AS_ASSUMED_SHAPE)) | |
a4abf8a0 | 4773 | { |
4774 | comparison = NE_EXPR; | |
4775 | message = _("Actual string length does not match the declared one" | |
4776 | " for dummy argument '%s' (%ld/%ld)"); | |
4777 | } | |
be4be771 | 4778 | else if (fsym->as && fsym->as->rank != 0) |
4779 | continue; | |
a4abf8a0 | 4780 | else |
4781 | { | |
4782 | comparison = LT_EXPR; | |
4783 | message = _("Actual string length is shorter than the declared one" | |
4784 | " for dummy argument '%s' (%ld/%ld)"); | |
4785 | } | |
4786 | ||
4787 | /* Build the condition. For optional arguments, an actual length | |
4788 | of 0 is also acceptable if the associated string is NULL, which | |
4789 | means the argument was not passed. */ | |
fd779e1d | 4790 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
4791 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 4792 | if (fsym->attr.optional) |
4793 | { | |
4794 | tree not_absent; | |
4795 | tree not_0length; | |
4796 | tree absent_failed; | |
4797 | ||
fd779e1d | 4798 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
4799 | boolean_type_node, | |
4800 | cl->passed_length, | |
385f3f36 | 4801 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 4802 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
4803 | fsym->attr.referenced = 1; | |
4804 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 4805 | |
fd779e1d | 4806 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
4807 | boolean_type_node, not_0length, | |
4808 | not_absent); | |
a4abf8a0 | 4809 | |
fd779e1d | 4810 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
4811 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 4812 | } |
4813 | ||
4814 | /* Build the runtime check. */ | |
4815 | argname = gfc_build_cstring_const (fsym->name); | |
4816 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
4817 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
4818 | message, argname, | |
4819 | fold_convert (long_integer_type_node, | |
4820 | cl->passed_length), | |
4821 | fold_convert (long_integer_type_node, | |
4822 | cl->backend_decl)); | |
4823 | } | |
4824 | } | |
4825 | ||
4826 | ||
642970a3 | 4827 | /* Generate the _gfortran_caf_this_image and _gfortran_caf_num_images |
4828 | global variables for -fcoarray=lib. They are placed into the translation | |
4829 | unit of the main program. Make sure that in one TU (the one of the main | |
4830 | program), the first call to gfc_init_coarray_decl is done with true. | |
4831 | Otherwise, expect link errors. */ | |
4832 | ||
70b5944a | 4833 | void |
642970a3 | 4834 | gfc_init_coarray_decl (bool main_tu) |
70b5944a | 4835 | { |
642970a3 | 4836 | tree save_fn_decl; |
70b5944a | 4837 | |
4838 | if (gfc_option.coarray != GFC_FCOARRAY_LIB) | |
4839 | return; | |
4840 | ||
4841 | if (gfort_gvar_caf_this_image || gfort_gvar_caf_num_images) | |
4842 | return; | |
4843 | ||
4844 | save_fn_decl = current_function_decl; | |
4845 | current_function_decl = NULL_TREE; | |
4846 | push_cfun (cfun); | |
4847 | ||
642970a3 | 4848 | gfort_gvar_caf_this_image |
4849 | = build_decl (input_location, VAR_DECL, | |
4850 | get_identifier (PREFIX("caf_this_image")), | |
4851 | integer_type_node); | |
70b5944a | 4852 | DECL_ARTIFICIAL (gfort_gvar_caf_this_image) = 1; |
4853 | TREE_USED (gfort_gvar_caf_this_image) = 1; | |
4854 | TREE_PUBLIC (gfort_gvar_caf_this_image) = 1; | |
642970a3 | 4855 | TREE_READONLY (gfort_gvar_caf_this_image) = 0; |
4856 | ||
4857 | if (main_tu) | |
4858 | TREE_STATIC (gfort_gvar_caf_this_image) = 1; | |
4859 | else | |
4860 | DECL_EXTERNAL (gfort_gvar_caf_this_image) = 1; | |
4861 | ||
4862 | pushdecl_top_level (gfort_gvar_caf_this_image); | |
70b5944a | 4863 | |
642970a3 | 4864 | gfort_gvar_caf_num_images |
4865 | = build_decl (input_location, VAR_DECL, | |
4866 | get_identifier (PREFIX("caf_num_images")), | |
4867 | integer_type_node); | |
70b5944a | 4868 | DECL_ARTIFICIAL (gfort_gvar_caf_num_images) = 1; |
4869 | TREE_USED (gfort_gvar_caf_num_images) = 1; | |
4870 | TREE_PUBLIC (gfort_gvar_caf_num_images) = 1; | |
642970a3 | 4871 | TREE_READONLY (gfort_gvar_caf_num_images) = 0; |
4872 | ||
4873 | if (main_tu) | |
4874 | TREE_STATIC (gfort_gvar_caf_num_images) = 1; | |
4875 | else | |
4876 | DECL_EXTERNAL (gfort_gvar_caf_num_images) = 1; | |
4877 | ||
4878 | pushdecl_top_level (gfort_gvar_caf_num_images); | |
70b5944a | 4879 | |
4880 | pop_cfun (); | |
4881 | current_function_decl = save_fn_decl; | |
4882 | } | |
4883 | ||
4884 | ||
7257a5d2 | 4885 | static void |
4886 | create_main_function (tree fndecl) | |
4887 | { | |
43702da6 | 4888 | tree old_context; |
7257a5d2 | 4889 | tree ftn_main; |
4890 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
4891 | stmtblock_t body; | |
4892 | ||
43702da6 | 4893 | old_context = current_function_decl; |
4894 | ||
4895 | if (old_context) | |
4896 | { | |
4897 | push_function_context (); | |
4898 | saved_parent_function_decls = saved_function_decls; | |
4899 | saved_function_decls = NULL_TREE; | |
4900 | } | |
4901 | ||
7257a5d2 | 4902 | /* main() function must be declared with global scope. */ |
4903 | gcc_assert (current_function_decl == NULL_TREE); | |
4904 | ||
4905 | /* Declare the function. */ | |
4906 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
4907 | build_pointer_type (pchar_type_node), | |
4908 | NULL_TREE); | |
0509d0ee | 4909 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 4910 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
4911 | main_identifier_node, tmp); | |
7257a5d2 | 4912 | DECL_EXTERNAL (ftn_main) = 0; |
4913 | TREE_PUBLIC (ftn_main) = 1; | |
4914 | TREE_STATIC (ftn_main) = 1; | |
4915 | DECL_ATTRIBUTES (ftn_main) | |
4916 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
4917 | ||
4918 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 4919 | result_decl = build_decl (input_location, |
4920 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 4921 | DECL_ARTIFICIAL (result_decl) = 1; |
4922 | DECL_IGNORED_P (result_decl) = 1; | |
4923 | DECL_CONTEXT (result_decl) = ftn_main; | |
4924 | DECL_RESULT (ftn_main) = result_decl; | |
4925 | ||
4926 | pushdecl (ftn_main); | |
4927 | ||
4928 | /* Get the arguments. */ | |
4929 | ||
4930 | arglist = NULL_TREE; | |
4931 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
4932 | ||
4933 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 4934 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 4935 | DECL_CONTEXT (argc) = ftn_main; |
4936 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
4937 | TREE_READONLY (argc) = 1; | |
4938 | gfc_finish_decl (argc); | |
4939 | arglist = chainon (arglist, argc); | |
4940 | ||
4941 | typelist = TREE_CHAIN (typelist); | |
4942 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 4943 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 4944 | DECL_CONTEXT (argv) = ftn_main; |
4945 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
4946 | TREE_READONLY (argv) = 1; | |
4947 | DECL_BY_REFERENCE (argv) = 1; | |
4948 | gfc_finish_decl (argv); | |
4949 | arglist = chainon (arglist, argv); | |
4950 | ||
4951 | DECL_ARGUMENTS (ftn_main) = arglist; | |
4952 | current_function_decl = ftn_main; | |
4953 | announce_function (ftn_main); | |
4954 | ||
4955 | rest_of_decl_compilation (ftn_main, 1, 0); | |
4956 | make_decl_rtl (ftn_main); | |
4957 | init_function_start (ftn_main); | |
4958 | pushlevel (0); | |
4959 | ||
4960 | gfc_init_block (&body); | |
4961 | ||
4962 | /* Call some libgfortran initialization routines, call then MAIN__(). */ | |
4963 | ||
70b5944a | 4964 | /* Call _gfortran_caf_init (*argc, ***argv, *this_image, *num_images). */ |
4965 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
4966 | { | |
4967 | tree pint_type, pppchar_type; | |
4968 | pint_type = build_pointer_type (integer_type_node); | |
4969 | pppchar_type | |
4970 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
4971 | ||
642970a3 | 4972 | gfc_init_coarray_decl (true); |
70b5944a | 4973 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 4, |
4974 | gfc_build_addr_expr (pint_type, argc), | |
4975 | gfc_build_addr_expr (pppchar_type, argv), | |
4976 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_this_image), | |
4977 | gfc_build_addr_expr (pint_type, gfort_gvar_caf_num_images)); | |
4978 | gfc_add_expr_to_block (&body, tmp); | |
4979 | } | |
4980 | ||
7257a5d2 | 4981 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 4982 | TREE_USED (argc) = 1; |
4983 | TREE_USED (argv) = 1; | |
389dd41b | 4984 | tmp = build_call_expr_loc (input_location, |
4985 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 4986 | gfc_add_expr_to_block (&body, tmp); |
4987 | ||
4988 | /* Add a call to set_options to set up the runtime library Fortran | |
4989 | language standard parameters. */ | |
4990 | { | |
4991 | tree array_type, array, var; | |
06f13dc1 | 4992 | VEC(constructor_elt,gc) *v = NULL; |
7257a5d2 | 4993 | |
4994 | /* Passing a new option to the library requires four modifications: | |
4995 | + add it to the tree_cons list below | |
4996 | + change the array size in the call to build_array_type | |
4997 | + change the first argument to the library call | |
4998 | gfor_fndecl_set_options | |
4999 | + modify the library (runtime/compile_options.c)! */ | |
5000 | ||
06f13dc1 | 5001 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5002 | build_int_cst (integer_type_node, | |
5003 | gfc_option.warn_std)); | |
5004 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5005 | build_int_cst (integer_type_node, | |
5006 | gfc_option.allow_std)); | |
5007 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5008 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5009 | /* TODO: This is the old -fdump-core option, which is unused but |
5010 | passed due to ABI compatibility; remove when bumping the | |
5011 | library ABI. */ | |
06f13dc1 | 5012 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5013 | build_int_cst (integer_type_node, | |
b2130263 | 5014 | 0)); |
06f13dc1 | 5015 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5016 | build_int_cst (integer_type_node, | |
5017 | gfc_option.flag_backtrace)); | |
5018 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5019 | build_int_cst (integer_type_node, | |
5020 | gfc_option.flag_sign_zero)); | |
5021 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5022 | build_int_cst (integer_type_node, | |
5023 | (gfc_option.rtcheck | |
5024 | & GFC_RTCHECK_BOUNDS))); | |
5025 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5026 | build_int_cst (integer_type_node, | |
5027 | gfc_option.flag_range_check)); | |
7257a5d2 | 5028 | |
5029 | array_type = build_array_type (integer_type_node, | |
35bf1214 | 5030 | build_index_type (size_int (7))); |
06f13dc1 | 5031 | array = build_constructor (array_type, v); |
7257a5d2 | 5032 | TREE_CONSTANT (array) = 1; |
5033 | TREE_STATIC (array) = 1; | |
5034 | ||
5035 | /* Create a static variable to hold the jump table. */ | |
5036 | var = gfc_create_var (array_type, "options"); | |
5037 | TREE_CONSTANT (var) = 1; | |
5038 | TREE_STATIC (var) = 1; | |
5039 | TREE_READONLY (var) = 1; | |
5040 | DECL_INITIAL (var) = array; | |
5041 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); | |
5042 | ||
389dd41b | 5043 | tmp = build_call_expr_loc (input_location, |
5044 | gfor_fndecl_set_options, 2, | |
7257a5d2 | 5045 | build_int_cst (integer_type_node, 8), var); |
5046 | gfc_add_expr_to_block (&body, tmp); | |
5047 | } | |
5048 | ||
5049 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5050 | the library will raise a FPE when needed. */ | |
5051 | if (gfc_option.fpe != 0) | |
5052 | { | |
389dd41b | 5053 | tmp = build_call_expr_loc (input_location, |
5054 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5055 | build_int_cst (integer_type_node, |
5056 | gfc_option.fpe)); | |
5057 | gfc_add_expr_to_block (&body, tmp); | |
5058 | } | |
5059 | ||
5060 | /* If this is the main program and an -fconvert option was provided, | |
5061 | add a call to set_convert. */ | |
5062 | ||
5063 | if (gfc_option.convert != GFC_CONVERT_NATIVE) | |
5064 | { | |
389dd41b | 5065 | tmp = build_call_expr_loc (input_location, |
5066 | gfor_fndecl_set_convert, 1, | |
7257a5d2 | 5067 | build_int_cst (integer_type_node, |
5068 | gfc_option.convert)); | |
5069 | gfc_add_expr_to_block (&body, tmp); | |
5070 | } | |
5071 | ||
5072 | /* If this is the main program and an -frecord-marker option was provided, | |
5073 | add a call to set_record_marker. */ | |
5074 | ||
5075 | if (gfc_option.record_marker != 0) | |
5076 | { | |
389dd41b | 5077 | tmp = build_call_expr_loc (input_location, |
5078 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5079 | build_int_cst (integer_type_node, |
5080 | gfc_option.record_marker)); | |
5081 | gfc_add_expr_to_block (&body, tmp); | |
5082 | } | |
5083 | ||
5084 | if (gfc_option.max_subrecord_length != 0) | |
5085 | { | |
389dd41b | 5086 | tmp = build_call_expr_loc (input_location, |
5087 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5088 | build_int_cst (integer_type_node, |
5089 | gfc_option.max_subrecord_length)); | |
5090 | gfc_add_expr_to_block (&body, tmp); | |
5091 | } | |
5092 | ||
5093 | /* Call MAIN__(). */ | |
389dd41b | 5094 | tmp = build_call_expr_loc (input_location, |
5095 | fndecl, 0); | |
7257a5d2 | 5096 | gfc_add_expr_to_block (&body, tmp); |
5097 | ||
43702da6 | 5098 | /* Mark MAIN__ as used. */ |
5099 | TREE_USED (fndecl) = 1; | |
5100 | ||
70b5944a | 5101 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
5102 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
5103 | { | |
5104 | /* Per F2008, 8.5.1 END of the main program implies a | |
5105 | SYNC MEMORY. */ | |
b9a16870 | 5106 | tmp = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
70b5944a | 5107 | tmp = build_call_expr_loc (input_location, tmp, 0); |
5108 | gfc_add_expr_to_block (&body, tmp); | |
5109 | ||
5110 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); | |
5111 | gfc_add_expr_to_block (&body, tmp); | |
5112 | } | |
5113 | ||
7257a5d2 | 5114 | /* "return 0". */ |
fd779e1d | 5115 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5116 | DECL_RESULT (ftn_main), | |
5117 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5118 | tmp = build1_v (RETURN_EXPR, tmp); |
5119 | gfc_add_expr_to_block (&body, tmp); | |
5120 | ||
5121 | ||
5122 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5123 | decl = getdecls (); | |
5124 | ||
5125 | /* Finish off this function and send it for code generation. */ | |
5126 | poplevel (1, 0, 1); | |
5127 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; | |
5128 | ||
5129 | DECL_SAVED_TREE (ftn_main) | |
5130 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5131 | DECL_INITIAL (ftn_main)); | |
5132 | ||
5133 | /* Output the GENERIC tree. */ | |
5134 | dump_function (TDI_original, ftn_main); | |
5135 | ||
bb982f66 | 5136 | cgraph_finalize_function (ftn_main, true); |
43702da6 | 5137 | |
5138 | if (old_context) | |
5139 | { | |
5140 | pop_function_context (); | |
5141 | saved_function_decls = saved_parent_function_decls; | |
5142 | } | |
5143 | current_function_decl = old_context; | |
7257a5d2 | 5144 | } |
5145 | ||
5146 | ||
89ac8ba1 | 5147 | /* Get the result expression for a procedure. */ |
5148 | ||
5149 | static tree | |
5150 | get_proc_result (gfc_symbol* sym) | |
5151 | { | |
5152 | if (sym->attr.subroutine || sym == sym->result) | |
5153 | { | |
5154 | if (current_fake_result_decl != NULL) | |
5155 | return TREE_VALUE (current_fake_result_decl); | |
5156 | ||
5157 | return NULL_TREE; | |
5158 | } | |
5159 | ||
5160 | return sym->result->backend_decl; | |
5161 | } | |
5162 | ||
5163 | ||
5164 | /* Generate an appropriate return-statement for a procedure. */ | |
5165 | ||
5166 | tree | |
5167 | gfc_generate_return (void) | |
5168 | { | |
5169 | gfc_symbol* sym; | |
5170 | tree result; | |
5171 | tree fndecl; | |
5172 | ||
5173 | sym = current_procedure_symbol; | |
5174 | fndecl = sym->backend_decl; | |
5175 | ||
5176 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5177 | result = NULL_TREE; | |
5178 | else | |
5179 | { | |
5180 | result = get_proc_result (sym); | |
5181 | ||
5182 | /* Set the return value to the dummy result variable. The | |
5183 | types may be different for scalar default REAL functions | |
5184 | with -ff2c, therefore we have to convert. */ | |
5185 | if (result != NULL_TREE) | |
5186 | { | |
5187 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5188 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5189 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5190 | result); | |
89ac8ba1 | 5191 | } |
5192 | } | |
5193 | ||
5194 | return build1_v (RETURN_EXPR, result); | |
5195 | } | |
5196 | ||
5197 | ||
4ee9c684 | 5198 | /* Generate code for a function. */ |
5199 | ||
5200 | void | |
5201 | gfc_generate_function_code (gfc_namespace * ns) | |
5202 | { | |
5203 | tree fndecl; | |
5204 | tree old_context; | |
5205 | tree decl; | |
5206 | tree tmp; | |
89ac8ba1 | 5207 | stmtblock_t init, cleanup; |
4ee9c684 | 5208 | stmtblock_t body; |
89ac8ba1 | 5209 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5210 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5211 | gfc_symbol *sym; |
89ac8ba1 | 5212 | gfc_symbol *previous_procedure_symbol; |
2294b616 | 5213 | int rank; |
e50e62f5 | 5214 | bool is_recursive; |
4ee9c684 | 5215 | |
5216 | sym = ns->proc_name; | |
89ac8ba1 | 5217 | previous_procedure_symbol = current_procedure_symbol; |
5218 | current_procedure_symbol = sym; | |
1b716045 | 5219 | |
4ee9c684 | 5220 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5221 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5222 | sym->tlink = sym; |
5223 | ||
5224 | /* Create the declaration for functions with global scope. */ | |
5225 | if (!sym->backend_decl) | |
d896f9b3 | 5226 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5227 | |
5228 | fndecl = sym->backend_decl; | |
5229 | old_context = current_function_decl; | |
5230 | ||
5231 | if (old_context) | |
5232 | { | |
5233 | push_function_context (); | |
5234 | saved_parent_function_decls = saved_function_decls; | |
5235 | saved_function_decls = NULL_TREE; | |
5236 | } | |
5237 | ||
1b716045 | 5238 | trans_function_start (sym); |
4ee9c684 | 5239 | |
89ac8ba1 | 5240 | gfc_init_block (&init); |
4ee9c684 | 5241 | |
c6871095 | 5242 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
5243 | { | |
5244 | /* Copy length backend_decls to all entry point result | |
5245 | symbols. */ | |
5246 | gfc_entry_list *el; | |
5247 | tree backend_decl; | |
5248 | ||
eeebe20b | 5249 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
5250 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 5251 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 5252 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 5253 | } |
5254 | ||
4ee9c684 | 5255 | /* Translate COMMON blocks. */ |
5256 | gfc_trans_common (ns); | |
5257 | ||
c750cc52 | 5258 | /* Null the parent fake result declaration if this namespace is |
5259 | a module function or an external procedures. */ | |
5260 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5261 | || ns->parent == NULL) | |
5262 | parent_fake_result_decl = NULL_TREE; | |
5263 | ||
2b685f8e | 5264 | gfc_generate_contained_functions (ns); |
5265 | ||
9579733e | 5266 | nonlocal_dummy_decls = NULL; |
5267 | nonlocal_dummy_decl_pset = NULL; | |
5268 | ||
a961ca30 | 5269 | has_coarray_vars = false; |
4ee9c684 | 5270 | generate_local_vars (ns); |
5b11d932 | 5271 | |
a961ca30 | 5272 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5273 | generate_coarray_init (ns); | |
5274 | ||
c750cc52 | 5275 | /* Keep the parent fake result declaration in module functions |
5276 | or external procedures. */ | |
5277 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5278 | || ns->parent == NULL) | |
5279 | current_fake_result_decl = parent_fake_result_decl; | |
5280 | else | |
5281 | current_fake_result_decl = NULL_TREE; | |
5282 | ||
89ac8ba1 | 5283 | is_recursive = sym->attr.recursive |
5284 | || (sym->attr.entry_master | |
5285 | && sym->ns->entries->sym->attr.recursive); | |
5286 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5287 | && !is_recursive | |
5288 | && !gfc_option.flag_recursive) | |
5289 | { | |
5290 | char * msg; | |
5291 | ||
5292 | asprintf (&msg, "Recursive call to nonrecursive procedure '%s'", | |
5293 | sym->name); | |
5294 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); | |
5295 | TREE_STATIC (recurcheckvar) = 1; | |
5296 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
5297 | gfc_add_expr_to_block (&init, recurcheckvar); | |
5298 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
5299 | &sym->declared_at, msg); | |
5300 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 5301 | free (msg); |
89ac8ba1 | 5302 | } |
4ee9c684 | 5303 | |
5304 | /* Now generate the code for the body of this function. */ | |
5305 | gfc_init_block (&body); | |
5306 | ||
5307 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 5308 | && sym->attr.subroutine) |
4ee9c684 | 5309 | { |
5310 | tree alternate_return; | |
c750cc52 | 5311 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 5312 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 5313 | } |
5314 | ||
1b716045 | 5315 | if (ns->entries) |
5316 | { | |
5317 | /* Jump to the correct entry point. */ | |
5318 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
5319 | gfc_add_expr_to_block (&body, tmp); | |
5320 | } | |
5321 | ||
a4abf8a0 | 5322 | /* If bounds-checking is enabled, generate code to check passed in actual |
5323 | arguments against the expected dummy argument attributes (e.g. string | |
5324 | lengths). */ | |
c1630d65 | 5325 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 5326 | add_argument_checking (&body, sym); |
5327 | ||
4ee9c684 | 5328 | tmp = gfc_trans_code (ns->code); |
5329 | gfc_add_expr_to_block (&body, tmp); | |
5330 | ||
4ee9c684 | 5331 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node) |
5332 | { | |
89ac8ba1 | 5333 | tree result = get_proc_result (sym); |
4ee9c684 | 5334 | |
42766cb3 | 5335 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 5336 | { |
deb7edfc | 5337 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
5338 | && sym->result == sym) | |
5339 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
5340 | null_pointer_node)); | |
42766cb3 | 5341 | else if (sym->ts.type == BT_CLASS |
5342 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 5343 | && CLASS_DATA (sym)->attr.dimension == 0 |
5344 | && sym->result == sym) | |
42766cb3 | 5345 | { |
5346 | tmp = CLASS_DATA (sym)->backend_decl; | |
5347 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
5348 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
5349 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
5350 | null_pointer_node)); | |
5351 | } | |
deb7edfc | 5352 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 5353 | && sym->ts.u.derived->attr.alloc_comp |
5354 | && !sym->attr.allocatable) | |
53169279 | 5355 | { |
5356 | rank = sym->as ? sym->as->rank : 0; | |
89ac8ba1 | 5357 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, result, rank); |
5358 | gfc_add_expr_to_block (&init, tmp); | |
53169279 | 5359 | } |
5176859a | 5360 | } |
e50e62f5 | 5361 | |
fa7b6574 | 5362 | if (result == NULL_TREE) |
5363 | { | |
5364 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 5365 | if (warn_return_type && sym == sym->result) |
fa7b6574 | 5366 | gfc_warning ("Return value of function '%s' at %L not set", |
5367 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5368 | if (warn_return_type) |
5369 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 5370 | } |
4ee9c684 | 5371 | else |
89ac8ba1 | 5372 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 5373 | } |
89ac8ba1 | 5374 | |
5375 | gfc_init_block (&cleanup); | |
5376 | ||
5377 | /* Reset recursion-check variable. */ | |
5378 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5379 | && !is_recursive | |
5ae82d58 | 5380 | && !gfc_option.gfc_flag_openmp |
89ac8ba1 | 5381 | && recurcheckvar != NULL_TREE) |
e50e62f5 | 5382 | { |
89ac8ba1 | 5383 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
5384 | recurcheckvar = NULL; | |
e50e62f5 | 5385 | } |
2294b616 | 5386 | |
89ac8ba1 | 5387 | /* Finish the function body and add init and cleanup code. */ |
5388 | tmp = gfc_finish_block (&body); | |
5389 | gfc_start_wrapped_block (&try_block, tmp); | |
5390 | /* Add code to create and cleanup arrays. */ | |
5391 | gfc_trans_deferred_vars (sym, &try_block); | |
5392 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
5393 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 5394 | |
5395 | /* Add all the decls we created during processing. */ | |
5396 | decl = saved_function_decls; | |
5397 | while (decl) | |
5398 | { | |
5399 | tree next; | |
5400 | ||
1767a056 | 5401 | next = DECL_CHAIN (decl); |
5402 | DECL_CHAIN (decl) = NULL_TREE; | |
ebad7c3e | 5403 | if (GFC_DECL_PUSH_TOPLEVEL (decl)) |
5404 | pushdecl_top_level (decl); | |
5405 | else | |
5406 | pushdecl (decl); | |
4ee9c684 | 5407 | decl = next; |
5408 | } | |
5409 | saved_function_decls = NULL_TREE; | |
5410 | ||
89ac8ba1 | 5411 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 5412 | decl = getdecls (); |
4ee9c684 | 5413 | |
5414 | /* Finish off this function and send it for code generation. */ | |
5415 | poplevel (1, 0, 1); | |
5416 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
5417 | ||
e5004242 | 5418 | DECL_SAVED_TREE (fndecl) |
5419 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5420 | DECL_INITIAL (fndecl)); | |
5421 | ||
9579733e | 5422 | if (nonlocal_dummy_decls) |
5423 | { | |
5424 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
5425 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
5426 | pointer_set_destroy (nonlocal_dummy_decl_pset); | |
5427 | nonlocal_dummy_decls = NULL; | |
5428 | nonlocal_dummy_decl_pset = NULL; | |
5429 | } | |
5430 | ||
4ee9c684 | 5431 | /* Output the GENERIC tree. */ |
5432 | dump_function (TDI_original, fndecl); | |
5433 | ||
5434 | /* Store the end of the function, so that we get good line number | |
5435 | info for the epilogue. */ | |
5436 | cfun->function_end_locus = input_location; | |
5437 | ||
5438 | /* We're leaving the context of this function, so zap cfun. | |
5439 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
5440 | tree_rest_of_compilation. */ | |
87d4aa85 | 5441 | set_cfun (NULL); |
4ee9c684 | 5442 | |
5443 | if (old_context) | |
5444 | { | |
5445 | pop_function_context (); | |
5446 | saved_function_decls = saved_parent_function_decls; | |
5447 | } | |
5448 | current_function_decl = old_context; | |
5449 | ||
a961ca30 | 5450 | if (decl_function_context (fndecl) && !gfc_option.coarray == GFC_FCOARRAY_LIB |
5451 | && has_coarray_vars) | |
6374121b | 5452 | /* Register this function with cgraph just far enough to get it |
a961ca30 | 5453 | added to our parent's nested function list. |
5454 | If there are static coarrays in this function, the nested _caf_init | |
5455 | function has already called cgraph_create_node, which also created | |
5456 | the cgraph node for this function. */ | |
460beda6 | 5457 | (void) cgraph_create_node (fndecl); |
4ee9c684 | 5458 | else |
bb982f66 | 5459 | cgraph_finalize_function (fndecl, true); |
df4d540f | 5460 | |
5461 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5462 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 5463 | |
5464 | if (sym->attr.is_main_program) | |
5465 | create_main_function (fndecl); | |
89ac8ba1 | 5466 | |
5467 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 5468 | } |
5469 | ||
7257a5d2 | 5470 | |
4ee9c684 | 5471 | void |
5472 | gfc_generate_constructors (void) | |
5473 | { | |
22d678e8 | 5474 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 5475 | #if 0 |
5476 | tree fnname; | |
5477 | tree type; | |
5478 | tree fndecl; | |
5479 | tree decl; | |
5480 | tree tmp; | |
5481 | ||
5482 | if (gfc_static_ctors == NULL_TREE) | |
5483 | return; | |
5484 | ||
db85cc4f | 5485 | fnname = get_file_function_name ("I"); |
e1036019 | 5486 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 5487 | |
e60a6f7b | 5488 | fndecl = build_decl (input_location, |
5489 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 5490 | TREE_PUBLIC (fndecl) = 1; |
5491 | ||
e60a6f7b | 5492 | decl = build_decl (input_location, |
5493 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 5494 | DECL_ARTIFICIAL (decl) = 1; |
5495 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 5496 | DECL_CONTEXT (decl) = fndecl; |
5497 | DECL_RESULT (fndecl) = decl; | |
5498 | ||
5499 | pushdecl (fndecl); | |
5500 | ||
5501 | current_function_decl = fndecl; | |
5502 | ||
b2c4af5e | 5503 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 5504 | |
b2c4af5e | 5505 | make_decl_rtl (fndecl); |
4ee9c684 | 5506 | |
b31f705b | 5507 | init_function_start (fndecl); |
4ee9c684 | 5508 | |
4ee9c684 | 5509 | pushlevel (0); |
5510 | ||
5511 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
5512 | { | |
389dd41b | 5513 | tmp = build_call_expr_loc (input_location, |
5514 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 5515 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 5516 | } |
5517 | ||
e5004242 | 5518 | decl = getdecls (); |
4ee9c684 | 5519 | poplevel (1, 0, 1); |
5520 | ||
5521 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 5522 | DECL_SAVED_TREE (fndecl) |
5523 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5524 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 5525 | |
5526 | free_after_parsing (cfun); | |
5527 | free_after_compilation (cfun); | |
5528 | ||
6148a911 | 5529 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 5530 | |
5531 | current_function_decl = NULL_TREE; | |
5532 | #endif | |
5533 | } | |
5534 | ||
9ec7c303 | 5535 | /* Translates a BLOCK DATA program unit. This means emitting the |
5536 | commons contained therein plus their initializations. We also emit | |
5537 | a globally visible symbol to make sure that each BLOCK DATA program | |
5538 | unit remains unique. */ | |
5539 | ||
5540 | void | |
5541 | gfc_generate_block_data (gfc_namespace * ns) | |
5542 | { | |
5543 | tree decl; | |
5544 | tree id; | |
5545 | ||
b31f705b | 5546 | /* Tell the backend the source location of the block data. */ |
5547 | if (ns->proc_name) | |
5548 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
5549 | else | |
5550 | gfc_set_backend_locus (&gfc_current_locus); | |
5551 | ||
5552 | /* Process the DATA statements. */ | |
9ec7c303 | 5553 | gfc_trans_common (ns); |
5554 | ||
b31f705b | 5555 | /* Create a global symbol with the mane of the block data. This is to |
5556 | generate linker errors if the same name is used twice. It is never | |
5557 | really used. */ | |
9ec7c303 | 5558 | if (ns->proc_name) |
5559 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
5560 | else | |
5561 | id = get_identifier ("__BLOCK_DATA__"); | |
5562 | ||
e60a6f7b | 5563 | decl = build_decl (input_location, |
5564 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 5565 | TREE_PUBLIC (decl) = 1; |
5566 | TREE_STATIC (decl) = 1; | |
df4d540f | 5567 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 5568 | |
5569 | pushdecl (decl); | |
5570 | rest_of_decl_compilation (decl, 1, 0); | |
5571 | } | |
5572 | ||
b549d2a5 | 5573 | |
6a7084d7 | 5574 | /* Process the local variables of a BLOCK construct. */ |
5575 | ||
5576 | void | |
3c82e013 | 5577 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 5578 | { |
5579 | tree decl; | |
5580 | ||
5581 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 5582 | has_coarray_vars = false; |
5583 | ||
6a7084d7 | 5584 | generate_local_vars (ns); |
5585 | ||
a961ca30 | 5586 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5587 | generate_coarray_init (ns); | |
5588 | ||
6a7084d7 | 5589 | decl = saved_local_decls; |
5590 | while (decl) | |
5591 | { | |
5592 | tree next; | |
5593 | ||
1767a056 | 5594 | next = DECL_CHAIN (decl); |
5595 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 5596 | pushdecl (decl); |
5597 | decl = next; | |
5598 | } | |
5599 | saved_local_decls = NULL_TREE; | |
5600 | } | |
5601 | ||
5602 | ||
4ee9c684 | 5603 | #include "gt-fortran-trans-decl.h" |