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4ee9c684 | 1 | /* Backend function setup |
3aea1f79 | 2 | Copyright (C) 2002-2014 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
cb4070e0 | 26 | #include "tm.h" |
4ee9c684 | 27 | #include "tree.h" |
9ed99284 | 28 | #include "stringpool.h" |
29 | #include "stor-layout.h" | |
30 | #include "varasm.h" | |
31 | #include "attribs.h" | |
4ee9c684 | 32 | #include "tree-dump.h" |
a8783bee | 33 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
4ee9c684 | 34 | #include "ggc.h" |
7cbc820e | 35 | #include "diagnostic-core.h" /* For internal_error. */ |
36 | #include "toplev.h" /* For announce_function. */ | |
4ee9c684 | 37 | #include "target.h" |
38 | #include "function.h" | |
4ee9c684 | 39 | #include "flags.h" |
40 | #include "cgraph.h" | |
df4d540f | 41 | #include "debug.h" |
4ee9c684 | 42 | #include "gfortran.h" |
9579733e | 43 | #include "pointer-set.h" |
126387b5 | 44 | #include "constructor.h" |
4ee9c684 | 45 | #include "trans.h" |
46 | #include "trans-types.h" | |
47 | #include "trans-array.h" | |
48 | #include "trans-const.h" | |
49 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
50 | #include "trans-stmt.h" | |
51 | ||
52 | #define MAX_LABEL_VALUE 99999 | |
53 | ||
54 | ||
55 | /* Holds the result of the function if no result variable specified. */ | |
56 | ||
57 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 58 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 59 | |
4ee9c684 | 60 | |
61 | /* Holds the variable DECLs for the current function. */ | |
62 | ||
d4163395 | 63 | static GTY(()) tree saved_function_decls; |
64 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 65 | |
9579733e | 66 | static struct pointer_set_t *nonlocal_dummy_decl_pset; |
67 | static GTY(()) tree nonlocal_dummy_decls; | |
4ee9c684 | 68 | |
6a7084d7 | 69 | /* Holds the variable DECLs that are locals. */ |
70 | ||
71 | static GTY(()) tree saved_local_decls; | |
72 | ||
4ee9c684 | 73 | /* The namespace of the module we're currently generating. Only used while |
74 | outputting decls for module variables. Do not rely on this being set. */ | |
75 | ||
76 | static gfc_namespace *module_namespace; | |
77 | ||
89ac8ba1 | 78 | /* The currently processed procedure symbol. */ |
79 | static gfc_symbol* current_procedure_symbol = NULL; | |
80 | ||
4ee9c684 | 81 | |
a961ca30 | 82 | /* With -fcoarray=lib: For generating the registering call |
83 | of static coarrays. */ | |
84 | static bool has_coarray_vars; | |
85 | static stmtblock_t caf_init_block; | |
86 | ||
87 | ||
4ee9c684 | 88 | /* List of static constructor functions. */ |
89 | ||
90 | tree gfc_static_ctors; | |
91 | ||
92 | ||
93 | /* Function declarations for builtin library functions. */ | |
94 | ||
4ee9c684 | 95 | tree gfor_fndecl_pause_numeric; |
96 | tree gfor_fndecl_pause_string; | |
97 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 98 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 99 | tree gfor_fndecl_stop_string; |
070cc790 | 100 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 101 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 102 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 103 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 104 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 105 | tree gfor_fndecl_os_error; |
50ad5fa2 | 106 | tree gfor_fndecl_generate_error; |
7257a5d2 | 107 | tree gfor_fndecl_set_args; |
8c84a5de | 108 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 109 | tree gfor_fndecl_set_options; |
15774a8b | 110 | tree gfor_fndecl_set_convert; |
f23886ab | 111 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 112 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 113 | tree gfor_fndecl_ctime; |
114 | tree gfor_fndecl_fdate; | |
dbc97b88 | 115 | tree gfor_fndecl_ttynam; |
4ee9c684 | 116 | tree gfor_fndecl_in_pack; |
117 | tree gfor_fndecl_in_unpack; | |
118 | tree gfor_fndecl_associated; | |
72ce5390 | 119 | tree gfor_fndecl_system_clock4; |
120 | tree gfor_fndecl_system_clock8; | |
4ee9c684 | 121 | |
122 | ||
70b5944a | 123 | /* Coarray run-time library function decls. */ |
124 | tree gfor_fndecl_caf_init; | |
125 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 126 | tree gfor_fndecl_caf_this_image; |
127 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 128 | tree gfor_fndecl_caf_register; |
d0d776fb | 129 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 130 | tree gfor_fndecl_caf_get; |
131 | tree gfor_fndecl_caf_send; | |
132 | tree gfor_fndecl_caf_sendget; | |
70b5944a | 133 | tree gfor_fndecl_caf_critical; |
134 | tree gfor_fndecl_caf_end_critical; | |
135 | tree gfor_fndecl_caf_sync_all; | |
136 | tree gfor_fndecl_caf_sync_images; | |
137 | tree gfor_fndecl_caf_error_stop; | |
138 | tree gfor_fndecl_caf_error_stop_str; | |
79ed4a8e | 139 | tree gfor_fndecl_co_max; |
140 | tree gfor_fndecl_co_min; | |
141 | tree gfor_fndecl_co_sum; | |
70b5944a | 142 | |
70b5944a | 143 | |
4ee9c684 | 144 | /* Math functions. Many other math functions are handled in |
145 | trans-intrinsic.c. */ | |
146 | ||
920e54ef | 147 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 148 | tree gfor_fndecl_math_ishftc4; |
149 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 150 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 151 | |
152 | ||
153 | /* String functions. */ | |
154 | ||
4ee9c684 | 155 | tree gfor_fndecl_compare_string; |
156 | tree gfor_fndecl_concat_string; | |
157 | tree gfor_fndecl_string_len_trim; | |
158 | tree gfor_fndecl_string_index; | |
159 | tree gfor_fndecl_string_scan; | |
160 | tree gfor_fndecl_string_verify; | |
161 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 162 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 163 | tree gfor_fndecl_adjustl; |
164 | tree gfor_fndecl_adjustr; | |
b44437b9 | 165 | tree gfor_fndecl_select_string; |
40b806de | 166 | tree gfor_fndecl_compare_string_char4; |
167 | tree gfor_fndecl_concat_string_char4; | |
168 | tree gfor_fndecl_string_len_trim_char4; | |
169 | tree gfor_fndecl_string_index_char4; | |
170 | tree gfor_fndecl_string_scan_char4; | |
171 | tree gfor_fndecl_string_verify_char4; | |
172 | tree gfor_fndecl_string_trim_char4; | |
173 | tree gfor_fndecl_string_minmax_char4; | |
174 | tree gfor_fndecl_adjustl_char4; | |
175 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 176 | tree gfor_fndecl_select_string_char4; |
177 | ||
178 | ||
179 | /* Conversion between character kinds. */ | |
180 | tree gfor_fndecl_convert_char1_to_char4; | |
181 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 182 | |
183 | ||
184 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 185 | tree gfor_fndecl_size0; |
186 | tree gfor_fndecl_size1; | |
9b057c29 | 187 | tree gfor_fndecl_iargc; |
4ee9c684 | 188 | |
59e2a584 | 189 | /* Intrinsic functions implemented in Fortran. */ |
190 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 191 | tree gfor_fndecl_si_kind; |
192 | tree gfor_fndecl_sr_kind; | |
193 | ||
4e8e57b0 | 194 | /* BLAS gemm functions. */ |
195 | tree gfor_fndecl_sgemm; | |
196 | tree gfor_fndecl_dgemm; | |
197 | tree gfor_fndecl_cgemm; | |
198 | tree gfor_fndecl_zgemm; | |
199 | ||
4ee9c684 | 200 | |
201 | static void | |
202 | gfc_add_decl_to_parent_function (tree decl) | |
203 | { | |
22d678e8 | 204 | gcc_assert (decl); |
4ee9c684 | 205 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
206 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 207 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 208 | saved_parent_function_decls = decl; |
209 | } | |
210 | ||
211 | void | |
212 | gfc_add_decl_to_function (tree decl) | |
213 | { | |
22d678e8 | 214 | gcc_assert (decl); |
4ee9c684 | 215 | TREE_USED (decl) = 1; |
216 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 217 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 218 | saved_function_decls = decl; |
219 | } | |
220 | ||
6a7084d7 | 221 | static void |
222 | add_decl_as_local (tree decl) | |
223 | { | |
224 | gcc_assert (decl); | |
225 | TREE_USED (decl) = 1; | |
226 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 227 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 228 | saved_local_decls = decl; |
229 | } | |
230 | ||
4ee9c684 | 231 | |
b797d6d3 | 232 | /* Build a backend label declaration. Set TREE_USED for named labels. |
233 | The context of the label is always the current_function_decl. All | |
234 | labels are marked artificial. */ | |
4ee9c684 | 235 | |
236 | tree | |
237 | gfc_build_label_decl (tree label_id) | |
238 | { | |
239 | /* 2^32 temporaries should be enough. */ | |
240 | static unsigned int tmp_num = 1; | |
241 | tree label_decl; | |
242 | char *label_name; | |
243 | ||
244 | if (label_id == NULL_TREE) | |
245 | { | |
246 | /* Build an internal label name. */ | |
247 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
248 | label_id = get_identifier (label_name); | |
249 | } | |
250 | else | |
251 | label_name = NULL; | |
252 | ||
253 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 254 | label_decl = build_decl (input_location, |
255 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 256 | DECL_CONTEXT (label_decl) = current_function_decl; |
257 | DECL_MODE (label_decl) = VOIDmode; | |
258 | ||
b797d6d3 | 259 | /* We always define the label as used, even if the original source |
260 | file never references the label. We don't want all kinds of | |
261 | spurious warnings for old-style Fortran code with too many | |
262 | labels. */ | |
263 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 264 | |
b797d6d3 | 265 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 266 | return label_decl; |
267 | } | |
268 | ||
269 | ||
b31f705b | 270 | /* Set the backend source location of a decl. */ |
271 | ||
272 | void | |
273 | gfc_set_decl_location (tree decl, locus * loc) | |
274 | { | |
b31f705b | 275 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 276 | } |
277 | ||
278 | ||
4ee9c684 | 279 | /* Return the backend label declaration for a given label structure, |
280 | or create it if it doesn't exist yet. */ | |
281 | ||
282 | tree | |
283 | gfc_get_label_decl (gfc_st_label * lp) | |
284 | { | |
4ee9c684 | 285 | if (lp->backend_decl) |
286 | return lp->backend_decl; | |
287 | else | |
288 | { | |
289 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
290 | tree label_decl; | |
291 | ||
292 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 293 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 294 | |
295 | /* Build a mangled name for the label. */ | |
296 | sprintf (label_name, "__label_%.6d", lp->value); | |
297 | ||
298 | /* Build the LABEL_DECL node. */ | |
299 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
300 | ||
301 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 302 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 303 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 304 | else |
305 | DECL_ARTIFICIAL (label_decl) = 1; | |
306 | ||
307 | /* Store the label in the label list and return the LABEL_DECL. */ | |
308 | lp->backend_decl = label_decl; | |
309 | return label_decl; | |
310 | } | |
311 | } | |
312 | ||
313 | ||
314 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
315 | ||
316 | static tree | |
317 | gfc_sym_identifier (gfc_symbol * sym) | |
318 | { | |
0509d0ee | 319 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
320 | return (get_identifier ("MAIN__")); | |
321 | else | |
322 | return (get_identifier (sym->name)); | |
4ee9c684 | 323 | } |
324 | ||
325 | ||
326 | /* Construct mangled name from symbol name. */ | |
327 | ||
328 | static tree | |
329 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
330 | { | |
331 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
332 | ||
c5d33754 | 333 | /* Prevent the mangling of identifiers that have an assigned |
334 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 335 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
336 | return get_identifier (sym->binding_label); | |
a90fe829 | 337 | |
4f0fae8e | 338 | if (sym->module == NULL) |
4ee9c684 | 339 | return gfc_sym_identifier (sym); |
340 | else | |
341 | { | |
f08a3f6f | 342 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 343 | return get_identifier (name); |
344 | } | |
345 | } | |
346 | ||
347 | ||
348 | /* Construct mangled function name from symbol name. */ | |
349 | ||
350 | static tree | |
351 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
352 | { | |
353 | int has_underscore; | |
354 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
355 | ||
c5d33754 | 356 | /* It may be possible to simply use the binding label if it's |
357 | provided, and remove the other checks. Then we could use it | |
358 | for other things if we wished. */ | |
359 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 360 | sym->binding_label) |
c5d33754 | 361 | /* use the binding label rather than the mangled name */ |
362 | return get_identifier (sym->binding_label); | |
363 | ||
4f0fae8e | 364 | if (sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 365 | || (sym->module != NULL && (sym->attr.external |
366 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4ee9c684 | 367 | { |
a2f97da7 | 368 | /* Main program is mangled into MAIN__. */ |
369 | if (sym->attr.is_main_program) | |
370 | return get_identifier ("MAIN__"); | |
371 | ||
372 | /* Intrinsic procedures are never mangled. */ | |
373 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 374 | return get_identifier (sym->name); |
375 | ||
376 | if (gfc_option.flag_underscoring) | |
377 | { | |
378 | has_underscore = strchr (sym->name, '_') != 0; | |
379 | if (gfc_option.flag_second_underscore && has_underscore) | |
380 | snprintf (name, sizeof name, "%s__", sym->name); | |
381 | else | |
382 | snprintf (name, sizeof name, "%s_", sym->name); | |
383 | return get_identifier (name); | |
384 | } | |
385 | else | |
386 | return get_identifier (sym->name); | |
387 | } | |
388 | else | |
389 | { | |
f08a3f6f | 390 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 391 | return get_identifier (name); |
392 | } | |
393 | } | |
394 | ||
395 | ||
1236e28b | 396 | void |
397 | gfc_set_decl_assembler_name (tree decl, tree name) | |
398 | { | |
399 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
400 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
401 | } | |
402 | ||
403 | ||
5ed82495 | 404 | /* Returns true if a variable of specified size should go on the stack. */ |
405 | ||
406 | int | |
407 | gfc_can_put_var_on_stack (tree size) | |
408 | { | |
409 | unsigned HOST_WIDE_INT low; | |
410 | ||
411 | if (!INTEGER_CST_P (size)) | |
412 | return 0; | |
413 | ||
414 | if (gfc_option.flag_max_stack_var_size < 0) | |
415 | return 1; | |
416 | ||
e1d65c9f | 417 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 418 | return 0; |
419 | ||
f9ae6f95 | 420 | low = TREE_INT_CST_LOW (size); |
5ed82495 | 421 | if (low > (unsigned HOST_WIDE_INT) gfc_option.flag_max_stack_var_size) |
422 | return 0; | |
423 | ||
424 | /* TODO: Set a per-function stack size limit. */ | |
425 | ||
426 | return 1; | |
427 | } | |
428 | ||
429 | ||
b7bf3f81 | 430 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
431 | an expression involving its corresponding pointer. There are | |
432 | 2 cases; one for variable size arrays, and one for everything else, | |
433 | because variable-sized arrays require one fewer level of | |
434 | indirection. */ | |
435 | ||
436 | static void | |
437 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
438 | { | |
439 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
440 | tree value; | |
441 | ||
442 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 443 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 444 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
445 | ptr_decl); | |
b7bf3f81 | 446 | |
447 | /* Check to see if we're dealing with a variable-sized array. */ | |
448 | if (sym->attr.dimension | |
a90fe829 | 449 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
450 | { | |
942043f8 | 451 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 452 | them here. */ |
453 | value = convert (TREE_TYPE (decl), ptr_decl); | |
454 | } | |
455 | else | |
456 | { | |
457 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
458 | ptr_decl); | |
389dd41b | 459 | value = build_fold_indirect_ref_loc (input_location, |
460 | ptr_decl); | |
b7bf3f81 | 461 | } |
462 | ||
463 | SET_DECL_VALUE_EXPR (decl, value); | |
464 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 465 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 466 | } |
467 | ||
468 | ||
b9c7fce7 | 469 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 470 | |
471 | static void | |
b9c7fce7 | 472 | gfc_finish_decl (tree decl) |
4ee9c684 | 473 | { |
b9c7fce7 | 474 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
475 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 476 | |
b9c7fce7 | 477 | if (TREE_CODE (decl) != VAR_DECL) |
478 | return; | |
4ee9c684 | 479 | |
b9c7fce7 | 480 | if (DECL_SIZE (decl) == NULL_TREE |
481 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
482 | layout_decl (decl, 0); | |
483 | ||
484 | /* A few consistency checks. */ | |
485 | /* A static variable with an incomplete type is an error if it is | |
486 | initialized. Also if it is not file scope. Otherwise, let it | |
487 | through, but if it is not `extern' then it may cause an error | |
488 | message later. */ | |
489 | /* An automatic variable with an incomplete type is an error. */ | |
490 | ||
491 | /* We should know the storage size. */ | |
492 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 493 | || (TREE_STATIC (decl) |
b9c7fce7 | 494 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
495 | : DECL_EXTERNAL (decl))); | |
496 | ||
497 | /* The storage size should be constant. */ | |
498 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
499 | || !DECL_SIZE (decl) | |
500 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 501 | } |
502 | ||
503 | ||
cf5f881f | 504 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
505 | ||
506 | void | |
507 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
508 | { | |
509 | if (!attr->dimension && !attr->codimension) | |
510 | { | |
511 | /* Handle scalar allocatable variables. */ | |
512 | if (attr->allocatable) | |
513 | { | |
514 | gfc_allocate_lang_decl (decl); | |
515 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
516 | } | |
517 | /* Handle scalar pointer variables. */ | |
518 | if (attr->pointer) | |
519 | { | |
520 | gfc_allocate_lang_decl (decl); | |
521 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
522 | } | |
523 | } | |
524 | } | |
525 | ||
526 | ||
4ee9c684 | 527 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
528 | ||
529 | static void | |
530 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
531 | { | |
c1977dbe | 532 | tree new_type; |
f888a3fb | 533 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
4ee9c684 | 534 | This is the equivalent of the TARGET variables. |
535 | We also need to set this if the variable is passed by reference in a | |
536 | CALL statement. */ | |
b549d2a5 | 537 | |
b7bf3f81 | 538 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 539 | if (sym->attr.cray_pointee) |
b7bf3f81 | 540 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 541 | |
4ee9c684 | 542 | if (sym->attr.target) |
543 | TREE_ADDRESSABLE (decl) = 1; | |
544 | /* If it wasn't used we wouldn't be getting it. */ | |
545 | TREE_USED (decl) = 1; | |
546 | ||
7415cfe4 | 547 | if (sym->attr.flavor == FL_PARAMETER |
548 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
549 | TREE_READONLY (decl) = 1; | |
550 | ||
4ee9c684 | 551 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
552 | because this would add them to the current scope rather than the | |
553 | function scope. */ | |
554 | if (current_function_decl != NULL_TREE) | |
555 | { | |
7af6a4af | 556 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 557 | || sym->result == sym) |
4ee9c684 | 558 | gfc_add_decl_to_function (decl); |
6a7084d7 | 559 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
560 | /* This is a BLOCK construct. */ | |
561 | add_decl_as_local (decl); | |
4ee9c684 | 562 | else |
563 | gfc_add_decl_to_parent_function (decl); | |
564 | } | |
565 | ||
b7bf3f81 | 566 | if (sym->attr.cray_pointee) |
567 | return; | |
568 | ||
c5cb468c | 569 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 570 | { |
571 | /* We need to put variables that are bind(c) into the common | |
572 | segment of the object file, because this is what C would do. | |
573 | gfortran would typically put them in either the BSS or | |
574 | initialized data segments, and only mark them as common if | |
575 | they were part of common blocks. However, if they are not put | |
ea657963 | 576 | into common space, then C cannot initialize global Fortran |
c5d33754 | 577 | variables that it interoperates with and the draft says that |
578 | either Fortran or C should be able to initialize it (but not | |
579 | both, of course.) (J3/04-007, section 15.3). */ | |
580 | TREE_PUBLIC(decl) = 1; | |
581 | DECL_COMMON(decl) = 1; | |
582 | } | |
a90fe829 | 583 | |
4ee9c684 | 584 | /* If a variable is USE associated, it's always external. */ |
585 | if (sym->attr.use_assoc) | |
586 | { | |
587 | DECL_EXTERNAL (decl) = 1; | |
588 | TREE_PUBLIC (decl) = 1; | |
589 | } | |
4f0fae8e | 590 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 591 | { |
6b20224d | 592 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 593 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 594 | |
87d9f569 | 595 | if (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used) |
c5cb468c | 596 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 597 | TREE_STATIC (decl) = 1; |
598 | } | |
599 | ||
f0d4969f | 600 | /* Derived types are a bit peculiar because of the possibility of |
601 | a default initializer; this must be applied each time the variable | |
602 | comes into scope it therefore need not be static. These variables | |
603 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 604 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 605 | SAVE_EXPLICIT. */ |
606 | if (!sym->attr.use_assoc | |
607 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 608 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
609 | || (gfc_option.coarray == GFC_FCOARRAY_LIB | |
610 | && sym->attr.codimension && !sym->attr.allocatable))) | |
4ee9c684 | 611 | TREE_STATIC (decl) = 1; |
ef814c81 | 612 | |
613 | if (sym->attr.volatile_) | |
614 | { | |
ef814c81 | 615 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 616 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 617 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
618 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 619 | } |
ef814c81 | 620 | |
4ee9c684 | 621 | /* Keep variables larger than max-stack-var-size off stack. */ |
622 | if (!sym->ns->proc_name->attr.recursive | |
623 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 624 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
625 | /* Put variable length auto array pointers always into stack. */ | |
626 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
627 | || sym->attr.dimension == 0 | |
628 | || sym->as->type != AS_EXPLICIT | |
629 | || sym->attr.pointer | |
630 | || sym->attr.allocatable) | |
631 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 632 | TREE_STATIC (decl) = 1; |
764f1175 | 633 | |
634 | /* Handle threadprivate variables. */ | |
9dda1f80 | 635 | if (sym->attr.threadprivate |
764f1175 | 636 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 637 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 638 | |
639 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 640 | } |
641 | ||
642 | ||
643 | /* Allocate the lang-specific part of a decl. */ | |
644 | ||
645 | void | |
646 | gfc_allocate_lang_decl (tree decl) | |
647 | { | |
cf5f881f | 648 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
649 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 650 | } |
651 | ||
652 | /* Remember a symbol to generate initialization/cleanup code at function | |
653 | entry/exit. */ | |
654 | ||
655 | static void | |
656 | gfc_defer_symbol_init (gfc_symbol * sym) | |
657 | { | |
658 | gfc_symbol *p; | |
659 | gfc_symbol *last; | |
660 | gfc_symbol *head; | |
661 | ||
662 | /* Don't add a symbol twice. */ | |
663 | if (sym->tlink) | |
664 | return; | |
665 | ||
666 | last = head = sym->ns->proc_name; | |
667 | p = last->tlink; | |
668 | ||
669 | /* Make sure that setup code for dummy variables which are used in the | |
670 | setup of other variables is generated first. */ | |
671 | if (sym->attr.dummy) | |
672 | { | |
673 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
674 | This is a circular list, so don't go past the head. */ | |
675 | while (p != head | |
676 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
677 | { | |
678 | last = p; | |
679 | p = p->tlink; | |
680 | } | |
681 | } | |
682 | /* Insert in between last and p. */ | |
683 | last->tlink = sym; | |
684 | sym->tlink = p; | |
685 | } | |
686 | ||
687 | ||
9f5a9ac5 | 688 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
689 | backend_decl for a module symbol, if it all ready exists. If the | |
690 | module gsymbol does not exist, it is created. If the symbol does | |
691 | not exist, it is added to the gsymbol namespace. Returns true if | |
692 | an existing backend_decl is found. */ | |
693 | ||
694 | bool | |
695 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
696 | { | |
697 | gfc_gsymbol *gsym; | |
698 | gfc_symbol *s; | |
699 | gfc_symtree *st; | |
700 | ||
701 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
702 | ||
703 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
704 | { | |
705 | st = NULL; | |
706 | s = NULL; | |
707 | ||
708 | if (gsym) | |
709 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
710 | ||
711 | if (!s) | |
712 | { | |
713 | if (!gsym) | |
714 | { | |
715 | gsym = gfc_get_gsymbol (sym->module); | |
716 | gsym->type = GSYM_MODULE; | |
717 | gsym->ns = gfc_get_namespace (NULL, 0); | |
718 | } | |
719 | ||
720 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
721 | st->n.sym = sym; | |
722 | sym->refs++; | |
723 | } | |
724 | else if (sym->attr.flavor == FL_DERIVED) | |
725 | { | |
c2958b6b | 726 | if (s && s->attr.flavor == FL_PROCEDURE) |
727 | { | |
728 | gfc_interface *intr; | |
729 | gcc_assert (s->attr.generic); | |
730 | for (intr = s->generic; intr; intr = intr->next) | |
731 | if (intr->sym->attr.flavor == FL_DERIVED) | |
732 | { | |
733 | s = intr->sym; | |
734 | break; | |
735 | } | |
736 | } | |
737 | ||
9f5a9ac5 | 738 | if (!s->backend_decl) |
739 | s->backend_decl = gfc_get_derived_type (s); | |
740 | gfc_copy_dt_decls_ifequal (s, sym, true); | |
741 | return true; | |
742 | } | |
743 | else if (s->backend_decl) | |
744 | { | |
85ec2f13 | 745 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 746 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
747 | true); | |
748 | else if (sym->ts.type == BT_CHARACTER) | |
749 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
750 | sym->backend_decl = s->backend_decl; | |
751 | return true; | |
752 | } | |
753 | } | |
754 | return false; | |
755 | } | |
756 | ||
757 | ||
4ee9c684 | 758 | /* Create an array index type variable with function scope. */ |
759 | ||
760 | static tree | |
761 | create_index_var (const char * pfx, int nest) | |
762 | { | |
763 | tree decl; | |
764 | ||
765 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
766 | if (nest) | |
767 | gfc_add_decl_to_parent_function (decl); | |
768 | else | |
769 | gfc_add_decl_to_function (decl); | |
770 | return decl; | |
771 | } | |
772 | ||
773 | ||
774 | /* Create variables to hold all the non-constant bits of info for a | |
775 | descriptorless array. Remember these in the lang-specific part of the | |
776 | type. */ | |
777 | ||
778 | static void | |
779 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
780 | { | |
781 | tree type; | |
782 | int dim; | |
783 | int nest; | |
7b82374f | 784 | gfc_namespace* procns; |
4ee9c684 | 785 | |
786 | type = TREE_TYPE (decl); | |
787 | ||
788 | /* We just use the descriptor, if there is one. */ | |
789 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
790 | return; | |
791 | ||
22d678e8 | 792 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 793 | procns = gfc_find_proc_namespace (sym->ns); |
794 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 795 | && !sym->attr.contained; |
796 | ||
a961ca30 | 797 | if (sym->attr.codimension && gfc_option.coarray == GFC_FCOARRAY_LIB |
7dce33fe | 798 | && sym->as->type != AS_ASSUMED_SHAPE |
a961ca30 | 799 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
800 | { | |
801 | tree token; | |
802 | ||
d881175c | 803 | token = gfc_create_var_np (build_qualified_type (pvoid_type_node, |
804 | TYPE_QUAL_RESTRICT), | |
805 | "caf_token"); | |
a961ca30 | 806 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
807 | DECL_ARTIFICIAL (token) = 1; | |
808 | TREE_STATIC (token) = 1; | |
809 | gfc_add_decl_to_function (token); | |
810 | } | |
811 | ||
4ee9c684 | 812 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
813 | { | |
814 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 815 | { |
816 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
817 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
818 | } | |
9ca15c9b | 819 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 820 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
821 | && (sym->as->type != AS_ASSUMED_SIZE | |
822 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 823 | { |
824 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
825 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
826 | } | |
4ee9c684 | 827 | |
828 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 829 | { |
830 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
831 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
832 | } | |
4ee9c684 | 833 | } |
076094b7 | 834 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
835 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
836 | { | |
837 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
838 | { | |
839 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
840 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
841 | } | |
842 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
843 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
844 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
845 | { | |
846 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
847 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
848 | } | |
849 | } | |
4ee9c684 | 850 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
851 | { | |
852 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
853 | "offset"); | |
86254bbf | 854 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
855 | ||
4ee9c684 | 856 | if (nest) |
857 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
858 | else | |
859 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
860 | } | |
d4163395 | 861 | |
862 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
863 | && sym->as->type != AS_ASSUMED_SIZE) | |
86254bbf | 864 | { |
865 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
866 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
867 | } | |
d4163395 | 868 | |
869 | if (POINTER_TYPE_P (type)) | |
870 | { | |
871 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
872 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
873 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
874 | type = TREE_TYPE (type); | |
875 | } | |
876 | ||
877 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
878 | { | |
879 | tree size, range; | |
880 | ||
fd779e1d | 881 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
882 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 883 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
884 | size); | |
885 | TYPE_DOMAIN (type) = range; | |
886 | layout_type (type); | |
887 | } | |
6cf159a6 | 888 | |
6cf159a6 | 889 | if (TYPE_NAME (type) != NULL_TREE |
890 | && GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1) != NULL_TREE | |
891 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, sym->as->rank - 1)) == VAR_DECL) | |
892 | { | |
893 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
894 | ||
895 | for (dim = 0; dim < sym->as->rank - 1; dim++) | |
896 | { | |
897 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
898 | gtype = TREE_TYPE (gtype); | |
899 | } | |
900 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
901 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
902 | TYPE_NAME (type) = NULL_TREE; | |
903 | } | |
904 | ||
905 | if (TYPE_NAME (type) == NULL_TREE) | |
906 | { | |
907 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
908 | ||
909 | for (dim = sym->as->rank - 1; dim >= 0; dim--) | |
910 | { | |
7130ec9d | 911 | tree lbound, ubound; |
912 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
913 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
914 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 915 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 916 | /* Ensure the bound variables aren't optimized out at -O0. |
917 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 918 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
919 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
920 | end up in debug info. */ | |
7130ec9d | 921 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
922 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
923 | { | |
924 | if (DECL_NAME (lbound) | |
925 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
926 | "lbound") != 0) | |
84bfaaeb | 927 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 928 | DECL_IGNORED_P (lbound) = 0; |
929 | } | |
930 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
931 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
932 | { | |
933 | if (DECL_NAME (ubound) | |
934 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
935 | "ubound") != 0) | |
84bfaaeb | 936 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 937 | DECL_IGNORED_P (ubound) = 0; |
938 | } | |
6cf159a6 | 939 | } |
e60a6f7b | 940 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
941 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 942 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
943 | } | |
4ee9c684 | 944 | } |
945 | ||
946 | ||
947 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 948 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 949 | initialization, and construct full type information. */ |
950 | ||
951 | static tree | |
952 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
953 | { | |
954 | tree decl; | |
955 | tree type; | |
956 | gfc_array_spec *as; | |
957 | char *name; | |
3d8dea5a | 958 | gfc_packed packed; |
4ee9c684 | 959 | int n; |
960 | bool known_size; | |
961 | ||
f00f6dd6 | 962 | if (sym->attr.pointer || sym->attr.allocatable |
963 | || (sym->as && sym->as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 964 | return dummy; |
965 | ||
966 | /* Add to list of variables if not a fake result variable. */ | |
967 | if (sym->attr.result || sym->attr.dummy) | |
968 | gfc_defer_symbol_init (sym); | |
969 | ||
970 | type = TREE_TYPE (dummy); | |
22d678e8 | 971 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
4ee9c684 | 972 | && POINTER_TYPE_P (type)); |
973 | ||
f888a3fb | 974 | /* Do we know the element size? */ |
4ee9c684 | 975 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 976 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 977 | |
4ee9c684 | 978 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (type))) |
979 | { | |
980 | /* For descriptorless arrays with known element size the actual | |
981 | argument is sufficient. */ | |
22d678e8 | 982 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
4ee9c684 | 983 | gfc_build_qualified_array (dummy, sym); |
984 | return dummy; | |
985 | } | |
986 | ||
987 | type = TREE_TYPE (type); | |
988 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
989 | { | |
cb8e3560 | 990 | /* Create a descriptorless array pointer. */ |
4ee9c684 | 991 | as = sym->as; |
3d8dea5a | 992 | packed = PACKED_NO; |
3d235846 | 993 | |
994 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
995 | are not repacked. */ | |
996 | if (!gfc_option.flag_repack_arrays || sym->attr.target) | |
4ee9c684 | 997 | { |
998 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 999 | packed = PACKED_FULL; |
4ee9c684 | 1000 | } |
1001 | else | |
1002 | { | |
1003 | if (as->type == AS_EXPLICIT) | |
1004 | { | |
3d8dea5a | 1005 | packed = PACKED_FULL; |
4ee9c684 | 1006 | for (n = 0; n < as->rank; n++) |
1007 | { | |
1008 | if (!(as->upper[n] | |
1009 | && as->lower[n] | |
1010 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1011 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1012 | { |
1013 | packed = PACKED_PARTIAL; | |
1014 | break; | |
1015 | } | |
4ee9c684 | 1016 | } |
1017 | } | |
1018 | else | |
3d8dea5a | 1019 | packed = PACKED_PARTIAL; |
4ee9c684 | 1020 | } |
1021 | ||
1022 | type = gfc_typenode_for_spec (&sym->ts); | |
e1b3b79b | 1023 | type = gfc_get_nodesc_array_type (type, sym->as, packed, |
1024 | !sym->attr.target); | |
4ee9c684 | 1025 | } |
1026 | else | |
1027 | { | |
1028 | /* We now have an expression for the element size, so create a fully | |
1029 | qualified type. Reset sym->backend decl or this will just return the | |
1030 | old type. */ | |
d95efb59 | 1031 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1032 | sym->backend_decl = NULL_TREE; |
1033 | type = gfc_sym_type (sym); | |
3d8dea5a | 1034 | packed = PACKED_FULL; |
4ee9c684 | 1035 | } |
1036 | ||
1037 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1038 | decl = build_decl (input_location, |
1039 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1040 | |
1041 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1042 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1043 | TREE_PUBLIC (decl) = 0; |
1044 | TREE_STATIC (decl) = 0; | |
1045 | DECL_EXTERNAL (decl) = 0; | |
1046 | ||
a1f1e248 | 1047 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1048 | if (sym->attr.optional) | |
1049 | TREE_NO_WARNING (decl) = 1; | |
1050 | ||
4ee9c684 | 1051 | /* We should never get deferred shape arrays here. We used to because of |
1052 | frontend bugs. */ | |
22d678e8 | 1053 | gcc_assert (sym->as->type != AS_DEFERRED); |
4ee9c684 | 1054 | |
3d8dea5a | 1055 | if (packed == PACKED_PARTIAL) |
1056 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1057 | else if (packed == PACKED_FULL) | |
1058 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1059 | |
1060 | gfc_build_qualified_array (decl, sym); | |
1061 | ||
1062 | if (DECL_LANG_SPECIFIC (dummy)) | |
1063 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1064 | else | |
1065 | gfc_allocate_lang_decl (decl); | |
1066 | ||
1067 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1068 | ||
1069 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1070 | || sym->attr.contained) | |
1071 | gfc_add_decl_to_function (decl); | |
1072 | else | |
1073 | gfc_add_decl_to_parent_function (decl); | |
1074 | ||
1075 | return decl; | |
1076 | } | |
1077 | ||
9579733e | 1078 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1079 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1080 | pointing to the artificial variable for debug info purposes. */ | |
1081 | ||
1082 | static void | |
1083 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1084 | { | |
1085 | tree decl, dummy; | |
1086 | ||
1087 | if (! nonlocal_dummy_decl_pset) | |
1088 | nonlocal_dummy_decl_pset = pointer_set_create (); | |
1089 | ||
1090 | if (pointer_set_insert (nonlocal_dummy_decl_pset, sym->backend_decl)) | |
1091 | return; | |
1092 | ||
1093 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1094 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1095 | TREE_TYPE (sym->backend_decl)); |
1096 | DECL_ARTIFICIAL (decl) = 0; | |
1097 | TREE_USED (decl) = 1; | |
1098 | TREE_PUBLIC (decl) = 0; | |
1099 | TREE_STATIC (decl) = 0; | |
1100 | DECL_EXTERNAL (decl) = 0; | |
1101 | if (DECL_BY_REFERENCE (dummy)) | |
1102 | DECL_BY_REFERENCE (decl) = 1; | |
1103 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1104 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1105 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1106 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1107 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1108 | nonlocal_dummy_decls = decl; |
1109 | } | |
4ee9c684 | 1110 | |
1111 | /* Return a constant or a variable to use as a string length. Does not | |
1112 | add the decl to the current scope. */ | |
1113 | ||
1114 | static tree | |
1115 | gfc_create_string_length (gfc_symbol * sym) | |
1116 | { | |
eeebe20b | 1117 | gcc_assert (sym->ts.u.cl); |
1118 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1119 | |
eeebe20b | 1120 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1121 | { |
a4abf8a0 | 1122 | tree length; |
774bbd60 | 1123 | const char *name; |
4ee9c684 | 1124 | |
873f242d | 1125 | /* The string length variable shall be in static memory if it is either |
1126 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1127 | relevant is "len=:" - otherwise, it is either a constant length or | |
1128 | it is an automatic variable. */ | |
be125be0 | 1129 | bool static_length = sym->attr.save |
1130 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
873f242d | 1131 | || (gfc_option.flag_max_stack_var_size == 0 |
1132 | && sym->ts.deferred && !sym->attr.dummy | |
1133 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1134 | |
1135 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1136 | variables as some systems do not support the "." in the assembler name. | |
1137 | For nonstatic variables, the "." does not appear in assembler. */ | |
1138 | if (static_length) | |
1139 | { | |
1140 | if (sym->module) | |
1141 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1142 | sym->name); | |
1143 | else | |
1144 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1145 | } | |
1146 | else if (sym->module) | |
774bbd60 | 1147 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1148 | else | |
1149 | name = gfc_get_string (".%s", sym->name); | |
1150 | ||
e60a6f7b | 1151 | length = build_decl (input_location, |
1152 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1153 | gfc_charlen_type_node); |
4ee9c684 | 1154 | DECL_ARTIFICIAL (length) = 1; |
1155 | TREE_USED (length) = 1; | |
d4163395 | 1156 | if (sym->ns->proc_name->tlink != NULL) |
1157 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1158 | |
eeebe20b | 1159 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1160 | |
be125be0 | 1161 | if (static_length) |
774bbd60 | 1162 | TREE_STATIC (length) = 1; |
1163 | ||
1164 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1165 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1166 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1167 | } |
1168 | ||
eeebe20b | 1169 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1170 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1171 | } |
1172 | ||
c8f1568f | 1173 | /* If a variable is assigned a label, we add another two auxiliary |
1174 | variables. */ | |
1175 | ||
1176 | static void | |
1177 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1178 | { | |
1179 | tree addr; | |
1180 | tree length; | |
1181 | tree decl; | |
1182 | ||
1183 | gcc_assert (sym->backend_decl); | |
1184 | ||
1185 | decl = sym->backend_decl; | |
1186 | gfc_allocate_lang_decl (decl); | |
1187 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1188 | length = build_decl (input_location, |
1189 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1190 | gfc_charlen_type_node); |
e60a6f7b | 1191 | addr = build_decl (input_location, |
1192 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1193 | pvoid_type_node); |
1194 | gfc_finish_var_decl (length, sym); | |
1195 | gfc_finish_var_decl (addr, sym); | |
1196 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1197 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1198 | target label's address. Otherwise, value is the length of a format string | |
1199 | and ASSIGN_ADDR is its address. */ | |
1200 | if (TREE_STATIC (length)) | |
35bf1214 | 1201 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1202 | else |
1203 | gfc_defer_symbol_init (sym); | |
1204 | ||
1205 | GFC_DECL_STRING_LEN (decl) = length; | |
1206 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1207 | } | |
4ee9c684 | 1208 | |
36b0a1b0 | 1209 | |
1210 | static tree | |
1211 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1212 | { | |
1213 | unsigned id; | |
1214 | tree attr; | |
1215 | ||
1216 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1217 | if (sym_attr.ext_attr & (1 << id)) | |
1218 | { | |
1219 | attr = build_tree_list ( | |
1220 | get_identifier (ext_attr_list[id].middle_end_name), | |
1221 | NULL_TREE); | |
1222 | list = chainon (list, attr); | |
1223 | } | |
1224 | ||
691447ab | 1225 | if (sym_attr.omp_declare_target) |
1226 | list = tree_cons (get_identifier ("omp declare target"), | |
1227 | NULL_TREE, list); | |
1228 | ||
36b0a1b0 | 1229 | return list; |
1230 | } | |
1231 | ||
1232 | ||
802532b9 | 1233 | static void build_function_decl (gfc_symbol * sym, bool global); |
1234 | ||
1235 | ||
4ee9c684 | 1236 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1237 | exist. */ | |
1238 | ||
1239 | tree | |
1240 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1241 | { | |
1242 | tree decl; | |
1243 | tree length = NULL_TREE; | |
36b0a1b0 | 1244 | tree attributes; |
4ee9c684 | 1245 | int byref; |
cd2c99b8 | 1246 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1247 | bool fun_or_res; |
4ee9c684 | 1248 | |
0b5dc8b5 | 1249 | gcc_assert (sym->attr.referenced |
9e45357a | 1250 | || sym->attr.flavor == FL_PROCEDURE |
1251 | || sym->attr.use_assoc | |
1252 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY | |
1253 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1254 | && sym->backend_decl)); | |
4ee9c684 | 1255 | |
ff70e443 | 1256 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1257 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1258 | else | |
1259 | byref = 0; | |
1260 | ||
09c509ed | 1261 | /* Make sure that the vtab for the declared type is completed. */ |
1262 | if (sym->ts.type == BT_CLASS) | |
1263 | { | |
50b4b37b | 1264 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1265 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1266 | { |
1267 | gfc_find_derived_vtab (c->ts.u.derived); | |
1268 | gfc_get_derived_type (sym->ts.u.derived); | |
1269 | } | |
09c509ed | 1270 | } |
1271 | ||
617125a6 | 1272 | /* All deferred character length procedures need to retain the backend |
1273 | decl, which is a pointer to the character length in the caller's | |
1274 | namespace and to declare a local character length. */ | |
1275 | if (!byref && sym->attr.function | |
1276 | && sym->ts.type == BT_CHARACTER | |
1277 | && sym->ts.deferred | |
1278 | && sym->ts.u.cl->passed_length == NULL | |
1279 | && sym->ts.u.cl->backend_decl | |
1280 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1281 | { | |
1282 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1283 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1284 | length = gfc_create_string_length (sym); | |
1285 | } | |
1286 | ||
8b9eb27e | 1287 | fun_or_res = byref && (sym->attr.result |
1288 | || (sym->attr.function && sym->ts.deferred)); | |
1289 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1290 | { |
1291 | /* Return via extra parameter. */ | |
1292 | if (sym->attr.result && byref | |
1293 | && !sym->backend_decl) | |
1294 | { | |
1295 | sym->backend_decl = | |
1296 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1297 | /* For entry master function skip over the __entry |
1298 | argument. */ | |
1299 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1300 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1301 | } |
1302 | ||
1303 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1304 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1305 | |
1306 | /* Create a character length variable. */ | |
1307 | if (sym->ts.type == BT_CHARACTER) | |
1308 | { | |
617125a6 | 1309 | /* For a deferred dummy, make a new string length variable. */ |
1310 | if (sym->ts.deferred | |
1311 | && | |
1312 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1313 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1314 | ||
8b9eb27e | 1315 | if (sym->ts.deferred && fun_or_res |
617125a6 | 1316 | && sym->ts.u.cl->passed_length == NULL |
1317 | && sym->ts.u.cl->backend_decl) | |
1318 | { | |
1319 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
1320 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1321 | } | |
1322 | ||
eeebe20b | 1323 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1324 | length = gfc_create_string_length (sym); |
1325 | else | |
eeebe20b | 1326 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1327 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1328 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1329 | { |
d95efb59 | 1330 | /* Add the string length to the same context as the symbol. */ |
1331 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1332 | gfc_add_decl_to_function (length); | |
1333 | else | |
1334 | gfc_add_decl_to_parent_function (length); | |
1335 | ||
1336 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1337 | DECL_CONTEXT (length)); | |
1338 | ||
d4163395 | 1339 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1340 | } |
4ee9c684 | 1341 | } |
1342 | ||
1343 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1344 | if ((sym->attr.dimension || sym->attr.codimension) |
1345 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1346 | { |
d95efb59 | 1347 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1348 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1349 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1350 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1351 | sym->backend_decl = decl; | |
4ee9c684 | 1352 | } |
1353 | ||
1354 | TREE_USED (sym->backend_decl) = 1; | |
c8f1568f | 1355 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1356 | { | |
1357 | gfc_add_assign_aux_vars (sym); | |
1358 | } | |
9579733e | 1359 | |
1360 | if (sym->attr.dimension | |
1361 | && DECL_LANG_SPECIFIC (sym->backend_decl) | |
1362 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1363 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1364 | gfc_nonlocal_dummy_array_decl (sym); | |
1365 | ||
fd23cc08 | 1366 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1367 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1368 | ||
1369 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1370 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1371 | return sym->backend_decl; | |
4ee9c684 | 1372 | } |
1373 | ||
1374 | if (sym->backend_decl) | |
1375 | return sym->backend_decl; | |
1376 | ||
a25debd0 | 1377 | /* Special case for array-valued named constants from intrinsic |
1378 | procedures; those are inlined. */ | |
1379 | if (sym->attr.use_assoc && sym->from_intmod | |
1380 | && sym->attr.flavor == FL_PARAMETER) | |
1381 | intrinsic_array_parameter = true; | |
1382 | ||
044bbd71 | 1383 | /* If use associated compilation, use the module |
094bca96 | 1384 | declaration. */ |
044bbd71 | 1385 | if ((sym->attr.flavor == FL_VARIABLE |
1386 | || sym->attr.flavor == FL_PARAMETER) | |
1387 | && sym->attr.use_assoc | |
1388 | && !intrinsic_array_parameter | |
1389 | && sym->module | |
1390 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1391 | { |
1392 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1393 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1394 | return sym->backend_decl; | |
1395 | } | |
7ea64434 | 1396 | |
4ee9c684 | 1397 | if (sym->attr.flavor == FL_PROCEDURE) |
1398 | { | |
77d080ca | 1399 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1400 | procedure pointers and procptr initialization targets. */ |
77d080ca | 1401 | if (sym->attr.use_assoc || sym->attr.intrinsic |
1402 | || sym->attr.if_source != IFSRC_DECL) | |
802532b9 | 1403 | { |
1404 | decl = gfc_get_extern_function_decl (sym); | |
1405 | gfc_set_decl_location (decl, &sym->declared_at); | |
1406 | } | |
1407 | else | |
1408 | { | |
1409 | if (!sym->backend_decl) | |
1410 | build_function_decl (sym, false); | |
1411 | decl = sym->backend_decl; | |
1412 | } | |
4ee9c684 | 1413 | return decl; |
1414 | } | |
1415 | ||
1416 | if (sym->attr.intrinsic) | |
1417 | internal_error ("intrinsic variable which isn't a procedure"); | |
1418 | ||
1419 | /* Create string length decl first so that they can be used in the | |
1420 | type declaration. */ | |
1421 | if (sym->ts.type == BT_CHARACTER) | |
1422 | length = gfc_create_string_length (sym); | |
1423 | ||
1424 | /* Create the decl for the variable. */ | |
e60a6f7b | 1425 | decl = build_decl (sym->declared_at.lb->location, |
1426 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1427 | |
1236e28b | 1428 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1429 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1430 | decl_attributes (&decl, attributes, 0); | |
1431 | ||
f888a3fb | 1432 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1433 | This is done here rather than in gfc_finish_var_decl because it |
1434 | is different for string length variables. */ | |
4f0fae8e | 1435 | if (sym->module) |
df4d540f | 1436 | { |
1236e28b | 1437 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1438 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1439 | DECL_IGNORED_P (decl) = 1; |
1440 | } | |
4ee9c684 | 1441 | |
bc5663df | 1442 | if (sym->attr.select_type_temporary) |
1443 | { | |
1444 | DECL_ARTIFICIAL (decl) = 1; | |
1445 | DECL_IGNORED_P (decl) = 1; | |
1446 | } | |
1447 | ||
7a777e43 | 1448 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1449 | { |
1450 | /* Create variables to hold the non-constant bits of array info. */ | |
1451 | gfc_build_qualified_array (decl, sym); | |
1452 | ||
b3c3927c | 1453 | if (sym->attr.contiguous |
1454 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1455 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1456 | } | |
1457 | ||
0a96a7cc | 1458 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1459 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1460 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1461 | (CLASS_DATA (sym)->attr.dimension |
1462 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1463 | || (sym->ts.type == BT_DERIVED |
1464 | && (sym->ts.u.derived->attr.alloc_comp | |
1465 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1466 | && !sym->ns->proc_name->attr.is_main_program | |
1467 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1468 | /* This applies a derived type default initializer. */ |
1469 | || (sym->ts.type == BT_DERIVED | |
1470 | && sym->attr.save == SAVE_NONE | |
1471 | && !sym->attr.data | |
1472 | && !sym->attr.allocatable | |
1473 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1474 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1475 | gfc_defer_symbol_init (sym); |
2294b616 | 1476 | |
4ee9c684 | 1477 | gfc_finish_var_decl (decl, sym); |
1478 | ||
bda1f152 | 1479 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1480 | { |
4ee9c684 | 1481 | /* Character variables need special handling. */ |
1482 | gfc_allocate_lang_decl (decl); | |
1483 | ||
bda1f152 | 1484 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1485 | { |
4ee9c684 | 1486 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1487 | gcc_assert (!sym->value); |
4ee9c684 | 1488 | } |
4ee9c684 | 1489 | } |
1033248c | 1490 | else if (sym->attr.subref_array_pointer) |
1491 | { | |
1492 | /* We need the span for these beasts. */ | |
1493 | gfc_allocate_lang_decl (decl); | |
1494 | } | |
1495 | ||
1496 | if (sym->attr.subref_array_pointer) | |
1497 | { | |
1498 | tree span; | |
1499 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1500 | span = build_decl (input_location, |
1501 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1502 | gfc_array_index_type); |
1503 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1504 | TREE_STATIC (span) = TREE_STATIC (decl); |
1505 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1506 | |
1507 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1508 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1509 | } |
1510 | ||
fd23cc08 | 1511 | if (sym->ts.type == BT_CLASS) |
1512 | GFC_DECL_CLASS(decl) = 1; | |
1513 | ||
4ee9c684 | 1514 | sym->backend_decl = decl; |
1515 | ||
c8f1568f | 1516 | if (sym->attr.assign) |
21ebda4d | 1517 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1518 | |
cd2c99b8 | 1519 | if (intrinsic_array_parameter) |
1520 | { | |
1521 | TREE_STATIC (decl) = 1; | |
1522 | DECL_EXTERNAL (decl) = 0; | |
1523 | } | |
1524 | ||
1525 | if (TREE_STATIC (decl) | |
1526 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1527 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
1528 | || gfc_option.flag_max_stack_var_size == 0 | |
a961ca30 | 1529 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
0d3bb1de | 1530 | && (gfc_option.coarray != GFC_FCOARRAY_LIB |
1531 | || !sym->attr.codimension || sym->attr.allocatable)) | |
a545a8f8 | 1532 | { |
1533 | /* Add static initializer. For procedures, it is only needed if | |
1534 | SAVE is specified otherwise they need to be reinitialized | |
1535 | every time the procedure is entered. The TREE_STATIC is | |
1536 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1537 | |
bda1f152 | 1538 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1539 | TREE_TYPE (decl), sym->attr.dimension |
1540 | || (sym->attr.codimension | |
1541 | && sym->attr.allocatable), | |
1542 | sym->attr.pointer || sym->attr.allocatable | |
1543 | || sym->ts.type == BT_CLASS, | |
1544 | sym->attr.proc_pointer); | |
bda1f152 | 1545 | } |
1546 | ||
9579733e | 1547 | if (!TREE_STATIC (decl) |
1548 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1549 | && !sym->attr.pointer | |
1550 | && !sym->attr.allocatable | |
bc5663df | 1551 | && !sym->attr.proc_pointer |
1552 | && !sym->attr.select_type_temporary) | |
9579733e | 1553 | DECL_BY_REFERENCE (decl) = 1; |
1554 | ||
cf5f881f | 1555 | if (sym->attr.associate_var) |
1556 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1557 | ||
ebad7c3e | 1558 | if (sym->attr.vtab |
1559 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1560 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1561 | |
4ee9c684 | 1562 | return decl; |
1563 | } | |
1564 | ||
1565 | ||
dbe60343 | 1566 | /* Substitute a temporary variable in place of the real one. */ |
1567 | ||
1568 | void | |
1569 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1570 | { | |
1571 | save->attr = sym->attr; | |
1572 | save->decl = sym->backend_decl; | |
1573 | ||
1574 | gfc_clear_attr (&sym->attr); | |
1575 | sym->attr.referenced = 1; | |
1576 | sym->attr.flavor = FL_VARIABLE; | |
1577 | ||
1578 | sym->backend_decl = decl; | |
1579 | } | |
1580 | ||
1581 | ||
1582 | /* Restore the original variable. */ | |
1583 | ||
1584 | void | |
1585 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1586 | { | |
1587 | sym->attr = save->attr; | |
1588 | sym->backend_decl = save->decl; | |
1589 | } | |
1590 | ||
1591 | ||
cad0ddcf | 1592 | /* Declare a procedure pointer. */ |
1593 | ||
1594 | static tree | |
1595 | get_proc_pointer_decl (gfc_symbol *sym) | |
1596 | { | |
1597 | tree decl; | |
36b0a1b0 | 1598 | tree attributes; |
cad0ddcf | 1599 | |
1600 | decl = sym->backend_decl; | |
1601 | if (decl) | |
1602 | return decl; | |
1603 | ||
e60a6f7b | 1604 | decl = build_decl (input_location, |
1605 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1606 | build_pointer_type (gfc_get_function_type (sym))); |
1607 | ||
ea6f8461 | 1608 | if (sym->module) |
1609 | { | |
1610 | /* Apply name mangling. */ | |
1611 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1612 | if (sym->attr.use_assoc) | |
1613 | DECL_IGNORED_P (decl) = 1; | |
1614 | } | |
a90fe829 | 1615 | |
e72f979a | 1616 | if ((sym->ns->proc_name |
1617 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1618 | || sym->attr.contained) |
1619 | gfc_add_decl_to_function (decl); | |
cf269acc | 1620 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1621 | gfc_add_decl_to_parent_function (decl); |
1622 | ||
1623 | sym->backend_decl = decl; | |
1624 | ||
cf269acc | 1625 | /* If a variable is USE associated, it's always external. */ |
1626 | if (sym->attr.use_assoc) | |
1627 | { | |
1628 | DECL_EXTERNAL (decl) = 1; | |
1629 | TREE_PUBLIC (decl) = 1; | |
1630 | } | |
1631 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1632 | { | |
1633 | /* This is the declaration of a module variable. */ | |
1634 | TREE_PUBLIC (decl) = 1; | |
1635 | TREE_STATIC (decl) = 1; | |
1636 | } | |
1637 | ||
cad0ddcf | 1638 | if (!sym->attr.use_assoc |
1639 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1640 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1641 | TREE_STATIC (decl) = 1; | |
1642 | ||
1643 | if (TREE_STATIC (decl) && sym->value) | |
1644 | { | |
1645 | /* Add static initializer. */ | |
1646 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1647 | TREE_TYPE (decl), |
1648 | sym->attr.dimension, | |
1649 | false, true); | |
cad0ddcf | 1650 | } |
1651 | ||
8fb1768c | 1652 | /* Handle threadprivate procedure pointers. */ |
1653 | if (sym->attr.threadprivate | |
1654 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1655 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1656 | |
36b0a1b0 | 1657 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1658 | decl_attributes (&decl, attributes, 0); | |
1659 | ||
cad0ddcf | 1660 | return decl; |
1661 | } | |
1662 | ||
1663 | ||
4ee9c684 | 1664 | /* Get a basic decl for an external function. */ |
1665 | ||
1666 | tree | |
1667 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1668 | { | |
1669 | tree type; | |
1670 | tree fndecl; | |
36b0a1b0 | 1671 | tree attributes; |
4ee9c684 | 1672 | gfc_expr e; |
1673 | gfc_intrinsic_sym *isym; | |
1674 | gfc_expr argexpr; | |
17000b91 | 1675 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1676 | tree name; |
1677 | tree mangled_name; | |
83aeedb9 | 1678 | gfc_gsymbol *gsym; |
4ee9c684 | 1679 | |
1680 | if (sym->backend_decl) | |
1681 | return sym->backend_decl; | |
1682 | ||
1b716045 | 1683 | /* We should never be creating external decls for alternate entry points. |
1684 | The procedure may be an alternate entry point, but we don't want/need | |
1685 | to know that. */ | |
22d678e8 | 1686 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1687 | |
cad0ddcf | 1688 | if (sym->attr.proc_pointer) |
1689 | return get_proc_pointer_decl (sym); | |
1690 | ||
83aeedb9 | 1691 | /* See if this is an external procedure from the same file. If so, |
1692 | return the backend_decl. */ | |
da5c730d | 1693 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1694 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1695 | |
c8b913ab | 1696 | if (gsym && !gsym->defined) |
1697 | gsym = NULL; | |
1698 | ||
1699 | /* This can happen because of C binding. */ | |
1700 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1701 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1702 | goto module_sym; | |
1703 | ||
044bbd71 | 1704 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1705 | && !sym->backend_decl | |
1706 | && gsym && gsym->ns | |
1707 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1708 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1709 | { |
d896f9b3 | 1710 | if (!gsym->ns->proc_name->backend_decl) |
1711 | { | |
1712 | /* By construction, the external function cannot be | |
1713 | a contained procedure. */ | |
1714 | locus old_loc; | |
d896f9b3 | 1715 | |
4671339c | 1716 | gfc_save_backend_locus (&old_loc); |
9078126c | 1717 | push_cfun (NULL); |
d896f9b3 | 1718 | |
1719 | gfc_create_function_decl (gsym->ns, true); | |
1720 | ||
1721 | pop_cfun (); | |
4671339c | 1722 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1723 | } |
1724 | ||
83aeedb9 | 1725 | /* If the namespace has entries, the proc_name is the |
1726 | entry master. Find the entry and use its backend_decl. | |
1727 | otherwise, use the proc_name backend_decl. */ | |
1728 | if (gsym->ns->entries) | |
1729 | { | |
1730 | gfc_entry_list *entry = gsym->ns->entries; | |
1731 | ||
1732 | for (; entry; entry = entry->next) | |
1733 | { | |
1734 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1735 | { | |
1736 | sym->backend_decl = entry->sym->backend_decl; | |
1737 | break; | |
1738 | } | |
1739 | } | |
1740 | } | |
1741 | else | |
40c74b02 | 1742 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1743 | |
1744 | if (sym->backend_decl) | |
40c74b02 | 1745 | { |
1746 | /* Avoid problems of double deallocation of the backend declaration | |
1747 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1748 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1749 | sym->attr.use_assoc = 0; | |
1750 | ||
1751 | return sym->backend_decl; | |
1752 | } | |
83aeedb9 | 1753 | } |
1754 | ||
7ea64434 | 1755 | /* See if this is a module procedure from the same file. If so, |
1756 | return the backend_decl. */ | |
1757 | if (sym->module) | |
1758 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1759 | ||
c8b913ab | 1760 | module_sym: |
1761 | if (gsym && gsym->ns | |
1762 | && (gsym->type == GSYM_MODULE | |
1763 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 1764 | { |
1765 | gfc_symbol *s; | |
1766 | ||
1767 | s = NULL; | |
c8b913ab | 1768 | if (gsym->type == GSYM_MODULE) |
1769 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1770 | else | |
1771 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
1772 | ||
7ea64434 | 1773 | if (s && s->backend_decl) |
1774 | { | |
85ec2f13 | 1775 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1776 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1777 | true); | |
1778 | else if (sym->ts.type == BT_CHARACTER) | |
1779 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1780 | sym->backend_decl = s->backend_decl; |
1781 | return sym->backend_decl; | |
1782 | } | |
1783 | } | |
1784 | ||
4ee9c684 | 1785 | if (sym->attr.intrinsic) |
1786 | { | |
1787 | /* Call the resolution function to get the actual name. This is | |
1788 | a nasty hack which relies on the resolution functions only looking | |
1789 | at the first argument. We pass NULL for the second argument | |
1790 | otherwise things like AINT get confused. */ | |
1791 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1792 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1793 | |
1794 | memset (&e, 0, sizeof (e)); | |
1795 | e.expr_type = EXPR_FUNCTION; | |
1796 | ||
1797 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1798 | gcc_assert (isym->formal); |
4ee9c684 | 1799 | argexpr.ts = isym->formal->ts; |
1800 | ||
1801 | if (isym->formal->next == NULL) | |
1802 | isym->resolve.f1 (&e, &argexpr); | |
1803 | else | |
1804 | { | |
37e0271a | 1805 | if (isym->formal->next->next == NULL) |
1806 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1807 | else | |
1808 | { | |
7fe55cc9 | 1809 | if (isym->formal->next->next->next == NULL) |
1810 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1811 | else | |
1812 | { | |
1813 | /* All specific intrinsics take less than 5 arguments. */ | |
1814 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1815 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1816 | } | |
37e0271a | 1817 | } |
4ee9c684 | 1818 | } |
bdaed7d2 | 1819 | |
1820 | if (gfc_option.flag_f2c | |
1821 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) | |
1822 | || e.ts.type == BT_COMPLEX)) | |
1823 | { | |
1824 | /* Specific which needs a different implementation if f2c | |
1825 | calling conventions are used. */ | |
17000b91 | 1826 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 1827 | } |
1828 | else | |
17000b91 | 1829 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 1830 | |
4ee9c684 | 1831 | name = get_identifier (s); |
1832 | mangled_name = name; | |
1833 | } | |
1834 | else | |
1835 | { | |
1836 | name = gfc_sym_identifier (sym); | |
1837 | mangled_name = gfc_sym_mangled_function_id (sym); | |
1838 | } | |
1839 | ||
1840 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1841 | fndecl = build_decl (input_location, |
1842 | FUNCTION_DECL, name, type); | |
4ee9c684 | 1843 | |
e27454ee | 1844 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1845 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1846 | the opposite of declaring a function as static in C). */ |
e27454ee | 1847 | DECL_EXTERNAL (fndecl) = 1; |
1848 | TREE_PUBLIC (fndecl) = 1; | |
1849 | ||
1236e28b | 1850 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1851 | decl_attributes (&fndecl, attributes, 0); | |
1852 | ||
1853 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 1854 | |
1855 | /* Set the context of this decl. */ | |
1856 | if (0 && sym->ns && sym->ns->proc_name) | |
1857 | { | |
1858 | /* TODO: Add external decls to the appropriate scope. */ | |
1859 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
1860 | } | |
1861 | else | |
1862 | { | |
f888a3fb | 1863 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 1864 | DECL_CONTEXT (fndecl) = NULL_TREE; |
1865 | } | |
1866 | ||
4ee9c684 | 1867 | /* Set attributes for PURE functions. A call to PURE function in the |
1868 | Fortran 95 sense is both pure and without side effects in the C | |
1869 | sense. */ | |
bead0399 | 1870 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 1871 | { |
4d4b9f0e | 1872 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 1873 | DECL_PURE_P (fndecl) = 1; |
be393645 | 1874 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
1875 | parameters and don't use alternate returns (is this | |
1876 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 1877 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 1878 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 1879 | } |
1880 | ||
6e27d773 | 1881 | /* Mark non-returning functions. */ |
1882 | if (sym->attr.noreturn) | |
1883 | TREE_THIS_VOLATILE(fndecl) = 1; | |
1884 | ||
4ee9c684 | 1885 | sym->backend_decl = fndecl; |
1886 | ||
1887 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
1888 | pushdecl_top_level (fndecl); | |
1889 | ||
15b28553 | 1890 | if (sym->formal_ns |
1891 | && sym->formal_ns->proc_name == sym | |
1892 | && sym->formal_ns->omp_declare_simd) | |
1893 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
1894 | ||
4ee9c684 | 1895 | return fndecl; |
1896 | } | |
1897 | ||
1898 | ||
1899 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 1900 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
1901 | a master function with alternate entry points. */ | |
4ee9c684 | 1902 | |
1b716045 | 1903 | static void |
d896f9b3 | 1904 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 1905 | { |
36b0a1b0 | 1906 | tree fndecl, type, attributes; |
4ee9c684 | 1907 | symbol_attribute attr; |
1b716045 | 1908 | tree result_decl; |
4ee9c684 | 1909 | gfc_formal_arglist *f; |
1910 | ||
22d678e8 | 1911 | gcc_assert (!sym->attr.external); |
4ee9c684 | 1912 | |
802532b9 | 1913 | if (sym->backend_decl) |
1914 | return; | |
1915 | ||
b31f705b | 1916 | /* Set the line and filename. sym->declared_at seems to point to the |
1917 | last statement for subroutines, but it'll do for now. */ | |
1918 | gfc_set_backend_locus (&sym->declared_at); | |
1919 | ||
4ee9c684 | 1920 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 1921 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 1922 | || DECL_FILE_SCOPE_P (current_function_decl) |
1923 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
1924 | == NAMESPACE_DECL)); | |
4ee9c684 | 1925 | |
1926 | type = gfc_get_function_type (sym); | |
e60a6f7b | 1927 | fndecl = build_decl (input_location, |
1928 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 1929 | |
1236e28b | 1930 | attr = sym->attr; |
1931 | ||
e27454ee | 1932 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
1933 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 1934 | the opposite of declaring a function as static in C). */ |
e27454ee | 1935 | DECL_EXTERNAL (fndecl) = 0; |
1936 | ||
7d6b5754 | 1937 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
1938 | && (sym->ns->default_access == ACCESS_PRIVATE | |
1939 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
1940 | && gfc_option.flag_module_private))) | |
1941 | sym->attr.access = ACCESS_PRIVATE; | |
1942 | ||
e27454ee | 1943 | if (!current_function_decl |
c5cb468c | 1944 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 1945 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
1946 | || sym->attr.public_used)) | |
e27454ee | 1947 | TREE_PUBLIC (fndecl) = 1; |
1948 | ||
9e45357a | 1949 | if (sym->attr.referenced || sym->attr.entry_master) |
1950 | TREE_USED (fndecl) = 1; | |
1951 | ||
1236e28b | 1952 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
1953 | decl_attributes (&fndecl, attributes, 0); | |
1954 | ||
4ee9c684 | 1955 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 1956 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 1957 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 1958 | result_decl = NULL_TREE; |
1959 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
1960 | if (attr.function) | |
1961 | { | |
1962 | if (gfc_return_by_reference (sym)) | |
1963 | type = void_type_node; | |
1964 | else | |
1965 | { | |
1966 | if (sym->result != sym) | |
1967 | result_decl = gfc_sym_identifier (sym->result); | |
1968 | ||
1969 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
1970 | } | |
1971 | } | |
1972 | else | |
1973 | { | |
1974 | /* Look for alternate return placeholders. */ | |
1975 | int has_alternate_returns = 0; | |
6777213b | 1976 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 1977 | { |
1978 | if (f->sym == NULL) | |
1979 | { | |
1980 | has_alternate_returns = 1; | |
1981 | break; | |
1982 | } | |
1983 | } | |
1984 | ||
1985 | if (has_alternate_returns) | |
1986 | type = integer_type_node; | |
1987 | else | |
1988 | type = void_type_node; | |
1989 | } | |
1990 | ||
e60a6f7b | 1991 | result_decl = build_decl (input_location, |
1992 | RESULT_DECL, result_decl, type); | |
540edea7 | 1993 | DECL_ARTIFICIAL (result_decl) = 1; |
1994 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 1995 | DECL_CONTEXT (result_decl) = fndecl; |
1996 | DECL_RESULT (fndecl) = result_decl; | |
1997 | ||
1998 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 1999 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2000 | |
4ee9c684 | 2001 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2002 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2003 | |
f888a3fb | 2004 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2005 | Fortran 95 sense is both pure and without side effects in the C |
2006 | sense. */ | |
bead0399 | 2007 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2008 | { |
be393645 | 2009 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2010 | including an alternate return. In that case it can also be |
231e961a | 2011 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2012 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2013 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2014 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2015 | } | |
2016 | ||
36b0a1b0 | 2017 | |
4ee9c684 | 2018 | /* Layout the function declaration and put it in the binding level |
2019 | of the current function. */ | |
d896f9b3 | 2020 | |
4c197fd0 | 2021 | if (global) |
d896f9b3 | 2022 | pushdecl_top_level (fndecl); |
2023 | else | |
2024 | pushdecl (fndecl); | |
1b716045 | 2025 | |
16a40513 | 2026 | /* Perform name mangling if this is a top level or module procedure. */ |
2027 | if (current_function_decl == NULL_TREE) | |
2028 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2029 | ||
1b716045 | 2030 | sym->backend_decl = fndecl; |
2031 | } | |
2032 | ||
2033 | ||
2034 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2035 | ||
2036 | static void | |
2037 | create_function_arglist (gfc_symbol * sym) | |
2038 | { | |
2039 | tree fndecl; | |
2040 | gfc_formal_arglist *f; | |
d4163395 | 2041 | tree typelist, hidden_typelist; |
2042 | tree arglist, hidden_arglist; | |
1b716045 | 2043 | tree type; |
2044 | tree parm; | |
2045 | ||
2046 | fndecl = sym->backend_decl; | |
2047 | ||
e4b2c26c | 2048 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2049 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2050 | arglist = NULL_TREE; |
d4163395 | 2051 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2052 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2053 | |
2054 | if (sym->attr.entry_master) | |
2055 | { | |
2056 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2057 | parm = build_decl (input_location, |
2058 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2059 | |
1b716045 | 2060 | DECL_CONTEXT (parm) = fndecl; |
2061 | DECL_ARG_TYPE (parm) = type; | |
2062 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2063 | gfc_finish_decl (parm); |
d95efb59 | 2064 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2065 | |
2066 | arglist = chainon (arglist, parm); | |
2067 | typelist = TREE_CHAIN (typelist); | |
2068 | } | |
2069 | ||
e4b2c26c | 2070 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2071 | { |
d4163395 | 2072 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2073 | |
e4b2c26c | 2074 | if (sym->ts.type == BT_CHARACTER) |
2075 | { | |
e4b2c26c | 2076 | /* Length of character result. */ |
d4163395 | 2077 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2078 | |
e60a6f7b | 2079 | length = build_decl (input_location, |
2080 | PARM_DECL, | |
e4b2c26c | 2081 | get_identifier (".__result"), |
d4163395 | 2082 | len_type); |
eeebe20b | 2083 | if (!sym->ts.u.cl->length) |
e4b2c26c | 2084 | { |
eeebe20b | 2085 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2086 | TREE_USED (length) = 1; |
4ee9c684 | 2087 | } |
22d678e8 | 2088 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2089 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2090 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2091 | TREE_READONLY (length) = 1; |
b5b40b3f | 2092 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2093 | gfc_finish_decl (length); |
eeebe20b | 2094 | if (sym->ts.u.cl->backend_decl == NULL |
2095 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2096 | { |
2097 | gfc_symbol *arg; | |
2098 | tree backend_decl; | |
4ee9c684 | 2099 | |
eeebe20b | 2100 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2101 | { |
e60a6f7b | 2102 | tree len = build_decl (input_location, |
2103 | VAR_DECL, | |
d4163395 | 2104 | get_identifier ("..__result"), |
2105 | gfc_charlen_type_node); | |
2106 | DECL_ARTIFICIAL (len) = 1; | |
2107 | TREE_USED (len) = 1; | |
eeebe20b | 2108 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2109 | } |
4ee9c684 | 2110 | |
d4163395 | 2111 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2112 | arg = sym->result ? sym->result : sym; | |
2113 | backend_decl = arg->backend_decl; | |
2114 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2115 | type. */ | |
2116 | arg->backend_decl = NULL; | |
2117 | type = gfc_sym_type (arg); | |
2118 | arg->backend_decl = backend_decl; | |
2119 | type = build_reference_type (type); | |
2120 | } | |
2121 | } | |
4ee9c684 | 2122 | |
e60a6f7b | 2123 | parm = build_decl (input_location, |
2124 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2125 | |
d4163395 | 2126 | DECL_CONTEXT (parm) = fndecl; |
2127 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2128 | TREE_READONLY (parm) = 1; | |
2129 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2130 | gfc_finish_decl (parm); |
4ee9c684 | 2131 | |
d4163395 | 2132 | arglist = chainon (arglist, parm); |
2133 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2134 | |
d4163395 | 2135 | if (sym->ts.type == BT_CHARACTER) |
2136 | { | |
2137 | gfc_allocate_lang_decl (parm); | |
2138 | arglist = chainon (arglist, length); | |
e4b2c26c | 2139 | typelist = TREE_CHAIN (typelist); |
2140 | } | |
2141 | } | |
4ee9c684 | 2142 | |
d4163395 | 2143 | hidden_typelist = typelist; |
6777213b | 2144 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2145 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2146 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2147 | ||
6777213b | 2148 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2149 | { |
2150 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2151 | |
e4b2c26c | 2152 | /* Ignore alternate returns. */ |
2153 | if (f->sym == NULL) | |
2154 | continue; | |
4ee9c684 | 2155 | |
e4b2c26c | 2156 | type = TREE_VALUE (typelist); |
4ee9c684 | 2157 | |
296db1d1 | 2158 | if (f->sym->ts.type == BT_CHARACTER |
2159 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2160 | { |
2161 | tree len_type = TREE_VALUE (hidden_typelist); | |
2162 | tree length = NULL_TREE; | |
617125a6 | 2163 | if (!f->sym->ts.deferred) |
2164 | gcc_assert (len_type == gfc_charlen_type_node); | |
2165 | else | |
2166 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2167 | |
2168 | strcpy (&name[1], f->sym->name); | |
2169 | name[0] = '_'; | |
e60a6f7b | 2170 | length = build_decl (input_location, |
2171 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2172 | |
d4163395 | 2173 | hidden_arglist = chainon (hidden_arglist, length); |
2174 | DECL_CONTEXT (length) = fndecl; | |
2175 | DECL_ARTIFICIAL (length) = 1; | |
2176 | DECL_ARG_TYPE (length) = len_type; | |
2177 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2178 | gfc_finish_decl (length); |
4ee9c684 | 2179 | |
a4abf8a0 | 2180 | /* Remember the passed value. */ |
a90fe829 | 2181 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2182 | { |
2183 | /* This can happen if the same type is used for multiple | |
2184 | arguments. We need to copy cl as otherwise | |
2185 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2186 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2187 | } |
eeebe20b | 2188 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2189 | |
d4163395 | 2190 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2191 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2192 | { |
d4163395 | 2193 | TREE_USED (length) = 1; |
eeebe20b | 2194 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2195 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2196 | } |
2197 | ||
2198 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2199 | ||
eeebe20b | 2200 | if (f->sym->ts.u.cl->backend_decl == NULL |
2201 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2202 | { |
eeebe20b | 2203 | if (f->sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2204 | gfc_create_string_length (f->sym); |
2205 | ||
2206 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2207 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2208 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2209 | else | |
2210 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2211 | } |
4ee9c684 | 2212 | } |
532c2d79 | 2213 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2214 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2215 | Thus, we will use a hidden argument in that case. */ |
2216 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2217 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
532c2d79 | 2218 | && f->sym->ts.type != BT_DERIVED) |
2219 | { | |
2220 | tree tmp; | |
2221 | strcpy (&name[1], f->sym->name); | |
2222 | name[0] = '_'; | |
2223 | tmp = build_decl (input_location, | |
2224 | PARM_DECL, get_identifier (name), | |
2225 | boolean_type_node); | |
2226 | ||
2227 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2228 | DECL_CONTEXT (tmp) = fndecl; | |
2229 | DECL_ARTIFICIAL (tmp) = 1; | |
2230 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2231 | TREE_READONLY (tmp) = 1; | |
2232 | gfc_finish_decl (tmp); | |
2233 | } | |
4ee9c684 | 2234 | |
d4163395 | 2235 | /* For non-constant length array arguments, make sure they use |
2236 | a different type node from TYPE_ARG_TYPES type. */ | |
2237 | if (f->sym->attr.dimension | |
2238 | && type == TREE_VALUE (typelist) | |
2239 | && TREE_CODE (type) == POINTER_TYPE | |
2240 | && GFC_ARRAY_TYPE_P (type) | |
2241 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2242 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2243 | { | |
2244 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2245 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2246 | else | |
2247 | type = gfc_sym_type (f->sym); | |
2248 | } | |
2249 | ||
cad0ddcf | 2250 | if (f->sym->attr.proc_pointer) |
2251 | type = build_pointer_type (type); | |
2252 | ||
2364aa60 | 2253 | if (f->sym->attr.volatile_) |
2254 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2255 | ||
69b1505f | 2256 | /* Build the argument declaration. */ |
e60a6f7b | 2257 | parm = build_decl (input_location, |
2258 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2259 | |
2364aa60 | 2260 | if (f->sym->attr.volatile_) |
2261 | { | |
2262 | TREE_THIS_VOLATILE (parm) = 1; | |
2263 | TREE_SIDE_EFFECTS (parm) = 1; | |
2264 | } | |
2265 | ||
d4163395 | 2266 | /* Fill in arg stuff. */ |
2267 | DECL_CONTEXT (parm) = fndecl; | |
2268 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2269 | /* All implementation args are read-only. */ | |
2270 | TREE_READONLY (parm) = 1; | |
98923a84 | 2271 | if (POINTER_TYPE_P (type) |
2272 | && (!f->sym->attr.proc_pointer | |
2273 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2274 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2275 | |
b9c7fce7 | 2276 | gfc_finish_decl (parm); |
cf5f881f | 2277 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2278 | |
2279 | f->sym->backend_decl = parm; | |
2280 | ||
7dce33fe | 2281 | /* Coarrays which are descriptorless or assumed-shape pass with |
2282 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
d44f2f7c | 2283 | if (gfc_option.coarray == GFC_FCOARRAY_LIB |
2284 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension | |
2285 | && !f->sym->attr.allocatable) | |
2286 | || (f->sym->ts.type == BT_CLASS | |
2287 | && CLASS_DATA (f->sym)->attr.codimension | |
2288 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2289 | { |
2290 | tree caf_type; | |
2291 | tree token; | |
2292 | tree offset; | |
2293 | ||
2294 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2295 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2296 | caf_type = f->sym->ts.type == BT_CLASS |
2297 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2298 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2299 | |
85c94a64 | 2300 | token = build_decl (input_location, PARM_DECL, |
2301 | create_tmp_var_name ("caf_token"), | |
2302 | build_qualified_type (pvoid_type_node, | |
2303 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2304 | if ((f->sym->ts.type != BT_CLASS |
2305 | && f->sym->as->type != AS_DEFERRED) | |
2306 | || (f->sym->ts.type == BT_CLASS | |
2307 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2308 | { |
2309 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2310 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2311 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2312 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2313 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2314 | } | |
2315 | else | |
2316 | { | |
2317 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2318 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2319 | } | |
a90fe829 | 2320 | |
85c94a64 | 2321 | DECL_CONTEXT (token) = fndecl; |
2322 | DECL_ARTIFICIAL (token) = 1; | |
2323 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2324 | TREE_READONLY (token) = 1; | |
2325 | hidden_arglist = chainon (hidden_arglist, token); | |
2326 | gfc_finish_decl (token); | |
2327 | ||
85c94a64 | 2328 | offset = build_decl (input_location, PARM_DECL, |
2329 | create_tmp_var_name ("caf_offset"), | |
2330 | gfc_array_index_type); | |
2331 | ||
d44f2f7c | 2332 | if ((f->sym->ts.type != BT_CLASS |
2333 | && f->sym->as->type != AS_DEFERRED) | |
2334 | || (f->sym->ts.type == BT_CLASS | |
2335 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2336 | { |
2337 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2338 | == NULL_TREE); | |
2339 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2340 | } | |
2341 | else | |
2342 | { | |
2343 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2344 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2345 | } | |
85c94a64 | 2346 | DECL_CONTEXT (offset) = fndecl; |
2347 | DECL_ARTIFICIAL (offset) = 1; | |
2348 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2349 | TREE_READONLY (offset) = 1; | |
2350 | hidden_arglist = chainon (hidden_arglist, offset); | |
2351 | gfc_finish_decl (offset); | |
2352 | } | |
2353 | ||
d4163395 | 2354 | arglist = chainon (arglist, parm); |
e4b2c26c | 2355 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2356 | } |
e4b2c26c | 2357 | |
465e4a95 | 2358 | /* Add the hidden string length parameters, unless the procedure |
2359 | is bind(C). */ | |
2360 | if (!sym->attr.is_bind_c) | |
2361 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2362 | |
ebe27ea2 | 2363 | gcc_assert (hidden_typelist == NULL_TREE |
2364 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2365 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2366 | } |
e4b2c26c | 2367 | |
1b716045 | 2368 | /* Do the setup necessary before generating the body of a function. */ |
2369 | ||
2370 | static void | |
2371 | trans_function_start (gfc_symbol * sym) | |
2372 | { | |
2373 | tree fndecl; | |
2374 | ||
2375 | fndecl = sym->backend_decl; | |
2376 | ||
f888a3fb | 2377 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2378 | current_function_decl = fndecl; |
2379 | ||
f888a3fb | 2380 | /* Let the world know what we're about to do. */ |
1b716045 | 2381 | announce_function (fndecl); |
2382 | ||
16a40513 | 2383 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2384 | { |
f888a3fb | 2385 | /* Create RTL for function declaration. */ |
1b716045 | 2386 | rest_of_decl_compilation (fndecl, 1, 0); |
2387 | } | |
2388 | ||
f888a3fb | 2389 | /* Create RTL for function definition. */ |
1b716045 | 2390 | make_decl_rtl (fndecl); |
2391 | ||
00cf115c | 2392 | allocate_struct_function (fndecl, false); |
1b716045 | 2393 | |
f888a3fb | 2394 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2395 | pushlevel (); |
1b716045 | 2396 | } |
2397 | ||
2398 | /* Create thunks for alternate entry points. */ | |
2399 | ||
2400 | static void | |
d896f9b3 | 2401 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2402 | { |
2403 | gfc_formal_arglist *formal; | |
2404 | gfc_formal_arglist *thunk_formal; | |
2405 | gfc_entry_list *el; | |
2406 | gfc_symbol *thunk_sym; | |
2407 | stmtblock_t body; | |
2408 | tree thunk_fndecl; | |
1b716045 | 2409 | tree tmp; |
b31f705b | 2410 | locus old_loc; |
1b716045 | 2411 | |
2412 | /* This should always be a toplevel function. */ | |
22d678e8 | 2413 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2414 | |
4671339c | 2415 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2416 | for (el = ns->entries; el; el = el->next) |
2417 | { | |
f1f41a6c | 2418 | vec<tree, va_gc> *args = NULL; |
2419 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2420 | |
1b716045 | 2421 | thunk_sym = el->sym; |
a90fe829 | 2422 | |
d896f9b3 | 2423 | build_function_decl (thunk_sym, global); |
1b716045 | 2424 | create_function_arglist (thunk_sym); |
2425 | ||
2426 | trans_function_start (thunk_sym); | |
2427 | ||
2428 | thunk_fndecl = thunk_sym->backend_decl; | |
2429 | ||
e5004242 | 2430 | gfc_init_block (&body); |
1b716045 | 2431 | |
f888a3fb | 2432 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2433 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2434 | vec_safe_push (args, tmp); |
1b716045 | 2435 | |
c6871095 | 2436 | if (thunk_sym->attr.function) |
2437 | { | |
2438 | if (gfc_return_by_reference (ns->proc_name)) | |
2439 | { | |
2440 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2441 | vec_safe_push (args, ref); |
c6871095 | 2442 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2443 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2444 | } |
2445 | } | |
2446 | ||
6777213b | 2447 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2448 | formal = formal->next) | |
1b716045 | 2449 | { |
c6871095 | 2450 | /* Ignore alternate returns. */ |
2451 | if (formal->sym == NULL) | |
2452 | continue; | |
2453 | ||
1b716045 | 2454 | /* We don't have a clever way of identifying arguments, so resort to |
2455 | a brute-force search. */ | |
6777213b | 2456 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2457 | thunk_formal; |
2458 | thunk_formal = thunk_formal->next) | |
2459 | { | |
2460 | if (thunk_formal->sym == formal->sym) | |
2461 | break; | |
2462 | } | |
2463 | ||
2464 | if (thunk_formal) | |
2465 | { | |
2466 | /* Pass the argument. */ | |
d95efb59 | 2467 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2468 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2469 | if (formal->sym->ts.type == BT_CHARACTER) |
2470 | { | |
eeebe20b | 2471 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2472 | vec_safe_push (string_args, tmp); |
1b716045 | 2473 | } |
2474 | } | |
2475 | else | |
2476 | { | |
2477 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2478 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2479 | if (formal->sym->ts.type == BT_CHARACTER) |
2480 | { | |
7d3075f6 | 2481 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2482 | vec_safe_push (string_args, tmp); |
1b716045 | 2483 | } |
2484 | } | |
2485 | } | |
2486 | ||
2487 | /* Call the master function. */ | |
f1f41a6c | 2488 | vec_safe_splice (args, string_args); |
1b716045 | 2489 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2490 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2491 | if (ns->proc_name->attr.mixed_entry_master) |
2492 | { | |
2493 | tree union_decl, field; | |
2494 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2495 | ||
e60a6f7b | 2496 | union_decl = build_decl (input_location, |
2497 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2498 | TREE_TYPE (master_type)); |
2499 | DECL_ARTIFICIAL (union_decl) = 1; | |
2500 | DECL_EXTERNAL (union_decl) = 0; | |
2501 | TREE_PUBLIC (union_decl) = 0; | |
2502 | TREE_USED (union_decl) = 1; | |
2503 | layout_decl (union_decl, 0); | |
2504 | pushdecl (union_decl); | |
2505 | ||
2506 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2507 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2508 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2509 | gfc_add_expr_to_block (&body, tmp); |
2510 | ||
2511 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2512 | field; field = DECL_CHAIN (field)) |
c6871095 | 2513 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2514 | thunk_sym->result->name) == 0) | |
2515 | break; | |
2516 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2517 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2518 | TREE_TYPE (field), union_decl, field, | |
2519 | NULL_TREE); | |
a90fe829 | 2520 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2521 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2522 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2523 | tmp = build1_v (RETURN_EXPR, tmp); |
2524 | } | |
2525 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2526 | != void_type_node) | |
2527 | { | |
fd779e1d | 2528 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2529 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2530 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2531 | tmp = build1_v (RETURN_EXPR, tmp); |
2532 | } | |
1b716045 | 2533 | gfc_add_expr_to_block (&body, tmp); |
2534 | ||
2535 | /* Finish off this function and send it for code generation. */ | |
2536 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2537 | tmp = getdecls (); |
cde2be84 | 2538 | poplevel (1, 1); |
1b716045 | 2539 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2540 | DECL_SAVED_TREE (thunk_fndecl) |
2541 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2542 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2543 | |
2544 | /* Output the GENERIC tree. */ | |
2545 | dump_function (TDI_original, thunk_fndecl); | |
2546 | ||
2547 | /* Store the end of the function, so that we get good line number | |
2548 | info for the epilogue. */ | |
2549 | cfun->function_end_locus = input_location; | |
2550 | ||
2551 | /* We're leaving the context of this function, so zap cfun. | |
2552 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2553 | tree_rest_of_compilation. */ | |
87d4aa85 | 2554 | set_cfun (NULL); |
1b716045 | 2555 | |
2556 | current_function_decl = NULL_TREE; | |
2557 | ||
bb982f66 | 2558 | cgraph_finalize_function (thunk_fndecl, true); |
1b716045 | 2559 | |
2560 | /* We share the symbols in the formal argument list with other entry | |
2561 | points and the master function. Clear them so that they are | |
2562 | recreated for each function. */ | |
6777213b | 2563 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2564 | formal = formal->next) | |
c6871095 | 2565 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2566 | { | |
2567 | formal->sym->backend_decl = NULL_TREE; | |
2568 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2569 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2570 | } |
2571 | ||
2572 | if (thunk_sym->attr.function) | |
1b716045 | 2573 | { |
c6871095 | 2574 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2575 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2576 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2577 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2578 | } |
2579 | } | |
b31f705b | 2580 | |
4671339c | 2581 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2582 | } |
2583 | ||
2584 | ||
2585 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2586 | points. If global is true, generate the function in the global binding |
2587 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2588 | |
2589 | void | |
d896f9b3 | 2590 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2591 | { |
2592 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2593 | build_function_decl (ns->proc_name, global); |
1b716045 | 2594 | |
f888a3fb | 2595 | /* Compile the entry thunks. */ |
1b716045 | 2596 | if (ns->entries) |
d896f9b3 | 2597 | build_entry_thunks (ns, global); |
1b716045 | 2598 | |
2599 | /* Now create the read argument list. */ | |
2600 | create_function_arglist (ns->proc_name); | |
15b28553 | 2601 | |
2602 | if (ns->omp_declare_simd) | |
2603 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2604 | } |
2605 | ||
c750cc52 | 2606 | /* Return the decl used to hold the function return value. If |
3350e716 | 2607 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2608 | |
2609 | tree | |
c750cc52 | 2610 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2611 | { |
c750cc52 | 2612 | tree decl; |
2613 | tree length; | |
2614 | tree this_fake_result_decl; | |
2615 | tree this_function_decl; | |
4ee9c684 | 2616 | |
2617 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2618 | ||
c750cc52 | 2619 | if (parent_flag) |
2620 | { | |
2621 | this_fake_result_decl = parent_fake_result_decl; | |
2622 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2623 | } | |
2624 | else | |
2625 | { | |
2626 | this_fake_result_decl = current_fake_result_decl; | |
2627 | this_function_decl = current_function_decl; | |
2628 | } | |
2629 | ||
c6871095 | 2630 | if (sym |
c750cc52 | 2631 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2632 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2633 | && sym != sym->ns->proc_name) |
2634 | { | |
d4163395 | 2635 | tree t = NULL, var; |
c750cc52 | 2636 | if (this_fake_result_decl != NULL) |
2637 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2638 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2639 | break; | |
2640 | if (t) | |
2641 | return TREE_VALUE (t); | |
c750cc52 | 2642 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2643 | ||
2644 | if (parent_flag) | |
2645 | this_fake_result_decl = parent_fake_result_decl; | |
2646 | else | |
2647 | this_fake_result_decl = current_fake_result_decl; | |
2648 | ||
d4163395 | 2649 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2650 | { |
2651 | tree field; | |
2652 | ||
2653 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2654 | field; field = DECL_CHAIN (field)) |
c6871095 | 2655 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2656 | sym->name) == 0) | |
2657 | break; | |
2658 | ||
2659 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2660 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2661 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2662 | } |
c750cc52 | 2663 | |
2664 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2665 | if (parent_flag) | |
2666 | gfc_add_decl_to_parent_function (var); | |
2667 | else | |
2668 | gfc_add_decl_to_function (var); | |
2669 | ||
d4163395 | 2670 | SET_DECL_VALUE_EXPR (var, decl); |
2671 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2672 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2673 | |
2674 | TREE_CHAIN (this_fake_result_decl) | |
2675 | = tree_cons (get_identifier (sym->name), var, | |
2676 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2677 | return var; |
c6871095 | 2678 | } |
2679 | ||
c750cc52 | 2680 | if (this_fake_result_decl != NULL_TREE) |
2681 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2682 | |
2683 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2684 | sym is NULL. */ | |
2685 | if (!sym) | |
2686 | return NULL_TREE; | |
2687 | ||
d4163395 | 2688 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2689 | { |
eeebe20b | 2690 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2691 | length = gfc_create_string_length (sym); |
2692 | else | |
eeebe20b | 2693 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2694 | if (TREE_CODE (length) == VAR_DECL |
2695 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2696 | gfc_add_decl_to_function (length); |
4ee9c684 | 2697 | } |
2698 | ||
2699 | if (gfc_return_by_reference (sym)) | |
2700 | { | |
c750cc52 | 2701 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2702 | |
c750cc52 | 2703 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2704 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2705 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2706 | |
2707 | TREE_USED (decl) = 1; | |
2708 | if (sym->as) | |
2709 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2710 | } | |
2711 | else | |
2712 | { | |
2713 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2714 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2715 | |
3350e716 | 2716 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2717 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2718 | VAR_DECL, get_identifier (name), |
3350e716 | 2719 | gfc_sym_type (sym)); |
2720 | else | |
1e71b314 | 2721 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2722 | VAR_DECL, get_identifier (name), |
3350e716 | 2723 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2724 | DECL_ARTIFICIAL (decl) = 1; |
2725 | DECL_EXTERNAL (decl) = 0; | |
2726 | TREE_PUBLIC (decl) = 0; | |
2727 | TREE_USED (decl) = 1; | |
764f1175 | 2728 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2729 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2730 | |
2731 | layout_decl (decl, 0); | |
cf5f881f | 2732 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 2733 | |
c750cc52 | 2734 | if (parent_flag) |
2735 | gfc_add_decl_to_parent_function (decl); | |
2736 | else | |
2737 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2738 | } |
2739 | ||
c750cc52 | 2740 | if (parent_flag) |
2741 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2742 | else | |
2743 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2744 | |
2745 | return decl; | |
2746 | } | |
2747 | ||
2748 | ||
2749 | /* Builds a function decl. The remaining parameters are the types of the | |
2750 | function arguments. Negative nargs indicates a varargs function. */ | |
2751 | ||
8ce86007 | 2752 | static tree |
2753 | build_library_function_decl_1 (tree name, const char *spec, | |
2754 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2755 | { |
f1f41a6c | 2756 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2757 | tree fntype; |
2758 | tree fndecl; | |
4ee9c684 | 2759 | int n; |
2760 | ||
2761 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2762 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2763 | |
4ee9c684 | 2764 | /* Create a list of the argument types. */ |
f1f41a6c | 2765 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2766 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2767 | { |
5edc3af9 | 2768 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2769 | arglist->quick_push (argtype); |
4ee9c684 | 2770 | } |
2771 | ||
2772 | /* Build the function type and decl. */ | |
5edc3af9 | 2773 | if (nargs >= 0) |
2774 | fntype = build_function_type_vec (rettype, arglist); | |
2775 | else | |
2776 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2777 | if (spec) |
2778 | { | |
2779 | tree attr_args = build_tree_list (NULL_TREE, | |
2780 | build_string (strlen (spec), spec)); | |
2781 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2782 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2783 | fntype = build_type_attribute_variant (fntype, attrs); | |
2784 | } | |
e60a6f7b | 2785 | fndecl = build_decl (input_location, |
2786 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2787 | |
2788 | /* Mark this decl as external. */ | |
2789 | DECL_EXTERNAL (fndecl) = 1; | |
2790 | TREE_PUBLIC (fndecl) = 1; | |
2791 | ||
4ee9c684 | 2792 | pushdecl (fndecl); |
2793 | ||
b2c4af5e | 2794 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2795 | |
2796 | return fndecl; | |
2797 | } | |
2798 | ||
8ce86007 | 2799 | /* Builds a function decl. The remaining parameters are the types of the |
2800 | function arguments. Negative nargs indicates a varargs function. */ | |
2801 | ||
2802 | tree | |
2803 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2804 | { | |
2805 | tree ret; | |
2806 | va_list args; | |
2807 | va_start (args, nargs); | |
2808 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2809 | va_end (args); | |
2810 | return ret; | |
2811 | } | |
2812 | ||
2813 | /* Builds a function decl. The remaining parameters are the types of the | |
2814 | function arguments. Negative nargs indicates a varargs function. | |
2815 | The SPEC parameter specifies the function argument and return type | |
2816 | specification according to the fnspec function type attribute. */ | |
2817 | ||
4bf69bc3 | 2818 | tree |
8ce86007 | 2819 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
2820 | tree rettype, int nargs, ...) | |
2821 | { | |
2822 | tree ret; | |
2823 | va_list args; | |
2824 | va_start (args, nargs); | |
2825 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
2826 | va_end (args); | |
2827 | return ret; | |
2828 | } | |
2829 | ||
4ee9c684 | 2830 | static void |
2831 | gfc_build_intrinsic_function_decls (void) | |
2832 | { | |
90ba9145 | 2833 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 2834 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 2835 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 2836 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 2837 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 2838 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 2839 | tree pchar1_type_node = gfc_get_pchar_type (1); |
2840 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 2841 | |
4ee9c684 | 2842 | /* String functions. */ |
241ecdc7 | 2843 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
2844 | get_identifier (PREFIX("compare_string")), "..R.R", | |
2845 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
2846 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2847 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 2848 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 2849 | |
2850 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
2851 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
2852 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
2853 | gfc_charlen_type_node, pchar1_type_node, | |
2854 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 2855 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 2856 | |
2857 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
2858 | get_identifier (PREFIX("string_len_trim")), "..R", | |
2859 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 2860 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 2861 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 2862 | |
2863 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
2864 | get_identifier (PREFIX("string_index")), "..R.R.", | |
2865 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2866 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2867 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 2868 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 2869 | |
2870 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
2871 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
2872 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2873 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2874 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 2875 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 2876 | |
2877 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
2878 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
2879 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
2880 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 2881 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 2882 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 2883 | |
2884 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
2885 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
2886 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2887 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
2888 | pchar1_type_node); | |
2889 | ||
2890 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
2891 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
2892 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2893 | build_pointer_type (pchar1_type_node), integer_type_node, | |
2894 | integer_type_node); | |
2895 | ||
2896 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
2897 | get_identifier (PREFIX("adjustl")), ".W.R", | |
2898 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2899 | pchar1_type_node); | |
bc351485 | 2900 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 2901 | |
2902 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
2903 | get_identifier (PREFIX("adjustr")), ".W.R", | |
2904 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
2905 | pchar1_type_node); | |
bc351485 | 2906 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 2907 | |
2908 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
2909 | get_identifier (PREFIX("select_string")), ".R.R.", | |
2910 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2911 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 2912 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 2913 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 2914 | |
2915 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2916 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
2917 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
2918 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2919 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 2920 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 2921 | |
2922 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2923 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
2924 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
2925 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
2926 | pchar4_type_node); | |
bc351485 | 2927 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 2928 | |
2929 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2930 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
2931 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 2932 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 2933 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 2934 | |
2935 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
2936 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
2937 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2938 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2939 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 2940 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 2941 | |
2942 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
2943 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
2944 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2945 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2946 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 2947 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 2948 | |
2949 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
2950 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
2951 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
2952 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 2953 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 2954 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 2955 | |
2956 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
2957 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
2958 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
2959 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
2960 | pchar4_type_node); | |
2961 | ||
2962 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
2963 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
2964 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
2965 | build_pointer_type (pchar4_type_node), integer_type_node, | |
2966 | integer_type_node); | |
2967 | ||
2968 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
2969 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
2970 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2971 | pchar4_type_node); | |
bc351485 | 2972 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 2973 | |
2974 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
2975 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
2976 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
2977 | pchar4_type_node); | |
bc351485 | 2978 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 2979 | |
2980 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
2981 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
2982 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
2983 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 2984 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 2985 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 2986 | |
2987 | ||
2988 | /* Conversion between character kinds. */ | |
2989 | ||
241ecdc7 | 2990 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
2991 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
2992 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
2993 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 2994 | |
241ecdc7 | 2995 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
2996 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
2997 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
2998 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 2999 | |
40b806de | 3000 | /* Misc. functions. */ |
5fcc6ec2 | 3001 | |
241ecdc7 | 3002 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3003 | get_identifier (PREFIX("ttynam")), ".W", | |
3004 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3005 | integer_type_node); | |
3006 | ||
3007 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3008 | get_identifier (PREFIX("fdate")), ".W", | |
3009 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3010 | ||
3011 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3012 | get_identifier (PREFIX("ctime")), ".W", | |
3013 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3014 | gfc_int8_type_node); | |
3015 | ||
3016 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3017 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3018 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3019 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3020 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3021 | |
3022 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3023 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3024 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3025 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3026 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3027 | |
3028 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3029 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3030 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3031 | pvoid_type_node); | |
537824d1 | 3032 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3033 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3034 | |
72ce5390 | 3035 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3036 | get_identifier (PREFIX("system_clock_4")), | |
3037 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3038 | gfc_pint4_type_node); | |
3039 | ||
3040 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3041 | get_identifier (PREFIX("system_clock_8")), | |
3042 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3043 | gfc_pint8_type_node); | |
3044 | ||
4ee9c684 | 3045 | /* Power functions. */ |
76834664 | 3046 | { |
920e54ef | 3047 | tree ctype, rtype, itype, jtype; |
3048 | int rkind, ikind, jkind; | |
3049 | #define NIKINDS 3 | |
3050 | #define NRKINDS 4 | |
3051 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3052 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3053 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3054 | ||
3055 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3056 | { |
920e54ef | 3057 | itype = gfc_get_int_type (ikinds[ikind]); |
3058 | ||
3059 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3060 | { | |
3061 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3062 | if (itype && jtype) | |
3063 | { | |
3064 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3065 | ikinds[jkind]); | |
3066 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3067 | gfc_build_library_function_decl (get_identifier (name), | |
3068 | jtype, 2, jtype, itype); | |
2177d98b | 3069 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3070 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3071 | } |
3072 | } | |
3073 | ||
3074 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3075 | { |
920e54ef | 3076 | rtype = gfc_get_real_type (rkinds[rkind]); |
3077 | if (rtype && itype) | |
3078 | { | |
3079 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3080 | ikinds[ikind]); | |
3081 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3082 | gfc_build_library_function_decl (get_identifier (name), | |
3083 | rtype, 2, rtype, itype); | |
2177d98b | 3084 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3085 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3086 | } |
3087 | ||
3088 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3089 | if (ctype && itype) | |
3090 | { | |
3091 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3092 | ikinds[ikind]); | |
3093 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3094 | gfc_build_library_function_decl (get_identifier (name), | |
3095 | ctype, 2,ctype, itype); | |
2177d98b | 3096 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3097 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3098 | } |
76834664 | 3099 | } |
3100 | } | |
920e54ef | 3101 | #undef NIKINDS |
3102 | #undef NRKINDS | |
76834664 | 3103 | } |
3104 | ||
241ecdc7 | 3105 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3106 | get_identifier (PREFIX("ishftc4")), | |
3107 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3108 | gfc_int4_type_node); | |
bc351485 | 3109 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3110 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3111 | |
241ecdc7 | 3112 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3113 | get_identifier (PREFIX("ishftc8")), | |
3114 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3115 | gfc_int4_type_node); | |
bc351485 | 3116 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3117 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3118 | |
920e54ef | 3119 | if (gfc_int16_type_node) |
bc351485 | 3120 | { |
3121 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3122 | get_identifier (PREFIX("ishftc16")), |
3123 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3124 | gfc_int4_type_node); | |
bc351485 | 3125 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3126 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3127 | } | |
920e54ef | 3128 | |
4e8e57b0 | 3129 | /* BLAS functions. */ |
3130 | { | |
36c921b9 | 3131 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3132 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3133 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3134 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3135 | tree pz = build_pointer_type | |
3136 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3137 | ||
3138 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3139 | (get_identifier | |
3140 | (gfc_option.flag_underscoring ? "sgemm_" | |
3141 | : "sgemm"), | |
3142 | void_type_node, 15, pchar_type_node, | |
3143 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3144 | ps, pint, ps, ps, pint, integer_type_node, |
3145 | integer_type_node); | |
4e8e57b0 | 3146 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3147 | (get_identifier | |
3148 | (gfc_option.flag_underscoring ? "dgemm_" | |
3149 | : "dgemm"), | |
3150 | void_type_node, 15, pchar_type_node, | |
3151 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3152 | pd, pint, pd, pd, pint, integer_type_node, |
3153 | integer_type_node); | |
4e8e57b0 | 3154 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3155 | (get_identifier | |
3156 | (gfc_option.flag_underscoring ? "cgemm_" | |
3157 | : "cgemm"), | |
3158 | void_type_node, 15, pchar_type_node, | |
3159 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3160 | pc, pint, pc, pc, pint, integer_type_node, |
3161 | integer_type_node); | |
4e8e57b0 | 3162 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3163 | (get_identifier | |
3164 | (gfc_option.flag_underscoring ? "zgemm_" | |
3165 | : "zgemm"), | |
3166 | void_type_node, 15, pchar_type_node, | |
3167 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3168 | pz, pint, pz, pz, pint, integer_type_node, |
3169 | integer_type_node); | |
4e8e57b0 | 3170 | } |
3171 | ||
4ee9c684 | 3172 | /* Other functions. */ |
241ecdc7 | 3173 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3174 | get_identifier (PREFIX("size0")), ".R", | |
3175 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3176 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3177 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3178 | |
3179 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3180 | get_identifier (PREFIX("size1")), ".R", | |
3181 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3182 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3183 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3184 | |
3185 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3186 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3187 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3188 | } |
3189 | ||
3190 | ||
3191 | /* Make prototypes for runtime library functions. */ | |
3192 | ||
3193 | void | |
3194 | gfc_build_builtin_function_decls (void) | |
3195 | { | |
90ba9145 | 3196 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3197 | |
241ecdc7 | 3198 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3199 | get_identifier (PREFIX("stop_numeric")), | |
3200 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3201 | /* STOP doesn't return. */ |
98ccec97 | 3202 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3203 | ||
dff2ea5f | 3204 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3205 | get_identifier (PREFIX("stop_numeric_f08")), | |
3206 | void_type_node, 1, gfc_int4_type_node); | |
3207 | /* STOP doesn't return. */ | |
3208 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3209 | ||
241ecdc7 | 3210 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3211 | get_identifier (PREFIX("stop_string")), ".R.", | |
3212 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3213 | /* STOP doesn't return. */ |
241ecdc7 | 3214 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3215 | |
241ecdc7 | 3216 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3217 | get_identifier (PREFIX("error_stop_numeric")), | |
3218 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3219 | /* ERROR STOP doesn't return. */ |
3220 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3221 | ||
241ecdc7 | 3222 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3223 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3224 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3225 | /* ERROR STOP doesn't return. */ |
3226 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3227 | ||
241ecdc7 | 3228 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3229 | get_identifier (PREFIX("pause_numeric")), | |
3230 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3231 | |
241ecdc7 | 3232 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3233 | get_identifier (PREFIX("pause_string")), ".R.", | |
3234 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3235 | |
241ecdc7 | 3236 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3237 | get_identifier (PREFIX("runtime_error")), ".R", | |
3238 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3239 | /* The runtime_error function does not return. */ |
3240 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3241 | |
241ecdc7 | 3242 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3243 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3244 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3245 | /* The runtime_error_at function does not return. */ |
3246 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3247 | |
241ecdc7 | 3248 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3249 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3250 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3251 | ||
3252 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3253 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3254 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3255 | pchar_type_node); | |
3256 | ||
3257 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3258 | get_identifier (PREFIX("os_error")), ".R", | |
3259 | void_type_node, 1, pchar_type_node); | |
9915365e | 3260 | /* The runtime_error function does not return. */ |
3261 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3262 | ||
241ecdc7 | 3263 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3264 | get_identifier (PREFIX("set_args")), | |
3265 | void_type_node, 2, integer_type_node, | |
3266 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3267 | |
241ecdc7 | 3268 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3269 | get_identifier (PREFIX("set_fpe")), | |
3270 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3271 | |
56c7c2d7 | 3272 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3273 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3274 | get_identifier (PREFIX("set_options")), "..R", | |
3275 | void_type_node, 2, integer_type_node, | |
3276 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3277 | |
241ecdc7 | 3278 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3279 | get_identifier (PREFIX("set_convert")), | |
3280 | void_type_node, 1, integer_type_node); | |
15774a8b | 3281 | |
241ecdc7 | 3282 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3283 | get_identifier (PREFIX("set_record_marker")), | |
3284 | void_type_node, 1, integer_type_node); | |
f23886ab | 3285 | |
241ecdc7 | 3286 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3287 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3288 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3289 | |
8ce86007 | 3290 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3291 | get_identifier (PREFIX("internal_pack")), ".r", |
3292 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3293 | |
8ce86007 | 3294 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3295 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3296 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3297 | ||
3298 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3299 | get_identifier (PREFIX("associated")), ".RR", | |
3300 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3301 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3302 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3303 | |
70b5944a | 3304 | /* Coarray library calls. */ |
3305 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
3306 | { | |
3307 | tree pint_type, pppchar_type; | |
3308 | ||
3309 | pint_type = build_pointer_type (integer_type_node); | |
3310 | pppchar_type | |
3311 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3312 | ||
3313 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3314 | get_identifier (PREFIX("caf_init")), void_type_node, | |
53687b4e | 3315 | 2, pint_type, pppchar_type); |
70b5944a | 3316 | |
3317 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3318 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3319 | ||
d44f2f7c | 3320 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
3321 | get_identifier (PREFIX("caf_this_image")), integer_type_node, | |
3322 | 1, integer_type_node); | |
3323 | ||
3324 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
3325 | get_identifier (PREFIX("caf_num_images")), integer_type_node, | |
da82fa7c | 3326 | 2, integer_type_node, integer_type_node); |
d44f2f7c | 3327 | |
a961ca30 | 3328 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3329 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3330 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3331 | pchar_type_node, integer_type_node); |
3332 | ||
3333 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3334 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3335 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3336 | |
5f4a118e | 3337 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
3338 | get_identifier (PREFIX("caf_get")), ".R.RRRW", void_type_node, 8, | |
3339 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
3340 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node); | |
3341 | ||
3342 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
3343 | get_identifier (PREFIX("caf_send")), ".R.RRRR", void_type_node, 8, | |
3344 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
3345 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node); | |
3346 | ||
3347 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3348 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRR", void_type_node, | |
3349 | 12, pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
3350 | pvoid_type_node, pvoid_type_node, size_type_node, integer_type_node, | |
3351 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node); | |
3352 | ||
70b5944a | 3353 | gfor_fndecl_caf_critical = gfc_build_library_function_decl ( |
3354 | get_identifier (PREFIX("caf_critical")), void_type_node, 0); | |
3355 | ||
3356 | gfor_fndecl_caf_end_critical = gfc_build_library_function_decl ( | |
3357 | get_identifier (PREFIX("caf_end_critical")), void_type_node, 0); | |
3358 | ||
3359 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3360 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3361 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3362 | |
3363 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( | |
96b417f0 | 3364 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3365 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3366 | pchar_type_node, integer_type_node); |
70b5944a | 3367 | |
3368 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3369 | get_identifier (PREFIX("caf_error_stop")), | |
3370 | void_type_node, 1, gfc_int4_type_node); | |
3371 | /* CAF's ERROR STOP doesn't return. */ | |
3372 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3373 | ||
3374 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3375 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3376 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3377 | /* CAF's ERROR STOP doesn't return. */ | |
3378 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3379 | |
3380 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3381 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3382 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3383 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3384 | ||
3385 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3386 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3387 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3388 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3389 | ||
3390 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3391 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3392 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3393 | pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3394 | } |
3395 | ||
4ee9c684 | 3396 | gfc_build_intrinsic_function_decls (); |
3397 | gfc_build_intrinsic_lib_fndecls (); | |
3398 | gfc_build_io_library_fndecls (); | |
3399 | } | |
3400 | ||
3401 | ||
231e961a | 3402 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3403 | |
c5faa799 | 3404 | static void |
3405 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3406 | gfc_wrapped_block *block) | |
4ee9c684 | 3407 | { |
c5faa799 | 3408 | stmtblock_t init; |
4ee9c684 | 3409 | |
b9c7fce7 | 3410 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3411 | |
c5faa799 | 3412 | gfc_start_block (&init); |
4ee9c684 | 3413 | |
3414 | /* Evaluate the string length expression. */ | |
c5faa799 | 3415 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3416 | |
c5faa799 | 3417 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3418 | |
c5faa799 | 3419 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3420 | } |
3421 | ||
3422 | ||
3423 | /* Allocate and cleanup an automatic character variable. */ | |
3424 | ||
c5faa799 | 3425 | static void |
3426 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3427 | { |
c5faa799 | 3428 | stmtblock_t init; |
4ee9c684 | 3429 | tree decl; |
4ee9c684 | 3430 | tree tmp; |
3431 | ||
22d678e8 | 3432 | gcc_assert (sym->backend_decl); |
eeebe20b | 3433 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3434 | |
3714c8b6 | 3435 | gfc_init_block (&init); |
4ee9c684 | 3436 | |
3437 | /* Evaluate the string length expression. */ | |
c5faa799 | 3438 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3439 | |
c5faa799 | 3440 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3441 | |
4ee9c684 | 3442 | decl = sym->backend_decl; |
3443 | ||
afcf285e | 3444 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3445 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3446 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3447 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3448 | |
c5faa799 | 3449 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3450 | } |
3451 | ||
c8f1568f | 3452 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3453 | ||
c5faa799 | 3454 | static void |
3455 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3456 | { |
c5faa799 | 3457 | stmtblock_t init; |
c8f1568f | 3458 | |
3459 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3460 | gfc_start_block (&init); |
c8f1568f | 3461 | |
3462 | /* Set the initial value to length. See the comments in | |
3463 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3464 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3465 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3466 | |
c5faa799 | 3467 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3468 | } |
3469 | ||
d4163395 | 3470 | static void |
3471 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3472 | { | |
3473 | tree t = *tp, var, val; | |
3474 | ||
3475 | if (t == NULL || t == error_mark_node) | |
3476 | return; | |
3477 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3478 | return; | |
3479 | ||
3480 | if (TREE_CODE (t) == SAVE_EXPR) | |
3481 | { | |
3482 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3483 | { | |
3484 | *tp = TREE_OPERAND (t, 0); | |
3485 | return; | |
3486 | } | |
3487 | val = TREE_OPERAND (t, 0); | |
3488 | } | |
3489 | else | |
3490 | val = t; | |
3491 | ||
3492 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3493 | gfc_add_decl_to_function (var); | |
75a70cf9 | 3494 | gfc_add_modify (body, var, val); |
d4163395 | 3495 | if (TREE_CODE (t) == SAVE_EXPR) |
3496 | TREE_OPERAND (t, 0) = var; | |
3497 | *tp = var; | |
3498 | } | |
3499 | ||
3500 | static void | |
3501 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3502 | { | |
3503 | tree t; | |
3504 | ||
3505 | if (type == NULL || type == error_mark_node) | |
3506 | return; | |
3507 | ||
3508 | type = TYPE_MAIN_VARIANT (type); | |
3509 | ||
3510 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3511 | { | |
3512 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3513 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3514 | ||
3515 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3516 | { | |
3517 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3518 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3519 | } | |
3520 | } | |
3521 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3522 | { | |
3523 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3524 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3525 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3526 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3527 | ||
3528 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3529 | { | |
3530 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3531 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3532 | } | |
3533 | } | |
3534 | } | |
3535 | ||
3536 | /* Make sure all type sizes and array domains are either constant, | |
3537 | or variable or parameter decls. This is a simplified variant | |
3538 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3539 | variables in the expressions have been gimplified yet. | |
3540 | As type sizes and domains for various variable length arrays | |
3541 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3542 | time, without this routine gimplify_type_sizes in the middle-end | |
3543 | could result in the type sizes being gimplified earlier than where | |
3544 | those variables are initialized. */ | |
3545 | ||
3546 | void | |
3547 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3548 | { | |
3549 | tree type = TREE_TYPE (sym->backend_decl); | |
3550 | ||
3551 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3552 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3553 | { | |
3554 | if (! current_fake_result_decl) | |
3555 | return; | |
3556 | ||
3557 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3558 | } | |
3559 | ||
3560 | while (POINTER_TYPE_P (type)) | |
3561 | type = TREE_TYPE (type); | |
3562 | ||
3563 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3564 | { | |
3565 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3566 | ||
3567 | while (POINTER_TYPE_P (etype)) | |
3568 | etype = TREE_TYPE (etype); | |
3569 | ||
3570 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3571 | } | |
3572 | ||
3573 | gfc_trans_vla_type_sizes_1 (type, body); | |
3574 | } | |
3575 | ||
4ee9c684 | 3576 | |
f0d4969f | 3577 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3578 | and using trans_assignment to do the work. Set dealloc to false |
3579 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3580 | void |
3581 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3582 | { |
f0d4969f | 3583 | gfc_expr *e; |
87114d2e | 3584 | tree tmp; |
3585 | tree present; | |
3586 | ||
c5faa799 | 3587 | gcc_assert (block); |
3588 | ||
f0d4969f | 3589 | gcc_assert (!sym->attr.allocatable); |
3590 | gfc_set_sym_referenced (sym); | |
3591 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3592 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3593 | if (sym->attr.dummy && (sym->attr.optional |
3594 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3595 | { |
f0d4969f | 3596 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3597 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3598 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3599 | } |
c5faa799 | 3600 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3601 | gfc_free_expr (e); |
87114d2e | 3602 | } |
3603 | ||
3604 | ||
8714fc76 | 3605 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3606 | them their default initializer, if they do not have allocatable | |
3607 | components, they have their allocatable components deallocated. */ | |
3608 | ||
c5faa799 | 3609 | static void |
3610 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3611 | { |
c5faa799 | 3612 | stmtblock_t init; |
f0d4969f | 3613 | gfc_formal_arglist *f; |
8714fc76 | 3614 | tree tmp; |
5907c3ea | 3615 | tree present; |
f0d4969f | 3616 | |
c5faa799 | 3617 | gfc_init_block (&init); |
6777213b | 3618 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3619 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3620 | && !f->sym->attr.pointer |
3621 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3622 | { |
942ba353 | 3623 | tmp = NULL_TREE; |
3624 | ||
3625 | /* Note: Allocatables are excluded as they are already handled | |
3626 | by the caller. */ | |
3627 | if (!f->sym->attr.allocatable | |
3628 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3629 | { |
942ba353 | 3630 | stmtblock_t block; |
3631 | gfc_expr *e; | |
3632 | ||
3633 | gfc_init_block (&block); | |
3634 | f->sym->attr.referenced = 1; | |
3635 | e = gfc_lval_expr_from_sym (f->sym); | |
3636 | gfc_add_finalizer_call (&block, e); | |
3637 | gfc_free_expr (e); | |
3638 | tmp = gfc_finish_block (&block); | |
3639 | } | |
5907c3ea | 3640 | |
942ba353 | 3641 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
3642 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
3643 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
3644 | f->sym->backend_decl, | |
3645 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3646 | |
942ba353 | 3647 | if (tmp != NULL_TREE && (f->sym->attr.optional |
3648 | || f->sym->ns->proc_name->attr.entry_master)) | |
3649 | { | |
3650 | present = gfc_conv_expr_present (f->sym); | |
3651 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3652 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 3653 | } |
942ba353 | 3654 | |
3655 | if (tmp != NULL_TREE) | |
3656 | gfc_add_expr_to_block (&init, tmp); | |
3657 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 3658 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3659 | } |
c56d57d6 | 3660 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3661 | && f->sym->ts.type == BT_CLASS | |
3662 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 3663 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 3664 | { |
942ba353 | 3665 | stmtblock_t block; |
3666 | gfc_expr *e; | |
3667 | ||
3668 | gfc_init_block (&block); | |
3669 | f->sym->attr.referenced = 1; | |
3670 | e = gfc_lval_expr_from_sym (f->sym); | |
3671 | gfc_add_finalizer_call (&block, e); | |
3672 | gfc_free_expr (e); | |
3673 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 3674 | |
3675 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3676 | { | |
3677 | present = gfc_conv_expr_present (f->sym); | |
3678 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3679 | present, tmp, | |
3680 | build_empty_stmt (input_location)); | |
3681 | } | |
3682 | ||
3683 | gfc_add_expr_to_block (&init, tmp); | |
3684 | } | |
f0d4969f | 3685 | |
c5faa799 | 3686 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3687 | } |
3688 | ||
87114d2e | 3689 | |
4ee9c684 | 3690 | /* Generate function entry and exit code, and add it to the function body. |
3691 | This includes: | |
f888a3fb | 3692 | Allocation and initialization of array variables. |
4ee9c684 | 3693 | Allocation of character string variables. |
c8f1568f | 3694 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 3695 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 3696 | Initialization of ASSOCIATE names. |
0a96a7cc | 3697 | Automatic deallocation. */ |
4ee9c684 | 3698 | |
89ac8ba1 | 3699 | void |
3700 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 3701 | { |
3702 | locus loc; | |
3703 | gfc_symbol *sym; | |
d4163395 | 3704 | gfc_formal_arglist *f; |
c5faa799 | 3705 | stmtblock_t tmpblock; |
25dd7350 | 3706 | bool seen_trans_deferred_array = false; |
617125a6 | 3707 | tree tmp = NULL; |
3708 | gfc_expr *e; | |
3709 | gfc_se se; | |
3710 | stmtblock_t init; | |
4ee9c684 | 3711 | |
3712 | /* Deal with implicit return variables. Explicit return variables will | |
3713 | already have been added. */ | |
3714 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
3715 | { | |
3716 | if (!current_fake_result_decl) | |
3717 | { | |
c6871095 | 3718 | gfc_entry_list *el = NULL; |
3719 | if (proc_sym->attr.entry_master) | |
3720 | { | |
3721 | for (el = proc_sym->ns->entries; el; el = el->next) | |
3722 | if (el->sym != el->sym->result) | |
3723 | break; | |
3724 | } | |
fa7b6574 | 3725 | /* TODO: move to the appropriate place in resolve.c. */ |
3726 | if (warn_return_type && el == NULL) | |
3727 | gfc_warning ("Return value of function '%s' at %L not set", | |
3728 | proc_sym->name, &proc_sym->declared_at); | |
4ee9c684 | 3729 | } |
c6871095 | 3730 | else if (proc_sym->as) |
4ee9c684 | 3731 | { |
d4163395 | 3732 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 3733 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 3734 | |
3735 | /* An automatic character length, pointer array result. */ | |
3736 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 3737 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
89ac8ba1 | 3738 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3739 | } |
3740 | else if (proc_sym->ts.type == BT_CHARACTER) | |
3741 | { | |
617125a6 | 3742 | if (proc_sym->ts.deferred) |
3743 | { | |
3744 | tmp = NULL; | |
da2c4122 | 3745 | gfc_save_backend_locus (&loc); |
3746 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 3747 | gfc_start_block (&init); |
3748 | /* Zero the string length on entry. */ | |
3749 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
3750 | build_int_cst (gfc_charlen_type_node, 0)); | |
3751 | /* Null the pointer. */ | |
3752 | e = gfc_lval_expr_from_sym (proc_sym); | |
3753 | gfc_init_se (&se, NULL); | |
3754 | se.want_pointer = 1; | |
3755 | gfc_conv_expr (&se, e); | |
3756 | gfc_free_expr (e); | |
3757 | tmp = se.expr; | |
3758 | gfc_add_modify (&init, tmp, | |
3759 | fold_convert (TREE_TYPE (se.expr), | |
3760 | null_pointer_node)); | |
da2c4122 | 3761 | gfc_restore_backend_locus (&loc); |
617125a6 | 3762 | |
3763 | /* Pass back the string length on exit. */ | |
3764 | tmp = proc_sym->ts.u.cl->passed_length; | |
3765 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3766 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3767 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3768 | gfc_charlen_type_node, tmp, | |
3769 | proc_sym->ts.u.cl->backend_decl); | |
3770 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
3771 | } | |
3772 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 3773 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 3774 | } |
3775 | else | |
bdaed7d2 | 3776 | gcc_assert (gfc_option.flag_f2c |
3777 | && proc_sym->ts.type == BT_COMPLEX); | |
4ee9c684 | 3778 | } |
3779 | ||
87114d2e | 3780 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
3781 | should be done here so that the offsets and lbounds of arrays | |
3782 | are available. */ | |
da2c4122 | 3783 | gfc_save_backend_locus (&loc); |
3784 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 3785 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 3786 | gfc_restore_backend_locus (&loc); |
87114d2e | 3787 | |
4ee9c684 | 3788 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
3789 | { | |
6b3ceb4e | 3790 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
3791 | && (sym->ts.u.derived->attr.alloc_comp | |
3792 | || gfc_is_finalizable (sym->ts.u.derived, | |
3793 | NULL)); | |
8f3f9eab | 3794 | if (sym->assoc) |
3c82e013 | 3795 | continue; |
3796 | ||
a56d63bc | 3797 | if (sym->attr.subref_array_pointer |
3798 | && GFC_DECL_SPAN (sym->backend_decl) | |
3799 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
3800 | { | |
3801 | gfc_init_block (&tmpblock); | |
3802 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
3803 | build_int_cst (gfc_array_index_type, 0)); | |
3804 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3805 | NULL_TREE); | |
3806 | } | |
3807 | ||
85ae3cab | 3808 | if (sym->ts.type == BT_CLASS |
3809 | && (sym->attr.save || gfc_option.flag_max_stack_var_size == 0) | |
fb139b21 | 3810 | && CLASS_DATA (sym)->attr.allocatable) |
3811 | { | |
3812 | tree vptr; | |
3813 | ||
3814 | if (UNLIMITED_POLY (sym)) | |
3815 | vptr = null_pointer_node; | |
3816 | else | |
3817 | { | |
3818 | gfc_symbol *vsym; | |
3819 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
3820 | vptr = gfc_get_symbol_decl (vsym); | |
3821 | vptr = gfc_build_addr_expr (NULL, vptr); | |
3822 | } | |
3823 | ||
3824 | if (CLASS_DATA (sym)->attr.dimension | |
3825 | || (CLASS_DATA (sym)->attr.codimension | |
3826 | && gfc_option.coarray != GFC_FCOARRAY_LIB)) | |
3827 | { | |
3828 | tmp = gfc_class_data_get (sym->backend_decl); | |
3829 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
3830 | } | |
3831 | else | |
3832 | tmp = null_pointer_node; | |
3833 | ||
3834 | DECL_INITIAL (sym->backend_decl) | |
3835 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
3836 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
3837 | } | |
3838 | else if (sym->attr.dimension || sym->attr.codimension) | |
4ee9c684 | 3839 | { |
f7a6fca4 | 3840 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ |
3841 | array_type tmp = sym->as->type; | |
3842 | if (tmp == AS_ASSUMED_SIZE && sym->as->cp_was_assumed) | |
3843 | tmp = AS_EXPLICIT; | |
3844 | switch (tmp) | |
4ee9c684 | 3845 | { |
3846 | case AS_EXPLICIT: | |
3847 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 3848 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3849 | else if (sym->attr.pointer || sym->attr.allocatable) |
3850 | { | |
3851 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 3852 | { |
3853 | gfc_save_backend_locus (&loc); | |
3854 | gfc_set_backend_locus (&sym->declared_at); | |
3855 | gfc_trans_static_array_pointer (sym); | |
3856 | gfc_restore_backend_locus (&loc); | |
3857 | } | |
4ee9c684 | 3858 | else |
25dd7350 | 3859 | { |
3860 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3861 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3862 | } |
4ee9c684 | 3863 | } |
7c7db7f6 | 3864 | else if (sym->attr.codimension && TREE_STATIC (sym->backend_decl)) |
3865 | { | |
3866 | gfc_init_block (&tmpblock); | |
3867 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
3868 | &tmpblock, sym); | |
3869 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
3870 | NULL_TREE); | |
3871 | continue; | |
3872 | } | |
197423f5 | 3873 | else |
4ee9c684 | 3874 | { |
da2c4122 | 3875 | gfc_save_backend_locus (&loc); |
3876 | gfc_set_backend_locus (&sym->declared_at); | |
3877 | ||
6b3ceb4e | 3878 | if (alloc_comp_or_fini) |
25dd7350 | 3879 | { |
3880 | seen_trans_deferred_array = true; | |
89ac8ba1 | 3881 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 3882 | } |
f0d4969f | 3883 | else if (sym->ts.type == BT_DERIVED |
3884 | && sym->value | |
3885 | && !sym->attr.data | |
3886 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 3887 | { |
3888 | gfc_start_block (&tmpblock); | |
3889 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 3890 | gfc_add_init_cleanup (block, |
c5faa799 | 3891 | gfc_finish_block (&tmpblock), |
3892 | NULL_TREE); | |
3893 | } | |
25dd7350 | 3894 | |
c5faa799 | 3895 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 3896 | sym, block); |
4671339c | 3897 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 3898 | } |
3899 | break; | |
3900 | ||
3901 | case AS_ASSUMED_SIZE: | |
3902 | /* Must be a dummy parameter. */ | |
452695a8 | 3903 | gcc_assert (sym->attr.dummy || sym->as->cp_was_assumed); |
4ee9c684 | 3904 | |
3905 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 3906 | if (sym->attr.dummy) |
89ac8ba1 | 3907 | gfc_trans_g77_array (sym, block); |
c5faa799 | 3908 | break; |
4ee9c684 | 3909 | |
3910 | case AS_ASSUMED_SHAPE: | |
3911 | /* Must be a dummy parameter. */ | |
22d678e8 | 3912 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 3913 | |
89ac8ba1 | 3914 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 3915 | break; |
3916 | ||
f00f6dd6 | 3917 | case AS_ASSUMED_RANK: |
4ee9c684 | 3918 | case AS_DEFERRED: |
25dd7350 | 3919 | seen_trans_deferred_array = true; |
89ac8ba1 | 3920 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3921 | break; |
3922 | ||
3923 | default: | |
22d678e8 | 3924 | gcc_unreachable (); |
4ee9c684 | 3925 | } |
6b3ceb4e | 3926 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 3927 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 3928 | } |
fd23cc08 | 3929 | else if ((!sym->attr.dummy || sym->ts.deferred) |
3930 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 3931 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 3932 | continue; |
617125a6 | 3933 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 3934 | && (sym->attr.allocatable |
3935 | || (sym->ts.type == BT_CLASS | |
3936 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 3937 | { |
be125be0 | 3938 | if (!sym->attr.save && gfc_option.flag_max_stack_var_size != 0) |
908e9973 | 3939 | { |
d0d776fb | 3940 | tree descriptor = NULL_TREE; |
3941 | ||
908e9973 | 3942 | /* Nullify and automatic deallocation of allocatable |
3943 | scalars. */ | |
908e9973 | 3944 | e = gfc_lval_expr_from_sym (sym); |
3945 | if (sym->ts.type == BT_CLASS) | |
607ae689 | 3946 | gfc_add_data_component (e); |
908e9973 | 3947 | |
3948 | gfc_init_se (&se, NULL); | |
fd23cc08 | 3949 | if (sym->ts.type != BT_CLASS |
3950 | || sym->ts.u.derived->attr.dimension | |
3951 | || sym->ts.u.derived->attr.codimension) | |
3952 | { | |
3953 | se.want_pointer = 1; | |
3954 | gfc_conv_expr (&se, e); | |
3955 | } | |
3956 | else if (sym->ts.type == BT_CLASS | |
3957 | && !CLASS_DATA (sym)->attr.dimension | |
3958 | && !CLASS_DATA (sym)->attr.codimension) | |
3959 | { | |
3960 | se.want_pointer = 1; | |
3961 | gfc_conv_expr (&se, e); | |
3962 | } | |
3963 | else | |
3964 | { | |
3965 | gfc_conv_expr (&se, e); | |
d0d776fb | 3966 | descriptor = se.expr; |
fd23cc08 | 3967 | se.expr = gfc_conv_descriptor_data_addr (se.expr); |
3968 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
3969 | } | |
908e9973 | 3970 | gfc_free_expr (e); |
3971 | ||
da2c4122 | 3972 | gfc_save_backend_locus (&loc); |
3973 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 3974 | gfc_start_block (&init); |
617125a6 | 3975 | |
3976 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3977 | { | |
3978 | /* Nullify when entering the scope. */ | |
883d6776 | 3979 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
3980 | TREE_TYPE (se.expr), se.expr, | |
3981 | fold_convert (TREE_TYPE (se.expr), | |
3982 | null_pointer_node)); | |
3983 | if (sym->attr.optional) | |
3984 | { | |
3985 | tree present = gfc_conv_expr_present (sym); | |
3986 | tmp = build3_loc (input_location, COND_EXPR, | |
3987 | void_type_node, present, tmp, | |
3988 | build_empty_stmt (input_location)); | |
3989 | } | |
3990 | gfc_add_expr_to_block (&init, tmp); | |
617125a6 | 3991 | } |
3992 | ||
883d6776 | 3993 | if ((sym->attr.dummy || sym->attr.result) |
617125a6 | 3994 | && sym->ts.type == BT_CHARACTER |
3995 | && sym->ts.deferred) | |
3996 | { | |
3997 | /* Character length passed by reference. */ | |
3998 | tmp = sym->ts.u.cl->passed_length; | |
3999 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4000 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4001 | ||
4002 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4003 | /* Zero the string length when entering the scope. */ | |
4004 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, | |
4005 | build_int_cst (gfc_charlen_type_node, 0)); | |
4006 | else | |
883d6776 | 4007 | { |
4008 | tree tmp2; | |
4009 | ||
4010 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4011 | gfc_charlen_type_node, | |
4012 | sym->ts.u.cl->backend_decl, tmp); | |
4013 | if (sym->attr.optional) | |
4014 | { | |
4015 | tree present = gfc_conv_expr_present (sym); | |
4016 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4017 | void_type_node, present, tmp2, | |
4018 | build_empty_stmt (input_location)); | |
4019 | } | |
4020 | gfc_add_expr_to_block (&init, tmp2); | |
4021 | } | |
617125a6 | 4022 | |
da2c4122 | 4023 | gfc_restore_backend_locus (&loc); |
4024 | ||
617125a6 | 4025 | /* Pass the final character length back. */ |
4026 | if (sym->attr.intent != INTENT_IN) | |
883d6776 | 4027 | { |
4028 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4029 | gfc_charlen_type_node, tmp, | |
4030 | sym->ts.u.cl->backend_decl); | |
4031 | if (sym->attr.optional) | |
4032 | { | |
4033 | tree present = gfc_conv_expr_present (sym); | |
4034 | tmp = build3_loc (input_location, COND_EXPR, | |
4035 | void_type_node, present, tmp, | |
4036 | build_empty_stmt (input_location)); | |
4037 | } | |
4038 | } | |
617125a6 | 4039 | else |
4040 | tmp = NULL_TREE; | |
4041 | } | |
da2c4122 | 4042 | else |
4043 | gfc_restore_backend_locus (&loc); | |
908e9973 | 4044 | |
4045 | /* Deallocate when leaving the scope. Nullifying is not | |
4046 | needed. */ | |
afb69dbf | 4047 | if (!sym->attr.result && !sym->attr.dummy |
4048 | && !sym->ns->proc_name->attr.is_main_program) | |
d0d776fb | 4049 | { |
4050 | if (sym->ts.type == BT_CLASS | |
4051 | && CLASS_DATA (sym)->attr.codimension) | |
4052 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4053 | NULL_TREE, NULL_TREE, | |
4054 | NULL_TREE, true, NULL, | |
4055 | true); | |
4056 | else | |
c23adf93 | 4057 | { |
4058 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
4059 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, | |
4060 | true, expr, sym->ts); | |
4061 | gfc_free_expr (expr); | |
4062 | } | |
d0d776fb | 4063 | } |
afc44c79 | 4064 | if (sym->ts.type == BT_CLASS) |
4065 | { | |
4066 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4067 | gfc_symbol *vtab; |
afc44c79 | 4068 | tree rhs; |
da2c4122 | 4069 | |
4070 | gfc_save_backend_locus (&loc); | |
4071 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4072 | e = gfc_lval_expr_from_sym (sym); |
4073 | gfc_add_vptr_component (e); | |
4074 | gfc_init_se (&se, NULL); | |
4075 | se.want_pointer = 1; | |
4076 | gfc_conv_expr (&se, e); | |
4077 | gfc_free_expr (e); | |
a90fe829 | 4078 | if (UNLIMITED_POLY (sym)) |
4079 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4080 | else | |
4081 | { | |
4082 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4083 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4084 | gfc_get_symbol_decl (vtab)); | |
4085 | } | |
afc44c79 | 4086 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4087 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4088 | } |
4089 | ||
89ac8ba1 | 4090 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4091 | } |
0a96a7cc | 4092 | } |
617125a6 | 4093 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4094 | { | |
4095 | tree tmp = NULL; | |
4096 | stmtblock_t init; | |
4097 | ||
4098 | /* If we get to here, all that should be left are pointers. */ | |
4099 | gcc_assert (sym->attr.pointer); | |
4100 | ||
4101 | if (sym->attr.dummy) | |
4102 | { | |
4103 | gfc_start_block (&init); | |
4104 | ||
4105 | /* Character length passed by reference. */ | |
4106 | tmp = sym->ts.u.cl->passed_length; | |
4107 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4108 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4109 | gfc_add_modify (&init, sym->ts.u.cl->backend_decl, tmp); | |
4110 | /* Pass the final character length back. */ | |
4111 | if (sym->attr.intent != INTENT_IN) | |
4112 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4113 | gfc_charlen_type_node, tmp, | |
4114 | sym->ts.u.cl->backend_decl); | |
4115 | else | |
4116 | tmp = NULL_TREE; | |
4117 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4118 | } | |
4119 | } | |
3e715c81 | 4120 | else if (sym->ts.deferred) |
4121 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4122 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4123 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4124 | else if (sym->ts.type == BT_CHARACTER) |
4125 | { | |
4671339c | 4126 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4127 | gfc_set_backend_locus (&sym->declared_at); |
4128 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4129 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4130 | else |
89ac8ba1 | 4131 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4132 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4133 | } |
c8f1568f | 4134 | else if (sym->attr.assign) |
4135 | { | |
4671339c | 4136 | gfc_save_backend_locus (&loc); |
c8f1568f | 4137 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4138 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4139 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4140 | } |
f0d4969f | 4141 | else if (sym->ts.type == BT_DERIVED |
4142 | && sym->value | |
4143 | && !sym->attr.data | |
4144 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4145 | { |
4146 | gfc_start_block (&tmpblock); | |
4147 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4148 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4149 | NULL_TREE); |
4150 | } | |
a90fe829 | 4151 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 4152 | gcc_unreachable (); |
4ee9c684 | 4153 | } |
4154 | ||
c5faa799 | 4155 | gfc_init_block (&tmpblock); |
d4163395 | 4156 | |
6777213b | 4157 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4158 | { |
4159 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4160 | { | |
eeebe20b | 4161 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4162 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4163 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4164 | } |
1e853e89 | 4165 | } |
d4163395 | 4166 | |
4167 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4168 | && current_fake_result_decl != NULL) | |
4169 | { | |
eeebe20b | 4170 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4171 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4172 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4173 | } |
4174 | ||
89ac8ba1 | 4175 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4176 | } |
4177 | ||
df4d540f | 4178 | static GTY ((param_is (struct module_htab_entry))) htab_t module_htab; |
4179 | ||
4180 | /* Hash and equality functions for module_htab. */ | |
4181 | ||
4182 | static hashval_t | |
4183 | module_htab_do_hash (const void *x) | |
4184 | { | |
4185 | return htab_hash_string (((const struct module_htab_entry *)x)->name); | |
4186 | } | |
4187 | ||
4188 | static int | |
4189 | module_htab_eq (const void *x1, const void *x2) | |
4190 | { | |
4191 | return strcmp ((((const struct module_htab_entry *)x1)->name), | |
4192 | (const char *)x2) == 0; | |
4193 | } | |
4194 | ||
4195 | /* Hash and equality functions for module_htab's decls. */ | |
4196 | ||
4197 | static hashval_t | |
4198 | module_htab_decls_hash (const void *x) | |
4199 | { | |
4200 | const_tree t = (const_tree) x; | |
4201 | const_tree n = DECL_NAME (t); | |
4202 | if (n == NULL_TREE) | |
4203 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4204 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4205 | } |
4206 | ||
4207 | static int | |
4208 | module_htab_decls_eq (const void *x1, const void *x2) | |
4209 | { | |
4210 | const_tree t1 = (const_tree) x1; | |
4211 | const_tree n1 = DECL_NAME (t1); | |
4212 | if (n1 == NULL_TREE) | |
4213 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
4214 | return strcmp (IDENTIFIER_POINTER (n1), (const char *) x2) == 0; | |
4215 | } | |
4216 | ||
4217 | struct module_htab_entry * | |
4218 | gfc_find_module (const char *name) | |
4219 | { | |
4220 | void **slot; | |
4221 | ||
4222 | if (! module_htab) | |
4223 | module_htab = htab_create_ggc (10, module_htab_do_hash, | |
4224 | module_htab_eq, NULL); | |
4225 | ||
4226 | slot = htab_find_slot_with_hash (module_htab, name, | |
4227 | htab_hash_string (name), INSERT); | |
4228 | if (*slot == NULL) | |
4229 | { | |
25a27413 | 4230 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4231 | |
4232 | entry->name = gfc_get_string (name); | |
4233 | entry->decls = htab_create_ggc (10, module_htab_decls_hash, | |
4234 | module_htab_decls_eq, NULL); | |
4235 | *slot = (void *) entry; | |
4236 | } | |
4237 | return (struct module_htab_entry *) *slot; | |
4238 | } | |
4239 | ||
4240 | void | |
4241 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4242 | { | |
4243 | void **slot; | |
4244 | const char *name; | |
4245 | ||
4246 | if (DECL_NAME (decl)) | |
4247 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4248 | else | |
4249 | { | |
4250 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4251 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4252 | } | |
4253 | slot = htab_find_slot_with_hash (entry->decls, name, | |
4254 | htab_hash_string (name), INSERT); | |
4255 | if (*slot == NULL) | |
4256 | *slot = (void *) decl; | |
4257 | } | |
4258 | ||
4259 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 4260 | |
c40a5c1b | 4261 | |
4262 | /* Generate debugging symbols for namelists. This function must come after | |
4263 | generate_local_decl to ensure that the variables in the namelist are | |
4264 | already declared. */ | |
4265 | ||
4266 | static tree | |
4267 | generate_namelist_decl (gfc_symbol * sym) | |
4268 | { | |
4269 | gfc_namelist *nml; | |
4270 | tree decl; | |
4271 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4272 | ||
4273 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4274 | for (nml = sym->namelist; nml; nml = nml->next) | |
4275 | { | |
4276 | if (nml->sym->backend_decl == NULL_TREE) | |
4277 | { | |
4278 | nml->sym->attr.referenced = 1; | |
4279 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4280 | } | |
0a32260c | 4281 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4282 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4283 | } | |
4284 | ||
4285 | decl = make_node (NAMELIST_DECL); | |
4286 | TREE_TYPE (decl) = void_type_node; | |
4287 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4288 | DECL_NAME (decl) = get_identifier (sym->name); | |
4289 | return decl; | |
4290 | } | |
4291 | ||
4292 | ||
4ee9c684 | 4293 | /* Output an initialized decl for a module variable. */ |
4294 | ||
4295 | static void | |
4296 | gfc_create_module_variable (gfc_symbol * sym) | |
4297 | { | |
4298 | tree decl; | |
4ee9c684 | 4299 | |
d77f260f | 4300 | /* Module functions with alternate entries are dealt with later and |
4301 | would get caught by the next condition. */ | |
4302 | if (sym->attr.entry) | |
4303 | return; | |
4304 | ||
c5d33754 | 4305 | /* Make sure we convert the types of the derived types from iso_c_binding |
4306 | into (void *). */ | |
4307 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4308 | && sym->ts.type == BT_DERIVED) | |
4309 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4310 | ||
df4d540f | 4311 | if (sym->attr.flavor == FL_DERIVED |
4312 | && sym->backend_decl | |
4313 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4314 | { | |
4315 | decl = sym->backend_decl; | |
4316 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4317 | |
044bbd71 | 4318 | if (!sym->attr.use_assoc) |
9f1470cb | 4319 | { |
4320 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4321 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4322 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4323 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4324 | == sym->ns->proc_name->backend_decl); | |
4325 | } | |
df4d540f | 4326 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4327 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4328 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4329 | } | |
4330 | ||
cf269acc | 4331 | /* Only output variables, procedure pointers and array valued, |
4332 | or derived type, parameters. */ | |
4ee9c684 | 4333 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4334 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4335 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4336 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4337 | return; |
4338 | ||
df4d540f | 4339 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4340 | { | |
4341 | decl = sym->backend_decl; | |
16a40513 | 4342 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4343 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4344 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4345 | gfc_module_add_decl (cur_module, decl); | |
4346 | } | |
4347 | ||
d43a7f7f | 4348 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4349 | COMMONs and Cray pointees will already have been generated. */ |
4350 | if (sym->attr.use_assoc || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4351 | return; |
4352 | ||
2b685f8e | 4353 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4354 | if (sym->backend_decl |
df4d540f | 4355 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4356 | return; | |
2b685f8e | 4357 | |
23d075f4 | 4358 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
4ee9c684 | 4359 | internal_error ("backend decl for module variable %s already exists", |
4360 | sym->name); | |
4361 | ||
92983bfd | 4362 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4363 | && (sym->attr.access == ACCESS_UNKNOWN | |
4364 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4365 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
4366 | && gfc_option.flag_module_private)))) | |
4367 | sym->attr.access = ACCESS_PRIVATE; | |
4368 | ||
4369 | if (warn_unused_variable && !sym->attr.referenced | |
4370 | && sym->attr.access == ACCESS_PRIVATE) | |
4371 | gfc_warning ("Unused PRIVATE module variable '%s' declared at %L", | |
4372 | sym->name, &sym->declared_at); | |
4373 | ||
4ee9c684 | 4374 | /* We always want module variables to be created. */ |
4375 | sym->attr.referenced = 1; | |
4376 | /* Create the decl. */ | |
4377 | decl = gfc_get_symbol_decl (sym); | |
4378 | ||
4ee9c684 | 4379 | /* Create the variable. */ |
4380 | pushdecl (decl); | |
df4d540f | 4381 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4382 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4383 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4384 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4385 | |
4386 | /* Also add length of strings. */ | |
4387 | if (sym->ts.type == BT_CHARACTER) | |
4388 | { | |
4389 | tree length; | |
4390 | ||
eeebe20b | 4391 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4392 | gcc_assert (length || sym->attr.proc_pointer); |
4393 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4394 | { |
4395 | pushdecl (length); | |
b2c4af5e | 4396 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4397 | } |
4398 | } | |
a961ca30 | 4399 | |
4400 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4401 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4402 | has_coarray_vars = true; | |
4ee9c684 | 4403 | } |
4404 | ||
51d9479b | 4405 | /* Emit debug information for USE statements. */ |
df4d540f | 4406 | |
4407 | static void | |
4408 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4409 | { | |
4410 | gfc_use_list *use_stmt; | |
4411 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4412 | { | |
4413 | struct module_htab_entry *entry | |
4414 | = gfc_find_module (use_stmt->module_name); | |
4415 | gfc_use_rename *rent; | |
4416 | ||
4417 | if (entry->namespace_decl == NULL) | |
4418 | { | |
4419 | entry->namespace_decl | |
e60a6f7b | 4420 | = build_decl (input_location, |
4421 | NAMESPACE_DECL, | |
df4d540f | 4422 | get_identifier (use_stmt->module_name), |
4423 | void_type_node); | |
4424 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4425 | } | |
51d9479b | 4426 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4427 | if (!use_stmt->only_flag) |
4428 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4429 | NULL_TREE, | |
4430 | ns->proc_name->backend_decl, | |
4431 | false); | |
4432 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4433 | { | |
4434 | tree decl, local_name; | |
4435 | void **slot; | |
4436 | ||
4437 | if (rent->op != INTRINSIC_NONE) | |
4438 | continue; | |
4439 | ||
4440 | slot = htab_find_slot_with_hash (entry->decls, rent->use_name, | |
4441 | htab_hash_string (rent->use_name), | |
4442 | INSERT); | |
4443 | if (*slot == NULL) | |
4444 | { | |
4445 | gfc_symtree *st; | |
4446 | ||
4447 | st = gfc_find_symtree (ns->sym_root, | |
4448 | rent->local_name[0] | |
4449 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4450 | |
4451 | /* The following can happen if a derived type is renamed. */ | |
4452 | if (!st) | |
4453 | { | |
4454 | char *name; | |
4455 | name = xstrdup (rent->local_name[0] | |
4456 | ? rent->local_name : rent->use_name); | |
4457 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4458 | st = gfc_find_symtree (ns->sym_root, name); | |
4459 | free (name); | |
4460 | gcc_assert (st); | |
4461 | } | |
857c96ba | 4462 | |
4463 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4464 | local symbol (see PR41062). */ | |
4465 | if (!st->n.sym->attr.use_assoc) | |
4466 | continue; | |
4467 | ||
51d9479b | 4468 | if (st->n.sym->backend_decl |
4469 | && DECL_P (st->n.sym->backend_decl) | |
4470 | && st->n.sym->module | |
4471 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4472 | { |
51d9479b | 4473 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4474 | || (TREE_CODE (st->n.sym->backend_decl) | |
4475 | != VAR_DECL)); | |
df4d540f | 4476 | decl = copy_node (st->n.sym->backend_decl); |
4477 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4478 | DECL_EXTERNAL (decl) = 1; | |
4479 | DECL_IGNORED_P (decl) = 0; | |
4480 | DECL_INITIAL (decl) = NULL_TREE; | |
4481 | } | |
c40a5c1b | 4482 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
4483 | && st->n.sym->attr.use_only | |
4484 | && st->n.sym->module | |
4485 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
4486 | == 0) | |
4487 | { | |
4488 | decl = generate_namelist_decl (st->n.sym); | |
4489 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4490 | DECL_EXTERNAL (decl) = 1; | |
4491 | DECL_IGNORED_P (decl) = 0; | |
4492 | DECL_INITIAL (decl) = NULL_TREE; | |
4493 | } | |
df4d540f | 4494 | else |
4495 | { | |
4496 | *slot = error_mark_node; | |
4497 | htab_clear_slot (entry->decls, slot); | |
4498 | continue; | |
4499 | } | |
4500 | *slot = decl; | |
4501 | } | |
4502 | decl = (tree) *slot; | |
4503 | if (rent->local_name[0]) | |
4504 | local_name = get_identifier (rent->local_name); | |
4505 | else | |
4506 | local_name = NULL_TREE; | |
51d9479b | 4507 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4508 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4509 | ns->proc_name->backend_decl, | |
4510 | !use_stmt->only_flag); | |
4511 | } | |
4512 | } | |
4ee9c684 | 4513 | } |
4514 | ||
51d9479b | 4515 | |
2eb674c9 | 4516 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4517 | will handle. */ | |
4518 | ||
4519 | static bool | |
4520 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4521 | bool pointer) | |
4522 | { | |
4523 | gfc_constructor *c; | |
4524 | gfc_component *cm; | |
4525 | ||
4526 | if (pointer) | |
4527 | return true; | |
4528 | else if (array) | |
4529 | { | |
4530 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4531 | return true; | |
4532 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4533 | return check_constant_initializer (expr, ts, false, false); | |
4534 | else if (expr->expr_type != EXPR_ARRAY) | |
4535 | return false; | |
126387b5 | 4536 | for (c = gfc_constructor_first (expr->value.constructor); |
4537 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4538 | { |
4539 | if (c->iterator) | |
4540 | return false; | |
4541 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4542 | { | |
4543 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4544 | return false; | |
4545 | } | |
4546 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4547 | return false; | |
4548 | } | |
4549 | return true; | |
4550 | } | |
4551 | else switch (ts->type) | |
4552 | { | |
4553 | case BT_DERIVED: | |
4554 | if (expr->expr_type != EXPR_STRUCTURE) | |
4555 | return false; | |
eeebe20b | 4556 | cm = expr->ts.u.derived->components; |
126387b5 | 4557 | for (c = gfc_constructor_first (expr->value.constructor); |
4558 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4559 | { |
4560 | if (!c->expr || cm->attr.allocatable) | |
4561 | continue; | |
4562 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4563 | cm->attr.dimension, | |
4564 | cm->attr.pointer)) | |
4565 | return false; | |
4566 | } | |
4567 | return true; | |
4568 | default: | |
4569 | return expr->expr_type == EXPR_CONSTANT; | |
4570 | } | |
4571 | } | |
4572 | ||
4573 | /* Emit debug info for parameters and unreferenced variables with | |
4574 | initializers. */ | |
4575 | ||
4576 | static void | |
4577 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4578 | { | |
4579 | tree decl; | |
4580 | ||
4581 | if (sym->attr.flavor != FL_PARAMETER | |
4582 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4583 | return; | |
4584 | ||
4585 | if (sym->backend_decl != NULL | |
4586 | || sym->value == NULL | |
4587 | || sym->attr.use_assoc | |
4588 | || sym->attr.dummy | |
4589 | || sym->attr.result | |
4590 | || sym->attr.function | |
4591 | || sym->attr.intrinsic | |
4592 | || sym->attr.pointer | |
4593 | || sym->attr.allocatable | |
4594 | || sym->attr.cray_pointee | |
4595 | || sym->attr.threadprivate | |
4596 | || sym->attr.is_bind_c | |
4597 | || sym->attr.subref_array_pointer | |
4598 | || sym->attr.assign) | |
4599 | return; | |
4600 | ||
4601 | if (sym->ts.type == BT_CHARACTER) | |
4602 | { | |
eeebe20b | 4603 | gfc_conv_const_charlen (sym->ts.u.cl); |
4604 | if (sym->ts.u.cl->backend_decl == NULL | |
4605 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4606 | return; |
4607 | } | |
eeebe20b | 4608 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4609 | return; |
4610 | ||
4611 | if (sym->as) | |
4612 | { | |
4613 | int n; | |
4614 | ||
4615 | if (sym->as->type != AS_EXPLICIT) | |
4616 | return; | |
4617 | for (n = 0; n < sym->as->rank; n++) | |
4618 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4619 | || sym->as->upper[n] == NULL | |
4620 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4621 | return; | |
4622 | } | |
4623 | ||
4624 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4625 | sym->attr.dimension, false)) | |
4626 | return; | |
4627 | ||
a961ca30 | 4628 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
4629 | return; | |
4630 | ||
2eb674c9 | 4631 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4632 | decl = build_decl (input_location, |
4633 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4634 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4635 | if (sym->attr.flavor == FL_PARAMETER) | |
4636 | TREE_READONLY (decl) = 1; | |
4637 | gfc_set_decl_location (decl, &sym->declared_at); | |
4638 | if (sym->attr.dimension) | |
4639 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4640 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4641 | TREE_STATIC (decl) = 1; | |
4642 | TREE_USED (decl) = 1; | |
4643 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4644 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4645 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4646 | TREE_TYPE (decl), | |
4647 | sym->attr.dimension, | |
4648 | false, false); | |
2eb674c9 | 4649 | debug_hooks->global_decl (decl); |
4650 | } | |
4651 | ||
a961ca30 | 4652 | |
4653 | static void | |
4654 | generate_coarray_sym_init (gfc_symbol *sym) | |
4655 | { | |
4656 | tree tmp, size, decl, token; | |
4657 | ||
4658 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
a90fe829 | 4659 | || sym->attr.use_assoc || !sym->attr.referenced) |
a961ca30 | 4660 | return; |
4661 | ||
4662 | decl = sym->backend_decl; | |
4663 | TREE_USED(decl) = 1; | |
4664 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4665 | ||
4666 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 | |
4667 | to make sure the variable is not optimized away. */ | |
4668 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4669 | ||
4670 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
4671 | ||
a90fe829 | 4672 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 4673 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
4674 | fold_convert (size_type_node, size), | |
4675 | build_int_cst (size_type_node, 1)); | |
4676 | ||
a961ca30 | 4677 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
4678 | { | |
4679 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
4680 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 4681 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 4682 | } |
4683 | ||
4684 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
4685 | token = gfc_build_addr_expr (ppvoid_type_node, | |
4686 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
4687 | ||
4688 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, | |
7b186db6 | 4689 | build_int_cst (integer_type_node, |
4f5fe475 | 4690 | GFC_CAF_COARRAY_STATIC), /* type. */ |
a961ca30 | 4691 | token, null_pointer_node, /* token, stat. */ |
4692 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
4693 | build_int_cst (integer_type_node, 0)); | |
a90fe829 | 4694 | |
a961ca30 | 4695 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); |
4696 | ||
4697 | ||
4698 | /* Handle "static" initializer. */ | |
4699 | if (sym->value) | |
4700 | { | |
4701 | sym->attr.pointer = 1; | |
4702 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
4703 | true, false); | |
4704 | sym->attr.pointer = 0; | |
4705 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
4706 | } | |
4707 | } | |
4708 | ||
4709 | ||
4710 | /* Generate constructor function to initialize static, nonallocatable | |
4711 | coarrays. */ | |
4712 | ||
4713 | static void | |
4714 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
4715 | { | |
4716 | tree fndecl, tmp, decl, save_fn_decl; | |
4717 | ||
4718 | save_fn_decl = current_function_decl; | |
4719 | push_function_context (); | |
4720 | ||
4721 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
4722 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
4723 | create_tmp_var_name ("_caf_init"), tmp); | |
4724 | ||
4725 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
4726 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
4727 | ||
4728 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
4729 | DECL_ARTIFICIAL (decl) = 1; | |
4730 | DECL_IGNORED_P (decl) = 1; | |
4731 | DECL_CONTEXT (decl) = fndecl; | |
4732 | DECL_RESULT (fndecl) = decl; | |
4733 | ||
4734 | pushdecl (fndecl); | |
4735 | current_function_decl = fndecl; | |
4736 | announce_function (fndecl); | |
4737 | ||
4738 | rest_of_decl_compilation (fndecl, 0, 0); | |
4739 | make_decl_rtl (fndecl); | |
00cf115c | 4740 | allocate_struct_function (fndecl, false); |
a961ca30 | 4741 | |
cde2be84 | 4742 | pushlevel (); |
a961ca30 | 4743 | gfc_init_block (&caf_init_block); |
4744 | ||
4745 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
4746 | ||
4747 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
4748 | decl = getdecls (); | |
4749 | ||
cde2be84 | 4750 | poplevel (1, 1); |
a961ca30 | 4751 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
4752 | ||
4753 | DECL_SAVED_TREE (fndecl) | |
4754 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
4755 | DECL_INITIAL (fndecl)); | |
4756 | dump_function (TDI_original, fndecl); | |
4757 | ||
4758 | cfun->function_end_locus = input_location; | |
4759 | set_cfun (NULL); | |
4760 | ||
4761 | if (decl_function_context (fndecl)) | |
4762 | (void) cgraph_create_node (fndecl); | |
4763 | else | |
4764 | cgraph_finalize_function (fndecl, true); | |
4765 | ||
4766 | pop_function_context (); | |
4767 | current_function_decl = save_fn_decl; | |
4768 | } | |
4769 | ||
4770 | ||
c40a5c1b | 4771 | static void |
4772 | create_module_nml_decl (gfc_symbol *sym) | |
4773 | { | |
4774 | if (sym->attr.flavor == FL_NAMELIST) | |
4775 | { | |
4776 | tree decl = generate_namelist_decl (sym); | |
4777 | pushdecl (decl); | |
4778 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
4779 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4780 | rest_of_decl_compilation (decl, 1, 0); | |
4781 | gfc_module_add_decl (cur_module, decl); | |
4782 | } | |
4783 | } | |
4784 | ||
4785 | ||
51d9479b | 4786 | /* Generate all the required code for module variables. */ |
4787 | ||
4788 | void | |
4789 | gfc_generate_module_vars (gfc_namespace * ns) | |
4790 | { | |
4791 | module_namespace = ns; | |
4792 | cur_module = gfc_find_module (ns->proc_name->name); | |
4793 | ||
4794 | /* Check if the frontend left the namespace in a reasonable state. */ | |
4795 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
4796 | ||
4797 | /* Generate COMMON blocks. */ | |
4798 | gfc_trans_common (ns); | |
4799 | ||
a961ca30 | 4800 | has_coarray_vars = false; |
4801 | ||
51d9479b | 4802 | /* Create decls for all the module variables. */ |
4803 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 4804 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 4805 | |
a961ca30 | 4806 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
4807 | generate_coarray_init (ns); | |
4808 | ||
51d9479b | 4809 | cur_module = NULL; |
4810 | ||
4811 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 4812 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 4813 | } |
4814 | ||
4815 | ||
4ee9c684 | 4816 | static void |
4817 | gfc_generate_contained_functions (gfc_namespace * parent) | |
4818 | { | |
4819 | gfc_namespace *ns; | |
4820 | ||
4821 | /* We create all the prototypes before generating any code. */ | |
4822 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4823 | { | |
4824 | /* Skip namespaces from used modules. */ | |
4825 | if (ns->parent != parent) | |
4826 | continue; | |
4827 | ||
d896f9b3 | 4828 | gfc_create_function_decl (ns, false); |
4ee9c684 | 4829 | } |
4830 | ||
4831 | for (ns = parent->contained; ns; ns = ns->sibling) | |
4832 | { | |
4833 | /* Skip namespaces from used modules. */ | |
4834 | if (ns->parent != parent) | |
4835 | continue; | |
4836 | ||
4837 | gfc_generate_function_code (ns); | |
4838 | } | |
4839 | } | |
4840 | ||
4841 | ||
d95efb59 | 4842 | /* Drill down through expressions for the array specification bounds and |
4843 | character length calling generate_local_decl for all those variables | |
4844 | that have not already been declared. */ | |
4845 | ||
4846 | static void | |
4847 | generate_local_decl (gfc_symbol *); | |
4848 | ||
1acb400a | 4849 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 4850 | |
1acb400a | 4851 | static bool |
4852 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
4853 | int *f ATTRIBUTE_UNUSED) | |
4854 | { | |
4855 | if (e->expr_type != EXPR_VARIABLE | |
4856 | || sym == e->symtree->n.sym | |
d95efb59 | 4857 | || e->symtree->n.sym->mark |
4858 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 4859 | return false; |
d95efb59 | 4860 | |
1acb400a | 4861 | generate_local_decl (e->symtree->n.sym); |
4862 | return false; | |
4863 | } | |
d95efb59 | 4864 | |
1acb400a | 4865 | static void |
4866 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
4867 | { | |
4868 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 4869 | } |
4870 | ||
4871 | ||
f6d0e37a | 4872 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 4873 | |
4874 | static void | |
4875 | generate_dependency_declarations (gfc_symbol *sym) | |
4876 | { | |
4877 | int i; | |
4878 | ||
4879 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 4880 | && sym->ts.u.cl |
4881 | && sym->ts.u.cl->length | |
4882 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
4883 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 4884 | |
4885 | if (sym->as && sym->as->rank) | |
4886 | { | |
4887 | for (i = 0; i < sym->as->rank; i++) | |
4888 | { | |
4889 | generate_expr_decls (sym, sym->as->lower[i]); | |
4890 | generate_expr_decls (sym, sym->as->upper[i]); | |
4891 | } | |
4892 | } | |
4893 | } | |
4894 | ||
4895 | ||
4ee9c684 | 4896 | /* Generate decls for all local variables. We do this to ensure correct |
4897 | handling of expressions which only appear in the specification of | |
4898 | other functions. */ | |
4899 | ||
4900 | static void | |
4901 | generate_local_decl (gfc_symbol * sym) | |
4902 | { | |
4903 | if (sym->attr.flavor == FL_VARIABLE) | |
4904 | { | |
a961ca30 | 4905 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
4906 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4907 | has_coarray_vars = true; | |
4908 | ||
d95efb59 | 4909 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 4910 | generate_dependency_declarations (sym); |
d95efb59 | 4911 | |
4ee9c684 | 4912 | if (sym->attr.referenced) |
8714fc76 | 4913 | gfc_get_symbol_decl (sym); |
4acad347 | 4914 | |
4915 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 4916 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 4917 | { |
4acad347 | 4918 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
4919 | if (gfc_option.warn_unused_dummy_argument | |
4920 | && sym->attr.intent == INTENT_OUT) | |
4921 | { | |
4922 | if (sym->ts.type != BT_DERIVED) | |
4923 | gfc_warning ("Dummy argument '%s' at %L was declared " | |
4924 | "INTENT(OUT) but was not set", sym->name, | |
4925 | &sym->declared_at); | |
48cb4748 | 4926 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
4927 | && !sym->ts.u.derived->attr.zero_comp) | |
4acad347 | 4928 | gfc_warning ("Derived-type dummy argument '%s' at %L was " |
4929 | "declared INTENT(OUT) but was not set and " | |
4930 | "does not have a default initializer", | |
4931 | sym->name, &sym->declared_at); | |
90a4a5a6 | 4932 | if (sym->backend_decl != NULL_TREE) |
4933 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 4934 | } |
4935 | else if (gfc_option.warn_unused_dummy_argument) | |
90a4a5a6 | 4936 | { |
4937 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
4acad347 | 4938 | &sym->declared_at); |
90a4a5a6 | 4939 | if (sym->backend_decl != NULL_TREE) |
4940 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4941 | } | |
7c0ca46e | 4942 | } |
4acad347 | 4943 | |
f888a3fb | 4944 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 4945 | block or a namelist. */ |
36609028 | 4946 | else if (warn_unused_variable |
1dbfac29 | 4947 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 4948 | { |
1dbfac29 | 4949 | if (sym->attr.use_only) |
4950 | { | |
4951 | gfc_warning ("Unused module variable '%s' which has been " | |
4952 | "explicitly imported at %L", sym->name, | |
4953 | &sym->declared_at); | |
4954 | if (sym->backend_decl != NULL_TREE) | |
4955 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4956 | } | |
4957 | else if (!sym->attr.use_assoc) | |
4958 | { | |
4959 | gfc_warning ("Unused variable '%s' declared at %L", | |
4960 | sym->name, &sym->declared_at); | |
4961 | if (sym->backend_decl != NULL_TREE) | |
4962 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4963 | } | |
90a4a5a6 | 4964 | } |
8714fc76 | 4965 | |
d4163395 | 4966 | /* For variable length CHARACTER parameters, the PARM_DECL already |
4967 | references the length variable, so force gfc_get_symbol_decl | |
4968 | even when not referenced. If optimize > 0, it will be optimized | |
4969 | away anyway. But do this only after emitting -Wunused-parameter | |
4970 | warning if requested. */ | |
8714fc76 | 4971 | if (sym->attr.dummy && !sym->attr.referenced |
4972 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 4973 | && sym->ts.u.cl->backend_decl != NULL |
4974 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 4975 | { |
4976 | sym->attr.referenced = 1; | |
4977 | gfc_get_symbol_decl (sym); | |
4978 | } | |
76776e6d | 4979 | |
d0163401 | 4980 | /* INTENT(out) dummy arguments and result variables with allocatable |
4981 | components are reset by default and need to be set referenced to | |
4982 | generate the code for nullification and automatic lengths. */ | |
4983 | if (!sym->attr.referenced | |
8714fc76 | 4984 | && sym->ts.type == BT_DERIVED |
eeebe20b | 4985 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 4986 | && !sym->attr.pointer |
d0163401 | 4987 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
4988 | || | |
4989 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 4990 | { |
4991 | sym->attr.referenced = 1; | |
4992 | gfc_get_symbol_decl (sym); | |
4993 | } | |
4994 | ||
e72f979a | 4995 | /* Check for dependencies in the array specification and string |
4996 | length, adding the necessary declarations to the function. We | |
4997 | mark the symbol now, as well as in traverse_ns, to prevent | |
4998 | getting stuck in a circular dependency. */ | |
4999 | sym->mark = 1; | |
4ee9c684 | 5000 | } |
5dd246c1 | 5001 | else if (sym->attr.flavor == FL_PARAMETER) |
5002 | { | |
6ecfe89d | 5003 | if (warn_unused_parameter |
f326eb81 | 5004 | && !sym->attr.referenced) |
5005 | { | |
5006 | if (!sym->attr.use_assoc) | |
5007 | gfc_warning ("Unused parameter '%s' declared at %L", sym->name, | |
5008 | &sym->declared_at); | |
5009 | else if (sym->attr.use_only) | |
5010 | gfc_warning ("Unused parameter '%s' which has been explicitly " | |
5011 | "imported at %L", sym->name, &sym->declared_at); | |
5012 | } | |
5dd246c1 | 5013 | } |
fa7b6574 | 5014 | else if (sym->attr.flavor == FL_PROCEDURE) |
5015 | { | |
5016 | /* TODO: move to the appropriate place in resolve.c. */ | |
5017 | if (warn_return_type | |
5018 | && sym->attr.function | |
5019 | && sym->result | |
5020 | && sym != sym->result | |
5021 | && !sym->result->attr.referenced | |
5022 | && !sym->attr.use_assoc | |
5023 | && sym->attr.if_source != IFSRC_IFBODY) | |
5024 | { | |
5025 | gfc_warning ("Return value '%s' of function '%s' declared at " | |
5026 | "%L not set", sym->result->name, sym->name, | |
5027 | &sym->result->declared_at); | |
5028 | ||
5029 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5030 | sym->result->mark = 1; |
fa7b6574 | 5031 | } |
5032 | } | |
c5d33754 | 5033 | |
19ba2ad8 | 5034 | if (sym->attr.dummy == 1) |
5035 | { | |
5036 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5037 | procedures if they are passed by value. The tree type for them will | |
5038 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5039 | what C would do with characters passed by-value. The value attribute | |
5040 | implies the dummy is a scalar. */ | |
5041 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5042 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5043 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5044 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5045 | |
5046 | /* Unused procedure passed as dummy argument. */ | |
5047 | if (sym->attr.flavor == FL_PROCEDURE) | |
5048 | { | |
5049 | if (!sym->attr.referenced) | |
5050 | { | |
5051 | if (gfc_option.warn_unused_dummy_argument) | |
5052 | gfc_warning ("Unused dummy argument '%s' at %L", sym->name, | |
a90fe829 | 5053 | &sym->declared_at); |
fc6338c7 | 5054 | } |
5055 | ||
5056 | /* Silence bogus "unused parameter" warnings from the | |
5057 | middle end. */ | |
5058 | if (sym->backend_decl != NULL_TREE) | |
5059 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5060 | } | |
19ba2ad8 | 5061 | } |
5062 | ||
c5d33754 | 5063 | /* Make sure we convert the types of the derived types from iso_c_binding |
5064 | into (void *). */ | |
5065 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5066 | && sym->ts.type == BT_DERIVED) | |
5067 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5068 | } |
5069 | ||
c40a5c1b | 5070 | |
5071 | static void | |
5072 | generate_local_nml_decl (gfc_symbol * sym) | |
5073 | { | |
5074 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5075 | { | |
5076 | tree decl = generate_namelist_decl (sym); | |
5077 | pushdecl (decl); | |
5078 | } | |
5079 | } | |
5080 | ||
5081 | ||
4ee9c684 | 5082 | static void |
5083 | generate_local_vars (gfc_namespace * ns) | |
5084 | { | |
5085 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5086 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5087 | } |
5088 | ||
5089 | ||
1b716045 | 5090 | /* Generate a switch statement to jump to the correct entry point. Also |
5091 | creates the label decls for the entry points. */ | |
4ee9c684 | 5092 | |
1b716045 | 5093 | static tree |
5094 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5095 | { |
1b716045 | 5096 | stmtblock_t block; |
5097 | tree label; | |
5098 | tree tmp; | |
5099 | tree val; | |
4ee9c684 | 5100 | |
1b716045 | 5101 | gfc_init_block (&block); |
5102 | for (; el; el = el->next) | |
5103 | { | |
5104 | /* Add the case label. */ | |
b797d6d3 | 5105 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5106 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5107 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5108 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5109 | |
1b716045 | 5110 | /* And jump to the actual entry point. */ |
5111 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5112 | tmp = build1_v (GOTO_EXPR, label); |
5113 | gfc_add_expr_to_block (&block, tmp); | |
5114 | ||
5115 | /* Save the label decl. */ | |
5116 | el->label = label; | |
5117 | } | |
5118 | tmp = gfc_finish_block (&block); | |
5119 | /* The first argument selects the entry point. */ | |
5120 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 5121 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
5122 | val, tmp, NULL_TREE); | |
1b716045 | 5123 | return tmp; |
4ee9c684 | 5124 | } |
5125 | ||
6374121b | 5126 | |
a4abf8a0 | 5127 | /* Add code to string lengths of actual arguments passed to a function against |
5128 | the expected lengths of the dummy arguments. */ | |
5129 | ||
5130 | static void | |
5131 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5132 | { | |
5133 | gfc_formal_arglist *formal; | |
5134 | ||
6777213b | 5135 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5136 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5137 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5138 | { |
5139 | enum tree_code comparison; | |
5140 | tree cond; | |
5141 | tree argname; | |
5142 | gfc_symbol *fsym; | |
5143 | gfc_charlen *cl; | |
5144 | const char *message; | |
5145 | ||
5146 | fsym = formal->sym; | |
eeebe20b | 5147 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5148 | |
5149 | gcc_assert (cl); | |
5150 | gcc_assert (cl->passed_length != NULL_TREE); | |
5151 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5152 | ||
5153 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5154 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5155 | that the actual string length is *at least* the expected one. |
5156 | Sequence association allows for a mismatch of the string length | |
5157 | if the actual argument is (part of) an array, but only if the | |
5158 | dummy argument is an array. (See "Sequence association" in | |
5159 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5160 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5161 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5162 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5163 | { |
5164 | comparison = NE_EXPR; | |
5165 | message = _("Actual string length does not match the declared one" | |
5166 | " for dummy argument '%s' (%ld/%ld)"); | |
5167 | } | |
be4be771 | 5168 | else if (fsym->as && fsym->as->rank != 0) |
5169 | continue; | |
a4abf8a0 | 5170 | else |
5171 | { | |
5172 | comparison = LT_EXPR; | |
5173 | message = _("Actual string length is shorter than the declared one" | |
5174 | " for dummy argument '%s' (%ld/%ld)"); | |
5175 | } | |
5176 | ||
5177 | /* Build the condition. For optional arguments, an actual length | |
5178 | of 0 is also acceptable if the associated string is NULL, which | |
5179 | means the argument was not passed. */ | |
fd779e1d | 5180 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
5181 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 5182 | if (fsym->attr.optional) |
5183 | { | |
5184 | tree not_absent; | |
5185 | tree not_0length; | |
5186 | tree absent_failed; | |
5187 | ||
fd779e1d | 5188 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
5189 | boolean_type_node, | |
5190 | cl->passed_length, | |
385f3f36 | 5191 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5192 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5193 | fsym->attr.referenced = 1; | |
5194 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5195 | |
fd779e1d | 5196 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
5197 | boolean_type_node, not_0length, | |
5198 | not_absent); | |
a4abf8a0 | 5199 | |
fd779e1d | 5200 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
5201 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 5202 | } |
5203 | ||
5204 | /* Build the runtime check. */ | |
5205 | argname = gfc_build_cstring_const (fsym->name); | |
5206 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5207 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5208 | message, argname, | |
5209 | fold_convert (long_integer_type_node, | |
5210 | cl->passed_length), | |
5211 | fold_convert (long_integer_type_node, | |
5212 | cl->backend_decl)); | |
5213 | } | |
5214 | } | |
5215 | ||
5216 | ||
7257a5d2 | 5217 | static void |
5218 | create_main_function (tree fndecl) | |
5219 | { | |
43702da6 | 5220 | tree old_context; |
7257a5d2 | 5221 | tree ftn_main; |
5222 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5223 | stmtblock_t body; | |
5224 | ||
43702da6 | 5225 | old_context = current_function_decl; |
5226 | ||
5227 | if (old_context) | |
5228 | { | |
5229 | push_function_context (); | |
5230 | saved_parent_function_decls = saved_function_decls; | |
5231 | saved_function_decls = NULL_TREE; | |
5232 | } | |
5233 | ||
7257a5d2 | 5234 | /* main() function must be declared with global scope. */ |
5235 | gcc_assert (current_function_decl == NULL_TREE); | |
5236 | ||
5237 | /* Declare the function. */ | |
5238 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5239 | build_pointer_type (pchar_type_node), | |
5240 | NULL_TREE); | |
0509d0ee | 5241 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5242 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5243 | main_identifier_node, tmp); | |
7257a5d2 | 5244 | DECL_EXTERNAL (ftn_main) = 0; |
5245 | TREE_PUBLIC (ftn_main) = 1; | |
5246 | TREE_STATIC (ftn_main) = 1; | |
5247 | DECL_ATTRIBUTES (ftn_main) | |
5248 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5249 | ||
5250 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5251 | result_decl = build_decl (input_location, |
5252 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5253 | DECL_ARTIFICIAL (result_decl) = 1; |
5254 | DECL_IGNORED_P (result_decl) = 1; | |
5255 | DECL_CONTEXT (result_decl) = ftn_main; | |
5256 | DECL_RESULT (ftn_main) = result_decl; | |
5257 | ||
5258 | pushdecl (ftn_main); | |
5259 | ||
5260 | /* Get the arguments. */ | |
5261 | ||
5262 | arglist = NULL_TREE; | |
5263 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5264 | ||
5265 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5266 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5267 | DECL_CONTEXT (argc) = ftn_main; |
5268 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5269 | TREE_READONLY (argc) = 1; | |
5270 | gfc_finish_decl (argc); | |
5271 | arglist = chainon (arglist, argc); | |
5272 | ||
5273 | typelist = TREE_CHAIN (typelist); | |
5274 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5275 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5276 | DECL_CONTEXT (argv) = ftn_main; |
5277 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5278 | TREE_READONLY (argv) = 1; | |
5279 | DECL_BY_REFERENCE (argv) = 1; | |
5280 | gfc_finish_decl (argv); | |
5281 | arglist = chainon (arglist, argv); | |
5282 | ||
5283 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5284 | current_function_decl = ftn_main; | |
5285 | announce_function (ftn_main); | |
5286 | ||
5287 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5288 | make_decl_rtl (ftn_main); | |
00cf115c | 5289 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5290 | pushlevel (); |
7257a5d2 | 5291 | |
5292 | gfc_init_block (&body); | |
5293 | ||
5294 | /* Call some libgfortran initialization routines, call then MAIN__(). */ | |
5295 | ||
d44f2f7c | 5296 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
70b5944a | 5297 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) |
5298 | { | |
5299 | tree pint_type, pppchar_type; | |
5300 | pint_type = build_pointer_type (integer_type_node); | |
5301 | pppchar_type | |
5302 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5303 | ||
d44f2f7c | 5304 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5305 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5306 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5307 | gfc_add_expr_to_block (&body, tmp); |
5308 | } | |
5309 | ||
7257a5d2 | 5310 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5311 | TREE_USED (argc) = 1; |
5312 | TREE_USED (argv) = 1; | |
389dd41b | 5313 | tmp = build_call_expr_loc (input_location, |
5314 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5315 | gfc_add_expr_to_block (&body, tmp); |
5316 | ||
5317 | /* Add a call to set_options to set up the runtime library Fortran | |
5318 | language standard parameters. */ | |
5319 | { | |
5320 | tree array_type, array, var; | |
f1f41a6c | 5321 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5322 | |
5323 | /* Passing a new option to the library requires four modifications: | |
5324 | + add it to the tree_cons list below | |
5325 | + change the array size in the call to build_array_type | |
5326 | + change the first argument to the library call | |
5327 | gfor_fndecl_set_options | |
5328 | + modify the library (runtime/compile_options.c)! */ | |
5329 | ||
06f13dc1 | 5330 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5331 | build_int_cst (integer_type_node, | |
5332 | gfc_option.warn_std)); | |
5333 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5334 | build_int_cst (integer_type_node, | |
5335 | gfc_option.allow_std)); | |
5336 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5337 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5338 | /* TODO: This is the old -fdump-core option, which is unused but |
5339 | passed due to ABI compatibility; remove when bumping the | |
5340 | library ABI. */ | |
06f13dc1 | 5341 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5342 | build_int_cst (integer_type_node, | |
b2130263 | 5343 | 0)); |
06f13dc1 | 5344 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5345 | build_int_cst (integer_type_node, | |
5346 | gfc_option.flag_backtrace)); | |
5347 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5348 | build_int_cst (integer_type_node, | |
5349 | gfc_option.flag_sign_zero)); | |
5350 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5351 | build_int_cst (integer_type_node, | |
5352 | (gfc_option.rtcheck | |
5353 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5354 | /* TODO: This is the -frange-check option, which no longer affects |
5355 | library behavior; when bumping the library ABI this slot can be | |
5356 | reused for something else. As it is the last element in the | |
553e7cef | 5357 | array, we can instead leave it out altogether. */ |
5358 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5359 | build_int_cst (integer_type_node, 0)); | |
06f13dc1 | 5360 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5361 | build_int_cst (integer_type_node, | |
553e7cef | 5362 | gfc_option.fpe_summary)); |
7257a5d2 | 5363 | |
5364 | array_type = build_array_type (integer_type_node, | |
553e7cef | 5365 | build_index_type (size_int (8))); |
06f13dc1 | 5366 | array = build_constructor (array_type, v); |
7257a5d2 | 5367 | TREE_CONSTANT (array) = 1; |
5368 | TREE_STATIC (array) = 1; | |
5369 | ||
5370 | /* Create a static variable to hold the jump table. */ | |
5371 | var = gfc_create_var (array_type, "options"); | |
5372 | TREE_CONSTANT (var) = 1; | |
5373 | TREE_STATIC (var) = 1; | |
5374 | TREE_READONLY (var) = 1; | |
5375 | DECL_INITIAL (var) = array; | |
5376 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); | |
5377 | ||
389dd41b | 5378 | tmp = build_call_expr_loc (input_location, |
5379 | gfor_fndecl_set_options, 2, | |
553e7cef | 5380 | build_int_cst (integer_type_node, 9), var); |
7257a5d2 | 5381 | gfc_add_expr_to_block (&body, tmp); |
5382 | } | |
5383 | ||
5384 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5385 | the library will raise a FPE when needed. */ | |
5386 | if (gfc_option.fpe != 0) | |
5387 | { | |
389dd41b | 5388 | tmp = build_call_expr_loc (input_location, |
5389 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5390 | build_int_cst (integer_type_node, |
5391 | gfc_option.fpe)); | |
5392 | gfc_add_expr_to_block (&body, tmp); | |
5393 | } | |
5394 | ||
5395 | /* If this is the main program and an -fconvert option was provided, | |
5396 | add a call to set_convert. */ | |
5397 | ||
5398 | if (gfc_option.convert != GFC_CONVERT_NATIVE) | |
5399 | { | |
389dd41b | 5400 | tmp = build_call_expr_loc (input_location, |
5401 | gfor_fndecl_set_convert, 1, | |
7257a5d2 | 5402 | build_int_cst (integer_type_node, |
5403 | gfc_option.convert)); | |
5404 | gfc_add_expr_to_block (&body, tmp); | |
5405 | } | |
5406 | ||
5407 | /* If this is the main program and an -frecord-marker option was provided, | |
5408 | add a call to set_record_marker. */ | |
5409 | ||
5410 | if (gfc_option.record_marker != 0) | |
5411 | { | |
389dd41b | 5412 | tmp = build_call_expr_loc (input_location, |
5413 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5414 | build_int_cst (integer_type_node, |
5415 | gfc_option.record_marker)); | |
5416 | gfc_add_expr_to_block (&body, tmp); | |
5417 | } | |
5418 | ||
5419 | if (gfc_option.max_subrecord_length != 0) | |
5420 | { | |
389dd41b | 5421 | tmp = build_call_expr_loc (input_location, |
5422 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5423 | build_int_cst (integer_type_node, |
5424 | gfc_option.max_subrecord_length)); | |
5425 | gfc_add_expr_to_block (&body, tmp); | |
5426 | } | |
5427 | ||
5428 | /* Call MAIN__(). */ | |
389dd41b | 5429 | tmp = build_call_expr_loc (input_location, |
5430 | fndecl, 0); | |
7257a5d2 | 5431 | gfc_add_expr_to_block (&body, tmp); |
5432 | ||
43702da6 | 5433 | /* Mark MAIN__ as used. */ |
5434 | TREE_USED (fndecl) = 1; | |
5435 | ||
70b5944a | 5436 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
5437 | if (gfc_option.coarray == GFC_FCOARRAY_LIB) | |
a90fe829 | 5438 | { |
70b5944a | 5439 | /* Per F2008, 8.5.1 END of the main program implies a |
a90fe829 | 5440 | SYNC MEMORY. */ |
b9a16870 | 5441 | tmp = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
70b5944a | 5442 | tmp = build_call_expr_loc (input_location, tmp, 0); |
5443 | gfc_add_expr_to_block (&body, tmp); | |
5444 | ||
5445 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); | |
5446 | gfc_add_expr_to_block (&body, tmp); | |
5447 | } | |
5448 | ||
7257a5d2 | 5449 | /* "return 0". */ |
fd779e1d | 5450 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5451 | DECL_RESULT (ftn_main), | |
5452 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5453 | tmp = build1_v (RETURN_EXPR, tmp); |
5454 | gfc_add_expr_to_block (&body, tmp); | |
5455 | ||
5456 | ||
5457 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5458 | decl = getdecls (); | |
5459 | ||
5460 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5461 | poplevel (1, 1); |
7257a5d2 | 5462 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5463 | ||
5464 | DECL_SAVED_TREE (ftn_main) | |
5465 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5466 | DECL_INITIAL (ftn_main)); | |
5467 | ||
5468 | /* Output the GENERIC tree. */ | |
5469 | dump_function (TDI_original, ftn_main); | |
5470 | ||
bb982f66 | 5471 | cgraph_finalize_function (ftn_main, true); |
43702da6 | 5472 | |
5473 | if (old_context) | |
5474 | { | |
5475 | pop_function_context (); | |
5476 | saved_function_decls = saved_parent_function_decls; | |
5477 | } | |
5478 | current_function_decl = old_context; | |
7257a5d2 | 5479 | } |
5480 | ||
5481 | ||
89ac8ba1 | 5482 | /* Get the result expression for a procedure. */ |
5483 | ||
5484 | static tree | |
5485 | get_proc_result (gfc_symbol* sym) | |
5486 | { | |
5487 | if (sym->attr.subroutine || sym == sym->result) | |
5488 | { | |
5489 | if (current_fake_result_decl != NULL) | |
5490 | return TREE_VALUE (current_fake_result_decl); | |
5491 | ||
5492 | return NULL_TREE; | |
5493 | } | |
5494 | ||
5495 | return sym->result->backend_decl; | |
5496 | } | |
5497 | ||
5498 | ||
5499 | /* Generate an appropriate return-statement for a procedure. */ | |
5500 | ||
5501 | tree | |
5502 | gfc_generate_return (void) | |
5503 | { | |
5504 | gfc_symbol* sym; | |
5505 | tree result; | |
5506 | tree fndecl; | |
5507 | ||
5508 | sym = current_procedure_symbol; | |
5509 | fndecl = sym->backend_decl; | |
5510 | ||
5511 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5512 | result = NULL_TREE; | |
5513 | else | |
5514 | { | |
5515 | result = get_proc_result (sym); | |
5516 | ||
5517 | /* Set the return value to the dummy result variable. The | |
5518 | types may be different for scalar default REAL functions | |
5519 | with -ff2c, therefore we have to convert. */ | |
5520 | if (result != NULL_TREE) | |
5521 | { | |
5522 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5523 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5524 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5525 | result); | |
89ac8ba1 | 5526 | } |
5527 | } | |
5528 | ||
5529 | return build1_v (RETURN_EXPR, result); | |
5530 | } | |
5531 | ||
5532 | ||
4ee9c684 | 5533 | /* Generate code for a function. */ |
5534 | ||
5535 | void | |
5536 | gfc_generate_function_code (gfc_namespace * ns) | |
5537 | { | |
5538 | tree fndecl; | |
5539 | tree old_context; | |
5540 | tree decl; | |
5541 | tree tmp; | |
89ac8ba1 | 5542 | stmtblock_t init, cleanup; |
4ee9c684 | 5543 | stmtblock_t body; |
89ac8ba1 | 5544 | gfc_wrapped_block try_block; |
5fa0fdc2 | 5545 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 5546 | gfc_symbol *sym; |
89ac8ba1 | 5547 | gfc_symbol *previous_procedure_symbol; |
2294b616 | 5548 | int rank; |
e50e62f5 | 5549 | bool is_recursive; |
4ee9c684 | 5550 | |
5551 | sym = ns->proc_name; | |
89ac8ba1 | 5552 | previous_procedure_symbol = current_procedure_symbol; |
5553 | current_procedure_symbol = sym; | |
1b716045 | 5554 | |
4ee9c684 | 5555 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 5556 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 5557 | sym->tlink = sym; |
5558 | ||
5559 | /* Create the declaration for functions with global scope. */ | |
5560 | if (!sym->backend_decl) | |
d896f9b3 | 5561 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5562 | |
5563 | fndecl = sym->backend_decl; | |
5564 | old_context = current_function_decl; | |
5565 | ||
5566 | if (old_context) | |
5567 | { | |
5568 | push_function_context (); | |
5569 | saved_parent_function_decls = saved_function_decls; | |
5570 | saved_function_decls = NULL_TREE; | |
5571 | } | |
5572 | ||
1b716045 | 5573 | trans_function_start (sym); |
4ee9c684 | 5574 | |
89ac8ba1 | 5575 | gfc_init_block (&init); |
4ee9c684 | 5576 | |
c6871095 | 5577 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
5578 | { | |
5579 | /* Copy length backend_decls to all entry point result | |
5580 | symbols. */ | |
5581 | gfc_entry_list *el; | |
5582 | tree backend_decl; | |
5583 | ||
eeebe20b | 5584 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
5585 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 5586 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 5587 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 5588 | } |
5589 | ||
4ee9c684 | 5590 | /* Translate COMMON blocks. */ |
5591 | gfc_trans_common (ns); | |
5592 | ||
c750cc52 | 5593 | /* Null the parent fake result declaration if this namespace is |
5594 | a module function or an external procedures. */ | |
5595 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5596 | || ns->parent == NULL) | |
5597 | parent_fake_result_decl = NULL_TREE; | |
5598 | ||
2b685f8e | 5599 | gfc_generate_contained_functions (ns); |
5600 | ||
9579733e | 5601 | nonlocal_dummy_decls = NULL; |
5602 | nonlocal_dummy_decl_pset = NULL; | |
5603 | ||
a961ca30 | 5604 | has_coarray_vars = false; |
4ee9c684 | 5605 | generate_local_vars (ns); |
5b11d932 | 5606 | |
a961ca30 | 5607 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5608 | generate_coarray_init (ns); | |
5609 | ||
c750cc52 | 5610 | /* Keep the parent fake result declaration in module functions |
5611 | or external procedures. */ | |
5612 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
5613 | || ns->parent == NULL) | |
5614 | current_fake_result_decl = parent_fake_result_decl; | |
5615 | else | |
5616 | current_fake_result_decl = NULL_TREE; | |
5617 | ||
89ac8ba1 | 5618 | is_recursive = sym->attr.recursive |
5619 | || (sym->attr.entry_master | |
5620 | && sym->ns->entries->sym->attr.recursive); | |
5621 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5622 | && !is_recursive | |
5623 | && !gfc_option.flag_recursive) | |
5624 | { | |
5625 | char * msg; | |
5626 | ||
5627 | asprintf (&msg, "Recursive call to nonrecursive procedure '%s'", | |
5628 | sym->name); | |
5629 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); | |
5630 | TREE_STATIC (recurcheckvar) = 1; | |
5631 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
5632 | gfc_add_expr_to_block (&init, recurcheckvar); | |
5633 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
5634 | &sym->declared_at, msg); | |
5635 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 5636 | free (msg); |
89ac8ba1 | 5637 | } |
4ee9c684 | 5638 | |
5639 | /* Now generate the code for the body of this function. */ | |
5640 | gfc_init_block (&body); | |
5641 | ||
5642 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 5643 | && sym->attr.subroutine) |
4ee9c684 | 5644 | { |
5645 | tree alternate_return; | |
c750cc52 | 5646 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 5647 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 5648 | } |
5649 | ||
1b716045 | 5650 | if (ns->entries) |
5651 | { | |
5652 | /* Jump to the correct entry point. */ | |
5653 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
5654 | gfc_add_expr_to_block (&body, tmp); | |
5655 | } | |
5656 | ||
a4abf8a0 | 5657 | /* If bounds-checking is enabled, generate code to check passed in actual |
5658 | arguments against the expected dummy argument attributes (e.g. string | |
5659 | lengths). */ | |
c1630d65 | 5660 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 5661 | add_argument_checking (&body, sym); |
5662 | ||
4ee9c684 | 5663 | tmp = gfc_trans_code (ns->code); |
5664 | gfc_add_expr_to_block (&body, tmp); | |
5665 | ||
4ee9c684 | 5666 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node) |
5667 | { | |
89ac8ba1 | 5668 | tree result = get_proc_result (sym); |
4ee9c684 | 5669 | |
42766cb3 | 5670 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 5671 | { |
deb7edfc | 5672 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
5673 | && sym->result == sym) | |
5674 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
5675 | null_pointer_node)); | |
42766cb3 | 5676 | else if (sym->ts.type == BT_CLASS |
5677 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 5678 | && CLASS_DATA (sym)->attr.dimension == 0 |
5679 | && sym->result == sym) | |
42766cb3 | 5680 | { |
5681 | tmp = CLASS_DATA (sym)->backend_decl; | |
5682 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
5683 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
5684 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
5685 | null_pointer_node)); | |
5686 | } | |
deb7edfc | 5687 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 5688 | && sym->ts.u.derived->attr.alloc_comp |
5689 | && !sym->attr.allocatable) | |
53169279 | 5690 | { |
5691 | rank = sym->as ? sym->as->rank : 0; | |
89ac8ba1 | 5692 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, result, rank); |
5693 | gfc_add_expr_to_block (&init, tmp); | |
53169279 | 5694 | } |
5176859a | 5695 | } |
e50e62f5 | 5696 | |
fa7b6574 | 5697 | if (result == NULL_TREE) |
5698 | { | |
5699 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 5700 | if (warn_return_type && sym == sym->result) |
fa7b6574 | 5701 | gfc_warning ("Return value of function '%s' at %L not set", |
5702 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5703 | if (warn_return_type) |
5704 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 5705 | } |
4ee9c684 | 5706 | else |
89ac8ba1 | 5707 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 5708 | } |
89ac8ba1 | 5709 | |
5710 | gfc_init_block (&cleanup); | |
5711 | ||
5712 | /* Reset recursion-check variable. */ | |
5713 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
5714 | && !is_recursive | |
5ae82d58 | 5715 | && !gfc_option.gfc_flag_openmp |
89ac8ba1 | 5716 | && recurcheckvar != NULL_TREE) |
e50e62f5 | 5717 | { |
89ac8ba1 | 5718 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
5719 | recurcheckvar = NULL; | |
e50e62f5 | 5720 | } |
2294b616 | 5721 | |
89ac8ba1 | 5722 | /* Finish the function body and add init and cleanup code. */ |
5723 | tmp = gfc_finish_block (&body); | |
5724 | gfc_start_wrapped_block (&try_block, tmp); | |
5725 | /* Add code to create and cleanup arrays. */ | |
5726 | gfc_trans_deferred_vars (sym, &try_block); | |
5727 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
5728 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 5729 | |
5730 | /* Add all the decls we created during processing. */ | |
5731 | decl = saved_function_decls; | |
5732 | while (decl) | |
5733 | { | |
5734 | tree next; | |
5735 | ||
1767a056 | 5736 | next = DECL_CHAIN (decl); |
5737 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 5738 | pushdecl (decl); |
4ee9c684 | 5739 | decl = next; |
5740 | } | |
5741 | saved_function_decls = NULL_TREE; | |
5742 | ||
89ac8ba1 | 5743 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 5744 | decl = getdecls (); |
4ee9c684 | 5745 | |
5746 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5747 | poplevel (1, 1); |
4ee9c684 | 5748 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5749 | ||
e5004242 | 5750 | DECL_SAVED_TREE (fndecl) |
5751 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5752 | DECL_INITIAL (fndecl)); | |
5753 | ||
9579733e | 5754 | if (nonlocal_dummy_decls) |
5755 | { | |
5756 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
5757 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
5758 | pointer_set_destroy (nonlocal_dummy_decl_pset); | |
5759 | nonlocal_dummy_decls = NULL; | |
5760 | nonlocal_dummy_decl_pset = NULL; | |
5761 | } | |
5762 | ||
4ee9c684 | 5763 | /* Output the GENERIC tree. */ |
5764 | dump_function (TDI_original, fndecl); | |
5765 | ||
5766 | /* Store the end of the function, so that we get good line number | |
5767 | info for the epilogue. */ | |
5768 | cfun->function_end_locus = input_location; | |
5769 | ||
5770 | /* We're leaving the context of this function, so zap cfun. | |
5771 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
5772 | tree_rest_of_compilation. */ | |
87d4aa85 | 5773 | set_cfun (NULL); |
4ee9c684 | 5774 | |
5775 | if (old_context) | |
5776 | { | |
5777 | pop_function_context (); | |
5778 | saved_function_decls = saved_parent_function_decls; | |
5779 | } | |
5780 | current_function_decl = old_context; | |
5781 | ||
1f7747bd | 5782 | if (decl_function_context (fndecl)) |
5783 | { | |
5784 | /* Register this function with cgraph just far enough to get it | |
5785 | added to our parent's nested function list. | |
5786 | If there are static coarrays in this function, the nested _caf_init | |
5787 | function has already called cgraph_create_node, which also created | |
5788 | the cgraph node for this function. */ | |
5789 | if (!has_coarray_vars || gfc_option.coarray != GFC_FCOARRAY_LIB) | |
5790 | (void) cgraph_create_node (fndecl); | |
5791 | } | |
4ee9c684 | 5792 | else |
bb982f66 | 5793 | cgraph_finalize_function (fndecl, true); |
df4d540f | 5794 | |
5795 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5796 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 5797 | |
5798 | if (sym->attr.is_main_program) | |
5799 | create_main_function (fndecl); | |
89ac8ba1 | 5800 | |
5801 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 5802 | } |
5803 | ||
7257a5d2 | 5804 | |
4ee9c684 | 5805 | void |
5806 | gfc_generate_constructors (void) | |
5807 | { | |
22d678e8 | 5808 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 5809 | #if 0 |
5810 | tree fnname; | |
5811 | tree type; | |
5812 | tree fndecl; | |
5813 | tree decl; | |
5814 | tree tmp; | |
5815 | ||
5816 | if (gfc_static_ctors == NULL_TREE) | |
5817 | return; | |
5818 | ||
db85cc4f | 5819 | fnname = get_file_function_name ("I"); |
e1036019 | 5820 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 5821 | |
e60a6f7b | 5822 | fndecl = build_decl (input_location, |
5823 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 5824 | TREE_PUBLIC (fndecl) = 1; |
5825 | ||
e60a6f7b | 5826 | decl = build_decl (input_location, |
5827 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 5828 | DECL_ARTIFICIAL (decl) = 1; |
5829 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 5830 | DECL_CONTEXT (decl) = fndecl; |
5831 | DECL_RESULT (fndecl) = decl; | |
5832 | ||
5833 | pushdecl (fndecl); | |
5834 | ||
5835 | current_function_decl = fndecl; | |
5836 | ||
b2c4af5e | 5837 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 5838 | |
b2c4af5e | 5839 | make_decl_rtl (fndecl); |
4ee9c684 | 5840 | |
00cf115c | 5841 | allocate_struct_function (fndecl, false); |
4ee9c684 | 5842 | |
cde2be84 | 5843 | pushlevel (); |
4ee9c684 | 5844 | |
5845 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
5846 | { | |
389dd41b | 5847 | tmp = build_call_expr_loc (input_location, |
5848 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 5849 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 5850 | } |
5851 | ||
e5004242 | 5852 | decl = getdecls (); |
cde2be84 | 5853 | poplevel (1, 1); |
4ee9c684 | 5854 | |
5855 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 5856 | DECL_SAVED_TREE (fndecl) |
5857 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5858 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 5859 | |
5860 | free_after_parsing (cfun); | |
5861 | free_after_compilation (cfun); | |
5862 | ||
6148a911 | 5863 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 5864 | |
5865 | current_function_decl = NULL_TREE; | |
5866 | #endif | |
5867 | } | |
5868 | ||
9ec7c303 | 5869 | /* Translates a BLOCK DATA program unit. This means emitting the |
5870 | commons contained therein plus their initializations. We also emit | |
5871 | a globally visible symbol to make sure that each BLOCK DATA program | |
5872 | unit remains unique. */ | |
5873 | ||
5874 | void | |
5875 | gfc_generate_block_data (gfc_namespace * ns) | |
5876 | { | |
5877 | tree decl; | |
5878 | tree id; | |
5879 | ||
b31f705b | 5880 | /* Tell the backend the source location of the block data. */ |
5881 | if (ns->proc_name) | |
5882 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
5883 | else | |
5884 | gfc_set_backend_locus (&gfc_current_locus); | |
5885 | ||
5886 | /* Process the DATA statements. */ | |
9ec7c303 | 5887 | gfc_trans_common (ns); |
5888 | ||
b31f705b | 5889 | /* Create a global symbol with the mane of the block data. This is to |
5890 | generate linker errors if the same name is used twice. It is never | |
5891 | really used. */ | |
9ec7c303 | 5892 | if (ns->proc_name) |
5893 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
5894 | else | |
5895 | id = get_identifier ("__BLOCK_DATA__"); | |
5896 | ||
e60a6f7b | 5897 | decl = build_decl (input_location, |
5898 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 5899 | TREE_PUBLIC (decl) = 1; |
5900 | TREE_STATIC (decl) = 1; | |
df4d540f | 5901 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 5902 | |
5903 | pushdecl (decl); | |
5904 | rest_of_decl_compilation (decl, 1, 0); | |
5905 | } | |
5906 | ||
b549d2a5 | 5907 | |
6a7084d7 | 5908 | /* Process the local variables of a BLOCK construct. */ |
5909 | ||
5910 | void | |
3c82e013 | 5911 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 5912 | { |
5913 | tree decl; | |
5914 | ||
5915 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 5916 | has_coarray_vars = false; |
5917 | ||
6a7084d7 | 5918 | generate_local_vars (ns); |
5919 | ||
a961ca30 | 5920 | if (gfc_option.coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
5921 | generate_coarray_init (ns); | |
5922 | ||
6a7084d7 | 5923 | decl = saved_local_decls; |
5924 | while (decl) | |
5925 | { | |
5926 | tree next; | |
5927 | ||
1767a056 | 5928 | next = DECL_CHAIN (decl); |
5929 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 5930 | pushdecl (decl); |
5931 | decl = next; | |
5932 | } | |
5933 | saved_local_decls = NULL_TREE; | |
5934 | } | |
5935 | ||
5936 | ||
4ee9c684 | 5937 | #include "gt-fortran-trans-decl.h" |