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ad321293 MM |
1 | /* Perform the semantic phase of parsing, i.e., the process of |
2 | building tree structure, checking semantic consistency, and | |
3 | building RTL. These routines are used both during actual parsing | |
c8094d83 | 4 | and during the instantiation of template functions. |
ad321293 | 5 | |
5624e564 | 6 | Copyright (C) 1998-2015 Free Software Foundation, Inc. |
ad321293 | 7 | Written by Mark Mitchell (mmitchell@usa.net) based on code found |
c8094d83 | 8 | formerly in parse.y and pt.c. |
ad321293 | 9 | |
f5adbb8d | 10 | This file is part of GCC. |
ad321293 | 11 | |
f5adbb8d | 12 | GCC is free software; you can redistribute it and/or modify it |
ad321293 | 13 | under the terms of the GNU General Public License as published by |
e77f031d | 14 | the Free Software Foundation; either version 3, or (at your option) |
ad321293 | 15 | any later version. |
c8094d83 | 16 | |
f5adbb8d | 17 | GCC is distributed in the hope that it will be useful, but |
ad321293 MM |
18 | WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | General Public License for more details. | |
c8094d83 | 21 | |
e77f031d NC |
22 | You should have received a copy of the GNU General Public License |
23 | along with GCC; see the file COPYING3. If not see | |
24 | <http://www.gnu.org/licenses/>. */ | |
ad321293 MM |
25 | |
26 | #include "config.h" | |
8d052bc7 | 27 | #include "system.h" |
4977bab6 ZW |
28 | #include "coretypes.h" |
29 | #include "tm.h" | |
40e23961 MC |
30 | #include "hash-set.h" |
31 | #include "machmode.h" | |
32 | #include "vec.h" | |
33 | #include "double-int.h" | |
34 | #include "input.h" | |
35 | #include "alias.h" | |
36 | #include "symtab.h" | |
37 | #include "wide-int.h" | |
38 | #include "inchash.h" | |
ad321293 | 39 | #include "tree.h" |
d8a2d370 DN |
40 | #include "stmt.h" |
41 | #include "varasm.h" | |
42 | #include "stor-layout.h" | |
43 | #include "stringpool.h" | |
ad321293 | 44 | #include "cp-tree.h" |
39dabefd | 45 | #include "c-family/c-common.h" |
61d3ce20 | 46 | #include "c-family/c-objc.h" |
25af8512 | 47 | #include "tree-inline.h" |
9b6ab3c0 | 48 | #include "intl.h" |
12027a89 | 49 | #include "toplev.h" |
84df082b | 50 | #include "flags.h" |
ea11ca7e | 51 | #include "timevar.h" |
6de9cd9a | 52 | #include "diagnostic.h" |
c582198b AM |
53 | #include "hash-map.h" |
54 | #include "is-a.h" | |
55 | #include "plugin-api.h" | |
c582198b AM |
56 | #include "hard-reg-set.h" |
57 | #include "input.h" | |
58 | #include "function.h" | |
59 | #include "ipa-ref.h" | |
8cd2462c | 60 | #include "cgraph.h" |
325c3691 | 61 | #include "tree-iterator.h" |
44d10c10 | 62 | #include "target.h" |
2fb9a547 | 63 | #include "hash-table.h" |
45b0be94 | 64 | #include "gimplify.h" |
7a8cba34 | 65 | #include "bitmap.h" |
0645c1a2 | 66 | #include "omp-low.h" |
9b2b7279 | 67 | #include "builtins.h" |
9a771876 | 68 | #include "convert.h" |
ad321293 MM |
69 | |
70 | /* There routines provide a modular interface to perform many parsing | |
71 | operations. They may therefore be used during actual parsing, or | |
72 | during template instantiation, which may be regarded as a | |
0b4d5576 | 73 | degenerate form of parsing. */ |
ad321293 | 74 | |
3a978d72 | 75 | static tree maybe_convert_cond (tree); |
6de9cd9a | 76 | static tree finalize_nrv_r (tree *, int *, void *); |
d5f4eddd | 77 | static tree capture_decltype (tree); |
4985cde3 | 78 | |
558475f0 | 79 | |
8d241e0b KL |
80 | /* Deferred Access Checking Overview |
81 | --------------------------------- | |
82 | ||
83 | Most C++ expressions and declarations require access checking | |
84 | to be performed during parsing. However, in several cases, | |
85 | this has to be treated differently. | |
86 | ||
87 | For member declarations, access checking has to be deferred | |
88 | until more information about the declaration is known. For | |
89 | example: | |
90 | ||
91 | class A { | |
0cbd7506 | 92 | typedef int X; |
8d241e0b | 93 | public: |
0cbd7506 | 94 | X f(); |
8d241e0b KL |
95 | }; |
96 | ||
97 | A::X A::f(); | |
98 | A::X g(); | |
99 | ||
100 | When we are parsing the function return type `A::X', we don't | |
101 | really know if this is allowed until we parse the function name. | |
102 | ||
103 | Furthermore, some contexts require that access checking is | |
104 | never performed at all. These include class heads, and template | |
105 | instantiations. | |
106 | ||
107 | Typical use of access checking functions is described here: | |
c8094d83 | 108 | |
8d241e0b KL |
109 | 1. When we enter a context that requires certain access checking |
110 | mode, the function `push_deferring_access_checks' is called with | |
111 | DEFERRING argument specifying the desired mode. Access checking | |
112 | may be performed immediately (dk_no_deferred), deferred | |
113 | (dk_deferred), or not performed (dk_no_check). | |
114 | ||
115 | 2. When a declaration such as a type, or a variable, is encountered, | |
116 | the function `perform_or_defer_access_check' is called. It | |
9771b263 | 117 | maintains a vector of all deferred checks. |
8d241e0b KL |
118 | |
119 | 3. The global `current_class_type' or `current_function_decl' is then | |
120 | setup by the parser. `enforce_access' relies on these information | |
121 | to check access. | |
122 | ||
123 | 4. Upon exiting the context mentioned in step 1, | |
124 | `perform_deferred_access_checks' is called to check all declaration | |
9771b263 | 125 | stored in the vector. `pop_deferring_access_checks' is then |
8d241e0b KL |
126 | called to restore the previous access checking mode. |
127 | ||
128 | In case of parsing error, we simply call `pop_deferring_access_checks' | |
129 | without `perform_deferred_access_checks'. */ | |
130 | ||
d1b38208 | 131 | typedef struct GTY(()) deferred_access { |
9771b263 | 132 | /* A vector representing name-lookups for which we have deferred |
3e1f1ba5 NS |
133 | checking access controls. We cannot check the accessibility of |
134 | names used in a decl-specifier-seq until we know what is being | |
135 | declared because code like: | |
136 | ||
c8094d83 | 137 | class A { |
0cbd7506 MS |
138 | class B {}; |
139 | B* f(); | |
3e1f1ba5 NS |
140 | } |
141 | ||
142 | A::B* A::f() { return 0; } | |
143 | ||
d6b418fa | 144 | is valid, even though `A::B' is not generally accessible. */ |
9771b263 | 145 | vec<deferred_access_check, va_gc> * GTY(()) deferred_access_checks; |
c8094d83 | 146 | |
3e1f1ba5 NS |
147 | /* The current mode of access checks. */ |
148 | enum deferring_kind deferring_access_checks_kind; | |
c8094d83 | 149 | |
3e1f1ba5 | 150 | } deferred_access; |
3e1f1ba5 | 151 | |
cf22909c | 152 | /* Data for deferred access checking. */ |
9771b263 | 153 | static GTY(()) vec<deferred_access, va_gc> *deferred_access_stack; |
3e1f1ba5 | 154 | static GTY(()) unsigned deferred_access_no_check; |
cf22909c KL |
155 | |
156 | /* Save the current deferred access states and start deferred | |
157 | access checking iff DEFER_P is true. */ | |
158 | ||
572c2b17 AP |
159 | void |
160 | push_deferring_access_checks (deferring_kind deferring) | |
cf22909c | 161 | { |
78757caa KL |
162 | /* For context like template instantiation, access checking |
163 | disabling applies to all nested context. */ | |
3e1f1ba5 NS |
164 | if (deferred_access_no_check || deferring == dk_no_check) |
165 | deferred_access_no_check++; | |
cf22909c | 166 | else |
3e1f1ba5 | 167 | { |
f32682ca | 168 | deferred_access e = {NULL, deferring}; |
9771b263 | 169 | vec_safe_push (deferred_access_stack, e); |
3e1f1ba5 | 170 | } |
cf22909c KL |
171 | } |
172 | ||
0ef08a81 JM |
173 | /* Save the current deferred access states and start deferred access |
174 | checking, continuing the set of deferred checks in CHECKS. */ | |
175 | ||
176 | void | |
177 | reopen_deferring_access_checks (vec<deferred_access_check, va_gc> * checks) | |
178 | { | |
179 | push_deferring_access_checks (dk_deferred); | |
180 | if (!deferred_access_no_check) | |
181 | deferred_access_stack->last().deferred_access_checks = checks; | |
182 | } | |
183 | ||
cf22909c KL |
184 | /* Resume deferring access checks again after we stopped doing |
185 | this previously. */ | |
186 | ||
572c2b17 AP |
187 | void |
188 | resume_deferring_access_checks (void) | |
cf22909c | 189 | { |
3e1f1ba5 | 190 | if (!deferred_access_no_check) |
9771b263 | 191 | deferred_access_stack->last().deferring_access_checks_kind = dk_deferred; |
cf22909c KL |
192 | } |
193 | ||
194 | /* Stop deferring access checks. */ | |
195 | ||
572c2b17 AP |
196 | void |
197 | stop_deferring_access_checks (void) | |
cf22909c | 198 | { |
3e1f1ba5 | 199 | if (!deferred_access_no_check) |
9771b263 | 200 | deferred_access_stack->last().deferring_access_checks_kind = dk_no_deferred; |
cf22909c KL |
201 | } |
202 | ||
203 | /* Discard the current deferred access checks and restore the | |
204 | previous states. */ | |
205 | ||
572c2b17 AP |
206 | void |
207 | pop_deferring_access_checks (void) | |
cf22909c | 208 | { |
3e1f1ba5 NS |
209 | if (deferred_access_no_check) |
210 | deferred_access_no_check--; | |
211 | else | |
9771b263 | 212 | deferred_access_stack->pop (); |
cf22909c KL |
213 | } |
214 | ||
c8094d83 MS |
215 | /* Returns a TREE_LIST representing the deferred checks. |
216 | The TREE_PURPOSE of each node is the type through which the | |
cf22909c KL |
217 | access occurred; the TREE_VALUE is the declaration named. |
218 | */ | |
219 | ||
9771b263 | 220 | vec<deferred_access_check, va_gc> * |
572c2b17 | 221 | get_deferred_access_checks (void) |
cf22909c | 222 | { |
3e1f1ba5 NS |
223 | if (deferred_access_no_check) |
224 | return NULL; | |
225 | else | |
9771b263 | 226 | return (deferred_access_stack->last().deferred_access_checks); |
cf22909c KL |
227 | } |
228 | ||
229 | /* Take current deferred checks and combine with the | |
230 | previous states if we also defer checks previously. | |
231 | Otherwise perform checks now. */ | |
232 | ||
572c2b17 AP |
233 | void |
234 | pop_to_parent_deferring_access_checks (void) | |
cf22909c | 235 | { |
3e1f1ba5 NS |
236 | if (deferred_access_no_check) |
237 | deferred_access_no_check--; | |
238 | else | |
239 | { | |
9771b263 | 240 | vec<deferred_access_check, va_gc> *checks; |
3e1f1ba5 NS |
241 | deferred_access *ptr; |
242 | ||
9771b263 | 243 | checks = (deferred_access_stack->last ().deferred_access_checks); |
3e1f1ba5 | 244 | |
9771b263 DN |
245 | deferred_access_stack->pop (); |
246 | ptr = &deferred_access_stack->last (); | |
3e1f1ba5 NS |
247 | if (ptr->deferring_access_checks_kind == dk_no_deferred) |
248 | { | |
249 | /* Check access. */ | |
0e69fdf0 | 250 | perform_access_checks (checks, tf_warning_or_error); |
3e1f1ba5 NS |
251 | } |
252 | else | |
253 | { | |
254 | /* Merge with parent. */ | |
d6b418fa SM |
255 | int i, j; |
256 | deferred_access_check *chk, *probe; | |
c8094d83 | 257 | |
9771b263 | 258 | FOR_EACH_VEC_SAFE_ELT (checks, i, chk) |
3e1f1ba5 | 259 | { |
9771b263 | 260 | FOR_EACH_VEC_SAFE_ELT (ptr->deferred_access_checks, j, probe) |
d6b418fa SM |
261 | { |
262 | if (probe->binfo == chk->binfo && | |
263 | probe->decl == chk->decl && | |
264 | probe->diag_decl == chk->diag_decl) | |
265 | goto found; | |
266 | } | |
3e1f1ba5 | 267 | /* Insert into parent's checks. */ |
9771b263 | 268 | vec_safe_push (ptr->deferred_access_checks, *chk); |
3e1f1ba5 NS |
269 | found:; |
270 | } | |
271 | } | |
272 | } | |
cf22909c KL |
273 | } |
274 | ||
6b648482 MM |
275 | /* Perform the access checks in CHECKS. The TREE_PURPOSE of each node |
276 | is the BINFO indicating the qualifying scope used to access the | |
0e69fdf0 PC |
277 | DECL node stored in the TREE_VALUE of the node. If CHECKS is empty |
278 | or we aren't in SFINAE context or all the checks succeed return TRUE, | |
279 | otherwise FALSE. */ | |
6b648482 | 280 | |
0e69fdf0 | 281 | bool |
9771b263 | 282 | perform_access_checks (vec<deferred_access_check, va_gc> *checks, |
0e69fdf0 | 283 | tsubst_flags_t complain) |
6b648482 | 284 | { |
d6b418fa SM |
285 | int i; |
286 | deferred_access_check *chk; | |
b3ff651a | 287 | location_t loc = input_location; |
0e69fdf0 | 288 | bool ok = true; |
d6b418fa SM |
289 | |
290 | if (!checks) | |
0e69fdf0 | 291 | return true; |
d6b418fa | 292 | |
9771b263 | 293 | FOR_EACH_VEC_SAFE_ELT (checks, i, chk) |
b3ff651a JM |
294 | { |
295 | input_location = chk->loc; | |
0e69fdf0 | 296 | ok &= enforce_access (chk->binfo, chk->decl, chk->diag_decl, complain); |
b3ff651a JM |
297 | } |
298 | ||
299 | input_location = loc; | |
0e69fdf0 | 300 | return (complain & tf_error) ? true : ok; |
6b648482 MM |
301 | } |
302 | ||
25903d03 KL |
303 | /* Perform the deferred access checks. |
304 | ||
305 | After performing the checks, we still have to keep the list | |
306 | `deferred_access_stack->deferred_access_checks' since we may want | |
307 | to check access for them again later in a different context. | |
308 | For example: | |
309 | ||
310 | class A { | |
311 | typedef int X; | |
312 | static X a; | |
313 | }; | |
314 | A::X A::a, x; // No error for `A::a', error for `x' | |
315 | ||
316 | We have to perform deferred access of `A::X', first with `A::a', | |
0e69fdf0 | 317 | next with `x'. Return value like perform_access_checks above. */ |
cf22909c | 318 | |
0e69fdf0 PC |
319 | bool |
320 | perform_deferred_access_checks (tsubst_flags_t complain) | |
cf22909c | 321 | { |
0e69fdf0 | 322 | return perform_access_checks (get_deferred_access_checks (), complain); |
cf22909c KL |
323 | } |
324 | ||
325 | /* Defer checking the accessibility of DECL, when looked up in | |
0e69fdf0 PC |
326 | BINFO. DIAG_DECL is the declaration to use to print diagnostics. |
327 | Return value like perform_access_checks above. */ | |
cf22909c | 328 | |
0e69fdf0 PC |
329 | bool |
330 | perform_or_defer_access_check (tree binfo, tree decl, tree diag_decl, | |
331 | tsubst_flags_t complain) | |
cf22909c | 332 | { |
d6b418fa | 333 | int i; |
3e1f1ba5 | 334 | deferred_access *ptr; |
d6b418fa | 335 | deferred_access_check *chk; |
d6b418fa | 336 | |
cf22909c | 337 | |
3e1f1ba5 NS |
338 | /* Exit if we are in a context that no access checking is performed. |
339 | */ | |
340 | if (deferred_access_no_check) | |
0e69fdf0 | 341 | return true; |
c8094d83 | 342 | |
50bc768d | 343 | gcc_assert (TREE_CODE (binfo) == TREE_BINFO); |
0f2a66c9 | 344 | |
9771b263 | 345 | ptr = &deferred_access_stack->last (); |
c8094d83 | 346 | |
cf22909c | 347 | /* If we are not supposed to defer access checks, just check now. */ |
3e1f1ba5 | 348 | if (ptr->deferring_access_checks_kind == dk_no_deferred) |
cf22909c | 349 | { |
0e69fdf0 PC |
350 | bool ok = enforce_access (binfo, decl, diag_decl, complain); |
351 | return (complain & tf_error) ? true : ok; | |
cf22909c | 352 | } |
c8094d83 | 353 | |
cf22909c | 354 | /* See if we are already going to perform this check. */ |
9771b263 | 355 | FOR_EACH_VEC_SAFE_ELT (ptr->deferred_access_checks, i, chk) |
d6b418fa SM |
356 | { |
357 | if (chk->decl == decl && chk->binfo == binfo && | |
358 | chk->diag_decl == diag_decl) | |
359 | { | |
0e69fdf0 | 360 | return true; |
d6b418fa SM |
361 | } |
362 | } | |
cf22909c | 363 | /* If not, record the check. */ |
f32682ca | 364 | deferred_access_check new_access = {binfo, decl, diag_decl, input_location}; |
9771b263 | 365 | vec_safe_push (ptr->deferred_access_checks, new_access); |
f7d042e2 JM |
366 | |
367 | return true; | |
368 | } | |
369 | ||
838dfd8a | 370 | /* Returns nonzero if the current statement is a full expression, |
f2c5f623 BC |
371 | i.e. temporaries created during that statement should be destroyed |
372 | at the end of the statement. */ | |
35b1567d | 373 | |
f2c5f623 | 374 | int |
3a978d72 | 375 | stmts_are_full_exprs_p (void) |
f2c5f623 | 376 | { |
ae499cce MM |
377 | return current_stmt_tree ()->stmts_are_full_exprs_p; |
378 | } | |
379 | ||
ed3d0b14 ILT |
380 | /* T is a statement. Add it to the statement-tree. This is the C++ |
381 | version. The C/ObjC frontends have a slightly different version of | |
382 | this function. */ | |
383 | ||
384 | tree | |
385 | add_stmt (tree t) | |
386 | { | |
387 | enum tree_code code = TREE_CODE (t); | |
388 | ||
389 | if (EXPR_P (t) && code != LABEL_EXPR) | |
390 | { | |
391 | if (!EXPR_HAS_LOCATION (t)) | |
392 | SET_EXPR_LOCATION (t, input_location); | |
393 | ||
394 | /* When we expand a statement-tree, we must know whether or not the | |
395 | statements are full-expressions. We record that fact here. */ | |
396 | STMT_IS_FULL_EXPR_P (t) = stmts_are_full_exprs_p (); | |
397 | } | |
398 | ||
0450fc0b PP |
399 | if (code == LABEL_EXPR || code == CASE_LABEL_EXPR) |
400 | STATEMENT_LIST_HAS_LABEL (cur_stmt_list) = 1; | |
401 | ||
ed3d0b14 ILT |
402 | /* Add T to the statement-tree. Non-side-effect statements need to be |
403 | recorded during statement expressions. */ | |
9771b263 | 404 | gcc_checking_assert (!stmt_list_stack->is_empty ()); |
ed3d0b14 ILT |
405 | append_to_statement_list_force (t, &cur_stmt_list); |
406 | ||
407 | return t; | |
408 | } | |
409 | ||
e8924938 | 410 | /* Returns the stmt_tree to which statements are currently being added. */ |
ae499cce MM |
411 | |
412 | stmt_tree | |
3a978d72 | 413 | current_stmt_tree (void) |
ae499cce | 414 | { |
c8094d83 MS |
415 | return (cfun |
416 | ? &cfun->language->base.x_stmt_tree | |
ae499cce | 417 | : &scope_chain->x_stmt_tree); |
f2c5f623 | 418 | } |
35b1567d | 419 | |
543a0daa RH |
420 | /* If statements are full expressions, wrap STMT in a CLEANUP_POINT_EXPR. */ |
421 | ||
422 | static tree | |
423 | maybe_cleanup_point_expr (tree expr) | |
424 | { | |
425 | if (!processing_template_decl && stmts_are_full_exprs_p ()) | |
0ad28dde | 426 | expr = fold_build_cleanup_point_expr (TREE_TYPE (expr), expr); |
543a0daa RH |
427 | return expr; |
428 | } | |
429 | ||
0ad28dde | 430 | /* Like maybe_cleanup_point_expr except have the type of the new expression be |
22423a1f KH |
431 | void so we don't need to create a temporary variable to hold the inner |
432 | expression. The reason why we do this is because the original type might be | |
433 | an aggregate and we cannot create a temporary variable for that type. */ | |
0ad28dde | 434 | |
14a3430e | 435 | tree |
0ad28dde AP |
436 | maybe_cleanup_point_expr_void (tree expr) |
437 | { | |
438 | if (!processing_template_decl && stmts_are_full_exprs_p ()) | |
439 | expr = fold_build_cleanup_point_expr (void_type_node, expr); | |
440 | return expr; | |
441 | } | |
442 | ||
443 | ||
444 | ||
543a0daa RH |
445 | /* Create a declaration statement for the declaration given by the DECL. */ |
446 | ||
447 | void | |
350fae66 | 448 | add_decl_expr (tree decl) |
543a0daa | 449 | { |
c2255bc4 | 450 | tree r = build_stmt (input_location, DECL_EXPR, decl); |
b187901e AP |
451 | if (DECL_INITIAL (decl) |
452 | || (DECL_SIZE (decl) && TREE_SIDE_EFFECTS (DECL_SIZE (decl)))) | |
0ad28dde | 453 | r = maybe_cleanup_point_expr_void (r); |
543a0daa RH |
454 | add_stmt (r); |
455 | } | |
456 | ||
f2c5f623 | 457 | /* Finish a scope. */ |
35b1567d | 458 | |
20aff0b3 | 459 | tree |
325c3691 | 460 | do_poplevel (tree stmt_list) |
35b1567d | 461 | { |
325c3691 | 462 | tree block = NULL; |
35b1567d | 463 | |
f2c5f623 | 464 | if (stmts_are_full_exprs_p ()) |
325c3691 | 465 | block = poplevel (kept_level_p (), 1, 0); |
f2c5f623 | 466 | |
325c3691 | 467 | stmt_list = pop_stmt_list (stmt_list); |
c8094d83 | 468 | |
325c3691 RH |
469 | if (!processing_template_decl) |
470 | { | |
c2255bc4 | 471 | stmt_list = c_build_bind_expr (input_location, block, stmt_list); |
325c3691 | 472 | /* ??? See c_end_compound_stmt re statement expressions. */ |
35b1567d BC |
473 | } |
474 | ||
325c3691 | 475 | return stmt_list; |
35b1567d BC |
476 | } |
477 | ||
c8094d83 | 478 | /* Begin a new scope. */ |
35b1567d | 479 | |
325c3691 | 480 | static tree |
92bc1323 | 481 | do_pushlevel (scope_kind sk) |
35b1567d | 482 | { |
325c3691 | 483 | tree ret = push_stmt_list (); |
f2c5f623 | 484 | if (stmts_are_full_exprs_p ()) |
325c3691 RH |
485 | begin_scope (sk, NULL); |
486 | return ret; | |
487 | } | |
5a508662 RH |
488 | |
489 | /* Queue a cleanup. CLEANUP is an expression/statement to be executed | |
490 | when the current scope is exited. EH_ONLY is true when this is not | |
491 | meant to apply to normal control flow transfer. */ | |
492 | ||
493 | void | |
494 | push_cleanup (tree decl, tree cleanup, bool eh_only) | |
495 | { | |
c2255bc4 | 496 | tree stmt = build_stmt (input_location, CLEANUP_STMT, NULL, cleanup, decl); |
5a508662 RH |
497 | CLEANUP_EH_ONLY (stmt) = eh_only; |
498 | add_stmt (stmt); | |
499 | CLEANUP_BODY (stmt) = push_stmt_list (); | |
500 | } | |
325c3691 | 501 | |
20f18c3c JM |
502 | /* Simple infinite loop tracking for -Wreturn-type. We keep a stack of all |
503 | the current loops, represented by 'NULL_TREE' if we've seen a possible | |
504 | exit, and 'error_mark_node' if not. This is currently used only to | |
505 | suppress the warning about a function with no return statements, and | |
506 | therefore we don't bother noting returns as possible exits. We also | |
507 | don't bother with gotos. */ | |
508 | ||
509 | static void | |
510 | begin_maybe_infinite_loop (tree cond) | |
511 | { | |
512 | /* Only track this while parsing a function, not during instantiation. */ | |
513 | if (!cfun || (DECL_TEMPLATE_INSTANTIATION (current_function_decl) | |
514 | && !processing_template_decl)) | |
515 | return; | |
516 | bool maybe_infinite = true; | |
517 | if (cond) | |
518 | { | |
234bef96 | 519 | cond = fold_non_dependent_expr (cond); |
20f18c3c JM |
520 | maybe_infinite = integer_nonzerop (cond); |
521 | } | |
522 | vec_safe_push (cp_function_chain->infinite_loops, | |
523 | maybe_infinite ? error_mark_node : NULL_TREE); | |
524 | ||
525 | } | |
526 | ||
527 | /* A break is a possible exit for the current loop. */ | |
528 | ||
529 | void | |
530 | break_maybe_infinite_loop (void) | |
531 | { | |
532 | if (!cfun) | |
533 | return; | |
534 | cp_function_chain->infinite_loops->last() = NULL_TREE; | |
535 | } | |
536 | ||
537 | /* If we reach the end of the loop without seeing a possible exit, we have | |
538 | an infinite loop. */ | |
539 | ||
540 | static void | |
541 | end_maybe_infinite_loop (tree cond) | |
542 | { | |
543 | if (!cfun || (DECL_TEMPLATE_INSTANTIATION (current_function_decl) | |
544 | && !processing_template_decl)) | |
545 | return; | |
546 | tree current = cp_function_chain->infinite_loops->pop(); | |
547 | if (current != NULL_TREE) | |
548 | { | |
549 | cond = fold_non_dependent_expr (cond); | |
20f18c3c JM |
550 | if (integer_nonzerop (cond)) |
551 | current_function_infinite_loop = 1; | |
552 | } | |
553 | } | |
554 | ||
555 | ||
caf2523d RH |
556 | /* Begin a conditional that might contain a declaration. When generating |
557 | normal code, we want the declaration to appear before the statement | |
558 | containing the conditional. When generating template code, we want the | |
350fae66 | 559 | conditional to be rendered as the raw DECL_EXPR. */ |
325c3691 RH |
560 | |
561 | static void | |
caf2523d | 562 | begin_cond (tree *cond_p) |
325c3691 | 563 | { |
caf2523d RH |
564 | if (processing_template_decl) |
565 | *cond_p = push_stmt_list (); | |
566 | } | |
567 | ||
568 | /* Finish such a conditional. */ | |
569 | ||
570 | static void | |
571 | finish_cond (tree *cond_p, tree expr) | |
572 | { | |
573 | if (processing_template_decl) | |
35b1567d | 574 | { |
caf2523d | 575 | tree cond = pop_stmt_list (*cond_p); |
5d80a306 | 576 | |
fdaf2f48 JM |
577 | if (expr == NULL_TREE) |
578 | /* Empty condition in 'for'. */ | |
579 | gcc_assert (empty_expr_stmt_p (cond)); | |
580 | else if (check_for_bare_parameter_packs (expr)) | |
581 | expr = error_mark_node; | |
582 | else if (!empty_expr_stmt_p (cond)) | |
583 | expr = build2 (COMPOUND_EXPR, TREE_TYPE (expr), cond, expr); | |
35b1567d | 584 | } |
caf2523d | 585 | *cond_p = expr; |
35b1567d BC |
586 | } |
587 | ||
325c3691 RH |
588 | /* If *COND_P specifies a conditional with a declaration, transform the |
589 | loop such that | |
0cbd7506 MS |
590 | while (A x = 42) { } |
591 | for (; A x = 42;) { } | |
325c3691 | 592 | becomes |
0cbd7506 MS |
593 | while (true) { A x = 42; if (!x) break; } |
594 | for (;;) { A x = 42; if (!x) break; } | |
caf2523d RH |
595 | The statement list for BODY will be empty if the conditional did |
596 | not declare anything. */ | |
c8094d83 | 597 | |
325c3691 | 598 | static void |
caf2523d | 599 | simplify_loop_decl_cond (tree *cond_p, tree body) |
325c3691 | 600 | { |
caf2523d | 601 | tree cond, if_stmt; |
325c3691 | 602 | |
caf2523d RH |
603 | if (!TREE_SIDE_EFFECTS (body)) |
604 | return; | |
325c3691 | 605 | |
caf2523d RH |
606 | cond = *cond_p; |
607 | *cond_p = boolean_true_node; | |
c8094d83 | 608 | |
caf2523d | 609 | if_stmt = begin_if_stmt (); |
5ade1ed2 | 610 | cond = cp_build_unary_op (TRUTH_NOT_EXPR, cond, 0, tf_warning_or_error); |
caf2523d RH |
611 | finish_if_stmt_cond (cond, if_stmt); |
612 | finish_break_stmt (); | |
613 | finish_then_clause (if_stmt); | |
614 | finish_if_stmt (if_stmt); | |
615 | } | |
325c3691 | 616 | |
35b1567d BC |
617 | /* Finish a goto-statement. */ |
618 | ||
3e4d04a1 | 619 | tree |
3a978d72 | 620 | finish_goto_stmt (tree destination) |
35b1567d | 621 | { |
9dc6f476 | 622 | if (identifier_p (destination)) |
35b1567d BC |
623 | destination = lookup_label (destination); |
624 | ||
625 | /* We warn about unused labels with -Wunused. That means we have to | |
626 | mark the used labels as used. */ | |
627 | if (TREE_CODE (destination) == LABEL_DECL) | |
628 | TREE_USED (destination) = 1; | |
fc2b8477 MM |
629 | else |
630 | { | |
14f68c39 AK |
631 | if (check_no_cilk (destination, |
632 | "Cilk array notation cannot be used as a computed goto expression", | |
633 | "%<_Cilk_spawn%> statement cannot be used as a computed goto expression")) | |
634 | destination = error_mark_node; | |
84628aa8 | 635 | destination = mark_rvalue_use (destination); |
fc2b8477 | 636 | if (!processing_template_decl) |
f5651df1 | 637 | { |
4b978f96 PC |
638 | destination = cp_convert (ptr_type_node, destination, |
639 | tf_warning_or_error); | |
f5651df1 JJ |
640 | if (error_operand_p (destination)) |
641 | return NULL_TREE; | |
53406315 JJ |
642 | destination |
643 | = fold_build_cleanup_point_expr (TREE_TYPE (destination), | |
644 | destination); | |
f5651df1 | 645 | } |
fc2b8477 | 646 | } |
c8094d83 | 647 | |
35b1567d BC |
648 | check_goto (destination); |
649 | ||
c2255bc4 | 650 | return add_stmt (build_stmt (input_location, GOTO_EXPR, destination)); |
35b1567d BC |
651 | } |
652 | ||
ed5511d9 | 653 | /* COND is the condition-expression for an if, while, etc., |
d4033c81 MLI |
654 | statement. Convert it to a boolean value, if appropriate. |
655 | In addition, verify sequence points if -Wsequence-point is enabled. */ | |
ed5511d9 | 656 | |
8ce33230 | 657 | static tree |
3a978d72 | 658 | maybe_convert_cond (tree cond) |
ed5511d9 MM |
659 | { |
660 | /* Empty conditions remain empty. */ | |
661 | if (!cond) | |
662 | return NULL_TREE; | |
663 | ||
664 | /* Wait until we instantiate templates before doing conversion. */ | |
665 | if (processing_template_decl) | |
666 | return cond; | |
667 | ||
d4033c81 MLI |
668 | if (warn_sequence_point) |
669 | verify_sequence_points (cond); | |
670 | ||
ed5511d9 MM |
671 | /* Do the conversion. */ |
672 | cond = convert_from_reference (cond); | |
fbc8d2d3 ILT |
673 | |
674 | if (TREE_CODE (cond) == MODIFY_EXPR | |
675 | && !TREE_NO_WARNING (cond) | |
676 | && warn_parentheses) | |
677 | { | |
678 | warning (OPT_Wparentheses, | |
679 | "suggest parentheses around assignment used as truth value"); | |
680 | TREE_NO_WARNING (cond) = 1; | |
681 | } | |
682 | ||
ed5511d9 MM |
683 | return condition_conversion (cond); |
684 | } | |
685 | ||
9bfadf57 | 686 | /* Finish an expression-statement, whose EXPRESSION is as indicated. */ |
a7e4cfa0 | 687 | |
3e4d04a1 | 688 | tree |
3a978d72 | 689 | finish_expr_stmt (tree expr) |
ad321293 | 690 | { |
3e4d04a1 RH |
691 | tree r = NULL_TREE; |
692 | ||
ce4a0391 | 693 | if (expr != NULL_TREE) |
ad321293 | 694 | { |
a5bcc582 | 695 | if (!processing_template_decl) |
3a5b9284 RH |
696 | { |
697 | if (warn_sequence_point) | |
698 | verify_sequence_points (expr); | |
ebeb2c24 | 699 | expr = convert_to_void (expr, ICV_STATEMENT, tf_warning_or_error); |
3a5b9284 | 700 | } |
47d4c811 | 701 | else if (!type_dependent_expression_p (expr)) |
ebeb2c24 | 702 | convert_to_void (build_non_dependent_expr (expr), ICV_STATEMENT, |
5ade1ed2 | 703 | tf_warning_or_error); |
325c3691 | 704 | |
7b3e2d46 | 705 | if (check_for_bare_parameter_packs (expr)) |
4439d02f | 706 | expr = error_mark_node; |
5d80a306 | 707 | |
325c3691 | 708 | /* Simplification of inner statement expressions, compound exprs, |
ca5b80f3 | 709 | etc can result in us already having an EXPR_STMT. */ |
543a0daa RH |
710 | if (TREE_CODE (expr) != CLEANUP_POINT_EXPR) |
711 | { | |
712 | if (TREE_CODE (expr) != EXPR_STMT) | |
c2255bc4 | 713 | expr = build_stmt (input_location, EXPR_STMT, expr); |
0ad28dde | 714 | expr = maybe_cleanup_point_expr_void (expr); |
543a0daa RH |
715 | } |
716 | ||
325c3691 | 717 | r = add_stmt (expr); |
35b1567d | 718 | } |
364460b6 | 719 | |
3e4d04a1 | 720 | return r; |
35b1567d BC |
721 | } |
722 | ||
35b1567d | 723 | |
ad321293 MM |
724 | /* Begin an if-statement. Returns a newly created IF_STMT if |
725 | appropriate. */ | |
726 | ||
727 | tree | |
3a978d72 | 728 | begin_if_stmt (void) |
ad321293 | 729 | { |
325c3691 | 730 | tree r, scope; |
1eb2a14d | 731 | scope = do_pushlevel (sk_cond); |
545f261b NF |
732 | r = build_stmt (input_location, IF_STMT, NULL_TREE, |
733 | NULL_TREE, NULL_TREE, scope); | |
caf2523d | 734 | begin_cond (&IF_COND (r)); |
ad321293 MM |
735 | return r; |
736 | } | |
737 | ||
738 | /* Process the COND of an if-statement, which may be given by | |
739 | IF_STMT. */ | |
740 | ||
c8094d83 | 741 | void |
3a978d72 | 742 | finish_if_stmt_cond (tree cond, tree if_stmt) |
ad321293 | 743 | { |
caf2523d RH |
744 | finish_cond (&IF_COND (if_stmt), maybe_convert_cond (cond)); |
745 | add_stmt (if_stmt); | |
325c3691 | 746 | THEN_CLAUSE (if_stmt) = push_stmt_list (); |
ad321293 MM |
747 | } |
748 | ||
749 | /* Finish the then-clause of an if-statement, which may be given by | |
750 | IF_STMT. */ | |
751 | ||
752 | tree | |
3a978d72 | 753 | finish_then_clause (tree if_stmt) |
ad321293 | 754 | { |
325c3691 | 755 | THEN_CLAUSE (if_stmt) = pop_stmt_list (THEN_CLAUSE (if_stmt)); |
35b1567d | 756 | return if_stmt; |
ad321293 MM |
757 | } |
758 | ||
759 | /* Begin the else-clause of an if-statement. */ | |
760 | ||
325c3691 RH |
761 | void |
762 | begin_else_clause (tree if_stmt) | |
ad321293 | 763 | { |
325c3691 | 764 | ELSE_CLAUSE (if_stmt) = push_stmt_list (); |
ad321293 MM |
765 | } |
766 | ||
767 | /* Finish the else-clause of an if-statement, which may be given by | |
768 | IF_STMT. */ | |
769 | ||
770 | void | |
3a978d72 | 771 | finish_else_clause (tree if_stmt) |
ad321293 | 772 | { |
325c3691 | 773 | ELSE_CLAUSE (if_stmt) = pop_stmt_list (ELSE_CLAUSE (if_stmt)); |
ad321293 MM |
774 | } |
775 | ||
dfbb4f34 | 776 | /* Finish an if-statement. */ |
ad321293 | 777 | |
c8094d83 | 778 | void |
325c3691 | 779 | finish_if_stmt (tree if_stmt) |
ad321293 | 780 | { |
545f261b NF |
781 | tree scope = IF_SCOPE (if_stmt); |
782 | IF_SCOPE (if_stmt) = NULL; | |
325c3691 | 783 | add_stmt (do_poplevel (scope)); |
35b1567d BC |
784 | } |
785 | ||
ad321293 MM |
786 | /* Begin a while-statement. Returns a newly created WHILE_STMT if |
787 | appropriate. */ | |
788 | ||
789 | tree | |
3a978d72 | 790 | begin_while_stmt (void) |
ad321293 MM |
791 | { |
792 | tree r; | |
c2255bc4 | 793 | r = build_stmt (input_location, WHILE_STMT, NULL_TREE, NULL_TREE); |
ae499cce | 794 | add_stmt (r); |
325c3691 | 795 | WHILE_BODY (r) = do_pushlevel (sk_block); |
caf2523d | 796 | begin_cond (&WHILE_COND (r)); |
ad321293 MM |
797 | return r; |
798 | } | |
799 | ||
27d26ee7 | 800 | /* Process the COND of a while-statement, which may be given by |
ad321293 MM |
801 | WHILE_STMT. */ |
802 | ||
c8094d83 | 803 | void |
c5028d80 | 804 | finish_while_stmt_cond (tree cond, tree while_stmt, bool ivdep) |
ad321293 | 805 | { |
14f68c39 AK |
806 | if (check_no_cilk (cond, |
807 | "Cilk array notation cannot be used as a condition for while statement", | |
808 | "%<_Cilk_spawn%> statement cannot be used as a condition for while statement")) | |
809 | cond = error_mark_node; | |
20f18c3c JM |
810 | cond = maybe_convert_cond (cond); |
811 | finish_cond (&WHILE_COND (while_stmt), cond); | |
812 | begin_maybe_infinite_loop (cond); | |
c5028d80 TB |
813 | if (ivdep && cond != error_mark_node) |
814 | WHILE_COND (while_stmt) = build2 (ANNOTATE_EXPR, | |
815 | TREE_TYPE (WHILE_COND (while_stmt)), | |
816 | WHILE_COND (while_stmt), | |
817 | build_int_cst (integer_type_node, | |
818 | annot_expr_ivdep_kind)); | |
caf2523d | 819 | simplify_loop_decl_cond (&WHILE_COND (while_stmt), WHILE_BODY (while_stmt)); |
ad321293 MM |
820 | } |
821 | ||
822 | /* Finish a while-statement, which may be given by WHILE_STMT. */ | |
823 | ||
c8094d83 | 824 | void |
3a978d72 | 825 | finish_while_stmt (tree while_stmt) |
ad321293 | 826 | { |
20f18c3c | 827 | end_maybe_infinite_loop (boolean_true_node); |
325c3691 | 828 | WHILE_BODY (while_stmt) = do_poplevel (WHILE_BODY (while_stmt)); |
ad321293 MM |
829 | } |
830 | ||
831 | /* Begin a do-statement. Returns a newly created DO_STMT if | |
832 | appropriate. */ | |
833 | ||
834 | tree | |
3a978d72 | 835 | begin_do_stmt (void) |
ad321293 | 836 | { |
c2255bc4 | 837 | tree r = build_stmt (input_location, DO_STMT, NULL_TREE, NULL_TREE); |
20f18c3c | 838 | begin_maybe_infinite_loop (boolean_true_node); |
ae499cce | 839 | add_stmt (r); |
325c3691 | 840 | DO_BODY (r) = push_stmt_list (); |
35b1567d | 841 | return r; |
ad321293 MM |
842 | } |
843 | ||
844 | /* Finish the body of a do-statement, which may be given by DO_STMT. */ | |
845 | ||
846 | void | |
3a978d72 | 847 | finish_do_body (tree do_stmt) |
ad321293 | 848 | { |
62e00e94 DM |
849 | tree body = DO_BODY (do_stmt) = pop_stmt_list (DO_BODY (do_stmt)); |
850 | ||
851 | if (TREE_CODE (body) == STATEMENT_LIST && STATEMENT_LIST_TAIL (body)) | |
852 | body = STATEMENT_LIST_TAIL (body)->stmt; | |
853 | ||
854 | if (IS_EMPTY_STMT (body)) | |
855 | warning (OPT_Wempty_body, | |
856 | "suggest explicit braces around empty body in %<do%> statement"); | |
ad321293 MM |
857 | } |
858 | ||
859 | /* Finish a do-statement, which may be given by DO_STMT, and whose | |
860 | COND is as indicated. */ | |
861 | ||
862 | void | |
c5028d80 | 863 | finish_do_stmt (tree cond, tree do_stmt, bool ivdep) |
ad321293 | 864 | { |
14f68c39 AK |
865 | if (check_no_cilk (cond, |
866 | "Cilk array notation cannot be used as a condition for a do-while statement", | |
867 | "%<_Cilk_spawn%> statement cannot be used as a condition for a do-while statement")) | |
868 | cond = error_mark_node; | |
ed5511d9 | 869 | cond = maybe_convert_cond (cond); |
20f18c3c | 870 | end_maybe_infinite_loop (cond); |
c5028d80 TB |
871 | if (ivdep && cond != error_mark_node) |
872 | cond = build2 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, | |
873 | build_int_cst (integer_type_node, annot_expr_ivdep_kind)); | |
35b1567d | 874 | DO_COND (do_stmt) = cond; |
35b1567d | 875 | } |
ed5511d9 | 876 | |
ad321293 MM |
877 | /* Finish a return-statement. The EXPRESSION returned, if any, is as |
878 | indicated. */ | |
879 | ||
3e4d04a1 | 880 | tree |
3a978d72 | 881 | finish_return_stmt (tree expr) |
ad321293 | 882 | { |
3e4d04a1 | 883 | tree r; |
0c9b182b | 884 | bool no_warning; |
3e4d04a1 | 885 | |
0c9b182b | 886 | expr = check_return_expr (expr, &no_warning); |
1799e5d5 | 887 | |
830ce0a2 MP |
888 | if (error_operand_p (expr) |
889 | || (flag_openmp && !check_omp_return ())) | |
1799e5d5 | 890 | return error_mark_node; |
35b1567d | 891 | if (!processing_template_decl) |
efee38a9 | 892 | { |
d4033c81 MLI |
893 | if (warn_sequence_point) |
894 | verify_sequence_points (expr); | |
895 | ||
44d10c10 | 896 | if (DECL_DESTRUCTOR_P (current_function_decl) |
c8094d83 | 897 | || (DECL_CONSTRUCTOR_P (current_function_decl) |
44d10c10 | 898 | && targetm.cxx.cdtor_returns_this ())) |
efee38a9 MM |
899 | { |
900 | /* Similarly, all destructors must run destructors for | |
901 | base-classes before returning. So, all returns in a | |
dfbb4f34 | 902 | destructor get sent to the DTOR_LABEL; finish_function emits |
efee38a9 | 903 | code to return a value there. */ |
44d10c10 | 904 | return finish_goto_stmt (cdtor_label); |
efee38a9 MM |
905 | } |
906 | } | |
543a0daa | 907 | |
c2255bc4 | 908 | r = build_stmt (input_location, RETURN_EXPR, expr); |
0c9b182b | 909 | TREE_NO_WARNING (r) |= no_warning; |
0ad28dde | 910 | r = maybe_cleanup_point_expr_void (r); |
543a0daa | 911 | r = add_stmt (r); |
3e4d04a1 RH |
912 | |
913 | return r; | |
35b1567d | 914 | } |
efee38a9 | 915 | |
3f43ac31 RRC |
916 | /* Begin the scope of a for-statement or a range-for-statement. |
917 | Both the returned trees are to be used in a call to | |
918 | begin_for_stmt or begin_range_for_stmt. */ | |
ad321293 MM |
919 | |
920 | tree | |
3f43ac31 RRC |
921 | begin_for_scope (tree *init) |
922 | { | |
923 | tree scope = NULL_TREE; | |
924 | if (flag_new_for_scope > 0) | |
925 | scope = do_pushlevel (sk_for); | |
926 | ||
927 | if (processing_template_decl) | |
928 | *init = push_stmt_list (); | |
929 | else | |
930 | *init = NULL_TREE; | |
931 | ||
932 | return scope; | |
933 | } | |
934 | ||
935 | /* Begin a for-statement. Returns a new FOR_STMT. | |
936 | SCOPE and INIT should be the return of begin_for_scope, | |
937 | or both NULL_TREE */ | |
938 | ||
939 | tree | |
940 | begin_for_stmt (tree scope, tree init) | |
ad321293 MM |
941 | { |
942 | tree r; | |
943 | ||
c2255bc4 | 944 | r = build_stmt (input_location, FOR_STMT, NULL_TREE, NULL_TREE, |
40e71fc7 | 945 | NULL_TREE, NULL_TREE, NULL_TREE); |
325c3691 | 946 | |
3f43ac31 RRC |
947 | if (scope == NULL_TREE) |
948 | { | |
95cc031f JJ |
949 | gcc_assert (!init || !(flag_new_for_scope > 0)); |
950 | if (!init) | |
951 | scope = begin_for_scope (&init); | |
3f43ac31 RRC |
952 | } |
953 | FOR_INIT_STMT (r) = init; | |
40e71fc7 | 954 | FOR_SCOPE (r) = scope; |
894ca2c9 | 955 | |
ad321293 MM |
956 | return r; |
957 | } | |
958 | ||
959 | /* Finish the for-init-statement of a for-statement, which may be | |
960 | given by FOR_STMT. */ | |
961 | ||
962 | void | |
3a978d72 | 963 | finish_for_init_stmt (tree for_stmt) |
ad321293 | 964 | { |
894ca2c9 RH |
965 | if (processing_template_decl) |
966 | FOR_INIT_STMT (for_stmt) = pop_stmt_list (FOR_INIT_STMT (for_stmt)); | |
325c3691 RH |
967 | add_stmt (for_stmt); |
968 | FOR_BODY (for_stmt) = do_pushlevel (sk_block); | |
caf2523d | 969 | begin_cond (&FOR_COND (for_stmt)); |
ad321293 MM |
970 | } |
971 | ||
972 | /* Finish the COND of a for-statement, which may be given by | |
973 | FOR_STMT. */ | |
974 | ||
975 | void | |
c5028d80 | 976 | finish_for_cond (tree cond, tree for_stmt, bool ivdep) |
ad321293 | 977 | { |
14f68c39 AK |
978 | if (check_no_cilk (cond, |
979 | "Cilk array notation cannot be used in a condition for a for-loop", | |
980 | "%<_Cilk_spawn%> statement cannot be used in a condition for a for-loop")) | |
981 | cond = error_mark_node; | |
20f18c3c JM |
982 | cond = maybe_convert_cond (cond); |
983 | finish_cond (&FOR_COND (for_stmt), cond); | |
984 | begin_maybe_infinite_loop (cond); | |
c5028d80 TB |
985 | if (ivdep && cond != error_mark_node) |
986 | FOR_COND (for_stmt) = build2 (ANNOTATE_EXPR, | |
987 | TREE_TYPE (FOR_COND (for_stmt)), | |
988 | FOR_COND (for_stmt), | |
989 | build_int_cst (integer_type_node, | |
990 | annot_expr_ivdep_kind)); | |
caf2523d | 991 | simplify_loop_decl_cond (&FOR_COND (for_stmt), FOR_BODY (for_stmt)); |
ad321293 MM |
992 | } |
993 | ||
994 | /* Finish the increment-EXPRESSION in a for-statement, which may be | |
995 | given by FOR_STMT. */ | |
996 | ||
997 | void | |
3a978d72 | 998 | finish_for_expr (tree expr, tree for_stmt) |
ad321293 | 999 | { |
543a0daa RH |
1000 | if (!expr) |
1001 | return; | |
6f69173e MM |
1002 | /* If EXPR is an overloaded function, issue an error; there is no |
1003 | context available to use to perform overload resolution. */ | |
543a0daa | 1004 | if (type_unknown_p (expr)) |
6f69173e MM |
1005 | { |
1006 | cxx_incomplete_type_error (expr, TREE_TYPE (expr)); | |
1007 | expr = error_mark_node; | |
1008 | } | |
bcd46a7c AP |
1009 | if (!processing_template_decl) |
1010 | { | |
1011 | if (warn_sequence_point) | |
0cbd7506 | 1012 | verify_sequence_points (expr); |
ebeb2c24 | 1013 | expr = convert_to_void (expr, ICV_THIRD_IN_FOR, |
5ade1ed2 | 1014 | tf_warning_or_error); |
bcd46a7c AP |
1015 | } |
1016 | else if (!type_dependent_expression_p (expr)) | |
ebeb2c24 | 1017 | convert_to_void (build_non_dependent_expr (expr), ICV_THIRD_IN_FOR, |
5ade1ed2 | 1018 | tf_warning_or_error); |
0ad28dde | 1019 | expr = maybe_cleanup_point_expr_void (expr); |
7b3e2d46 | 1020 | if (check_for_bare_parameter_packs (expr)) |
4439d02f | 1021 | expr = error_mark_node; |
35b1567d | 1022 | FOR_EXPR (for_stmt) = expr; |
ad321293 MM |
1023 | } |
1024 | ||
1025 | /* Finish the body of a for-statement, which may be given by | |
1026 | FOR_STMT. The increment-EXPR for the loop must be | |
f9132eb7 RRC |
1027 | provided. |
1028 | It can also finish RANGE_FOR_STMT. */ | |
ad321293 MM |
1029 | |
1030 | void | |
3a978d72 | 1031 | finish_for_stmt (tree for_stmt) |
ad321293 | 1032 | { |
20f18c3c JM |
1033 | end_maybe_infinite_loop (boolean_true_node); |
1034 | ||
f9132eb7 | 1035 | if (TREE_CODE (for_stmt) == RANGE_FOR_STMT) |
a8733ebf | 1036 | RANGE_FOR_BODY (for_stmt) = do_poplevel (RANGE_FOR_BODY (for_stmt)); |
f9132eb7 | 1037 | else |
a8733ebf | 1038 | FOR_BODY (for_stmt) = do_poplevel (FOR_BODY (for_stmt)); |
325c3691 | 1039 | |
ad321293 | 1040 | /* Pop the scope for the body of the loop. */ |
a8733ebf | 1041 | if (flag_new_for_scope > 0) |
325c3691 | 1042 | { |
40e71fc7 NF |
1043 | tree scope; |
1044 | tree *scope_ptr = (TREE_CODE (for_stmt) == RANGE_FOR_STMT | |
1045 | ? &RANGE_FOR_SCOPE (for_stmt) | |
1046 | : &FOR_SCOPE (for_stmt)); | |
1047 | scope = *scope_ptr; | |
1048 | *scope_ptr = NULL; | |
325c3691 RH |
1049 | add_stmt (do_poplevel (scope)); |
1050 | } | |
ad321293 MM |
1051 | } |
1052 | ||
f9132eb7 | 1053 | /* Begin a range-for-statement. Returns a new RANGE_FOR_STMT. |
3f43ac31 RRC |
1054 | SCOPE and INIT should be the return of begin_for_scope, |
1055 | or both NULL_TREE . | |
f9132eb7 RRC |
1056 | To finish it call finish_for_stmt(). */ |
1057 | ||
1058 | tree | |
3f43ac31 | 1059 | begin_range_for_stmt (tree scope, tree init) |
f9132eb7 RRC |
1060 | { |
1061 | tree r; | |
a8733ebf | 1062 | |
20f18c3c JM |
1063 | begin_maybe_infinite_loop (boolean_false_node); |
1064 | ||
f9132eb7 | 1065 | r = build_stmt (input_location, RANGE_FOR_STMT, |
40e71fc7 | 1066 | NULL_TREE, NULL_TREE, NULL_TREE, NULL_TREE); |
a8733ebf | 1067 | |
3f43ac31 RRC |
1068 | if (scope == NULL_TREE) |
1069 | { | |
95cc031f JJ |
1070 | gcc_assert (!init || !(flag_new_for_scope > 0)); |
1071 | if (!init) | |
1072 | scope = begin_for_scope (&init); | |
3f43ac31 RRC |
1073 | } |
1074 | ||
1075 | /* RANGE_FOR_STMTs do not use nor save the init tree, so we | |
1076 | pop it now. */ | |
1077 | if (init) | |
1078 | pop_stmt_list (init); | |
40e71fc7 | 1079 | RANGE_FOR_SCOPE (r) = scope; |
f9132eb7 RRC |
1080 | |
1081 | return r; | |
1082 | } | |
1083 | ||
1084 | /* Finish the head of a range-based for statement, which may | |
1085 | be given by RANGE_FOR_STMT. DECL must be the declaration | |
1086 | and EXPR must be the loop expression. */ | |
1087 | ||
1088 | void | |
1089 | finish_range_for_decl (tree range_for_stmt, tree decl, tree expr) | |
1090 | { | |
1091 | RANGE_FOR_DECL (range_for_stmt) = decl; | |
1092 | RANGE_FOR_EXPR (range_for_stmt) = expr; | |
1093 | add_stmt (range_for_stmt); | |
1094 | RANGE_FOR_BODY (range_for_stmt) = do_pushlevel (sk_block); | |
1095 | } | |
1096 | ||
ad321293 MM |
1097 | /* Finish a break-statement. */ |
1098 | ||
3e4d04a1 | 1099 | tree |
3a978d72 | 1100 | finish_break_stmt (void) |
ad321293 | 1101 | { |
04771457 JM |
1102 | /* In switch statements break is sometimes stylistically used after |
1103 | a return statement. This can lead to spurious warnings about | |
1104 | control reaching the end of a non-void function when it is | |
1105 | inlined. Note that we are calling block_may_fallthru with | |
1106 | language specific tree nodes; this works because | |
1107 | block_may_fallthru returns true when given something it does not | |
1108 | understand. */ | |
1109 | if (!block_may_fallthru (cur_stmt_list)) | |
632f2871 | 1110 | return void_node; |
c2255bc4 | 1111 | return add_stmt (build_stmt (input_location, BREAK_STMT)); |
35b1567d BC |
1112 | } |
1113 | ||
ad321293 MM |
1114 | /* Finish a continue-statement. */ |
1115 | ||
3e4d04a1 | 1116 | tree |
3a978d72 | 1117 | finish_continue_stmt (void) |
ad321293 | 1118 | { |
c2255bc4 | 1119 | return add_stmt (build_stmt (input_location, CONTINUE_STMT)); |
ad321293 MM |
1120 | } |
1121 | ||
35b1567d BC |
1122 | /* Begin a switch-statement. Returns a new SWITCH_STMT if |
1123 | appropriate. */ | |
1124 | ||
1125 | tree | |
3a978d72 | 1126 | begin_switch_stmt (void) |
35b1567d | 1127 | { |
325c3691 RH |
1128 | tree r, scope; |
1129 | ||
1eb2a14d | 1130 | scope = do_pushlevel (sk_cond); |
1f18dbc6 NF |
1131 | r = build_stmt (input_location, SWITCH_STMT, NULL_TREE, NULL_TREE, NULL_TREE, scope); |
1132 | ||
ebaae582 | 1133 | begin_cond (&SWITCH_STMT_COND (r)); |
325c3691 | 1134 | |
527f0080 | 1135 | return r; |
ad321293 MM |
1136 | } |
1137 | ||
527f0080 | 1138 | /* Finish the cond of a switch-statement. */ |
ad321293 | 1139 | |
527f0080 | 1140 | void |
3a978d72 | 1141 | finish_switch_cond (tree cond, tree switch_stmt) |
ad321293 | 1142 | { |
6f9fdf4d | 1143 | tree orig_type = NULL; |
14f68c39 AK |
1144 | |
1145 | if (check_no_cilk (cond, | |
1146 | "Cilk array notation cannot be used as a condition for switch statement", | |
1147 | "%<_Cilk_spawn%> statement cannot be used as a condition for switch statement")) | |
1148 | cond = error_mark_node; | |
1149 | ||
35b1567d | 1150 | if (!processing_template_decl) |
373eb3b3 | 1151 | { |
35b1567d | 1152 | /* Convert the condition to an integer or enumeration type. */ |
b746c5dc | 1153 | cond = build_expr_type_conversion (WANT_INT | WANT_ENUM, cond, true); |
35b1567d | 1154 | if (cond == NULL_TREE) |
373eb3b3 | 1155 | { |
35b1567d BC |
1156 | error ("switch quantity not an integer"); |
1157 | cond = error_mark_node; | |
1158 | } | |
083e891e MP |
1159 | /* We want unlowered type here to handle enum bit-fields. */ |
1160 | orig_type = unlowered_expr_type (cond); | |
35b1567d BC |
1161 | if (cond != error_mark_node) |
1162 | { | |
fedfecef MP |
1163 | /* Warn if the condition has boolean value. */ |
1164 | if (TREE_CODE (orig_type) == BOOLEAN_TYPE) | |
1165 | warning_at (input_location, OPT_Wswitch_bool, | |
1166 | "switch condition has type bool"); | |
1167 | ||
0a72704b MM |
1168 | /* [stmt.switch] |
1169 | ||
1170 | Integral promotions are performed. */ | |
1171 | cond = perform_integral_promotions (cond); | |
543a0daa | 1172 | cond = maybe_cleanup_point_expr (cond); |
373eb3b3 | 1173 | } |
ad321293 | 1174 | } |
7b3e2d46 | 1175 | if (check_for_bare_parameter_packs (cond)) |
4439d02f | 1176 | cond = error_mark_node; |
d4033c81 MLI |
1177 | else if (!processing_template_decl && warn_sequence_point) |
1178 | verify_sequence_points (cond); | |
1179 | ||
ebaae582 SB |
1180 | finish_cond (&SWITCH_STMT_COND (switch_stmt), cond); |
1181 | SWITCH_STMT_TYPE (switch_stmt) = orig_type; | |
caf2523d | 1182 | add_stmt (switch_stmt); |
56cb9733 | 1183 | push_switch (switch_stmt); |
ebaae582 | 1184 | SWITCH_STMT_BODY (switch_stmt) = push_stmt_list (); |
ad321293 MM |
1185 | } |
1186 | ||
1187 | /* Finish the body of a switch-statement, which may be given by | |
1188 | SWITCH_STMT. The COND to switch on is indicated. */ | |
1189 | ||
1190 | void | |
3a978d72 | 1191 | finish_switch_stmt (tree switch_stmt) |
ad321293 | 1192 | { |
325c3691 RH |
1193 | tree scope; |
1194 | ||
ebaae582 SB |
1195 | SWITCH_STMT_BODY (switch_stmt) = |
1196 | pop_stmt_list (SWITCH_STMT_BODY (switch_stmt)); | |
c8094d83 | 1197 | pop_switch (); |
325c3691 | 1198 | |
1f18dbc6 NF |
1199 | scope = SWITCH_STMT_SCOPE (switch_stmt); |
1200 | SWITCH_STMT_SCOPE (switch_stmt) = NULL; | |
325c3691 | 1201 | add_stmt (do_poplevel (scope)); |
ad321293 MM |
1202 | } |
1203 | ||
ad321293 MM |
1204 | /* Begin a try-block. Returns a newly-created TRY_BLOCK if |
1205 | appropriate. */ | |
1206 | ||
1207 | tree | |
3a978d72 | 1208 | begin_try_block (void) |
ad321293 | 1209 | { |
c2255bc4 | 1210 | tree r = build_stmt (input_location, TRY_BLOCK, NULL_TREE, NULL_TREE); |
ae499cce | 1211 | add_stmt (r); |
325c3691 | 1212 | TRY_STMTS (r) = push_stmt_list (); |
35b1567d | 1213 | return r; |
ad321293 MM |
1214 | } |
1215 | ||
eaf6fb90 MM |
1216 | /* Likewise, for a function-try-block. The block returned in |
1217 | *COMPOUND_STMT is an artificial outer scope, containing the | |
1218 | function-try-block. */ | |
0dde4175 JM |
1219 | |
1220 | tree | |
eaf6fb90 | 1221 | begin_function_try_block (tree *compound_stmt) |
0dde4175 | 1222 | { |
eaf6fb90 MM |
1223 | tree r; |
1224 | /* This outer scope does not exist in the C++ standard, but we need | |
1225 | a place to put __FUNCTION__ and similar variables. */ | |
1226 | *compound_stmt = begin_compound_stmt (0); | |
1227 | r = begin_try_block (); | |
35b1567d | 1228 | FN_TRY_BLOCK_P (r) = 1; |
35b1567d | 1229 | return r; |
0dde4175 JM |
1230 | } |
1231 | ||
ad321293 MM |
1232 | /* Finish a try-block, which may be given by TRY_BLOCK. */ |
1233 | ||
1234 | void | |
3a978d72 | 1235 | finish_try_block (tree try_block) |
ad321293 | 1236 | { |
325c3691 RH |
1237 | TRY_STMTS (try_block) = pop_stmt_list (TRY_STMTS (try_block)); |
1238 | TRY_HANDLERS (try_block) = push_stmt_list (); | |
ad321293 MM |
1239 | } |
1240 | ||
efa8eda3 MM |
1241 | /* Finish the body of a cleanup try-block, which may be given by |
1242 | TRY_BLOCK. */ | |
1243 | ||
62409b39 | 1244 | void |
3a978d72 | 1245 | finish_cleanup_try_block (tree try_block) |
62409b39 | 1246 | { |
325c3691 | 1247 | TRY_STMTS (try_block) = pop_stmt_list (TRY_STMTS (try_block)); |
62409b39 MM |
1248 | } |
1249 | ||
f1dedc31 MM |
1250 | /* Finish an implicitly generated try-block, with a cleanup is given |
1251 | by CLEANUP. */ | |
1252 | ||
1253 | void | |
3a978d72 | 1254 | finish_cleanup (tree cleanup, tree try_block) |
f1dedc31 | 1255 | { |
35b1567d BC |
1256 | TRY_HANDLERS (try_block) = cleanup; |
1257 | CLEANUP_P (try_block) = 1; | |
f1dedc31 MM |
1258 | } |
1259 | ||
0dde4175 JM |
1260 | /* Likewise, for a function-try-block. */ |
1261 | ||
1262 | void | |
3a978d72 | 1263 | finish_function_try_block (tree try_block) |
0dde4175 | 1264 | { |
325c3691 RH |
1265 | finish_try_block (try_block); |
1266 | /* FIXME : something queer about CTOR_INITIALIZER somehow following | |
1267 | the try block, but moving it inside. */ | |
b35d4555 | 1268 | in_function_try_handler = 1; |
0dde4175 JM |
1269 | } |
1270 | ||
ad321293 MM |
1271 | /* Finish a handler-sequence for a try-block, which may be given by |
1272 | TRY_BLOCK. */ | |
1273 | ||
1274 | void | |
3a978d72 | 1275 | finish_handler_sequence (tree try_block) |
ad321293 | 1276 | { |
325c3691 | 1277 | TRY_HANDLERS (try_block) = pop_stmt_list (TRY_HANDLERS (try_block)); |
35b1567d | 1278 | check_handlers (TRY_HANDLERS (try_block)); |
ad321293 MM |
1279 | } |
1280 | ||
eaf6fb90 MM |
1281 | /* Finish the handler-seq for a function-try-block, given by |
1282 | TRY_BLOCK. COMPOUND_STMT is the outer block created by | |
1283 | begin_function_try_block. */ | |
0dde4175 JM |
1284 | |
1285 | void | |
eaf6fb90 | 1286 | finish_function_handler_sequence (tree try_block, tree compound_stmt) |
0dde4175 | 1287 | { |
b35d4555 | 1288 | in_function_try_handler = 0; |
325c3691 | 1289 | finish_handler_sequence (try_block); |
eaf6fb90 | 1290 | finish_compound_stmt (compound_stmt); |
35b1567d BC |
1291 | } |
1292 | ||
ad321293 MM |
1293 | /* Begin a handler. Returns a HANDLER if appropriate. */ |
1294 | ||
1295 | tree | |
3a978d72 | 1296 | begin_handler (void) |
ad321293 MM |
1297 | { |
1298 | tree r; | |
325c3691 | 1299 | |
c2255bc4 | 1300 | r = build_stmt (input_location, HANDLER, NULL_TREE, NULL_TREE); |
ae499cce | 1301 | add_stmt (r); |
325c3691 | 1302 | |
1a6025b4 JM |
1303 | /* Create a binding level for the eh_info and the exception object |
1304 | cleanup. */ | |
325c3691 RH |
1305 | HANDLER_BODY (r) = do_pushlevel (sk_catch); |
1306 | ||
ad321293 MM |
1307 | return r; |
1308 | } | |
1309 | ||
1310 | /* Finish the handler-parameters for a handler, which may be given by | |
b35d4555 MM |
1311 | HANDLER. DECL is the declaration for the catch parameter, or NULL |
1312 | if this is a `catch (...)' clause. */ | |
ad321293 | 1313 | |
1a6025b4 | 1314 | void |
3a978d72 | 1315 | finish_handler_parms (tree decl, tree handler) |
b35d4555 | 1316 | { |
1a6025b4 | 1317 | tree type = NULL_TREE; |
b35d4555 MM |
1318 | if (processing_template_decl) |
1319 | { | |
1320 | if (decl) | |
1321 | { | |
1322 | decl = pushdecl (decl); | |
1323 | decl = push_template_decl (decl); | |
325c3691 | 1324 | HANDLER_PARMS (handler) = decl; |
1a6025b4 | 1325 | type = TREE_TYPE (decl); |
b35d4555 MM |
1326 | } |
1327 | } | |
35b1567d | 1328 | else |
1a6025b4 | 1329 | type = expand_start_catch_block (decl); |
1a6025b4 | 1330 | HANDLER_TYPE (handler) = type; |
35b1567d BC |
1331 | } |
1332 | ||
1333 | /* Finish a handler, which may be given by HANDLER. The BLOCKs are | |
1334 | the return value from the matching call to finish_handler_parms. */ | |
1335 | ||
1336 | void | |
3a978d72 | 1337 | finish_handler (tree handler) |
35b1567d BC |
1338 | { |
1339 | if (!processing_template_decl) | |
1a6025b4 | 1340 | expand_end_catch_block (); |
325c3691 | 1341 | HANDLER_BODY (handler) = do_poplevel (HANDLER_BODY (handler)); |
35b1567d BC |
1342 | } |
1343 | ||
5882f0f3 | 1344 | /* Begin a compound statement. FLAGS contains some bits that control the |
5995ebfb | 1345 | behavior and context. If BCS_NO_SCOPE is set, the compound statement |
5882f0f3 | 1346 | does not define a scope. If BCS_FN_BODY is set, this is the outermost |
c8094d83 | 1347 | block of a function. If BCS_TRY_BLOCK is set, this is the block |
5882f0f3 RH |
1348 | created on behalf of a TRY statement. Returns a token to be passed to |
1349 | finish_compound_stmt. */ | |
ad321293 MM |
1350 | |
1351 | tree | |
325c3691 | 1352 | begin_compound_stmt (unsigned int flags) |
ad321293 | 1353 | { |
325c3691 | 1354 | tree r; |
558475f0 | 1355 | |
325c3691 RH |
1356 | if (flags & BCS_NO_SCOPE) |
1357 | { | |
1358 | r = push_stmt_list (); | |
1359 | STATEMENT_LIST_NO_SCOPE (r) = 1; | |
1360 | ||
1361 | /* Normally, we try hard to keep the BLOCK for a statement-expression. | |
1362 | But, if it's a statement-expression with a scopeless block, there's | |
1363 | nothing to keep, and we don't want to accidentally keep a block | |
c8094d83 | 1364 | *inside* the scopeless block. */ |
325c3691 RH |
1365 | keep_next_level (false); |
1366 | } | |
f1dedc31 | 1367 | else |
325c3691 RH |
1368 | r = do_pushlevel (flags & BCS_TRY_BLOCK ? sk_try : sk_block); |
1369 | ||
5882f0f3 RH |
1370 | /* When processing a template, we need to remember where the braces were, |
1371 | so that we can set up identical scopes when instantiating the template | |
1372 | later. BIND_EXPR is a handy candidate for this. | |
1373 | Note that do_poplevel won't create a BIND_EXPR itself here (and thus | |
1374 | result in nested BIND_EXPRs), since we don't build BLOCK nodes when | |
1375 | processing templates. */ | |
1376 | if (processing_template_decl) | |
325c3691 | 1377 | { |
f293ce4b | 1378 | r = build3 (BIND_EXPR, NULL, NULL, r, NULL); |
5882f0f3 RH |
1379 | BIND_EXPR_TRY_BLOCK (r) = (flags & BCS_TRY_BLOCK) != 0; |
1380 | BIND_EXPR_BODY_BLOCK (r) = (flags & BCS_FN_BODY) != 0; | |
325c3691 RH |
1381 | TREE_SIDE_EFFECTS (r) = 1; |
1382 | } | |
ad321293 MM |
1383 | |
1384 | return r; | |
1385 | } | |
1386 | ||
5882f0f3 | 1387 | /* Finish a compound-statement, which is given by STMT. */ |
ad321293 | 1388 | |
325c3691 RH |
1389 | void |
1390 | finish_compound_stmt (tree stmt) | |
ad321293 | 1391 | { |
5882f0f3 | 1392 | if (TREE_CODE (stmt) == BIND_EXPR) |
e02927a1 JM |
1393 | { |
1394 | tree body = do_poplevel (BIND_EXPR_BODY (stmt)); | |
1395 | /* If the STATEMENT_LIST is empty and this BIND_EXPR isn't special, | |
1396 | discard the BIND_EXPR so it can be merged with the containing | |
1397 | STATEMENT_LIST. */ | |
1398 | if (TREE_CODE (body) == STATEMENT_LIST | |
1399 | && STATEMENT_LIST_HEAD (body) == NULL | |
1400 | && !BIND_EXPR_BODY_BLOCK (stmt) | |
1401 | && !BIND_EXPR_TRY_BLOCK (stmt)) | |
1402 | stmt = body; | |
1403 | else | |
1404 | BIND_EXPR_BODY (stmt) = body; | |
1405 | } | |
325c3691 RH |
1406 | else if (STATEMENT_LIST_NO_SCOPE (stmt)) |
1407 | stmt = pop_stmt_list (stmt); | |
7a3397c7 | 1408 | else |
5f070bc7 ZL |
1409 | { |
1410 | /* Destroy any ObjC "super" receivers that may have been | |
1411 | created. */ | |
1412 | objc_clear_super_receiver (); | |
1413 | ||
1414 | stmt = do_poplevel (stmt); | |
1415 | } | |
ad321293 | 1416 | |
325c3691 RH |
1417 | /* ??? See c_end_compound_stmt wrt statement expressions. */ |
1418 | add_stmt (stmt); | |
ad321293 MM |
1419 | } |
1420 | ||
6de9cd9a | 1421 | /* Finish an asm-statement, whose components are a STRING, some |
1c384bf1 RH |
1422 | OUTPUT_OPERANDS, some INPUT_OPERANDS, some CLOBBERS and some |
1423 | LABELS. Also note whether the asm-statement should be | |
1424 | considered volatile. */ | |
7dc5bd62 | 1425 | |
3e4d04a1 | 1426 | tree |
6de9cd9a | 1427 | finish_asm_stmt (int volatile_p, tree string, tree output_operands, |
1c384bf1 | 1428 | tree input_operands, tree clobbers, tree labels) |
35b1567d BC |
1429 | { |
1430 | tree r; | |
abfc8a36 | 1431 | tree t; |
5544530a PB |
1432 | int ninputs = list_length (input_operands); |
1433 | int noutputs = list_length (output_operands); | |
abfc8a36 | 1434 | |
abfc8a36 | 1435 | if (!processing_template_decl) |
40b18c0a | 1436 | { |
74f0c611 RH |
1437 | const char *constraint; |
1438 | const char **oconstraints; | |
1439 | bool allows_mem, allows_reg, is_inout; | |
1440 | tree operand; | |
40b18c0a | 1441 | int i; |
40b18c0a | 1442 | |
86b8fed1 | 1443 | oconstraints = XALLOCAVEC (const char *, noutputs); |
74f0c611 RH |
1444 | |
1445 | string = resolve_asm_operand_names (string, output_operands, | |
1c384bf1 | 1446 | input_operands, labels); |
74f0c611 RH |
1447 | |
1448 | for (i = 0, t = output_operands; t; t = TREE_CHAIN (t), ++i) | |
40b18c0a | 1449 | { |
74f0c611 RH |
1450 | operand = TREE_VALUE (t); |
1451 | ||
1452 | /* ??? Really, this should not be here. Users should be using a | |
1453 | proper lvalue, dammit. But there's a long history of using | |
1454 | casts in the output operands. In cases like longlong.h, this | |
1455 | becomes a primitive form of typechecking -- if the cast can be | |
1456 | removed, then the output operand had a type of the proper width; | |
1457 | otherwise we'll get an error. Gross, but ... */ | |
1458 | STRIP_NOPS (operand); | |
1459 | ||
03a904b5 JJ |
1460 | operand = mark_lvalue_use (operand); |
1461 | ||
5ade1ed2 | 1462 | if (!lvalue_or_else (operand, lv_asm, tf_warning_or_error)) |
74f0c611 RH |
1463 | operand = error_mark_node; |
1464 | ||
3db45ab5 | 1465 | if (operand != error_mark_node |
5544530a PB |
1466 | && (TREE_READONLY (operand) |
1467 | || CP_TYPE_CONST_P (TREE_TYPE (operand)) | |
3db45ab5 MS |
1468 | /* Functions are not modifiable, even though they are |
1469 | lvalues. */ | |
1470 | || TREE_CODE (TREE_TYPE (operand)) == FUNCTION_TYPE | |
1471 | || TREE_CODE (TREE_TYPE (operand)) == METHOD_TYPE | |
1472 | /* If it's an aggregate and any field is const, then it is | |
1473 | effectively const. */ | |
1474 | || (CLASS_TYPE_P (TREE_TYPE (operand)) | |
1475 | && C_TYPE_FIELDS_READONLY (TREE_TYPE (operand))))) | |
4816c593 | 1476 | cxx_readonly_error (operand, lv_asm); |
5544530a | 1477 | |
74f0c611 RH |
1478 | constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (t))); |
1479 | oconstraints[i] = constraint; | |
1480 | ||
1481 | if (parse_output_constraint (&constraint, i, ninputs, noutputs, | |
1482 | &allows_mem, &allows_reg, &is_inout)) | |
1483 | { | |
1484 | /* If the operand is going to end up in memory, | |
1485 | mark it addressable. */ | |
1486 | if (!allows_reg && !cxx_mark_addressable (operand)) | |
1487 | operand = error_mark_node; | |
1488 | } | |
1489 | else | |
1490 | operand = error_mark_node; | |
1491 | ||
1492 | TREE_VALUE (t) = operand; | |
1493 | } | |
1494 | ||
1495 | for (i = 0, t = input_operands; t; ++i, t = TREE_CHAIN (t)) | |
1496 | { | |
1497 | constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (t))); | |
0ab19cbc JJ |
1498 | bool constraint_parsed |
1499 | = parse_input_constraint (&constraint, i, ninputs, noutputs, 0, | |
1500 | oconstraints, &allows_mem, &allows_reg); | |
1501 | /* If the operand is going to end up in memory, don't call | |
1502 | decay_conversion. */ | |
1503 | if (constraint_parsed && !allows_reg && allows_mem) | |
1504 | operand = mark_lvalue_use (TREE_VALUE (t)); | |
1505 | else | |
1506 | operand = decay_conversion (TREE_VALUE (t), tf_warning_or_error); | |
74f0c611 | 1507 | |
40b18c0a MM |
1508 | /* If the type of the operand hasn't been determined (e.g., |
1509 | because it involves an overloaded function), then issue | |
1510 | an error message. There's no context available to | |
1511 | resolve the overloading. */ | |
74f0c611 | 1512 | if (TREE_TYPE (operand) == unknown_type_node) |
40b18c0a | 1513 | { |
c8094d83 | 1514 | error ("type of asm operand %qE could not be determined", |
0cbd7506 | 1515 | TREE_VALUE (t)); |
74f0c611 | 1516 | operand = error_mark_node; |
40b18c0a | 1517 | } |
40b18c0a | 1518 | |
0ab19cbc | 1519 | if (constraint_parsed) |
40b18c0a | 1520 | { |
74f0c611 RH |
1521 | /* If the operand is going to end up in memory, |
1522 | mark it addressable. */ | |
b4c33883 AP |
1523 | if (!allows_reg && allows_mem) |
1524 | { | |
1525 | /* Strip the nops as we allow this case. FIXME, this really | |
1526 | should be rejected or made deprecated. */ | |
1527 | STRIP_NOPS (operand); | |
1528 | if (!cxx_mark_addressable (operand)) | |
1529 | operand = error_mark_node; | |
1530 | } | |
6760071f JJ |
1531 | else if (!allows_reg && !allows_mem) |
1532 | { | |
1533 | /* If constraint allows neither register nor memory, | |
1534 | try harder to get a constant. */ | |
1535 | tree constop = maybe_constant_value (operand); | |
1536 | if (TREE_CONSTANT (constop)) | |
1537 | operand = constop; | |
1538 | } | |
40b18c0a | 1539 | } |
74f0c611 RH |
1540 | else |
1541 | operand = error_mark_node; | |
40b18c0a | 1542 | |
74f0c611 | 1543 | TREE_VALUE (t) = operand; |
40b18c0a MM |
1544 | } |
1545 | } | |
abfc8a36 | 1546 | |
c2255bc4 | 1547 | r = build_stmt (input_location, ASM_EXPR, string, |
0dfdeca6 | 1548 | output_operands, input_operands, |
1c384bf1 | 1549 | clobbers, labels); |
5544530a | 1550 | ASM_VOLATILE_P (r) = volatile_p || noutputs == 0; |
0ad28dde | 1551 | r = maybe_cleanup_point_expr_void (r); |
3e4d04a1 | 1552 | return add_stmt (r); |
ad321293 | 1553 | } |
b4c4a9ec | 1554 | |
5bca4e80 | 1555 | /* Finish a label with the indicated NAME. Returns the new label. */ |
f01b0acb | 1556 | |
a723baf1 | 1557 | tree |
3a978d72 | 1558 | finish_label_stmt (tree name) |
f01b0acb | 1559 | { |
5b030314 | 1560 | tree decl = define_label (input_location, name); |
417fa55b | 1561 | |
5bca4e80 | 1562 | if (decl == error_mark_node) |
417fa55b LM |
1563 | return error_mark_node; |
1564 | ||
c2255bc4 | 1565 | add_stmt (build_stmt (input_location, LABEL_EXPR, decl)); |
5bca4e80 ILT |
1566 | |
1567 | return decl; | |
f01b0acb MM |
1568 | } |
1569 | ||
acef433b MM |
1570 | /* Finish a series of declarations for local labels. G++ allows users |
1571 | to declare "local" labels, i.e., labels with scope. This extension | |
1572 | is useful when writing code involving statement-expressions. */ | |
1573 | ||
1574 | void | |
3a978d72 | 1575 | finish_label_decl (tree name) |
acef433b | 1576 | { |
a6d76a95 PC |
1577 | if (!at_function_scope_p ()) |
1578 | { | |
1579 | error ("__label__ declarations are only allowed in function scopes"); | |
1580 | return; | |
1581 | } | |
1582 | ||
1583 | add_decl_expr (declare_local_label (name)); | |
acef433b MM |
1584 | } |
1585 | ||
659e5a7a | 1586 | /* When DECL goes out of scope, make sure that CLEANUP is executed. */ |
f1dedc31 | 1587 | |
c8094d83 | 1588 | void |
3a978d72 | 1589 | finish_decl_cleanup (tree decl, tree cleanup) |
f1dedc31 | 1590 | { |
325c3691 | 1591 | push_cleanup (decl, cleanup, false); |
35b1567d BC |
1592 | } |
1593 | ||
659e5a7a | 1594 | /* If the current scope exits with an exception, run CLEANUP. */ |
24bef158 | 1595 | |
659e5a7a | 1596 | void |
3a978d72 | 1597 | finish_eh_cleanup (tree cleanup) |
24bef158 | 1598 | { |
325c3691 | 1599 | push_cleanup (NULL, cleanup, true); |
35b1567d BC |
1600 | } |
1601 | ||
2282d28d MM |
1602 | /* The MEM_INITS is a list of mem-initializers, in reverse of the |
1603 | order they were written by the user. Each node is as for | |
1604 | emit_mem_initializers. */ | |
bf3428d0 MM |
1605 | |
1606 | void | |
2282d28d | 1607 | finish_mem_initializers (tree mem_inits) |
bf3428d0 | 1608 | { |
2282d28d MM |
1609 | /* Reorder the MEM_INITS so that they are in the order they appeared |
1610 | in the source program. */ | |
1611 | mem_inits = nreverse (mem_inits); | |
bf3428d0 | 1612 | |
a0de9d20 | 1613 | if (processing_template_decl) |
5d80a306 DG |
1614 | { |
1615 | tree mem; | |
1616 | ||
1617 | for (mem = mem_inits; mem; mem = TREE_CHAIN (mem)) | |
1618 | { | |
1619 | /* If the TREE_PURPOSE is a TYPE_PACK_EXPANSION, skip the | |
1620 | check for bare parameter packs in the TREE_VALUE, because | |
1621 | any parameter packs in the TREE_VALUE have already been | |
1622 | bound as part of the TREE_PURPOSE. See | |
1623 | make_pack_expansion for more information. */ | |
4439d02f | 1624 | if (TREE_CODE (TREE_PURPOSE (mem)) != TYPE_PACK_EXPANSION |
7b3e2d46 | 1625 | && check_for_bare_parameter_packs (TREE_VALUE (mem))) |
4439d02f | 1626 | TREE_VALUE (mem) = error_mark_node; |
5d80a306 DG |
1627 | } |
1628 | ||
f330f599 PC |
1629 | add_stmt (build_min_nt_loc (UNKNOWN_LOCATION, |
1630 | CTOR_INITIALIZER, mem_inits)); | |
5d80a306 | 1631 | } |
cdd2559c | 1632 | else |
2282d28d | 1633 | emit_mem_initializers (mem_inits); |
558475f0 MM |
1634 | } |
1635 | ||
10c6dc8e JM |
1636 | /* Obfuscate EXPR if it looks like an id-expression or member access so |
1637 | that the call to finish_decltype in do_auto_deduction will give the | |
1638 | right result. */ | |
1639 | ||
1640 | tree | |
1641 | force_paren_expr (tree expr) | |
1642 | { | |
1643 | /* This is only needed for decltype(auto) in C++14. */ | |
e4276ba5 | 1644 | if (cxx_dialect < cxx14) |
10c6dc8e JM |
1645 | return expr; |
1646 | ||
0e4cf887 JM |
1647 | /* If we're in unevaluated context, we can't be deducing a |
1648 | return/initializer type, so we don't need to mess with this. */ | |
1649 | if (cp_unevaluated_operand) | |
1650 | return expr; | |
1651 | ||
10c6dc8e JM |
1652 | if (!DECL_P (expr) && TREE_CODE (expr) != COMPONENT_REF |
1653 | && TREE_CODE (expr) != SCOPE_REF) | |
1654 | return expr; | |
1655 | ||
0e4cf887 JM |
1656 | if (TREE_CODE (expr) == COMPONENT_REF) |
1657 | REF_PARENTHESIZED_P (expr) = true; | |
1658 | else if (type_dependent_expression_p (expr)) | |
10c6dc8e JM |
1659 | expr = build1 (PAREN_EXPR, TREE_TYPE (expr), expr); |
1660 | else | |
1661 | { | |
1662 | cp_lvalue_kind kind = lvalue_kind (expr); | |
1663 | if ((kind & ~clk_class) != clk_none) | |
1664 | { | |
1665 | tree type = unlowered_expr_type (expr); | |
1666 | bool rval = !!(kind & clk_rvalueref); | |
1667 | type = cp_build_reference_type (type, rval); | |
6e4992ca PC |
1668 | /* This inhibits warnings in, eg, cxx_mark_addressable |
1669 | (c++/60955). */ | |
1670 | warning_sentinel s (extra_warnings); | |
0e4cf887 | 1671 | expr = build_static_cast (type, expr, tf_error); |
96e780c0 JM |
1672 | if (expr != error_mark_node) |
1673 | REF_PARENTHESIZED_P (expr) = true; | |
10c6dc8e JM |
1674 | } |
1675 | } | |
1676 | ||
1677 | return expr; | |
1678 | } | |
1679 | ||
b4c4a9ec MM |
1680 | /* Finish a parenthesized expression EXPR. */ |
1681 | ||
1682 | tree | |
3a978d72 | 1683 | finish_parenthesized_expr (tree expr) |
b4c4a9ec | 1684 | { |
6615c446 | 1685 | if (EXPR_P (expr)) |
78ef5b89 | 1686 | /* This inhibits warnings in c_common_truthvalue_conversion. */ |
31ec7d2f | 1687 | TREE_NO_WARNING (expr) = 1; |
b4c4a9ec | 1688 | |
d816a3ba JM |
1689 | if (TREE_CODE (expr) == OFFSET_REF |
1690 | || TREE_CODE (expr) == SCOPE_REF) | |
19420d00 NS |
1691 | /* [expr.unary.op]/3 The qualified id of a pointer-to-member must not be |
1692 | enclosed in parentheses. */ | |
1693 | PTRMEM_OK_P (expr) = 0; | |
c8094d83 | 1694 | |
7a8380ae NS |
1695 | if (TREE_CODE (expr) == STRING_CST) |
1696 | PAREN_STRING_LITERAL_P (expr) = 1; | |
c8094d83 | 1697 | |
10c6dc8e JM |
1698 | expr = force_paren_expr (expr); |
1699 | ||
b4c4a9ec MM |
1700 | return expr; |
1701 | } | |
1702 | ||
a723baf1 MM |
1703 | /* Finish a reference to a non-static data member (DECL) that is not |
1704 | preceded by `.' or `->'. */ | |
1705 | ||
1706 | tree | |
a3f10e50 | 1707 | finish_non_static_data_member (tree decl, tree object, tree qualifying_scope) |
a723baf1 | 1708 | { |
50bc768d | 1709 | gcc_assert (TREE_CODE (decl) == FIELD_DECL); |
a723baf1 | 1710 | |
2defb926 | 1711 | if (!object) |
51fc2d02 | 1712 | { |
51fc2d02 JM |
1713 | tree scope = qualifying_scope; |
1714 | if (scope == NULL_TREE) | |
1715 | scope = context_for_name_lookup (decl); | |
1716 | object = maybe_dummy_object (scope, NULL); | |
1717 | } | |
1718 | ||
0b360a07 | 1719 | object = maybe_resolve_dummy (object, true); |
1496e7d6 PC |
1720 | if (object == error_mark_node) |
1721 | return error_mark_node; | |
1722 | ||
e2254932 | 1723 | /* DR 613/850: Can use non-static data members without an associated |
2defb926 JM |
1724 | object in sizeof/decltype/alignof. */ |
1725 | if (is_dummy_object (object) && cp_unevaluated_operand == 0 | |
1726 | && (!processing_template_decl || !current_class_ref)) | |
a723baf1 | 1727 | { |
c8094d83 | 1728 | if (current_function_decl |
a723baf1 | 1729 | && DECL_STATIC_FUNCTION_P (current_function_decl)) |
6863c41a | 1730 | error ("invalid use of member %qD in static member function", decl); |
a723baf1 | 1731 | else |
6863c41a JM |
1732 | error ("invalid use of non-static data member %qD", decl); |
1733 | inform (DECL_SOURCE_LOCATION (decl), "declared here"); | |
a723baf1 MM |
1734 | |
1735 | return error_mark_node; | |
1736 | } | |
d5f4eddd | 1737 | |
51fc2d02 JM |
1738 | if (current_class_ptr) |
1739 | TREE_USED (current_class_ptr) = 1; | |
58e1d54c | 1740 | if (processing_template_decl && !qualifying_scope) |
a723baf1 | 1741 | { |
a3f10e50 | 1742 | tree type = TREE_TYPE (decl); |
a723baf1 | 1743 | |
a3f10e50 | 1744 | if (TREE_CODE (type) == REFERENCE_TYPE) |
2516ccfe | 1745 | /* Quals on the object don't matter. */; |
2993d08a JM |
1746 | else if (PACK_EXPANSION_P (type)) |
1747 | /* Don't bother trying to represent this. */ | |
1748 | type = NULL_TREE; | |
a3f10e50 NS |
1749 | else |
1750 | { | |
f4f206f4 | 1751 | /* Set the cv qualifiers. */ |
bab5167f | 1752 | int quals = cp_type_quals (TREE_TYPE (object)); |
c8094d83 | 1753 | |
a3f10e50 NS |
1754 | if (DECL_MUTABLE_P (decl)) |
1755 | quals &= ~TYPE_QUAL_CONST; | |
9e95d15f | 1756 | |
a3f10e50 NS |
1757 | quals |= cp_type_quals (TREE_TYPE (decl)); |
1758 | type = cp_build_qualified_type (type, quals); | |
1759 | } | |
c8094d83 | 1760 | |
2516ccfe JM |
1761 | return (convert_from_reference |
1762 | (build_min (COMPONENT_REF, type, object, decl, NULL_TREE))); | |
a3f10e50 | 1763 | } |
ab11c13f JM |
1764 | /* If PROCESSING_TEMPLATE_DECL is nonzero here, then |
1765 | QUALIFYING_SCOPE is also non-null. Wrap this in a SCOPE_REF | |
1766 | for now. */ | |
1767 | else if (processing_template_decl) | |
1768 | return build_qualified_name (TREE_TYPE (decl), | |
1769 | qualifying_scope, | |
c5c8755a | 1770 | decl, |
ab11c13f | 1771 | /*template_p=*/false); |
a3f10e50 NS |
1772 | else |
1773 | { | |
1774 | tree access_type = TREE_TYPE (object); | |
9f01ded6 | 1775 | |
02022f3a | 1776 | perform_or_defer_access_check (TYPE_BINFO (access_type), decl, |
0e69fdf0 | 1777 | decl, tf_warning_or_error); |
a723baf1 MM |
1778 | |
1779 | /* If the data member was named `C::M', convert `*this' to `C' | |
1780 | first. */ | |
1781 | if (qualifying_scope) | |
1782 | { | |
1783 | tree binfo = NULL_TREE; | |
1784 | object = build_scoped_ref (object, qualifying_scope, | |
1785 | &binfo); | |
1786 | } | |
1787 | ||
1788 | return build_class_member_access_expr (object, decl, | |
1789 | /*access_path=*/NULL_TREE, | |
5ade1ed2 DG |
1790 | /*preserve_reference=*/false, |
1791 | tf_warning_or_error); | |
a723baf1 MM |
1792 | } |
1793 | } | |
1794 | ||
aa373032 DS |
1795 | /* If we are currently parsing a template and we encountered a typedef |
1796 | TYPEDEF_DECL that is being accessed though CONTEXT, this function | |
1797 | adds the typedef to a list tied to the current template. | |
b52259e1 | 1798 | At template instantiation time, that list is walked and access check |
aa373032 DS |
1799 | performed for each typedef. |
1800 | LOCATION is the location of the usage point of TYPEDEF_DECL. */ | |
1801 | ||
1802 | void | |
1803 | add_typedef_to_current_template_for_access_check (tree typedef_decl, | |
1804 | tree context, | |
1805 | location_t location) | |
1806 | { | |
1807 | tree template_info = NULL; | |
1808 | tree cs = current_scope (); | |
1809 | ||
1810 | if (!is_typedef_decl (typedef_decl) | |
1811 | || !context | |
1812 | || !CLASS_TYPE_P (context) | |
1813 | || !cs) | |
1814 | return; | |
1815 | ||
1816 | if (CLASS_TYPE_P (cs) || TREE_CODE (cs) == FUNCTION_DECL) | |
1817 | template_info = get_template_info (cs); | |
1818 | ||
1819 | if (template_info | |
1820 | && TI_TEMPLATE (template_info) | |
1821 | && !currently_open_class (context)) | |
1822 | append_type_to_template_for_access_check (cs, typedef_decl, | |
1823 | context, location); | |
1824 | } | |
1825 | ||
ee76b931 MM |
1826 | /* DECL was the declaration to which a qualified-id resolved. Issue |
1827 | an error message if it is not accessible. If OBJECT_TYPE is | |
1828 | non-NULL, we have just seen `x->' or `x.' and OBJECT_TYPE is the | |
1829 | type of `*x', or `x', respectively. If the DECL was named as | |
1830 | `A::B' then NESTED_NAME_SPECIFIER is `A'. */ | |
1831 | ||
1832 | void | |
c8094d83 MS |
1833 | check_accessibility_of_qualified_id (tree decl, |
1834 | tree object_type, | |
ee76b931 MM |
1835 | tree nested_name_specifier) |
1836 | { | |
1837 | tree scope; | |
1838 | tree qualifying_type = NULL_TREE; | |
95b4aca6 | 1839 | |
d0940d56 DS |
1840 | /* If we are parsing a template declaration and if decl is a typedef, |
1841 | add it to a list tied to the template. | |
1842 | At template instantiation time, that list will be walked and | |
1843 | access check performed. */ | |
aa373032 DS |
1844 | add_typedef_to_current_template_for_access_check (decl, |
1845 | nested_name_specifier | |
1846 | ? nested_name_specifier | |
1847 | : DECL_CONTEXT (decl), | |
1848 | input_location); | |
d0940d56 | 1849 | |
77880ae4 | 1850 | /* If we're not checking, return immediately. */ |
95b4aca6 NS |
1851 | if (deferred_access_no_check) |
1852 | return; | |
c8094d83 | 1853 | |
ee76b931 MM |
1854 | /* Determine the SCOPE of DECL. */ |
1855 | scope = context_for_name_lookup (decl); | |
1856 | /* If the SCOPE is not a type, then DECL is not a member. */ | |
1857 | if (!TYPE_P (scope)) | |
1858 | return; | |
1859 | /* Compute the scope through which DECL is being accessed. */ | |
c8094d83 | 1860 | if (object_type |
ee76b931 MM |
1861 | /* OBJECT_TYPE might not be a class type; consider: |
1862 | ||
1863 | class A { typedef int I; }; | |
1864 | I *p; | |
1865 | p->A::I::~I(); | |
1866 | ||
0cbd7506 | 1867 | In this case, we will have "A::I" as the DECL, but "I" as the |
ee76b931 MM |
1868 | OBJECT_TYPE. */ |
1869 | && CLASS_TYPE_P (object_type) | |
1870 | && DERIVED_FROM_P (scope, object_type)) | |
1871 | /* If we are processing a `->' or `.' expression, use the type of the | |
1872 | left-hand side. */ | |
1873 | qualifying_type = object_type; | |
1874 | else if (nested_name_specifier) | |
1875 | { | |
1876 | /* If the reference is to a non-static member of the | |
1877 | current class, treat it as if it were referenced through | |
1878 | `this'. */ | |
adb50dfb | 1879 | tree ct; |
ee76b931 MM |
1880 | if (DECL_NONSTATIC_MEMBER_P (decl) |
1881 | && current_class_ptr | |
adb50dfb VV |
1882 | && DERIVED_FROM_P (scope, ct = current_nonlambda_class_type ())) |
1883 | qualifying_type = ct; | |
ee76b931 MM |
1884 | /* Otherwise, use the type indicated by the |
1885 | nested-name-specifier. */ | |
1886 | else | |
1887 | qualifying_type = nested_name_specifier; | |
1888 | } | |
1889 | else | |
1890 | /* Otherwise, the name must be from the current class or one of | |
1891 | its bases. */ | |
1892 | qualifying_type = currently_open_derived_class (scope); | |
1893 | ||
fc429748 MM |
1894 | if (qualifying_type |
1895 | /* It is possible for qualifying type to be a TEMPLATE_TYPE_PARM | |
1896 | or similar in a default argument value. */ | |
1897 | && CLASS_TYPE_P (qualifying_type) | |
1898 | && !dependent_type_p (qualifying_type)) | |
02022f3a | 1899 | perform_or_defer_access_check (TYPE_BINFO (qualifying_type), decl, |
0e69fdf0 | 1900 | decl, tf_warning_or_error); |
ee76b931 MM |
1901 | } |
1902 | ||
1903 | /* EXPR is the result of a qualified-id. The QUALIFYING_CLASS was the | |
1904 | class named to the left of the "::" operator. DONE is true if this | |
1905 | expression is a complete postfix-expression; it is false if this | |
1906 | expression is followed by '->', '[', '(', etc. ADDRESS_P is true | |
02ed62dd MM |
1907 | iff this expression is the operand of '&'. TEMPLATE_P is true iff |
1908 | the qualified-id was of the form "A::template B". TEMPLATE_ARG_P | |
1909 | is true iff this qualified name appears as a template argument. */ | |
ee76b931 MM |
1910 | |
1911 | tree | |
3db45ab5 MS |
1912 | finish_qualified_id_expr (tree qualifying_class, |
1913 | tree expr, | |
02ed62dd | 1914 | bool done, |
3db45ab5 | 1915 | bool address_p, |
02ed62dd | 1916 | bool template_p, |
a378996b PC |
1917 | bool template_arg_p, |
1918 | tsubst_flags_t complain) | |
ee76b931 | 1919 | { |
d4f0f205 MM |
1920 | gcc_assert (TYPE_P (qualifying_class)); |
1921 | ||
5e08432e MM |
1922 | if (error_operand_p (expr)) |
1923 | return error_mark_node; | |
1924 | ||
2e649151 PC |
1925 | if ((DECL_P (expr) || BASELINK_P (expr)) |
1926 | && !mark_used (expr, complain)) | |
1927 | return error_mark_node; | |
d4f0f205 | 1928 | |
02ed62dd MM |
1929 | if (template_p) |
1930 | check_template_keyword (expr); | |
1931 | ||
ee76b931 MM |
1932 | /* If EXPR occurs as the operand of '&', use special handling that |
1933 | permits a pointer-to-member. */ | |
1934 | if (address_p && done) | |
1935 | { | |
1936 | if (TREE_CODE (expr) == SCOPE_REF) | |
1937 | expr = TREE_OPERAND (expr, 1); | |
c8094d83 | 1938 | expr = build_offset_ref (qualifying_class, expr, |
a378996b | 1939 | /*address_p=*/true, complain); |
ee76b931 MM |
1940 | return expr; |
1941 | } | |
1942 | ||
d348f172 JM |
1943 | /* No need to check access within an enum. */ |
1944 | if (TREE_CODE (qualifying_class) == ENUMERAL_TYPE) | |
1945 | return expr; | |
1946 | ||
02ed62dd MM |
1947 | /* Within the scope of a class, turn references to non-static |
1948 | members into expression of the form "this->...". */ | |
1949 | if (template_arg_p) | |
1950 | /* But, within a template argument, we do not want make the | |
1951 | transformation, as there is no "this" pointer. */ | |
1952 | ; | |
1953 | else if (TREE_CODE (expr) == FIELD_DECL) | |
43854f72 SB |
1954 | { |
1955 | push_deferring_access_checks (dk_no_check); | |
2defb926 | 1956 | expr = finish_non_static_data_member (expr, NULL_TREE, |
43854f72 SB |
1957 | qualifying_class); |
1958 | pop_deferring_access_checks (); | |
1959 | } | |
ee76b931 MM |
1960 | else if (BASELINK_P (expr) && !processing_template_decl) |
1961 | { | |
ee76b931 | 1962 | /* See if any of the functions are non-static members. */ |
7e361ae6 | 1963 | /* If so, the expression may be relative to 'this'. */ |
294e855f | 1964 | if (!shared_member_p (expr) |
0ef811d7 JM |
1965 | && current_class_ptr |
1966 | && DERIVED_FROM_P (qualifying_class, | |
1967 | current_nonlambda_class_type ())) | |
c8094d83 | 1968 | expr = (build_class_member_access_expr |
0ef811d7 | 1969 | (maybe_dummy_object (qualifying_class, NULL), |
ee76b931 MM |
1970 | expr, |
1971 | BASELINK_ACCESS_BINFO (expr), | |
5ade1ed2 | 1972 | /*preserve_reference=*/false, |
a378996b | 1973 | complain)); |
ee76b931 | 1974 | else if (done) |
a5ac359a MM |
1975 | /* The expression is a qualified name whose address is not |
1976 | being taken. */ | |
a378996b PC |
1977 | expr = build_offset_ref (qualifying_class, expr, /*address_p=*/false, |
1978 | complain); | |
ee76b931 | 1979 | } |
e467c9d2 JM |
1980 | else if (BASELINK_P (expr)) |
1981 | ; | |
1982 | else | |
1983 | { | |
e467c9d2 JM |
1984 | /* In a template, return a SCOPE_REF for most qualified-ids |
1985 | so that we can check access at instantiation time. But if | |
1986 | we're looking at a member of the current instantiation, we | |
1987 | know we have access and building up the SCOPE_REF confuses | |
1988 | non-type template argument handling. */ | |
1989 | if (processing_template_decl | |
1990 | && !currently_open_class (qualifying_class)) | |
1991 | expr = build_qualified_name (TREE_TYPE (expr), | |
1992 | qualifying_class, expr, | |
1993 | template_p); | |
1e8671f7 JM |
1994 | |
1995 | expr = convert_from_reference (expr); | |
e467c9d2 | 1996 | } |
ee76b931 MM |
1997 | |
1998 | return expr; | |
1999 | } | |
2000 | ||
b69b1501 MM |
2001 | /* Begin a statement-expression. The value returned must be passed to |
2002 | finish_stmt_expr. */ | |
b4c4a9ec | 2003 | |
c8094d83 | 2004 | tree |
3a978d72 | 2005 | begin_stmt_expr (void) |
b4c4a9ec | 2006 | { |
325c3691 | 2007 | return push_stmt_list (); |
35b1567d BC |
2008 | } |
2009 | ||
a5bcc582 | 2010 | /* Process the final expression of a statement expression. EXPR can be |
85a56c9d MM |
2011 | NULL, if the final expression is empty. Return a STATEMENT_LIST |
2012 | containing all the statements in the statement-expression, or | |
2013 | ERROR_MARK_NODE if there was an error. */ | |
a5bcc582 NS |
2014 | |
2015 | tree | |
325c3691 | 2016 | finish_stmt_expr_expr (tree expr, tree stmt_expr) |
a5bcc582 | 2017 | { |
72e4661a | 2018 | if (error_operand_p (expr)) |
76b9a2a1 AP |
2019 | { |
2020 | /* The type of the statement-expression is the type of the last | |
2021 | expression. */ | |
2022 | TREE_TYPE (stmt_expr) = error_mark_node; | |
2023 | return error_mark_node; | |
2024 | } | |
c8094d83 | 2025 | |
85a56c9d | 2026 | /* If the last statement does not have "void" type, then the value |
3db45ab5 | 2027 | of the last statement is the value of the entire expression. */ |
a5bcc582 NS |
2028 | if (expr) |
2029 | { | |
c6c7698d JM |
2030 | tree type = TREE_TYPE (expr); |
2031 | ||
2032 | if (processing_template_decl) | |
2033 | { | |
c2255bc4 | 2034 | expr = build_stmt (input_location, EXPR_STMT, expr); |
c6c7698d JM |
2035 | expr = add_stmt (expr); |
2036 | /* Mark the last statement so that we can recognize it as such at | |
2037 | template-instantiation time. */ | |
2038 | EXPR_STMT_STMT_EXPR_RESULT (expr) = 1; | |
2039 | } | |
2040 | else if (VOID_TYPE_P (type)) | |
a5bcc582 | 2041 | { |
c6c7698d JM |
2042 | /* Just treat this like an ordinary statement. */ |
2043 | expr = finish_expr_stmt (expr); | |
2044 | } | |
2045 | else | |
2046 | { | |
2047 | /* It actually has a value we need to deal with. First, force it | |
2048 | to be an rvalue so that we won't need to build up a copy | |
2049 | constructor call later when we try to assign it to something. */ | |
574cfaa4 | 2050 | expr = force_rvalue (expr, tf_warning_or_error); |
85a56c9d MM |
2051 | if (error_operand_p (expr)) |
2052 | return error_mark_node; | |
c6c7698d JM |
2053 | |
2054 | /* Update for array-to-pointer decay. */ | |
2692eb7d | 2055 | type = TREE_TYPE (expr); |
c6c7698d JM |
2056 | |
2057 | /* Wrap it in a CLEANUP_POINT_EXPR and add it to the list like a | |
2058 | normal statement, but don't convert to void or actually add | |
2059 | the EXPR_STMT. */ | |
2060 | if (TREE_CODE (expr) != CLEANUP_POINT_EXPR) | |
2061 | expr = maybe_cleanup_point_expr (expr); | |
2062 | add_stmt (expr); | |
85a56c9d | 2063 | } |
c6c7698d | 2064 | |
85a56c9d MM |
2065 | /* The type of the statement-expression is the type of the last |
2066 | expression. */ | |
2067 | TREE_TYPE (stmt_expr) = type; | |
a5bcc582 | 2068 | } |
c8094d83 | 2069 | |
85a56c9d | 2070 | return stmt_expr; |
a5bcc582 NS |
2071 | } |
2072 | ||
303b7406 NS |
2073 | /* Finish a statement-expression. EXPR should be the value returned |
2074 | by the previous begin_stmt_expr. Returns an expression | |
2075 | representing the statement-expression. */ | |
b4c4a9ec | 2076 | |
c8094d83 | 2077 | tree |
325c3691 | 2078 | finish_stmt_expr (tree stmt_expr, bool has_no_scope) |
b4c4a9ec | 2079 | { |
85a56c9d MM |
2080 | tree type; |
2081 | tree result; | |
325c3691 | 2082 | |
85a56c9d | 2083 | if (error_operand_p (stmt_expr)) |
d7b5fa31 JJ |
2084 | { |
2085 | pop_stmt_list (stmt_expr); | |
2086 | return error_mark_node; | |
2087 | } | |
325c3691 | 2088 | |
85a56c9d | 2089 | gcc_assert (TREE_CODE (stmt_expr) == STATEMENT_LIST); |
325c3691 | 2090 | |
85a56c9d MM |
2091 | type = TREE_TYPE (stmt_expr); |
2092 | result = pop_stmt_list (stmt_expr); | |
c6c7698d | 2093 | TREE_TYPE (result) = type; |
6f80451c | 2094 | |
a5bcc582 | 2095 | if (processing_template_decl) |
325c3691 RH |
2096 | { |
2097 | result = build_min (STMT_EXPR, type, result); | |
2098 | TREE_SIDE_EFFECTS (result) = 1; | |
2099 | STMT_EXPR_NO_SCOPE (result) = has_no_scope; | |
2100 | } | |
c6c7698d | 2101 | else if (CLASS_TYPE_P (type)) |
a5bcc582 | 2102 | { |
c6c7698d JM |
2103 | /* Wrap the statement-expression in a TARGET_EXPR so that the |
2104 | temporary object created by the final expression is destroyed at | |
2105 | the end of the full-expression containing the | |
2106 | statement-expression. */ | |
574cfaa4 | 2107 | result = force_target_expr (type, result, tf_warning_or_error); |
a5bcc582 | 2108 | } |
325c3691 | 2109 | |
b4c4a9ec MM |
2110 | return result; |
2111 | } | |
2112 | ||
c2acde1e JM |
2113 | /* Returns the expression which provides the value of STMT_EXPR. */ |
2114 | ||
2115 | tree | |
2116 | stmt_expr_value_expr (tree stmt_expr) | |
2117 | { | |
2118 | tree t = STMT_EXPR_STMT (stmt_expr); | |
2119 | ||
2120 | if (TREE_CODE (t) == BIND_EXPR) | |
2121 | t = BIND_EXPR_BODY (t); | |
2122 | ||
9de0e916 | 2123 | if (TREE_CODE (t) == STATEMENT_LIST && STATEMENT_LIST_TAIL (t)) |
c2acde1e JM |
2124 | t = STATEMENT_LIST_TAIL (t)->stmt; |
2125 | ||
2126 | if (TREE_CODE (t) == EXPR_STMT) | |
2127 | t = EXPR_STMT_EXPR (t); | |
2128 | ||
2129 | return t; | |
2130 | } | |
2131 | ||
9af66ed1 DS |
2132 | /* Return TRUE iff EXPR_STMT is an empty list of |
2133 | expression statements. */ | |
2134 | ||
2135 | bool | |
2136 | empty_expr_stmt_p (tree expr_stmt) | |
2137 | { | |
2138 | tree body = NULL_TREE; | |
2139 | ||
632f2871 | 2140 | if (expr_stmt == void_node) |
489df541 DS |
2141 | return true; |
2142 | ||
9af66ed1 DS |
2143 | if (expr_stmt) |
2144 | { | |
2145 | if (TREE_CODE (expr_stmt) == EXPR_STMT) | |
2146 | body = EXPR_STMT_EXPR (expr_stmt); | |
2147 | else if (TREE_CODE (expr_stmt) == STATEMENT_LIST) | |
2148 | body = expr_stmt; | |
2149 | } | |
2150 | ||
489df541 DS |
2151 | if (body) |
2152 | { | |
2153 | if (TREE_CODE (body) == STATEMENT_LIST) | |
2154 | return tsi_end_p (tsi_start (body)); | |
2155 | else | |
2156 | return empty_expr_stmt_p (body); | |
2157 | } | |
9af66ed1 DS |
2158 | return false; |
2159 | } | |
2160 | ||
b3445994 | 2161 | /* Perform Koenig lookup. FN is the postfix-expression representing |
fa531100 | 2162 | the function (or functions) to call; ARGS are the arguments to the |
cdc23b1b | 2163 | call. Returns the functions to be considered by overload resolution. */ |
b3445994 MM |
2164 | |
2165 | tree | |
cdc23b1b | 2166 | perform_koenig_lookup (tree fn, vec<tree, va_gc> *args, |
94df301f | 2167 | tsubst_flags_t complain) |
b3445994 MM |
2168 | { |
2169 | tree identifier = NULL_TREE; | |
2170 | tree functions = NULL_TREE; | |
d095e03c | 2171 | tree tmpl_args = NULL_TREE; |
4e6a9725 | 2172 | bool template_id = false; |
d095e03c JM |
2173 | |
2174 | if (TREE_CODE (fn) == TEMPLATE_ID_EXPR) | |
2175 | { | |
4e6a9725 JM |
2176 | /* Use a separate flag to handle null args. */ |
2177 | template_id = true; | |
d095e03c JM |
2178 | tmpl_args = TREE_OPERAND (fn, 1); |
2179 | fn = TREE_OPERAND (fn, 0); | |
2180 | } | |
b3445994 MM |
2181 | |
2182 | /* Find the name of the overloaded function. */ | |
9dc6f476 | 2183 | if (identifier_p (fn)) |
b3445994 MM |
2184 | identifier = fn; |
2185 | else if (is_overloaded_fn (fn)) | |
2186 | { | |
2187 | functions = fn; | |
2188 | identifier = DECL_NAME (get_first_fn (functions)); | |
2189 | } | |
2190 | else if (DECL_P (fn)) | |
2191 | { | |
2192 | functions = fn; | |
2193 | identifier = DECL_NAME (fn); | |
2194 | } | |
2195 | ||
2196 | /* A call to a namespace-scope function using an unqualified name. | |
2197 | ||
2198 | Do Koenig lookup -- unless any of the arguments are | |
2199 | type-dependent. */ | |
d095e03c JM |
2200 | if (!any_type_dependent_arguments_p (args) |
2201 | && !any_dependent_template_arguments_p (tmpl_args)) | |
b3445994 | 2202 | { |
cdc23b1b | 2203 | fn = lookup_arg_dependent (identifier, functions, args); |
b3445994 | 2204 | if (!fn) |
94df301f JM |
2205 | { |
2206 | /* The unqualified name could not be resolved. */ | |
2207 | if (complain) | |
2208 | fn = unqualified_fn_lookup_error (identifier); | |
2209 | else | |
2210 | fn = identifier; | |
2211 | } | |
b3445994 | 2212 | } |
b3445994 | 2213 | |
4e6a9725 JM |
2214 | if (fn && template_id) |
2215 | fn = build2 (TEMPLATE_ID_EXPR, unknown_type_node, fn, tmpl_args); | |
d095e03c | 2216 | |
b3445994 MM |
2217 | return fn; |
2218 | } | |
2219 | ||
c166b898 ILT |
2220 | /* Generate an expression for `FN (ARGS)'. This may change the |
2221 | contents of ARGS. | |
4ba126e4 MM |
2222 | |
2223 | If DISALLOW_VIRTUAL is true, the call to FN will be not generated | |
2224 | as a virtual call, even if FN is virtual. (This flag is set when | |
2225 | encountering an expression where the function name is explicitly | |
2226 | qualified. For example a call to `X::f' never generates a virtual | |
2227 | call.) | |
2228 | ||
2229 | Returns code for the call. */ | |
b4c4a9ec | 2230 | |
c8094d83 | 2231 | tree |
9771b263 | 2232 | finish_call_expr (tree fn, vec<tree, va_gc> **args, bool disallow_virtual, |
c166b898 | 2233 | bool koenig_p, tsubst_flags_t complain) |
b4c4a9ec | 2234 | { |
d17811fd MM |
2235 | tree result; |
2236 | tree orig_fn; | |
9771b263 | 2237 | vec<tree, va_gc> *orig_args = NULL; |
d17811fd | 2238 | |
c166b898 | 2239 | if (fn == error_mark_node) |
4ba126e4 MM |
2240 | return error_mark_node; |
2241 | ||
4860b874 | 2242 | gcc_assert (!TYPE_P (fn)); |
a759e627 | 2243 | |
d17811fd | 2244 | orig_fn = fn; |
d17811fd MM |
2245 | |
2246 | if (processing_template_decl) | |
2247 | { | |
1770aeed DS |
2248 | /* If the call expression is dependent, build a CALL_EXPR node |
2249 | with no type; type_dependent_expression_p recognizes | |
2250 | expressions with no type as being dependent. */ | |
d17811fd | 2251 | if (type_dependent_expression_p (fn) |
1770aeed | 2252 | || any_type_dependent_arguments_p (*args) |
712c948a JM |
2253 | /* For a non-static member function that doesn't have an |
2254 | explicit object argument, we need to specifically | |
1770aeed DS |
2255 | test the type dependency of the "this" pointer because it |
2256 | is not included in *ARGS even though it is considered to | |
2257 | be part of the list of arguments. Note that this is | |
2258 | related to CWG issues 515 and 1005. */ | |
712c948a JM |
2259 | || (TREE_CODE (fn) != COMPONENT_REF |
2260 | && non_static_member_function_p (fn) | |
1770aeed DS |
2261 | && current_class_ref |
2262 | && type_dependent_expression_p (current_class_ref))) | |
6d80c4b9 | 2263 | { |
c166b898 | 2264 | result = build_nt_call_vec (fn, *args); |
8400e75e | 2265 | SET_EXPR_LOCATION (result, EXPR_LOC_OR_LOC (fn, input_location)); |
5094a795 | 2266 | KOENIG_LOOKUP_P (result) = koenig_p; |
be461b8f JJ |
2267 | if (cfun) |
2268 | { | |
2269 | do | |
2270 | { | |
2271 | tree fndecl = OVL_CURRENT (fn); | |
2272 | if (TREE_CODE (fndecl) != FUNCTION_DECL | |
2273 | || !TREE_THIS_VOLATILE (fndecl)) | |
2274 | break; | |
2275 | fn = OVL_NEXT (fn); | |
2276 | } | |
2277 | while (fn); | |
2278 | if (!fn) | |
2279 | current_function_returns_abnormally = 1; | |
2280 | } | |
6d80c4b9 MM |
2281 | return result; |
2282 | } | |
c166b898 | 2283 | orig_args = make_tree_vector_copy (*args); |
d17811fd MM |
2284 | if (!BASELINK_P (fn) |
2285 | && TREE_CODE (fn) != PSEUDO_DTOR_EXPR | |
2286 | && TREE_TYPE (fn) != unknown_type_node) | |
2287 | fn = build_non_dependent_expr (fn); | |
c166b898 | 2288 | make_args_non_dependent (*args); |
d17811fd MM |
2289 | } |
2290 | ||
deb9642d JM |
2291 | if (TREE_CODE (fn) == COMPONENT_REF) |
2292 | { | |
2293 | tree member = TREE_OPERAND (fn, 1); | |
2294 | if (BASELINK_P (member)) | |
2295 | { | |
2296 | tree object = TREE_OPERAND (fn, 0); | |
2297 | return build_new_method_call (object, member, | |
2298 | args, NULL_TREE, | |
2299 | (disallow_virtual | |
2300 | ? LOOKUP_NORMAL | LOOKUP_NONVIRTUAL | |
2301 | : LOOKUP_NORMAL), | |
2302 | /*fn_p=*/NULL, | |
2303 | complain); | |
2304 | } | |
2305 | } | |
2306 | ||
53677b17 PC |
2307 | /* Per 13.3.1.1, '(&f)(...)' is the same as '(f)(...)'. */ |
2308 | if (TREE_CODE (fn) == ADDR_EXPR | |
2309 | && TREE_CODE (TREE_OPERAND (fn, 0)) == OVERLOAD) | |
2310 | fn = TREE_OPERAND (fn, 0); | |
2311 | ||
eff3a276 MM |
2312 | if (is_overloaded_fn (fn)) |
2313 | fn = baselink_for_fns (fn); | |
a723baf1 | 2314 | |
d17811fd | 2315 | result = NULL_TREE; |
4ba126e4 | 2316 | if (BASELINK_P (fn)) |
03d82991 | 2317 | { |
4ba126e4 MM |
2318 | tree object; |
2319 | ||
2320 | /* A call to a member function. From [over.call.func]: | |
2321 | ||
2322 | If the keyword this is in scope and refers to the class of | |
2323 | that member function, or a derived class thereof, then the | |
2324 | function call is transformed into a qualified function call | |
2325 | using (*this) as the postfix-expression to the left of the | |
2326 | . operator.... [Otherwise] a contrived object of type T | |
c8094d83 | 2327 | becomes the implied object argument. |
4ba126e4 | 2328 | |
38f1276b | 2329 | In this situation: |
4ba126e4 MM |
2330 | |
2331 | struct A { void f(); }; | |
2332 | struct B : public A {}; | |
2333 | struct C : public A { void g() { B::f(); }}; | |
2334 | ||
38f1276b JM |
2335 | "the class of that member function" refers to `A'. But 11.2 |
2336 | [class.access.base] says that we need to convert 'this' to B* as | |
2337 | part of the access, so we pass 'B' to maybe_dummy_object. */ | |
b4c4a9ec | 2338 | |
38f1276b JM |
2339 | object = maybe_dummy_object (BINFO_TYPE (BASELINK_ACCESS_BINFO (fn)), |
2340 | NULL); | |
b4c4a9ec | 2341 | |
d17811fd MM |
2342 | if (processing_template_decl) |
2343 | { | |
2344 | if (type_dependent_expression_p (object)) | |
c166b898 ILT |
2345 | { |
2346 | tree ret = build_nt_call_vec (orig_fn, orig_args); | |
2347 | release_tree_vector (orig_args); | |
2348 | return ret; | |
2349 | } | |
d17811fd MM |
2350 | object = build_non_dependent_expr (object); |
2351 | } | |
2352 | ||
2353 | result = build_new_method_call (object, fn, args, NULL_TREE, | |
c8094d83 | 2354 | (disallow_virtual |
c2aa8dc9 JM |
2355 | ? LOOKUP_NORMAL|LOOKUP_NONVIRTUAL |
2356 | : LOOKUP_NORMAL), | |
5ade1ed2 DG |
2357 | /*fn_p=*/NULL, |
2358 | complain); | |
4ba126e4 MM |
2359 | } |
2360 | else if (is_overloaded_fn (fn)) | |
16c35a1f RH |
2361 | { |
2362 | /* If the function is an overloaded builtin, resolve it. */ | |
2363 | if (TREE_CODE (fn) == FUNCTION_DECL | |
58646b77 PB |
2364 | && (DECL_BUILT_IN_CLASS (fn) == BUILT_IN_NORMAL |
2365 | || DECL_BUILT_IN_CLASS (fn) == BUILT_IN_MD)) | |
c2255bc4 | 2366 | result = resolve_overloaded_builtin (input_location, fn, *args); |
16c35a1f RH |
2367 | |
2368 | if (!result) | |
0d23cf7a JJ |
2369 | { |
2370 | if (warn_sizeof_pointer_memaccess | |
9771b263 | 2371 | && !vec_safe_is_empty (*args) |
0d23cf7a JJ |
2372 | && !processing_template_decl) |
2373 | { | |
3a785c97 JJ |
2374 | location_t sizeof_arg_loc[3]; |
2375 | tree sizeof_arg[3]; | |
2376 | unsigned int i; | |
2377 | for (i = 0; i < 3; i++) | |
2378 | { | |
2379 | tree t; | |
2380 | ||
2381 | sizeof_arg_loc[i] = UNKNOWN_LOCATION; | |
2382 | sizeof_arg[i] = NULL_TREE; | |
9771b263 | 2383 | if (i >= (*args)->length ()) |
3a785c97 | 2384 | continue; |
9771b263 | 2385 | t = (**args)[i]; |
3a785c97 JJ |
2386 | if (TREE_CODE (t) != SIZEOF_EXPR) |
2387 | continue; | |
2388 | if (SIZEOF_EXPR_TYPE_P (t)) | |
2389 | sizeof_arg[i] = TREE_TYPE (TREE_OPERAND (t, 0)); | |
2390 | else | |
2391 | sizeof_arg[i] = TREE_OPERAND (t, 0); | |
2392 | sizeof_arg_loc[i] = EXPR_LOCATION (t); | |
2393 | } | |
0d23cf7a | 2394 | sizeof_pointer_memaccess_warning |
3a785c97 | 2395 | (sizeof_arg_loc, fn, *args, |
0d23cf7a JJ |
2396 | sizeof_arg, same_type_ignoring_top_level_qualifiers_p); |
2397 | } | |
2398 | ||
2399 | /* A call to a namespace-scope function. */ | |
2400 | result = build_new_function_call (fn, args, koenig_p, complain); | |
2401 | } | |
16c35a1f | 2402 | } |
a723baf1 MM |
2403 | else if (TREE_CODE (fn) == PSEUDO_DTOR_EXPR) |
2404 | { | |
9771b263 | 2405 | if (!vec_safe_is_empty (*args)) |
a723baf1 MM |
2406 | error ("arguments to destructor are not allowed"); |
2407 | /* Mark the pseudo-destructor call as having side-effects so | |
2408 | that we do not issue warnings about its use. */ | |
2409 | result = build1 (NOP_EXPR, | |
2410 | void_type_node, | |
2411 | TREE_OPERAND (fn, 0)); | |
2412 | TREE_SIDE_EFFECTS (result) = 1; | |
a723baf1 | 2413 | } |
4ba126e4 | 2414 | else if (CLASS_TYPE_P (TREE_TYPE (fn))) |
d17811fd MM |
2415 | /* If the "function" is really an object of class type, it might |
2416 | have an overloaded `operator ()'. */ | |
c166b898 | 2417 | result = build_op_call (fn, args, complain); |
16c35a1f | 2418 | |
d17811fd MM |
2419 | if (!result) |
2420 | /* A call where the function is unknown. */ | |
c166b898 | 2421 | result = cp_build_function_call_vec (fn, args, complain); |
4ba126e4 | 2422 | |
bb4586d3 | 2423 | if (processing_template_decl && result != error_mark_node) |
6d80c4b9 | 2424 | { |
591cb3cf | 2425 | if (INDIRECT_REF_P (result)) |
bb4586d3 | 2426 | result = TREE_OPERAND (result, 0); |
c166b898 | 2427 | result = build_call_vec (TREE_TYPE (result), orig_fn, orig_args); |
6e04dcd5 | 2428 | SET_EXPR_LOCATION (result, input_location); |
5094a795 | 2429 | KOENIG_LOOKUP_P (result) = koenig_p; |
c166b898 | 2430 | release_tree_vector (orig_args); |
bb4586d3 | 2431 | result = convert_from_reference (result); |
6d80c4b9 | 2432 | } |
c166b898 | 2433 | |
3a2cb4d0 JM |
2434 | if (koenig_p) |
2435 | { | |
2436 | /* Free garbage OVERLOADs from arg-dependent lookup. */ | |
2437 | tree next = NULL_TREE; | |
2438 | for (fn = orig_fn; | |
2439 | fn && TREE_CODE (fn) == OVERLOAD && OVL_ARG_DEPENDENT (fn); | |
2440 | fn = next) | |
2441 | { | |
2442 | if (processing_template_decl) | |
2443 | /* In a template, we'll re-use them at instantiation time. */ | |
2444 | OVL_ARG_DEPENDENT (fn) = false; | |
2445 | else | |
2446 | { | |
2447 | next = OVL_CHAIN (fn); | |
2448 | ggc_free (fn); | |
2449 | } | |
2450 | } | |
2451 | } | |
2452 | ||
d17811fd | 2453 | return result; |
b4c4a9ec MM |
2454 | } |
2455 | ||
4a4f287d BO |
2456 | /* Instantiate a variable declaration from a TEMPLATE_ID_EXPR for use. */ |
2457 | ||
2458 | tree | |
2459 | finish_template_variable (tree var) | |
2460 | { | |
2461 | return instantiate_template (TREE_OPERAND (var, 0), TREE_OPERAND (var, 1), | |
2462 | tf_error); | |
2463 | } | |
2464 | ||
b4c4a9ec MM |
2465 | /* Finish a call to a postfix increment or decrement or EXPR. (Which |
2466 | is indicated by CODE, which should be POSTINCREMENT_EXPR or | |
2467 | POSTDECREMENT_EXPR.) */ | |
2468 | ||
c8094d83 | 2469 | tree |
3a978d72 | 2470 | finish_increment_expr (tree expr, enum tree_code code) |
b4c4a9ec | 2471 | { |
4fe977f2 | 2472 | return build_x_unary_op (input_location, code, expr, tf_warning_or_error); |
b4c4a9ec MM |
2473 | } |
2474 | ||
2475 | /* Finish a use of `this'. Returns an expression for `this'. */ | |
2476 | ||
c8094d83 | 2477 | tree |
3a978d72 | 2478 | finish_this_expr (void) |
b4c4a9ec | 2479 | { |
2bf492a1 | 2480 | tree result = NULL_TREE; |
b4c4a9ec | 2481 | |
c6be04ad JM |
2482 | if (current_class_ptr) |
2483 | { | |
2484 | tree type = TREE_TYPE (current_class_ref); | |
2485 | ||
2486 | /* In a lambda expression, 'this' refers to the captured 'this'. */ | |
2487 | if (LAMBDA_TYPE_P (type)) | |
0b360a07 | 2488 | result = lambda_expr_this_capture (CLASSTYPE_LAMBDA_EXPR (type), true); |
c6be04ad JM |
2489 | else |
2490 | result = current_class_ptr; | |
c6be04ad | 2491 | } |
b4c4a9ec | 2492 | |
2bf492a1 JM |
2493 | if (result) |
2494 | /* The keyword 'this' is a prvalue expression. */ | |
2495 | return rvalue (result); | |
374b2837 | 2496 | |
2bf492a1 JM |
2497 | tree fn = current_nonlambda_function (); |
2498 | if (fn && DECL_STATIC_FUNCTION_P (fn)) | |
2499 | error ("%<this%> is unavailable for static member functions"); | |
2500 | else if (fn) | |
2501 | error ("invalid use of %<this%> in non-member function"); | |
2502 | else | |
2503 | error ("invalid use of %<this%> at top level"); | |
2504 | return error_mark_node; | |
b4c4a9ec MM |
2505 | } |
2506 | ||
a723baf1 MM |
2507 | /* Finish a pseudo-destructor expression. If SCOPE is NULL, the |
2508 | expression was of the form `OBJECT.~DESTRUCTOR' where DESTRUCTOR is | |
2509 | the TYPE for the type given. If SCOPE is non-NULL, the expression | |
2510 | was of the form `OBJECT.SCOPE::~DESTRUCTOR'. */ | |
b4c4a9ec | 2511 | |
c8094d83 | 2512 | tree |
2dc6ed87 PC |
2513 | finish_pseudo_destructor_expr (tree object, tree scope, tree destructor, |
2514 | location_t loc) | |
b4c4a9ec | 2515 | { |
09b1ccd6 | 2516 | if (object == error_mark_node || destructor == error_mark_node) |
a723baf1 | 2517 | return error_mark_node; |
40242ccf | 2518 | |
50bc768d | 2519 | gcc_assert (TYPE_P (destructor)); |
b4c4a9ec | 2520 | |
a723baf1 MM |
2521 | if (!processing_template_decl) |
2522 | { | |
2523 | if (scope == error_mark_node) | |
2524 | { | |
2dc6ed87 | 2525 | error_at (loc, "invalid qualifying scope in pseudo-destructor name"); |
a723baf1 MM |
2526 | return error_mark_node; |
2527 | } | |
3df70c62 JM |
2528 | if (is_auto (destructor)) |
2529 | destructor = TREE_TYPE (object); | |
5cf10afb AP |
2530 | if (scope && TYPE_P (scope) && !check_dtor_name (scope, destructor)) |
2531 | { | |
2dc6ed87 PC |
2532 | error_at (loc, |
2533 | "qualified type %qT does not match destructor name ~%qT", | |
2534 | scope, destructor); | |
5cf10afb AP |
2535 | return error_mark_node; |
2536 | } | |
2537 | ||
c8094d83 | 2538 | |
26bcf8fc MM |
2539 | /* [expr.pseudo] says both: |
2540 | ||
0cbd7506 | 2541 | The type designated by the pseudo-destructor-name shall be |
26bcf8fc MM |
2542 | the same as the object type. |
2543 | ||
0cbd7506 | 2544 | and: |
26bcf8fc | 2545 | |
0cbd7506 | 2546 | The cv-unqualified versions of the object type and of the |
26bcf8fc MM |
2547 | type designated by the pseudo-destructor-name shall be the |
2548 | same type. | |
2549 | ||
0cbd7506 MS |
2550 | We implement the more generous second sentence, since that is |
2551 | what most other compilers do. */ | |
c8094d83 | 2552 | if (!same_type_ignoring_top_level_qualifiers_p (TREE_TYPE (object), |
26bcf8fc | 2553 | destructor)) |
a723baf1 | 2554 | { |
2dc6ed87 | 2555 | error_at (loc, "%qE is not of type %qT", object, destructor); |
a723baf1 MM |
2556 | return error_mark_node; |
2557 | } | |
2558 | } | |
b4c4a9ec | 2559 | |
2dc6ed87 PC |
2560 | return build3_loc (loc, PSEUDO_DTOR_EXPR, void_type_node, object, |
2561 | scope, destructor); | |
b4c4a9ec MM |
2562 | } |
2563 | ||
ce4a0391 MM |
2564 | /* Finish an expression of the form CODE EXPR. */ |
2565 | ||
2566 | tree | |
e59baf05 JM |
2567 | finish_unary_op_expr (location_t loc, enum tree_code code, tree expr, |
2568 | tsubst_flags_t complain) | |
ce4a0391 | 2569 | { |
e59baf05 JM |
2570 | tree result = build_x_unary_op (loc, code, expr, complain); |
2571 | if ((complain & tf_warning) | |
2572 | && TREE_OVERFLOW_P (result) && !TREE_OVERFLOW_P (expr)) | |
c2255bc4 | 2573 | overflow_warning (input_location, result); |
59c0753d | 2574 | |
ce4a0391 MM |
2575 | return result; |
2576 | } | |
2577 | ||
a723baf1 | 2578 | /* Finish a compound-literal expression. TYPE is the type to which |
09357846 | 2579 | the CONSTRUCTOR in COMPOUND_LITERAL is being cast. */ |
a723baf1 MM |
2580 | |
2581 | tree | |
834aa426 JM |
2582 | finish_compound_literal (tree type, tree compound_literal, |
2583 | tsubst_flags_t complain) | |
a723baf1 | 2584 | { |
326a4d4e JJ |
2585 | if (type == error_mark_node) |
2586 | return error_mark_node; | |
2587 | ||
76186d20 JM |
2588 | if (TREE_CODE (type) == REFERENCE_TYPE) |
2589 | { | |
2590 | compound_literal | |
2591 | = finish_compound_literal (TREE_TYPE (type), compound_literal, | |
2592 | complain); | |
2593 | return cp_build_c_cast (type, compound_literal, complain); | |
2594 | } | |
2595 | ||
2b643eda MM |
2596 | if (!TYPE_OBJ_P (type)) |
2597 | { | |
834aa426 JM |
2598 | if (complain & tf_error) |
2599 | error ("compound literal of non-object type %qT", type); | |
2b643eda MM |
2600 | return error_mark_node; |
2601 | } | |
2602 | ||
a723baf1 | 2603 | if (processing_template_decl) |
a723baf1 | 2604 | { |
e92fb501 MM |
2605 | TREE_TYPE (compound_literal) = type; |
2606 | /* Mark the expression as a compound literal. */ | |
2607 | TREE_HAS_CONSTRUCTOR (compound_literal) = 1; | |
2608 | return compound_literal; | |
a723baf1 MM |
2609 | } |
2610 | ||
df794884 | 2611 | type = complete_type (type); |
09357846 JM |
2612 | |
2613 | if (TYPE_NON_AGGREGATE_CLASS (type)) | |
2614 | { | |
2615 | /* Trying to deal with a CONSTRUCTOR instead of a TREE_LIST | |
2616 | everywhere that deals with function arguments would be a pain, so | |
2617 | just wrap it in a TREE_LIST. The parser set a flag so we know | |
2618 | that it came from T{} rather than T({}). */ | |
2619 | CONSTRUCTOR_IS_DIRECT_INIT (compound_literal) = 1; | |
2620 | compound_literal = build_tree_list (NULL_TREE, compound_literal); | |
834aa426 | 2621 | return build_functional_cast (type, compound_literal, complain); |
09357846 JM |
2622 | } |
2623 | ||
23bee8f4 JJ |
2624 | if (TREE_CODE (type) == ARRAY_TYPE |
2625 | && check_array_initializer (NULL_TREE, type, compound_literal)) | |
2626 | return error_mark_node; | |
754af126 | 2627 | compound_literal = reshape_init (type, compound_literal, complain); |
25339f10 | 2628 | if (SCALAR_TYPE_P (type) |
c428869b | 2629 | && !BRACE_ENCLOSED_INITIALIZER_P (compound_literal) |
6a6bdc3d PC |
2630 | && !check_narrowing (type, compound_literal, complain)) |
2631 | return error_mark_node; | |
80c6dcf5 JM |
2632 | if (TREE_CODE (type) == ARRAY_TYPE |
2633 | && TYPE_DOMAIN (type) == NULL_TREE) | |
2634 | { | |
2635 | cp_complete_array_type_or_error (&type, compound_literal, | |
2636 | false, complain); | |
2637 | if (type == error_mark_node) | |
2638 | return error_mark_node; | |
2639 | } | |
754af126 | 2640 | compound_literal = digest_init (type, compound_literal, complain); |
8c53f5e2 JM |
2641 | if (TREE_CODE (compound_literal) == CONSTRUCTOR) |
2642 | TREE_HAS_CONSTRUCTOR (compound_literal) = true; | |
a63940ba JM |
2643 | /* Put static/constant array temporaries in static variables, but always |
2644 | represent class temporaries with TARGET_EXPR so we elide copies. */ | |
2645 | if ((!at_function_scope_p () || CP_TYPE_CONST_P (type)) | |
2646 | && TREE_CODE (type) == ARRAY_TYPE | |
fa9ef321 | 2647 | && !TYPE_HAS_NONTRIVIAL_DESTRUCTOR (type) |
a63940ba JM |
2648 | && initializer_constant_valid_p (compound_literal, type)) |
2649 | { | |
2650 | tree decl = create_temporary_var (type); | |
2651 | DECL_INITIAL (decl) = compound_literal; | |
2652 | TREE_STATIC (decl) = 1; | |
2653 | if (literal_type_p (type) && CP_TYPE_CONST_NON_VOLATILE_P (type)) | |
2654 | { | |
2655 | /* 5.19 says that a constant expression can include an | |
2656 | lvalue-rvalue conversion applied to "a glvalue of literal type | |
2657 | that refers to a non-volatile temporary object initialized | |
2658 | with a constant expression". Rather than try to communicate | |
2659 | that this VAR_DECL is a temporary, just mark it constexpr. */ | |
2660 | DECL_DECLARED_CONSTEXPR_P (decl) = true; | |
2661 | DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (decl) = true; | |
2662 | TREE_CONSTANT (decl) = true; | |
2663 | } | |
2664 | cp_apply_type_quals_to_decl (cp_type_quals (type), decl); | |
2665 | decl = pushdecl_top_level (decl); | |
2666 | DECL_NAME (decl) = make_anon_name (); | |
2667 | SET_DECL_ASSEMBLER_NAME (decl, DECL_NAME (decl)); | |
eca7fc57 JM |
2668 | /* Make sure the destructor is callable. */ |
2669 | tree clean = cxx_maybe_build_cleanup (decl, complain); | |
2670 | if (clean == error_mark_node) | |
2671 | return error_mark_node; | |
a63940ba JM |
2672 | return decl; |
2673 | } | |
2674 | else | |
574cfaa4 | 2675 | return get_target_expr_sfinae (compound_literal, complain); |
a723baf1 MM |
2676 | } |
2677 | ||
5f261ba9 MM |
2678 | /* Return the declaration for the function-name variable indicated by |
2679 | ID. */ | |
2680 | ||
2681 | tree | |
2682 | finish_fname (tree id) | |
2683 | { | |
2684 | tree decl; | |
c8094d83 | 2685 | |
3ba09659 | 2686 | decl = fname_decl (input_location, C_RID_CODE (id), id); |
f2381074 KT |
2687 | if (processing_template_decl && current_function_decl |
2688 | && decl != error_mark_node) | |
10b1d5e7 | 2689 | decl = DECL_NAME (decl); |
5f261ba9 MM |
2690 | return decl; |
2691 | } | |
2692 | ||
8014a339 | 2693 | /* Finish a translation unit. */ |
ce4a0391 | 2694 | |
c8094d83 | 2695 | void |
3a978d72 | 2696 | finish_translation_unit (void) |
ce4a0391 MM |
2697 | { |
2698 | /* In case there were missing closebraces, | |
2699 | get us back to the global binding level. */ | |
273a708f | 2700 | pop_everything (); |
ce4a0391 MM |
2701 | while (current_namespace != global_namespace) |
2702 | pop_namespace (); | |
0ba8a114 | 2703 | |
c6002625 | 2704 | /* Do file scope __FUNCTION__ et al. */ |
0ba8a114 | 2705 | finish_fname_decls (); |
ce4a0391 MM |
2706 | } |
2707 | ||
b4c4a9ec MM |
2708 | /* Finish a template type parameter, specified as AGGR IDENTIFIER. |
2709 | Returns the parameter. */ | |
2710 | ||
c8094d83 | 2711 | tree |
3a978d72 | 2712 | finish_template_type_parm (tree aggr, tree identifier) |
b4c4a9ec | 2713 | { |
6eabb241 | 2714 | if (aggr != class_type_node) |
b4c4a9ec | 2715 | { |
cbe5f3b3 | 2716 | permerror (input_location, "template type parameters must use the keyword %<class%> or %<typename%>"); |
b4c4a9ec MM |
2717 | aggr = class_type_node; |
2718 | } | |
2719 | ||
2720 | return build_tree_list (aggr, identifier); | |
2721 | } | |
2722 | ||
2723 | /* Finish a template template parameter, specified as AGGR IDENTIFIER. | |
2724 | Returns the parameter. */ | |
2725 | ||
c8094d83 | 2726 | tree |
3a978d72 | 2727 | finish_template_template_parm (tree aggr, tree identifier) |
b4c4a9ec | 2728 | { |
c2255bc4 AH |
2729 | tree decl = build_decl (input_location, |
2730 | TYPE_DECL, identifier, NULL_TREE); | |
b4c4a9ec MM |
2731 | tree tmpl = build_lang_decl (TEMPLATE_DECL, identifier, NULL_TREE); |
2732 | DECL_TEMPLATE_PARMS (tmpl) = current_template_parms; | |
2733 | DECL_TEMPLATE_RESULT (tmpl) = decl; | |
c727aa5e | 2734 | DECL_ARTIFICIAL (decl) = 1; |
b4c4a9ec MM |
2735 | end_template_decl (); |
2736 | ||
50bc768d | 2737 | gcc_assert (DECL_TEMPLATE_PARMS (tmpl)); |
b37bf5bd | 2738 | |
85d85234 DG |
2739 | check_default_tmpl_args (decl, DECL_TEMPLATE_PARMS (tmpl), |
2740 | /*is_primary=*/true, /*is_partial=*/false, | |
2741 | /*is_friend=*/0); | |
2742 | ||
b4c4a9ec MM |
2743 | return finish_template_type_parm (aggr, tmpl); |
2744 | } | |
ce4a0391 | 2745 | |
8ba658ee MM |
2746 | /* ARGUMENT is the default-argument value for a template template |
2747 | parameter. If ARGUMENT is invalid, issue error messages and return | |
2748 | the ERROR_MARK_NODE. Otherwise, ARGUMENT itself is returned. */ | |
2749 | ||
2750 | tree | |
2751 | check_template_template_default_arg (tree argument) | |
2752 | { | |
2753 | if (TREE_CODE (argument) != TEMPLATE_DECL | |
2754 | && TREE_CODE (argument) != TEMPLATE_TEMPLATE_PARM | |
8ba658ee MM |
2755 | && TREE_CODE (argument) != UNBOUND_CLASS_TEMPLATE) |
2756 | { | |
a3a503a5 | 2757 | if (TREE_CODE (argument) == TYPE_DECL) |
e488a090 VR |
2758 | error ("invalid use of type %qT as a default value for a template " |
2759 | "template-parameter", TREE_TYPE (argument)); | |
a3a503a5 GB |
2760 | else |
2761 | error ("invalid default argument for a template template parameter"); | |
8ba658ee MM |
2762 | return error_mark_node; |
2763 | } | |
2764 | ||
2765 | return argument; | |
2766 | } | |
2767 | ||
ce4a0391 MM |
2768 | /* Begin a class definition, as indicated by T. */ |
2769 | ||
2770 | tree | |
e3c888eb | 2771 | begin_class_definition (tree t) |
ce4a0391 | 2772 | { |
7d2f0ecd | 2773 | if (error_operand_p (t) || error_operand_p (TYPE_MAIN_DECL (t))) |
7437519c ZW |
2774 | return error_mark_node; |
2775 | ||
522d6614 NS |
2776 | if (processing_template_parmlist) |
2777 | { | |
a82e1a7d | 2778 | error ("definition of %q#T inside template parameter list", t); |
522d6614 NS |
2779 | return error_mark_node; |
2780 | } | |
ebf0bf7f JJ |
2781 | |
2782 | /* According to the C++ ABI, decimal classes defined in ISO/IEC TR 24733 | |
2783 | are passed the same as decimal scalar types. */ | |
cd924144 JM |
2784 | if (TREE_CODE (t) == RECORD_TYPE |
2785 | && !processing_template_decl) | |
ebf0bf7f | 2786 | { |
cd924144 JM |
2787 | tree ns = TYPE_CONTEXT (t); |
2788 | if (ns && TREE_CODE (ns) == NAMESPACE_DECL | |
2789 | && DECL_CONTEXT (ns) == std_node | |
935c0a5d | 2790 | && DECL_NAME (ns) |
cd924144 JM |
2791 | && !strcmp (IDENTIFIER_POINTER (DECL_NAME (ns)), "decimal")) |
2792 | { | |
2793 | const char *n = TYPE_NAME_STRING (t); | |
2794 | if ((strcmp (n, "decimal32") == 0) | |
2795 | || (strcmp (n, "decimal64") == 0) | |
2796 | || (strcmp (n, "decimal128") == 0)) | |
2797 | TYPE_TRANSPARENT_AGGR (t) = 1; | |
2798 | } | |
ebf0bf7f JJ |
2799 | } |
2800 | ||
47ee8904 MM |
2801 | /* A non-implicit typename comes from code like: |
2802 | ||
2803 | template <typename T> struct A { | |
0cbd7506 | 2804 | template <typename U> struct A<T>::B ... |
47ee8904 MM |
2805 | |
2806 | This is erroneous. */ | |
2807 | else if (TREE_CODE (t) == TYPENAME_TYPE) | |
2808 | { | |
a82e1a7d | 2809 | error ("invalid definition of qualified type %qT", t); |
47ee8904 MM |
2810 | t = error_mark_node; |
2811 | } | |
2812 | ||
9e1e64ec | 2813 | if (t == error_mark_node || ! MAYBE_CLASS_TYPE_P (t)) |
ce4a0391 | 2814 | { |
9e1e64ec | 2815 | t = make_class_type (RECORD_TYPE); |
bd3d082e | 2816 | pushtag (make_anon_name (), t, /*tag_scope=*/ts_current); |
ce4a0391 | 2817 | } |
830fcda8 | 2818 | |
4c571114 | 2819 | if (TYPE_BEING_DEFINED (t)) |
ce4a0391 | 2820 | { |
9e1e64ec | 2821 | t = make_class_type (TREE_CODE (t)); |
bd3d082e | 2822 | pushtag (TYPE_IDENTIFIER (t), t, /*tag_scope=*/ts_current); |
ce4a0391 | 2823 | } |
ff350acd | 2824 | maybe_process_partial_specialization (t); |
29370796 | 2825 | pushclass (t); |
ce4a0391 | 2826 | TYPE_BEING_DEFINED (t) = 1; |
5294e4c3 | 2827 | class_binding_level->defining_class_p = 1; |
b9e75696 | 2828 | |
c0694c4b MM |
2829 | if (flag_pack_struct) |
2830 | { | |
2831 | tree v; | |
2832 | TYPE_PACKED (t) = 1; | |
2833 | /* Even though the type is being defined for the first time | |
2834 | here, there might have been a forward declaration, so there | |
2835 | might be cv-qualified variants of T. */ | |
2836 | for (v = TYPE_NEXT_VARIANT (t); v; v = TYPE_NEXT_VARIANT (v)) | |
2837 | TYPE_PACKED (v) = 1; | |
2838 | } | |
ce4a0391 MM |
2839 | /* Reset the interface data, at the earliest possible |
2840 | moment, as it might have been set via a class foo; | |
2841 | before. */ | |
1951a1b6 JM |
2842 | if (! TYPE_ANONYMOUS_P (t)) |
2843 | { | |
8400e75e DM |
2844 | struct c_fileinfo *finfo = \ |
2845 | get_fileinfo (LOCATION_FILE (input_location)); | |
5d709b00 | 2846 | CLASSTYPE_INTERFACE_ONLY (t) = finfo->interface_only; |
1951a1b6 | 2847 | SET_CLASSTYPE_INTERFACE_UNKNOWN_X |
5d709b00 | 2848 | (t, finfo->interface_unknown); |
1951a1b6 | 2849 | } |
ce4a0391 | 2850 | reset_specialization(); |
c8094d83 | 2851 | |
b7975aed MM |
2852 | /* Make a declaration for this class in its own scope. */ |
2853 | build_self_reference (); | |
2854 | ||
830fcda8 | 2855 | return t; |
ce4a0391 MM |
2856 | } |
2857 | ||
61a127b3 MM |
2858 | /* Finish the member declaration given by DECL. */ |
2859 | ||
2860 | void | |
3a978d72 | 2861 | finish_member_declaration (tree decl) |
61a127b3 MM |
2862 | { |
2863 | if (decl == error_mark_node || decl == NULL_TREE) | |
2864 | return; | |
2865 | ||
2866 | if (decl == void_type_node) | |
2867 | /* The COMPONENT was a friend, not a member, and so there's | |
2868 | nothing for us to do. */ | |
2869 | return; | |
2870 | ||
2871 | /* We should see only one DECL at a time. */ | |
910ad8de | 2872 | gcc_assert (DECL_CHAIN (decl) == NULL_TREE); |
61a127b3 MM |
2873 | |
2874 | /* Set up access control for DECL. */ | |
c8094d83 | 2875 | TREE_PRIVATE (decl) |
61a127b3 | 2876 | = (current_access_specifier == access_private_node); |
c8094d83 | 2877 | TREE_PROTECTED (decl) |
61a127b3 MM |
2878 | = (current_access_specifier == access_protected_node); |
2879 | if (TREE_CODE (decl) == TEMPLATE_DECL) | |
2880 | { | |
17aec3eb RK |
2881 | TREE_PRIVATE (DECL_TEMPLATE_RESULT (decl)) = TREE_PRIVATE (decl); |
2882 | TREE_PROTECTED (DECL_TEMPLATE_RESULT (decl)) = TREE_PROTECTED (decl); | |
61a127b3 MM |
2883 | } |
2884 | ||
8d0d1915 JM |
2885 | /* Mark the DECL as a member of the current class, unless it's |
2886 | a member of an enumeration. */ | |
2887 | if (TREE_CODE (decl) != CONST_DECL) | |
2888 | DECL_CONTEXT (decl) = current_class_type; | |
61a127b3 | 2889 | |
b1d7b1c0 | 2890 | /* Check for bare parameter packs in the member variable declaration. */ |
1ad8aeeb | 2891 | if (TREE_CODE (decl) == FIELD_DECL) |
4439d02f | 2892 | { |
7b3e2d46 | 2893 | if (check_for_bare_parameter_packs (TREE_TYPE (decl))) |
4439d02f | 2894 | TREE_TYPE (decl) = error_mark_node; |
7b3e2d46 | 2895 | if (check_for_bare_parameter_packs (DECL_ATTRIBUTES (decl))) |
4439d02f DG |
2896 | DECL_ATTRIBUTES (decl) = NULL_TREE; |
2897 | } | |
b1d7b1c0 | 2898 | |
421844e7 MM |
2899 | /* [dcl.link] |
2900 | ||
2901 | A C language linkage is ignored for the names of class members | |
2902 | and the member function type of class member functions. */ | |
2903 | if (DECL_LANG_SPECIFIC (decl) && DECL_LANGUAGE (decl) == lang_c) | |
5d2ed28c | 2904 | SET_DECL_LANGUAGE (decl, lang_cplusplus); |
421844e7 | 2905 | |
61a127b3 MM |
2906 | /* Put functions on the TYPE_METHODS list and everything else on the |
2907 | TYPE_FIELDS list. Note that these are built up in reverse order. | |
2908 | We reverse them (to obtain declaration order) in finish_struct. */ | |
9ededfc5 | 2909 | if (DECL_DECLARES_FUNCTION_P (decl)) |
61a127b3 MM |
2910 | { |
2911 | /* We also need to add this function to the | |
2912 | CLASSTYPE_METHOD_VEC. */ | |
b77fe7b4 NS |
2913 | if (add_method (current_class_type, decl, NULL_TREE)) |
2914 | { | |
910ad8de | 2915 | DECL_CHAIN (decl) = TYPE_METHODS (current_class_type); |
b77fe7b4 | 2916 | TYPE_METHODS (current_class_type) = decl; |
f139561c | 2917 | |
b77fe7b4 NS |
2918 | maybe_add_class_template_decl_list (current_class_type, decl, |
2919 | /*friend_p=*/0); | |
2920 | } | |
61a127b3 | 2921 | } |
fad882c6 JM |
2922 | /* Enter the DECL into the scope of the class, if the class |
2923 | isn't a closure (whose fields are supposed to be unnamed). */ | |
2924 | else if (CLASSTYPE_LAMBDA_EXPR (current_class_type) | |
2925 | || pushdecl_class_level (decl)) | |
61a127b3 | 2926 | { |
557831a9 FC |
2927 | if (TREE_CODE (decl) == USING_DECL) |
2928 | { | |
557831a9 FC |
2929 | /* For now, ignore class-scope USING_DECLS, so that |
2930 | debugging backends do not see them. */ | |
2931 | DECL_IGNORED_P (decl) = 1; | |
2932 | } | |
2933 | ||
61a127b3 MM |
2934 | /* All TYPE_DECLs go at the end of TYPE_FIELDS. Ordinary fields |
2935 | go at the beginning. The reason is that lookup_field_1 | |
2936 | searches the list in order, and we want a field name to | |
2937 | override a type name so that the "struct stat hack" will | |
2938 | work. In particular: | |
2939 | ||
2940 | struct S { enum E { }; int E } s; | |
2941 | s.E = 3; | |
2942 | ||
0e339752 | 2943 | is valid. In addition, the FIELD_DECLs must be maintained in |
61a127b3 MM |
2944 | declaration order so that class layout works as expected. |
2945 | However, we don't need that order until class layout, so we | |
2946 | save a little time by putting FIELD_DECLs on in reverse order | |
2947 | here, and then reversing them in finish_struct_1. (We could | |
2948 | also keep a pointer to the correct insertion points in the | |
2949 | list.) */ | |
2950 | ||
2951 | if (TREE_CODE (decl) == TYPE_DECL) | |
c8094d83 | 2952 | TYPE_FIELDS (current_class_type) |
61a127b3 MM |
2953 | = chainon (TYPE_FIELDS (current_class_type), decl); |
2954 | else | |
2955 | { | |
910ad8de | 2956 | DECL_CHAIN (decl) = TYPE_FIELDS (current_class_type); |
61a127b3 MM |
2957 | TYPE_FIELDS (current_class_type) = decl; |
2958 | } | |
8f032717 | 2959 | |
c8094d83 | 2960 | maybe_add_class_template_decl_list (current_class_type, decl, |
f139561c | 2961 | /*friend_p=*/0); |
61a127b3 | 2962 | } |
5e2f4cd2 MM |
2963 | |
2964 | if (pch_file) | |
2965 | note_decl_for_pch (decl); | |
2966 | } | |
2967 | ||
2968 | /* DECL has been declared while we are building a PCH file. Perform | |
2969 | actions that we might normally undertake lazily, but which can be | |
2970 | performed now so that they do not have to be performed in | |
2971 | translation units which include the PCH file. */ | |
2972 | ||
2973 | void | |
2974 | note_decl_for_pch (tree decl) | |
2975 | { | |
2976 | gcc_assert (pch_file); | |
2977 | ||
5e2f4cd2 MM |
2978 | /* There's a good chance that we'll have to mangle names at some |
2979 | point, even if only for emission in debugging information. */ | |
cb6da767 | 2980 | if (VAR_OR_FUNCTION_DECL_P (decl) |
ec0897de | 2981 | && !processing_template_decl) |
5e2f4cd2 | 2982 | mangle_decl (decl); |
61a127b3 MM |
2983 | } |
2984 | ||
306ef644 | 2985 | /* Finish processing a complete template declaration. The PARMS are |
36a117a5 MM |
2986 | the template parameters. */ |
2987 | ||
2988 | void | |
3a978d72 | 2989 | finish_template_decl (tree parms) |
36a117a5 MM |
2990 | { |
2991 | if (parms) | |
2992 | end_template_decl (); | |
2993 | else | |
2994 | end_specialization (); | |
2995 | } | |
2996 | ||
509fc277 | 2997 | /* Finish processing a template-id (which names a type) of the form |
36a117a5 | 2998 | NAME < ARGS >. Return the TYPE_DECL for the type named by the |
838dfd8a | 2999 | template-id. If ENTERING_SCOPE is nonzero we are about to enter |
36a117a5 MM |
3000 | the scope of template-id indicated. */ |
3001 | ||
3002 | tree | |
3a978d72 | 3003 | finish_template_type (tree name, tree args, int entering_scope) |
36a117a5 | 3004 | { |
28704289 | 3005 | tree type; |
36a117a5 | 3006 | |
28704289 | 3007 | type = lookup_template_class (name, args, |
42eaed49 | 3008 | NULL_TREE, NULL_TREE, entering_scope, |
23fca1f5 | 3009 | tf_warning_or_error | tf_user); |
28704289 DS |
3010 | if (type == error_mark_node) |
3011 | return type; | |
3012 | else if (CLASS_TYPE_P (type) && !alias_type_or_template_p (type)) | |
3013 | return TYPE_STUB_DECL (type); | |
3014 | else | |
3015 | return TYPE_NAME (type); | |
36a117a5 | 3016 | } |
648f19f6 | 3017 | |
ea6021e8 MM |
3018 | /* Finish processing a BASE_CLASS with the indicated ACCESS_SPECIFIER. |
3019 | Return a TREE_LIST containing the ACCESS_SPECIFIER and the | |
3020 | BASE_CLASS, or NULL_TREE if an error occurred. The | |
aba649ba | 3021 | ACCESS_SPECIFIER is one of |
809e3e7f NS |
3022 | access_{default,public,protected_private}_node. For a virtual base |
3023 | we set TREE_TYPE. */ | |
ea6021e8 | 3024 | |
c8094d83 | 3025 | tree |
dbbf88d1 | 3026 | finish_base_specifier (tree base, tree access, bool virtual_p) |
ea6021e8 | 3027 | { |
ea6021e8 MM |
3028 | tree result; |
3029 | ||
dbbf88d1 | 3030 | if (base == error_mark_node) |
acb044ee GDR |
3031 | { |
3032 | error ("invalid base-class specification"); | |
3033 | result = NULL_TREE; | |
3034 | } | |
9e1e64ec PC |
3035 | else if (! MAYBE_CLASS_TYPE_P (base)) |
3036 | { | |
3037 | error ("%qT is not a class type", base); | |
3038 | result = NULL_TREE; | |
3039 | } | |
ea6021e8 | 3040 | else |
bb92901d | 3041 | { |
dbbf88d1 | 3042 | if (cp_type_quals (base) != 0) |
0cbd7506 | 3043 | { |
546a4197 PC |
3044 | /* DR 484: Can a base-specifier name a cv-qualified |
3045 | class type? */ | |
0cbd7506 MS |
3046 | base = TYPE_MAIN_VARIANT (base); |
3047 | } | |
dbbf88d1 | 3048 | result = build_tree_list (access, base); |
809e3e7f NS |
3049 | if (virtual_p) |
3050 | TREE_TYPE (result) = integer_type_node; | |
bb92901d | 3051 | } |
ea6021e8 MM |
3052 | |
3053 | return result; | |
3054 | } | |
61a127b3 | 3055 | |
eff3a276 MM |
3056 | /* If FNS is a member function, a set of member functions, or a |
3057 | template-id referring to one or more member functions, return a | |
3058 | BASELINK for FNS, incorporating the current access context. | |
3059 | Otherwise, return FNS unchanged. */ | |
3060 | ||
3061 | tree | |
3062 | baselink_for_fns (tree fns) | |
3063 | { | |
aef3a6b2 | 3064 | tree scope; |
eff3a276 MM |
3065 | tree cl; |
3066 | ||
3067 | if (BASELINK_P (fns) | |
eff3a276 MM |
3068 | || error_operand_p (fns)) |
3069 | return fns; | |
aef3a6b2 JM |
3070 | |
3071 | scope = ovl_scope (fns); | |
3072 | if (!CLASS_TYPE_P (scope)) | |
eff3a276 MM |
3073 | return fns; |
3074 | ||
aef3a6b2 | 3075 | cl = currently_open_derived_class (scope); |
eff3a276 | 3076 | if (!cl) |
aef3a6b2 | 3077 | cl = scope; |
eff3a276 | 3078 | cl = TYPE_BINFO (cl); |
5a40306b | 3079 | return build_baselink (cl, cl, fns, /*optype=*/NULL_TREE); |
eff3a276 MM |
3080 | } |
3081 | ||
9fd30fec | 3082 | /* Returns true iff DECL is a variable from a function outside |
d5f4eddd JM |
3083 | the current one. */ |
3084 | ||
3085 | static bool | |
9fd30fec | 3086 | outer_var_p (tree decl) |
d5f4eddd | 3087 | { |
5a6ccc94 | 3088 | return ((VAR_P (decl) || TREE_CODE (decl) == PARM_DECL) |
d5f4eddd | 3089 | && DECL_FUNCTION_SCOPE_P (decl) |
cdf47df0 JM |
3090 | && (DECL_CONTEXT (decl) != current_function_decl |
3091 | || parsing_nsdmi ())); | |
d5f4eddd JM |
3092 | } |
3093 | ||
9fd30fec JM |
3094 | /* As above, but also checks that DECL is automatic. */ |
3095 | ||
548cb3d7 | 3096 | bool |
9fd30fec JM |
3097 | outer_automatic_var_p (tree decl) |
3098 | { | |
3099 | return (outer_var_p (decl) | |
3100 | && !TREE_STATIC (decl)); | |
3101 | } | |
3102 | ||
548cb3d7 JM |
3103 | /* DECL satisfies outer_automatic_var_p. Possibly complain about it or |
3104 | rewrite it for lambda capture. */ | |
3105 | ||
3106 | tree | |
3107 | process_outer_var_ref (tree decl, tsubst_flags_t complain) | |
3108 | { | |
3109 | if (cp_unevaluated_operand) | |
3110 | /* It's not a use (3.2) if we're in an unevaluated context. */ | |
3111 | return decl; | |
3112 | ||
3113 | tree context = DECL_CONTEXT (decl); | |
3114 | tree containing_function = current_function_decl; | |
3115 | tree lambda_stack = NULL_TREE; | |
3116 | tree lambda_expr = NULL_TREE; | |
3117 | tree initializer = convert_from_reference (decl); | |
3118 | ||
3119 | /* Mark it as used now even if the use is ill-formed. */ | |
3120 | mark_used (decl); | |
3121 | ||
3122 | /* Core issue 696: "[At the July 2009 meeting] the CWG expressed | |
3123 | support for an approach in which a reference to a local | |
3124 | [constant] automatic variable in a nested class or lambda body | |
3125 | would enter the expression as an rvalue, which would reduce | |
3126 | the complexity of the problem" | |
3127 | ||
3128 | FIXME update for final resolution of core issue 696. */ | |
3129 | if (decl_maybe_constant_var_p (decl)) | |
3130 | { | |
3131 | if (processing_template_decl) | |
3132 | /* In a template, the constant value may not be in a usable | |
3133 | form, so wait until instantiation time. */ | |
3134 | return decl; | |
3135 | else if (decl_constant_var_p (decl)) | |
69eb4fde | 3136 | return scalar_constant_value (decl); |
548cb3d7 JM |
3137 | } |
3138 | ||
3139 | if (parsing_nsdmi ()) | |
3140 | containing_function = NULL_TREE; | |
3141 | else | |
3142 | /* If we are in a lambda function, we can move out until we hit | |
3143 | 1. the context, | |
3144 | 2. a non-lambda function, or | |
3145 | 3. a non-default capturing lambda function. */ | |
3146 | while (context != containing_function | |
3147 | && LAMBDA_FUNCTION_P (containing_function)) | |
3148 | { | |
47867b4f JM |
3149 | tree closure = DECL_CONTEXT (containing_function); |
3150 | lambda_expr = CLASSTYPE_LAMBDA_EXPR (closure); | |
3151 | ||
3152 | if (TYPE_CLASS_SCOPE_P (closure)) | |
3153 | /* A lambda in an NSDMI (c++/64496). */ | |
3154 | break; | |
548cb3d7 JM |
3155 | |
3156 | if (LAMBDA_EXPR_DEFAULT_CAPTURE_MODE (lambda_expr) | |
3157 | == CPLD_NONE) | |
3158 | break; | |
3159 | ||
3160 | lambda_stack = tree_cons (NULL_TREE, | |
3161 | lambda_expr, | |
3162 | lambda_stack); | |
3163 | ||
3164 | containing_function | |
3165 | = decl_function_context (containing_function); | |
3166 | } | |
3167 | ||
3168 | if (lambda_expr && TREE_CODE (decl) == VAR_DECL | |
3169 | && DECL_ANON_UNION_VAR_P (decl)) | |
3170 | { | |
3171 | if (complain & tf_error) | |
3172 | error ("cannot capture member %qD of anonymous union", decl); | |
3173 | return error_mark_node; | |
3174 | } | |
3175 | if (context == containing_function) | |
3176 | { | |
3177 | decl = add_default_capture (lambda_stack, | |
3178 | /*id=*/DECL_NAME (decl), | |
3179 | initializer); | |
3180 | } | |
3181 | else if (lambda_expr) | |
3182 | { | |
3183 | if (complain & tf_error) | |
47867b4f JM |
3184 | { |
3185 | error ("%qD is not captured", decl); | |
3186 | tree closure = LAMBDA_EXPR_CLOSURE (lambda_expr); | |
3187 | if (LAMBDA_EXPR_DEFAULT_CAPTURE_MODE (lambda_expr) | |
3188 | == CPLD_NONE) | |
3189 | inform (location_of (closure), | |
3190 | "the lambda has no capture-default"); | |
3191 | else if (TYPE_CLASS_SCOPE_P (closure)) | |
3192 | inform (0, "lambda in local class %q+T cannot " | |
3193 | "capture variables from the enclosing context", | |
3194 | TYPE_CONTEXT (closure)); | |
3195 | inform (input_location, "%q+#D declared here", decl); | |
3196 | } | |
548cb3d7 JM |
3197 | return error_mark_node; |
3198 | } | |
3199 | else | |
3200 | { | |
3201 | if (complain & tf_error) | |
3202 | error (VAR_P (decl) | |
3203 | ? G_("use of local variable with automatic storage from containing function") | |
3204 | : G_("use of parameter from containing function")); | |
3205 | inform (input_location, "%q+#D declared here", decl); | |
3206 | return error_mark_node; | |
3207 | } | |
3208 | return decl; | |
3209 | } | |
3210 | ||
b3445994 MM |
3211 | /* ID_EXPRESSION is a representation of parsed, but unprocessed, |
3212 | id-expression. (See cp_parser_id_expression for details.) SCOPE, | |
3213 | if non-NULL, is the type or namespace used to explicitly qualify | |
3214 | ID_EXPRESSION. DECL is the entity to which that name has been | |
c8094d83 | 3215 | resolved. |
b3445994 MM |
3216 | |
3217 | *CONSTANT_EXPRESSION_P is true if we are presently parsing a | |
3218 | constant-expression. In that case, *NON_CONSTANT_EXPRESSION_P will | |
3219 | be set to true if this expression isn't permitted in a | |
3220 | constant-expression, but it is otherwise not set by this function. | |
3221 | *ALLOW_NON_CONSTANT_EXPRESSION_P is true if we are parsing a | |
3222 | constant-expression, but a non-constant expression is also | |
3223 | permissible. | |
3224 | ||
02ed62dd MM |
3225 | DONE is true if this expression is a complete postfix-expression; |
3226 | it is false if this expression is followed by '->', '[', '(', etc. | |
3227 | ADDRESS_P is true iff this expression is the operand of '&'. | |
3228 | TEMPLATE_P is true iff the qualified-id was of the form | |
3229 | "A::template B". TEMPLATE_ARG_P is true iff this qualified name | |
3230 | appears as a template argument. | |
3231 | ||
b3445994 MM |
3232 | If an error occurs, and it is the kind of error that might cause |
3233 | the parser to abort a tentative parse, *ERROR_MSG is filled in. It | |
3234 | is the caller's responsibility to issue the message. *ERROR_MSG | |
3235 | will be a string with static storage duration, so the caller need | |
3236 | not "free" it. | |
3237 | ||
3238 | Return an expression for the entity, after issuing appropriate | |
3239 | diagnostics. This function is also responsible for transforming a | |
3240 | reference to a non-static member into a COMPONENT_REF that makes | |
c8094d83 | 3241 | the use of "this" explicit. |
b3445994 MM |
3242 | |
3243 | Upon return, *IDK will be filled in appropriately. */ | |
b3445994 | 3244 | tree |
c8094d83 | 3245 | finish_id_expression (tree id_expression, |
b3445994 MM |
3246 | tree decl, |
3247 | tree scope, | |
3248 | cp_id_kind *idk, | |
67c03833 JM |
3249 | bool integral_constant_expression_p, |
3250 | bool allow_non_integral_constant_expression_p, | |
3251 | bool *non_integral_constant_expression_p, | |
02ed62dd MM |
3252 | bool template_p, |
3253 | bool done, | |
3254 | bool address_p, | |
3255 | bool template_arg_p, | |
2b7a3abf DS |
3256 | const char **error_msg, |
3257 | location_t location) | |
b3445994 | 3258 | { |
a9727434 FC |
3259 | decl = strip_using_decl (decl); |
3260 | ||
b3445994 MM |
3261 | /* Initialize the output parameters. */ |
3262 | *idk = CP_ID_KIND_NONE; | |
3263 | *error_msg = NULL; | |
3264 | ||
3265 | if (id_expression == error_mark_node) | |
3266 | return error_mark_node; | |
3267 | /* If we have a template-id, then no further lookup is | |
3268 | required. If the template-id was for a template-class, we | |
3269 | will sometimes have a TYPE_DECL at this point. */ | |
3270 | else if (TREE_CODE (decl) == TEMPLATE_ID_EXPR | |
ee935db4 | 3271 | || TREE_CODE (decl) == TYPE_DECL) |
b3445994 MM |
3272 | ; |
3273 | /* Look up the name. */ | |
c8094d83 | 3274 | else |
b3445994 MM |
3275 | { |
3276 | if (decl == error_mark_node) | |
3277 | { | |
3278 | /* Name lookup failed. */ | |
c8094d83 MS |
3279 | if (scope |
3280 | && (!TYPE_P (scope) | |
4546865e | 3281 | || (!dependent_type_p (scope) |
9dc6f476 | 3282 | && !(identifier_p (id_expression) |
4546865e MM |
3283 | && IDENTIFIER_TYPENAME_P (id_expression) |
3284 | && dependent_type_p (TREE_TYPE (id_expression)))))) | |
b3445994 | 3285 | { |
4546865e MM |
3286 | /* If the qualifying type is non-dependent (and the name |
3287 | does not name a conversion operator to a dependent | |
3288 | type), issue an error. */ | |
2b7a3abf | 3289 | qualified_name_lookup_error (scope, id_expression, decl, location); |
b3445994 MM |
3290 | return error_mark_node; |
3291 | } | |
3292 | else if (!scope) | |
3293 | { | |
3294 | /* It may be resolved via Koenig lookup. */ | |
3295 | *idk = CP_ID_KIND_UNQUALIFIED; | |
3296 | return id_expression; | |
3297 | } | |
4546865e MM |
3298 | else |
3299 | decl = id_expression; | |
b3445994 MM |
3300 | } |
3301 | /* If DECL is a variable that would be out of scope under | |
3302 | ANSI/ISO rules, but in scope in the ARM, name lookup | |
3303 | will succeed. Issue a diagnostic here. */ | |
3304 | else | |
3305 | decl = check_for_out_of_scope_variable (decl); | |
3306 | ||
3307 | /* Remember that the name was used in the definition of | |
3308 | the current class so that we can check later to see if | |
3309 | the meaning would have been different after the class | |
3310 | was entirely defined. */ | |
9dc6f476 | 3311 | if (!scope && decl != error_mark_node && identifier_p (id_expression)) |
b3445994 | 3312 | maybe_note_name_used_in_class (id_expression, decl); |
8ca4bf25 | 3313 | |
d5f4eddd JM |
3314 | /* Disallow uses of local variables from containing functions, except |
3315 | within lambda-expressions. */ | |
548cb3d7 | 3316 | if (outer_automatic_var_p (decl)) |
cfb71cad JM |
3317 | { |
3318 | decl = process_outer_var_ref (decl, tf_warning_or_error); | |
3319 | if (decl == error_mark_node) | |
3320 | return error_mark_node; | |
3321 | } | |
da9bc840 JM |
3322 | |
3323 | /* Also disallow uses of function parameters outside the function | |
3324 | body, except inside an unevaluated context (i.e. decltype). */ | |
3325 | if (TREE_CODE (decl) == PARM_DECL | |
3326 | && DECL_CONTEXT (decl) == NULL_TREE | |
3327 | && !cp_unevaluated_operand) | |
3328 | { | |
5d264d62 | 3329 | *error_msg = "use of parameter outside function body"; |
da9bc840 JM |
3330 | return error_mark_node; |
3331 | } | |
b3445994 MM |
3332 | } |
3333 | ||
3334 | /* If we didn't find anything, or what we found was a type, | |
3335 | then this wasn't really an id-expression. */ | |
3336 | if (TREE_CODE (decl) == TEMPLATE_DECL | |
3337 | && !DECL_FUNCTION_TEMPLATE_P (decl)) | |
3338 | { | |
3339 | *error_msg = "missing template arguments"; | |
3340 | return error_mark_node; | |
3341 | } | |
3342 | else if (TREE_CODE (decl) == TYPE_DECL | |
3343 | || TREE_CODE (decl) == NAMESPACE_DECL) | |
3344 | { | |
3345 | *error_msg = "expected primary-expression"; | |
3346 | return error_mark_node; | |
3347 | } | |
3348 | ||
3349 | /* If the name resolved to a template parameter, there is no | |
931a9c05 GB |
3350 | need to look it up again later. */ |
3351 | if ((TREE_CODE (decl) == CONST_DECL && DECL_TEMPLATE_PARM_P (decl)) | |
3352 | || TREE_CODE (decl) == TEMPLATE_PARM_INDEX) | |
b3445994 | 3353 | { |
db24eb1f | 3354 | tree r; |
c8094d83 | 3355 | |
b3445994 | 3356 | *idk = CP_ID_KIND_NONE; |
931a9c05 GB |
3357 | if (TREE_CODE (decl) == TEMPLATE_PARM_INDEX) |
3358 | decl = TEMPLATE_PARM_DECL (decl); | |
db24eb1f | 3359 | r = convert_from_reference (DECL_INITIAL (decl)); |
c8094d83 MS |
3360 | |
3361 | if (integral_constant_expression_p | |
68deab91 | 3362 | && !dependent_type_p (TREE_TYPE (decl)) |
db24eb1f | 3363 | && !(INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (r)))) |
931a9c05 | 3364 | { |
67c03833 | 3365 | if (!allow_non_integral_constant_expression_p) |
a82e1a7d | 3366 | error ("template parameter %qD of type %qT is not allowed in " |
931a9c05 GB |
3367 | "an integral constant expression because it is not of " |
3368 | "integral or enumeration type", decl, TREE_TYPE (decl)); | |
67c03833 | 3369 | *non_integral_constant_expression_p = true; |
931a9c05 | 3370 | } |
db24eb1f | 3371 | return r; |
931a9c05 | 3372 | } |
b3445994 MM |
3373 | else |
3374 | { | |
3375 | bool dependent_p; | |
3376 | ||
3377 | /* If the declaration was explicitly qualified indicate | |
3378 | that. The semantics of `A::f(3)' are different than | |
3379 | `f(3)' if `f' is virtual. */ | |
c8094d83 | 3380 | *idk = (scope |
b3445994 MM |
3381 | ? CP_ID_KIND_QUALIFIED |
3382 | : (TREE_CODE (decl) == TEMPLATE_ID_EXPR | |
3383 | ? CP_ID_KIND_TEMPLATE_ID | |
3384 | : CP_ID_KIND_UNQUALIFIED)); | |
3385 | ||
3386 | ||
3387 | /* [temp.dep.expr] | |
3388 | ||
3389 | An id-expression is type-dependent if it contains an | |
3390 | identifier that was declared with a dependent type. | |
3391 | ||
b3445994 MM |
3392 | The standard is not very specific about an id-expression that |
3393 | names a set of overloaded functions. What if some of them | |
3394 | have dependent types and some of them do not? Presumably, | |
3395 | such a name should be treated as a dependent name. */ | |
3396 | /* Assume the name is not dependent. */ | |
3397 | dependent_p = false; | |
3398 | if (!processing_template_decl) | |
3399 | /* No names are dependent outside a template. */ | |
3400 | ; | |
8d0d1915 JM |
3401 | else if (TREE_CODE (decl) == CONST_DECL) |
3402 | /* We don't want to treat enumerators as dependent. */ | |
3403 | ; | |
b3445994 MM |
3404 | /* A template-id where the name of the template was not resolved |
3405 | is definitely dependent. */ | |
3406 | else if (TREE_CODE (decl) == TEMPLATE_ID_EXPR | |
9dc6f476 | 3407 | && (identifier_p (TREE_OPERAND (decl, 0)))) |
b3445994 MM |
3408 | dependent_p = true; |
3409 | /* For anything except an overloaded function, just check its | |
3410 | type. */ | |
3411 | else if (!is_overloaded_fn (decl)) | |
c8094d83 | 3412 | dependent_p |
b3445994 MM |
3413 | = dependent_type_p (TREE_TYPE (decl)); |
3414 | /* For a set of overloaded functions, check each of the | |
3415 | functions. */ | |
3416 | else | |
3417 | { | |
3418 | tree fns = decl; | |
3419 | ||
3420 | if (BASELINK_P (fns)) | |
3421 | fns = BASELINK_FUNCTIONS (fns); | |
3422 | ||
3423 | /* For a template-id, check to see if the template | |
3424 | arguments are dependent. */ | |
3425 | if (TREE_CODE (fns) == TEMPLATE_ID_EXPR) | |
3426 | { | |
3427 | tree args = TREE_OPERAND (fns, 1); | |
3428 | dependent_p = any_dependent_template_arguments_p (args); | |
3429 | /* The functions are those referred to by the | |
3430 | template-id. */ | |
3431 | fns = TREE_OPERAND (fns, 0); | |
3432 | } | |
3433 | ||
3434 | /* If there are no dependent template arguments, go through | |
cd0be382 | 3435 | the overloaded functions. */ |
b3445994 MM |
3436 | while (fns && !dependent_p) |
3437 | { | |
3438 | tree fn = OVL_CURRENT (fns); | |
3439 | ||
3440 | /* Member functions of dependent classes are | |
3441 | dependent. */ | |
3442 | if (TREE_CODE (fn) == FUNCTION_DECL | |
3443 | && type_dependent_expression_p (fn)) | |
3444 | dependent_p = true; | |
3445 | else if (TREE_CODE (fn) == TEMPLATE_DECL | |
3446 | && dependent_template_p (fn)) | |
3447 | dependent_p = true; | |
3448 | ||
3449 | fns = OVL_NEXT (fns); | |
3450 | } | |
3451 | } | |
3452 | ||
3453 | /* If the name was dependent on a template parameter, we will | |
3454 | resolve the name at instantiation time. */ | |
3455 | if (dependent_p) | |
3456 | { | |
3457 | /* Create a SCOPE_REF for qualified names, if the scope is | |
3458 | dependent. */ | |
3459 | if (scope) | |
3460 | { | |
02ed62dd MM |
3461 | if (TYPE_P (scope)) |
3462 | { | |
3463 | if (address_p && done) | |
3464 | decl = finish_qualified_id_expr (scope, decl, | |
3465 | done, address_p, | |
3466 | template_p, | |
a378996b PC |
3467 | template_arg_p, |
3468 | tf_warning_or_error); | |
7e361ae6 JM |
3469 | else |
3470 | { | |
3471 | tree type = NULL_TREE; | |
3472 | if (DECL_P (decl) && !dependent_scope_p (scope)) | |
3473 | type = TREE_TYPE (decl); | |
3474 | decl = build_qualified_name (type, | |
3475 | scope, | |
3476 | id_expression, | |
3477 | template_p); | |
3478 | } | |
02ed62dd MM |
3479 | } |
3480 | if (TREE_TYPE (decl)) | |
3481 | decl = convert_from_reference (decl); | |
3482 | return decl; | |
b3445994 MM |
3483 | } |
3484 | /* A TEMPLATE_ID already contains all the information we | |
3485 | need. */ | |
3486 | if (TREE_CODE (id_expression) == TEMPLATE_ID_EXPR) | |
3487 | return id_expression; | |
10b1d5e7 | 3488 | *idk = CP_ID_KIND_UNQUALIFIED_DEPENDENT; |
5a98fa7b MM |
3489 | /* If we found a variable, then name lookup during the |
3490 | instantiation will always resolve to the same VAR_DECL | |
3491 | (or an instantiation thereof). */ | |
5a6ccc94 | 3492 | if (VAR_P (decl) |
3c398f34 | 3493 | || TREE_CODE (decl) == PARM_DECL) |
80390766 JM |
3494 | { |
3495 | mark_used (decl); | |
3496 | return convert_from_reference (decl); | |
3497 | } | |
bad1f462 KL |
3498 | /* The same is true for FIELD_DECL, but we also need to |
3499 | make sure that the syntax is correct. */ | |
3500 | else if (TREE_CODE (decl) == FIELD_DECL) | |
a26ddf11 KL |
3501 | { |
3502 | /* Since SCOPE is NULL here, this is an unqualified name. | |
3503 | Access checking has been performed during name lookup | |
3504 | already. Turn off checking to avoid duplicate errors. */ | |
3505 | push_deferring_access_checks (dk_no_check); | |
3506 | decl = finish_non_static_data_member | |
2defb926 | 3507 | (decl, NULL_TREE, |
a26ddf11 KL |
3508 | /*qualifying_scope=*/NULL_TREE); |
3509 | pop_deferring_access_checks (); | |
3510 | return decl; | |
3511 | } | |
10b1d5e7 | 3512 | return id_expression; |
b3445994 MM |
3513 | } |
3514 | ||
415d4636 | 3515 | if (TREE_CODE (decl) == NAMESPACE_DECL) |
9e95d15f | 3516 | { |
a82e1a7d | 3517 | error ("use of namespace %qD as expression", decl); |
9e95d15f NS |
3518 | return error_mark_node; |
3519 | } | |
3520 | else if (DECL_CLASS_TEMPLATE_P (decl)) | |
3521 | { | |
a82e1a7d | 3522 | error ("use of class template %qT as expression", decl); |
9e95d15f NS |
3523 | return error_mark_node; |
3524 | } | |
3525 | else if (TREE_CODE (decl) == TREE_LIST) | |
3526 | { | |
3527 | /* Ambiguous reference to base members. */ | |
a82e1a7d | 3528 | error ("request for member %qD is ambiguous in " |
9e95d15f NS |
3529 | "multiple inheritance lattice", id_expression); |
3530 | print_candidates (decl); | |
3531 | return error_mark_node; | |
3532 | } | |
415d4636 MM |
3533 | |
3534 | /* Mark variable-like entities as used. Functions are similarly | |
3535 | marked either below or after overload resolution. */ | |
5a6ccc94 | 3536 | if ((VAR_P (decl) |
f27a59cf PC |
3537 | || TREE_CODE (decl) == PARM_DECL |
3538 | || TREE_CODE (decl) == CONST_DECL | |
3539 | || TREE_CODE (decl) == RESULT_DECL) | |
3540 | && !mark_used (decl)) | |
3541 | return error_mark_node; | |
415d4636 | 3542 | |
aef4a215 | 3543 | /* Only certain kinds of names are allowed in constant |
8d0d1915 | 3544 | expression. Template parameters have already |
aef4a215 | 3545 | been handled above. */ |
7f7d4b12 DS |
3546 | if (! error_operand_p (decl) |
3547 | && integral_constant_expression_p | |
aef4a215 | 3548 | && ! decl_constant_var_p (decl) |
8d0d1915 | 3549 | && TREE_CODE (decl) != CONST_DECL |
aef4a215 JM |
3550 | && ! builtin_valid_in_constant_expr_p (decl)) |
3551 | { | |
3552 | if (!allow_non_integral_constant_expression_p) | |
3553 | { | |
3554 | error ("%qD cannot appear in a constant-expression", decl); | |
3555 | return error_mark_node; | |
3556 | } | |
3557 | *non_integral_constant_expression_p = true; | |
3558 | } | |
3559 | ||
7c424acd | 3560 | tree wrap; |
5a6ccc94 | 3561 | if (VAR_P (decl) |
7c424acd | 3562 | && !cp_unevaluated_operand |
71d64cd4 | 3563 | && !processing_template_decl |
56363ffd | 3564 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)) |
7c424acd JM |
3565 | && DECL_THREAD_LOCAL_P (decl) |
3566 | && (wrap = get_tls_wrapper_fn (decl))) | |
3567 | { | |
3568 | /* Replace an evaluated use of the thread_local variable with | |
3569 | a call to its wrapper. */ | |
3570 | decl = build_cxx_call (wrap, 0, NULL, tf_warning_or_error); | |
3571 | } | |
4a4f287d BO |
3572 | else if (TREE_CODE (decl) == TEMPLATE_ID_EXPR |
3573 | && variable_template_p (TREE_OPERAND (decl, 0))) | |
3574 | { | |
3575 | decl = finish_template_variable (decl); | |
5e0231c2 | 3576 | mark_used (decl); |
4a4f287d | 3577 | } |
7c424acd | 3578 | else if (scope) |
415d4636 | 3579 | { |
c8094d83 | 3580 | decl = (adjust_result_of_qualified_name_lookup |
90677b8d | 3581 | (decl, scope, current_nonlambda_class_type())); |
e20bcc5e JH |
3582 | |
3583 | if (TREE_CODE (decl) == FUNCTION_DECL) | |
3584 | mark_used (decl); | |
3585 | ||
e467c9d2 | 3586 | if (TYPE_P (scope)) |
02ed62dd MM |
3587 | decl = finish_qualified_id_expr (scope, |
3588 | decl, | |
3589 | done, | |
3590 | address_p, | |
3591 | template_p, | |
a378996b PC |
3592 | template_arg_p, |
3593 | tf_warning_or_error); | |
db24eb1f | 3594 | else |
e467c9d2 | 3595 | decl = convert_from_reference (decl); |
415d4636 | 3596 | } |
9e95d15f | 3597 | else if (TREE_CODE (decl) == FIELD_DECL) |
a26ddf11 KL |
3598 | { |
3599 | /* Since SCOPE is NULL here, this is an unqualified name. | |
3600 | Access checking has been performed during name lookup | |
3601 | already. Turn off checking to avoid duplicate errors. */ | |
3602 | push_deferring_access_checks (dk_no_check); | |
2defb926 | 3603 | decl = finish_non_static_data_member (decl, NULL_TREE, |
a26ddf11 KL |
3604 | /*qualifying_scope=*/NULL_TREE); |
3605 | pop_deferring_access_checks (); | |
3606 | } | |
9e95d15f NS |
3607 | else if (is_overloaded_fn (decl)) |
3608 | { | |
eff3a276 | 3609 | tree first_fn; |
b3445994 | 3610 | |
294e855f | 3611 | first_fn = get_first_fn (decl); |
9e95d15f NS |
3612 | if (TREE_CODE (first_fn) == TEMPLATE_DECL) |
3613 | first_fn = DECL_TEMPLATE_RESULT (first_fn); | |
415d4636 | 3614 | |
9965f21f PC |
3615 | if (!really_overloaded_fn (decl) |
3616 | && !mark_used (first_fn)) | |
3617 | return error_mark_node; | |
415d4636 | 3618 | |
02ed62dd MM |
3619 | if (!template_arg_p |
3620 | && TREE_CODE (first_fn) == FUNCTION_DECL | |
821eaf2a MM |
3621 | && DECL_FUNCTION_MEMBER_P (first_fn) |
3622 | && !shared_member_p (decl)) | |
9e95d15f NS |
3623 | { |
3624 | /* A set of member functions. */ | |
3625 | decl = maybe_dummy_object (DECL_CONTEXT (first_fn), 0); | |
02ed62dd | 3626 | return finish_class_member_access_expr (decl, id_expression, |
5ade1ed2 DG |
3627 | /*template_p=*/false, |
3628 | tf_warning_or_error); | |
9e95d15f | 3629 | } |
eff3a276 MM |
3630 | |
3631 | decl = baselink_for_fns (decl); | |
9e95d15f NS |
3632 | } |
3633 | else | |
3634 | { | |
9e95d15f | 3635 | if (DECL_P (decl) && DECL_NONLOCAL (decl) |
24f58e74 | 3636 | && DECL_CLASS_SCOPE_P (decl)) |
9e95d15f | 3637 | { |
24f58e74 PC |
3638 | tree context = context_for_name_lookup (decl); |
3639 | if (context != current_class_type) | |
3640 | { | |
3641 | tree path = currently_open_derived_class (context); | |
3642 | perform_or_defer_access_check (TYPE_BINFO (path), | |
0e69fdf0 PC |
3643 | decl, decl, |
3644 | tf_warning_or_error); | |
24f58e74 | 3645 | } |
9e95d15f | 3646 | } |
c8094d83 | 3647 | |
db24eb1f | 3648 | decl = convert_from_reference (decl); |
9e95d15f | 3649 | } |
b3445994 MM |
3650 | } |
3651 | ||
98cf9ac9 PC |
3652 | /* Handle references (c++/56130). */ |
3653 | tree t = REFERENCE_REF_P (decl) ? TREE_OPERAND (decl, 0) : decl; | |
3654 | if (TREE_DEPRECATED (t)) | |
3655 | warn_deprecated_use (t, NULL_TREE); | |
b3445994 MM |
3656 | |
3657 | return decl; | |
3658 | } | |
3659 | ||
0213a355 JM |
3660 | /* Implement the __typeof keyword: Return the type of EXPR, suitable for |
3661 | use as a type-specifier. */ | |
3662 | ||
b894fc05 | 3663 | tree |
3a978d72 | 3664 | finish_typeof (tree expr) |
b894fc05 | 3665 | { |
65a5559b MM |
3666 | tree type; |
3667 | ||
dffbbe80 | 3668 | if (type_dependent_expression_p (expr)) |
b894fc05 | 3669 | { |
9e1e64ec | 3670 | type = cxx_make_type (TYPEOF_TYPE); |
eb34af89 | 3671 | TYPEOF_TYPE_EXPR (type) = expr; |
3ad6a8e1 | 3672 | SET_TYPE_STRUCTURAL_EQUALITY (type); |
b894fc05 | 3673 | |
65a5559b | 3674 | return type; |
b894fc05 JM |
3675 | } |
3676 | ||
03a904b5 JJ |
3677 | expr = mark_type_use (expr); |
3678 | ||
3c38f0ff | 3679 | type = unlowered_expr_type (expr); |
65a5559b MM |
3680 | |
3681 | if (!type || type == unknown_type_node) | |
3682 | { | |
a82e1a7d | 3683 | error ("type of %qE is unknown", expr); |
65a5559b MM |
3684 | return error_mark_node; |
3685 | } | |
3686 | ||
3687 | return type; | |
b894fc05 | 3688 | } |
558475f0 | 3689 | |
a0d260fc PC |
3690 | /* Implement the __underlying_type keyword: Return the underlying |
3691 | type of TYPE, suitable for use as a type-specifier. */ | |
3692 | ||
3693 | tree | |
3694 | finish_underlying_type (tree type) | |
3695 | { | |
3696 | tree underlying_type; | |
3697 | ||
3698 | if (processing_template_decl) | |
3699 | { | |
3700 | underlying_type = cxx_make_type (UNDERLYING_TYPE); | |
3701 | UNDERLYING_TYPE_TYPE (underlying_type) = type; | |
3702 | SET_TYPE_STRUCTURAL_EQUALITY (underlying_type); | |
3703 | ||
3704 | return underlying_type; | |
3705 | } | |
3706 | ||
3707 | complete_type (type); | |
3708 | ||
3709 | if (TREE_CODE (type) != ENUMERAL_TYPE) | |
3710 | { | |
ca2507dc | 3711 | error ("%qT is not an enumeration type", type); |
a0d260fc PC |
3712 | return error_mark_node; |
3713 | } | |
3714 | ||
3715 | underlying_type = ENUM_UNDERLYING_TYPE (type); | |
3716 | ||
3717 | /* Fixup necessary in this case because ENUM_UNDERLYING_TYPE | |
3718 | includes TYPE_MIN_VALUE and TYPE_MAX_VALUE information. | |
3719 | See finish_enum_value_list for details. */ | |
3720 | if (!ENUM_FIXED_UNDERLYING_TYPE_P (type)) | |
3721 | underlying_type | |
3722 | = c_common_type_for_mode (TYPE_MODE (underlying_type), | |
3723 | TYPE_UNSIGNED (underlying_type)); | |
3724 | ||
3725 | return underlying_type; | |
3726 | } | |
3727 | ||
4daba884 BK |
3728 | /* Implement the __direct_bases keyword: Return the direct base classes |
3729 | of type */ | |
3730 | ||
3731 | tree | |
3732 | calculate_direct_bases (tree type) | |
3733 | { | |
9771b263 | 3734 | vec<tree, va_gc> *vector = make_tree_vector(); |
4daba884 | 3735 | tree bases_vec = NULL_TREE; |
9771b263 | 3736 | vec<tree, va_gc> *base_binfos; |
4daba884 BK |
3737 | tree binfo; |
3738 | unsigned i; | |
3739 | ||
3740 | complete_type (type); | |
3741 | ||
3742 | if (!NON_UNION_CLASS_TYPE_P (type)) | |
3743 | return make_tree_vec (0); | |
3744 | ||
3745 | base_binfos = BINFO_BASE_BINFOS (TYPE_BINFO (type)); | |
3746 | ||
3747 | /* Virtual bases are initialized first */ | |
9771b263 | 3748 | for (i = 0; base_binfos->iterate (i, &binfo); i++) |
4daba884 BK |
3749 | { |
3750 | if (BINFO_VIRTUAL_P (binfo)) | |
3751 | { | |
9771b263 | 3752 | vec_safe_push (vector, binfo); |
4daba884 BK |
3753 | } |
3754 | } | |
3755 | ||
3756 | /* Now non-virtuals */ | |
9771b263 | 3757 | for (i = 0; base_binfos->iterate (i, &binfo); i++) |
4daba884 BK |
3758 | { |
3759 | if (!BINFO_VIRTUAL_P (binfo)) | |
3760 | { | |
9771b263 | 3761 | vec_safe_push (vector, binfo); |
4daba884 BK |
3762 | } |
3763 | } | |
3764 | ||
3765 | ||
9771b263 | 3766 | bases_vec = make_tree_vec (vector->length ()); |
4daba884 | 3767 | |
9771b263 | 3768 | for (i = 0; i < vector->length (); ++i) |
4daba884 | 3769 | { |
9771b263 | 3770 | TREE_VEC_ELT (bases_vec, i) = BINFO_TYPE ((*vector)[i]); |
4daba884 BK |
3771 | } |
3772 | return bases_vec; | |
3773 | } | |
3774 | ||
3775 | /* Implement the __bases keyword: Return the base classes | |
3776 | of type */ | |
3777 | ||
3778 | /* Find morally non-virtual base classes by walking binfo hierarchy */ | |
3779 | /* Virtual base classes are handled separately in finish_bases */ | |
3780 | ||
3781 | static tree | |
12308bc6 | 3782 | dfs_calculate_bases_pre (tree binfo, void * /*data_*/) |
4daba884 BK |
3783 | { |
3784 | /* Don't walk bases of virtual bases */ | |
3785 | return BINFO_VIRTUAL_P (binfo) ? dfs_skip_bases : NULL_TREE; | |
3786 | } | |
3787 | ||
3788 | static tree | |
3789 | dfs_calculate_bases_post (tree binfo, void *data_) | |
3790 | { | |
9771b263 | 3791 | vec<tree, va_gc> **data = ((vec<tree, va_gc> **) data_); |
4daba884 BK |
3792 | if (!BINFO_VIRTUAL_P (binfo)) |
3793 | { | |
9771b263 | 3794 | vec_safe_push (*data, BINFO_TYPE (binfo)); |
4daba884 BK |
3795 | } |
3796 | return NULL_TREE; | |
3797 | } | |
3798 | ||
3799 | /* Calculates the morally non-virtual base classes of a class */ | |
9771b263 | 3800 | static vec<tree, va_gc> * |
4daba884 BK |
3801 | calculate_bases_helper (tree type) |
3802 | { | |
9771b263 | 3803 | vec<tree, va_gc> *vector = make_tree_vector(); |
4daba884 BK |
3804 | |
3805 | /* Now add non-virtual base classes in order of construction */ | |
3806 | dfs_walk_all (TYPE_BINFO (type), | |
3807 | dfs_calculate_bases_pre, dfs_calculate_bases_post, &vector); | |
3808 | return vector; | |
3809 | } | |
3810 | ||
3811 | tree | |
3812 | calculate_bases (tree type) | |
3813 | { | |
9771b263 | 3814 | vec<tree, va_gc> *vector = make_tree_vector(); |
4daba884 BK |
3815 | tree bases_vec = NULL_TREE; |
3816 | unsigned i; | |
9771b263 DN |
3817 | vec<tree, va_gc> *vbases; |
3818 | vec<tree, va_gc> *nonvbases; | |
4daba884 BK |
3819 | tree binfo; |
3820 | ||
3821 | complete_type (type); | |
3822 | ||
3823 | if (!NON_UNION_CLASS_TYPE_P (type)) | |
3824 | return make_tree_vec (0); | |
3825 | ||
3826 | /* First go through virtual base classes */ | |
3827 | for (vbases = CLASSTYPE_VBASECLASSES (type), i = 0; | |
9771b263 | 3828 | vec_safe_iterate (vbases, i, &binfo); i++) |
4daba884 | 3829 | { |
9771b263 DN |
3830 | vec<tree, va_gc> *vbase_bases; |
3831 | vbase_bases = calculate_bases_helper (BINFO_TYPE (binfo)); | |
3832 | vec_safe_splice (vector, vbase_bases); | |
4daba884 BK |
3833 | release_tree_vector (vbase_bases); |
3834 | } | |
3835 | ||
3836 | /* Now for the non-virtual bases */ | |
3837 | nonvbases = calculate_bases_helper (type); | |
9771b263 | 3838 | vec_safe_splice (vector, nonvbases); |
4daba884 BK |
3839 | release_tree_vector (nonvbases); |
3840 | ||
3841 | /* Last element is entire class, so don't copy */ | |
9771b263 | 3842 | bases_vec = make_tree_vec (vector->length () - 1); |
4daba884 | 3843 | |
9771b263 | 3844 | for (i = 0; i < vector->length () - 1; ++i) |
4daba884 | 3845 | { |
9771b263 | 3846 | TREE_VEC_ELT (bases_vec, i) = (*vector)[i]; |
4daba884 BK |
3847 | } |
3848 | release_tree_vector (vector); | |
3849 | return bases_vec; | |
3850 | } | |
3851 | ||
3852 | tree | |
3853 | finish_bases (tree type, bool direct) | |
3854 | { | |
3855 | tree bases = NULL_TREE; | |
3856 | ||
3857 | if (!processing_template_decl) | |
3858 | { | |
3859 | /* Parameter packs can only be used in templates */ | |
3860 | error ("Parameter pack __bases only valid in template declaration"); | |
3861 | return error_mark_node; | |
3862 | } | |
3863 | ||
3864 | bases = cxx_make_type (BASES); | |
3865 | BASES_TYPE (bases) = type; | |
3866 | BASES_DIRECT (bases) = direct; | |
3867 | SET_TYPE_STRUCTURAL_EQUALITY (bases); | |
3868 | ||
3869 | return bases; | |
3870 | } | |
3871 | ||
c291f8b1 VR |
3872 | /* Perform C++-specific checks for __builtin_offsetof before calling |
3873 | fold_offsetof. */ | |
3874 | ||
3875 | tree | |
8591575f | 3876 | finish_offsetof (tree expr, location_t loc) |
c291f8b1 | 3877 | { |
b433d944 JM |
3878 | /* If we're processing a template, we can't finish the semantics yet. |
3879 | Otherwise we can fold the entire expression now. */ | |
3880 | if (processing_template_decl) | |
3881 | { | |
3882 | expr = build1 (OFFSETOF_EXPR, size_type_node, expr); | |
3883 | SET_EXPR_LOCATION (expr, loc); | |
3884 | return expr; | |
3885 | } | |
3886 | ||
4c65a534 VR |
3887 | if (TREE_CODE (expr) == PSEUDO_DTOR_EXPR) |
3888 | { | |
3889 | error ("cannot apply %<offsetof%> to destructor %<~%T%>", | |
3890 | TREE_OPERAND (expr, 2)); | |
3891 | return error_mark_node; | |
3892 | } | |
c291f8b1 VR |
3893 | if (TREE_CODE (TREE_TYPE (expr)) == FUNCTION_TYPE |
3894 | || TREE_CODE (TREE_TYPE (expr)) == METHOD_TYPE | |
fbfc8363 | 3895 | || TREE_TYPE (expr) == unknown_type_node) |
c291f8b1 | 3896 | { |
98cf9ac9 | 3897 | if (INDIRECT_REF_P (expr)) |
929f647a PC |
3898 | error ("second operand of %<offsetof%> is neither a single " |
3899 | "identifier nor a sequence of member accesses and " | |
3900 | "array references"); | |
3901 | else | |
3902 | { | |
3903 | if (TREE_CODE (expr) == COMPONENT_REF | |
3904 | || TREE_CODE (expr) == COMPOUND_EXPR) | |
3905 | expr = TREE_OPERAND (expr, 1); | |
3906 | error ("cannot apply %<offsetof%> to member function %qD", expr); | |
3907 | } | |
c291f8b1 VR |
3908 | return error_mark_node; |
3909 | } | |
31e292c7 | 3910 | if (REFERENCE_REF_P (expr)) |
60c4d135 | 3911 | expr = TREE_OPERAND (expr, 0); |
a174e38c JM |
3912 | if (TREE_CODE (expr) == COMPONENT_REF) |
3913 | { | |
3914 | tree object = TREE_OPERAND (expr, 0); | |
3915 | if (!complete_type_or_else (TREE_TYPE (object), object)) | |
3916 | return error_mark_node; | |
8591575f JM |
3917 | if (warn_invalid_offsetof |
3918 | && CLASS_TYPE_P (TREE_TYPE (object)) | |
3919 | && CLASSTYPE_NON_STD_LAYOUT (TREE_TYPE (object)) | |
3920 | && cp_unevaluated_operand == 0) | |
3921 | pedwarn (loc, OPT_Winvalid_offsetof, | |
3922 | "offsetof within non-standard-layout type %qT is undefined", | |
3923 | TREE_TYPE (object)); | |
a174e38c | 3924 | } |
cf9e9959 | 3925 | return fold_offsetof (expr); |
c291f8b1 VR |
3926 | } |
3927 | ||
9eeb200f JM |
3928 | /* Replace the AGGR_INIT_EXPR at *TP with an equivalent CALL_EXPR. This |
3929 | function is broken out from the above for the benefit of the tree-ssa | |
3930 | project. */ | |
3931 | ||
3932 | void | |
3933 | simplify_aggr_init_expr (tree *tp) | |
3934 | { | |
3935 | tree aggr_init_expr = *tp; | |
3936 | ||
3eb24f73 | 3937 | /* Form an appropriate CALL_EXPR. */ |
5039610b SL |
3938 | tree fn = AGGR_INIT_EXPR_FN (aggr_init_expr); |
3939 | tree slot = AGGR_INIT_EXPR_SLOT (aggr_init_expr); | |
2692eb7d | 3940 | tree type = TREE_TYPE (slot); |
9eeb200f JM |
3941 | |
3942 | tree call_expr; | |
3943 | enum style_t { ctor, arg, pcc } style; | |
4977bab6 | 3944 | |
3eb24f73 | 3945 | if (AGGR_INIT_VIA_CTOR_P (aggr_init_expr)) |
4977bab6 ZW |
3946 | style = ctor; |
3947 | #ifdef PCC_STATIC_STRUCT_RETURN | |
3948 | else if (1) | |
3949 | style = pcc; | |
3950 | #endif | |
4977bab6 | 3951 | else |
315fb5db NS |
3952 | { |
3953 | gcc_assert (TREE_ADDRESSABLE (type)); | |
3954 | style = arg; | |
3955 | } | |
4977bab6 | 3956 | |
db3927fb AH |
3957 | call_expr = build_call_array_loc (input_location, |
3958 | TREE_TYPE (TREE_TYPE (TREE_TYPE (fn))), | |
3959 | fn, | |
3960 | aggr_init_expr_nargs (aggr_init_expr), | |
3961 | AGGR_INIT_EXPR_ARGP (aggr_init_expr)); | |
d8a0d13e | 3962 | TREE_NOTHROW (call_expr) = TREE_NOTHROW (aggr_init_expr); |
fe6ebcf1 | 3963 | CALL_EXPR_LIST_INIT_P (call_expr) = CALL_EXPR_LIST_INIT_P (aggr_init_expr); |
5039610b | 3964 | |
fa47911c | 3965 | if (style == ctor) |
3eb24f73 | 3966 | { |
fa47911c JM |
3967 | /* Replace the first argument to the ctor with the address of the |
3968 | slot. */ | |
dffd7eb6 | 3969 | cxx_mark_addressable (slot); |
5039610b SL |
3970 | CALL_EXPR_ARG (call_expr, 0) = |
3971 | build1 (ADDR_EXPR, build_pointer_type (type), slot); | |
3eb24f73 | 3972 | } |
5039610b | 3973 | else if (style == arg) |
fa47911c JM |
3974 | { |
3975 | /* Just mark it addressable here, and leave the rest to | |
3976 | expand_call{,_inline}. */ | |
3977 | cxx_mark_addressable (slot); | |
3978 | CALL_EXPR_RETURN_SLOT_OPT (call_expr) = true; | |
71d1add3 | 3979 | call_expr = build2 (INIT_EXPR, TREE_TYPE (call_expr), slot, call_expr); |
fa47911c | 3980 | } |
4977bab6 | 3981 | else if (style == pcc) |
3eb24f73 | 3982 | { |
4977bab6 ZW |
3983 | /* If we're using the non-reentrant PCC calling convention, then we |
3984 | need to copy the returned value out of the static buffer into the | |
3985 | SLOT. */ | |
78757caa | 3986 | push_deferring_access_checks (dk_no_check); |
71d1add3 JM |
3987 | call_expr = build_aggr_init (slot, call_expr, |
3988 | DIRECT_BIND | LOOKUP_ONLYCONVERTING, | |
3989 | tf_warning_or_error); | |
78757caa | 3990 | pop_deferring_access_checks (); |
71d1add3 | 3991 | call_expr = build2 (COMPOUND_EXPR, TREE_TYPE (slot), call_expr, slot); |
4561285b JM |
3992 | } |
3993 | ||
450a927a JM |
3994 | if (AGGR_INIT_ZERO_FIRST (aggr_init_expr)) |
3995 | { | |
3996 | tree init = build_zero_init (type, NULL_TREE, | |
3997 | /*static_storage_p=*/false); | |
3998 | init = build2 (INIT_EXPR, void_type_node, slot, init); | |
71d1add3 JM |
3999 | call_expr = build2 (COMPOUND_EXPR, TREE_TYPE (call_expr), |
4000 | init, call_expr); | |
450a927a JM |
4001 | } |
4002 | ||
71d1add3 | 4003 | *tp = call_expr; |
3eb24f73 MM |
4004 | } |
4005 | ||
31f8e4f3 MM |
4006 | /* Emit all thunks to FN that should be emitted when FN is emitted. */ |
4007 | ||
e89d6010 | 4008 | void |
3a978d72 | 4009 | emit_associated_thunks (tree fn) |
31f8e4f3 MM |
4010 | { |
4011 | /* When we use vcall offsets, we emit thunks with the virtual | |
4012 | functions to which they thunk. The whole point of vcall offsets | |
4013 | is so that you can know statically the entire set of thunks that | |
4014 | will ever be needed for a given virtual function, thereby | |
4015 | enabling you to output all the thunks with the function itself. */ | |
4537ec0c DN |
4016 | if (DECL_VIRTUAL_P (fn) |
4017 | /* Do not emit thunks for extern template instantiations. */ | |
4018 | && ! DECL_REALLY_EXTERN (fn)) | |
31f8e4f3 | 4019 | { |
bb5e8a7f | 4020 | tree thunk; |
c8094d83 | 4021 | |
910ad8de | 4022 | for (thunk = DECL_THUNKS (fn); thunk; thunk = DECL_CHAIN (thunk)) |
4977bab6 | 4023 | { |
e00853fd | 4024 | if (!THUNK_ALIAS (thunk)) |
4977bab6 | 4025 | { |
bb885938 NS |
4026 | use_thunk (thunk, /*emit_p=*/1); |
4027 | if (DECL_RESULT_THUNK_P (thunk)) | |
4028 | { | |
4029 | tree probe; | |
c8094d83 | 4030 | |
bb885938 | 4031 | for (probe = DECL_THUNKS (thunk); |
910ad8de | 4032 | probe; probe = DECL_CHAIN (probe)) |
bb885938 NS |
4033 | use_thunk (probe, /*emit_p=*/1); |
4034 | } | |
4977bab6 | 4035 | } |
bb885938 | 4036 | else |
50bc768d | 4037 | gcc_assert (!DECL_THUNKS (thunk)); |
4977bab6 | 4038 | } |
31f8e4f3 MM |
4039 | } |
4040 | } | |
4041 | ||
558475f0 MM |
4042 | /* Generate RTL for FN. */ |
4043 | ||
b2583345 JJ |
4044 | bool |
4045 | expand_or_defer_fn_1 (tree fn) | |
8cd2462c JH |
4046 | { |
4047 | /* When the parser calls us after finishing the body of a template | |
c353b8e3 MM |
4048 | function, we don't really want to expand the body. */ |
4049 | if (processing_template_decl) | |
8cd2462c JH |
4050 | { |
4051 | /* Normally, collection only occurs in rest_of_compilation. So, | |
4052 | if we don't collect here, we never collect junk generated | |
4053 | during the processing of templates until we hit a | |
27250734 MM |
4054 | non-template function. It's not safe to do this inside a |
4055 | nested class, though, as the parser may have local state that | |
4056 | is not a GC root. */ | |
4057 | if (!function_depth) | |
4058 | ggc_collect (); | |
b2583345 | 4059 | return false; |
8cd2462c JH |
4060 | } |
4061 | ||
a406865a | 4062 | gcc_assert (DECL_SAVED_TREE (fn)); |
726a989a | 4063 | |
4684cd27 MM |
4064 | /* We make a decision about linkage for these functions at the end |
4065 | of the compilation. Until that point, we do not want the back | |
4066 | end to output them -- but we do want it to see the bodies of | |
1a10290c | 4067 | these functions so that it can inline them as appropriate. */ |
4684cd27 MM |
4068 | if (DECL_DECLARED_INLINE_P (fn) || DECL_IMPLICIT_INSTANTIATION (fn)) |
4069 | { | |
1ef0df47 MM |
4070 | if (DECL_INTERFACE_KNOWN (fn)) |
4071 | /* We've already made a decision as to how this function will | |
4072 | be handled. */; | |
4073 | else if (!at_eof) | |
944b63db | 4074 | tentative_decl_linkage (fn); |
4684cd27 MM |
4075 | else |
4076 | import_export_decl (fn); | |
1a10290c MM |
4077 | |
4078 | /* If the user wants us to keep all inline functions, then mark | |
4079 | this function as needed so that finish_file will make sure to | |
fe2978fb MM |
4080 | output it later. Similarly, all dllexport'd functions must |
4081 | be emitted; there may be callers in other DLLs. */ | |
322d490e KT |
4082 | if (DECL_DECLARED_INLINE_P (fn) |
4083 | && !DECL_REALLY_EXTERN (fn) | |
4084 | && (flag_keep_inline_functions | |
4085 | || (flag_keep_inline_dllexport | |
4086 | && lookup_attribute ("dllexport", DECL_ATTRIBUTES (fn))))) | |
ffca9d53 JM |
4087 | { |
4088 | mark_needed (fn); | |
4089 | DECL_EXTERNAL (fn) = 0; | |
4090 | } | |
4684cd27 MM |
4091 | } |
4092 | ||
1f26ac87 JM |
4093 | /* If this is a constructor or destructor body, we have to clone |
4094 | it. */ | |
4095 | if (maybe_clone_body (fn)) | |
4096 | { | |
4097 | /* We don't want to process FN again, so pretend we've written | |
4098 | it out, even though we haven't. */ | |
4099 | TREE_ASM_WRITTEN (fn) = 1; | |
4100 | /* If this is an instantiation of a constexpr function, keep | |
4101 | DECL_SAVED_TREE for explain_invalid_constexpr_fn. */ | |
4102 | if (!is_instantiation_of_constexpr (fn)) | |
4103 | DECL_SAVED_TREE (fn) = NULL_TREE; | |
4104 | return false; | |
4105 | } | |
4106 | ||
8cd2462c JH |
4107 | /* There's no reason to do any of the work here if we're only doing |
4108 | semantic analysis; this code just generates RTL. */ | |
4109 | if (flag_syntax_only) | |
b2583345 JJ |
4110 | return false; |
4111 | ||
4112 | return true; | |
4113 | } | |
8cd2462c | 4114 | |
b2583345 JJ |
4115 | void |
4116 | expand_or_defer_fn (tree fn) | |
4117 | { | |
4118 | if (expand_or_defer_fn_1 (fn)) | |
4119 | { | |
4120 | function_depth++; | |
99edd65d | 4121 | |
b2583345 | 4122 | /* Expand or defer, at the whim of the compilation unit manager. */ |
3dafb85c | 4123 | cgraph_node::finalize_function (fn, function_depth > 1); |
6744a6ab | 4124 | emit_associated_thunks (fn); |
99edd65d | 4125 | |
b2583345 JJ |
4126 | function_depth--; |
4127 | } | |
8cd2462c JH |
4128 | } |
4129 | ||
6de9cd9a DN |
4130 | struct nrv_data |
4131 | { | |
c203e8a7 TS |
4132 | nrv_data () : visited (37) {} |
4133 | ||
6de9cd9a DN |
4134 | tree var; |
4135 | tree result; | |
c203e8a7 | 4136 | hash_table<pointer_hash <tree_node> > visited; |
6de9cd9a | 4137 | }; |
0d97bf4c | 4138 | |
6de9cd9a DN |
4139 | /* Helper function for walk_tree, used by finalize_nrv below. */ |
4140 | ||
4141 | static tree | |
4142 | finalize_nrv_r (tree* tp, int* walk_subtrees, void* data) | |
0d97bf4c | 4143 | { |
6de9cd9a | 4144 | struct nrv_data *dp = (struct nrv_data *)data; |
703c8606 | 4145 | tree_node **slot; |
07b2f2fd JM |
4146 | |
4147 | /* No need to walk into types. There wouldn't be any need to walk into | |
4148 | non-statements, except that we have to consider STMT_EXPRs. */ | |
0d97bf4c JM |
4149 | if (TYPE_P (*tp)) |
4150 | *walk_subtrees = 0; | |
6de9cd9a DN |
4151 | /* Change all returns to just refer to the RESULT_DECL; this is a nop, |
4152 | but differs from using NULL_TREE in that it indicates that we care | |
4153 | about the value of the RESULT_DECL. */ | |
5088b058 RH |
4154 | else if (TREE_CODE (*tp) == RETURN_EXPR) |
4155 | TREE_OPERAND (*tp, 0) = dp->result; | |
6de9cd9a DN |
4156 | /* Change all cleanups for the NRV to only run when an exception is |
4157 | thrown. */ | |
07b2f2fd | 4158 | else if (TREE_CODE (*tp) == CLEANUP_STMT |
6de9cd9a | 4159 | && CLEANUP_DECL (*tp) == dp->var) |
659e5a7a | 4160 | CLEANUP_EH_ONLY (*tp) = 1; |
350fae66 | 4161 | /* Replace the DECL_EXPR for the NRV with an initialization of the |
6de9cd9a | 4162 | RESULT_DECL, if needed. */ |
350fae66 RK |
4163 | else if (TREE_CODE (*tp) == DECL_EXPR |
4164 | && DECL_EXPR_DECL (*tp) == dp->var) | |
6de9cd9a DN |
4165 | { |
4166 | tree init; | |
4167 | if (DECL_INITIAL (dp->var) | |
4168 | && DECL_INITIAL (dp->var) != error_mark_node) | |
2d188530 JJ |
4169 | init = build2 (INIT_EXPR, void_type_node, dp->result, |
4170 | DECL_INITIAL (dp->var)); | |
6de9cd9a | 4171 | else |
c2255bc4 | 4172 | init = build_empty_stmt (EXPR_LOCATION (*tp)); |
2d188530 | 4173 | DECL_INITIAL (dp->var) = NULL_TREE; |
5e278028 | 4174 | SET_EXPR_LOCATION (init, EXPR_LOCATION (*tp)); |
6de9cd9a DN |
4175 | *tp = init; |
4176 | } | |
4177 | /* And replace all uses of the NRV with the RESULT_DECL. */ | |
4178 | else if (*tp == dp->var) | |
4179 | *tp = dp->result; | |
4180 | ||
4181 | /* Avoid walking into the same tree more than once. Unfortunately, we | |
4182 | can't just use walk_tree_without duplicates because it would only call | |
4183 | us for the first occurrence of dp->var in the function body. */ | |
703c8606 | 4184 | slot = dp->visited.find_slot (*tp, INSERT); |
6de9cd9a DN |
4185 | if (*slot) |
4186 | *walk_subtrees = 0; | |
4187 | else | |
4188 | *slot = *tp; | |
0d97bf4c JM |
4189 | |
4190 | /* Keep iterating. */ | |
4191 | return NULL_TREE; | |
4192 | } | |
4193 | ||
6de9cd9a | 4194 | /* Called from finish_function to implement the named return value |
5088b058 | 4195 | optimization by overriding all the RETURN_EXPRs and pertinent |
6de9cd9a DN |
4196 | CLEANUP_STMTs and replacing all occurrences of VAR with RESULT, the |
4197 | RESULT_DECL for the function. */ | |
f444e36b | 4198 | |
4985cde3 | 4199 | void |
6de9cd9a | 4200 | finalize_nrv (tree *tp, tree var, tree result) |
f444e36b | 4201 | { |
6de9cd9a DN |
4202 | struct nrv_data data; |
4203 | ||
add86e09 | 4204 | /* Copy name from VAR to RESULT. */ |
6de9cd9a | 4205 | DECL_NAME (result) = DECL_NAME (var); |
6de9cd9a DN |
4206 | /* Don't forget that we take its address. */ |
4207 | TREE_ADDRESSABLE (result) = TREE_ADDRESSABLE (var); | |
add86e09 JJ |
4208 | /* Finally set DECL_VALUE_EXPR to avoid assigning |
4209 | a stack slot at -O0 for the original var and debug info | |
4210 | uses RESULT location for VAR. */ | |
4211 | SET_DECL_VALUE_EXPR (var, result); | |
4212 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
6de9cd9a DN |
4213 | |
4214 | data.var = var; | |
4215 | data.result = result; | |
14588106 | 4216 | cp_walk_tree (tp, finalize_nrv_r, &data, 0); |
b850de4f | 4217 | } |
1799e5d5 | 4218 | \f |
a68ab351 JJ |
4219 | /* Create CP_OMP_CLAUSE_INFO for clause C. Returns true if it is invalid. */ |
4220 | ||
4221 | bool | |
4222 | cxx_omp_create_clause_info (tree c, tree type, bool need_default_ctor, | |
acf0174b JJ |
4223 | bool need_copy_ctor, bool need_copy_assignment, |
4224 | bool need_dtor) | |
a68ab351 JJ |
4225 | { |
4226 | int save_errorcount = errorcount; | |
4227 | tree info, t; | |
4228 | ||
4229 | /* Always allocate 3 elements for simplicity. These are the | |
4230 | function decls for the ctor, dtor, and assignment op. | |
4231 | This layout is known to the three lang hooks, | |
4232 | cxx_omp_clause_default_init, cxx_omp_clause_copy_init, | |
4233 | and cxx_omp_clause_assign_op. */ | |
4234 | info = make_tree_vec (3); | |
4235 | CP_OMP_CLAUSE_INFO (c) = info; | |
4236 | ||
ac177431 | 4237 | if (need_default_ctor || need_copy_ctor) |
a68ab351 JJ |
4238 | { |
4239 | if (need_default_ctor) | |
ac177431 | 4240 | t = get_default_ctor (type); |
a68ab351 | 4241 | else |
4577f730 | 4242 | t = get_copy_ctor (type, tf_warning_or_error); |
ac177431 JM |
4243 | |
4244 | if (t && !trivial_fn_p (t)) | |
4245 | TREE_VEC_ELT (info, 0) = t; | |
a68ab351 JJ |
4246 | } |
4247 | ||
acf0174b | 4248 | if (need_dtor && TYPE_HAS_NONTRIVIAL_DESTRUCTOR (type)) |
4577f730 | 4249 | TREE_VEC_ELT (info, 1) = get_dtor (type, tf_warning_or_error); |
a68ab351 | 4250 | |
ac177431 | 4251 | if (need_copy_assignment) |
a68ab351 | 4252 | { |
ac177431 JM |
4253 | t = get_copy_assign (type); |
4254 | ||
4255 | if (t && !trivial_fn_p (t)) | |
4256 | TREE_VEC_ELT (info, 2) = t; | |
a68ab351 JJ |
4257 | } |
4258 | ||
4259 | return errorcount != save_errorcount; | |
4260 | } | |
4261 | ||
acf0174b JJ |
4262 | /* Helper function for handle_omp_array_sections. Called recursively |
4263 | to handle multiple array-section-subscripts. C is the clause, | |
4264 | T current expression (initially OMP_CLAUSE_DECL), which is either | |
4265 | a TREE_LIST for array-section-subscript (TREE_PURPOSE is low-bound | |
4266 | expression if specified, TREE_VALUE length expression if specified, | |
4267 | TREE_CHAIN is what it has been specified after, or some decl. | |
4268 | TYPES vector is populated with array section types, MAYBE_ZERO_LEN | |
4269 | set to true if any of the array-section-subscript could have length | |
4270 | of zero (explicit or implicit), FIRST_NON_ONE is the index of the | |
4271 | first array-section-subscript which is known not to have length | |
4272 | of one. Given say: | |
4273 | map(a[:b][2:1][:c][:2][:d][e:f][2:5]) | |
4274 | FIRST_NON_ONE will be 3, array-section-subscript [:b], [2:1] and [:c] | |
4275 | all are or may have length of 1, array-section-subscript [:2] is the | |
4276 | first one knonwn not to have length 1. For array-section-subscript | |
4277 | <= FIRST_NON_ONE we diagnose non-contiguous arrays if low bound isn't | |
4278 | 0 or length isn't the array domain max + 1, for > FIRST_NON_ONE we | |
4279 | can if MAYBE_ZERO_LEN is false. MAYBE_ZERO_LEN will be true in the above | |
4280 | case though, as some lengths could be zero. */ | |
4281 | ||
4282 | static tree | |
4283 | handle_omp_array_sections_1 (tree c, tree t, vec<tree> &types, | |
4284 | bool &maybe_zero_len, unsigned int &first_non_one) | |
4285 | { | |
4286 | tree ret, low_bound, length, type; | |
4287 | if (TREE_CODE (t) != TREE_LIST) | |
4288 | { | |
4289 | if (error_operand_p (t)) | |
4290 | return error_mark_node; | |
4291 | if (type_dependent_expression_p (t)) | |
4292 | return NULL_TREE; | |
4293 | if (TREE_CODE (t) != VAR_DECL && TREE_CODE (t) != PARM_DECL) | |
4294 | { | |
4295 | if (processing_template_decl) | |
4296 | return NULL_TREE; | |
4297 | if (DECL_P (t)) | |
4298 | error_at (OMP_CLAUSE_LOCATION (c), | |
4299 | "%qD is not a variable in %qs clause", t, | |
4300 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4301 | else | |
4302 | error_at (OMP_CLAUSE_LOCATION (c), | |
4303 | "%qE is not a variable in %qs clause", t, | |
4304 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4305 | return error_mark_node; | |
4306 | } | |
4307 | else if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_DEPEND | |
4308 | && TREE_CODE (t) == VAR_DECL && DECL_THREAD_LOCAL_P (t)) | |
4309 | { | |
4310 | error_at (OMP_CLAUSE_LOCATION (c), | |
4311 | "%qD is threadprivate variable in %qs clause", t, | |
4312 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4313 | return error_mark_node; | |
4314 | } | |
4315 | t = convert_from_reference (t); | |
4316 | return t; | |
4317 | } | |
4318 | ||
4319 | ret = handle_omp_array_sections_1 (c, TREE_CHAIN (t), types, | |
4320 | maybe_zero_len, first_non_one); | |
4321 | if (ret == error_mark_node || ret == NULL_TREE) | |
4322 | return ret; | |
4323 | ||
4324 | type = TREE_TYPE (ret); | |
4325 | low_bound = TREE_PURPOSE (t); | |
4326 | length = TREE_VALUE (t); | |
4327 | if ((low_bound && type_dependent_expression_p (low_bound)) | |
4328 | || (length && type_dependent_expression_p (length))) | |
4329 | return NULL_TREE; | |
4330 | ||
4331 | if (low_bound == error_mark_node || length == error_mark_node) | |
4332 | return error_mark_node; | |
4333 | ||
4334 | if (low_bound && !INTEGRAL_TYPE_P (TREE_TYPE (low_bound))) | |
4335 | { | |
4336 | error_at (OMP_CLAUSE_LOCATION (c), | |
4337 | "low bound %qE of array section does not have integral type", | |
4338 | low_bound); | |
4339 | return error_mark_node; | |
4340 | } | |
4341 | if (length && !INTEGRAL_TYPE_P (TREE_TYPE (length))) | |
4342 | { | |
4343 | error_at (OMP_CLAUSE_LOCATION (c), | |
4344 | "length %qE of array section does not have integral type", | |
4345 | length); | |
4346 | return error_mark_node; | |
4347 | } | |
d90c0a59 JJ |
4348 | if (low_bound) |
4349 | low_bound = mark_rvalue_use (low_bound); | |
4350 | if (length) | |
4351 | length = mark_rvalue_use (length); | |
acf0174b JJ |
4352 | if (low_bound |
4353 | && TREE_CODE (low_bound) == INTEGER_CST | |
4354 | && TYPE_PRECISION (TREE_TYPE (low_bound)) | |
4355 | > TYPE_PRECISION (sizetype)) | |
4356 | low_bound = fold_convert (sizetype, low_bound); | |
4357 | if (length | |
4358 | && TREE_CODE (length) == INTEGER_CST | |
4359 | && TYPE_PRECISION (TREE_TYPE (length)) | |
4360 | > TYPE_PRECISION (sizetype)) | |
4361 | length = fold_convert (sizetype, length); | |
4362 | if (low_bound == NULL_TREE) | |
4363 | low_bound = integer_zero_node; | |
4364 | ||
4365 | if (length != NULL_TREE) | |
4366 | { | |
4367 | if (!integer_nonzerop (length)) | |
4368 | maybe_zero_len = true; | |
4369 | if (first_non_one == types.length () | |
4370 | && (TREE_CODE (length) != INTEGER_CST || integer_onep (length))) | |
4371 | first_non_one++; | |
4372 | } | |
4373 | if (TREE_CODE (type) == ARRAY_TYPE) | |
4374 | { | |
4375 | if (length == NULL_TREE | |
4376 | && (TYPE_DOMAIN (type) == NULL_TREE | |
4377 | || TYPE_MAX_VALUE (TYPE_DOMAIN (type)) == NULL_TREE)) | |
4378 | { | |
4379 | error_at (OMP_CLAUSE_LOCATION (c), | |
4380 | "for unknown bound array type length expression must " | |
4381 | "be specified"); | |
4382 | return error_mark_node; | |
4383 | } | |
4384 | if (TREE_CODE (low_bound) == INTEGER_CST | |
4385 | && tree_int_cst_sgn (low_bound) == -1) | |
4386 | { | |
4387 | error_at (OMP_CLAUSE_LOCATION (c), | |
4388 | "negative low bound in array section in %qs clause", | |
4389 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4390 | return error_mark_node; | |
4391 | } | |
4392 | if (length != NULL_TREE | |
4393 | && TREE_CODE (length) == INTEGER_CST | |
4394 | && tree_int_cst_sgn (length) == -1) | |
4395 | { | |
4396 | error_at (OMP_CLAUSE_LOCATION (c), | |
4397 | "negative length in array section in %qs clause", | |
4398 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4399 | return error_mark_node; | |
4400 | } | |
4401 | if (TYPE_DOMAIN (type) | |
4402 | && TYPE_MAX_VALUE (TYPE_DOMAIN (type)) | |
4403 | && TREE_CODE (TYPE_MAX_VALUE (TYPE_DOMAIN (type))) | |
4404 | == INTEGER_CST) | |
4405 | { | |
4406 | tree size = size_binop (PLUS_EXPR, | |
4407 | TYPE_MAX_VALUE (TYPE_DOMAIN (type)), | |
4408 | size_one_node); | |
4409 | if (TREE_CODE (low_bound) == INTEGER_CST) | |
4410 | { | |
4411 | if (tree_int_cst_lt (size, low_bound)) | |
4412 | { | |
4413 | error_at (OMP_CLAUSE_LOCATION (c), | |
4414 | "low bound %qE above array section size " | |
4415 | "in %qs clause", low_bound, | |
4416 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4417 | return error_mark_node; | |
4418 | } | |
4419 | if (tree_int_cst_equal (size, low_bound)) | |
4420 | maybe_zero_len = true; | |
4421 | else if (length == NULL_TREE | |
4422 | && first_non_one == types.length () | |
4423 | && tree_int_cst_equal | |
4424 | (TYPE_MAX_VALUE (TYPE_DOMAIN (type)), | |
4425 | low_bound)) | |
4426 | first_non_one++; | |
4427 | } | |
4428 | else if (length == NULL_TREE) | |
4429 | { | |
4430 | maybe_zero_len = true; | |
4431 | if (first_non_one == types.length ()) | |
4432 | first_non_one++; | |
4433 | } | |
4434 | if (length && TREE_CODE (length) == INTEGER_CST) | |
4435 | { | |
4436 | if (tree_int_cst_lt (size, length)) | |
4437 | { | |
4438 | error_at (OMP_CLAUSE_LOCATION (c), | |
4439 | "length %qE above array section size " | |
4440 | "in %qs clause", length, | |
4441 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4442 | return error_mark_node; | |
4443 | } | |
4444 | if (TREE_CODE (low_bound) == INTEGER_CST) | |
4445 | { | |
4446 | tree lbpluslen | |
4447 | = size_binop (PLUS_EXPR, | |
4448 | fold_convert (sizetype, low_bound), | |
4449 | fold_convert (sizetype, length)); | |
4450 | if (TREE_CODE (lbpluslen) == INTEGER_CST | |
4451 | && tree_int_cst_lt (size, lbpluslen)) | |
4452 | { | |
4453 | error_at (OMP_CLAUSE_LOCATION (c), | |
4454 | "high bound %qE above array section size " | |
4455 | "in %qs clause", lbpluslen, | |
4456 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4457 | return error_mark_node; | |
4458 | } | |
4459 | } | |
4460 | } | |
4461 | } | |
4462 | else if (length == NULL_TREE) | |
4463 | { | |
4464 | maybe_zero_len = true; | |
4465 | if (first_non_one == types.length ()) | |
4466 | first_non_one++; | |
4467 | } | |
4468 | ||
4469 | /* For [lb:] we will need to evaluate lb more than once. */ | |
4470 | if (length == NULL_TREE && OMP_CLAUSE_CODE (c) != OMP_CLAUSE_DEPEND) | |
4471 | { | |
4472 | tree lb = cp_save_expr (low_bound); | |
4473 | if (lb != low_bound) | |
4474 | { | |
4475 | TREE_PURPOSE (t) = lb; | |
4476 | low_bound = lb; | |
4477 | } | |
4478 | } | |
4479 | } | |
4480 | else if (TREE_CODE (type) == POINTER_TYPE) | |
4481 | { | |
4482 | if (length == NULL_TREE) | |
4483 | { | |
4484 | error_at (OMP_CLAUSE_LOCATION (c), | |
4485 | "for pointer type length expression must be specified"); | |
4486 | return error_mark_node; | |
4487 | } | |
4488 | /* If there is a pointer type anywhere but in the very first | |
4489 | array-section-subscript, the array section can't be contiguous. */ | |
4490 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_DEPEND | |
4491 | && TREE_CODE (TREE_CHAIN (t)) == TREE_LIST) | |
4492 | { | |
4493 | error_at (OMP_CLAUSE_LOCATION (c), | |
4494 | "array section is not contiguous in %qs clause", | |
4495 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
4496 | return error_mark_node; | |
4497 | } | |
4498 | } | |
4499 | else | |
4500 | { | |
4501 | error_at (OMP_CLAUSE_LOCATION (c), | |
4502 | "%qE does not have pointer or array type", ret); | |
4503 | return error_mark_node; | |
4504 | } | |
4505 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_DEPEND) | |
4506 | types.safe_push (TREE_TYPE (ret)); | |
4507 | /* We will need to evaluate lb more than once. */ | |
4508 | tree lb = cp_save_expr (low_bound); | |
4509 | if (lb != low_bound) | |
4510 | { | |
4511 | TREE_PURPOSE (t) = lb; | |
4512 | low_bound = lb; | |
4513 | } | |
4514 | ret = grok_array_decl (OMP_CLAUSE_LOCATION (c), ret, low_bound, false); | |
4515 | return ret; | |
4516 | } | |
4517 | ||
4518 | /* Handle array sections for clause C. */ | |
4519 | ||
4520 | static bool | |
4521 | handle_omp_array_sections (tree c) | |
4522 | { | |
4523 | bool maybe_zero_len = false; | |
4524 | unsigned int first_non_one = 0; | |
ef062b13 | 4525 | auto_vec<tree> types; |
acf0174b JJ |
4526 | tree first = handle_omp_array_sections_1 (c, OMP_CLAUSE_DECL (c), types, |
4527 | maybe_zero_len, first_non_one); | |
4528 | if (first == error_mark_node) | |
ef062b13 | 4529 | return true; |
acf0174b | 4530 | if (first == NULL_TREE) |
ef062b13 | 4531 | return false; |
acf0174b JJ |
4532 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND) |
4533 | { | |
4534 | tree t = OMP_CLAUSE_DECL (c); | |
4535 | tree tem = NULL_TREE; | |
acf0174b JJ |
4536 | if (processing_template_decl) |
4537 | return false; | |
4538 | /* Need to evaluate side effects in the length expressions | |
4539 | if any. */ | |
4540 | while (TREE_CODE (t) == TREE_LIST) | |
4541 | { | |
4542 | if (TREE_VALUE (t) && TREE_SIDE_EFFECTS (TREE_VALUE (t))) | |
4543 | { | |
4544 | if (tem == NULL_TREE) | |
4545 | tem = TREE_VALUE (t); | |
4546 | else | |
4547 | tem = build2 (COMPOUND_EXPR, TREE_TYPE (tem), | |
4548 | TREE_VALUE (t), tem); | |
4549 | } | |
4550 | t = TREE_CHAIN (t); | |
4551 | } | |
4552 | if (tem) | |
4553 | first = build2 (COMPOUND_EXPR, TREE_TYPE (first), tem, first); | |
4554 | OMP_CLAUSE_DECL (c) = first; | |
4555 | } | |
4556 | else | |
4557 | { | |
4558 | unsigned int num = types.length (), i; | |
4559 | tree t, side_effects = NULL_TREE, size = NULL_TREE; | |
4560 | tree condition = NULL_TREE; | |
4561 | ||
4562 | if (int_size_in_bytes (TREE_TYPE (first)) <= 0) | |
4563 | maybe_zero_len = true; | |
4564 | if (processing_template_decl && maybe_zero_len) | |
ef062b13 | 4565 | return false; |
acf0174b JJ |
4566 | |
4567 | for (i = num, t = OMP_CLAUSE_DECL (c); i > 0; | |
4568 | t = TREE_CHAIN (t)) | |
4569 | { | |
4570 | tree low_bound = TREE_PURPOSE (t); | |
4571 | tree length = TREE_VALUE (t); | |
4572 | ||
4573 | i--; | |
4574 | if (low_bound | |
4575 | && TREE_CODE (low_bound) == INTEGER_CST | |
4576 | && TYPE_PRECISION (TREE_TYPE (low_bound)) | |
4577 | > TYPE_PRECISION (sizetype)) | |
4578 | low_bound = fold_convert (sizetype, low_bound); | |
4579 | if (length | |
4580 | && TREE_CODE (length) == INTEGER_CST | |
4581 | && TYPE_PRECISION (TREE_TYPE (length)) | |
4582 | > TYPE_PRECISION (sizetype)) | |
4583 | length = fold_convert (sizetype, length); | |
4584 | if (low_bound == NULL_TREE) | |
4585 | low_bound = integer_zero_node; | |
4586 | if (!maybe_zero_len && i > first_non_one) | |
4587 | { | |
4588 | if (integer_nonzerop (low_bound)) | |
4589 | goto do_warn_noncontiguous; | |
4590 | if (length != NULL_TREE | |
4591 | && TREE_CODE (length) == INTEGER_CST | |
4592 | && TYPE_DOMAIN (types[i]) | |
4593 | && TYPE_MAX_VALUE (TYPE_DOMAIN (types[i])) | |
4594 | && TREE_CODE (TYPE_MAX_VALUE (TYPE_DOMAIN (types[i]))) | |
4595 | == INTEGER_CST) | |
4596 | { | |
4597 | tree size; | |
4598 | size = size_binop (PLUS_EXPR, | |
4599 | TYPE_MAX_VALUE (TYPE_DOMAIN (types[i])), | |
4600 | size_one_node); | |
4601 | if (!tree_int_cst_equal (length, size)) | |
4602 | { | |
4603 | do_warn_noncontiguous: | |
4604 | error_at (OMP_CLAUSE_LOCATION (c), | |
4605 | "array section is not contiguous in %qs " | |
4606 | "clause", | |
4607 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
acf0174b JJ |
4608 | return true; |
4609 | } | |
4610 | } | |
4611 | if (!processing_template_decl | |
4612 | && length != NULL_TREE | |
4613 | && TREE_SIDE_EFFECTS (length)) | |
4614 | { | |
4615 | if (side_effects == NULL_TREE) | |
4616 | side_effects = length; | |
4617 | else | |
4618 | side_effects = build2 (COMPOUND_EXPR, | |
4619 | TREE_TYPE (side_effects), | |
4620 | length, side_effects); | |
4621 | } | |
4622 | } | |
4623 | else if (processing_template_decl) | |
4624 | continue; | |
4625 | else | |
4626 | { | |
4627 | tree l; | |
4628 | ||
4629 | if (i > first_non_one && length && integer_nonzerop (length)) | |
4630 | continue; | |
4631 | if (length) | |
4632 | l = fold_convert (sizetype, length); | |
4633 | else | |
4634 | { | |
4635 | l = size_binop (PLUS_EXPR, | |
4636 | TYPE_MAX_VALUE (TYPE_DOMAIN (types[i])), | |
4637 | size_one_node); | |
4638 | l = size_binop (MINUS_EXPR, l, | |
4639 | fold_convert (sizetype, low_bound)); | |
4640 | } | |
4641 | if (i > first_non_one) | |
4642 | { | |
4643 | l = fold_build2 (NE_EXPR, boolean_type_node, l, | |
4644 | size_zero_node); | |
4645 | if (condition == NULL_TREE) | |
4646 | condition = l; | |
4647 | else | |
4648 | condition = fold_build2 (BIT_AND_EXPR, boolean_type_node, | |
4649 | l, condition); | |
4650 | } | |
4651 | else if (size == NULL_TREE) | |
4652 | { | |
4653 | size = size_in_bytes (TREE_TYPE (types[i])); | |
4654 | size = size_binop (MULT_EXPR, size, l); | |
4655 | if (condition) | |
4656 | size = fold_build3 (COND_EXPR, sizetype, condition, | |
4657 | size, size_zero_node); | |
4658 | } | |
4659 | else | |
4660 | size = size_binop (MULT_EXPR, size, l); | |
4661 | } | |
4662 | } | |
acf0174b JJ |
4663 | if (!processing_template_decl) |
4664 | { | |
4665 | if (side_effects) | |
4666 | size = build2 (COMPOUND_EXPR, sizetype, side_effects, size); | |
4667 | OMP_CLAUSE_DECL (c) = first; | |
4668 | OMP_CLAUSE_SIZE (c) = size; | |
4669 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_MAP) | |
4670 | return false; | |
4671 | tree c2 = build_omp_clause (OMP_CLAUSE_LOCATION (c), | |
4672 | OMP_CLAUSE_MAP); | |
4673 | OMP_CLAUSE_MAP_KIND (c2) = OMP_CLAUSE_MAP_POINTER; | |
4674 | if (!cxx_mark_addressable (t)) | |
4675 | return false; | |
4676 | OMP_CLAUSE_DECL (c2) = t; | |
4677 | t = build_fold_addr_expr (first); | |
4678 | t = fold_convert_loc (OMP_CLAUSE_LOCATION (c), | |
4679 | ptrdiff_type_node, t); | |
4680 | tree ptr = OMP_CLAUSE_DECL (c2); | |
4681 | ptr = convert_from_reference (ptr); | |
4682 | if (!POINTER_TYPE_P (TREE_TYPE (ptr))) | |
4683 | ptr = build_fold_addr_expr (ptr); | |
4684 | t = fold_build2_loc (OMP_CLAUSE_LOCATION (c), MINUS_EXPR, | |
4685 | ptrdiff_type_node, t, | |
4686 | fold_convert_loc (OMP_CLAUSE_LOCATION (c), | |
4687 | ptrdiff_type_node, ptr)); | |
4688 | OMP_CLAUSE_SIZE (c2) = t; | |
4689 | OMP_CLAUSE_CHAIN (c2) = OMP_CLAUSE_CHAIN (c); | |
4690 | OMP_CLAUSE_CHAIN (c) = c2; | |
4691 | ptr = OMP_CLAUSE_DECL (c2); | |
4692 | if (TREE_CODE (TREE_TYPE (ptr)) == REFERENCE_TYPE | |
4693 | && POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (ptr)))) | |
4694 | { | |
4695 | tree c3 = build_omp_clause (OMP_CLAUSE_LOCATION (c), | |
4696 | OMP_CLAUSE_MAP); | |
4697 | OMP_CLAUSE_MAP_KIND (c3) = OMP_CLAUSE_MAP_POINTER; | |
4698 | OMP_CLAUSE_DECL (c3) = ptr; | |
4699 | OMP_CLAUSE_DECL (c2) = convert_from_reference (ptr); | |
4700 | OMP_CLAUSE_SIZE (c3) = size_zero_node; | |
4701 | OMP_CLAUSE_CHAIN (c3) = OMP_CLAUSE_CHAIN (c2); | |
4702 | OMP_CLAUSE_CHAIN (c2) = c3; | |
4703 | } | |
4704 | } | |
4705 | } | |
4706 | return false; | |
4707 | } | |
4708 | ||
4709 | /* Return identifier to look up for omp declare reduction. */ | |
4710 | ||
4711 | tree | |
4712 | omp_reduction_id (enum tree_code reduction_code, tree reduction_id, tree type) | |
4713 | { | |
4714 | const char *p = NULL; | |
4715 | const char *m = NULL; | |
4716 | switch (reduction_code) | |
4717 | { | |
4718 | case PLUS_EXPR: | |
4719 | case MULT_EXPR: | |
4720 | case MINUS_EXPR: | |
4721 | case BIT_AND_EXPR: | |
4722 | case BIT_XOR_EXPR: | |
4723 | case BIT_IOR_EXPR: | |
4724 | case TRUTH_ANDIF_EXPR: | |
4725 | case TRUTH_ORIF_EXPR: | |
4726 | reduction_id = ansi_opname (reduction_code); | |
4727 | break; | |
4728 | case MIN_EXPR: | |
4729 | p = "min"; | |
4730 | break; | |
4731 | case MAX_EXPR: | |
4732 | p = "max"; | |
4733 | break; | |
4734 | default: | |
4735 | break; | |
4736 | } | |
4737 | ||
4738 | if (p == NULL) | |
4739 | { | |
4740 | if (TREE_CODE (reduction_id) != IDENTIFIER_NODE) | |
4741 | return error_mark_node; | |
4742 | p = IDENTIFIER_POINTER (reduction_id); | |
4743 | } | |
4744 | ||
4745 | if (type != NULL_TREE) | |
4746 | m = mangle_type_string (TYPE_MAIN_VARIANT (type)); | |
4747 | ||
4748 | const char prefix[] = "omp declare reduction "; | |
4749 | size_t lenp = sizeof (prefix); | |
4750 | if (strncmp (p, prefix, lenp - 1) == 0) | |
4751 | lenp = 1; | |
4752 | size_t len = strlen (p); | |
4753 | size_t lenm = m ? strlen (m) + 1 : 0; | |
4754 | char *name = XALLOCAVEC (char, lenp + len + lenm); | |
4755 | if (lenp > 1) | |
4756 | memcpy (name, prefix, lenp - 1); | |
4757 | memcpy (name + lenp - 1, p, len + 1); | |
4758 | if (m) | |
4759 | { | |
4760 | name[lenp + len - 1] = '~'; | |
4761 | memcpy (name + lenp + len, m, lenm); | |
4762 | } | |
4763 | return get_identifier (name); | |
4764 | } | |
4765 | ||
4766 | /* Lookup OpenMP UDR ID for TYPE, return the corresponding artificial | |
4767 | FUNCTION_DECL or NULL_TREE if not found. */ | |
4768 | ||
4769 | static tree | |
4770 | omp_reduction_lookup (location_t loc, tree id, tree type, tree *baselinkp, | |
4771 | vec<tree> *ambiguousp) | |
4772 | { | |
4773 | tree orig_id = id; | |
4774 | tree baselink = NULL_TREE; | |
4775 | if (identifier_p (id)) | |
4776 | { | |
4777 | cp_id_kind idk; | |
4778 | bool nonint_cst_expression_p; | |
4779 | const char *error_msg; | |
4780 | id = omp_reduction_id (ERROR_MARK, id, type); | |
4781 | tree decl = lookup_name (id); | |
4782 | if (decl == NULL_TREE) | |
4783 | decl = error_mark_node; | |
4784 | id = finish_id_expression (id, decl, NULL_TREE, &idk, false, true, | |
4785 | &nonint_cst_expression_p, false, true, false, | |
4786 | false, &error_msg, loc); | |
4787 | if (idk == CP_ID_KIND_UNQUALIFIED | |
4788 | && identifier_p (id)) | |
4789 | { | |
4790 | vec<tree, va_gc> *args = NULL; | |
4791 | vec_safe_push (args, build_reference_type (type)); | |
cdc23b1b | 4792 | id = perform_koenig_lookup (id, args, tf_none); |
acf0174b JJ |
4793 | } |
4794 | } | |
4795 | else if (TREE_CODE (id) == SCOPE_REF) | |
4796 | id = lookup_qualified_name (TREE_OPERAND (id, 0), | |
4797 | omp_reduction_id (ERROR_MARK, | |
4798 | TREE_OPERAND (id, 1), | |
4799 | type), | |
4800 | false, false); | |
4801 | tree fns = id; | |
4802 | if (id && is_overloaded_fn (id)) | |
4803 | id = get_fns (id); | |
4804 | for (; id; id = OVL_NEXT (id)) | |
4805 | { | |
4806 | tree fndecl = OVL_CURRENT (id); | |
4807 | if (TREE_CODE (fndecl) == FUNCTION_DECL) | |
4808 | { | |
4809 | tree argtype = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (fndecl))); | |
4810 | if (same_type_p (TREE_TYPE (argtype), type)) | |
4811 | break; | |
4812 | } | |
4813 | } | |
4814 | if (id && BASELINK_P (fns)) | |
4815 | { | |
4816 | if (baselinkp) | |
4817 | *baselinkp = fns; | |
4818 | else | |
4819 | baselink = fns; | |
4820 | } | |
4821 | if (id == NULL_TREE && CLASS_TYPE_P (type) && TYPE_BINFO (type)) | |
4822 | { | |
4823 | vec<tree> ambiguous = vNULL; | |
4824 | tree binfo = TYPE_BINFO (type), base_binfo, ret = NULL_TREE; | |
4825 | unsigned int ix; | |
4826 | if (ambiguousp == NULL) | |
4827 | ambiguousp = &ambiguous; | |
4828 | for (ix = 0; BINFO_BASE_ITERATE (binfo, ix, base_binfo); ix++) | |
4829 | { | |
4830 | id = omp_reduction_lookup (loc, orig_id, BINFO_TYPE (base_binfo), | |
4831 | baselinkp ? baselinkp : &baselink, | |
4832 | ambiguousp); | |
4833 | if (id == NULL_TREE) | |
4834 | continue; | |
4835 | if (!ambiguousp->is_empty ()) | |
4836 | ambiguousp->safe_push (id); | |
4837 | else if (ret != NULL_TREE) | |
4838 | { | |
4839 | ambiguousp->safe_push (ret); | |
4840 | ambiguousp->safe_push (id); | |
4841 | ret = NULL_TREE; | |
4842 | } | |
4843 | else | |
4844 | ret = id; | |
4845 | } | |
4846 | if (ambiguousp != &ambiguous) | |
4847 | return ret; | |
4848 | if (!ambiguous.is_empty ()) | |
4849 | { | |
4850 | const char *str = _("candidates are:"); | |
4851 | unsigned int idx; | |
4852 | tree udr; | |
4853 | error_at (loc, "user defined reduction lookup is ambiguous"); | |
4854 | FOR_EACH_VEC_ELT (ambiguous, idx, udr) | |
4855 | { | |
4856 | inform (DECL_SOURCE_LOCATION (udr), "%s %#D", str, udr); | |
4857 | if (idx == 0) | |
4858 | str = get_spaces (str); | |
4859 | } | |
4860 | ambiguous.release (); | |
4861 | ret = error_mark_node; | |
4862 | baselink = NULL_TREE; | |
4863 | } | |
4864 | id = ret; | |
4865 | } | |
4866 | if (id && baselink) | |
4867 | perform_or_defer_access_check (BASELINK_BINFO (baselink), | |
4868 | id, id, tf_warning_or_error); | |
4869 | return id; | |
4870 | } | |
4871 | ||
4872 | /* Helper function for cp_parser_omp_declare_reduction_exprs | |
4873 | and tsubst_omp_udr. | |
4874 | Remove CLEANUP_STMT for data (omp_priv variable). | |
4875 | Also append INIT_EXPR for DECL_INITIAL of omp_priv after its | |
4876 | DECL_EXPR. */ | |
4877 | ||
4878 | tree | |
4879 | cp_remove_omp_priv_cleanup_stmt (tree *tp, int *walk_subtrees, void *data) | |
4880 | { | |
4881 | if (TYPE_P (*tp)) | |
4882 | *walk_subtrees = 0; | |
4883 | else if (TREE_CODE (*tp) == CLEANUP_STMT && CLEANUP_DECL (*tp) == (tree) data) | |
4884 | *tp = CLEANUP_BODY (*tp); | |
4885 | else if (TREE_CODE (*tp) == DECL_EXPR) | |
4886 | { | |
4887 | tree decl = DECL_EXPR_DECL (*tp); | |
4888 | if (!processing_template_decl | |
4889 | && decl == (tree) data | |
4890 | && DECL_INITIAL (decl) | |
4891 | && DECL_INITIAL (decl) != error_mark_node) | |
4892 | { | |
4893 | tree list = NULL_TREE; | |
4894 | append_to_statement_list_force (*tp, &list); | |
4895 | tree init_expr = build2 (INIT_EXPR, void_type_node, | |
4896 | decl, DECL_INITIAL (decl)); | |
4897 | DECL_INITIAL (decl) = NULL_TREE; | |
4898 | append_to_statement_list_force (init_expr, &list); | |
4899 | *tp = list; | |
4900 | } | |
4901 | } | |
4902 | return NULL_TREE; | |
4903 | } | |
4904 | ||
4905 | /* Data passed from cp_check_omp_declare_reduction to | |
4906 | cp_check_omp_declare_reduction_r. */ | |
4907 | ||
4908 | struct cp_check_omp_declare_reduction_data | |
4909 | { | |
4910 | location_t loc; | |
4911 | tree stmts[7]; | |
4912 | bool combiner_p; | |
4913 | }; | |
4914 | ||
4915 | /* Helper function for cp_check_omp_declare_reduction, called via | |
4916 | cp_walk_tree. */ | |
4917 | ||
4918 | static tree | |
4919 | cp_check_omp_declare_reduction_r (tree *tp, int *, void *data) | |
4920 | { | |
4921 | struct cp_check_omp_declare_reduction_data *udr_data | |
4922 | = (struct cp_check_omp_declare_reduction_data *) data; | |
4923 | if (SSA_VAR_P (*tp) | |
4924 | && !DECL_ARTIFICIAL (*tp) | |
4925 | && *tp != DECL_EXPR_DECL (udr_data->stmts[udr_data->combiner_p ? 0 : 3]) | |
4926 | && *tp != DECL_EXPR_DECL (udr_data->stmts[udr_data->combiner_p ? 1 : 4])) | |
4927 | { | |
4928 | location_t loc = udr_data->loc; | |
4929 | if (udr_data->combiner_p) | |
4930 | error_at (loc, "%<#pragma omp declare reduction%> combiner refers to " | |
4931 | "variable %qD which is not %<omp_out%> nor %<omp_in%>", | |
4932 | *tp); | |
4933 | else | |
4934 | error_at (loc, "%<#pragma omp declare reduction%> initializer refers " | |
4935 | "to variable %qD which is not %<omp_priv%> nor " | |
4936 | "%<omp_orig%>", | |
4937 | *tp); | |
4938 | return *tp; | |
4939 | } | |
4940 | return NULL_TREE; | |
4941 | } | |
4942 | ||
4943 | /* Diagnose violation of OpenMP #pragma omp declare reduction restrictions. */ | |
4944 | ||
4945 | void | |
4946 | cp_check_omp_declare_reduction (tree udr) | |
4947 | { | |
4948 | tree type = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (udr))); | |
4949 | gcc_assert (TREE_CODE (type) == REFERENCE_TYPE); | |
4950 | type = TREE_TYPE (type); | |
4951 | int i; | |
4952 | location_t loc = DECL_SOURCE_LOCATION (udr); | |
4953 | ||
4954 | if (type == error_mark_node) | |
4955 | return; | |
4956 | if (ARITHMETIC_TYPE_P (type)) | |
4957 | { | |
4958 | static enum tree_code predef_codes[] | |
4959 | = { PLUS_EXPR, MULT_EXPR, MINUS_EXPR, BIT_AND_EXPR, BIT_XOR_EXPR, | |
4960 | BIT_IOR_EXPR, TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR }; | |
4961 | for (i = 0; i < 8; i++) | |
4962 | { | |
4963 | tree id = omp_reduction_id (predef_codes[i], NULL_TREE, NULL_TREE); | |
4964 | const char *n1 = IDENTIFIER_POINTER (DECL_NAME (udr)); | |
4965 | const char *n2 = IDENTIFIER_POINTER (id); | |
4966 | if (strncmp (n1, n2, IDENTIFIER_LENGTH (id)) == 0 | |
4967 | && (n1[IDENTIFIER_LENGTH (id)] == '~' | |
4968 | || n1[IDENTIFIER_LENGTH (id)] == '\0')) | |
4969 | break; | |
4970 | } | |
4971 | ||
4972 | if (i == 8 | |
4973 | && TREE_CODE (type) != COMPLEX_EXPR) | |
4974 | { | |
4975 | const char prefix_minmax[] = "omp declare reduction m"; | |
4976 | size_t prefix_size = sizeof (prefix_minmax) - 1; | |
4977 | const char *n = IDENTIFIER_POINTER (DECL_NAME (udr)); | |
4978 | if (strncmp (IDENTIFIER_POINTER (DECL_NAME (udr)), | |
4979 | prefix_minmax, prefix_size) == 0 | |
4980 | && ((n[prefix_size] == 'i' && n[prefix_size + 1] == 'n') | |
4981 | || (n[prefix_size] == 'a' && n[prefix_size + 1] == 'x')) | |
4982 | && (n[prefix_size + 2] == '~' || n[prefix_size + 2] == '\0')) | |
4983 | i = 0; | |
4984 | } | |
4985 | if (i < 8) | |
4986 | { | |
4987 | error_at (loc, "predeclared arithmetic type %qT in " | |
4988 | "%<#pragma omp declare reduction%>", type); | |
4989 | return; | |
4990 | } | |
4991 | } | |
4992 | else if (TREE_CODE (type) == FUNCTION_TYPE | |
4993 | || TREE_CODE (type) == METHOD_TYPE | |
4994 | || TREE_CODE (type) == ARRAY_TYPE) | |
4995 | { | |
4996 | error_at (loc, "function or array type %qT in " | |
4997 | "%<#pragma omp declare reduction%>", type); | |
4998 | return; | |
4999 | } | |
5000 | else if (TREE_CODE (type) == REFERENCE_TYPE) | |
5001 | { | |
5002 | error_at (loc, "reference type %qT in %<#pragma omp declare reduction%>", | |
5003 | type); | |
5004 | return; | |
5005 | } | |
5006 | else if (TYPE_QUALS_NO_ADDR_SPACE (type)) | |
5007 | { | |
5008 | error_at (loc, "const, volatile or __restrict qualified type %qT in " | |
5009 | "%<#pragma omp declare reduction%>", type); | |
5010 | return; | |
5011 | } | |
5012 | ||
5013 | tree body = DECL_SAVED_TREE (udr); | |
5014 | if (body == NULL_TREE || TREE_CODE (body) != STATEMENT_LIST) | |
5015 | return; | |
5016 | ||
5017 | tree_stmt_iterator tsi; | |
5018 | struct cp_check_omp_declare_reduction_data data; | |
5019 | memset (data.stmts, 0, sizeof data.stmts); | |
5020 | for (i = 0, tsi = tsi_start (body); | |
5021 | i < 7 && !tsi_end_p (tsi); | |
5022 | i++, tsi_next (&tsi)) | |
5023 | data.stmts[i] = tsi_stmt (tsi); | |
5024 | data.loc = loc; | |
5025 | gcc_assert (tsi_end_p (tsi)); | |
5026 | if (i >= 3) | |
5027 | { | |
5028 | gcc_assert (TREE_CODE (data.stmts[0]) == DECL_EXPR | |
5029 | && TREE_CODE (data.stmts[1]) == DECL_EXPR); | |
5030 | if (TREE_NO_WARNING (DECL_EXPR_DECL (data.stmts[0]))) | |
5031 | return; | |
5032 | data.combiner_p = true; | |
5033 | if (cp_walk_tree (&data.stmts[2], cp_check_omp_declare_reduction_r, | |
5034 | &data, NULL)) | |
5035 | TREE_NO_WARNING (DECL_EXPR_DECL (data.stmts[0])) = 1; | |
5036 | } | |
5037 | if (i >= 6) | |
5038 | { | |
5039 | gcc_assert (TREE_CODE (data.stmts[3]) == DECL_EXPR | |
5040 | && TREE_CODE (data.stmts[4]) == DECL_EXPR); | |
5041 | data.combiner_p = false; | |
5042 | if (cp_walk_tree (&data.stmts[5], cp_check_omp_declare_reduction_r, | |
5043 | &data, NULL) | |
5044 | || cp_walk_tree (&DECL_INITIAL (DECL_EXPR_DECL (data.stmts[3])), | |
5045 | cp_check_omp_declare_reduction_r, &data, NULL)) | |
5046 | TREE_NO_WARNING (DECL_EXPR_DECL (data.stmts[0])) = 1; | |
5047 | if (i == 7) | |
5048 | gcc_assert (TREE_CODE (data.stmts[6]) == DECL_EXPR); | |
5049 | } | |
5050 | } | |
5051 | ||
5052 | /* Helper function of finish_omp_clauses. Clone STMT as if we were making | |
5053 | an inline call. But, remap | |
5054 | the OMP_DECL1 VAR_DECL (omp_out resp. omp_orig) to PLACEHOLDER | |
5055 | and OMP_DECL2 VAR_DECL (omp_in resp. omp_priv) to DECL. */ | |
5056 | ||
5057 | static tree | |
5058 | clone_omp_udr (tree stmt, tree omp_decl1, tree omp_decl2, | |
5059 | tree decl, tree placeholder) | |
5060 | { | |
5061 | copy_body_data id; | |
b787e7a2 | 5062 | hash_map<tree, tree> decl_map; |
acf0174b | 5063 | |
b787e7a2 TS |
5064 | decl_map.put (omp_decl1, placeholder); |
5065 | decl_map.put (omp_decl2, decl); | |
acf0174b JJ |
5066 | memset (&id, 0, sizeof (id)); |
5067 | id.src_fn = DECL_CONTEXT (omp_decl1); | |
5068 | id.dst_fn = current_function_decl; | |
5069 | id.src_cfun = DECL_STRUCT_FUNCTION (id.src_fn); | |
b787e7a2 | 5070 | id.decl_map = &decl_map; |
acf0174b JJ |
5071 | |
5072 | id.copy_decl = copy_decl_no_change; | |
5073 | id.transform_call_graph_edges = CB_CGE_DUPLICATE; | |
5074 | id.transform_new_cfg = true; | |
5075 | id.transform_return_to_modify = false; | |
5076 | id.transform_lang_insert_block = NULL; | |
5077 | id.eh_lp_nr = 0; | |
5078 | walk_tree (&stmt, copy_tree_body_r, &id, NULL); | |
acf0174b JJ |
5079 | return stmt; |
5080 | } | |
5081 | ||
5082 | /* Helper function of finish_omp_clauses, called via cp_walk_tree. | |
5083 | Find OMP_CLAUSE_PLACEHOLDER (passed in DATA) in *TP. */ | |
5084 | ||
5085 | static tree | |
5086 | find_omp_placeholder_r (tree *tp, int *, void *data) | |
5087 | { | |
5088 | if (*tp == (tree) data) | |
5089 | return *tp; | |
5090 | return NULL_TREE; | |
5091 | } | |
5092 | ||
5093 | /* Helper function of finish_omp_clauses. Handle OMP_CLAUSE_REDUCTION C. | |
5094 | Return true if there is some error and the clause should be removed. */ | |
5095 | ||
5096 | static bool | |
5097 | finish_omp_reduction_clause (tree c, bool *need_default_ctor, bool *need_dtor) | |
5098 | { | |
5099 | tree t = OMP_CLAUSE_DECL (c); | |
5100 | bool predefined = false; | |
5101 | tree type = TREE_TYPE (t); | |
5102 | if (TREE_CODE (type) == REFERENCE_TYPE) | |
5103 | type = TREE_TYPE (type); | |
4ca56230 PC |
5104 | if (type == error_mark_node) |
5105 | return true; | |
5106 | else if (ARITHMETIC_TYPE_P (type)) | |
acf0174b JJ |
5107 | switch (OMP_CLAUSE_REDUCTION_CODE (c)) |
5108 | { | |
5109 | case PLUS_EXPR: | |
5110 | case MULT_EXPR: | |
5111 | case MINUS_EXPR: | |
5112 | predefined = true; | |
5113 | break; | |
5114 | case MIN_EXPR: | |
5115 | case MAX_EXPR: | |
5116 | if (TREE_CODE (type) == COMPLEX_TYPE) | |
5117 | break; | |
5118 | predefined = true; | |
5119 | break; | |
5120 | case BIT_AND_EXPR: | |
5121 | case BIT_IOR_EXPR: | |
5122 | case BIT_XOR_EXPR: | |
652fea39 JJ |
5123 | if (FLOAT_TYPE_P (type) || TREE_CODE (type) == COMPLEX_TYPE) |
5124 | break; | |
5125 | predefined = true; | |
5126 | break; | |
acf0174b JJ |
5127 | case TRUTH_ANDIF_EXPR: |
5128 | case TRUTH_ORIF_EXPR: | |
5129 | if (FLOAT_TYPE_P (type)) | |
5130 | break; | |
5131 | predefined = true; | |
5132 | break; | |
5133 | default: | |
5134 | break; | |
5135 | } | |
5136 | else if (TREE_CODE (type) == ARRAY_TYPE || TYPE_READONLY (type)) | |
5137 | { | |
5138 | error ("%qE has invalid type for %<reduction%>", t); | |
5139 | return true; | |
5140 | } | |
5141 | else if (!processing_template_decl) | |
5142 | { | |
5143 | t = require_complete_type (t); | |
5144 | if (t == error_mark_node) | |
5145 | return true; | |
5146 | OMP_CLAUSE_DECL (c) = t; | |
5147 | } | |
5148 | ||
5149 | if (predefined) | |
5150 | { | |
5151 | OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) = NULL_TREE; | |
5152 | return false; | |
5153 | } | |
5154 | else if (processing_template_decl) | |
5155 | return false; | |
5156 | ||
5157 | tree id = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c); | |
5158 | ||
5159 | type = TYPE_MAIN_VARIANT (TREE_TYPE (t)); | |
5160 | if (TREE_CODE (type) == REFERENCE_TYPE) | |
5161 | type = TREE_TYPE (type); | |
5162 | OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) = NULL_TREE; | |
5163 | if (id == NULL_TREE) | |
5164 | id = omp_reduction_id (OMP_CLAUSE_REDUCTION_CODE (c), | |
5165 | NULL_TREE, NULL_TREE); | |
5166 | id = omp_reduction_lookup (OMP_CLAUSE_LOCATION (c), id, type, NULL, NULL); | |
5167 | if (id) | |
5168 | { | |
5169 | if (id == error_mark_node) | |
5170 | return true; | |
5171 | id = OVL_CURRENT (id); | |
5172 | mark_used (id); | |
5173 | tree body = DECL_SAVED_TREE (id); | |
88957d5e PC |
5174 | if (!body) |
5175 | return true; | |
acf0174b JJ |
5176 | if (TREE_CODE (body) == STATEMENT_LIST) |
5177 | { | |
5178 | tree_stmt_iterator tsi; | |
5179 | tree placeholder = NULL_TREE; | |
5180 | int i; | |
5181 | tree stmts[7]; | |
5182 | tree atype = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (id))); | |
5183 | atype = TREE_TYPE (atype); | |
5184 | bool need_static_cast = !same_type_p (type, atype); | |
5185 | memset (stmts, 0, sizeof stmts); | |
5186 | for (i = 0, tsi = tsi_start (body); | |
5187 | i < 7 && !tsi_end_p (tsi); | |
5188 | i++, tsi_next (&tsi)) | |
5189 | stmts[i] = tsi_stmt (tsi); | |
5190 | gcc_assert (tsi_end_p (tsi)); | |
5191 | ||
5192 | if (i >= 3) | |
5193 | { | |
5194 | gcc_assert (TREE_CODE (stmts[0]) == DECL_EXPR | |
5195 | && TREE_CODE (stmts[1]) == DECL_EXPR); | |
5196 | placeholder = build_lang_decl (VAR_DECL, NULL_TREE, type); | |
5197 | DECL_ARTIFICIAL (placeholder) = 1; | |
5198 | DECL_IGNORED_P (placeholder) = 1; | |
5199 | OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) = placeholder; | |
5200 | if (TREE_ADDRESSABLE (DECL_EXPR_DECL (stmts[0]))) | |
5201 | cxx_mark_addressable (placeholder); | |
5202 | if (TREE_ADDRESSABLE (DECL_EXPR_DECL (stmts[1])) | |
5203 | && TREE_CODE (TREE_TYPE (OMP_CLAUSE_DECL (c))) | |
5204 | != REFERENCE_TYPE) | |
5205 | cxx_mark_addressable (OMP_CLAUSE_DECL (c)); | |
5206 | tree omp_out = placeholder; | |
5207 | tree omp_in = convert_from_reference (OMP_CLAUSE_DECL (c)); | |
5208 | if (need_static_cast) | |
5209 | { | |
5210 | tree rtype = build_reference_type (atype); | |
5211 | omp_out = build_static_cast (rtype, omp_out, | |
5212 | tf_warning_or_error); | |
5213 | omp_in = build_static_cast (rtype, omp_in, | |
5214 | tf_warning_or_error); | |
5215 | if (omp_out == error_mark_node || omp_in == error_mark_node) | |
5216 | return true; | |
5217 | omp_out = convert_from_reference (omp_out); | |
5218 | omp_in = convert_from_reference (omp_in); | |
5219 | } | |
5220 | OMP_CLAUSE_REDUCTION_MERGE (c) | |
5221 | = clone_omp_udr (stmts[2], DECL_EXPR_DECL (stmts[0]), | |
5222 | DECL_EXPR_DECL (stmts[1]), omp_in, omp_out); | |
5223 | } | |
5224 | if (i >= 6) | |
5225 | { | |
5226 | gcc_assert (TREE_CODE (stmts[3]) == DECL_EXPR | |
5227 | && TREE_CODE (stmts[4]) == DECL_EXPR); | |
5228 | if (TREE_ADDRESSABLE (DECL_EXPR_DECL (stmts[3]))) | |
5229 | cxx_mark_addressable (OMP_CLAUSE_DECL (c)); | |
5230 | if (TREE_ADDRESSABLE (DECL_EXPR_DECL (stmts[4]))) | |
5231 | cxx_mark_addressable (placeholder); | |
5232 | tree omp_priv = convert_from_reference (OMP_CLAUSE_DECL (c)); | |
5233 | tree omp_orig = placeholder; | |
5234 | if (need_static_cast) | |
5235 | { | |
5236 | if (i == 7) | |
5237 | { | |
5238 | error_at (OMP_CLAUSE_LOCATION (c), | |
5239 | "user defined reduction with constructor " | |
5240 | "initializer for base class %qT", atype); | |
5241 | return true; | |
5242 | } | |
5243 | tree rtype = build_reference_type (atype); | |
5244 | omp_priv = build_static_cast (rtype, omp_priv, | |
5245 | tf_warning_or_error); | |
5246 | omp_orig = build_static_cast (rtype, omp_orig, | |
5247 | tf_warning_or_error); | |
5248 | if (omp_priv == error_mark_node | |
5249 | || omp_orig == error_mark_node) | |
5250 | return true; | |
5251 | omp_priv = convert_from_reference (omp_priv); | |
5252 | omp_orig = convert_from_reference (omp_orig); | |
5253 | } | |
5254 | if (i == 6) | |
5255 | *need_default_ctor = true; | |
5256 | OMP_CLAUSE_REDUCTION_INIT (c) | |
5257 | = clone_omp_udr (stmts[5], DECL_EXPR_DECL (stmts[4]), | |
5258 | DECL_EXPR_DECL (stmts[3]), | |
5259 | omp_priv, omp_orig); | |
5260 | if (cp_walk_tree (&OMP_CLAUSE_REDUCTION_INIT (c), | |
5261 | find_omp_placeholder_r, placeholder, NULL)) | |
5262 | OMP_CLAUSE_REDUCTION_OMP_ORIG_REF (c) = 1; | |
5263 | } | |
5264 | else if (i >= 3) | |
5265 | { | |
5266 | if (CLASS_TYPE_P (type) && !pod_type_p (type)) | |
5267 | *need_default_ctor = true; | |
5268 | else | |
5269 | { | |
5270 | tree init; | |
5271 | tree v = convert_from_reference (t); | |
5272 | if (AGGREGATE_TYPE_P (TREE_TYPE (v))) | |
5273 | init = build_constructor (TREE_TYPE (v), NULL); | |
5274 | else | |
5275 | init = fold_convert (TREE_TYPE (v), integer_zero_node); | |
5276 | OMP_CLAUSE_REDUCTION_INIT (c) | |
5277 | = build2 (INIT_EXPR, TREE_TYPE (v), v, init); | |
5278 | } | |
5279 | } | |
5280 | } | |
5281 | } | |
5282 | if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)) | |
5283 | *need_dtor = true; | |
5284 | else | |
5285 | { | |
5286 | error ("user defined reduction not found for %qD", t); | |
5287 | return true; | |
5288 | } | |
5289 | return false; | |
5290 | } | |
5291 | ||
1799e5d5 RH |
5292 | /* For all elements of CLAUSES, validate them vs OpenMP constraints. |
5293 | Remove any elements from the list that are invalid. */ | |
5294 | ||
5295 | tree | |
5296 | finish_omp_clauses (tree clauses) | |
5297 | { | |
5298 | bitmap_head generic_head, firstprivate_head, lastprivate_head; | |
acf0174b | 5299 | bitmap_head aligned_head; |
f3316c6d | 5300 | tree c, t, *pc; |
acf0174b JJ |
5301 | bool branch_seen = false; |
5302 | bool copyprivate_seen = false; | |
1799e5d5 RH |
5303 | |
5304 | bitmap_obstack_initialize (NULL); | |
5305 | bitmap_initialize (&generic_head, &bitmap_default_obstack); | |
5306 | bitmap_initialize (&firstprivate_head, &bitmap_default_obstack); | |
5307 | bitmap_initialize (&lastprivate_head, &bitmap_default_obstack); | |
acf0174b | 5308 | bitmap_initialize (&aligned_head, &bitmap_default_obstack); |
1799e5d5 RH |
5309 | |
5310 | for (pc = &clauses, c = clauses; c ; c = *pc) | |
5311 | { | |
5312 | bool remove = false; | |
5313 | ||
5314 | switch (OMP_CLAUSE_CODE (c)) | |
5315 | { | |
5316 | case OMP_CLAUSE_SHARED: | |
1799e5d5 RH |
5317 | goto check_dup_generic; |
5318 | case OMP_CLAUSE_PRIVATE: | |
1799e5d5 RH |
5319 | goto check_dup_generic; |
5320 | case OMP_CLAUSE_REDUCTION: | |
1799e5d5 RH |
5321 | goto check_dup_generic; |
5322 | case OMP_CLAUSE_COPYPRIVATE: | |
acf0174b | 5323 | copyprivate_seen = true; |
1799e5d5 RH |
5324 | goto check_dup_generic; |
5325 | case OMP_CLAUSE_COPYIN: | |
acf0174b JJ |
5326 | goto check_dup_generic; |
5327 | case OMP_CLAUSE_LINEAR: | |
5328 | t = OMP_CLAUSE_DECL (c); | |
5329 | if (!type_dependent_expression_p (t) | |
5330 | && !INTEGRAL_TYPE_P (TREE_TYPE (t)) | |
5331 | && TREE_CODE (TREE_TYPE (t)) != POINTER_TYPE) | |
5332 | { | |
5333 | error ("linear clause applied to non-integral non-pointer " | |
5334 | "variable with %qT type", TREE_TYPE (t)); | |
5335 | remove = true; | |
5336 | break; | |
5337 | } | |
5338 | t = OMP_CLAUSE_LINEAR_STEP (c); | |
5339 | if (t == NULL_TREE) | |
5340 | t = integer_one_node; | |
5341 | if (t == error_mark_node) | |
ee1d5a02 JJ |
5342 | { |
5343 | remove = true; | |
5344 | break; | |
5345 | } | |
acf0174b JJ |
5346 | else if (!type_dependent_expression_p (t) |
5347 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
5348 | { | |
5349 | error ("linear step expression must be integral"); | |
5350 | remove = true; | |
ee1d5a02 | 5351 | break; |
acf0174b JJ |
5352 | } |
5353 | else | |
5354 | { | |
5355 | t = mark_rvalue_use (t); | |
5356 | if (!processing_template_decl) | |
5357 | { | |
0136f8f0 AH |
5358 | if (TREE_CODE (OMP_CLAUSE_DECL (c)) == PARM_DECL) |
5359 | t = maybe_constant_value (t); | |
acf0174b JJ |
5360 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); |
5361 | if (TREE_CODE (TREE_TYPE (OMP_CLAUSE_DECL (c))) | |
5362 | == POINTER_TYPE) | |
5363 | { | |
5364 | t = pointer_int_sum (OMP_CLAUSE_LOCATION (c), PLUS_EXPR, | |
5365 | OMP_CLAUSE_DECL (c), t); | |
5366 | t = fold_build2_loc (OMP_CLAUSE_LOCATION (c), | |
5367 | MINUS_EXPR, sizetype, t, | |
5368 | OMP_CLAUSE_DECL (c)); | |
5369 | if (t == error_mark_node) | |
ee1d5a02 JJ |
5370 | { |
5371 | remove = true; | |
5372 | break; | |
5373 | } | |
acf0174b | 5374 | } |
da6f124d JJ |
5375 | else |
5376 | t = fold_convert (TREE_TYPE (OMP_CLAUSE_DECL (c)), t); | |
acf0174b JJ |
5377 | } |
5378 | OMP_CLAUSE_LINEAR_STEP (c) = t; | |
5379 | } | |
1799e5d5 RH |
5380 | goto check_dup_generic; |
5381 | check_dup_generic: | |
5382 | t = OMP_CLAUSE_DECL (c); | |
5a6ccc94 | 5383 | if (!VAR_P (t) && TREE_CODE (t) != PARM_DECL) |
1799e5d5 RH |
5384 | { |
5385 | if (processing_template_decl) | |
5386 | break; | |
76dc15d4 | 5387 | if (DECL_P (t)) |
acf0174b JJ |
5388 | error ("%qD is not a variable in clause %qs", t, |
5389 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
76dc15d4 | 5390 | else |
acf0174b JJ |
5391 | error ("%qE is not a variable in clause %qs", t, |
5392 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
1799e5d5 RH |
5393 | remove = true; |
5394 | } | |
5395 | else if (bitmap_bit_p (&generic_head, DECL_UID (t)) | |
5396 | || bitmap_bit_p (&firstprivate_head, DECL_UID (t)) | |
5397 | || bitmap_bit_p (&lastprivate_head, DECL_UID (t))) | |
5398 | { | |
76dc15d4 | 5399 | error ("%qD appears more than once in data clauses", t); |
1799e5d5 RH |
5400 | remove = true; |
5401 | } | |
5402 | else | |
5403 | bitmap_set_bit (&generic_head, DECL_UID (t)); | |
5404 | break; | |
5405 | ||
5406 | case OMP_CLAUSE_FIRSTPRIVATE: | |
5407 | t = OMP_CLAUSE_DECL (c); | |
5a6ccc94 | 5408 | if (!VAR_P (t) && TREE_CODE (t) != PARM_DECL) |
1799e5d5 RH |
5409 | { |
5410 | if (processing_template_decl) | |
5411 | break; | |
85b20612 JJ |
5412 | if (DECL_P (t)) |
5413 | error ("%qD is not a variable in clause %<firstprivate%>", t); | |
5414 | else | |
5415 | error ("%qE is not a variable in clause %<firstprivate%>", t); | |
1799e5d5 RH |
5416 | remove = true; |
5417 | } | |
5418 | else if (bitmap_bit_p (&generic_head, DECL_UID (t)) | |
5419 | || bitmap_bit_p (&firstprivate_head, DECL_UID (t))) | |
5420 | { | |
85b20612 | 5421 | error ("%qD appears more than once in data clauses", t); |
1799e5d5 RH |
5422 | remove = true; |
5423 | } | |
5424 | else | |
5425 | bitmap_set_bit (&firstprivate_head, DECL_UID (t)); | |
5426 | break; | |
5427 | ||
5428 | case OMP_CLAUSE_LASTPRIVATE: | |
5429 | t = OMP_CLAUSE_DECL (c); | |
5a6ccc94 | 5430 | if (!VAR_P (t) && TREE_CODE (t) != PARM_DECL) |
1799e5d5 RH |
5431 | { |
5432 | if (processing_template_decl) | |
5433 | break; | |
85b20612 JJ |
5434 | if (DECL_P (t)) |
5435 | error ("%qD is not a variable in clause %<lastprivate%>", t); | |
5436 | else | |
5437 | error ("%qE is not a variable in clause %<lastprivate%>", t); | |
1799e5d5 RH |
5438 | remove = true; |
5439 | } | |
5440 | else if (bitmap_bit_p (&generic_head, DECL_UID (t)) | |
5441 | || bitmap_bit_p (&lastprivate_head, DECL_UID (t))) | |
5442 | { | |
85b20612 | 5443 | error ("%qD appears more than once in data clauses", t); |
1799e5d5 RH |
5444 | remove = true; |
5445 | } | |
5446 | else | |
5447 | bitmap_set_bit (&lastprivate_head, DECL_UID (t)); | |
5448 | break; | |
5449 | ||
5450 | case OMP_CLAUSE_IF: | |
5451 | t = OMP_CLAUSE_IF_EXPR (c); | |
5452 | t = maybe_convert_cond (t); | |
5453 | if (t == error_mark_node) | |
5454 | remove = true; | |
b848354b JJ |
5455 | else if (!processing_template_decl) |
5456 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
1799e5d5 RH |
5457 | OMP_CLAUSE_IF_EXPR (c) = t; |
5458 | break; | |
5459 | ||
20906c66 JJ |
5460 | case OMP_CLAUSE_FINAL: |
5461 | t = OMP_CLAUSE_FINAL_EXPR (c); | |
5462 | t = maybe_convert_cond (t); | |
5463 | if (t == error_mark_node) | |
5464 | remove = true; | |
b848354b JJ |
5465 | else if (!processing_template_decl) |
5466 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
20906c66 JJ |
5467 | OMP_CLAUSE_FINAL_EXPR (c) = t; |
5468 | break; | |
5469 | ||
1799e5d5 RH |
5470 | case OMP_CLAUSE_NUM_THREADS: |
5471 | t = OMP_CLAUSE_NUM_THREADS_EXPR (c); | |
5472 | if (t == error_mark_node) | |
5473 | remove = true; | |
6e684eee JJ |
5474 | else if (!type_dependent_expression_p (t) |
5475 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
1799e5d5 RH |
5476 | { |
5477 | error ("num_threads expression must be integral"); | |
5478 | remove = true; | |
5479 | } | |
7d1362bc | 5480 | else |
b848354b JJ |
5481 | { |
5482 | t = mark_rvalue_use (t); | |
5483 | if (!processing_template_decl) | |
5484 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
5485 | OMP_CLAUSE_NUM_THREADS_EXPR (c) = t; | |
5486 | } | |
1799e5d5 RH |
5487 | break; |
5488 | ||
5489 | case OMP_CLAUSE_SCHEDULE: | |
5490 | t = OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (c); | |
5491 | if (t == NULL) | |
5492 | ; | |
5493 | else if (t == error_mark_node) | |
5494 | remove = true; | |
6e684eee | 5495 | else if (!type_dependent_expression_p (t) |
9a771876 JJ |
5496 | && (OMP_CLAUSE_SCHEDULE_KIND (c) |
5497 | != OMP_CLAUSE_SCHEDULE_CILKFOR) | |
6e684eee | 5498 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) |
1799e5d5 RH |
5499 | { |
5500 | error ("schedule chunk size expression must be integral"); | |
5501 | remove = true; | |
5502 | } | |
7d1362bc | 5503 | else |
b848354b JJ |
5504 | { |
5505 | t = mark_rvalue_use (t); | |
5506 | if (!processing_template_decl) | |
9a771876 JJ |
5507 | { |
5508 | if (OMP_CLAUSE_SCHEDULE_KIND (c) | |
5509 | == OMP_CLAUSE_SCHEDULE_CILKFOR) | |
5510 | { | |
5511 | t = convert_to_integer (long_integer_type_node, t); | |
5512 | if (t == error_mark_node) | |
5513 | { | |
5514 | remove = true; | |
5515 | break; | |
5516 | } | |
5517 | } | |
5518 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
5519 | } | |
b848354b JJ |
5520 | OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (c) = t; |
5521 | } | |
1799e5d5 RH |
5522 | break; |
5523 | ||
acf0174b JJ |
5524 | case OMP_CLAUSE_SIMDLEN: |
5525 | case OMP_CLAUSE_SAFELEN: | |
5526 | t = OMP_CLAUSE_OPERAND (c, 0); | |
5527 | if (t == error_mark_node) | |
5528 | remove = true; | |
5529 | else if (!type_dependent_expression_p (t) | |
5530 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
5531 | { | |
5532 | error ("%qs length expression must be integral", | |
5533 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
5534 | remove = true; | |
5535 | } | |
5536 | else | |
5537 | { | |
5538 | t = mark_rvalue_use (t); | |
5539 | t = maybe_constant_value (t); | |
5540 | if (!processing_template_decl) | |
5541 | { | |
5542 | if (TREE_CODE (t) != INTEGER_CST | |
5543 | || tree_int_cst_sgn (t) != 1) | |
5544 | { | |
5545 | error ("%qs length expression must be positive constant" | |
5546 | " integer expression", | |
5547 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
5548 | remove = true; | |
5549 | } | |
5550 | } | |
5551 | OMP_CLAUSE_OPERAND (c, 0) = t; | |
5552 | } | |
5553 | break; | |
5554 | ||
5555 | case OMP_CLAUSE_NUM_TEAMS: | |
5556 | t = OMP_CLAUSE_NUM_TEAMS_EXPR (c); | |
5557 | if (t == error_mark_node) | |
5558 | remove = true; | |
5559 | else if (!type_dependent_expression_p (t) | |
5560 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
5561 | { | |
5562 | error ("%<num_teams%> expression must be integral"); | |
5563 | remove = true; | |
5564 | } | |
5565 | else | |
5566 | { | |
5567 | t = mark_rvalue_use (t); | |
5568 | if (!processing_template_decl) | |
5569 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
5570 | OMP_CLAUSE_NUM_TEAMS_EXPR (c) = t; | |
5571 | } | |
5572 | break; | |
5573 | ||
5574 | case OMP_CLAUSE_THREAD_LIMIT: | |
5575 | t = OMP_CLAUSE_THREAD_LIMIT_EXPR (c); | |
5576 | if (t == error_mark_node) | |
5577 | remove = true; | |
5578 | else if (!type_dependent_expression_p (t) | |
5579 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
5580 | { | |
5581 | error ("%<thread_limit%> expression must be integral"); | |
5582 | remove = true; | |
5583 | } | |
5584 | else | |
5585 | { | |
5586 | t = mark_rvalue_use (t); | |
5587 | if (!processing_template_decl) | |
5588 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
5589 | OMP_CLAUSE_THREAD_LIMIT_EXPR (c) = t; | |
5590 | } | |
5591 | break; | |
5592 | ||
5593 | case OMP_CLAUSE_DEVICE: | |
5594 | t = OMP_CLAUSE_DEVICE_ID (c); | |
5595 | if (t == error_mark_node) | |
5596 | remove = true; | |
5597 | else if (!type_dependent_expression_p (t) | |
5598 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
5599 | { | |
5600 | error ("%<device%> id must be integral"); | |
5601 | remove = true; | |
5602 | } | |
5603 | else | |
5604 | { | |
5605 | t = mark_rvalue_use (t); | |
5606 | if (!processing_template_decl) | |
5607 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
5608 | OMP_CLAUSE_DEVICE_ID (c) = t; | |
5609 | } | |
5610 | break; | |
5611 | ||
5612 | case OMP_CLAUSE_DIST_SCHEDULE: | |
5613 | t = OMP_CLAUSE_DIST_SCHEDULE_CHUNK_EXPR (c); | |
5614 | if (t == NULL) | |
5615 | ; | |
5616 | else if (t == error_mark_node) | |
5617 | remove = true; | |
5618 | else if (!type_dependent_expression_p (t) | |
5619 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
5620 | { | |
5621 | error ("%<dist_schedule%> chunk size expression must be " | |
5622 | "integral"); | |
5623 | remove = true; | |
5624 | } | |
5625 | else | |
5626 | { | |
5627 | t = mark_rvalue_use (t); | |
5628 | if (!processing_template_decl) | |
5629 | t = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
5630 | OMP_CLAUSE_DIST_SCHEDULE_CHUNK_EXPR (c) = t; | |
5631 | } | |
5632 | break; | |
5633 | ||
5634 | case OMP_CLAUSE_ALIGNED: | |
5635 | t = OMP_CLAUSE_DECL (c); | |
5636 | if (TREE_CODE (t) != VAR_DECL && TREE_CODE (t) != PARM_DECL) | |
5637 | { | |
5638 | if (processing_template_decl) | |
5639 | break; | |
5640 | if (DECL_P (t)) | |
5641 | error ("%qD is not a variable in %<aligned%> clause", t); | |
5642 | else | |
5643 | error ("%qE is not a variable in %<aligned%> clause", t); | |
5644 | remove = true; | |
5645 | } | |
5a9785fb JJ |
5646 | else if (!type_dependent_expression_p (t) |
5647 | && TREE_CODE (TREE_TYPE (t)) != POINTER_TYPE | |
5648 | && TREE_CODE (TREE_TYPE (t)) != ARRAY_TYPE | |
5649 | && (TREE_CODE (TREE_TYPE (t)) != REFERENCE_TYPE | |
5650 | || (!POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (t))) | |
5651 | && (TREE_CODE (TREE_TYPE (TREE_TYPE (t))) | |
5652 | != ARRAY_TYPE)))) | |
5653 | { | |
5654 | error_at (OMP_CLAUSE_LOCATION (c), | |
5655 | "%qE in %<aligned%> clause is neither a pointer nor " | |
5656 | "an array nor a reference to pointer or array", t); | |
5657 | remove = true; | |
5658 | } | |
acf0174b JJ |
5659 | else if (bitmap_bit_p (&aligned_head, DECL_UID (t))) |
5660 | { | |
5661 | error ("%qD appears more than once in %<aligned%> clauses", t); | |
5662 | remove = true; | |
5663 | } | |
5664 | else | |
5665 | bitmap_set_bit (&aligned_head, DECL_UID (t)); | |
5666 | t = OMP_CLAUSE_ALIGNED_ALIGNMENT (c); | |
5667 | if (t == error_mark_node) | |
5668 | remove = true; | |
5669 | else if (t == NULL_TREE) | |
5670 | break; | |
5671 | else if (!type_dependent_expression_p (t) | |
5672 | && !INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
5673 | { | |
5674 | error ("%<aligned%> clause alignment expression must " | |
5675 | "be integral"); | |
5676 | remove = true; | |
5677 | } | |
5678 | else | |
5679 | { | |
5680 | t = mark_rvalue_use (t); | |
5681 | t = maybe_constant_value (t); | |
5682 | if (!processing_template_decl) | |
5683 | { | |
5684 | if (TREE_CODE (t) != INTEGER_CST | |
5685 | || tree_int_cst_sgn (t) != 1) | |
5686 | { | |
5687 | error ("%<aligned%> clause alignment expression must be " | |
5688 | "positive constant integer expression"); | |
5689 | remove = true; | |
5690 | } | |
5691 | } | |
5692 | OMP_CLAUSE_ALIGNED_ALIGNMENT (c) = t; | |
5693 | } | |
5694 | break; | |
5695 | ||
5696 | case OMP_CLAUSE_DEPEND: | |
5697 | t = OMP_CLAUSE_DECL (c); | |
5698 | if (TREE_CODE (t) == TREE_LIST) | |
5699 | { | |
5700 | if (handle_omp_array_sections (c)) | |
5701 | remove = true; | |
5702 | break; | |
5703 | } | |
5704 | if (t == error_mark_node) | |
5705 | remove = true; | |
5706 | else if (TREE_CODE (t) != VAR_DECL && TREE_CODE (t) != PARM_DECL) | |
5707 | { | |
5708 | if (processing_template_decl) | |
5709 | break; | |
5710 | if (DECL_P (t)) | |
5711 | error ("%qD is not a variable in %<depend%> clause", t); | |
5712 | else | |
5713 | error ("%qE is not a variable in %<depend%> clause", t); | |
5714 | remove = true; | |
5715 | } | |
5716 | else if (!processing_template_decl | |
5717 | && !cxx_mark_addressable (t)) | |
5718 | remove = true; | |
5719 | break; | |
5720 | ||
5721 | case OMP_CLAUSE_MAP: | |
5722 | case OMP_CLAUSE_TO: | |
5723 | case OMP_CLAUSE_FROM: | |
5724 | t = OMP_CLAUSE_DECL (c); | |
5725 | if (TREE_CODE (t) == TREE_LIST) | |
5726 | { | |
5727 | if (handle_omp_array_sections (c)) | |
5728 | remove = true; | |
5729 | else | |
5730 | { | |
5731 | t = OMP_CLAUSE_DECL (c); | |
bce16b88 JJ |
5732 | if (TREE_CODE (t) != TREE_LIST |
5733 | && !type_dependent_expression_p (t) | |
5734 | && !cp_omp_mappable_type (TREE_TYPE (t))) | |
acf0174b JJ |
5735 | { |
5736 | error_at (OMP_CLAUSE_LOCATION (c), | |
5737 | "array section does not have mappable type " | |
5738 | "in %qs clause", | |
5739 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
5740 | remove = true; | |
5741 | } | |
5742 | } | |
5743 | break; | |
5744 | } | |
5745 | if (t == error_mark_node) | |
5746 | remove = true; | |
5747 | else if (TREE_CODE (t) != VAR_DECL && TREE_CODE (t) != PARM_DECL) | |
5748 | { | |
5749 | if (processing_template_decl) | |
5750 | break; | |
5751 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP | |
5752 | && OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_POINTER) | |
5753 | break; | |
5754 | if (DECL_P (t)) | |
5755 | error ("%qD is not a variable in %qs clause", t, | |
5756 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
5757 | else | |
5758 | error ("%qE is not a variable in %qs clause", t, | |
5759 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
5760 | remove = true; | |
5761 | } | |
5762 | else if (TREE_CODE (t) == VAR_DECL && DECL_THREAD_LOCAL_P (t)) | |
5763 | { | |
5764 | error ("%qD is threadprivate variable in %qs clause", t, | |
5765 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
5766 | remove = true; | |
5767 | } | |
5768 | else if (!processing_template_decl | |
5769 | && TREE_CODE (TREE_TYPE (t)) != REFERENCE_TYPE | |
5770 | && !cxx_mark_addressable (t)) | |
5771 | remove = true; | |
5772 | else if (!(OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP | |
5773 | && OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_POINTER) | |
bce16b88 | 5774 | && !type_dependent_expression_p (t) |
acf0174b JJ |
5775 | && !cp_omp_mappable_type ((TREE_CODE (TREE_TYPE (t)) |
5776 | == REFERENCE_TYPE) | |
5777 | ? TREE_TYPE (TREE_TYPE (t)) | |
5778 | : TREE_TYPE (t))) | |
5779 | { | |
5780 | error_at (OMP_CLAUSE_LOCATION (c), | |
5781 | "%qD does not have a mappable type in %qs clause", t, | |
5782 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
5783 | remove = true; | |
5784 | } | |
5785 | else if (bitmap_bit_p (&generic_head, DECL_UID (t))) | |
5786 | { | |
5787 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_MAP) | |
5788 | error ("%qD appears more than once in motion clauses", t); | |
5789 | else | |
5790 | error ("%qD appears more than once in map clauses", t); | |
5791 | remove = true; | |
5792 | } | |
5793 | else | |
5794 | bitmap_set_bit (&generic_head, DECL_UID (t)); | |
5795 | break; | |
5796 | ||
5797 | case OMP_CLAUSE_UNIFORM: | |
5798 | t = OMP_CLAUSE_DECL (c); | |
5799 | if (TREE_CODE (t) != PARM_DECL) | |
5800 | { | |
5801 | if (processing_template_decl) | |
5802 | break; | |
5803 | if (DECL_P (t)) | |
5804 | error ("%qD is not an argument in %<uniform%> clause", t); | |
5805 | else | |
5806 | error ("%qE is not an argument in %<uniform%> clause", t); | |
5807 | remove = true; | |
ee1d5a02 | 5808 | break; |
acf0174b | 5809 | } |
ee1d5a02 | 5810 | goto check_dup_generic; |
acf0174b | 5811 | |
1799e5d5 RH |
5812 | case OMP_CLAUSE_NOWAIT: |
5813 | case OMP_CLAUSE_ORDERED: | |
5814 | case OMP_CLAUSE_DEFAULT: | |
a68ab351 JJ |
5815 | case OMP_CLAUSE_UNTIED: |
5816 | case OMP_CLAUSE_COLLAPSE: | |
20906c66 | 5817 | case OMP_CLAUSE_MERGEABLE: |
acf0174b JJ |
5818 | case OMP_CLAUSE_PARALLEL: |
5819 | case OMP_CLAUSE_FOR: | |
5820 | case OMP_CLAUSE_SECTIONS: | |
5821 | case OMP_CLAUSE_TASKGROUP: | |
5822 | case OMP_CLAUSE_PROC_BIND: | |
9a771876 | 5823 | case OMP_CLAUSE__CILK_FOR_COUNT_: |
acf0174b JJ |
5824 | break; |
5825 | ||
5826 | case OMP_CLAUSE_INBRANCH: | |
5827 | case OMP_CLAUSE_NOTINBRANCH: | |
5828 | if (branch_seen) | |
5829 | { | |
5830 | error ("%<inbranch%> clause is incompatible with " | |
5831 | "%<notinbranch%>"); | |
5832 | remove = true; | |
5833 | } | |
5834 | branch_seen = true; | |
1799e5d5 RH |
5835 | break; |
5836 | ||
5837 | default: | |
5838 | gcc_unreachable (); | |
5839 | } | |
5840 | ||
5841 | if (remove) | |
5842 | *pc = OMP_CLAUSE_CHAIN (c); | |
5843 | else | |
5844 | pc = &OMP_CLAUSE_CHAIN (c); | |
5845 | } | |
5846 | ||
5847 | for (pc = &clauses, c = clauses; c ; c = *pc) | |
5848 | { | |
81f40b79 | 5849 | enum omp_clause_code c_kind = OMP_CLAUSE_CODE (c); |
1799e5d5 RH |
5850 | bool remove = false; |
5851 | bool need_complete_non_reference = false; | |
5852 | bool need_default_ctor = false; | |
5853 | bool need_copy_ctor = false; | |
5854 | bool need_copy_assignment = false; | |
5855 | bool need_implicitly_determined = false; | |
acf0174b | 5856 | bool need_dtor = false; |
1799e5d5 RH |
5857 | tree type, inner_type; |
5858 | ||
5859 | switch (c_kind) | |
5860 | { | |
5861 | case OMP_CLAUSE_SHARED: | |
1799e5d5 RH |
5862 | need_implicitly_determined = true; |
5863 | break; | |
5864 | case OMP_CLAUSE_PRIVATE: | |
1799e5d5 RH |
5865 | need_complete_non_reference = true; |
5866 | need_default_ctor = true; | |
acf0174b | 5867 | need_dtor = true; |
1799e5d5 RH |
5868 | need_implicitly_determined = true; |
5869 | break; | |
5870 | case OMP_CLAUSE_FIRSTPRIVATE: | |
1799e5d5 RH |
5871 | need_complete_non_reference = true; |
5872 | need_copy_ctor = true; | |
acf0174b | 5873 | need_dtor = true; |
1799e5d5 RH |
5874 | need_implicitly_determined = true; |
5875 | break; | |
5876 | case OMP_CLAUSE_LASTPRIVATE: | |
1799e5d5 RH |
5877 | need_complete_non_reference = true; |
5878 | need_copy_assignment = true; | |
5879 | need_implicitly_determined = true; | |
5880 | break; | |
5881 | case OMP_CLAUSE_REDUCTION: | |
1799e5d5 RH |
5882 | need_implicitly_determined = true; |
5883 | break; | |
5884 | case OMP_CLAUSE_COPYPRIVATE: | |
1799e5d5 RH |
5885 | need_copy_assignment = true; |
5886 | break; | |
5887 | case OMP_CLAUSE_COPYIN: | |
1799e5d5 RH |
5888 | need_copy_assignment = true; |
5889 | break; | |
acf0174b JJ |
5890 | case OMP_CLAUSE_NOWAIT: |
5891 | if (copyprivate_seen) | |
5892 | { | |
5893 | error_at (OMP_CLAUSE_LOCATION (c), | |
5894 | "%<nowait%> clause must not be used together " | |
5895 | "with %<copyprivate%>"); | |
5896 | *pc = OMP_CLAUSE_CHAIN (c); | |
5897 | continue; | |
5898 | } | |
5899 | /* FALLTHRU */ | |
1799e5d5 RH |
5900 | default: |
5901 | pc = &OMP_CLAUSE_CHAIN (c); | |
5902 | continue; | |
5903 | } | |
5904 | ||
5905 | t = OMP_CLAUSE_DECL (c); | |
5906 | if (processing_template_decl | |
5a6ccc94 | 5907 | && !VAR_P (t) && TREE_CODE (t) != PARM_DECL) |
1799e5d5 RH |
5908 | { |
5909 | pc = &OMP_CLAUSE_CHAIN (c); | |
5910 | continue; | |
5911 | } | |
5912 | ||
5913 | switch (c_kind) | |
5914 | { | |
5915 | case OMP_CLAUSE_LASTPRIVATE: | |
5916 | if (!bitmap_bit_p (&firstprivate_head, DECL_UID (t))) | |
acf0174b JJ |
5917 | { |
5918 | need_default_ctor = true; | |
5919 | need_dtor = true; | |
5920 | } | |
1799e5d5 RH |
5921 | break; |
5922 | ||
5923 | case OMP_CLAUSE_REDUCTION: | |
acf0174b JJ |
5924 | if (finish_omp_reduction_clause (c, &need_default_ctor, |
5925 | &need_dtor)) | |
5926 | remove = true; | |
5927 | else | |
5928 | t = OMP_CLAUSE_DECL (c); | |
1799e5d5 RH |
5929 | break; |
5930 | ||
5931 | case OMP_CLAUSE_COPYIN: | |
5a6ccc94 | 5932 | if (!VAR_P (t) || !DECL_THREAD_LOCAL_P (t)) |
1799e5d5 RH |
5933 | { |
5934 | error ("%qE must be %<threadprivate%> for %<copyin%>", t); | |
5935 | remove = true; | |
5936 | } | |
5937 | break; | |
5938 | ||
5939 | default: | |
5940 | break; | |
5941 | } | |
5942 | ||
8a8c12a3 | 5943 | if (need_complete_non_reference || need_copy_assignment) |
1799e5d5 RH |
5944 | { |
5945 | t = require_complete_type (t); | |
5946 | if (t == error_mark_node) | |
5947 | remove = true; | |
8a8c12a3 JJ |
5948 | else if (TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE |
5949 | && need_complete_non_reference) | |
1799e5d5 | 5950 | { |
acf0174b JJ |
5951 | error ("%qE has reference type for %qs", t, |
5952 | omp_clause_code_name[OMP_CLAUSE_CODE (c)]); | |
1799e5d5 RH |
5953 | remove = true; |
5954 | } | |
5955 | } | |
5956 | if (need_implicitly_determined) | |
5957 | { | |
5958 | const char *share_name = NULL; | |
5959 | ||
5a6ccc94 | 5960 | if (VAR_P (t) && DECL_THREAD_LOCAL_P (t)) |
1799e5d5 RH |
5961 | share_name = "threadprivate"; |
5962 | else switch (cxx_omp_predetermined_sharing (t)) | |
5963 | { | |
5964 | case OMP_CLAUSE_DEFAULT_UNSPECIFIED: | |
5965 | break; | |
5966 | case OMP_CLAUSE_DEFAULT_SHARED: | |
20906c66 JJ |
5967 | /* const vars may be specified in firstprivate clause. */ |
5968 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE | |
5969 | && cxx_omp_const_qual_no_mutable (t)) | |
5970 | break; | |
1799e5d5 RH |
5971 | share_name = "shared"; |
5972 | break; | |
5973 | case OMP_CLAUSE_DEFAULT_PRIVATE: | |
5974 | share_name = "private"; | |
5975 | break; | |
5976 | default: | |
5977 | gcc_unreachable (); | |
5978 | } | |
5979 | if (share_name) | |
5980 | { | |
5981 | error ("%qE is predetermined %qs for %qs", | |
acf0174b | 5982 | t, share_name, omp_clause_code_name[OMP_CLAUSE_CODE (c)]); |
1799e5d5 RH |
5983 | remove = true; |
5984 | } | |
5985 | } | |
5986 | ||
5987 | /* We're interested in the base element, not arrays. */ | |
5988 | inner_type = type = TREE_TYPE (t); | |
5989 | while (TREE_CODE (inner_type) == ARRAY_TYPE) | |
5990 | inner_type = TREE_TYPE (inner_type); | |
5991 | ||
acf0174b JJ |
5992 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_REDUCTION |
5993 | && TREE_CODE (inner_type) == REFERENCE_TYPE) | |
5994 | inner_type = TREE_TYPE (inner_type); | |
5995 | ||
84dc00e8 | 5996 | /* Check for special function availability by building a call to one. |
1799e5d5 RH |
5997 | Save the results, because later we won't be in the right context |
5998 | for making these queries. */ | |
5999 | if (CLASS_TYPE_P (inner_type) | |
8a8c12a3 | 6000 | && COMPLETE_TYPE_P (inner_type) |
acf0174b JJ |
6001 | && (need_default_ctor || need_copy_ctor |
6002 | || need_copy_assignment || need_dtor) | |
a68ab351 JJ |
6003 | && !type_dependent_expression_p (t) |
6004 | && cxx_omp_create_clause_info (c, inner_type, need_default_ctor, | |
acf0174b JJ |
6005 | need_copy_ctor, need_copy_assignment, |
6006 | need_dtor)) | |
a68ab351 | 6007 | remove = true; |
1799e5d5 RH |
6008 | |
6009 | if (remove) | |
6010 | *pc = OMP_CLAUSE_CHAIN (c); | |
6011 | else | |
6012 | pc = &OMP_CLAUSE_CHAIN (c); | |
6013 | } | |
6014 | ||
6015 | bitmap_obstack_release (NULL); | |
6016 | return clauses; | |
6017 | } | |
6018 | ||
6019 | /* For all variables in the tree_list VARS, mark them as thread local. */ | |
6020 | ||
6021 | void | |
6022 | finish_omp_threadprivate (tree vars) | |
6023 | { | |
6024 | tree t; | |
6025 | ||
6026 | /* Mark every variable in VARS to be assigned thread local storage. */ | |
6027 | for (t = vars; t; t = TREE_CHAIN (t)) | |
6028 | { | |
6029 | tree v = TREE_PURPOSE (t); | |
6030 | ||
edb6000e JJ |
6031 | if (error_operand_p (v)) |
6032 | ; | |
5a6ccc94 | 6033 | else if (!VAR_P (v)) |
edb6000e JJ |
6034 | error ("%<threadprivate%> %qD is not file, namespace " |
6035 | "or block scope variable", v); | |
1799e5d5 RH |
6036 | /* If V had already been marked threadprivate, it doesn't matter |
6037 | whether it had been used prior to this point. */ | |
edb6000e | 6038 | else if (TREE_USED (v) |
1799e5d5 RH |
6039 | && (DECL_LANG_SPECIFIC (v) == NULL |
6040 | || !CP_DECL_THREADPRIVATE_P (v))) | |
6041 | error ("%qE declared %<threadprivate%> after first use", v); | |
6042 | else if (! TREE_STATIC (v) && ! DECL_EXTERNAL (v)) | |
6043 | error ("automatic variable %qE cannot be %<threadprivate%>", v); | |
57c3feb4 | 6044 | else if (! COMPLETE_TYPE_P (complete_type (TREE_TYPE (v)))) |
1799e5d5 | 6045 | error ("%<threadprivate%> %qE has incomplete type", v); |
a68ab351 JJ |
6046 | else if (TREE_STATIC (v) && TYPE_P (CP_DECL_CONTEXT (v)) |
6047 | && CP_DECL_CONTEXT (v) != current_class_type) | |
6048 | error ("%<threadprivate%> %qE directive not " | |
6049 | "in %qT definition", v, CP_DECL_CONTEXT (v)); | |
1799e5d5 RH |
6050 | else |
6051 | { | |
6052 | /* Allocate a LANG_SPECIFIC structure for V, if needed. */ | |
6053 | if (DECL_LANG_SPECIFIC (v) == NULL) | |
6054 | { | |
6055 | retrofit_lang_decl (v); | |
6056 | ||
6057 | /* Make sure that DECL_DISCRIMINATOR_P continues to be true | |
6058 | after the allocation of the lang_decl structure. */ | |
6059 | if (DECL_DISCRIMINATOR_P (v)) | |
b97e8a14 | 6060 | DECL_LANG_SPECIFIC (v)->u.base.u2sel = 1; |
1799e5d5 RH |
6061 | } |
6062 | ||
6063 | if (! DECL_THREAD_LOCAL_P (v)) | |
6064 | { | |
56363ffd | 6065 | set_decl_tls_model (v, decl_default_tls_model (v)); |
1799e5d5 RH |
6066 | /* If rtl has been already set for this var, call |
6067 | make_decl_rtl once again, so that encode_section_info | |
6068 | has a chance to look at the new decl flags. */ | |
6069 | if (DECL_RTL_SET_P (v)) | |
6070 | make_decl_rtl (v); | |
6071 | } | |
6072 | CP_DECL_THREADPRIVATE_P (v) = 1; | |
6073 | } | |
6074 | } | |
6075 | } | |
6076 | ||
6077 | /* Build an OpenMP structured block. */ | |
6078 | ||
6079 | tree | |
6080 | begin_omp_structured_block (void) | |
6081 | { | |
6082 | return do_pushlevel (sk_omp); | |
6083 | } | |
6084 | ||
6085 | tree | |
6086 | finish_omp_structured_block (tree block) | |
6087 | { | |
6088 | return do_poplevel (block); | |
6089 | } | |
6090 | ||
84dc00e8 | 6091 | /* Similarly, except force the retention of the BLOCK. */ |
1799e5d5 RH |
6092 | |
6093 | tree | |
6094 | begin_omp_parallel (void) | |
6095 | { | |
6096 | keep_next_level (true); | |
6097 | return begin_omp_structured_block (); | |
6098 | } | |
6099 | ||
6100 | tree | |
6101 | finish_omp_parallel (tree clauses, tree body) | |
6102 | { | |
6103 | tree stmt; | |
6104 | ||
6105 | body = finish_omp_structured_block (body); | |
b850de4f | 6106 | |
1799e5d5 RH |
6107 | stmt = make_node (OMP_PARALLEL); |
6108 | TREE_TYPE (stmt) = void_type_node; | |
6109 | OMP_PARALLEL_CLAUSES (stmt) = clauses; | |
6110 | OMP_PARALLEL_BODY (stmt) = body; | |
54f7877c | 6111 | |
1799e5d5 RH |
6112 | return add_stmt (stmt); |
6113 | } | |
6114 | ||
a68ab351 JJ |
6115 | tree |
6116 | begin_omp_task (void) | |
6117 | { | |
6118 | keep_next_level (true); | |
6119 | return begin_omp_structured_block (); | |
6120 | } | |
6121 | ||
6122 | tree | |
6123 | finish_omp_task (tree clauses, tree body) | |
6124 | { | |
6125 | tree stmt; | |
6126 | ||
6127 | body = finish_omp_structured_block (body); | |
6128 | ||
6129 | stmt = make_node (OMP_TASK); | |
6130 | TREE_TYPE (stmt) = void_type_node; | |
6131 | OMP_TASK_CLAUSES (stmt) = clauses; | |
6132 | OMP_TASK_BODY (stmt) = body; | |
6133 | ||
6134 | return add_stmt (stmt); | |
6135 | } | |
6136 | ||
6137 | /* Helper function for finish_omp_for. Convert Ith random access iterator | |
6138 | into integral iterator. Return FALSE if successful. */ | |
6139 | ||
6140 | static bool | |
6141 | handle_omp_for_class_iterator (int i, location_t locus, tree declv, tree initv, | |
6142 | tree condv, tree incrv, tree *body, | |
9a771876 | 6143 | tree *pre_body, tree clauses, tree *lastp) |
a68ab351 JJ |
6144 | { |
6145 | tree diff, iter_init, iter_incr = NULL, last; | |
6146 | tree incr_var = NULL, orig_pre_body, orig_body, c; | |
6147 | tree decl = TREE_VEC_ELT (declv, i); | |
6148 | tree init = TREE_VEC_ELT (initv, i); | |
6149 | tree cond = TREE_VEC_ELT (condv, i); | |
6150 | tree incr = TREE_VEC_ELT (incrv, i); | |
6151 | tree iter = decl; | |
6152 | location_t elocus = locus; | |
6153 | ||
6154 | if (init && EXPR_HAS_LOCATION (init)) | |
6155 | elocus = EXPR_LOCATION (init); | |
6156 | ||
6157 | switch (TREE_CODE (cond)) | |
6158 | { | |
6159 | case GT_EXPR: | |
6160 | case GE_EXPR: | |
6161 | case LT_EXPR: | |
6162 | case LE_EXPR: | |
9a771876 | 6163 | case NE_EXPR: |
c5cdb03f JJ |
6164 | if (TREE_OPERAND (cond, 1) == iter) |
6165 | cond = build2 (swap_tree_comparison (TREE_CODE (cond)), | |
6166 | TREE_TYPE (cond), iter, TREE_OPERAND (cond, 0)); | |
a68ab351 JJ |
6167 | if (TREE_OPERAND (cond, 0) != iter) |
6168 | cond = error_mark_node; | |
6169 | else | |
6170 | { | |
f330f599 PC |
6171 | tree tem = build_x_binary_op (EXPR_LOCATION (cond), |
6172 | TREE_CODE (cond), | |
4fe977f2 | 6173 | iter, ERROR_MARK, |
a68ab351 JJ |
6174 | TREE_OPERAND (cond, 1), ERROR_MARK, |
6175 | NULL, tf_warning_or_error); | |
6176 | if (error_operand_p (tem)) | |
6177 | return true; | |
6178 | } | |
6179 | break; | |
6180 | default: | |
6181 | cond = error_mark_node; | |
6182 | break; | |
6183 | } | |
6184 | if (cond == error_mark_node) | |
6185 | { | |
69bc6bff | 6186 | error_at (elocus, "invalid controlling predicate"); |
a68ab351 JJ |
6187 | return true; |
6188 | } | |
f330f599 | 6189 | diff = build_x_binary_op (elocus, MINUS_EXPR, TREE_OPERAND (cond, 1), |
a68ab351 JJ |
6190 | ERROR_MARK, iter, ERROR_MARK, NULL, |
6191 | tf_warning_or_error); | |
6192 | if (error_operand_p (diff)) | |
6193 | return true; | |
6194 | if (TREE_CODE (TREE_TYPE (diff)) != INTEGER_TYPE) | |
6195 | { | |
69bc6bff MLI |
6196 | error_at (elocus, "difference between %qE and %qD does not have integer type", |
6197 | TREE_OPERAND (cond, 1), iter); | |
a68ab351 JJ |
6198 | return true; |
6199 | } | |
6200 | ||
6201 | switch (TREE_CODE (incr)) | |
6202 | { | |
6203 | case PREINCREMENT_EXPR: | |
6204 | case PREDECREMENT_EXPR: | |
6205 | case POSTINCREMENT_EXPR: | |
6206 | case POSTDECREMENT_EXPR: | |
6207 | if (TREE_OPERAND (incr, 0) != iter) | |
6208 | { | |
6209 | incr = error_mark_node; | |
6210 | break; | |
6211 | } | |
f330f599 PC |
6212 | iter_incr = build_x_unary_op (EXPR_LOCATION (incr), |
6213 | TREE_CODE (incr), iter, | |
a68ab351 JJ |
6214 | tf_warning_or_error); |
6215 | if (error_operand_p (iter_incr)) | |
6216 | return true; | |
6217 | else if (TREE_CODE (incr) == PREINCREMENT_EXPR | |
6218 | || TREE_CODE (incr) == POSTINCREMENT_EXPR) | |
6219 | incr = integer_one_node; | |
6220 | else | |
6221 | incr = integer_minus_one_node; | |
6222 | break; | |
6223 | case MODIFY_EXPR: | |
6224 | if (TREE_OPERAND (incr, 0) != iter) | |
6225 | incr = error_mark_node; | |
6226 | else if (TREE_CODE (TREE_OPERAND (incr, 1)) == PLUS_EXPR | |
6227 | || TREE_CODE (TREE_OPERAND (incr, 1)) == MINUS_EXPR) | |
6228 | { | |
6229 | tree rhs = TREE_OPERAND (incr, 1); | |
6230 | if (TREE_OPERAND (rhs, 0) == iter) | |
6231 | { | |
6232 | if (TREE_CODE (TREE_TYPE (TREE_OPERAND (rhs, 1))) | |
6233 | != INTEGER_TYPE) | |
6234 | incr = error_mark_node; | |
6235 | else | |
6236 | { | |
f330f599 PC |
6237 | iter_incr = build_x_modify_expr (EXPR_LOCATION (rhs), |
6238 | iter, TREE_CODE (rhs), | |
a68ab351 JJ |
6239 | TREE_OPERAND (rhs, 1), |
6240 | tf_warning_or_error); | |
6241 | if (error_operand_p (iter_incr)) | |
6242 | return true; | |
6243 | incr = TREE_OPERAND (rhs, 1); | |
4b978f96 PC |
6244 | incr = cp_convert (TREE_TYPE (diff), incr, |
6245 | tf_warning_or_error); | |
a68ab351 JJ |
6246 | if (TREE_CODE (rhs) == MINUS_EXPR) |
6247 | { | |
6248 | incr = build1 (NEGATE_EXPR, TREE_TYPE (diff), incr); | |
6249 | incr = fold_if_not_in_template (incr); | |
6250 | } | |
6251 | if (TREE_CODE (incr) != INTEGER_CST | |
6252 | && (TREE_CODE (incr) != NOP_EXPR | |
6253 | || (TREE_CODE (TREE_OPERAND (incr, 0)) | |
6254 | != INTEGER_CST))) | |
6255 | iter_incr = NULL; | |
6256 | } | |
6257 | } | |
6258 | else if (TREE_OPERAND (rhs, 1) == iter) | |
6259 | { | |
6260 | if (TREE_CODE (TREE_TYPE (TREE_OPERAND (rhs, 0))) != INTEGER_TYPE | |
6261 | || TREE_CODE (rhs) != PLUS_EXPR) | |
6262 | incr = error_mark_node; | |
6263 | else | |
6264 | { | |
f330f599 PC |
6265 | iter_incr = build_x_binary_op (EXPR_LOCATION (rhs), |
6266 | PLUS_EXPR, | |
a68ab351 JJ |
6267 | TREE_OPERAND (rhs, 0), |
6268 | ERROR_MARK, iter, | |
6269 | ERROR_MARK, NULL, | |
6270 | tf_warning_or_error); | |
6271 | if (error_operand_p (iter_incr)) | |
6272 | return true; | |
f330f599 PC |
6273 | iter_incr = build_x_modify_expr (EXPR_LOCATION (rhs), |
6274 | iter, NOP_EXPR, | |
a68ab351 JJ |
6275 | iter_incr, |
6276 | tf_warning_or_error); | |
6277 | if (error_operand_p (iter_incr)) | |
6278 | return true; | |
6279 | incr = TREE_OPERAND (rhs, 0); | |
6280 | iter_incr = NULL; | |
6281 | } | |
6282 | } | |
6283 | else | |
6284 | incr = error_mark_node; | |
6285 | } | |
6286 | else | |
6287 | incr = error_mark_node; | |
6288 | break; | |
6289 | default: | |
6290 | incr = error_mark_node; | |
6291 | break; | |
6292 | } | |
6293 | ||
6294 | if (incr == error_mark_node) | |
6295 | { | |
69bc6bff | 6296 | error_at (elocus, "invalid increment expression"); |
a68ab351 JJ |
6297 | return true; |
6298 | } | |
6299 | ||
4b978f96 | 6300 | incr = cp_convert (TREE_TYPE (diff), incr, tf_warning_or_error); |
a68ab351 JJ |
6301 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) |
6302 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE | |
6303 | && OMP_CLAUSE_DECL (c) == iter) | |
6304 | break; | |
6305 | ||
6306 | decl = create_temporary_var (TREE_TYPE (diff)); | |
6307 | pushdecl (decl); | |
6308 | add_decl_expr (decl); | |
6309 | last = create_temporary_var (TREE_TYPE (diff)); | |
6310 | pushdecl (last); | |
6311 | add_decl_expr (last); | |
6312 | if (c && iter_incr == NULL) | |
6313 | { | |
6314 | incr_var = create_temporary_var (TREE_TYPE (diff)); | |
6315 | pushdecl (incr_var); | |
6316 | add_decl_expr (incr_var); | |
6317 | } | |
6318 | gcc_assert (stmts_are_full_exprs_p ()); | |
6319 | ||
6320 | orig_pre_body = *pre_body; | |
6321 | *pre_body = push_stmt_list (); | |
6322 | if (orig_pre_body) | |
6323 | add_stmt (orig_pre_body); | |
6324 | if (init != NULL) | |
f330f599 PC |
6325 | finish_expr_stmt (build_x_modify_expr (elocus, |
6326 | iter, NOP_EXPR, init, | |
a68ab351 JJ |
6327 | tf_warning_or_error)); |
6328 | init = build_int_cst (TREE_TYPE (diff), 0); | |
6329 | if (c && iter_incr == NULL) | |
6330 | { | |
f330f599 PC |
6331 | finish_expr_stmt (build_x_modify_expr (elocus, |
6332 | incr_var, NOP_EXPR, | |
a68ab351 JJ |
6333 | incr, tf_warning_or_error)); |
6334 | incr = incr_var; | |
f330f599 PC |
6335 | iter_incr = build_x_modify_expr (elocus, |
6336 | iter, PLUS_EXPR, incr, | |
a68ab351 JJ |
6337 | tf_warning_or_error); |
6338 | } | |
f330f599 PC |
6339 | finish_expr_stmt (build_x_modify_expr (elocus, |
6340 | last, NOP_EXPR, init, | |
a68ab351 JJ |
6341 | tf_warning_or_error)); |
6342 | *pre_body = pop_stmt_list (*pre_body); | |
6343 | ||
ba47d38d AH |
6344 | cond = cp_build_binary_op (elocus, |
6345 | TREE_CODE (cond), decl, diff, | |
a68ab351 | 6346 | tf_warning_or_error); |
32e8bb8e | 6347 | incr = build_modify_expr (elocus, decl, NULL_TREE, PLUS_EXPR, |
c2255bc4 | 6348 | elocus, incr, NULL_TREE); |
a68ab351 JJ |
6349 | |
6350 | orig_body = *body; | |
6351 | *body = push_stmt_list (); | |
6352 | iter_init = build2 (MINUS_EXPR, TREE_TYPE (diff), decl, last); | |
f330f599 PC |
6353 | iter_init = build_x_modify_expr (elocus, |
6354 | iter, PLUS_EXPR, iter_init, | |
a68ab351 JJ |
6355 | tf_warning_or_error); |
6356 | iter_init = build1 (NOP_EXPR, void_type_node, iter_init); | |
6357 | finish_expr_stmt (iter_init); | |
f330f599 PC |
6358 | finish_expr_stmt (build_x_modify_expr (elocus, |
6359 | last, NOP_EXPR, decl, | |
a68ab351 JJ |
6360 | tf_warning_or_error)); |
6361 | add_stmt (orig_body); | |
6362 | *body = pop_stmt_list (*body); | |
6363 | ||
6364 | if (c) | |
6365 | { | |
6366 | OMP_CLAUSE_LASTPRIVATE_STMT (c) = push_stmt_list (); | |
6367 | finish_expr_stmt (iter_incr); | |
6368 | OMP_CLAUSE_LASTPRIVATE_STMT (c) | |
6369 | = pop_stmt_list (OMP_CLAUSE_LASTPRIVATE_STMT (c)); | |
6370 | } | |
6371 | ||
6372 | TREE_VEC_ELT (declv, i) = decl; | |
6373 | TREE_VEC_ELT (initv, i) = init; | |
6374 | TREE_VEC_ELT (condv, i) = cond; | |
6375 | TREE_VEC_ELT (incrv, i) = incr; | |
9a771876 | 6376 | *lastp = last; |
a68ab351 JJ |
6377 | |
6378 | return false; | |
6379 | } | |
6380 | ||
1799e5d5 RH |
6381 | /* Build and validate an OMP_FOR statement. CLAUSES, BODY, COND, INCR |
6382 | are directly for their associated operands in the statement. DECL | |
6383 | and INIT are a combo; if DECL is NULL then INIT ought to be a | |
6384 | MODIFY_EXPR, and the DECL should be extracted. PRE_BODY are | |
6385 | optional statements that need to go before the loop into its | |
6386 | sk_omp scope. */ | |
6387 | ||
6388 | tree | |
acf0174b JJ |
6389 | finish_omp_for (location_t locus, enum tree_code code, tree declv, tree initv, |
6390 | tree condv, tree incrv, tree body, tree pre_body, tree clauses) | |
a68ab351 JJ |
6391 | { |
6392 | tree omp_for = NULL, orig_incr = NULL; | |
9a771876 JJ |
6393 | tree decl = NULL, init, cond, incr, orig_decl = NULL_TREE, block = NULL_TREE; |
6394 | tree last = NULL_TREE; | |
a68ab351 JJ |
6395 | location_t elocus; |
6396 | int i; | |
6397 | ||
6398 | gcc_assert (TREE_VEC_LENGTH (declv) == TREE_VEC_LENGTH (initv)); | |
6399 | gcc_assert (TREE_VEC_LENGTH (declv) == TREE_VEC_LENGTH (condv)); | |
6400 | gcc_assert (TREE_VEC_LENGTH (declv) == TREE_VEC_LENGTH (incrv)); | |
6401 | for (i = 0; i < TREE_VEC_LENGTH (declv); i++) | |
6402 | { | |
6403 | decl = TREE_VEC_ELT (declv, i); | |
6404 | init = TREE_VEC_ELT (initv, i); | |
6405 | cond = TREE_VEC_ELT (condv, i); | |
6406 | incr = TREE_VEC_ELT (incrv, i); | |
6407 | elocus = locus; | |
6408 | ||
6409 | if (decl == NULL) | |
6410 | { | |
6411 | if (init != NULL) | |
6412 | switch (TREE_CODE (init)) | |
1799e5d5 | 6413 | { |
a68ab351 | 6414 | case MODIFY_EXPR: |
1799e5d5 | 6415 | decl = TREE_OPERAND (init, 0); |
a68ab351 JJ |
6416 | init = TREE_OPERAND (init, 1); |
6417 | break; | |
6418 | case MODOP_EXPR: | |
6419 | if (TREE_CODE (TREE_OPERAND (init, 1)) == NOP_EXPR) | |
6420 | { | |
6421 | decl = TREE_OPERAND (init, 0); | |
6422 | init = TREE_OPERAND (init, 2); | |
6423 | } | |
6424 | break; | |
6425 | default: | |
6426 | break; | |
1799e5d5 | 6427 | } |
1799e5d5 | 6428 | |
a68ab351 JJ |
6429 | if (decl == NULL) |
6430 | { | |
69bc6bff MLI |
6431 | error_at (locus, |
6432 | "expected iteration declaration or initialization"); | |
a68ab351 JJ |
6433 | return NULL; |
6434 | } | |
1799e5d5 | 6435 | } |
1799e5d5 | 6436 | |
a68ab351 JJ |
6437 | if (init && EXPR_HAS_LOCATION (init)) |
6438 | elocus = EXPR_LOCATION (init); | |
1799e5d5 RH |
6439 | |
6440 | if (cond == NULL) | |
6441 | { | |
69bc6bff | 6442 | error_at (elocus, "missing controlling predicate"); |
1799e5d5 RH |
6443 | return NULL; |
6444 | } | |
6445 | ||
6446 | if (incr == NULL) | |
6447 | { | |
69bc6bff | 6448 | error_at (elocus, "missing increment expression"); |
1799e5d5 RH |
6449 | return NULL; |
6450 | } | |
6451 | ||
a68ab351 JJ |
6452 | TREE_VEC_ELT (declv, i) = decl; |
6453 | TREE_VEC_ELT (initv, i) = init; | |
6454 | } | |
6455 | ||
6456 | if (dependent_omp_for_p (declv, initv, condv, incrv)) | |
6457 | { | |
6458 | tree stmt; | |
6459 | ||
acf0174b | 6460 | stmt = make_node (code); |
1799e5d5 | 6461 | |
a68ab351 JJ |
6462 | for (i = 0; i < TREE_VEC_LENGTH (declv); i++) |
6463 | { | |
6464 | /* This is really just a place-holder. We'll be decomposing this | |
6465 | again and going through the cp_build_modify_expr path below when | |
6466 | we instantiate the thing. */ | |
6467 | TREE_VEC_ELT (initv, i) | |
6468 | = build2 (MODIFY_EXPR, void_type_node, TREE_VEC_ELT (declv, i), | |
6469 | TREE_VEC_ELT (initv, i)); | |
6470 | } | |
1799e5d5 RH |
6471 | |
6472 | TREE_TYPE (stmt) = void_type_node; | |
a68ab351 JJ |
6473 | OMP_FOR_INIT (stmt) = initv; |
6474 | OMP_FOR_COND (stmt) = condv; | |
6475 | OMP_FOR_INCR (stmt) = incrv; | |
1799e5d5 RH |
6476 | OMP_FOR_BODY (stmt) = body; |
6477 | OMP_FOR_PRE_BODY (stmt) = pre_body; | |
a68ab351 | 6478 | OMP_FOR_CLAUSES (stmt) = clauses; |
1799e5d5 RH |
6479 | |
6480 | SET_EXPR_LOCATION (stmt, locus); | |
6481 | return add_stmt (stmt); | |
6482 | } | |
6483 | ||
a68ab351 JJ |
6484 | if (processing_template_decl) |
6485 | orig_incr = make_tree_vec (TREE_VEC_LENGTH (incrv)); | |
1799e5d5 | 6486 | |
a68ab351 | 6487 | for (i = 0; i < TREE_VEC_LENGTH (declv); ) |
dadb19e0 | 6488 | { |
a68ab351 JJ |
6489 | decl = TREE_VEC_ELT (declv, i); |
6490 | init = TREE_VEC_ELT (initv, i); | |
6491 | cond = TREE_VEC_ELT (condv, i); | |
6492 | incr = TREE_VEC_ELT (incrv, i); | |
6493 | if (orig_incr) | |
6494 | TREE_VEC_ELT (orig_incr, i) = incr; | |
6495 | elocus = locus; | |
6496 | ||
6497 | if (init && EXPR_HAS_LOCATION (init)) | |
dadb19e0 | 6498 | elocus = EXPR_LOCATION (init); |
dadb19e0 | 6499 | |
a68ab351 JJ |
6500 | if (!DECL_P (decl)) |
6501 | { | |
69bc6bff | 6502 | error_at (elocus, "expected iteration declaration or initialization"); |
a68ab351 JJ |
6503 | return NULL; |
6504 | } | |
969c111d | 6505 | |
a68ab351 JJ |
6506 | if (incr && TREE_CODE (incr) == MODOP_EXPR) |
6507 | { | |
6508 | if (orig_incr) | |
6509 | TREE_VEC_ELT (orig_incr, i) = incr; | |
6510 | incr = cp_build_modify_expr (TREE_OPERAND (incr, 0), | |
6511 | TREE_CODE (TREE_OPERAND (incr, 1)), | |
6512 | TREE_OPERAND (incr, 2), | |
6513 | tf_warning_or_error); | |
6514 | } | |
6515 | ||
6516 | if (CLASS_TYPE_P (TREE_TYPE (decl))) | |
6517 | { | |
acf0174b JJ |
6518 | if (code == OMP_SIMD) |
6519 | { | |
6520 | error_at (elocus, "%<#pragma omp simd%> used with class " | |
6521 | "iteration variable %qE", decl); | |
6522 | return NULL; | |
6523 | } | |
9a771876 JJ |
6524 | if (code == CILK_FOR && i == 0) |
6525 | orig_decl = decl; | |
a68ab351 | 6526 | if (handle_omp_for_class_iterator (i, locus, declv, initv, condv, |
9a771876 JJ |
6527 | incrv, &body, &pre_body, |
6528 | clauses, &last)) | |
a68ab351 JJ |
6529 | return NULL; |
6530 | continue; | |
6531 | } | |
6532 | ||
6533 | if (!INTEGRAL_TYPE_P (TREE_TYPE (decl)) | |
50e10fa8 | 6534 | && !TYPE_PTR_P (TREE_TYPE (decl))) |
a68ab351 | 6535 | { |
69bc6bff | 6536 | error_at (elocus, "invalid type for iteration variable %qE", decl); |
a68ab351 JJ |
6537 | return NULL; |
6538 | } | |
969c111d | 6539 | |
b2ebd268 | 6540 | if (!processing_template_decl) |
8569b2d0 JJ |
6541 | { |
6542 | init = fold_build_cleanup_point_expr (TREE_TYPE (init), init); | |
6543 | init = cp_build_modify_expr (decl, NOP_EXPR, init, tf_warning_or_error); | |
6544 | } | |
6545 | else | |
6546 | init = build2 (MODIFY_EXPR, void_type_node, decl, init); | |
e4ebaef3 JJ |
6547 | if (cond |
6548 | && TREE_SIDE_EFFECTS (cond) | |
6549 | && COMPARISON_CLASS_P (cond) | |
6550 | && !processing_template_decl) | |
a68ab351 | 6551 | { |
e4ebaef3 JJ |
6552 | tree t = TREE_OPERAND (cond, 0); |
6553 | if (TREE_SIDE_EFFECTS (t) | |
6554 | && t != decl | |
6555 | && (TREE_CODE (t) != NOP_EXPR | |
6556 | || TREE_OPERAND (t, 0) != decl)) | |
6557 | TREE_OPERAND (cond, 0) | |
6558 | = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
a68ab351 | 6559 | |
e4ebaef3 JJ |
6560 | t = TREE_OPERAND (cond, 1); |
6561 | if (TREE_SIDE_EFFECTS (t) | |
6562 | && t != decl | |
6563 | && (TREE_CODE (t) != NOP_EXPR | |
6564 | || TREE_OPERAND (t, 0) != decl)) | |
6565 | TREE_OPERAND (cond, 1) | |
a68ab351 JJ |
6566 | = fold_build_cleanup_point_expr (TREE_TYPE (t), t); |
6567 | } | |
6568 | if (decl == error_mark_node || init == error_mark_node) | |
6569 | return NULL; | |
6570 | ||
6571 | TREE_VEC_ELT (declv, i) = decl; | |
6572 | TREE_VEC_ELT (initv, i) = init; | |
6573 | TREE_VEC_ELT (condv, i) = cond; | |
6574 | TREE_VEC_ELT (incrv, i) = incr; | |
6575 | i++; | |
969c111d | 6576 | } |
a68ab351 JJ |
6577 | |
6578 | if (IS_EMPTY_STMT (pre_body)) | |
6579 | pre_body = NULL; | |
6580 | ||
9a771876 JJ |
6581 | if (code == CILK_FOR && !processing_template_decl) |
6582 | block = push_stmt_list (); | |
6583 | ||
acf0174b | 6584 | omp_for = c_finish_omp_for (locus, code, declv, initv, condv, incrv, |
a68ab351 JJ |
6585 | body, pre_body); |
6586 | ||
6587 | if (omp_for == NULL) | |
9a771876 JJ |
6588 | { |
6589 | if (block) | |
6590 | pop_stmt_list (block); | |
6591 | return NULL; | |
6592 | } | |
a68ab351 JJ |
6593 | |
6594 | for (i = 0; i < TREE_VEC_LENGTH (OMP_FOR_INCR (omp_for)); i++) | |
969c111d | 6595 | { |
e4ebaef3 JJ |
6596 | decl = TREE_OPERAND (TREE_VEC_ELT (OMP_FOR_INIT (omp_for), i), 0); |
6597 | incr = TREE_VEC_ELT (OMP_FOR_INCR (omp_for), i); | |
969c111d | 6598 | |
a68ab351 JJ |
6599 | if (TREE_CODE (incr) != MODIFY_EXPR) |
6600 | continue; | |
6601 | ||
6602 | if (TREE_SIDE_EFFECTS (TREE_OPERAND (incr, 1)) | |
e4ebaef3 JJ |
6603 | && BINARY_CLASS_P (TREE_OPERAND (incr, 1)) |
6604 | && !processing_template_decl) | |
a68ab351 | 6605 | { |
e4ebaef3 JJ |
6606 | tree t = TREE_OPERAND (TREE_OPERAND (incr, 1), 0); |
6607 | if (TREE_SIDE_EFFECTS (t) | |
6608 | && t != decl | |
6609 | && (TREE_CODE (t) != NOP_EXPR | |
6610 | || TREE_OPERAND (t, 0) != decl)) | |
6611 | TREE_OPERAND (TREE_OPERAND (incr, 1), 0) | |
6612 | = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
a68ab351 | 6613 | |
e4ebaef3 JJ |
6614 | t = TREE_OPERAND (TREE_OPERAND (incr, 1), 1); |
6615 | if (TREE_SIDE_EFFECTS (t) | |
6616 | && t != decl | |
6617 | && (TREE_CODE (t) != NOP_EXPR | |
6618 | || TREE_OPERAND (t, 0) != decl)) | |
6619 | TREE_OPERAND (TREE_OPERAND (incr, 1), 1) | |
6620 | = fold_build_cleanup_point_expr (TREE_TYPE (t), t); | |
a68ab351 JJ |
6621 | } |
6622 | ||
6623 | if (orig_incr) | |
6624 | TREE_VEC_ELT (OMP_FOR_INCR (omp_for), i) = TREE_VEC_ELT (orig_incr, i); | |
969c111d | 6625 | } |
9a771876 JJ |
6626 | OMP_FOR_CLAUSES (omp_for) = clauses; |
6627 | ||
6628 | if (block) | |
6629 | { | |
6630 | tree omp_par = make_node (OMP_PARALLEL); | |
6631 | TREE_TYPE (omp_par) = void_type_node; | |
6632 | OMP_PARALLEL_CLAUSES (omp_par) = NULL_TREE; | |
6633 | tree bind = build3 (BIND_EXPR, void_type_node, NULL, NULL, NULL); | |
6634 | TREE_SIDE_EFFECTS (bind) = 1; | |
6635 | BIND_EXPR_BODY (bind) = pop_stmt_list (block); | |
6636 | OMP_PARALLEL_BODY (omp_par) = bind; | |
6637 | if (OMP_FOR_PRE_BODY (omp_for)) | |
6638 | { | |
6639 | add_stmt (OMP_FOR_PRE_BODY (omp_for)); | |
6640 | OMP_FOR_PRE_BODY (omp_for) = NULL_TREE; | |
6641 | } | |
6642 | init = TREE_VEC_ELT (OMP_FOR_INIT (omp_for), 0); | |
6643 | decl = TREE_OPERAND (init, 0); | |
6644 | cond = TREE_VEC_ELT (OMP_FOR_COND (omp_for), 0); | |
6645 | incr = TREE_VEC_ELT (OMP_FOR_INCR (omp_for), 0); | |
6646 | tree t = TREE_OPERAND (cond, 1), c, clauses, *pc; | |
6647 | clauses = OMP_FOR_CLAUSES (omp_for); | |
6648 | OMP_FOR_CLAUSES (omp_for) = NULL_TREE; | |
6649 | for (pc = &clauses; *pc; ) | |
6650 | if (OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_SCHEDULE) | |
6651 | { | |
6652 | gcc_assert (OMP_FOR_CLAUSES (omp_for) == NULL_TREE); | |
6653 | OMP_FOR_CLAUSES (omp_for) = *pc; | |
6654 | *pc = OMP_CLAUSE_CHAIN (*pc); | |
6655 | OMP_CLAUSE_CHAIN (OMP_FOR_CLAUSES (omp_for)) = NULL_TREE; | |
6656 | } | |
6657 | else | |
6658 | { | |
6659 | gcc_assert (OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_FIRSTPRIVATE); | |
6660 | pc = &OMP_CLAUSE_CHAIN (*pc); | |
6661 | } | |
6662 | if (TREE_CODE (t) != INTEGER_CST) | |
6663 | { | |
6664 | TREE_OPERAND (cond, 1) = get_temp_regvar (TREE_TYPE (t), t); | |
6665 | c = build_omp_clause (input_location, OMP_CLAUSE_FIRSTPRIVATE); | |
6666 | OMP_CLAUSE_DECL (c) = TREE_OPERAND (cond, 1); | |
6667 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6668 | clauses = c; | |
6669 | } | |
6670 | if (TREE_CODE (incr) == MODIFY_EXPR) | |
6671 | { | |
6672 | t = TREE_OPERAND (TREE_OPERAND (incr, 1), 1); | |
6673 | if (TREE_CODE (t) != INTEGER_CST) | |
6674 | { | |
6675 | TREE_OPERAND (TREE_OPERAND (incr, 1), 1) | |
6676 | = get_temp_regvar (TREE_TYPE (t), t); | |
6677 | c = build_omp_clause (input_location, OMP_CLAUSE_FIRSTPRIVATE); | |
6678 | OMP_CLAUSE_DECL (c) = TREE_OPERAND (TREE_OPERAND (incr, 1), 1); | |
6679 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6680 | clauses = c; | |
6681 | } | |
6682 | } | |
6683 | t = TREE_OPERAND (init, 1); | |
6684 | if (TREE_CODE (t) != INTEGER_CST) | |
6685 | { | |
6686 | TREE_OPERAND (init, 1) = get_temp_regvar (TREE_TYPE (t), t); | |
6687 | c = build_omp_clause (input_location, OMP_CLAUSE_FIRSTPRIVATE); | |
6688 | OMP_CLAUSE_DECL (c) = TREE_OPERAND (init, 1); | |
6689 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6690 | clauses = c; | |
6691 | } | |
6692 | if (orig_decl && orig_decl != decl) | |
6693 | { | |
6694 | c = build_omp_clause (input_location, OMP_CLAUSE_FIRSTPRIVATE); | |
6695 | OMP_CLAUSE_DECL (c) = orig_decl; | |
6696 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6697 | clauses = c; | |
6698 | } | |
6699 | if (last) | |
6700 | { | |
6701 | c = build_omp_clause (input_location, OMP_CLAUSE_FIRSTPRIVATE); | |
6702 | OMP_CLAUSE_DECL (c) = last; | |
6703 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6704 | clauses = c; | |
6705 | } | |
6706 | c = build_omp_clause (input_location, OMP_CLAUSE_PRIVATE); | |
6707 | OMP_CLAUSE_DECL (c) = decl; | |
6708 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6709 | clauses = c; | |
6710 | c = build_omp_clause (input_location, OMP_CLAUSE__CILK_FOR_COUNT_); | |
6711 | OMP_CLAUSE_OPERAND (c, 0) | |
6712 | = cilk_for_number_of_iterations (omp_for); | |
6713 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6714 | OMP_PARALLEL_CLAUSES (omp_par) = finish_omp_clauses (c); | |
6715 | add_stmt (omp_par); | |
6716 | return omp_par; | |
6717 | } | |
6718 | else if (code == CILK_FOR && processing_template_decl) | |
6719 | { | |
6720 | tree c, clauses = OMP_FOR_CLAUSES (omp_for); | |
6721 | if (orig_decl && orig_decl != decl) | |
6722 | { | |
6723 | c = build_omp_clause (input_location, OMP_CLAUSE_FIRSTPRIVATE); | |
6724 | OMP_CLAUSE_DECL (c) = orig_decl; | |
6725 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6726 | clauses = c; | |
6727 | } | |
6728 | if (last) | |
6729 | { | |
6730 | c = build_omp_clause (input_location, OMP_CLAUSE_FIRSTPRIVATE); | |
6731 | OMP_CLAUSE_DECL (c) = last; | |
6732 | OMP_CLAUSE_CHAIN (c) = clauses; | |
6733 | clauses = c; | |
6734 | } | |
6735 | OMP_FOR_CLAUSES (omp_for) = clauses; | |
6736 | } | |
969c111d | 6737 | return omp_for; |
1799e5d5 RH |
6738 | } |
6739 | ||
6740 | void | |
20906c66 | 6741 | finish_omp_atomic (enum tree_code code, enum tree_code opcode, tree lhs, |
acf0174b | 6742 | tree rhs, tree v, tree lhs1, tree rhs1, bool seq_cst) |
1799e5d5 | 6743 | { |
239371f9 JJ |
6744 | tree orig_lhs; |
6745 | tree orig_rhs; | |
20906c66 JJ |
6746 | tree orig_v; |
6747 | tree orig_lhs1; | |
6748 | tree orig_rhs1; | |
239371f9 | 6749 | bool dependent_p; |
e6bd5565 MM |
6750 | tree stmt; |
6751 | ||
239371f9 JJ |
6752 | orig_lhs = lhs; |
6753 | orig_rhs = rhs; | |
20906c66 JJ |
6754 | orig_v = v; |
6755 | orig_lhs1 = lhs1; | |
6756 | orig_rhs1 = rhs1; | |
239371f9 JJ |
6757 | dependent_p = false; |
6758 | stmt = NULL_TREE; | |
6759 | ||
6760 | /* Even in a template, we can detect invalid uses of the atomic | |
6761 | pragma if neither LHS nor RHS is type-dependent. */ | |
6762 | if (processing_template_decl) | |
e6bd5565 | 6763 | { |
239371f9 | 6764 | dependent_p = (type_dependent_expression_p (lhs) |
20906c66 JJ |
6765 | || (rhs && type_dependent_expression_p (rhs)) |
6766 | || (v && type_dependent_expression_p (v)) | |
6767 | || (lhs1 && type_dependent_expression_p (lhs1)) | |
6768 | || (rhs1 && type_dependent_expression_p (rhs1))); | |
239371f9 | 6769 | if (!dependent_p) |
e6bd5565 MM |
6770 | { |
6771 | lhs = build_non_dependent_expr (lhs); | |
20906c66 JJ |
6772 | if (rhs) |
6773 | rhs = build_non_dependent_expr (rhs); | |
6774 | if (v) | |
6775 | v = build_non_dependent_expr (v); | |
6776 | if (lhs1) | |
6777 | lhs1 = build_non_dependent_expr (lhs1); | |
6778 | if (rhs1) | |
6779 | rhs1 = build_non_dependent_expr (rhs1); | |
e6bd5565 | 6780 | } |
239371f9 JJ |
6781 | } |
6782 | if (!dependent_p) | |
6783 | { | |
acf0174b JJ |
6784 | bool swapped = false; |
6785 | if (rhs1 && cp_tree_equal (lhs, rhs)) | |
6786 | { | |
6787 | tree tem = rhs; | |
6788 | rhs = rhs1; | |
6789 | rhs1 = tem; | |
6790 | swapped = !commutative_tree_code (opcode); | |
6791 | } | |
6792 | if (rhs1 && !cp_tree_equal (lhs, rhs1)) | |
6793 | { | |
6794 | if (code == OMP_ATOMIC) | |
6795 | error ("%<#pragma omp atomic update%> uses two different " | |
6796 | "expressions for memory"); | |
6797 | else | |
6798 | error ("%<#pragma omp atomic capture%> uses two different " | |
6799 | "expressions for memory"); | |
6800 | return; | |
6801 | } | |
6802 | if (lhs1 && !cp_tree_equal (lhs, lhs1)) | |
6803 | { | |
6804 | if (code == OMP_ATOMIC) | |
6805 | error ("%<#pragma omp atomic update%> uses two different " | |
6806 | "expressions for memory"); | |
6807 | else | |
6808 | error ("%<#pragma omp atomic capture%> uses two different " | |
6809 | "expressions for memory"); | |
6810 | return; | |
6811 | } | |
20906c66 | 6812 | stmt = c_finish_omp_atomic (input_location, code, opcode, lhs, rhs, |
acf0174b | 6813 | v, lhs1, rhs1, swapped, seq_cst); |
239371f9 JJ |
6814 | if (stmt == error_mark_node) |
6815 | return; | |
e6bd5565 | 6816 | } |
239371f9 | 6817 | if (processing_template_decl) |
20906c66 JJ |
6818 | { |
6819 | if (code == OMP_ATOMIC_READ) | |
6820 | { | |
f330f599 PC |
6821 | stmt = build_min_nt_loc (EXPR_LOCATION (orig_lhs), |
6822 | OMP_ATOMIC_READ, orig_lhs); | |
acf0174b | 6823 | OMP_ATOMIC_SEQ_CST (stmt) = seq_cst; |
20906c66 JJ |
6824 | stmt = build2 (MODIFY_EXPR, void_type_node, orig_v, stmt); |
6825 | } | |
6826 | else | |
6827 | { | |
6828 | if (opcode == NOP_EXPR) | |
6829 | stmt = build2 (MODIFY_EXPR, void_type_node, orig_lhs, orig_rhs); | |
6830 | else | |
6831 | stmt = build2 (opcode, void_type_node, orig_lhs, orig_rhs); | |
6832 | if (orig_rhs1) | |
f330f599 PC |
6833 | stmt = build_min_nt_loc (EXPR_LOCATION (orig_rhs1), |
6834 | COMPOUND_EXPR, orig_rhs1, stmt); | |
20906c66 JJ |
6835 | if (code != OMP_ATOMIC) |
6836 | { | |
f330f599 PC |
6837 | stmt = build_min_nt_loc (EXPR_LOCATION (orig_lhs1), |
6838 | code, orig_lhs1, stmt); | |
acf0174b | 6839 | OMP_ATOMIC_SEQ_CST (stmt) = seq_cst; |
20906c66 JJ |
6840 | stmt = build2 (MODIFY_EXPR, void_type_node, orig_v, stmt); |
6841 | } | |
6842 | } | |
6843 | stmt = build2 (OMP_ATOMIC, void_type_node, integer_zero_node, stmt); | |
acf0174b | 6844 | OMP_ATOMIC_SEQ_CST (stmt) = seq_cst; |
20906c66 | 6845 | } |
e3f505d8 | 6846 | finish_expr_stmt (stmt); |
1799e5d5 RH |
6847 | } |
6848 | ||
6849 | void | |
6850 | finish_omp_barrier (void) | |
6851 | { | |
e79983f4 | 6852 | tree fn = builtin_decl_explicit (BUILT_IN_GOMP_BARRIER); |
9771b263 | 6853 | vec<tree, va_gc> *vec = make_tree_vector (); |
c166b898 ILT |
6854 | tree stmt = finish_call_expr (fn, &vec, false, false, tf_warning_or_error); |
6855 | release_tree_vector (vec); | |
1799e5d5 RH |
6856 | finish_expr_stmt (stmt); |
6857 | } | |
6858 | ||
6859 | void | |
6860 | finish_omp_flush (void) | |
6861 | { | |
e79983f4 | 6862 | tree fn = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
9771b263 | 6863 | vec<tree, va_gc> *vec = make_tree_vector (); |
c166b898 ILT |
6864 | tree stmt = finish_call_expr (fn, &vec, false, false, tf_warning_or_error); |
6865 | release_tree_vector (vec); | |
1799e5d5 RH |
6866 | finish_expr_stmt (stmt); |
6867 | } | |
6868 | ||
a68ab351 JJ |
6869 | void |
6870 | finish_omp_taskwait (void) | |
1799e5d5 | 6871 | { |
e79983f4 | 6872 | tree fn = builtin_decl_explicit (BUILT_IN_GOMP_TASKWAIT); |
9771b263 | 6873 | vec<tree, va_gc> *vec = make_tree_vector (); |
c166b898 ILT |
6874 | tree stmt = finish_call_expr (fn, &vec, false, false, tf_warning_or_error); |
6875 | release_tree_vector (vec); | |
a68ab351 | 6876 | finish_expr_stmt (stmt); |
1799e5d5 | 6877 | } |
20906c66 JJ |
6878 | |
6879 | void | |
6880 | finish_omp_taskyield (void) | |
6881 | { | |
e79983f4 | 6882 | tree fn = builtin_decl_explicit (BUILT_IN_GOMP_TASKYIELD); |
9771b263 | 6883 | vec<tree, va_gc> *vec = make_tree_vector (); |
20906c66 JJ |
6884 | tree stmt = finish_call_expr (fn, &vec, false, false, tf_warning_or_error); |
6885 | release_tree_vector (vec); | |
6886 | finish_expr_stmt (stmt); | |
6887 | } | |
acf0174b JJ |
6888 | |
6889 | void | |
6890 | finish_omp_cancel (tree clauses) | |
6891 | { | |
6892 | tree fn = builtin_decl_explicit (BUILT_IN_GOMP_CANCEL); | |
6893 | int mask = 0; | |
6894 | if (find_omp_clause (clauses, OMP_CLAUSE_PARALLEL)) | |
6895 | mask = 1; | |
6896 | else if (find_omp_clause (clauses, OMP_CLAUSE_FOR)) | |
6897 | mask = 2; | |
6898 | else if (find_omp_clause (clauses, OMP_CLAUSE_SECTIONS)) | |
6899 | mask = 4; | |
6900 | else if (find_omp_clause (clauses, OMP_CLAUSE_TASKGROUP)) | |
6901 | mask = 8; | |
6902 | else | |
6903 | { | |
6904 | error ("%<#pragma omp cancel must specify one of " | |
6905 | "%<parallel%>, %<for%>, %<sections%> or %<taskgroup%> clauses"); | |
6906 | return; | |
6907 | } | |
6908 | vec<tree, va_gc> *vec = make_tree_vector (); | |
6909 | tree ifc = find_omp_clause (clauses, OMP_CLAUSE_IF); | |
6910 | if (ifc != NULL_TREE) | |
6911 | { | |
6912 | tree type = TREE_TYPE (OMP_CLAUSE_IF_EXPR (ifc)); | |
6913 | ifc = fold_build2_loc (OMP_CLAUSE_LOCATION (ifc), NE_EXPR, | |
6914 | boolean_type_node, OMP_CLAUSE_IF_EXPR (ifc), | |
6915 | build_zero_cst (type)); | |
6916 | } | |
6917 | else | |
6918 | ifc = boolean_true_node; | |
6919 | vec->quick_push (build_int_cst (integer_type_node, mask)); | |
6920 | vec->quick_push (ifc); | |
6921 | tree stmt = finish_call_expr (fn, &vec, false, false, tf_warning_or_error); | |
6922 | release_tree_vector (vec); | |
6923 | finish_expr_stmt (stmt); | |
6924 | } | |
6925 | ||
6926 | void | |
6927 | finish_omp_cancellation_point (tree clauses) | |
6928 | { | |
6929 | tree fn = builtin_decl_explicit (BUILT_IN_GOMP_CANCELLATION_POINT); | |
6930 | int mask = 0; | |
6931 | if (find_omp_clause (clauses, OMP_CLAUSE_PARALLEL)) | |
6932 | mask = 1; | |
6933 | else if (find_omp_clause (clauses, OMP_CLAUSE_FOR)) | |
6934 | mask = 2; | |
6935 | else if (find_omp_clause (clauses, OMP_CLAUSE_SECTIONS)) | |
6936 | mask = 4; | |
6937 | else if (find_omp_clause (clauses, OMP_CLAUSE_TASKGROUP)) | |
6938 | mask = 8; | |
6939 | else | |
6940 | { | |
6941 | error ("%<#pragma omp cancellation point must specify one of " | |
6942 | "%<parallel%>, %<for%>, %<sections%> or %<taskgroup%> clauses"); | |
6943 | return; | |
6944 | } | |
6945 | vec<tree, va_gc> *vec | |
6946 | = make_tree_vector_single (build_int_cst (integer_type_node, mask)); | |
6947 | tree stmt = finish_call_expr (fn, &vec, false, false, tf_warning_or_error); | |
6948 | release_tree_vector (vec); | |
6949 | finish_expr_stmt (stmt); | |
6950 | } | |
1799e5d5 | 6951 | \f |
0a35513e AH |
6952 | /* Begin a __transaction_atomic or __transaction_relaxed statement. |
6953 | If PCOMPOUND is non-null, this is for a function-transaction-block, and we | |
6954 | should create an extra compound stmt. */ | |
6955 | ||
6956 | tree | |
6957 | begin_transaction_stmt (location_t loc, tree *pcompound, int flags) | |
6958 | { | |
6959 | tree r; | |
6960 | ||
6961 | if (pcompound) | |
6962 | *pcompound = begin_compound_stmt (0); | |
6963 | ||
6964 | r = build_stmt (loc, TRANSACTION_EXPR, NULL_TREE); | |
6965 | ||
6966 | /* Only add the statement to the function if support enabled. */ | |
6967 | if (flag_tm) | |
6968 | add_stmt (r); | |
6969 | else | |
6970 | error_at (loc, ((flags & TM_STMT_ATTR_RELAXED) != 0 | |
6971 | ? G_("%<__transaction_relaxed%> without " | |
6972 | "transactional memory support enabled") | |
6973 | : G_("%<__transaction_atomic%> without " | |
6974 | "transactional memory support enabled"))); | |
6975 | ||
6976 | TRANSACTION_EXPR_BODY (r) = push_stmt_list (); | |
6f2d959b | 6977 | TREE_SIDE_EFFECTS (r) = 1; |
0a35513e AH |
6978 | return r; |
6979 | } | |
6980 | ||
6981 | /* End a __transaction_atomic or __transaction_relaxed statement. | |
6982 | If COMPOUND_STMT is non-null, this is for a function-transaction-block, | |
f0f3286a TR |
6983 | and we should end the compound. If NOEX is non-NULL, we wrap the body in |
6984 | a MUST_NOT_THROW_EXPR with NOEX as condition. */ | |
0a35513e AH |
6985 | |
6986 | void | |
f0f3286a | 6987 | finish_transaction_stmt (tree stmt, tree compound_stmt, int flags, tree noex) |
0a35513e AH |
6988 | { |
6989 | TRANSACTION_EXPR_BODY (stmt) = pop_stmt_list (TRANSACTION_EXPR_BODY (stmt)); | |
6990 | TRANSACTION_EXPR_OUTER (stmt) = (flags & TM_STMT_ATTR_OUTER) != 0; | |
6991 | TRANSACTION_EXPR_RELAXED (stmt) = (flags & TM_STMT_ATTR_RELAXED) != 0; | |
6992 | TRANSACTION_EXPR_IS_STMT (stmt) = 1; | |
6993 | ||
f0f3286a TR |
6994 | /* noexcept specifications are not allowed for function transactions. */ |
6995 | gcc_assert (!(noex && compound_stmt)); | |
6996 | if (noex) | |
6997 | { | |
6998 | tree body = build_must_not_throw_expr (TRANSACTION_EXPR_BODY (stmt), | |
6999 | noex); | |
550dfe7f MP |
7000 | /* This may not be true when the STATEMENT_LIST is empty. */ |
7001 | if (EXPR_P (body)) | |
7002 | SET_EXPR_LOCATION (body, EXPR_LOCATION (TRANSACTION_EXPR_BODY (stmt))); | |
f0f3286a TR |
7003 | TREE_SIDE_EFFECTS (body) = 1; |
7004 | TRANSACTION_EXPR_BODY (stmt) = body; | |
7005 | } | |
7006 | ||
0a35513e AH |
7007 | if (compound_stmt) |
7008 | finish_compound_stmt (compound_stmt); | |
0a35513e AH |
7009 | } |
7010 | ||
f0f3286a TR |
7011 | /* Build a __transaction_atomic or __transaction_relaxed expression. If |
7012 | NOEX is non-NULL, we wrap the body in a MUST_NOT_THROW_EXPR with NOEX as | |
7013 | condition. */ | |
0a35513e AH |
7014 | |
7015 | tree | |
f0f3286a | 7016 | build_transaction_expr (location_t loc, tree expr, int flags, tree noex) |
0a35513e AH |
7017 | { |
7018 | tree ret; | |
f0f3286a TR |
7019 | if (noex) |
7020 | { | |
7021 | expr = build_must_not_throw_expr (expr, noex); | |
830ce0a2 MP |
7022 | if (EXPR_P (expr)) |
7023 | SET_EXPR_LOCATION (expr, loc); | |
f0f3286a TR |
7024 | TREE_SIDE_EFFECTS (expr) = 1; |
7025 | } | |
0a35513e AH |
7026 | ret = build1 (TRANSACTION_EXPR, TREE_TYPE (expr), expr); |
7027 | if (flags & TM_STMT_ATTR_RELAXED) | |
7028 | TRANSACTION_EXPR_RELAXED (ret) = 1; | |
6f2d959b | 7029 | TREE_SIDE_EFFECTS (ret) = 1; |
0a35513e AH |
7030 | SET_EXPR_LOCATION (ret, loc); |
7031 | return ret; | |
7032 | } | |
7033 | \f | |
54f7877c | 7034 | void |
3a978d72 | 7035 | init_cp_semantics (void) |
54f7877c | 7036 | { |
54f7877c | 7037 | } |
55a3debe DG |
7038 | \f |
7039 | /* Build a STATIC_ASSERT for a static assertion with the condition | |
7040 | CONDITION and the message text MESSAGE. LOCATION is the location | |
7041 | of the static assertion in the source code. When MEMBER_P, this | |
7042 | static assertion is a member of a class. */ | |
7043 | void | |
7044 | finish_static_assert (tree condition, tree message, location_t location, | |
7045 | bool member_p) | |
7046 | { | |
61b6d4cd DS |
7047 | if (message == NULL_TREE |
7048 | || message == error_mark_node | |
7049 | || condition == NULL_TREE | |
7050 | || condition == error_mark_node) | |
7051 | return; | |
7052 | ||
7b3e2d46 DG |
7053 | if (check_for_bare_parameter_packs (condition)) |
7054 | condition = error_mark_node; | |
7055 | ||
55a3debe DG |
7056 | if (type_dependent_expression_p (condition) |
7057 | || value_dependent_expression_p (condition)) | |
7058 | { | |
7059 | /* We're in a template; build a STATIC_ASSERT and put it in | |
7060 | the right place. */ | |
7061 | tree assertion; | |
7062 | ||
7063 | assertion = make_node (STATIC_ASSERT); | |
7064 | STATIC_ASSERT_CONDITION (assertion) = condition; | |
7065 | STATIC_ASSERT_MESSAGE (assertion) = message; | |
7066 | STATIC_ASSERT_SOURCE_LOCATION (assertion) = location; | |
7067 | ||
7068 | if (member_p) | |
7069 | maybe_add_class_template_decl_list (current_class_type, | |
7070 | assertion, | |
7071 | /*friend_p=*/0); | |
7072 | else | |
7073 | add_stmt (assertion); | |
7074 | ||
7075 | return; | |
7076 | } | |
7077 | ||
7078 | /* Fold the expression and convert it to a boolean value. */ | |
234bef96 | 7079 | condition = instantiate_non_dependent_expr (condition); |
4b978f96 | 7080 | condition = cp_convert (boolean_type_node, condition, tf_warning_or_error); |
fa2200cb | 7081 | condition = maybe_constant_value (condition); |
55a3debe DG |
7082 | |
7083 | if (TREE_CODE (condition) == INTEGER_CST && !integer_zerop (condition)) | |
7084 | /* Do nothing; the condition is satisfied. */ | |
7085 | ; | |
7086 | else | |
7087 | { | |
7088 | location_t saved_loc = input_location; | |
7089 | ||
7090 | input_location = location; | |
7091 | if (TREE_CODE (condition) == INTEGER_CST | |
7092 | && integer_zerop (condition)) | |
7093 | /* Report the error. */ | |
32210fd6 | 7094 | error ("static assertion failed: %s", TREE_STRING_POINTER (message)); |
55a3debe | 7095 | else if (condition && condition != error_mark_node) |
fa2200cb JM |
7096 | { |
7097 | error ("non-constant condition for static assertion"); | |
9299bde0 PC |
7098 | if (require_potential_rvalue_constant_expression (condition)) |
7099 | cxx_constant_value (condition); | |
fa2200cb | 7100 | } |
55a3debe DG |
7101 | input_location = saved_loc; |
7102 | } | |
7103 | } | |
3ad6a8e1 DG |
7104 | \f |
7105 | /* Implements the C++0x decltype keyword. Returns the type of EXPR, | |
7106 | suitable for use as a type-specifier. | |
7107 | ||
7108 | ID_EXPRESSION_OR_MEMBER_ACCESS_P is true when EXPR was parsed as an | |
7109 | id-expression or a class member access, FALSE when it was parsed as | |
7110 | a full expression. */ | |
a77f94e2 | 7111 | |
3ad6a8e1 | 7112 | tree |
5b97c77f JM |
7113 | finish_decltype_type (tree expr, bool id_expression_or_member_access_p, |
7114 | tsubst_flags_t complain) | |
3ad6a8e1 | 7115 | { |
056dd1af | 7116 | tree type = NULL_TREE; |
3ad6a8e1 | 7117 | |
e4fd5b87 DG |
7118 | if (!expr || error_operand_p (expr)) |
7119 | return error_mark_node; | |
7120 | ||
7a547b93 JJ |
7121 | if (TYPE_P (expr) |
7122 | || TREE_CODE (expr) == TYPE_DECL | |
7123 | || (TREE_CODE (expr) == BIT_NOT_EXPR | |
7124 | && TYPE_P (TREE_OPERAND (expr, 0)))) | |
7125 | { | |
5b97c77f JM |
7126 | if (complain & tf_error) |
7127 | error ("argument to decltype must be an expression"); | |
7a547b93 JJ |
7128 | return error_mark_node; |
7129 | } | |
7130 | ||
2c905502 JM |
7131 | /* Depending on the resolution of DR 1172, we may later need to distinguish |
7132 | instantiation-dependent but not type-dependent expressions so that, say, | |
7133 | A<decltype(sizeof(T))>::U doesn't require 'typename'. */ | |
7134 | if (instantiation_dependent_expression_p (expr)) | |
3ad6a8e1 | 7135 | { |
9e1e64ec | 7136 | type = cxx_make_type (DECLTYPE_TYPE); |
3ad6a8e1 DG |
7137 | DECLTYPE_TYPE_EXPR (type) = expr; |
7138 | DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P (type) | |
7139 | = id_expression_or_member_access_p; | |
7140 | SET_TYPE_STRUCTURAL_EQUALITY (type); | |
7141 | ||
7142 | return type; | |
7143 | } | |
7144 | ||
7145 | /* The type denoted by decltype(e) is defined as follows: */ | |
7146 | ||
ccb05613 | 7147 | expr = resolve_nondeduced_context (expr); |
48326487 | 7148 | |
6c74ff23 JM |
7149 | if (invalid_nonstatic_memfn_p (expr, complain)) |
7150 | return error_mark_node; | |
7151 | ||
6cdb1428 JM |
7152 | if (type_unknown_p (expr)) |
7153 | { | |
7154 | if (complain & tf_error) | |
7155 | error ("decltype cannot resolve address of overloaded function"); | |
7156 | return error_mark_node; | |
7157 | } | |
7158 | ||
48326487 JM |
7159 | /* To get the size of a static data member declared as an array of |
7160 | unknown bound, we need to instantiate it. */ | |
5a6ccc94 | 7161 | if (VAR_P (expr) |
48326487 JM |
7162 | && VAR_HAD_UNKNOWN_BOUND (expr) |
7163 | && DECL_TEMPLATE_INSTANTIATION (expr)) | |
7164 | instantiate_decl (expr, /*defer_ok*/true, /*expl_inst_mem*/false); | |
7165 | ||
3ad6a8e1 DG |
7166 | if (id_expression_or_member_access_p) |
7167 | { | |
7168 | /* If e is an id-expression or a class member access (5.2.5 | |
7169 | [expr.ref]), decltype(e) is defined as the type of the entity | |
7170 | named by e. If there is no such entity, or e names a set of | |
7171 | overloaded functions, the program is ill-formed. */ | |
9dc6f476 | 7172 | if (identifier_p (expr)) |
3ad6a8e1 DG |
7173 | expr = lookup_name (expr); |
7174 | ||
591cb3cf | 7175 | if (INDIRECT_REF_P (expr)) |
3ad6a8e1 DG |
7176 | /* This can happen when the expression is, e.g., "a.b". Just |
7177 | look at the underlying operand. */ | |
7178 | expr = TREE_OPERAND (expr, 0); | |
7179 | ||
7180 | if (TREE_CODE (expr) == OFFSET_REF | |
cf3c30d3 JM |
7181 | || TREE_CODE (expr) == MEMBER_REF |
7182 | || TREE_CODE (expr) == SCOPE_REF) | |
3ad6a8e1 DG |
7183 | /* We're only interested in the field itself. If it is a |
7184 | BASELINK, we will need to see through it in the next | |
7185 | step. */ | |
7186 | expr = TREE_OPERAND (expr, 1); | |
7187 | ||
c5ce25ce | 7188 | if (BASELINK_P (expr)) |
6cdb1428 | 7189 | /* See through BASELINK nodes to the underlying function. */ |
3ad6a8e1 DG |
7190 | expr = BASELINK_FUNCTIONS (expr); |
7191 | ||
3ad6a8e1 DG |
7192 | switch (TREE_CODE (expr)) |
7193 | { | |
7194 | case FIELD_DECL: | |
e76d7cc7 | 7195 | if (DECL_BIT_FIELD_TYPE (expr)) |
3ad6a8e1 DG |
7196 | { |
7197 | type = DECL_BIT_FIELD_TYPE (expr); | |
7198 | break; | |
7199 | } | |
7200 | /* Fall through for fields that aren't bitfields. */ | |
7201 | ||
7202 | case FUNCTION_DECL: | |
7203 | case VAR_DECL: | |
7204 | case CONST_DECL: | |
7205 | case PARM_DECL: | |
7206 | case RESULT_DECL: | |
088d4f95 | 7207 | case TEMPLATE_PARM_INDEX: |
03a904b5 | 7208 | expr = mark_type_use (expr); |
3ad6a8e1 DG |
7209 | type = TREE_TYPE (expr); |
7210 | break; | |
7211 | ||
7212 | case ERROR_MARK: | |
7213 | type = error_mark_node; | |
7214 | break; | |
7215 | ||
7216 | case COMPONENT_REF: | |
4882d82a | 7217 | case COMPOUND_EXPR: |
03a904b5 | 7218 | mark_type_use (expr); |
3ad6a8e1 DG |
7219 | type = is_bitfield_expr_with_lowered_type (expr); |
7220 | if (!type) | |
7221 | type = TREE_TYPE (TREE_OPERAND (expr, 1)); | |
7222 | break; | |
7223 | ||
7224 | case BIT_FIELD_REF: | |
7225 | gcc_unreachable (); | |
7226 | ||
7227 | case INTEGER_CST: | |
8733916b | 7228 | case PTRMEM_CST: |
3ad6a8e1 | 7229 | /* We can get here when the id-expression refers to an |
8733916b | 7230 | enumerator or non-type template parameter. */ |
3ad6a8e1 DG |
7231 | type = TREE_TYPE (expr); |
7232 | break; | |
7233 | ||
7234 | default: | |
57c16a5e PC |
7235 | /* Handle instantiated template non-type arguments. */ |
7236 | type = TREE_TYPE (expr); | |
7237 | break; | |
3ad6a8e1 DG |
7238 | } |
7239 | } | |
7240 | else | |
7241 | { | |
c1e41527 JM |
7242 | /* Within a lambda-expression: |
7243 | ||
7244 | Every occurrence of decltype((x)) where x is a possibly | |
7245 | parenthesized id-expression that names an entity of | |
7246 | automatic storage duration is treated as if x were | |
7247 | transformed into an access to a corresponding data member | |
7248 | of the closure type that would have been declared if x | |
7249 | were a use of the denoted entity. */ | |
7250 | if (outer_automatic_var_p (expr) | |
7251 | && current_function_decl | |
7252 | && LAMBDA_FUNCTION_P (current_function_decl)) | |
7253 | type = capture_decltype (expr); | |
7254 | else if (error_operand_p (expr)) | |
7255 | type = error_mark_node; | |
7256 | else if (expr == current_class_ptr) | |
7257 | /* If the expression is just "this", we want the | |
7258 | cv-unqualified pointer for the "this" type. */ | |
7259 | type = TYPE_MAIN_VARIANT (TREE_TYPE (expr)); | |
7260 | else | |
7261 | { | |
7262 | /* Otherwise, where T is the type of e, if e is an lvalue, | |
7263 | decltype(e) is defined as T&; if an xvalue, T&&; otherwise, T. */ | |
7264 | cp_lvalue_kind clk = lvalue_kind (expr); | |
7265 | type = unlowered_expr_type (expr); | |
7266 | gcc_assert (TREE_CODE (type) != REFERENCE_TYPE); | |
7cea661c MG |
7267 | |
7268 | /* For vector types, pick a non-opaque variant. */ | |
7269 | if (TREE_CODE (type) == VECTOR_TYPE) | |
7270 | type = strip_typedefs (type); | |
7271 | ||
c1e41527 JM |
7272 | if (clk != clk_none && !(clk & clk_class)) |
7273 | type = cp_build_reference_type (type, (clk & clk_rvalueref)); | |
7274 | } | |
3ad6a8e1 DG |
7275 | } |
7276 | ||
3ad6a8e1 DG |
7277 | return type; |
7278 | } | |
cf22909c | 7279 | |
b29441ec PC |
7280 | /* Called from trait_expr_value to evaluate either __has_nothrow_assign or |
7281 | __has_nothrow_copy, depending on assign_p. */ | |
cb68ec50 PC |
7282 | |
7283 | static bool | |
b29441ec | 7284 | classtype_has_nothrow_assign_or_copy_p (tree type, bool assign_p) |
cb68ec50 | 7285 | { |
b29441ec | 7286 | tree fns; |
cb68ec50 | 7287 | |
b29441ec PC |
7288 | if (assign_p) |
7289 | { | |
7290 | int ix; | |
7291 | ix = lookup_fnfields_1 (type, ansi_assopname (NOP_EXPR)); | |
7292 | if (ix < 0) | |
cb68ec50 | 7293 | return false; |
9771b263 | 7294 | fns = (*CLASSTYPE_METHOD_VEC (type))[ix]; |
b29441ec | 7295 | } |
066ec0a4 | 7296 | else if (TYPE_HAS_COPY_CTOR (type)) |
b29441ec PC |
7297 | { |
7298 | /* If construction of the copy constructor was postponed, create | |
7299 | it now. */ | |
7300 | if (CLASSTYPE_LAZY_COPY_CTOR (type)) | |
7301 | lazily_declare_fn (sfk_copy_constructor, type); | |
d5f4eddd JM |
7302 | if (CLASSTYPE_LAZY_MOVE_CTOR (type)) |
7303 | lazily_declare_fn (sfk_move_constructor, type); | |
b29441ec | 7304 | fns = CLASSTYPE_CONSTRUCTORS (type); |
cb68ec50 PC |
7305 | } |
7306 | else | |
7307 | return false; | |
7308 | ||
b29441ec | 7309 | for (; fns; fns = OVL_NEXT (fns)) |
279086c3 PC |
7310 | { |
7311 | tree fn = OVL_CURRENT (fns); | |
7312 | ||
7313 | if (assign_p) | |
7314 | { | |
7315 | if (copy_fn_p (fn) == 0) | |
7316 | continue; | |
7317 | } | |
7318 | else if (copy_fn_p (fn) <= 0) | |
7319 | continue; | |
7320 | ||
ba9146c1 | 7321 | maybe_instantiate_noexcept (fn); |
279086c3 PC |
7322 | if (!TYPE_NOTHROW_P (TREE_TYPE (fn))) |
7323 | return false; | |
7324 | } | |
b29441ec | 7325 | |
cb68ec50 PC |
7326 | return true; |
7327 | } | |
7328 | ||
7329 | /* Actually evaluates the trait. */ | |
7330 | ||
7331 | static bool | |
7332 | trait_expr_value (cp_trait_kind kind, tree type1, tree type2) | |
7333 | { | |
7334 | enum tree_code type_code1; | |
7335 | tree t; | |
7336 | ||
7337 | type_code1 = TREE_CODE (type1); | |
7338 | ||
7339 | switch (kind) | |
7340 | { | |
7341 | case CPTK_HAS_NOTHROW_ASSIGN: | |
c32097d8 | 7342 | type1 = strip_array_types (type1); |
b29441ec PC |
7343 | return (!CP_TYPE_CONST_P (type1) && type_code1 != REFERENCE_TYPE |
7344 | && (trait_expr_value (CPTK_HAS_TRIVIAL_ASSIGN, type1, type2) | |
7345 | || (CLASS_TYPE_P (type1) | |
7346 | && classtype_has_nothrow_assign_or_copy_p (type1, | |
7347 | true)))); | |
cb68ec50 PC |
7348 | |
7349 | case CPTK_HAS_TRIVIAL_ASSIGN: | |
c32097d8 JM |
7350 | /* ??? The standard seems to be missing the "or array of such a class |
7351 | type" wording for this trait. */ | |
7352 | type1 = strip_array_types (type1); | |
cb68ec50 | 7353 | return (!CP_TYPE_CONST_P (type1) && type_code1 != REFERENCE_TYPE |
c32097d8 | 7354 | && (trivial_type_p (type1) |
cb68ec50 | 7355 | || (CLASS_TYPE_P (type1) |
066ec0a4 | 7356 | && TYPE_HAS_TRIVIAL_COPY_ASSIGN (type1)))); |
cb68ec50 PC |
7357 | |
7358 | case CPTK_HAS_NOTHROW_CONSTRUCTOR: | |
7359 | type1 = strip_array_types (type1); | |
7360 | return (trait_expr_value (CPTK_HAS_TRIVIAL_CONSTRUCTOR, type1, type2) | |
7361 | || (CLASS_TYPE_P (type1) | |
ac177431 | 7362 | && (t = locate_ctor (type1)) |
ffabb761 JM |
7363 | && (maybe_instantiate_noexcept (t), |
7364 | TYPE_NOTHROW_P (TREE_TYPE (t))))); | |
cb68ec50 PC |
7365 | |
7366 | case CPTK_HAS_TRIVIAL_CONSTRUCTOR: | |
7367 | type1 = strip_array_types (type1); | |
c32097d8 | 7368 | return (trivial_type_p (type1) |
cb68ec50 PC |
7369 | || (CLASS_TYPE_P (type1) && TYPE_HAS_TRIVIAL_DFLT (type1))); |
7370 | ||
7371 | case CPTK_HAS_NOTHROW_COPY: | |
c32097d8 | 7372 | type1 = strip_array_types (type1); |
cb68ec50 PC |
7373 | return (trait_expr_value (CPTK_HAS_TRIVIAL_COPY, type1, type2) |
7374 | || (CLASS_TYPE_P (type1) | |
b29441ec | 7375 | && classtype_has_nothrow_assign_or_copy_p (type1, false))); |
cb68ec50 PC |
7376 | |
7377 | case CPTK_HAS_TRIVIAL_COPY: | |
c32097d8 JM |
7378 | /* ??? The standard seems to be missing the "or array of such a class |
7379 | type" wording for this trait. */ | |
7380 | type1 = strip_array_types (type1); | |
7381 | return (trivial_type_p (type1) || type_code1 == REFERENCE_TYPE | |
066ec0a4 | 7382 | || (CLASS_TYPE_P (type1) && TYPE_HAS_TRIVIAL_COPY_CTOR (type1))); |
cb68ec50 PC |
7383 | |
7384 | case CPTK_HAS_TRIVIAL_DESTRUCTOR: | |
7385 | type1 = strip_array_types (type1); | |
c32097d8 | 7386 | return (trivial_type_p (type1) || type_code1 == REFERENCE_TYPE |
cb68ec50 PC |
7387 | || (CLASS_TYPE_P (type1) |
7388 | && TYPE_HAS_TRIVIAL_DESTRUCTOR (type1))); | |
7389 | ||
7390 | case CPTK_HAS_VIRTUAL_DESTRUCTOR: | |
46408846 | 7391 | return type_has_virtual_destructor (type1); |
cb68ec50 PC |
7392 | |
7393 | case CPTK_IS_ABSTRACT: | |
94ccc95d | 7394 | return (ABSTRACT_CLASS_TYPE_P (type1)); |
cb68ec50 PC |
7395 | |
7396 | case CPTK_IS_BASE_OF: | |
7397 | return (NON_UNION_CLASS_TYPE_P (type1) && NON_UNION_CLASS_TYPE_P (type2) | |
1f872df7 PC |
7398 | && (same_type_ignoring_top_level_qualifiers_p (type1, type2) |
7399 | || DERIVED_FROM_P (type1, type2))); | |
cb68ec50 PC |
7400 | |
7401 | case CPTK_IS_CLASS: | |
7402 | return (NON_UNION_CLASS_TYPE_P (type1)); | |
7403 | ||
cb68ec50 PC |
7404 | case CPTK_IS_EMPTY: |
7405 | return (NON_UNION_CLASS_TYPE_P (type1) && CLASSTYPE_EMPTY_P (type1)); | |
7406 | ||
7407 | case CPTK_IS_ENUM: | |
7408 | return (type_code1 == ENUMERAL_TYPE); | |
7409 | ||
b3908fcc JW |
7410 | case CPTK_IS_FINAL: |
7411 | return (CLASS_TYPE_P (type1) && CLASSTYPE_FINAL (type1)); | |
7412 | ||
3c0d13bf PC |
7413 | case CPTK_IS_LITERAL_TYPE: |
7414 | return (literal_type_p (type1)); | |
7415 | ||
cb68ec50 PC |
7416 | case CPTK_IS_POD: |
7417 | return (pod_type_p (type1)); | |
7418 | ||
7419 | case CPTK_IS_POLYMORPHIC: | |
7420 | return (CLASS_TYPE_P (type1) && TYPE_POLYMORPHIC_P (type1)); | |
7421 | ||
c32097d8 JM |
7422 | case CPTK_IS_STD_LAYOUT: |
7423 | return (std_layout_type_p (type1)); | |
7424 | ||
7425 | case CPTK_IS_TRIVIAL: | |
7426 | return (trivial_type_p (type1)); | |
7427 | ||
dd5d5481 JM |
7428 | case CPTK_IS_TRIVIALLY_ASSIGNABLE: |
7429 | return is_trivially_xible (MODIFY_EXPR, type1, type2); | |
7430 | ||
7431 | case CPTK_IS_TRIVIALLY_CONSTRUCTIBLE: | |
7432 | return is_trivially_xible (INIT_EXPR, type1, type2); | |
7433 | ||
b752325e JM |
7434 | case CPTK_IS_TRIVIALLY_COPYABLE: |
7435 | return (trivially_copyable_p (type1)); | |
7436 | ||
cb68ec50 PC |
7437 | case CPTK_IS_UNION: |
7438 | return (type_code1 == UNION_TYPE); | |
7439 | ||
7440 | default: | |
7441 | gcc_unreachable (); | |
7442 | return false; | |
7443 | } | |
7444 | } | |
7445 | ||
4f75413f | 7446 | /* If TYPE is an array of unknown bound, or (possibly cv-qualified) |
dd5d5481 | 7447 | void, or a complete type, returns true, otherwise false. */ |
ff284b4b | 7448 | |
dd5d5481 | 7449 | static bool |
ff284b4b PC |
7450 | check_trait_type (tree type) |
7451 | { | |
dd5d5481 JM |
7452 | if (type == NULL_TREE) |
7453 | return true; | |
7454 | ||
7455 | if (TREE_CODE (type) == TREE_LIST) | |
7456 | return (check_trait_type (TREE_VALUE (type)) | |
7457 | && check_trait_type (TREE_CHAIN (type))); | |
7458 | ||
f94ae987 JM |
7459 | if (TREE_CODE (type) == ARRAY_TYPE && !TYPE_DOMAIN (type) |
7460 | && COMPLETE_TYPE_P (TREE_TYPE (type))) | |
dd5d5481 | 7461 | return true; |
ff284b4b PC |
7462 | |
7463 | if (VOID_TYPE_P (type)) | |
dd5d5481 | 7464 | return true; |
ff284b4b | 7465 | |
dd5d5481 | 7466 | return !!complete_type_or_else (strip_array_types (type), NULL_TREE); |
ff284b4b PC |
7467 | } |
7468 | ||
cb68ec50 PC |
7469 | /* Process a trait expression. */ |
7470 | ||
7471 | tree | |
7472 | finish_trait_expr (cp_trait_kind kind, tree type1, tree type2) | |
7473 | { | |
cb68ec50 | 7474 | if (type1 == error_mark_node |
dd5d5481 | 7475 | || type2 == error_mark_node) |
cb68ec50 PC |
7476 | return error_mark_node; |
7477 | ||
7478 | if (processing_template_decl) | |
7479 | { | |
7480 | tree trait_expr = make_node (TRAIT_EXPR); | |
7481 | TREE_TYPE (trait_expr) = boolean_type_node; | |
7482 | TRAIT_EXPR_TYPE1 (trait_expr) = type1; | |
7483 | TRAIT_EXPR_TYPE2 (trait_expr) = type2; | |
7484 | TRAIT_EXPR_KIND (trait_expr) = kind; | |
7485 | return trait_expr; | |
7486 | } | |
7487 | ||
ff284b4b | 7488 | switch (kind) |
cb68ec50 | 7489 | { |
ff284b4b PC |
7490 | case CPTK_HAS_NOTHROW_ASSIGN: |
7491 | case CPTK_HAS_TRIVIAL_ASSIGN: | |
7492 | case CPTK_HAS_NOTHROW_CONSTRUCTOR: | |
7493 | case CPTK_HAS_TRIVIAL_CONSTRUCTOR: | |
7494 | case CPTK_HAS_NOTHROW_COPY: | |
7495 | case CPTK_HAS_TRIVIAL_COPY: | |
7496 | case CPTK_HAS_TRIVIAL_DESTRUCTOR: | |
7497 | case CPTK_HAS_VIRTUAL_DESTRUCTOR: | |
7498 | case CPTK_IS_ABSTRACT: | |
7499 | case CPTK_IS_EMPTY: | |
b3908fcc | 7500 | case CPTK_IS_FINAL: |
3c0d13bf | 7501 | case CPTK_IS_LITERAL_TYPE: |
ff284b4b PC |
7502 | case CPTK_IS_POD: |
7503 | case CPTK_IS_POLYMORPHIC: | |
c32097d8 JM |
7504 | case CPTK_IS_STD_LAYOUT: |
7505 | case CPTK_IS_TRIVIAL: | |
b752325e | 7506 | case CPTK_IS_TRIVIALLY_COPYABLE: |
ff284b4b | 7507 | if (!check_trait_type (type1)) |
4f75413f | 7508 | return error_mark_node; |
ff284b4b | 7509 | break; |
dd5d5481 JM |
7510 | |
7511 | case CPTK_IS_TRIVIALLY_ASSIGNABLE: | |
7512 | case CPTK_IS_TRIVIALLY_CONSTRUCTIBLE: | |
7513 | if (!check_trait_type (type1) | |
7514 | || !check_trait_type (type2)) | |
7515 | return error_mark_node; | |
7516 | break; | |
ff284b4b PC |
7517 | |
7518 | case CPTK_IS_BASE_OF: | |
7519 | if (NON_UNION_CLASS_TYPE_P (type1) && NON_UNION_CLASS_TYPE_P (type2) | |
7520 | && !same_type_ignoring_top_level_qualifiers_p (type1, type2) | |
4f75413f PC |
7521 | && !complete_type_or_else (type2, NULL_TREE)) |
7522 | /* We already issued an error. */ | |
7523 | return error_mark_node; | |
ff284b4b PC |
7524 | break; |
7525 | ||
7526 | case CPTK_IS_CLASS: | |
7527 | case CPTK_IS_ENUM: | |
7528 | case CPTK_IS_UNION: | |
7529 | break; | |
7530 | ||
ff284b4b PC |
7531 | default: |
7532 | gcc_unreachable (); | |
cb68ec50 PC |
7533 | } |
7534 | ||
7535 | return (trait_expr_value (kind, type1, type2) | |
7536 | ? boolean_true_node : boolean_false_node); | |
7537 | } | |
7538 | ||
6ec637a4 JJ |
7539 | /* Do-nothing variants of functions to handle pragma FLOAT_CONST_DECIMAL64, |
7540 | which is ignored for C++. */ | |
7541 | ||
7542 | void | |
7543 | set_float_const_decimal64 (void) | |
7544 | { | |
7545 | } | |
7546 | ||
7547 | void | |
7548 | clear_float_const_decimal64 (void) | |
7549 | { | |
7550 | } | |
7551 | ||
7552 | bool | |
7553 | float_const_decimal64_p (void) | |
7554 | { | |
7555 | return 0; | |
7556 | } | |
7557 | ||
3b49d762 | 7558 | \f |
2d76680f | 7559 | /* Return true if T designates the implied `this' parameter. */ |
7ecbca9d GDR |
7560 | |
7561 | bool | |
2d76680f | 7562 | is_this_parameter (tree t) |
66e61a34 | 7563 | { |
2d76680f | 7564 | if (!DECL_P (t) || DECL_NAME (t) != this_identifier) |
66e61a34 | 7565 | return false; |
2d76680f | 7566 | gcc_assert (TREE_CODE (t) == PARM_DECL || is_capture_proxy (t)); |
fbf833b7 PC |
7567 | return true; |
7568 | } | |
7569 | ||
852497a3 | 7570 | /* Insert the deduced return type for an auto function. */ |
d5f4eddd JM |
7571 | |
7572 | void | |
852497a3 | 7573 | apply_deduced_return_type (tree fco, tree return_type) |
d5f4eddd | 7574 | { |
d5f4eddd JM |
7575 | tree result; |
7576 | ||
d5f4eddd JM |
7577 | if (return_type == error_mark_node) |
7578 | return; | |
7579 | ||
852497a3 JM |
7580 | if (LAMBDA_FUNCTION_P (fco)) |
7581 | { | |
7582 | tree lambda = CLASSTYPE_LAMBDA_EXPR (current_class_type); | |
7583 | LAMBDA_EXPR_RETURN_TYPE (lambda) = return_type; | |
7584 | } | |
7585 | ||
7586 | if (DECL_CONV_FN_P (fco)) | |
7587 | DECL_NAME (fco) = mangle_conv_op_name_for_type (return_type); | |
7588 | ||
643d4cd6 | 7589 | TREE_TYPE (fco) = change_return_type (return_type, TREE_TYPE (fco)); |
d5f4eddd JM |
7590 | |
7591 | result = DECL_RESULT (fco); | |
7592 | if (result == NULL_TREE) | |
7593 | return; | |
852497a3 JM |
7594 | if (TREE_TYPE (result) == return_type) |
7595 | return; | |
d5f4eddd JM |
7596 | |
7597 | /* We already have a DECL_RESULT from start_preparsed_function. | |
7598 | Now we need to redo the work it and allocate_struct_function | |
7599 | did to reflect the new type. */ | |
9b8662c2 | 7600 | gcc_assert (current_function_decl == fco); |
d5f4eddd JM |
7601 | result = build_decl (input_location, RESULT_DECL, NULL_TREE, |
7602 | TYPE_MAIN_VARIANT (return_type)); | |
7603 | DECL_ARTIFICIAL (result) = 1; | |
7604 | DECL_IGNORED_P (result) = 1; | |
7605 | cp_apply_type_quals_to_decl (cp_type_quals (return_type), | |
7606 | result); | |
7607 | ||
7608 | DECL_RESULT (fco) = result; | |
7609 | ||
852497a3 | 7610 | if (!processing_template_decl) |
d5f4eddd | 7611 | { |
3734964f DT |
7612 | if (!VOID_TYPE_P (TREE_TYPE (result))) |
7613 | complete_type_or_else (TREE_TYPE (result), NULL_TREE); | |
852497a3 | 7614 | bool aggr = aggregate_value_p (result, fco); |
d5f4eddd | 7615 | #ifdef PCC_STATIC_STRUCT_RETURN |
852497a3 | 7616 | cfun->returns_pcc_struct = aggr; |
d5f4eddd | 7617 | #endif |
852497a3 | 7618 | cfun->returns_struct = aggr; |
d5f4eddd JM |
7619 | } |
7620 | ||
7621 | } | |
7622 | ||
7623 | /* DECL is a local variable or parameter from the surrounding scope of a | |
7624 | lambda-expression. Returns the decltype for a use of the capture field | |
7625 | for DECL even if it hasn't been captured yet. */ | |
7626 | ||
7627 | static tree | |
7628 | capture_decltype (tree decl) | |
7629 | { | |
7630 | tree lam = CLASSTYPE_LAMBDA_EXPR (DECL_CONTEXT (current_function_decl)); | |
7631 | /* FIXME do lookup instead of list walk? */ | |
7632 | tree cap = value_member (decl, LAMBDA_EXPR_CAPTURE_LIST (lam)); | |
7633 | tree type; | |
7634 | ||
7635 | if (cap) | |
7636 | type = TREE_TYPE (TREE_PURPOSE (cap)); | |
7637 | else | |
7638 | switch (LAMBDA_EXPR_DEFAULT_CAPTURE_MODE (lam)) | |
7639 | { | |
7640 | case CPLD_NONE: | |
7641 | error ("%qD is not captured", decl); | |
7642 | return error_mark_node; | |
7643 | ||
7644 | case CPLD_COPY: | |
7645 | type = TREE_TYPE (decl); | |
7646 | if (TREE_CODE (type) == REFERENCE_TYPE | |
7647 | && TREE_CODE (TREE_TYPE (type)) != FUNCTION_TYPE) | |
7648 | type = TREE_TYPE (type); | |
7649 | break; | |
7650 | ||
7651 | case CPLD_REFERENCE: | |
7652 | type = TREE_TYPE (decl); | |
7653 | if (TREE_CODE (type) != REFERENCE_TYPE) | |
7654 | type = build_reference_type (TREE_TYPE (decl)); | |
7655 | break; | |
7656 | ||
7657 | default: | |
7658 | gcc_unreachable (); | |
7659 | } | |
7660 | ||
7661 | if (TREE_CODE (type) != REFERENCE_TYPE) | |
7662 | { | |
7663 | if (!LAMBDA_EXPR_MUTABLE_P (lam)) | |
a3360e77 | 7664 | type = cp_build_qualified_type (type, (cp_type_quals (type) |
d5f4eddd JM |
7665 | |TYPE_QUAL_CONST)); |
7666 | type = build_reference_type (type); | |
7667 | } | |
7668 | return type; | |
7669 | } | |
7670 | ||
cf22909c | 7671 | #include "gt-cp-semantics.h" |