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
4 and during the instantiation of template functions.
6 Copyright (C) 1998-2018 Free Software Foundation, Inc.
7 Written by Mark Mitchell (mmitchell@usa.net) based on code found
8 formerly in parse.y and pt.c.
10 This file is part of GCC.
12 GCC is free software; you can redistribute it and/or modify it
13 under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3, or (at your option)
17 GCC is distributed in the hope that it will be useful, but
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.
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/>. */
28 #include "coretypes.h"
32 #include "stringpool.h"
36 #include "stor-layout.h"
37 #include "c-family/c-objc.h"
38 #include "tree-inline.h"
40 #include "tree-iterator.h"
41 #include "omp-general.h"
43 #include "stringpool.h"
45 #include "gomp-constants.h"
48 /* There routines provide a modular interface to perform many parsing
49 operations. They may therefore be used during actual parsing, or
50 during template instantiation, which may be regarded as a
51 degenerate form of parsing. */
53 static tree
maybe_convert_cond (tree
);
54 static tree
finalize_nrv_r (tree
*, int *, void *);
55 static tree
capture_decltype (tree
);
57 /* Used for OpenMP non-static data member privatization. */
59 static hash_map
<tree
, tree
> *omp_private_member_map
;
60 static vec
<tree
> omp_private_member_vec
;
61 static bool omp_private_member_ignore_next
;
64 /* Deferred Access Checking Overview
65 ---------------------------------
67 Most C++ expressions and declarations require access checking
68 to be performed during parsing. However, in several cases,
69 this has to be treated differently.
71 For member declarations, access checking has to be deferred
72 until more information about the declaration is known. For
84 When we are parsing the function return type `A::X', we don't
85 really know if this is allowed until we parse the function name.
87 Furthermore, some contexts require that access checking is
88 never performed at all. These include class heads, and template
91 Typical use of access checking functions is described here:
93 1. When we enter a context that requires certain access checking
94 mode, the function `push_deferring_access_checks' is called with
95 DEFERRING argument specifying the desired mode. Access checking
96 may be performed immediately (dk_no_deferred), deferred
97 (dk_deferred), or not performed (dk_no_check).
99 2. When a declaration such as a type, or a variable, is encountered,
100 the function `perform_or_defer_access_check' is called. It
101 maintains a vector of all deferred checks.
103 3. The global `current_class_type' or `current_function_decl' is then
104 setup by the parser. `enforce_access' relies on these information
107 4. Upon exiting the context mentioned in step 1,
108 `perform_deferred_access_checks' is called to check all declaration
109 stored in the vector. `pop_deferring_access_checks' is then
110 called to restore the previous access checking mode.
112 In case of parsing error, we simply call `pop_deferring_access_checks'
113 without `perform_deferred_access_checks'. */
115 struct GTY(()) deferred_access
{
116 /* A vector representing name-lookups for which we have deferred
117 checking access controls. We cannot check the accessibility of
118 names used in a decl-specifier-seq until we know what is being
119 declared because code like:
126 A::B* A::f() { return 0; }
128 is valid, even though `A::B' is not generally accessible. */
129 vec
<deferred_access_check
, va_gc
> * GTY(()) deferred_access_checks
;
131 /* The current mode of access checks. */
132 enum deferring_kind deferring_access_checks_kind
;
136 /* Data for deferred access checking. */
137 static GTY(()) vec
<deferred_access
, va_gc
> *deferred_access_stack
;
138 static GTY(()) unsigned deferred_access_no_check
;
140 /* Save the current deferred access states and start deferred
141 access checking iff DEFER_P is true. */
144 push_deferring_access_checks (deferring_kind deferring
)
146 /* For context like template instantiation, access checking
147 disabling applies to all nested context. */
148 if (deferred_access_no_check
|| deferring
== dk_no_check
)
149 deferred_access_no_check
++;
152 deferred_access e
= {NULL
, deferring
};
153 vec_safe_push (deferred_access_stack
, e
);
157 /* Save the current deferred access states and start deferred access
158 checking, continuing the set of deferred checks in CHECKS. */
161 reopen_deferring_access_checks (vec
<deferred_access_check
, va_gc
> * checks
)
163 push_deferring_access_checks (dk_deferred
);
164 if (!deferred_access_no_check
)
165 deferred_access_stack
->last().deferred_access_checks
= checks
;
168 /* Resume deferring access checks again after we stopped doing
172 resume_deferring_access_checks (void)
174 if (!deferred_access_no_check
)
175 deferred_access_stack
->last().deferring_access_checks_kind
= dk_deferred
;
178 /* Stop deferring access checks. */
181 stop_deferring_access_checks (void)
183 if (!deferred_access_no_check
)
184 deferred_access_stack
->last().deferring_access_checks_kind
= dk_no_deferred
;
187 /* Discard the current deferred access checks and restore the
191 pop_deferring_access_checks (void)
193 if (deferred_access_no_check
)
194 deferred_access_no_check
--;
196 deferred_access_stack
->pop ();
199 /* Returns a TREE_LIST representing the deferred checks.
200 The TREE_PURPOSE of each node is the type through which the
201 access occurred; the TREE_VALUE is the declaration named.
204 vec
<deferred_access_check
, va_gc
> *
205 get_deferred_access_checks (void)
207 if (deferred_access_no_check
)
210 return (deferred_access_stack
->last().deferred_access_checks
);
213 /* Take current deferred checks and combine with the
214 previous states if we also defer checks previously.
215 Otherwise perform checks now. */
218 pop_to_parent_deferring_access_checks (void)
220 if (deferred_access_no_check
)
221 deferred_access_no_check
--;
224 vec
<deferred_access_check
, va_gc
> *checks
;
225 deferred_access
*ptr
;
227 checks
= (deferred_access_stack
->last ().deferred_access_checks
);
229 deferred_access_stack
->pop ();
230 ptr
= &deferred_access_stack
->last ();
231 if (ptr
->deferring_access_checks_kind
== dk_no_deferred
)
234 perform_access_checks (checks
, tf_warning_or_error
);
238 /* Merge with parent. */
240 deferred_access_check
*chk
, *probe
;
242 FOR_EACH_VEC_SAFE_ELT (checks
, i
, chk
)
244 FOR_EACH_VEC_SAFE_ELT (ptr
->deferred_access_checks
, j
, probe
)
246 if (probe
->binfo
== chk
->binfo
&&
247 probe
->decl
== chk
->decl
&&
248 probe
->diag_decl
== chk
->diag_decl
)
251 /* Insert into parent's checks. */
252 vec_safe_push (ptr
->deferred_access_checks
, *chk
);
259 /* Perform the access checks in CHECKS. The TREE_PURPOSE of each node
260 is the BINFO indicating the qualifying scope used to access the
261 DECL node stored in the TREE_VALUE of the node. If CHECKS is empty
262 or we aren't in SFINAE context or all the checks succeed return TRUE,
266 perform_access_checks (vec
<deferred_access_check
, va_gc
> *checks
,
267 tsubst_flags_t complain
)
270 deferred_access_check
*chk
;
271 location_t loc
= input_location
;
277 FOR_EACH_VEC_SAFE_ELT (checks
, i
, chk
)
279 input_location
= chk
->loc
;
280 ok
&= enforce_access (chk
->binfo
, chk
->decl
, chk
->diag_decl
, complain
);
283 input_location
= loc
;
284 return (complain
& tf_error
) ? true : ok
;
287 /* Perform the deferred access checks.
289 After performing the checks, we still have to keep the list
290 `deferred_access_stack->deferred_access_checks' since we may want
291 to check access for them again later in a different context.
298 A::X A::a, x; // No error for `A::a', error for `x'
300 We have to perform deferred access of `A::X', first with `A::a',
301 next with `x'. Return value like perform_access_checks above. */
304 perform_deferred_access_checks (tsubst_flags_t complain
)
306 return perform_access_checks (get_deferred_access_checks (), complain
);
309 /* Defer checking the accessibility of DECL, when looked up in
310 BINFO. DIAG_DECL is the declaration to use to print diagnostics.
311 Return value like perform_access_checks above.
312 If non-NULL, report failures to AFI. */
315 perform_or_defer_access_check (tree binfo
, tree decl
, tree diag_decl
,
316 tsubst_flags_t complain
,
317 access_failure_info
*afi
)
320 deferred_access
*ptr
;
321 deferred_access_check
*chk
;
324 /* Exit if we are in a context that no access checking is performed.
326 if (deferred_access_no_check
)
329 gcc_assert (TREE_CODE (binfo
) == TREE_BINFO
);
331 ptr
= &deferred_access_stack
->last ();
333 /* If we are not supposed to defer access checks, just check now. */
334 if (ptr
->deferring_access_checks_kind
== dk_no_deferred
)
336 bool ok
= enforce_access (binfo
, decl
, diag_decl
, complain
, afi
);
337 return (complain
& tf_error
) ? true : ok
;
340 /* See if we are already going to perform this check. */
341 FOR_EACH_VEC_SAFE_ELT (ptr
->deferred_access_checks
, i
, chk
)
343 if (chk
->decl
== decl
&& chk
->binfo
== binfo
&&
344 chk
->diag_decl
== diag_decl
)
349 /* If not, record the check. */
350 deferred_access_check new_access
= {binfo
, decl
, diag_decl
, input_location
};
351 vec_safe_push (ptr
->deferred_access_checks
, new_access
);
356 /* Returns nonzero if the current statement is a full expression,
357 i.e. temporaries created during that statement should be destroyed
358 at the end of the statement. */
361 stmts_are_full_exprs_p (void)
363 return current_stmt_tree ()->stmts_are_full_exprs_p
;
366 /* T is a statement. Add it to the statement-tree. This is the C++
367 version. The C/ObjC frontends have a slightly different version of
373 enum tree_code code
= TREE_CODE (t
);
375 if (EXPR_P (t
) && code
!= LABEL_EXPR
)
377 if (!EXPR_HAS_LOCATION (t
))
378 SET_EXPR_LOCATION (t
, input_location
);
380 /* When we expand a statement-tree, we must know whether or not the
381 statements are full-expressions. We record that fact here. */
382 STMT_IS_FULL_EXPR_P (t
) = stmts_are_full_exprs_p ();
385 if (code
== LABEL_EXPR
|| code
== CASE_LABEL_EXPR
)
386 STATEMENT_LIST_HAS_LABEL (cur_stmt_list
) = 1;
388 /* Add T to the statement-tree. Non-side-effect statements need to be
389 recorded during statement expressions. */
390 gcc_checking_assert (!stmt_list_stack
->is_empty ());
391 append_to_statement_list_force (t
, &cur_stmt_list
);
396 /* Returns the stmt_tree to which statements are currently being added. */
399 current_stmt_tree (void)
402 ? &cfun
->language
->base
.x_stmt_tree
403 : &scope_chain
->x_stmt_tree
);
406 /* If statements are full expressions, wrap STMT in a CLEANUP_POINT_EXPR. */
409 maybe_cleanup_point_expr (tree expr
)
411 if (!processing_template_decl
&& stmts_are_full_exprs_p ())
412 expr
= fold_build_cleanup_point_expr (TREE_TYPE (expr
), expr
);
416 /* Like maybe_cleanup_point_expr except have the type of the new expression be
417 void so we don't need to create a temporary variable to hold the inner
418 expression. The reason why we do this is because the original type might be
419 an aggregate and we cannot create a temporary variable for that type. */
422 maybe_cleanup_point_expr_void (tree expr
)
424 if (!processing_template_decl
&& stmts_are_full_exprs_p ())
425 expr
= fold_build_cleanup_point_expr (void_type_node
, expr
);
431 /* Create a declaration statement for the declaration given by the DECL. */
434 add_decl_expr (tree decl
)
436 tree r
= build_stmt (DECL_SOURCE_LOCATION (decl
), DECL_EXPR
, decl
);
437 if (DECL_INITIAL (decl
)
438 || (DECL_SIZE (decl
) && TREE_SIDE_EFFECTS (DECL_SIZE (decl
))))
439 r
= maybe_cleanup_point_expr_void (r
);
443 /* Finish a scope. */
446 do_poplevel (tree stmt_list
)
450 if (stmts_are_full_exprs_p ())
451 block
= poplevel (kept_level_p (), 1, 0);
453 stmt_list
= pop_stmt_list (stmt_list
);
455 if (!processing_template_decl
)
457 stmt_list
= c_build_bind_expr (input_location
, block
, stmt_list
);
458 /* ??? See c_end_compound_stmt re statement expressions. */
464 /* Begin a new scope. */
467 do_pushlevel (scope_kind sk
)
469 tree ret
= push_stmt_list ();
470 if (stmts_are_full_exprs_p ())
471 begin_scope (sk
, NULL
);
475 /* Queue a cleanup. CLEANUP is an expression/statement to be executed
476 when the current scope is exited. EH_ONLY is true when this is not
477 meant to apply to normal control flow transfer. */
480 push_cleanup (tree decl
, tree cleanup
, bool eh_only
)
482 tree stmt
= build_stmt (input_location
, CLEANUP_STMT
, NULL
, cleanup
, decl
);
483 CLEANUP_EH_ONLY (stmt
) = eh_only
;
485 CLEANUP_BODY (stmt
) = push_stmt_list ();
488 /* Simple infinite loop tracking for -Wreturn-type. We keep a stack of all
489 the current loops, represented by 'NULL_TREE' if we've seen a possible
490 exit, and 'error_mark_node' if not. This is currently used only to
491 suppress the warning about a function with no return statements, and
492 therefore we don't bother noting returns as possible exits. We also
493 don't bother with gotos. */
496 begin_maybe_infinite_loop (tree cond
)
498 /* Only track this while parsing a function, not during instantiation. */
499 if (!cfun
|| (DECL_TEMPLATE_INSTANTIATION (current_function_decl
)
500 && !processing_template_decl
))
502 bool maybe_infinite
= true;
505 cond
= fold_non_dependent_expr (cond
);
506 maybe_infinite
= integer_nonzerop (cond
);
508 vec_safe_push (cp_function_chain
->infinite_loops
,
509 maybe_infinite
? error_mark_node
: NULL_TREE
);
513 /* A break is a possible exit for the current loop. */
516 break_maybe_infinite_loop (void)
520 cp_function_chain
->infinite_loops
->last() = NULL_TREE
;
523 /* If we reach the end of the loop without seeing a possible exit, we have
527 end_maybe_infinite_loop (tree cond
)
529 if (!cfun
|| (DECL_TEMPLATE_INSTANTIATION (current_function_decl
)
530 && !processing_template_decl
))
532 tree current
= cp_function_chain
->infinite_loops
->pop();
533 if (current
!= NULL_TREE
)
535 cond
= fold_non_dependent_expr (cond
);
536 if (integer_nonzerop (cond
))
537 current_function_infinite_loop
= 1;
542 /* Begin a conditional that might contain a declaration. When generating
543 normal code, we want the declaration to appear before the statement
544 containing the conditional. When generating template code, we want the
545 conditional to be rendered as the raw DECL_EXPR. */
548 begin_cond (tree
*cond_p
)
550 if (processing_template_decl
)
551 *cond_p
= push_stmt_list ();
554 /* Finish such a conditional. */
557 finish_cond (tree
*cond_p
, tree expr
)
559 if (processing_template_decl
)
561 tree cond
= pop_stmt_list (*cond_p
);
563 if (expr
== NULL_TREE
)
564 /* Empty condition in 'for'. */
565 gcc_assert (empty_expr_stmt_p (cond
));
566 else if (check_for_bare_parameter_packs (expr
))
567 expr
= error_mark_node
;
568 else if (!empty_expr_stmt_p (cond
))
569 expr
= build2 (COMPOUND_EXPR
, TREE_TYPE (expr
), cond
, expr
);
574 /* If *COND_P specifies a conditional with a declaration, transform the
577 for (; A x = 42;) { }
579 while (true) { A x = 42; if (!x) break; }
580 for (;;) { A x = 42; if (!x) break; }
581 The statement list for BODY will be empty if the conditional did
582 not declare anything. */
585 simplify_loop_decl_cond (tree
*cond_p
, tree body
)
589 if (!TREE_SIDE_EFFECTS (body
))
593 *cond_p
= boolean_true_node
;
595 if_stmt
= begin_if_stmt ();
596 cond
= cp_build_unary_op (TRUTH_NOT_EXPR
, cond
, false, tf_warning_or_error
);
597 finish_if_stmt_cond (cond
, if_stmt
);
598 finish_break_stmt ();
599 finish_then_clause (if_stmt
);
600 finish_if_stmt (if_stmt
);
603 /* Finish a goto-statement. */
606 finish_goto_stmt (tree destination
)
608 if (identifier_p (destination
))
609 destination
= lookup_label (destination
);
611 /* We warn about unused labels with -Wunused. That means we have to
612 mark the used labels as used. */
613 if (TREE_CODE (destination
) == LABEL_DECL
)
614 TREE_USED (destination
) = 1;
617 destination
= mark_rvalue_use (destination
);
618 if (!processing_template_decl
)
620 destination
= cp_convert (ptr_type_node
, destination
,
621 tf_warning_or_error
);
622 if (error_operand_p (destination
))
625 = fold_build_cleanup_point_expr (TREE_TYPE (destination
),
630 check_goto (destination
);
632 add_stmt (build_predict_expr (PRED_GOTO
, NOT_TAKEN
));
633 return add_stmt (build_stmt (input_location
, GOTO_EXPR
, destination
));
636 /* COND is the condition-expression for an if, while, etc.,
637 statement. Convert it to a boolean value, if appropriate.
638 In addition, verify sequence points if -Wsequence-point is enabled. */
641 maybe_convert_cond (tree cond
)
643 /* Empty conditions remain empty. */
647 /* Wait until we instantiate templates before doing conversion. */
648 if (processing_template_decl
)
651 if (warn_sequence_point
)
652 verify_sequence_points (cond
);
654 /* Do the conversion. */
655 cond
= convert_from_reference (cond
);
657 if (TREE_CODE (cond
) == MODIFY_EXPR
658 && !TREE_NO_WARNING (cond
)
661 warning_at (EXPR_LOC_OR_LOC (cond
, input_location
), OPT_Wparentheses
,
662 "suggest parentheses around assignment used as truth value");
663 TREE_NO_WARNING (cond
) = 1;
666 return condition_conversion (cond
);
669 /* Finish an expression-statement, whose EXPRESSION is as indicated. */
672 finish_expr_stmt (tree expr
)
675 location_t loc
= EXPR_LOCATION (expr
);
677 if (expr
!= NULL_TREE
)
679 /* If we ran into a problem, make sure we complained. */
680 gcc_assert (expr
!= error_mark_node
|| seen_error ());
682 if (!processing_template_decl
)
684 if (warn_sequence_point
)
685 verify_sequence_points (expr
);
686 expr
= convert_to_void (expr
, ICV_STATEMENT
, tf_warning_or_error
);
688 else if (!type_dependent_expression_p (expr
))
689 convert_to_void (build_non_dependent_expr (expr
), ICV_STATEMENT
,
690 tf_warning_or_error
);
692 if (check_for_bare_parameter_packs (expr
))
693 expr
= error_mark_node
;
695 /* Simplification of inner statement expressions, compound exprs,
696 etc can result in us already having an EXPR_STMT. */
697 if (TREE_CODE (expr
) != CLEANUP_POINT_EXPR
)
699 if (TREE_CODE (expr
) != EXPR_STMT
)
700 expr
= build_stmt (loc
, EXPR_STMT
, expr
);
701 expr
= maybe_cleanup_point_expr_void (expr
);
711 /* Begin an if-statement. Returns a newly created IF_STMT if
718 scope
= do_pushlevel (sk_cond
);
719 r
= build_stmt (input_location
, IF_STMT
, NULL_TREE
,
720 NULL_TREE
, NULL_TREE
, scope
);
721 current_binding_level
->this_entity
= r
;
722 begin_cond (&IF_COND (r
));
726 /* Process the COND of an if-statement, which may be given by
730 finish_if_stmt_cond (tree cond
, tree if_stmt
)
732 cond
= maybe_convert_cond (cond
);
733 if (IF_STMT_CONSTEXPR_P (if_stmt
)
734 && !type_dependent_expression_p (cond
)
735 && require_constant_expression (cond
)
736 && !instantiation_dependent_expression_p (cond
)
737 /* Wait until instantiation time, since only then COND has been
738 converted to bool. */
739 && TREE_TYPE (cond
) == boolean_type_node
)
741 cond
= instantiate_non_dependent_expr (cond
);
742 cond
= cxx_constant_value (cond
, NULL_TREE
);
744 finish_cond (&IF_COND (if_stmt
), cond
);
746 THEN_CLAUSE (if_stmt
) = push_stmt_list ();
750 /* Finish the then-clause of an if-statement, which may be given by
754 finish_then_clause (tree if_stmt
)
756 THEN_CLAUSE (if_stmt
) = pop_stmt_list (THEN_CLAUSE (if_stmt
));
760 /* Begin the else-clause of an if-statement. */
763 begin_else_clause (tree if_stmt
)
765 ELSE_CLAUSE (if_stmt
) = push_stmt_list ();
768 /* Finish the else-clause of an if-statement, which may be given by
772 finish_else_clause (tree if_stmt
)
774 ELSE_CLAUSE (if_stmt
) = pop_stmt_list (ELSE_CLAUSE (if_stmt
));
777 /* Finish an if-statement. */
780 finish_if_stmt (tree if_stmt
)
782 tree scope
= IF_SCOPE (if_stmt
);
783 IF_SCOPE (if_stmt
) = NULL
;
784 add_stmt (do_poplevel (scope
));
787 /* Begin a while-statement. Returns a newly created WHILE_STMT if
791 begin_while_stmt (void)
794 r
= build_stmt (input_location
, WHILE_STMT
, NULL_TREE
, NULL_TREE
);
796 WHILE_BODY (r
) = do_pushlevel (sk_block
);
797 begin_cond (&WHILE_COND (r
));
801 /* Process the COND of a while-statement, which may be given by
805 finish_while_stmt_cond (tree cond
, tree while_stmt
, bool ivdep
,
806 unsigned short unroll
)
808 cond
= maybe_convert_cond (cond
);
809 finish_cond (&WHILE_COND (while_stmt
), cond
);
810 begin_maybe_infinite_loop (cond
);
811 if (ivdep
&& cond
!= error_mark_node
)
812 WHILE_COND (while_stmt
) = build3 (ANNOTATE_EXPR
,
813 TREE_TYPE (WHILE_COND (while_stmt
)),
814 WHILE_COND (while_stmt
),
815 build_int_cst (integer_type_node
,
816 annot_expr_ivdep_kind
),
818 if (unroll
&& cond
!= error_mark_node
)
819 WHILE_COND (while_stmt
) = build3 (ANNOTATE_EXPR
,
820 TREE_TYPE (WHILE_COND (while_stmt
)),
821 WHILE_COND (while_stmt
),
822 build_int_cst (integer_type_node
,
823 annot_expr_unroll_kind
),
824 build_int_cst (integer_type_node
,
826 simplify_loop_decl_cond (&WHILE_COND (while_stmt
), WHILE_BODY (while_stmt
));
829 /* Finish a while-statement, which may be given by WHILE_STMT. */
832 finish_while_stmt (tree while_stmt
)
834 end_maybe_infinite_loop (boolean_true_node
);
835 WHILE_BODY (while_stmt
) = do_poplevel (WHILE_BODY (while_stmt
));
838 /* Begin a do-statement. Returns a newly created DO_STMT if
844 tree r
= build_stmt (input_location
, DO_STMT
, NULL_TREE
, NULL_TREE
);
845 begin_maybe_infinite_loop (boolean_true_node
);
847 DO_BODY (r
) = push_stmt_list ();
851 /* Finish the body of a do-statement, which may be given by DO_STMT. */
854 finish_do_body (tree do_stmt
)
856 tree body
= DO_BODY (do_stmt
) = pop_stmt_list (DO_BODY (do_stmt
));
858 if (TREE_CODE (body
) == STATEMENT_LIST
&& STATEMENT_LIST_TAIL (body
))
859 body
= STATEMENT_LIST_TAIL (body
)->stmt
;
861 if (IS_EMPTY_STMT (body
))
862 warning (OPT_Wempty_body
,
863 "suggest explicit braces around empty body in %<do%> statement");
866 /* Finish a do-statement, which may be given by DO_STMT, and whose
867 COND is as indicated. */
870 finish_do_stmt (tree cond
, tree do_stmt
, bool ivdep
, unsigned short unroll
)
872 cond
= maybe_convert_cond (cond
);
873 end_maybe_infinite_loop (cond
);
874 if (ivdep
&& cond
!= error_mark_node
)
875 cond
= build3 (ANNOTATE_EXPR
, TREE_TYPE (cond
), cond
,
876 build_int_cst (integer_type_node
, annot_expr_ivdep_kind
),
878 if (unroll
&& cond
!= error_mark_node
)
879 cond
= build3 (ANNOTATE_EXPR
, TREE_TYPE (cond
), cond
,
880 build_int_cst (integer_type_node
, annot_expr_unroll_kind
),
881 build_int_cst (integer_type_node
, unroll
));
882 DO_COND (do_stmt
) = cond
;
885 /* Finish a return-statement. The EXPRESSION returned, if any, is as
889 finish_return_stmt (tree expr
)
894 expr
= check_return_expr (expr
, &no_warning
);
896 if (error_operand_p (expr
)
897 || (flag_openmp
&& !check_omp_return ()))
899 /* Suppress -Wreturn-type for this function. */
900 if (warn_return_type
)
901 TREE_NO_WARNING (current_function_decl
) = true;
902 return error_mark_node
;
905 if (!processing_template_decl
)
907 if (warn_sequence_point
)
908 verify_sequence_points (expr
);
910 if (DECL_DESTRUCTOR_P (current_function_decl
)
911 || (DECL_CONSTRUCTOR_P (current_function_decl
)
912 && targetm
.cxx
.cdtor_returns_this ()))
914 /* Similarly, all destructors must run destructors for
915 base-classes before returning. So, all returns in a
916 destructor get sent to the DTOR_LABEL; finish_function emits
917 code to return a value there. */
918 return finish_goto_stmt (cdtor_label
);
922 r
= build_stmt (input_location
, RETURN_EXPR
, expr
);
923 TREE_NO_WARNING (r
) |= no_warning
;
924 r
= maybe_cleanup_point_expr_void (r
);
930 /* Begin the scope of a for-statement or a range-for-statement.
931 Both the returned trees are to be used in a call to
932 begin_for_stmt or begin_range_for_stmt. */
935 begin_for_scope (tree
*init
)
937 tree scope
= NULL_TREE
;
938 if (flag_new_for_scope
)
939 scope
= do_pushlevel (sk_for
);
941 if (processing_template_decl
)
942 *init
= push_stmt_list ();
949 /* Begin a for-statement. Returns a new FOR_STMT.
950 SCOPE and INIT should be the return of begin_for_scope,
954 begin_for_stmt (tree scope
, tree init
)
958 r
= build_stmt (input_location
, FOR_STMT
, NULL_TREE
, NULL_TREE
,
959 NULL_TREE
, NULL_TREE
, NULL_TREE
);
961 if (scope
== NULL_TREE
)
963 gcc_assert (!init
|| !flag_new_for_scope
);
965 scope
= begin_for_scope (&init
);
967 FOR_INIT_STMT (r
) = init
;
968 FOR_SCOPE (r
) = scope
;
973 /* Finish the init-statement of a for-statement, which may be
974 given by FOR_STMT. */
977 finish_init_stmt (tree for_stmt
)
979 if (processing_template_decl
)
980 FOR_INIT_STMT (for_stmt
) = pop_stmt_list (FOR_INIT_STMT (for_stmt
));
982 FOR_BODY (for_stmt
) = do_pushlevel (sk_block
);
983 begin_cond (&FOR_COND (for_stmt
));
986 /* Finish the COND of a for-statement, which may be given by
990 finish_for_cond (tree cond
, tree for_stmt
, bool ivdep
, unsigned short unroll
)
992 cond
= maybe_convert_cond (cond
);
993 finish_cond (&FOR_COND (for_stmt
), cond
);
994 begin_maybe_infinite_loop (cond
);
995 if (ivdep
&& cond
!= error_mark_node
)
996 FOR_COND (for_stmt
) = build3 (ANNOTATE_EXPR
,
997 TREE_TYPE (FOR_COND (for_stmt
)),
999 build_int_cst (integer_type_node
,
1000 annot_expr_ivdep_kind
),
1002 if (unroll
&& cond
!= error_mark_node
)
1003 FOR_COND (for_stmt
) = build3 (ANNOTATE_EXPR
,
1004 TREE_TYPE (FOR_COND (for_stmt
)),
1005 FOR_COND (for_stmt
),
1006 build_int_cst (integer_type_node
,
1007 annot_expr_unroll_kind
),
1008 build_int_cst (integer_type_node
,
1010 simplify_loop_decl_cond (&FOR_COND (for_stmt
), FOR_BODY (for_stmt
));
1013 /* Finish the increment-EXPRESSION in a for-statement, which may be
1014 given by FOR_STMT. */
1017 finish_for_expr (tree expr
, tree for_stmt
)
1021 /* If EXPR is an overloaded function, issue an error; there is no
1022 context available to use to perform overload resolution. */
1023 if (type_unknown_p (expr
))
1025 cxx_incomplete_type_error (expr
, TREE_TYPE (expr
));
1026 expr
= error_mark_node
;
1028 if (!processing_template_decl
)
1030 if (warn_sequence_point
)
1031 verify_sequence_points (expr
);
1032 expr
= convert_to_void (expr
, ICV_THIRD_IN_FOR
,
1033 tf_warning_or_error
);
1035 else if (!type_dependent_expression_p (expr
))
1036 convert_to_void (build_non_dependent_expr (expr
), ICV_THIRD_IN_FOR
,
1037 tf_warning_or_error
);
1038 expr
= maybe_cleanup_point_expr_void (expr
);
1039 if (check_for_bare_parameter_packs (expr
))
1040 expr
= error_mark_node
;
1041 FOR_EXPR (for_stmt
) = expr
;
1044 /* Finish the body of a for-statement, which may be given by
1045 FOR_STMT. The increment-EXPR for the loop must be
1047 It can also finish RANGE_FOR_STMT. */
1050 finish_for_stmt (tree for_stmt
)
1052 end_maybe_infinite_loop (boolean_true_node
);
1054 if (TREE_CODE (for_stmt
) == RANGE_FOR_STMT
)
1055 RANGE_FOR_BODY (for_stmt
) = do_poplevel (RANGE_FOR_BODY (for_stmt
));
1057 FOR_BODY (for_stmt
) = do_poplevel (FOR_BODY (for_stmt
));
1059 /* Pop the scope for the body of the loop. */
1060 if (flag_new_for_scope
)
1063 tree
*scope_ptr
= (TREE_CODE (for_stmt
) == RANGE_FOR_STMT
1064 ? &RANGE_FOR_SCOPE (for_stmt
)
1065 : &FOR_SCOPE (for_stmt
));
1068 add_stmt (do_poplevel (scope
));
1072 /* Begin a range-for-statement. Returns a new RANGE_FOR_STMT.
1073 SCOPE and INIT should be the return of begin_for_scope,
1075 To finish it call finish_for_stmt(). */
1078 begin_range_for_stmt (tree scope
, tree init
)
1082 begin_maybe_infinite_loop (boolean_false_node
);
1084 r
= build_stmt (input_location
, RANGE_FOR_STMT
,
1085 NULL_TREE
, NULL_TREE
, NULL_TREE
, NULL_TREE
, NULL_TREE
);
1087 if (scope
== NULL_TREE
)
1089 gcc_assert (!init
|| !flag_new_for_scope
);
1091 scope
= begin_for_scope (&init
);
1094 /* RANGE_FOR_STMTs do not use nor save the init tree, so we
1097 pop_stmt_list (init
);
1098 RANGE_FOR_SCOPE (r
) = scope
;
1103 /* Finish the head of a range-based for statement, which may
1104 be given by RANGE_FOR_STMT. DECL must be the declaration
1105 and EXPR must be the loop expression. */
1108 finish_range_for_decl (tree range_for_stmt
, tree decl
, tree expr
)
1110 RANGE_FOR_DECL (range_for_stmt
) = decl
;
1111 RANGE_FOR_EXPR (range_for_stmt
) = expr
;
1112 add_stmt (range_for_stmt
);
1113 RANGE_FOR_BODY (range_for_stmt
) = do_pushlevel (sk_block
);
1116 /* Finish a break-statement. */
1119 finish_break_stmt (void)
1121 /* In switch statements break is sometimes stylistically used after
1122 a return statement. This can lead to spurious warnings about
1123 control reaching the end of a non-void function when it is
1124 inlined. Note that we are calling block_may_fallthru with
1125 language specific tree nodes; this works because
1126 block_may_fallthru returns true when given something it does not
1128 if (!block_may_fallthru (cur_stmt_list
))
1131 return add_stmt (build_stmt (input_location
, BREAK_STMT
));
1134 /* Finish a continue-statement. */
1137 finish_continue_stmt (void)
1139 return add_stmt (build_stmt (input_location
, CONTINUE_STMT
));
1142 /* Begin a switch-statement. Returns a new SWITCH_STMT if
1146 begin_switch_stmt (void)
1150 scope
= do_pushlevel (sk_cond
);
1151 r
= build_stmt (input_location
, SWITCH_STMT
, NULL_TREE
, NULL_TREE
, NULL_TREE
, scope
);
1153 begin_cond (&SWITCH_STMT_COND (r
));
1158 /* Finish the cond of a switch-statement. */
1161 finish_switch_cond (tree cond
, tree switch_stmt
)
1163 tree orig_type
= NULL
;
1165 if (!processing_template_decl
)
1167 /* Convert the condition to an integer or enumeration type. */
1168 cond
= build_expr_type_conversion (WANT_INT
| WANT_ENUM
, cond
, true);
1169 if (cond
== NULL_TREE
)
1171 error ("switch quantity not an integer");
1172 cond
= error_mark_node
;
1174 /* We want unlowered type here to handle enum bit-fields. */
1175 orig_type
= unlowered_expr_type (cond
);
1176 if (TREE_CODE (orig_type
) != ENUMERAL_TYPE
)
1177 orig_type
= TREE_TYPE (cond
);
1178 if (cond
!= error_mark_node
)
1182 Integral promotions are performed. */
1183 cond
= perform_integral_promotions (cond
);
1184 cond
= maybe_cleanup_point_expr (cond
);
1187 if (check_for_bare_parameter_packs (cond
))
1188 cond
= error_mark_node
;
1189 else if (!processing_template_decl
&& warn_sequence_point
)
1190 verify_sequence_points (cond
);
1192 finish_cond (&SWITCH_STMT_COND (switch_stmt
), cond
);
1193 SWITCH_STMT_TYPE (switch_stmt
) = orig_type
;
1194 add_stmt (switch_stmt
);
1195 push_switch (switch_stmt
);
1196 SWITCH_STMT_BODY (switch_stmt
) = push_stmt_list ();
1199 /* Finish the body of a switch-statement, which may be given by
1200 SWITCH_STMT. The COND to switch on is indicated. */
1203 finish_switch_stmt (tree switch_stmt
)
1207 SWITCH_STMT_BODY (switch_stmt
) =
1208 pop_stmt_list (SWITCH_STMT_BODY (switch_stmt
));
1211 scope
= SWITCH_STMT_SCOPE (switch_stmt
);
1212 SWITCH_STMT_SCOPE (switch_stmt
) = NULL
;
1213 add_stmt (do_poplevel (scope
));
1216 /* Begin a try-block. Returns a newly-created TRY_BLOCK if
1220 begin_try_block (void)
1222 tree r
= build_stmt (input_location
, TRY_BLOCK
, NULL_TREE
, NULL_TREE
);
1224 TRY_STMTS (r
) = push_stmt_list ();
1228 /* Likewise, for a function-try-block. The block returned in
1229 *COMPOUND_STMT is an artificial outer scope, containing the
1230 function-try-block. */
1233 begin_function_try_block (tree
*compound_stmt
)
1236 /* This outer scope does not exist in the C++ standard, but we need
1237 a place to put __FUNCTION__ and similar variables. */
1238 *compound_stmt
= begin_compound_stmt (0);
1239 r
= begin_try_block ();
1240 FN_TRY_BLOCK_P (r
) = 1;
1244 /* Finish a try-block, which may be given by TRY_BLOCK. */
1247 finish_try_block (tree try_block
)
1249 TRY_STMTS (try_block
) = pop_stmt_list (TRY_STMTS (try_block
));
1250 TRY_HANDLERS (try_block
) = push_stmt_list ();
1253 /* Finish the body of a cleanup try-block, which may be given by
1257 finish_cleanup_try_block (tree try_block
)
1259 TRY_STMTS (try_block
) = pop_stmt_list (TRY_STMTS (try_block
));
1262 /* Finish an implicitly generated try-block, with a cleanup is given
1266 finish_cleanup (tree cleanup
, tree try_block
)
1268 TRY_HANDLERS (try_block
) = cleanup
;
1269 CLEANUP_P (try_block
) = 1;
1272 /* Likewise, for a function-try-block. */
1275 finish_function_try_block (tree try_block
)
1277 finish_try_block (try_block
);
1278 /* FIXME : something queer about CTOR_INITIALIZER somehow following
1279 the try block, but moving it inside. */
1280 in_function_try_handler
= 1;
1283 /* Finish a handler-sequence for a try-block, which may be given by
1287 finish_handler_sequence (tree try_block
)
1289 TRY_HANDLERS (try_block
) = pop_stmt_list (TRY_HANDLERS (try_block
));
1290 check_handlers (TRY_HANDLERS (try_block
));
1293 /* Finish the handler-seq for a function-try-block, given by
1294 TRY_BLOCK. COMPOUND_STMT is the outer block created by
1295 begin_function_try_block. */
1298 finish_function_handler_sequence (tree try_block
, tree compound_stmt
)
1300 in_function_try_handler
= 0;
1301 finish_handler_sequence (try_block
);
1302 finish_compound_stmt (compound_stmt
);
1305 /* Begin a handler. Returns a HANDLER if appropriate. */
1308 begin_handler (void)
1312 r
= build_stmt (input_location
, HANDLER
, NULL_TREE
, NULL_TREE
);
1315 /* Create a binding level for the eh_info and the exception object
1317 HANDLER_BODY (r
) = do_pushlevel (sk_catch
);
1322 /* Finish the handler-parameters for a handler, which may be given by
1323 HANDLER. DECL is the declaration for the catch parameter, or NULL
1324 if this is a `catch (...)' clause. */
1327 finish_handler_parms (tree decl
, tree handler
)
1329 tree type
= NULL_TREE
;
1330 if (processing_template_decl
)
1334 decl
= pushdecl (decl
);
1335 decl
= push_template_decl (decl
);
1336 HANDLER_PARMS (handler
) = decl
;
1337 type
= TREE_TYPE (decl
);
1342 type
= expand_start_catch_block (decl
);
1343 if (warn_catch_value
1344 && type
!= NULL_TREE
1345 && type
!= error_mark_node
1346 && TREE_CODE (TREE_TYPE (decl
)) != REFERENCE_TYPE
)
1348 tree orig_type
= TREE_TYPE (decl
);
1349 if (CLASS_TYPE_P (orig_type
))
1351 if (TYPE_POLYMORPHIC_P (orig_type
))
1352 warning (OPT_Wcatch_value_
,
1353 "catching polymorphic type %q#T by value", orig_type
);
1354 else if (warn_catch_value
> 1)
1355 warning (OPT_Wcatch_value_
,
1356 "catching type %q#T by value", orig_type
);
1358 else if (warn_catch_value
> 2)
1359 warning (OPT_Wcatch_value_
,
1360 "catching non-reference type %q#T", orig_type
);
1363 HANDLER_TYPE (handler
) = type
;
1366 /* Finish a handler, which may be given by HANDLER. The BLOCKs are
1367 the return value from the matching call to finish_handler_parms. */
1370 finish_handler (tree handler
)
1372 if (!processing_template_decl
)
1373 expand_end_catch_block ();
1374 HANDLER_BODY (handler
) = do_poplevel (HANDLER_BODY (handler
));
1377 /* Begin a compound statement. FLAGS contains some bits that control the
1378 behavior and context. If BCS_NO_SCOPE is set, the compound statement
1379 does not define a scope. If BCS_FN_BODY is set, this is the outermost
1380 block of a function. If BCS_TRY_BLOCK is set, this is the block
1381 created on behalf of a TRY statement. Returns a token to be passed to
1382 finish_compound_stmt. */
1385 begin_compound_stmt (unsigned int flags
)
1389 if (flags
& BCS_NO_SCOPE
)
1391 r
= push_stmt_list ();
1392 STATEMENT_LIST_NO_SCOPE (r
) = 1;
1394 /* Normally, we try hard to keep the BLOCK for a statement-expression.
1395 But, if it's a statement-expression with a scopeless block, there's
1396 nothing to keep, and we don't want to accidentally keep a block
1397 *inside* the scopeless block. */
1398 keep_next_level (false);
1402 scope_kind sk
= sk_block
;
1403 if (flags
& BCS_TRY_BLOCK
)
1405 else if (flags
& BCS_TRANSACTION
)
1406 sk
= sk_transaction
;
1407 r
= do_pushlevel (sk
);
1410 /* When processing a template, we need to remember where the braces were,
1411 so that we can set up identical scopes when instantiating the template
1412 later. BIND_EXPR is a handy candidate for this.
1413 Note that do_poplevel won't create a BIND_EXPR itself here (and thus
1414 result in nested BIND_EXPRs), since we don't build BLOCK nodes when
1415 processing templates. */
1416 if (processing_template_decl
)
1418 r
= build3 (BIND_EXPR
, NULL
, NULL
, r
, NULL
);
1419 BIND_EXPR_TRY_BLOCK (r
) = (flags
& BCS_TRY_BLOCK
) != 0;
1420 BIND_EXPR_BODY_BLOCK (r
) = (flags
& BCS_FN_BODY
) != 0;
1421 TREE_SIDE_EFFECTS (r
) = 1;
1427 /* Finish a compound-statement, which is given by STMT. */
1430 finish_compound_stmt (tree stmt
)
1432 if (TREE_CODE (stmt
) == BIND_EXPR
)
1434 tree body
= do_poplevel (BIND_EXPR_BODY (stmt
));
1435 /* If the STATEMENT_LIST is empty and this BIND_EXPR isn't special,
1436 discard the BIND_EXPR so it can be merged with the containing
1438 if (TREE_CODE (body
) == STATEMENT_LIST
1439 && STATEMENT_LIST_HEAD (body
) == NULL
1440 && !BIND_EXPR_BODY_BLOCK (stmt
)
1441 && !BIND_EXPR_TRY_BLOCK (stmt
))
1444 BIND_EXPR_BODY (stmt
) = body
;
1446 else if (STATEMENT_LIST_NO_SCOPE (stmt
))
1447 stmt
= pop_stmt_list (stmt
);
1450 /* Destroy any ObjC "super" receivers that may have been
1452 objc_clear_super_receiver ();
1454 stmt
= do_poplevel (stmt
);
1457 /* ??? See c_end_compound_stmt wrt statement expressions. */
1461 /* Finish an asm-statement, whose components are a STRING, some
1462 OUTPUT_OPERANDS, some INPUT_OPERANDS, some CLOBBERS and some
1463 LABELS. Also note whether the asm-statement should be
1464 considered volatile. */
1467 finish_asm_stmt (int volatile_p
, tree string
, tree output_operands
,
1468 tree input_operands
, tree clobbers
, tree labels
)
1472 int ninputs
= list_length (input_operands
);
1473 int noutputs
= list_length (output_operands
);
1475 if (!processing_template_decl
)
1477 const char *constraint
;
1478 const char **oconstraints
;
1479 bool allows_mem
, allows_reg
, is_inout
;
1483 oconstraints
= XALLOCAVEC (const char *, noutputs
);
1485 string
= resolve_asm_operand_names (string
, output_operands
,
1486 input_operands
, labels
);
1488 for (i
= 0, t
= output_operands
; t
; t
= TREE_CHAIN (t
), ++i
)
1490 operand
= TREE_VALUE (t
);
1492 /* ??? Really, this should not be here. Users should be using a
1493 proper lvalue, dammit. But there's a long history of using
1494 casts in the output operands. In cases like longlong.h, this
1495 becomes a primitive form of typechecking -- if the cast can be
1496 removed, then the output operand had a type of the proper width;
1497 otherwise we'll get an error. Gross, but ... */
1498 STRIP_NOPS (operand
);
1500 operand
= mark_lvalue_use (operand
);
1502 if (!lvalue_or_else (operand
, lv_asm
, tf_warning_or_error
))
1503 operand
= error_mark_node
;
1505 if (operand
!= error_mark_node
1506 && (TREE_READONLY (operand
)
1507 || CP_TYPE_CONST_P (TREE_TYPE (operand
))
1508 /* Functions are not modifiable, even though they are
1510 || TREE_CODE (TREE_TYPE (operand
)) == FUNCTION_TYPE
1511 || TREE_CODE (TREE_TYPE (operand
)) == METHOD_TYPE
1512 /* If it's an aggregate and any field is const, then it is
1513 effectively const. */
1514 || (CLASS_TYPE_P (TREE_TYPE (operand
))
1515 && C_TYPE_FIELDS_READONLY (TREE_TYPE (operand
)))))
1516 cxx_readonly_error (operand
, lv_asm
);
1518 tree
*op
= &operand
;
1519 while (TREE_CODE (*op
) == COMPOUND_EXPR
)
1520 op
= &TREE_OPERAND (*op
, 1);
1521 switch (TREE_CODE (*op
))
1523 case PREINCREMENT_EXPR
:
1524 case PREDECREMENT_EXPR
:
1526 *op
= genericize_compound_lvalue (*op
);
1527 op
= &TREE_OPERAND (*op
, 1);
1533 constraint
= TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (t
)));
1534 oconstraints
[i
] = constraint
;
1536 if (parse_output_constraint (&constraint
, i
, ninputs
, noutputs
,
1537 &allows_mem
, &allows_reg
, &is_inout
))
1539 /* If the operand is going to end up in memory,
1540 mark it addressable. */
1541 if (!allows_reg
&& !cxx_mark_addressable (*op
))
1542 operand
= error_mark_node
;
1545 operand
= error_mark_node
;
1547 TREE_VALUE (t
) = operand
;
1550 for (i
= 0, t
= input_operands
; t
; ++i
, t
= TREE_CHAIN (t
))
1552 constraint
= TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (t
)));
1553 bool constraint_parsed
1554 = parse_input_constraint (&constraint
, i
, ninputs
, noutputs
, 0,
1555 oconstraints
, &allows_mem
, &allows_reg
);
1556 /* If the operand is going to end up in memory, don't call
1557 decay_conversion. */
1558 if (constraint_parsed
&& !allows_reg
&& allows_mem
)
1559 operand
= mark_lvalue_use (TREE_VALUE (t
));
1561 operand
= decay_conversion (TREE_VALUE (t
), tf_warning_or_error
);
1563 /* If the type of the operand hasn't been determined (e.g.,
1564 because it involves an overloaded function), then issue
1565 an error message. There's no context available to
1566 resolve the overloading. */
1567 if (TREE_TYPE (operand
) == unknown_type_node
)
1569 error ("type of asm operand %qE could not be determined",
1571 operand
= error_mark_node
;
1574 if (constraint_parsed
)
1576 /* If the operand is going to end up in memory,
1577 mark it addressable. */
1578 if (!allows_reg
&& allows_mem
)
1580 /* Strip the nops as we allow this case. FIXME, this really
1581 should be rejected or made deprecated. */
1582 STRIP_NOPS (operand
);
1584 tree
*op
= &operand
;
1585 while (TREE_CODE (*op
) == COMPOUND_EXPR
)
1586 op
= &TREE_OPERAND (*op
, 1);
1587 switch (TREE_CODE (*op
))
1589 case PREINCREMENT_EXPR
:
1590 case PREDECREMENT_EXPR
:
1592 *op
= genericize_compound_lvalue (*op
);
1593 op
= &TREE_OPERAND (*op
, 1);
1599 if (!cxx_mark_addressable (*op
))
1600 operand
= error_mark_node
;
1602 else if (!allows_reg
&& !allows_mem
)
1604 /* If constraint allows neither register nor memory,
1605 try harder to get a constant. */
1606 tree constop
= maybe_constant_value (operand
);
1607 if (TREE_CONSTANT (constop
))
1612 operand
= error_mark_node
;
1614 TREE_VALUE (t
) = operand
;
1618 r
= build_stmt (input_location
, ASM_EXPR
, string
,
1619 output_operands
, input_operands
,
1621 ASM_VOLATILE_P (r
) = volatile_p
|| noutputs
== 0;
1622 r
= maybe_cleanup_point_expr_void (r
);
1623 return add_stmt (r
);
1626 /* Finish a label with the indicated NAME. Returns the new label. */
1629 finish_label_stmt (tree name
)
1631 tree decl
= define_label (input_location
, name
);
1633 if (decl
== error_mark_node
)
1634 return error_mark_node
;
1636 add_stmt (build_stmt (input_location
, LABEL_EXPR
, decl
));
1641 /* Finish a series of declarations for local labels. G++ allows users
1642 to declare "local" labels, i.e., labels with scope. This extension
1643 is useful when writing code involving statement-expressions. */
1646 finish_label_decl (tree name
)
1648 if (!at_function_scope_p ())
1650 error ("__label__ declarations are only allowed in function scopes");
1654 add_decl_expr (declare_local_label (name
));
1657 /* When DECL goes out of scope, make sure that CLEANUP is executed. */
1660 finish_decl_cleanup (tree decl
, tree cleanup
)
1662 push_cleanup (decl
, cleanup
, false);
1665 /* If the current scope exits with an exception, run CLEANUP. */
1668 finish_eh_cleanup (tree cleanup
)
1670 push_cleanup (NULL
, cleanup
, true);
1673 /* The MEM_INITS is a list of mem-initializers, in reverse of the
1674 order they were written by the user. Each node is as for
1675 emit_mem_initializers. */
1678 finish_mem_initializers (tree mem_inits
)
1680 /* Reorder the MEM_INITS so that they are in the order they appeared
1681 in the source program. */
1682 mem_inits
= nreverse (mem_inits
);
1684 if (processing_template_decl
)
1688 for (mem
= mem_inits
; mem
; mem
= TREE_CHAIN (mem
))
1690 /* If the TREE_PURPOSE is a TYPE_PACK_EXPANSION, skip the
1691 check for bare parameter packs in the TREE_VALUE, because
1692 any parameter packs in the TREE_VALUE have already been
1693 bound as part of the TREE_PURPOSE. See
1694 make_pack_expansion for more information. */
1695 if (TREE_CODE (TREE_PURPOSE (mem
)) != TYPE_PACK_EXPANSION
1696 && check_for_bare_parameter_packs (TREE_VALUE (mem
)))
1697 TREE_VALUE (mem
) = error_mark_node
;
1700 add_stmt (build_min_nt_loc (UNKNOWN_LOCATION
,
1701 CTOR_INITIALIZER
, mem_inits
));
1704 emit_mem_initializers (mem_inits
);
1707 /* Obfuscate EXPR if it looks like an id-expression or member access so
1708 that the call to finish_decltype in do_auto_deduction will give the
1712 force_paren_expr (tree expr
)
1714 /* This is only needed for decltype(auto) in C++14. */
1715 if (cxx_dialect
< cxx14
)
1718 /* If we're in unevaluated context, we can't be deducing a
1719 return/initializer type, so we don't need to mess with this. */
1720 if (cp_unevaluated_operand
)
1723 if (!DECL_P (expr
) && TREE_CODE (expr
) != COMPONENT_REF
1724 && TREE_CODE (expr
) != SCOPE_REF
)
1727 if (TREE_CODE (expr
) == COMPONENT_REF
1728 || TREE_CODE (expr
) == SCOPE_REF
)
1729 REF_PARENTHESIZED_P (expr
) = true;
1730 else if (processing_template_decl
)
1731 expr
= build1 (PAREN_EXPR
, TREE_TYPE (expr
), expr
);
1732 else if (VAR_P (expr
) && DECL_HARD_REGISTER (expr
))
1733 /* We can't bind a hard register variable to a reference. */;
1736 cp_lvalue_kind kind
= lvalue_kind (expr
);
1737 if ((kind
& ~clk_class
) != clk_none
)
1739 tree type
= unlowered_expr_type (expr
);
1740 bool rval
= !!(kind
& clk_rvalueref
);
1741 type
= cp_build_reference_type (type
, rval
);
1742 /* This inhibits warnings in, eg, cxx_mark_addressable
1744 warning_sentinel
s (extra_warnings
);
1745 expr
= build_static_cast (type
, expr
, tf_error
);
1746 if (expr
!= error_mark_node
)
1747 REF_PARENTHESIZED_P (expr
) = true;
1754 /* If T is an id-expression obfuscated by force_paren_expr, undo the
1755 obfuscation and return the underlying id-expression. Otherwise
1759 maybe_undo_parenthesized_ref (tree t
)
1761 if (cxx_dialect
< cxx14
)
1764 if (INDIRECT_REF_P (t
) && REF_PARENTHESIZED_P (t
))
1766 t
= TREE_OPERAND (t
, 0);
1767 while (TREE_CODE (t
) == NON_LVALUE_EXPR
1768 || TREE_CODE (t
) == NOP_EXPR
)
1769 t
= TREE_OPERAND (t
, 0);
1771 gcc_assert (TREE_CODE (t
) == ADDR_EXPR
1772 || TREE_CODE (t
) == STATIC_CAST_EXPR
);
1773 t
= TREE_OPERAND (t
, 0);
1775 else if (TREE_CODE (t
) == PAREN_EXPR
)
1776 t
= TREE_OPERAND (t
, 0);
1781 /* Finish a parenthesized expression EXPR. */
1784 finish_parenthesized_expr (cp_expr expr
)
1787 /* This inhibits warnings in c_common_truthvalue_conversion. */
1788 TREE_NO_WARNING (expr
) = 1;
1790 if (TREE_CODE (expr
) == OFFSET_REF
1791 || TREE_CODE (expr
) == SCOPE_REF
)
1792 /* [expr.unary.op]/3 The qualified id of a pointer-to-member must not be
1793 enclosed in parentheses. */
1794 PTRMEM_OK_P (expr
) = 0;
1796 if (TREE_CODE (expr
) == STRING_CST
)
1797 PAREN_STRING_LITERAL_P (expr
) = 1;
1799 expr
= cp_expr (force_paren_expr (expr
), expr
.get_location ());
1804 /* Finish a reference to a non-static data member (DECL) that is not
1805 preceded by `.' or `->'. */
1808 finish_non_static_data_member (tree decl
, tree object
, tree qualifying_scope
)
1810 gcc_assert (TREE_CODE (decl
) == FIELD_DECL
);
1811 bool try_omp_private
= !object
&& omp_private_member_map
;
1816 tree scope
= qualifying_scope
;
1817 if (scope
== NULL_TREE
)
1818 scope
= context_for_name_lookup (decl
);
1819 object
= maybe_dummy_object (scope
, NULL
);
1822 object
= maybe_resolve_dummy (object
, true);
1823 if (object
== error_mark_node
)
1824 return error_mark_node
;
1826 /* DR 613/850: Can use non-static data members without an associated
1827 object in sizeof/decltype/alignof. */
1828 if (is_dummy_object (object
) && cp_unevaluated_operand
== 0
1829 && (!processing_template_decl
|| !current_class_ref
))
1831 if (current_function_decl
1832 && DECL_STATIC_FUNCTION_P (current_function_decl
))
1833 error ("invalid use of member %qD in static member function", decl
);
1835 error ("invalid use of non-static data member %qD", decl
);
1836 inform (DECL_SOURCE_LOCATION (decl
), "declared here");
1838 return error_mark_node
;
1841 if (current_class_ptr
)
1842 TREE_USED (current_class_ptr
) = 1;
1843 if (processing_template_decl
&& !qualifying_scope
)
1845 tree type
= TREE_TYPE (decl
);
1847 if (TREE_CODE (type
) == REFERENCE_TYPE
)
1848 /* Quals on the object don't matter. */;
1849 else if (PACK_EXPANSION_P (type
))
1850 /* Don't bother trying to represent this. */
1854 /* Set the cv qualifiers. */
1855 int quals
= cp_type_quals (TREE_TYPE (object
));
1857 if (DECL_MUTABLE_P (decl
))
1858 quals
&= ~TYPE_QUAL_CONST
;
1860 quals
|= cp_type_quals (TREE_TYPE (decl
));
1861 type
= cp_build_qualified_type (type
, quals
);
1864 ret
= (convert_from_reference
1865 (build_min (COMPONENT_REF
, type
, object
, decl
, NULL_TREE
)));
1867 /* If PROCESSING_TEMPLATE_DECL is nonzero here, then
1868 QUALIFYING_SCOPE is also non-null. Wrap this in a SCOPE_REF
1870 else if (processing_template_decl
)
1871 ret
= build_qualified_name (TREE_TYPE (decl
),
1874 /*template_p=*/false);
1877 tree access_type
= TREE_TYPE (object
);
1879 perform_or_defer_access_check (TYPE_BINFO (access_type
), decl
,
1880 decl
, tf_warning_or_error
);
1882 /* If the data member was named `C::M', convert `*this' to `C'
1884 if (qualifying_scope
)
1886 tree binfo
= NULL_TREE
;
1887 object
= build_scoped_ref (object
, qualifying_scope
,
1891 ret
= build_class_member_access_expr (object
, decl
,
1892 /*access_path=*/NULL_TREE
,
1893 /*preserve_reference=*/false,
1894 tf_warning_or_error
);
1896 if (try_omp_private
)
1898 tree
*v
= omp_private_member_map
->get (decl
);
1900 ret
= convert_from_reference (*v
);
1905 /* If we are currently parsing a template and we encountered a typedef
1906 TYPEDEF_DECL that is being accessed though CONTEXT, this function
1907 adds the typedef to a list tied to the current template.
1908 At template instantiation time, that list is walked and access check
1909 performed for each typedef.
1910 LOCATION is the location of the usage point of TYPEDEF_DECL. */
1913 add_typedef_to_current_template_for_access_check (tree typedef_decl
,
1915 location_t location
)
1917 tree template_info
= NULL
;
1918 tree cs
= current_scope ();
1920 if (!is_typedef_decl (typedef_decl
)
1922 || !CLASS_TYPE_P (context
)
1926 if (CLASS_TYPE_P (cs
) || TREE_CODE (cs
) == FUNCTION_DECL
)
1927 template_info
= get_template_info (cs
);
1930 && TI_TEMPLATE (template_info
)
1931 && !currently_open_class (context
))
1932 append_type_to_template_for_access_check (cs
, typedef_decl
,
1936 /* DECL was the declaration to which a qualified-id resolved. Issue
1937 an error message if it is not accessible. If OBJECT_TYPE is
1938 non-NULL, we have just seen `x->' or `x.' and OBJECT_TYPE is the
1939 type of `*x', or `x', respectively. If the DECL was named as
1940 `A::B' then NESTED_NAME_SPECIFIER is `A'. */
1943 check_accessibility_of_qualified_id (tree decl
,
1945 tree nested_name_specifier
)
1948 tree qualifying_type
= NULL_TREE
;
1950 /* If we are parsing a template declaration and if decl is a typedef,
1951 add it to a list tied to the template.
1952 At template instantiation time, that list will be walked and
1953 access check performed. */
1954 add_typedef_to_current_template_for_access_check (decl
,
1955 nested_name_specifier
1956 ? nested_name_specifier
1957 : DECL_CONTEXT (decl
),
1960 /* If we're not checking, return immediately. */
1961 if (deferred_access_no_check
)
1964 /* Determine the SCOPE of DECL. */
1965 scope
= context_for_name_lookup (decl
);
1966 /* If the SCOPE is not a type, then DECL is not a member. */
1967 if (!TYPE_P (scope
))
1969 /* Compute the scope through which DECL is being accessed. */
1971 /* OBJECT_TYPE might not be a class type; consider:
1973 class A { typedef int I; };
1977 In this case, we will have "A::I" as the DECL, but "I" as the
1979 && CLASS_TYPE_P (object_type
)
1980 && DERIVED_FROM_P (scope
, object_type
))
1981 /* If we are processing a `->' or `.' expression, use the type of the
1983 qualifying_type
= object_type
;
1984 else if (nested_name_specifier
)
1986 /* If the reference is to a non-static member of the
1987 current class, treat it as if it were referenced through
1990 if (DECL_NONSTATIC_MEMBER_P (decl
)
1991 && current_class_ptr
1992 && DERIVED_FROM_P (scope
, ct
= current_nonlambda_class_type ()))
1993 qualifying_type
= ct
;
1994 /* Otherwise, use the type indicated by the
1995 nested-name-specifier. */
1997 qualifying_type
= nested_name_specifier
;
2000 /* Otherwise, the name must be from the current class or one of
2002 qualifying_type
= currently_open_derived_class (scope
);
2005 /* It is possible for qualifying type to be a TEMPLATE_TYPE_PARM
2006 or similar in a default argument value. */
2007 && CLASS_TYPE_P (qualifying_type
)
2008 && !dependent_type_p (qualifying_type
))
2009 perform_or_defer_access_check (TYPE_BINFO (qualifying_type
), decl
,
2010 decl
, tf_warning_or_error
);
2013 /* EXPR is the result of a qualified-id. The QUALIFYING_CLASS was the
2014 class named to the left of the "::" operator. DONE is true if this
2015 expression is a complete postfix-expression; it is false if this
2016 expression is followed by '->', '[', '(', etc. ADDRESS_P is true
2017 iff this expression is the operand of '&'. TEMPLATE_P is true iff
2018 the qualified-id was of the form "A::template B". TEMPLATE_ARG_P
2019 is true iff this qualified name appears as a template argument. */
2022 finish_qualified_id_expr (tree qualifying_class
,
2027 bool template_arg_p
,
2028 tsubst_flags_t complain
)
2030 gcc_assert (TYPE_P (qualifying_class
));
2032 if (error_operand_p (expr
))
2033 return error_mark_node
;
2035 if ((DECL_P (expr
) || BASELINK_P (expr
))
2036 && !mark_used (expr
, complain
))
2037 return error_mark_node
;
2041 if (TREE_CODE (expr
) == UNBOUND_CLASS_TEMPLATE
)
2043 /* cp_parser_lookup_name thought we were looking for a type,
2044 but we're actually looking for a declaration. */
2045 qualifying_class
= TYPE_CONTEXT (expr
);
2046 expr
= TYPE_IDENTIFIER (expr
);
2049 check_template_keyword (expr
);
2052 /* If EXPR occurs as the operand of '&', use special handling that
2053 permits a pointer-to-member. */
2054 if (address_p
&& done
)
2056 if (TREE_CODE (expr
) == SCOPE_REF
)
2057 expr
= TREE_OPERAND (expr
, 1);
2058 expr
= build_offset_ref (qualifying_class
, expr
,
2059 /*address_p=*/true, complain
);
2063 /* No need to check access within an enum. */
2064 if (TREE_CODE (qualifying_class
) == ENUMERAL_TYPE
)
2067 /* Within the scope of a class, turn references to non-static
2068 members into expression of the form "this->...". */
2070 /* But, within a template argument, we do not want make the
2071 transformation, as there is no "this" pointer. */
2073 else if (TREE_CODE (expr
) == FIELD_DECL
)
2075 push_deferring_access_checks (dk_no_check
);
2076 expr
= finish_non_static_data_member (expr
, NULL_TREE
,
2078 pop_deferring_access_checks ();
2080 else if (BASELINK_P (expr
))
2082 /* See if any of the functions are non-static members. */
2083 /* If so, the expression may be relative to 'this'. */
2084 if (!shared_member_p (expr
)
2085 && current_class_ptr
2086 && DERIVED_FROM_P (qualifying_class
,
2087 current_nonlambda_class_type ()))
2088 expr
= (build_class_member_access_expr
2089 (maybe_dummy_object (qualifying_class
, NULL
),
2091 BASELINK_ACCESS_BINFO (expr
),
2092 /*preserve_reference=*/false,
2095 /* The expression is a qualified name whose address is not
2097 expr
= build_offset_ref (qualifying_class
, expr
, /*address_p=*/false,
2102 /* In a template, return a SCOPE_REF for most qualified-ids
2103 so that we can check access at instantiation time. But if
2104 we're looking at a member of the current instantiation, we
2105 know we have access and building up the SCOPE_REF confuses
2106 non-type template argument handling. */
2107 if (processing_template_decl
2108 && (!currently_open_class (qualifying_class
)
2109 || TREE_CODE (expr
) == BIT_NOT_EXPR
))
2110 expr
= build_qualified_name (TREE_TYPE (expr
),
2111 qualifying_class
, expr
,
2114 expr
= convert_from_reference (expr
);
2120 /* Begin a statement-expression. The value returned must be passed to
2121 finish_stmt_expr. */
2124 begin_stmt_expr (void)
2126 return push_stmt_list ();
2129 /* Process the final expression of a statement expression. EXPR can be
2130 NULL, if the final expression is empty. Return a STATEMENT_LIST
2131 containing all the statements in the statement-expression, or
2132 ERROR_MARK_NODE if there was an error. */
2135 finish_stmt_expr_expr (tree expr
, tree stmt_expr
)
2137 if (error_operand_p (expr
))
2139 /* The type of the statement-expression is the type of the last
2141 TREE_TYPE (stmt_expr
) = error_mark_node
;
2142 return error_mark_node
;
2145 /* If the last statement does not have "void" type, then the value
2146 of the last statement is the value of the entire expression. */
2149 tree type
= TREE_TYPE (expr
);
2151 if (type
&& type_unknown_p (type
))
2153 error ("a statement expression is an insufficient context"
2154 " for overload resolution");
2155 TREE_TYPE (stmt_expr
) = error_mark_node
;
2156 return error_mark_node
;
2158 else if (processing_template_decl
)
2160 expr
= build_stmt (input_location
, EXPR_STMT
, expr
);
2161 expr
= add_stmt (expr
);
2162 /* Mark the last statement so that we can recognize it as such at
2163 template-instantiation time. */
2164 EXPR_STMT_STMT_EXPR_RESULT (expr
) = 1;
2166 else if (VOID_TYPE_P (type
))
2168 /* Just treat this like an ordinary statement. */
2169 expr
= finish_expr_stmt (expr
);
2173 /* It actually has a value we need to deal with. First, force it
2174 to be an rvalue so that we won't need to build up a copy
2175 constructor call later when we try to assign it to something. */
2176 expr
= force_rvalue (expr
, tf_warning_or_error
);
2177 if (error_operand_p (expr
))
2178 return error_mark_node
;
2180 /* Update for array-to-pointer decay. */
2181 type
= TREE_TYPE (expr
);
2183 /* Wrap it in a CLEANUP_POINT_EXPR and add it to the list like a
2184 normal statement, but don't convert to void or actually add
2186 if (TREE_CODE (expr
) != CLEANUP_POINT_EXPR
)
2187 expr
= maybe_cleanup_point_expr (expr
);
2191 /* The type of the statement-expression is the type of the last
2193 TREE_TYPE (stmt_expr
) = type
;
2199 /* Finish a statement-expression. EXPR should be the value returned
2200 by the previous begin_stmt_expr. Returns an expression
2201 representing the statement-expression. */
2204 finish_stmt_expr (tree stmt_expr
, bool has_no_scope
)
2209 if (error_operand_p (stmt_expr
))
2211 pop_stmt_list (stmt_expr
);
2212 return error_mark_node
;
2215 gcc_assert (TREE_CODE (stmt_expr
) == STATEMENT_LIST
);
2217 type
= TREE_TYPE (stmt_expr
);
2218 result
= pop_stmt_list (stmt_expr
);
2219 TREE_TYPE (result
) = type
;
2221 if (processing_template_decl
)
2223 result
= build_min (STMT_EXPR
, type
, result
);
2224 TREE_SIDE_EFFECTS (result
) = 1;
2225 STMT_EXPR_NO_SCOPE (result
) = has_no_scope
;
2227 else if (CLASS_TYPE_P (type
))
2229 /* Wrap the statement-expression in a TARGET_EXPR so that the
2230 temporary object created by the final expression is destroyed at
2231 the end of the full-expression containing the
2232 statement-expression. */
2233 result
= force_target_expr (type
, result
, tf_warning_or_error
);
2239 /* Returns the expression which provides the value of STMT_EXPR. */
2242 stmt_expr_value_expr (tree stmt_expr
)
2244 tree t
= STMT_EXPR_STMT (stmt_expr
);
2246 if (TREE_CODE (t
) == BIND_EXPR
)
2247 t
= BIND_EXPR_BODY (t
);
2249 if (TREE_CODE (t
) == STATEMENT_LIST
&& STATEMENT_LIST_TAIL (t
))
2250 t
= STATEMENT_LIST_TAIL (t
)->stmt
;
2252 if (TREE_CODE (t
) == EXPR_STMT
)
2253 t
= EXPR_STMT_EXPR (t
);
2258 /* Return TRUE iff EXPR_STMT is an empty list of
2259 expression statements. */
2262 empty_expr_stmt_p (tree expr_stmt
)
2264 tree body
= NULL_TREE
;
2266 if (expr_stmt
== void_node
)
2271 if (TREE_CODE (expr_stmt
) == EXPR_STMT
)
2272 body
= EXPR_STMT_EXPR (expr_stmt
);
2273 else if (TREE_CODE (expr_stmt
) == STATEMENT_LIST
)
2279 if (TREE_CODE (body
) == STATEMENT_LIST
)
2280 return tsi_end_p (tsi_start (body
));
2282 return empty_expr_stmt_p (body
);
2287 /* Perform Koenig lookup. FN is the postfix-expression representing
2288 the function (or functions) to call; ARGS are the arguments to the
2289 call. Returns the functions to be considered by overload resolution. */
2292 perform_koenig_lookup (cp_expr fn
, vec
<tree
, va_gc
> *args
,
2293 tsubst_flags_t complain
)
2295 tree identifier
= NULL_TREE
;
2296 tree functions
= NULL_TREE
;
2297 tree tmpl_args
= NULL_TREE
;
2298 bool template_id
= false;
2299 location_t loc
= fn
.get_location ();
2301 if (TREE_CODE (fn
) == TEMPLATE_ID_EXPR
)
2303 /* Use a separate flag to handle null args. */
2305 tmpl_args
= TREE_OPERAND (fn
, 1);
2306 fn
= TREE_OPERAND (fn
, 0);
2309 /* Find the name of the overloaded function. */
2310 if (identifier_p (fn
))
2315 identifier
= OVL_NAME (functions
);
2318 /* A call to a namespace-scope function using an unqualified name.
2320 Do Koenig lookup -- unless any of the arguments are
2322 if (!any_type_dependent_arguments_p (args
)
2323 && !any_dependent_template_arguments_p (tmpl_args
))
2325 fn
= lookup_arg_dependent (identifier
, functions
, args
);
2328 /* The unqualified name could not be resolved. */
2329 if (complain
& tf_error
)
2330 fn
= unqualified_fn_lookup_error (cp_expr (identifier
, loc
));
2336 if (fn
&& template_id
&& fn
!= error_mark_node
)
2337 fn
= build2 (TEMPLATE_ID_EXPR
, unknown_type_node
, fn
, tmpl_args
);
2342 /* Generate an expression for `FN (ARGS)'. This may change the
2345 If DISALLOW_VIRTUAL is true, the call to FN will be not generated
2346 as a virtual call, even if FN is virtual. (This flag is set when
2347 encountering an expression where the function name is explicitly
2348 qualified. For example a call to `X::f' never generates a virtual
2351 Returns code for the call. */
2354 finish_call_expr (tree fn
, vec
<tree
, va_gc
> **args
, bool disallow_virtual
,
2355 bool koenig_p
, tsubst_flags_t complain
)
2359 vec
<tree
, va_gc
> *orig_args
= NULL
;
2361 if (fn
== error_mark_node
)
2362 return error_mark_node
;
2364 gcc_assert (!TYPE_P (fn
));
2366 /* If FN may be a FUNCTION_DECL obfuscated by force_paren_expr, undo
2367 it so that we can tell this is a call to a known function. */
2368 fn
= maybe_undo_parenthesized_ref (fn
);
2372 if (processing_template_decl
)
2374 /* If FN is a local extern declaration or set thereof, look them up
2375 again at instantiation time. */
2376 if (is_overloaded_fn (fn
))
2378 tree ifn
= get_first_fn (fn
);
2379 if (TREE_CODE (ifn
) == FUNCTION_DECL
2380 && DECL_LOCAL_FUNCTION_P (ifn
))
2381 orig_fn
= DECL_NAME (ifn
);
2384 /* If the call expression is dependent, build a CALL_EXPR node
2385 with no type; type_dependent_expression_p recognizes
2386 expressions with no type as being dependent. */
2387 if (type_dependent_expression_p (fn
)
2388 || any_type_dependent_arguments_p (*args
))
2390 result
= build_min_nt_call_vec (orig_fn
, *args
);
2391 SET_EXPR_LOCATION (result
, EXPR_LOC_OR_LOC (fn
, input_location
));
2392 KOENIG_LOOKUP_P (result
) = koenig_p
;
2393 if (is_overloaded_fn (fn
))
2396 lookup_keep (fn
, true);
2401 bool abnormal
= true;
2402 for (lkp_iterator
iter (fn
); abnormal
&& iter
; ++iter
)
2404 tree fndecl
= *iter
;
2405 if (TREE_CODE (fndecl
) != FUNCTION_DECL
2406 || !TREE_THIS_VOLATILE (fndecl
))
2409 /* FIXME: Stop warning about falling off end of non-void
2410 function. But this is wrong. Even if we only see
2411 no-return fns at this point, we could select a
2412 future-defined return fn during instantiation. Or
2415 current_function_returns_abnormally
= 1;
2419 orig_args
= make_tree_vector_copy (*args
);
2420 if (!BASELINK_P (fn
)
2421 && TREE_CODE (fn
) != PSEUDO_DTOR_EXPR
2422 && TREE_TYPE (fn
) != unknown_type_node
)
2423 fn
= build_non_dependent_expr (fn
);
2424 make_args_non_dependent (*args
);
2427 if (TREE_CODE (fn
) == COMPONENT_REF
)
2429 tree member
= TREE_OPERAND (fn
, 1);
2430 if (BASELINK_P (member
))
2432 tree object
= TREE_OPERAND (fn
, 0);
2433 return build_new_method_call (object
, member
,
2436 ? LOOKUP_NORMAL
| LOOKUP_NONVIRTUAL
2443 /* Per 13.3.1.1, '(&f)(...)' is the same as '(f)(...)'. */
2444 if (TREE_CODE (fn
) == ADDR_EXPR
2445 && TREE_CODE (TREE_OPERAND (fn
, 0)) == OVERLOAD
)
2446 fn
= TREE_OPERAND (fn
, 0);
2448 if (is_overloaded_fn (fn
))
2449 fn
= baselink_for_fns (fn
);
2452 if (BASELINK_P (fn
))
2456 /* A call to a member function. From [over.call.func]:
2458 If the keyword this is in scope and refers to the class of
2459 that member function, or a derived class thereof, then the
2460 function call is transformed into a qualified function call
2461 using (*this) as the postfix-expression to the left of the
2462 . operator.... [Otherwise] a contrived object of type T
2463 becomes the implied object argument.
2467 struct A { void f(); };
2468 struct B : public A {};
2469 struct C : public A { void g() { B::f(); }};
2471 "the class of that member function" refers to `A'. But 11.2
2472 [class.access.base] says that we need to convert 'this' to B* as
2473 part of the access, so we pass 'B' to maybe_dummy_object. */
2475 if (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (get_first_fn (fn
)))
2477 /* A constructor call always uses a dummy object. (This constructor
2478 call which has the form A::A () is actually invalid and we are
2479 going to reject it later in build_new_method_call.) */
2480 object
= build_dummy_object (BINFO_TYPE (BASELINK_ACCESS_BINFO (fn
)));
2483 object
= maybe_dummy_object (BINFO_TYPE (BASELINK_ACCESS_BINFO (fn
)),
2486 result
= build_new_method_call (object
, fn
, args
, NULL_TREE
,
2488 ? LOOKUP_NORMAL
|LOOKUP_NONVIRTUAL
2493 else if (is_overloaded_fn (fn
))
2495 /* If the function is an overloaded builtin, resolve it. */
2496 if (TREE_CODE (fn
) == FUNCTION_DECL
2497 && (DECL_BUILT_IN_CLASS (fn
) == BUILT_IN_NORMAL
2498 || DECL_BUILT_IN_CLASS (fn
) == BUILT_IN_MD
))
2499 result
= resolve_overloaded_builtin (input_location
, fn
, *args
);
2503 if (warn_sizeof_pointer_memaccess
2504 && (complain
& tf_warning
)
2505 && !vec_safe_is_empty (*args
)
2506 && !processing_template_decl
)
2508 location_t sizeof_arg_loc
[3];
2511 for (i
= 0; i
< 3; i
++)
2515 sizeof_arg_loc
[i
] = UNKNOWN_LOCATION
;
2516 sizeof_arg
[i
] = NULL_TREE
;
2517 if (i
>= (*args
)->length ())
2520 if (TREE_CODE (t
) != SIZEOF_EXPR
)
2522 if (SIZEOF_EXPR_TYPE_P (t
))
2523 sizeof_arg
[i
] = TREE_TYPE (TREE_OPERAND (t
, 0));
2525 sizeof_arg
[i
] = TREE_OPERAND (t
, 0);
2526 sizeof_arg_loc
[i
] = EXPR_LOCATION (t
);
2528 sizeof_pointer_memaccess_warning
2529 (sizeof_arg_loc
, fn
, *args
,
2530 sizeof_arg
, same_type_ignoring_top_level_qualifiers_p
);
2533 /* A call to a namespace-scope function. */
2534 result
= build_new_function_call (fn
, args
, complain
);
2537 else if (TREE_CODE (fn
) == PSEUDO_DTOR_EXPR
)
2539 if (!vec_safe_is_empty (*args
))
2540 error ("arguments to destructor are not allowed");
2541 /* Mark the pseudo-destructor call as having side-effects so
2542 that we do not issue warnings about its use. */
2543 result
= build1 (NOP_EXPR
,
2545 TREE_OPERAND (fn
, 0));
2546 TREE_SIDE_EFFECTS (result
) = 1;
2548 else if (CLASS_TYPE_P (TREE_TYPE (fn
)))
2549 /* If the "function" is really an object of class type, it might
2550 have an overloaded `operator ()'. */
2551 result
= build_op_call (fn
, args
, complain
);
2554 /* A call where the function is unknown. */
2555 result
= cp_build_function_call_vec (fn
, args
, complain
);
2557 if (processing_template_decl
&& result
!= error_mark_node
)
2559 if (INDIRECT_REF_P (result
))
2560 result
= TREE_OPERAND (result
, 0);
2561 result
= build_call_vec (TREE_TYPE (result
), orig_fn
, orig_args
);
2562 SET_EXPR_LOCATION (result
, input_location
);
2563 KOENIG_LOOKUP_P (result
) = koenig_p
;
2564 release_tree_vector (orig_args
);
2565 result
= convert_from_reference (result
);
2568 /* Free or retain OVERLOADs from lookup. */
2569 if (is_overloaded_fn (orig_fn
))
2570 lookup_keep (get_fns (orig_fn
), processing_template_decl
);
2575 /* Finish a call to a postfix increment or decrement or EXPR. (Which
2576 is indicated by CODE, which should be POSTINCREMENT_EXPR or
2577 POSTDECREMENT_EXPR.) */
2580 finish_increment_expr (cp_expr expr
, enum tree_code code
)
2582 /* input_location holds the location of the trailing operator token.
2583 Build a location of the form:
2586 with the caret at the operator token, ranging from the start
2587 of EXPR to the end of the operator token. */
2588 location_t combined_loc
= make_location (input_location
,
2590 get_finish (input_location
));
2591 cp_expr result
= build_x_unary_op (combined_loc
, code
, expr
,
2592 tf_warning_or_error
);
2593 /* TODO: build_x_unary_op doesn't honor the location, so set it here. */
2594 result
.set_location (combined_loc
);
2598 /* Finish a use of `this'. Returns an expression for `this'. */
2601 finish_this_expr (void)
2603 tree result
= NULL_TREE
;
2605 if (current_class_ptr
)
2607 tree type
= TREE_TYPE (current_class_ref
);
2609 /* In a lambda expression, 'this' refers to the captured 'this'. */
2610 if (LAMBDA_TYPE_P (type
))
2611 result
= lambda_expr_this_capture (CLASSTYPE_LAMBDA_EXPR (type
), true);
2613 result
= current_class_ptr
;
2617 /* The keyword 'this' is a prvalue expression. */
2618 return rvalue (result
);
2620 tree fn
= current_nonlambda_function ();
2621 if (fn
&& DECL_STATIC_FUNCTION_P (fn
))
2622 error ("%<this%> is unavailable for static member functions");
2624 error ("invalid use of %<this%> in non-member function");
2626 error ("invalid use of %<this%> at top level");
2627 return error_mark_node
;
2630 /* Finish a pseudo-destructor expression. If SCOPE is NULL, the
2631 expression was of the form `OBJECT.~DESTRUCTOR' where DESTRUCTOR is
2632 the TYPE for the type given. If SCOPE is non-NULL, the expression
2633 was of the form `OBJECT.SCOPE::~DESTRUCTOR'. */
2636 finish_pseudo_destructor_expr (tree object
, tree scope
, tree destructor
,
2639 if (object
== error_mark_node
|| destructor
== error_mark_node
)
2640 return error_mark_node
;
2642 gcc_assert (TYPE_P (destructor
));
2644 if (!processing_template_decl
)
2646 if (scope
== error_mark_node
)
2648 error_at (loc
, "invalid qualifying scope in pseudo-destructor name");
2649 return error_mark_node
;
2651 if (is_auto (destructor
))
2652 destructor
= TREE_TYPE (object
);
2653 if (scope
&& TYPE_P (scope
) && !check_dtor_name (scope
, destructor
))
2656 "qualified type %qT does not match destructor name ~%qT",
2658 return error_mark_node
;
2662 /* [expr.pseudo] says both:
2664 The type designated by the pseudo-destructor-name shall be
2665 the same as the object type.
2669 The cv-unqualified versions of the object type and of the
2670 type designated by the pseudo-destructor-name shall be the
2673 We implement the more generous second sentence, since that is
2674 what most other compilers do. */
2675 if (!same_type_ignoring_top_level_qualifiers_p (TREE_TYPE (object
),
2678 error_at (loc
, "%qE is not of type %qT", object
, destructor
);
2679 return error_mark_node
;
2683 return build3_loc (loc
, PSEUDO_DTOR_EXPR
, void_type_node
, object
,
2687 /* Finish an expression of the form CODE EXPR. */
2690 finish_unary_op_expr (location_t op_loc
, enum tree_code code
, cp_expr expr
,
2691 tsubst_flags_t complain
)
2693 /* Build a location of the form:
2696 with the caret at the operator token, ranging from the start
2697 of the operator token to the end of EXPR. */
2698 location_t combined_loc
= make_location (op_loc
,
2699 op_loc
, expr
.get_finish ());
2700 cp_expr result
= build_x_unary_op (combined_loc
, code
, expr
, complain
);
2701 /* TODO: build_x_unary_op doesn't always honor the location. */
2702 result
.set_location (combined_loc
);
2704 tree result_ovl
, expr_ovl
;
2706 if (!(complain
& tf_warning
))
2709 result_ovl
= result
;
2712 if (!processing_template_decl
)
2713 expr_ovl
= cp_fully_fold (expr_ovl
);
2715 if (!CONSTANT_CLASS_P (expr_ovl
)
2716 || TREE_OVERFLOW_P (expr_ovl
))
2719 if (!processing_template_decl
)
2720 result_ovl
= cp_fully_fold (result_ovl
);
2722 if (CONSTANT_CLASS_P (result_ovl
) && TREE_OVERFLOW_P (result_ovl
))
2723 overflow_warning (combined_loc
, result_ovl
);
2728 /* Finish a compound-literal expression or C++11 functional cast with aggregate
2729 initializer. TYPE is the type to which the CONSTRUCTOR in COMPOUND_LITERAL
2733 finish_compound_literal (tree type
, tree compound_literal
,
2734 tsubst_flags_t complain
,
2737 if (type
== error_mark_node
)
2738 return error_mark_node
;
2740 if (TREE_CODE (type
) == REFERENCE_TYPE
)
2743 = finish_compound_literal (TREE_TYPE (type
), compound_literal
,
2744 complain
, fcl_context
);
2745 return cp_build_c_cast (type
, compound_literal
, complain
);
2748 if (!TYPE_OBJ_P (type
))
2750 if (complain
& tf_error
)
2751 error ("compound literal of non-object type %qT", type
);
2752 return error_mark_node
;
2755 if (tree anode
= type_uses_auto (type
))
2756 if (CLASS_PLACEHOLDER_TEMPLATE (anode
))
2758 type
= do_auto_deduction (type
, compound_literal
, anode
, complain
,
2760 if (type
== error_mark_node
)
2761 return error_mark_node
;
2764 if (processing_template_decl
)
2766 TREE_TYPE (compound_literal
) = type
;
2767 /* Mark the expression as a compound literal. */
2768 TREE_HAS_CONSTRUCTOR (compound_literal
) = 1;
2769 if (fcl_context
== fcl_c99
)
2770 CONSTRUCTOR_C99_COMPOUND_LITERAL (compound_literal
) = 1;
2771 return compound_literal
;
2774 type
= complete_type (type
);
2776 if (TYPE_NON_AGGREGATE_CLASS (type
))
2778 /* Trying to deal with a CONSTRUCTOR instead of a TREE_LIST
2779 everywhere that deals with function arguments would be a pain, so
2780 just wrap it in a TREE_LIST. The parser set a flag so we know
2781 that it came from T{} rather than T({}). */
2782 CONSTRUCTOR_IS_DIRECT_INIT (compound_literal
) = 1;
2783 compound_literal
= build_tree_list (NULL_TREE
, compound_literal
);
2784 return build_functional_cast (type
, compound_literal
, complain
);
2787 if (TREE_CODE (type
) == ARRAY_TYPE
2788 && check_array_initializer (NULL_TREE
, type
, compound_literal
))
2789 return error_mark_node
;
2790 compound_literal
= reshape_init (type
, compound_literal
, complain
);
2791 if (SCALAR_TYPE_P (type
)
2792 && !BRACE_ENCLOSED_INITIALIZER_P (compound_literal
)
2793 && !check_narrowing (type
, compound_literal
, complain
))
2794 return error_mark_node
;
2795 if (TREE_CODE (type
) == ARRAY_TYPE
2796 && TYPE_DOMAIN (type
) == NULL_TREE
)
2798 cp_complete_array_type_or_error (&type
, compound_literal
,
2800 if (type
== error_mark_node
)
2801 return error_mark_node
;
2803 compound_literal
= digest_init_flags (type
, compound_literal
, LOOKUP_NORMAL
,
2805 if (TREE_CODE (compound_literal
) == CONSTRUCTOR
)
2807 TREE_HAS_CONSTRUCTOR (compound_literal
) = true;
2808 if (fcl_context
== fcl_c99
)
2809 CONSTRUCTOR_C99_COMPOUND_LITERAL (compound_literal
) = 1;
2812 /* Put static/constant array temporaries in static variables. */
2813 /* FIXME all C99 compound literals should be variables rather than C++
2814 temporaries, unless they are used as an aggregate initializer. */
2815 if ((!at_function_scope_p () || CP_TYPE_CONST_P (type
))
2816 && fcl_context
== fcl_c99
2817 && TREE_CODE (type
) == ARRAY_TYPE
2818 && !TYPE_HAS_NONTRIVIAL_DESTRUCTOR (type
)
2819 && initializer_constant_valid_p (compound_literal
, type
))
2821 tree decl
= create_temporary_var (type
);
2822 DECL_INITIAL (decl
) = compound_literal
;
2823 TREE_STATIC (decl
) = 1;
2824 if (literal_type_p (type
) && CP_TYPE_CONST_NON_VOLATILE_P (type
))
2826 /* 5.19 says that a constant expression can include an
2827 lvalue-rvalue conversion applied to "a glvalue of literal type
2828 that refers to a non-volatile temporary object initialized
2829 with a constant expression". Rather than try to communicate
2830 that this VAR_DECL is a temporary, just mark it constexpr. */
2831 DECL_DECLARED_CONSTEXPR_P (decl
) = true;
2832 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (decl
) = true;
2833 TREE_CONSTANT (decl
) = true;
2835 cp_apply_type_quals_to_decl (cp_type_quals (type
), decl
);
2836 decl
= pushdecl_top_level (decl
);
2837 DECL_NAME (decl
) = make_anon_name ();
2838 SET_DECL_ASSEMBLER_NAME (decl
, DECL_NAME (decl
));
2839 /* Make sure the destructor is callable. */
2840 tree clean
= cxx_maybe_build_cleanup (decl
, complain
);
2841 if (clean
== error_mark_node
)
2842 return error_mark_node
;
2846 /* Represent other compound literals with TARGET_EXPR so we produce
2847 an lvalue, but can elide copies. */
2848 if (!VECTOR_TYPE_P (type
))
2849 compound_literal
= get_target_expr_sfinae (compound_literal
, complain
);
2851 return compound_literal
;
2854 /* Return the declaration for the function-name variable indicated by
2858 finish_fname (tree id
)
2862 decl
= fname_decl (input_location
, C_RID_CODE (id
), id
);
2863 if (processing_template_decl
&& current_function_decl
2864 && decl
!= error_mark_node
)
2865 decl
= DECL_NAME (decl
);
2869 /* Finish a translation unit. */
2872 finish_translation_unit (void)
2874 /* In case there were missing closebraces,
2875 get us back to the global binding level. */
2877 while (current_namespace
!= global_namespace
)
2880 /* Do file scope __FUNCTION__ et al. */
2881 finish_fname_decls ();
2884 /* Finish a template type parameter, specified as AGGR IDENTIFIER.
2885 Returns the parameter. */
2888 finish_template_type_parm (tree aggr
, tree identifier
)
2890 if (aggr
!= class_type_node
)
2892 permerror (input_location
, "template type parameters must use the keyword %<class%> or %<typename%>");
2893 aggr
= class_type_node
;
2896 return build_tree_list (aggr
, identifier
);
2899 /* Finish a template template parameter, specified as AGGR IDENTIFIER.
2900 Returns the parameter. */
2903 finish_template_template_parm (tree aggr
, tree identifier
)
2905 tree decl
= build_decl (input_location
,
2906 TYPE_DECL
, identifier
, NULL_TREE
);
2908 tree tmpl
= build_lang_decl (TEMPLATE_DECL
, identifier
, NULL_TREE
);
2909 DECL_TEMPLATE_PARMS (tmpl
) = current_template_parms
;
2910 DECL_TEMPLATE_RESULT (tmpl
) = decl
;
2911 DECL_ARTIFICIAL (decl
) = 1;
2913 // Associate the constraints with the underlying declaration,
2914 // not the template.
2915 tree reqs
= TEMPLATE_PARMS_CONSTRAINTS (current_template_parms
);
2916 tree constr
= build_constraints (reqs
, NULL_TREE
);
2917 set_constraints (decl
, constr
);
2919 end_template_decl ();
2921 gcc_assert (DECL_TEMPLATE_PARMS (tmpl
));
2923 check_default_tmpl_args (decl
, DECL_TEMPLATE_PARMS (tmpl
),
2924 /*is_primary=*/true, /*is_partial=*/false,
2927 return finish_template_type_parm (aggr
, tmpl
);
2930 /* ARGUMENT is the default-argument value for a template template
2931 parameter. If ARGUMENT is invalid, issue error messages and return
2932 the ERROR_MARK_NODE. Otherwise, ARGUMENT itself is returned. */
2935 check_template_template_default_arg (tree argument
)
2937 if (TREE_CODE (argument
) != TEMPLATE_DECL
2938 && TREE_CODE (argument
) != TEMPLATE_TEMPLATE_PARM
2939 && TREE_CODE (argument
) != UNBOUND_CLASS_TEMPLATE
)
2941 if (TREE_CODE (argument
) == TYPE_DECL
)
2942 error ("invalid use of type %qT as a default value for a template "
2943 "template-parameter", TREE_TYPE (argument
));
2945 error ("invalid default argument for a template template parameter");
2946 return error_mark_node
;
2952 /* Begin a class definition, as indicated by T. */
2955 begin_class_definition (tree t
)
2957 if (error_operand_p (t
) || error_operand_p (TYPE_MAIN_DECL (t
)))
2958 return error_mark_node
;
2960 if (processing_template_parmlist
)
2962 error ("definition of %q#T inside template parameter list", t
);
2963 return error_mark_node
;
2966 /* According to the C++ ABI, decimal classes defined in ISO/IEC TR 24733
2967 are passed the same as decimal scalar types. */
2968 if (TREE_CODE (t
) == RECORD_TYPE
2969 && !processing_template_decl
)
2971 tree ns
= TYPE_CONTEXT (t
);
2972 if (ns
&& TREE_CODE (ns
) == NAMESPACE_DECL
2973 && DECL_CONTEXT (ns
) == std_node
2975 && id_equal (DECL_NAME (ns
), "decimal"))
2977 const char *n
= TYPE_NAME_STRING (t
);
2978 if ((strcmp (n
, "decimal32") == 0)
2979 || (strcmp (n
, "decimal64") == 0)
2980 || (strcmp (n
, "decimal128") == 0))
2981 TYPE_TRANSPARENT_AGGR (t
) = 1;
2985 /* A non-implicit typename comes from code like:
2987 template <typename T> struct A {
2988 template <typename U> struct A<T>::B ...
2990 This is erroneous. */
2991 else if (TREE_CODE (t
) == TYPENAME_TYPE
)
2993 error ("invalid definition of qualified type %qT", t
);
2994 t
= error_mark_node
;
2997 if (t
== error_mark_node
|| ! MAYBE_CLASS_TYPE_P (t
))
2999 t
= make_class_type (RECORD_TYPE
);
3000 pushtag (make_anon_name (), t
, /*tag_scope=*/ts_current
);
3003 if (TYPE_BEING_DEFINED (t
))
3005 t
= make_class_type (TREE_CODE (t
));
3006 pushtag (TYPE_IDENTIFIER (t
), t
, /*tag_scope=*/ts_current
);
3008 maybe_process_partial_specialization (t
);
3010 TYPE_BEING_DEFINED (t
) = 1;
3011 class_binding_level
->defining_class_p
= 1;
3013 if (flag_pack_struct
)
3016 TYPE_PACKED (t
) = 1;
3017 /* Even though the type is being defined for the first time
3018 here, there might have been a forward declaration, so there
3019 might be cv-qualified variants of T. */
3020 for (v
= TYPE_NEXT_VARIANT (t
); v
; v
= TYPE_NEXT_VARIANT (v
))
3021 TYPE_PACKED (v
) = 1;
3023 /* Reset the interface data, at the earliest possible
3024 moment, as it might have been set via a class foo;
3026 if (! TYPE_UNNAMED_P (t
))
3028 struct c_fileinfo
*finfo
= \
3029 get_fileinfo (LOCATION_FILE (input_location
));
3030 CLASSTYPE_INTERFACE_ONLY (t
) = finfo
->interface_only
;
3031 SET_CLASSTYPE_INTERFACE_UNKNOWN_X
3032 (t
, finfo
->interface_unknown
);
3034 reset_specialization();
3036 /* Make a declaration for this class in its own scope. */
3037 build_self_reference ();
3042 /* Finish the member declaration given by DECL. */
3045 finish_member_declaration (tree decl
)
3047 if (decl
== error_mark_node
|| decl
== NULL_TREE
)
3050 if (decl
== void_type_node
)
3051 /* The COMPONENT was a friend, not a member, and so there's
3052 nothing for us to do. */
3055 /* We should see only one DECL at a time. */
3056 gcc_assert (DECL_CHAIN (decl
) == NULL_TREE
);
3058 /* Don't add decls after definition. */
3059 gcc_assert (TYPE_BEING_DEFINED (current_class_type
)
3060 /* We can add lambda types when late parsing default
3062 || LAMBDA_TYPE_P (TREE_TYPE (decl
)));
3064 /* Set up access control for DECL. */
3066 = (current_access_specifier
== access_private_node
);
3067 TREE_PROTECTED (decl
)
3068 = (current_access_specifier
== access_protected_node
);
3069 if (TREE_CODE (decl
) == TEMPLATE_DECL
)
3071 TREE_PRIVATE (DECL_TEMPLATE_RESULT (decl
)) = TREE_PRIVATE (decl
);
3072 TREE_PROTECTED (DECL_TEMPLATE_RESULT (decl
)) = TREE_PROTECTED (decl
);
3075 /* Mark the DECL as a member of the current class, unless it's
3076 a member of an enumeration. */
3077 if (TREE_CODE (decl
) != CONST_DECL
)
3078 DECL_CONTEXT (decl
) = current_class_type
;
3080 if (TREE_CODE (decl
) == USING_DECL
)
3081 /* For now, ignore class-scope USING_DECLS, so that debugging
3082 backends do not see them. */
3083 DECL_IGNORED_P (decl
) = 1;
3085 /* Check for bare parameter packs in the non-static data member
3087 if (TREE_CODE (decl
) == FIELD_DECL
)
3089 if (check_for_bare_parameter_packs (TREE_TYPE (decl
)))
3090 TREE_TYPE (decl
) = error_mark_node
;
3091 if (check_for_bare_parameter_packs (DECL_ATTRIBUTES (decl
)))
3092 DECL_ATTRIBUTES (decl
) = NULL_TREE
;
3097 A C language linkage is ignored for the names of class members
3098 and the member function type of class member functions. */
3099 if (DECL_LANG_SPECIFIC (decl
))
3100 SET_DECL_LANGUAGE (decl
, lang_cplusplus
);
3104 /* Functions and non-functions are added differently. */
3105 if (DECL_DECLARES_FUNCTION_P (decl
))
3106 add
= add_method (current_class_type
, decl
, false);
3107 /* Enter the DECL into the scope of the class, if the class
3108 isn't a closure (whose fields are supposed to be unnamed). */
3109 else if (CLASSTYPE_LAMBDA_EXPR (current_class_type
)
3110 || pushdecl_class_level (decl
))
3115 /* All TYPE_DECLs go at the end of TYPE_FIELDS. Ordinary fields
3116 go at the beginning. The reason is that
3117 legacy_nonfn_member_lookup searches the list in order, and we
3118 want a field name to override a type name so that the "struct
3119 stat hack" will work. In particular:
3121 struct S { enum E { }; static const int E = 5; int ary[S::E]; } s;
3125 if (TREE_CODE (decl
) == TYPE_DECL
)
3126 TYPE_FIELDS (current_class_type
)
3127 = chainon (TYPE_FIELDS (current_class_type
), decl
);
3130 DECL_CHAIN (decl
) = TYPE_FIELDS (current_class_type
);
3131 TYPE_FIELDS (current_class_type
) = decl
;
3134 maybe_add_class_template_decl_list (current_class_type
, decl
,
3139 /* Finish processing a complete template declaration. The PARMS are
3140 the template parameters. */
3143 finish_template_decl (tree parms
)
3146 end_template_decl ();
3148 end_specialization ();
3151 // Returns the template type of the class scope being entered. If we're
3152 // entering a constrained class scope. TYPE is the class template
3153 // scope being entered and we may need to match the intended type with
3154 // a constrained specialization. For example:
3156 // template<Object T>
3157 // struct S { void f(); }; #1
3159 // template<Object T>
3160 // void S<T>::f() { } #2
3162 // We check, in #2, that S<T> refers precisely to the type declared by
3163 // #1 (i.e., that the constraints match). Note that the following should
3164 // be an error since there is no specialization of S<T> that is
3165 // unconstrained, but this is not diagnosed here.
3167 // template<typename T>
3168 // void S<T>::f() { }
3170 // We cannot diagnose this problem here since this function also matches
3171 // qualified template names that are not part of a definition. For example:
3173 // template<Integral T, Floating_point U>
3174 // typename pair<T, U>::first_type void f(T, U);
3176 // Here, it is unlikely that there is a partial specialization of
3177 // pair constrained for for Integral and Floating_point arguments.
3179 // The general rule is: if a constrained specialization with matching
3180 // constraints is found return that type. Also note that if TYPE is not a
3181 // class-type (e.g. a typename type), then no fixup is needed.
3184 fixup_template_type (tree type
)
3186 // Find the template parameter list at the a depth appropriate to
3187 // the scope we're trying to enter.
3188 tree parms
= current_template_parms
;
3189 int depth
= template_class_depth (type
);
3190 for (int n
= processing_template_decl
; n
> depth
&& parms
; --n
)
3191 parms
= TREE_CHAIN (parms
);
3194 tree cur_reqs
= TEMPLATE_PARMS_CONSTRAINTS (parms
);
3195 tree cur_constr
= build_constraints (cur_reqs
, NULL_TREE
);
3197 // Search for a specialization whose type and constraints match.
3198 tree tmpl
= CLASSTYPE_TI_TEMPLATE (type
);
3199 tree specs
= DECL_TEMPLATE_SPECIALIZATIONS (tmpl
);
3202 tree spec_constr
= get_constraints (TREE_VALUE (specs
));
3204 // If the type and constraints match a specialization, then we
3205 // are entering that type.
3206 if (same_type_p (type
, TREE_TYPE (specs
))
3207 && equivalent_constraints (cur_constr
, spec_constr
))
3208 return TREE_TYPE (specs
);
3209 specs
= TREE_CHAIN (specs
);
3212 // If no specialization matches, then must return the type
3213 // previously found.
3217 /* Finish processing a template-id (which names a type) of the form
3218 NAME < ARGS >. Return the TYPE_DECL for the type named by the
3219 template-id. If ENTERING_SCOPE is nonzero we are about to enter
3220 the scope of template-id indicated. */
3223 finish_template_type (tree name
, tree args
, int entering_scope
)
3227 type
= lookup_template_class (name
, args
,
3228 NULL_TREE
, NULL_TREE
, entering_scope
,
3229 tf_warning_or_error
| tf_user
);
3231 /* If we might be entering the scope of a partial specialization,
3232 find the one with the right constraints. */
3235 && CLASS_TYPE_P (type
)
3236 && CLASSTYPE_TEMPLATE_INFO (type
)
3237 && dependent_type_p (type
)
3238 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (type
)))
3239 type
= fixup_template_type (type
);
3241 if (type
== error_mark_node
)
3243 else if (CLASS_TYPE_P (type
) && !alias_type_or_template_p (type
))
3244 return TYPE_STUB_DECL (type
);
3246 return TYPE_NAME (type
);
3249 /* Finish processing a BASE_CLASS with the indicated ACCESS_SPECIFIER.
3250 Return a TREE_LIST containing the ACCESS_SPECIFIER and the
3251 BASE_CLASS, or NULL_TREE if an error occurred. The
3252 ACCESS_SPECIFIER is one of
3253 access_{default,public,protected_private}_node. For a virtual base
3254 we set TREE_TYPE. */
3257 finish_base_specifier (tree base
, tree access
, bool virtual_p
)
3261 if (base
== error_mark_node
)
3263 error ("invalid base-class specification");
3266 else if (! MAYBE_CLASS_TYPE_P (base
))
3268 error ("%qT is not a class type", base
);
3273 if (cp_type_quals (base
) != 0)
3275 /* DR 484: Can a base-specifier name a cv-qualified
3277 base
= TYPE_MAIN_VARIANT (base
);
3279 result
= build_tree_list (access
, base
);
3281 TREE_TYPE (result
) = integer_type_node
;
3287 /* If FNS is a member function, a set of member functions, or a
3288 template-id referring to one or more member functions, return a
3289 BASELINK for FNS, incorporating the current access context.
3290 Otherwise, return FNS unchanged. */
3293 baselink_for_fns (tree fns
)
3298 if (BASELINK_P (fns
)
3299 || error_operand_p (fns
))
3302 scope
= ovl_scope (fns
);
3303 if (!CLASS_TYPE_P (scope
))
3306 cl
= currently_open_derived_class (scope
);
3309 cl
= TYPE_BINFO (cl
);
3310 return build_baselink (cl
, cl
, fns
, /*optype=*/NULL_TREE
);
3313 /* Returns true iff DECL is a variable from a function outside
3317 outer_var_p (tree decl
)
3319 return ((VAR_P (decl
) || TREE_CODE (decl
) == PARM_DECL
)
3320 && DECL_FUNCTION_SCOPE_P (decl
)
3321 /* Don't get confused by temporaries. */
3323 && (DECL_CONTEXT (decl
) != current_function_decl
3324 || parsing_nsdmi ()));
3327 /* As above, but also checks that DECL is automatic. */
3330 outer_automatic_var_p (tree decl
)
3332 return (outer_var_p (decl
)
3333 && !TREE_STATIC (decl
));
3336 /* DECL satisfies outer_automatic_var_p. Possibly complain about it or
3337 rewrite it for lambda capture.
3339 If ODR_USE is true, we're being called from mark_use, and we complain about
3340 use of constant variables. If ODR_USE is false, we're being called for the
3341 id-expression, and we do lambda capture. */
3344 process_outer_var_ref (tree decl
, tsubst_flags_t complain
, bool odr_use
)
3346 if (cp_unevaluated_operand
)
3347 /* It's not a use (3.2) if we're in an unevaluated context. */
3349 if (decl
== error_mark_node
)
3352 tree context
= DECL_CONTEXT (decl
);
3353 tree containing_function
= current_function_decl
;
3354 tree lambda_stack
= NULL_TREE
;
3355 tree lambda_expr
= NULL_TREE
;
3356 tree initializer
= convert_from_reference (decl
);
3358 /* Mark it as used now even if the use is ill-formed. */
3359 if (!mark_used (decl
, complain
))
3360 return error_mark_node
;
3362 if (parsing_nsdmi ())
3363 containing_function
= NULL_TREE
;
3365 if (containing_function
&& LAMBDA_FUNCTION_P (containing_function
))
3367 /* Check whether we've already built a proxy. */
3369 while (is_normal_capture_proxy (var
))
3370 var
= DECL_CAPTURED_VARIABLE (var
);
3371 tree d
= retrieve_local_specialization (var
);
3373 if (d
&& d
!= decl
&& is_capture_proxy (d
))
3375 if (DECL_CONTEXT (d
) == containing_function
)
3376 /* We already have an inner proxy. */
3379 /* We need to capture an outer proxy. */
3380 return process_outer_var_ref (d
, complain
, odr_use
);
3384 /* If we are in a lambda function, we can move out until we hit
3386 2. a non-lambda function, or
3387 3. a non-default capturing lambda function. */
3388 while (context
!= containing_function
3389 /* containing_function can be null with invalid generic lambdas. */
3390 && containing_function
3391 && LAMBDA_FUNCTION_P (containing_function
))
3393 tree closure
= DECL_CONTEXT (containing_function
);
3394 lambda_expr
= CLASSTYPE_LAMBDA_EXPR (closure
);
3396 if (TYPE_CLASS_SCOPE_P (closure
))
3397 /* A lambda in an NSDMI (c++/64496). */
3400 if (LAMBDA_EXPR_DEFAULT_CAPTURE_MODE (lambda_expr
)
3404 lambda_stack
= tree_cons (NULL_TREE
,
3409 = decl_function_context (containing_function
);
3412 /* In a lambda within a template, wait until instantiation
3413 time to implicitly capture. */
3414 if (context
== containing_function
3415 && DECL_TEMPLATE_INFO (containing_function
)
3416 && uses_template_parms (DECL_TI_ARGS (containing_function
)))
3419 if (lambda_expr
&& VAR_P (decl
)
3420 && DECL_ANON_UNION_VAR_P (decl
))
3422 if (complain
& tf_error
)
3423 error ("cannot capture member %qD of anonymous union", decl
);
3424 return error_mark_node
;
3426 /* Do lambda capture when processing the id-expression, not when
3427 odr-using a variable. */
3428 if (!odr_use
&& context
== containing_function
)
3430 decl
= add_default_capture (lambda_stack
,
3431 /*id=*/DECL_NAME (decl
),
3434 /* Only an odr-use of an outer automatic variable causes an
3435 error, and a constant variable can decay to a prvalue
3436 constant without odr-use. So don't complain yet. */
3437 else if (!odr_use
&& decl_constant_var_p (decl
))
3439 else if (lambda_expr
)
3441 if (complain
& tf_error
)
3443 error ("%qD is not captured", decl
);
3444 tree closure
= LAMBDA_EXPR_CLOSURE (lambda_expr
);
3445 if (LAMBDA_EXPR_DEFAULT_CAPTURE_MODE (lambda_expr
)
3447 inform (location_of (closure
),
3448 "the lambda has no capture-default");
3449 else if (TYPE_CLASS_SCOPE_P (closure
))
3450 inform (UNKNOWN_LOCATION
, "lambda in local class %q+T cannot "
3451 "capture variables from the enclosing context",
3452 TYPE_CONTEXT (closure
));
3453 inform (DECL_SOURCE_LOCATION (decl
), "%q#D declared here", decl
);
3455 return error_mark_node
;
3459 if (complain
& tf_error
)
3462 ? G_("use of local variable with automatic storage from "
3463 "containing function")
3464 : G_("use of parameter from containing function"));
3465 inform (DECL_SOURCE_LOCATION (decl
), "%q#D declared here", decl
);
3467 return error_mark_node
;
3472 /* ID_EXPRESSION is a representation of parsed, but unprocessed,
3473 id-expression. (See cp_parser_id_expression for details.) SCOPE,
3474 if non-NULL, is the type or namespace used to explicitly qualify
3475 ID_EXPRESSION. DECL is the entity to which that name has been
3478 *CONSTANT_EXPRESSION_P is true if we are presently parsing a
3479 constant-expression. In that case, *NON_CONSTANT_EXPRESSION_P will
3480 be set to true if this expression isn't permitted in a
3481 constant-expression, but it is otherwise not set by this function.
3482 *ALLOW_NON_CONSTANT_EXPRESSION_P is true if we are parsing a
3483 constant-expression, but a non-constant expression is also
3486 DONE is true if this expression is a complete postfix-expression;
3487 it is false if this expression is followed by '->', '[', '(', etc.
3488 ADDRESS_P is true iff this expression is the operand of '&'.
3489 TEMPLATE_P is true iff the qualified-id was of the form
3490 "A::template B". TEMPLATE_ARG_P is true iff this qualified name
3491 appears as a template argument.
3493 If an error occurs, and it is the kind of error that might cause
3494 the parser to abort a tentative parse, *ERROR_MSG is filled in. It
3495 is the caller's responsibility to issue the message. *ERROR_MSG
3496 will be a string with static storage duration, so the caller need
3499 Return an expression for the entity, after issuing appropriate
3500 diagnostics. This function is also responsible for transforming a
3501 reference to a non-static member into a COMPONENT_REF that makes
3502 the use of "this" explicit.
3504 Upon return, *IDK will be filled in appropriately. */
3506 finish_id_expression (tree id_expression
,
3510 bool integral_constant_expression_p
,
3511 bool allow_non_integral_constant_expression_p
,
3512 bool *non_integral_constant_expression_p
,
3516 bool template_arg_p
,
3517 const char **error_msg
,
3518 location_t location
)
3520 decl
= strip_using_decl (decl
);
3522 /* Initialize the output parameters. */
3523 *idk
= CP_ID_KIND_NONE
;
3526 if (id_expression
== error_mark_node
)
3527 return error_mark_node
;
3528 /* If we have a template-id, then no further lookup is
3529 required. If the template-id was for a template-class, we
3530 will sometimes have a TYPE_DECL at this point. */
3531 else if (TREE_CODE (decl
) == TEMPLATE_ID_EXPR
3532 || TREE_CODE (decl
) == TYPE_DECL
)
3534 /* Look up the name. */
3537 if (decl
== error_mark_node
)
3539 /* Name lookup failed. */
3542 || (!dependent_type_p (scope
)
3543 && !(identifier_p (id_expression
)
3544 && IDENTIFIER_CONV_OP_P (id_expression
)
3545 && dependent_type_p (TREE_TYPE (id_expression
))))))
3547 /* If the qualifying type is non-dependent (and the name
3548 does not name a conversion operator to a dependent
3549 type), issue an error. */
3550 qualified_name_lookup_error (scope
, id_expression
, decl
, location
);
3551 return error_mark_node
;
3555 /* It may be resolved via Koenig lookup. */
3556 *idk
= CP_ID_KIND_UNQUALIFIED
;
3557 return id_expression
;
3560 decl
= id_expression
;
3562 /* If DECL is a variable that would be out of scope under
3563 ANSI/ISO rules, but in scope in the ARM, name lookup
3564 will succeed. Issue a diagnostic here. */
3566 decl
= check_for_out_of_scope_variable (decl
);
3568 /* Remember that the name was used in the definition of
3569 the current class so that we can check later to see if
3570 the meaning would have been different after the class
3571 was entirely defined. */
3572 if (!scope
&& decl
!= error_mark_node
&& identifier_p (id_expression
))
3573 maybe_note_name_used_in_class (id_expression
, decl
);
3575 /* A use in unevaluated operand might not be instantiated appropriately
3576 if tsubst_copy builds a dummy parm, or if we never instantiate a
3577 generic lambda, so mark it now. */
3578 if (processing_template_decl
&& cp_unevaluated_operand
)
3579 mark_type_use (decl
);
3581 /* Disallow uses of local variables from containing functions, except
3582 within lambda-expressions. */
3583 if (outer_automatic_var_p (decl
))
3585 decl
= process_outer_var_ref (decl
, tf_warning_or_error
);
3586 if (decl
== error_mark_node
)
3587 return error_mark_node
;
3590 /* Also disallow uses of function parameters outside the function
3591 body, except inside an unevaluated context (i.e. decltype). */
3592 if (TREE_CODE (decl
) == PARM_DECL
3593 && DECL_CONTEXT (decl
) == NULL_TREE
3594 && !cp_unevaluated_operand
)
3596 *error_msg
= G_("use of parameter outside function body");
3597 return error_mark_node
;
3601 /* If we didn't find anything, or what we found was a type,
3602 then this wasn't really an id-expression. */
3603 if (TREE_CODE (decl
) == TEMPLATE_DECL
3604 && !DECL_FUNCTION_TEMPLATE_P (decl
))
3606 *error_msg
= G_("missing template arguments");
3607 return error_mark_node
;
3609 else if (TREE_CODE (decl
) == TYPE_DECL
3610 || TREE_CODE (decl
) == NAMESPACE_DECL
)
3612 *error_msg
= G_("expected primary-expression");
3613 return error_mark_node
;
3616 /* If the name resolved to a template parameter, there is no
3617 need to look it up again later. */
3618 if ((TREE_CODE (decl
) == CONST_DECL
&& DECL_TEMPLATE_PARM_P (decl
))
3619 || TREE_CODE (decl
) == TEMPLATE_PARM_INDEX
)
3623 *idk
= CP_ID_KIND_NONE
;
3624 if (TREE_CODE (decl
) == TEMPLATE_PARM_INDEX
)
3625 decl
= TEMPLATE_PARM_DECL (decl
);
3626 r
= convert_from_reference (DECL_INITIAL (decl
));
3628 if (integral_constant_expression_p
3629 && !dependent_type_p (TREE_TYPE (decl
))
3630 && !(INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (r
))))
3632 if (!allow_non_integral_constant_expression_p
)
3633 error ("template parameter %qD of type %qT is not allowed in "
3634 "an integral constant expression because it is not of "
3635 "integral or enumeration type", decl
, TREE_TYPE (decl
));
3636 *non_integral_constant_expression_p
= true;
3642 bool dependent_p
= type_dependent_expression_p (decl
);
3644 /* If the declaration was explicitly qualified indicate
3645 that. The semantics of `A::f(3)' are different than
3646 `f(3)' if `f' is virtual. */
3648 ? CP_ID_KIND_QUALIFIED
3649 : (TREE_CODE (decl
) == TEMPLATE_ID_EXPR
3650 ? CP_ID_KIND_TEMPLATE_ID
3652 ? CP_ID_KIND_UNQUALIFIED_DEPENDENT
3653 : CP_ID_KIND_UNQUALIFIED
)));
3657 && any_dependent_type_attributes_p (DECL_ATTRIBUTES (decl
)))
3658 /* Dependent type attributes on the decl mean that the TREE_TYPE is
3659 wrong, so just return the identifier. */
3660 return id_expression
;
3662 if (TREE_CODE (decl
) == NAMESPACE_DECL
)
3664 error ("use of namespace %qD as expression", decl
);
3665 return error_mark_node
;
3667 else if (DECL_CLASS_TEMPLATE_P (decl
))
3669 error ("use of class template %qT as expression", decl
);
3670 return error_mark_node
;
3672 else if (TREE_CODE (decl
) == TREE_LIST
)
3674 /* Ambiguous reference to base members. */
3675 error ("request for member %qD is ambiguous in "
3676 "multiple inheritance lattice", id_expression
);
3677 print_candidates (decl
);
3678 return error_mark_node
;
3681 /* Mark variable-like entities as used. Functions are similarly
3682 marked either below or after overload resolution. */
3684 || TREE_CODE (decl
) == PARM_DECL
3685 || TREE_CODE (decl
) == CONST_DECL
3686 || TREE_CODE (decl
) == RESULT_DECL
)
3687 && !mark_used (decl
))
3688 return error_mark_node
;
3690 /* Only certain kinds of names are allowed in constant
3691 expression. Template parameters have already
3692 been handled above. */
3693 if (! error_operand_p (decl
)
3695 && integral_constant_expression_p
3696 && ! decl_constant_var_p (decl
)
3697 && TREE_CODE (decl
) != CONST_DECL
3698 && ! builtin_valid_in_constant_expr_p (decl
))
3700 if (!allow_non_integral_constant_expression_p
)
3702 error ("%qD cannot appear in a constant-expression", decl
);
3703 return error_mark_node
;
3705 *non_integral_constant_expression_p
= true;
3710 && !cp_unevaluated_operand
3711 && !processing_template_decl
3712 && (TREE_STATIC (decl
) || DECL_EXTERNAL (decl
))
3713 && CP_DECL_THREAD_LOCAL_P (decl
)
3714 && (wrap
= get_tls_wrapper_fn (decl
)))
3716 /* Replace an evaluated use of the thread_local variable with
3717 a call to its wrapper. */
3718 decl
= build_cxx_call (wrap
, 0, NULL
, tf_warning_or_error
);
3720 else if (TREE_CODE (decl
) == TEMPLATE_ID_EXPR
3722 && variable_template_p (TREE_OPERAND (decl
, 0)))
3724 decl
= finish_template_variable (decl
);
3726 decl
= convert_from_reference (decl
);
3730 if (TREE_CODE (decl
) == SCOPE_REF
)
3732 gcc_assert (same_type_p (scope
, TREE_OPERAND (decl
, 0)));
3733 decl
= TREE_OPERAND (decl
, 1);
3736 decl
= (adjust_result_of_qualified_name_lookup
3737 (decl
, scope
, current_nonlambda_class_type()));
3739 if (TREE_CODE (decl
) == FUNCTION_DECL
)
3743 decl
= finish_qualified_id_expr (scope
,
3749 tf_warning_or_error
);
3751 decl
= convert_from_reference (decl
);
3753 else if (TREE_CODE (decl
) == FIELD_DECL
)
3755 /* Since SCOPE is NULL here, this is an unqualified name.
3756 Access checking has been performed during name lookup
3757 already. Turn off checking to avoid duplicate errors. */
3758 push_deferring_access_checks (dk_no_check
);
3759 decl
= finish_non_static_data_member (decl
, NULL_TREE
,
3760 /*qualifying_scope=*/NULL_TREE
);
3761 pop_deferring_access_checks ();
3763 else if (is_overloaded_fn (decl
))
3765 tree first_fn
= get_first_fn (decl
);
3767 if (TREE_CODE (first_fn
) == TEMPLATE_DECL
)
3768 first_fn
= DECL_TEMPLATE_RESULT (first_fn
);
3770 /* [basic.def.odr]: "A function whose name appears as a
3771 potentially-evaluated expression is odr-used if it is the unique
3774 But only mark it if it's a complete postfix-expression; in a call,
3775 ADL might select a different function, and we'll call mark_used in
3778 && !really_overloaded_fn (decl
)
3779 && !mark_used (first_fn
))
3780 return error_mark_node
;
3783 && TREE_CODE (first_fn
) == FUNCTION_DECL
3784 && DECL_FUNCTION_MEMBER_P (first_fn
)
3785 && !shared_member_p (decl
))
3787 /* A set of member functions. */
3788 decl
= maybe_dummy_object (DECL_CONTEXT (first_fn
), 0);
3789 return finish_class_member_access_expr (decl
, id_expression
,
3790 /*template_p=*/false,
3791 tf_warning_or_error
);
3794 decl
= baselink_for_fns (decl
);
3798 if (DECL_P (decl
) && DECL_NONLOCAL (decl
)
3799 && DECL_CLASS_SCOPE_P (decl
))
3801 tree context
= context_for_name_lookup (decl
);
3802 if (context
!= current_class_type
)
3804 tree path
= currently_open_derived_class (context
);
3805 perform_or_defer_access_check (TYPE_BINFO (path
),
3807 tf_warning_or_error
);
3811 decl
= convert_from_reference (decl
);
3815 return cp_expr (decl
, location
);
3818 /* Implement the __typeof keyword: Return the type of EXPR, suitable for
3819 use as a type-specifier. */
3822 finish_typeof (tree expr
)
3826 if (type_dependent_expression_p (expr
))
3828 type
= cxx_make_type (TYPEOF_TYPE
);
3829 TYPEOF_TYPE_EXPR (type
) = expr
;
3830 SET_TYPE_STRUCTURAL_EQUALITY (type
);
3835 expr
= mark_type_use (expr
);
3837 type
= unlowered_expr_type (expr
);
3839 if (!type
|| type
== unknown_type_node
)
3841 error ("type of %qE is unknown", expr
);
3842 return error_mark_node
;
3848 /* Implement the __underlying_type keyword: Return the underlying
3849 type of TYPE, suitable for use as a type-specifier. */
3852 finish_underlying_type (tree type
)
3854 tree underlying_type
;
3856 if (processing_template_decl
)
3858 underlying_type
= cxx_make_type (UNDERLYING_TYPE
);
3859 UNDERLYING_TYPE_TYPE (underlying_type
) = type
;
3860 SET_TYPE_STRUCTURAL_EQUALITY (underlying_type
);
3862 return underlying_type
;
3865 if (!complete_type_or_else (type
, NULL_TREE
))
3866 return error_mark_node
;
3868 if (TREE_CODE (type
) != ENUMERAL_TYPE
)
3870 error ("%qT is not an enumeration type", type
);
3871 return error_mark_node
;
3874 underlying_type
= ENUM_UNDERLYING_TYPE (type
);
3876 /* Fixup necessary in this case because ENUM_UNDERLYING_TYPE
3877 includes TYPE_MIN_VALUE and TYPE_MAX_VALUE information.
3878 See finish_enum_value_list for details. */
3879 if (!ENUM_FIXED_UNDERLYING_TYPE_P (type
))
3881 = c_common_type_for_mode (TYPE_MODE (underlying_type
),
3882 TYPE_UNSIGNED (underlying_type
));
3884 return underlying_type
;
3887 /* Implement the __direct_bases keyword: Return the direct base classes
3891 calculate_direct_bases (tree type
)
3893 vec
<tree
, va_gc
> *vector
= make_tree_vector();
3894 tree bases_vec
= NULL_TREE
;
3895 vec
<tree
, va_gc
> *base_binfos
;
3899 complete_type (type
);
3901 if (!NON_UNION_CLASS_TYPE_P (type
))
3902 return make_tree_vec (0);
3904 base_binfos
= BINFO_BASE_BINFOS (TYPE_BINFO (type
));
3906 /* Virtual bases are initialized first */
3907 for (i
= 0; base_binfos
->iterate (i
, &binfo
); i
++)
3909 if (BINFO_VIRTUAL_P (binfo
))
3911 vec_safe_push (vector
, binfo
);
3915 /* Now non-virtuals */
3916 for (i
= 0; base_binfos
->iterate (i
, &binfo
); i
++)
3918 if (!BINFO_VIRTUAL_P (binfo
))
3920 vec_safe_push (vector
, binfo
);
3925 bases_vec
= make_tree_vec (vector
->length ());
3927 for (i
= 0; i
< vector
->length (); ++i
)
3929 TREE_VEC_ELT (bases_vec
, i
) = BINFO_TYPE ((*vector
)[i
]);
3934 /* Implement the __bases keyword: Return the base classes
3937 /* Find morally non-virtual base classes by walking binfo hierarchy */
3938 /* Virtual base classes are handled separately in finish_bases */
3941 dfs_calculate_bases_pre (tree binfo
, void * /*data_*/)
3943 /* Don't walk bases of virtual bases */
3944 return BINFO_VIRTUAL_P (binfo
) ? dfs_skip_bases
: NULL_TREE
;
3948 dfs_calculate_bases_post (tree binfo
, void *data_
)
3950 vec
<tree
, va_gc
> **data
= ((vec
<tree
, va_gc
> **) data_
);
3951 if (!BINFO_VIRTUAL_P (binfo
))
3953 vec_safe_push (*data
, BINFO_TYPE (binfo
));
3958 /* Calculates the morally non-virtual base classes of a class */
3959 static vec
<tree
, va_gc
> *
3960 calculate_bases_helper (tree type
)
3962 vec
<tree
, va_gc
> *vector
= make_tree_vector();
3964 /* Now add non-virtual base classes in order of construction */
3965 if (TYPE_BINFO (type
))
3966 dfs_walk_all (TYPE_BINFO (type
),
3967 dfs_calculate_bases_pre
, dfs_calculate_bases_post
, &vector
);
3972 calculate_bases (tree type
)
3974 vec
<tree
, va_gc
> *vector
= make_tree_vector();
3975 tree bases_vec
= NULL_TREE
;
3977 vec
<tree
, va_gc
> *vbases
;
3978 vec
<tree
, va_gc
> *nonvbases
;
3981 complete_type (type
);
3983 if (!NON_UNION_CLASS_TYPE_P (type
))
3984 return make_tree_vec (0);
3986 /* First go through virtual base classes */
3987 for (vbases
= CLASSTYPE_VBASECLASSES (type
), i
= 0;
3988 vec_safe_iterate (vbases
, i
, &binfo
); i
++)
3990 vec
<tree
, va_gc
> *vbase_bases
;
3991 vbase_bases
= calculate_bases_helper (BINFO_TYPE (binfo
));
3992 vec_safe_splice (vector
, vbase_bases
);
3993 release_tree_vector (vbase_bases
);
3996 /* Now for the non-virtual bases */
3997 nonvbases
= calculate_bases_helper (type
);
3998 vec_safe_splice (vector
, nonvbases
);
3999 release_tree_vector (nonvbases
);
4001 /* Note that during error recovery vector->length can even be zero. */
4002 if (vector
->length () > 1)
4004 /* Last element is entire class, so don't copy */
4005 bases_vec
= make_tree_vec (vector
->length() - 1);
4007 for (i
= 0; i
< vector
->length () - 1; ++i
)
4008 TREE_VEC_ELT (bases_vec
, i
) = (*vector
)[i
];
4011 bases_vec
= make_tree_vec (0);
4013 release_tree_vector (vector
);
4018 finish_bases (tree type
, bool direct
)
4020 tree bases
= NULL_TREE
;
4022 if (!processing_template_decl
)
4024 /* Parameter packs can only be used in templates */
4025 error ("Parameter pack __bases only valid in template declaration");
4026 return error_mark_node
;
4029 bases
= cxx_make_type (BASES
);
4030 BASES_TYPE (bases
) = type
;
4031 BASES_DIRECT (bases
) = direct
;
4032 SET_TYPE_STRUCTURAL_EQUALITY (bases
);
4037 /* Perform C++-specific checks for __builtin_offsetof before calling
4041 finish_offsetof (tree object_ptr
, tree expr
, location_t loc
)
4043 /* If we're processing a template, we can't finish the semantics yet.
4044 Otherwise we can fold the entire expression now. */
4045 if (processing_template_decl
)
4047 expr
= build2 (OFFSETOF_EXPR
, size_type_node
, expr
, object_ptr
);
4048 SET_EXPR_LOCATION (expr
, loc
);
4052 if (TREE_CODE (expr
) == PSEUDO_DTOR_EXPR
)
4054 error ("cannot apply %<offsetof%> to destructor %<~%T%>",
4055 TREE_OPERAND (expr
, 2));
4056 return error_mark_node
;
4058 if (TREE_CODE (TREE_TYPE (expr
)) == FUNCTION_TYPE
4059 || TREE_CODE (TREE_TYPE (expr
)) == METHOD_TYPE
4060 || TREE_TYPE (expr
) == unknown_type_node
)
4062 if (INDIRECT_REF_P (expr
))
4063 error ("second operand of %<offsetof%> is neither a single "
4064 "identifier nor a sequence of member accesses and "
4065 "array references");
4068 if (TREE_CODE (expr
) == COMPONENT_REF
4069 || TREE_CODE (expr
) == COMPOUND_EXPR
)
4070 expr
= TREE_OPERAND (expr
, 1);
4071 error ("cannot apply %<offsetof%> to member function %qD", expr
);
4073 return error_mark_node
;
4075 if (TREE_CODE (expr
) == CONST_DECL
)
4077 error ("cannot apply %<offsetof%> to an enumerator %qD", expr
);
4078 return error_mark_node
;
4080 if (REFERENCE_REF_P (expr
))
4081 expr
= TREE_OPERAND (expr
, 0);
4082 if (!complete_type_or_else (TREE_TYPE (TREE_TYPE (object_ptr
)), object_ptr
))
4083 return error_mark_node
;
4084 if (warn_invalid_offsetof
4085 && CLASS_TYPE_P (TREE_TYPE (TREE_TYPE (object_ptr
)))
4086 && CLASSTYPE_NON_STD_LAYOUT (TREE_TYPE (TREE_TYPE (object_ptr
)))
4087 && cp_unevaluated_operand
== 0)
4088 pedwarn (loc
, OPT_Winvalid_offsetof
,
4089 "offsetof within non-standard-layout type %qT is undefined",
4090 TREE_TYPE (TREE_TYPE (object_ptr
)));
4091 return fold_offsetof (expr
);
4094 /* Replace the AGGR_INIT_EXPR at *TP with an equivalent CALL_EXPR. This
4095 function is broken out from the above for the benefit of the tree-ssa
4099 simplify_aggr_init_expr (tree
*tp
)
4101 tree aggr_init_expr
= *tp
;
4103 /* Form an appropriate CALL_EXPR. */
4104 tree fn
= AGGR_INIT_EXPR_FN (aggr_init_expr
);
4105 tree slot
= AGGR_INIT_EXPR_SLOT (aggr_init_expr
);
4106 tree type
= TREE_TYPE (slot
);
4109 enum style_t
{ ctor
, arg
, pcc
} style
;
4111 if (AGGR_INIT_VIA_CTOR_P (aggr_init_expr
))
4113 #ifdef PCC_STATIC_STRUCT_RETURN
4119 gcc_assert (TREE_ADDRESSABLE (type
));
4123 call_expr
= build_call_array_loc (input_location
,
4124 TREE_TYPE (TREE_TYPE (TREE_TYPE (fn
))),
4126 aggr_init_expr_nargs (aggr_init_expr
),
4127 AGGR_INIT_EXPR_ARGP (aggr_init_expr
));
4128 TREE_NOTHROW (call_expr
) = TREE_NOTHROW (aggr_init_expr
);
4129 CALL_FROM_THUNK_P (call_expr
) = AGGR_INIT_FROM_THUNK_P (aggr_init_expr
);
4130 CALL_EXPR_OPERATOR_SYNTAX (call_expr
)
4131 = CALL_EXPR_OPERATOR_SYNTAX (aggr_init_expr
);
4132 CALL_EXPR_ORDERED_ARGS (call_expr
) = CALL_EXPR_ORDERED_ARGS (aggr_init_expr
);
4133 CALL_EXPR_REVERSE_ARGS (call_expr
) = CALL_EXPR_REVERSE_ARGS (aggr_init_expr
);
4137 /* Replace the first argument to the ctor with the address of the
4139 cxx_mark_addressable (slot
);
4140 CALL_EXPR_ARG (call_expr
, 0) =
4141 build1 (ADDR_EXPR
, build_pointer_type (type
), slot
);
4143 else if (style
== arg
)
4145 /* Just mark it addressable here, and leave the rest to
4146 expand_call{,_inline}. */
4147 cxx_mark_addressable (slot
);
4148 CALL_EXPR_RETURN_SLOT_OPT (call_expr
) = true;
4149 call_expr
= build2 (INIT_EXPR
, TREE_TYPE (call_expr
), slot
, call_expr
);
4151 else if (style
== pcc
)
4153 /* If we're using the non-reentrant PCC calling convention, then we
4154 need to copy the returned value out of the static buffer into the
4156 push_deferring_access_checks (dk_no_check
);
4157 call_expr
= build_aggr_init (slot
, call_expr
,
4158 DIRECT_BIND
| LOOKUP_ONLYCONVERTING
,
4159 tf_warning_or_error
);
4160 pop_deferring_access_checks ();
4161 call_expr
= build2 (COMPOUND_EXPR
, TREE_TYPE (slot
), call_expr
, slot
);
4164 if (AGGR_INIT_ZERO_FIRST (aggr_init_expr
))
4166 tree init
= build_zero_init (type
, NULL_TREE
,
4167 /*static_storage_p=*/false);
4168 init
= build2 (INIT_EXPR
, void_type_node
, slot
, init
);
4169 call_expr
= build2 (COMPOUND_EXPR
, TREE_TYPE (call_expr
),
4176 /* Emit all thunks to FN that should be emitted when FN is emitted. */
4179 emit_associated_thunks (tree fn
)
4181 /* When we use vcall offsets, we emit thunks with the virtual
4182 functions to which they thunk. The whole point of vcall offsets
4183 is so that you can know statically the entire set of thunks that
4184 will ever be needed for a given virtual function, thereby
4185 enabling you to output all the thunks with the function itself. */
4186 if (DECL_VIRTUAL_P (fn
)
4187 /* Do not emit thunks for extern template instantiations. */
4188 && ! DECL_REALLY_EXTERN (fn
))
4192 for (thunk
= DECL_THUNKS (fn
); thunk
; thunk
= DECL_CHAIN (thunk
))
4194 if (!THUNK_ALIAS (thunk
))
4196 use_thunk (thunk
, /*emit_p=*/1);
4197 if (DECL_RESULT_THUNK_P (thunk
))
4201 for (probe
= DECL_THUNKS (thunk
);
4202 probe
; probe
= DECL_CHAIN (probe
))
4203 use_thunk (probe
, /*emit_p=*/1);
4207 gcc_assert (!DECL_THUNKS (thunk
));
4212 /* Generate RTL for FN. */
4215 expand_or_defer_fn_1 (tree fn
)
4217 /* When the parser calls us after finishing the body of a template
4218 function, we don't really want to expand the body. */
4219 if (processing_template_decl
)
4221 /* Normally, collection only occurs in rest_of_compilation. So,
4222 if we don't collect here, we never collect junk generated
4223 during the processing of templates until we hit a
4224 non-template function. It's not safe to do this inside a
4225 nested class, though, as the parser may have local state that
4226 is not a GC root. */
4227 if (!function_depth
)
4232 gcc_assert (DECL_SAVED_TREE (fn
));
4234 /* We make a decision about linkage for these functions at the end
4235 of the compilation. Until that point, we do not want the back
4236 end to output them -- but we do want it to see the bodies of
4237 these functions so that it can inline them as appropriate. */
4238 if (DECL_DECLARED_INLINE_P (fn
) || DECL_IMPLICIT_INSTANTIATION (fn
))
4240 if (DECL_INTERFACE_KNOWN (fn
))
4241 /* We've already made a decision as to how this function will
4244 tentative_decl_linkage (fn
);
4246 import_export_decl (fn
);
4248 /* If the user wants us to keep all inline functions, then mark
4249 this function as needed so that finish_file will make sure to
4250 output it later. Similarly, all dllexport'd functions must
4251 be emitted; there may be callers in other DLLs. */
4252 if (DECL_DECLARED_INLINE_P (fn
)
4253 && !DECL_REALLY_EXTERN (fn
)
4254 && (flag_keep_inline_functions
4255 || (flag_keep_inline_dllexport
4256 && lookup_attribute ("dllexport", DECL_ATTRIBUTES (fn
)))))
4259 DECL_EXTERNAL (fn
) = 0;
4263 /* If this is a constructor or destructor body, we have to clone
4265 if (maybe_clone_body (fn
))
4267 /* We don't want to process FN again, so pretend we've written
4268 it out, even though we haven't. */
4269 TREE_ASM_WRITTEN (fn
) = 1;
4270 /* If this is a constexpr function, keep DECL_SAVED_TREE. */
4271 if (!DECL_DECLARED_CONSTEXPR_P (fn
))
4272 DECL_SAVED_TREE (fn
) = NULL_TREE
;
4276 /* There's no reason to do any of the work here if we're only doing
4277 semantic analysis; this code just generates RTL. */
4278 if (flag_syntax_only
)
4285 expand_or_defer_fn (tree fn
)
4287 if (expand_or_defer_fn_1 (fn
))
4291 /* Expand or defer, at the whim of the compilation unit manager. */
4292 cgraph_node::finalize_function (fn
, function_depth
> 1);
4293 emit_associated_thunks (fn
);
4301 nrv_data () : visited (37) {}
4305 hash_table
<nofree_ptr_hash
<tree_node
> > visited
;
4308 /* Helper function for walk_tree, used by finalize_nrv below. */
4311 finalize_nrv_r (tree
* tp
, int* walk_subtrees
, void* data
)
4313 struct nrv_data
*dp
= (struct nrv_data
*)data
;
4316 /* No need to walk into types. There wouldn't be any need to walk into
4317 non-statements, except that we have to consider STMT_EXPRs. */
4320 /* Change all returns to just refer to the RESULT_DECL; this is a nop,
4321 but differs from using NULL_TREE in that it indicates that we care
4322 about the value of the RESULT_DECL. */
4323 else if (TREE_CODE (*tp
) == RETURN_EXPR
)
4324 TREE_OPERAND (*tp
, 0) = dp
->result
;
4325 /* Change all cleanups for the NRV to only run when an exception is
4327 else if (TREE_CODE (*tp
) == CLEANUP_STMT
4328 && CLEANUP_DECL (*tp
) == dp
->var
)
4329 CLEANUP_EH_ONLY (*tp
) = 1;
4330 /* Replace the DECL_EXPR for the NRV with an initialization of the
4331 RESULT_DECL, if needed. */
4332 else if (TREE_CODE (*tp
) == DECL_EXPR
4333 && DECL_EXPR_DECL (*tp
) == dp
->var
)
4336 if (DECL_INITIAL (dp
->var
)
4337 && DECL_INITIAL (dp
->var
) != error_mark_node
)
4338 init
= build2 (INIT_EXPR
, void_type_node
, dp
->result
,
4339 DECL_INITIAL (dp
->var
));
4341 init
= build_empty_stmt (EXPR_LOCATION (*tp
));
4342 DECL_INITIAL (dp
->var
) = NULL_TREE
;
4343 SET_EXPR_LOCATION (init
, EXPR_LOCATION (*tp
));
4346 /* And replace all uses of the NRV with the RESULT_DECL. */
4347 else if (*tp
== dp
->var
)
4350 /* Avoid walking into the same tree more than once. Unfortunately, we
4351 can't just use walk_tree_without duplicates because it would only call
4352 us for the first occurrence of dp->var in the function body. */
4353 slot
= dp
->visited
.find_slot (*tp
, INSERT
);
4359 /* Keep iterating. */
4363 /* Called from finish_function to implement the named return value
4364 optimization by overriding all the RETURN_EXPRs and pertinent
4365 CLEANUP_STMTs and replacing all occurrences of VAR with RESULT, the
4366 RESULT_DECL for the function. */
4369 finalize_nrv (tree
*tp
, tree var
, tree result
)
4371 struct nrv_data data
;
4373 /* Copy name from VAR to RESULT. */
4374 DECL_NAME (result
) = DECL_NAME (var
);
4375 /* Don't forget that we take its address. */
4376 TREE_ADDRESSABLE (result
) = TREE_ADDRESSABLE (var
);
4377 /* Finally set DECL_VALUE_EXPR to avoid assigning
4378 a stack slot at -O0 for the original var and debug info
4379 uses RESULT location for VAR. */
4380 SET_DECL_VALUE_EXPR (var
, result
);
4381 DECL_HAS_VALUE_EXPR_P (var
) = 1;
4384 data
.result
= result
;
4385 cp_walk_tree (tp
, finalize_nrv_r
, &data
, 0);
4388 /* Create CP_OMP_CLAUSE_INFO for clause C. Returns true if it is invalid. */
4391 cxx_omp_create_clause_info (tree c
, tree type
, bool need_default_ctor
,
4392 bool need_copy_ctor
, bool need_copy_assignment
,
4395 int save_errorcount
= errorcount
;
4398 /* Always allocate 3 elements for simplicity. These are the
4399 function decls for the ctor, dtor, and assignment op.
4400 This layout is known to the three lang hooks,
4401 cxx_omp_clause_default_init, cxx_omp_clause_copy_init,
4402 and cxx_omp_clause_assign_op. */
4403 info
= make_tree_vec (3);
4404 CP_OMP_CLAUSE_INFO (c
) = info
;
4406 if (need_default_ctor
|| need_copy_ctor
)
4408 if (need_default_ctor
)
4409 t
= get_default_ctor (type
);
4411 t
= get_copy_ctor (type
, tf_warning_or_error
);
4413 if (t
&& !trivial_fn_p (t
))
4414 TREE_VEC_ELT (info
, 0) = t
;
4417 if (need_dtor
&& TYPE_HAS_NONTRIVIAL_DESTRUCTOR (type
))
4418 TREE_VEC_ELT (info
, 1) = get_dtor (type
, tf_warning_or_error
);
4420 if (need_copy_assignment
)
4422 t
= get_copy_assign (type
);
4424 if (t
&& !trivial_fn_p (t
))
4425 TREE_VEC_ELT (info
, 2) = t
;
4428 return errorcount
!= save_errorcount
;
4431 /* If DECL is DECL_OMP_PRIVATIZED_MEMBER, return corresponding
4432 FIELD_DECL, otherwise return DECL itself. */
4435 omp_clause_decl_field (tree decl
)
4438 && DECL_HAS_VALUE_EXPR_P (decl
)
4439 && DECL_ARTIFICIAL (decl
)
4440 && DECL_LANG_SPECIFIC (decl
)
4441 && DECL_OMP_PRIVATIZED_MEMBER (decl
))
4443 tree f
= DECL_VALUE_EXPR (decl
);
4444 if (INDIRECT_REF_P (f
))
4445 f
= TREE_OPERAND (f
, 0);
4446 if (TREE_CODE (f
) == COMPONENT_REF
)
4448 f
= TREE_OPERAND (f
, 1);
4449 gcc_assert (TREE_CODE (f
) == FIELD_DECL
);
4456 /* Adjust DECL if needed for printing using %qE. */
4459 omp_clause_printable_decl (tree decl
)
4461 tree t
= omp_clause_decl_field (decl
);
4467 /* For a FIELD_DECL F and corresponding DECL_OMP_PRIVATIZED_MEMBER
4468 VAR_DECL T that doesn't need a DECL_EXPR added, record it for
4472 omp_note_field_privatization (tree f
, tree t
)
4474 if (!omp_private_member_map
)
4475 omp_private_member_map
= new hash_map
<tree
, tree
>;
4476 tree
&v
= omp_private_member_map
->get_or_insert (f
);
4480 omp_private_member_vec
.safe_push (f
);
4481 /* Signal that we don't want to create DECL_EXPR for this dummy var. */
4482 omp_private_member_vec
.safe_push (integer_zero_node
);
4486 /* Privatize FIELD_DECL T, return corresponding DECL_OMP_PRIVATIZED_MEMBER
4490 omp_privatize_field (tree t
, bool shared
)
4492 tree m
= finish_non_static_data_member (t
, NULL_TREE
, NULL_TREE
);
4493 if (m
== error_mark_node
)
4494 return error_mark_node
;
4495 if (!omp_private_member_map
&& !shared
)
4496 omp_private_member_map
= new hash_map
<tree
, tree
>;
4497 if (TREE_CODE (TREE_TYPE (t
)) == REFERENCE_TYPE
)
4499 gcc_assert (INDIRECT_REF_P (m
));
4500 m
= TREE_OPERAND (m
, 0);
4502 tree vb
= NULL_TREE
;
4503 tree
&v
= shared
? vb
: omp_private_member_map
->get_or_insert (t
);
4506 v
= create_temporary_var (TREE_TYPE (m
));
4507 retrofit_lang_decl (v
);
4508 DECL_OMP_PRIVATIZED_MEMBER (v
) = 1;
4509 SET_DECL_VALUE_EXPR (v
, m
);
4510 DECL_HAS_VALUE_EXPR_P (v
) = 1;
4512 omp_private_member_vec
.safe_push (t
);
4517 /* Helper function for handle_omp_array_sections. Called recursively
4518 to handle multiple array-section-subscripts. C is the clause,
4519 T current expression (initially OMP_CLAUSE_DECL), which is either
4520 a TREE_LIST for array-section-subscript (TREE_PURPOSE is low-bound
4521 expression if specified, TREE_VALUE length expression if specified,
4522 TREE_CHAIN is what it has been specified after, or some decl.
4523 TYPES vector is populated with array section types, MAYBE_ZERO_LEN
4524 set to true if any of the array-section-subscript could have length
4525 of zero (explicit or implicit), FIRST_NON_ONE is the index of the
4526 first array-section-subscript which is known not to have length
4528 map(a[:b][2:1][:c][:2][:d][e:f][2:5])
4529 FIRST_NON_ONE will be 3, array-section-subscript [:b], [2:1] and [:c]
4530 all are or may have length of 1, array-section-subscript [:2] is the
4531 first one known not to have length 1. For array-section-subscript
4532 <= FIRST_NON_ONE we diagnose non-contiguous arrays if low bound isn't
4533 0 or length isn't the array domain max + 1, for > FIRST_NON_ONE we
4534 can if MAYBE_ZERO_LEN is false. MAYBE_ZERO_LEN will be true in the above
4535 case though, as some lengths could be zero. */
4538 handle_omp_array_sections_1 (tree c
, tree t
, vec
<tree
> &types
,
4539 bool &maybe_zero_len
, unsigned int &first_non_one
,
4540 enum c_omp_region_type ort
)
4542 tree ret
, low_bound
, length
, type
;
4543 if (TREE_CODE (t
) != TREE_LIST
)
4545 if (error_operand_p (t
))
4546 return error_mark_node
;
4547 if (REFERENCE_REF_P (t
)
4548 && TREE_CODE (TREE_OPERAND (t
, 0)) == COMPONENT_REF
)
4549 t
= TREE_OPERAND (t
, 0);
4551 if (TREE_CODE (t
) == COMPONENT_REF
4553 && (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_MAP
4554 || OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_TO
4555 || OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_FROM
)
4556 && !type_dependent_expression_p (t
))
4558 if (TREE_CODE (TREE_OPERAND (t
, 1)) == FIELD_DECL
4559 && DECL_BIT_FIELD (TREE_OPERAND (t
, 1)))
4561 error_at (OMP_CLAUSE_LOCATION (c
),
4562 "bit-field %qE in %qs clause",
4563 t
, omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4564 return error_mark_node
;
4566 while (TREE_CODE (t
) == COMPONENT_REF
)
4568 if (TREE_TYPE (TREE_OPERAND (t
, 0))
4569 && TREE_CODE (TREE_TYPE (TREE_OPERAND (t
, 0))) == UNION_TYPE
)
4571 error_at (OMP_CLAUSE_LOCATION (c
),
4572 "%qE is a member of a union", t
);
4573 return error_mark_node
;
4575 t
= TREE_OPERAND (t
, 0);
4577 if (REFERENCE_REF_P (t
))
4578 t
= TREE_OPERAND (t
, 0);
4580 if (!VAR_P (t
) && TREE_CODE (t
) != PARM_DECL
)
4582 if (processing_template_decl
&& TREE_CODE (t
) != OVERLOAD
)
4585 error_at (OMP_CLAUSE_LOCATION (c
),
4586 "%qD is not a variable in %qs clause", t
,
4587 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4589 error_at (OMP_CLAUSE_LOCATION (c
),
4590 "%qE is not a variable in %qs clause", t
,
4591 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4592 return error_mark_node
;
4594 else if (TREE_CODE (t
) == PARM_DECL
4595 && DECL_ARTIFICIAL (t
)
4596 && DECL_NAME (t
) == this_identifier
)
4598 error_at (OMP_CLAUSE_LOCATION (c
),
4599 "%<this%> allowed in OpenMP only in %<declare simd%>"
4601 return error_mark_node
;
4603 else if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_DEPEND
4604 && VAR_P (t
) && CP_DECL_THREAD_LOCAL_P (t
))
4606 error_at (OMP_CLAUSE_LOCATION (c
),
4607 "%qD is threadprivate variable in %qs clause", t
,
4608 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4609 return error_mark_node
;
4611 if (type_dependent_expression_p (ret
))
4613 ret
= convert_from_reference (ret
);
4617 if (ort
== C_ORT_OMP
4618 && OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_REDUCTION
4619 && TREE_CODE (TREE_CHAIN (t
)) == FIELD_DECL
)
4620 TREE_CHAIN (t
) = omp_privatize_field (TREE_CHAIN (t
), false);
4621 ret
= handle_omp_array_sections_1 (c
, TREE_CHAIN (t
), types
,
4622 maybe_zero_len
, first_non_one
, ort
);
4623 if (ret
== error_mark_node
|| ret
== NULL_TREE
)
4626 type
= TREE_TYPE (ret
);
4627 low_bound
= TREE_PURPOSE (t
);
4628 length
= TREE_VALUE (t
);
4629 if ((low_bound
&& type_dependent_expression_p (low_bound
))
4630 || (length
&& type_dependent_expression_p (length
)))
4633 if (low_bound
== error_mark_node
|| length
== error_mark_node
)
4634 return error_mark_node
;
4636 if (low_bound
&& !INTEGRAL_TYPE_P (TREE_TYPE (low_bound
)))
4638 error_at (OMP_CLAUSE_LOCATION (c
),
4639 "low bound %qE of array section does not have integral type",
4641 return error_mark_node
;
4643 if (length
&& !INTEGRAL_TYPE_P (TREE_TYPE (length
)))
4645 error_at (OMP_CLAUSE_LOCATION (c
),
4646 "length %qE of array section does not have integral type",
4648 return error_mark_node
;
4651 low_bound
= mark_rvalue_use (low_bound
);
4653 length
= mark_rvalue_use (length
);
4654 /* We need to reduce to real constant-values for checks below. */
4656 length
= fold_simple (length
);
4658 low_bound
= fold_simple (low_bound
);
4660 && TREE_CODE (low_bound
) == INTEGER_CST
4661 && TYPE_PRECISION (TREE_TYPE (low_bound
))
4662 > TYPE_PRECISION (sizetype
))
4663 low_bound
= fold_convert (sizetype
, low_bound
);
4665 && TREE_CODE (length
) == INTEGER_CST
4666 && TYPE_PRECISION (TREE_TYPE (length
))
4667 > TYPE_PRECISION (sizetype
))
4668 length
= fold_convert (sizetype
, length
);
4669 if (low_bound
== NULL_TREE
)
4670 low_bound
= integer_zero_node
;
4672 if (length
!= NULL_TREE
)
4674 if (!integer_nonzerop (length
))
4676 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_DEPEND
4677 || OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_REDUCTION
)
4679 if (integer_zerop (length
))
4681 error_at (OMP_CLAUSE_LOCATION (c
),
4682 "zero length array section in %qs clause",
4683 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4684 return error_mark_node
;
4688 maybe_zero_len
= true;
4690 if (first_non_one
== types
.length ()
4691 && (TREE_CODE (length
) != INTEGER_CST
|| integer_onep (length
)))
4694 if (TREE_CODE (type
) == ARRAY_TYPE
)
4696 if (length
== NULL_TREE
4697 && (TYPE_DOMAIN (type
) == NULL_TREE
4698 || TYPE_MAX_VALUE (TYPE_DOMAIN (type
)) == NULL_TREE
))
4700 error_at (OMP_CLAUSE_LOCATION (c
),
4701 "for unknown bound array type length expression must "
4703 return error_mark_node
;
4705 if (TREE_CODE (low_bound
) == INTEGER_CST
4706 && tree_int_cst_sgn (low_bound
) == -1)
4708 error_at (OMP_CLAUSE_LOCATION (c
),
4709 "negative low bound in array section in %qs clause",
4710 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4711 return error_mark_node
;
4713 if (length
!= NULL_TREE
4714 && TREE_CODE (length
) == INTEGER_CST
4715 && tree_int_cst_sgn (length
) == -1)
4717 error_at (OMP_CLAUSE_LOCATION (c
),
4718 "negative length in array section in %qs clause",
4719 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4720 return error_mark_node
;
4722 if (TYPE_DOMAIN (type
)
4723 && TYPE_MAX_VALUE (TYPE_DOMAIN (type
))
4724 && TREE_CODE (TYPE_MAX_VALUE (TYPE_DOMAIN (type
)))
4728 = fold_convert (sizetype
, TYPE_MAX_VALUE (TYPE_DOMAIN (type
)));
4729 size
= size_binop (PLUS_EXPR
, size
, size_one_node
);
4730 if (TREE_CODE (low_bound
) == INTEGER_CST
)
4732 if (tree_int_cst_lt (size
, low_bound
))
4734 error_at (OMP_CLAUSE_LOCATION (c
),
4735 "low bound %qE above array section size "
4736 "in %qs clause", low_bound
,
4737 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4738 return error_mark_node
;
4740 if (tree_int_cst_equal (size
, low_bound
))
4742 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_DEPEND
4743 || OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_REDUCTION
)
4745 error_at (OMP_CLAUSE_LOCATION (c
),
4746 "zero length array section in %qs clause",
4747 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4748 return error_mark_node
;
4750 maybe_zero_len
= true;
4752 else if (length
== NULL_TREE
4753 && first_non_one
== types
.length ()
4754 && tree_int_cst_equal
4755 (TYPE_MAX_VALUE (TYPE_DOMAIN (type
)),
4759 else if (length
== NULL_TREE
)
4761 if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_DEPEND
4762 && OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_REDUCTION
)
4763 maybe_zero_len
= true;
4764 if (first_non_one
== types
.length ())
4767 if (length
&& TREE_CODE (length
) == INTEGER_CST
)
4769 if (tree_int_cst_lt (size
, length
))
4771 error_at (OMP_CLAUSE_LOCATION (c
),
4772 "length %qE above array section size "
4773 "in %qs clause", length
,
4774 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4775 return error_mark_node
;
4777 if (TREE_CODE (low_bound
) == INTEGER_CST
)
4780 = size_binop (PLUS_EXPR
,
4781 fold_convert (sizetype
, low_bound
),
4782 fold_convert (sizetype
, length
));
4783 if (TREE_CODE (lbpluslen
) == INTEGER_CST
4784 && tree_int_cst_lt (size
, lbpluslen
))
4786 error_at (OMP_CLAUSE_LOCATION (c
),
4787 "high bound %qE above array section size "
4788 "in %qs clause", lbpluslen
,
4789 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4790 return error_mark_node
;
4795 else if (length
== NULL_TREE
)
4797 if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_DEPEND
4798 && OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_REDUCTION
)
4799 maybe_zero_len
= true;
4800 if (first_non_one
== types
.length ())
4804 /* For [lb:] we will need to evaluate lb more than once. */
4805 if (length
== NULL_TREE
&& OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_DEPEND
)
4807 tree lb
= cp_save_expr (low_bound
);
4808 if (lb
!= low_bound
)
4810 TREE_PURPOSE (t
) = lb
;
4815 else if (TREE_CODE (type
) == POINTER_TYPE
)
4817 if (length
== NULL_TREE
)
4819 error_at (OMP_CLAUSE_LOCATION (c
),
4820 "for pointer type length expression must be specified");
4821 return error_mark_node
;
4823 if (length
!= NULL_TREE
4824 && TREE_CODE (length
) == INTEGER_CST
4825 && tree_int_cst_sgn (length
) == -1)
4827 error_at (OMP_CLAUSE_LOCATION (c
),
4828 "negative length in array section in %qs clause",
4829 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4830 return error_mark_node
;
4832 /* If there is a pointer type anywhere but in the very first
4833 array-section-subscript, the array section can't be contiguous. */
4834 if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_DEPEND
4835 && TREE_CODE (TREE_CHAIN (t
)) == TREE_LIST
)
4837 error_at (OMP_CLAUSE_LOCATION (c
),
4838 "array section is not contiguous in %qs clause",
4839 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4840 return error_mark_node
;
4845 error_at (OMP_CLAUSE_LOCATION (c
),
4846 "%qE does not have pointer or array type", ret
);
4847 return error_mark_node
;
4849 if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_DEPEND
)
4850 types
.safe_push (TREE_TYPE (ret
));
4851 /* We will need to evaluate lb more than once. */
4852 tree lb
= cp_save_expr (low_bound
);
4853 if (lb
!= low_bound
)
4855 TREE_PURPOSE (t
) = lb
;
4858 ret
= grok_array_decl (OMP_CLAUSE_LOCATION (c
), ret
, low_bound
, false);
4862 /* Handle array sections for clause C. */
4865 handle_omp_array_sections (tree c
, enum c_omp_region_type ort
)
4867 bool maybe_zero_len
= false;
4868 unsigned int first_non_one
= 0;
4869 auto_vec
<tree
, 10> types
;
4870 tree first
= handle_omp_array_sections_1 (c
, OMP_CLAUSE_DECL (c
), types
,
4871 maybe_zero_len
, first_non_one
,
4873 if (first
== error_mark_node
)
4875 if (first
== NULL_TREE
)
4877 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_DEPEND
)
4879 tree t
= OMP_CLAUSE_DECL (c
);
4880 tree tem
= NULL_TREE
;
4881 if (processing_template_decl
)
4883 /* Need to evaluate side effects in the length expressions
4885 while (TREE_CODE (t
) == TREE_LIST
)
4887 if (TREE_VALUE (t
) && TREE_SIDE_EFFECTS (TREE_VALUE (t
)))
4889 if (tem
== NULL_TREE
)
4890 tem
= TREE_VALUE (t
);
4892 tem
= build2 (COMPOUND_EXPR
, TREE_TYPE (tem
),
4893 TREE_VALUE (t
), tem
);
4898 first
= build2 (COMPOUND_EXPR
, TREE_TYPE (first
), tem
, first
);
4899 OMP_CLAUSE_DECL (c
) = first
;
4903 unsigned int num
= types
.length (), i
;
4904 tree t
, side_effects
= NULL_TREE
, size
= NULL_TREE
;
4905 tree condition
= NULL_TREE
;
4907 if (int_size_in_bytes (TREE_TYPE (first
)) <= 0)
4908 maybe_zero_len
= true;
4909 if (processing_template_decl
&& maybe_zero_len
)
4912 for (i
= num
, t
= OMP_CLAUSE_DECL (c
); i
> 0;
4915 tree low_bound
= TREE_PURPOSE (t
);
4916 tree length
= TREE_VALUE (t
);
4920 && TREE_CODE (low_bound
) == INTEGER_CST
4921 && TYPE_PRECISION (TREE_TYPE (low_bound
))
4922 > TYPE_PRECISION (sizetype
))
4923 low_bound
= fold_convert (sizetype
, low_bound
);
4925 && TREE_CODE (length
) == INTEGER_CST
4926 && TYPE_PRECISION (TREE_TYPE (length
))
4927 > TYPE_PRECISION (sizetype
))
4928 length
= fold_convert (sizetype
, length
);
4929 if (low_bound
== NULL_TREE
)
4930 low_bound
= integer_zero_node
;
4931 if (!maybe_zero_len
&& i
> first_non_one
)
4933 if (integer_nonzerop (low_bound
))
4934 goto do_warn_noncontiguous
;
4935 if (length
!= NULL_TREE
4936 && TREE_CODE (length
) == INTEGER_CST
4937 && TYPE_DOMAIN (types
[i
])
4938 && TYPE_MAX_VALUE (TYPE_DOMAIN (types
[i
]))
4939 && TREE_CODE (TYPE_MAX_VALUE (TYPE_DOMAIN (types
[i
])))
4943 size
= size_binop (PLUS_EXPR
,
4944 TYPE_MAX_VALUE (TYPE_DOMAIN (types
[i
])),
4946 if (!tree_int_cst_equal (length
, size
))
4948 do_warn_noncontiguous
:
4949 error_at (OMP_CLAUSE_LOCATION (c
),
4950 "array section is not contiguous in %qs "
4952 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
4956 if (!processing_template_decl
4957 && length
!= NULL_TREE
4958 && TREE_SIDE_EFFECTS (length
))
4960 if (side_effects
== NULL_TREE
)
4961 side_effects
= length
;
4963 side_effects
= build2 (COMPOUND_EXPR
,
4964 TREE_TYPE (side_effects
),
4965 length
, side_effects
);
4968 else if (processing_template_decl
)
4974 if (i
> first_non_one
4975 && ((length
&& integer_nonzerop (length
))
4976 || OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_REDUCTION
))
4979 l
= fold_convert (sizetype
, length
);
4982 l
= size_binop (PLUS_EXPR
,
4983 TYPE_MAX_VALUE (TYPE_DOMAIN (types
[i
])),
4985 l
= size_binop (MINUS_EXPR
, l
,
4986 fold_convert (sizetype
, low_bound
));
4988 if (i
> first_non_one
)
4990 l
= fold_build2 (NE_EXPR
, boolean_type_node
, l
,
4992 if (condition
== NULL_TREE
)
4995 condition
= fold_build2 (BIT_AND_EXPR
, boolean_type_node
,
4998 else if (size
== NULL_TREE
)
5000 size
= size_in_bytes (TREE_TYPE (types
[i
]));
5001 tree eltype
= TREE_TYPE (types
[num
- 1]);
5002 while (TREE_CODE (eltype
) == ARRAY_TYPE
)
5003 eltype
= TREE_TYPE (eltype
);
5004 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_REDUCTION
)
5005 size
= size_binop (EXACT_DIV_EXPR
, size
,
5006 size_in_bytes (eltype
));
5007 size
= size_binop (MULT_EXPR
, size
, l
);
5009 size
= fold_build3 (COND_EXPR
, sizetype
, condition
,
5010 size
, size_zero_node
);
5013 size
= size_binop (MULT_EXPR
, size
, l
);
5016 if (!processing_template_decl
)
5019 size
= build2 (COMPOUND_EXPR
, sizetype
, side_effects
, size
);
5020 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_REDUCTION
)
5022 size
= size_binop (MINUS_EXPR
, size
, size_one_node
);
5023 tree index_type
= build_index_type (size
);
5024 tree eltype
= TREE_TYPE (first
);
5025 while (TREE_CODE (eltype
) == ARRAY_TYPE
)
5026 eltype
= TREE_TYPE (eltype
);
5027 tree type
= build_array_type (eltype
, index_type
);
5028 tree ptype
= build_pointer_type (eltype
);
5029 if (TREE_CODE (TREE_TYPE (t
)) == REFERENCE_TYPE
5030 && POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (t
))))
5031 t
= convert_from_reference (t
);
5032 else if (TREE_CODE (TREE_TYPE (t
)) == ARRAY_TYPE
)
5033 t
= build_fold_addr_expr (t
);
5034 tree t2
= build_fold_addr_expr (first
);
5035 t2
= fold_convert_loc (OMP_CLAUSE_LOCATION (c
),
5036 ptrdiff_type_node
, t2
);
5037 t2
= fold_build2_loc (OMP_CLAUSE_LOCATION (c
), MINUS_EXPR
,
5038 ptrdiff_type_node
, t2
,
5039 fold_convert_loc (OMP_CLAUSE_LOCATION (c
),
5040 ptrdiff_type_node
, t
));
5041 if (tree_fits_shwi_p (t2
))
5042 t
= build2 (MEM_REF
, type
, t
,
5043 build_int_cst (ptype
, tree_to_shwi (t2
)));
5046 t2
= fold_convert_loc (OMP_CLAUSE_LOCATION (c
),
5048 t
= build2_loc (OMP_CLAUSE_LOCATION (c
), POINTER_PLUS_EXPR
,
5049 TREE_TYPE (t
), t
, t2
);
5050 t
= build2 (MEM_REF
, type
, t
, build_int_cst (ptype
, 0));
5052 OMP_CLAUSE_DECL (c
) = t
;
5055 OMP_CLAUSE_DECL (c
) = first
;
5056 OMP_CLAUSE_SIZE (c
) = size
;
5057 if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_MAP
5058 || (TREE_CODE (t
) == COMPONENT_REF
5059 && TREE_CODE (TREE_TYPE (t
)) == ARRAY_TYPE
))
5061 if (ort
== C_ORT_OMP
|| ort
== C_ORT_ACC
)
5062 switch (OMP_CLAUSE_MAP_KIND (c
))
5064 case GOMP_MAP_ALLOC
:
5067 case GOMP_MAP_TOFROM
:
5068 case GOMP_MAP_ALWAYS_TO
:
5069 case GOMP_MAP_ALWAYS_FROM
:
5070 case GOMP_MAP_ALWAYS_TOFROM
:
5071 case GOMP_MAP_RELEASE
:
5072 case GOMP_MAP_DELETE
:
5073 case GOMP_MAP_FORCE_TO
:
5074 case GOMP_MAP_FORCE_FROM
:
5075 case GOMP_MAP_FORCE_TOFROM
:
5076 case GOMP_MAP_FORCE_PRESENT
:
5077 OMP_CLAUSE_MAP_MAYBE_ZERO_LENGTH_ARRAY_SECTION (c
) = 1;
5082 tree c2
= build_omp_clause (OMP_CLAUSE_LOCATION (c
),
5084 if ((ort
& C_ORT_OMP_DECLARE_SIMD
) != C_ORT_OMP
&& ort
!= C_ORT_ACC
)
5085 OMP_CLAUSE_SET_MAP_KIND (c2
, GOMP_MAP_POINTER
);
5086 else if (TREE_CODE (t
) == COMPONENT_REF
)
5087 OMP_CLAUSE_SET_MAP_KIND (c2
, GOMP_MAP_ALWAYS_POINTER
);
5088 else if (REFERENCE_REF_P (t
)
5089 && TREE_CODE (TREE_OPERAND (t
, 0)) == COMPONENT_REF
)
5091 t
= TREE_OPERAND (t
, 0);
5092 OMP_CLAUSE_SET_MAP_KIND (c2
, GOMP_MAP_ALWAYS_POINTER
);
5095 OMP_CLAUSE_SET_MAP_KIND (c2
, GOMP_MAP_FIRSTPRIVATE_POINTER
);
5096 if (OMP_CLAUSE_MAP_KIND (c2
) != GOMP_MAP_FIRSTPRIVATE_POINTER
5097 && !cxx_mark_addressable (t
))
5099 OMP_CLAUSE_DECL (c2
) = t
;
5100 t
= build_fold_addr_expr (first
);
5101 t
= fold_convert_loc (OMP_CLAUSE_LOCATION (c
),
5102 ptrdiff_type_node
, t
);
5103 tree ptr
= OMP_CLAUSE_DECL (c2
);
5104 ptr
= convert_from_reference (ptr
);
5105 if (!POINTER_TYPE_P (TREE_TYPE (ptr
)))
5106 ptr
= build_fold_addr_expr (ptr
);
5107 t
= fold_build2_loc (OMP_CLAUSE_LOCATION (c
), MINUS_EXPR
,
5108 ptrdiff_type_node
, t
,
5109 fold_convert_loc (OMP_CLAUSE_LOCATION (c
),
5110 ptrdiff_type_node
, ptr
));
5111 OMP_CLAUSE_SIZE (c2
) = t
;
5112 OMP_CLAUSE_CHAIN (c2
) = OMP_CLAUSE_CHAIN (c
);
5113 OMP_CLAUSE_CHAIN (c
) = c2
;
5114 ptr
= OMP_CLAUSE_DECL (c2
);
5115 if (OMP_CLAUSE_MAP_KIND (c2
) != GOMP_MAP_FIRSTPRIVATE_POINTER
5116 && TREE_CODE (TREE_TYPE (ptr
)) == REFERENCE_TYPE
5117 && POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (ptr
))))
5119 tree c3
= build_omp_clause (OMP_CLAUSE_LOCATION (c
),
5121 OMP_CLAUSE_SET_MAP_KIND (c3
, OMP_CLAUSE_MAP_KIND (c2
));
5122 OMP_CLAUSE_DECL (c3
) = ptr
;
5123 if (OMP_CLAUSE_MAP_KIND (c2
) == GOMP_MAP_ALWAYS_POINTER
)
5124 OMP_CLAUSE_DECL (c2
) = build_simple_mem_ref (ptr
);
5126 OMP_CLAUSE_DECL (c2
) = convert_from_reference (ptr
);
5127 OMP_CLAUSE_SIZE (c3
) = size_zero_node
;
5128 OMP_CLAUSE_CHAIN (c3
) = OMP_CLAUSE_CHAIN (c2
);
5129 OMP_CLAUSE_CHAIN (c2
) = c3
;
5136 /* Return identifier to look up for omp declare reduction. */
5139 omp_reduction_id (enum tree_code reduction_code
, tree reduction_id
, tree type
)
5141 const char *p
= NULL
;
5142 const char *m
= NULL
;
5143 switch (reduction_code
)
5151 case TRUTH_ANDIF_EXPR
:
5152 case TRUTH_ORIF_EXPR
:
5153 reduction_id
= ovl_op_identifier (false, reduction_code
);
5167 if (TREE_CODE (reduction_id
) != IDENTIFIER_NODE
)
5168 return error_mark_node
;
5169 p
= IDENTIFIER_POINTER (reduction_id
);
5172 if (type
!= NULL_TREE
)
5173 m
= mangle_type_string (TYPE_MAIN_VARIANT (type
));
5175 const char prefix
[] = "omp declare reduction ";
5176 size_t lenp
= sizeof (prefix
);
5177 if (strncmp (p
, prefix
, lenp
- 1) == 0)
5179 size_t len
= strlen (p
);
5180 size_t lenm
= m
? strlen (m
) + 1 : 0;
5181 char *name
= XALLOCAVEC (char, lenp
+ len
+ lenm
);
5183 memcpy (name
, prefix
, lenp
- 1);
5184 memcpy (name
+ lenp
- 1, p
, len
+ 1);
5187 name
[lenp
+ len
- 1] = '~';
5188 memcpy (name
+ lenp
+ len
, m
, lenm
);
5190 return get_identifier (name
);
5193 /* Lookup OpenMP UDR ID for TYPE, return the corresponding artificial
5194 FUNCTION_DECL or NULL_TREE if not found. */
5197 omp_reduction_lookup (location_t loc
, tree id
, tree type
, tree
*baselinkp
,
5198 vec
<tree
> *ambiguousp
)
5201 tree baselink
= NULL_TREE
;
5202 if (identifier_p (id
))
5205 bool nonint_cst_expression_p
;
5206 const char *error_msg
;
5207 id
= omp_reduction_id (ERROR_MARK
, id
, type
);
5208 tree decl
= lookup_name (id
);
5209 if (decl
== NULL_TREE
)
5210 decl
= error_mark_node
;
5211 id
= finish_id_expression (id
, decl
, NULL_TREE
, &idk
, false, true,
5212 &nonint_cst_expression_p
, false, true, false,
5213 false, &error_msg
, loc
);
5214 if (idk
== CP_ID_KIND_UNQUALIFIED
5215 && identifier_p (id
))
5217 vec
<tree
, va_gc
> *args
= NULL
;
5218 vec_safe_push (args
, build_reference_type (type
));
5219 id
= perform_koenig_lookup (id
, args
, tf_none
);
5222 else if (TREE_CODE (id
) == SCOPE_REF
)
5223 id
= lookup_qualified_name (TREE_OPERAND (id
, 0),
5224 omp_reduction_id (ERROR_MARK
,
5225 TREE_OPERAND (id
, 1),
5230 if (fns
&& is_overloaded_fn (fns
))
5232 for (lkp_iterator
iter (get_fns (fns
)); iter
; ++iter
)
5234 tree fndecl
= *iter
;
5235 if (TREE_CODE (fndecl
) == FUNCTION_DECL
)
5237 tree argtype
= TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (fndecl
)));
5238 if (same_type_p (TREE_TYPE (argtype
), type
))
5246 if (id
&& BASELINK_P (fns
))
5255 if (!id
&& CLASS_TYPE_P (type
) && TYPE_BINFO (type
))
5257 vec
<tree
> ambiguous
= vNULL
;
5258 tree binfo
= TYPE_BINFO (type
), base_binfo
, ret
= NULL_TREE
;
5260 if (ambiguousp
== NULL
)
5261 ambiguousp
= &ambiguous
;
5262 for (ix
= 0; BINFO_BASE_ITERATE (binfo
, ix
, base_binfo
); ix
++)
5264 id
= omp_reduction_lookup (loc
, orig_id
, BINFO_TYPE (base_binfo
),
5265 baselinkp
? baselinkp
: &baselink
,
5267 if (id
== NULL_TREE
)
5269 if (!ambiguousp
->is_empty ())
5270 ambiguousp
->safe_push (id
);
5271 else if (ret
!= NULL_TREE
)
5273 ambiguousp
->safe_push (ret
);
5274 ambiguousp
->safe_push (id
);
5280 if (ambiguousp
!= &ambiguous
)
5282 if (!ambiguous
.is_empty ())
5284 const char *str
= _("candidates are:");
5287 error_at (loc
, "user defined reduction lookup is ambiguous");
5288 FOR_EACH_VEC_ELT (ambiguous
, idx
, udr
)
5290 inform (DECL_SOURCE_LOCATION (udr
), "%s %#qD", str
, udr
);
5292 str
= get_spaces (str
);
5294 ambiguous
.release ();
5295 ret
= error_mark_node
;
5296 baselink
= NULL_TREE
;
5301 perform_or_defer_access_check (BASELINK_BINFO (baselink
),
5302 id
, id
, tf_warning_or_error
);
5306 /* Helper function for cp_parser_omp_declare_reduction_exprs
5308 Remove CLEANUP_STMT for data (omp_priv variable).
5309 Also append INIT_EXPR for DECL_INITIAL of omp_priv after its
5313 cp_remove_omp_priv_cleanup_stmt (tree
*tp
, int *walk_subtrees
, void *data
)
5317 else if (TREE_CODE (*tp
) == CLEANUP_STMT
&& CLEANUP_DECL (*tp
) == (tree
) data
)
5318 *tp
= CLEANUP_BODY (*tp
);
5319 else if (TREE_CODE (*tp
) == DECL_EXPR
)
5321 tree decl
= DECL_EXPR_DECL (*tp
);
5322 if (!processing_template_decl
5323 && decl
== (tree
) data
5324 && DECL_INITIAL (decl
)
5325 && DECL_INITIAL (decl
) != error_mark_node
)
5327 tree list
= NULL_TREE
;
5328 append_to_statement_list_force (*tp
, &list
);
5329 tree init_expr
= build2 (INIT_EXPR
, void_type_node
,
5330 decl
, DECL_INITIAL (decl
));
5331 DECL_INITIAL (decl
) = NULL_TREE
;
5332 append_to_statement_list_force (init_expr
, &list
);
5339 /* Data passed from cp_check_omp_declare_reduction to
5340 cp_check_omp_declare_reduction_r. */
5342 struct cp_check_omp_declare_reduction_data
5349 /* Helper function for cp_check_omp_declare_reduction, called via
5353 cp_check_omp_declare_reduction_r (tree
*tp
, int *, void *data
)
5355 struct cp_check_omp_declare_reduction_data
*udr_data
5356 = (struct cp_check_omp_declare_reduction_data
*) data
;
5358 && !DECL_ARTIFICIAL (*tp
)
5359 && *tp
!= DECL_EXPR_DECL (udr_data
->stmts
[udr_data
->combiner_p
? 0 : 3])
5360 && *tp
!= DECL_EXPR_DECL (udr_data
->stmts
[udr_data
->combiner_p
? 1 : 4]))
5362 location_t loc
= udr_data
->loc
;
5363 if (udr_data
->combiner_p
)
5364 error_at (loc
, "%<#pragma omp declare reduction%> combiner refers to "
5365 "variable %qD which is not %<omp_out%> nor %<omp_in%>",
5368 error_at (loc
, "%<#pragma omp declare reduction%> initializer refers "
5369 "to variable %qD which is not %<omp_priv%> nor "
5377 /* Diagnose violation of OpenMP #pragma omp declare reduction restrictions. */
5380 cp_check_omp_declare_reduction (tree udr
)
5382 tree type
= TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (udr
)));
5383 gcc_assert (TREE_CODE (type
) == REFERENCE_TYPE
);
5384 type
= TREE_TYPE (type
);
5386 location_t loc
= DECL_SOURCE_LOCATION (udr
);
5388 if (type
== error_mark_node
)
5390 if (ARITHMETIC_TYPE_P (type
))
5392 static enum tree_code predef_codes
[]
5393 = { PLUS_EXPR
, MULT_EXPR
, MINUS_EXPR
, BIT_AND_EXPR
, BIT_XOR_EXPR
,
5394 BIT_IOR_EXPR
, TRUTH_ANDIF_EXPR
, TRUTH_ORIF_EXPR
};
5395 for (i
= 0; i
< 8; i
++)
5397 tree id
= omp_reduction_id (predef_codes
[i
], NULL_TREE
, NULL_TREE
);
5398 const char *n1
= IDENTIFIER_POINTER (DECL_NAME (udr
));
5399 const char *n2
= IDENTIFIER_POINTER (id
);
5400 if (strncmp (n1
, n2
, IDENTIFIER_LENGTH (id
)) == 0
5401 && (n1
[IDENTIFIER_LENGTH (id
)] == '~'
5402 || n1
[IDENTIFIER_LENGTH (id
)] == '\0'))
5407 && TREE_CODE (type
) != COMPLEX_EXPR
)
5409 const char prefix_minmax
[] = "omp declare reduction m";
5410 size_t prefix_size
= sizeof (prefix_minmax
) - 1;
5411 const char *n
= IDENTIFIER_POINTER (DECL_NAME (udr
));
5412 if (strncmp (IDENTIFIER_POINTER (DECL_NAME (udr
)),
5413 prefix_minmax
, prefix_size
) == 0
5414 && ((n
[prefix_size
] == 'i' && n
[prefix_size
+ 1] == 'n')
5415 || (n
[prefix_size
] == 'a' && n
[prefix_size
+ 1] == 'x'))
5416 && (n
[prefix_size
+ 2] == '~' || n
[prefix_size
+ 2] == '\0'))
5421 error_at (loc
, "predeclared arithmetic type %qT in "
5422 "%<#pragma omp declare reduction%>", type
);
5426 else if (TREE_CODE (type
) == FUNCTION_TYPE
5427 || TREE_CODE (type
) == METHOD_TYPE
5428 || TREE_CODE (type
) == ARRAY_TYPE
)
5430 error_at (loc
, "function or array type %qT in "
5431 "%<#pragma omp declare reduction%>", type
);
5434 else if (TREE_CODE (type
) == REFERENCE_TYPE
)
5436 error_at (loc
, "reference type %qT in %<#pragma omp declare reduction%>",
5440 else if (TYPE_QUALS_NO_ADDR_SPACE (type
))
5442 error_at (loc
, "const, volatile or __restrict qualified type %qT in "
5443 "%<#pragma omp declare reduction%>", type
);
5447 tree body
= DECL_SAVED_TREE (udr
);
5448 if (body
== NULL_TREE
|| TREE_CODE (body
) != STATEMENT_LIST
)
5451 tree_stmt_iterator tsi
;
5452 struct cp_check_omp_declare_reduction_data data
;
5453 memset (data
.stmts
, 0, sizeof data
.stmts
);
5454 for (i
= 0, tsi
= tsi_start (body
);
5455 i
< 7 && !tsi_end_p (tsi
);
5456 i
++, tsi_next (&tsi
))
5457 data
.stmts
[i
] = tsi_stmt (tsi
);
5459 gcc_assert (tsi_end_p (tsi
));
5462 gcc_assert (TREE_CODE (data
.stmts
[0]) == DECL_EXPR
5463 && TREE_CODE (data
.stmts
[1]) == DECL_EXPR
);
5464 if (TREE_NO_WARNING (DECL_EXPR_DECL (data
.stmts
[0])))
5466 data
.combiner_p
= true;
5467 if (cp_walk_tree (&data
.stmts
[2], cp_check_omp_declare_reduction_r
,
5469 TREE_NO_WARNING (DECL_EXPR_DECL (data
.stmts
[0])) = 1;
5473 gcc_assert (TREE_CODE (data
.stmts
[3]) == DECL_EXPR
5474 && TREE_CODE (data
.stmts
[4]) == DECL_EXPR
);
5475 data
.combiner_p
= false;
5476 if (cp_walk_tree (&data
.stmts
[5], cp_check_omp_declare_reduction_r
,
5478 || cp_walk_tree (&DECL_INITIAL (DECL_EXPR_DECL (data
.stmts
[3])),
5479 cp_check_omp_declare_reduction_r
, &data
, NULL
))
5480 TREE_NO_WARNING (DECL_EXPR_DECL (data
.stmts
[0])) = 1;
5482 gcc_assert (TREE_CODE (data
.stmts
[6]) == DECL_EXPR
);
5486 /* Helper function of finish_omp_clauses. Clone STMT as if we were making
5487 an inline call. But, remap
5488 the OMP_DECL1 VAR_DECL (omp_out resp. omp_orig) to PLACEHOLDER
5489 and OMP_DECL2 VAR_DECL (omp_in resp. omp_priv) to DECL. */
5492 clone_omp_udr (tree stmt
, tree omp_decl1
, tree omp_decl2
,
5493 tree decl
, tree placeholder
)
5496 hash_map
<tree
, tree
> decl_map
;
5498 decl_map
.put (omp_decl1
, placeholder
);
5499 decl_map
.put (omp_decl2
, decl
);
5500 memset (&id
, 0, sizeof (id
));
5501 id
.src_fn
= DECL_CONTEXT (omp_decl1
);
5502 id
.dst_fn
= current_function_decl
;
5503 id
.src_cfun
= DECL_STRUCT_FUNCTION (id
.src_fn
);
5504 id
.decl_map
= &decl_map
;
5506 id
.copy_decl
= copy_decl_no_change
;
5507 id
.transform_call_graph_edges
= CB_CGE_DUPLICATE
;
5508 id
.transform_new_cfg
= true;
5509 id
.transform_return_to_modify
= false;
5510 id
.transform_lang_insert_block
= NULL
;
5512 walk_tree (&stmt
, copy_tree_body_r
, &id
, NULL
);
5516 /* Helper function of finish_omp_clauses, called via cp_walk_tree.
5517 Find OMP_CLAUSE_PLACEHOLDER (passed in DATA) in *TP. */
5520 find_omp_placeholder_r (tree
*tp
, int *, void *data
)
5522 if (*tp
== (tree
) data
)
5527 /* Helper function of finish_omp_clauses. Handle OMP_CLAUSE_REDUCTION C.
5528 Return true if there is some error and the clause should be removed. */
5531 finish_omp_reduction_clause (tree c
, bool *need_default_ctor
, bool *need_dtor
)
5533 tree t
= OMP_CLAUSE_DECL (c
);
5534 bool predefined
= false;
5535 if (TREE_CODE (t
) == TREE_LIST
)
5537 gcc_assert (processing_template_decl
);
5540 tree type
= TREE_TYPE (t
);
5541 if (TREE_CODE (t
) == MEM_REF
)
5542 type
= TREE_TYPE (type
);
5543 if (TREE_CODE (type
) == REFERENCE_TYPE
)
5544 type
= TREE_TYPE (type
);
5545 if (TREE_CODE (type
) == ARRAY_TYPE
)
5548 gcc_assert (TREE_CODE (t
) != MEM_REF
);
5549 while (TREE_CODE (type
) == ARRAY_TYPE
)
5550 type
= TREE_TYPE (type
);
5551 if (!processing_template_decl
)
5553 t
= require_complete_type (t
);
5554 if (t
== error_mark_node
)
5556 tree size
= size_binop (EXACT_DIV_EXPR
, TYPE_SIZE_UNIT (oatype
),
5557 TYPE_SIZE_UNIT (type
));
5558 if (integer_zerop (size
))
5560 error ("%qE in %<reduction%> clause is a zero size array",
5561 omp_clause_printable_decl (t
));
5564 size
= size_binop (MINUS_EXPR
, size
, size_one_node
);
5565 tree index_type
= build_index_type (size
);
5566 tree atype
= build_array_type (type
, index_type
);
5567 tree ptype
= build_pointer_type (type
);
5568 if (TREE_CODE (TREE_TYPE (t
)) == ARRAY_TYPE
)
5569 t
= build_fold_addr_expr (t
);
5570 t
= build2 (MEM_REF
, atype
, t
, build_int_cst (ptype
, 0));
5571 OMP_CLAUSE_DECL (c
) = t
;
5574 if (type
== error_mark_node
)
5576 else if (ARITHMETIC_TYPE_P (type
))
5577 switch (OMP_CLAUSE_REDUCTION_CODE (c
))
5586 if (TREE_CODE (type
) == COMPLEX_TYPE
)
5593 if (FLOAT_TYPE_P (type
) || TREE_CODE (type
) == COMPLEX_TYPE
)
5597 case TRUTH_ANDIF_EXPR
:
5598 case TRUTH_ORIF_EXPR
:
5599 if (FLOAT_TYPE_P (type
))
5606 else if (TYPE_READONLY (type
))
5608 error ("%qE has const type for %<reduction%>",
5609 omp_clause_printable_decl (t
));
5612 else if (!processing_template_decl
)
5614 t
= require_complete_type (t
);
5615 if (t
== error_mark_node
)
5617 OMP_CLAUSE_DECL (c
) = t
;
5622 OMP_CLAUSE_REDUCTION_PLACEHOLDER (c
) = NULL_TREE
;
5625 else if (processing_template_decl
)
5627 if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c
) == error_mark_node
)
5632 tree id
= OMP_CLAUSE_REDUCTION_PLACEHOLDER (c
);
5634 type
= TYPE_MAIN_VARIANT (type
);
5635 OMP_CLAUSE_REDUCTION_PLACEHOLDER (c
) = NULL_TREE
;
5636 if (id
== NULL_TREE
)
5637 id
= omp_reduction_id (OMP_CLAUSE_REDUCTION_CODE (c
),
5638 NULL_TREE
, NULL_TREE
);
5639 id
= omp_reduction_lookup (OMP_CLAUSE_LOCATION (c
), id
, type
, NULL
, NULL
);
5642 if (id
== error_mark_node
)
5645 tree body
= DECL_SAVED_TREE (id
);
5648 if (TREE_CODE (body
) == STATEMENT_LIST
)
5650 tree_stmt_iterator tsi
;
5651 tree placeholder
= NULL_TREE
, decl_placeholder
= NULL_TREE
;
5654 tree atype
= TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (id
)));
5655 atype
= TREE_TYPE (atype
);
5656 bool need_static_cast
= !same_type_p (type
, atype
);
5657 memset (stmts
, 0, sizeof stmts
);
5658 for (i
= 0, tsi
= tsi_start (body
);
5659 i
< 7 && !tsi_end_p (tsi
);
5660 i
++, tsi_next (&tsi
))
5661 stmts
[i
] = tsi_stmt (tsi
);
5662 gcc_assert (tsi_end_p (tsi
));
5666 gcc_assert (TREE_CODE (stmts
[0]) == DECL_EXPR
5667 && TREE_CODE (stmts
[1]) == DECL_EXPR
);
5668 placeholder
= build_lang_decl (VAR_DECL
, NULL_TREE
, type
);
5669 DECL_ARTIFICIAL (placeholder
) = 1;
5670 DECL_IGNORED_P (placeholder
) = 1;
5671 OMP_CLAUSE_REDUCTION_PLACEHOLDER (c
) = placeholder
;
5672 if (TREE_CODE (t
) == MEM_REF
)
5674 decl_placeholder
= build_lang_decl (VAR_DECL
, NULL_TREE
,
5676 DECL_ARTIFICIAL (decl_placeholder
) = 1;
5677 DECL_IGNORED_P (decl_placeholder
) = 1;
5678 OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (c
) = decl_placeholder
;
5680 if (TREE_ADDRESSABLE (DECL_EXPR_DECL (stmts
[0])))
5681 cxx_mark_addressable (placeholder
);
5682 if (TREE_ADDRESSABLE (DECL_EXPR_DECL (stmts
[1]))
5683 && TREE_CODE (TREE_TYPE (OMP_CLAUSE_DECL (c
)))
5685 cxx_mark_addressable (decl_placeholder
? decl_placeholder
5686 : OMP_CLAUSE_DECL (c
));
5687 tree omp_out
= placeholder
;
5688 tree omp_in
= decl_placeholder
? decl_placeholder
5689 : convert_from_reference (OMP_CLAUSE_DECL (c
));
5690 if (need_static_cast
)
5692 tree rtype
= build_reference_type (atype
);
5693 omp_out
= build_static_cast (rtype
, omp_out
,
5694 tf_warning_or_error
);
5695 omp_in
= build_static_cast (rtype
, omp_in
,
5696 tf_warning_or_error
);
5697 if (omp_out
== error_mark_node
|| omp_in
== error_mark_node
)
5699 omp_out
= convert_from_reference (omp_out
);
5700 omp_in
= convert_from_reference (omp_in
);
5702 OMP_CLAUSE_REDUCTION_MERGE (c
)
5703 = clone_omp_udr (stmts
[2], DECL_EXPR_DECL (stmts
[0]),
5704 DECL_EXPR_DECL (stmts
[1]), omp_in
, omp_out
);
5708 gcc_assert (TREE_CODE (stmts
[3]) == DECL_EXPR
5709 && TREE_CODE (stmts
[4]) == DECL_EXPR
);
5710 if (TREE_ADDRESSABLE (DECL_EXPR_DECL (stmts
[3])))
5711 cxx_mark_addressable (decl_placeholder
? decl_placeholder
5712 : OMP_CLAUSE_DECL (c
));
5713 if (TREE_ADDRESSABLE (DECL_EXPR_DECL (stmts
[4])))
5714 cxx_mark_addressable (placeholder
);
5715 tree omp_priv
= decl_placeholder
? decl_placeholder
5716 : convert_from_reference (OMP_CLAUSE_DECL (c
));
5717 tree omp_orig
= placeholder
;
5718 if (need_static_cast
)
5722 error_at (OMP_CLAUSE_LOCATION (c
),
5723 "user defined reduction with constructor "
5724 "initializer for base class %qT", atype
);
5727 tree rtype
= build_reference_type (atype
);
5728 omp_priv
= build_static_cast (rtype
, omp_priv
,
5729 tf_warning_or_error
);
5730 omp_orig
= build_static_cast (rtype
, omp_orig
,
5731 tf_warning_or_error
);
5732 if (omp_priv
== error_mark_node
5733 || omp_orig
== error_mark_node
)
5735 omp_priv
= convert_from_reference (omp_priv
);
5736 omp_orig
= convert_from_reference (omp_orig
);
5739 *need_default_ctor
= true;
5740 OMP_CLAUSE_REDUCTION_INIT (c
)
5741 = clone_omp_udr (stmts
[5], DECL_EXPR_DECL (stmts
[4]),
5742 DECL_EXPR_DECL (stmts
[3]),
5743 omp_priv
, omp_orig
);
5744 if (cp_walk_tree (&OMP_CLAUSE_REDUCTION_INIT (c
),
5745 find_omp_placeholder_r
, placeholder
, NULL
))
5746 OMP_CLAUSE_REDUCTION_OMP_ORIG_REF (c
) = 1;
5750 if (CLASS_TYPE_P (type
) && !pod_type_p (type
))
5751 *need_default_ctor
= true;
5755 tree v
= decl_placeholder
? decl_placeholder
5756 : convert_from_reference (t
);
5757 if (AGGREGATE_TYPE_P (TREE_TYPE (v
)))
5758 init
= build_constructor (TREE_TYPE (v
), NULL
);
5760 init
= fold_convert (TREE_TYPE (v
), integer_zero_node
);
5761 OMP_CLAUSE_REDUCTION_INIT (c
)
5762 = build2 (INIT_EXPR
, TREE_TYPE (v
), v
, init
);
5767 if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c
))
5771 error ("user defined reduction not found for %qE",
5772 omp_clause_printable_decl (t
));
5775 if (TREE_CODE (OMP_CLAUSE_DECL (c
)) == MEM_REF
)
5776 gcc_assert (TYPE_SIZE_UNIT (type
)
5777 && TREE_CODE (TYPE_SIZE_UNIT (type
)) == INTEGER_CST
);
5781 /* Called from finish_struct_1. linear(this) or linear(this:step)
5782 clauses might not be finalized yet because the class has been incomplete
5783 when parsing #pragma omp declare simd methods. Fix those up now. */
5786 finish_omp_declare_simd_methods (tree t
)
5788 if (processing_template_decl
)
5791 for (tree x
= TYPE_FIELDS (t
); x
; x
= DECL_CHAIN (x
))
5793 if (TREE_CODE (TREE_TYPE (x
)) != METHOD_TYPE
)
5795 tree ods
= lookup_attribute ("omp declare simd", DECL_ATTRIBUTES (x
));
5796 if (!ods
|| !TREE_VALUE (ods
))
5798 for (tree c
= TREE_VALUE (TREE_VALUE (ods
)); c
; c
= OMP_CLAUSE_CHAIN (c
))
5799 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_LINEAR
5800 && integer_zerop (OMP_CLAUSE_DECL (c
))
5801 && OMP_CLAUSE_LINEAR_STEP (c
)
5802 && TREE_CODE (TREE_TYPE (OMP_CLAUSE_LINEAR_STEP (c
)))
5805 tree s
= OMP_CLAUSE_LINEAR_STEP (c
);
5806 s
= fold_convert_loc (OMP_CLAUSE_LOCATION (c
), sizetype
, s
);
5807 s
= fold_build2_loc (OMP_CLAUSE_LOCATION (c
), MULT_EXPR
,
5808 sizetype
, s
, TYPE_SIZE_UNIT (t
));
5809 OMP_CLAUSE_LINEAR_STEP (c
) = s
;
5814 /* Adjust sink depend clause to take into account pointer offsets.
5816 Return TRUE if there was a problem processing the offset, and the
5817 whole clause should be removed. */
5820 cp_finish_omp_clause_depend_sink (tree sink_clause
)
5822 tree t
= OMP_CLAUSE_DECL (sink_clause
);
5823 gcc_assert (TREE_CODE (t
) == TREE_LIST
);
5825 /* Make sure we don't adjust things twice for templates. */
5826 if (processing_template_decl
)
5829 for (; t
; t
= TREE_CHAIN (t
))
5831 tree decl
= TREE_VALUE (t
);
5832 if (TREE_CODE (TREE_TYPE (decl
)) == POINTER_TYPE
)
5834 tree offset
= TREE_PURPOSE (t
);
5835 bool neg
= wi::neg_p (wi::to_wide (offset
));
5836 offset
= fold_unary (ABS_EXPR
, TREE_TYPE (offset
), offset
);
5837 decl
= mark_rvalue_use (decl
);
5838 decl
= convert_from_reference (decl
);
5839 tree t2
= pointer_int_sum (OMP_CLAUSE_LOCATION (sink_clause
),
5840 neg
? MINUS_EXPR
: PLUS_EXPR
,
5842 t2
= fold_build2_loc (OMP_CLAUSE_LOCATION (sink_clause
),
5843 MINUS_EXPR
, sizetype
,
5844 fold_convert (sizetype
, t2
),
5845 fold_convert (sizetype
, decl
));
5846 if (t2
== error_mark_node
)
5848 TREE_PURPOSE (t
) = t2
;
5854 /* For all elements of CLAUSES, validate them vs OpenMP constraints.
5855 Remove any elements from the list that are invalid. */
5858 finish_omp_clauses (tree clauses
, enum c_omp_region_type ort
)
5860 bitmap_head generic_head
, firstprivate_head
, lastprivate_head
;
5861 bitmap_head aligned_head
, map_head
, map_field_head
, oacc_reduction_head
;
5863 tree safelen
= NULL_TREE
;
5864 bool branch_seen
= false;
5865 bool copyprivate_seen
= false;
5866 bool ordered_seen
= false;
5867 bool oacc_async
= false;
5869 bitmap_obstack_initialize (NULL
);
5870 bitmap_initialize (&generic_head
, &bitmap_default_obstack
);
5871 bitmap_initialize (&firstprivate_head
, &bitmap_default_obstack
);
5872 bitmap_initialize (&lastprivate_head
, &bitmap_default_obstack
);
5873 bitmap_initialize (&aligned_head
, &bitmap_default_obstack
);
5874 bitmap_initialize (&map_head
, &bitmap_default_obstack
);
5875 bitmap_initialize (&map_field_head
, &bitmap_default_obstack
);
5876 bitmap_initialize (&oacc_reduction_head
, &bitmap_default_obstack
);
5878 if (ort
& C_ORT_ACC
)
5879 for (c
= clauses
; c
; c
= OMP_CLAUSE_CHAIN (c
))
5880 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_ASYNC
)
5886 for (pc
= &clauses
, c
= clauses
; c
; c
= *pc
)
5888 bool remove
= false;
5889 bool field_ok
= false;
5891 switch (OMP_CLAUSE_CODE (c
))
5893 case OMP_CLAUSE_SHARED
:
5894 field_ok
= ((ort
& C_ORT_OMP_DECLARE_SIMD
) == C_ORT_OMP
);
5895 goto check_dup_generic
;
5896 case OMP_CLAUSE_PRIVATE
:
5897 field_ok
= ((ort
& C_ORT_OMP_DECLARE_SIMD
) == C_ORT_OMP
);
5898 goto check_dup_generic
;
5899 case OMP_CLAUSE_REDUCTION
:
5900 field_ok
= ((ort
& C_ORT_OMP_DECLARE_SIMD
) == C_ORT_OMP
);
5901 t
= OMP_CLAUSE_DECL (c
);
5902 if (TREE_CODE (t
) == TREE_LIST
)
5904 if (handle_omp_array_sections (c
, ort
))
5909 if (TREE_CODE (t
) == TREE_LIST
)
5911 while (TREE_CODE (t
) == TREE_LIST
)
5916 gcc_assert (TREE_CODE (t
) == MEM_REF
);
5917 t
= TREE_OPERAND (t
, 0);
5918 if (TREE_CODE (t
) == POINTER_PLUS_EXPR
)
5919 t
= TREE_OPERAND (t
, 0);
5920 if (TREE_CODE (t
) == ADDR_EXPR
5921 || INDIRECT_REF_P (t
))
5922 t
= TREE_OPERAND (t
, 0);
5924 tree n
= omp_clause_decl_field (t
);
5927 goto check_dup_generic_t
;
5930 cxx_mark_addressable (t
);
5931 goto check_dup_generic
;
5932 case OMP_CLAUSE_COPYPRIVATE
:
5933 copyprivate_seen
= true;
5934 field_ok
= ((ort
& C_ORT_OMP_DECLARE_SIMD
) == C_ORT_OMP
);
5935 goto check_dup_generic
;
5936 case OMP_CLAUSE_COPYIN
:
5937 goto check_dup_generic
;
5938 case OMP_CLAUSE_LINEAR
:
5939 field_ok
= ((ort
& C_ORT_OMP_DECLARE_SIMD
) == C_ORT_OMP
);
5940 t
= OMP_CLAUSE_DECL (c
);
5941 if (ort
!= C_ORT_OMP_DECLARE_SIMD
5942 && OMP_CLAUSE_LINEAR_KIND (c
) != OMP_CLAUSE_LINEAR_DEFAULT
)
5944 error_at (OMP_CLAUSE_LOCATION (c
),
5945 "modifier should not be specified in %<linear%> "
5946 "clause on %<simd%> or %<for%> constructs");
5947 OMP_CLAUSE_LINEAR_KIND (c
) = OMP_CLAUSE_LINEAR_DEFAULT
;
5949 if ((VAR_P (t
) || TREE_CODE (t
) == PARM_DECL
)
5950 && !type_dependent_expression_p (t
))
5952 tree type
= TREE_TYPE (t
);
5953 if ((OMP_CLAUSE_LINEAR_KIND (c
) == OMP_CLAUSE_LINEAR_REF
5954 || OMP_CLAUSE_LINEAR_KIND (c
) == OMP_CLAUSE_LINEAR_UVAL
)
5955 && TREE_CODE (type
) != REFERENCE_TYPE
)
5957 error ("linear clause with %qs modifier applied to "
5958 "non-reference variable with %qT type",
5959 OMP_CLAUSE_LINEAR_KIND (c
) == OMP_CLAUSE_LINEAR_REF
5960 ? "ref" : "uval", TREE_TYPE (t
));
5964 if (TREE_CODE (type
) == REFERENCE_TYPE
)
5965 type
= TREE_TYPE (type
);
5966 if (OMP_CLAUSE_LINEAR_KIND (c
) != OMP_CLAUSE_LINEAR_REF
)
5968 if (!INTEGRAL_TYPE_P (type
)
5969 && TREE_CODE (type
) != POINTER_TYPE
)
5971 error ("linear clause applied to non-integral non-pointer"
5972 " variable with %qT type", TREE_TYPE (t
));
5978 t
= OMP_CLAUSE_LINEAR_STEP (c
);
5980 t
= integer_one_node
;
5981 if (t
== error_mark_node
)
5986 else if (!type_dependent_expression_p (t
)
5987 && !INTEGRAL_TYPE_P (TREE_TYPE (t
))
5988 && (ort
!= C_ORT_OMP_DECLARE_SIMD
5989 || TREE_CODE (t
) != PARM_DECL
5990 || TREE_CODE (TREE_TYPE (t
)) != REFERENCE_TYPE
5991 || !INTEGRAL_TYPE_P (TREE_TYPE (TREE_TYPE (t
)))))
5993 error ("linear step expression must be integral");
5999 t
= mark_rvalue_use (t
);
6000 if (ort
== C_ORT_OMP_DECLARE_SIMD
&& TREE_CODE (t
) == PARM_DECL
)
6002 OMP_CLAUSE_LINEAR_VARIABLE_STRIDE (c
) = 1;
6003 goto check_dup_generic
;
6005 if (!processing_template_decl
6006 && (VAR_P (OMP_CLAUSE_DECL (c
))
6007 || TREE_CODE (OMP_CLAUSE_DECL (c
)) == PARM_DECL
))
6009 if (ort
== C_ORT_OMP_DECLARE_SIMD
)
6011 t
= maybe_constant_value (t
);
6012 if (TREE_CODE (t
) != INTEGER_CST
)
6014 error_at (OMP_CLAUSE_LOCATION (c
),
6015 "%<linear%> clause step %qE is neither "
6016 "constant nor a parameter", t
);
6021 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6022 tree type
= TREE_TYPE (OMP_CLAUSE_DECL (c
));
6023 if (TREE_CODE (type
) == REFERENCE_TYPE
)
6024 type
= TREE_TYPE (type
);
6025 if (OMP_CLAUSE_LINEAR_KIND (c
) == OMP_CLAUSE_LINEAR_REF
)
6027 type
= build_pointer_type (type
);
6028 tree d
= fold_convert (type
, OMP_CLAUSE_DECL (c
));
6029 t
= pointer_int_sum (OMP_CLAUSE_LOCATION (c
), PLUS_EXPR
,
6031 t
= fold_build2_loc (OMP_CLAUSE_LOCATION (c
),
6032 MINUS_EXPR
, sizetype
,
6033 fold_convert (sizetype
, t
),
6034 fold_convert (sizetype
, d
));
6035 if (t
== error_mark_node
)
6041 else if (TREE_CODE (type
) == POINTER_TYPE
6042 /* Can't multiply the step yet if *this
6043 is still incomplete type. */
6044 && (ort
!= C_ORT_OMP_DECLARE_SIMD
6045 || TREE_CODE (OMP_CLAUSE_DECL (c
)) != PARM_DECL
6046 || !DECL_ARTIFICIAL (OMP_CLAUSE_DECL (c
))
6047 || DECL_NAME (OMP_CLAUSE_DECL (c
))
6049 || !TYPE_BEING_DEFINED (TREE_TYPE (type
))))
6051 tree d
= convert_from_reference (OMP_CLAUSE_DECL (c
));
6052 t
= pointer_int_sum (OMP_CLAUSE_LOCATION (c
), PLUS_EXPR
,
6054 t
= fold_build2_loc (OMP_CLAUSE_LOCATION (c
),
6055 MINUS_EXPR
, sizetype
,
6056 fold_convert (sizetype
, t
),
6057 fold_convert (sizetype
, d
));
6058 if (t
== error_mark_node
)
6065 t
= fold_convert (type
, t
);
6067 OMP_CLAUSE_LINEAR_STEP (c
) = t
;
6069 goto check_dup_generic
;
6071 t
= omp_clause_decl_field (OMP_CLAUSE_DECL (c
));
6074 if (!remove
&& OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_SHARED
)
6075 omp_note_field_privatization (t
, OMP_CLAUSE_DECL (c
));
6078 t
= OMP_CLAUSE_DECL (c
);
6079 check_dup_generic_t
:
6080 if (t
== current_class_ptr
6081 && (ort
!= C_ORT_OMP_DECLARE_SIMD
6082 || (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_LINEAR
6083 && OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_UNIFORM
)))
6085 error ("%<this%> allowed in OpenMP only in %<declare simd%>"
6090 if (!VAR_P (t
) && TREE_CODE (t
) != PARM_DECL
6091 && (!field_ok
|| TREE_CODE (t
) != FIELD_DECL
))
6093 if (processing_template_decl
&& TREE_CODE (t
) != OVERLOAD
)
6096 error ("%qD is not a variable in clause %qs", t
,
6097 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6099 error ("%qE is not a variable in clause %qs", t
,
6100 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6103 else if (ort
== C_ORT_ACC
6104 && OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_REDUCTION
)
6106 if (bitmap_bit_p (&oacc_reduction_head
, DECL_UID (t
)))
6108 error ("%qD appears more than once in reduction clauses", t
);
6112 bitmap_set_bit (&oacc_reduction_head
, DECL_UID (t
));
6114 else if (bitmap_bit_p (&generic_head
, DECL_UID (t
))
6115 || bitmap_bit_p (&firstprivate_head
, DECL_UID (t
))
6116 || bitmap_bit_p (&lastprivate_head
, DECL_UID (t
)))
6118 error ("%qD appears more than once in data clauses", t
);
6121 else if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_PRIVATE
6122 && bitmap_bit_p (&map_head
, DECL_UID (t
)))
6124 if (ort
== C_ORT_ACC
)
6125 error ("%qD appears more than once in data clauses", t
);
6127 error ("%qD appears both in data and map clauses", t
);
6131 bitmap_set_bit (&generic_head
, DECL_UID (t
));
6136 && TREE_CODE (t
) == FIELD_DECL
6137 && t
== OMP_CLAUSE_DECL (c
)
6138 && ort
!= C_ORT_ACC
)
6141 = omp_privatize_field (t
, (OMP_CLAUSE_CODE (c
)
6142 == OMP_CLAUSE_SHARED
));
6143 if (OMP_CLAUSE_DECL (c
) == error_mark_node
)
6148 case OMP_CLAUSE_FIRSTPRIVATE
:
6149 t
= omp_clause_decl_field (OMP_CLAUSE_DECL (c
));
6151 omp_note_field_privatization (t
, OMP_CLAUSE_DECL (c
));
6153 t
= OMP_CLAUSE_DECL (c
);
6154 if (ort
!= C_ORT_ACC
&& t
== current_class_ptr
)
6156 error ("%<this%> allowed in OpenMP only in %<declare simd%>"
6161 if (!VAR_P (t
) && TREE_CODE (t
) != PARM_DECL
6162 && ((ort
& C_ORT_OMP_DECLARE_SIMD
) != C_ORT_OMP
6163 || TREE_CODE (t
) != FIELD_DECL
))
6165 if (processing_template_decl
&& TREE_CODE (t
) != OVERLOAD
)
6168 error ("%qD is not a variable in clause %<firstprivate%>", t
);
6170 error ("%qE is not a variable in clause %<firstprivate%>", t
);
6173 else if (bitmap_bit_p (&generic_head
, DECL_UID (t
))
6174 || bitmap_bit_p (&firstprivate_head
, DECL_UID (t
)))
6176 error ("%qD appears more than once in data clauses", t
);
6179 else if (bitmap_bit_p (&map_head
, DECL_UID (t
)))
6181 if (ort
== C_ORT_ACC
)
6182 error ("%qD appears more than once in data clauses", t
);
6184 error ("%qD appears both in data and map clauses", t
);
6188 bitmap_set_bit (&firstprivate_head
, DECL_UID (t
));
6189 goto handle_field_decl
;
6191 case OMP_CLAUSE_LASTPRIVATE
:
6192 t
= omp_clause_decl_field (OMP_CLAUSE_DECL (c
));
6194 omp_note_field_privatization (t
, OMP_CLAUSE_DECL (c
));
6196 t
= OMP_CLAUSE_DECL (c
);
6197 if (t
== current_class_ptr
)
6199 error ("%<this%> allowed in OpenMP only in %<declare simd%>"
6204 if (!VAR_P (t
) && TREE_CODE (t
) != PARM_DECL
6205 && ((ort
& C_ORT_OMP_DECLARE_SIMD
) != C_ORT_OMP
6206 || TREE_CODE (t
) != FIELD_DECL
))
6208 if (processing_template_decl
&& TREE_CODE (t
) != OVERLOAD
)
6211 error ("%qD is not a variable in clause %<lastprivate%>", t
);
6213 error ("%qE is not a variable in clause %<lastprivate%>", t
);
6216 else if (bitmap_bit_p (&generic_head
, DECL_UID (t
))
6217 || bitmap_bit_p (&lastprivate_head
, DECL_UID (t
)))
6219 error ("%qD appears more than once in data clauses", t
);
6223 bitmap_set_bit (&lastprivate_head
, DECL_UID (t
));
6224 goto handle_field_decl
;
6227 t
= OMP_CLAUSE_IF_EXPR (c
);
6228 t
= maybe_convert_cond (t
);
6229 if (t
== error_mark_node
)
6231 else if (!processing_template_decl
)
6232 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6233 OMP_CLAUSE_IF_EXPR (c
) = t
;
6236 case OMP_CLAUSE_FINAL
:
6237 t
= OMP_CLAUSE_FINAL_EXPR (c
);
6238 t
= maybe_convert_cond (t
);
6239 if (t
== error_mark_node
)
6241 else if (!processing_template_decl
)
6242 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6243 OMP_CLAUSE_FINAL_EXPR (c
) = t
;
6246 case OMP_CLAUSE_GANG
:
6247 /* Operand 1 is the gang static: argument. */
6248 t
= OMP_CLAUSE_OPERAND (c
, 1);
6251 if (t
== error_mark_node
)
6253 else if (!type_dependent_expression_p (t
)
6254 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6256 error ("%<gang%> static expression must be integral");
6261 t
= mark_rvalue_use (t
);
6262 if (!processing_template_decl
)
6264 t
= maybe_constant_value (t
);
6265 if (TREE_CODE (t
) == INTEGER_CST
6266 && tree_int_cst_sgn (t
) != 1
6267 && t
!= integer_minus_one_node
)
6269 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
6270 "%<gang%> static value must be "
6272 t
= integer_one_node
;
6274 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6277 OMP_CLAUSE_OPERAND (c
, 1) = t
;
6279 /* Check operand 0, the num argument. */
6282 case OMP_CLAUSE_WORKER
:
6283 case OMP_CLAUSE_VECTOR
:
6284 if (OMP_CLAUSE_OPERAND (c
, 0) == NULL_TREE
)
6288 case OMP_CLAUSE_NUM_TASKS
:
6289 case OMP_CLAUSE_NUM_TEAMS
:
6290 case OMP_CLAUSE_NUM_THREADS
:
6291 case OMP_CLAUSE_NUM_GANGS
:
6292 case OMP_CLAUSE_NUM_WORKERS
:
6293 case OMP_CLAUSE_VECTOR_LENGTH
:
6294 t
= OMP_CLAUSE_OPERAND (c
, 0);
6295 if (t
== error_mark_node
)
6297 else if (!type_dependent_expression_p (t
)
6298 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6300 switch (OMP_CLAUSE_CODE (c
))
6302 case OMP_CLAUSE_GANG
:
6303 error_at (OMP_CLAUSE_LOCATION (c
),
6304 "%<gang%> num expression must be integral"); break;
6305 case OMP_CLAUSE_VECTOR
:
6306 error_at (OMP_CLAUSE_LOCATION (c
),
6307 "%<vector%> length expression must be integral");
6309 case OMP_CLAUSE_WORKER
:
6310 error_at (OMP_CLAUSE_LOCATION (c
),
6311 "%<worker%> num expression must be integral");
6314 error_at (OMP_CLAUSE_LOCATION (c
),
6315 "%qs expression must be integral",
6316 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6322 t
= mark_rvalue_use (t
);
6323 if (!processing_template_decl
)
6325 t
= maybe_constant_value (t
);
6326 if (TREE_CODE (t
) == INTEGER_CST
6327 && tree_int_cst_sgn (t
) != 1)
6329 switch (OMP_CLAUSE_CODE (c
))
6331 case OMP_CLAUSE_GANG
:
6332 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
6333 "%<gang%> num value must be positive");
6335 case OMP_CLAUSE_VECTOR
:
6336 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
6337 "%<vector%> length value must be "
6340 case OMP_CLAUSE_WORKER
:
6341 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
6342 "%<worker%> num value must be "
6346 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
6347 "%qs value must be positive",
6348 omp_clause_code_name
6349 [OMP_CLAUSE_CODE (c
)]);
6351 t
= integer_one_node
;
6353 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6355 OMP_CLAUSE_OPERAND (c
, 0) = t
;
6359 case OMP_CLAUSE_SCHEDULE
:
6360 if (OMP_CLAUSE_SCHEDULE_KIND (c
) & OMP_CLAUSE_SCHEDULE_NONMONOTONIC
)
6362 const char *p
= NULL
;
6363 switch (OMP_CLAUSE_SCHEDULE_KIND (c
) & OMP_CLAUSE_SCHEDULE_MASK
)
6365 case OMP_CLAUSE_SCHEDULE_STATIC
: p
= "static"; break;
6366 case OMP_CLAUSE_SCHEDULE_DYNAMIC
: break;
6367 case OMP_CLAUSE_SCHEDULE_GUIDED
: break;
6368 case OMP_CLAUSE_SCHEDULE_AUTO
: p
= "auto"; break;
6369 case OMP_CLAUSE_SCHEDULE_RUNTIME
: p
= "runtime"; break;
6370 default: gcc_unreachable ();
6374 error_at (OMP_CLAUSE_LOCATION (c
),
6375 "%<nonmonotonic%> modifier specified for %qs "
6376 "schedule kind", p
);
6377 OMP_CLAUSE_SCHEDULE_KIND (c
)
6378 = (enum omp_clause_schedule_kind
)
6379 (OMP_CLAUSE_SCHEDULE_KIND (c
)
6380 & ~OMP_CLAUSE_SCHEDULE_NONMONOTONIC
);
6384 t
= OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (c
);
6387 else if (t
== error_mark_node
)
6389 else if (!type_dependent_expression_p (t
)
6390 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6392 error ("schedule chunk size expression must be integral");
6397 t
= mark_rvalue_use (t
);
6398 if (!processing_template_decl
)
6400 t
= maybe_constant_value (t
);
6401 if (TREE_CODE (t
) == INTEGER_CST
6402 && tree_int_cst_sgn (t
) != 1)
6404 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
6405 "chunk size value must be positive");
6406 t
= integer_one_node
;
6408 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6410 OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (c
) = t
;
6414 case OMP_CLAUSE_SIMDLEN
:
6415 case OMP_CLAUSE_SAFELEN
:
6416 t
= OMP_CLAUSE_OPERAND (c
, 0);
6417 if (t
== error_mark_node
)
6419 else if (!type_dependent_expression_p (t
)
6420 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6422 error ("%qs length expression must be integral",
6423 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6428 t
= mark_rvalue_use (t
);
6429 if (!processing_template_decl
)
6431 t
= maybe_constant_value (t
);
6432 if (TREE_CODE (t
) != INTEGER_CST
6433 || tree_int_cst_sgn (t
) != 1)
6435 error ("%qs length expression must be positive constant"
6436 " integer expression",
6437 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6441 OMP_CLAUSE_OPERAND (c
, 0) = t
;
6442 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_SAFELEN
)
6447 case OMP_CLAUSE_ASYNC
:
6448 t
= OMP_CLAUSE_ASYNC_EXPR (c
);
6449 if (t
== error_mark_node
)
6451 else if (!type_dependent_expression_p (t
)
6452 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6454 error ("%<async%> expression must be integral");
6459 t
= mark_rvalue_use (t
);
6460 if (!processing_template_decl
)
6461 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6462 OMP_CLAUSE_ASYNC_EXPR (c
) = t
;
6466 case OMP_CLAUSE_WAIT
:
6467 t
= OMP_CLAUSE_WAIT_EXPR (c
);
6468 if (t
== error_mark_node
)
6470 else if (!processing_template_decl
)
6471 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6472 OMP_CLAUSE_WAIT_EXPR (c
) = t
;
6475 case OMP_CLAUSE_THREAD_LIMIT
:
6476 t
= OMP_CLAUSE_THREAD_LIMIT_EXPR (c
);
6477 if (t
== error_mark_node
)
6479 else if (!type_dependent_expression_p (t
)
6480 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6482 error ("%<thread_limit%> expression must be integral");
6487 t
= mark_rvalue_use (t
);
6488 if (!processing_template_decl
)
6490 t
= maybe_constant_value (t
);
6491 if (TREE_CODE (t
) == INTEGER_CST
6492 && tree_int_cst_sgn (t
) != 1)
6494 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
6495 "%<thread_limit%> value must be positive");
6496 t
= integer_one_node
;
6498 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6500 OMP_CLAUSE_THREAD_LIMIT_EXPR (c
) = t
;
6504 case OMP_CLAUSE_DEVICE
:
6505 t
= OMP_CLAUSE_DEVICE_ID (c
);
6506 if (t
== error_mark_node
)
6508 else if (!type_dependent_expression_p (t
)
6509 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6511 error ("%<device%> id must be integral");
6516 t
= mark_rvalue_use (t
);
6517 if (!processing_template_decl
)
6518 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6519 OMP_CLAUSE_DEVICE_ID (c
) = t
;
6523 case OMP_CLAUSE_DIST_SCHEDULE
:
6524 t
= OMP_CLAUSE_DIST_SCHEDULE_CHUNK_EXPR (c
);
6527 else if (t
== error_mark_node
)
6529 else if (!type_dependent_expression_p (t
)
6530 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6532 error ("%<dist_schedule%> chunk size expression must be "
6538 t
= mark_rvalue_use (t
);
6539 if (!processing_template_decl
)
6540 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
6541 OMP_CLAUSE_DIST_SCHEDULE_CHUNK_EXPR (c
) = t
;
6545 case OMP_CLAUSE_ALIGNED
:
6546 t
= OMP_CLAUSE_DECL (c
);
6547 if (t
== current_class_ptr
&& ort
!= C_ORT_OMP_DECLARE_SIMD
)
6549 error ("%<this%> allowed in OpenMP only in %<declare simd%>"
6554 if (!VAR_P (t
) && TREE_CODE (t
) != PARM_DECL
)
6556 if (processing_template_decl
&& TREE_CODE (t
) != OVERLOAD
)
6559 error ("%qD is not a variable in %<aligned%> clause", t
);
6561 error ("%qE is not a variable in %<aligned%> clause", t
);
6564 else if (!type_dependent_expression_p (t
)
6565 && TREE_CODE (TREE_TYPE (t
)) != POINTER_TYPE
6566 && TREE_CODE (TREE_TYPE (t
)) != ARRAY_TYPE
6567 && (TREE_CODE (TREE_TYPE (t
)) != REFERENCE_TYPE
6568 || (!POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (t
)))
6569 && (TREE_CODE (TREE_TYPE (TREE_TYPE (t
)))
6572 error_at (OMP_CLAUSE_LOCATION (c
),
6573 "%qE in %<aligned%> clause is neither a pointer nor "
6574 "an array nor a reference to pointer or array", t
);
6577 else if (bitmap_bit_p (&aligned_head
, DECL_UID (t
)))
6579 error ("%qD appears more than once in %<aligned%> clauses", t
);
6583 bitmap_set_bit (&aligned_head
, DECL_UID (t
));
6584 t
= OMP_CLAUSE_ALIGNED_ALIGNMENT (c
);
6585 if (t
== error_mark_node
)
6587 else if (t
== NULL_TREE
)
6589 else if (!type_dependent_expression_p (t
)
6590 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6592 error ("%<aligned%> clause alignment expression must "
6598 t
= mark_rvalue_use (t
);
6599 if (!processing_template_decl
)
6601 t
= maybe_constant_value (t
);
6602 if (TREE_CODE (t
) != INTEGER_CST
6603 || tree_int_cst_sgn (t
) != 1)
6605 error ("%<aligned%> clause alignment expression must be "
6606 "positive constant integer expression");
6610 OMP_CLAUSE_ALIGNED_ALIGNMENT (c
) = t
;
6614 case OMP_CLAUSE_DEPEND
:
6615 t
= OMP_CLAUSE_DECL (c
);
6618 gcc_assert (OMP_CLAUSE_DEPEND_KIND (c
)
6619 == OMP_CLAUSE_DEPEND_SOURCE
);
6622 if (OMP_CLAUSE_DEPEND_KIND (c
) == OMP_CLAUSE_DEPEND_SINK
)
6624 if (cp_finish_omp_clause_depend_sink (c
))
6628 if (TREE_CODE (t
) == TREE_LIST
)
6630 if (handle_omp_array_sections (c
, ort
))
6634 if (t
== error_mark_node
)
6636 else if (!VAR_P (t
) && TREE_CODE (t
) != PARM_DECL
)
6638 if (processing_template_decl
&& TREE_CODE (t
) != OVERLOAD
)
6641 error ("%qD is not a variable in %<depend%> clause", t
);
6643 error ("%qE is not a variable in %<depend%> clause", t
);
6646 else if (t
== current_class_ptr
)
6648 error ("%<this%> allowed in OpenMP only in %<declare simd%>"
6652 else if (!processing_template_decl
6653 && !cxx_mark_addressable (t
))
6657 case OMP_CLAUSE_MAP
:
6659 case OMP_CLAUSE_FROM
:
6660 case OMP_CLAUSE__CACHE_
:
6661 t
= OMP_CLAUSE_DECL (c
);
6662 if (TREE_CODE (t
) == TREE_LIST
)
6664 if (handle_omp_array_sections (c
, ort
))
6668 t
= OMP_CLAUSE_DECL (c
);
6669 if (TREE_CODE (t
) != TREE_LIST
6670 && !type_dependent_expression_p (t
)
6671 && !cp_omp_mappable_type (TREE_TYPE (t
)))
6673 error_at (OMP_CLAUSE_LOCATION (c
),
6674 "array section does not have mappable type "
6676 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6679 while (TREE_CODE (t
) == ARRAY_REF
)
6680 t
= TREE_OPERAND (t
, 0);
6681 if (TREE_CODE (t
) == COMPONENT_REF
6682 && TREE_CODE (TREE_TYPE (t
)) == ARRAY_TYPE
)
6684 while (TREE_CODE (t
) == COMPONENT_REF
)
6685 t
= TREE_OPERAND (t
, 0);
6686 if (REFERENCE_REF_P (t
))
6687 t
= TREE_OPERAND (t
, 0);
6688 if (bitmap_bit_p (&map_field_head
, DECL_UID (t
)))
6690 if (bitmap_bit_p (&map_head
, DECL_UID (t
)))
6692 if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_MAP
)
6693 error ("%qD appears more than once in motion"
6695 else if (ort
== C_ORT_ACC
)
6696 error ("%qD appears more than once in data"
6699 error ("%qD appears more than once in map"
6705 bitmap_set_bit (&map_head
, DECL_UID (t
));
6706 bitmap_set_bit (&map_field_head
, DECL_UID (t
));
6712 if (t
== error_mark_node
)
6717 if (REFERENCE_REF_P (t
)
6718 && TREE_CODE (TREE_OPERAND (t
, 0)) == COMPONENT_REF
)
6720 t
= TREE_OPERAND (t
, 0);
6721 OMP_CLAUSE_DECL (c
) = t
;
6723 if (TREE_CODE (t
) == COMPONENT_REF
6724 && (ort
& C_ORT_OMP_DECLARE_SIMD
) == C_ORT_OMP
6725 && OMP_CLAUSE_CODE (c
) != OMP_CLAUSE__CACHE_
)
6727 if (type_dependent_expression_p (t
))
6729 if (TREE_CODE (TREE_OPERAND (t
, 1)) == FIELD_DECL
6730 && DECL_BIT_FIELD (TREE_OPERAND (t
, 1)))
6732 error_at (OMP_CLAUSE_LOCATION (c
),
6733 "bit-field %qE in %qs clause",
6734 t
, omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6737 else if (!cp_omp_mappable_type (TREE_TYPE (t
)))
6739 error_at (OMP_CLAUSE_LOCATION (c
),
6740 "%qE does not have a mappable type in %qs clause",
6741 t
, omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6744 while (TREE_CODE (t
) == COMPONENT_REF
)
6746 if (TREE_TYPE (TREE_OPERAND (t
, 0))
6747 && (TREE_CODE (TREE_TYPE (TREE_OPERAND (t
, 0)))
6750 error_at (OMP_CLAUSE_LOCATION (c
),
6751 "%qE is a member of a union", t
);
6755 t
= TREE_OPERAND (t
, 0);
6759 if (REFERENCE_REF_P (t
))
6760 t
= TREE_OPERAND (t
, 0);
6761 if (VAR_P (t
) || TREE_CODE (t
) == PARM_DECL
)
6763 if (bitmap_bit_p (&map_field_head
, DECL_UID (t
)))
6764 goto handle_map_references
;
6767 if (!VAR_P (t
) && TREE_CODE (t
) != PARM_DECL
)
6769 if (processing_template_decl
&& TREE_CODE (t
) != OVERLOAD
)
6771 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_MAP
6772 && (OMP_CLAUSE_MAP_KIND (c
) == GOMP_MAP_POINTER
6773 || OMP_CLAUSE_MAP_KIND (c
) == GOMP_MAP_ALWAYS_POINTER
))
6776 error ("%qD is not a variable in %qs clause", t
,
6777 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6779 error ("%qE is not a variable in %qs clause", t
,
6780 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6783 else if (VAR_P (t
) && CP_DECL_THREAD_LOCAL_P (t
))
6785 error ("%qD is threadprivate variable in %qs clause", t
,
6786 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6789 else if (ort
!= C_ORT_ACC
&& t
== current_class_ptr
)
6791 error ("%<this%> allowed in OpenMP only in %<declare simd%>"
6796 else if (!processing_template_decl
6797 && TREE_CODE (TREE_TYPE (t
)) != REFERENCE_TYPE
6798 && (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_MAP
6799 || (OMP_CLAUSE_MAP_KIND (c
)
6800 != GOMP_MAP_FIRSTPRIVATE_POINTER
))
6801 && !cxx_mark_addressable (t
))
6803 else if (!(OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_MAP
6804 && (OMP_CLAUSE_MAP_KIND (c
) == GOMP_MAP_POINTER
6805 || (OMP_CLAUSE_MAP_KIND (c
)
6806 == GOMP_MAP_FIRSTPRIVATE_POINTER
)))
6807 && t
== OMP_CLAUSE_DECL (c
)
6808 && !type_dependent_expression_p (t
)
6809 && !cp_omp_mappable_type ((TREE_CODE (TREE_TYPE (t
))
6811 ? TREE_TYPE (TREE_TYPE (t
))
6814 error_at (OMP_CLAUSE_LOCATION (c
),
6815 "%qD does not have a mappable type in %qs clause", t
,
6816 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6819 else if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_MAP
6820 && OMP_CLAUSE_MAP_KIND (c
) == GOMP_MAP_FORCE_DEVICEPTR
6821 && !type_dependent_expression_p (t
)
6822 && !POINTER_TYPE_P (TREE_TYPE (t
)))
6824 error ("%qD is not a pointer variable", t
);
6827 else if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_MAP
6828 && OMP_CLAUSE_MAP_KIND (c
) == GOMP_MAP_FIRSTPRIVATE_POINTER
)
6830 if (bitmap_bit_p (&generic_head
, DECL_UID (t
))
6831 || bitmap_bit_p (&firstprivate_head
, DECL_UID (t
)))
6833 error ("%qD appears more than once in data clauses", t
);
6836 else if (bitmap_bit_p (&map_head
, DECL_UID (t
)))
6838 if (ort
== C_ORT_ACC
)
6839 error ("%qD appears more than once in data clauses", t
);
6841 error ("%qD appears both in data and map clauses", t
);
6845 bitmap_set_bit (&generic_head
, DECL_UID (t
));
6847 else if (bitmap_bit_p (&map_head
, DECL_UID (t
)))
6849 if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_MAP
)
6850 error ("%qD appears more than once in motion clauses", t
);
6851 if (ort
== C_ORT_ACC
)
6852 error ("%qD appears more than once in data clauses", t
);
6854 error ("%qD appears more than once in map clauses", t
);
6857 else if (bitmap_bit_p (&generic_head
, DECL_UID (t
))
6858 || bitmap_bit_p (&firstprivate_head
, DECL_UID (t
)))
6860 if (ort
== C_ORT_ACC
)
6861 error ("%qD appears more than once in data clauses", t
);
6863 error ("%qD appears both in data and map clauses", t
);
6868 bitmap_set_bit (&map_head
, DECL_UID (t
));
6869 if (t
!= OMP_CLAUSE_DECL (c
)
6870 && TREE_CODE (OMP_CLAUSE_DECL (c
)) == COMPONENT_REF
)
6871 bitmap_set_bit (&map_field_head
, DECL_UID (t
));
6873 handle_map_references
:
6875 && !processing_template_decl
6876 && (ort
& C_ORT_OMP_DECLARE_SIMD
) == C_ORT_OMP
6877 && TREE_CODE (TREE_TYPE (OMP_CLAUSE_DECL (c
))) == REFERENCE_TYPE
)
6879 t
= OMP_CLAUSE_DECL (c
);
6880 if (OMP_CLAUSE_CODE (c
) != OMP_CLAUSE_MAP
)
6882 OMP_CLAUSE_DECL (c
) = build_simple_mem_ref (t
);
6883 if (OMP_CLAUSE_SIZE (c
) == NULL_TREE
)
6885 = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (t
)));
6887 else if (OMP_CLAUSE_MAP_KIND (c
)
6888 != GOMP_MAP_FIRSTPRIVATE_POINTER
6889 && (OMP_CLAUSE_MAP_KIND (c
)
6890 != GOMP_MAP_FIRSTPRIVATE_REFERENCE
)
6891 && (OMP_CLAUSE_MAP_KIND (c
)
6892 != GOMP_MAP_ALWAYS_POINTER
))
6894 tree c2
= build_omp_clause (OMP_CLAUSE_LOCATION (c
),
6896 if (TREE_CODE (t
) == COMPONENT_REF
)
6897 OMP_CLAUSE_SET_MAP_KIND (c2
, GOMP_MAP_ALWAYS_POINTER
);
6899 OMP_CLAUSE_SET_MAP_KIND (c2
,
6900 GOMP_MAP_FIRSTPRIVATE_REFERENCE
);
6901 OMP_CLAUSE_DECL (c2
) = t
;
6902 OMP_CLAUSE_SIZE (c2
) = size_zero_node
;
6903 OMP_CLAUSE_CHAIN (c2
) = OMP_CLAUSE_CHAIN (c
);
6904 OMP_CLAUSE_CHAIN (c
) = c2
;
6905 OMP_CLAUSE_DECL (c
) = build_simple_mem_ref (t
);
6906 if (OMP_CLAUSE_SIZE (c
) == NULL_TREE
)
6908 = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (t
)));
6914 case OMP_CLAUSE_TO_DECLARE
:
6915 case OMP_CLAUSE_LINK
:
6916 t
= OMP_CLAUSE_DECL (c
);
6917 if (TREE_CODE (t
) == FUNCTION_DECL
6918 && OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_TO_DECLARE
)
6920 else if (!VAR_P (t
))
6922 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_TO_DECLARE
)
6924 if (TREE_CODE (t
) == TEMPLATE_ID_EXPR
)
6925 error_at (OMP_CLAUSE_LOCATION (c
),
6926 "template %qE in clause %qs", t
,
6927 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6928 else if (really_overloaded_fn (t
))
6929 error_at (OMP_CLAUSE_LOCATION (c
),
6930 "overloaded function name %qE in clause %qs", t
,
6931 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6933 error_at (OMP_CLAUSE_LOCATION (c
),
6934 "%qE is neither a variable nor a function name "
6936 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6939 error_at (OMP_CLAUSE_LOCATION (c
),
6940 "%qE is not a variable in clause %qs", t
,
6941 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6944 else if (DECL_THREAD_LOCAL_P (t
))
6946 error_at (OMP_CLAUSE_LOCATION (c
),
6947 "%qD is threadprivate variable in %qs clause", t
,
6948 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6951 else if (!cp_omp_mappable_type (TREE_TYPE (t
)))
6953 error_at (OMP_CLAUSE_LOCATION (c
),
6954 "%qD does not have a mappable type in %qs clause", t
,
6955 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
6960 if (bitmap_bit_p (&generic_head
, DECL_UID (t
)))
6962 error_at (OMP_CLAUSE_LOCATION (c
),
6963 "%qE appears more than once on the same "
6964 "%<declare target%> directive", t
);
6968 bitmap_set_bit (&generic_head
, DECL_UID (t
));
6971 case OMP_CLAUSE_UNIFORM
:
6972 t
= OMP_CLAUSE_DECL (c
);
6973 if (TREE_CODE (t
) != PARM_DECL
)
6975 if (processing_template_decl
)
6978 error ("%qD is not an argument in %<uniform%> clause", t
);
6980 error ("%qE is not an argument in %<uniform%> clause", t
);
6984 /* map_head bitmap is used as uniform_head if declare_simd. */
6985 bitmap_set_bit (&map_head
, DECL_UID (t
));
6986 goto check_dup_generic
;
6988 case OMP_CLAUSE_GRAINSIZE
:
6989 t
= OMP_CLAUSE_GRAINSIZE_EXPR (c
);
6990 if (t
== error_mark_node
)
6992 else if (!type_dependent_expression_p (t
)
6993 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
6995 error ("%<grainsize%> expression must be integral");
7000 t
= mark_rvalue_use (t
);
7001 if (!processing_template_decl
)
7003 t
= maybe_constant_value (t
);
7004 if (TREE_CODE (t
) == INTEGER_CST
7005 && tree_int_cst_sgn (t
) != 1)
7007 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
7008 "%<grainsize%> value must be positive");
7009 t
= integer_one_node
;
7011 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
7013 OMP_CLAUSE_GRAINSIZE_EXPR (c
) = t
;
7017 case OMP_CLAUSE_PRIORITY
:
7018 t
= OMP_CLAUSE_PRIORITY_EXPR (c
);
7019 if (t
== error_mark_node
)
7021 else if (!type_dependent_expression_p (t
)
7022 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
7024 error ("%<priority%> expression must be integral");
7029 t
= mark_rvalue_use (t
);
7030 if (!processing_template_decl
)
7032 t
= maybe_constant_value (t
);
7033 if (TREE_CODE (t
) == INTEGER_CST
7034 && tree_int_cst_sgn (t
) == -1)
7036 warning_at (OMP_CLAUSE_LOCATION (c
), 0,
7037 "%<priority%> value must be non-negative");
7038 t
= integer_one_node
;
7040 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
7042 OMP_CLAUSE_PRIORITY_EXPR (c
) = t
;
7046 case OMP_CLAUSE_HINT
:
7047 t
= OMP_CLAUSE_HINT_EXPR (c
);
7048 if (t
== error_mark_node
)
7050 else if (!type_dependent_expression_p (t
)
7051 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
7053 error ("%<num_tasks%> expression must be integral");
7058 t
= mark_rvalue_use (t
);
7059 if (!processing_template_decl
)
7061 t
= maybe_constant_value (t
);
7062 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
7064 OMP_CLAUSE_HINT_EXPR (c
) = t
;
7068 case OMP_CLAUSE_IS_DEVICE_PTR
:
7069 case OMP_CLAUSE_USE_DEVICE_PTR
:
7070 field_ok
= (ort
& C_ORT_OMP_DECLARE_SIMD
) == C_ORT_OMP
;
7071 t
= OMP_CLAUSE_DECL (c
);
7072 if (!type_dependent_expression_p (t
))
7074 tree type
= TREE_TYPE (t
);
7075 if (TREE_CODE (type
) != POINTER_TYPE
7076 && TREE_CODE (type
) != ARRAY_TYPE
7077 && (TREE_CODE (type
) != REFERENCE_TYPE
7078 || (TREE_CODE (TREE_TYPE (type
)) != POINTER_TYPE
7079 && TREE_CODE (TREE_TYPE (type
)) != ARRAY_TYPE
)))
7081 error_at (OMP_CLAUSE_LOCATION (c
),
7082 "%qs variable is neither a pointer, nor an array "
7083 "nor reference to pointer or array",
7084 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
7088 goto check_dup_generic
;
7090 case OMP_CLAUSE_NOWAIT
:
7091 case OMP_CLAUSE_DEFAULT
:
7092 case OMP_CLAUSE_UNTIED
:
7093 case OMP_CLAUSE_COLLAPSE
:
7094 case OMP_CLAUSE_MERGEABLE
:
7095 case OMP_CLAUSE_PARALLEL
:
7096 case OMP_CLAUSE_FOR
:
7097 case OMP_CLAUSE_SECTIONS
:
7098 case OMP_CLAUSE_TASKGROUP
:
7099 case OMP_CLAUSE_PROC_BIND
:
7100 case OMP_CLAUSE_NOGROUP
:
7101 case OMP_CLAUSE_THREADS
:
7102 case OMP_CLAUSE_SIMD
:
7103 case OMP_CLAUSE_DEFAULTMAP
:
7104 case OMP_CLAUSE_AUTO
:
7105 case OMP_CLAUSE_INDEPENDENT
:
7106 case OMP_CLAUSE_SEQ
:
7109 case OMP_CLAUSE_TILE
:
7110 for (tree list
= OMP_CLAUSE_TILE_LIST (c
); !remove
&& list
;
7111 list
= TREE_CHAIN (list
))
7113 t
= TREE_VALUE (list
);
7115 if (t
== error_mark_node
)
7117 else if (!type_dependent_expression_p (t
)
7118 && !INTEGRAL_TYPE_P (TREE_TYPE (t
)))
7120 error_at (OMP_CLAUSE_LOCATION (c
),
7121 "%<tile%> argument needs integral type");
7126 t
= mark_rvalue_use (t
);
7127 if (!processing_template_decl
)
7129 /* Zero is used to indicate '*', we permit you
7130 to get there via an ICE of value zero. */
7131 t
= maybe_constant_value (t
);
7132 if (!tree_fits_shwi_p (t
)
7133 || tree_to_shwi (t
) < 0)
7135 error_at (OMP_CLAUSE_LOCATION (c
),
7136 "%<tile%> argument needs positive "
7137 "integral constant");
7140 t
= fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
7144 /* Update list item. */
7145 TREE_VALUE (list
) = t
;
7149 case OMP_CLAUSE_ORDERED
:
7150 ordered_seen
= true;
7153 case OMP_CLAUSE_INBRANCH
:
7154 case OMP_CLAUSE_NOTINBRANCH
:
7157 error ("%<inbranch%> clause is incompatible with "
7169 *pc
= OMP_CLAUSE_CHAIN (c
);
7171 pc
= &OMP_CLAUSE_CHAIN (c
);
7174 for (pc
= &clauses
, c
= clauses
; c
; c
= *pc
)
7176 enum omp_clause_code c_kind
= OMP_CLAUSE_CODE (c
);
7177 bool remove
= false;
7178 bool need_complete_type
= false;
7179 bool need_default_ctor
= false;
7180 bool need_copy_ctor
= false;
7181 bool need_copy_assignment
= false;
7182 bool need_implicitly_determined
= false;
7183 bool need_dtor
= false;
7184 tree type
, inner_type
;
7188 case OMP_CLAUSE_SHARED
:
7189 need_implicitly_determined
= true;
7191 case OMP_CLAUSE_PRIVATE
:
7192 need_complete_type
= true;
7193 need_default_ctor
= true;
7195 need_implicitly_determined
= true;
7197 case OMP_CLAUSE_FIRSTPRIVATE
:
7198 need_complete_type
= true;
7199 need_copy_ctor
= true;
7201 need_implicitly_determined
= true;
7203 case OMP_CLAUSE_LASTPRIVATE
:
7204 need_complete_type
= true;
7205 need_copy_assignment
= true;
7206 need_implicitly_determined
= true;
7208 case OMP_CLAUSE_REDUCTION
:
7209 need_implicitly_determined
= true;
7211 case OMP_CLAUSE_LINEAR
:
7212 if (ort
!= C_ORT_OMP_DECLARE_SIMD
)
7213 need_implicitly_determined
= true;
7214 else if (OMP_CLAUSE_LINEAR_VARIABLE_STRIDE (c
)
7215 && !bitmap_bit_p (&map_head
,
7216 DECL_UID (OMP_CLAUSE_LINEAR_STEP (c
))))
7218 error_at (OMP_CLAUSE_LOCATION (c
),
7219 "%<linear%> clause step is a parameter %qD not "
7220 "specified in %<uniform%> clause",
7221 OMP_CLAUSE_LINEAR_STEP (c
));
7222 *pc
= OMP_CLAUSE_CHAIN (c
);
7226 case OMP_CLAUSE_COPYPRIVATE
:
7227 need_copy_assignment
= true;
7229 case OMP_CLAUSE_COPYIN
:
7230 need_copy_assignment
= true;
7232 case OMP_CLAUSE_SIMDLEN
:
7234 && !processing_template_decl
7235 && tree_int_cst_lt (OMP_CLAUSE_SAFELEN_EXPR (safelen
),
7236 OMP_CLAUSE_SIMDLEN_EXPR (c
)))
7238 error_at (OMP_CLAUSE_LOCATION (c
),
7239 "%<simdlen%> clause value is bigger than "
7240 "%<safelen%> clause value");
7241 OMP_CLAUSE_SIMDLEN_EXPR (c
)
7242 = OMP_CLAUSE_SAFELEN_EXPR (safelen
);
7244 pc
= &OMP_CLAUSE_CHAIN (c
);
7246 case OMP_CLAUSE_SCHEDULE
:
7248 && (OMP_CLAUSE_SCHEDULE_KIND (c
)
7249 & OMP_CLAUSE_SCHEDULE_NONMONOTONIC
))
7251 error_at (OMP_CLAUSE_LOCATION (c
),
7252 "%<nonmonotonic%> schedule modifier specified "
7253 "together with %<ordered%> clause");
7254 OMP_CLAUSE_SCHEDULE_KIND (c
)
7255 = (enum omp_clause_schedule_kind
)
7256 (OMP_CLAUSE_SCHEDULE_KIND (c
)
7257 & ~OMP_CLAUSE_SCHEDULE_NONMONOTONIC
);
7259 pc
= &OMP_CLAUSE_CHAIN (c
);
7261 case OMP_CLAUSE_NOWAIT
:
7262 if (copyprivate_seen
)
7264 error_at (OMP_CLAUSE_LOCATION (c
),
7265 "%<nowait%> clause must not be used together "
7266 "with %<copyprivate%>");
7267 *pc
= OMP_CLAUSE_CHAIN (c
);
7272 pc
= &OMP_CLAUSE_CHAIN (c
);
7276 t
= OMP_CLAUSE_DECL (c
);
7277 if (processing_template_decl
7278 && !VAR_P (t
) && TREE_CODE (t
) != PARM_DECL
)
7280 pc
= &OMP_CLAUSE_CHAIN (c
);
7286 case OMP_CLAUSE_LASTPRIVATE
:
7287 if (!bitmap_bit_p (&firstprivate_head
, DECL_UID (t
)))
7289 need_default_ctor
= true;
7294 case OMP_CLAUSE_REDUCTION
:
7295 if (finish_omp_reduction_clause (c
, &need_default_ctor
,
7299 t
= OMP_CLAUSE_DECL (c
);
7302 case OMP_CLAUSE_COPYIN
:
7303 if (!VAR_P (t
) || !CP_DECL_THREAD_LOCAL_P (t
))
7305 error ("%qE must be %<threadprivate%> for %<copyin%>", t
);
7314 if (need_complete_type
|| need_copy_assignment
)
7316 t
= require_complete_type (t
);
7317 if (t
== error_mark_node
)
7319 else if (TREE_CODE (TREE_TYPE (t
)) == REFERENCE_TYPE
7320 && !complete_type_or_else (TREE_TYPE (TREE_TYPE (t
)), t
))
7323 if (need_implicitly_determined
)
7325 const char *share_name
= NULL
;
7327 if (VAR_P (t
) && CP_DECL_THREAD_LOCAL_P (t
))
7328 share_name
= "threadprivate";
7329 else switch (cxx_omp_predetermined_sharing (t
))
7331 case OMP_CLAUSE_DEFAULT_UNSPECIFIED
:
7333 case OMP_CLAUSE_DEFAULT_SHARED
:
7334 /* const vars may be specified in firstprivate clause. */
7335 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_FIRSTPRIVATE
7336 && cxx_omp_const_qual_no_mutable (t
))
7338 share_name
= "shared";
7340 case OMP_CLAUSE_DEFAULT_PRIVATE
:
7341 share_name
= "private";
7348 error ("%qE is predetermined %qs for %qs",
7349 omp_clause_printable_decl (t
), share_name
,
7350 omp_clause_code_name
[OMP_CLAUSE_CODE (c
)]);
7355 /* We're interested in the base element, not arrays. */
7356 inner_type
= type
= TREE_TYPE (t
);
7357 if ((need_complete_type
7358 || need_copy_assignment
7359 || OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_REDUCTION
)
7360 && TREE_CODE (inner_type
) == REFERENCE_TYPE
)
7361 inner_type
= TREE_TYPE (inner_type
);
7362 while (TREE_CODE (inner_type
) == ARRAY_TYPE
)
7363 inner_type
= TREE_TYPE (inner_type
);
7365 /* Check for special function availability by building a call to one.
7366 Save the results, because later we won't be in the right context
7367 for making these queries. */
7368 if (CLASS_TYPE_P (inner_type
)
7369 && COMPLETE_TYPE_P (inner_type
)
7370 && (need_default_ctor
|| need_copy_ctor
7371 || need_copy_assignment
|| need_dtor
)
7372 && !type_dependent_expression_p (t
)
7373 && cxx_omp_create_clause_info (c
, inner_type
, need_default_ctor
,
7374 need_copy_ctor
, need_copy_assignment
,
7379 && c_kind
== OMP_CLAUSE_SHARED
7380 && processing_template_decl
)
7382 t
= omp_clause_decl_field (OMP_CLAUSE_DECL (c
));
7384 OMP_CLAUSE_DECL (c
) = t
;
7388 *pc
= OMP_CLAUSE_CHAIN (c
);
7390 pc
= &OMP_CLAUSE_CHAIN (c
);
7393 bitmap_obstack_release (NULL
);
7397 /* Start processing OpenMP clauses that can include any
7398 privatization clauses for non-static data members. */
7401 push_omp_privatization_clauses (bool ignore_next
)
7403 if (omp_private_member_ignore_next
)
7405 omp_private_member_ignore_next
= ignore_next
;
7408 omp_private_member_ignore_next
= ignore_next
;
7409 if (omp_private_member_map
)
7410 omp_private_member_vec
.safe_push (error_mark_node
);
7411 return push_stmt_list ();
7414 /* Revert remapping of any non-static data members since
7415 the last push_omp_privatization_clauses () call. */
7418 pop_omp_privatization_clauses (tree stmt
)
7420 if (stmt
== NULL_TREE
)
7422 stmt
= pop_stmt_list (stmt
);
7423 if (omp_private_member_map
)
7425 while (!omp_private_member_vec
.is_empty ())
7427 tree t
= omp_private_member_vec
.pop ();
7428 if (t
== error_mark_node
)
7433 bool no_decl_expr
= t
== integer_zero_node
;
7435 t
= omp_private_member_vec
.pop ();
7436 tree
*v
= omp_private_member_map
->get (t
);
7440 omp_private_member_map
->remove (t
);
7442 delete omp_private_member_map
;
7443 omp_private_member_map
= NULL
;
7448 /* Remember OpenMP privatization clauses mapping and clear it.
7449 Used for lambdas. */
7452 save_omp_privatization_clauses (vec
<tree
> &save
)
7455 if (omp_private_member_ignore_next
)
7456 save
.safe_push (integer_one_node
);
7457 omp_private_member_ignore_next
= false;
7458 if (!omp_private_member_map
)
7461 while (!omp_private_member_vec
.is_empty ())
7463 tree t
= omp_private_member_vec
.pop ();
7464 if (t
== error_mark_node
)
7470 if (t
== integer_zero_node
)
7471 t
= omp_private_member_vec
.pop ();
7472 tree
*v
= omp_private_member_map
->get (t
);
7474 save
.safe_push (*v
);
7479 delete omp_private_member_map
;
7480 omp_private_member_map
= NULL
;
7483 /* Restore OpenMP privatization clauses mapping saved by the
7487 restore_omp_privatization_clauses (vec
<tree
> &save
)
7489 gcc_assert (omp_private_member_vec
.is_empty ());
7490 omp_private_member_ignore_next
= false;
7491 if (save
.is_empty ())
7493 if (save
.length () == 1 && save
[0] == integer_one_node
)
7495 omp_private_member_ignore_next
= true;
7500 omp_private_member_map
= new hash_map
<tree
, tree
>;
7501 while (!save
.is_empty ())
7503 tree t
= save
.pop ();
7505 if (t
!= error_mark_node
)
7507 if (t
== integer_one_node
)
7509 omp_private_member_ignore_next
= true;
7510 gcc_assert (save
.is_empty ());
7513 if (t
== integer_zero_node
)
7515 tree
&v
= omp_private_member_map
->get_or_insert (t
);
7518 omp_private_member_vec
.safe_push (t
);
7520 omp_private_member_vec
.safe_push (n
);
7525 /* For all variables in the tree_list VARS, mark them as thread local. */
7528 finish_omp_threadprivate (tree vars
)
7532 /* Mark every variable in VARS to be assigned thread local storage. */
7533 for (t
= vars
; t
; t
= TREE_CHAIN (t
))
7535 tree v
= TREE_PURPOSE (t
);
7537 if (error_operand_p (v
))
7539 else if (!VAR_P (v
))
7540 error ("%<threadprivate%> %qD is not file, namespace "
7541 "or block scope variable", v
);
7542 /* If V had already been marked threadprivate, it doesn't matter
7543 whether it had been used prior to this point. */
7544 else if (TREE_USED (v
)
7545 && (DECL_LANG_SPECIFIC (v
) == NULL
7546 || !CP_DECL_THREADPRIVATE_P (v
)))
7547 error ("%qE declared %<threadprivate%> after first use", v
);
7548 else if (! TREE_STATIC (v
) && ! DECL_EXTERNAL (v
))
7549 error ("automatic variable %qE cannot be %<threadprivate%>", v
);
7550 else if (! COMPLETE_TYPE_P (complete_type (TREE_TYPE (v
))))
7551 error ("%<threadprivate%> %qE has incomplete type", v
);
7552 else if (TREE_STATIC (v
) && TYPE_P (CP_DECL_CONTEXT (v
))
7553 && CP_DECL_CONTEXT (v
) != current_class_type
)
7554 error ("%<threadprivate%> %qE directive not "
7555 "in %qT definition", v
, CP_DECL_CONTEXT (v
));
7558 /* Allocate a LANG_SPECIFIC structure for V, if needed. */
7559 if (DECL_LANG_SPECIFIC (v
) == NULL
)
7561 retrofit_lang_decl (v
);
7563 /* Make sure that DECL_DISCRIMINATOR_P continues to be true
7564 after the allocation of the lang_decl structure. */
7565 if (DECL_DISCRIMINATOR_P (v
))
7566 DECL_LANG_SPECIFIC (v
)->u
.base
.u2sel
= 1;
7569 if (! CP_DECL_THREAD_LOCAL_P (v
))
7571 CP_DECL_THREAD_LOCAL_P (v
) = true;
7572 set_decl_tls_model (v
, decl_default_tls_model (v
));
7573 /* If rtl has been already set for this var, call
7574 make_decl_rtl once again, so that encode_section_info
7575 has a chance to look at the new decl flags. */
7576 if (DECL_RTL_SET_P (v
))
7579 CP_DECL_THREADPRIVATE_P (v
) = 1;
7584 /* Build an OpenMP structured block. */
7587 begin_omp_structured_block (void)
7589 return do_pushlevel (sk_omp
);
7593 finish_omp_structured_block (tree block
)
7595 return do_poplevel (block
);
7598 /* Similarly, except force the retention of the BLOCK. */
7601 begin_omp_parallel (void)
7603 keep_next_level (true);
7604 return begin_omp_structured_block ();
7607 /* Generate OACC_DATA, with CLAUSES and BLOCK as its compound
7611 finish_oacc_data (tree clauses
, tree block
)
7615 block
= finish_omp_structured_block (block
);
7617 stmt
= make_node (OACC_DATA
);
7618 TREE_TYPE (stmt
) = void_type_node
;
7619 OACC_DATA_CLAUSES (stmt
) = clauses
;
7620 OACC_DATA_BODY (stmt
) = block
;
7622 return add_stmt (stmt
);
7625 /* Generate OACC_HOST_DATA, with CLAUSES and BLOCK as its compound
7629 finish_oacc_host_data (tree clauses
, tree block
)
7633 block
= finish_omp_structured_block (block
);
7635 stmt
= make_node (OACC_HOST_DATA
);
7636 TREE_TYPE (stmt
) = void_type_node
;
7637 OACC_HOST_DATA_CLAUSES (stmt
) = clauses
;
7638 OACC_HOST_DATA_BODY (stmt
) = block
;
7640 return add_stmt (stmt
);
7643 /* Generate OMP construct CODE, with BODY and CLAUSES as its compound
7647 finish_omp_construct (enum tree_code code
, tree body
, tree clauses
)
7649 body
= finish_omp_structured_block (body
);
7651 tree stmt
= make_node (code
);
7652 TREE_TYPE (stmt
) = void_type_node
;
7653 OMP_BODY (stmt
) = body
;
7654 OMP_CLAUSES (stmt
) = clauses
;
7656 return add_stmt (stmt
);
7660 finish_omp_parallel (tree clauses
, tree body
)
7664 body
= finish_omp_structured_block (body
);
7666 stmt
= make_node (OMP_PARALLEL
);
7667 TREE_TYPE (stmt
) = void_type_node
;
7668 OMP_PARALLEL_CLAUSES (stmt
) = clauses
;
7669 OMP_PARALLEL_BODY (stmt
) = body
;
7671 return add_stmt (stmt
);
7675 begin_omp_task (void)
7677 keep_next_level (true);
7678 return begin_omp_structured_block ();
7682 finish_omp_task (tree clauses
, tree body
)
7686 body
= finish_omp_structured_block (body
);
7688 stmt
= make_node (OMP_TASK
);
7689 TREE_TYPE (stmt
) = void_type_node
;
7690 OMP_TASK_CLAUSES (stmt
) = clauses
;
7691 OMP_TASK_BODY (stmt
) = body
;
7693 return add_stmt (stmt
);
7696 /* Helper function for finish_omp_for. Convert Ith random access iterator
7697 into integral iterator. Return FALSE if successful. */
7700 handle_omp_for_class_iterator (int i
, location_t locus
, enum tree_code code
,
7701 tree declv
, tree orig_declv
, tree initv
,
7702 tree condv
, tree incrv
, tree
*body
,
7703 tree
*pre_body
, tree
&clauses
, tree
*lastp
,
7704 int collapse
, int ordered
)
7706 tree diff
, iter_init
, iter_incr
= NULL
, last
;
7707 tree incr_var
= NULL
, orig_pre_body
, orig_body
, c
;
7708 tree decl
= TREE_VEC_ELT (declv
, i
);
7709 tree init
= TREE_VEC_ELT (initv
, i
);
7710 tree cond
= TREE_VEC_ELT (condv
, i
);
7711 tree incr
= TREE_VEC_ELT (incrv
, i
);
7713 location_t elocus
= locus
;
7715 if (init
&& EXPR_HAS_LOCATION (init
))
7716 elocus
= EXPR_LOCATION (init
);
7718 cond
= cp_fully_fold (cond
);
7719 switch (TREE_CODE (cond
))
7726 if (TREE_OPERAND (cond
, 1) == iter
)
7727 cond
= build2 (swap_tree_comparison (TREE_CODE (cond
)),
7728 TREE_TYPE (cond
), iter
, TREE_OPERAND (cond
, 0));
7729 if (TREE_OPERAND (cond
, 0) != iter
)
7730 cond
= error_mark_node
;
7733 tree tem
= build_x_binary_op (EXPR_LOCATION (cond
),
7736 TREE_OPERAND (cond
, 1), ERROR_MARK
,
7737 NULL
, tf_warning_or_error
);
7738 if (error_operand_p (tem
))
7743 cond
= error_mark_node
;
7746 if (cond
== error_mark_node
)
7748 error_at (elocus
, "invalid controlling predicate");
7751 diff
= build_x_binary_op (elocus
, MINUS_EXPR
, TREE_OPERAND (cond
, 1),
7752 ERROR_MARK
, iter
, ERROR_MARK
, NULL
,
7753 tf_warning_or_error
);
7754 diff
= cp_fully_fold (diff
);
7755 if (error_operand_p (diff
))
7757 if (TREE_CODE (TREE_TYPE (diff
)) != INTEGER_TYPE
)
7759 error_at (elocus
, "difference between %qE and %qD does not have integer type",
7760 TREE_OPERAND (cond
, 1), iter
);
7763 if (!c_omp_check_loop_iv_exprs (locus
, orig_declv
,
7764 TREE_VEC_ELT (declv
, i
), NULL_TREE
,
7765 cond
, cp_walk_subtrees
))
7768 switch (TREE_CODE (incr
))
7770 case PREINCREMENT_EXPR
:
7771 case PREDECREMENT_EXPR
:
7772 case POSTINCREMENT_EXPR
:
7773 case POSTDECREMENT_EXPR
:
7774 if (TREE_OPERAND (incr
, 0) != iter
)
7776 incr
= error_mark_node
;
7779 iter_incr
= build_x_unary_op (EXPR_LOCATION (incr
),
7780 TREE_CODE (incr
), iter
,
7781 tf_warning_or_error
);
7782 if (error_operand_p (iter_incr
))
7784 else if (TREE_CODE (incr
) == PREINCREMENT_EXPR
7785 || TREE_CODE (incr
) == POSTINCREMENT_EXPR
)
7786 incr
= integer_one_node
;
7788 incr
= integer_minus_one_node
;
7791 if (TREE_OPERAND (incr
, 0) != iter
)
7792 incr
= error_mark_node
;
7793 else if (TREE_CODE (TREE_OPERAND (incr
, 1)) == PLUS_EXPR
7794 || TREE_CODE (TREE_OPERAND (incr
, 1)) == MINUS_EXPR
)
7796 tree rhs
= TREE_OPERAND (incr
, 1);
7797 if (TREE_OPERAND (rhs
, 0) == iter
)
7799 if (TREE_CODE (TREE_TYPE (TREE_OPERAND (rhs
, 1)))
7801 incr
= error_mark_node
;
7804 iter_incr
= build_x_modify_expr (EXPR_LOCATION (rhs
),
7805 iter
, TREE_CODE (rhs
),
7806 TREE_OPERAND (rhs
, 1),
7807 tf_warning_or_error
);
7808 if (error_operand_p (iter_incr
))
7810 incr
= TREE_OPERAND (rhs
, 1);
7811 incr
= cp_convert (TREE_TYPE (diff
), incr
,
7812 tf_warning_or_error
);
7813 if (TREE_CODE (rhs
) == MINUS_EXPR
)
7815 incr
= build1 (NEGATE_EXPR
, TREE_TYPE (diff
), incr
);
7816 incr
= fold_simple (incr
);
7818 if (TREE_CODE (incr
) != INTEGER_CST
7819 && (TREE_CODE (incr
) != NOP_EXPR
7820 || (TREE_CODE (TREE_OPERAND (incr
, 0))
7825 else if (TREE_OPERAND (rhs
, 1) == iter
)
7827 if (TREE_CODE (TREE_TYPE (TREE_OPERAND (rhs
, 0))) != INTEGER_TYPE
7828 || TREE_CODE (rhs
) != PLUS_EXPR
)
7829 incr
= error_mark_node
;
7832 iter_incr
= build_x_binary_op (EXPR_LOCATION (rhs
),
7834 TREE_OPERAND (rhs
, 0),
7837 tf_warning_or_error
);
7838 if (error_operand_p (iter_incr
))
7840 iter_incr
= build_x_modify_expr (EXPR_LOCATION (rhs
),
7843 tf_warning_or_error
);
7844 if (error_operand_p (iter_incr
))
7846 incr
= TREE_OPERAND (rhs
, 0);
7851 incr
= error_mark_node
;
7854 incr
= error_mark_node
;
7857 incr
= error_mark_node
;
7861 if (incr
== error_mark_node
)
7863 error_at (elocus
, "invalid increment expression");
7867 incr
= cp_convert (TREE_TYPE (diff
), incr
, tf_warning_or_error
);
7868 bool taskloop_iv_seen
= false;
7869 for (c
= clauses
; c
; c
= OMP_CLAUSE_CHAIN (c
))
7870 if (OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_LASTPRIVATE
7871 && OMP_CLAUSE_DECL (c
) == iter
)
7873 if (code
== OMP_TASKLOOP
)
7875 taskloop_iv_seen
= true;
7876 OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV (c
) = 1;
7880 else if (code
== OMP_TASKLOOP
7881 && OMP_CLAUSE_CODE (c
) == OMP_CLAUSE_PRIVATE
7882 && OMP_CLAUSE_DECL (c
) == iter
)
7884 taskloop_iv_seen
= true;
7885 OMP_CLAUSE_PRIVATE_TASKLOOP_IV (c
) = 1;
7888 decl
= create_temporary_var (TREE_TYPE (diff
));
7890 add_decl_expr (decl
);
7891 last
= create_temporary_var (TREE_TYPE (diff
));
7893 add_decl_expr (last
);
7894 if (c
&& iter_incr
== NULL
&& TREE_CODE (incr
) != INTEGER_CST
7895 && (!ordered
|| (i
< collapse
&& collapse
> 1)))
7897 incr_var
= create_temporary_var (TREE_TYPE (diff
));
7898 pushdecl (incr_var
);
7899 add_decl_expr (incr_var
);
7901 gcc_assert (stmts_are_full_exprs_p ());
7902 tree diffvar
= NULL_TREE
;
7903 if (code
== OMP_TASKLOOP
)
7905 if (!taskloop_iv_seen
)
7907 tree ivc
= build_omp_clause (locus
, OMP_CLAUSE_FIRSTPRIVATE
);
7908 OMP_CLAUSE_DECL (ivc
) = iter
;
7909 cxx_omp_finish_clause (ivc
, NULL
);
7910 OMP_CLAUSE_CHAIN (ivc
) = clauses
;
7913 tree lvc
= build_omp_clause (locus
, OMP_CLAUSE_FIRSTPRIVATE
);
7914 OMP_CLAUSE_DECL (lvc
) = last
;
7915 OMP_CLAUSE_CHAIN (lvc
) = clauses
;
7917 diffvar
= create_temporary_var (TREE_TYPE (diff
));
7919 add_decl_expr (diffvar
);
7922 orig_pre_body
= *pre_body
;
7923 *pre_body
= push_stmt_list ();
7925 add_stmt (orig_pre_body
);
7927 finish_expr_stmt (build_x_modify_expr (elocus
,
7928 iter
, NOP_EXPR
, init
,
7929 tf_warning_or_error
));
7930 init
= build_int_cst (TREE_TYPE (diff
), 0);
7931 if (c
&& iter_incr
== NULL
7932 && (!ordered
|| (i
< collapse
&& collapse
> 1)))
7936 finish_expr_stmt (build_x_modify_expr (elocus
,
7938 incr
, tf_warning_or_error
));
7941 iter_incr
= build_x_modify_expr (elocus
,
7942 iter
, PLUS_EXPR
, incr
,
7943 tf_warning_or_error
);
7945 if (c
&& ordered
&& i
< collapse
&& collapse
> 1)
7947 finish_expr_stmt (build_x_modify_expr (elocus
,
7948 last
, NOP_EXPR
, init
,
7949 tf_warning_or_error
));
7952 finish_expr_stmt (build_x_modify_expr (elocus
,
7954 diff
, tf_warning_or_error
));
7957 *pre_body
= pop_stmt_list (*pre_body
);
7959 cond
= cp_build_binary_op (elocus
,
7960 TREE_CODE (cond
), decl
, diff
,
7961 tf_warning_or_error
);
7962 incr
= build_modify_expr (elocus
, decl
, NULL_TREE
, PLUS_EXPR
,
7963 elocus
, incr
, NULL_TREE
);
7966 *body
= push_stmt_list ();
7967 iter_init
= build2 (MINUS_EXPR
, TREE_TYPE (diff
), decl
, last
);
7968 iter_init
= build_x_modify_expr (elocus
,
7969 iter
, PLUS_EXPR
, iter_init
,
7970 tf_warning_or_error
);
7971 if (iter_init
!= error_mark_node
)
7972 iter_init
= build1 (NOP_EXPR
, void_type_node
, iter_init
);
7973 finish_expr_stmt (iter_init
);
7974 finish_expr_stmt (build_x_modify_expr (elocus
,
7975 last
, NOP_EXPR
, decl
,
7976 tf_warning_or_error
));
7977 add_stmt (orig_body
);
7978 *body
= pop_stmt_list (*body
);
7982 OMP_CLAUSE_LASTPRIVATE_STMT (c
) = push_stmt_list ();
7984 finish_expr_stmt (iter_incr
);
7988 if (i
< collapse
&& collapse
> 1 && !error_operand_p (iter_incr
))
7989 iter_init
= build2 (PLUS_EXPR
, TREE_TYPE (diff
),
7990 iter_init
, iter_incr
);
7991 iter_init
= build2 (MINUS_EXPR
, TREE_TYPE (diff
), iter_init
, last
);
7992 iter_init
= build_x_modify_expr (elocus
,
7993 iter
, PLUS_EXPR
, iter_init
,
7994 tf_warning_or_error
);
7995 if (iter_init
!= error_mark_node
)
7996 iter_init
= build1 (NOP_EXPR
, void_type_node
, iter_init
);
7997 finish_expr_stmt (iter_init
);
7999 OMP_CLAUSE_LASTPRIVATE_STMT (c
)
8000 = pop_stmt_list (OMP_CLAUSE_LASTPRIVATE_STMT (c
));
8003 TREE_VEC_ELT (declv
, i
) = decl
;
8004 TREE_VEC_ELT (initv
, i
) = init
;
8005 TREE_VEC_ELT (condv
, i
) = cond
;
8006 TREE_VEC_ELT (incrv
, i
) = incr
;
8012 /* Build and validate an OMP_FOR statement. CLAUSES, BODY, COND, INCR
8013 are directly for their associated operands in the statement. DECL
8014 and INIT are a combo; if DECL is NULL then INIT ought to be a
8015 MODIFY_EXPR, and the DECL should be extracted. PRE_BODY are
8016 optional statements that need to go before the loop into its
8020 finish_omp_for (location_t locus
, enum tree_code code
, tree declv
,
8021 tree orig_declv
, tree initv
, tree condv
, tree incrv
,
8022 tree body
, tree pre_body
, vec
<tree
> *orig_inits
, tree clauses
)
8024 tree omp_for
= NULL
, orig_incr
= NULL
;
8025 tree decl
= NULL
, init
, cond
, incr
;
8026 tree last
= NULL_TREE
;
8032 gcc_assert (TREE_VEC_LENGTH (declv
) == TREE_VEC_LENGTH (initv
));
8033 gcc_assert (TREE_VEC_LENGTH (declv
) == TREE_VEC_LENGTH (condv
));
8034 gcc_assert (TREE_VEC_LENGTH (declv
) == TREE_VEC_LENGTH (incrv
));
8035 if (TREE_VEC_LENGTH (declv
) > 1)
8039 c
= omp_find_clause (clauses
, OMP_CLAUSE_TILE
);
8041 collapse
= list_length (OMP_CLAUSE_TILE_LIST (c
));
8044 c
= omp_find_clause (clauses
, OMP_CLAUSE_COLLAPSE
);
8046 collapse
= tree_to_shwi (OMP_CLAUSE_COLLAPSE_EXPR (c
));
8047 if (collapse
!= TREE_VEC_LENGTH (declv
))
8048 ordered
= TREE_VEC_LENGTH (declv
);
8051 for (i
= 0; i
< TREE_VEC_LENGTH (declv
); i
++)
8053 decl
= TREE_VEC_ELT (declv
, i
);
8054 init
= TREE_VEC_ELT (initv
, i
);
8055 cond
= TREE_VEC_ELT (condv
, i
);
8056 incr
= TREE_VEC_ELT (incrv
, i
);
8062 switch (TREE_CODE (init
))
8065 decl
= TREE_OPERAND (init
, 0);
8066 init
= TREE_OPERAND (init
, 1);
8069 if (TREE_CODE (TREE_OPERAND (init
, 1)) == NOP_EXPR
)
8071 decl
= TREE_OPERAND (init
, 0);
8072 init
= TREE_OPERAND (init
, 2);
8082 "expected iteration declaration or initialization");
8087 if (init
&& EXPR_HAS_LOCATION (init
))
8088 elocus
= EXPR_LOCATION (init
);
8092 error_at (elocus
, "missing controlling predicate");
8098 error_at (elocus
, "missing increment expression");
8102 TREE_VEC_ELT (declv
, i
) = decl
;
8103 TREE_VEC_ELT (initv
, i
) = init
;
8110 FOR_EACH_VEC_ELT (*orig_inits
, i
, orig_init
)
8112 && !c_omp_check_loop_iv_exprs (locus
, declv
,
8113 TREE_VEC_ELT (declv
, i
), orig_init
,
8114 NULL_TREE
, cp_walk_subtrees
))
8120 if (dependent_omp_for_p (declv
, initv
, condv
, incrv
))
8124 stmt
= make_node (code
);
8126 for (i
= 0; i
< TREE_VEC_LENGTH (declv
); i
++)
8128 /* This is really just a place-holder. We'll be decomposing this
8129 again and going through the cp_build_modify_expr path below when
8130 we instantiate the thing. */
8131 TREE_VEC_ELT (initv
, i
)
8132 = build2 (MODIFY_EXPR
, void_type_node
, TREE_VEC_ELT (declv
, i
),
8133 TREE_VEC_ELT (initv
, i
));
8136 TREE_TYPE (stmt
) = void_type_node
;
8137 OMP_FOR_INIT (stmt
) = initv
;
8138 OMP_FOR_COND (stmt
) = condv
;
8139 OMP_FOR_INCR (stmt
) = incrv
;
8140 OMP_FOR_BODY (stmt
) = body
;
8141 OMP_FOR_PRE_BODY (stmt
) = pre_body
;
8142 OMP_FOR_CLAUSES (stmt
) = clauses
;
8144 SET_EXPR_LOCATION (stmt
, locus
);
8145 return add_stmt (stmt
);
8149 orig_declv
= copy_node (declv
);
8151 if (processing_template_decl
)
8152 orig_incr
= make_tree_vec (TREE_VEC_LENGTH (incrv
));
8154 for (i
= 0; i
< TREE_VEC_LENGTH (declv
); )
8156 decl
= TREE_VEC_ELT (declv
, i
);
8157 init
= TREE_VEC_ELT (initv
, i
);
8158 cond
= TREE_VEC_ELT (condv
, i
);
8159 incr
= TREE_VEC_ELT (incrv
, i
);
8161 TREE_VEC_ELT (orig_incr
, i
) = incr
;
8164 if (init
&& EXPR_HAS_LOCATION (init
))
8165 elocus
= EXPR_LOCATION (init
);
8169 error_at (elocus
, "expected iteration declaration or initialization");
8173 if (incr
&& TREE_CODE (incr
) == MODOP_EXPR
)
8176 TREE_VEC_ELT (orig_incr
, i
) = incr
;
8177 incr
= cp_build_modify_expr (elocus
, TREE_OPERAND (incr
, 0),
8178 TREE_CODE (TREE_OPERAND (incr
, 1)),
8179 TREE_OPERAND (incr
, 2),
8180 tf_warning_or_error
);
8183 if (CLASS_TYPE_P (TREE_TYPE (decl
)))
8185 if (code
== OMP_SIMD
)
8187 error_at (elocus
, "%<#pragma omp simd%> used with class "
8188 "iteration variable %qE", decl
);
8191 if (handle_omp_for_class_iterator (i
, locus
, code
, declv
, orig_declv
,
8192 initv
, condv
, incrv
, &body
,
8193 &pre_body
, clauses
, &last
,
8199 if (!INTEGRAL_TYPE_P (TREE_TYPE (decl
))
8200 && !TYPE_PTR_P (TREE_TYPE (decl
)))
8202 error_at (elocus
, "invalid type for iteration variable %qE", decl
);
8206 if (!processing_template_decl
)
8208 init
= fold_build_cleanup_point_expr (TREE_TYPE (init
), init
);
8209 init
= cp_build_modify_expr (elocus
, decl
, NOP_EXPR
, init
,
8210 tf_warning_or_error
);
8213 init
= build2 (MODIFY_EXPR
, void_type_node
, decl
, init
);
8215 && TREE_SIDE_EFFECTS (cond
)
8216 && COMPARISON_CLASS_P (cond
)
8217 && !processing_template_decl
)
8219 tree t
= TREE_OPERAND (cond
, 0);
8220 if (TREE_SIDE_EFFECTS (t
)
8222 && (TREE_CODE (t
) != NOP_EXPR
8223 || TREE_OPERAND (t
, 0) != decl
))
8224 TREE_OPERAND (cond
, 0)
8225 = fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
8227 t
= TREE_OPERAND (cond
, 1);
8228 if (TREE_SIDE_EFFECTS (t
)
8230 && (TREE_CODE (t
) != NOP_EXPR
8231 || TREE_OPERAND (t
, 0) != decl
))
8232 TREE_OPERAND (cond
, 1)
8233 = fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
8235 if (decl
== error_mark_node
|| init
== error_mark_node
)
8238 TREE_VEC_ELT (declv
, i
) = decl
;
8239 TREE_VEC_ELT (initv
, i
) = init
;
8240 TREE_VEC_ELT (condv
, i
) = cond
;
8241 TREE_VEC_ELT (incrv
, i
) = incr
;
8245 if (IS_EMPTY_STMT (pre_body
))
8248 omp_for
= c_finish_omp_for (locus
, code
, declv
, orig_declv
, initv
, condv
,
8249 incrv
, body
, pre_body
);
8251 /* Check for iterators appearing in lb, b or incr expressions. */
8252 if (omp_for
&& !c_omp_check_loop_iv (omp_for
, orig_declv
, cp_walk_subtrees
))
8253 omp_for
= NULL_TREE
;
8255 if (omp_for
== NULL
)
8262 for (i
= 0; i
< TREE_VEC_LENGTH (OMP_FOR_INCR (omp_for
)); i
++)
8264 decl
= TREE_OPERAND (TREE_VEC_ELT (OMP_FOR_INIT (omp_for
), i
), 0);
8265 incr
= TREE_VEC_ELT (OMP_FOR_INCR (omp_for
), i
);
8267 if (TREE_CODE (incr
) != MODIFY_EXPR
)
8270 if (TREE_SIDE_EFFECTS (TREE_OPERAND (incr
, 1))
8271 && BINARY_CLASS_P (TREE_OPERAND (incr
, 1))
8272 && !processing_template_decl
)
8274 tree t
= TREE_OPERAND (TREE_OPERAND (incr
, 1), 0);
8275 if (TREE_SIDE_EFFECTS (t
)
8277 && (TREE_CODE (t
) != NOP_EXPR
8278 || TREE_OPERAND (t
, 0) != decl
))
8279 TREE_OPERAND (TREE_OPERAND (incr
, 1), 0)
8280 = fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
8282 t
= TREE_OPERAND (TREE_OPERAND (incr
, 1), 1);
8283 if (TREE_SIDE_EFFECTS (t
)
8285 && (TREE_CODE (t
) != NOP_EXPR
8286 || TREE_OPERAND (t
, 0) != decl
))
8287 TREE_OPERAND (TREE_OPERAND (incr
, 1), 1)
8288 = fold_build_cleanup_point_expr (TREE_TYPE (t
), t
);
8292 TREE_VEC_ELT (OMP_FOR_INCR (omp_for
), i
) = TREE_VEC_ELT (orig_incr
, i
);
8294 OMP_FOR_CLAUSES (omp_for
) = clauses
;
8296 /* For simd loops with non-static data member iterators, we could have added
8297 OMP_CLAUSE_LINEAR clauses without OMP_CLAUSE_LINEAR_STEP. As we know the
8298 step at this point, fill it in. */
8299 if (code
== OMP_SIMD
&& !processing_template_decl
8300 && TREE_VEC_LENGTH (OMP_FOR_INCR (omp_for
)) == 1)
8301 for (tree c
= omp_find_clause (clauses
, OMP_CLAUSE_LINEAR
); c
;
8302 c
= omp_find_clause (OMP_CLAUSE_CHAIN (c
), OMP_CLAUSE_LINEAR
))
8303 if (OMP_CLAUSE_LINEAR_STEP (c
) == NULL_TREE
)
8305 decl
= TREE_OPERAND (TREE_VEC_ELT (OMP_FOR_INIT (omp_for
), 0), 0);
8306 gcc_assert (decl
== OMP_CLAUSE_DECL (c
));
8307 incr
= TREE_VEC_ELT (OMP_FOR_INCR (omp_for
), 0);
8309 switch (TREE_CODE (incr
))
8311 case PREINCREMENT_EXPR
:
8312 case POSTINCREMENT_EXPR
:
8313 /* c_omp_for_incr_canonicalize_ptr() should have been
8314 called to massage things appropriately. */
8315 gcc_assert (!POINTER_TYPE_P (TREE_TYPE (decl
)));
8316 OMP_CLAUSE_LINEAR_STEP (c
) = build_int_cst (TREE_TYPE (decl
), 1);
8318 case PREDECREMENT_EXPR
:
8319 case POSTDECREMENT_EXPR
:
8320 /* c_omp_for_incr_canonicalize_ptr() should have been
8321 called to massage things appropriately. */
8322 gcc_assert (!POINTER_TYPE_P (TREE_TYPE (decl
)));
8323 OMP_CLAUSE_LINEAR_STEP (c
)
8324 = build_int_cst (TREE_TYPE (decl
), -1);
8327 gcc_assert (TREE_OPERAND (incr
, 0) == decl
);
8328 incr
= TREE_OPERAND (incr
, 1);
8329 switch (TREE_CODE (incr
))
8332 if (TREE_OPERAND (incr
, 1) == decl
)
8333 step
= TREE_OPERAND (incr
, 0);
8335 step
= TREE_OPERAND (incr
, 1);
8338 case POINTER_PLUS_EXPR
:
8339 gcc_assert (TREE_OPERAND (incr
, 0) == decl
);
8340 step
= TREE_OPERAND (incr
, 1);
8345 stept
= TREE_TYPE (decl
);
8346 if (POINTER_TYPE_P (stept
))
8348 step
= fold_convert (stept
, step
);
8349 if (TREE_CODE (incr
) == MINUS_EXPR
)
8350 step
= fold_build1 (NEGATE_EXPR
, stept
, step
);
8351 OMP_CLAUSE_LINEAR_STEP (c
) = step
;
8362 finish_omp_atomic (enum tree_code code
, enum tree_code opcode
, tree lhs
,
8363 tree rhs
, tree v
, tree lhs1
, tree rhs1
, bool seq_cst
)
8378 dependent_p
= false;
8381 /* Even in a template, we can detect invalid uses of the atomic
8382 pragma if neither LHS nor RHS is type-dependent. */
8383 if (processing_template_decl
)
8385 dependent_p
= (type_dependent_expression_p (lhs
)
8386 || (rhs
&& type_dependent_expression_p (rhs
))
8387 || (v
&& type_dependent_expression_p (v
))
8388 || (lhs1
&& type_dependent_expression_p (lhs1
))
8389 || (rhs1
&& type_dependent_expression_p (rhs1
)));
8392 lhs
= build_non_dependent_expr (lhs
);
8394 rhs
= build_non_dependent_expr (rhs
);
8396 v
= build_non_dependent_expr (v
);
8398 lhs1
= build_non_dependent_expr (lhs1
);
8400 rhs1
= build_non_dependent_expr (rhs1
);
8405 bool swapped
= false;
8406 if (rhs1
&& cp_tree_equal (lhs
, rhs
))
8408 std::swap (rhs
, rhs1
);
8409 swapped
= !commutative_tree_code (opcode
);
8411 if (rhs1
&& !cp_tree_equal (lhs
, rhs1
))
8413 if (code
== OMP_ATOMIC
)
8414 error ("%<#pragma omp atomic update%> uses two different "
8415 "expressions for memory");
8417 error ("%<#pragma omp atomic capture%> uses two different "
8418 "expressions for memory");
8421 if (lhs1
&& !cp_tree_equal (lhs
, lhs1
))
8423 if (code
== OMP_ATOMIC
)
8424 error ("%<#pragma omp atomic update%> uses two different "
8425 "expressions for memory");
8427 error ("%<#pragma omp atomic capture%> uses two different "
8428 "expressions for memory");
8431 stmt
= c_finish_omp_atomic (input_location
, code
, opcode
, lhs
, rhs
,
8432 v
, lhs1
, rhs1
, swapped
, seq_cst
,
8433 processing_template_decl
!= 0);
8434 if (stmt
== error_mark_node
)
8437 if (processing_template_decl
)
8439 if (code
== OMP_ATOMIC_READ
)
8441 stmt
= build_min_nt_loc (EXPR_LOCATION (orig_lhs
),
8442 OMP_ATOMIC_READ
, orig_lhs
);
8443 OMP_ATOMIC_SEQ_CST (stmt
) = seq_cst
;
8444 stmt
= build2 (MODIFY_EXPR
, void_type_node
, orig_v
, stmt
);
8448 if (opcode
== NOP_EXPR
)
8449 stmt
= build2 (MODIFY_EXPR
, void_type_node
, orig_lhs
, orig_rhs
);
8451 stmt
= build2 (opcode
, void_type_node
, orig_lhs
, orig_rhs
);
8453 stmt
= build_min_nt_loc (EXPR_LOCATION (orig_rhs1
),
8454 COMPOUND_EXPR
, orig_rhs1
, stmt
);
8455 if (code
!= OMP_ATOMIC
)
8457 stmt
= build_min_nt_loc (EXPR_LOCATION (orig_lhs1
),
8458 code
, orig_lhs1
, stmt
);
8459 OMP_ATOMIC_SEQ_CST (stmt
) = seq_cst
;
8460 stmt
= build2 (MODIFY_EXPR
, void_type_node
, orig_v
, stmt
);
8463 stmt
= build2 (OMP_ATOMIC
, void_type_node
, integer_zero_node
, stmt
);
8464 OMP_ATOMIC_SEQ_CST (stmt
) = seq_cst
;
8466 finish_expr_stmt (stmt
);
8470 finish_omp_barrier (void)
8472 tree fn
= builtin_decl_explicit (BUILT_IN_GOMP_BARRIER
);
8473 vec
<tree
, va_gc
> *vec
= make_tree_vector ();
8474 tree stmt
= finish_call_expr (fn
, &vec
, false, false, tf_warning_or_error
);
8475 release_tree_vector (vec
);
8476 finish_expr_stmt (stmt
);
8480 finish_omp_flush (void)
8482 tree fn
= builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE
);
8483 vec
<tree
, va_gc
> *vec
= make_tree_vector ();
8484 tree stmt
= finish_call_expr (fn
, &vec
, false, false, tf_warning_or_error
);
8485 release_tree_vector (vec
);
8486 finish_expr_stmt (stmt
);
8490 finish_omp_taskwait (void)
8492 tree fn
= builtin_decl_explicit (BUILT_IN_GOMP_TASKWAIT
);
8493 vec
<tree
, va_gc
> *vec
= make_tree_vector ();
8494 tree stmt
= finish_call_expr (fn
, &vec
, false, false, tf_warning_or_error
);
8495 release_tree_vector (vec
);
8496 finish_expr_stmt (stmt
);
8500 finish_omp_taskyield (void)
8502 tree fn
= builtin_decl_explicit (BUILT_IN_GOMP_TASKYIELD
);
8503 vec
<tree
, va_gc
> *vec
= make_tree_vector ();
8504 tree stmt
= finish_call_expr (fn
, &vec
, false, false, tf_warning_or_error
);
8505 release_tree_vector (vec
);
8506 finish_expr_stmt (stmt
);
8510 finish_omp_cancel (tree clauses
)
8512 tree fn
= builtin_decl_explicit (BUILT_IN_GOMP_CANCEL
);
8514 if (omp_find_clause (clauses
, OMP_CLAUSE_PARALLEL
))
8516 else if (omp_find_clause (clauses
, OMP_CLAUSE_FOR
))
8518 else if (omp_find_clause (clauses
, OMP_CLAUSE_SECTIONS
))
8520 else if (omp_find_clause (clauses
, OMP_CLAUSE_TASKGROUP
))
8524 error ("%<#pragma omp cancel%> must specify one of "
8525 "%<parallel%>, %<for%>, %<sections%> or %<taskgroup%> clauses");
8528 vec
<tree
, va_gc
> *vec
= make_tree_vector ();
8529 tree ifc
= omp_find_clause (clauses
, OMP_CLAUSE_IF
);
8530 if (ifc
!= NULL_TREE
)
8532 tree type
= TREE_TYPE (OMP_CLAUSE_IF_EXPR (ifc
));
8533 ifc
= fold_build2_loc (OMP_CLAUSE_LOCATION (ifc
), NE_EXPR
,
8534 boolean_type_node
, OMP_CLAUSE_IF_EXPR (ifc
),
8535 build_zero_cst (type
));
8538 ifc
= boolean_true_node
;
8539 vec
->quick_push (build_int_cst (integer_type_node
, mask
));
8540 vec
->quick_push (ifc
);
8541 tree stmt
= finish_call_expr (fn
, &vec
, false, false, tf_warning_or_error
);
8542 release_tree_vector (vec
);
8543 finish_expr_stmt (stmt
);
8547 finish_omp_cancellation_point (tree clauses
)
8549 tree fn
= builtin_decl_explicit (BUILT_IN_GOMP_CANCELLATION_POINT
);
8551 if (omp_find_clause (clauses
, OMP_CLAUSE_PARALLEL
))
8553 else if (omp_find_clause (clauses
, OMP_CLAUSE_FOR
))
8555 else if (omp_find_clause (clauses
, OMP_CLAUSE_SECTIONS
))
8557 else if (omp_find_clause (clauses
, OMP_CLAUSE_TASKGROUP
))
8561 error ("%<#pragma omp cancellation point%> must specify one of "
8562 "%<parallel%>, %<for%>, %<sections%> or %<taskgroup%> clauses");
8565 vec
<tree
, va_gc
> *vec
8566 = make_tree_vector_single (build_int_cst (integer_type_node
, mask
));
8567 tree stmt
= finish_call_expr (fn
, &vec
, false, false, tf_warning_or_error
);
8568 release_tree_vector (vec
);
8569 finish_expr_stmt (stmt
);
8572 /* Begin a __transaction_atomic or __transaction_relaxed statement.
8573 If PCOMPOUND is non-null, this is for a function-transaction-block, and we
8574 should create an extra compound stmt. */
8577 begin_transaction_stmt (location_t loc
, tree
*pcompound
, int flags
)
8582 *pcompound
= begin_compound_stmt (0);
8584 r
= build_stmt (loc
, TRANSACTION_EXPR
, NULL_TREE
);
8586 /* Only add the statement to the function if support enabled. */
8590 error_at (loc
, ((flags
& TM_STMT_ATTR_RELAXED
) != 0
8591 ? G_("%<__transaction_relaxed%> without "
8592 "transactional memory support enabled")
8593 : G_("%<__transaction_atomic%> without "
8594 "transactional memory support enabled")));
8596 TRANSACTION_EXPR_BODY (r
) = push_stmt_list ();
8597 TREE_SIDE_EFFECTS (r
) = 1;
8601 /* End a __transaction_atomic or __transaction_relaxed statement.
8602 If COMPOUND_STMT is non-null, this is for a function-transaction-block,
8603 and we should end the compound. If NOEX is non-NULL, we wrap the body in
8604 a MUST_NOT_THROW_EXPR with NOEX as condition. */
8607 finish_transaction_stmt (tree stmt
, tree compound_stmt
, int flags
, tree noex
)
8609 TRANSACTION_EXPR_BODY (stmt
) = pop_stmt_list (TRANSACTION_EXPR_BODY (stmt
));
8610 TRANSACTION_EXPR_OUTER (stmt
) = (flags
& TM_STMT_ATTR_OUTER
) != 0;
8611 TRANSACTION_EXPR_RELAXED (stmt
) = (flags
& TM_STMT_ATTR_RELAXED
) != 0;
8612 TRANSACTION_EXPR_IS_STMT (stmt
) = 1;
8614 /* noexcept specifications are not allowed for function transactions. */
8615 gcc_assert (!(noex
&& compound_stmt
));
8618 tree body
= build_must_not_throw_expr (TRANSACTION_EXPR_BODY (stmt
),
8620 protected_set_expr_location
8621 (body
, EXPR_LOCATION (TRANSACTION_EXPR_BODY (stmt
)));
8622 TREE_SIDE_EFFECTS (body
) = 1;
8623 TRANSACTION_EXPR_BODY (stmt
) = body
;
8627 finish_compound_stmt (compound_stmt
);
8630 /* Build a __transaction_atomic or __transaction_relaxed expression. If
8631 NOEX is non-NULL, we wrap the body in a MUST_NOT_THROW_EXPR with NOEX as
8635 build_transaction_expr (location_t loc
, tree expr
, int flags
, tree noex
)
8640 expr
= build_must_not_throw_expr (expr
, noex
);
8641 protected_set_expr_location (expr
, loc
);
8642 TREE_SIDE_EFFECTS (expr
) = 1;
8644 ret
= build1 (TRANSACTION_EXPR
, TREE_TYPE (expr
), expr
);
8645 if (flags
& TM_STMT_ATTR_RELAXED
)
8646 TRANSACTION_EXPR_RELAXED (ret
) = 1;
8647 TREE_SIDE_EFFECTS (ret
) = 1;
8648 SET_EXPR_LOCATION (ret
, loc
);
8653 init_cp_semantics (void)
8657 /* Build a STATIC_ASSERT for a static assertion with the condition
8658 CONDITION and the message text MESSAGE. LOCATION is the location
8659 of the static assertion in the source code. When MEMBER_P, this
8660 static assertion is a member of a class. */
8662 finish_static_assert (tree condition
, tree message
, location_t location
,
8665 tsubst_flags_t complain
= tf_warning_or_error
;
8667 if (message
== NULL_TREE
8668 || message
== error_mark_node
8669 || condition
== NULL_TREE
8670 || condition
== error_mark_node
)
8673 if (check_for_bare_parameter_packs (condition
))
8674 condition
= error_mark_node
;
8676 if (instantiation_dependent_expression_p (condition
))
8678 /* We're in a template; build a STATIC_ASSERT and put it in
8682 assertion
= make_node (STATIC_ASSERT
);
8683 STATIC_ASSERT_CONDITION (assertion
) = condition
;
8684 STATIC_ASSERT_MESSAGE (assertion
) = message
;
8685 STATIC_ASSERT_SOURCE_LOCATION (assertion
) = location
;
8688 maybe_add_class_template_decl_list (current_class_type
,
8692 add_stmt (assertion
);
8697 /* Fold the expression and convert it to a boolean value. */
8698 condition
= perform_implicit_conversion_flags (boolean_type_node
, condition
,
8699 complain
, LOOKUP_NORMAL
);
8700 condition
= fold_non_dependent_expr (condition
);
8702 if (TREE_CODE (condition
) == INTEGER_CST
&& !integer_zerop (condition
))
8703 /* Do nothing; the condition is satisfied. */
8707 location_t saved_loc
= input_location
;
8709 input_location
= location
;
8710 if (TREE_CODE (condition
) == INTEGER_CST
8711 && integer_zerop (condition
))
8713 int sz
= TREE_INT_CST_LOW (TYPE_SIZE_UNIT
8714 (TREE_TYPE (TREE_TYPE (message
))));
8715 int len
= TREE_STRING_LENGTH (message
) / sz
- 1;
8716 /* Report the error. */
8718 error ("static assertion failed");
8720 error ("static assertion failed: %s",
8721 TREE_STRING_POINTER (message
));
8723 else if (condition
&& condition
!= error_mark_node
)
8725 error ("non-constant condition for static assertion");
8726 if (require_rvalue_constant_expression (condition
))
8727 cxx_constant_value (condition
);
8729 input_location
= saved_loc
;
8733 /* Implements the C++0x decltype keyword. Returns the type of EXPR,
8734 suitable for use as a type-specifier.
8736 ID_EXPRESSION_OR_MEMBER_ACCESS_P is true when EXPR was parsed as an
8737 id-expression or a class member access, FALSE when it was parsed as
8738 a full expression. */
8741 finish_decltype_type (tree expr
, bool id_expression_or_member_access_p
,
8742 tsubst_flags_t complain
)
8744 tree type
= NULL_TREE
;
8746 if (!expr
|| error_operand_p (expr
))
8747 return error_mark_node
;
8750 || TREE_CODE (expr
) == TYPE_DECL
8751 || (TREE_CODE (expr
) == BIT_NOT_EXPR
8752 && TYPE_P (TREE_OPERAND (expr
, 0))))
8754 if (complain
& tf_error
)
8755 error ("argument to decltype must be an expression");
8756 return error_mark_node
;
8759 /* Depending on the resolution of DR 1172, we may later need to distinguish
8760 instantiation-dependent but not type-dependent expressions so that, say,
8761 A<decltype(sizeof(T))>::U doesn't require 'typename'. */
8762 if (instantiation_dependent_uneval_expression_p (expr
))
8764 type
= cxx_make_type (DECLTYPE_TYPE
);
8765 DECLTYPE_TYPE_EXPR (type
) = expr
;
8766 DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P (type
)
8767 = id_expression_or_member_access_p
;
8768 SET_TYPE_STRUCTURAL_EQUALITY (type
);
8773 /* The type denoted by decltype(e) is defined as follows: */
8775 expr
= resolve_nondeduced_context (expr
, complain
);
8777 if (invalid_nonstatic_memfn_p (input_location
, expr
, complain
))
8778 return error_mark_node
;
8780 if (type_unknown_p (expr
))
8782 if (complain
& tf_error
)
8783 error ("decltype cannot resolve address of overloaded function");
8784 return error_mark_node
;
8787 /* To get the size of a static data member declared as an array of
8788 unknown bound, we need to instantiate it. */
8790 && VAR_HAD_UNKNOWN_BOUND (expr
)
8791 && DECL_TEMPLATE_INSTANTIATION (expr
))
8792 instantiate_decl (expr
, /*defer_ok*/true, /*expl_inst_mem*/false);
8794 if (id_expression_or_member_access_p
)
8796 /* If e is an id-expression or a class member access (5.2.5
8797 [expr.ref]), decltype(e) is defined as the type of the entity
8798 named by e. If there is no such entity, or e names a set of
8799 overloaded functions, the program is ill-formed. */
8800 if (identifier_p (expr
))
8801 expr
= lookup_name (expr
);
8803 if (INDIRECT_REF_P (expr
))
8804 /* This can happen when the expression is, e.g., "a.b". Just
8805 look at the underlying operand. */
8806 expr
= TREE_OPERAND (expr
, 0);
8808 if (TREE_CODE (expr
) == OFFSET_REF
8809 || TREE_CODE (expr
) == MEMBER_REF
8810 || TREE_CODE (expr
) == SCOPE_REF
)
8811 /* We're only interested in the field itself. If it is a
8812 BASELINK, we will need to see through it in the next
8814 expr
= TREE_OPERAND (expr
, 1);
8816 if (BASELINK_P (expr
))
8817 /* See through BASELINK nodes to the underlying function. */
8818 expr
= BASELINK_FUNCTIONS (expr
);
8820 /* decltype of a decomposition name drops references in the tuple case
8821 (unlike decltype of a normal variable) and keeps cv-qualifiers from
8822 the containing object in the other cases (unlike decltype of a member
8823 access expression). */
8824 if (DECL_DECOMPOSITION_P (expr
))
8826 if (DECL_HAS_VALUE_EXPR_P (expr
))
8827 /* Expr is an array or struct subobject proxy, handle
8828 bit-fields properly. */
8829 return unlowered_expr_type (expr
);
8831 /* Expr is a reference variable for the tuple case. */
8832 return lookup_decomp_type (expr
);
8835 switch (TREE_CODE (expr
))
8838 if (DECL_BIT_FIELD_TYPE (expr
))
8840 type
= DECL_BIT_FIELD_TYPE (expr
);
8843 /* Fall through for fields that aren't bitfields. */
8851 case TEMPLATE_PARM_INDEX
:
8852 expr
= mark_type_use (expr
);
8853 type
= TREE_TYPE (expr
);
8857 type
= error_mark_node
;
8862 mark_type_use (expr
);
8863 type
= is_bitfield_expr_with_lowered_type (expr
);
8865 type
= TREE_TYPE (TREE_OPERAND (expr
, 1));
8873 /* We can get here when the id-expression refers to an
8874 enumerator or non-type template parameter. */
8875 type
= TREE_TYPE (expr
);
8879 /* Handle instantiated template non-type arguments. */
8880 type
= TREE_TYPE (expr
);
8886 /* Within a lambda-expression:
8888 Every occurrence of decltype((x)) where x is a possibly
8889 parenthesized id-expression that names an entity of
8890 automatic storage duration is treated as if x were
8891 transformed into an access to a corresponding data member
8892 of the closure type that would have been declared if x
8893 were a use of the denoted entity. */
8894 if (outer_automatic_var_p (expr
)
8895 && current_function_decl
8896 && LAMBDA_FUNCTION_P (current_function_decl
))
8897 type
= capture_decltype (expr
);
8898 else if (error_operand_p (expr
))
8899 type
= error_mark_node
;
8900 else if (expr
== current_class_ptr
)
8901 /* If the expression is just "this", we want the
8902 cv-unqualified pointer for the "this" type. */
8903 type
= TYPE_MAIN_VARIANT (TREE_TYPE (expr
));
8906 /* Otherwise, where T is the type of e, if e is an lvalue,
8907 decltype(e) is defined as T&; if an xvalue, T&&; otherwise, T. */
8908 cp_lvalue_kind clk
= lvalue_kind (expr
);
8909 type
= unlowered_expr_type (expr
);
8910 gcc_assert (TREE_CODE (type
) != REFERENCE_TYPE
);
8912 /* For vector types, pick a non-opaque variant. */
8913 if (VECTOR_TYPE_P (type
))
8914 type
= strip_typedefs (type
);
8916 if (clk
!= clk_none
&& !(clk
& clk_class
))
8917 type
= cp_build_reference_type (type
, (clk
& clk_rvalueref
));
8924 /* Called from trait_expr_value to evaluate either __has_nothrow_assign or
8925 __has_nothrow_copy, depending on assign_p. Returns true iff all
8926 the copy {ctor,assign} fns are nothrow. */
8929 classtype_has_nothrow_assign_or_copy_p (tree type
, bool assign_p
)
8931 tree fns
= NULL_TREE
;
8933 if (assign_p
|| TYPE_HAS_COPY_CTOR (type
))
8934 fns
= get_class_binding (type
, assign_p
? assign_op_identifier
8937 bool saw_copy
= false;
8938 for (ovl_iterator
iter (fns
); iter
; ++iter
)
8942 if (copy_fn_p (fn
) > 0)
8945 maybe_instantiate_noexcept (fn
);
8946 if (!TYPE_NOTHROW_P (TREE_TYPE (fn
)))
8954 /* Actually evaluates the trait. */
8957 trait_expr_value (cp_trait_kind kind
, tree type1
, tree type2
)
8959 enum tree_code type_code1
;
8962 type_code1
= TREE_CODE (type1
);
8966 case CPTK_HAS_NOTHROW_ASSIGN
:
8967 type1
= strip_array_types (type1
);
8968 return (!CP_TYPE_CONST_P (type1
) && type_code1
!= REFERENCE_TYPE
8969 && (trait_expr_value (CPTK_HAS_TRIVIAL_ASSIGN
, type1
, type2
)
8970 || (CLASS_TYPE_P (type1
)
8971 && classtype_has_nothrow_assign_or_copy_p (type1
,
8974 case CPTK_HAS_TRIVIAL_ASSIGN
:
8975 /* ??? The standard seems to be missing the "or array of such a class
8976 type" wording for this trait. */
8977 type1
= strip_array_types (type1
);
8978 return (!CP_TYPE_CONST_P (type1
) && type_code1
!= REFERENCE_TYPE
8979 && (trivial_type_p (type1
)
8980 || (CLASS_TYPE_P (type1
)
8981 && TYPE_HAS_TRIVIAL_COPY_ASSIGN (type1
))));
8983 case CPTK_HAS_NOTHROW_CONSTRUCTOR
:
8984 type1
= strip_array_types (type1
);
8985 return (trait_expr_value (CPTK_HAS_TRIVIAL_CONSTRUCTOR
, type1
, type2
)
8986 || (CLASS_TYPE_P (type1
)
8987 && (t
= locate_ctor (type1
))
8988 && (maybe_instantiate_noexcept (t
),
8989 TYPE_NOTHROW_P (TREE_TYPE (t
)))));
8991 case CPTK_HAS_TRIVIAL_CONSTRUCTOR
:
8992 type1
= strip_array_types (type1
);
8993 return (trivial_type_p (type1
)
8994 || (CLASS_TYPE_P (type1
) && TYPE_HAS_TRIVIAL_DFLT (type1
)));
8996 case CPTK_HAS_NOTHROW_COPY
:
8997 type1
= strip_array_types (type1
);
8998 return (trait_expr_value (CPTK_HAS_TRIVIAL_COPY
, type1
, type2
)
8999 || (CLASS_TYPE_P (type1
)
9000 && classtype_has_nothrow_assign_or_copy_p (type1
, false)));
9002 case CPTK_HAS_TRIVIAL_COPY
:
9003 /* ??? The standard seems to be missing the "or array of such a class
9004 type" wording for this trait. */
9005 type1
= strip_array_types (type1
);
9006 return (trivial_type_p (type1
) || type_code1
== REFERENCE_TYPE
9007 || (CLASS_TYPE_P (type1
) && TYPE_HAS_TRIVIAL_COPY_CTOR (type1
)));
9009 case CPTK_HAS_TRIVIAL_DESTRUCTOR
:
9010 type1
= strip_array_types (type1
);
9011 return (trivial_type_p (type1
) || type_code1
== REFERENCE_TYPE
9012 || (CLASS_TYPE_P (type1
)
9013 && TYPE_HAS_TRIVIAL_DESTRUCTOR (type1
)));
9015 case CPTK_HAS_VIRTUAL_DESTRUCTOR
:
9016 return type_has_virtual_destructor (type1
);
9018 case CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS
:
9019 return type_has_unique_obj_representations (type1
);
9021 case CPTK_IS_ABSTRACT
:
9022 return ABSTRACT_CLASS_TYPE_P (type1
);
9024 case CPTK_IS_AGGREGATE
:
9025 return CP_AGGREGATE_TYPE_P (type1
);
9027 case CPTK_IS_BASE_OF
:
9028 return (NON_UNION_CLASS_TYPE_P (type1
) && NON_UNION_CLASS_TYPE_P (type2
)
9029 && (same_type_ignoring_top_level_qualifiers_p (type1
, type2
)
9030 || DERIVED_FROM_P (type1
, type2
)));
9033 return NON_UNION_CLASS_TYPE_P (type1
);
9036 return NON_UNION_CLASS_TYPE_P (type1
) && CLASSTYPE_EMPTY_P (type1
);
9039 return type_code1
== ENUMERAL_TYPE
;
9042 return CLASS_TYPE_P (type1
) && CLASSTYPE_FINAL (type1
);
9044 case CPTK_IS_LITERAL_TYPE
:
9045 return literal_type_p (type1
);
9048 return pod_type_p (type1
);
9050 case CPTK_IS_POLYMORPHIC
:
9051 return CLASS_TYPE_P (type1
) && TYPE_POLYMORPHIC_P (type1
);
9053 case CPTK_IS_SAME_AS
:
9054 return same_type_p (type1
, type2
);
9056 case CPTK_IS_STD_LAYOUT
:
9057 return std_layout_type_p (type1
);
9059 case CPTK_IS_TRIVIAL
:
9060 return trivial_type_p (type1
);
9062 case CPTK_IS_TRIVIALLY_ASSIGNABLE
:
9063 return is_trivially_xible (MODIFY_EXPR
, type1
, type2
);
9065 case CPTK_IS_TRIVIALLY_CONSTRUCTIBLE
:
9066 return is_trivially_xible (INIT_EXPR
, type1
, type2
);
9068 case CPTK_IS_TRIVIALLY_COPYABLE
:
9069 return trivially_copyable_p (type1
);
9072 return type_code1
== UNION_TYPE
;
9074 case CPTK_IS_ASSIGNABLE
:
9075 return is_xible (MODIFY_EXPR
, type1
, type2
);
9077 case CPTK_IS_CONSTRUCTIBLE
:
9078 return is_xible (INIT_EXPR
, type1
, type2
);
9086 /* If TYPE is an array of unknown bound, or (possibly cv-qualified)
9087 void, or a complete type, returns true, otherwise false. */
9090 check_trait_type (tree type
)
9092 if (type
== NULL_TREE
)
9095 if (TREE_CODE (type
) == TREE_LIST
)
9096 return (check_trait_type (TREE_VALUE (type
))
9097 && check_trait_type (TREE_CHAIN (type
)));
9099 if (TREE_CODE (type
) == ARRAY_TYPE
&& !TYPE_DOMAIN (type
)
9100 && COMPLETE_TYPE_P (TREE_TYPE (type
)))
9103 if (VOID_TYPE_P (type
))
9106 return !!complete_type_or_else (strip_array_types (type
), NULL_TREE
);
9109 /* Process a trait expression. */
9112 finish_trait_expr (cp_trait_kind kind
, tree type1
, tree type2
)
9114 if (type1
== error_mark_node
9115 || type2
== error_mark_node
)
9116 return error_mark_node
;
9118 if (processing_template_decl
)
9120 tree trait_expr
= make_node (TRAIT_EXPR
);
9121 TREE_TYPE (trait_expr
) = boolean_type_node
;
9122 TRAIT_EXPR_TYPE1 (trait_expr
) = type1
;
9123 TRAIT_EXPR_TYPE2 (trait_expr
) = type2
;
9124 TRAIT_EXPR_KIND (trait_expr
) = kind
;
9130 case CPTK_HAS_NOTHROW_ASSIGN
:
9131 case CPTK_HAS_TRIVIAL_ASSIGN
:
9132 case CPTK_HAS_NOTHROW_CONSTRUCTOR
:
9133 case CPTK_HAS_TRIVIAL_CONSTRUCTOR
:
9134 case CPTK_HAS_NOTHROW_COPY
:
9135 case CPTK_HAS_TRIVIAL_COPY
:
9136 case CPTK_HAS_TRIVIAL_DESTRUCTOR
:
9137 case CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS
:
9138 case CPTK_HAS_VIRTUAL_DESTRUCTOR
:
9139 case CPTK_IS_ABSTRACT
:
9140 case CPTK_IS_AGGREGATE
:
9143 case CPTK_IS_LITERAL_TYPE
:
9145 case CPTK_IS_POLYMORPHIC
:
9146 case CPTK_IS_STD_LAYOUT
:
9147 case CPTK_IS_TRIVIAL
:
9148 case CPTK_IS_TRIVIALLY_COPYABLE
:
9149 if (!check_trait_type (type1
))
9150 return error_mark_node
;
9153 case CPTK_IS_ASSIGNABLE
:
9154 case CPTK_IS_CONSTRUCTIBLE
:
9157 case CPTK_IS_TRIVIALLY_ASSIGNABLE
:
9158 case CPTK_IS_TRIVIALLY_CONSTRUCTIBLE
:
9159 if (!check_trait_type (type1
)
9160 || !check_trait_type (type2
))
9161 return error_mark_node
;
9164 case CPTK_IS_BASE_OF
:
9165 if (NON_UNION_CLASS_TYPE_P (type1
) && NON_UNION_CLASS_TYPE_P (type2
)
9166 && !same_type_ignoring_top_level_qualifiers_p (type1
, type2
)
9167 && !complete_type_or_else (type2
, NULL_TREE
))
9168 /* We already issued an error. */
9169 return error_mark_node
;
9175 case CPTK_IS_SAME_AS
:
9182 return (trait_expr_value (kind
, type1
, type2
)
9183 ? boolean_true_node
: boolean_false_node
);
9186 /* Do-nothing variants of functions to handle pragma FLOAT_CONST_DECIMAL64,
9187 which is ignored for C++. */
9190 set_float_const_decimal64 (void)
9195 clear_float_const_decimal64 (void)
9200 float_const_decimal64_p (void)
9206 /* Return true if T designates the implied `this' parameter. */
9209 is_this_parameter (tree t
)
9211 if (!DECL_P (t
) || DECL_NAME (t
) != this_identifier
)
9213 gcc_assert (TREE_CODE (t
) == PARM_DECL
|| is_capture_proxy (t
)
9214 || (cp_binding_oracle
&& TREE_CODE (t
) == VAR_DECL
));
9218 /* Insert the deduced return type for an auto function. */
9221 apply_deduced_return_type (tree fco
, tree return_type
)
9225 if (return_type
== error_mark_node
)
9228 if (DECL_CONV_FN_P (fco
))
9229 DECL_NAME (fco
) = make_conv_op_name (return_type
);
9231 TREE_TYPE (fco
) = change_return_type (return_type
, TREE_TYPE (fco
));
9233 result
= DECL_RESULT (fco
);
9234 if (result
== NULL_TREE
)
9236 if (TREE_TYPE (result
) == return_type
)
9239 if (!processing_template_decl
&& !VOID_TYPE_P (return_type
)
9240 && !complete_type_or_else (return_type
, NULL_TREE
))
9243 /* We already have a DECL_RESULT from start_preparsed_function.
9244 Now we need to redo the work it and allocate_struct_function
9245 did to reflect the new type. */
9246 gcc_assert (current_function_decl
== fco
);
9247 result
= build_decl (input_location
, RESULT_DECL
, NULL_TREE
,
9248 TYPE_MAIN_VARIANT (return_type
));
9249 DECL_ARTIFICIAL (result
) = 1;
9250 DECL_IGNORED_P (result
) = 1;
9251 cp_apply_type_quals_to_decl (cp_type_quals (return_type
),
9254 DECL_RESULT (fco
) = result
;
9256 if (!processing_template_decl
)
9258 bool aggr
= aggregate_value_p (result
, fco
);
9259 #ifdef PCC_STATIC_STRUCT_RETURN
9260 cfun
->returns_pcc_struct
= aggr
;
9262 cfun
->returns_struct
= aggr
;
9267 /* DECL is a local variable or parameter from the surrounding scope of a
9268 lambda-expression. Returns the decltype for a use of the capture field
9269 for DECL even if it hasn't been captured yet. */
9272 capture_decltype (tree decl
)
9274 tree lam
= CLASSTYPE_LAMBDA_EXPR (DECL_CONTEXT (current_function_decl
));
9275 /* FIXME do lookup instead of list walk? */
9276 tree cap
= value_member (decl
, LAMBDA_EXPR_CAPTURE_LIST (lam
));
9280 type
= TREE_TYPE (TREE_PURPOSE (cap
));
9282 switch (LAMBDA_EXPR_DEFAULT_CAPTURE_MODE (lam
))
9285 error ("%qD is not captured", decl
);
9286 return error_mark_node
;
9289 type
= TREE_TYPE (decl
);
9290 if (TREE_CODE (type
) == REFERENCE_TYPE
9291 && TREE_CODE (TREE_TYPE (type
)) != FUNCTION_TYPE
)
9292 type
= TREE_TYPE (type
);
9295 case CPLD_REFERENCE
:
9296 type
= TREE_TYPE (decl
);
9297 if (TREE_CODE (type
) != REFERENCE_TYPE
)
9298 type
= build_reference_type (TREE_TYPE (decl
));
9305 if (TREE_CODE (type
) != REFERENCE_TYPE
)
9307 if (!LAMBDA_EXPR_MUTABLE_P (lam
))
9308 type
= cp_build_qualified_type (type
, (cp_type_quals (type
)
9310 type
= build_reference_type (type
);
9315 /* Build a unary fold expression of EXPR over OP. If IS_RIGHT is true,
9316 this is a right unary fold. Otherwise it is a left unary fold. */
9319 finish_unary_fold_expr (tree expr
, int op
, tree_code dir
)
9321 // Build a pack expansion (assuming expr has pack type).
9322 if (!uses_parameter_packs (expr
))
9324 error_at (location_of (expr
), "operand of fold expression has no "
9325 "unexpanded parameter packs");
9326 return error_mark_node
;
9328 tree pack
= make_pack_expansion (expr
);
9330 // Build the fold expression.
9331 tree code
= build_int_cstu (integer_type_node
, abs (op
));
9332 tree fold
= build_min_nt_loc (UNKNOWN_LOCATION
, dir
, code
, pack
);
9333 FOLD_EXPR_MODIFY_P (fold
) = (op
< 0);
9338 finish_left_unary_fold_expr (tree expr
, int op
)
9340 return finish_unary_fold_expr (expr
, op
, UNARY_LEFT_FOLD_EXPR
);
9344 finish_right_unary_fold_expr (tree expr
, int op
)
9346 return finish_unary_fold_expr (expr
, op
, UNARY_RIGHT_FOLD_EXPR
);
9349 /* Build a binary fold expression over EXPR1 and EXPR2. The
9350 associativity of the fold is determined by EXPR1 and EXPR2 (whichever
9351 has an unexpanded parameter pack). */
9354 finish_binary_fold_expr (tree pack
, tree init
, int op
, tree_code dir
)
9356 pack
= make_pack_expansion (pack
);
9357 tree code
= build_int_cstu (integer_type_node
, abs (op
));
9358 tree fold
= build_min_nt_loc (UNKNOWN_LOCATION
, dir
, code
, pack
, init
);
9359 FOLD_EXPR_MODIFY_P (fold
) = (op
< 0);
9364 finish_binary_fold_expr (tree expr1
, tree expr2
, int op
)
9366 // Determine which expr has an unexpanded parameter pack and
9367 // set the pack and initial term.
9368 bool pack1
= uses_parameter_packs (expr1
);
9369 bool pack2
= uses_parameter_packs (expr2
);
9370 if (pack1
&& !pack2
)
9371 return finish_binary_fold_expr (expr1
, expr2
, op
, BINARY_RIGHT_FOLD_EXPR
);
9372 else if (pack2
&& !pack1
)
9373 return finish_binary_fold_expr (expr2
, expr1
, op
, BINARY_LEFT_FOLD_EXPR
);
9377 error ("both arguments in binary fold have unexpanded parameter packs");
9379 error ("no unexpanded parameter packs in binary fold");
9381 return error_mark_node
;
9384 /* Finish __builtin_launder (arg). */
9387 finish_builtin_launder (location_t loc
, tree arg
, tsubst_flags_t complain
)
9389 tree orig_arg
= arg
;
9390 if (!type_dependent_expression_p (arg
))
9391 arg
= decay_conversion (arg
, complain
);
9392 if (error_operand_p (arg
))
9393 return error_mark_node
;
9394 if (!type_dependent_expression_p (arg
)
9395 && TREE_CODE (TREE_TYPE (arg
)) != POINTER_TYPE
)
9397 error_at (loc
, "non-pointer argument to %<__builtin_launder%>");
9398 return error_mark_node
;
9400 if (processing_template_decl
)
9402 return build_call_expr_internal_loc (loc
, IFN_LAUNDER
,
9403 TREE_TYPE (arg
), 1, arg
);
9406 #include "gt-cp-semantics.h"