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* [Bug c++/99030] New: [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776
@ 2021-02-09 17:36 gscfq@t-online.de
2021-02-09 17:51 ` [Bug c++/99030] " mpolacek at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gscfq@t-online.de @ 2021-02-09 17:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99030
Bug ID: 99030
Summary: [11 Regression] ICE in finish_expr_stmt, at
cp/semantics.c:776
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Changed somewhere between 20200823 and 20201004 :
$ cat z1.cc
void foo ()
{
extern int a;
[] (auto b) { a; } (1);
}
$ g++-11-20200823 -c z1.cc
$
$ g++-11-20210207 -c z1.cc
z1.cc: In instantiation of 'foo()::<lambda(auto:1)> [with auto:1 = int]':
z1.cc:4:24: required from here
z1.cc:4:17: internal compiler error: in finish_expr_stmt, at cp/semantics.c:776
4 | [] (auto b) { a; } (1);
| ^
0x7e11cc finish_expr_stmt(tree_node*)
../../gcc/cp/semantics.c:776
0x7c72b9 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/cp/pt.c:18158
0x7c5c17 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/cp/pt.c:18475
0x7c5c17 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/cp/pt.c:18475
0x7ba4f3 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/cp/pt.c:25835
0x7ba4f3 instantiate_body
../../gcc/cp/pt.c:25835
0x7bb580 instantiate_decl(tree_node*, bool, bool)
../../gcc/cp/pt.c:26124
0x6ea4d3 maybe_instantiate_decl(tree_node*)
../../gcc/cp/decl2.c:5463
0x6ead54 mark_used(tree_node*, int)
../../gcc/cp/decl2.c:5691
0x674792 build_over_call
../../gcc/cp/call.c:9357
0x678b73 build_op_call_1
../../gcc/cp/call.c:4957
0x678b73 build_op_call(tree_node*, vec<tree_node*, va_gc, vl_embed>**, int)
../../gcc/cp/call.c:4986
0x7e4c72 finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
../../gcc/cp/semantics.c:2762
0x783995 cp_parser_postfix_expression
../../gcc/cp/parser.c:7715
0x793d35 cp_parser_unary_expression
../../gcc/cp/parser.c:8818
0x76d96f cp_parser_cast_expression
../../gcc/cp/parser.c:9722
0x76e1a2 cp_parser_binary_expression
../../gcc/cp/parser.c:9824
0x76e900 cp_parser_assignment_expression
../../gcc/cp/parser.c:10128
0x76f77c cp_parser_expression
../../gcc/cp/parser.c:10298
0x772317 cp_parser_expression_statement
../../gcc/cp/parser.c:11965
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/99030] [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776
2021-02-09 17:36 [Bug c++/99030] New: [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776 gscfq@t-online.de
@ 2021-02-09 17:51 ` mpolacek at gcc dot gnu.org
2021-02-09 18:25 ` mpolacek at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-02-09 17:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99030
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |11.0
Last reconfirmed| |2021-02-09
Ever confirmed|0 |1
CC| |mpolacek at gcc dot gnu.org,
| |nathan at gcc dot gnu.org
Status|UNCONFIRMED |NEW
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r11-3100.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/99030] [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776
2021-02-09 17:36 [Bug c++/99030] New: [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776 gscfq@t-online.de
2021-02-09 17:51 ` [Bug c++/99030] " mpolacek at gcc dot gnu.org
@ 2021-02-09 18:25 ` mpolacek at gcc dot gnu.org
2021-02-10 7:20 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-02-09 18:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99030
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/99030] [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776
2021-02-09 17:36 [Bug c++/99030] New: [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776 gscfq@t-online.de
2021-02-09 17:51 ` [Bug c++/99030] " mpolacek at gcc dot gnu.org
2021-02-09 18:25 ` mpolacek at gcc dot gnu.org
@ 2021-02-10 7:20 ` rguenth at gcc dot gnu.org
2021-02-10 13:34 ` cvs-commit at gcc dot gnu.org
2021-02-10 13:35 ` nathan at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-02-10 7:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99030
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/99030] [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776
2021-02-09 17:36 [Bug c++/99030] New: [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776 gscfq@t-online.de
` (2 preceding siblings ...)
2021-02-10 7:20 ` rguenth at gcc dot gnu.org
@ 2021-02-10 13:34 ` cvs-commit at gcc dot gnu.org
2021-02-10 13:35 ` nathan at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-02-10 13:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99030
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Nathan Sidwell <nathan@gcc.gnu.org>:
https://gcc.gnu.org/g:f8fac476b5ce4b9a37ea2b257d9da810f8c507be
commit r11-7170-gf8fac476b5ce4b9a37ea2b257d9da810f8c507be
Author: Nathan Sidwell <nathan@acm.org>
Date: Wed Feb 10 05:29:39 2021 -0800
c++: generic lambdas and local-externs from outer scopes [PR 99030]
Lambdas can refer to local externs from their enclosing scope. When
the lambda's generic but the containing function is not a temploid,
we'll never have tsubsted the declaring decl so won't have a local
specialization. But in that case we can just use the decl we
tsubsting directly -- it's not dependent.
PR c++/99030
gcc/cp
* pt.c (tsubst_copy) [VAR_DECL]: For a DECL_LOCAL_DECL_P T is the
answer if there's no local specialization.
gcc/testsuite/
* g++.dg/lookup/pr99030.C: New.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/99030] [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776
2021-02-09 17:36 [Bug c++/99030] New: [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776 gscfq@t-online.de
` (3 preceding siblings ...)
2021-02-10 13:34 ` cvs-commit at gcc dot gnu.org
@ 2021-02-10 13:35 ` nathan at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: nathan at gcc dot gnu.org @ 2021-02-10 13:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99030
Nathan Sidwell <nathan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #3 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
f8fac476b5c 2021-02-10 | c++: generic lambdas and local-externs from outer
scopes [PR 99030]
^ permalink raw reply [flat|nested] 6+ messages in thread
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2021-02-09 17:36 [Bug c++/99030] New: [11 Regression] ICE in finish_expr_stmt, at cp/semantics.c:776 gscfq@t-online.de
2021-02-09 17:51 ` [Bug c++/99030] " mpolacek at gcc dot gnu.org
2021-02-09 18:25 ` mpolacek at gcc dot gnu.org
2021-02-10 7:20 ` rguenth at gcc dot gnu.org
2021-02-10 13:34 ` cvs-commit at gcc dot gnu.org
2021-02-10 13:35 ` nathan at gcc dot gnu.org
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