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* [Bug c++/100055] New: ICE on invalid requires expression
@ 2021-04-12 23:10 ldalessandro at gmail dot com
2021-04-22 16:35 ` [Bug c++/100055] " mpolacek at gcc dot gnu.org
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: ldalessandro at gmail dot com @ 2021-04-12 23:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
Bug ID: 100055
Summary: ICE on invalid requires expression
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ldalessandro at gmail dot com
Target Milestone: ---
The following invalid code triggers a segfault.
```
void foo(auto&& arg) requires({});
<source>:1:30: error: statement-expressions are not allowed outside functions
nor in template-argument lists
1 | void foo(auto&& arg) requires({});
| ^
<source>:1:33: internal compiler error: Segmentation fault
1 | void foo(auto&& arg) requires({});
| ^
0x1d01009 internal_error(char const*, ...)
???:0
0x7a1b17 grokdeclarator(cp_declarator const*, cp_decl_specifier_seq*,
decl_context, int, tree_node**)
???:0
0x7a7a78 start_decl(cp_declarator const*, cp_decl_specifier_seq*, int,
tree_node*, tree_node*, tree_node**)
???:0
0x8e230d c_parse_file()
???:0
0xa615b2 c_common_parse_file()
???:0
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
ASM generation compiler returned: 1
```
live example: https://godbolt.org/z/qjWWWchjo
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
@ 2021-04-22 16:35 ` mpolacek at gcc dot gnu.org
2021-04-22 16:41 ` [Bug c++/100055] [10/11/12 Regression] " mpolacek at gcc dot gnu.org
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-04-22 16:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
CC| |mpolacek at gcc dot gnu.org
Last reconfirmed| |2021-04-22
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed, thanks for the report.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
2021-04-22 16:35 ` [Bug c++/100055] " mpolacek at gcc dot gnu.org
@ 2021-04-22 16:41 ` mpolacek at gcc dot gnu.org
2021-04-22 17:32 ` hewillk at gmail dot com
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-04-22 16:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Summary|ICE on invalid requires |[10/11/12 Regression] ICE
|expression |on invalid requires
| |expression
Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org
Priority|P3 |P4
Target Milestone|--- |10.4
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This is probably sufficient:
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -9695,7 +9695,7 @@ grokfndecl (tree ctype,
bool memtmpl = (!block_local
&& (processing_template_decl
> template_class_depth (ctx)));
- if (memtmpl)
+ if (memtmpl && current_template_parms)
tmpl_reqs = TEMPLATE_PARMS_CONSTRAINTS (current_template_parms);
tree ci = build_constraints (tmpl_reqs, decl_reqs);
if (concept_p && ci)
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
2021-04-22 16:35 ` [Bug c++/100055] " mpolacek at gcc dot gnu.org
2021-04-22 16:41 ` [Bug c++/100055] [10/11/12 Regression] " mpolacek at gcc dot gnu.org
@ 2021-04-22 17:32 ` hewillk at gmail dot com
2021-04-26 14:51 ` mpolacek at gcc dot gnu.org
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: hewillk at gmail dot com @ 2021-04-22 17:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
康桓瑋 <hewillk at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hewillk at gmail dot com
--- Comment #3 from 康桓瑋 <hewillk at gmail dot com> ---
I think this is a dup of PR 99465, which has several ICE forms.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
` (2 preceding siblings ...)
2021-04-22 17:32 ` hewillk at gmail dot com
@ 2021-04-26 14:51 ` mpolacek at gcc dot gnu.org
2021-05-03 16:48 ` cvs-commit at gcc dot gnu.org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-04-26 14:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This fixes https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99465#c1 but not
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99465#c0.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
` (3 preceding siblings ...)
2021-04-26 14:51 ` mpolacek at gcc dot gnu.org
@ 2021-05-03 16:48 ` cvs-commit at gcc dot gnu.org
2021-05-03 16:49 ` mpolacek at gcc dot gnu.org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-05-03 16:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:
https://gcc.gnu.org/g:c9b6890d0b6aa030b307fdb620f8c53ed59ca3b5
commit r12-389-gc9b6890d0b6aa030b307fdb620f8c53ed59ca3b5
Author: Marek Polacek <polacek@redhat.com>
Date: Thu Apr 22 17:32:01 2021 -0400
c++: Fix ICE with invalid requires-expression [PR100055]
This fixes a crash on invalid requires-expression: in this test,
current_template_parms is null so accessing TEMPLATE_PARMS_CONSTRAINTS
is going to fail. So don't crash, but make sure we've complained
already.
gcc/cp/ChangeLog:
PR c++/100055
* decl.c (grokfndecl): Check current_template_parms.
gcc/testsuite/ChangeLog:
PR c++/100055
* g++.dg/concepts/diagnostic18.C: New test.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
` (4 preceding siblings ...)
2021-05-03 16:48 ` cvs-commit at gcc dot gnu.org
@ 2021-05-03 16:49 ` mpolacek at gcc dot gnu.org
2021-11-12 21:23 ` pinskia at gcc dot gnu.org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-05-03 16:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed for GCC 12.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
` (5 preceding siblings ...)
2021-05-03 16:49 ` mpolacek at gcc dot gnu.org
@ 2021-11-12 21:23 ` pinskia at gcc dot gnu.org
2022-01-04 2:23 ` pinskia at gcc dot gnu.org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-11-12 21:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |lts-rudolph at gmx dot de
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 96111 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
` (6 preceding siblings ...)
2021-11-12 21:23 ` pinskia at gcc dot gnu.org
@ 2022-01-04 2:23 ` pinskia at gcc dot gnu.org
2022-01-04 2:24 ` pinskia at gcc dot gnu.org
2022-01-04 2:26 ` pinskia at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-01-04 2:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|10.4 |12.0
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
` (7 preceding siblings ...)
2022-01-04 2:23 ` pinskia at gcc dot gnu.org
@ 2022-01-04 2:24 ` pinskia at gcc dot gnu.org
2022-01-04 2:26 ` pinskia at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-01-04 2:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nico at josuttis dot de
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 98635 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression
2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
` (8 preceding siblings ...)
2022-01-04 2:24 ` pinskia at gcc dot gnu.org
@ 2022-01-04 2:26 ` pinskia at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-01-04 2:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 99465 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2022-01-04 2:26 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
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2021-04-12 23:10 [Bug c++/100055] New: ICE on invalid requires expression ldalessandro at gmail dot com
2021-04-22 16:35 ` [Bug c++/100055] " mpolacek at gcc dot gnu.org
2021-04-22 16:41 ` [Bug c++/100055] [10/11/12 Regression] " mpolacek at gcc dot gnu.org
2021-04-22 17:32 ` hewillk at gmail dot com
2021-04-26 14:51 ` mpolacek at gcc dot gnu.org
2021-05-03 16:48 ` cvs-commit at gcc dot gnu.org
2021-05-03 16:49 ` mpolacek at gcc dot gnu.org
2021-11-12 21:23 ` pinskia at gcc dot gnu.org
2022-01-04 2:23 ` pinskia at gcc dot gnu.org
2022-01-04 2:24 ` pinskia at gcc dot gnu.org
2022-01-04 2:26 ` pinskia at gcc dot gnu.org
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