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* [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
@ 2021-07-20 16:52 gscfq@t-online.de
2021-07-20 16:57 ` [Bug c++/101532] " mpolacek at gcc dot gnu.org
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: gscfq@t-online.de @ 2021-07-20 16:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
Bug ID: 101532
Summary: [12 Regression] ICE in finish_expr_stmt, at
cp/semantics.c:859
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Changed between 20210704 and 20210711 :
$ cat z1.cc
class A {
~A() {}
};
template <class> class B {
A f = [] {};
};
B<int> c;
$ cat z2.cc
class A {
~A() {}
};
template <class T> class B {
A f = [](T) {};
};
B<int> c;
$ g++-12-20210718 -c z1.cc
z1.cc: In function 'void __static_initialization_and_destruction_0(int, int)':
z1.cc:7:8: internal compiler error: in finish_expr_stmt, at cp/semantics.c:859
7 | B<int> c;
| ^
0x9d659c finish_expr_stmt(tree_node*)
../../gcc/cp/semantics.c:859
0x826644 one_static_initialization_or_destruction
../../gcc/cp/decl2.c:4118
0x826d56 do_static_initialization_or_destruction
../../gcc/cp/decl2.c:4216
0x82d58e c_parse_final_cleanups()
../../gcc/cp/decl2.c:5062
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
@ 2021-07-20 16:57 ` mpolacek at gcc dot gnu.org
2021-07-20 17:00 ` mpolacek at gcc dot gnu.org
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-07-20 16:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
CC| |mpolacek at gcc dot gnu.org
Target Milestone|--- |12.0
Last reconfirmed| |2021-07-20
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
2021-07-20 16:57 ` [Bug c++/101532] " mpolacek at gcc dot gnu.org
@ 2021-07-20 17:00 ` mpolacek at gcc dot gnu.org
2022-01-10 12:13 ` pinskia at gcc dot gnu.org
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-07-20 17:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ppalka at gcc dot gnu.org
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r12-2233.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
2021-07-20 16:57 ` [Bug c++/101532] " mpolacek at gcc dot gnu.org
2021-07-20 17:00 ` mpolacek at gcc dot gnu.org
@ 2022-01-10 12:13 ` pinskia at gcc dot gnu.org
2022-01-20 12:42 ` rguenth at gcc dot gnu.org
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-01-10 12:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note it is not lambda related at all, here is a (invalid) C++98 case were we
ICE too:
class A {
~A() {}
};
template <class> class B {
A f = 1;
};
B<int> c;
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
` (2 preceding siblings ...)
2022-01-10 12:13 ` pinskia at gcc dot gnu.org
@ 2022-01-20 12:42 ` rguenth at gcc dot gnu.org
2022-01-25 20:05 ` cvs-commit at gcc dot gnu.org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-01-20 12:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
` (3 preceding siblings ...)
2022-01-20 12:42 ` rguenth at gcc dot gnu.org
@ 2022-01-25 20:05 ` cvs-commit at gcc dot gnu.org
2022-01-25 20:06 ` ppalka at gcc dot gnu.org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-01-25 20:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:bc90dd0ecf02e11d47d1af7f627e2e2acaa40106
commit r12-6863-gbc90dd0ecf02e11d47d1af7f627e2e2acaa40106
Author: Patrick Palka <ppalka@redhat.com>
Date: Tue Jan 25 15:04:49 2022 -0500
c++: deleted fn and noexcept inst [PR101532, PR104225]
Here when attempting to use B's implicitly deleted default constructor,
mark_used rightfully returns false, but for the wrong reason: it
tries to instantiate the synthesized noexcept specifier which then only
silently fails because get_defaulted_eh_spec suppresses diagnostics
for deleted functions. This lack of diagnostics causes us to crash on
the first testcase below (thanks to the assert in finish_expr_stmt), and
silently accept the second testcase.
To fix this, this patch makes mark_used avoid attempting to instantiate
the noexcept specifier of a deleted function, so that we'll instead
directly reject (and diagnose) the function due to its deletedness.
PR c++/101532
PR c++/104225
gcc/cp/ChangeLog:
* decl2.cc (mark_used): Don't consider maybe_instantiate_noexcept
on a deleted function.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/nsdmi-template21.C: New test.
* g++.dg/cpp0x/nsdmi-template21a.C: New test.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
` (4 preceding siblings ...)
2022-01-25 20:05 ` cvs-commit at gcc dot gnu.org
@ 2022-01-25 20:06 ` ppalka at gcc dot gnu.org
2022-04-12 23:44 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: ppalka at gcc dot gnu.org @ 2022-01-25 20:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |ppalka at gcc dot gnu.org
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #5 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
` (5 preceding siblings ...)
2022-01-25 20:06 ` ppalka at gcc dot gnu.org
@ 2022-04-12 23:44 ` cvs-commit at gcc dot gnu.org
2022-04-12 23:47 ` ppalka at gcc dot gnu.org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-04-12 23:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Patrick Palka
<ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:1429db66619d2b801ac0b586b5eed74ab54a35b0
commit r11-9840-g1429db66619d2b801ac0b586b5eed74ab54a35b0
Author: Patrick Palka <ppalka@redhat.com>
Date: Tue Jan 25 15:04:49 2022 -0500
c++: deleted fn and noexcept inst [PR101532, PR104225]
Here when attempting to use B's implicitly deleted default constructor,
mark_used rightfully returns false, but for the wrong reason: it
tries to instantiate the synthesized noexcept specifier which then only
silently fails because get_defaulted_eh_spec suppresses diagnostics
for deleted functions. This lack of diagnostics causes us to crash on
the first testcase below (thanks to the assert in finish_expr_stmt), and
silently accept the second testcase.
To fix this, this patch makes mark_used avoid attempting to instantiate
the noexcept specifier of a deleted function, so that we'll instead
directly reject (and diagnose) the function due to its deletedness.
PR c++/101532
PR c++/104225
gcc/cp/ChangeLog:
* decl2.c (mark_used): Don't consider maybe_instantiate_noexcept
on a deleted function.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/nsdmi-template21.C: New test.
* g++.dg/cpp0x/nsdmi-template21a.C: New test.
(cherry picked from commit bc90dd0ecf02e11d47d1af7f627e2e2acaa40106)
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
` (6 preceding siblings ...)
2022-04-12 23:44 ` cvs-commit at gcc dot gnu.org
@ 2022-04-12 23:47 ` ppalka at gcc dot gnu.org
2022-05-09 23:32 ` cvs-commit at gcc dot gnu.org
2022-05-11 14:59 ` cvs-commit at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: ppalka at gcc dot gnu.org @ 2022-04-12 23:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|12.0 |11.3
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
` (7 preceding siblings ...)
2022-04-12 23:47 ` ppalka at gcc dot gnu.org
@ 2022-05-09 23:32 ` cvs-commit at gcc dot gnu.org
2022-05-11 14:59 ` cvs-commit at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-05-09 23:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Patrick Palka
<ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:ad0398474aff6bb7726e9117711b0a111a4b69e7
commit r10-10602-gad0398474aff6bb7726e9117711b0a111a4b69e7
Author: Patrick Palka <ppalka@redhat.com>
Date: Tue Jan 25 15:04:49 2022 -0500
c++: deleted fn and noexcept inst [PR101532, PR104225]
Here when attempting to use B's implicitly deleted default constructor,
mark_used rightfully returns false, but for the wrong reason: it
tries to instantiate the synthesized noexcept specifier which then only
silently fails because get_defaulted_eh_spec suppresses diagnostics
for deleted functions. This lack of diagnostics causes us to crash on
the first testcase below (thanks to the assert in finish_expr_stmt), and
silently accept the second testcase.
To fix this, this patch makes mark_used avoid attempting to instantiate
the noexcept specifier of a deleted function, so that we'll instead
directly reject (and diagnose) the function due to its deletedness.
PR c++/101532
PR c++/104225
gcc/cp/ChangeLog:
* decl2.c (mark_used): Don't consider maybe_instantiate_noexcept
on a deleted function.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/nsdmi-template21.C: New test.
* g++.dg/cpp0x/nsdmi-template21a.C: New test.
(cherry picked from commit bc90dd0ecf02e11d47d1af7f627e2e2acaa40106)
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/101532] [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859
2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
` (8 preceding siblings ...)
2022-05-09 23:32 ` cvs-commit at gcc dot gnu.org
@ 2022-05-11 14:59 ` cvs-commit at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-05-11 14:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101532
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Patrick Palka
<ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:4df77364f7fd9ce88c012843fff124346e4d3c06
commit r9-10155-g4df77364f7fd9ce88c012843fff124346e4d3c06
Author: Patrick Palka <ppalka@redhat.com>
Date: Tue Jan 25 15:04:49 2022 -0500
c++: deleted fn and noexcept inst [PR101532, PR104225]
Here when attempting to use B's implicitly deleted default constructor,
mark_used rightfully returns false, but for the wrong reason: it
tries to instantiate the synthesized noexcept specifier which then only
silently fails because get_defaulted_eh_spec suppresses diagnostics
for deleted functions. This lack of diagnostics causes us to crash on
the first testcase below (thanks to the assert in finish_expr_stmt), and
silently accept the second testcase.
To fix this, this patch makes mark_used avoid attempting to instantiate
the noexcept specifier of a deleted function, so that we'll instead
directly reject (and diagnose) the function due to its deletedness.
PR c++/101532
PR c++/104225
gcc/cp/ChangeLog:
* decl2.c (mark_used): Don't consider maybe_instantiate_noexcept
on a deleted function.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/nsdmi-template21.C: New test.
* g++.dg/cpp0x/nsdmi-template21a.C: New test.
(cherry picked from commit bc90dd0ecf02e11d47d1af7f627e2e2acaa40106)
^ permalink raw reply [flat|nested] 11+ messages in thread
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2021-07-20 16:52 [Bug c++/101532] New: [12 Regression] ICE in finish_expr_stmt, at cp/semantics.c:859 gscfq@t-online.de
2021-07-20 16:57 ` [Bug c++/101532] " mpolacek at gcc dot gnu.org
2021-07-20 17:00 ` mpolacek at gcc dot gnu.org
2022-01-10 12:13 ` pinskia at gcc dot gnu.org
2022-01-20 12:42 ` rguenth at gcc dot gnu.org
2022-01-25 20:05 ` cvs-commit at gcc dot gnu.org
2022-01-25 20:06 ` ppalka at gcc dot gnu.org
2022-04-12 23:44 ` cvs-commit at gcc dot gnu.org
2022-04-12 23:47 ` ppalka at gcc dot gnu.org
2022-05-09 23:32 ` cvs-commit at gcc dot gnu.org
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