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* [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields
@ 2021-08-03 20:18 xtkoba at gmail dot com
2021-08-03 20:40 ` [Bug c++/101767] [11/12 Regression] " pinskia at gcc dot gnu.org
` (12 more replies)
0 siblings, 13 replies; 14+ messages in thread
From: xtkoba at gmail dot com @ 2021-08-03 20:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Bug ID: 101767
Summary: Aggregate initialization fails for struct that has
both unnamed struct and union fields
Product: gcc
Version: 11.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: xtkoba at gmail dot com
Target Milestone: ---
Created attachment 51254
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51254&action=edit
Repro
$ cat unnamed_fields.cc
typedef struct {
struct {
int x;
};
union {
int y;
float z;
};
} S;
void foo(void)
{
[[maybe_unused]] S a = {
.x = 1,
.y = 0
};
}
$ g++-11.2.0 unnamed_fields.cc -c
unnamed_fields.cc: In function 'void foo()':
unnamed_fields.cc:17:3: error: 'S::<unnamed struct>' has no non-static data
member named 'y'
17 | };
| ^
$ g++-11.2.0 -v
Using built-in specs.
COLLECT_GCC=g++-11.2.0
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/11.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-11.2.0/work/gcc-11.2.0/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/11.2.0
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.2.0
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.2.0/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.2.0/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/include/g++-v11
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/11.2.0/python
--enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--disable-libunwind-exceptions --enable-checking=release
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 11.2.0 p1'
--disable-esp --enable-libstdcxx-time --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-multilib
--with-multilib-list=m32,m64 --disable-fixed-point --enable-targets=all
--enable-libgomp --disable-libssp --disable-libada --disable-systemtap
--disable-valgrind-annotations --disable-vtable-verify --disable-libvtv
--without-zstd --enable-lto --without-isl --enable-default-pie
--enable-default-ssp
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.2.0 (Gentoo 11.2.0 p1)
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [11/12 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
@ 2021-08-03 20:40 ` pinskia at gcc dot gnu.org
2021-08-03 20:50 ` [Bug c++/101767] [10/11/12 " pinskia at gcc dot gnu.org
` (11 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-03 20:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |11.3
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [10/11/12 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
2021-08-03 20:40 ` [Bug c++/101767] [11/12 Regression] " pinskia at gcc dot gnu.org
@ 2021-08-03 20:50 ` pinskia at gcc dot gnu.org
2021-08-04 5:59 ` rguenth at gcc dot gnu.org
` (10 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-03 20:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[11/12 Regression] |[10/11/12 Regression]
|Aggregate initialization |Aggregate initialization
|fails for struct that has |fails for struct that has
|both unnamed struct and |both unnamed struct and
|union fields |union fields
Target Milestone|11.3 |10.4
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=100489
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Known to work| |10.3.0
Last reconfirmed| |2021-08-03
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So this is most likely caused by the patch which fixes PR 100489 so this is a
regression in 10.4.0 also.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [10/11/12 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
2021-08-03 20:40 ` [Bug c++/101767] [11/12 Regression] " pinskia at gcc dot gnu.org
2021-08-03 20:50 ` [Bug c++/101767] [10/11/12 " pinskia at gcc dot gnu.org
@ 2021-08-04 5:59 ` rguenth at gcc dot gnu.org
2021-11-16 21:56 ` pinskia at gcc dot gnu.org
` (9 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-08-04 5:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [10/11/12 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (2 preceding siblings ...)
2021-08-04 5:59 ` rguenth at gcc dot gnu.org
@ 2021-11-16 21:56 ` pinskia at gcc dot gnu.org
2022-01-20 14:52 ` ppalka at gcc dot gnu.org
` (8 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-11-16 21:56 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |roland at gnu dot org
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 103290 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [10/11/12 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (3 preceding siblings ...)
2021-11-16 21:56 ` pinskia at gcc dot gnu.org
@ 2022-01-20 14:52 ` ppalka at gcc dot gnu.org
2022-02-09 8:23 ` antmak.pub at gmail dot com
` (7 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: ppalka at gcc dot gnu.org @ 2022-01-20 14:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ppalka at gcc dot gnu.org
--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> So this is most likely caused by the patch which fixes PR 100489 so this is
> a regression in 10.4.0 also.
Yep, started with r12-954.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [10/11/12 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (4 preceding siblings ...)
2022-01-20 14:52 ` ppalka at gcc dot gnu.org
@ 2022-02-09 8:23 ` antmak.pub at gmail dot com
2022-03-18 18:12 ` jason at gcc dot gnu.org
` (6 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: antmak.pub at gmail dot com @ 2022-02-09 8:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
--- Comment #4 from Anton Maklakov <antmak.pub at gmail dot com> ---
I've stumbled this bug as well
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [10/11/12 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (5 preceding siblings ...)
2022-02-09 8:23 ` antmak.pub at gmail dot com
@ 2022-03-18 18:12 ` jason at gcc dot gnu.org
2022-03-21 20:47 ` cvs-commit at gcc dot gnu.org
` (5 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: jason at gcc dot gnu.org @ 2022-03-18 18:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
CC| |jason at gcc dot gnu.org
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [10/11/12 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (6 preceding siblings ...)
2022-03-18 18:12 ` jason at gcc dot gnu.org
@ 2022-03-21 20:47 ` cvs-commit at gcc dot gnu.org
2022-03-21 20:58 ` [Bug c++/101767] [11 " jason at gcc dot gnu.org
` (4 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-03-21 20:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:
https://gcc.gnu.org/g:e3e191b4104c7d6a177f66dbb77cabf05ab63781
commit r12-7740-ge3e191b4104c7d6a177f66dbb77cabf05ab63781
Author: Jason Merrill <jason@redhat.com>
Date: Fri Mar 18 14:36:19 2022 -0400
c++: designator and anon struct [PR101767]
We found .x in the anonymous struct, but then didn't find .y there; we
should decide that means we're done with the struct rather than that the
code is wrong.
PR c++/101767
gcc/cp/ChangeLog:
* decl.cc (reshape_init_class): Back out of anon struct
if a designator doesn't match.
gcc/testsuite/ChangeLog:
* g++.dg/ext/anon-struct10.C: New test.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [11 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (7 preceding siblings ...)
2022-03-21 20:47 ` cvs-commit at gcc dot gnu.org
@ 2022-03-21 20:58 ` jason at gcc dot gnu.org
2022-03-22 5:18 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: jason at gcc dot gnu.org @ 2022-03-21 20:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[10/11/12 Regression] |[11 Regression] Aggregate
|Aggregate initialization |initialization fails for
|fails for struct that has |struct that has both
|both unnamed struct and |unnamed struct and union
|union fields |fields
Target Milestone|10.4 |11.3
Priority|P2 |P1
Known to work| |12.0
--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> ---
The 10 branch patch was just removing an assert, so it didn't regress there.
Fixed on trunk so far. Marking P1 for 11 branch.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [11 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (8 preceding siblings ...)
2022-03-21 20:58 ` [Bug c++/101767] [11 " jason at gcc dot gnu.org
@ 2022-03-22 5:18 ` cvs-commit at gcc dot gnu.org
2022-03-26 23:29 ` jason at gcc dot gnu.org
` (2 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-03-22 5:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:
https://gcc.gnu.org/g:b94c95fc1199bfa2c7ab577921b07ef545976cac
commit r11-9677-gb94c95fc1199bfa2c7ab577921b07ef545976cac
Author: Jason Merrill <jason@redhat.com>
Date: Fri Mar 18 14:36:19 2022 -0400
c++: designator and anon struct [PR101767]
We found .x in the anonymous struct, but then didn't find .y there; we
should decide that means we're done with the struct rather than that the
code is wrong.
PR c++/101767
gcc/cp/ChangeLog:
* decl.c (reshape_init_class): Back out of anon struct
if a designator doesn't match.
gcc/testsuite/ChangeLog:
* g++.dg/ext/anon-struct10.C: New test.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [11 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (9 preceding siblings ...)
2022-03-22 5:18 ` cvs-commit at gcc dot gnu.org
@ 2022-03-26 23:29 ` jason at gcc dot gnu.org
2022-05-12 21:14 ` cvs-commit at gcc dot gnu.org
2022-05-12 22:24 ` cvs-commit at gcc dot gnu.org
12 siblings, 0 replies; 14+ messages in thread
From: jason at gcc dot gnu.org @ 2022-03-26 23:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 11.3
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [11 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (10 preceding siblings ...)
2022-03-26 23:29 ` jason at gcc dot gnu.org
@ 2022-05-12 21:14 ` cvs-commit at gcc dot gnu.org
2022-05-12 22:24 ` cvs-commit at gcc dot gnu.org
12 siblings, 0 replies; 14+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-05-12 21:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:
https://gcc.gnu.org/g:846bff4d4659d9b2026da574194599f38a00cc79
commit r10-10718-g846bff4d4659d9b2026da574194599f38a00cc79
Author: Jason Merrill <jason@redhat.com>
Date: Fri Mar 18 14:36:19 2022 -0400
c++: designator and anon struct [PR101767]
We found .x in the anonymous struct, but then didn't find .y there; we
should decide that means we're done with the struct rather than that the
code is wrong.
PR c++/101767
gcc/cp/ChangeLog:
* decl.c (reshape_init_class): Back out of anon struct
if a designator doesn't match.
gcc/testsuite/ChangeLog:
* g++.dg/ext/anon-struct10.C: New test.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c++/101767] [11 Regression] Aggregate initialization fails for struct that has both unnamed struct and union fields
2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
` (11 preceding siblings ...)
2022-05-12 21:14 ` cvs-commit at gcc dot gnu.org
@ 2022-05-12 22:24 ` cvs-commit at gcc dot gnu.org
12 siblings, 0 replies; 14+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-05-12 22:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101767
--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:
https://gcc.gnu.org/g:0807111e6347778910c9cf63521b7c838effceb8
commit r10-10731-g0807111e6347778910c9cf63521b7c838effceb8
Author: Jason Merrill <jason@redhat.com>
Date: Thu May 12 17:38:40 2022 -0400
Revert "c++: designator and anon struct [PR101767]"
101767 wasn't broken on the 10 branch, so it doesn't need the fix, just the
test.
PR c++/101767
This reverts commit 846bff4d4659d9b2026da574194599f38a00cc79.
^ permalink raw reply [flat|nested] 14+ messages in thread
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2021-08-03 20:18 [Bug c++/101767] New: Aggregate initialization fails for struct that has both unnamed struct and union fields xtkoba at gmail dot com
2021-08-03 20:40 ` [Bug c++/101767] [11/12 Regression] " pinskia at gcc dot gnu.org
2021-08-03 20:50 ` [Bug c++/101767] [10/11/12 " pinskia at gcc dot gnu.org
2021-08-04 5:59 ` rguenth at gcc dot gnu.org
2021-11-16 21:56 ` pinskia at gcc dot gnu.org
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2022-03-18 18:12 ` jason at gcc dot gnu.org
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2022-03-21 20:58 ` [Bug c++/101767] [11 " jason at gcc dot gnu.org
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