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* [Bug c++/81836] New: ill-formed qualified name not diagnosed
@ 2017-08-15 8:47 gcc@arne-mertz.de
2020-07-08 16:02 ` [Bug c++/81836] " redi at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: gcc@arne-mertz.de @ 2017-08-15 8:47 UTC (permalink / raw)
To: gcc-bugs
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81836
Bug ID: 81836
Summary: ill-formed qualified name not diagnosed
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gcc@arne-mertz.de
Target Milestone: ---
Consider the following code:
typedef int foo;
namespace Foo {
int f();
foo g();
}
int ::Foo::f() { return 0; }
foo ::Foo::g() { return 1; }
This compiles in gcc 7.2.0 and 8.0.0 20170814, but should give an error in the
last line:
[expr.prim.id.qual] states, that `foo :: Foo` is a qualified ID. (`foo` is a
type-name). [basic.lookup.qual] then requires `foo` to denote a class,
enumeration or namespace.
Clang, MSVC (and IAR) give diagnostics for this, see
https://godbolt.org/g/vhW9si
(`int :: Foo` is not a qualified ID because `int` is only a
simple-type-specifier, [dcl.type.simple])
But also consider open issue
http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#1828
>From gcc-bugs-return-572121-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 08:49:14 2017
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From: "rockeet at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/81389] _mm_cmpestri segfault on -O0
Date: Tue, 15 Aug 2017 09:36:00 -0000
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rockeet <rockeet at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |---
--- Comment #11 from rockeet <rockeet at gmail dot com> ---
@H.J. Lu
Have you tried your `solution`?
`_mm_cmpestri` is a C function and have no overloaded with type `__m128i_u`.
>From gcc-bugs-return-572122-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 09:36:12 2017
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From: "victor.sunye at upc dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/81838] New: Internal compiler error (cp/typeck2.c:1264)
Date: Tue, 15 Aug 2017 10:11:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81838
Bug ID: 81838
Summary: Internal compiler error (cp/typeck2.c:1264)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: victor.sunye at upc dot edu
Target Milestone: ---
template <class inT>
union Unit
{
struct
{
inT a, b;
} header;
double align;
};
int
main (void)
{
Unit <int> *chunk;
chunk = new Unit <int> [10] {.align = 0};
delete [] chunk;
return 0;
}
==> compiled with "g++ -std=c++14 -g -Wall -Wextra" gives:
compiler_bug.cpp:18:42: internal compiler error: in
process_init_constructor_array, at cp/typeck2.c:1264
chunk = new Unit <int> [10] {.align = 0};
^
==> g++ version: g++ (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
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From: "victor.sunye at upc dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/81837] New: Internal compiler error (cp/typeck2.c:1264)
Date: Tue, 15 Aug 2017 10:19:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81837
Bug ID: 81837
Summary: Internal compiler error (cp/typeck2.c:1264)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: victor.sunye at upc dot edu
Target Milestone: ---
template <class inT>
union Unit
{
struct
{
inT a, b;
} header;
double align;
};
int
main (void)
{
Unit <int> *chunk;
chunk = new Unit <int> [10] {.align = 0};
delete [] chunk;
return 0;
}
==> compiled with "g++ -std=c++14 -g -Wall -Wextra -o compiler_bug
compiler_bug.cpp" gives:
compiler_bug.cpp:18:42: internal compiler error: in
process_init_constructor_array, at cp/typeck2.c:1264
chunk = new Unit <int> [10] {.align = 0};
^
==> g++ version: g++ (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
>From gcc-bugs-return-572124-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 09:40:38 2017
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From: "victor.sunye at upc dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/81839] New: Internal compiler error (cp/typeck2.c:1264)
Date: Tue, 15 Aug 2017 10:54:00 -0000
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Bug ID: 81839
Summary: Internal compiler error (cp/typeck2.c:1264)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
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template <class inT>
union Unit
{
struct
{
inT a, b;
} header;
double align;
};
int
main (void)
{
Unit <int> *chunk;
chunk = new Unit <int> [10] {.align = 0};
delete [] chunk;
return 0;
}
==> compiled with "g++ -std=c++14 -g -Wall -Wextra" gives:
compiler_bug.cpp:18:42: internal compiler error: in
process_init_constructor_array, at cp/typeck2.c:1264
chunk = new Unit <int> [10] {.align = 0};
^
==> g++ version: g++ (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
>From gcc-bugs-return-572127-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 10:54:32 2017
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/81811] missing -Wreturn-local-addr returning strcpy result
Date: Tue, 15 Aug 2017 10:54:00 -0000
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Wonder whether the memcpy case is because we fold the memcpy away as both
memcpy and strcpy are marked RET1 (returns arg1).
>From gcc-bugs-return-572125-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 10:11:48 2017
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug testsuite/81807] [8 Regression] many *.cc asan tests fail
Date: Tue, 15 Aug 2017 10:54:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |8.0
Summary|many *.cc asan tests fail |[8 Regression] many *.cc
| |asan tests fail
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Subject: [Bug middle-end/81812] [7/8 Regression] Empty virtual function fails to compile
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
CC| |rguenth at gcc dot gnu.org
Component|c++ |middle-end
Target Milestone|--- |7.2
>From gcc-bugs-return-572129-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 10:54:36 2017
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Subject: [Bug tree-optimization/81814] Incorrect behaviour at -O0 (conditional operator)
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-15
CC| |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
The folding obviously preserves precision changing casts, so it should be
valid. Things must go wrong elsewhere, possibly in
operand_equal_for_comparison_p which ends up using get_narrower.
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/81813] Inefficient stack pointer adjustment
Date: Tue, 15 Aug 2017 11:19:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|x86_64-pc-linux-gnu |x86_64-*-*
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Interesting ;) A peephole might help.
>From gcc-bugs-return-572130-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 10:54:38 2017
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Subject: [Bug tree-optimization/81810] unused strcpy to a local buffer not eliminated
Date: Tue, 15 Aug 2017 11:28:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-15
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
>From gcc-bugs-return-572131-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 10:55:51 2017
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Subject: [Bug c/81389] _mm_cmpestri segfault on -O0
Date: Tue, 15 Aug 2017 11:29:00 -0000
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--- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to rockeet from comment #11)
> @H.J. Lu
>
> Have you tried your `solution`?
>
> `_mm_cmpestri` is a C function and have no overloaded with type `__m128i_u`.
[hjl@gnu-tools-1 pr81389]$ cat y.c
#include <nmmintrin.h>
#include <stdio.h>
int main(int argc, char* argv[]) {
__m128i key128 = { ':' };
const char data[] = "___0123456789:_:abcdefghijklmn";
const char* ptr = argc < 100 ? data : argv[1];
int idx = _mm_cmpestri(key128, 1,
*(const __m128i_u*)(ptr+3), 16, // don't require memory
align
_SIDD_UBYTE_OPS|_SIDD_CMP_EQUAL_ORDERED|_SIDD_LEAST_SIGNIFICANT);
printf("%zd\n", idx);
return 0;
}
[hjl@gnu-tools-1 pr81389]$ gcc -O0 -msse4 y.c
[hjl@gnu-tools-1 pr81389]$ ./a.out
10
[hjl@gnu-tools-1 pr81389]$
>From gcc-bugs-return-572132-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 11:19:31 2017
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Subject: [Bug tree-optimization/81814] Incorrect behaviour at -O0 (conditional operator)
Date: Tue, 15 Aug 2017 11:44:00 -0000
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--- Comment #7 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Yes, it's in operand_equal_for_comparison_p, and that would also explain why it
started with r125012. I didn't update the BZ when I found this out. I hope to
look into this more this week.
>From gcc-bugs-return-572133-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 11:28:54 2017
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Subject: [Bug tree-optimization/81790] [8 Regression] ICE in vn_nary_build_or_lookup_1, at tree-ssa-sccvn.c:1738
Date: Tue, 15 Aug 2017 12:03:00 -0000
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--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Aug 15 11:26:32 2017
New Revision: 251103
URL: https://gcc.gnu.org/viewcvs?rev=251103&root=gcc&view=rev
Log:
2017-08-15 Richard Biener <rguenther@suse.de>
PR tree-optimization/81790
* tree-ssa-sccvn.c (vn_lookup_simplify_result): Handle both
CONSTRUCTORs from simplifying and VN.
* gcc.dg/torture/pr81790.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr81790.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-572134-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 11:29:46 2017
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Subject: [Bug tree-optimization/81790] [8 Regression] ICE in vn_nary_build_or_lookup_1, at tree-ssa-sccvn.c:1738
Date: Tue, 15 Aug 2017 12:03:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
FIxed.
>From gcc-bugs-return-572135-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 11:47:28 2017
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Subject: [Bug tree-optimization/81815] Invalid conditional reduction
Date: Tue, 15 Aug 2017 12:07:00 -0000
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The branch looks affected as well.
>From gcc-bugs-return-572136-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 12:03:47 2017
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From: "tkoenig at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/38592] Optimize memmove / memcmp combination
Date: Tue, 15 Aug 2017 13:07:00 -0000
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Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2009-02-19 05:44:12 |2017-8-15
Component|fortran |tree-optimization
Summary|eliminate some string |Optimize memmove / memcmp
|comparisons |combination
--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
I think the best place to fix this is in the middle-end.
Here is a C test case:
int yes()
{
char a[3];
__builtin_memmove (a, "yes", 3);
return __builtin_memcmp(a,"yes",3);
}
This generates a memcmp with current trunk:
.LC0:
.string "yes"
.text
.p2align 4,,15
.globl yes
.type yes, @function
yes:
.LFB0:
.cfi_startproc
subq $24, %rsp
.cfi_def_cfa_offset 32
movl $25977, %eax
movl $3, %edx
leaq 13(%rsp), %rdi
movl $.LC0, %esi
movw %ax, 13(%rsp)
movb $115, 15(%rsp)
call memcmp
addq $24, %rsp
.cfi_def_cfa_offset 8
ret
.cfi_endproc
.LFE0:
.size yes, .-yes
.ident "GCC: (GNU) 8.0.0 20170730 (experimental)"
.section .note.GNU-stack,"",@progbits
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Subject: [Bug fortran/44350] accepts illegal fortran in BLOCK DATA
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dbroemmel <dibr-bugzilla at daswigwam dot de> changed:
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--- Comment #9 from dbroemmel <dibr-bugzilla at daswigwam dot de> ---
Please have a look at Bug 81841 which seems to be related to this fix.
>From gcc-bugs-return-572138-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 12:07:45 2017
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Subject: [Bug target/79912] [7/8 regression] LRA unable to generate reloads after r245655
Date: Tue, 15 Aug 2017 13:09:00 -0000
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--- Comment #20 from mpf at gcc dot gnu.org ---
Palmer: There is a commit listed for this bug, did that fix the issue and can
the bug be marked fixed?
>From gcc-bugs-return-572139-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 13:07:45 2017
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From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/45963] inconsistent and poor array initialization diagnostic
Date: Tue, 15 Aug 2017 13:11:00 -0000
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Eric Gallager <egallager at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Keywords| |diagnostic
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-15
CC| |egallager at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
g++'s message is now:
$ /usr/local/bin/g++ -c 45963.cc
45963.cc: In constructor ‘bar::bar()’:
45963.cc:9:13: error: incompatible types in assignment of ‘int’ to ‘int [5]’
bar() : a(1) {}
^
45963.cc: In constructor ‘bar::bar(bool)’:
45963.cc:10:17: error: invalid initializer for array member ‘foo bar::b [5]’
bar(bool) : b(1) {}
^
$
Which I guess is kinda better than before, but looking at the Comeau output you
posted, g++ could still probably add a fixit hint or something, so confirmed.
>From gcc-bugs-return-572140-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 13:09:31 2017
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Subject: [Bug c++/81838] Internal compiler error (cp/typeck2.c:1264)
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Eric Gallager <egallager at gcc dot gnu.org> changed:
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--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
Dup.
*** This bug has been marked as a duplicate of bug 81837 ***
>From gcc-bugs-return-572141-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 13:09:36 2017
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Subject: [Bug c++/81837] Internal compiler error (cp/typeck2.c:1264)
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--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
*** Bug 81838 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-572142-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 13:12:00 2017
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Subject: [Bug c++/81837] Internal compiler error (cp/typeck2.c:1264)
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--- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> ---
*** Bug 81839 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-572143-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 13:12:06 2017
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Subject: [Bug c++/81839] Internal compiler error (cp/typeck2.c:1264)
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Eric Gallager <egallager at gcc dot gnu.org> changed:
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--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
Guessing you probably got gateway errors when submitting to Bugzilla or
something?
*** This bug has been marked as a duplicate of bug 81837 ***
>From gcc-bugs-return-572144-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 15 13:18:05 2017
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Subject: [Bug c++/46634] cp/typeck2.c: uses BITS_PER_UNIT in lieu of TYPE_PRECISION (char_type_node)
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Eric Gallager <egallager at gcc dot gnu.org> changed:
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--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Jorn Wolfgang Rennecke from comment #0)
>
Um... bug report missing? Would help to have something more than the title...
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From: Jonathan Wakely <jwakely.gcc@gmail.com>
Date: Tue, 15 Aug 2017 14:11:00 -0000
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Subject: Re: [Bug web/?????] New: Fwd: failure notice: Bugzilla down.
To: Martin Sebor <msebor@gmail.com>
Cc: Eric Gallager <egall@gwmail.gwu.edu>, gcc-bugs@gcc.gnu.org, GCC Mailing List <gcc@gcc.gnu.org>
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On 15 August 2017 at 04:10, Martin Sebor wrote:
> On 08/14/2017 04:22 PM, Eric Gallager wrote:
>>
>> I'm emailing this manually to the list because Bugzilla is down and I
>> can't file a bug on Bugzilla about Bugzilla being down. The error
>> message looks like this:
Even if it were possible, there wouldn't be any point in filing a bug
that bugzilla's down, and so not much point emailing gcc-bugs either
(since that's for bugzilla mail). Using gcc@ seems like the right
list to me.
N.B. since the server is being restored from a backup all of
yesterday's changes to bugzilla have been lost, including all Richi's
7.2 release changes, and Eric's housekeeping.
I don't suggest redoing all that work until all services are fully
restored, in case it's lost again.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/81836] ill-formed qualified name not diagnosed
2017-08-15 8:47 [Bug c++/81836] New: ill-formed qualified name not diagnosed gcc@arne-mertz.de
@ 2020-07-08 16:02 ` redi at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: redi at gcc dot gnu.org @ 2020-07-08 16:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81836
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|diagnostic |
Last reconfirmed|2017-08-21 00:00:00 |2020-7-8
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Eric Gallager from comment #2)
> cc-ing diagnostics maintainers
This is not a problem with a diagnostic, the diagnostic is just missing. That's
accepts-invalid.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-08-15 8:47 [Bug c++/81836] New: ill-formed qualified name not diagnosed gcc@arne-mertz.de
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