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* [Bug c++/101095] New: Bogus "error: conflicting global module declaration" for abbreviate function template using placeholder type in noexcept
@ 2021-06-16 12:36 redi at gcc dot gnu.org
2021-06-16 15:24 ` [Bug c++/101095] Bogus "error: conflicting global module declaration" for abbreviated " redi at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: redi at gcc dot gnu.org @ 2021-06-16 12:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101095
Bug ID: 101095
Summary: Bogus "error: conflicting global module declaration"
for abbreviate function template using placeholder
type in noexcept
Product: gcc
Version: 11.1.1
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Target Milestone: ---
cat > mod.h <<EOT
#ifndef MOD_H
#define MOD_H
template<typename T> concept rhubarb = true;
template<typename T> constexpr bool nothrow = true;
void donkey(rhubarb auto i) noexcept(nothrow<decltype(i)>) { }
#endif
EOT
cat > mod.H <<EOT
#include "mod.h"
EOT
cat > mod.C <<EOT
#include "mod.h"
import "mod.H";
int main()
{
donkey(1);
}
EOT
g++ -std=c++20 -fmodule-header mod.H -c
g++ -std=c++20 -fmodules-ts mod.C
This gives a bogus error:
In file included from mod.H:1,
of module ./mod.H, imported at mod.C:2:
mod.h: In function ‘int main()’:
mod.h:5:6: error: conflicting global module declaration ‘template<class auto:1>
void donkey(auto:1)’
5 | void donkey(rhubarb auto i) noexcept(nothrow<decltype(i)>) { }
| ^~~~~~
In file included from mod.C:1:
mod.h:5:6: note: existing declaration ‘template<class auto:1> requires
rhubarb<auto:1> void donkey(auto:1)’
5 | void donkey(rhubarb auto i) noexcept(nothrow<decltype(i)>) { }
| ^~~~~~
mod.C:6:3: note: during load of binding ‘::donkey’
6 | donkey(1);
| ^~~~~~
The code compiles OK if the noexcept-specifier doesn't refer to the auto:1
type.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/101095] Bogus "error: conflicting global module declaration" for abbreviated function template using placeholder type in noexcept
2021-06-16 12:36 [Bug c++/101095] New: Bogus "error: conflicting global module declaration" for abbreviate function template using placeholder type in noexcept redi at gcc dot gnu.org
@ 2021-06-16 15:24 ` redi at gcc dot gnu.org
2021-07-14 21:20 ` jason at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: redi at gcc dot gnu.org @ 2021-06-16 15:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101095
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2021-06-16
Ever confirmed|0 |1
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This causes:
FAIL: g++.dg/modules/xtreme-header-2_b.C -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-2_b.C -std=c++2b (test for excess errors)
FAIL: g++.dg/modules/xtreme-tr1_b.C -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/xtreme-tr1_b.C -std=c++2b (test for excess errors)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/101095] Bogus "error: conflicting global module declaration" for abbreviated function template using placeholder type in noexcept
2021-06-16 12:36 [Bug c++/101095] New: Bogus "error: conflicting global module declaration" for abbreviate function template using placeholder type in noexcept redi at gcc dot gnu.org
2021-06-16 15:24 ` [Bug c++/101095] Bogus "error: conflicting global module declaration" for abbreviated " redi at gcc dot gnu.org
@ 2021-07-14 21:20 ` jason at gcc dot gnu.org
2021-07-15 3:18 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2021-07-14 21:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101095
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/101095] Bogus "error: conflicting global module declaration" for abbreviated function template using placeholder type in noexcept
2021-06-16 12:36 [Bug c++/101095] New: Bogus "error: conflicting global module declaration" for abbreviate function template using placeholder type in noexcept redi at gcc dot gnu.org
2021-06-16 15:24 ` [Bug c++/101095] Bogus "error: conflicting global module declaration" for abbreviated " redi at gcc dot gnu.org
2021-07-14 21:20 ` jason at gcc dot gnu.org
@ 2021-07-15 3:18 ` cvs-commit at gcc dot gnu.org
2022-03-22 5:18 ` cvs-commit at gcc dot gnu.org
2022-10-20 16:45 ` ppalka at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-07-15 3:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101095
--- Comment #2 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:0b7a11874d4eb428c18a91f38786032ce0e77a96
commit r12-2313-g0b7a11874d4eb428c18a91f38786032ce0e77a96
Author: Jason Merrill <jason@redhat.com>
Date: Wed Jul 14 17:10:49 2021 -0400
c++: fix tree_contains_struct for C++ types [PR101095]
Many of the types from cp-tree.def were only marked as having tree_common,
when actually most of them have type_non_common. This broke
g++.dg/modules/xtreme-header-2, as the modules code relies on
tree_contains_struct to know what bits it needs to stream.
We don't seem to use type_non_common for TYPE_ARGUMENT_PACK, so I bumped it
down to TS_TYPE_COMMON. I tried doing the same in cp_tree_size, but that
breaks without more extensive changes to tree_node_structure.
Why do we need the init_ts function anyway? It seems redundant with
tree_node_structure.
PR c++/101095
gcc/cp/ChangeLog:
* cp-objcp-common.c (cp_common_init_ts): Mark types as types.
(cp_tree_size): Remove redundant entries.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/101095] Bogus "error: conflicting global module declaration" for abbreviated function template using placeholder type in noexcept
2021-06-16 12:36 [Bug c++/101095] New: Bogus "error: conflicting global module declaration" for abbreviate function template using placeholder type in noexcept redi at gcc dot gnu.org
` (2 preceding siblings ...)
2021-07-15 3:18 ` cvs-commit at gcc dot gnu.org
@ 2022-03-22 5:18 ` cvs-commit at gcc dot gnu.org
2022-10-20 16:45 ` ppalka at gcc dot gnu.org
4 siblings, 0 replies; 6+ 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=101095
--- Comment #3 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:0a63e3ee2d5c9aa0e51aa1eb54c3d14c06418ac3
commit r11-9680-g0a63e3ee2d5c9aa0e51aa1eb54c3d14c06418ac3
Author: Jason Merrill <jason@redhat.com>
Date: Wed Jul 14 17:10:49 2021 -0400
c++: fix tree_contains_struct for C++ types [PR101095]
Many of the types from cp-tree.def were only marked as having tree_common,
when actually most of them have type_non_common. This broke
g++.dg/modules/xtreme-header-2, as the modules code relies on
tree_contains_struct to know what bits it needs to stream.
We don't seem to use type_non_common for TYPE_ARGUMENT_PACK, so I bumped it
down to TS_TYPE_COMMON. I tried doing the same in cp_tree_size, but that
breaks without more extensive changes to tree_node_structure.
Why do we need the init_ts function anyway? It seems redundant with
tree_node_structure.
PR c++/101095
gcc/cp/ChangeLog:
* cp-objcp-common.c (cp_common_init_ts): Mark types as types.
(cp_tree_size): Remove redundant entries.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/101095] Bogus "error: conflicting global module declaration" for abbreviated function template using placeholder type in noexcept
2021-06-16 12:36 [Bug c++/101095] New: Bogus "error: conflicting global module declaration" for abbreviate function template using placeholder type in noexcept redi at gcc dot gnu.org
` (3 preceding siblings ...)
2022-03-22 5:18 ` cvs-commit at gcc dot gnu.org
@ 2022-10-20 16:45 ` ppalka at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: ppalka at gcc dot gnu.org @ 2022-10-20 16:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101095
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Target Milestone|--- |11.3
Resolution|--- |FIXED
--- Comment #4 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Fixed for GCC 11.3+ I suppose
^ permalink raw reply [flat|nested] 6+ messages in thread
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2021-07-14 21:20 ` jason at gcc dot gnu.org
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