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* [Bug c++/104615] New: [Concepts] ICE in explicit instantiation when multiple candidates are valid (CWG2421)
@ 2022-02-21 17:35 roi.jacobson1 at gmail dot com
  2022-03-07  1:43 ` [Bug c++/104615] " pinskia at gcc dot gnu.org
  2023-03-08 21:07 ` pinskia at gcc dot gnu.org
  0 siblings, 2 replies; 3+ messages in thread
From: roi.jacobson1 at gmail dot com @ 2022-02-21 17:35 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104615

            Bug ID: 104615
           Summary: [Concepts] ICE in explicit instantiation when multiple
                    candidates are valid (CWG2421)
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: roi.jacobson1 at gmail dot com
  Target Milestone: ---

#include <concepts>
template<class T>
struct B {
    int f() requires (!std::same_as<T, char>) {
        return 0;
    }
    int f() requires (!std::same_as<T, char> && !std::same_as<T, float>) {
        return 1;
    }
};
template struct B<int>;


This crashes GCC with "<source>:12:23: error: Two symbols with same
comdat_group are not linked by the same_comdat_group list." as both functions
are compiled and have the same mangling.

Also, CWG2421 is still open about what the actual behavior should be in this
case.

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug c++/104615] [Concepts] ICE in explicit instantiation when multiple candidates are valid (CWG2421)
  2022-02-21 17:35 [Bug c++/104615] New: [Concepts] ICE in explicit instantiation when multiple candidates are valid (CWG2421) roi.jacobson1 at gmail dot com
@ 2022-03-07  1:43 ` pinskia at gcc dot gnu.org
  2023-03-08 21:07 ` pinskia at gcc dot gnu.org
  1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-03-07  1:43 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104615

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=68608
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2022-03-07

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug c++/104615] [Concepts] ICE in explicit instantiation when multiple candidates are valid (CWG2421)
  2022-02-21 17:35 [Bug c++/104615] New: [Concepts] ICE in explicit instantiation when multiple candidates are valid (CWG2421) roi.jacobson1 at gmail dot com
  2022-03-07  1:43 ` [Bug c++/104615] " pinskia at gcc dot gnu.org
@ 2023-03-08 21:07 ` pinskia at gcc dot gnu.org
  1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-03-08 21:07 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104615

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 68608.

*** This bug has been marked as a duplicate of bug 68608 ***

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2023-03-08 21:07 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-02-21 17:35 [Bug c++/104615] New: [Concepts] ICE in explicit instantiation when multiple candidates are valid (CWG2421) roi.jacobson1 at gmail dot com
2022-03-07  1:43 ` [Bug c++/104615] " pinskia at gcc dot gnu.org
2023-03-08 21:07 ` pinskia at gcc dot gnu.org

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