[Bug c++/60047] New: ICE with defaulted copy-constructor and virtual base class

[Bug c++/60047] New: ICE with defaulted copy-constructor and virtual base class

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60047

            Bug ID: 60047
           Summary: ICE with defaulted copy-constructor and virtual base
                    class
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: paolo.carlini at oracle dot com

Testcase (noticed while looking into PR58871):

struct B { };

template<typename T> struct A : virtual B
{
   A();
   A(const A&);
};

template<typename T> A<T>::A(const A<T>&) = default;

A<int> a = A<int>();

[Bug c++/60047] ICE with defaulted copy constructor and virtual base class

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60047

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-02-03
                 CC|                            |jason at gcc dot gnu.org
            Summary|ICE with defaulted          |ICE with defaulted copy
                   |copy-constructor and        |constructor and virtual
                   |virtual base class          |base class
     Ever confirmed|0                           |1

[Bug c++/60047] [4.7/4.8/4.9 Regression] ICE with defaulted copy constructor and virtual base class

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60047

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|ICE with defaulted copy     |[4.7/4.8/4.9 Regression]
                   |constructor and virtual     |ICE with defaulted copy
                   |base class                  |constructor and virtual
                   |                            |base class

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
It's a regression from 4.5.

[Bug c++/60047] [4.7/4.8/4.9 Regression] ICE with defaulted copy constructor and virtual base class

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60047

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Mine.

[Bug c++/60047] [4.7/4.8/4.9 Regression] ICE with defaulted copy constructor and virtual base class

[paolo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60047

--- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Wed Feb 12 08:45:46 2014
New Revision: 207712

URL: http://gcc.gnu.org/viewcvs?rev=207712&root=gcc&view=rev
Log:
/cp
2014-02-12  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/60047
    * method.c (implicitly_declare_fn): A constructor of a class with
    virtual base classes isn't constexpr (7.1.5p4).

/testsuite
2014-02-12  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/60047
    * g++.dg/cpp0x/pr60047.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/pr60047.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/method.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/60047] [4.7/4.8 Regression] ICE with defaulted copy constructor and virtual base class

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60047

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                 CC|jason at gcc dot gnu.org           |
         Resolution|---                         |FIXED
           Assignee|paolo.carlini at oracle dot com    |unassigned at gcc dot gnu.org
   Target Milestone|---                         |4.9.0
            Summary|[4.7/4.8/4.9 Regression]    |[4.7/4.8 Regression] ICE
                   |ICE with defaulted copy     |with defaulted copy
                   |constructor and virtual     |constructor and virtual
                   |base class                  |base class

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed for 4.9.0. Note that there is no ICE in release mode anyway.