[Bug c++/48115] New: [4.6/4.7 Regression] [C++0x] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[Bug c++/48115] New: [4.6/4.7 Regression] [C++0x] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48115

           Summary: [4.6/4.7 Regression] [C++0x] internal compiler error:
                    in type_has_nontrivial_copy_init, at cp/tree.c:2482
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: redi@gcc.gnu.org


template<typename> struct templ { };

typedef void (*F2)(...);

template<typename F, typename T>
struct S
{
    template<typename A>
        decltype( F()(T()) )
        f(A);
};

int main()
{
    S<F2, templ<int>>().f(0);
}

compiles ok with 4.5, ICE with 4.6.o 20110305

[Bug c++/48115] [4.6/4.7 Regression] [C++0x] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48115

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.03.14 16:06:09
   Target Milestone|---                         |4.6.0
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-14 16:06:09 UTC ---
Confirmed.

[Bug c++/48115] [4.6/4.7 Regression] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48115

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.6/4.7 Regression]        |[4.6/4.7 Regression]
                   |[C++0x] internal compiler   |internal compiler error: in
                   |error: in                   |type_has_nontrivial_copy_in
                   |type_has_nontrivial_copy_in |it, at cp/tree.c:2482
                   |it, at cp/tree.c:2482       |

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-03-14 16:52:30 UTC ---
Here's a C++03 version which works with 4.5, clang and EDG, but ICEs with 4.6

template<typename> struct templ { };

template<typename T> T declval();

typedef int (*F2)(...);

template<int> struct Int { };

template<typename F, typename T>
struct S
{
    template<typename A>
        Int<sizeof( declval<F>()(T()) )>
        f(A);
};

int main()
{
    S<F2, templ<int> >().f(0);
}

[Bug c++/48115] [4.6/4.7 Regression] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48115

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |jason at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-14 19:18:26 UTC ---
Started failing with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161582

[Bug c++/48115] [4.6/4.7 Regression] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48115

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |jason at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-16 18:04:58 UTC ---
Got it.

[Bug c++/48115] [4.6/4.7 Regression] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48115

--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-16 20:02:08 UTC ---
Author: jason
Date: Wed Mar 16 20:02:04 2011
New Revision: 171063

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171063
Log:
    PR c++/48115
    * call.c (convert_arg_to_ellipsis): Handle incomplete type.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/g++.dg/template/incomplete6.C
Modified:
    branches/gcc-4_6-branch/gcc/cp/ChangeLog
    branches/gcc-4_6-branch/gcc/cp/call.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog

[Bug c++/48115] [4.6/4.7 Regression] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48115

--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-16 20:03:53 UTC ---
Author: jason
Date: Wed Mar 16 20:03:46 2011
New Revision: 171066

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171066
Log:
    PR c++/48115
    * call.c (convert_arg_to_ellipsis): Handle incomplete type.

Added:
    trunk/gcc/testsuite/g++.dg/template/incomplete6.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/48115] [4.6/4.7 Regression] internal compiler error: in type_has_nontrivial_copy_init, at cp/tree.c:2482

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48115

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-16 20:22:42 UTC ---
Fixed.