[Bug c++/38701] New: [4.4 regression] ICE with defaulted function

[Bug c++/38701] New: [4.4 regression] ICE with defaulted function

[reichelt at gcc dot gnu dot org]

The following invalid code snippet triggers an ICE on the trunk:

======================================
void foo() = default;
======================================

bug.cc:1: error: 'void foo()' cannot be defaulted
bug.cc:1: internal compiler error: Segmentation fault
Please submit a full bug report, [etc.]

A similar code snippet triggers an ICE in a different place:

======================================
namespace
{
  void foo() = default;
}
======================================

bug.cc:3: error: 'void<unnamed>::foo()' cannot be defaulted
bug.cc:3: internal compiler error: tree check: expected class 'type', have
'declaration' (namespace_decl) in synthesize_method, at cp/method.c:758
Please submit a full bug report, [etc.]

This is a recent regression on the trunk, introduced between 2008-11-20
and 2008-12-06.


-- 
           Summary: [4.4 regression] ICE with defaulted function
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701

[Bug c++/38701] [4.4 regression] ICE with defaulted function

[reichelt at gcc dot gnu dot org]

-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701

[Bug c++/38701] [4.4 regression] ICE with defaulted function

[paolo dot carlini at oracle dot com]

------- Comment #1 from paolo dot carlini at oracle dot com  2009-01-02 15:29 -------
CC-ing Jason...


-- 

paolo dot carlini at oracle dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701

[Bug c++/38701] [4.4 regression] ICE with defaulted function

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2009-01-02 20:09 -------
Confirmed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-01-02 20:09:37
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701

[Bug c++/38701] [4.4 regression] ICE with defaulted function

[jason at gcc dot gnu dot org]

-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jason at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-01-02 20:09:37         |2009-01-03 03:49:42
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701

[Bug c++/38701] [4.4 regression] ICE with defaulted function

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701

[Bug c++/38701] [4.4 regression] ICE with defaulted function

[jason at gcc dot gnu dot org]

------- Comment #3 from jason at gcc dot gnu dot org  2009-01-05 17:52 -------
Subject: Bug 38701

Author: jason
Date: Mon Jan  5 17:52:18 2009
New Revision: 143081

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143081
Log:
        PR c++/38701
        * decl.c (cp_finish_decl): Clear DECL_INITIAL for invalid
        defaulting.

        PR c++/38702
        * class.c (defaultable_fn_p): Only operator== can be a copy
        assignment operator.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/defaulted7.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/class.c
    trunk/gcc/cp/decl.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701

[Bug c++/38701] [4.4 regression] ICE with defaulted function

[jason at gcc dot gnu dot org]

------- Comment #4 from jason at gcc dot gnu dot org  2009-01-05 17:52 -------
Subject: Bug 38701

Author: jason
Date: Mon Jan  5 17:52:35 2009
New Revision: 143082

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143082
Log:
        PR c++/38701
        * decl.c (cp_finish_decl): Clear DECL_INITIAL for invalid
        defaulting.

        PR c++/38702
        * class.c (defaultable_fn_p): Only operator== can be a copy
        assignment operator.

Modified:
    trunk/gcc/cp/cp-tree.h


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701

[Bug c++/38701] [4.4 regression] ICE with defaulted function

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2009-01-05 18:32 -------
Fixed.


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38701