[Bug c++/35316] New: [4.2/4.3/4.4 regression] ICE with typeof/decltype and bit-fields

[Bug c++/35316] New: [4.2/4.3/4.4 regression] ICE with typeof/decltype and bit-fields

[reichelt at gcc dot gnu dot org]

The following valid code snippet triggers an ICE since GCC 4.2.0:

==========================
template<int> struct A
{
  int i : 2;

  void foo()
  {
    typeof(i) j;
  }
};
==========================

bug.cc: In member function 'void A<<anonymous> >::foo()':
bug.cc:7: internal compiler error: Segmentation fault
Please submit a full bug report, [etc.]

Also happens with __decltype instead of typeof (on mainline and 4.3 branch).


-- 
           Summary: [4.2/4.3/4.4 regression] ICE with typeof/decltype and
                    bit-fields
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, 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=35316

[Bug c++/35316] [4.2/4.3/4.4 regression] ICE with typeof/decltype and bit-fields

[reichelt at gcc dot gnu dot org]

-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.2.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316

[Bug c++/35316] [4.2/4.3/4.4 regression] ICE with typeof/decltype and bit-fields

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Priority|P3                          |P2
   Last reconfirmed|0000-00-00 00:00:00         |2008-03-03 16:23:09
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316

[Bug c++/35316] [4.2/4.3/4.4 regression] ICE with typeof/decltype and bit-fields

[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|2008-03-03 16:23:09         |2008-04-22 18:38:04
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316

[Bug c++/35316] [4.2/4.3/4.4 regression] ICE with typeof/decltype and bit-fields

[jason at gcc dot gnu dot org]

------- Comment #1 from jason at gcc dot gnu dot org  2008-04-22 23:14 -------
Subject: Bug 35316

Author: jason
Date: Tue Apr 22 23:13:19 2008
New Revision: 134571

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=134571
Log:
        PR c++/35316
        * semantics.c (finish_decltype_type): Check DECL_BIT_FIELD_TYPE
        to see if DECL_BIT_FIELD_TYPE should be used, not some other flag.
        * typeck.c (is_bitfield_expr_with_lowered_type): Likewise.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/decltype11.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/semantics.c
    trunk/gcc/cp/typeck.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316

[Bug c++/35316] [4.2/4.3/4.4 regression] ICE with typeof/decltype and bit-fields

[jason at gcc dot gnu dot org]

------- Comment #2 from jason at gcc dot gnu dot org  2008-04-23 01:46 -------
Subject: Bug 35316

Author: jason
Date: Wed Apr 23 01:45:30 2008
New Revision: 134578

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=134578
Log:
        PR c++/35316
        * semantics.c (finish_decltype_type): Check DECL_BIT_FIELD_TYPE
        to see if DECL_BIT_FIELD_TYPE should be used, not some other flag.
        * typeck.c (is_bitfield_expr_with_lowered_type): Likewise.

Added:
    branches/gcc-4_3-branch/gcc/testsuite/g++.dg/cpp0x/decltype11.C
      - copied unchanged from r134571,
trunk/gcc/testsuite/g++.dg/cpp0x/decltype11.C
Modified:
    branches/gcc-4_3-branch/gcc/cp/ChangeLog
    branches/gcc-4_3-branch/gcc/cp/semantics.c
    branches/gcc-4_3-branch/gcc/cp/typeck.c
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316

[Bug c++/35316] [4.2 regression] ICE with typeof/decltype and bit-fields

[reichelt at gcc dot gnu dot org]

------- Comment #3 from reichelt at gcc dot gnu dot org  2008-04-26 19:57 -------
Fixed on mainline and 4.3 branch.


-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.2/4.3/4.4 regression] ICE|[4.2 regression] ICE with
                   |with typeof/decltype and    |typeof/decltype and bit-
                   |bit-fields                  |fields


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316

[Bug c++/35316] [4.2 regression] ICE with typeof/decltype and bit-fields

[jsm28 at gcc dot gnu dot org]

------- Comment #4 from jsm28 at gcc dot gnu dot org  2008-05-19 20:25 -------
4.2.4 is being released, changing milestones to 4.2.5.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.2.4                       |4.2.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316

[Bug c++/35316] [4.2 regression] ICE with typeof/decltype and bit-fields

[jason at gcc dot gnu dot org]

------- Comment #5 from jason at gcc dot gnu dot org  2008-12-02 17:09 -------
Fixed in 4.3.


-- 

jason at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316

[Bug c++/35316] [4.2 regression] ICE with typeof/decltype and bit-fields

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.2.5                       |4.3.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35316