[Bug c++/28052] New: [4.2 regression] ICE on invalid bitfield

[reichelt at gcc dot gnu dot org]

The following invalid code snippet causes an ICE on mainline:

============================================
struct A
{
  double d : 2;
  A() {}
};
============================================

bug.cc:3: error: bit-field 'double A::d' with non-integral type
bug.cc: In constructor 'A::A()':
bug.cc:4: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in perform_member_init, at cp/init.c:350
Please submit a full bug report, [etc.]

Replacing the constructor by a destructor I get:

============================================
struct A
{
  double d : 2;
  ~A() {}
};
============================================

bug.cc:3: error: bit-field 'double A::d' with non-integral type
bug.cc: In destructor 'A::~A()':
bug.cc:4: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in push_base_cleanups, at cp/init.c:2903
Please submit a full bug report, [etc.]

This is a very recent regression (GCC 4.2.0 20060527 was not affected).


-- 
           Summary: [4.2 regression] ICE on invalid bitfield
           Product: gcc
           Version: 4.2.0
            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=28052