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[Bug c++/32567] New: [4.3 regression] ICE on invalid use of parameter pack


The following invalid code snippet triggers an ICE on mainline:

============================================================
template <typename... T> struct A
{
  static T &t;
  static const int i = sizeof(++t);
};

int x[A<int>::i];
============================================================

bug.cc:3: error: parameter packs not expanded with `...':
bug.cc:3: note:         'T'
bug.cc: In instantiation of 'const int A<int>::i':
bug.cc:7:   instantiated from here
bug.cc:4: error: invalid use of template type parameter 'T'
bug.cc:4: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in get_unwidened, at tree.c:5887
Please submit a full bug report, [etc.]


-- 
           Summary: [4.3 regression] ICE on invalid use of parameter pack
           Product: gcc
           Version: 4.3.0
            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=32567


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