[Bug c++/51612] New: [c++0x] [4.7 Regression] ICE with constexpr constructor and virtual base class

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51612

             Bug #: 51612
           Summary: [c++0x] [4.7 Regression] ICE with constexpr
                    constructor and virtual base class
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: reich...@gcc.gnu.org


The following valid code snippet triggers an ICE on trunk:

========================
struct A {};

struct B : virtual A
{
  constexpr B() {}
};
========================

bug.cc: In constructor 'constexpr B::B()':
bug.cc:5:18: internal compiler error: in build_data_member_initialization, at
cp/semantics.c:5781
Please submit a full bug report, [etc.]