Compile the following program using 4.6 or trunk compiler and run it, the program will seg fault. The problem is that the D3_Spec's primary vtable has a null entry for virtual function id which it overrides.
The root cause is that the base class's virtual function list for the derived class is copied from the base class -- so that lost_primary bit may be 'inherited'. However this bit is not properly reset to 0 after the derive class's vtable is analyzed. The attached trivial patch fixed the problem. Bootstrap and tested x86_64/linux. Ok for trunk and 46 branch? Thanks, David
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