test/CodeGenCXX/virtual-implicit-copy-assignment.cpp

// RUN: clang-cc -emit-llvm -o - %s | FileCheck %s

struct D;
struct B {
 virtual D& operator = (const D&);
};
struct D : B { D(); virtual void a(); };
void D::a() {}

// CHECK: @_ZTV1D = {{.*}} @_ZN1DaSERKS_