2012-12-11  Marc Glisse  <marc.glisse@inria.fr>

	PR c++/53094
cp/
	* tree.c (cp_tree_equal): Handle VECTOR_CST.
	* semantics.c (cxx_eval_bare_aggregate): Protect a dereference.
	Handle VECTOR_CST.
testsuite/
	* g++.dg/cpp0x/constexpr-53094-1.C: New testcase.
	* g++.dg/cpp0x/constexpr-53094-2.C: Likewise.
	* g++.dg/cpp0x/constexpr-53094-3.C: Likewise.

From-SVN: r194421