re PR c++/51033 (generic vector subscript and shuffle support was not added to C++)

re PR c++/51033 (generic vector subscript and shuffle support was not added to C++)

2012-06-27  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	PR C++/51033
	* semantics.c (constexpr_call): Fix typo in comment.
	(cxx_eval_vec_perm_expr): New.
	(cxx_eval_constant_expression): Fold VEC_PERM_EXPRs.

2012-06-27  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	PR c++/51033.
	* g++.dg/torture/vshuf-16.inc: New test.
	* g++.dg/torture/vshuf-2.inc: New test.
	* g++.dg/torture/vshuf-4.inc: New test.
	* g++.dg/torture/vshuf-8.inc: New test.
	* g++.dg/torture/vshuf-main.inc: New test.
	* g++.dg/torture/vshuf-v16hi.C: New test.
	* g++.dg/torture/vshuf-v16qi.C: New test.
	* g++.dg/torture/vshuf-v2df.C: New test.
	* g++.dg/torture/vshuf-v2di.C: New test.
	* g++.dg/torture/vshuf-v2sf.C: New test.
	* g++.dg/torture/vshuf-v2si.C: New test.
	* g++.dg/torture/vshuf-v4df.C: New test.
	* g++.dg/torture/vshuf-v4di.C: New test.
	* g++.dg/torture/vshuf-v4sf.C: New test.
	* g++.dg/torture/vshuf-v4si.C: New test.
	* g++.dg/torture/vshuf-v8hi.C: New test.
	* g++.dg/torture/vshuf-v8qi.C: New test.
	* g++.dg/torture/vshuf-v8si.C: New test.

From-SVN: r189017