[AArch64][1/2] Add support INS (element) instruction to copy lanes between vectors

[AArch64][1/2] Add support INS (element) instruction to copy lanes between vectors

2016-06-30  James Greenhalgh  <james.greenhalgh@arm.com>
            Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (*aarch64_simd_vec_copy_lane<mode>):
	New define_insn.
	(*aarch64_simd_vec_copy_lane_<vswap_width_name><mode>): Likewise.

	* gcc.target/aarch64/vget_set_lane_1.c: New test.

Co-Authored-By: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
From-SVN: r237882