aarch64: Add vcopy(q)__lane(q)_bf16 intrinsics

aarch64: Add vcopy(q)__lane(q)_bf16 intrinsics

gcc/ChangeLog

2020-10-20  Andrea Corallo  <andrea.corallo@arm.com>

	* config/aarch64/arm_neon.h (vcopy_lane_bf16, vcopyq_lane_bf16)
	(vcopyq_laneq_bf16, vcopy_laneq_bf16): New intrinsics.

gcc/testsuite/ChangeLog

2020-10-20  Andrea Corallo  <andrea.corallo@arm.com>

	* gcc.target/aarch64/advsimd-intrinsics/bf16_vect_copy_lane_1.c:
	New test.
	* gcc.target/aarch64/advsimd-intrinsics/vcopy_lane_bf16_indices_1.c:
	Likewise.
	* gcc.target/aarch64/advsimd-intrinsics/vcopy_lane_bf16_indices_2.c:
	Likewise.
	* gcc.target/aarch64/advsimd-intrinsics/vcopy_laneq_bf16_indices_1.c:
	Likewise.
	* gcc.target/aarch64/advsimd-intrinsics/vcopy_laneq_bf16_indices_2.c:
	Likewise.
	* gcc.target/aarch64/advsimd-intrinsics/vcopyq_lane_bf16_indices_1.c:
	Likewise.
	* gcc.target/aarch64/advsimd-intrinsics/vcopyq_lane_bf16_indices_2.c:
	Likewise.
	* gcc.target/aarch64/advsimd-intrinsics/vcopyq_laneq_bf16_indices_1.c:
	Likewise.
	* gcc.target/aarch64/advsimd-intrinsics/vcopyq_laneq_bf16_indices_2.c:
	Likewise.