Add missing AArch64 NEON instrinctics for Armv8.2-a to Armv8.4-a

Add missing AArch64 NEON instrinctics for Armv8.2-a to Armv8.4-a

This patch adds the missing neon intrinsics for all 128 bit vector Integer modes for the
three-way XOR and negate and xor instructions for Arm8.2-a to Armv8.4-a.

gcc/
2018-05-21  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_eor3qv8hi): Change to
	eor3q<mode>4.
	(aarch64_bcaxqv8hi): Change to bcaxq<mode>4.
	* config/aarch64/aarch64-simd-builtins.def (veor3q_u8, veor3q_u32,
	veor3q_u64, veor3q_s8, veor3q_s16, veor3q_s32, veor3q_s64, vbcaxq_u8,
	vbcaxq_u32, vbcaxq_u64, vbcaxq_s8, vbcaxq_s16, vbcaxq_s32,
	vbcaxq_s64): New.
	* config/aarch64/arm_neon.h: Likewise.
	* config/aarch64/iterators.md (VQ_I): New.

gcc/testsuite/
2018-05-21  Tamar Christina  <tamar.christina@arm.com>

	* gcc.target/gcc.target/aarch64/sha3.h (veor3q_u8, veor3q_u32,
	veor3q_u64, veor3q_s8, veor3q_s16, veor3q_s32, veor3q_s64, vbcaxq_u8,
	vbcaxq_u32, vbcaxq_u64, vbcaxq_s8, vbcaxq_s16, vbcaxq_s32,
	vbcaxq_s64): New.
	* gcc.target/gcc.target/aarch64/sha3_1.c: Likewise.
	* gcc.target/gcc.target/aarch64/sha3_1.c: Likewise.
	* gcc.target/gcc.target/aarch64/sha3_1.c: Likewise.

From-SVN: r260435