[AArch64][PATCH 2/14] Support ARMv8.2 FP16 Vector Three Same instructions.

[AArch64][PATCH 2/14] Support ARMv8.2 FP16 Vector Three Same instructions.

ARMv8.2 adds 16-bit floating point operations as an optional extension
to floating point and Adv.SIMD support. This patch adds FP16
instructions to the group Vector Three Register Same, making them
available when +simd+fp16 is enabled.

The instructions added are: FMAXNM, FMAXNMP, FNMINNM, FMINNMP, FMLA,
FMLS, FADD, FADDP, FSUB, FABD, FMULX, FMUL, FCMEQ, FCMGE, FCMGT, FACGE,
FACGT, FMAX, FMAXP, FMIN, FMINP, FRECPS, FDIV and FRSQRTS.

The general form for these instructions is
  <OP> <Vd>.<T>, <Vs>.<T>, <Vm>.<T>
  where T is 4h or 8h.

gas/testsuite/
2015-12-14  Matthew Wahab  <matthew.wahab@arm.com>

	* gas/aarch64/advsimd-fp16.d: New.
	* gas/aarch64/advsimd-fp16.s: New.

opcodes/
2015-12-14  Matthew Wahab  <matthew.wahab@arm.com>

	* aarch64-asm-2.c: Regenerate.
	* aarch64-dis-2.c: Regenerate.
	* aarch64-opc-2.c: Regenerate.
	* aarch64-tbl.h (QL_V3SAMEH): New.
	(aarch64_opcode_table): Add fp16 versions of fmaxnm, fmla, fadd,
	fmulx, fcmeq, fmax, frecps, fminnm, fmls, fsub, fmin, frsqrts,
	fmaxnmp, faddp, fmul, fcmge, facge, fmaxp, fdiv, fminnmp, fabd,
	fcmgt, facgt and fminp to the vector three same group.

Change-Id: I3f1c5fe82ca73f7a17fe5329cf2b0de03c94328c