[binutils][aarch64] Matrix Multiply extension enablement [8/X]

[binutils][aarch64] Matrix Multiply extension enablement [8/X]

Hi,

This patch is part of a series that adds support for Armv8.6-A
(Matrix Multiply and BFloat16 extensions) to binutils.

This patch introduces the Matrix Multiply (Int8, F32, F64) extensions
to the aarch64 backend.

The following instructions are added: {s/u}mmla, usmmla, {us/su}dot,
fmmla, ld1rob, ld1roh, d1row, ld1rod, uzip{1/2}, trn{1/2}.

Committed on behalf of Mihail Ionescu.

gas/ChangeLog:

2019-11-07  Mihail Ionescu  <mihail.ionescu@arm.com>

	* config/tc-aarch64.c: Add new arch fetures to suppport the mm extension.
	(parse_operands): Add new operand.
	* testsuite/gas/aarch64/i8mm.s: New test.
	* testsuite/gas/aarch64/i8mm.d: New test.
	* testsuite/gas/aarch64/f32mm.s: New test.
	* testsuite/gas/aarch64/f32mm.d: New test.
	* testsuite/gas/aarch64/f64mm.s: New test.
	* testsuite/gas/aarch64/f64mm.d: New test.
	* testsuite/gas/aarch64/sve-movprfx-mm.s: New test.
	* testsuite/gas/aarch64/sve-movprfx-mm.d: New test.

include/ChangeLog:

2019-11-07  Mihail Ionescu  <mihail.ionescu@arm.com>

	* opcode/aarch64.h (AARCH64_FEATURE_I8MM): New.
	(AARCH64_FEATURE_F32MM): New.
	(AARCH64_FEATURE_F64MM): New.
	(AARCH64_OPND_SVE_ADDR_RI_S4x32): New.
	(enum aarch64_insn_class): Add new instruction class "aarch64_misc" for
	instructions that do not require special handling.

opcodes/ChangeLog:

2019-11-07  Mihail Ionescu  <mihail.ionescu@arm.com>

	* aarch64-tbl.h (aarch64_feature_i8mm_sve, aarch64_feature_f32mm_sve,
	aarch64_feature_f64mm_sve, aarch64_feature_i8mm, aarch64_feature_f32mm,
	aarch64_feature_f64mm): New feature sets.
	(INT8MATMUL_INSN, F64MATMUL_SVE_INSN, F64MATMUL_INSN,
	F32MATMUL_SVE_INSN, F32MATMUL_INSN): New macros to define matrix multiply
	instructions.
	(I8MM_SVE, F32MM_SVE, F64MM_SVE, I8MM, F32MM, F64MM): New feature set
	macros.
	(QL_MMLA64, OP_SVE_SBB): New qualifiers.
	(OP_SVE_QQQ): New qualifier.
	(INT8MATMUL_SVE_INSNC, F64MATMUL_SVE_INSNC,
	F32MATMUL_SVE_INSNC): New feature set for bfloat16 instructions to support
	the movprfx constraint.
	(aarch64_opcode_table): Support for SVE_ADDR_RI_S4x32.
	(aarch64_opcode_table): Define new instructions smmla,
	ummla, usmmla, usdot, sudot, fmmla, ld1rob, ld1roh, ld1row, ld1rod
	uzip{1/2}, trn{1/2}.
	* aarch64-opc.c (operand_general_constraint_met_p): Handle
	AARCH64_OPND_SVE_ADDR_RI_S4x32.
	(aarch64_print_operand): Handle AARCH64_OPND_SVE_ADDR_RI_S4x32.
	* aarch64-dis-2.c (aarch64_opcode_lookup_1, aarch64_find_next_opcode):
	Account for new instructions.
	* opcodes/aarch64-asm-2.c (aarch64_insert_operand): Support the new
	S4x32 operand.
	* aarch64-opc-2.c (aarch64_operands): Support the new S4x32 operand.

Regression tested on arm-none-eabi.

Is it ok for trunk?

Regards,
Mihail