[Morello] altbase: LDR/STR

[Morello] altbase: LDR/STR

gas/ChangeLog:

2020-10-20  Siddhesh Poyarekar  <siddesh.poyarekar@arm.com>

	* config/tc-aarch64.c (parse_operands): Add Rsz,
	CAPADDR_REGOFF, CAPADDR_UIMM9.
	* testsuite/gas/aarch64/morello_ldst-c64.d: Add tests.
	* testsuite/gas/aarch64/morello_ldst.d: Likewise.
	* testsuite/gas/aarch64/morello_ldst.s: Likewise.

include/ChangeLog:

2020-10-20  Siddhesh Poyarekar  <siddesh.poyarekar@arm.com>

	* opcode/aarch64.c (aarch64.opnd): add Rsz, CAPADDR_REGOFF,
	CAPADDR_UIMM9.
	(aarch64_insn_class): Add ldst_altbase.

opcodes/ChangeLog:

2020-10-20  Siddhesh Poyarekar  <siddesh.poyarekar@arm.com>

	* aarch64-asm.c (aarch64_ins_regsz): New function.
	(aarch64_ins_ft): Support altbase loads.
	(aarch64_ins_addr_uimm12): Rename to aarch64_ins_addr_uimm.
	* aarch64-asm.h: (ins_regsz): New function declaration.
	(ins_addr_uimm12): Rename to ins_addr_uimm.
	* aarch64-dis.c (aarch64_ext_regsz): New function.
	(aarch64_ext_ft): Support altbase loads.
	(aarch64_ext_addr_uimm12): Rename to aarch64_ext_addr_uimm.
	* aarch64-dis.h: (ext_regsz): New function declaration.
	(dis_addr_uimm12): Rename to dis_addr_uimm.
	* aarch64-opc.c (fields): Add altbase_sf.
	(operand_general_constraint_met_p): Check constraints for
	ldst_altbase, CAPADDR_REGOFF, CAPADDR_UIMM9.
	(aarch64_print_operand): Print Rsz, CAPADDR_REGOFF,
	CAPADDR_UIMM9.
	* aarch64-opc.h (aarch64_field_kind): Add FLD_altbase_sf.
	* aarch64-tbl.h (QL2_A64C_R_CAPADDR, QL2_A64C_FP_CAPADDR): New
	macro.
	(aarch64_opcode_table): New instructions.
	(AARCH64_OPERANDS): New operands.
	* aarch64-asm-2.c: Regenerate.
	* aarch64-dis-2.c: Regenerate.
	* aarch64-opc-2.c: Regenerate.