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Sudakshina Das 193614f2b9 [BINUTILS, AARCH64, 2/8] Add Tag generation instructions in Memory Tagging Extension
This patch is part of the patch series to add support for ARMv8.5-A
Memory Tagging Extensions which is an optional extension to
ARMv8.5-A and is enabled using the +memtag command line option.

This patch add support to the Tag generation instructions from
MTE. These are the following instructions added in this patch:
- IRG <Xd|SP>, <Xn|SP>{, Xm}
- ADDG <Xd|SP>, <Xn|SP>, #<uimm1>. #<uimm2>
- SUBG <Xd|SP>, <Xn|SP>, #<uimm1>. #<uimm2>
- GMI <Xd>, <Xn|SP>, <Xm>

where
<Xd|SP> : Is the 64-bit destination GPR or Stack pointer.
<Xn|SP> : Is the 64-bit source GPR or Stack pointer.
<uimm6> : Is the unsigned immediate, a multiple of 16
in the range 0 to 1008.
<uimm4> : Is the unsigned immediate, in the range 0 to 15.

*** include/ChangeLog ***

2018-11-12  Sudakshina Das  <sudi.das@arm.com>

	* opcode/aarch64.h (aarch64_opnd): Add
	AARCH64_OPND_UIMM4_ADDG and AARCH64_OPND_UIMM10 as new enums.

*** opcodes/ChangeLog ***

2018-11-12  Sudakshina Das  <sudi.das@arm.com>

	* aarch64-opc.h (aarch64_field_kind): New FLD_imm4_3.
	(OPD_F_SHIFT_BY_4, operand_need_shift_by_four): New.
	* aarch64-opc.c (fields): Add entry for imm4_3.
	(operand_general_constraint_met_p): Add cases for
	AARCH64_OPND_UIMM4_ADDG and AARCH64_OPND_UIMM10.
	(aarch64_print_operand): Likewise.
	* aarch64-tbl.h (QL_ADDG): New.
	(aarch64_opcode_table): Add addg, subg, irg and gmi.
	(AARCH64_OPERANDS): Define UIMM4_ADDG and UIMM10.
	* aarch64-asm.c (aarch64_ins_imm): Add case for
	operand_need_shift_by_four.
	* aarch64-asm-2.c: Regenerated.
	* aarch64-dis-2.c: Regenerated.
	* aarch64-opc-2.c: Regenerated.

*** gas/ChangeLog ***

2018-11-12  Sudakshina Das  <sudi.das@arm.com>

	* config/tc-aarch64.c (parse_operands): Add switch case for
	AARCH64_OPND_UIMM4_ADDG and AARCH64_OPND_UIMM10.
	* testsuite/gas/aarch64/armv8_5-a-memtag.s: New.
	* testsuite/gas/aarch64/armv8_5-a-memtag.d: Likewise.
	* testsuite/gas/aarch64/illegal-memtag.s: Likewise.
	* testsuite/gas/aarch64/illegal-memtag.l: Likewise.
	* testsuite/gas/aarch64/illegal-memtag.d: Likewise.
2018-11-12 12:59:22 +00:00
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		   README for GNU development tools

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