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[PATCH, BINUTILS, AARCH64, 3/8] Add Pointer Arithmetic instructions in Memory Tagging Extension

Sudakshina Das Sudi.Das@arm.com
Fri Nov 2 16:09:00 GMT 2018 
Hi Richard

On 30/10/18 09:46, Richard Earnshaw (lists) wrote:
> On 09/10/2018 18:24, Sudakshina Das wrote:
>> Hi
>>
>> This patch is part of the patch series to add support for ARMv8.5-A
>> Memory Tagging Extensions.
>> (https://developer.arm.com/products/architecture/cpu-architecture/a-profile/exploration-tools)
>> Memory Tagging Extension (MTE) is an optional extension to
>> ARMv8.5-A and is enabled using the +memtag command line option.
>>
>> This patch add support to the Pointer Arithmetic instructions from
>> MTE. These are the following instructions added in this patch:
>> - SUBP <Xd>, <Xn|SP>, <Xm|SP>
>> - SUBPS <Xd>, <Xn|SP>, <Xm|SP>
>> - CMPP <Xn|SP>, <Xm|SP>
>> where CMPP is an alias to SUBPS XZR, <Xn|SP>, <Xm|SP>
>>
>> where
>> <Xd> : Is the 64-bit destination GPR.
>> <Xn|SP> : Is the 64-bit first source GPR or Stack pointer.
>> <Xm|SP> : Is the 64-bit second source GPR or Stack pointer.
>>
>> Testing done: Builds and reg tests all pass on aarch64-none-linux-gnu.
>> Added test.
>>
>> Is this ok for trunk?
>>
>> Thanks
>> Sudi
>>
>> *** opcodes/ChangeLog ***
>>
>> 2018-xx-xx  Sudakshina Das  <sudi.das@arm.com>
>>
>> 	* aarch64-tbl.h (aarch64_opcode_table): Add subp, subps and
>> 	cmpp.
>> 	* aarch64-asm-2.c: Regenarated.
>> 	* aarch64-dis-2.c: Regenerated.
>> 	* aarch64-opc-2.c: Regenerated.
>>
>> *** gas/ChangeLog ***
>>
>> 2018-xx-xx  Sudakshina Das  <sudi.das@arm.com>
>>
>> 	* testsuite/gas/aarch64/armv8_5-a-mte.s: Add tests for subp,
>> 	subps and cmpp.
>> 	* testsuite/gas/aarch64/armv8_5-a-mte.d: Likewise.
>>
>>
> 
> OK with the MTE/MEMTAG issue fixed.
> 
> R. >
Adding new patch with test case changes.

*** opcodes/ChangeLog ***

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

	* aarch64-tbl.h (aarch64_opcode_table): Add subp, subps and
	cmpp.
	* aarch64-asm-2.c: Regenerated.
	* aarch64-dis-2.c: Regenerated.
	* aarch64-opc-2.c: Regenerated.

*** gas/ChangeLog ***

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

	* testsuite/gas/aarch64/armv8_5-a-memtag.s: Add tests for subp,
	subps and cmpp.
	* testsuite/gas/aarch64/armv8_5-a-memtag.d: Likewise.
	* testsuite/gas/aarch64/illegal-memtag.s: Likewise.
	* testsuite/gas/aarch64/illegal-memtag.l: Likewise.

Thanks
Sudi



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