[PATCH, BINUTILS, AARCH64, 2/9] Add Data procoessing instructions for ARMv8.5-A

[Sudakshina Das <sudi dot das at arm dot com>]

Hi

This patch is part of the patch series to add support for ARMv8.5-A
extensions.
(https://developer.arm.com/products/architecture/cpu-architecture/a-profile/docs/ddi0596/a/a64-base-instructions-alphabetic-order)

This patch adds the data processing instructions that are new to
ARMv8.5-A.

1) There are 2 instructions: xaflag, axflag, that are added
to manipulate the states of the flag and are used to convert
between the Arm representation and the fcmp representation.

2) The other instructions are rounding instructions which have
8 versions based on whether the floating-point number is a
Single-Precision or Double-Precision number, whether the
target integer is a 32-bit or 64-bit integer and whether the
rounding mode is the ambient rounding mode or to zero. Each of
these instruction is available in both Scalar and Vector forms.

Since both 1) and 2) have separate identification mechanism and
it is permissible that a ARMv8.4 compliant implementation may include
any arbitrary subset of the ARMv8.5 features unless otherwise
specified, new feature bits are added.

Testing done: Builds and reg tests all pass on aarch64-none-linux-gnu
and aarch64-none-elf. Added new test.

Thanks
Sudi
PS. I do not have commit access so if OK can someone apply for me?
Also the patch was too big to attach due to the regenerated files.

*** include/ChangeLog ***

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

	* opcode/aarch64.h (AARCH64_FEATURE_FLAGMANIP): New.
	(AARCH64_FEATURE_FRINTTS): New.
	(AARCH64_ARCH_V8_5): Add both by default.

*** opcodes/ChangeLog ***

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

	* aarch64-tbl.h (aarch64_feature_flagmanip): New.
	(aarch64_feature_frintts): New.
	(FLAGMANIP, FRINTTS): New.
	(aarch64_opcode_table): Add entries for xaflag, axflag
	and frint[32,64][x,z] instructions.
	* aarch64-asm-2.c: Regenerate.
	* aarch64-dis-2.c: Regenerate.
	* aarch64-opc-2.c: Regenerate.

*** gas/ChangeLog ***

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

	* testsuite/gas/aarch64/armv8_5-a-dp.s: New.
	* testsuite/gas/aarch64/armv8_5-a-dp.d: New.

Attachment: patch2.tar.gz
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