[AArch64][PATCH 1/14] Support ARMv8.2 FP16 Adv.SIMD instructions.

[Matthew Wahab]

Hello,

ARMv8.2 adds 16-bit floating point operations as an optional extension
to floating point and Adv.SIMD support. This patch set adds the 16-bit
Adv.SIMD vector and scalar instructions to binutils, making them
available when both +simd and +fp16 architecture extensions are enabled.
The series also adds support for a new vector type, 2H, used by the FP16
scalar pairwise instructions.

The patches in this series:
- Add a FP16 Adv.SIMD feature macro for use by the encoding/decoding
   routines.
- Add FP16 instructions in the group Vector Three Register Same.
- Add FP16 instructions in the group Scalar Three Register Same.
- Add FP16 instructions in the group Vector Two Register Misc.
- Add FP16 instructions in the group Scalar Two Register Misc.
- Add FP16 instructions in the group Vector Indexed Element.
- Add FP16 instructions in the group Scalar Indexed Element.
- Add FP16 instructions in the group Adv.SIMD Across Lanes.
- Add FP16 instructions in the group Adv.SIMD Modified Immediate.
- Rework some code for handling vector types to weaken its assumptions
   about available vector-types.
- Add support for the 2H vector type.
- Add FP16 instructions in the group Adv.SIMD Scalar Pairwise.
- Add FP16 instructions in the group Adv.SIMD Shift By Immediate.
- Add a FP16 instructions in the group Adv.SIMD Scalar Shift By
   Immediate.

This patch adds the feature macro SIMD_F16 to the AArch64
encoding/decoding routines. It is used to decide when the new
instructions are available to the assembler and is true when both +simd
and +fp16 are selected.

Tested the series for aarch64-none-linux-gnu with cross-compiled
check-binutils and check-gas.

Ok for trunk?
Matthew

opcodes/
2015-12-10  Matthew Wahab  <matthew.wahab@arm.com>

	* aarch64-tbl.h (aarch64_feature_simd_f16): New.
	(SIMD_F16): New.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-AArch64-Add-FP16-SIMD-feature-flag.patch
Type: text/x-patch
Size: 1209 bytes
Desc: not available
URL: <https://sourceware.org/pipermail/binutils/attachments/20151211/a572644a/attachment.bin>