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[AArch64][PATCH 1/3] Support ARMv8.2 FP16 floating point instructions.

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ARMv8.2 adds 16-bit floating point operations as an optional extension
to the ARMv8 FP support. This patch set adds support for the 16-bit FP
instructions to binutils, enabling the instructions when both +fp and
+fp16 architecture extensions are enabled.

The patches in this series:
- Add a feature macro for use by the encoding/decoding mechanism.
- Adjust a utility function, used when disassembling, to support 16-bit
  floating point values.
- Add the new scalar floating-point instructions.

This patch adds the feature macro FP_F16 to the AArch64 encoding/decoding
mechanism, enabling it when both +fp and +fp16 are selected.

opcodes/
2015-11-27  Matthew Wahab  <matthew.wahab@arm.com>

	* aarch64-tbl.h (aarch64_feature_fp_f16): New.
	(FP_F16): New.

Change-Id: Ie370e43e3d77a7d54b4416b4be901b363a37f3d5
This commit is contained in:
Matthew Wahab
2015-11-27 15:47:53 +00:00
parent 64357d2e04
commit 3bd894a714
2 changed files with 8 additions and 0 deletions
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5
opcodes/ChangeLog
View File

@ -1,3 +1,8 @@
2015-11-27 Matthew Wahab <matthew.wahab@arm.com>
* aarch64-tbl.h (aarch64_feature_fp_f16): New.
(FP_F16): New.
2015-11-27 Matthew Wahab <matthew.wahab@arm.com> 2015-11-27 Matthew Wahab <matthew.wahab@arm.com>
* aarch64-asm-2.c: Regenerate. * aarch64-asm-2.c: Regenerate.

3
opcodes/aarch64-tbl.h
View File

@ -1235,6 +1235,8 @@ static const aarch64_feature_set aarch64_feature_rdma =
AARCH64_FEATURE (AARCH64_FEATURE_RDMA, 0); AARCH64_FEATURE (AARCH64_FEATURE_RDMA, 0);
static const aarch64_feature_set aarch64_feature_v8_2 = static const aarch64_feature_set aarch64_feature_v8_2 =
AARCH64_FEATURE (AARCH64_FEATURE_V8_2, 0); AARCH64_FEATURE (AARCH64_FEATURE_V8_2, 0);
static const aarch64_feature_set aarch64_feature_fp_f16 =
AARCH64_FEATURE (AARCH64_FEATURE_F16 | AARCH64_FEATURE_FP, 0);
#define CORE &aarch64_feature_v8 #define CORE &aarch64_feature_v8
#define FP &aarch64_feature_fp #define FP &aarch64_feature_fp
@ -1244,6 +1246,7 @@ static const aarch64_feature_set aarch64_feature_v8_2 =
#define LSE &aarch64_feature_lse #define LSE &aarch64_feature_lse
#define LOR &aarch64_feature_lor #define LOR &aarch64_feature_lor
#define RDMA &aarch64_feature_rdma #define RDMA &aarch64_feature_rdma
#define FP_F16 &aarch64_feature_fp_f16
#define ARMV8_2 &aarch64_feature_v8_2 #define ARMV8_2 &aarch64_feature_v8_2
struct aarch64_opcode aarch64_opcode_table[] = struct aarch64_opcode aarch64_opcode_table[] =