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| author | Matthew Wahab <matthew.wahab@arm.com> | 2015-12-14 16:34:47 +0000 |
|---|---|---|
| committer | Matthew Wahab <matthew.wahab@arm.com> | 2015-12-14 16:34:47 +0000 |
| commit | 40d16a76c781bc9951d22ee359e07c6c240b81ba (patch) | |
| tree | bc4d387017eb88292b9e9ae9dbe01768365dac1a /opcodes | |
| parent | 6351190792e586b5e80fe0efa0f254b4da0b6705 (diff) | |
| download | gdb-40d16a76c781bc9951d22ee359e07c6c240b81ba.zip gdb-40d16a76c781bc9951d22ee359e07c6c240b81ba.tar.gz gdb-40d16a76c781bc9951d22ee359e07c6c240b81ba.tar.bz2 | |
[AArch64][PATCH 1/14] Support ARMv8.2 FP16 Adv.SIMD instructions.
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.
opcodes/
2015-12-14 Matthew Wahab <matthew.wahab@arm.com>
* aarch64-tbl.h (aarch64_feature_simd_f16): New.
(SIMD_F16): New.
Change-Id: Iee5a37928418f15e51dfaa927b24cafef7295e8f
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/ChangeLog | 5 | ||||
| -rw-r--r-- | opcodes/aarch64-tbl.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 7b28fdd..a2d32b3 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,5 +1,10 @@ 2015-12-14 Matthew Wahab <matthew.wahab@arm.com> + * aarch64-tbl.h (aarch64_feature_simd_f16): New. + (SIMD_F16): New. + +2015-12-14 Matthew Wahab <matthew.wahab@arm.com> + * aarch64-opc.c (aarch64_sys_reg_supported_p): Add mistakenly removed statement. (aarch64_pstatefield_supported_p): Move feature checks for AT diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h index 35f950f..a726b33 100644 --- a/opcodes/aarch64-tbl.h +++ b/opcodes/aarch64-tbl.h @@ -1303,6 +1303,8 @@ static const aarch64_feature_set aarch64_feature_v8_2 = 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); +static const aarch64_feature_set aarch64_feature_simd_f16 = + AARCH64_FEATURE (AARCH64_FEATURE_F16 | AARCH64_FEATURE_SIMD, 0); static const aarch64_feature_set aarch64_feature_stat_profile = AARCH64_FEATURE (AARCH64_FEATURE_PROFILE, 0); @@ -1315,6 +1317,7 @@ static const aarch64_feature_set aarch64_feature_stat_profile = #define LOR &aarch64_feature_lor #define RDMA &aarch64_feature_rdma #define FP_F16 &aarch64_feature_fp_f16 +#define SIMD_F16 &aarch64_feature_simd_f16 #define RAS &aarch64_feature_ras #define STAT_PROFILE &aarch64_feature_stat_profile #define ARMV8_2 &aarch64_feature_v8_2 |