diff options
| author | Matthew Wahab <matthew.wahab@arm.com> | 2015-11-27 13:19:50 +0000 |
|---|---|---|
| committer | Matthew Wahab <matthew.wahab@arm.com> | 2015-11-27 13:19:50 +0000 |
| commit | 870181955b565b4fbbf4efcbec4a43d687703d1a (patch) | |
| tree | 64698c0f1358be3aeb3425e653fd88389b79a8f2 /include | |
| parent | b6c30ffef9f060caec6122437595f9767612b48c (diff) | |
| download | gdb-870181955b565b4fbbf4efcbec4a43d687703d1a.zip gdb-870181955b565b4fbbf4efcbec4a43d687703d1a.tar.gz gdb-870181955b565b4fbbf4efcbec4a43d687703d1a.tar.bz2 | |
[AArch64] Add feature flags and command line for ARMv8.2 FP16 support.
ARMv8.2 adds optional support for 16-bit operations to the FP and
Adv.SIMD instructions. This patch adds a feature macro for this support
with a new command line option "+fp16" to enable/disable it.
Although the command line option is added as an architecture extension,
it only affects instructions available with when +fp or +simd is
enabled. If +fp16 is specified then it will also enable +fp.
There are currently no FP16 instructions implemented in binutils, this
patch is to enable subsequent work on supporting the extension.
gas/
2015-11-27 Matthew Wahab <matthew.wahab@arm.com>
* config/tc-aarch64.c (aarch64_features): Add "fp16".
* doc/c-aarch64.texi (Architecture Extensions): Add "fp16".
include/opcode/
2015-11-27 Matthew Wahab <matthew.wahab@arm.com>
* aarch64.h (AARCH64_FEATURE_F16): New.
(AARCH64_ARCH_V8_2): Add AARCH64_FEATURE_F16 to ARMv8.2
features.
Change-Id: Id2021e0513946e16d0935c2a5b9605574cdff95a
Diffstat (limited to 'include')
| -rw-r--r-- | include/opcode/ChangeLog | 6 | ||||
| -rw-r--r-- | include/opcode/aarch64.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog index a682414..57200d6 100644 --- a/include/opcode/ChangeLog +++ b/include/opcode/ChangeLog @@ -1,3 +1,9 @@ +2015-11-27 Matthew Wahab <matthew.wahab@arm.com> + + * aarch64.h (AARCH64_FEATURE_F16): New. + (AARCH64_ARCH_V8_2): Add AARCH64_FEATURE_F16 to ARMv8.2 + features. + 2015-11-20 Matthew Wahab <matthew.wahab@arm.com> * aarch64.h (AARCH64_FEATURE_V8_1): New. diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h index 9addf40..cc16f6f 100644 --- a/include/opcode/aarch64.h +++ b/include/opcode/aarch64.h @@ -48,6 +48,7 @@ typedef uint32_t aarch64_insn; #define AARCH64_FEATURE_LOR 0x00400000 /* LOR instructions. */ #define AARCH64_FEATURE_RDMA 0x00800000 /* v8.1 SIMD instructions. */ #define AARCH64_FEATURE_V8_1 0x01000000 /* v8.1 features. */ +#define AARCH64_FEATURE_F16 0x01000000 /* v8.2 FP16 instructions. */ /* Architectures are the sum of the base and extensions. */ #define AARCH64_ARCH_V8 AARCH64_FEATURE (AARCH64_FEATURE_V8, \ @@ -63,6 +64,7 @@ typedef uint32_t aarch64_insn; | AARCH64_FEATURE_RDMA) #define AARCH64_ARCH_V8_2 AARCH64_FEATURE (AARCH64_FEATURE_V8, \ AARCH64_FEATURE_V8_2 \ + | AARCH64_FEATURE_F16 \ | AARCH64_FEATURE_FP \ | AARCH64_FEATURE_SIMD \ | AARCH64_FEATURE_LSE \ |