[PATCH][Binutils]AArch64 Enable FP16 by default for Armv9-A.

[Richard Earnshaw]

On 16/05/2022 17:10, Tamar Christina via Binutils wrote:
> Hi All,
> 
> In Armv9-A SVE is mandatory, and for SVE FP16 is mandatory.  This fixes a disconnect
> between GCC and binutils where GCC has FP16 on by default and gas doesn't.
> 
> build on native hardware and regtested on aarch64-none-linux-gnu and no issues.
> 
> Ok for master? and for backport to binutils-2.38?
> 

OK for master.  I think you'll need Nick to approve a backport, though. 
  I would recommend that.

R.

> Thanks,
> Tamar
> 
> include/ChangeLog:
> 
> 2022-05-16  Tamar Christina  <tamar.christina@arm.com>
> 
> 	* opcode/aarch64.h (AARCH64_ARCH_V9_FEATURES): Add AARCH64_FEATURE_F16.
> 
> --- inline copy of patch --
> diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h
> index a4912930c8f1e564bec6ec46a649ac1205093bd1..8fe27900cba3e897880a3966cc2a17e89dbdf018 100644
> --- a/include/opcode/aarch64.h
> +++ b/include/opcode/aarch64.h
> @@ -140,6 +140,7 @@ typedef uint32_t aarch64_insn;
>   					 | AARCH64_FEATURE_HBC)
>   
>   #define AARCH64_ARCH_V9_FEATURES	(AARCH64_FEATURE_V9		\
> +					 | AARCH64_FEATURE_F16          \
>   					 | AARCH64_FEATURE_SVE		\
>   					 | AARCH64_FEATURE_SVE2)
>   #define AARCH64_ARCH_V9_1_FEATURES	(AARCH64_ARCH_V8_6_FEATURES)
> 
> 
> 
>