[PATCH] AArch64: Use prefer_sve_ifuncs for SVE memset

Yury Khrustalev yury.khrustalev@arm.com
Thu Feb 27 16:49:51 GMT 2025


Hi Wilco,

On Thu, Feb 27, 2025 at 04:36:18PM +0000, Wilco Dijkstra wrote:
> 
> Use prefer_sve_ifuncs for SVE memset just like memcpy.
> 
> ---
> 
> diff --git a/sysdeps/aarch64/multiarch/memset.c b/sysdeps/aarch64/multiarch/memset.c
> index 183c334988190a96676ccdcc40d44429d5ab243d..872f39f00fb7b6fbcf8628b4b01f83db8cf8baac 100644
> --- a/sysdeps/aarch64/multiarch/memset.c
> +++ b/sysdeps/aarch64/multiarch/memset.c
> @@ -51,7 +51,7 @@ select_memset_ifunc (void)
>        if (IS_A64FX (midr) && zva_size == 256)
>  	return __memset_a64fx;
>  
> -      if (zva_size == 64)
> +      if (prefer_sve_ifuncs && zva_size == 64)
>  	return __memset_sve_zva64;
>      }
> 

LGTM.

Reviewed-by: Yury Khrustalev <yury.khrustalev@arm.com>

Thanks,
Yury



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