[PATCH] AArch64: Check for SVE in ifuncs [BZ #28744]

[Szabolcs Nagy]

The 01/05/2022 16:31, Wilco Dijkstra via Libc-alpha wrote:
> Add a check for SVE in the A64FX ifuncs for memcpy, memset and memmove.
> This fixes BZ #28744, OK for commit?
> 

This is OK, thanks.

> ---
> diff --git a/sysdeps/aarch64/multiarch/memcpy.c b/sysdeps/aarch64/multiarch/memcpy.c
> index 7dac7b76e475ba07db7b3bee58b642921b51b654..a476dd548fd04fddcd0b39cc3263866769bb309a 100644
> --- a/sysdeps/aarch64/multiarch/memcpy.c
> +++ b/sysdeps/aarch64/multiarch/memcpy.c
> @@ -48,7 +48,7 @@ libc_ifunc (__libc_memcpy,
>  		      || IS_NEOVERSE_V1 (midr)
>  		      ? __memcpy_simd
>  # if HAVE_AARCH64_SVE_ASM
> -		     : (IS_A64FX (midr)
> +		     : (IS_A64FX (midr) && sve
>  			? __memcpy_a64fx
>  			: __memcpy_generic))))));
>  # else
> diff --git a/sysdeps/aarch64/multiarch/memmove.c b/sysdeps/aarch64/multiarch/memmove.c
> index 48f8e4616644a0f29718357687445ed4002b726c..4f7d7eedfd943d1b6a54e90dc973406b30cc8db9 100644
> --- a/sysdeps/aarch64/multiarch/memmove.c
> +++ b/sysdeps/aarch64/multiarch/memmove.c
> @@ -48,7 +48,7 @@ libc_ifunc (__libc_memmove,
>  		      || IS_NEOVERSE_V1 (midr)
>  		      ? __memmove_simd
>  # if HAVE_AARCH64_SVE_ASM
> -		     : (IS_A64FX (midr)
> +		     : (IS_A64FX (midr) && sve
>  			? __memmove_a64fx
>  			: __memmove_generic))))));
>  # else
> diff --git a/sysdeps/aarch64/multiarch/memset.c b/sysdeps/aarch64/multiarch/memset.c
> index 3692b079e3bfaa4fa03dda7f5c2bef3486e8e05f..c4008f346b34ec5b4b767a1433cf72692572a714 100644
> --- a/sysdeps/aarch64/multiarch/memset.c
> +++ b/sysdeps/aarch64/multiarch/memset.c
> @@ -44,7 +44,7 @@ libc_ifunc (__libc_memset,
>  	      : (IS_EMAG (midr) && zva_size == 64
>  		? __memset_emag
>  # if HAVE_AARCH64_SVE_ASM
> -		: (IS_A64FX (midr)
> +		: (IS_A64FX (midr) && sve
>  		  ? __memset_a64fx
>  		  : __memset_generic))));
>  # else
>