On Thu, 2025-05-29 at 15:41 +0200, Aurelien Jarno wrote:
> - Add an SVE implementation of memset on aarch64.
>
> => This improves the performances of memset by up to 20% on arm64
> hardware with SVE support. This change is in trixie/sid for more than
> 2 months.
>
> - Improve generic implementation of memset on aarch64.
>
> => This improves the performances of memset by up to 24% on arm64
> hardware by avoiding branches and using overlapping store. This
> change is in trixie/sid for more than 2 months.
Unfortunately one or other of the above changes (I'm guessing the
first) is causing a build failure on arm64:
../sysdeps/aarch64/multiarch/memset.c: In function ‘select_memset_ifunc’:
../sysdeps/aarch64/multiarch/memset.c:52:11: error: ‘prefer_sve_ifuncs’
undeclared (first use in this function)
52 | if (prefer_sve_ifuncs && zva_size == 64)
| ^~~~~~~~~~~~~~~~~
../sysdeps/aarch64/multiarch/memset.c:52:11: note: each undeclared identifier
is reported only once for each function it appears in
Regards,
Adam
