[PATCH] x86-64: Optimize memset for zeroing

Cristian Rodríguez crrodriguez@opensuse.org
Sun Jan 2 16:01:04 GMT 2022


On Fri, Dec 31, 2021 at 5:21 PM Noah Goldstein via Libc-alpha <
libc-alpha@sourceware.org> wrote:

>
> Any benchmark results? Is the broadcast on the critical path for any size?
>
> Also imagine the vast majority of memset zero are compile time known.
>


..and  gcc was to transform  memset foo to zero -->  foo = {};   ?
IIRC there was a bug report open about that.


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