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Date: Fri, 22 Sep 2023 11:04:08 -0700
From: enh <enh@...gle.com>
To: enh <enh@...gle.com>, musl@...ts.openwall.com, vincenzo.innocente@...n.ch,
riemannic@...il.com
Subject: Re: Accuracy of Mathematical Functions
oh, interesting... i see a lot of the files in the arm directory have
freebsd in the name but, yes, even there the majority seems to be
home-grown code.
On Thu, Sep 21, 2023 at 11:44 PM Szabolcs Nagy <nsz@...t70.net> wrote:
>
> * enh <enh@...gle.com> [2023-09-21 09:30:10 -0700]:
> > isn't Apple's libm (like Android's) largely the FreeBSD libm? are the
> > Apple vs FreeBSD differences you found really FreeBSD/arm64 vs
> > FreeBSD/x86-64 differences? (or differences between older and newer
> > FreeBSD libms?)
>
> freebsd is mostly c so behaves the same on x86 and arm
> (fma usage can be different but that's about it)
>
> in the apple libm neither x86 nor arm version looks freebsd based
> (and this is old, they likely updated it for aarch64)
>
> https://opensource.apple.com/source/Libm/Libm-2026/Source/
>
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