Date: Wed, 7 Jun 2023 11:01:29 -0700 From: John Baldwin <jhb@FreeBSD.org> To: Dmitry Chagin <dchagin@freebsd.org>, Alexey Dokuchaev <danfe@freebsd.org> Cc: Jessica Clarke <jrtc27@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org>, "dev-commits-src-all@freebsd.org" <dev-commits-src-all@freebsd.org>, "dev-commits-src-main@freebsd.org" <dev-commits-src-main@freebsd.org> Subject: Re: git: 1b0d96f3c43a - main - xregs_sig: Finish renaming simd to xregs before adding avx Message-ID: <59a6e27d-4844-204a-215a-28ccec683f6d@FreeBSD.org> In-Reply-To: <ZIBBXMJAbR93kwLI@heemeyer.club> References: <202306031713.353HDY7D036200@gitrepo.freebsd.org> <FF273FCA-C081-4AF6-9D75-1AD86EAE68AE@freebsd.org> <ZHuLcBsQmp-Yw649@heemeyer.club> <3F83B6B8-7A16-488B-9594-50A7426931F5@freebsd.org> <ZHuUiJVoTqWwZ1Yo@heemeyer.club> <ZH/iypNHPIvQY%2BJE@FreeBSD.org> <ZIBBXMJAbR93kwLI@heemeyer.club>
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On 6/7/23 1:35 AM, Dmitry Chagin wrote: > On Wed, Jun 07, 2023 at 01:52:10AM +0000, Alexey Dokuchaev wrote: >> On Sat, Jun 03, 2023 at 10:29:12PM +0300, Dmitry Chagin wrote: >>> On Sat, Jun 03, 2023 at 07:57:03PM +0100, Jessica Clarke wrote: >>>> ... >>>> But the AArch64 registers are called x0 through x30. They are x >>>> registers. So calling the SIMD registers X registers is both incorrect >>>> and highly confusing. It is not general, it is specific to x86's notion >>>> of SIMD. >>> >>> Naming is hard (c) especially for non-native :), >>> I just need an avx registers test to fix golang issues in the Linuxulator. >>> Feel free to join D40410, D40384, propose you naming variant, may be >>> x->ext or ngprs >> >> What was wrong with SIMD (simd)? > > Strictly speaking test is about the fact that signal context properly > saves/restores machine context including gprs, simd registers, on x86 > xsave area including many things, whch can be added later For example, PKRU on x86 is a non-simd register that this test could be verifying. -- John Baldwin
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