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Message-ID: <20210605220514.GH13220@brightrain.aerifal.cx>
Date: Sat, 5 Jun 2021 18:05:14 -0400
From: Rich Felker <dalias@...c.org>
To: Arnd Bergmann <arnd@...nel.org>
Cc: musl@...ts.openwall.com
Subject: Re: Adding PowerPC SPE support
On Sat, Jun 05, 2021 at 11:15:04PM +0200, Arnd Bergmann wrote:
> On Sat, Jun 5, 2021 at 7:12 PM Rich Felker <dalias@...c.org> wrote:
> >
> > When the soft-float ABI for PowerPC was added in 2016 (commit
> > 5a92dd95c77cee81755f1a441ae0b71e3ae2bcdb, mail thread "[PATCH v3] Add
> > PowerPC soft-float support") with Freescale cpus having the
> > alternative SPE FPU as the main use case, I noted that we could
> > probably support hard float on them, but that it would involve
> > determining some difficult ABI constraints. I'm now revisiting adding
> > this support.
>
> Note that regardless of the technical issues, there is a practical problem
> in the long run, since gcc-8.5 was the last release with powerpcspe
> support, and at some point in the future everyone will move to gcc-9
> or higher.
Yes, llvm has added it though and presumably ppl who want it will just
use clang or stick with old gcc (which makes me sad, but that's how it
is).
Rich
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