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Message-ID: <20181026042829.GB28637@voyager>
Date: Fri, 26 Oct 2018 06:28:29 +0200
From: Markus Wichmann <nullplan@....net>
To: musl@...ts.openwall.com
Subject: Re: [PATCH] PPC64 IEEE128 bit FP support

On Thu, Oct 25, 2018 at 03:12:51PM -0400, David Edelsohn wrote:
> The IBM Power9 processor adds support for IEEE 754 quad precision 128
> binary floating point.  The attached patch from my colleague should
> enable the basic support.  musl never has supported the IBM long
> double floating point format.  The patch only enables musl long double
> support when built with and used with a toolchain that enables IEEE
> 128 bit FP.
> 
> Any suggestions on how to transition this support in musl?
> 
> Thanks, David
> 
> P.S. A Power9 system now is available in the GNU Compile Farm.


Now you just need to look through all the maths code to find all the
places that need changing. __floatscan() comes to mind immediately. And
I don't know if any of the libm functions needs adjustment for this new
format.

Ciao,
Markus

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