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Re: PowerPC: Optimized mpn functions for PowerPC64/POWER7
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Will Schmidt <will_schmidt at vnet dot ibm dot com>
- Cc: Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>, "GNU C. Library" <libc-alpha at sourceware dot org>
- Date: Tue, 3 Dec 2013 20:53:06 +0000
- Subject: Re: PowerPC: Optimized mpn functions for PowerPC64/POWER7
- Authentication-results: sourceware.org; auth=none
- References: <5278FD67 dot 3010105 at linux dot vnet dot ibm dot com> <1386103081 dot 6272 dot 66 dot camel at brimstone>
On Tue, 3 Dec 2013, Will Schmidt wrote:
> On Tue, 2013-11-05 at 12:15 -0200, Adhemerval Zanella wrote:
> > This patch add optimized __mpn_add_n/__mpn_sub_n for PowerPC64/POWER7.
> > They are originally from GMP with adjustments for GLIBC. It provides a
> > small boost for mpn_divrem.
>
> "originally from GMP" - can you clarify that a bit? From a glance, GMP
> appears to be GPL v.3. I'm unclear how that gets massaged into 2.r1
> here.
See Roland's previous comments about permission to use GMP code under the
glibc license dating from when GMP was GPLv1.
--
Joseph S. Myers
joseph@codesourcery.com