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Date: Fri, 23 Jun 2017 15:35:33 -0400
From: Rich Felker <>
Subject: Re: [PATCH] powerpc64le: Add single instruction math functions

On Wed, Jun 21, 2017 at 10:53:13AM -0400, David Edelsohn wrote:
> The following two patches are a start at single instruction math
> functions for PowerPC64 architecture.  Although PPC64LE Linux and
> ELFv2 ABI require Power8 as the minimum architecture, I have added
> guards that fallback to C code for earlier architectures.

Indeed, musl uses the ELFv2 ABI (minus its gratuitous mandate of
minimum ISA level) for both little and big endian powerpc64, and I
think we have users of both (people running it on old powerbooks,

Am I reading correctly that sqrt, fma, and fabs are available even in
the lowest powerpc64 ISA, and don't need preprocessor conditionals?


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