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Re: [PATCH 1/14] [x86_64] Vector math functions (vector cos)
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Andrew Senkevich <andrew dot n dot senkevich at gmail dot com>
- Cc: libc-alpha <libc-alpha at sourceware dot org>
- Date: Wed, 20 May 2015 15:30:19 +0000
- Subject: Re: [PATCH 1/14] [x86_64] Vector math functions (vector cos)
- Authentication-results: sourceware.org; auth=none
- References: <CAMXFM3t+v7zYEmvWQxV9aRmJB6Ag2hQgQ56cZJTDy=siRBszDw at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1504301541120 dot 23221 at digraph dot polyomino dot org dot uk> <CAMXFM3sVJ6vkEF7RqrrHczJSdF_-gr9Xog-zFcG3rjhOqgqjDw at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1505151616460 dot 21212 at digraph dot polyomino dot org dot uk> <CAMXFM3tfZKDJtjhJ1d=LQ=WALJBBx5ABJXoS5ycBORii78FkEg at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1505181711240 dot 20209 at digraph dot polyomino dot org dot uk> <CAMXFM3vG=5KVLuG4HJ6StDp13YcpeRLqPkd=3BJhGt1mu5AWPA at mail dot gmail dot com>
On Tue, 19 May 2015, Andrew Senkevich wrote:
> > appropriate comments saying what operations are being encoded). You could
> > probably write an assembler macro to do the encoding (though if the
> > offsets in question don't all have the same length when encoded as
> > sleb128, that complicates the macro a bit).
>
> Where to put that macro, in sysdeps/x86_64/sysdep.h?
That might be plausible, depending on what the macro looks like (whether
it's something generic for any x86_64 code saving a register on the stack
when CFA is something else, or more specific to this libmvec code).
--
Joseph S. Myers
joseph@codesourcery.com