From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: [PATCHES] Add vsearch.
Date: Thu, 01 Oct 2015 16:05:53 +0200
Message-ID: <87612qof9a.fsf@gnu.org>
References: <560B14F2.7010103@uq.edu.au>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:46557)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1ZheUo-0006Mr-8f
	for guix-devel@gnu.org; Thu, 01 Oct 2015 10:06:07 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1ZheUi-0006wP-D9
	for guix-devel@gnu.org; Thu, 01 Oct 2015 10:06:06 -0400
In-Reply-To: <560B14F2.7010103@uq.edu.au> (Ben Woodcroft's message of "Wed, 30
	Sep 2015 08:47:14 +1000")
List-Id: "Development of GNU Guix and the GNU System distribution."
	<guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guix-devel>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
Sender: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
To: Ben Woodcroft <b.woodcroft@uq.edu.au>
Cc: "guix-devel@gnu.org" <guix-devel@gnu.org>

Vsearch fails to build on platforms other than x86_64 (see
<http://hydra.gnu.org/build/703292/nixlog/2/raw>):

--8<---------------cut here---------------start------------->8---
In file included from /gnu/store/r0p8d0a3n2zlkj1l5a9xv368yhbgc5bh-gcc-4.9.3=
-lib/lib/gcc/i686-unknown-linux-gnu/4.9.3/include/xmmintrin.h:1258:0,
                 from /gnu/store/r0p8d0a3n2zlkj1l5a9xv368yhbgc5bh-gcc-4.9.3=
-lib/lib/gcc/i686-unknown-linux-gnu/4.9.3/include/x86intrin.h:31,
                 from vsearch.h:69,
                 from align_simd.cc:61:
/gnu/store/r0p8d0a3n2zlkj1l5a9xv368yhbgc5bh-gcc-4.9.3-lib/lib/gcc/i686-unkn=
own-linux-gnu/4.9.3/include/emmintrin.h:686:1: error: inlining failed in ca=
ll to always_inline =C3=83=C2=A2=C3=82=E2=82=AC=C3=82=CB=9C__m128i _mm_load=
_si128(const __m128i*)=C3=83=C2=A2=C3=82=E2=82=AC=C3=82=E2=84=A2: target sp=
ecific option mismatch
 _mm_load_si128 (__m128i const *__P)
 ^
align_simd.cc:204:71: error: called from here
       xmm1  =3D _mm_load_si128((__m128i*)(score_matrix_word + d[1] + i));
--8<---------------cut here---------------end--------------->8---

My impression is that the code unconditionally uses SSE, meaning that it
works only on x86_64.

Could you investigate a bit?  If that is the case, could you send a
patch that adds:

  (supported-platforms '("x86_64-linux"))

with a comment explaining why?

TIA,
Ludo=E2=80=99.