From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id EAEE6385EC54; Fri, 24 Jul 2020 08:55:03 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EAEE6385EC54
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1595580903;
 bh=5cm/5agz+o3Nmk4OiuZNAE48UdbMLqrrx4bkq3fcEt0=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=H4WeAPJD8sSbCU1RoOvowONgLwvqWgpZxkbIqoLz9zOmsZqChH8g1Ey5f5YpsFQny
 TWAeoanbJQ5pTUU02/aID75SYV5pJwZAJu2YAKIvXIfyAtOgiNKoIOUAjIZOFsfjn1
 ZPu5u/nCOgRN6wLWuxRHFBsLgzNs/VnlAQ3AogV0=
From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/96306] gcn libgomp build broken after "libomp: Add
 omp_depend_kind to omp_lib.{f90,h}"
Date: Fri, 24 Jul 2020 08:55:03 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: openacc, openmp
X-Bugzilla-Severity: normal
X-Bugzilla-Who: jakub at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-96306-4-MlMTgCyM4G@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-96306-4@http.gcc.gnu.org/bugzilla/>
References: <bug-96306-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <http://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <http://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Fri, 24 Jul 2020 08:55:04 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96306

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Most targets don't have 128-bit GPR instructions, either none at all, or mo=
st
of them.  That doesn't mean it isn't easy to support it, for the simpler
operations like basic arithmetics, if there is no optab for those, the
middle-end (well, expander) should DTRT and expand those already, and for m=
ore
complex stuff there is always libgcc that has the double word support in th=
ere.
 I think the backend needs to have at least movti optab.
Of course, it helps if the backend tries to help a little bit, e.g. for TIm=
ode
plus/minus it is nice to have some carry  into the second addition or simil=
ar.
For the omp_depend_kind itself, even no arithmetic support is probably need=
ed.=