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 786BE388E820; Wed, 17 Jun 2020 14:53:24 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 786BE388E820
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1592405604;
 bh=6oygsyNr19q48U5nkg0n43UUbZE4z2vy9E/7bihVUBA=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=DwyONA1bwHXutgmZ+dcdQfJ9Yxi57ZLjk3pt4V2x5a3uirHHQw8wAQndA0gK5wDws
 QFUgKVxaExQQSr8oYwaLNYGMjtGVgRFoxrKLd6xYZxklOifExbFi6Uu8DYRPshRcmb
 WKW1cKiaYMs4g1AiSZXlkTiJbfK+WxQFPv7ANszA=
From: "segher at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/95704] PPC: int128 shifts should be implemented branchless
Date: Wed, 17 Jun 2020 14:53:24 +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: 8.3.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: segher at gcc dot gnu.org
X-Bugzilla-Status: NEW
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-95704-4-yQhAjjtQbi@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-95704-4@http.gcc.gnu.org/bugzilla/>
References: <bug-95704-4@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: Wed, 17 Jun 2020 14:53:24 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95704

--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> ---
It no longer generates that rldicl in GCC 9 (or GCC 10).

You do get straight-line code already if you use -mcpu=3Dpower9, btw
(isel; and not totally awful code, but it isn't super of course).=