From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 3509A383F871; Tue, 16 Jun 2020 11:40:23 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3509A383F871 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1592307623; bh=umx7TahinZrPfXWr4vN+ZPT5U3Sa4Ij/ea8/5ONC0Xs=; h=From:To:Subject:Date:In-Reply-To:References:From; b=XGymlbZzerqKuaTXh+3mNrDcjoXC/UwVaDaPJPE0TOUcJBD/7+kV8yiRi92bIH6g/ rqlgZQBfxEgy8NGDTkFIaaDy7340vTTROJdHuJv99su4dyzz4mS5STC+p8C96IhbBR td9n+BE3xPguA0yV+ROMpwaDYfAuF4qUayEU9jlk= From: "shawn at git dot icu" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/94687] PPC vector fails to optimize shift (used bits) Date: Tue, 16 Jun 2020 11:40:23 +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: 8.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: shawn at git dot icu 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: In-Reply-To: References: 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Jun 2020 11:40:23 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94687 --- Comment #2 from Shawn Landden --- LLVM fixed this by lowering to vector shuffle: https://dev.gnupg.org/D501=