From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 0B1A9385743A; Mon, 29 Aug 2022 08:16:24 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0B1A9385743A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1661760984; bh=cdTXM4PpN8fS9YfobBPwDqG9MQkCcFWVq9vN+Vi/Rtc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=VBQD6rqc6EFwZj/UEiwIiWWMWCIUeLexHMdPAFo4NogWCIB0O7Xgpw+P7IpuyOxi7 LUPZ+qGENjys1g8Gy7AbRTe1PcxecFgqin+PNou0STkO4hI2sLw/mF/m9sCPQPJnwa UAFUQUUzYD6+dex7ojz/0XUYEgfIXGwZ4ZJZZbH0= From: "jens.seifert at de dot ibm.com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/106770] PPCLE: Unnecessary xxpermdi before mfvsrd Date: Mon, 29 Aug 2022 08:16:23 +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: 11.2.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: jens.seifert at de dot ibm.com 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: 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106770 --- Comment #1 from Jens Seifert --- vec_extract(vr, 1) should extract the left element. But xxpermdi x,x,x,3 extracts the right element. Looks like a bug in vec_extract for PPCLE and not a problem regarding unnecessary xxpermdi.=