From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11595 invoked by alias); 31 Oct 2012 15:48:31 -0000 Received: (qmail 9705 invoked by uid 48); 31 Oct 2012 15:47:50 -0000 From: "ubizjak at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/55147] x86: wrong code for 64-bit load Date: Wed, 31 Oct 2012 15:48:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: ubizjak at gmail dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-10/txt/msg02964.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55147 --- Comment #2 from Uros Bizjak 2012-10-31 15:47:46 UTC --- > can fix the reg overlap problem between address of operands[1] and high part of > operands[0]. That said, I wonder what is the advantage of having bswapdi2 > patter on i?86 at all that the generic expand_doubleword_bswap can't handle. If generic code creates similar assembly, then I'm all for removing this pattern.