From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11630 invoked by alias); 9 May 2012 03:13:37 -0000 Received: (qmail 11618 invoked by uid 22791); 9 May 2012 03:13:36 -0000 X-SWARE-Spam-Status: No, hits=-4.2 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED,TW_SD,TW_VM,TW_VP X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 09 May 2012 03:13:23 +0000 From: "venkataramanan.kumar at amd dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/52908] xop-mul-1:f9 miscompiled on bulldozer (-mxop) Date: Wed, 09 May 2012 03:44:00 -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: venkataramanan.kumar at amd dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: ubizjak at gmail dot com 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: 2012-05/txt/msg00951.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52908 --- Comment #6 from Venkataramanan 2012-05-09 03:13:01 UTC --- (In reply to comment #5) > (In reply to comment #4) > > A Quick make check on i386.exp result is shown below: > > > > Tests that now fail, but worked before: > > > > gcc.target/i386/xop-imul32widen-vector.c scan-assembler vpmacsdql > This is expected, there is no need to emit vpmacsdql, IMO vpmuldq works as good > (if not even better, since we don't have to preload accumulator with zero). The > test should be either changed to really emit vpmacsdql, or asm scan should be > adjusted. > > Tests that now work, but didn't before: > > > > gcc.target/i386/xop-mul-1.c execution test > Yes this one should be fixed with the patch. > If the change vmpacsdql -> vpmuldq is OK with you, I can commit the patch, but > I'd ask you for full bootstrap/regression test. Hi Uros, I did a complete boot strap test and Ok with the patch. We will adjust the test case xop-imul32widen-vector.c to scan for vmuldq.