From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20747 invoked by alias); 15 Nov 2012 12:06:52 -0000 Received: (qmail 20655 invoked by uid 48); 15 Nov 2012 12:06:35 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/44578] GCC generates MMX instructions but fails to generate "emms" Date: Thu, 15 Nov 2012 12:06:00 -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: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org 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: CC Known to work 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: 2012-11/txt/msg01400.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44578 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org Known to work| | --- Comment #5 from Jakub Jelinek 2012-11-15 12:06:34 UTC --- Using mmX as global registers variables is a user bug if you ever call something that might be using FPU stack, because the registers can't be preserved across that. Don't do that.