From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22222 invoked by alias); 30 Apr 2013 05:53:46 -0000 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 Received: (qmail 22167 invoked by uid 48); 30 Apr 2013 05:53:42 -0000 From: "ubizjak at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/44578] GCC generates MMX instructions but fails to generate "emms" Date: Tue, 30 Apr 2013 05:53:00 -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: ubizjak at gmail dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: ubizjak at gmail dot com X-Bugzilla-Target-Milestone: 4.7.4 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 X-SW-Source: 2013-04/txt/msg02386.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44578 --- Comment #13 from Uros Bizjak 2013-04-30 05:53:42 UTC --- (In reply to comment #12) > I found that due to the header file structure I cannot use -mno-mmx in > certain cases - i.e. when including the STL header file > and compiling with c++11. Is this a known issue/limitation? This is known non-issue; intrinsics require MMX instruction set enabled, this is the reason why so much effort was put into this problem.