From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15817 invoked by alias); 20 May 2012 15:36:00 -0000 Received: (qmail 15746 invoked by uid 22791); 20 May 2012 15:35:59 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED 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; Sun, 20 May 2012 15:35:47 +0000 From: "hjl.tools at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/53383] Allow -mpreferred-stack-boundary=3 on x86-64 Date: Sun, 20 May 2012 15:36:00 -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: enhancement X-Bugzilla-Who: hjl.tools 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: 2012-05/txt/msg01924.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53383 --- Comment #14 from H.J. Lu 2012-05-20 14:28:18 UTC --- (In reply to comment #12) > > Not when you call function with -fpreferred-stack-boundary=3 > and it is itself compiled with -fpreferred-stack-boudnary=4 > and calls another functions passing __int128. > Thus the ABI incompatibility. When everything is compiled with -fpreferred-stack-boundary=3, it works fine.