From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 628 invoked by alias); 16 Feb 2012 13:27:28 -0000 Received: (qmail 616 invoked by uid 22791); 16 Feb 2012 13:27:26 -0000 X-SWARE-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 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; Thu, 16 Feb 2012 13:26:31 +0000 From: "michael.kostylev at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/52238] -mms-bitfields: __attribute__ ((aligned (n))) ignored for struct members Date: Thu, 16 Feb 2012 13:34:00 -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: michael.kostylev 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: 2012-02/txt/msg01643.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52238 --- Comment #3 from Michael Kostylev 2012-02-16 13:26:24 UTC --- Ok, let's modify the test case - s/char a;/char a:6;/: struct { char a:6; char b __attribute__ ((aligned (16))); } s; int main() { return (__PTRDIFF_TYPE__)&s.b & 15; } The b member is still misaligned, moreover, its offset is equal to 0x11 after patching.