From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11654 invoked by alias); 4 May 2014 11:51:03 -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 11636 invoked by uid 48); 4 May 2014 11:51:00 -0000 From: "pdziepak at quarnos dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/61053] New: _Alignas(long long) reduces alignment of long long Date: Sun, 04 May 2014 11:51:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pdziepak at quarnos dot org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-05/txt/msg00191.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D61053 Bug ID: 61053 Summary: _Alignas(long long) reduces alignment of long long Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: pdziepak at quarnos dot org On 32 bit x86 definition like the following one: _Alignas(long long) long long ll; causes GCC 4.9 to produce error: =E2=80=98_Alignas=E2=80=99 specifiers cannot reduce alignment of =E2=80=98l= l=E2=80=99 Only types long long and double seem to be affected. The problem is not pre= sent on GCC 4.8.2. >>From gcc-bugs-return-450500-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun May 04 12:07:15 2014 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 23498 invoked by alias); 4 May 2014 12:07:15 -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 Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 23471 invoked by uid 48); 4 May 2014 12:07:12 -0000 From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/61053] [4.9/4.10 Regression] _Alignas(long long) reduces alignment of long long Date: Sun, 04 May 2014 12:07:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: rejects-valid X-Bugzilla-Severity: normal X-Bugzilla-Who: redi 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-Flags: X-Bugzilla-Changed-Fields: keywords bug_status cf_reconfirmed_on cf_known_to_work short_desc everconfirmed Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-05/txt/msg00192.txt.bz2 Content-length: 865 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61053 Jonathan Wakely changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |rejects-valid Status|UNCONFIRMED |NEW Last reconfirmed| |2014-05-04 Known to work| |4.8.2 Summary|_Alignas(long long) reduces |[4.9/4.10 Regression] |alignment of long long |_Alignas(long long) reduces | |alignment of long long Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely --- FWIW, it also compiles OK as C++11 with s/_Alignas/alignas/