From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-449663-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 3542 invoked by alias); 23 Apr 2014 08:58:15 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 3501 invoked by uid 55); 23 Apr 2014 08:58:12 -0000
From: "mircea.namolaru at inria dot fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/55022] [4.8 Regression] air.f90 is miscompliled with -m64 -O2 -fgraphite-identity after revision 190619
Date: Wed, 23 Apr 2014 08:58:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 4.8.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: mircea.namolaru at inria dot fr
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Priority: P4
X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.8.3
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields:
Message-ID: <bug-55022-4-u9jTIWcnHy@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-55022-4@http.gcc.gnu.org/bugzilla/>
References: <bug-55022-4@http.gcc.gnu.org/bugzilla/>
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: 2014-04/txt/msg01683.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55022

--- Comment #27 from Mircea Namolaru <mircea.namolaru at inria dot fr> ---
Hi,

Many thanks. 

I've passed over the meta-bug opened by you for Graphite,
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59859 and seems to me
that many of the problem have been already solved (some by you) or at least 
as in case of some compile-time/memory usage/missed optimization issues
we know how to solve it - some form of delinearization of array accesses 
that for sure was not for GCC 4.9. 

Btw, there is also another Graphite bug in this list
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59586 that was solved but didn't 
make it for GCC 4.9.0.

Mircea


----- Original Message -----
> From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
> To: "mircea namolaru" <mircea.namolaru@inria.fr>
> Sent: Tuesday, April 22, 2014 3:34:09 PM
> Subject: [Bug tree-optimization/55022] [4.8 Regression] air.f90 is miscompliled with -m64 -O2 -fgraphite-identity
> after revision 190619
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55022
> 
> --- Comment #26 from Richard Biener <rguenth at gcc dot gnu.org> ---
> Author: rguenth
> Date: Tue Apr 22 13:33:37 2014
> New Revision: 209633
> 
> URL: http://gcc.gnu.org/viewcvs?rev=209633&root=gcc&view=rev
> Log:
> 2014-04-22  Richard Biener  <rguenther@suse.de>
> 
>     Backport from mainline
>     2014-04-14  Richard Biener  <rguenther@suse.de>
> 
>     PR middle-end/55022
>     * fold-const.c (negate_expr_p): Don't negate directional rounding
>     division.
>     (fold_negate_expr): Likewise.
> 
>     * gcc.dg/graphite/pr55022.c: New testcase.
> 
> Added:
>     branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/graphite/pr55022.c
> Modified:
>     branches/gcc-4_9-branch/gcc/ChangeLog
>     branches/gcc-4_9-branch/gcc/fold-const.c
>     branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
> 
> --
> You are receiving this mail because:
> You are on the CC list for the bug.
>