From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-372552-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 10132 invoked by alias); 1 Nov 2011 20:23:41 -0000
Received: (qmail 10050 invoked by uid 22791); 1 Nov 2011 20:23:22 -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; Tue, 01 Nov 2011 20:23:08 +0000
From: "konstantinos.margaritis at linaro dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/50948] New: ICE on armhf with neon code
Date: Tue, 01 Nov 2011 20:23:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: konstantinos.margaritis at linaro 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-Changed-Fields:
Message-ID: <bug-50948-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
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
X-SW-Source: 2011-11/txt/msg00048.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D50948

             Bug #: 50948
           Summary: ICE on armhf with neon code
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: konstantinos.margaritis@linaro.org
              Host: arm-linux-gnueabihf
            Target: arm-linux-gnueabihf
             Build: arm-linux-gnueabihf


Created attachment 25679
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=3D25679
minimal testcase produced using delta tool from source (propriatery driver
including NEON code)

When building neon code on armhf -which I cannot attach to its full,
due to licensing reason, unfortunately- I get an ICE. Using delta I
was able to get a minimal testcase that produces the exact ICE. The
testcase is attached. Here is the message and the cmd line used:

$ gcc -O -mfpu=3Dneon matrix-min.i
matrix-min.i: In function =E2=80=98matrixTranspose=E2=80=99:
matrix-min.i:10:29: internal compiler error: in immed_double_const, at
emit-rtl.c:550
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.6/README.Bugs> for instructions.
Preprocessed source stored into /tmp/cc3zlt4j.out file, please attach
this to your bugreport.

In fact, the same ICE I get on oneiric gcc with the same testcase.

The bug has also been filed on Debian BTS:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D646160

Konstantinos