From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-397331-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 28864 invoked by alias); 25 Jul 2012 11:24:31 -0000
Received: (qmail 28856 invoked by uid 22791); 25 Jul 2012 11:24:30 -0000
X-SWARE-Spam-Status: No, hits=-3.5 required=5.0	tests=ALL_TRUSTED,AWL,BAYES_00,TW_GX
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; Wed, 25 Jul 2012 11:24:16 +0000
From: "bugzilla-gcc at thewrittenword dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/54091] New: internal compiler error in class method with many string objects
Date: Wed, 25 Jul 2012 11:24:00 -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: bugzilla-gcc at thewrittenword dot com
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-54091-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
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: 2012-07/txt/msg01917.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54091

             Bug #: 54091
           Summary: internal compiler error in class method with many
                    string objects
    Classification: Unclassified
           Product: gcc
           Version: 4.4.6
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: bugzilla-gcc@thewrittenword.com


Created attachment 27870
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27870
output of g++ -save-temps command from description...

$ g++ -v
Using built-in specs.
Target: powerpc-ibm-aix5.3.0.0
Configured with: /opt/build/gcc-4.4.6/configure --enable-nls
--with-included-gettext --enable-shared --enable-threads
--with-local-prefix=/opt/TWWfsw/gcc44 --with-gmp=/opt/TWWfsw/libgmp43
--with-mpfr=/opt/TWWfsw/libmpfr30 --with-gmp-ldflags='-Wl,-brtl
-Wl,-blibpath:/opt/TWWfsw/libgmp43/lib:/usr/lib' --with-mpfr-ldflags='-Wl,-brtl
-Wl,-blibpath:/opt/TWWfsw/libmpfr30/lib:/usr/lib'
--enable-languages=ada,c,c++,fortran --datadir=/opt/TWWfsw/gcc44/share
--with-gxx-include-dir=/opt/TWWfsw/gcc44/include/c++ --prefix=/opt/TWWfsw/gcc44
Thread model: aix
gcc version 4.4.6 [TWW] (GCC) 
$ g++ -save-temps
-I/opt/TWWfsw/libwxgtk28/lib/gcc44/wx/include/gtk2-unicode-release-2.8
-I/opt/TWWfsw/libwxgtk28/include/gcc44 -D__WXGTK__ -O2 -c ice.cpp
: In member function 'void Ice::Segv()':
:1139: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

ice.ii attached.

Data points:

 * This bug was found when compiling code blocks-10.05 against wxGTK-2.8.12, in
the file src/plugins/contrib/headerfixup/defaults.cpp, but I removed the
majority of noise except '#include <wx/wxString.h>' which is needed to trip the
bug.
 * Preprocessing the file separately, and then compiling the output works
correctly.
 * Removing a single one of the 1126 identical lines in Ice:Segv changes the
error to an out of memory fault.
 * Reducing optimisation to -O1 allows the compile to succeed.
 * Trying to factor away the wxString type (replacing L"x" with "x" and
wxString with string) allows compilation to succeed.