From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-443853-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 12140 invoked by alias); 16 Feb 2014 21:50:03 -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 12101 invoked by uid 48); 16 Feb 2014 21:49:58 -0000
From: "moezzia at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/60230] New: internal compiler error on lambdas capturing multidimensional arrays with dynamic boundary
Date: Sun, 16 Feb 2014 21:50:00 -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: moezzia at gmail 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-Flags:
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter attachments.created
Message-ID: <bug-60230-4@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: 2014-02/txt/msg01610.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60230

            Bug ID: 60230
           Summary: internal compiler error on lambdas capturing
                    multidimensional arrays with dynamic boundary
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: moezzia at gmail dot com

Created attachment 32145
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32145&action=edit
preprocessed file foo.ii

With the following code snippet

<snip>
    void foo(const unsigned N)
    {
        int p[N][N];
        auto go = [&p] (void) { p[0][0] = -1; };
        go();
    }
</snip>

I get an internal compiler error.

#> /usr/local/bin/g++ --std=c++11 foo.cpp

foo.cpp: In lambda function:
foo.cpp:5:35: internal compiler error: in expand_expr_real_1, at expr.c:9459
     auto go = [&p] (void) { p[0][0] = -1; };
                                   ^



#> /usr/local/bin/g++ -v

Using built-in specs.
COLLECT_GCC=/usr/local/bin/g++
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ./configure --disable-multilib --enable-languages=c,c++
Thread model: posix
gcc version 4.9.0 20140216 (experimental) (GCC)