From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-463749-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 7427 invoked by alias); 10 Oct 2014 11:23:18 -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 7398 invoked by uid 48); 10 Oct 2014 11:23:15 -0000
From: "doko at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/63505] New: [4.8/4.9 Regression] ICE with -fdebug-types-section in should_move_die_to_comdat, at dwarf2out.c:6702
Date: Fri, 10 Oct 2014 11:23:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: other
X-Bugzilla-Version: 4.9.1
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: doko at gcc dot gnu.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: <bug-63505-4@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: 2014-10/txt/msg00770.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63505

            Bug ID: 63505
           Summary: [4.8/4.9 Regression] ICE with -fdebug-types-section in
                    should_move_die_to_comdat, at dwarf2out.c:6702
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org

this might be related to PR57664 and/or PR53860 (but the latter was closed),
seen on today's 4.8 and 4.9 branches, but not on trunk.

test case reduced from https://bugs.debian.org/764624

$ cat test.cc
template <typename _Predicate> struct A {
  _Predicate _M_pred;
  template <typename _Iterator> bool operator()(_Iterator) { return _M_pred; }
};
template <typename _Predicate> A<_Predicate> __pred_iter(_Predicate) {}

class B {
public:
  int begin();
  int end();
};
template <typename _ForwardIterator, typename _Predicate>
void __remove_if(_ForwardIterator, _Predicate p2) {
  _ForwardIterator __first;
  p2(__first);
}

template <typename _ForwardIterator, typename _Predicate>
void remove_if(_ForwardIterator, _ForwardIterator p2, _Predicate p3) {
  __remove_if(p2, __pred_iter(p3));
}

void tidy_container() {
  B env_container;
  if (false)
    remove_if(env_container.begin(), env_container.end(), [] {});
}

$ g++ -std=gnu++0x -c -g -fdebug-types-section test.cc 
test.cc:27:1: internal compiler error: in should_move_die_to_comdat, at
dwarf2out.c:6702
 }
 ^
Please submit a full bug report,
with preprocessed source if appropriate.