From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-499776-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 11811 invoked by alias); 16 Oct 2015 18:29:51 -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 11288 invoked by uid 48); 16 Oct 2015 18:29:46 -0000
From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/67993] New: ice in compare_operand with -O2 -march=native
Date: Fri, 16 Oct 2015 18:29:00 -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: 6.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dcb314 at hotmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution:
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 target_milestone attachments.created
Message-ID: <bug-67993-4@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: 2015-10/txt/msg01331.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67993

            Bug ID: 67993
           Summary: ice in compare_operand with -O2 -march=native
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 36530
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36530&action=edit
gzipped C++ source code

$ ../results/bin/g++ -c -w -O2 -march=native bug236.cc
/home/dcb/rpmbuild/BUILD/eigen-eigen-c58038c56923/x86_64-redhat-linux-gnu/doc/snippets/compile_HouseholderQR_solve.cpp:21:1:
internal compiler error: in compare_operand, at ipa-icf-gimple.c:419
 }
 ^
0x151e7d7 ipa_icf_gimple::func_checker::compare_operand(tree_node*, tree_node*)
        ../../src/trunk/gcc/ipa-icf-gimple.c:418
0x151f90a ipa_icf_gimple::func_checker::compare_operand(tree_node*, tree_node*)
        ../../src/trunk/gcc/tree.h:3046
0x151f90a ipa_icf_gimple::func_checker::compare_memory_operand(tree_node*,
tree_node*)
        ../../src/trunk/gcc/ipa-icf-gimple.c:330
0x151fe84 ipa_icf_gimple::func_checker::compare_memory_operand(tree_node*,
tree_node*)
        ../../src/trunk/gcc/ipa-icf-gimple.c:266

gcc is today's trunk.