From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-481635-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 37193 invoked by alias); 25 Mar 2015 16:31:42 -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 37172 invoked by uid 48); 25 Mar 2015 16:31:39 -0000
From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/65557] New: ICE: SIGSEGV in hash_table<>::find_slot_with_hash() with -fdevirtualize -fipa-cp -fipa-icf-functions
Date: Wed, 25 Mar 2015 16:49:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: ipa
X-Bugzilla-Version: 5.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: zsojka at seznam dot cz
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-65557-4@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: 2015-03/txt/msg02779.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65557

            Bug ID: 65557
           Summary: ICE: SIGSEGV in hash_table<>::find_slot_with_hash()
                    with -fdevirtualize -fipa-cp -fipa-icf-functions
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 35138
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35138&action=edit
reduced testcase

Compiler output:
$ gcc -fdevirtualize -fipa-cp -fipa-icf-functions testcase.C 
testcase.C:16:6: internal compiler error: Segmentation fault
 S1 s1;
      ^
0xe0a5cf crash_signal
        /mnt/svn/gcc-trunk/gcc/toplev.c:383
0xc123e2 hash_table<hash_map<int, ipa_node_params*,
function_summary<ipa_node_params*>::summary_hashmap_traits>::hash_entry,
xcallocator, true>::find_slot_with_hash(int const&, unsigned int,
insert_option)
        /mnt/svn/gcc-trunk/gcc/hash-table.h:1542
0xc12591 hash_map<int, ipa_node_params*,
function_summary<ipa_node_params*>::summary_hashmap_traits>::get_or_insert(int
const&, bool*)
        /mnt/svn/gcc-trunk/gcc/hash-map.h:232
0xc12591 function_summary<ipa_node_params*>::get(int)
        /mnt/svn/gcc-trunk/gcc/symbol-summary.h:230
0x18605de function_summary<ipa_node_params*>::get(cgraph_node*)
        /mnt/svn/gcc-trunk/gcc/symbol-summary.h:112
0x18605de ipa_icf::sem_function::equals_wpa(ipa_icf::sem_item*,
hash_map<symtab_node*, ipa_icf::sem_item*, default_hashmap_traits>&)
        /mnt/svn/gcc-trunk/gcc/ipa-icf.c:518
0x18581ca ipa_icf::sem_item_optimizer::subdivide_classes_by_equality(bool)
        /mnt/svn/gcc-trunk/gcc/ipa-icf.c:2518
0x185fb7a ipa_icf::sem_item_optimizer::execute()
        /mnt/svn/gcc-trunk/gcc/ipa-icf.c:2296
0x18624a6 ipa_icf_driver
        /mnt/svn/gcc-trunk/gcc/ipa-icf.c:3172
0x18624a6 ipa_icf::pass_ipa_icf::execute(function*)
        /mnt/svn/gcc-trunk/gcc/ipa-icf.c:3219
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r221607 - ICE