[Bug tree-optimization/59355] New: [4.9 Regression] ICE: SIGSEGV in hash_table::find_slot_with_hash() with -fno-devirtualize

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59355

            Bug ID: 59355
           Summary: [4.9 Regression] ICE: SIGSEGV in
                    hash_table::find_slot_with_hash() with
                    -fno-devirtualize
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 31340
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31340&action=edit
reduced testcase

Compiler output:
$ gcc -O2 -fno-devirtualize testcase.C   
testcase.C:10:1: internal compiler error: Segmentation fault
 }
 ^
0xc985ef crash_signal
        /mnt/svn/gcc-trunk/gcc/toplev.c:336
0xaad8d1 hash_table<odr_hasher, xcallocator>::find_slot_with_hash(tree_node
const*, unsigned int, insert_option)
        /mnt/svn/gcc-trunk/gcc/hash-table.h:774
0xaaaa4c get_odr_type(tree_node*, bool)
        /mnt/svn/gcc-trunk/gcc/ipa-devirt.c:413
0xaac2e5 possible_polymorphic_call_targets(tree_node*, long,
ipa_polymorphic_call_context, bool*, void**)
        /mnt/svn/gcc-trunk/gcc/ipa-devirt.c:1191
0xaacf8e possible_polymorphic_call_targets
        /mnt/svn/gcc-trunk/gcc/ipa-utils.h:114
0xaacf8e ipa_devirt
        /mnt/svn/gcc-trunk/gcc/ipa-devirt.c:1455
0xaacf8e execute
        /mnt/svn/gcc-trunk/gcc/ipa-devirt.c:1637
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.

$ gcc -v                                                   
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-205547-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-205547-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20131130 (experimental) (GCC) 


Tested revisions:
r205547 - crash
4.8 r204890 - OK