[Bug rtl-optimization/54944] New: 400.perlbench fails with segmentation fault

["Ganesh.Gopalasubramanian at amd dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54944

             Bug #: 54944
           Summary: 400.perlbench fails with segmentation fault
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: Ganesh.Gopalasubramanian@amd.com


Perlbench fails with segmentation fault with latest trunk (r192528).

Commandline: gcc -o doop.o -O3 -DSPEC_CPU -DNDEBUG -DPERL_CORE
-funroll-all-loops -DSPEC_CPU_LP64  -DSPEC_CPU_LINUX_X64 doop.c

doop.c: In function 'Perl_do_vop':
doop.c:1334:1: internal compiler error: Segmentation fault
 }
 ^
0x8c175f crash_signal
        ../../source1/gcc/toplev.c:335
0x60feb8 TEST_BIT
        ../../source1/gcc/sbitmap.h:107
0x60feb8 duplicate_loop_to_header_edge(loop*, edge_def*, unsigned int,
simple_bitmap_def*, edge_def*, vec_t<edge_def*>**, int)
        ../../source1/gcc/cfgloopmanip.c:1184
0x7e1066 peel_loop_completely
        ../../source1/gcc/loop-unroll.c:486
0x7e1066 peel_loops_completely
        ../../source1/gcc/loop-unroll.c:250
0x7e1066 unroll_and_peel_loops(int)
        ../../source1/gcc/loop-unroll.c:160
0x7d6387 rtl_unroll_and_peel_loops
        ../../source1/gcc/loop-init.c:378

I am drilling down the svn revision.