[Bug tree-optimization/33835] New: [4.3 Regression] Segfault in vect_is_simple_use

["tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Using a slightly modified version of the testcase from PR33834
I get a segfault in vect_is_simple_use.  Unlike the other PR, which
goes back several months, this ICE doesn't happen with 20070916
(but with current trunk).  It also triggers at -O rather than -O2
(and -ftree-vectorize, obviously).

(sid)29588:tbm@em64t: ~] /usr/lib/gcc-snapshot/bin/g++ -c -O -ftree-vectorize
psicode-internals2.cc
psicode-internals2.cc: In member function 'void internals::compute_s()':
psicode-internals2.cc:43: internal compiler error: Segmentation fault
Please submit a full bug report,


-- 
           Summary: [4.3 Regression] Segfault in vect_is_simple_use
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33835