[Bug target/47975] New: ICE: in expand_shift, at expmed.c:2299 when using 256b vectors without -mavx

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47975

           Summary: ICE: in expand_shift, at expmed.c:2299 when using 256b
                    vectors without -mavx
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 23533
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23533
reduced testcase

$ gcc testcase.c
testcase.c: In function 'foo':
testcase.c:6:5: internal compiler error: in expand_shift, at expmed.c:2299
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

$ gcc-4.5.2 testcase.c
testcase.c: In function 'foo':
testcase.c:6:5: error: invalid operands to binary << (have '__vector(8) int'
and '__vector(8) int')

Tested revisions:
r170622 - crash
4.5 - code is rejected