[Bug tree-optimization/48375] New: ICE: in initialize_matrix_A, at tree-data-ref.c:1901 with -O -ftree-vectorize

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48375

           Summary: ICE: in initialize_matrix_A, at tree-data-ref.c:1901
                    with -O -ftree-vectorize
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz
            Target: i686-pc-linux-gnu


Created attachment 23826
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23826
reduced testcase

Compiler output:
$ gcc -O -ftree-vectorize testcase.c
testcase.c: In function 'foo':
testcase.c:1:1: internal compiler error: in initialize_matrix_A, at
tree-data-ref.c:1901
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r171735 - crash
r171721 - crash (x86)
4.6 r171597 - crash
4.5 r171597 - crash
4.4 r171597 - crash