[Bug tree-optimization/43306] New: [4.5 Regression] ICE: in scan_tree_for_params_right_scev, at graphite-sese-to-poly.c:713 with -O1 -fstrict-overflow -fgraphite-identity

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

Command line:
gcc -O1 -fstrict-overflow -fgraphite-identity testcase.c

------ testcase.c ------
void foo(int x[])
{
  int i, j;
  for (i = 0; i < 2; i++)
    for (j = 0; j < 2; j++)
      x[i] = x[i*j];
}
------------------------
(almost the same as testsuite/gcc.dg/tree-ssa/pr34635.c)

Tested revisions:
trunk r157292 - crash
trunk r156999 - crash
trunk r153685 - crash
4.4 r157120 - OK

Output:
$ /mnt/svn/gcc-trunk/binary-156999-lto/bin/gcc -O1 -fstrict-overflow
-fgraphite-identity testcase.c
testcase.c: In function 'foo':
testcase.c:1:6: internal compiler error: in scan_tree_for_params_right_scev, at
graphite-sese-to-poly.c:713


-- 
           Summary: [4.5 Regression] ICE: in
                    scan_tree_for_params_right_scev, at graphite-sese-to-
                    poly.c:713 with -O1 -fstrict-overflow -fgraphite-
                    identity
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43306