[Bug tree-optimization/60844] New: [4.9/4.10 Regression] ICE in reassoc_stmt_dominates_stmt_p

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60844

            Bug ID: 60844
           Summary: [4.9/4.10 Regression] ICE in
                    reassoc_stmt_dominates_stmt_p
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org

void
foo (int *x, int y, int z)
{
  int b, c = x[0], d = x[1];
  for (b = 0; b < 1; b++)
    {
      int e = (y ? 1 : 0) | (d ? 2 : 0) | (z ? 1 : 0);
      e |= (c ? 2 : 0) | ((1 >> b) ? 1 : 0);
      x[2 + b] = e;
    }
}

ICEs at -O2 -g -mtune=atom on x86_64/i686, starting with r203979.