re PR tree-optimization/16954 (ICE in get_tmt_for with IMA and incomplete structs)

2004-09-24  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/16954
        * tree-ssa-copyrename.c (copy_rename_partition_coalesce):
        Prevent renaming if the aliasing sets of the type which the
        pointer points to are different.

From-SVN: r88064