re PR tree-optimization/18425 (ICE in vector.tcc when -ftree-vectorize enabled)

re PR tree-optimization/18425 (ICE in vector.tcc when -ftree-vectorize enabled)

2004-11-14  Dorit Naishlos  <dorit@il.ibm.com>
            Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/18425
        * tree-vectorize.c (vect_build_loop_niters): Do not insert
        NULL into the instruction stream. Initialize new_bb to NULL.
        (vect_update_ivs_after_vectorizer): Likewise.
        (vect_gen_niters_for_prolog_loop): Likewise.

Co-Authored-By: Andrew Pinski <pinskia@physics.uc.edu>
From-SVN: r90625