* loop.c (loop_has_tablejump): New variable.
        (prescan_loop): Scan for it.
        (insert_bct): Replace explicit scan with use of it.
        * regclass.c (regclass): Restore loop variable j.
        (record_reg_classes): Deterine op_types modifiers and initialize
        classes[i] before matching constraints.  Handle matching
        constraints 5-9.

From-SVN: r23263