* loop.c (struct movables): New.
(num_movables): Move into struct movables.
(the_movables): Change type to struct movables.
(ignore_some_movables): Change struct movable arg to struct movables.
(force_movables, combine_movables, regs_match_p): Likewise.
(rtx_equal_for_loop_p, move_movables): Likewise.
(scan_loop): Change movables to be of type struct movables.
Replace last_movable with field in movables structure.
From-SVN: r36278
