sched-rgn.c: Remove bitset typedef.

sched-rgn.c: Remove bitset typedef.

2001-10-27  Daniel Berlin  <dan@cgsoftware.com>

        * sched-rgn.c: Remove bitset typedef.
        Change bitset to sbitmap in prototypes / variable types.
        Remove bbset_size.
        Remove edgeset_bits.
        Remove edgeset_size.
        s/BITSET_ADD/SET_BIT/g
        s/BITSET_INVERT/sbitmap_ones/g
        s/BITSET_INTER/sbitmap_a_and_b/g
        s/BITSET_UNION/sbitmap_a_or_b/g
        s/BITSET_DIFFER/sbitmap_difference/g
        s/bitset_member/TEST_BIT/g
        (BITSET_*): Removed.
        (bitset_member): Removed.
        (extract_bitlst): Rewrite, now that we have sbitmaps, we can use
        EXECUTE_IF_SET_IN_SBITMAP.
        (split_edges): Rewrite, use sbitmap functions instead of bitset
        operations.
        (schedule_region): Allocate/free sbitmaps, rather than bitsets.

From-SVN: r46541