* basic-block.h (set_block_num): Declare.
        * flow.c (update_life_info): Don't call compute_bb_for_insn
        or free_basic_block_vars.
        * haifa-sched.c (remove_dependence): Conditionalize on HAVE_cc0.
        (insn_orig_block): Remove.
        (INSN_BLOCK): Remove.  Update all callers to use BLOCK_NUM.
        (schedule_block): Keep BLOCK_NUM up-to-date.
        (schedule_insns): Use compute_bb_for_insn.
        * recog.c (split_all_insns): Likewise.
        (peephole2_optimize): Likewise.

From-SVN: r30073