* haifa-sched.c (sched_reg_n_calls_crossed): Delete.
        (sched_reg_live_length, sched_reg_basic_block): Delete.
        (current_block_num, bb_live_regs, old_live_regs): Delete.
        (dead_notes, struct sometimes): Delete.
        (sched_note_set, birthing_insn_p): Delete.
        (adjust_priority): Gut useless reg lifetime code.
        (create_reg_dead_note, attach_deaths): Delete.
        (attach_deaths_insn, new_sometimes_live): Delete.
        (finish_sometimes_live): Delete.
        (find_pre_sched_live, find_post_sched_live): Delete.
        (update_reg_usage): Delete.
        (find_insn_reg_weight): New, from corpse of find_pre_sched_live.
        (schedule_insns): Delete reg lifetime code.
        (sched_analyze): Use REG_SAVE_NOTE to stuff NOTE_INSN notes away.
        (unlink_other_notes): Adjust REG_NOTE commentary.
        (reemit_notes): Use REG_SAVE_NOTE.
        (schedule_block): Likewise.
        (schedule_region): Allocate bitmap of blocks in region.  Use
        count_or_remove_death_notes.  Use update_life_info.

        * rtl.h (REG_SAVE_NOTE): New.
        * rtl.c (reg_note_name): Update.

From-SVN: r29894