* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29894
138bc75d-0d04-0410-961f-
82ee72b054a4