* config/bfin/bfin.md (UNSPEC_NOP): New constant.
(forced_nop): New pattern.
* config/bfin/bfin.c: Include "df.h".
(add_to_reg): Use df_regs_ever_live_p instead of regs_ever_live.
(bfin_discover_loop): Use df_get_live_in instead of
global_live_at_start.
(bfin_reorder_loops): Pass 0 to cfg_layout_initialize. Call
df_analyze when done.
(gen_one_bundle): Don't generate SEQUENCE insns, just put modes on
the insns. Use QImode for the final insn in a bundle. Call
df_insn_rescan on generated NOPs; use gen_forced_nop instead of
gen_nop.
(reorder_var_tracking_notes): New function.
(bfin_reorg): Pass no argument to split_all_insns. Don't call
update_life_info. Call df_analyze after scheduling and bundle
generation. Call reorder_var_tracking_notes if generating these notes.
Call df_finish_pass at the end.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@125648
138bc75d-0d04-0410-961f-
82ee72b054a4