From 06d7e8e7066b42f440993419493909fefafdc4d5 Mon Sep 17 00:00:00 2001 From: Bernd Schmidt Date: Fri, 30 Sep 2011 13:33:54 +0000 Subject: haifa-sched.c (modulo_ii, [...]): New static variables. * haifa-sched.c (modulo_ii, modulo_max_states, modulo_n_insns, modulo_insns_scheduled, modulo_iter0_max_uid, modulo_backtracks_left, modulo_last_stage): New static variables. (set_modulo_params, discard_delay_pairs_above): New functions. (struct delay_pair): New member stages. (htab_i2_traverse, htab_i1_traverse): New static functions. (record_delay_slot_pair): New arg stages. All callers changed. Record it. (pair_delay): Take stages into account. (add_delay_dependencies): Don't do so for stage pairs. (struct sched_block_state): New member modulo_epilogue. (save_backtrack_point): Don't set SHADOW_P for stage pairs. (unschedule_insns_until): Decrease modulo_insns_scheduled. Set HARD_DEP without using or. (resolve_dependencies): New static function. (prune_ready_list): New arg modulo_epilogue_p. All callers changed. If it is true, allow only insns with INSN_EXACT_TICK set. (schedule_block): Return bool, always true for normal scheduling, true or false depending on modulo scheduling success otherwise. Add bookkeeping for modulo scheduling, and call resolve_dependencies on everything left over after a modulo schedule. (haifa_sched_init): Remove check_cfg call. Clear modulo_ii. * sched-int.h (schedule_block, record_delay_slot_pair): Adjust declarations. (set_modulo_params, discard_delay_pairs_above): Declare. * params.def (PARAM_MAX_MODULO_BACKTRACK_ATTEMPS): New. * doc/invoke.texi (--param): Document it. From-SVN: r179383 --- gcc/sched-int.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'gcc/sched-int.h') diff --git a/gcc/sched-int.h b/gcc/sched-int.h index 6797397..5e90cd1 100644 --- a/gcc/sched-int.h +++ b/gcc/sched-int.h @@ -1257,7 +1257,7 @@ extern int dep_cost (dep_t); extern int set_priorities (rtx, rtx); extern void sched_setup_bb_reg_pressure_info (basic_block, rtx); -extern void schedule_block (basic_block *); +extern bool schedule_block (basic_block *); extern int cycle_issued_insns; extern int issue_rate; @@ -1330,7 +1330,9 @@ extern int current_blocks; extern int target_bb; extern bool sched_no_dce; -extern void record_delay_slot_pair (rtx, rtx, int); +extern void set_modulo_params (int, int, int, int); +extern void record_delay_slot_pair (rtx, rtx, int, int); +extern void discard_delay_pairs_above (int); extern void free_delay_pairs (void); extern void add_delay_dependencies (rtx); extern bool sched_is_disabled_for_current_region_p (void); -- cgit v1.1