Move the region scheduling code out of haifa-sched.c.

From-SVN: r37977

gcc/ChangeLog

+2000-12-03  Bernd Schmidt  <bernds@redhat.co.uk>
+
+	* Makefile.in (OBJS): Add sched-rgn.o.
+	(sched-rgn.o): New rule.  * haifa-sched.c (sched_verbose): No
+	longer static.
+	(INSN_PRIORITY, INSN_COST, INSN_UNIT, INSN_REG_WEIGHT,
+	INSN_BLOCKAGE, UNIT_BITS, BLOCKAGE_MASK, ENCODE_BLOCKAGE,
+	UNIT_BLOCKED, BLOCKAGE_RANGE, MIN_BLOCKAGE_COST,
+	MAX_BLOCKAGE_COST): Move to sched-int.h.
+	(MAX_RGN_BLOCKS, MAX_RGN_INSNS, INSN_REF_COUNT, FED_BY_SPEC_LOAD,
+	IS_LOAD_INSN, struct haifa_edge, edge_table, NEXT_IN, NEXT_OUT,
+	FROM_BLOCK, TO_BLOCK, nr_edges, in_edges, out_edges, IN_EDGES,
+	OUT_EDGES, edgelst, struct region, nr_regions, rgn_table,
+	rgn_bb_table, block_to_bb, containing_rgn, RGN_NR_BLOCKS,
+	RGN_BLOCKS, BLOCK_TO_BB, BB_TO_BLOCK, CONTAINING_RGN,
+	debug_regions, find_single_block_region, find_rgns, too_large,
+	init_regions, current_nr_blocks, current_blocks, bitset, bitlst,
+	bitlst_table_last, bitlst_table_size, bitlst_table, bitset_member,
+	extract_bitlst, bblst, struct candidate, candidate_table,
+	bblst_table, bblst_size, bblst_last, IS_VALID, IS_SPECULATIVE,
+	SRC_PROB, target_bb, split_edges, compute_trg_info,
+	debug_candidate, debug_candidates, bbset, bbset_size, dom,
+	IS_RGN_ENTRY, IS_DOMINATED, prob, GET_SRC_PROB, edgeset,
+	rgn_nr_edges, rgn_edges, edgeset_size, edgeset_bitsize,
+	EDGE_TO_BIT, edge_to_bit, pot_split, ancestor_edges,
+	compute_dom_prob_ps, ABS_VALUE, INSN_PROBABILITY,
+	IS_SPECULATIVE_INSN, INSN_BB, MIN_DIFF_PRIORITY, MIN_PROBABILITY,
+	MIN_PROB_DIFF, check_live_1, update_live_1, check_live,
+	update_live, set_spec_fed, is_pfree, find_conditional_protection,
+	is_conditionally_protected, may_trap_exp, haifa_classify_insn,
+	is_prisky, is_exception_free, add_branch_dependences,
+	propagate_deps, compute_block_backward_dependences,
+	debug_dependencies, is_cfg_nonregular, build_control_flow,
+	new_edge, bb_deps, BITSET_UNION, BITSET_INTER, BITSET_DIFFER,
+	BITSET_INVERT, BITSET_ADD, BITSET_REMOVE, debug_regions,
+	UPDATE_LOOP_RELATIONS, INSN_TRAP_CLASS, WORST_CLASS, IS_REACHABLE,
+	CONST_BASED_ADDRESS_P, free_pending_lists, sched_target_n_insns,
+	target_n_insns, sched_n_insns, init_ready_list, deaths_in_region,
+	can_schedule_ready_p, new_ready, schedule_more_p, rgn_print_insn,
+	rgn_rank, region_sched_info): Move to sched-rgn.c.
+	(debug_reg_vector): Delete useless function.
+	(get_bb_head_tail): Likewise.
+	(insn_issue_delay, insn_cost, ready_add, get_block_head_tail,
+	no_real_insns_p, rm_line_notes, save_line_notes,
+	restore_line_notes, rm_redundant_line_notes, sched_init): No
+	longer static.
+	(rm_line_notes, save_line_notes, restore_line_notes,
+	schedule_block, set_priorities): Change argument to be a real
+	basic block, not one of haifa's "bb"s.  All callers changed
+	(rm_other_notes): Initialize note_list here, not in
+	schedule_region.
+	(sched_finish): New function, called from schedule_insn.  * *
+	sched-int.h (INSN_PRIORITY, INSN_COST, INSN_UNIT, INSN_REG_WEIGHT,
+	INSN_BLOCKAGE, UNIT_BITS, BLOCKAGE_MASK, ENCODE_BLOCKAGE,
+	UNIT_BLOCKED, BLOCKAGE_RANGE, MIN_BLOCKAGE_COST,
+	MAX_BLOCKAGE_COST): Moved here from haifa-sched.c.
+	(get_block_head_tail, no_real_insns_p, rm_line_notes,
+	save_line_notes, restore_line_notes, rm_redundant_line_notes,
+	rm_other_notes, insn_issue_delay, set_priorities, schedule_block,
+	sched_init, sched_finish, ready_add, insn_cost): Declare.
+
 2000-12-03  Laurynas Biveinis  <lauras@softhome.net>
 	    Bruce Korb  <bkorb@gnu.org>
 

gcc/Makefile.in

@@ -737,7 +737,7 @@ OBJS = diagnostic.o version.o tree.o print-tree.o stor-layout.o fold-const.o  \
  mbchar.o splay-tree.o graph.o sbitmap.o resource.o hash.o predict.o	      \
  lists.o ggc-common.o $(GGC) stringpool.o simplify-rtx.o ssa.o bb-reorder.o   \
  sibcall.o conflict.o timevar.o ifcvt.o dominance.o dependence.o dce.o \
- sched-vis.o sched-deps.o hashtab.o
+ sched-vis.o sched-deps.o sched-rgn.o hashtab.o
 
 BACKEND = toplev.o libbackend.a
 
@@ -1458,6 +1458,9 @@ haifa-sched.o : haifa-sched.c $(CONFIG_H) system.h $(RTL_H) sched-int.h \
 sched-deps.o : haifa-sched.c $(CONFIG_H) system.h $(RTL_H) sched-int.h \
    $(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h flags.h insn-config.h function.h \
    $(INSN_ATTR_H) toplev.h $(RECOG_H) except.h
+sched-rgn.o : haifa-sched.c $(CONFIG_H) system.h $(RTL_H) sched-int.h \
+   $(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h flags.h insn-config.h function.h \
+   $(INSN_ATTR_H) toplev.h $(RECOG_H) except.h
 sched-vis.o : sched-vis.c $(CONFIG_H) system.h $(RTL_H) sched-int.h \
    $(INSN_ATTR_H) $(REGS_H)
 final.o : final.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h intl.h \

gcc/sched-int.h

@@ -184,13 +184,35 @@ struct haifa_insn_data
 
 extern struct haifa_insn_data *h_i_d;
 
-/* Accessor macros for h_i_d.  There are more in haifa-sched.c.  */
+/* Accessor macros for h_i_d.  There are more in haifa-sched.c and
+   sched-rgn.c.  */
 #define INSN_DEPEND(INSN)	(h_i_d[INSN_UID (INSN)].depend)
 #define INSN_LUID(INSN)		(h_i_d[INSN_UID (INSN)].luid)
 #define CANT_MOVE(insn)		(h_i_d[INSN_UID (insn)].cant_move)
 #define INSN_DEP_COUNT(INSN)	(h_i_d[INSN_UID (INSN)].dep_count)
+#define INSN_PRIORITY(INSN)	(h_i_d[INSN_UID (INSN)].priority)
+#define INSN_COST(INSN)		(h_i_d[INSN_UID (INSN)].cost)
+#define INSN_UNIT(INSN)		(h_i_d[INSN_UID (INSN)].units)
+#define INSN_REG_WEIGHT(INSN)	(h_i_d[INSN_UID (INSN)].reg_weight)
+
+#define INSN_BLOCKAGE(INSN)	(h_i_d[INSN_UID (INSN)].blockage)
+#define UNIT_BITS		5
+#define BLOCKAGE_MASK		((1 << BLOCKAGE_BITS) - 1)
+#define ENCODE_BLOCKAGE(U, R)			\
+  (((U) << BLOCKAGE_BITS			\
+    | MIN_BLOCKAGE_COST (R)) << BLOCKAGE_BITS	\
+   | MAX_BLOCKAGE_COST (R))
+#define UNIT_BLOCKED(B)		((B) >> (2 * BLOCKAGE_BITS))
+#define BLOCKAGE_RANGE(B)                                                \
+  (((((B) >> BLOCKAGE_BITS) & BLOCKAGE_MASK) << (HOST_BITS_PER_INT / 2)) \
+   | ((B) & BLOCKAGE_MASK))
+
+/* Encodings of the `<name>_unit_blockage_range' function.  */
+#define MIN_BLOCKAGE_COST(R) ((R) >> (HOST_BITS_PER_INT / 2))
+#define MAX_BLOCKAGE_COST(R) ((R) & ((1 << (HOST_BITS_PER_INT / 2)) - 1))
 
 extern FILE *sched_dump;
+extern int sched_verbose;
 
 #ifndef __GNUC__
 #define __inline
@@ -227,7 +249,28 @@ extern void init_dependency_caches PARAMS ((int));
 extern void free_dependency_caches PARAMS ((void));
 
 /* Functions in haifa-sched.c.  */
+extern void get_block_head_tail PARAMS ((int, rtx *, rtx *));
+extern int no_real_insns_p PARAMS ((rtx, rtx));
+
+extern void rm_line_notes PARAMS ((int));
+extern void save_line_notes PARAMS ((int));
+extern void restore_line_notes PARAMS ((int));
+extern void rm_redundant_line_notes PARAMS ((void));
+extern void rm_other_notes PARAMS ((rtx, rtx));
+
+extern int insn_issue_delay PARAMS ((rtx));
+extern int set_priorities PARAMS ((int));
+
+extern void schedule_block PARAMS ((int, int));
+extern void sched_init PARAMS ((FILE *));
+extern void sched_finish PARAMS ((void));
+
+extern void ready_add PARAMS ((struct ready_list *, rtx));
+
+/* The following are exported for the benefit of debugging functions.  It
+   would be nicer to keep them private to haifa-sched.c.  */
 extern int insn_unit PARAMS ((rtx));
+extern int insn_cost PARAMS ((rtx, rtx, rtx));
 extern rtx get_unit_last_insn PARAMS ((int));
 extern int actual_hazard_this_instance PARAMS ((int, int, rtx, int, int));