* sched-int.h (ds_to_dk, dk_to_ds): Declare functions.

	
	(struct _dep): New type.
	(dep_t): New typedef.
	(DEP_PRO, DEP_CON, DEP_KIND): New access macros.
	(DEP_STATUS): New access macro.  The macro with the same name was
	renamed to DEP_LINK_STATUS.
	(dep_init): Declare function

	(struct _dep_link): New type.
	(dep_link_t): New typedef.
	(DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
	(DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
	(DEP_LINK_STATUS): New macro.
	(debug_dep_links): New debug function.

	(struct _deps_list): New type.
	(deps_list_t): New typedef.
	(DEPS_LIST_FIRST): New access macro.
	(FOR_EACH_DEP_LINK): New cycle macro.
	(create_deps_list, free_deps_list, delete_deps_list): Declare
	functions.
	(deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
	(find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
	(copy_deps_list_change_con): Ditto.

	(move_dep_link): Declare function.

	(struct _dep_node): New type.
	(dep_node_t): New typedef.
	(DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.

	(struct haifa_insn_data.back_deps): New field to hold backward
	dependencies of the insn.
	(struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
	to deps_list_t.
	(struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
	Change its type	to deps_list_t.
	(INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
	(INSN_DEPEND): Rename to INSN_FORW_DEPS.
	(RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.

	(INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.
	
	(DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.

	(add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
	all callers.
	(dep_cost): Declare.
	
	* sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
	(ds_to_dk, dk_to_ds): New functions.
	
	(init_dep_1): New static function.
	(init_dep): New function.
	(copy_dep): New static function.
	
	(dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
	functions.
	(detach_dep_link): New static function.
	(move_dep_link): New function.
	
	(dep_links_consistent_p, dump_dep_links): New static functions.
	(debug_dep_links): New debugging function.
	
	(deps_obstack, dl_obstack, dn_obstack): New static variables.
	
	(alloc_deps_list, init_deps_list): New static functions.
	(create_deps_list): New function.
	(clear_deps_list): New static function.
	(free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
	(deps_list_consistent_p, dump_deps_list): New static functions.
	(debug_deps_list): New function.
	(add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
	functions.
	(find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.

	(maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
	use new scheduler dependencies lists.
	(add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
	(sched_analyze): Ditto.  Initialize dependencies lists.
	(add_forw_dep, compute_forward_dependences): Update to use new
	scheduler dependencies lists.
	
	(init_dependency_caches): Init deps_obstack.
	(free_dependency_caches): Free deps_obstack.
	
	(adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
	new scheduler dependencies lists.
	(delete_forw_dep, add_or_update_back_forw_dep): Ditto.
	(add_back_forw_dep, delete_back_forw_dep): Ditto.

	* sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
	Update to use new scheduler dependencies lists.
	(is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
	(debug_dependencies): Ditto.
	(schedule_region): Update comments.
	
	* sched-ebb.c (earliest_block_with_similiar_load): Update to use new
	scheduler dependencies lists.
	(schedule_ebb): Update comments.
	
	* rtl.def (DEPS_LIST): Remove.
	
	* lists.c (unused_deps_list): Remove.
	(free_list): Update assertions.
	
	(alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
	(remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.

	* rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
	(remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
	
	* haifa-sched.c (comments): Update.
	(insn_cost1): Remove.  Inline the code into insn_cost ().
	(insn_cost): Update to use new scheduler dependencies lists.  Move
	processing of the dependency cost to dep_cost ().
	(dep_cost): New function.  Use it instead of insn_cost () when
	evaluating cost of the dependency.  Use compatible interface to
	interact with the target.
	(priority): Update to use new scheduler dependencies lists.
	(rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
	with greater number of insns that depend on the insn.
	(schedule_insn): Update to use new scheduler dependencies lists.  Add
	code to free backward dependencies lists.  Inline and optimize code
	from resolve_dep () - see PR28071.
	(ok_for_early_queue_removal): Update to use new scheduler dependencies
	lists.  Update call to targetm.sched.is_costly_dependence hook.
	
	(fix_inter_tick, try_ready, fix_tick_ready): Update to use new
	scheduler dependencies lists.
	
	(resolve_dep): Remove.  Move the logic to schedule_insn ().
	(init_h_i_d): Initialize dependencies lists.
	
	(process_insn_depend_be_in_spec): Rename to
	process_insn_forw_deps_be_in_spec.  Update to use new scheduler
	dependencies lists.
	(add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
	Update to use new scheduler dependencies lists.
	(clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
	
	* ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
	new scheduler dependencies lists.
	(build_intra_loop_deps): Ditto.
	
	* target.h (struct _dep): Declare to use in
	gcc_target.sched.is_costly_dependence.
	(struct gcc_target.sched.adjust_cost): Fix typo.
	(struct gcc_target.sched.is_costly_dependence): Change signature to use
	single dep_t parameter instead of an equivalent triad.
	(struct gcc_target.sched.adjust_cost_2): Remove.

	* target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.

	* reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.

	* doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
	documentation.
	(TARGET_SCHED_ADJUST_COST_2): Remove documentation.

	* doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
	(REG_DEP_TRUE): Document.
	
	* config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
	Change signature to correspond to the targetm.sched.adjust_cost hook.  
	Update use in TARGET_SCHED_ADJUST_COST_2.
	(TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
	(ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
	new scheduler dependencies lists.
	(ia64_gen_check): Ditto.

	* config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
	dependencies lists.
	
	* config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
	signature to correspond to the targetm.sched.is_costly_dependence hook.
	(is_costly_group): Update to use new scheduler dependencies lists.

	* config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
	instead of INSN_COST () macro.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121494 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 25 insertions, 16 deletions

diff --git a/gcc/ddg.c b/gcc/ddg.c
index 3952666a71a..6fbf477b61d 100644
--- a/gcc/ddg.c
+++ b/gcc/ddg.c
@@ -53,7 +53,7 @@ enum edge_flag {NOT_IN_SCC = 0, IN_SCC};
 static void add_backarc_to_ddg (ddg_ptr, ddg_edge_ptr);
 static void add_backarc_to_scc (ddg_scc_ptr, ddg_edge_ptr);
 static void add_scc_to_ddg (ddg_all_sccs_ptr, ddg_scc_ptr);
-static void create_ddg_dependence (ddg_ptr, ddg_node_ptr, ddg_node_ptr, rtx);
+static void create_ddg_dependence (ddg_ptr, ddg_node_ptr, ddg_node_ptr, dep_t);
 static void create_ddg_dep_no_link (ddg_ptr, ddg_node_ptr, ddg_node_ptr,
  				    dep_type, dep_data_type, int);
 static ddg_edge_ptr create_ddg_edge (ddg_node_ptr, ddg_node_ptr, dep_type,
@@ -148,7 +148,7 @@ mem_access_insn_p (rtx insn)
    a ddg_edge and adds it to the given DDG.  */
 static void
 create_ddg_dependence (ddg_ptr g, ddg_node_ptr src_node,
-		       ddg_node_ptr dest_node, rtx link)
+		       ddg_node_ptr dest_node, dep_t link)
 {
   ddg_edge_ptr e;
   int latency, distance = 0;
@@ -166,11 +166,11 @@ create_ddg_dependence (ddg_ptr g, ddg_node_ptr src_node,
   gcc_assert (link);
 
   /* Note: REG_DEP_ANTI applies to MEM ANTI_DEP as well!!  */
-  if (REG_NOTE_KIND (link) == REG_DEP_ANTI)
+  if (DEP_KIND (link) == REG_DEP_ANTI)
     t = ANTI_DEP;
-  else if (REG_NOTE_KIND (link) == REG_DEP_OUTPUT)
+  else if (DEP_KIND (link) == REG_DEP_OUTPUT)
     t = OUTPUT_DEP;
-  latency = insn_cost (src_node->insn, link, dest_node->insn);
+  latency = dep_cost (link);
 
   e = create_ddg_edge (src_node, dest_node, t, dt, latency, distance);
 
@@ -200,15 +200,23 @@ create_ddg_dep_no_link (ddg_ptr g, ddg_node_ptr from, ddg_node_ptr to,
 {
   ddg_edge_ptr e;
   int l;
-  rtx link = alloc_INSN_LIST (to->insn, NULL_RTX);
+  enum reg_note dep_kind;
+  struct _dep _dep, *dep = &_dep;
 
   if (d_t == ANTI_DEP)
-    PUT_REG_NOTE_KIND (link, REG_DEP_ANTI);
+    dep_kind = REG_DEP_ANTI;
   else if (d_t == OUTPUT_DEP)
-    PUT_REG_NOTE_KIND (link, REG_DEP_OUTPUT);
+    dep_kind = REG_DEP_OUTPUT;
+  else
+    {
+      gcc_assert (d_t == TRUE_DEP);
+
+      dep_kind = REG_DEP_TRUE;
+    }
+
+  init_dep (dep, from->insn, to->insn, dep_kind);
 
-  l = insn_cost (from->insn, link, to->insn);
-  free_INSN_LIST_node (link);
+  l = dep_cost (dep);
 
   e = create_ddg_edge (from, to, d_t, d_dt, l, distance);
   if (distance > 0)
@@ -375,7 +383,8 @@ build_intra_loop_deps (ddg_ptr g)
   int i;
   /* Hold the dependency analysis state during dependency calculations.  */
   struct deps tmp_deps;
-  rtx head, tail, link;
+  rtx head, tail;
+  dep_link_t link;
 
   /* Build the dependence information, using the sched_analyze function.  */
   init_deps_global ();
@@ -394,16 +403,16 @@ build_intra_loop_deps (ddg_ptr g)
       if (! INSN_P (dest_node->insn))
 	continue;
 
-      for (link = LOG_LINKS (dest_node->insn); link; link = XEXP (link, 1))
+      FOR_EACH_DEP_LINK (link, INSN_BACK_DEPS (dest_node->insn))
 	{
-	  ddg_node_ptr src_node = get_node_of_insn (g, XEXP (link, 0));
+	  dep_t dep = DEP_LINK_DEP (link);
+	  ddg_node_ptr src_node = get_node_of_insn (g, DEP_PRO (dep));
 
 	  if (!src_node)
 	    continue;
 
-      	  add_forw_dep (dest_node->insn, link);
-	  create_ddg_dependence (g, src_node, dest_node,
-				 INSN_DEPEND (src_node->insn));
+      	  add_forw_dep (link);
+	  create_ddg_dependence (g, src_node, dest_node, dep);
 	}
 
       /* If this insn modifies memory, add an edge to all insns that access