[ira-improv] patch introducing frequently used idiom

Index: ira-int.h
===================================================================
--- ira-int.h	(revision 162981)
+++ ira-int.h	(working copy)
@@ -478,6 +478,13 @@  struct ira_emit_data
 /* Data used to emit live range split insns and to flattening IR.  */
 extern ira_emit_data_t ira_allocno_emit_data;
 
+/* Abbreviation for frequent emit data access.  */
+static inline rtx
+allocno_emit_reg (ira_allocno_t a)
+{
+  return ALLOCNO_EMIT_DATA (a)->reg;
+}
+
 #define OBJECT_ALLOCNO(O) ((O)->allocno)
 #define OBJECT_SUBWORD(O) ((O)->subword)
 #define OBJECT_CONFLICT_ARRAY(O) ((O)->conflicts_array)
Index: ira-emit.c
===================================================================
--- ira-emit.c	(revision 162981)
+++ ira-emit.c	(working copy)
@@ -238,7 +238,7 @@  change_regs (rtx *loc)
 	return false;
       if (ira_curr_regno_allocno_map[regno] == NULL)
 	return false;
-      reg = ALLOCNO_EMIT_DATA (ira_curr_regno_allocno_map[regno])->reg;
+      reg = allocno_emit_reg (ira_curr_regno_allocno_map[regno]);
       if (reg == *loc)
 	return false;
       *loc = reg;
@@ -413,14 +413,14 @@  store_can_be_removed_p (ira_allocno_t sr
   ira_assert (ALLOCNO_CAP_MEMBER (src_allocno) == NULL
 	      && ALLOCNO_CAP_MEMBER (dest_allocno) == NULL);
   orig_regno = ALLOCNO_REGNO (src_allocno);
-  regno = REGNO (ALLOCNO_EMIT_DATA (dest_allocno)->reg);
+  regno = REGNO (allocno_emit_reg (dest_allocno));
   for (node = ALLOCNO_LOOP_TREE_NODE (src_allocno);
        node != NULL;
        node = node->parent)
     {
       a = node->regno_allocno_map[orig_regno];
       ira_assert (a != NULL);
-      if (REGNO (ALLOCNO_EMIT_DATA (a)->reg) == (unsigned) regno)
+      if (REGNO (allocno_emit_reg (a)) == (unsigned) regno)
 	/* We achieved the destination and everything is ok.  */
 	return true;
       else if (bitmap_bit_p (node->modified_regnos, orig_regno))
@@ -464,8 +464,8 @@  generate_edge_moves (edge e)
       {
 	src_allocno = src_map[regno];
 	dest_allocno = dest_map[regno];
-	if (REGNO (ALLOCNO_EMIT_DATA (src_allocno)->reg)
-	    == REGNO (ALLOCNO_EMIT_DATA (dest_allocno)->reg))
+	if (REGNO (allocno_emit_reg (src_allocno))
+	    == REGNO (allocno_emit_reg (dest_allocno)))
 	  continue;
 	/* Remove unnecessary stores at the region exit.  We should do
 	   this for readonly memory for sure and this is guaranteed by
@@ -567,9 +567,9 @@  change_loop (ira_loop_tree_node_t node)
 		  || ira_reg_equiv_invariant_p[regno]
 		  || ira_reg_equiv_const[regno] != NULL_RTX))
 	    continue;
-	  original_reg = ALLOCNO_EMIT_DATA (allocno)->reg;
+	  original_reg = allocno_emit_reg (allocno);
 	  if (parent_allocno == NULL
-	      || (REGNO (ALLOCNO_EMIT_DATA (parent_allocno)->reg)
+	      || (REGNO (allocno_emit_reg (parent_allocno))
 		  == REGNO (original_reg)))
 	    {
 	      if (internal_flag_ira_verbose > 3 && ira_dump_file)
@@ -598,8 +598,7 @@  change_loop (ira_loop_tree_node_t node)
       if (! used_p)
 	continue;
       bitmap_set_bit (renamed_regno_bitmap, regno);
-      set_allocno_reg (allocno,
-		       create_new_reg (ALLOCNO_EMIT_DATA (allocno)->reg));
+      set_allocno_reg (allocno, create_new_reg (allocno_emit_reg (allocno)));
     }
 }
 
@@ -615,7 +614,7 @@  set_allocno_somewhere_renamed_p (void)
     {
       regno = ALLOCNO_REGNO (allocno);
       if (bitmap_bit_p (renamed_regno_bitmap, regno)
-	  && REGNO (ALLOCNO_EMIT_DATA (allocno)->reg) == regno)
+	  && REGNO (allocno_emit_reg (allocno)) == regno)
 	ALLOCNO_EMIT_DATA (allocno)->somewhere_renamed_p = true;
     }
 }
@@ -805,7 +804,7 @@  modify_move_list (move_t list)
 		ALLOCNO_ASSIGNED_P (new_allocno) = true;
 		ALLOCNO_HARD_REGNO (new_allocno) = -1;
 		ALLOCNO_EMIT_DATA (new_allocno)->reg
-		  = create_new_reg (ALLOCNO_EMIT_DATA (set_move->to)->reg);
+		  = create_new_reg (allocno_emit_reg (set_move->to));
 
 		/* Make it possibly conflicting with all earlier
 		   created allocnos.  Cases where temporary allocnos
@@ -828,7 +827,7 @@  modify_move_list (move_t list)
 		  fprintf (ira_dump_file,
 			   "    Creating temporary allocno a%dr%d\n",
 			   ALLOCNO_NUM (new_allocno),
-			   REGNO (ALLOCNO_EMIT_DATA (new_allocno)->reg));
+			   REGNO (allocno_emit_reg (new_allocno)));
 	      }
 	}
       if ((hard_regno = ALLOCNO_HARD_REGNO (to)) < 0)
@@ -864,8 +863,8 @@  emit_move_list (move_t list, int freq)
   for (; list != NULL; list = list->next)
     {
       start_sequence ();
-      emit_move_insn (ALLOCNO_EMIT_DATA (list->to)->reg,
-		      ALLOCNO_EMIT_DATA (list->from)->reg);
+      emit_move_insn (allocno_emit_reg (list->to),
+		      allocno_emit_reg (list->from));
       list->insn = get_insns ();
       end_sequence ();
       /* The reload needs to have set up insn codes.  If the reload
@@ -1029,7 +1028,7 @@  add_range_and_copies_from_move_list (mov
 	    {
 	      if (internal_flag_ira_verbose > 2 && ira_dump_file != NULL)
 		fprintf (ira_dump_file, "    Allocate conflicts for a%dr%d\n",
-			 ALLOCNO_NUM (to), REGNO (ALLOCNO_EMIT_DATA (to)->reg));
+			 ALLOCNO_NUM (to), REGNO (allocno_emit_reg (to)));
 	      ira_allocate_object_conflicts (to_obj, n);
 	    }
 	}
@@ -1042,9 +1041,9 @@  add_range_and_copies_from_move_list (mov
       if (internal_flag_ira_verbose > 2 && ira_dump_file != NULL)
 	fprintf (ira_dump_file, "    Adding cp%d:a%dr%d-a%dr%d\n",
 		 cp->num, ALLOCNO_NUM (cp->first),
-		 REGNO (ALLOCNO_EMIT_DATA (cp->first)->reg),
+		 REGNO (allocno_emit_reg (cp->first)),
 		 ALLOCNO_NUM (cp->second),
-		 REGNO (ALLOCNO_EMIT_DATA (cp->second)->reg));
+		 REGNO (allocno_emit_reg (cp->second)));
 
       nr = ALLOCNO_NUM_OBJECTS (from);
       for (i = 0; i < nr; i++)
@@ -1058,7 +1057,7 @@  add_range_and_copies_from_move_list (mov
 		fprintf (ira_dump_file,
 			 "    Adding range [%d..%d] to allocno a%dr%d\n",
 			 start, ira_max_point, ALLOCNO_NUM (from),
-			 REGNO (ALLOCNO_EMIT_DATA (from)->reg));
+			 REGNO (allocno_emit_reg (from)));
 	    }
 	  else
 	    {
@@ -1067,7 +1066,7 @@  add_range_and_copies_from_move_list (mov
 		fprintf (ira_dump_file,
 			 "    Adding range [%d..%d] to allocno a%dr%d\n",
 			 r->start, ira_max_point, ALLOCNO_NUM (from),
-			 REGNO (ALLOCNO_EMIT_DATA (from)->reg));
+			 REGNO (allocno_emit_reg (from)));
 	    }
 	}
       ira_max_point++;
@@ -1094,7 +1093,7 @@  add_range_and_copies_from_move_list (mov
 		fprintf (ira_dump_file,
 			 "    Adding range [%d..%d] to allocno a%dr%d\n",
 			 r->start, r->finish, ALLOCNO_NUM (move->to),
-			 REGNO (ALLOCNO_EMIT_DATA (move->to)->reg));
+			 REGNO (allocno_emit_reg (move->to)));
 	    }
 	}
     }
@@ -1118,7 +1117,7 @@  add_range_and_copies_from_move_list (mov
 	   "    Adding range [%d..%d] to live through %s allocno a%dr%d\n",
 	   start, ira_max_point - 1,
 	   to != NULL ? "upper level" : "",
-	   ALLOCNO_NUM (a), REGNO (ALLOCNO_EMIT_DATA (a)->reg));
+	   ALLOCNO_NUM (a), REGNO (allocno_emit_reg (a)));
     }
 }
 
Index: ira-build.c
===================================================================
--- ira-build.c	(revision 162981)
+++ ira-build.c	(working copy)
@@ -2625,7 +2625,7 @@  copy_info_to_removed_store_destinations 
        a != NULL;
        a = ALLOCNO_NEXT_REGNO_ALLOCNO (a))
     {
-      if (a != regno_top_level_allocno_map[REGNO (ALLOCNO_EMIT_DATA (a)->reg)])
+      if (a != regno_top_level_allocno_map[REGNO (allocno_emit_reg (a))])
 	/* This allocno will be removed.  */
 	continue;
 
@@ -2635,9 +2635,9 @@  copy_info_to_removed_store_destinations 
 	   parent != NULL;
 	   parent = parent->parent)
 	if ((parent_a = parent->regno_allocno_map[regno]) == NULL
-	    || (parent_a == regno_top_level_allocno_map[REGNO
-							(ALLOCNO_EMIT_DATA
-							 (parent_a)->reg)]
+	    || (parent_a
+		== regno_top_level_allocno_map[REGNO
+					       (allocno_emit_reg (parent_a))]
 		&& ALLOCNO_EMIT_DATA (parent_a)->mem_optimized_dest_p))
 	  break;
       if (parent == NULL || parent_a == NULL)
@@ -2787,8 +2787,7 @@  ira_flattening (int max_regno_before_emi
 	  ira_allocno_object_iterator oi;
 	  ira_object_t obj;
 
-	  if (a != regno_top_level_allocno_map[REGNO (ALLOCNO_EMIT_DATA (a)
-						      ->reg)]
+	  if (a != regno_top_level_allocno_map[REGNO (allocno_emit_reg (a))]
 	      || ALLOCNO_CAP_MEMBER (a) != NULL)
 	    continue;
 	  FOR_EACH_ALLOCNO_OBJECT (a, obj, oi)
@@ -2806,8 +2805,7 @@  ira_flattening (int max_regno_before_emi
 	      ira_object_t obj = r->object;
 
 	      a = OBJECT_ALLOCNO (obj);
-	      if (a != regno_top_level_allocno_map[REGNO
-						   (ALLOCNO_EMIT_DATA (a)->reg)]
+	      if (a != regno_top_level_allocno_map[REGNO (allocno_emit_reg (a))]
 		  || ALLOCNO_CAP_MEMBER (a) != NULL)
 		continue;
 
@@ -2844,17 +2842,17 @@  ira_flattening (int max_regno_before_emi
 	      (ira_dump_file, "      Remove cp%d:%c%dr%d-%c%dr%d\n",
 	       cp->num, ALLOCNO_CAP_MEMBER (cp->first) != NULL ? 'c' : 'a',
 	       ALLOCNO_NUM (cp->first),
-	       REGNO (ALLOCNO_EMIT_DATA (cp->first)->reg),
+	       REGNO (allocno_emit_reg (cp->first)),
 	       ALLOCNO_CAP_MEMBER (cp->second) != NULL ? 'c' : 'a',
 	       ALLOCNO_NUM (cp->second),
-	       REGNO (ALLOCNO_EMIT_DATA (cp->second)->reg));
+	       REGNO (allocno_emit_reg (cp->second)));
 	  cp->loop_tree_node = NULL;
 	  continue;
 	}
-      first = regno_top_level_allocno_map[REGNO (ALLOCNO_EMIT_DATA
-						 (cp->first)->reg)];
-      second = regno_top_level_allocno_map[REGNO (ALLOCNO_EMIT_DATA
-						  (cp->second)->reg)];
+      first
+	= regno_top_level_allocno_map[REGNO (allocno_emit_reg (cp->first))];
+      second
+	= regno_top_level_allocno_map[REGNO (allocno_emit_reg (cp->second))];
       node = cp->loop_tree_node;
       if (node == NULL)
 	keep_p = true; /* It copy generated in ira-emit.c.  */
@@ -2864,10 +2862,10 @@  ira_flattening (int max_regno_before_emi
 	     which we will have different pseudos.  */
 	  node_first = node->regno_allocno_map[ALLOCNO_REGNO (cp->first)];
 	  node_second = node->regno_allocno_map[ALLOCNO_REGNO (cp->second)];
-	  keep_p = ((REGNO (ALLOCNO_EMIT_DATA (first)->reg)
-		     == REGNO (ALLOCNO_EMIT_DATA (node_first)->reg))
-		     && (REGNO (ALLOCNO_EMIT_DATA (second)->reg)
-			 == REGNO (ALLOCNO_EMIT_DATA (node_second)->reg)));
+	  keep_p = ((REGNO (allocno_emit_reg (first))
+		     == REGNO (allocno_emit_reg (node_first)))
+		     && (REGNO (allocno_emit_reg (second))
+			 == REGNO (allocno_emit_reg (node_second))));
 	}
       if (keep_p)
 	{
@@ -2881,25 +2879,25 @@  ira_flattening (int max_regno_before_emi
 	  if (internal_flag_ira_verbose > 4 && ira_dump_file != NULL)
 	    fprintf (ira_dump_file, "      Remove cp%d:a%dr%d-a%dr%d\n",
 		     cp->num, ALLOCNO_NUM (cp->first),
-		     REGNO (ALLOCNO_EMIT_DATA (cp->first)->reg),
+		     REGNO (allocno_emit_reg (cp->first)),
 		     ALLOCNO_NUM (cp->second),
-		     REGNO (ALLOCNO_EMIT_DATA (cp->second)->reg));
+		     REGNO (allocno_emit_reg (cp->second)));
 	}
     }
   /* Remove unnecessary allocnos on lower levels of the loop tree.  */
   FOR_EACH_ALLOCNO (a, ai)
     {
-      if (a != regno_top_level_allocno_map[REGNO (ALLOCNO_EMIT_DATA (a)->reg)]
+      if (a != regno_top_level_allocno_map[REGNO (allocno_emit_reg (a))]
 	  || ALLOCNO_CAP_MEMBER (a) != NULL)
 	{
 	  if (internal_flag_ira_verbose > 4 && ira_dump_file != NULL)
 	    fprintf (ira_dump_file, "      Remove a%dr%d\n",
-		     ALLOCNO_NUM (a), REGNO (ALLOCNO_EMIT_DATA (a)->reg));
+		     ALLOCNO_NUM (a), REGNO (allocno_emit_reg (a)));
 	  finish_allocno (a);
 	  continue;
 	}
       ALLOCNO_LOOP_TREE_NODE (a) = ira_loop_tree_root;
-      ALLOCNO_REGNO (a) = REGNO (ALLOCNO_EMIT_DATA (a)->reg);
+      ALLOCNO_REGNO (a) = REGNO (allocno_emit_reg (a));
       ALLOCNO_CAP (a) = NULL;
       /* Restore updated costs for assignments from reload.  */
       ALLOCNO_UPDATED_MEMORY_COST (a) = ALLOCNO_MEMORY_COST (a);