tree-ssa-alias.c (set_initial_properties, [...]): Use VEC instead of VARRAY.

* tree-ssa-alias.c (set_initial_properties, init_alias_info,
	delete_alias_info, compute_flow_sensitive_aliasing,
	group_aliases): Use VEC instead of VARRAY.
	* tree-ssa-structalias.c (update_alias_info): Likewise.
	* tree-ssa-structalias.h (alias_info): Change the type of
	processed_ptrs to VEC(tree,heap) *.

From-SVN: r112903

gcc/ChangeLog

@@ -1,3 +1,12 @@
+2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
+
+	* tree-ssa-alias.c (set_initial_properties, init_alias_info,
+	delete_alias_info, compute_flow_sensitive_aliasing,
+	group_aliases): Use VEC instead of VARRAY.
+	* tree-ssa-structalias.c (update_alias_info): Likewise.
+	* tree-ssa-structalias.h (alias_info): Change the type of
+	processed_ptrs to VEC(tree,heap) *.
+
 2006-04-12  J"orn Rennecke <joern.rennecke@st.com>
 
 	PR target/27060

gcc/tree-ssa-alias.c

@@ -314,6 +314,7 @@ set_initial_properties (struct alias_info *ai)
   unsigned int i;
   referenced_var_iterator rvi;
   tree var;
+  tree ptr;
 
   FOR_EACH_REFERENCED_VAR (var, rvi)
     {
@@ -334,9 +335,8 @@ set_initial_properties (struct alias_info *ai)
 	}
     }
 
-  for (i = 0; i < VARRAY_ACTIVE_SIZE (ai->processed_ptrs); i++)
+  for (i = 0; VEC_iterate (tree, ai->processed_ptrs, i, ptr); i++)
     {
-      tree ptr = VARRAY_TREE (ai->processed_ptrs, i);
       struct ptr_info_def *pi = SSA_NAME_PTR_INFO (ptr);
       var_ann_t v_ann = var_ann (SSA_NAME_VAR (ptr));
       
@@ -859,7 +859,7 @@ init_alias_info (void)
   ai = XCNEW (struct alias_info);
   ai->ssa_names_visited = sbitmap_alloc (num_ssa_names);
   sbitmap_zero (ai->ssa_names_visited);
-  VARRAY_TREE_INIT (ai->processed_ptrs, 50, "processed_ptrs");
+  ai->processed_ptrs = VEC_alloc (tree, heap, 50);
   ai->written_vars = BITMAP_ALLOC (&alias_obstack);
   ai->dereferenced_ptrs_store = BITMAP_ALLOC (&alias_obstack);
   ai->dereferenced_ptrs_load = BITMAP_ALLOC (&alias_obstack);
@@ -943,7 +943,7 @@ delete_alias_info (struct alias_info *ai)
   tree var;
 
   sbitmap_free (ai->ssa_names_visited);
-  ai->processed_ptrs = NULL;
+  VEC_free (tree, heap, ai->processed_ptrs);
 
   for (i = 0; i < ai->num_addressable_vars; i++)
     free (ai->addressable_vars[i]);
@@ -1085,20 +1085,19 @@ static void
 compute_flow_sensitive_aliasing (struct alias_info *ai)
 {
   size_t i;
+  tree ptr;
   
-  for (i = 0; i < VARRAY_ACTIVE_SIZE (ai->processed_ptrs); i++)
+  for (i = 0; VEC_iterate (tree, ai->processed_ptrs, i, ptr); i++)
     {
-      tree ptr = VARRAY_TREE (ai->processed_ptrs, i);
       if (!find_what_p_points_to (ptr))
 	set_pt_anything (ptr);
     }
 
   create_name_tags ();
 
-  for (i = 0; i < VARRAY_ACTIVE_SIZE (ai->processed_ptrs); i++)
+  for (i = 0; VEC_iterate (tree, ai->processed_ptrs, i, ptr); i++)
     {
       unsigned j;
-      tree ptr = VARRAY_TREE (ai->processed_ptrs, i);
       struct ptr_info_def *pi = SSA_NAME_PTR_INFO (ptr);
       var_ann_t v_ann = var_ann (SSA_NAME_VAR (ptr));
       bitmap_iterator bi;
@@ -1411,6 +1410,7 @@ static void
 group_aliases (struct alias_info *ai)
 {
   size_t i;
+  tree ptr;
 
   /* Sort the POINTERS array in descending order of contributed
      virtual operands.  */
@@ -1478,10 +1478,9 @@ group_aliases (struct alias_info *ai)
      into p_5->field, but that is wrong because there have been
      modifications to 'SMT.20' in between.  To prevent this we have to
      replace 'a' with 'SMT.20' in the name tag of p_5.  */
-  for (i = 0; i < VARRAY_ACTIVE_SIZE (ai->processed_ptrs); i++)
+  for (i = 0; VEC_iterate (tree, ai->processed_ptrs, i, ptr); i++)
     {
       size_t j;
-      tree ptr = VARRAY_TREE (ai->processed_ptrs, i);
       tree name_tag = SSA_NAME_PTR_INFO (ptr)->name_mem_tag;
       VEC(tree,gc) *aliases;
       tree alias;

gcc/tree-ssa-structalias.c

@@ -3041,7 +3041,7 @@ update_alias_info (tree stmt, struct alias_info *ai)
       if (!TEST_BIT (ai->ssa_names_visited, SSA_NAME_VERSION (op)))
 	{
 	  SET_BIT (ai->ssa_names_visited, SSA_NAME_VERSION (op));
-	  VARRAY_PUSH_TREE (ai->processed_ptrs, op);
+	  VEC_safe_push (tree, heap, ai->processed_ptrs, op);
 	}
 
       /* If STMT is a PHI node, then it will not have pointer

gcc/tree-ssa-structalias.h

@@ -34,7 +34,7 @@ struct alias_info
   sbitmap ssa_names_visited;
 
   /* Array of SSA_NAME pointers processed by the points-to collector.  */
-  varray_type processed_ptrs;
+  VEC(tree,heap) *processed_ptrs;
 
   /* ADDRESSABLE_VARS contains all the global variables and locals that
      have had their address taken.  */