tree-scalar-evolution.c (get_exit_conditions_rec, [...]): Use VEC instead of VARRAY.

	* tree-scalar-evolution.c (get_exit_conditions_rec,
	select_loops_exit_conditions,
	number_of_iterations_for_all_loops,
	analyze_scalar_evolution_for_all_loop_phi_nodes,
	scev_analysis): Use VEC instead of VARRAY.

From-SVN: r99093

gcc/ChangeLog

+2005-05-02  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* tree-scalar-evolution.c (get_exit_conditions_rec,
+	select_loops_exit_conditions,
+	number_of_iterations_for_all_loops,
+	analyze_scalar_evolution_for_all_loop_phi_nodes,
+	scev_analysis): Use VEC instead of VARRAY.
+
 2005-05-02  Michael Matz  <matz@suse.de>
 
 	PR c++/19542

gcc/tree-scalar-evolution.c

@@ -1012,7 +1012,7 @@ get_loop_exit_condition (struct loop *loop)
 
 static void 
 get_exit_conditions_rec (struct loop *loop, 
-			 varray_type *exit_conditions)
+			 VEC(tree,heap) **exit_conditions)
 {
   if (!loop)
     return;
@@ -1026,7 +1026,7 @@ get_exit_conditions_rec (struct loop *loop,
       tree loop_condition = get_loop_exit_condition (loop);
       
       if (loop_condition)
-	VARRAY_PUSH_TREE (*exit_conditions, loop_condition);
+	VEC_safe_push (tree, heap, *exit_conditions, loop_condition);
     }
 }
 
@@ -1035,7 +1035,7 @@ get_exit_conditions_rec (struct loop *loop,
 
 static void
 select_loops_exit_conditions (struct loops *loops, 
-			      varray_type *exit_conditions)
+			      VEC(tree,heap) **exit_conditions)
 {
   struct loop *function_body = loops->parray[0];
   
@@ -2274,16 +2274,16 @@ end:
    from the EXIT_CONDITIONS array.  */
 
 static void 
-number_of_iterations_for_all_loops (varray_type exit_conditions)
+number_of_iterations_for_all_loops (VEC(tree,heap) **exit_conditions)
 {
   unsigned int i;
   unsigned nb_chrec_dont_know_loops = 0;
   unsigned nb_static_loops = 0;
+  tree cond;
   
-  for (i = 0; i < VARRAY_ACTIVE_SIZE (exit_conditions); i++)
+  for (i = 0; VEC_iterate (tree, *exit_conditions, i, cond); i++)
     {
-      tree res = number_of_iterations_in_loop 
-	(loop_containing_stmt (VARRAY_TREE (exit_conditions, i)));
+      tree res = number_of_iterations_in_loop (loop_containing_stmt (cond));
       if (chrec_contains_undetermined (res))
 	nb_chrec_dont_know_loops++;
       else
@@ -2426,20 +2426,21 @@ gather_chrec_stats (tree chrec, struct chrec_stats *stats)
    index.  This allows the parallelization of the loop.  */
 
 static void 
-analyze_scalar_evolution_for_all_loop_phi_nodes (varray_type exit_conditions)
+analyze_scalar_evolution_for_all_loop_phi_nodes (VEC(tree,heap) **exit_conditions)
 {
   unsigned int i;
   struct chrec_stats stats;
+  tree cond;
   
   reset_chrecs_counters (&stats);
   
-  for (i = 0; i < VARRAY_ACTIVE_SIZE (exit_conditions); i++)
+  for (i = 0; VEC_iterate (tree, *exit_conditions, i, cond); i++)
     {
       struct loop *loop;
       basic_block bb;
       tree phi, chrec;
       
-      loop = loop_containing_stmt (VARRAY_TREE (exit_conditions, i));
+      loop = loop_containing_stmt (cond);
       bb = loop->header;
       
       for (phi = phi_nodes (bb); phi; phi = PHI_CHAIN (phi))
@@ -2604,16 +2605,16 @@ simple_iv (struct loop *loop, tree stmt, tree op, tree *base, tree *step,
 void
 scev_analysis (void)
 {
-  varray_type exit_conditions;
+  VEC(tree,heap) *exit_conditions;
   
-  VARRAY_GENERIC_PTR_INIT (exit_conditions, 37, "exit_conditions");
+  exit_conditions = VEC_alloc (tree, heap, 37);
   select_loops_exit_conditions (current_loops, &exit_conditions);
 
   if (dump_file && (dump_flags & TDF_STATS))
-    analyze_scalar_evolution_for_all_loop_phi_nodes (exit_conditions);
+    analyze_scalar_evolution_for_all_loop_phi_nodes (&exit_conditions);
   
-  number_of_iterations_for_all_loops (exit_conditions);
-  VARRAY_CLEAR (exit_conditions);
+  number_of_iterations_for_all_loops (&exit_conditions);
+  VEC_free (tree, heap, exit_conditions);
 }
 
 /* Finalize the scalar evolution analysis.  */