tree-ssa-pre.c (compute_antic_aux): Use malloc'd worklist, to avoid generating useless garbage.

2004-09-20  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-pre.c (compute_antic_aux): Use malloc'd worklist, to avoid
	generating useless garbage.

From-SVN: r87760

gcc/ChangeLog

+2004-09-20  Daniel Berlin  <dberlin@dberlin.org>
+
+	* tree-ssa-pre.c (compute_antic_aux): Use malloc'd worklist, to avoid 
+	generating useless garbage.
+
 2004-09-20  Paolo Bonzini  <bonzini@gnu.org>
 
 	* builtins.c (fold_builtin): Call the new omonymous

gcc/tree-ssa-pre.c

@@ -510,8 +510,10 @@ bitmap_insert_into_set (bitmap_set_t set, tree expr)
   
   gcc_assert (val);
   if (!is_gimple_min_invariant (val))
+  {
     bitmap_set_bit (set->values, VALUE_HANDLE_ID (val));
-  bitmap_set_bit (set->expressions, SSA_NAME_VERSION (expr));
+    bitmap_set_bit (set->expressions, SSA_NAME_VERSION (expr));
+  }
 }
 
 /* Insert EXPR into SET.  */
@@ -1098,6 +1100,8 @@ clean (value_set_t set)
     }
 }
 
+DEF_VEC_MALLOC_P (basic_block);
+
 /* Compute the ANTIC set for BLOCK.
 
 ANTIC_OUT[BLOCK] = intersection of ANTIC_IN[b] for all succ(BLOCK), if
@@ -1164,24 +1168,23 @@ compute_antic_aux (basic_block block)
      them.  */
   else
     {
-      varray_type worklist;
+      VEC (basic_block) * worklist;
       edge e;
       size_t i;
       basic_block bprime, first;
 
-      VARRAY_BB_INIT (worklist, 1, "succ");
+      worklist = VEC_alloc (basic_block, 2);
       e = block->succ;
       while (e)
 	{
-	  VARRAY_PUSH_BB (worklist, e->dest);
+	  VEC_safe_push (basic_block, worklist, e->dest);
 	  e = e->succ_next;
 	}
-      first = VARRAY_BB (worklist, 0);
+      first = VEC_index (basic_block, worklist, 0);
       set_copy (ANTIC_OUT, ANTIC_IN (first));
 
-      for (i = 1; i < VARRAY_ACTIVE_SIZE (worklist); i++)
+      for (i = 1; VEC_iterate (basic_block, worklist, i, bprime); i++)
 	{
-	  bprime = VARRAY_BB (worklist, i);
 	  node = ANTIC_OUT->head;
 	  while (node)
 	    {
@@ -1193,7 +1196,7 @@ compute_antic_aux (basic_block block)
 	      node = next;
 	    }
 	}
-      VARRAY_CLEAR (worklist);
+      VEC_free (basic_block, worklist);
     }
 
   /* Generate ANTIC_OUT - TMP_GEN */