tree-if-conv.c (main_tree_if_conversion): Move bb under ENABLE_CHECKING.

2012-04-24  Richard Guenther  <rguenther@suse.de>

	* tree-if-conv.c (main_tree_if_conversion): Move bb under
	ENABLE_CHECKING.

From-SVN: r186763

gcc/ChangeLog

-2012-02-24  Jim Meyering  <meyering@redhat.com>
+2012-04-24  Richard Guenther  <rguenther@suse.de>
+
+	* tree-if-conv.c (main_tree_if_conversion): Move bb under
+	ENABLE_CHECKING.
+
+2012-04-24  Jim Meyering  <meyering@redhat.com>
 
 	* genattrtab.c (gen_attr): Avoid NULL-deref after diagnosing
 	absence of an define_enum call.

gcc/tree-if-conv.c

@@ -1779,7 +1779,6 @@ main_tree_if_conversion (void)
   struct loop *loop;
   bool changed = false;
   unsigned todo = 0;
-  basic_block bb;
 
   if (number_of_loops () <= 1)
     return 0;
@@ -1796,8 +1795,11 @@ main_tree_if_conversion (void)
   free_dominance_info (CDI_POST_DOMINATORS);
 
 #ifdef ENABLE_CHECKING
-  FOR_EACH_BB (bb)
-    gcc_assert (!bb->aux);
+  {
+    basic_block bb;
+    FOR_EACH_BB (bb)
+      gcc_assert (!bb->aux);
+  }
 #endif
 
   return todo;