Fix flags for edges from/to entry/exit basic blocks.

	* cgraphunit.c (init_lowered_empty_function):
	Fix flags for new edges.

From-SVN: r182251

gcc/ChangeLog

+2011-12-12  Dmitry Vyukov  <dvyukov@google.com>
+
+	* cgraphunit.c (init_lowered_empty_function):
+	Fix flags for new edges.
+
 2011-12-12  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/51510

gcc/cgraphunit.c

@@ -1459,8 +1459,8 @@ init_lowered_empty_function (tree decl)
 
   /* Create BB for body of the function and connect it properly.  */
   bb = create_basic_block (NULL, (void *) 0, ENTRY_BLOCK_PTR);
-  make_edge (ENTRY_BLOCK_PTR, bb, 0);
-  make_edge (bb, EXIT_BLOCK_PTR, 0);
+  make_edge (ENTRY_BLOCK_PTR, bb, EDGE_FALLTHRU);
+  make_edge (bb, EXIT_BLOCK_PTR, EDGE_FALLTHRU);
 
   return bb;
 }