Index: tree-inline.c
===================================================================
--- tree-inline.c	(revision 114740)
+++ tree-inline.c	(working copy)
@@ -1081,6 +1081,8 @@ setup_one_parameter (copy_body_data *id,
 
       if (rhs == error_mark_node)
 	return;
+	
+      STRIP_USELESS_TYPE_CONVERSION (rhs);
 
       /* We want to use MODIFY_EXPR, not INIT_EXPR here so that we
 	 keep our trees in gimple form.  */
@@ -1267,6 +1269,8 @@ declare_return_variable (copy_body_data 
   use = var;
   if (!lang_hooks.types_compatible_p (TREE_TYPE (var), caller_type))
     use = fold_convert (caller_type, var);
+    
+  STRIP_USELESS_TYPE_CONVERSION (use);
 
  done:
   /* Register the VAR_DECL as the equivalent for the RESULT_DECL; that
Index: testsuite/gcc.dg/tree-ssa/inline-1.c
===================================================================
--- testsuite/gcc.dg/tree-ssa/inline-1.c	(revision 0)
+++ testsuite/gcc.dg/tree-ssa/inline-1.c	(revision 0)
@@ -0,0 +1,25 @@
+/* { dg-do compile } */ 
+/* { dg-options "-O2 -fdump-tree-final_cleanup" } */
+
+
+typedef struct {
+  double min;
+  double max;
+} interval;
+inline interval add(interval x, interval y)  __attribute__((always_inline));
+inline interval add(interval x, interval y)  
+{
+  interval r;
+  r.min = x.min + y.min;
+  r.max = x.max + y.max;
+  return r;
+}
+interval foo (interval a, interval b, interval c)
+{
+  return add (a, add (b, c));
+}
+
+
+/* { dg-final { scan-tree-dump-times "\(struct interval\)" 0 "final_cleanup"} } */
+/* { dg-final { cleanup-tree-dump "final_cleanup" } } */
+