re PR c++/23372 (Temporary aggregate copy not elided when passing parameters by value)

        PR c++/23372
        * call.c (build_over_call): Don't make a copy here if build_call
        will make one too.

From-SVN: r116342

gcc/cp/ChangeLog

+2006-08-22  Jason Merrill  <jason@redhat.com>
+
+	PR c++/23372
+	* call.c (build_over_call): Don't make a copy here if build_call 
+	will make one too.
+
 2006-08-22  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR C++/28450

gcc/cp/call.c

@@ -4847,6 +4847,12 @@ build_over_call (struct z_candidate *cand, int flags)
       tree type = TREE_VALUE (parm);
 
       conv = convs[i];
+
+      /* Don't make a copy here if build_call is going to.  */
+      if (conv->kind == ck_rvalue
+	  && !TREE_ADDRESSABLE (complete_type (type)))
+	conv = conv->u.next;
+
       val = convert_like_with_context
 	(conv, TREE_VALUE (arg), fn, i - is_method);