From ca1dcc7740a2532bae1d898dd326b43da54a2c54 Mon Sep 17 00:00:00 2001
From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 20 May 2011 19:01:53 +0000
Subject: [PATCH] 	PR c++/48873
 	* tree.c (stabilize_expr): Don't make gratuitous copies of classes.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@173970 138bc75d-0d04-0410-961f-82ee72b054a4

index f04fd23..16b9ca1 100644
--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -3124,7 +3124,8 @@ stabilize_expr (tree exp, tree* initp)
 
   if (!TREE_SIDE_EFFECTS (exp))
     init_expr = NULL_TREE;
-  else if (!TYPE_NEEDS_CONSTRUCTING (TREE_TYPE (exp))
+  else if ((!TYPE_NEEDS_CONSTRUCTING (TREE_TYPE (exp))
+	    && !TYPE_HAS_NONTRIVIAL_DESTRUCTOR (TREE_TYPE (exp)))
 	   || !lvalue_or_rvalue_with_address_p (exp))
     {
       init_expr = get_target_expr (exp);
new file mode 100644
index 0000000..f827857
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/new32.C
@@ -0,0 +1,16 @@
+// PR c++/48873
+
+#include <new>
+
+struct D {
+private:
+  ~D();
+};
+
+template<class T>
+T& create();
+
+void f()
+{
+  D* dp = new (((void*) 0)) D(create<D>()); // #
+}
-- 
1.7.0.4