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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
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