PR c++/78139 - destructor needed by new-expression

* call.c (build_special_member_call): Use tf_no_cleanup.

From-SVN: r245612

gcc/cp/ChangeLog

@@ -1,5 +1,8 @@
 2017-02-19  Jason Merrill  <jason@redhat.com>
 
+	PR c++/78139 - destructor needed by new-expression
+	* call.c (build_special_member_call): Use tf_no_cleanup.
+
 	PR c++/78282 - auto template and pack expansion
 	* pt.c (find_parameter_packs_r): Don't walk into the type of
 	templates other than template template-parameters.

gcc/cp/call.c

@@ -8356,9 +8356,15 @@ build_special_member_call (tree instance, tree name, vec<tree, va_gc> **args,
       /* FIXME P0135 doesn't say how to handle direct initialization from a
 	 type with a suitable conversion operator.  Let's handle it like
 	 copy-initialization, but allowing explict conversions.  */
+      tsubst_flags_t sub_complain = tf_warning;
+      if (!is_dummy_object (instance))
+	/* If we're using this to initialize a non-temporary object, don't
+	   require the destructor to be accessible.  */
+	sub_complain |= tf_no_cleanup;
       if (!reference_related_p (class_type, TREE_TYPE (arg)))
 	arg = perform_implicit_conversion_flags (class_type, arg,
-						 tf_warning, flags);
+						 sub_complain,
+						 flags);
       if ((TREE_CODE (arg) == TARGET_EXPR
 	   || TREE_CODE (arg) == CONSTRUCTOR)
 	  && (same_type_ignoring_top_level_qualifiers_p

gcc/testsuite/g++.dg/init/new48.C

@@ -0,0 +1,18 @@
+// PR c++/78139
+
+struct A
+{
+  A(int);
+private:
+  ~A();
+};
+
+struct B
+{
+  B(void*);
+};
+
+int main()
+{
+  B(new A(42));
+}