PR middle-end/89303 add testcase for std::enable_shared_from_this

	* testsuite/20_util/enable_shared_from_this/89303.cc: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-8-branch@268874 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 44 insertions, 0 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 78286676311d..d290dcf7e453 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2019-02-14  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR middle-end/89303
+	* testsuite/20_util/enable_shared_from_this/89303.cc: New test.
+
 2019-02-09  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backport from mainline
diff --git a/libstdc++-v3/testsuite/20_util/enable_shared_from_this/89303.cc b/libstdc++-v3/testsuite/20_util/enable_shared_from_this/89303.cc
new file mode 100644
index 000000000000..3b23332c35eb
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/enable_shared_from_this/89303.cc
@@ -0,0 +1,39 @@
+// Copyright (C) 2019 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-O1" }
+// { dg-do run { target c++11 } }
+
+// PR middle-end/89303
+
+#include <memory>
+
+class blob final: public std::enable_shared_from_this<blob>
+{
+  int* data;
+
+public:
+  blob() { data = new int; }
+  ~blob() { delete data; }
+};
+
+int
+main()
+{
+  std::shared_ptr<blob> tg = std::make_shared<blob>();
+  return tg->shared_from_this().use_count() - 2;
+}