Fix crash in RegionStoreManager::evalDerivedToBase() due to not handling references

(in uses of dynamic_cast<>).

Fixes <rdar://problem/11817693>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160427 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 15 insertions, 0 deletions

diff --git a/test/Analysis/misc-ps-cxx0x.cpp b/test/Analysis/misc-ps-cxx0x.cpp
index b4dee3122e..7712bb8dc3 100644
--- a/test/Analysis/misc-ps-cxx0x.cpp
+++ b/test/Analysis/misc-ps-cxx0x.cpp
@@ -73,3 +73,18 @@ void test2() {
 struct RDar11178609 {
   ~RDar11178609() = delete;
 };
+
+// Tests that dynamic_cast handles references to C++ classes.  Previously
+// this crashed.
+class rdar11817693_BaseBase {};
+class rdar11817693_BaseInterface {};
+class rdar11817693_Base : public rdar11817693_BaseBase, public rdar11817693_BaseInterface {};
+class rdar11817693 : public rdar11817693_Base {
+  virtual void operator=(const rdar11817693_BaseBase& src);
+  void operator=(const rdar11817693& src);
+};
+void rdar11817693::operator=(const rdar11817693& src) {
+  operator=(dynamic_cast<const rdar11817693_BaseBase&>(src));
+}
+
+