Add test case.

llvm-svn: 81868
diff --git a/clang/test/CodeGenCXX/conditional-expr-lvalue.cpp b/clang/test/CodeGenCXX/conditional-expr-lvalue.cpp
new file mode 100644
index 0000000..7b3233a
--- /dev/null
+++ b/clang/test/CodeGenCXX/conditional-expr-lvalue.cpp
@@ -0,0 +1,7 @@
+// RUN: clang-cc -emit-llvm-only %s
+void f(bool flag) {
+  int a = 1;
+  int b = 2;
+  
+  (flag ? a : b) = 3;
+}