Migrate test from llvm/test/FrontendC++.

llvm-svn: 137773

clang/test/CodeGenCXX/2010-05-10-Var-DbgInfo.cpp

@@ -0,0 +1,42 @@
+// RUN: %clang_cc1 -emit-llvm -O0 -g %s -o /dev/null
+// PR 7104
+
+struct A {
+  int Ai;
+};
+
+struct B : public A {};
+struct C : public B {};
+
+const char * f(int C::*){ return ""; }
+int f(int B::*) { return 1; }
+
+struct D : public C {};
+
+const char * g(int B::*){ return ""; }
+int g(int D::*) { return 1; }
+
+void test()
+{
+  int i = f(&A::Ai);
+
+  const char * str = g(&A::Ai);
+}
+
+// conversion of B::* to C::* is better than conversion of A::* to C::*
+typedef void (A::*pmfa)();
+typedef void (B::*pmfb)();
+typedef void (C::*pmfc)();
+
+struct X {
+  operator pmfa();
+  operator pmfb();
+};
+
+
+void g(pmfc);
+
+void test2(X x)
+{
+  g(x);
+}