Add the clang library to the repo (with some of my changes, too).

1 files changed, 142 insertions, 0 deletions

diff --git a/clang/test/PCH/chain-cxx.cpp b/clang/test/PCH/chain-cxx.cpp
new file mode 100644
index 0000000..0d50e61
--- /dev/null
+++ b/clang/test/PCH/chain-cxx.cpp
@@ -0,0 +1,142 @@
+// Test C++ chained PCH functionality
+
+// Without PCH
+// RUN: %clang_cc1 -fsyntax-only -verify -include %s -include %s %s
+
+// With PCH
+// RUN: %clang_cc1 -fsyntax-only -verify %s -chain-include %s -chain-include %s
+
+#ifndef HEADER1
+#define HEADER1
+//===----------------------------------------------------------------------===//
+// Primary header for C++ chained PCH test
+
+void f();
+
+// Name not appearing in dependent
+void pf();
+
+namespace ns {
+  void g();
+
+  void pg();
+}
+
+template <typename T>
+struct S { typedef int G; };
+
+// Partially specialize
+template <typename T>
+struct S<T *> { typedef int H; };
+
+template <typename T> struct TS2;
+typedef TS2<int> TS2int;
+
+template <typename T> struct TestBaseSpecifiers { };
+template<typename T> struct TestBaseSpecifiers2 : TestBaseSpecifiers<T> { };
+
+template <typename T>
+struct TS3 {
+  static const int value = 0;
+  static const int value2;
+};
+template <typename T>
+const int TS3<T>::value;
+template <typename T>
+const int TS3<T>::value2 = 1;
+// Instantiate struct, but not value.
+struct instantiate : TS3<int> {};
+
+// Typedef
+typedef int Integer;
+
+//===----------------------------------------------------------------------===//
+#elif not defined(HEADER2)
+#define HEADER2
+#if !defined(HEADER1)
+#error Header inclusion order messed up
+#endif
+
+//===----------------------------------------------------------------------===//
+// Dependent header for C++ chained PCH test
+
+// Overload function from primary
+void f(int);
+
+// Add function with different name
+void f2();
+
+// Reopen namespace
+namespace ns {
+  // Overload function from primary
+  void g(int);
+
+  // Add different name
+  void g2();
+}
+
+// Specialize template from primary
+template <>
+struct S<int> { typedef int I; };
+
+// Partially specialize
+template <typename T>
+struct S<T &> { typedef int J; };
+
+// Specialize previous partial specialization
+template <>
+struct S<int *> { typedef int K; };
+
+// Specialize the partial specialization from this file
+template <>
+struct S<int &> { typedef int L; };
+
+template <typename T> struct TS2 { };
+
+struct TestBaseSpecifiers3 { };
+struct TestBaseSpecifiers4 : TestBaseSpecifiers3 { };
+
+struct A { };
+struct B : A { };
+
+// Instantiate TS3's members.
+static const int ts3m1 = TS3<int>::value;
+extern int arr[TS3<int>::value2];
+
+// Redefinition of typedef
+typedef int Integer;
+
+//===----------------------------------------------------------------------===//
+#else
+//===----------------------------------------------------------------------===//
+
+void test() {
+  f();
+  f(1);
+  pf();
+  f2();
+
+  ns::g();
+  ns::g(1);
+  ns::pg();
+  ns::g2();
+
+  typedef S<double>::G T1;
+  typedef S<double *>::H T2;
+  typedef S<int>::I T3;
+  typedef S<double &>::J T4;
+  typedef S<int *>::K T5;
+  typedef S<int &>::L T6;
+
+  TS2int ts2;
+
+  B b;
+  Integer i = 17;
+}
+
+// Should have remembered that there is a definition.
+static const int ts3m2 = TS3<int>::value;
+int arr[TS3<int>::value2];
+
+//===----------------------------------------------------------------------===//
+#endif