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

1 files changed, 117 insertions, 0 deletions

diff --git a/clang/test/SemaTemplate/instantiate-declref.cpp b/clang/test/SemaTemplate/instantiate-declref.cpp
new file mode 100644
index 0000000..7d4a2ff
--- /dev/null
+++ b/clang/test/SemaTemplate/instantiate-declref.cpp
@@ -0,0 +1,117 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+namespace N {
+  struct Outer {
+    struct Inner {
+      template<typename T>
+      struct InnerTemplate {
+        struct VeryInner {
+          typedef T type;
+
+          static enum K1 { K1Val = sizeof(T) } Kind1;
+          static enum { K2Val = sizeof(T)*2 } Kind2;
+          enum { K3Val = sizeof(T)*2 } Kind3;
+
+          void foo() {
+            K1 k1 = K1Val;
+            Kind1 = K1Val;
+            Outer::Inner::InnerTemplate<type>::VeryInner::Kind2 = K2Val;
+            Kind3 = K3Val;
+          }
+
+          struct UeberInner {
+            void bar() {
+              K1 k1 = K1Val;
+              Kind1 = K1Val;
+              Outer::Inner::InnerTemplate<type>::VeryInner::Kind2 = K2Val;
+
+              InnerTemplate t;
+              InnerTemplate<type> t2;
+            }
+          };
+        };
+      };
+    };
+  };
+}
+
+typedef int INT;
+template struct N::Outer::Inner::InnerTemplate<INT>::VeryInner;
+template struct N::Outer::Inner::InnerTemplate<INT>::UeberInner; // expected-error{{no struct named 'UeberInner' in 'N::Outer::Inner::InnerTemplate<int>'}}
+
+namespace N2 {
+  struct Outer2 {
+    template<typename T, typename U = T>
+    struct Inner {
+      void foo() {
+        enum { K1Val = sizeof(T) } k1;
+        enum K2 { K2Val = sizeof(T)*2 } k2a;
+
+        K2 k2b = K2Val;
+
+        struct S { T x, y; } s1;
+        struct { U x, y; } s2;
+        s1.x = s2.x; // expected-error{{incompatible}}
+
+        typedef T type;
+        type t2 = s1.x;
+
+        typedef struct { T z; } type2;
+        type2 t3 = { s1.x };
+
+        Inner i1;
+        i1.foo();
+        Inner<T> i2;
+        i2.foo();
+      }
+    };
+  };
+}
+
+template struct N2::Outer2::Inner<float>;
+template struct N2::Outer2::Inner<int*, float*>; // expected-note{{instantiation}}
+
+// Test dependent pointer-to-member expressions.
+template<typename T>
+struct smart_ptr {
+  struct safe_bool {
+    int member;
+  };
+  
+  operator int safe_bool::*() const { 
+    return ptr? &safe_bool::member : 0;
+  }
+  
+  T* ptr;
+};
+
+void test_smart_ptr(smart_ptr<int> p) {
+  if (p) { }
+}
+
+// PR5517
+namespace test0 {
+  template <int K> struct X {
+    X() { extern void x(); }
+  };
+  void g() { X<2>(); }
+}
+
+// <rdar://problem/8302161>
+namespace test1 {
+  template <typename T> void f(T const &t) {
+    union { char c; T t_; };
+    c = 'a'; // <- this shouldn't silently fail to instantiate
+    T::foo(); // expected-error {{has no members}}
+  }
+  template void f(int const &); // expected-note {{requested here}}
+}
+
+namespace test2 {
+  template<typename T> void f() {
+    T::error; // expected-error {{no member}}
+  }
+  void g() {
+    // This counts as an odr-use, so should trigger the instantiation of f<int>.
+    (void)&f<int>; // expected-note {{here}}
+  }
+}