Tests and status for core issues 1-50.

llvm-svn: 182207

4 files changed, 588 insertions, 53 deletions

diff --git a/clang/test/CXX/class.derived/class.member.lookup/p7.cpp b/clang/test/CXX/class.derived/class.member.lookup/p7.cpp
new file mode 100644
index 00000000000..a785e0f90e5
--- /dev/null
+++ b/clang/test/CXX/class.derived/class.member.lookup/p7.cpp
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -verify %s
+
+// expected-no-diagnostics
+
+struct A { int n; };
+struct B { float n; };
+struct C : A, B {};
+struct D : virtual C {};
+struct E : virtual C { char n; };
+struct F : D, E {} f;
+char &k = f.n;
diff --git a/clang/test/CXX/drs/dr0xx.cpp b/clang/test/CXX/drs/dr0xx.cpp
new file mode 100644
index 00000000000..8c5022437e7
--- /dev/null
+++ b/clang/test/CXX/drs/dr0xx.cpp
@@ -0,0 +1,504 @@
+// RUN: %clang_cc1 -std=c++98 %s -verify -fexceptions -pedantic-errors -Wno-bind-to-temporary-copy
+// RUN: %clang_cc1 -std=c++11 %s -verify -fexceptions -pedantic-errors
+// RUN: %clang_cc1 -std=c++1y %s -verify -fexceptions -pedantic-errors
+
+namespace dr1 { // dr1: no
+  namespace X { extern "C" void dr1_f(int a = 1); } // expected-note 2{{candidate}} expected-note {{conflicting}}
+  namespace Y { extern "C" void dr1_f(int a = 2); } // expected-note 2{{candidate}} expected-note {{target}}
+  using X::dr1_f; using Y::dr1_f;
+  void g() {
+    // FIXME: The first of these two should be accepted.
+    dr1_f(0); // expected-error {{ambiguous}}
+    dr1_f(); // expected-error {{ambiguous}}
+  }
+  namespace X {
+    using Y::dr1_f; // expected-error {{conflicts with declaration already in scope}}
+    void h() {
+      // FIXME: The second of these two should be rejected.
+      dr1_f(0);
+      dr1_f();
+    }
+  }
+
+  namespace X {
+    void z(int);
+  }
+  void X::z(int = 1) {} // expected-note {{previous}}
+  namespace X {
+    void z(int = 2); // expected-error {{redefinition of default argument}}
+  }
+}
+
+namespace dr3 { // dr3: yes
+  template<typename T> struct A {};
+  template<typename T> void f(T) { A<T> a; } // expected-note {{implicit instantiation}}
+  template void f(int);
+  template<> struct A<int> {}; // expected-error {{explicit specialization of 'dr3::A<int>' after instantiation}}
+}
+
+namespace dr4 { // dr4: yes
+  extern "C" {
+    static void dr4_f(int) {}
+    static void dr4_f(float) {}
+    void dr4_g(int) {} // expected-note {{previous}}
+    void dr4_g(float) {} // expected-error {{conflicting types}}
+  }
+}
+
+namespace dr5 { // dr5: yes
+  struct A {} a;
+  struct B {
+    B(const A&);
+    B(const B&);
+  };
+  const volatile B b = a;
+
+  struct C { C(C&); };
+  struct D : C {};
+  struct E { operator D&(); } e;
+  const C c = e;
+}
+
+namespace dr7 { // dr7: no
+  class A { public: ~A(); };
+  class B : virtual private A {};
+  class C : public B {} c; // FIXME: should be rejected, ~A is inaccessible
+
+  class X { ~X(); }; // expected-note {{here}}
+  class Y : X { ~Y() {} }; // expected-error {{private destructor}}
+}
+
+namespace dr8 { // dr8: dup 45
+  class A {
+    struct U;
+    static const int k = 5;
+    void f();
+    template<typename, int, void (A::*)()> struct T;
+
+    T<U, k, &A::f> *g();
+  };
+  A::T<A::U, A::k, &A::f> *A::g() { return 0; }
+}
+
+namespace dr9 { // dr9: yes
+  struct B {
+  protected:
+    int m; // expected-note {{here}}
+    friend int R1();
+  };
+  struct N : protected B { // expected-note 2{{protected}}
+    friend int R2();
+  } n;
+  int R1() { return n.m; } // expected-error {{protected base class}} expected-error {{protected member}}
+  int R2() { return n.m; }
+}
+
+namespace dr10 { // dr10: dup 45
+  class A {
+    struct B {
+      A::B *p;
+    };
+  };
+}
+
+namespace dr11 { // dr11: yes
+  template<typename T> struct A : T {
+    using typename T::U;
+    U u;
+  };
+  template<typename T> struct B : T {
+    using T::V;
+    V v; // expected-error {{unknown type name}}
+  };
+  struct X { typedef int U; };
+  A<X> ax;
+}
+
+namespace dr12 { // dr12: sup 239
+  enum E { e };
+  E &f(E, E = e);
+  void g() {
+    int &f(int, E = e);
+    // Under DR12, these call two different functions.
+    // Under DR239, they call the same function.
+    int &b = f(e);
+    int &c = f(1);
+  }
+}
+
+namespace dr14 { // dr14: no
+  namespace X { extern "C" int dr14_f(); } // expected-note {{candidate}}
+  namespace Y { extern "C" int dr14_f(); } // expected-note {{candidate}}
+  using namespace X;
+  using namespace Y;
+  // FIXME: This should be accepted, name lookup only finds one function (in two
+  // different namespaces).
+  int k = dr14_f(); // expected-error {{ambiguous}}
+
+  class C {
+    int k; // expected-note {{here}}
+    friend int Y::dr14_f();
+  } c;
+  namespace Z {
+    // FIXME: This should be accepted, this function is a friend.
+    extern "C" int dr14_f() { return c.k; } // expected-error {{private}}
+  }
+
+  namespace X { typedef int T; typedef int U; } // expected-note {{candidate}}
+  namespace Y { typedef int T; typedef long U; } // expected-note {{candidate}}
+  T t; // ok, same type both times
+  U u; // expected-error {{ambiguous}}
+}
+
+namespace dr15 { // dr15: yes
+  template<typename T> void f(int); // expected-note {{previous}}
+  template<typename T> void f(int = 0); // expected-error {{default arguments cannot be added}}
+}
+
+namespace dr16 { // dr16: yes
+  class A { // expected-note {{here}}
+    void f(); // expected-note {{here}}
+    friend class C;
+  };
+  class B : A {}; // expected-note 4{{here}}
+  class C : B {
+    void g() {
+      f(); // expected-error {{private member}} expected-error {{private base}}
+      A::f(); // expected-error {{private member}} expected-error {{private base}}
+    }
+  };
+}
+
+namespace dr17 { // dr17: yes
+  class A {
+    int n;
+    int f();
+    struct C;
+  };
+  struct B : A {} b;
+  int A::f() { return b.n; }
+  struct A::C : A {
+    int g() { return n; }
+  };
+}
+
+namespace dr18 { // dr18: yes
+  typedef void Void;
+  void f(Void); // expected-error {{empty parameter list defined with a typedef of 'void'}}
+}
+
+namespace dr19 { // dr19: yes
+  struct A {
+    int n; // expected-note {{here}}
+  };
+  struct B : protected A { // expected-note {{here}}
+  };
+  struct C : B {} c;
+  struct D : B {
+    int get1() { return c.n; } // expected-error {{protected member}}
+    int get2() { return ((A&)c).n; } // ok, A is an accessible base of B from here
+  };
+}
+
+namespace dr20 { // dr20: yes
+  class X {
+  public:
+    X();
+  private:
+    X(const X&); // expected-note {{here}}
+  };
+  X f();
+  X x = f(); // expected-error {{private}}
+}
+
+namespace dr21 { // dr21: no
+  template<typename T> struct A;
+  struct X {
+    // FIXME: We should reject these, per [temp.param]p9.
+    template<typename T = int> friend struct A;
+    template<typename T = int> friend struct B;
+  };
+}
+
+namespace dr22 { // dr22: sup 481
+  template<typename dr22_T = dr22_T> struct X; // expected-error {{unknown type name 'dr22_T'}}
+  typedef int T;
+  template<typename T = T> struct Y;
+}
+
+namespace dr23 { // dr23: yes
+  template<typename T> void f(T, T); // expected-note {{candidate}}
+  template<typename T> void f(T, int); // expected-note {{candidate}}
+  void g() { f(0, 0); } // expected-error {{ambiguous}}
+}
+
+// dr24: na
+
+namespace dr25 { // dr25: no
+  struct A {
+    void f() throw(int);
+  };
+  // FIXME: The initializations of g and i should be rejected.
+  void (A::*f)() throw (int);
+  void (A::*g)() throw () = f;
+  void (A::*h)() throw (int, char) = f;
+  void (A::*i)() throw () = &A::f;
+  void (A::*j)() throw (int, char) = &A::f;
+  void x() {
+    // FIXME: The assignments to g and i should be rejected.
+    g = f;
+    h = f;
+    i = &A::f;
+    j = &A::f;
+  }
+}
+
+namespace dr26 { // dr26: yes
+  struct A { A(A, const A & = A()); }; // expected-error {{must pass its first argument by reference}}
+  struct B {
+    B(); // expected-note {{candidate}}
+    B(const B &, B = B()); // expected-error {{no matching constructor}} expected-note {{candidate}} expected-note {{here}}
+  };
+}
+
+namespace dr27 { // dr27: yes
+  enum E { e } n;
+  E &m = true ? n : n;
+}
+
+// dr28: na
+
+namespace dr29 { // dr29: no
+  void dr29_f0(); // expected-note {{here}}
+  void g0() { void dr29_f0(); }
+  extern "C++" void g0_cxx() { void dr29_f0(); }
+  extern "C" void g0_c() { void dr29_f0(); } // expected-error {{different language linkage}}
+
+  extern "C" void dr29_f1(); // expected-note {{here}}
+  void g1() { void dr29_f1(); }
+  extern "C" void g1_c() { void dr29_f1(); }
+  extern "C++" void g1_cxx() { void dr29_f1(); } // expected-error {{different language linkage}}
+
+  // FIXME: We should reject this.
+  void g2() { void dr29_f2(); }
+  extern "C" void dr29_f2();
+
+  // FIXME: We should reject this.
+  extern "C" void g3() { void dr29_f3(); }
+  extern "C++" void dr29_f3();
+
+  // FIXME: We should reject this.
+  extern "C++" void g4() { void dr29_f4(); }
+  extern "C" void dr29_f4();
+
+  extern "C" void g5();
+  extern "C++" void dr29_f5();
+  void g5() {
+    void dr29_f5(); // ok, g5 is extern "C" but we're not inside the linkage-specification here.
+  }
+
+  extern "C++" void g6();
+  extern "C" void dr29_f6();
+  void g6() {
+    void dr29_f6(); // ok, g6 is extern "C" but we're not inside the linkage-specification here.
+  }
+
+  extern "C" void g7();
+  extern "C++" void dr29_f7(); // expected-note {{here}}
+  extern "C" void g7() {
+    void dr29_f7(); // expected-error {{different language linkage}}
+  }
+
+  extern "C++" void g8();
+  extern "C" void dr29_f8(); // expected-note {{here}}
+  extern "C++" void g8() {
+    void dr29_f8(); // expected-error {{different language linkage}}
+  }
+}
+
+namespace dr30 { // dr30: sup 468
+  struct A {
+    template<int> static int f();
+  } a, *p = &a;
+  int x = A::template f<0>();
+  int y = a.template f<0>();
+  int z = p->template f<0>();
+#if __cplusplus < 201103L
+  // FIXME: It's not clear whether DR468 applies to C++98 too.
+  // expected-error@-5 {{'template' keyword outside of a template}}
+  // expected-error@-5 {{'template' keyword outside of a template}}
+  // expected-error@-5 {{'template' keyword outside of a template}}
+#endif
+}
+
+namespace dr31 { // dr31: yes
+  class X {
+  private:
+    void operator delete(void*); // expected-note {{here}}
+  };
+  // We would call X::operator delete if X() threw (even though it can't,
+  // and even though we allocated the X using ::operator delete).
+  X *p = new X; // expected-error {{private}}
+}
+
+// dr32: na
+
+namespace dr33 { // dr33: yes
+  namespace X { struct S; void f(void (*)(S)); } // expected-note {{candidate}}
+  namespace Y { struct T; void f(void (*)(T)); } // expected-note {{candidate}}
+  void g(X::S);
+  template<typename Z> Z g(Y::T);
+  void h() { f(&g); } // expected-error {{ambiguous}}
+}
+
+// dr34: na
+// dr35: dup 178
+// dr37: sup 475
+
+namespace dr38 { // dr38: yes
+  template<typename T> struct X {};
+  template<typename T> X<T> operator+(X<T> a, X<T> b) { return a; }
+  template X<int> operator+<int>(X<int>, X<int>);
+}
+
+namespace dr39 { // dr39: no
+  namespace example1 {
+    struct A { int &f(int); };
+    struct B : A {
+      using A::f;
+      float &f(float);
+    } b;
+    int &r = b.f(0);
+  }
+
+  namespace example2 {
+    struct A {
+      int &x(int); // expected-note {{found}}
+      static int &y(int); // expected-note {{found}}
+    };
+    struct V {
+      int &z(int);
+    };
+    struct B : A, virtual V {
+      using A::x; // expected-note {{found}}
+      float &x(float);
+      using A::y; // expected-note {{found}}
+      static float &y(float);
+      using V::z;
+      float &z(float);
+    };
+    struct C : A, B, virtual V {} c;
+    int &x = c.x(0); // expected-error {{found in multiple base classes}}
+    // FIXME: This is valid, because we find the same static data member either way.
+    int &y = c.y(0); // expected-error {{found in multiple base classes}}
+    int &z = c.z(0);
+  }
+
+  namespace example3 {
+    struct A { static int f(); };
+    struct B : virtual A { using A::f; };
+    struct C : virtual A { using A::f; };
+    struct D : B, C {} d;
+    int k = d.f();
+  }
+
+  namespace example4 {
+    struct A { int n; }; // expected-note {{found}}
+    struct B : A {};
+    struct C : A {};
+    struct D : B, C { int f() { return n; } }; // expected-error {{found in multiple base-class}}
+  }
+}
+
+// dr40: na
+
+namespace dr41 { // dr41: yes
+  struct S f(S);
+}
+
+namespace dr42 { // dr42: yes
+  struct A { static const int k = 0; };
+  struct B : A { static const int k = A::k; };
+}
+
+// dr43: na
+
+namespace dr44 { // dr44: yes
+  struct A {
+    template<int> void f();
+    template<> void f<0>(); // expected-error {{explicit specialization of 'f' in class scope}}
+  };
+}
+
+namespace dr45 { // dr45: yes
+  class A {
+    class B {};
+    class C : B {};
+    C c;
+  };
+}
+
+namespace dr46 { // dr46: yes
+  template<typename> struct A { template<typename> struct B {}; };
+  template template struct A<int>::B<int>; // expected-error {{expected unqualified-id}}
+}
+
+namespace dr47 { // dr47: no
+  template<typename T> struct A {
+    friend void f() { T t; }
+  };
+  A<int> a;
+  A<float> b;
+#if __cplusplus < 201103L
+  // expected-error@-5 {{redefinition}} expected-note@-5 {{previous}}
+  // expected-note@-3 {{instantiation of}}
+#else
+  void f();
+  // FIXME: We should produce some kind of error here. C++11 [temp.friend]p4
+  // says we instantiate 'f' when it's odr-used, but that doesn't imply that
+  // this is valid; we still have multiple definitions of 'f' even if we never
+  // instantiate any of them.
+  void g() { f(); }
+#endif
+}
+
+namespace dr48 { // dr48: yes
+  namespace {
+    struct S {
+      static const int m = 0;
+      static const int n = 0;
+      static const int o = 0;
+    };
+  }
+  int a = S::m;
+  // FIXME: We should produce a 'has internal linkage but is not defined'
+  // diagnostic for 'S::n'.
+  const int &b = S::n;
+  const int S::o;
+  const int &c = S::o;
+}
+
+namespace dr49 { // dr49: yes
+  template<int*> struct A {}; // expected-note {{here}}
+  int k;
+#if __has_feature(cxx_constexpr)
+  constexpr
+#endif
+  int *const p = &k;
+  A<&k> a;
+  A<p> b; // expected-error {{must have its address taken}}
+#if __cplusplus < 201103L
+  // expected-error@-2 {{internal linkage}}
+  // expected-note@-5 {{here}}
+#endif
+}
+
+namespace dr50 { // dr50: yes
+  struct X; // expected-note {{forward}}
+  extern X *p;
+  X *q = (X*)p;
+  X *r = static_cast<X*>(p);
+  X *s = const_cast<X*>(p);
+  X *t = reinterpret_cast<X*>(p);
+  X *u = dynamic_cast<X*>(p); // expected-error {{incomplete}}
+}
diff --git a/clang/www/cxx_dr_status.html b/clang/www/cxx_dr_status.html
index 2ca30c5709a..6ee98e8a5f2 100644
--- a/clang/www/cxx_dr_status.html
+++ b/clang/www/cxx_dr_status.html
@@ -44,7 +44,7 @@
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1">1</a></td>
     <td>TC1</td>
     <td>What if two using-declarations refer to the same function but the declarations introduce different default-arguments?</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">No</td>
   </tr>
   <tr class="open">
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#2">2</a></td>
@@ -56,19 +56,19 @@
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#3">3</a></td>
     <td>NAD</td>
     <td>The template compilation model rules render some explicit specialization declarations not visible during instantiation</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#4">4</a></td>
     <td>CD1</td>
     <td>Does extern "C" affect the linkage of function names with internal linkage?</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#5">5</a></td>
     <td>CD1</td>
     <td>CV-qualifiers and type conversions</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr class="open">
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#6">6</a></td>
@@ -80,37 +80,37 @@
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#7">7</a></td>
     <td>NAD</td>
     <td>Can a class with a private virtual base class be derived from?</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">No</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#8">8</a></td>
     <td>CD1</td>
     <td>Access to template arguments used in a function return type and in the nested name specifier</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Duplicate of 45</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#9">9</a></td>
     <td>CD1</td>
     <td>Clarification of access to base class members</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#10">10</a></td>
     <td>CD1</td>
     <td>Can a nested class access its own class name as a qualified name if it is a private member of the enclosing class?</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Duplicate of 45</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#11">11</a></td>
     <td>CD1</td>
     <td>How do the keywords typename/template interact with using-declarations?</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#12">12</a></td>
     <td>dup</td>
     <td>Default arguments on different declarations for the same function and the Koenig lookup</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">Superseded by 239</td>
   </tr>
   <tr class="open">
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#13">13</a></td>
@@ -122,133 +122,133 @@
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#14">14</a></td>
     <td>NAD</td>
     <td>extern "C" functions and declarations in different namespaces</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">No</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#15">15</a></td>
     <td>dup</td>
     <td>Default arguments for parameters of function templates</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#16">16</a></td>
     <td>CD1</td>
     <td>Access to members of indirect private base classes</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#17">17</a></td>
     <td>NAD</td>
     <td>Footnote 99 should discuss the naming class when describing members that can be accessed from friends</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#18">18</a></td>
     <td>NAD</td>
     <td>f(TYPE) where TYPE is void should be allowed</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#19">19</a></td>
     <td>NAD</td>
     <td>Clarify protected member access</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#20">20</a></td>
     <td>TC1</td>
     <td>Some clarifications needed for 12.8 para 15</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#21">21</a></td>
     <td>TC1</td>
     <td>Can a default argument for a template parameter appear in a friend declaration?</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">No</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#22">22</a></td>
     <td>TC1</td>
     <td>Template parameter with a default argument that refers to itself</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">Superseded by 481</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#23">23</a></td>
     <td>NAD</td>
     <td>Some questions regarding partial ordering of function templates</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#24">24</a></td>
     <td>TC1</td>
     <td>Errors in examples in 14.7.3</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="na" align="center">N/A</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#25">25</a></td>
     <td>TC1</td>
     <td>Exception specifications and pointers to members</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">No</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#26">26</a></td>
     <td>NAD</td>
     <td>Copy constructors and default arguments</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#27">27</a></td>
     <td>NAD</td>
     <td>Overload ambiguities for builtin ?: prototypes</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#28">28</a></td>
     <td>CD1</td>
     <td>'exit', 'signal' and static object destruction</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="na" align="center">N/A</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#29">29</a></td>
     <td>CD1</td>
     <td>Linkage of locally declared functions</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">No</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#30">30</a></td>
     <td>TC1</td>
     <td>Valid uses of "<TT>::template</TT>"</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">Superseded by 468</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#31">31</a></td>
     <td>NAD</td>
     <td>Looking up new/delete</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#32">32</a></td>
     <td>TC1</td>
     <td>Clarification of explicit instantiation of non-exported templates</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="na" align="center">N/A</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#33">33</a></td>
     <td>TC1</td>
     <td>Argument dependent lookup and overloaded functions</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#34">34</a></td>
     <td>NAD</td>
     <td>Argument dependent lookup and points of instantiation</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="na" align="center">N/A</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#35">35</a></td>
     <td>TC1</td>
     <td>Definition of default-initialization</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">Duplicate of 178</td>
   </tr>
   <tr class="open">
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#36">36</a></td>
@@ -260,85 +260,85 @@
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#37">37</a></td>
     <td>NAD</td>
     <td>When is uncaught_exception() true?</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">Superseded by 475</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#38">38</a></td>
     <td>TC1</td>
     <td>Explicit template arguments and operator functions</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#39">39</a></td>
     <td>CD1</td>
     <td>Conflicting ambiguity rules</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">No</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#40">40</a></td>
     <td>TC1</td>
     <td>Syntax of <I>declarator-id</I></td>
-    <td class="none" align="center">Unknown</td>
+    <td class="na" align="center">N/A</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#41">41</a></td>
     <td>TC1</td>
     <td>Clarification of lookup of names after declarator-id</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#42">42</a></td>
     <td>NAD</td>
     <td>Redefining names from base classes</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#43">43</a></td>
     <td>TC1</td>
     <td>Copying base classes (PODs) using memcpy</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="na" align="center">N/A</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#44">44</a></td>
     <td>CD1</td>
     <td>Member specializations</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#45">45</a></td>
     <td>CD1</td>
     <td>Access to nested classes</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#46">46</a></td>
     <td>NAD</td>
     <td>Explicit instantiation of member templates</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#47">47</a></td>
     <td>NAD</td>
     <td>Template friend issues</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="none" align="center">No</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#48">48</a></td>
     <td>TC1</td>
     <td>Definitions of unused static members</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#49">49</a></td>
     <td>TC1</td>
     <td>Restriction on non-type, non-value template arguments</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#50">50</a></td>
     <td>NAD</td>
     <td>Converting pointer to incomplete type to same type</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Yes</td>
   </tr>
   <tr>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#51">51</a></td>
diff --git a/clang/www/make_cxx_dr_status b/clang/www/make_cxx_dr_status
index e53d7b914a2..56c998bd424 100755
--- a/clang/www/make_cxx_dr_status
+++ b/clang/www/make_cxx_dr_status
@@ -1,7 +1,10 @@
 #! /usr/bin/env python
-import sys
+import sys, os, re
 
 index = 'cwg_index.html'
+output = 'cxx_dr_status.html'
+dr_test_dir = '../test/CXX/drs'
+
 if len(sys.argv) == 1:
   pass
 elif len(sys.argv) == 2:
@@ -28,12 +31,23 @@ def parse(dr):
   title = title.replace('<issue_title>', '').replace('</issue_title>', '').strip()
   return DR(section, issue, url, status, title)
 
-status_list = [line.split(' ', 1) for line in file('cxx_dr_status', 'r').readlines()]
-status_map = dict((int(issue), status.strip()) for issue, status in status_list)
+status_re = re.compile(r'\bdr([0-9]+): (.*)')
+status_map = {}
+for test_cpp in os.listdir(dr_test_dir):
+  test_cpp = os.path.join(dr_test_dir, test_cpp)
+  found_any = False;
+  for match in re.finditer(status_re, file(test_cpp, 'r').read()):
+    status_map[int(match.group(1))] = match.group(2)
+    found_any = True
+  if not found_any:
+    print >> sys.stderr, "warning:%s: no '// dr123: foo' comments in this file" % test_cpp
+
 drs = sorted((parse(dr) for dr in file(index, 'r').read().split('<TR>')[2:]),
              key = lambda dr: dr.issue)
+out_file = file(output, 'w')
 
-print '''<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
+print >> out_file, '''\
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
           "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 <head>
@@ -99,9 +113,13 @@ def availability(issue):
   elif status == 'na':
     avail = 'N/A'
     avail_style = ' class="na"'
+  elif status.startswith('sup '):
+    dup = int(status.split(' ', 1)[1])
+    avail = 'Superseded by %s' % dup
+    _, avail_style = availability(dup)
   elif status.startswith('dup '):
     dup = int(status.split(' ', 1)[1])
-    avail = 'Dup %s' % dup
+    avail = 'Duplicate of %s' % dup
     _, avail_style = availability(dup)
   else:
     assert False, 'unknown status %s for issue %s' % (status, dr.issue)
@@ -121,7 +139,8 @@ for dr in drs:
     row_style = ''
     avail, avail_style = availability(dr.issue)
 
-  print '''  <tr%s>
+  print >> out_file, '''\
+  <tr%s>
     <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/%s">%s</a></td>
     <td>%s</td>
     <td>%s</td>
@@ -129,7 +148,8 @@ for dr in drs:
   </tr>''' % (row_style, dr.url, dr.issue, dr.status, dr.title, avail_style,
               avail)
 
-print '''</table>
+print >> out_file, '''\
+</table>
 
 </div>
 </body>