diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7b7f692228b..383366743a7 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2004-01-29  Giovanni Bajo  <giovannibajo@gcc.gnu.org>
+
+	* g++.dg/tc1: New directory.
+	* g++.dg/tc1/dr108.C, g++.dg/tc1/dr128.C, g++.dg/tc1/dr147.C,
+	g++.dg/tc1/dr179.C, g++.dg/tc1/dr1.C, g++.dg/tc1/dr213.C,
+	g++.dg/tc1/dr74.C, g++.dg/tc1/dr90.C, g++.dg/tc1/dr127.C,
+	g++.dg/tc1/dr137.C, g++.dg/tc1/dr164.C, g++.dg/tc1/dr185.C,
+	g++.dg/tc1/dr20.C, g++.dg/tc1/dr52.C, g++.dg/tc1/dr85.C: New tests.
+
 2004-01-28  Giovanni Bajo  <giovannibajo@gcc.gnu.org>
 
 	* g++.dg/parse/error11.C: New test.
diff --git a/gcc/testsuite/g++.dg/tc1/dr1.C b/gcc/testsuite/g++.dg/tc1/dr1.C
new file mode 100644
index 00000000000..9196218f119
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr1.C
@@ -0,0 +1,18 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR1: What if two using-declarations refer to the same function but the 
+//  declarations introduce different default-arguments? 
+
+namespace A { 
+  extern "C" void f(int = 5); 
+} 
+namespace B { 
+  extern "C" void f(int = 5); 
+} 
+using A::f; 
+using B::f; 
+
+void use() { 
+  f(3);       
+  f();        // { dg-error "" "" { xfail *-*-* } }
+} 
diff --git a/gcc/testsuite/g++.dg/tc1/dr108.C b/gcc/testsuite/g++.dg/tc1/dr108.C
new file mode 100644
index 00000000000..f7848ec74b6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr108.C
@@ -0,0 +1,15 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR108: Are classes nested in templates dependent?
+
+template <class T> struct S {
+  struct I1 {
+    typedef int X;
+  };
+  struct I2 : public I1 {
+    X x;    // { dg-error "does not name a type" }
+  };
+};
+
+// Additional notes on the same line are allowed
+// { dg-error "" "" { target *-*-* } 10 }
diff --git a/gcc/testsuite/g++.dg/tc1/dr127.C b/gcc/testsuite/g++.dg/tc1/dr127.C
new file mode 100644
index 00000000000..4dddc6d7778
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr127.C
@@ -0,0 +1,28 @@
+// { dg-do link }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR127: Ambiguity in description of matching deallocation function
+
+#include <cstddef>
+#include <new>
+
+struct A 
+{
+  // placement new, but can be called through normal new syntax.
+  void* operator new(std::size_t size, float = 0.0f)
+  {
+    return ::operator new(size);
+  }
+
+  // The matching deallocation function must be called, which means
+  //  the placemente delete.
+  void operator delete(void*);
+  void operator delete(void*, float) {}
+
+  A()
+  { throw 5; }
+};
+
+int main()
+{
+  (void)new A;
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr128.C b/gcc/testsuite/g++.dg/tc1/dr128.C
new file mode 100644
index 00000000000..4dd78d57f5c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr128.C
@@ -0,0 +1,17 @@
+// { dg-do run }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR128: Casting between enum types
+
+extern "C" void abort(void);
+
+enum E1 { BLACK = 0, RED = 1 };
+enum E2 { WHITE = 0, YELLOW = 1};
+
+int main(void)
+{
+  E1 e1 = RED;
+  E2 e2 = static_cast<E2>(e1);
+  if (e2 != YELLOW)
+    abort();
+  return 0;
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr137.C b/gcc/testsuite/g++.dg/tc1/dr137.C
new file mode 100644
index 00000000000..bc1beb021bb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr137.C
@@ -0,0 +1,13 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR137: static_cast of cv void*
+
+struct A;
+
+const void* v;
+
+void foo(void)
+{
+  (void)static_cast<const volatile A *>(v);
+  (void)static_cast<A *>(v);  // { dg-error "" "static_cast cannot remove cv qualifiers" }
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr147.C b/gcc/testsuite/g++.dg/tc1/dr147.C
new file mode 100644
index 00000000000..268f9f95e58
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr147.C
@@ -0,0 +1,31 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR147: Naming the constructor
+
+namespace N1 {
+
+struct A { A(); };
+struct B: public A { B(); };
+
+A::A() { }
+B::B() { }
+
+B::A ba;
+A::A a; // { dg-error "" "the injected-class-name can never be found through qualified lookup" { xfail *-*-* } }
+
+}
+
+namespace N2 {
+
+// This is nasty: if we allowed the injected-class-name to be looked as a 
+//  qualified type, then the following code would be well-formed. Basically
+//  the last line is defining the static member (with redundant parenthesis).
+// Instead, it should be rejected as a malformed constructor declaration.
+
+template <class T> struct A {
+  template <class T2> A(T2);
+  static A x;
+};
+template<> A<int>::A<int>(A<int>::x);  // { dg-error "" "this is an invalid declaration of the constructor" { xfail *-*-* } }
+
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr164.C b/gcc/testsuite/g++.dg/tc1/dr164.C
new file mode 100644
index 00000000000..026ec096fb3
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr164.C
@@ -0,0 +1,17 @@
+// { dg-do link }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR164: Overlap between Koenig and normal lookup 
+
+void f(int);
+
+template <class T> void g(T t) {
+  f(t);
+}
+
+enum E { e };
+
+void f(E) {}
+
+int main() {
+  g(e);
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr179.C b/gcc/testsuite/g++.dg/tc1/dr179.C
new file mode 100644
index 00000000000..39e4164d2a9
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr179.C
@@ -0,0 +1,13 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR179: Function pointers and subtraction
+
+void foo(void);
+typedef void (*fp)(void);
+
+int main()
+{
+  fp f1 = foo;
+  fp f2 = foo;
+  (void)f2-f1;  // { dg-error "" "cannot subtract pointers to function" }
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr185.C b/gcc/testsuite/g++.dg/tc1/dr185.C
new file mode 100644
index 00000000000..2cd4e397f93
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr185.C
@@ -0,0 +1,26 @@
+// { dg-do run }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR185: "Named" temporaries and copy elision 
+
+extern "C" void abort(void);
+
+struct A {
+  mutable int value;
+  explicit A(int i) : value(i) {}
+  void mutate(int i) const { value = i; }
+};
+
+int foo() {
+  A const& t = A(1);
+  A n(t);          // can this copy be elided? NO!
+  t.mutate(2);
+  return n.value;  // can this return 2? NO!
+}
+
+int main()
+{
+  int x = foo();
+  if (x != 1)
+    abort();
+  return 0;
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr20.C b/gcc/testsuite/g++.dg/tc1/dr20.C
new file mode 100644
index 00000000000..fe586212995
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr20.C
@@ -0,0 +1,34 @@
+// { dg-do run }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR20: Some clarifications needed for 12.8 para 15 
+
+extern "C" void printf(const char*, ...);
+extern "C" void abort(void);
+
+int count = 0;
+
+class Thing {
+public:
+  Thing() {
+  }
+  ~Thing() {
+  }
+  Thing(const Thing&)
+  {
+    count += 1;
+  }
+};
+
+Thing f() {
+  Thing t;
+  return t;
+}
+
+int main(void)
+{
+  Thing t2 = f();
+  printf("%d %x\n", count, &t2);
+  if (count != 0)
+    abort();
+  return 0;
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr213.C b/gcc/testsuite/g++.dg/tc1/dr213.C
new file mode 100644
index 00000000000..a8961655b7a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr213.C
@@ -0,0 +1,27 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR213: Lookup in dependent base classes
+
+// We should emit an error at *instantiation* time because g(t) can't be
+//  resolved to any function.
+
+template <class T> struct A : T {
+  void h(T t) {
+    f(t);
+    g(t);     // { dg-error "" "" { xfail *-*-* } }
+  }
+};
+
+struct B {
+  void f(B);
+  void g(B) {};
+};
+
+void f(B) {}
+
+int main()
+{
+  A<B> ab;   // { dg-error "" "" { xfail *-*-* } }
+  B b;
+  ab.h(b);
+}
diff --git a/gcc/testsuite/g++.dg/tc1/dr52.C b/gcc/testsuite/g++.dg/tc1/dr52.C
new file mode 100644
index 00000000000..b0896d73fa7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr52.C
@@ -0,0 +1,34 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR52: Non-static members, member selection and access checking
+
+struct A 
+{
+  void foo(void);
+};
+
+struct B
+{
+private:
+  void foo(void);
+};
+
+struct B1 : B {};
+struct B2 : B {};
+
+struct C
+{
+  void foo(void);
+};
+
+struct D : private C {};
+
+struct X: A, B1, B2, D
+{
+public:
+  void bar(void)
+  {
+    this->B::foo();  // { dg-error "" }
+    this->C::foo();  // { dg-error "" }
+  }
+};
diff --git a/gcc/testsuite/g++.dg/tc1/dr74.C b/gcc/testsuite/g++.dg/tc1/dr74.C
new file mode 100644
index 00000000000..155c7981b52
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr74.C
@@ -0,0 +1,9 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR74: Enumeration value in direct-new-declarator 
+
+struct A {};
+enum E1 { COUNT = 10 };
+
+A* a = new A[COUNT];
+
diff --git a/gcc/testsuite/g++.dg/tc1/dr85.C b/gcc/testsuite/g++.dg/tc1/dr85.C
new file mode 100644
index 00000000000..31dde8cbb5d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr85.C
@@ -0,0 +1,8 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR85: Redeclaration of member class
+
+struct Base {
+  struct Data {};  
+  struct Data;  // { dg-error "" "redeclaration of nested class is invalid" { xfail *-*-* } }
+};
diff --git a/gcc/testsuite/g++.dg/tc1/dr90.C b/gcc/testsuite/g++.dg/tc1/dr90.C
new file mode 100644
index 00000000000..b6ec24cc849
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr90.C
@@ -0,0 +1,20 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR90: Should the enclosing class be an "associated class" too? 
+
+struct A {
+  union U {};
+  friend void f(U);
+};
+
+struct B {
+  struct S {};
+  friend void f(S);
+};
+
+int main() { 
+  A::U    u; 
+  f(u);
+  B::S    s;
+  f(s);
+}