Revert "Fix PR c++/47172"

gcc/cp/

	* pt.c (finish_call_expr, dependent_type_p)
	(type_dependent_expression_p): Revert the previous attempt to fix
	PR c++/47172.

gcc/testsuite/

    	* g++.dg/template/inherit6.C: Reverted.

From-SVN: r170055

gcc/cp/ChangeLog

-2011-02-11  Dodji Seketeli  <dodji@redhat.com>
-
-	PR c++/47172
-	* pt.c (finish_call_expr): Consider a call expression that has a
-	dependent "this" pointer as being dependent.  Add comments.
-	(dependent_type_p, type_dependent_expression_p): Update comments.
-
 2011-02-09  Jason Merrill  <jason@redhat.com>
 
 	* decl.c (cp_make_fname_decl): Set DECL_THIS_STATIC at toplevel.

gcc/cp/pt.c

@@ -17912,7 +17912,7 @@ dependent_type_p_r (tree type)
 }
 
 /* Returns TRUE if TYPE is dependent, in the sense of
-   [temp.dep.type].  Note that a NULL type is considered dependent.  */
+   [temp.dep.type].  */
 
 bool
 dependent_type_p (tree type)
@@ -18184,10 +18184,7 @@ value_dependent_expression_p (tree expression)
 }
 
 /* Returns TRUE if the EXPRESSION is type-dependent, in the sense of
-   [temp.dep.expr].  Note that an expression with no type is
-   considered dependent.  Other parts of the compiler arrange for an
-   expression with type-dependent subexpressions to have no type, so
-   this function doesn't have to be fully recursive.  */
+   [temp.dep.expr].  */
 
 bool
 type_dependent_expression_p (tree expression)

gcc/cp/semantics.c

@@ -2028,20 +2028,8 @@ finish_call_expr (tree fn, VEC(tree,gc) **args, bool disallow_virtual,
 
   if (processing_template_decl)
     {
-      /* If the call expression is dependent, build a CALL_EXPR node
-	 with no type; type_dependent_expression_p recognizes
-	 expressions with no type as being dependent.  */
       if (type_dependent_expression_p (fn)
-	  || any_type_dependent_arguments_p (*args)
-	  /* For a non-static member function, we need to specifically
-	     test the type dependency of the "this" pointer because it
-	     is not included in *ARGS even though it is considered to
-	     be part of the list of arguments.  Note that this is
-	     related to CWG issues 515 and 1005.  */
-	  || (TREE_CODE (fn) == FUNCTION_DECL
-	      && DECL_NONSTATIC_MEMBER_FUNCTION_P (fn)
-	      && current_class_ref
-	      && type_dependent_expression_p (current_class_ref)))
+	  || any_type_dependent_arguments_p (*args))
 	{
 	  result = build_nt_call_vec (fn, *args);
 	  KOENIG_LOOKUP_P (result) = koenig_p;

gcc/testsuite/ChangeLog

@@ -22,11 +22,6 @@
 	* gcc.dg/ucnid-8.c: Likewise.
 	* Adapt dg-warning line number.
 
-2011-02-11  Dodji Seketeli  <dodji@redhat.com>
-
-	PR c++/47172
-	* g++.dg/template/inherit6.C: New test.
-
 2011-02-10  Uros Bizjak  <ubizjak@gmail.com>
 
 	* gcc.target/i386/parity-1.c: Use -march=k8.

gcc/testsuite/g++.dg/template/inherit6.C

-// Origin PR c++/47172
-// { dg-options "-std=c++0x" }
-// { dg-do compile }
-
-struct A
-{
-    int f() const;
-};
-
-template <class T>
-struct B : A { };
-
-template <class T>
-struct C : B<T>
-{
-    void g();
-};
-
-template <class T>
-void C<T>::g()
-{
-    A::f();
-}