decl2.c (mark_vtable_entries): Don't make a copy of a function, and then make it look like `abort'.

	* decl2.c (mark_vtable_entries): Don't make a copy of a function,
	and then make it look like `abort'.  Just use `abort' instead.

From-SVN: r27131

gcc/cp/ChangeLog

 1999-05-24  Mark Mitchell  <mark@codesourcery.com>
 
+	* decl2.c (mark_vtable_entries): Don't make a copy of a function,
+	and then make it look like `abort'.  Just use `abort' instead.
+	
 	* typeck.c (build_static_cast): Don't allow static_casts that cast
 	away constness.
 	(casts_away_constness_r): New function.

gcc/cp/decl2.c

@@ -2424,8 +2424,7 @@ mark_vtable_entries (decl)
       TREE_ADDRESSABLE (fn) = 1;
       if (DECL_LANG_SPECIFIC (fn) && DECL_ABSTRACT_VIRTUAL_P (fn))
 	{
-	  TREE_OPERAND (fnaddr, 0) = fn = copy_node (fn);
-	  DECL_RTL (fn) = DECL_RTL (abort_fndecl);
+	  TREE_OPERAND (fnaddr, 0) = abort_fndecl;
 	  mark_used (abort_fndecl);
 	}
       if (TREE_CODE (fn) == THUNK_DECL && DECL_EXTERNAL (fn))

gcc/testsuite/g++.old-deja/g++.pt/virtual2.C

+// Build don't link:
+// Origin: Mark Mitchell <mark@codesourcery.com>
+
+template <class T>
+struct B 
+{
+  virtual void f() = 0;
+};
+
+template <class T>
+struct D : public B<T> {
+  virtual void f();
+};
+
+void g() {
+  B<int>* bi = new D<int>;
+};
+
+template <class T>
+void B<T>::f() {}
+