re PR c++/17530 (failure to emit inline function)

	PR c++/17530
	* pt.c (tsubst): Fix parentheses to accomodate emacs.
	(tsubst_baselink): If we get a single function, mark it as used.

	PR c++/17530
	* g++.dg/template/static7.C: New test.

From-SVN: r87791

gcc/cp/ChangeLog

+2004-09-20  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/17530
+	* pt.c (tsubst): Fix parentheses to accomodate emacs.
+	(tsubst_baselink): If we get a single function, mark it as used.
+
 2004-09-20  Matt Austern <austern@apple.com>
 	    Zack Weinberg  <zack@codesourcery.com>
 

gcc/cp/pt.c

@@ -7007,11 +7007,12 @@ tsubst (tree t, tree args, tsubst_flags_t complain, tree in_decl)
 	       single bad template instantiation.  */
 	    if (complain & tf_error
 #ifdef USE_MAPPED_LOCATION
-		&& last_loc != input_location)
+		&& last_loc != input_location
 #else
 		&& (last_loc.line != input_line
-		    || last_loc.file != input_filename))
+		    || last_loc.file != input_filename)
 #endif
+		  )
 	      {
 		if (TREE_CODE (type) == VOID_TYPE)
 		  error ("forming reference to void");
@@ -7323,11 +7324,23 @@ tsubst_baselink (tree baselink, tree object_type,
       }
     name = DECL_NAME (get_first_fn (fns));
     baselink = lookup_fnfields (qualifying_scope, name, /*protect=*/1);
+    
+    /* If lookup found a single function, mark it as used at this
+       point.  (If it lookup found multiple functions the one selected
+       later by overload resolution will be marked as used at that
+       point.)  */
+    if (BASELINK_P (baselink))
+      fns = BASELINK_FUNCTIONS (baselink);
+    if (!template_id_p && !really_overloaded_fn (fns))
+      mark_used (OVL_CURRENT (fns));
+
+    /* Add back the template arguments, if present.  */
     if (BASELINK_P (baselink) && template_id_p)
       BASELINK_FUNCTIONS (baselink) 
 	= build_nt (TEMPLATE_ID_EXPR,
 		    BASELINK_FUNCTIONS (baselink),
 		    template_args);
+
     if (!object_type)
       object_type = current_class_type;
     return adjust_result_of_qualified_name_lookup (baselink, 

gcc/testsuite/ChangeLog

+2004-09-20  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/17530
+	* g++.dg/template/static7.C: New test.
+
 2004-09-20  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR tree-opt/17558 

gcc/testsuite/g++.dg/template/static7.C

+// PR c++/17530
+// { dg-do link }
+
+typedef void (*Func) ();
+void f (Func) {}
+struct B
+{
+  static void staticfunc () {}
+};
+template <int> 
+void C(){ f (B::staticfunc); }
+int main ()
+{
+  C<0>();
+  return 0;
+}