class.c (resolve_address_of_overloaded_function): Mark the chosen function used.

* class.c (resolve_address_of_overloaded_function): Mark the
	chosen function used.
	* call.c (build_call): Make sure that a function coming in has
	been marked used already.
	* decl.c (expand_static_init): Call mark_used instead of
	assemble_external.
	* except.c (call_eh_info, do_pop_exception, expand_end_eh_spec,
	alloc_eh_object, expand_throw): Likewise.
	* init.c (build_builtin_delete_call): Likewise.
	* rtti.c (call_void_fn, get_tinfo_fn, build_dynamic_cast_1,
	expand_si_desc, expand_class_desc, expand_ptr_desc, expand_attr_desc,
	expand_generic_desc): Likewise.

From-SVN: r24862

gcc/cp/ChangeLog

@@ -1,3 +1,19 @@
+1999-01-25  Jason Merrill  <jason@yorick.cygnus.com>
+
+	* class.c (resolve_address_of_overloaded_function): Mark the
+	chosen function used.
+
+	* call.c (build_call): Make sure that a function coming in has
+	been marked used already.
+	* decl.c (expand_static_init): Call mark_used instead of
+	assemble_external.
+	* except.c (call_eh_info, do_pop_exception, expand_end_eh_spec, 
+	alloc_eh_object, expand_throw): Likewise.
+	* init.c (build_builtin_delete_call): Likewise.
+	* rtti.c (call_void_fn, get_tinfo_fn, build_dynamic_cast_1, 
+	expand_si_desc, expand_class_desc, expand_ptr_desc, expand_attr_desc,
+	expand_generic_desc): Likewise.
+
 1999-01-25  Martin von Löwis  <loewis@informatik.hu-berlin.de>
 
 	* tree.c (equal_functions): New function.

gcc/cp/call.c

@@ -1,5 +1,5 @@
 /* Functions related to invoking methods and overloaded functions.
-   Copyright (C) 1987, 92-97, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1987, 92-97, 1998, 1999 Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com) and
    modified by Brendan Kehoe (brendan@cygnus.com).
 
@@ -552,6 +552,9 @@ build_call (function, result_type, parms)
   if (decl && DECL_CONSTRUCTOR_P (decl))
     is_constructor = 1;
 
+  if (decl)
+    my_friendly_assert (TREE_USED (decl), 990125);
+
   /* Don't pass empty class objects by value.  This is useful
      for tags in STL, which are used to control overload resolution.
      We don't need to handle other cases of copying empty classes.  */

gcc/cp/class.c

@@ -5229,6 +5229,8 @@ resolve_address_of_overloaded_function (target_type,
   /* Good, exactly one match.  Now, convert it to the correct type.  */
   fn = TREE_PURPOSE (matches);
 
+  mark_used (fn);
+
   if (TYPE_PTRFN_P (target_type) || TYPE_PTRMEMFUNC_P (target_type))
     return build_unary_op (ADDR_EXPR, fn, 0);
   else

gcc/cp/decl.c

@@ -8147,7 +8147,7 @@ expand_static_init (decl, init)
 				    build_function_type (void_type_node,
 							 pfvlist),
 				    NOT_BUILT_IN, NULL_PTR);
-	      assemble_external (atexit_fndecl);
+	      mark_used (atexit_fndecl);
 	      Atexit = default_conversion (atexit_fndecl);
 	      pop_lang_context ();
 	      pop_obstacks ();

gcc/cp/except.c

@@ -1,5 +1,5 @@
 /* Handle exceptional things in C++.
-   Copyright (C) 1989, 92-97, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1989, 92-97, 1998, 1999 Free Software Foundation, Inc.
    Contributed by Michael Tiemann <tiemann@cygnus.com>
    Rewritten by Mike Stump <mrs@cygnus.com>, based upon an
    initial re-implementation courtesy Tad Hunt.
@@ -318,9 +318,9 @@ call_eh_info ()
       DECL_ARTIFICIAL (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
+  mark_used (fn);
   return build_function_call (fn, NULL_TREE);
 }
 
@@ -531,10 +531,10 @@ do_pop_exception ()
       DECL_ARTIFICIAL (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
 
+  mark_used (fn);
   /* Arrange to do a dynamically scoped cleanup upon exit from this region.  */
   cleanup = lookup_name (get_identifier ("__exception_info"), 0);
   cleanup = build_function_call (fn, expr_tree_cons
@@ -797,10 +797,10 @@ expand_end_eh_spec (raises)
       TREE_THIS_VOLATILE (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
 
+  mark_used (fn);
   tmp = expr_tree_cons (NULL_TREE, build_int_2 (count, 0), expr_tree_cons
 			(NULL_TREE, decl, NULL_TREE));
   tmp = build_call (fn, TREE_TYPE (TREE_TYPE (fn)), tmp);
@@ -939,10 +939,10 @@ alloc_eh_object (type)
       DECL_ARTIFICIAL (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
 
+  mark_used (fn);
   exp = build_function_call (fn, expr_tree_cons
 			     (NULL_TREE, size_in_bytes (type), NULL_TREE));
   exp = build1 (NOP_EXPR, build_pointer_type (type), exp);
@@ -1096,10 +1096,10 @@ expand_throw (exp)
 	  DECL_ARTIFICIAL (fn) = 1;
 	  pushdecl_top_level (fn);
 	  make_function_rtl (fn);
-	  assemble_external (fn);
 	  pop_obstacks ();
 	}
 
+      mark_used (fn);
       e = expr_tree_cons (NULL_TREE, exp, expr_tree_cons
 			  (NULL_TREE, throw_type, expr_tree_cons
 			   (NULL_TREE, cleanup, NULL_TREE)));
@@ -1127,10 +1127,10 @@ expand_throw (exp)
 	  DECL_ARTIFICIAL (fn) = 1;
 	  pushdecl_top_level (fn);
 	  make_function_rtl (fn);
-	  assemble_external (fn);
 	  pop_obstacks ();
 	}
 
+      mark_used (fn);
       exp = build_function_call (fn, NULL_TREE);
       expand_expr (exp, const0_rtx, VOIDmode, EXPAND_NORMAL);
     }

gcc/cp/init.c

@@ -1,5 +1,5 @@
 /* Handle initialization things in C++.
-   Copyright (C) 1987, 89, 92-97, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1987, 89, 92-98, 1999 Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com)
 
 This file is part of GNU CC.
@@ -1861,7 +1861,7 @@ static tree
 build_builtin_delete_call (addr)
      tree addr;
 {
-  assemble_external (global_delete_fndecl);
+  mark_used (global_delete_fndecl);
   return build_call (global_delete_fndecl, 
 		     void_type_node, build_expr_list (NULL_TREE, addr));
 }

gcc/cp/rtti.c

@@ -1,5 +1,5 @@
 /* RunTime Type Identification
-   Copyright (C) 1995, 96-97, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1995, 96-97, 1998, 1999 Free Software Foundation, Inc.
    Mostly written by Jason Merrill (jason@cygnus.com).
 
 This file is part of GNU CC.
@@ -151,11 +151,10 @@ call_void_fn (name)
       DECL_ARTIFICIAL (d) = 1;
       pushdecl_top_level (d);
       make_function_rtl (d);
-      assemble_external (d);
-
       pop_obstacks ();
     }
 
+  mark_used (d);
   return build_call (d, void_type_node, NULL_TREE);
 }
 
@@ -377,7 +376,7 @@ get_tinfo_fn (type)
 
   pushdecl_top_level (d);
   make_function_rtl (d);
-  assemble_external (d);
+  mark_used (d);
   mark_inline_for_output (d);
   pop_obstacks ();
 
@@ -653,10 +652,10 @@ build_dynamic_cast_1 (type, expr)
 	      DECL_ARTIFICIAL (dcast_fn) = 1;
 	      pushdecl_top_level (dcast_fn);
 	      make_function_rtl (dcast_fn);
-	      assemble_external (dcast_fn);
 	      pop_obstacks ();
 	    }
 	  
+	  mark_used (dcast_fn);
           result = build_call
 	    (dcast_fn, TREE_TYPE (TREE_TYPE (dcast_fn)), elems);
 
@@ -751,10 +750,10 @@ expand_si_desc (tdecl, type)
       DECL_ARTIFICIAL (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
 
+  mark_used (fn);
   fn = build_call (fn, TREE_TYPE (TREE_TYPE (fn)), elems);
   expand_expr_stmt (fn);
 }
@@ -932,10 +931,10 @@ expand_class_desc (tdecl, type)
       DECL_ARTIFICIAL (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
 
+  mark_used (fn);
   fn = build_call (fn, TREE_TYPE (TREE_TYPE (fn)), elems);
   expand_expr_stmt (fn);
 }
@@ -979,10 +978,10 @@ expand_ptr_desc (tdecl, type)
       DECL_ARTIFICIAL (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
 
+  mark_used (fn);
   fn = build_call (fn, TREE_TYPE (TREE_TYPE (fn)), elems);
   expand_expr_stmt (fn);
 }
@@ -1027,10 +1026,10 @@ expand_attr_desc (tdecl, type)
       DECL_ARTIFICIAL (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
 
+  mark_used (fn);
   fn = build_call (fn, TREE_TYPE (TREE_TYPE (fn)), elems);
   expand_expr_stmt (fn);
 }
@@ -1067,10 +1066,10 @@ expand_generic_desc (tdecl, type, fnname)
       DECL_ARTIFICIAL (fn) = 1;
       pushdecl_top_level (fn);
       make_function_rtl (fn);
-      assemble_external (fn);
       pop_obstacks ();
     }
 
+  mark_used (fn);
   fn = build_call (fn, TREE_TYPE (TREE_TYPE (fn)), elems);
   expand_expr_stmt (fn);
 }