cp-tree.h (build_shared_int_cst): New function.

	* cp-tree.h (build_shared_int_cst): New function.
	* call.c (build_over_call): Use DECL_VIRTUAL_CONTEXT, for clarity.
	* class.c (modify_vtable_entry): Likewise.
	(add_virtual_function): Split out code to generated shared
	INTEGER_CSTs to build_share_int_cst.
	(modify_all_vtables): Handle all the overridden functions here.
	Add overridden functions from non-primary virtual bases to the
	primary vtable.
	(finish_struct_1): Adjust call to modify_all_vtables.  Add
	overridden functions from non-primary bases to the vtable.
	* tree.c (build_shared_int_cst): New function.

From-SVN: r31476

1 files changed, 21 insertions, 1 deletions

diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c
index 3c342d5..3bf874a 100644
--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -1,5 +1,5 @@
 /* Language-dependent node constructors for parse phase of GNU compiler.
-   Copyright (C) 1987, 88, 92-98, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1987, 88, 92-98, 1999, 2000 Free Software Foundation, Inc.
    Hacked by Michael Tiemann (tiemann@cygnus.com)
 
 This file is part of GNU CC.
@@ -1710,6 +1710,26 @@ build_min VPROTO((enum tree_code code, tree tt, ...))
   return t;
 }
 
+/* Returns an INTEGER_CST (of type `int') corresponding to I.
+   Multiple calls with the same value of I may or may not yield the
+   same node; therefore, callers should never modify the node
+   returned.  */
+
+tree
+build_shared_int_cst (i)
+     int i;
+{
+  static tree cache[256];
+
+  if (i >= 256)
+    return build_int_2 (i, 0);
+  
+  if (!cache[i])
+    cache[i] = build_int_2 (i, 0);
+  
+  return cache[i];
+}
+
 tree
 get_type_decl (t)
      tree t;