1 /*
2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "ci/ciBaseObject.hpp"
27 #include "ci/ciUtilities.hpp"
28 #include "gc_interface/collectedHeap.inline.hpp"
29
30 // ------------------------------------------------------------------
31 // ciBaseObject::set_ident
32 //
33 // Set the unique identity number of a ciBaseObject.
34 void ciBaseObject::set_ident(uint id) {
35 assert((_ident >> FLAG_BITS) == 0, "must only initialize once");
36 assert( id < ((uint)1 << (BitsPerInt-FLAG_BITS)), "id too big");
37 _ident = _ident + (id << FLAG_BITS);
38 }
39
40 // ------------------------------------------------------------------
41 // ciBaseObject::ident
42 //
43 // Report the unique identity number of a ciBaseObject.
44 uint ciBaseObject::ident() {
45 uint id = _ident >> FLAG_BITS;
46 assert(id != 0, "must be initialized");
47 return id;
48 }