1 /*
 2  * Copyright Amazon.com Inc. 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 #ifndef SHARE_GC_SHARED_GCFORWARDING_INLINE_HPP
26 #define SHARE_GC_SHARED_GCFORWARDING_INLINE_HPP
27 
28 #include "gc/shared/gcForwarding.hpp"
29 #include "gc/shared/slidingForwarding.inline.hpp"
30 #include "oops/oop.inline.hpp"
31 
32 inline bool GCForwarding::is_forwarded(oop obj) {
33   return obj->is_forwarded();
34 }
35 
36 inline bool GCForwarding::is_not_forwarded(oop obj) {
37   return !obj->is_forwarded();
38 }
39 
40 inline oop GCForwarding::forwardee(oop obj) {
41 #ifdef _LP64
42   if (UseCompactObjectHeaders) {
43     assert(_sliding_forwarding != nullptr, "expect sliding forwarding initialized");
44     return _sliding_forwarding->forwardee(obj);
45   } else
46 #endif
47     return obj->forwardee();
48 }
49 
50 inline void GCForwarding::forward_to(oop obj, oop fwd) {
51 #ifdef _LP64
52   if (UseCompactObjectHeaders) {
53     assert(_sliding_forwarding != nullptr, "expect sliding forwarding initialized");
54     _sliding_forwarding->forward_to(obj, fwd);
55     assert(forwardee(obj) == fwd, "must be forwarded to correct forwardee");
56   } else
57 #endif
58     obj->forward_to(fwd);
59 }
60 
61 #endif // SHARE_GC_SHARED_GCFORWARDING_INLINE_HPP