1/*
2 * Copyright (c) 2018, 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#ifndef SHARE_GC_SHARED_C2_MODREFBARRIERSETC2_HPP
26#define SHARE_GC_SHARED_C2_MODREFBARRIERSETC2_HPP
27
28#include "gc/shared/c2/barrierSetC2.hpp"
29
30class TypeOopPtr;
31
32class ModRefBarrierSetC2: public BarrierSetC2 {
33protected:
34 virtual void pre_barrier(GraphKit* kit,
35 bool do_load,
36 Node* ctl,
37 Node* obj,
38 Node* adr,
39 uint adr_idx,
40 Node* val,
41 const TypeOopPtr* val_type,
42 Node* pre_val,
43 BasicType bt) const {}
44
45 virtual void post_barrier(GraphKit* kit,
46 Node* ctl,
47 Node* store,
48 Node* obj,
49 Node* adr,
50 uint adr_idx,
51 Node* val,
52 BasicType bt,
53 bool use_precise) const {}
54
55 virtual Node* store_at_resolved(C2Access& access, C2AccessValue& val) const;
56
57 virtual Node* atomic_cmpxchg_val_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
58 Node* new_val, const Type* value_type) const;
59 virtual Node* atomic_cmpxchg_bool_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
60 Node* new_val, const Type* value_type) const;
61 virtual Node* atomic_xchg_at_resolved(C2AtomicParseAccess& access, Node* new_val, const Type* value_type) const;
62};
63
64#endif // SHARE_GC_SHARED_C2_MODREFBARRIERSETC2_HPP
65