1 /*
 2  * Copyright (c) 2018, 2025, 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
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24 
25 #ifndef SHARE_GC_SHARED_C2_CARDTABLEBARRIERSETC2_HPP
26 #define SHARE_GC_SHARED_C2_CARDTABLEBARRIERSETC2_HPP
27 
28 #include "gc/shared/c2/modRefBarrierSetC2.hpp"
29 
30 class CardTableBarrierSetC2: public ModRefBarrierSetC2 {
31 protected:
32   virtual void post_barrier(GraphKit* kit,
33                             Node* obj,
34                             Node* adr,
35                             Node* val,
36                             bool use_precise) const;
37 
38   Node* byte_map_base_node(GraphKit* kit) const;
39 
40 public:
41   virtual void eliminate_gc_barrier(PhaseIterGVN* igvn, Node* node) const;
42   virtual bool array_copy_requires_gc_barriers(bool tightly_coupled_alloc, BasicType type, bool is_clone, bool is_clone_instance, ArrayCopyPhase phase) const;
43 
44   static bool use_ReduceInitialCardMarks();
45 };
46 
47 #endif // SHARE_GC_SHARED_C2_CARDTABLEBARRIERSETC2_HPP