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 30 class TypeOopPtr; 31 32 class ModRefBarrierSetC2: public BarrierSetC2 { 33 protected: 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(C2AtomicAccess& access, Node* expected_val, 58 Node* new_val, const Type* value_type) const; 59 virtual Node* atomic_cmpxchg_bool_at_resolved(C2AtomicAccess& access, Node* expected_val, 60 Node* new_val, const Type* value_type) const; 61 virtual Node* atomic_xchg_at_resolved(C2AtomicAccess& access, Node* new_val, const Type* value_type) const; 62 }; 63 64 #endif // SHARE_GC_SHARED_C2_MODREFBARRIERSETC2_HPP