diff --git a/src/hotspot/share/gc/shared/c2/modRefBarrierSetC2.hpp b/src/hotspot/share/gc/shared/c2/modRefBarrierSetC2.hpp new file mode 100644 index 0000000..faa356a --- /dev/null +++ b/src/hotspot/share/gc/shared/c2/modRefBarrierSetC2.hpp @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_GC_SHARED_C2_MODREFBARRIERSETC2_HPP +#define SHARE_GC_SHARED_C2_MODREFBARRIERSETC2_HPP + +#include "gc/shared/c2/barrierSetC2.hpp" + +class TypeOopPtr; + +class ModRefBarrierSetC2: public BarrierSetC2 { +protected: + virtual void pre_barrier(GraphKit* kit, + bool do_load, + Node* ctl, + Node* obj, + Node* adr, + uint adr_idx, + Node* val, + const TypeOopPtr* val_type, + Node* pre_val, + BasicType bt) const {} + + virtual void post_barrier(GraphKit* kit, + Node* ctl, + Node* store, + Node* obj, + Node* adr, + uint adr_idx, + Node* val, + BasicType bt, + bool use_precise) const {} + + virtual Node* store_at_resolved(C2Access& access, C2AccessValue& val) const; + + virtual Node* atomic_cmpxchg_val_at_resolved(C2AtomicAccess& access, Node* expected_val, + Node* new_val, const Type* value_type) const; + virtual Node* atomic_cmpxchg_bool_at_resolved(C2AtomicAccess& access, Node* expected_val, + Node* new_val, const Type* value_type) const; + virtual Node* atomic_xchg_at_resolved(C2AtomicAccess& access, Node* new_val, const Type* value_type) const; +}; + +#endif // SHARE_GC_SHARED_C2_MODREFBARRIERSETC2_HPP