rev 52354 : 8213199: GC abstraction for Assembler::needs_explicit_null_check()

   1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2018, SAP SE. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_S390_GC_SHARED_BARRIERSETASSEMBLER_S390_HPP
  27 #define CPU_S390_GC_SHARED_BARRIERSETASSEMBLER_S390_HPP
  28 
  29 #include "asm/macroAssembler.hpp"
  30 #include "memory/allocation.hpp"
  31 #include "oops/access.hpp"
  32 
  33 class InterpreterMacroAssembler;
  34 
  35 class BarrierSetAssembler: public CHeapObj<mtGC> {
  36 public:
  37   virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  38                                   Register src, Register dst, Register count) {}
  39   virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  40                                   Register dst, Register count, bool do_return = false);
  41 
  42   virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  43                        const Address& addr, Register dst, Register tmp1, Register tmp2, Label *L_handle_null = NULL);
  44   virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  45                         const Address& addr, Register val, Register tmp1, Register tmp2, Register tmp3);
  46 
  47   virtual void resolve_jobject(MacroAssembler* masm, Register value, Register tmp1, Register tmp2);
  48 
  49   virtual void barrier_stubs_init() {}


  50 };
  51 
  52 #endif // CPU_S390_GC_SHARED_BARRIERSETASSEMBLER_S390_HPP
--- EOF ---