1 /*
   2  * Copyright (c) 2017, 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_VM_GC_SHARED_C1BARRIERSETCODEGEN_HPP
  26 #define SHARE_VM_GC_SHARED_C1BARRIERSETCODEGEN_HPP
  27 
  28 #include "c1/c1_Decorators.hpp"
  29 #include "c1/c1_LIRGenerator.hpp"
  30 #include "c1/c1_Instruction.hpp"
  31 #include "c1/c1_LIR.hpp"
  32 
  33 class LIRGenerator;
  34 class LIRItem;
  35 
  36 class C1BarrierSetCodeGen: public CHeapObj<mtGC> {
  37 protected:
  38   virtual LIR_Opr resolve_address(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  39                                   LIRItem& base, LIR_Opr offset, bool resolve_in_register);
  40 
  41   virtual void generate_referent_check(LIRGenerator* lir_generator, LIRItem& base, LIR_Opr offset, LabelObj* cont);
  42 
  43   // Accesses with resolved address
  44   virtual void store_at_resolved(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  45                                  LIR_Opr addr, LIRItem& base, LIR_Opr offset, LIR_Opr value,
  46                                  CodeEmitInfo* patch_info, CodeEmitInfo* store_emit_info);
  47 
  48   virtual LIR_Opr load_at_resolved(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  49                                    LIR_Opr addr, LIRItem& base, LIR_Opr offset,
  50                                    CodeEmitInfo* patch_info, CodeEmitInfo* load_emit_info);
  51 
  52   virtual LIR_Opr cas_at_resolved(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  53                                   LIR_Opr addr, LIRItem& base, LIRItem& offset, LIRItem& cmp_value, LIRItem& new_value);
  54 
  55   virtual LIR_Opr swap_at_resolved(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  56                                    LIR_Opr addr, LIRItem& base, LIRItem& offset, LIRItem& value);
  57 
  58   virtual LIR_Opr add_at_resolved(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  59                                   LIR_Opr addr, LIRItem& base, LIRItem& offset, LIRItem& value);
  60 
  61 public:
  62   virtual void store_at(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  63                         LIRItem& base, LIR_Opr offset, LIR_Opr value,
  64                         CodeEmitInfo* patch_info, CodeEmitInfo* store_emit_info);
  65 
  66   virtual LIR_Opr load_at(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  67                           LIRItem& base, LIR_Opr offset,
  68                           CodeEmitInfo* patch_info, CodeEmitInfo* load_emit_info);
  69 
  70   virtual LIR_Opr cas_at(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  71                          LIRItem& base, LIRItem& offset, LIRItem& cmp_value, LIRItem& new_value);
  72 
  73   virtual LIR_Opr swap_at(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  74                           LIRItem& base, LIRItem& offset, LIRItem& value);
  75 
  76   virtual LIR_Opr add_at(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
  77                          LIRItem& base, LIRItem& offset, LIRItem& value);
  78 
  79   virtual void generate_c1_runtime_stubs(BufferBlob* buffer_blob) {}
  80 };
  81 
  82 #endif // SHARE_VM_GC_SHARED_C1BARRIERSETCODEGEN_HPP