JDK14/Java14源码在线阅读

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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP
#define CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP

#include "asm/macroAssembler.hpp"
#include "gc/shared/barrierSetAssembler.hpp"

// The ModRefBarrierSetAssembler filters away accesses on BasicTypes other
// than T_OBJECT/T_ARRAY (oops). The oop accesses call one of the protected
// accesses, which are overridden in the concrete BarrierSetAssembler.

class ModRefBarrierSetAssembler: public BarrierSetAssembler {
protected:
  virtual void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators,
                                               Register addr, Register count, int callee_saved_regs) {}
  virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
                                                Register addr, Register count, Register tmp) {}

  virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
                            Address obj, Register val, Register tmp1, Register tmp2, Register tmp3, bool is_null) = 0;

public:
  virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
                                  Register addr, Register count, int callee_saved_regs);
  virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,

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