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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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#ifndef CPU_PPC_GC_SHARED_MODREFBARRIERSETASSEMBLER_PPC_HPP

#define CPU_PPC_GC_SHARED_MODREFBARRIERSETASSEMBLER_PPC_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 from, Register to, Register count,

                                               Register preserve1, Register preserve2) {}

  virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators, Register addr, Register count, Register preserve) {}

  virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,

                            Register base, RegisterOrConstant ind_or_offs, Register val,

                            Register tmp1, Register tmp2, Register tmp3, bool needs_frame) = 0;

public:

  virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,

                                  Register src, Register dst, Register count, Register preserve1, Register preserve2);

  virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,

                                  Register dst, Register count, Register preserve);

  virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,

                        Register base, RegisterOrConstant ind_or_offs, Register val,

                        Register tmp1, Register tmp2, Register tmp3, bool needs_frame);

};

#endif // CPU_PPC_GC_SHARED_MODREFBARRIERSETASSEMBLER_PPC_HPP