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src/hotspot/cpu/arm/gc/shared/modRefBarrierSetAssembler_arm.hpp

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rev 49916 : 8201786: Modularize interpreter GC barriers: leftovers for ARM32
Reviewed-by: enevill


  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 CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP
  26 #define CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP
  27 
  28 #include "asm/macroAssembler.hpp"
  29 #include "gc/shared/barrierSetAssembler.hpp"
  30 




  31 class ModRefBarrierSetAssembler: public BarrierSetAssembler {
  32 protected:
  33   virtual void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators,
  34                                                Register addr, Register count, int callee_saved_regs) {}
  35   virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
  36                                                 Register addr, Register count, Register tmp) {}
  37 



  38 public:
  39   virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
  40                                   Register addr, Register count, int callee_saved_regs);
  41   virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
  42                                   Register addr, Register count, Register tmp);


  43 };
  44 
  45 #endif // CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP


  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 CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP
  26 #define CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP
  27 
  28 #include "asm/macroAssembler.hpp"
  29 #include "gc/shared/barrierSetAssembler.hpp"
  30 
  31 // The ModRefBarrierSetAssembler filters away accesses on BasicTypes other
  32 // than T_OBJECT/T_ARRAY (oops). The oop accesses call one of the protected
  33 // accesses, which are overridden in the concrete BarrierSetAssembler.
  34 
  35 class ModRefBarrierSetAssembler: public BarrierSetAssembler {
  36 protected:
  37   virtual void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators,
  38                                                Register addr, Register count, int callee_saved_regs) {}
  39   virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
  40                                                 Register addr, Register count, Register tmp) {}
  41 
  42   virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  43                             Address obj, Register val, Register tmp1, Register tmp2, Register tmp3, bool is_null) = 0;
  44 
  45 public:
  46   virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
  47                                   Register addr, Register count, int callee_saved_regs);
  48   virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
  49                                   Register addr, Register count, Register tmp);
  50   virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  51                         Address obj, Register val, Register tmp1, Register tmp2, Register tmp3, bool is_null);
  52 };
  53 
  54 #endif // CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP
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