Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright 2000-2006 Sun Microsystems, Inc.  All Rights Reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

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

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

  * CA 95054 USA or visit www.sun.com if you need additional information or

  * have any questions.

  *

  */

  private:

   //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

   //

   // Sparc load/store emission

   //

   // The sparc ld/st instructions cannot accomodate displacements > 13 bits long.

   // The following "pseudo" sparc instructions (load/store) make it easier to use the indexed addressing mode

   // by allowing 32 bit displacements:

   //

   //    When disp <= 13 bits long, a single load or store instruction is emitted with (disp + [d]).

   //    When disp >  13 bits long, code is emitted to set the displacement into the O7 register,

   //       and then a load or store is emitted with ([O7] + [d]).

   //

   // some load/store variants return the code_offset for proper positioning of debug info for null checks

   // load/store with 32 bit displacement

   int load(Register s, int disp, Register d, BasicType ld_type, CodeEmitInfo* info = NULL);

   void store(Register value, Register base, int offset, BasicType type, CodeEmitInfo *info = NULL);

   // loadf/storef with 32 bit displacement

   void load(Register s, int disp, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL);

   void store(FloatRegister d, Register s1, int disp, BasicType st_type, CodeEmitInfo* info = NULL);

   // convienence methods for calling load/store with an Address

   void load(const Address& a, Register d, BasicType ld_type, CodeEmitInfo* info = NULL, int offset = 0);

   void store(Register d, const Address& a, BasicType st_type, CodeEmitInfo* info = NULL, int offset = 0);

   void load(const Address& a, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL, int offset = 0);

   void store(FloatRegister d, const Address& a, BasicType st_type, CodeEmitInfo* info = NULL, int offset = 0);

   // convienence methods for calling load/store with an LIR_Address

   void load(LIR_Address* a, Register d, BasicType ld_type, CodeEmitInfo* info = NULL);

   void store(Register d, LIR_Address* a, BasicType st_type, CodeEmitInfo* info = NULL);

   void load(LIR_Address* a, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL);

   void store(FloatRegister d, LIR_Address* a, BasicType st_type, CodeEmitInfo* info = NULL);

   int store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool unaligned = false);

   int store(LIR_Opr from_reg, Register base, Register disp, BasicType type);

   int load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool unaligned = false);

   int load(Register base, Register disp, LIR_Opr to_reg, BasicType type);

   void monitorexit(LIR_Opr obj_opr, LIR_Opr lock_opr, Register hdr, int monitor_no);

   int shift_amount(BasicType t);

   static bool is_single_instruction(LIR_Op* op);

  public:

   void pack64( Register rs, Register rd );

   void unpack64( Register rd );

 enum {

 #ifdef _LP64

          call_stub_size = 68,

 #else

          call_stub_size = 20,

 #endif // _LP64

          exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4),

          deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4) };