src/cpu/sparc/vm/c1_LIRAssembler_sparc.hpp

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   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  private:
  26 
  27   //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  28   //
  29   // Sparc load/store emission
  30   //
  31   // The sparc ld/st instructions cannot accomodate displacements > 13 bits long.
  32   // The following "pseudo" sparc instructions (load/store) make it easier to use the indexed addressing mode
  33   // by allowing 32 bit displacements:
  34   //
  35   //    When disp <= 13 bits long, a single load or store instruction is emitted with (disp + [d]).
  36   //    When disp >  13 bits long, code is emitted to set the displacement into the O7 register,
  37   //       and then a load or store is emitted with ([O7] + [d]).
  38   //
  39 
  40   // some load/store variants return the code_offset for proper positioning of debug info for null checks
  41 
  42   // load/store with 32 bit displacement
  43   int load(Register s, int disp, Register d, BasicType ld_type, CodeEmitInfo* info = NULL);
  44   void store(Register value, Register base, int offset, BasicType type, CodeEmitInfo *info = NULL);


  73 
  74   // Record the type of the receiver in ReceiverTypeData
  75   void type_profile_helper(Register mdo, int mdo_offset_bias,
  76                            ciMethodData *md, ciProfileData *data,
  77                            Register recv, Register tmp1, Label* update_done);
  78   // Setup pointers to MDO, MDO slot, also compute offset bias to access the slot.
  79   void setup_md_access(ciMethod* method, int bci,
  80                        ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias);
  81  public:
  82   void   pack64(LIR_Opr src, LIR_Opr dst);
  83   void unpack64(LIR_Opr src, LIR_Opr dst);
  84 
  85 enum {
  86 #ifdef _LP64
  87          call_stub_size = 68,
  88 #else
  89          call_stub_size = 20,
  90 #endif // _LP64
  91          exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4),
  92          deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*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 CPU_SPARC_VM_C1_LIRASSEMBLER_SPARC_HPP
  26 #define CPU_SPARC_VM_C1_LIRASSEMBLER_SPARC_HPP
  27 
  28  private:
  29 
  30   //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  31   //
  32   // Sparc load/store emission
  33   //
  34   // The sparc ld/st instructions cannot accomodate displacements > 13 bits long.
  35   // The following "pseudo" sparc instructions (load/store) make it easier to use the indexed addressing mode
  36   // by allowing 32 bit displacements:
  37   //
  38   //    When disp <= 13 bits long, a single load or store instruction is emitted with (disp + [d]).
  39   //    When disp >  13 bits long, code is emitted to set the displacement into the O7 register,
  40   //       and then a load or store is emitted with ([O7] + [d]).
  41   //
  42 
  43   // some load/store variants return the code_offset for proper positioning of debug info for null checks
  44 
  45   // load/store with 32 bit displacement
  46   int load(Register s, int disp, Register d, BasicType ld_type, CodeEmitInfo* info = NULL);
  47   void store(Register value, Register base, int offset, BasicType type, CodeEmitInfo *info = NULL);


  76 
  77   // Record the type of the receiver in ReceiverTypeData
  78   void type_profile_helper(Register mdo, int mdo_offset_bias,
  79                            ciMethodData *md, ciProfileData *data,
  80                            Register recv, Register tmp1, Label* update_done);
  81   // Setup pointers to MDO, MDO slot, also compute offset bias to access the slot.
  82   void setup_md_access(ciMethod* method, int bci,
  83                        ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias);
  84  public:
  85   void   pack64(LIR_Opr src, LIR_Opr dst);
  86   void unpack64(LIR_Opr src, LIR_Opr dst);
  87 
  88 enum {
  89 #ifdef _LP64
  90          call_stub_size = 68,
  91 #else
  92          call_stub_size = 20,
  93 #endif // _LP64
  94          exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4),
  95          deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4) };
  96 
  97 #endif // CPU_SPARC_VM_C1_LIRASSEMBLER_SPARC_HPP