1 /*
   2  * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   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_MACROASSEMBLER_SPARC_HPP
  26 #define CPU_SPARC_VM_C1_MACROASSEMBLER_SPARC_HPP
  27 
  28   void pd_init() { /* nothing to do */ }
  29 
  30  public:
  31    void try_allocate(
  32     Register obj,                      // result: pointer to object after successful allocation
  33     Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
  34     int      con_size_in_bytes,        // object size in bytes if   known at compile time
  35     Register t1,                       // temp register
  36     Register t2,                       // temp register
  37     Label&   slow_case                 // continuation point if fast allocation fails
  38   );
  39 
  40   void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
  41   void initialize_body(Register base, Register index);
  42 
  43   // locking/unlocking
  44   void lock_object  (Register Rmark, Register Roop, Register Rbox, Register Rscratch, Label& slow_case);
  45   void unlock_object(Register Rmark, Register Roop, Register Rbox,                    Label& slow_case);
  46 
  47   void initialize_object(
  48     Register obj,                      // result: pointer to object after successful allocation
  49     Register klass,                    // object klass
  50     Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
  51     int      con_size_in_bytes,        // object size in bytes if   known at compile time
  52     Register t1,                       // temp register
  53     Register t2                        // temp register
  54   );
  55 
  56   // allocation of fixed-size objects
  57   // (can also be used to allocate fixed-size arrays, by setting
  58   // hdr_size correctly and storing the array length afterwards)
  59   void allocate_object(
  60     Register obj,                      // result: pointer to object after successful allocation
  61     Register t1,                       // temp register
  62     Register t2,                       // temp register
  63     Register t3,                       // temp register
  64     int      hdr_size,                 // object header size in words
  65     int      obj_size,                 // object size in words
  66     Register klass,                    // object klass
  67     Label&   slow_case                 // continuation point if fast allocation fails
  68   );
  69 
  70   enum {
  71     max_array_allocation_length = 0x01000000 // sparc friendly value, requires sethi only
  72   };
  73 
  74   // allocation of arrays
  75   void allocate_array(
  76     Register obj,                      // result: pointer to array after successful allocation
  77     Register len,                      // array length
  78     Register t1,                       // temp register
  79     Register t2,                       // temp register
  80     Register t3,                       // temp register
  81     int      hdr_size,                 // object header size in words
  82     int      elt_size,                 // element size in bytes
  83     Register klass,                    // object klass
  84     Label&   slow_case                 // continuation point if fast allocation fails
  85   );
  86 
  87   // invalidates registers in this window
  88   void invalidate_registers(bool iregisters, bool lregisters, bool oregisters,
  89                             Register preserve1 = noreg, Register preserve2 = noreg);
  90 
  91   // This platform only uses signal-based null checks. The Label is not needed.
  92   void null_check(Register r, Label *Lnull = NULL) { MacroAssembler::null_check(r); }
  93 
  94 #endif // CPU_SPARC_VM_C1_MACROASSEMBLER_SPARC_HPP